EP0865105B1 - Female electrical contact with contact spring and use as a terminal contact - Google Patents

Description

The present invention relates first to a socket and further Meaning a contact spring provided with an inventive socket and one provided with a contact spring with a socket according to the invention electrical connector.

Sockets as elements of electrical engineering are known for example from BROCKHAUS, "Natural Sciences and Technology", Volume A-EK, FA Brockhaus-Wiesbaden 1983, p. 183, ISBN 3-7653-0357-7.

In the case of sockets, hereinafter referred to as sockets, there is first the problem, the connector pin referred to below as the contact pin in the Need to insert socket. After inserting the contact pin into the There is the problem that the contact pin, on the one hand, is good and durable, So immovable, must be held in the socket, the holding forces however, must be such that the contact pin can also be removed at any time the socket can be pulled out. Finally, the socket has to be procured be that the contact between the contact pin and socket is not a multiple Insertion and removal of the contact pin from the socket deteriorate may.

From EP-A-0 701 299 is one for receiving both cylindrical contact pins as well as flat contact plugs suitable socket known. at flank this socket when the contact pin or contact plug is inserted two contact surfaces the contact pin or contact plug. So far the known Socket for receiving cylindrical contact pins is one of the contact surfaces designed as a guide surface and the other contact surface as a friction surface. The guide surface is here with projections for positive guidance of the contact pin, while the friction surface frictionally engages the contact pin fixed in the socket.

In this known socket it is disadvantageous that it introduces the In principle, the contact pin allows only one plug-in direction. This possibility the pluggability in only one direction, reduces the flexibility of use of the known Sockets significantly. If the socket is on a prismatic Provided part, it may be desirable, for example, both this part to be installed in a vertical as well as in a horizontal arrangement. Using In this case, the known socket must have two separate types of socket be provided to allow both mounting orientations.

Starting from the disadvantages described, the invention is based on the object a simply constructed, functionally reliable socket with different To create plug directions. This task is due to the combination of features of claim 1 solved in an advantageous and inventive manner.

According to the preamble of claim 1, there are two contact surfaces in the socket provided which receive the contact pin between them. One of the two Contact areas act as a guide area. For this are on the management surface Protrusions provided which with the contact pin a positive Train leadership. Because the contact pin when inserted into the socket in the guide is a simple insertion or removal of the contact pin guaranteed from the socket.

To fix the inserted contact pin in its inserted position second contact surface formed as a friction surface. To this end, it also has protrusions, which, however, form a frictional connection with the contact pin. This Friction is designed so that the holding forces acting on the contact pin can be easily overcome by hand force when inserting the contact pin can. Tilting of the contact pin when inserting is due to the positive Leadership on the other contact surface effective as a guide surface effectively prevented.

According to the characterizing part of claim 1, the projections additionally form on each contact surface a protruding from the plane of the contact surface Relief. Both reliefs are identical. This is cheap in terms of production technology, because in principle both reliefs can be made with one and the same tool are. This lowers tool costs.

The preferably mutually parallel contact surfaces are related an imaginary, perpendicularly penetrating both contact surface levels Swivel axis pivoted against each other. The pivot angle is here really bigger than 0 ° and really smaller than 180 °. The central longitudinal axes of The guides formed in the relief projections thus run in different ways Directions. Due to this different direction of the guides The two contact surfaces are each of these directions as the insertion direction usable for the plug. It is evident that only the projections per insertion direction a relief of a contact surface as a form-fitting guide with the contact pin can cooperate with the result that the other leadership is inactive. As a result of the pivoted position of the contact surfaces against one another form the projections of the relief of the inactive guide with the contact pin a frictional connection. With the invention it is therefore possible to use a socket to design that two plug directions can be realized with a socket, wherein one contact surface each as a guide surface and not as a guide surface effective contact surface are effective as a friction surface. The reliefs on the contact areas thus have an inventive double function.

The back claims relate in part to inventive and self-inventing partially useful developments of the invention claimed in claim 1.

According to the teaching of claim 2, the reliefs and thus the two contact surfaces around the imaginary swivel axis with an offset of 90 ° to each other pivoted. The two plug directions that can be implemented with the socket run exactly perpendicular to each other. Relating to an imaginary, rectangular socket housing this means that the contact pin in one direction from the Back of the housing in the direction of the front of the housing or from the front of the housing can be pushed in towards the back of the housing, while in the other direction from the bottom of the housing towards on the top of the housing or from the top of the housing towards the bottom of the housing can be inserted. This means that with a corresponding Number of openings the imaginary case from each of its sides can be contacted by means of a contact pin.

By means of the socket according to the invention it is therefore possible to have a standard housing prefabricated for an electrical connector, which in numerous Relative positions on a corresponding one, provided with a contact pin electrical component can be connected. A variety of mounting positions of the part provided with the inventive socket compared to the corresponding part provided with the contact pin are thus constructive very easy way.

Claim 3 relates to a structurally simple and therefore inexpensive to manufacture Relief geometry. The relief is a V- or U-shaped guide groove designed, the end faces of the two groove legs out of the plane project out of the contact surface and thus as projections in the sense of the invention are effective. The relief designed in this way has the effect that the Inserted contact pin with the groove forms an open web guide, while the end faces of the groove legs of the inactive groove on the other Contact surface in the manner of two parallel brake ribs in the direction of the contact pin protrude and hold the contact pin frictionally. As a result of the friction of the contact pin on the end faces of the groove legs of the inactive guide groove the contact pin automatically becomes contaminated when plugged in or corrosion residues cleaned so that there is always good electrical contact between contact pin and socket is guaranteed.

