CN102465887A - Pump device - Google Patents
Pump device Download PDFInfo
- Publication number
- CN102465887A CN102465887A CN2011103214282A CN201110321428A CN102465887A CN 102465887 A CN102465887 A CN 102465887A CN 2011103214282 A CN2011103214282 A CN 2011103214282A CN 201110321428 A CN201110321428 A CN 201110321428A CN 102465887 A CN102465887 A CN 102465887A
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- China
- Prior art keywords
- peeling
- prevent
- groove
- stator
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011347 resin Substances 0.000 claims abstract description 120
- 229920005989 resin Polymers 0.000 claims abstract description 120
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 20
- 238000000465 moulding Methods 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
A pump device helps to improve the restraint force by which a resin component for covering stators and the like is separated from a dividing wall component for restraint. The dividing wall component is equipped with a dividing wall arranged between a stator and a pump chamber. The pump device comprises a dividing wall component (11) which is provided with a dividing wall (11a). The dividing wall is arranged between the pump chamber for arragement of an impeller and a rotor and the stator, thereby preventing fluid in the pump chamber from flowing into the arrangement position of the stator. The pump device also comprises a resin component made from resin, and the resin component is formed in a way that the stator is covered. The dividing wall (11a) is formed to be in the shape of a cylinder with a flange, and comprises a cylinder portion (11b), a bottom (11c) and a flange (11d). The resin component is formed in a way that the cylinder portion (11b) and the bottom (11c) are covered and the surface on one side of the flange (11d) is covered. The periphery of the cylinder portion (11b) is equipped with anti-separation groove (11j) which is used for preventing the resin component from separating from the dividing wall component (11).
Description
Technical field
The present invention relates to a kind of pump-unit that disposes partition, the anti-fluid of this partition flows between the configuration position of the pump chamber that disposes impeller and rotor and stator.
Background technique
At present, known have a kind of pump-unit that disposes dividing plate (partition), and the anti-fluid of this partition flows between the configuration position of the pump chamber that disposes impeller and rotor and stator and substrate (for example with reference to patent documentation 1).In the pump-unit that patent documentation 1 is put down in writing, shelf-shaped becomes flanged round-ended cylinder shape that has, and has drum portion and lip part.In addition, in this pump-unit, for anti-fluid immerses stator and substrate, stator and substrate are covered by moulding resin.Except stator and substrate, this moulding resin also covers the surface and the drum portion in a side of lip part.
In addition, this moulding resin forms through molding and forming.Particularly, be disposed in the mould, and resin is injected in this mould and makes this hardening of resin, thereby form moulding resin through the dividing plate that stator and substrate will be installed.In the pump-unit that patent documentation 1 is put down in writing, be provided with Drop-proof and use projection, this Drop-proof is used to prevent that with projection dividing plate floats (being that moulding resin is peeled off from dividing plate) from moulding resin after opening mould.For example, this Drop-proof is formed in the center of the bottom of drum portion with protrusion-shaped.In addition, this Drop-proof becomes flanged cylindric with protrusion-shaped.
Patent documentation 1: Japanese Patent Laid is opened the 2008-75462 communique
In the pump-unit that patent documentation 1 is put down in writing, as stated, owing on dividing plate, be formed with Drop-proof and use projection, so can prevent that moulding resin from peeling off from dividing plate.Yet; In this pump-unit; Owing to be to form Drop-proof in the bottom of the drum portion of dividing plate use projection, though so can prevent effectively that moulding resin from peeling off from the bottom of the drum portion of dividing plate, can not prevent effectively that moulding resin from peeling off from the lip part of dividing plate.Because the interface between lip part and the moulding resin exposes at the outer circumferential face of pump-unit, therefore, in case moulding resin is peeled off from the lip part of dividing plate, the possibility of fluid immersion stator etc. will increase.
In addition, in the pump-unit that patent documentation 1 is put down in writing, the Drop-proof at bottom centre place of drum portion that is formed at dividing plate is little with the area of the lip part of projection.Therefore, in this pump-unit, the direction of peeling off from a wall member towards moulding resin when the peeling force of moulding resin, be that the axial side of pump-unit is done the time spent, moulding resin is less with the hook amount of the lip part of projection with respect to Drop-proof.Therefore, in this pump-unit, it is less that moulding resin is peeled off the restraint that suppresses from dividing plate, thereby can not prevent fully that perhaps moulding resin from peeling off from dividing plate.
Summary of the invention
Therefore, first technical problem of the present invention is to provide a kind of and can prevents effectively that fluid immerses the pump-unit of the stator that covered by resin component element etc.
In addition, second technical problem of the present invention is to provide a kind of can the raising that the resin component element of covering stator etc. is peeled off the pump-unit of the restraint that suppresses from a wall member, is being formed with the partition that is disposed between stator and the pump chamber on this wall member.
For solving above-mentioned first technical problem, the characteristic of pump-unit of the present invention is to comprise: impeller; Rotor, mounted impeller on this rotor; Stator, this stator arrangement is in the outer circumferential side of rotor; Pump chamber disposes impeller and rotor in this pump chamber, and fluid flows through this pump chamber; Between wall member, this wall member has partition, this partition is disposed between stator and the pump chamber to prevent that the fluid in the pump chamber from flowing into the configuration position of stator; And resinous resin component element; This resin component element forms with the mode that stator is covered; Partition forms flanged round-ended cylinder shape that roughly has, and has bottom, cylindrical part and lip part, and lip part forms with the mode that enlarges towards the radial outside of cylindrical part from the opening side end of cylindrical part; When with cylindrical part axially on a side that disposes the bottom when being made as a side; Resin component element to be covering bottom and cylindrical part and the mode in the surface coverage of a side of lip part is formed, and disposes the portion of preventing of peeling off in a side of lip part, and this is peeled off the portion of preventing and resin component element from peeling off from a wall member.
