CN105489344B - Pulse transformer and its manufacture method - Google Patents
Pulse transformer and its manufacture method Download PDFInfo
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- CN105489344B CN105489344B CN201610052675.XA CN201610052675A CN105489344B CN 105489344 B CN105489344 B CN 105489344B CN 201610052675 A CN201610052675 A CN 201610052675A CN 105489344 B CN105489344 B CN 105489344B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 30
- 238000004804 winding Methods 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims description 17
- 239000000696 magnetic material Substances 0.000 claims description 12
- 230000035699 permeability Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 9
- 230000001131 transforming effect Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 29
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000003466 welding Methods 0.000 description 10
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
- H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
- H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
- H01F2019/085—Transformer for galvanic isolation
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- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
A kind of pulse transformer, including the first mold core body, first mold core body has several electrodes, some coilings are around first mold core body and coiling, and connected with corresponding electrode and form multiple windings, the multiple winding respectively it is corresponding with corresponding PCB pads progress wiring connection, by and PCB pads combination, so as to power transformer product characteristic；Wherein, a part of winding in multiple windings is attached with corresponding PCB pads and forms armature winding, and another part winding in multiple windings is attached with corresponding PCB pads and forms secondary windings.A kind of corresponding pulse transformer preparation method is also disclosed herein.The pulse transformer is simple to manufacture, and is avoiding lead from intersecting, and prevents pressure-resistant bad etc. thering is significant advantage.
Description
Technical field
It is more particularly to a kind of using PCB (Printed the present invention relates to a kind of pulse transformer and its manufacture method
Circuit Board) connect up the surface installing type pulse transformer for realizing function.
Background technology
It is growing day by day with the network coverage, gradually start the terminal device innovation tide that Internet technology is led.Arteries and veins
Rush transformer (Pulse transformer), also known as network isolation transformer, or data mercury, the key as network interface
Part, thus be widely used in the equipment such as the network switch, router, network interface card, hub.In transponder chip and network
Between interface, pulse transformer primarily serves the effects such as signal coupling, high_voltage isolation, impedance matching, electromagnetic interference suppression.
At present, traditional pulse transformer has the characteristics of low magnetism leakage, high coupling, high RST bandwidth, but due to traditional
Pulse transformer often greatly limit its automation process, produces using magnet ring as mold core body, the structure of itself closure
Product size be also difficult to miniaturization, it is lightening.New surface-mounted pulse transformer then uses automatic winding technique system
Make, realize automate while, also compacted with physical dimension, the characteristics of coupling is higher, but because spiral mode is complicated,
And lead crossover phenomenon during hanging wire be present, the risk compared with high withstand voltage bad characteristic be present in product.
Therefore, the structure of novel pulse transformer how is improved, manufactures it simpler, is had preferably electrically
Can, further reduce lead and intersect and cause short-circuit, pressure-resistant bad risk to be those skilled in the art's technology urgently to be resolved hurrily
Problem.
Patent document：Publication number US2010109827A1
Patent document：Publication number CN201410498079.5
The content of the invention
It is a primary object of the present invention to overcome the deficiencies in the prior art, there is provided it is a kind of be simple to manufacture, highly reliable arteries and veins
Rush transformer and preparation method thereof.
To achieve the above object, the present invention uses following technical scheme：
A kind of pulse transformer, including the first mold core body, first mold core body have several electrodes, it is some around
Line connects with corresponding electrode around first mold core body and coiling and forms multiple windings, the multiple around component
Wiring connection not corresponding with corresponding PCB pads progress, by and PCB pads combination, so as to power transformer product
Characteristic；Wherein, a part of winding in multiple windings is attached with corresponding PCB pads and forms armature winding, it is multiple around
Another part winding in group is attached with corresponding PCB pads and forms secondary windings.
Further：
First mold core body has first boss, second boss and center pillar, and the coiling is wrapped on the center pillar,
A part of electrode in several described electrodes is arranged in the first boss, another part electricity in several described electrodes
Pole is arranged in the second boss, and each electrode in the first boss passes through in a coiling and the second boss
Electrode connects correspondingly, and the coiling is after the electrode in the first boss is drawn, from the first side of the center pillar
Start to wind, then terminate to wind from the second side relative with the first side of the center pillar, be then attached to described
Electrode on two boss.
There is first electrode, second electrode, the 3rd electrode and the 4th electrode in the first boss, have in second boss
There are the 5th electrode, the 6th electrode, the 7th electrode and the 8th electrode, wherein, the first electrode is relative with the 8th electrode
Set, the second electrode is oppositely arranged with the 7th electrode, and the 3rd electrode is oppositely arranged with the 6th electrode, institute
The 4th electrode is stated to be oppositely arranged with the 5th electrode；Wherein described coiling include the first coiling, the second coiling, the 3rd coiling and
4th coiling, wherein the top and end of first coiling are connected with the first electrode, the 7th electrode respectively, described second
The top and end of coiling are connected with the second electrode, the 8th electrode respectively, the top of the 3rd coiling and end difference
Be connected with the 3rd electrode, the 5th electrode, the top and end of the 4th coiling respectively with the 4th electrode, the 6th electricity
Pole connects；The input of wherein described first electrode, the 8th electrode as the pulse transformer, the 4th electrode,
Output end of 5th electrode as the pulse transformer, or, wherein the first electrode, the 8th electrode conduct
The output end of the pulse transformer, the 4th electrode, input of the 5th electrode as the pulse transformer.