The use of sheet metal as the bushing material is particularly advantageous Claim 4, in which the reliefs preferably formed as guide grooves can simply be molded as beads. In addition, both can Contact surfaces are resilient to improve both the mechanical as well as the electrical contact with the inserted contact pin. The socket can be produced particularly cost-effectively with the aid of a Stamping and bending process as specified in claim 5. Here, the entire material required for the bushing is punched out of a sheet of metal and then by appropriate shaping into the desired geometry to be brought.

To improve the properties of the socket according to the solution, it is advantageous as an additional guide in its cross-sectional shape to the geometry of the Provide contact pin adapted insertion opening as claimed in claim 6. When inserted, the contact pin is initially in the guide eye effective insertion opening. The insertion opening complements the one described above open web guidance to a partially closed web guidance. The Inserting the contact pin is additionally facilitated in this way. In particular is tilting of the contact pin in the socket and thus an undesired one Wear of the socket additionally prevented. In addition, the interface between Contact pin and socket additionally secured by means of the insertion opening, which additionally prevents unwanted voltage flashovers or leakage currents.

Claims 7 and 8 relate to stringent developments of those in claim 5 punch-bending technique mentioned. The insertion openings are next to the contact surfaces simply punched into sheet metal tabs. In the final production state the The area with the stamped insertion opening is then simply opposite the adjacent contact surface is bent at right angles. The order an insertion opening next to the friction surface in relation to this insertion opening effective contact area is space-saving because the guide groove is very close to the Insertion opening can be attached. By simply bending the individual Areas of the metal sheet can have the insertion openings and guide grooves in the desired relative position to each other are formed. This manufacture is easy to automate and therefore inexpensive.

Claim 10 relates to the synergistic effect of the individual features described above. According to the teaching of claim 10, the embodiment claimed there the inventive socket two to the outer geometry of each Contact pins adapted insertion openings. With every insertion opening a guide surface and an opposite friction surface act together. With the socket claimed there, it is possible to use two insertion directions at right angles to each other are provided with the socket to contact electrical component.

Claim 11 relates to a further embodiment of the socket with a or several additional contact elements molded onto at least one sheet metal tab. Such a contact element can be a solder pin, for example, for connecting the device provided with the socket to a printed circuit board or another device. The additional contact element then serves as it were as primary connection. The remaining, unused inventive ones Sockets can be used as secondary connections, for example for parallel connection or for bridging several devices provided with the inventive sockets serve. The individual devices can be oriented differently to one another be what is easy due to the variability of the inventive socket is possible.

Claims 12 and 13 relate to a per se from October 02, 1996 published European patent application with the publication number EP-A-0 735 616 known contact spring for an electrical connector. This European patent application filed on April 1, 1996 with the application number 96 105 169.5 goes back to the present applicant. The in the Claims 12 and 13 claimed contact spring is similar in structure with regard to its connection end that known from the European patent application Contact spring. In the contact spring according to claim 12 is in contrast to the European patent application mentioned the socket claimed here as Socket contact effective at the contact end for direct plug connection. According to claim 13 serves the additional contact element known from claim 11 as Connection at the contact end of the contact spring, while the socket or Sockets only for receiving additional contact pieces, for example an additional bridging contact in the form of a contact comb.

Finally, claims 14 and 15 relate to the whole of the aforementioned European patent application known electrical connector. According to claim 14, the inventive socket of the local invention is used in the known connector as the contact end, around the connector by means of the direct ones prescribed in the European patent application To be able to fix plug-in technology on a printed circuit board.

According to the teaching of claim 15, the one claimed in claim 11 in turn serves Additional contact element as a solder pin for fixing the connector using direct plug-in technology on the circuit board. The inventive socket in this embodiment again serves to accommodate further contact pieces, for example a tine of a contact comb. With the help of a contact comb several connector contacts can be bridged. This bridging is required, for example, to connect several protective conductor contacts to one another to connect because of an electrical connection of protective conductor contacts Conductor paths of a circuit board are not possible for safety reasons or is prohibited by appropriate standards. Of course it is also possible several contacts of a connector using a contact comb in parallel switch or switch in series. It is also possible due to the existence two sockets perpendicular to each other different sockets to be bridged independently of one another, i.e. a mix of different ones To provide bridges.

The aligned openings in the bottom of the insulating housing and the Insulating housing top according to claim 16 allow through the connector or the connector housing has a long, referred to as a contact mast Insert the contact pin. In this way it is possible to have multiple connectors to be arranged one above the other in the manner of a distributor or several with To connect boards or printed circuit boards connected connectors so that a Multiple connection of printed circuit boards is created. Here, the circuit boards be plugged onto the contact mast itself or the contact mast through onto the Printed circuit board-fixed connectors can be inserted.

Claim 17 finally relates to the use of the connector on a Printed circuit board as an interface to create a mother-daughter-board connection. With the invention it is therefore possible to connect several boards together connect to. Finally, it is advantageous in many embodiments that a Insertion opening for the socket is not required, so that a contact element Tester can be introduced, so that the opening as such unnecessary Test opening is usable.

