DE102017220022B4 - Buchsenlötkontakt and contact module for a printed circuit board - Google Patents

Abstract

Buchsenlötkontakt for a printed circuit board, - with a first contact element (4) and- with a second contact element (6), - wherein the first contact element (4) has at least one solder pin (8, 10) which is adapted for soldering to the circuit board, - Wherein the first contact element (4) has a contact region (12) for contacting a plug contact, - wherein the second contact element (6) has at least one solder pin (14, 16) which is adapted for soldering to the circuit board, and- second contact element (6) has a contact region (18) for contacting the plug contact and wherein the first contact element (4) and the second contact element (6) form a single pole for contacting the plug contact, - the solder pin (8, 10) of the first Contact element (4) has a crank (42, 44) in the direction of the second contact element (6), - wherein the solder pin (14, 16) of the second contact element (6) has a crank (46, 48) in the direction of the first contact and - wherein free ends (50, 52, 54, 56) projecting from the respective offset (42, 44, 46, 48) of the solder pins (8, 10, 14, 16) along a plug-in direction ( R) of the plug contact considered aligned in a comb-like alignment.

Description

The present invention relates to a Buchsenlötkontakt for a printed circuit board and a contact module for a printed circuit board with such a Buchsenlötkontakt.

Contact modules that are soldered to a printed circuit board, such as a printed circuit board. Contact sockets or baseboards usually have a female solder contact per pole, which consists of a single solder. The geometry of this solder specifies the position of a plug contact, the location of the solder contacts, and the mounting force required to insert a plug into a contact area of the solder. A disadvantage here is that such a Buchsen soldering contact is not variable with respect to the aforementioned position of the plug contact, the arrangement of the solder contacts and the required mounting force.

The documents DE 10 46 137 A . US 2005/0 101 162 A1 and US 2009/0 142 953 A1 each show Buchsenlötkontakte for a circuit board.

Against this background, the technical problem underlying the invention is to provide a Buchsenlötkontakt and a contact module for a printed circuit board, which do not have the above disadvantages or at least to a lesser extent, and in particular allow a reliable, variable contacting plug contacts and easier installation inserted plug.

The aforementioned technical problem is solved in each case by a Buchsenlötkontakt according to claim 1 and a contact module according to claim 9. Further embodiments of the invention will become apparent from the dependent claims and the description below.

According to a first aspect, the invention relates to a Buchsenlötkontakt for a printed circuit board, having a first contact element and a second contact element, wherein the first contact element has at least one solder pin, which is adapted for soldering to the circuit board, wherein the first contact element has a contact area for contacting a Plug contact has, wherein the second contact element has at least one solder pin, which is adapted for soldering to the circuit board, and wherein the second contact element has a contact area for contacting the plug contact and wherein the first contact element and the second contact element form a single pole for contacting the plug contact ,

Due to the at least two-part construction of the Buchsenlötkontakts two contact areas can be specified, which allow contacting a male contact. The contact of a plug contact is thus variable and not limited to a single contact area, as is the case, for example, for the above-described, consisting of a one-piece solder Buchsenlötkontakt.

According to a further embodiment of the Buchsenlötkontakts is provided that the contact region of the first contact element has a local constriction for positive and / or non-positive reception of the plug contact, wherein the contact region of the second contact element has a local constriction for positive and / or non-positive reception of the plug contact and wherein the local constriction of the first contact element viewed along a plug-in direction of the plug contact has an offset to the local constriction of the second contact element.

By the offset of the constriction of the contact region of the first contact element with respect to the constriction of the second contact element, the mechanical resistance of the Buchsenlötkontakts against insertion of a plug can be reduced by the plug to be inserted along the insertion initially viewed a constriction and then meets the further constriction.

According to a further embodiment of the Buchsenlötkontakts is provided that the contact region of the first contact element has at least two cantilevered webs, wherein the local constriction of the first contact element has at least one provided on a web contact nose and wherein the contact nose extends at least partially in the direction of the other web is and wherein the contact region of the second contact element has at least two cantilevered webs, wherein the local constriction of the second contact element has at least one contact lug provided on a web and wherein the contact lug is at least partially extending in the direction of the respective other web, and wherein the contact lug of the the first contact element viewed along a plug-in direction of the plug contact has an offset to the contact nose of the second contact element.

The contact tabs can cause a defined contact of a plug contact. Since the contact lugs viewed along the insertion direction are arranged offset from one another, a plug contact of a plug in the assembled state at the contact lug of the first Contact element and / or abut the contact nose of the second contact element.

The cantilevered webs may be formed as spring arms, which are adapted to resiliently clamped to abut an associated plug contact. Such a spring arm can be deflected by inserting a plug on a surface of the plug abgleitend transversely to the insertion of the plug or the plug contact and so resiliently clamped against a plug contact. In this way, a simple, reliable and non-destructive detachable contact between a plug contact and the Buchsenlötkontakt can be achieved.

It can be provided that the local constriction of the first contact element has two mutually facing contact tabs which are formed on the webs of the first contact element. Alternatively or additionally, it may be provided that the local constriction of the second contact element has two mutually facing contact tabs which are formed on the webs of the second contact element. Thus, in each case a two-sided contacting of a plug contact can be effected.

According to a further embodiment of the Buchsenlötkontakts is provided that the local constriction of the first contact element is provided at the end in the region of free web ends of the webs of the first contact element. Alternatively or additionally, it may be provided that the local constriction of the second contact element is provided at the end in the region of free web ends of the webs of the second contact element. Thus, a compact design and reliable contacting of a plug contact can be achieved.