In solving the pump-unit of the present invention of above-mentioned first technical problem, when with cylindrical part axially on a side that disposes the bottom when being made as a side, dispose the portion of preventing of peeling off in a side of lip part, this is peeled off the portion of preventing and resin component element from peeling off from a wall member.Therefore, can prevent effectively to peel off from a side surface of lip part with the resin component element that the mode on the surface of a side that covers lip part forms.Therefore, in the present invention,, can prevent effectively that also fluid immerses the stator that covered by resin component element etc. even if the interface between lip part and the resin component element exposes at the outer circumferential face of pump-unit.
In the present invention, for example, peel off the portion of preventing and comprise: prevent to use projection from lip part towards side-prominent peeling off; And form or be fixed in to peel off and prevent to prevent member with peeling off of projection, at lip part and peel off and prevent to be formed with between the member gap, in this gap, dispose the part of resin component element.In this case, peel off and prevent that member is as preventing that the anchor log that resin component element is peeled off from lip part from working.That is, in this case, can utilize to peel off to prevent that member from preventing that resin component element from peeling off from lip part.
In the present invention, comparatively it is desirable to, peel off the portion of preventing and comprise that a plurality of peeling off prevents to use projection, peel off that to prevent that member from forming circular, and be fixed in a plurality of peeling off with the mode that cylindrical part is surrounded and prevent to use projection.When such formation, with peel off cut apart on the circumferencial direction that the portion of preventing is included in cylindrical part a plurality of peel off prevent member situation relatively, when the assemble pump device, peel off and prevent that member from handling easily.In addition, can cut down the number of spare parts of pump-unit.Particularly, comparatively it is desirable to, stator has stator core; In this stator core, be formed with a plurality of prominent utmost point portion; In this a plurality of prominent utmost point portion, be wound with to drive and use coil, peel off and prevent that member from being to form a circular ring flat-plate, the size of the external diameter of this ring flat-plate is set across bobbin; Make this external diameter be in outside end face position more in the inner part than lip part; And, the size of the internal diameter of this ring flat-plate is set, make this internal diameter be in than be fixed in the bobbin position more in the outer part in a plurality of prominent utmost point portion of stator core.In addition, comparatively it is desirable to, peel off and prevent to become the outside end face position more in the inner part that is positioned at than lip part, and be positioned at than be fixed in the bobbin position more in the outer part in a plurality of prominent utmost point portion of stator core with protrusion-shaped.In addition, can adopt following structure: peel off prevent with projection be with lip part integrally formed and from lip part towards a side-prominent projection, peel off and prevent that member is fixed in to peel off through thermal weld or ultrasonic welding and prevent to use projection.
In the present invention, peel off the portion of preventing and to comprise that also a plurality of peeling off prevents to prevent member with projection and a plurality of peeling off.In this case; Both can make to peel off and prevent with the quantity of projection with to peel off the quantity that prevents member identical; And peel off on preventing with projection fixing respectively or be formed with one and peel off and prevent member at each; Also can make and peel off the quantity that prevents member and lack, and peel off on preventing with projection fixing or be formed with one and peel off and prevent member at several than peeling off the quantity that prevents with projection.In this case too, comparatively it is desirable to, peel off and prevent to become the outside end face position more in the inner part that is positioned at than lip part, and be positioned at than be fixed in the bobbin position more in the outer part in a plurality of prominent utmost point portion of stator core with protrusion-shaped.
In addition, for solving above-mentioned second technical problem, the characteristic of pump-unit of the present invention is to comprise: impeller; Rotor, mounted impeller on this rotor; Stator, this stator arrangement is in the outer circumferential side of rotor; Pump chamber disposes impeller and rotor in this pump chamber, and fluid flows through this pump chamber; Between wall member, this wall member has partition, this partition is disposed between stator and the pump chamber to prevent that the fluid in the pump chamber from flowing into the configuration position of stator; And resinous resin component element; This resin component element forms with the mode that stator is covered; Partition forms flanged round-ended cylinder shape that roughly has; Have bottom, cylindrical part and lip part, when with cylindrical part axially on a side that disposes the bottom when being made as a side, resin component element is with the bottom and cylindrical part covers and the mode in the surface coverage of a side of lip part is formed; Dispose to peel off at the outer circumferential face of lip part and prevent to use groove, this is peeled off and prevents to prevent that with groove resin component element from peeling off from a wall member.
In the present invention, for example,, peel off and prevent with the axioversion of groove with respect to cylindrical part when when observing with the direction of the axial quadrature of cylindrical part.
In solving the pump-unit of the present invention of above-mentioned second technical problem, on the outer circumferential face of cylindrical part, be formed with to peel off and prevent to use groove, this is peeled off and prevents to prevent that with groove resin component element from peeling off from a wall member.Therefore, can be on the circumferencial direction of cylindrical part in a big way in form to peel off and prevent use groove, in addition, can also cylindrical part axially in a big way in formation peel off and prevent to use groove.Therefore, the direction of peeling off from a wall member towards resin component element when the peeling force of resin component element, be that the axial side of cylindrical part is done the time spent, can increase resin component element with respect to peeling off the hook amount that prevents with groove.Consequently, in the present invention, can improve resin component element is peeled off the restraint that suppresses from a wall member.