There is first electrode, second electrode, the 3rd electrode and the 4th electrode in the first boss, have in second boss
There are the 5th electrode, the 6th electrode, the 7th electrode and the 8th electrode, wherein, the first electrode is relative with the 8th electrode
Set, the second electrode is oppositely arranged with the 7th electrode, and the 3rd electrode is oppositely arranged with the 6th electrode, institute
The 4th electrode is stated to be oppositely arranged with the 5th electrode；Wherein described coiling include the first coiling, the second coiling, the 3rd coiling and
4th coiling, wherein the top and end of first coiling are connected with the first electrode, the 8th electrode respectively, described second
The top and end of coiling are connected with the second electrode, the 7th electrode respectively, the top of the 3rd coiling and end difference
Be connected with the 3rd electrode, the 6th electrode, the top and end of the 4th coiling respectively with the 4th electrode, the 5th electricity
Pole connects；The input of wherein described first electrode, the 7th electrode as the pulse transformer, the 3rd electrode,
Output end of 5th electrode as the pulse transformer, or, wherein the first electrode, the 7th electrode conduct
The output end of the pulse transformer, the 3rd electrode, input of the 5th electrode as the pulse transformer.
There is first electrode, second electrode, the 3rd electrode and the 4th electrode in the first boss, have in second boss
There are the 5th electrode, the 6th electrode, the 7th electrode and the 8th electrode, wherein, the first electrode is relative with the 8th electrode
Set, the second electrode is oppositely arranged with the 7th electrode, and the 3rd electrode is oppositely arranged with the 6th electrode, institute
The 4th electrode is stated to be oppositely arranged with the 5th electrode；Wherein described coiling include the first coiling, the second coiling, the 3rd coiling and
4th coiling, wherein the top and end of first coiling are connected with the first electrode, the 6th electrode respectively, described second
The top and end of coiling are connected with the second electrode, the 5th electrode respectively, the top of the 3rd coiling and end difference
Be connected with the 3rd electrode, the 8th electrode, the top and end of the 4th coiling respectively with the 4th electrode, the 7th electricity
Pole connects；The input of wherein described first electrode, the 5th electrode as the pulse transformer, the 4th electrode,
Output end of 8th electrode as the pulse transformer, or, wherein the first electrode, the 5th electrode conduct
The output end of the pulse transformer, the 4th electrode, input of the 8th electrode as the pulse transformer.
First coiling, second coiling, the 3rd coiling and the 4th coiling coiling on the center pillar
Into four layers；Or first coiling and the 3rd coiling are one group and second coiling and the 4th coiling are another
One group, two groups of coilings turn to bilayer on the center pillar；Or first coiling and second coiling for one group institute
It is another group to state the 3rd coiling and the 4th coiling, and two groups of coilings turn to bilayer on the center pillar.
The pulse transformer also includes the second mold core body, and the material of second mold core body is permeability magnetic material, institute
The reverse side that the second mold core body is arranged on the side being arranged on PCB of the first mold core body is stated, is matched somebody with somebody with the first mold core body
Close and form closed magnetic circuit；Preferably, first mold core body of the pulse transformer includes main part and backing plate portion
Point, on the body portion, the main part is installed on PCB by the plate portion for some coiling coilings,
Have on the plate portion and correspond the electrode electrically connected with the electrode of the main part, the electricity on the plate portion
Pole connects one to one with PCB pads.
First mold core body and the second mold core body contain permeability magnetic material, preferably Ferrite Material, more preferably nickel zinc
Ferrite Material；Preferably, the first mold core body is the combined material of permeability magnetic material and ceramic material, plastics or composite.
A kind of manufacture method of pulse transformer, the arteries and veins formed according to the structure combination PCB layout of the pulse transformer
Rush transformer, wherein, by some coilings around first mold core body carry out coiling, and with it is right in first mold core body
The electrode answered is attached, and forms multiple windings, wiring corresponding with corresponding PCB pads progress connects the multiple winding respectively
Connect, by and PCB pads combination, so as to power transformer product characteristic；Wherein, a part of winding in multiple windings with
Corresponding PCB pads are attached and form armature winding, and another part winding in multiple windings enters with corresponding PCB pads
Row connects and forms secondary windings.
When making the pulse transformer, first coiling, second coiling, the 3rd coiling and the described 4th
Coiling turns to four layers on the center pillar in four times；Or first coiling and the 3rd coiling are one group and described
Second coiling and the 4th coiling are another group, and two groups of coilings turn to bilayer on the center pillar at twice or simultaneously；Or
Person, first coiling and second coiling are one group and the 3rd coiling and the 4th coiling are another group, two groups
Coiling turns to bilayer on the center pillar at twice or simultaneously.
Beneficial effects of the present invention：
A kind of pulse transformer provided by the invention and its manufacture method, its winding mode is simple, and using PCB layout with
Combined around product and make it have transformer characteristic, reduce in the prior art because lead halved belt come it is short-circuit, pressure-resistant bad etc.
Risk.Compared with the prior art, pulse transformer of the invention manufactures simpler, and is avoiding lead from intersecting, and prevents resistance to
Pressing bad etc. has significant advantage.