Fig. 1

eine geschnittene Seitenansicht einer Kontaktfeder mit erfindungsmäßiger Steckbuchse und gestrichelt gezeichnet zwei Möglichkeiten zur Einführung jeweils eines Kontaktstifts,

Fig. 2

den Schnitt II-II in Fig. 1,

Fig. 3

den Schnitt III-III in Fig. 1,

Fig. 4

eine Seitenansicht einer Kontaktfeder ohne zusätzliches Kontaktelement,

Fig. 5

eine Draufsicht auf die Rückseite der Kontaktfeder gemäß Pfeil V in Fig. 4,

Fig. 6

eine Seitenansicht einer Kontaktfeder mit einem nach unten abgebogenen zusätzlichen Kontaktelement,

Fig. 7

eine Draufsicht auf die Rückseite der Kontaktfeder gemäß Pfeil VII in Fig. 6,

Fig. 8

eine Seitenansicht einer Kontaktfeder mit einem nach hinten abstehenden zusätzlichen Kontaktelement,

Fig. 9

eine Ansicht auf die Unterseite der Kontaktfeder gemäß Pfeil IX in Fig. 8,

Fig. 10

eine Seitenansicht einer in ein Steckverbindergehäuse eingesetzten Kontaktfeder gemäß Fig. 4,

Fig. 11

einen aus drei Steckverbindergehäusen gemäß Fig. 10 zusammengesetzten Verteiler,

Fig. 12

eine Seitenansicht einer in ein Steckverbindergehäuse eingesetzten Kontaktfeder gemäß Fig. 6,

Fig. 13

eine Seitenansicht einer in ein Steckverbindergehäuse eingesetzten Kontaktfeder gemäß Fig. 8,

Fig. 14

eine Schnittdarstellung eines Steckverbinders gemäß Fig. 11 mit einem senkrecht zum zusätzlichen Kontaktelement verlaufenden Kontaktkamm zum Zwecke der Brückung,

Fig. 15

eine Schnittdarstellung eines Steckverbinders gemäß Fig. 12 mit einem parallel zum zusätzlichen Kontaktelement verlaufenden Kontaktkamm zum Zwecke der Brückung,

Fig. 16

einen auf einer Mutterplatine angebrachten Steckverbinder gemäß Fig. 12 mit senkrecht dazu angebrachter Tochterplatine,

Fig. 17

einen auf einer Tochterplatine angebrachten Steckverbinder gemäß Fig. 12 mit einer senkrecht dazu angebrachten Mutterplatine,

Fig. 18

einen auf einer Mutterplatine angebrachten Steckverbinder gemäß Fig. 12 mit einer parallel zur Mutterplatine angebrachten Tochterplatine,

Fig. 19

einen auf einer Tochterplatine angebrachten Steckverbinder gemäß Fig. 12 mit einer senkrecht dazu angebrachten Mutterplatine mit einem zwischen Steckverbinder und Mutterplatine wirksamen Kontaktwinkel,

Fig. 20

einen auf einer Mutterplatine angebrachten Steckverbinder gemäß Fig. 12 mit senkrecht dazu angebrachter Tochterplatine und mit einem zwischen Tochterplatine und Steckverbinder wirksamen Kontaktwinkel,

Fig. 21

einen auf einer Mutterplatine angebrachten Steckverbinder gemäß Fig. 12 mit parallel dazu angebrachter Tochterplatine und mit einem Kontaktwinkel zwischen Tochterplatine und Steckverbinder,

Fig. 22

eine aus drei Platinen bestehende Mehrfachverbindung mit zwei Steckverbindern gemäß Fig. 12

Fig. 23

einen auf einer Mutterplatine angebrachten Steckverbinder gemäß Fig. 13 mit einer senkrecht dazu verlaufenden, am Steckverbinder angeschlossenen Tochterplatine

Fig. 24

zwei Blech-Stanzzuschnitte der Kontaktfedern gemäß Fig. 6 bzw. Fig. 8 vor dem Biegen.

The invention is described in more detail using the exemplary embodiments illustrated in the drawings. Show it:

Fig. 1

2 shows a sectional side view of a contact spring with a socket according to the invention and drawn in broken lines, two options for introducing a contact pin in each case,

Fig. 2

the section II-II in Fig. 1,

Fig. 3

the section III-III in Fig. 1,

Fig. 4

a side view of a contact spring without additional contact element,

Fig. 5

a plan view of the back of the contact spring according to arrow V in Fig. 4,

Fig. 6

2 shows a side view of a contact spring with an additional contact element bent downwards,

Fig. 7

a plan view of the back of the contact spring according to arrow VII in Fig. 6,

Fig. 8

2 shows a side view of a contact spring with an additional contact element projecting towards the rear,

Fig. 9

a view of the underside of the contact spring according to arrow IX in Fig. 8,

Fig. 10

3 shows a side view of a contact spring according to FIG. 4 inserted into a connector housing,

Fig. 11

a distributor composed of three connector housings according to FIG. 10,

Fig. 12

6 shows a side view of a contact spring according to FIG. 6 inserted into a connector housing,

Fig. 13

8 shows a side view of a contact spring according to FIG. 8 inserted into a connector housing,

Fig. 14

11 shows a sectional view of a connector according to FIG. 11 with a contact comb running perpendicular to the additional contact element for the purpose of bridging,

Fig. 15

12 shows a sectional view of a connector according to FIG. 12 with a contact comb running parallel to the additional contact element for the purpose of bridging,

Fig. 16

12 with a daughter board attached perpendicular to it,

Fig. 17

12 with a mother board mounted perpendicular to it,

Fig. 18

12 with a daughter board attached parallel to the mother board,

Fig. 19

12 with a mother board mounted perpendicular to it with an effective contact angle between the connector and mother board,

Fig. 20

12 with a daughter board attached perpendicular to it and with a contact angle effective between the daughter board and the connector,

Fig. 21

12 with a daughter board attached in parallel and with a contact angle between daughter board and connector,

Fig. 22

a multiple connection consisting of three circuit boards with two connectors according to FIG. 12

Fig. 23

a connector attached to a mother board according to FIG. 13 with a daughter board running perpendicular to it and connected to the connector

Fig. 24

two sheet metal die cuts of the contact springs according to FIG. 6 or FIG. 8 before bending.