In the present invention, comparatively it is desirable to, peel off the axial quadrature that prevents with groove and cylindrical part.Particularly, peel off and prevent to be formed on the outer circumferential face of cylindrical part with the mode of axioversion more than 45 °,, be formed with a plurality of peeling off and prevent to use groove when when observing with the direction of the axial quadrature of cylindrical part with respect to cylindrical part with groove.When such formation, can prevent to bear the peeling force of resin component element that the direction of peeling off from a wall member towards resin component element is an axial side effect of cylindrical part effectively with peeling off with the side of groove.Therefore, can improve effectively resin component element is peeled off the restraint that suppresses from a wall member.
In the present invention, comparatively it is desirable to, stator comprises that driving is with coil and stator core; Wherein, In stator core, be formed with a plurality of prominent utmost point portion, in this a plurality of prominent utmost point portion, be wound with to drive and use coil, on the outer circumferential face of cylindrical part, be formed with a plurality of rotations and prevent to use groove with the parallel to an axis ground of cylindrical part; These a plurality of rotations prevent to be used to prevent that with groove stator core is with respect to a wall member rotation; In rotation prevents with groove, dispose the forward end of prominent utmost point portion, peel off and prevent to be formed at protuberance with groove, this protuberance is disposed at a plurality of rotations and prevents with between the groove.In this case, comparatively it is desirable to, peel off and prevent on the circumferencial direction of cylindrical part, to be formed in the whole zone of protuberance, peel off the two ends that prevent with groove and prevent to be communicated with groove with rotation with groove.Comparatively it is desirable to, peel off the groove that prevents to become the chamfered groove shape that two ends and rotation prevent to be communicated with groove with flute profile.When such formation; Can just so utilize and be disposed at a plurality of rotations and prevent to form to peel off to prevent to use groove with the protuberance between the groove; In addition, form under the situation of resin component element through carrying out injection moulding on the wall member between after fixing stator, when carrying out injection moulding; Make resin material prevent with groove circuitously to prevent with in the groove easily, and the resin material entering is peeled off prevent to use groove to peeling off via rotation.Therefore; When the peeling force of resin component element during towards resin component element from directive effect that a wall member is peeled off; Can further increase resin component element with respect to peeling off the hook amount that prevents with groove, resin component element peeled off the restraint that suppresses from a wall member thereby can improve effectively.
As stated, in solving the pump-unit of the present invention of above-mentioned first technical problem, can prevent effectively that fluid immerses by the stator of resin component element covering etc.
In addition, in the pump-unit of the present invention that solves above-mentioned second technical problem, can improve resin component element is peeled off the restraint that suppresses from a wall member.
Description of drawings
Fig. 1 is the sectional view of the pump-unit of embodiment of the present invention.
Fig. 2 is the worm's eye view that stator shown in Figure 1 is fixed in the state of a wall member.
Fig. 3 from lower face side be illustrated in shown in Figure 1 between wall member be fixed with the stereogram of peeling off the state that prevents member.
Fig. 4 is illustrated in and is fixed with the side view of peeling off the state that prevents member on the wall member between shown in Figure 1.
Fig. 5 representes wall member between shown in Figure 3 and peels off the exploded perspective view that prevents the state after member decomposes.
(symbol description)
1 pump-unit
2 impellers
4 rotors
5 stators
9 pump chambers
11 wall members
The 11a partition
The 11b cylindrical part
The 11c bottom
The 11d lip part
The 11g rotation prevents to use groove
The 11h protuberance
11j peels off and prevents to use groove
11m peels off and prevents to use projection
12 resin component elements
Coil is used in 23 drivings
24 stator cores
The 24b utmost point portion of dashing forward
31 peel off the portion of preventing
32 peel off and prevent member
The S gap
Embodiment
Below, with reference to accompanying drawing mode of execution of the present invention is described.
(schematic construction of pump-unit)
Fig. 1 is the sectional view of the pump-unit 1 of embodiment of the present invention.Fig. 2 is the worm's eye view that stator 5 shown in Figure 1 is fixed in the state of a wall member 11.In following explanation, the upside (Z1 direction side) of Fig. 1 is made as " on " side, the downside (Z2 direction side) of Fig. 1 is made as the D score side.
The pump-unit 1 of this mode of execution is the pump that is called as the canned pump formula, comprises impeller 2 and the DC Brushless Motor 3 that makes these impeller 2 rotations (below be called " motor 3 ").Motor 3 is made up of rotor 4 and stator 5.Impeller 2 and motor 3 are disposed at the inside of the housing that is made up of shell 6 and upper shell 7 that the top of shell 6 is covered.Shell 6 is fixed to one another by screw 8 with upper shell 7.
On upper shell 7, be formed with the 7a of suction portion of fluid and the 7b of discharge portion of fluid.Between shell 6 and upper shell 7, be formed with pump chamber 9, the fluid that sucks from the 7a of suction portion flows towards the 7b of discharge portion through pump chamber 9.In addition, the anastomosis part between shell 6 and upper shell 7 disposes the sealing component (O shape ring) 10 of the sealing that is used to guarantee pump chamber 9.
Shell 6 comprises a wall member 11 and resinous resin component element 12; Wherein, Above-mentioned wall member 11 has partition 11a, and this partition 11a is disposed between pump chamber 9 and the stator 5 with the mode that pump chamber 9 and stator 5 are separated, above-mentioned resin component element 12 will between the lower surface and the side of wall member 11 cover.Detailed structure to shell 6 describes below.