Brief description of the drawings
Fig. 1-1 is the structural representation before the non-coiling of pulse transformer of an embodiment of the present invention；
Fig. 1-2 is the structural representation before the non-coiling of pulse transformer of another embodiment of the present invention；
Fig. 1-3 is the plate portion front surface A signal of the core body of pulse transformer first of another embodiment of the present invention
Figure；
Fig. 1-4 is the plate portion back surface B signal of the first core of pulse transformer part of another embodiment of the present invention
Figure；
Fig. 2-1 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 1；
One of step schematic diagram in Fig. 2-2 embodiments 1 in the manufacture method of pulse transformer；
Fig. 2-3 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 1；
Fig. 2-4 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 1；
Fig. 2-5 is the schematic diagram of the pulse transformer of embodiment 1；
Fig. 2-6 is the pad layout schematic diagram of pulse transformer in embodiment 1；
Fig. 2-7 is the equivalent circuit diagram of pulse transformer in embodiment 1；
Fig. 2-8 is one of step schematic diagram in another manufacture method of pulse transformer in embodiment 1；
Fig. 2-9 is one of step schematic diagram in another manufacture method of pulse transformer in embodiment 1；
Fig. 3-1 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 2；
Fig. 3-2 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 2；
Fig. 3-3 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 2；
Fig. 3-4 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 2；
Fig. 3-5 is the schematic diagram of pulse transformer in embodiment 2；
Fig. 3-6 is the pad layout schematic diagram of pulse transformer in embodiment 2；
Fig. 3-7 is the equivalent circuit diagram of pulse transformer in embodiment 2；
Fig. 4-1 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 3；
Fig. 4-2 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 3；
Fig. 4-3 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 3；
Fig. 4-4 is one of step schematic diagram in the manufacture method of pulse transformer in embodiment 3；
Fig. 4-5 is the schematic diagram of the pulse transformer of embodiment 3；
Fig. 4-6 is the pad layout schematic diagram of the pulse transformer of embodiment 3；
Fig. 4-7 is the equivalent circuit diagram of the pulse transformer of embodiment 3.
Embodiment
Embodiments of the present invention are elaborated below.It is emphasized that what the description below was merely exemplary,
The scope being not intended to be limiting of the invention and its application.
Refering to Fig. 1-1 to Fig. 4-7, in one embodiment, a kind of pulse transformer, including the first mold core body B1,
There are one mold core body B1 several electrodes E1~E8, some coiling S1~S4 to surround the first mold core body B1 coilings, and with it is right
The electrode answered connects and forms multiple windings, multiple windings wiring connection corresponding with the progress of PCB pads 1~8 respectively, wherein respectively
Electrode E1~E8 is correspondingly connected on each PCB pads 1~8, by and PCB pads combination, so as to power transformer product
Characteristic；Wherein, a part of winding in multiple windings is attached with corresponding PCB pads and forms armature winding, it is multiple around
Another part winding in group is attached with corresponding PCB pads and forms secondary windings.
Refering to Fig. 1-1 to Fig. 4-7, in a preferred embodiment, the first mold core body B1 has first boss a, second convex
Platform b and center pillar c, coiling S1~S4 are wrapped on center pillar c, and a part of electrode E1~E4 in several electrodes E1~E8 is arranged on
On first boss a, another part electrode E5~E8 in several electrodes is arranged on second boss b, every on first boss a
Individual electrode E1~E4 is connected correspondingly by a coiling S1~S4 with electrode E5~E8 on second boss b, coiling S1
~S4 from first boss a electrode E1~E4 draw after, wound since center pillar c first side c1, then from center pillar c with
Second side c2 relative first side c1 terminates to wind, the electrode E5~E8 being then attached on second boss b.
Refering to Fig. 2-1 to Fig. 2-9, in a kind of preferred embodiment, there is first electrode E1, the on first boss a
Two electrode E2, the 3rd electrode E3 and the 4th electrode E4, there is the 5th electrode E5, the 6th electrode E6, the 7th electricity on second boss b
Pole E7 and the 8th electrode E8, wherein, first electrode E1 is oppositely arranged with the 8th electrode E8, second electrode E2 and the 7th electrode E7
It is oppositely arranged, the 3rd electrode E3 and the 6th electrode E6 is oppositely arranged, and the 4th electrode E4 and the 5th electrode E5 is oppositely arranged；Wherein around
Line includes the first coiling S1, the second coiling S2, the 3rd coiling S3 and the 4th coiling S4, wherein the first coiling S1 top S1a and
End S1b is connected with first electrode E1, the 7th electrode E7 respectively, and the second coiling S2 top S2a and end S2b are respectively with second
Electrode E2, the 8th electrode E8 connections, the 3rd coiling S3 top S3a and end S3b respectively with the 3rd electrode E3, the 5th electrode E5
Connection, the 4th coiling S4 top S4a and end S4b are connected with the 4th electrode E4, the 6th electrode E6 respectively；Wherein first electrode
The input of E1, the 8th electrode E8 as pulse transformer, the 4th electrode E4, outputs of the 5th electrode E5 as pulse transformer
End, or, the wherein output end of first electrode E1, the 8th electrode E8 as pulse transformer, the 4th electrode E4, the 5th electrode E5
Input as pulse transformer.