The contact spring 1 has a connection end 2 and a contact end 3. In the area of the connection end 2 is a conductor, not shown, in the insertion direction 4 in the contact spring 1 insertable and contactable with this. The not shown In this embodiment, the conductor is between the spring roof 5 and the terminal end 2 of the contact spring 1 held. Finally serves the fixing tab bent out between the connection end 2 and the contact end 3 6 for fixing the contact spring 1 in a connector housing. Regarding further design details of the contact spring 1 and the introduction the contact spring 1 in a connector housing is expressly on the Contents of the aforementioned European patent application with the publication number 0 735 616. The entire revelation of the European The patent application should also apply expressly to the application here. It is expressly made to the disclosure of the European patent application Reference is made as far as the teaching of the local invention of the local disclosure not expressly opposed.

In Fig. 1, the contact pin 7 is shown in dash-dotted lines. This is supposed to Expression come that the contact pin 7 by both on the bottom 8th the contact spring 1 arranged bottom opening 9 as well as through a on the spring back 10 attached back opening 11 in the socket area 12 of the Contact spring 1 is insertable.

The contact pin 7, not shown in Fig. 2 is from the back 10 through the back opening 11 effective as insertion opening can be inserted into the socket. In the The bushing cavity 13 projects into the sheet metal tabs 14, 14 '. In each of the sheet metal tabs 14, a guide groove 15 with a U-shaped cross section is formed. The end faces 16 of the grooved legs 17, 17 'serve as projections in the sense of the invention. The contact pin 7 is in the guide groove 15 of the grooved legs 17, 17 ' guided. Relative to an imaginary one that runs perpendicular to both sheet metal brackets The pivot plates 18, 14 'are pivoted relative to one another by 90 °. During the guide groove 15 of the sheet metal tab shown on the right in FIG. 2 14 runs in the horizontal insertion direction 19, the corresponding runs Guide groove 15 of the sheet metal tab shown on the left in FIG. 2 in the vertical insertion direction 20. The guide grooves 15 of the two sheet metal tabs 14, 14 'run consequently at right angles to each other. The end faces 16 of the guide groove 15 of the in Fig. 2 sheet metal tab 14 shown on the left consequently run at right angles to the central longitudinal axis 21 of the inserted in Fig. 2 in the horizontal insertion direction 19 Contact pin 7 and are thus effective as brake ribs. The end faces 16 of the Guide groove 15 of the sheet metal tab 14 'shown on the left in FIG. 2 form together a frictional engagement with the contact pin 7 for the plug-in fixation of the contact pin 7 in the socket cavity 13.

The functions of the sheet metal tabs 14, 14 'are corresponding in the illustration of FIG Fig. 3 reversed compared to the representation in Fig. 2. 3 corresponds to the sheet metal tab 14 ′ shown in the upper area of the figure Fig. 2 sheet metal tab 14 'shown on the left. The corresponding is in the lower part of the Fig. 3 shown sheet metal tab 14 identical to that shown in the right part of FIG. 2 Sheet metal tab 14. Since in Fig. 3 the contact pin 7 shown there in a vertical Insertion direction 20 is inserted into the socket cavity 13, that is the central longitudinal axis 21 of the contact pin 7 there in the vertical insertion direction 20 runs, in this embodiment is that in the upper part of the figure illustrated sheet metal bracket 14 'formed guide groove 15 with its groove legs 17, 17 'act as a guide groove 15, while the end faces 16 of the opposite, on the sheet metal bracket 14 shown in the lower area of FIG. 3 serve as brake ribs to form a positive connection with the contact pin 7.

Each of the guide grooves 15 thus has a double function. Run the central longitudinal axis 21 of the contact pin 7 and the guide groove 15 in the same direction of insertion, form the cylinder jacket of the contact pin 7 and the guide groove 15 form-fitting open path guidance with each other. Corresponding run the central longitudinal axis 21 of the contact pin 7 and the other guide groove 15 perpendicular to each other, which leads to the end faces 16 of the groove legs 17, 17 'of the perpendicular to the central longitudinal axis 21 of the contact pin 7 Guide groove 15 are effective as brake ribs. In this case, the Guide groove 15 and the cylinder jacket of the contact pin 7 a frictional connection Holding the contact pin 7 in its insertion position in the socket cavity 13 out. The guide grooves 15 and in particular the end faces 16 of their groove legs 17, 17 'consequently have a double function according to the invention.

It can be seen from FIGS. 4 and 5 that a portion of the sheet metal tab 14 ' is bent out at right angles to form a back side 10. In the back side 10, the back opening 11 is formed. Since the contact spring 1 is made of sheet metal, the back opening 11 is simply punched into the sheet metal part and afterwards bent by 90 ° relative to the sheet metal bracket 14. 4 can also be seen the guide groove 15 extending in the horizontal insertion direction 19.

The contact spring 1 'shown in FIGS. 6 and 7 is in terms of its connection end 2 and the socket cavity 13 identical to that described above Contact spring 1 constructed according to FIG. 4. The only difference is that that at the bottom 8 as an additional contact element at right angles from the Underside 8 downward-facing solder pin 22 is formed. The solder pin 22 has thus in the vertical insertion direction 20. FIGS. 6 and 7 therefore relate to one Design of the contact spring 1 ', which is particularly suitable for this, with its underside 8 to be placed on a part to be connected.