Stator 5 comprises driving with coil 23, stator core 24 and bobbin 25, and integral body forms roughly cylindric.Stator 5 across after state the outer circumferential side that partition 11a is disposed at rotor 4.Below, with radially being made as of rotor 4 and stator 5 " radially ", the circumferencial direction of rotor 4 and stator 5 is made as " circumferencial direction ".
Drive the outer circumferential face that is wound in bobbin 25 with coil 23.The two end part that drive with coil 23 are wound in terminal pins 26, and this terminal pins 26 is fixed in the lip part of bobbin 25b.Be wound with the bobbin 25 that drives with coil 23 and insert the prominent 24b of utmost point portion, thereby be fixed in stator core 24 from radially inner side.That is, on the prominent 24b of utmost point portion, be wound with driving with coil 23 across bobbin 25.
(structure of shell)
Fig. 3 from lower face side be illustrated in shown in Figure 1 between wall member 11 be fixed with the stereogram of peeling off the state that prevents member 32.Fig. 4 is illustrated in and is fixed with the side view of peeling off the state that prevents member 32 on the wall member 11 between shown in Figure 1.Fig. 5 representes wall member between shown in Figure 3 11 and peels off the exploded perspective view that prevents the state after member 32 decomposes.
As stated, a wall member 11 comprises partition 11a.Partition 11a forms flanged round-ended cylinder shape that roughly has, and comprises cylindrical part 11b, bottom 11c and lip part 11d.Cylindrical part 11b forms cylindric, and is configured to the outer circumferential face that drives with magnet 14 is covered.In addition, cylindrical part 11b is configured to that it is axially roughly consistent with above-below direction.Bottom 11c form with the lower end of cylindrical part 11b stop up discoideus.Lip part 11d enlarges from the upper end portion court outside radially as the opening side end of cylindrical part 11b.As shown in Figure 1, the inboard of partition 11a and upside are pump chamber 9, and impeller 2 and rotor 4 are disposed at inboard and the upside of partition 11a.Partition 11a has played the function that the fluid that prevents in the pump chamber 9 flows into the configuration position of stator 5.
As shown in Figure 1, the downside of 11c is fixed with two substrates 27,28 with the empty along the vertical direction state of opening specified gap in the bottom.In the bottom lower surface of 11c be formed be used for substrate 27 be fixed in a wall member 11 fixing with projection 11e be used for projection 11f is used in the location that substrate 27 positions.As shown in Figure 1, substrate 27 is threaded into the lower face side that fixing screw 29 with projection 11e is fixed on bottom 11c under being fixed with projection 11e and the location state with projection 11f location.In addition, substrate 28 under the state that is fixed after locating with projection 11f with the location with projection 11e through the bonding lower surface that is fixed in base plate 11c.
Be formed with a plurality of rotations at the outer circumferential face of cylindrical part 11b and prevent to use groove 11g, these a plurality of rotations prevent to be used to prevent that with groove 11g stator core 24 is with respect to a wall member 11 rotations.Rotation prevents to form abreast with groove 11g and above-below direction.In addition, rotation prevents to form the chamfered groove shape with groove 11g, and on above-below direction, is formed in the roughly whole zone except the part of upper end side of cylindrical part 11.In addition, a plurality of rotations prevent to form with the equal angles spacing with groove 11g.As shown in Figure 2,, rotation disposes the forward end of the prominent 24b of utmost point portion in preventing with groove 11g, and this prominent utmost point 24b of portion is disposed at the radially inner side of stator core 24.Prevent to use groove 11g owing to the outer circumferential face in cylindrical part 11 is formed with rotation, therefore between a plurality of rotations prevent with groove 11g, be formed with protuberance 11h.As shown in Figure 2, between the outer circumferential face of the lip part 25a that is disposed at radially inner side of bobbin 25 and protuberance 11h, be formed with the gap.
Be formed with a plurality of peeling off at the outer circumferential face of protuberance 11h and prevent to use groove 11j, these are a plurality of peels off and prevents to prevent that with groove 11j resin component element 12 from peeling off from a wall member 11.Peel off and prevent to form the chamfered groove shape with groove 11j.In addition, when when observing, peel off and prevent to tilt with respect to above-below direction with groove 11j with the direction of above-below direction quadrature.In this mode of execution, peel off and prevent promptly to form in the horizontal direction with groove 11j and above-below direction quadrature roughly.Also can spiral-shaped groove be set continuously, prevent to use groove 11j thereby form with respect to peeling off of above-below direction inclination at each protuberance 11h.In addition, need to peel off and prevent to form to have to peel off to prevent the size that acts on groove 11j, but under the situation that a plurality of grooves are set on the above-below direction; Can adopt less chamfered groove; In addition, if the snap-latch surface that along continuous straight runs is formed forms greatlyyer, then can reduce the quantity of the groove on above-below direction.In this mode of execution, peel off and prevent on above-below direction, to form, and in the roughly whole zone except the part of upper end side of protuberance 11h, be formed with a plurality of peeling off and prevent to use groove 11j with constant spacing with groove 11j.In addition, peel off and prevent in a protuberance 11h, along the circumferential direction to be formed in the whole zone of protuberance 11h, peel off the two ends that prevent with groove 11j and prevent to be communicated with groove 11g with rotation with groove 11j.Lower end side at several protuberances 11h (in the example shown in Fig. 3 waits is three protuberance 11h) is formed with notch part 11k, and this notch part 11k is used to dispose the magnetic quantity transducer (omitting diagram) that the magnetic pole that is formed at drive permanent-magnet 14 outer circumferential faces is detected.