Refering to Fig. 3-1 to Fig. 3-7, in another preferred embodiment, it is with former embodiment difference,
Wherein the first coiling S1 top S1a and end S1b is connected with first electrode E1, the 8th electrode E8 respectively, the second coiling S2's
Top S2a and end S2b is connected with second electrode E2, the 7th electrode E7 respectively, the 3rd coiling S3 top S3a and end S3b
Be connected respectively with the 3rd electrode E3, the 6th electrode E6, the 4th coiling S4 top S4a and end S4b respectively with the 4th electrode E4,
5th electrode E5 connections；The wherein input of first electrode E1, the 7th electrode E7 as pulse transformer, the 3rd electrode E3,
Output ends of the five electrode E5 as pulse transformer, or, wherein first electrode E1, the 7th electrode E7 are as pulse transformer
Output end, the 3rd electrode E3, inputs of the 5th electrode E5 as pulse transformer.
Refering to Fig. 4-1 to Fig. 4-7, in another preferred embodiment, it is with former embodiment difference,
Wherein the first coiling S1 top S1a and end S1b is connected with first electrode E1, the 6th electrode E6 respectively, the second coiling S2's
Top S2a and end S2b is connected with second electrode E2, the 5th electrode E5 respectively, the 3rd coiling S3 top S3a and end S3b
Be connected respectively with the 3rd electrode E3, the 8th electrode E8, the 4th coiling S4 top S4a and end S4b respectively with the 4th electrode E4,
7th electrode E7 connections；The wherein input of first electrode E1, the 5th electrode E5 as pulse transformer, the 4th electrode E4,
Output ends of the eight electrode E8 as pulse transformer, or, wherein first electrode E1, the 5th electrode E5 are as pulse transformer
Output end, the 4th electrode E4, inputs of the 8th electrode E8 as pulse transformer.
In a preferred embodiment, the first coiling S1, the second coiling S2, the 3rd coiling S3 and the 4th coiling S4 are in center pillar c
On turn to four layers；Or as shown in Fig. 2-1 to Fig. 3-5, the first coiling S1 and the 3rd coiling S3 are one group and the second coiling S2
It it is another group with the 4th coiling S4, two groups of coilings turn to bilayer on center pillar c；Or as shown in Fig. 4-1 to Fig. 4-5, first
Coiling S1 and the second coiling S2 is one group and the 3rd coiling S3 and the 4th coiling S4 are another group, two groups of coilings on center pillar c around
Bilayer is made.
As shown in Figure 1-2, pulse transformer also includes the second mold core body B2, and the second mold core body B2 material is by magnetic conduction
Material is formed, and it uses cover plate form, the reverse side of the first mold core body B1 side being arranged on PCB is arranged on, with the
One mold core body B1 coordinates and forms closed magnetic circuit.
As shown in Fig. 1-2 to Fig. 1-4, in a preferred embodiment, the first mold core body B1 of pulse transformer includes master
Body portion B1 (a) and plate portion B1 (b), main part B1 (a) have first boss a, second boss b and center pillar c, main part
Divide B1 (a) to be installed to by plate portion B1 (b) on PCB, there is the electrode with main part B1 (a) on plate portion B1 (b)
E1~E8 corresponds electrode E1'~E8' and PCB pads 1~8 on the electrode E1'~E8', plate portion B1 (b) of electrical connection
Corresponding connection.
First mold core body B1 and the second mold core body B2 contain permeability magnetic material, and permeability magnetic material is, for example, Ferrite Material,
More preferably nickel-zinc-ferrite material.In addition, the first mold core body B1 can also be permeability magnetic material and ceramic material, plastics or multiple
The combined material of condensation material.
A kind of manufacture method of pulse transformer, combined according to the structure of the pulse transformer of any of the above-described kind of embodiment
PCB layout and the pulse transformer formed, wherein, some coilings are subjected to coiling around the first mold core body B1, and with first
Electrode corresponding on mold core body B1 is attached, and forms multiple windings, and multiple windings carry out phase with corresponding PCB pads respectively
Answer wiring connection, by and PCB pads combination, so as to power transformer product characteristic；Wherein, one in multiple windings
Part winding is attached with corresponding PCB pads and forms armature winding, another part winding in multiple windings with it is corresponding
PCB pads be attached and form secondary windings.
Refering to Fig. 1-1 to Fig. 4-7, in the manufacture method preferred embodiment, the pulse transforming of above-described embodiment is made
During device, the first coiling S1, the second coiling S2, the 3rd coiling S3 and the 4th coiling S4 turn to four layers on center pillar c in four times；Or
Person, as shown in Fig. 2-1 to Fig. 3-5, the first coiling S1 and the 3rd coiling S3 is one group and the second coiling S2 and the 4th coiling S4 are
Another group, two groups of coilings turn to bilayer on center pillar c at twice or simultaneously；Or as shown in Fig. 4-1 to Fig. 4-5, first around
Line S1 and the second coiling S2 is one group and the 3rd coiling S3 and the 4th coiling S4 are another group, and two groups of coilings are at twice in center pillar c
On turn to bilayer.
According to the above embodiments, there is provided one kind combines the pulse that PCB (Printed Circuit Board) wirings are formed
Transformer, some coilings that the pulse transformer may include at least two mold core bodies and be wrapped in the first mold core body,
It can be bonded between each mold core body by glue so as to form closed magnetic circuit.Some coilings around the first mold core body carry out around
System, and corresponding electrode is attached.Some coilings are divided into multiple windings, choose specific winding respectively in multiple windings
By its it is corresponding with corresponding PCB pads progress wiring connection, around product by and PCB pads combination, make it have transformation
The characteristic of device product.