There is a need to contact spring 1 'on its back 10 by means of a To place solder pins 22 in contact with another part, the is suitable for this 8 and 9 embodiment of the contact spring 1 ". In the Contact spring 1 ″ has the solder pin 22 ′ parallel in the horizontal insertion direction 19 running to the bottom 8 from the back 10.

10 finally shows the embodiment built into an insulating housing 23 the contact spring 1 according to FIG. 4. The contact spring 1 is by means of the fixing tab 6 fixed in the insulating housing 23. The insulating housing 23 has a conductor eye 24 through which a conductor not shown in the drawings in the insulating housing 23 can be inserted for contacting the terminal end 2 of the contact spring 1. For contacting the connector can the connector with the help of the insulating housing bottom 25 also in Fig. 10 circuit board, not shown, are placed. In the bottom of the insulating housing 25 can then be a contact pin pointing in the vertical insertion direction 20 7 inserted through the housing bottom opening 26 into the socket cavity 13 become. Analogously to that provided in the rear of the housing 27 Back opening 28 a contact pin 7 in the horizontal insertion direction 19 are inserted into the socket cavity 13. However, it is just as good also possible in the insulating housing 23 of the connector only either to provide a housing bottom opening 26 or a housing back opening 28. The insertion direction 19, 20 for the contact pin 7 is thus fixed from the outset Are defined. In this way it can be prevented in the manner of a coding that the insulating housing 23 of the connector in a wrong orientation, for example is placed on a circuit board. The advantage here is that the same Embodiment of the contact spring 1 both for the horizontal insertion direction 19 and used for the vertical insertion direction 20 can be. This is because the housing bottom opening 26 or the housing back opening 28 closed, is also the corresponding assigned floor opening 9 or back opening 11 of the contact spring 1 deactivated. After all it is also possible, a housing cover opening 30 on the housing top 29 Insert a contact pin 7 from the top 29 of the housing in a vertical direction Provide insertion direction 20.

11 shows one of three arranged one above the other in the vertical insertion direction 20 Isoliergehäusen 23 existing distributor 31. For arrangement one above the other stands in each case from the insulating housing underside 25 of each insulating housing 23 a stand 32 also. When arranging the insulating housing 23 one above the other is on the top 29 of the housing below Isoliergehäuses 23 of the stand 32 of the respective insulating housing arranged above 23 on. Enforced for contacting and fixing the position in the socket area the contact mast 33 all insulating housings 23 arranged one above the other or the socket cavities 13 of the contact springs lying in the insulating housings 23 1. The contact mast 33 thus replaces the contact pins 7 in the embodiments 1 to Fig. 10. The contact mast 33 is preferred designed in one piece and penetrates several connectors. To this The potential of the bottom or top connector is multiplied. Instead of only one conductor eye 24 there are three conductor eyes in the exemplary embodiment 24 of the same potential are available. The contact mast 33 penetrates here each insulating housing 23 both in its housing bottom opening 26 and in its housing cover opening 30 in the vertical insertion direction 20.

Fig. 12 again shows an insulating housing 23 with one in a vertical Insertion direction 20 facing solder pin 22 provided contact spring 1 '. With help of the solder pin 22 is the insulating housing 23 with its insulating housing underside 25 can be placed on a component, for example a printed circuit board. Is putting on the Isoliergehäuses 23 with the back of the housing 27 desired, this is with the in Fig. 13 shown connector possible. In the one shown in Fig. 13 Connector is in the insulating housing 23 that embodiment of the contact spring 1 '' integrated, with the solder pin 22 'in the horizontal insertion direction 19 protrudes from the rear of the housing 27.

In Fig. 14 is the embodiment of the connector shown in Fig. 12 shown again. It shows in addition to the details shown in FIG. 12 through the back opening 28 from the back of the housing 27 Contact comb 34 introduced into the socket cavity 13. The contact comb 34 serves to bridge a plurality of contacts formed by contact springs 1 ' in the connector. 14 with the bottom of the insulating housing 25 in the final assembly state on a not shown in Fig. 14 PCB sits with which the connector by means of the vertical Insert direction 20 pointing solder pins 22 is connected, the contact comb 34 can also be freely installed with the connector placed on the circuit board and removable. In contrast, dismantling is desirable of the contact comb 34 when the connector is mounted, the contact comb 34 simply from the housing side 25,27,29 into the socket cavity 13 introduced with which the connector sits on the circuit board. This is shown in FIG. 15. This is because there is the insulating housing 23 of the connector by means of the soldering pin 22 'pointing in the horizontal insertion direction 19 with the PCB connected. The connector is therefore with its rear side 27 on the circuit board, not shown. Because the contact comb 34 in turn introduced through the housing back opening 28 into the socket cavity 13 is, the contact comb 34 is, so to speak, through to the rear of the housing 27 adjacent circuit board closed.

By means of the contact comb 34, it is possible to have all the socket contacts Connector either from the case back opening 28 or from the case bottom opening 26 or from the housing cover opening 30 together to bridge. Of course, it is also possible to select several To bridge socket contacts. It is also a so-called mixed assembly possible when bridging, in which selected contacts with a first bridging are bridged from the case back opening 28 and other contacts in turn with a second jumper from the housing cover opening 30 or the housing bottom opening 26 are bridged here. Of course it is also possible to have both bridged and unbridged contacts in summarize a connector.