Downside at lip part 11d disposes the portion of preventing 31 of peeling off, and this is peeled off the portion of preventing 31 and is used to prevent that resin component element 12 from peeling off from a wall member 11.Peel off the portion of preventing 31 and prevented to prevent that member 32 from constituting with projection 11m with peeling off by a plurality of peeling off, wherein, above-mentioned a plurality of peeling off prevents to give prominence to down from the lower surface of lip part 11d with projection 11m, and above-mentioned peeling off prevents that member 32 is fixed in to peel off and prevent to use projection 11m.
Peel off and prevent with projection 11m through towards outstanding form as one and form with the level cylindric of lip part 11d, and be disposed at the lower surface of lip part 11d with 90 ° spacing roughly.This is peeled off and prevents to become the outside end face position more in the inner part that is positioned at than lip part 11d with protrusion-shaped, and is positioned at than is fixed in bobbin 25 position more in the outer part on the prominent utmost point 24b of portion of stator core 24.Peel off and prevent that member 32 from being to form planar and form a circular ring flat-plate.This size of peeling off the external diameter that prevents member 32 is set; Make this external diameter be in outside end face position more in the inner part than lip part 11d; And; This size of peeling off the internal diameter that prevents member 32 is set; Making this internal diameter be in than be fixed in bobbin 25 position more in the outer part on the prominent utmost point 24b of portion of stator core 24, specifically is the lip part 25a position more in the outer part that is in than peels off the outside of the bobbin 25 that prevents member 32 configuration sides, and this is peeled off and prevents that member 32 is fixed in the mode that surrounds cylindrical part 11b upper end side and peel off the lower end side that prevents with projection 11m.In addition, peel off and prevent that member 32 is fixed in the mode with lip part 11d almost parallel and peel off the lower end side that prevents with projection 11m, at lip part 11d and peel off and prevent to be formed with between the member 32 gap S.In this mode of execution, for example, peel off and prevent that member 32 is fixed in through thermal weld or ultrasonic welding and peel off the lower end side that prevents with projection 11m.Peel off and prevent that member 32 also can be fixed in through screw, binder etc. and peel off the lower end side that prevents with projection 11m.
The resin component element 12 of this mode of execution forms on the whole roughly has the round-ended cylinder shape, and stator 5 and substrate 27,28 are covered fully.In addition, resin component element 12 covers cylindrical part 11b and bottom 11c fully, and covers the lower surface of lip part 11.At this moment; Owing to peel off and prevent to be positioned at outside end face position more in the inner part than lip part 11d with projection; And the size of peeling off the external diameter that prevents member 32 set; Make this external diameter be in outside end face position more in the inner part, therefore peel off and prevent that member 32 from being covered by resin component element 12 fully than lip part 11d.The part of resin component element 12 is filled in lip part 11d and peels off among the gap S that prevents between the member 32, and the part of resin component element 12 is disposed among the S of gap.In addition, when resin component element 12 was carried out injection moulding, resin material travelled back across in the gap between the outer circumferential face of lip part 25a and protuberance 11h of inboard of bobbin 25, and also got into to peel off and prevent with among the groove 11j.That is, the part of resin component element 12 also is disposed at the gap between the outer circumferential face of lip part 25a and protuberance 11h of inboard of bobbin 25 and peels off and prevents with among the groove 11j.As shown in Figure 1, in this mode of execution, the interface between lip part 11d and the resin component element 12 exposes at the outer circumferential face of pump-unit 1.
(the main effect of this mode of execution)
As stated; In this mode of execution; Downside at lip part 11d disposes the portion of preventing 31 of peeling off; This is peeled off the portion of preventing 31 and is used to prevent that resin component element 12 from peeling off from a wall member 11, peels off the part that peeling off of the portion of preventing 31 prevents to dispose in the formed gap between member 32 and the lip part 11d resin component element 12 in formation.Therefore, in this mode of execution, be disposed at peeling off of lip part 11d downside and prevent that member 32 is as preventing that resin component element 12 from working from the anchor log that lip part 11d peels off.Therefore, in this mode of execution, can utilize and peel off the portion of preventing 31 and prevent that effectively resin component element 12 from peeling off from the lower surface of lip part 11d.Consequently, in this mode of execution,, can prevent effectively that also fluid immerses the stator 5 and substrate 27,28 that is covered by resin component element 12 even if the interface between lip part 11d and the resin component element 12 exposes at the outer circumferential face of pump-unit 1.
In this mode of execution, owing to be formed with resin component element 12 with the mode of complete covered substrate 27,28, so substrate 27,28 has also played the function that prevents that resin component element 12 from peeling off from a wall member 11.
In this mode of execution, peel off that to prevent that member 32 from forming circular, and be fixed in a plurality of peeling off with the mode that surrounds cylindrical part 11b and prevent to use projection 11m.Therefore, for example, with a plurality of peel off prevent to peel off with among the projection 11m each be fixed with respectively on preventing with projection 11m one peel off prevent member situation relatively, when assemble pump device 1, peel off and prevent that member 32 from handling easily.In addition, can cut down the number of spare parts of pump-unit 1.
In addition, in this mode of execution, be formed with a plurality of peeling off at the outer circumferential face of protuberance 11h and prevent to use groove 11j.Particularly, peel off and prevent on above-below direction, to be formed in the roughly whole zone except the part of upper end side of protuberance 11h, and be formed in a circumferential direction in the whole zone of protuberance 11h with groove 11j.In addition, peeling off a part that disposes resin component element 12 in preventing with groove 11j.Therefore, in this mode of execution, promptly do the time spent in the below, can increase resin component element 12 with respect to peeling off the hook amount that prevents with groove 11j when the direction that the peeling force of resin component element 12 is peeled off towards resin component element 12 from a wall member 11.Therefore, in this mode of execution, can improve resin component element 12 is peeled off the restraint that suppresses from a wall member 11.