Some coilings can be divided into multiple windings, and the winding mode for being configured to multiple windings can be combined with the PCB connected up
Form the electrical characteristic of transformer.PCB layout can determine according to the electrode position that the top of some coilings connects with end.More
A part of winding is chosen in individual winding, its corresponding PCB pad is attached with it, by combining to form primary with PCB
Winding；Another part winding is chosen, and its corresponding PCB pad is attached with it, by combining to form secondary with PCB
Winding, eventually through the combination around product and PCB pads, make it have transformer characteristic.
Wherein, the first mold core body can be that permeability magnetic material forms, and it includes but is not limited to：Ferrite Material；Can also
Formed for permeability magnetic material with the combination of materials with high intensity or high tenacity, should include with material of high intensity or high tenacity but
It is not limited to：Ceramic material, plastics or composite.
In one embodiment, the first mold core body B1 and the second mold core body B2 are by magnetic materials such as ferrites
Composition, preferably nickel-zinc-ferrite material.
As shown in Figure 1-2, the pulse transformer that the combination PCB layout involved by another embodiment is formed, including：First
Mold core body B1 and the second mold core body B2, the second mold core body B2 of cover plate form are arranged on the first mold core body B1 installation
The reverse side of the side on PCB, coordinate with the first mold core body B1 and form closed magnetic circuit.
As shown in Fig. 1-2 to Fig. 1-4, it is preferable that the first mold core body B1 includes main part B1 (a) and plate portion B1
(b), have on plate portion B1 (b) electric correspondingly with electrode E1~E8 on the first mold core body main part B1 (a)
Pole E1'~E8', main part B1 (a) are installed on PCB by plate portion B1 (b).
In another embodiment, the main part B1 (a) in the first mold core body B1 is made up of permeability magnetic material, preferably
Nickel-zinc-ferrite material；Plate portion B1 (b) in first mold core body B1 can be made up of materials such as high intensity or high tenacity,
Preferably ceramic material.
Embodiment 1
The pulse transformer that a kind of combination PCB layout is formed
On the first core body B1, coiling S1 top S1a and end S1b respectively with first electrode E1, the 7th electrode E7
Connection, coiling S2 top S2a are connected with second electrode E2, the 8th electrode E8 respectively with end S2b, coiling S3 top S3a and end
End S3b be connected with the 3rd electrode E3, the 5th electrode E5 respectively, coiling S4 top S4a and end S4b respectively with the 4th electrode E4,
6th electrode E6 connections.
Wherein, coiling S1 and S3 is wound since the first core body B1 center pillar c first side c1, and from center pillar c
Second side c2 terminate to wind.Coiling S2 and S4, wound since center pillar c first side c1, and from center pillar c the second side
Face c2 terminates to wind.
Coiling S1~S4 is in a second direction on center pillar c, and second direction is counterclockwise (to E1 in terms of electrode E8
In the case of).
As shown in figures 2-6, PCB layouts are corresponding to the present embodiment：Pad 2 electrically connects with pad 7, pad 3 and the electricity of pad 6
Connection.
Wherein, can be using the first electrode E1 of pulse transformer, the 8th electrode E8 as input (output) end, the 4th electrode
E4, the 5th electrode E5 are as output (input) end.
Fig. 2-7 is the equivalent circuit diagram of the pulse transformer of the present embodiment 1.
A kind of embodiment of the manufacture method for the pulse transformer that combination PCB layout is formed
Coiling S1, S3 and coiling S2, S4 can be divided into four four layers of progress coilings, double-deck twice to carry out coiling, can also divide
Coiling is carried out to be simultaneously double-deck.
Preferably, two groups of coilings of bilayer progress simultaneously, its step are as follows：
Step 1, as shown in Fig. 2-1, prepare coiling S1, S2, S3, S4 first, and be each passed through First Line mouth N1, the
Two wires mouth N2, the 3rd line mouth N3, the 4th line mouth N4, First Line mouth N1 connect into an entirety by connecting rod and the 3rd line mouth N3,
Second line mouth N2 connects into an entirety by connecting rod and the 4th line mouth N4.Then, coiling S1, S2, S3, S4 are passed through into folder simultaneously
Tool M1, M2, M3, M4 are respectively fixed to first electrode E1, on second electrode E2, the 3rd electrode E3 and the 4th electrode E4.
Step 2, as shown in Fig. 2-2, using thermal compression welding fixture, by coiling S1, S2, S3, S4 top S1a, S2a,
S3a, S4a are connected with first electrode E1, second electrode E2, the 3rd electrode E3, the 4th electrode E4 respectively.Then, First Line mouth N1
With the 3rd line mouth N3 towards after being rotated to an angle close to first side c1 directions, to the 7th electrode E7 and the 5th electrode E5 directions
Mobile, almost synchronous with this, the second line mouth N2 and the 4th line mouth N4 followed by rotate one towards close to first side c1 directions
Determine angle, moved to the 8th electrode E8 and the 6th electrode E6 directions.