A further broad field of application of the invention is shown in FIGS. 16 to 23, namely the connection of several boards or printed circuit boards together. Fig. 16 shows a typical mother-daughter board connection. 16 extends in the horizontal insertion direction 19 a first circuit board, namely the motherboard 35. On the motherboard 35 is the insulating housing with its stand 32 23 of the connector. The construction of the connector corresponds to that Connector shown in Fig. 12. The solder pin 22 thus points in the vertical Insertion direction 20. The solder pin 22 is inserted into the circuit board bore 36 and soldered to it. The solder pin 22 thus forms the contact connection of the Connector to the motherboard 35. For the contact connection of the Mother board 35 with the second circuit board, the daughter board 37 is used for 16 shows the housing back opening 28. In the embodiment 16, the daughter board 37 is perpendicular to the mother board 35. The daughter board 37 thus extends in the vertical direction of insertion 20. The daughter board 37 is in turn from an insertion opening 38 breached. Inserted in the insertion opening 38 and - if desired - with you soldered the contact pin 7. The contact pin 7 engages mechanical and electrical coupling of the daughter board 37 through the back opening 28 into the socket area 12 of the contact spring 1 '. The connection between Contact pin 7 and the socket takes place as in connection with FIGS. 1 to Fig. 10 described. Between the daughter board 37 and the back of the case 27 is still the spacer ring used to stabilize the connector 39 a. The example of FIG. 16 also clearly shows that they are not housing opening 26, 28, 30 - blocked by contact pin 7 or contact mast 33 16, the housing cover opening 30 - can be used as a test opening can. Through the housing cover opening 30, a contact element can easily Tester for testing purposes are introduced.

The exemplary embodiment according to FIG. 17 shows the kinematic to a certain extent Inversion of the mother-daughter-board connection according to FIG. 16. In the exemplary embodiment 17 again extend the daughter board 37 in vertical insertion direction 20 and at right angles to the mother board 35 in horizontal insertion direction 19. In this embodiment, however, is the insulating housing 23 set up with its stand 32 on the daughter board 37. The Solder pin 22 passes through a circuit board bore 36 'in the daughter board 37. The In the exemplary embodiment according to FIG. 17, the connector thus serves as a daughter board connector. Consequently, the contact pin 7 is in an insertion opening 38 ' fixed in the motherboard. Correspondingly, it reaches through with a spacer ring 39 provided contact pin 7, the back opening 28 of the then vertical Connector. So with the mother-daughter-board connection can the connector both on the mother board 35 and on the daughter board 37 be arranged without this restricting the functionality of the connector. Again, the housing cover opening 30 is in the embodiment 17 can be used for test purposes.

18 to 21 in turn show a contact spring according to FIG. 6 or the 12, but with different occupancy of the openings 26,28,30 the socket on the one hand and different orientations of the Mother board 35 and the daughter board 37 to each other on the other hand. Fig. 18 shows a parallel mother-daughter-board connection. The one arranged in the drawing below Mother board 35 runs like the one arranged above in the drawing Daughter board 37 with the connector plugged in horizontally Insertion direction 19. In the exemplary embodiment according to FIG. 18, the Motherboard 35 the connector. The connector is with his Stand 32 on the motherboard 35 and is with its solder pin 22 in the motherboard 35 penetrating circuit board hole 36 soldered. The daughter board 37 is in turn penetrated by the contact pin in the insertion opening 38 7. The daughter board 37 rests with the interposition of the spacer ring 39 on the top of the housing 29 of the insulating housing 23. The contact pin 7 engages through the housing cover opening 30 in the socket. In the embodiment 18, the case back opening 28 is consequently left free. It would of course be equally possible to place the connector on the daughter board Provide 37 and the motherboard 35 accordingly with the contact pin 7 to connect through the housing cover opening 30 with the connector. In the illustration in FIG. 18, only the insulating housing 23 of the plug connector would have to be used for this be rotated.

FIG. 19 shows an arrangement of mother and daughter board according to FIG. 17. Here however, the contact is made using an angular contact pin, namely by means of the contact angle 40. The contact angle 40 engages again into an insertion opening 38 'in the motherboard 35 while the connector gets up with his stand 32 on the daughter board 37 and by means of Solder pins 22 penetrate the daughter board 37 in its circuit board bore 36 '. in the The difference from the exemplary embodiment according to FIG. 17 is in the exemplary embodiment 19 the case back opening 28 out of function and at the same time completely closed by the motherboard 35. The housing bottom opening 26 is closed accordingly by the daughter board 37. In the housing cover opening 30 is a leg of the contact angle 40 with the interposition of a spacer ring 39 inserted for contacting the motherboard 35 with the Daughter board 37.

20 shows further exemplary embodiments with a contact angle 40 and 21. In FIG. 20, the mother board 35 extends in the horizontal insertion direction 19 and perpendicular to it the daughter board 37 in the vertical insertion direction 20. The connector is in the embodiment shown in FIG. 20 with the Motherboard 35 connected. The contact angle 40 is through the housing cover opening 30 inserted into the socket area 12 so that the housing back opening 28 is released, for example for testing purposes. The daughter board 37 is additionally fixed to the contact angle 40 by means of a fixing ring 41.

Fig. 21 again shows the motherboard connector combination according to 20, but with the daughter board 37 running parallel to the mother board 35. Both boards run in the horizontal insertion direction 19. The coupling takes place through the back opening 28 by means of the contact angle 40, see above that the housing cover opening 30 is left free. Again, the daughter board 37 attached to the contact bracket 40 by means of a fixing ring 41. For additional Stabilization of the connection is a second fixing ring 41 'in the area of Housing back opening 28 arranged.