Especially in this mode of execution; Prevent to form and above-below direction quadrature roughly owing to peel off with groove 11j, therefore can be with peeling off the peeling force that prevent to bear effectively the resin component element 12 that the direction peeled off towards resin component element 12 from a wall member 11 acts on promptly with the side of groove 11j.Therefore, in this mode of execution, can improve effectively resin component element 12 is peeled off the restraint that suppresses from a wall member 11.
In addition, in this mode of execution, peel off and prevent to be formed in a circumferential direction in the whole zone of protuberance 11h, peel off the two ends that prevent with groove 11j and prevent to be communicated with groove 11g with rotation with groove 11j.Therefore, when resin component element 12 was carried out injection moulding, resin material prevented to rotate to peel off with groove 11g to prevent with among the groove 11j via rotation easily, thereby resin material gets into to peel off easily and prevents with among the groove 11g.Therefore; In this mode of execution; When the direction that the peeling force of resin component element 12 is peeled off towards resin component element 12 from a wall member 11 is promptly done the time spent in the below; Can further increase resin component element 12 with respect to peeling off the hook amount that prevents with groove 11j, consequently, can improve effectively resin component element 12 is peeled off the restraint that suppresses from a wall member 11.
(other mode of execution)
Above-mentioned mode of execution is the example in the preferred implementation of the present invention, but the present invention is not limited thereto, and can in the scope that does not change technological thought of the present invention, carry out various distortion and implement.
In the above-described embodiment, peel off and prevent that member 32 is fixed in to peel off and prevent to use projection 11m.In addition, for example, circular peeling off prevent member 32 also can with peel off prevent with projection 11m integrally formed.That is, peel off prevent member 32 also can and a wall member 11 integrally formed.
In the above-described embodiment, peel off that to prevent that member 32 from forming circular, and be fixed in a plurality of peeling off with the mode that surrounds cylindrical part 11b and prevent to use projection 11m.That is, in the above-described embodiment, peel off the portion of preventing 31 and comprise peeling off for one and prevent member 32.In addition, for example, peel off the portion of preventing 31 and both can adopt the structure that a ring flat-plate is cut apart, can comprise that also a plurality of the peeling off of the plate that uses the polylith rectilinear form prevents member.
In this case, also can make to peel off to prevent with the quantity of projection 11m, and peel off on preventing with projection 11m fixing respectively one at each and peel off and prevent member with to peel off the quantity that prevents member identical.In addition, also can circular spacers be peeled off to prevent to go up with projection 11m in each and prevent member as peeling off.In addition, also can make to peel off to prevent with the quantity of projection 11m, and peel off at each and to be formed with one on preventing with projection 11m and to peel off and prevent member with to peel off the quantity that prevents member identical.In this case, for example, utilize to peel off to prevent to prevent that with peeling off member from forming mushroom jut with projection 11m.
In addition; Comprise a plurality of peeling off under the situation that prevents member peeling off the portion of preventing 31; Also can be to peel off the quantity that prevents member to lack than peeling off the quantity that prevents with projection 11m, several peel off on preventing with projection 11m fixing or integrally formed one peel off and prevent member.
In addition, in the above-described embodiment, peel off and prevent to form and above-below direction quadrature roughly, prevent also can form as stated when tilting with respect to above-below direction when observing with the direction of above-below direction quadrature with groove 11j but peel off with groove 11j.For example, prevent to tilt more than 45 ° with respect to above-below direction, then can make to peel off to prevent that having enough peeling off with groove 11j prevents to act on groove 11j if peel off when observing with the direction of above-below direction quadrature.In addition; In the above-described embodiment, peel off and prevent to form the rectangular chamfered groove shape in cross section, but forming a plurality of peeling off under the situation about preventing on the above-below direction with groove 11j with groove 11j; Even adopt the cross section groove triangular in shape or the groove of cross section semicircular in shape, also can have the effect of preventing of peeling off.
In the above-described embodiment, peel off and prevent to be formed in a circumferential direction in the whole zone of protuberance 11h, peel off the two ends that prevent with groove 11j and prevent to be communicated with groove 11g with rotation with groove 11j.In addition, for example, peel off and prevent also can be formed in a circumferential direction on the part of protuberance 11h with groove 11j.In this case, also can only make and peel off an end that prevents with groove 11j and prevent to be communicated with, and make and peel off the other end that prevents with groove 11j and prevent not to be communicated with groove 11g with rotation with groove 11g with rotation.In addition, in this case, also can make and peel off the two ends that prevent with groove 11j and all prevent not to be communicated with groove 11g with rotation.
In the above-described embodiment, peel off and prevent on above-below direction, to be formed in the roughly whole zone except the part of upper end side of protuberance 11h with groove 11j.In addition, for example, peel off and prevent both can on above-below direction, be formed in the whole zone of protuberance 11h with groove 11j, also can be on a part that is formed on protuberance 11h on the above-below direction.In addition, in the above-described embodiment, peel off and prevent on above-below direction, to form, prevent with the interval of groove 11j on above-below direction it also can is irregular but peel off with constant spacing with groove 11j.