Step 3, by center pillar c in the first direction (in the case of E1 in terms of electrode E8, first direction is clockwise)
Rotate, the first side c1 of coiling S1 and coiling S3 along center pillar c is carried out coiling counterclockwise, coiling S2 almost synchronous with this
Coiling is carried out counterclockwise in the first side c1 of coiling S1 and coiling S3 upper stratas along center pillar c with coiling S4, is formed as in Figure 2-4
Double-deck winding structure.
Step 4, after coiling S1, S3 are around to the regulation number of turns, First Line mouth N1 and the 3rd line mouth N3 are moved to the 7th
Near electrode E7 and the 5th electrode E5.
Step 5, as Figure 2-3, First Line mouth N1 and the 3rd line mouth N3 is reduced into original angle by rotation；Work as coiling
S2, S4 are around to after providing the number of turns, and center pillar c is stopped operating, and the second line mouth N2 and the 4th line mouth N4 are moved to the 8th electrode E8
Near the 6th electrode E6, the second line mouth N2 and the 4th line mouth N4 are reduced into original angle also by rotation.Utilize thermal compression welding
Fixture, coiling S1 end S1b being connected on the 7th electrode E7, coiling S3 end S3b is connected on the 5th electrode E5, around
Line S2 end S2b is connected on the 8th electrode E8, and coiling S4 end S4b is connected on the 6th electrode E6.
Fig. 2-5 is the schematic diagram of pulse transformer.
It is another preferably, when two groups of double-deck coilings twice, first by coiling S1 and S3 top be connected respectively to S1a and
On S3a, the then rotation by center pillar c in the first direction, make the first side c1 of coiling S1 and coiling S3 along center pillar c counterclockwise
Coiling is carried out, then coiling S1 and S3 end S1b and S3b are connected respectively on the 7th electrode E7 and the 5th electrode E5, it is complete
Into first layer coiling, as illustrated in figs. 2 through 8.Next coiling S2, S4 top are connected respectively on S2a and S4a, then according to
Same mode makes its first side c1 along center pillar c carry out coiling counterclockwise, finally by coiling S2 and S4 end S2b and
S4b is connected respectively on the 8th electrode E8 and the 6th electrode E6, as shown in figs. 2-9, the coiling product ultimately formed and Fig. 2-5 one
Cause.
In embodiment 1, double-deck coiling twice or four four layers of winding methods compared to two groups, two groups of double-deck coilings simultaneously
The manufacture method of pulse transformer greatly reduces the coiling cycle, improves production efficiency by disposably carrying out coiling.
Embodiment 2
The pulse transformer that a kind of combination PCB layout is formed
In the first core body, coiling S1 top S1a and end S1b connects with first electrode E1, the 8th electrode E8 respectively
Connect, coiling S2 top S2a are connected with second electrode E2, the 7th electrode E7 respectively with end S2b, coiling S3 top S3a and end
S3b is connected with the 3rd electrode E3, the 6th electrode E6 respectively, coiling S4 top S4a and end S4b respectively with the 4th electrode E4, the
Five electrode E5 connections.
Coiling S1 and S3 is wound since center pillar c first side c1, and terminates to wind from center pillar c second side c2.
Coiling S2 and S4 is wound since center pillar c first side c1, and terminates to wind from center pillar c second side c2.
In a second direction on center pillar c, second direction is counterclockwise (from electrode E8 by coiling S1, S2, S3 and S4
In the case of seeing to E1).
As seen in figures 3-6, PCB layouts are corresponding to the present embodiment：Pad 2 electrically connects with pad 8, pad 4 and the electricity of pad 6
Connection.
Can be using the first electrode E1 of pulse transformer, the 7th electrode E7 as input (output) end, the 3rd electrode E3, the 5th
Electrode E5 is as output (input) end.
Fig. 3-7 is the equivalent circuit diagram of the pulse transformer of the present embodiment 2.
A kind of embodiment of the manufacture method for the pulse transformer that combination PCB layout is formed
Coiling S1, S3 and coiling S2, S4 can be divided into the double-deck progress coiling twice of two components, can also four layers of progress in four times
Coiling.
Preferably, its step is as follows during the double-deck coiling twice of two components：
Step 1, prepare coiling S1, S3 first, and be each passed through First Line mouth N1, the second line mouth N2.Then, will be around
Line S1, S3 are respectively fixed on first electrode E1, the 3rd electrode E3 by fixture M1, M2.Then, First Line mouth N1 is towards the 8th
Electrode E8 directions are moved, and the second line mouth N2 moves towards the 6th electrode E6 directions.
Step 2, as shown in figure 3-1, using thermal compression welding fixture, coiling S1 top S1a is connected with first electrode E1,
Coiling S3 top S3a is connected with the 3rd pole electrode E3.
Step 3, by center pillar c in the first direction (in the case of E1 in terms of electrode E8, first direction is clockwise)
Rotate, the first side c1 of coiling S1 and coiling S3 along center pillar c is carried out coiling counterclockwise.
Step 4, after coiling S1, S3 are around to the regulation number of turns, center pillar c stops operating, First Line mouth N1 and the second line mouth N2
Move near the 8th electrode E8 and the 6th electrode E6.
Step 5, as shown in figure 3-2, using thermal compression welding fixture, coiling S1 end S1b is connected to the 8th electrode E8
On, coiling S3 end S3b is connected on the 6th electrode E6.
Step 6, by coiling S2 and S4, according to step 1 identical mode, complete coiling S2 and S4 fixation and positioning.