All conceivable mother-daughter-board connections can thus be made by means of the invention realize, the boards 35,37 each vertically or respectively can run horizontally or at right angles to each other. They are too Mixed forms of the aforementioned exemplary embodiments are conceivable.

A further embodiment is shown in FIG. 22. The same principle is used here as in the connector according to FIG. 11. Also in the embodiment according to 22 passes through a contact mast 33 a plurality of insulating housings 23 of connectors. In contrast to the exemplary embodiment according to FIG. 11, it is however, a multiple connection of boards 42. In the embodiment of 22 are the lower and the middle board 42 each in the manner of a mother board educated. For this purpose, you carry in analogy to the exemplary embodiments in 16, 18, 20 and 21 each have an insulating housing 23. The insulating housing 23 stands thereby with its base 32 on the board 42. The connection between The connector and circuit board 42 are again made by soldering a solder pin 22 in a circuit board bore 36. The housing rear openings 28 are each left free. The contact mast 33 penetrates the insulating housings 23 in their housing bottom openings 26 or housing cover openings 30. The saddled in each case Circuit board 42 rests on a spacer ring 39 between circuit board 42 and the top of the housing 29. The modified embodiment can also be seen in the exemplary embodiment Board 42 '. The board 42 'has only one insertion opening 38. The insertion opening the board 42 'is simply plugged onto the contact mast 33. Here So there is a direct plug connection between the contact mast 33 and the board 42 ', while in the case of the two lower boards 42 an indirect insertion or Contacting takes place by means of the arranged in the respective insulating housing 23 Rifle.

Fig. 23 shows an example of the same embodiment as Fig. 16. However is in contrast to the embodiment of FIG. 16 in the embodiment 23 a contact spring according to FIG. 8 or a connector according to Fig. 15 used. In contrast to the exemplary embodiments shown in FIGS. 16 to 22 extends the solder pin 22 'in this embodiment parallel to the top of the housing 29 or to the bottom of the housing 25. The solder pin 22 ' is in the printed circuit board bore 36 which is in the horizontal insertion direction 19 extending motherboard 35 soldered. Which is in accordance with the exemplary embodiment 23 extends in the horizontal insertion direction 19 extending contact pin 7 the daughter board 37 in the insertion opening 38 and is through the housing cover opening 30 with the interposition of the spacer ring 39 in the socket in the insulating housing 23 introduced. The case back opening 28 is in this embodiment closed by the motherboard 35. It is effective as a test opening Embodiment the housing bottom opening 26th

It is evident that the one used in the embodiment shown in FIG 8 or the corresponding connector according to Fig. 13 mutatis mutandis the same mother-daughter board connections realizable 16, 17, 18, 19, 20, 21 and 22. Here only have to the contact pin or the contact angle and the solder pin 22 changed in their orientation or be replaced. For example, consider the embodiment 16, then the solder pin 22 'would be with the daughter board 37th to connect and to couple the contact pin 7 to the motherboard 35 accordingly. The individual features of the exemplary embodiments described can thus also be made in this way combine the invention with each other.

24 finally shows the development of the sheet metal stamped part for the production of the Contact spring 1 ', 1 ". The stamped pattern 53 for the contact spring is from the metal sheet 52 1 ', 1' 'punched out. The individual punching patterns 53 are on the strips 54 molded. The strips 54 are used for production in the production direction 55 emotional. For the movement of the strips 54 in the production direction 55 there are delivery holes 56 provided in which spikes of a conveyor for moving the strips 54 can intervene in the direction of production 55.

The punching pattern 53 point to the connection ends 2 which are to be bent later Contact springs 1 ', 1' 'and the solder pin 22, 22' to be bent if necessary. Of Furthermore, the sheet metal tab 14 with the guide groove sunk into it can be seen 15 and the insertion opening which later becomes the bottom opening 9. For the production the contact spring 1 ', 1' ', the sheet metal tab 14 is simply around the bending edge 57 15 folded up from the drawing plane of FIG.

The further sheet metal tab 14 'with the one assigned to it can also be seen Guide groove 15 and the insertion opening forming the later back opening 11. To produce the contact spring 1 ', 1' ', the sheet metal tab 14' is around the longitudinal bending edge 58 bent out of the drawing plane of FIG. 15 upwards. additionally becomes the area of the sheet metal tab which later has the back opening 11 14 'around the transverse bending edge 59 from the plane of the drawing in FIG. 15 folded up. As a result of the deformation of the sheet metal tab 14 'around the longitudinal bending edge 58 and the additional deformation of the area with the later Back opening 11 and the transverse bending edge 59 is the back opening 11 later with its opening plane perpendicular to both that of the sheet metal tab 14 'assigned Guide groove 15 as well as to the level of the bottom opening 9.

Finally, the spring roof 5 is still around the spring roof bending edge 60 from the Drawing plane of Fig. 15 bent out. As a result of the 90 ° bend the longitudinal bending edge 58 extends the plane of the spring roof 5 in the final production state the contact spring 1 ', 1 "parallel to the bottom 8.

The solder pin 22, 22 'is either left in its orientation as in the stamped pattern 53. However, if the solder pin should point vertically downwards from underside 8, the solder pin 22 'around the solder pin bending edge 61 downwards, that is into the Drawing plane of Fig. 15 bent away from the bottom 8. For manufacturing A contact spring 1 without an additional contact element is the solder pin 22,22 'simply cut away or punched away. Before bending the punching pattern 53 along the dividing lines 62 from the strip 54 by a Die cut separately. The advantage of the above-described stamping and bending technology is its easy automation, which is a cost-effective production of the contact spring 1,1 ', 1 "entails.