In the above-described embodiment, on protuberance 11h, be formed with a plurality of peeling off and prevent to use groove 11j, but if be provided with to peel off and prevent member 32, then also can on protuberance 11h, not form to peel off and prevent to use groove 11j.Even in this case, also can peel off the stator 5 and substrate 27,28 that prevents that the anti-effectively fluid immersion of member 32 from being covered by resin component element 12 through setting.
In the above-described embodiment, dispose the portion of preventing 31 of peeling off, but, then also can not dispose the portion of preventing 31 of peeling off at the downside of lip part 11d if on protuberance 11h, being formed with a plurality of peeling off prevents to use groove 11j at the downside of lip part 11d.Even if in this case, also can improve resin component element 12 is peeled off the restraint that suppresses from a wall member 11.
Claims (18)
1. a pump-unit is characterized in that, comprising:
Impeller;
Rotor is installed said impeller on this rotor;
Stator, this stator arrangement is in the outer circumferential side of said rotor;
Pump chamber in this pump chamber, dispose said impeller and said rotor, and fluid flows through this pump chamber;
Between wall member, this wall member has partition, this partition is disposed between said stator and the said pump chamber to prevent that the fluid in the said pump chamber from flowing into the configuration position of said stator; And
Resinous resin component element, this resin component element forms with the mode that said stator is covered,
Said partition forms flanged round-ended cylinder shape that roughly has, and has bottom, cylindrical part and lip part,
Said lip part forms with the mode that enlarges towards the radial outside of said cylindrical part from the opening side end of said cylindrical part,
When with said cylindrical part axially on a side that disposes said bottom when being made as a side,
Said resin component element to be covering said bottom and said cylindrical part and the mode in the surface coverage of a said side of said lip part is formed,
Said side at said lip part disposes the portion of preventing of peeling off, and this is peeled off the portion of preventing and said resin component element from peeling off from said wall member.
2. pump-unit as claimed in claim 1 is characterized in that,
The said portion of preventing of peeling off comprises: prevent to use projection from said lip part towards said one side-prominent peeling off; And form or be fixed in said peeling off and prevent to prevent member with peeling off of projection,
Prevent to be formed with between the member gap at said lip part and said peeling off,
In said gap, dispose the part of said resin component element.
3. pump-unit as claimed in claim 2 is characterized in that,
The said portion of preventing of peeling off comprises that a plurality of said peeling off prevent to use projection,
Saidly peel off that to prevent that member from forming circular, and be fixed in a plurality of said peeling off with the mode that said cylindrical part is surrounded and prevent to use projection.
4. pump-unit as claimed in claim 3 is characterized in that,
Said stator has stator core, in this stator core, is formed with a plurality of prominent utmost point portion, and in this a plurality of prominent utmost point portion, be wound with to drive and use coil across bobbin,
Said peeling off prevents that member from being to form a circular ring flat-plate; Size to the external diameter of this ring flat-plate is set; Make this external diameter be in outside end face position more in the inner part than said lip part; And, the size of the internal diameter of this ring flat-plate is set, make this internal diameter be in than be fixed in the said bobbin position more in the outer part in the said a plurality of prominent utmost point portion of said stator core.
5. pump-unit as claimed in claim 3 is characterized in that,
Said stator has stator core, in this stator core, is formed with a plurality of prominent utmost point portion, and in this a plurality of prominent utmost point portion, be wound with to drive and use coil across bobbin,
Said peeling off prevents to become the outside end face position more in the inner part that is positioned at than said lip part with protrusion-shaped, and is positioned at than is fixed in the said bobbin position more in the outer part in the said a plurality of prominent utmost point portion of said stator core.
6. pump-unit as claimed in claim 5 is characterized in that,
Said peel off prevent with projection be with said lip part integrally formed and from said lip part towards said one side-prominent projection,
Said peeling off prevents that member is fixed in said peeling off through thermal weld or ultrasonic welding and prevents to use projection.
7. pump-unit as claimed in claim 2 is characterized in that,
The said portion of preventing of peeling off comprises that a plurality of said peeling off prevent to prevent member with projection and a plurality of said peeling off.
8. pump-unit as claimed in claim 7 is characterized in that,
Said peeling off prevents that member from being board member,
Said stator has stator core, in this stator core, is formed with a plurality of prominent utmost point portion, and in this a plurality of prominent utmost point portion, be wound with to drive and use coil across bobbin,
Said peeling off prevents to become the outside end face position more in the inner part that is positioned at than said lip part with protrusion-shaped, and is positioned at than is fixed in the said bobbin position more in the outer part in the said a plurality of prominent utmost point portion of said stator core.
9. pump-unit as claimed in claim 8 is characterized in that,
Said peel off prevent with projection be with said lip part integrally formed and from said lip part towards said one side-prominent projection,
Said peeling off prevents that member is fixed in said peeling off through thermal weld or ultrasonic welding and prevents to use projection.
10. like each described pump-unit in the claim 1 to 9, it is characterized in that,
Said resin component element is to be in said wall member of the state that is fixed with said stator and this hardening of resin is formed through resin material is injected.
11. a pump-unit is characterized in that, comprising:
Impeller;
Rotor is installed said impeller on this rotor;
Stator, this stator arrangement is in the outer circumferential side of said rotor;
Pump chamber in this pump chamber, dispose said impeller and said rotor, and fluid flows through this pump chamber;
Between wall member, this wall member has partition, this partition is disposed between said stator and the said pump chamber to prevent that the fluid in the said pump chamber from flowing into the configuration position of said stator; And
Resinous resin component element, this resin component element forms with the mode that said stator is covered,
Said partition forms flanged round-ended cylinder shape that roughly has, and has bottom, cylindrical part and lip part,
When with said cylindrical part axially on a side that disposes said bottom when being made as a side,
Said resin component element to be covering said bottom and said cylindrical part and the mode in the surface coverage of a said side of said lip part is formed,
On the outer circumferential face of said cylindrical part, dispose to peel off and prevent to use groove, this is peeled off and prevents to prevent that with groove said resin component element from peeling off from said wall member.