Step 7, as shown in Fig. 3-3, using thermal compression welding fixture, according to step 2 identical mode, complete coiling S2's
Top S2a and S4 top S4a and second electrode E2 and the 4th electrode E4 connection.
Step 8, according to step 3 identical mode, complete first side c1 inverse times along center pillar c of coiling S2 and coiling S4
The coiling of pin.
Step 9, according to step 4 identical mode, corresponding line mouth will be moved to the 7th electrode E7 and the 5th electrode
Near E5.
Step 10, as shown in Figure 3-4, using thermal compression welding fixture, according to step 5 identical mode, make coiling S2's
End S2b is connected on the 7th electrode E7, and coiling S4 end S4b is connected on the 5th electrode E5.
Fig. 3-5 is the schematic diagram of pulse transformer.
Embodiment 3
The pulse transformer that a kind of combination PCB layout is formed
In the first core body, coiling S1 top S1a and end S1b connects with first electrode E1, the 6th electrode E6 respectively
Connect, coiling S2 top S2a are connected with second electrode E2, the 5th electrode E5 respectively with end S2b, coiling S3 top S3a and end
S3b is connected with the 3rd electrode E3, the 8th electrode E8 respectively, coiling S4 top S4a and end S4b respectively with the 4th electrode E4, the
Seven electrode E7 connections.
Coiling S1 and S2 is wound since center pillar c first side c1, and terminates to wind from center pillar c second side c2.
Coiling S3 and S4, wound since center pillar c second side c2, and terminate to wind from center pillar c first side c1.
Coiling S1 and S2 in a second direction on center pillar c, coiling S3 and S4 in the first direction on center pillar c,
First direction is that clockwise, second direction is counterclockwise (in terms of electrode E8 to E1 in the case of).
As Figure 4-Figure 6, PCB corresponding to the present embodiment is doubling plate, and first layer is A layers, and the second layer is B layers, in A layers,
Pad 2 electrically connects with pad 6；In B layers, pad 3 electrically connects with pad 7.
Can be using the first electrode E1 of pulse transformer, the 5th electrode E5 as input (output) end, the 4th electrode E4, the 8th
Electrode E8 is as output (input) end.
Fig. 4-7 is the equivalent circuit diagram of the pulse transformer of the present embodiment 3.
A kind of embodiment of the manufacture method for the pulse transformer that combination PCB layout is formed
Coiling S1, S2 and coiling S3, S4 can be divided into the double-deck progress coiling twice of two components, can also four layers of progress in four times
Coiling.
Preferably, its step is as follows during the double-deck coiling twice of two components：
Step 1, according to the step 1 identical mode of embodiment 2, complete coiling S1 and S2 fixation and positioning.
Step 2, as shown in Fig. 4-1, using thermal compression welding fixture, according to the step 2 identical mode of embodiment 2, will be around
Line S1 top S1a is connected with first electrode E1, and coiling S2 top S2a is connected with second electrode E2.
Step 3, according to the step 3 identical mode of embodiment 2, make the first side of coiling S1 and coiling S2 along center pillar c
C1 carries out coiling counterclockwise.
Step 4, according to the step 4 identical mode of embodiment 2, move First Line mouth N1 and the second line mouth N2
Near 6th electrode E6 and the 5th electrode E5.
Step 5, as shown in the Fig. 4-2, using thermal compression welding fixture, according to the step 5 identical mode of embodiment 2, will be around
Line S1 end S1b is connected on the 6th electrode E6, and coiling S2 end S2b is connected on the 5th electrode E5.
Step 6, by coiling S3 and S4, according to step 1 identical mode, complete coiling S3 and S4 fixation and positioning.
Step 7, as shown in Fig. 4-3, using thermal compression welding fixture, according to step 2 identical mode, complete coiling S3's
Top S3a and S4 top S4a and the 3rd electrode E3 and the 4th electrode E4 connection.
Step 8, according to step 3 identical mode, complete second side c2 up times along center pillar c of coiling S3 and coiling S4
The coiling of pin.
Step 9, according to step 4 identical mode, corresponding line mouth will be moved to the 8th electrode E8 and the 7th electrode
Near E7.
Step 10, as shown in Fig. 4-4, using thermal compression welding fixture, according to step 5 identical mode, make coiling S3's
End S3b is connected on the 8th electrode E8, and coiling S4 end S4b is connected on the 7th electrode E7.
Fig. 4-5 is the schematic diagram of pulse transformer.
Above content is to combine specific/preferred embodiment further description made for the present invention, it is impossible to is recognized
The specific implementation of the fixed present invention is confined to these explanations.For general technical staff of the technical field of the invention,
Without departing from the inventive concept of the premise, it can also make some replacements or modification to the embodiment that these have been described,
And these are substituted or variant should all be considered as belonging to protection scope of the present invention.