LIST OF REFERENCE NUMBERS

1,1 ', 1 "

contact spring

2

terminal end

3

Contact end

4

insertion

5

groove roof

6

fixing tab

7

pin

8th

bottom

9

bottom opening

10

back

11

back opening

12

connector panel

13

socket cavity

14.14 '

sheet tab

15

guide

16

front

17.17 '

groove leg

18

imaginary swivel axis

19

horizontal insertion direction

20

vertical insertion direction

21

central longitudinal axis

22.22 '

solder pin

23

insulating

24

Head eye

25

Isoliergehäuseunterseite

26

Housing bottom opening

27

Case back

28

Case back opening

29

Housing top

30

Cover opening

31

distributor

32

stand

33

Contact mast

34

Contact comb

35

motherboard

36.36 '

PCB Hole

37

daughterboard

38.38 '

insertion

39

spacer

40

contact angle

41

fixation

42

circuit board

52

metal sheet

53

punching pattern

54

strip

55

production direction

56

feed hole

57

bending edge

58

Longitudinal bending edge

59

Cross bending edge

60

Spring umbrella bending edge

61

Lötpinbiegekante

62

parting line

Claims (17)

1. Socket having two contact faces (14, 14') for accommodating a contact pin (7),

   whose one contact face (14) is a guide face having projections (16) for guiding the contact pin (7) in an interlocking manner when it is pushed into the socket, and

   whose second contact face (14') is a friction face having projections (16) for fixing the contact pin (7) in a frictionally locking manner in its pushed-in position in the socket,

   in which

   reliefs formed by the projections (16) on the two contact faces (14, 14') are identical,

   characterized

   in that the reliefs of the two contact faces (14, 14') are pivoted with respect to one another at an angle in the range from 0° to 180°.
2. Socket according to Claim 1, characterized in that the reliefs are pivoted with respect to one another at an angle of 90°.
3. Socket according to one or more of the preceding claims, characterized in that the relief forms a guide groove (15), which is formed so as to be complementary with respect to the geometry of the contact pin (7), which lies between the projections, and whose groove limbs (17, 17') extend out at the ends towards the projections (16).
4. Socket according to one or more of the preceding claims, characterized in that the two contact faces are sheet-metal tabs (14, 14') having beads formed in them as guide grooves (15).
5. Socket according to Claim 4, characterized in that the sheet-metal tabs (14, 14') are produced from a metal sheet by means of a stamping and bending process.
6. Socket according to one or more of the preceding claims, characterized by an insertion opening (9, 11) having an opening cross section which matches the cross-sectional shape of the contact pin (7).
7. Socket according to Claim 6, characterized in that an insertion opening (9, 11) is stamped into each of the sheet-metal tabs (14, 14') adjacent to the contact faces.
8. Socket according to Claim 7, characterized in that, in the final, manufactured state of the socket, the contact face is bent back at a right angle with respect to the insertion opening (9, 11), which is stamped into the sheet-metal tab (14, 14') adjacent to said contact face.
9. Socket according to Claim 8, characterized in that the push-in direction of the guide (15) formed on the contact face extends at a right angle to the insertion direction of the adjacent insertion opening (9, 11) on the sheet-metal tab.
10. Socket according to Claim 9, characterized

    in that, in the final, manufactured state of the socket, the insertion openings (9, 11) are at right angles to one another,

    in that the relief formed on the contact face of the sheet-metal tab (14, 14') belonging to the respective other insertion opening (9, 11) acts as a guide (15) for the contact pin (7), and

    in that the relief formed on the same sheet-metal tab (14, 14') as the insertion opening (9, 11) acts as a friction face.
11. Socket according to one or more of Claims 4 to 10, characterized by a number of additional contact elements (22, 22') for the purpose of making the electrical contact between the socket and a further component, the contact elements (22, 22') being integrally formed on at least one of the sheet-metal tabs (14, 14').
12. Socket according to Claim 11, characterized in that the contact element (22, 22') is in the form of a plug-in pin or soldered pin.
13. Contact spring (1) having an elastically deflectable terminal end (2) for the purpose of making clamping contact with an electrical conductor and having a contact end (3) which is opposite the terminal end (2), and on which at least one socket according to one of Claims 1 to 12 is formed.
14. Electrical plug-in connector having an insulating housing (23) and a number, corresponding to the number of its electrical terminals, of contact springs (1) according to Claim 13.
15. Electrical plug-in connector according to Claim 14, comprising a contact comb (34) having at least two prongs, each of which is inserted in a contact-making manner in one socket in each case for the purpose of bridging two or more terminals.
16. Electrical plug-in connector according to Claim 14 or Claim 15, characterized by a housing base opening (26) in the underside (25) of the insulating housing and a housing top opening (30) in the upper side (29) of the housing, said housing top opening (30) lying opposite the housing base opening (26) in the perpendicular insertion direction (20) and being aligned therewith.
17. Electrical plug-in connector according to one or more of Claims 13 to 16, characterized by

    contact elements (22, 22'), acting as plug-in pins or soldering pins, for directly plugging the plug-in connector on a first printed circuit board, that is to say the mother board (35), and

    a contact pin (7) or contact pole (33) or contact bracket (40), which is plugged into one or more sockets, for producing the contact-making connection between the mother board (35) and a second printed circuit board, i.e. the daughter board (37), which accommodates the contact pin (7) or contact pole (33) or contact bracket (40).

Images