12. pump-unit as claimed in claim 11 is characterized in that,
When observing with the direction of the axial quadrature of said cylindrical part, said peeling off prevents with the axioversion of groove with respect to said cylindrical part.
13. pump-unit as claimed in claim 12 is characterized in that,
The said axial quadrature that prevents with groove and said cylindrical part of peeling off.
14. pump-unit as claimed in claim 12 is characterized in that,
Said peeling off prevents to be formed on the outer circumferential face of said cylindrical part with the mode of axioversion more than 45 ° with respect to said cylindrical part with groove, when when observing with the direction of the axial quadrature of said cylindrical part, is formed with a plurality of said peeling off and prevents to use groove.
15. like the said pump-unit of claim 11, it is characterized in that,
Said stator comprises and driving with coil and stator core, wherein, in said stator core, is formed with a plurality of prominent utmost point portion, in this a plurality of prominent utmost point portion, be wound with said driving and use coil,
On the outer circumferential face of said cylindrical part, be formed with a plurality of rotations with the parallel to an axis ground of said cylindrical part and prevent to use groove, these a plurality of rotations prevent to be used to prevent that with groove said stator core from rotating with respect to said wall member,
, said rotation disposes the forward end of said prominent utmost point portion in preventing with groove,
Said peeling off prevents to be formed at protuberance with groove, and this protuberance is disposed at a plurality of said rotations and prevents with between the groove.
16. pump-unit as claimed in claim 15 is characterized in that,
Said peeling off prevents on the circumferencial direction of said cylindrical part, to be formed in the whole zone of said protuberance with groove, and the said two ends that prevent with groove of peeling off prevent to be communicated with groove with said rotation.
17. pump-unit as claimed in claim 15 is characterized in that,
The said groove that prevents with the groove chamfered groove shape that to be two ends prevent to be communicated with groove with said rotation of peeling off.
18. like each described pump-unit in the claim 11 to 17, it is characterized in that,
Said resin component element is to be in said wall member of the state that is fixed with said stator and this hardening of resin is formed through resin material is injected.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-241715 | 2010-10-28 | ||
| JP2010241714A JP5641874B2 (en) | 2010-10-28 | 2010-10-28 | Pump device |
| JP2010241715A JP5663265B2 (en) | 2010-10-28 | 2010-10-28 | Pump device |
| JP2010-241714 | 2010-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102465887A true CN102465887A (en) | 2012-05-23 |
| CN102465887B CN102465887B (en) | 2016-05-18 |
Family
ID=46069891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110321428.2A Expired - Fee Related CN102465887B (en) | 2010-10-28 | 2011-10-12 | Pump installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102465887B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867484A (en) * | 2012-12-18 | 2014-06-18 | 日本电产三协株式会社 | Pump unit |
| CN113939656A (en) * | 2019-06-11 | 2022-01-14 | 海拉有限双合股份公司 | Pump, in particular for a liquid circuit in a vehicle, having an improved impeller support |
| CN114060286A (en) * | 2020-08-07 | 2022-02-18 | 日立安斯泰莫株式会社 | Two-stage centrifugal pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859008A (en) * | 1971-07-06 | 1975-01-07 | Andritz Ag Maschf | Pump with offset inflow and discharge chambers |
| CN2711418Y (en) * | 2004-07-05 | 2005-07-20 | 薛肇江 | Electric fuel combustion double-groove vane pump |
| JP2008075462A (en) * | 2006-09-19 | 2008-04-03 | Matsushita Electric Works Ltd | Pump |
| JP2009074468A (en) * | 2007-09-21 | 2009-04-09 | Panasonic Electric Works Co Ltd | pump |
| CN101619724A (en) * | 2008-06-30 | 2010-01-06 | 日本电产三协株式会社 | Pump apparatus |
-
2011
- 2011-10-12 CN CN201110321428.2A patent/CN102465887B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859008A (en) * | 1971-07-06 | 1975-01-07 | Andritz Ag Maschf | Pump with offset inflow and discharge chambers |
| CN2711418Y (en) * | 2004-07-05 | 2005-07-20 | 薛肇江 | Electric fuel combustion double-groove vane pump |
| JP2008075462A (en) * | 2006-09-19 | 2008-04-03 | Matsushita Electric Works Ltd | Pump |
| JP2009074468A (en) * | 2007-09-21 | 2009-04-09 | Panasonic Electric Works Co Ltd | pump |
| CN101619724A (en) * | 2008-06-30 | 2010-01-06 | 日本电产三协株式会社 | Pump apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867484A (en) * | 2012-12-18 | 2014-06-18 | 日本电产三协株式会社 | Pump unit |
| CN113939656A (en) * | 2019-06-11 | 2022-01-14 | 海拉有限双合股份公司 | Pump, in particular for a liquid circuit in a vehicle, having an improved impeller support |
| CN114060286A (en) * | 2020-08-07 | 2022-02-18 | 日立安斯泰莫株式会社 | Two-stage centrifugal pump |
| CN114060286B (en) * | 2020-08-07 | 2023-09-22 | 日立安斯泰莫株式会社 | Secondary centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102465887B (en) | 2016-05-18 |
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