Claims (7)
1. a kind of pulse transformer, including the first mold core body, first mold core body has several electrodes, some coilings
Around first mold core body and coiling, and connected with corresponding electrode and form multiple windings；
First mold core body has first boss, second boss and center pillar, and the coiling is wrapped on the center pillar, described
A part of electrode in several electrodes is arranged in the first boss, and another part electrode in several described electrodes is set
Put in the second boss, each electrode in the first boss passes through the electrode in a coiling and the second boss
Connect correspondingly；
There is first electrode, second electrode, the 3rd electrode and the 4th electrode in the first boss, have the in second boss
Five electrodes, the 6th electrode, the 7th electrode and the 8th electrode, wherein, the first electrode is oppositely arranged with the 8th electrode,
The second electrode is oppositely arranged with the 7th electrode, and the 3rd electrode is oppositely arranged with the 6th electrode, and described
Four electrodes are oppositely arranged with the 5th electrode；Wherein described coiling includes the first coiling, the second coiling, the 3rd coiling and the 4th
Coiling；Characterized in that,
The top and end of wherein described first coiling are connected with the first electrode, the 7th electrode respectively, second coiling
Top and end be connected respectively with the second electrode, the 8th electrode, the top and end of the 3rd coiling respectively with institute
The 3rd electrode, the connection of the 5th electrode are stated, the top and end of the 4th coiling connect with the 4th electrode, the 6th electrode respectively
Connect；Wherein described first coiling, second coiling, the 3rd coiling and the 4th coiling are from the first boss
After electrode is drawn, wound since the first side of the center pillar, then it is relative with the first side from the center pillar
Second side terminates to wind, the counter electrode being then attached in the second boss, by carrying out wiring company with PCB pads
Connect so that：A) input of wherein described first electrode, the 8th electrode as the pulse transformer, described first around
The armature winding of line and second coiling as the pulse transformer, the 4th electrode, the 5th electrode are as institute
State the output end of pulse transformer, the secondary windings of the 3rd coiling and the 4th coiling as the pulse transformer；
Or b) wherein described first electrode, output end of the 8th electrode as the pulse transformer, first coiling and
Secondary windings of second coiling as the pulse transformer, the 4th electrode, the 5th electrode become as the pulse
The input of depressor, the armature winding of the 3rd coiling and the 4th coiling as the pulse transformer, so as to have
The characteristic of power transformer product.
2. pulse transformer as claimed in claim 1, it is characterised in that first coiling, second coiling, described
Three coilings and the 4th coiling turn to four layers on the center pillar；Or first coiling and the 3rd coiling are
One group and second coiling and the 4th coiling are another group, and two groups of coilings turn to bilayer on the center pillar；Or
First coiling and second coiling are one group and the 3rd coiling and the 4th coiling are another group, two groups of coilings
Bilayer is turned on the center pillar.
3. the pulse transformer as described in any one of claim 1 to 2, it is characterised in that described also including the second mold core body
The material of second mold core body is permeability magnetic material, and second mold core body is arranged on being arranged on PCB of the first mold core body
The side reverse side, with the first mold core body coordinate and form closed magnetic circuit.
4. pulse transformer as claimed in claim 3, it is characterised in that first mold core body of the pulse transformer
Including main part and plate portion, on the body portion, the main part passes through described for some coiling coilings
Plate portion is installed on PCB, is had on the plate portion and is corresponded the electricity electrically connected with the electrode of the main part
Pole, the electrode on the plate portion connect one to one with PCB pads.
5. pulse transformer as claimed in claim 3, it is characterised in that first mold core body and the second core sheet
Body contains permeability magnetic material.
6. a kind of manufacture method of pulse transformer, it is characterised in that according to any one of claim 1 to 5 pulse transforming
The pulse transformer that the structure combination PCB layout of device is formed, wherein, by some coilings around first mold core body carry out around
System, and is attached with corresponding electrode in first mold core body, forms multiple windings, the multiple winding respectively with it is right
The PCB pads answered carry out corresponding wiring connection, by and PCB pads combination, so as to the characteristic with power transformer product；Its
In, a part of winding in multiple windings is attached with corresponding PCB pads and forms armature winding, another in multiple windings
A part of winding is attached with corresponding PCB pads and forms secondary windings.
7. the manufacture method of pulse transformer as claimed in claim 6, it is characterised in that make such as any one of claim 1 to 5
During the pulse transformer, first coiling, second coiling, the 3rd coiling and the 4th coiling exist in four times
Four layers are turned on the center pillar；Or first coiling and the 3rd coiling for one group second coiling and institute
The 4th coiling is stated as another group, two groups of coilings turn to bilayer on the center pillar at twice or simultaneously；Or described first around
Line and second coiling are one group and the 3rd coiling and the 4th coiling are another group, and two groups of coilings are at twice or together
When turn to bilayer on the center pillar.
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| JP6665293B2 (en) * | 2016-07-05 | 2020-03-13 | 京セラ株式会社 | Coil components and inductors |
| CN107039163B (en) * | 2017-03-07 | 2019-01-08 | 深圳顺络电子股份有限公司 | Winding type coil and manufacturing method thereof |
| TWI656544B (en) * | 2018-02-27 | 2019-04-11 | 宏致電子股份有限公司 | Four-in-one network transmission pulse wafer |
| CN117174457A (en) * | 2022-05-25 | 2023-12-05 | 绵阳普思电子有限公司 | Chip type transformer |
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| CN101364470A (en) * | 2007-06-14 | 2009-02-11 | Tdk株式会社 | Transformer component |
| JP2010010354A (en) * | 2008-06-26 | 2010-01-14 | Tdk Corp | Coil part |
| CN203799778U (en) * | 2013-03-29 | 2014-08-27 | Tdk株式会社 | Pulse transformer |
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