According to a further embodiment of the Buchsenlötkontakts is provided that at least one of the webs has a latching projection for locking in a plastic housing of a contact module, wherein the latching projection is arranged in particular on a side facing away from the contact nose of the web. A latching projection may be adapted to engage in a recess, a projection or an undercut of the plastic housing of the contact module, or abut against a stop formed on the plastic housing to the plastic housing of the contact module positively and / or non-positively oriented against an opposite direction of insertion To deduct or lose.

According to the inventive design of the Buchsenlötkontakts is provided that the solder pin of the first contact element has a crank in the direction of the second contact element, that the solder pin of the second contact element has a crank in the direction of the first contact element, and that projecting from the respective crank, free ends of the Lötstifte viewed along a plug-in direction of the plug contact are aligned in a comb-like alignment. Thus, a compact design of the Buchsenlötkontakts be achieved.

It can be provided that the first contact element has at least two solder pins, in particular exactly two solder pins, that the second contact element has at least two solder pins, in particular exactly two solder pins, wherein at least one solder pin of the first contact element, in particular exactly one solder pin of the first contact element , is arranged between two solder pins of the second contact element and wherein at least one solder pin of the second contact element, in particular exactly one solder pin of the second contact element, is arranged between two solder pins of the first contact element. Thus, a compact design of the Buchsenlötkontakts be achieved by the distance between the comb-like arranged arranged solder pins with the same current carrying capacity can be selected very narrow and is not specified in particular by punching technology related minimum distances.

According to a further embodiment of the Buchsenlötkontakts is provided that the first contact element and the second contact element at least partially abut each other gap-free. Thus, a compact design of the Buchsenlötkontakts be achieved.

Alternatively or additionally, it may be provided that the first contact element and the second contact element are connected to each other at least in sections cohesively and / or adhesively and / or positively and / or non-positively. Thus, a reliable contact of the first contact element and the second contact element can be achieved.

According to a second aspect, the invention relates to a contact module for a printed circuit board, with a plastic housing, with at least one receiving opening for insertion of a plug, and with at least one of the receiving opening associated, received in the plastic housing Buchsenlötkontakt, the Buchsenlötkontakt is formed in accordance with the invention.

The at least two-part construction of the Buchsenlötkontakts serves for contacting a single pole of a plug contact. In the assembled state of a plug therefore each pole of the plug is assigned a separate two-piece Buchsenlötkontakt. A contact module can therefore a Have plural two-piece Buchsenlötkontakte, each associated with a pole.

The contact module can be a base strip or a contact socket, which are each set up for soldering to a printed circuit board.

As far as solder pins are cranked in the manner described above, the required standard spacing of adjacent poles can be maintained in a confined space.

• 1 einen erfindungsgemäßen Buchsenlötkontakt in einer perspektivischen Ansicht von oben;
• 2 Kontaktelemente des Buchsenlötkontakts aus 1 in einer perspektivischen Ansicht von oben;
• 3A ein erfindungsgemäßes Kontaktmodul mit dem Buchsenlötkontakt aus 1 in einer ersten perspektivischen Ansicht;
• 3B das Kontaktmodul aus 3A in einer zweiten perspektivischen Ansicht;
• 3C das Kontaktmodul aus 3A in einer dritten perspektivischen Ansicht.

The invention will be described in detail with reference to an exemplary embodiments illustrative drawing. Each show schematically:

• 1 a Buchsenlötkontakt invention in a perspective view from above;
• 2 Contact elements of the Buchsenlötkontakts 1 in a perspective view from above;
• 3A an inventive contact module with the Buchsenlötkontakt 1 in a first perspective view;
• 3B the contact module off 3A in a second perspective view;
• 3C the contact module off 3A in a third perspective view.

1 shows a Buchsenlötkontakt 2 for a printed circuit board. The Buchsenlötkontakt 2 has a first contact element 4 and a second contact element 6 ,

In the 1 shown position of the first contact element 4 relative to the second contact element 6 describes the Buchsenlötkontakt 2 in the fully assembled, soldered to a circuit board state. Im in 1 illustrated, fully assembled state of Buchsenlötkontakts 2 are the first contact element 4 and the second contact element 6 gap-free to each other.

2 shows the contact element 4 and the contact element 6 each separately in individual representations to the structural design of the Buchsenlötkontakt 2 forming contact elements 4 . 6 to clarify.

The first contact element 4 has a first solder pin 8th and a second solder pin 10 , The solder pins 8th . 10 of the first contact element 4 are set up for soldering with a printed circuit board.

The first contact element 4 has a contact area 12 for contacting a plug contact.

The second contact element 6 has a first solder pin 14 and a second solder pin 16 , The first solder pin 14 and the second solder pin 16 of the second contact element 6 are set up for soldering with a printed circuit board.

The second contact element 6 has a contact area 18 for contacting a plug contact.

The first contact element 4 and the second contact element 6 form a single pole for contacting the plug contact.

The contact area 12 of the first contact element 4 has a local narrowing 20 , The local narrowing 20 of the first contact element 4 is provided for positive and / or non-positive reception of the plug contact. The contact area 18 of the second contact element 6 has a local narrowing 22 , The local narrowing 22 of the second contact element 6 is provided for positive and / or non-positive reception of the plug contact. The local narrowing 20 and the local narrowing 22 are along a plug-in direction R considered the connector contact to each other staggered.

The contact area 12 of the first contact element 4 has two freely projecting webs 24 . 26 , The local narrowing 20 of the first contact area 12 is present by two contact tabs 28 . 30 educated. Here is the contact nose 28 in the direction of the jetty 26 extends. The contact nose 30 is in the direction of the jetty 24 extends.

The local narrowing 22 of the contact area 18 of the second contact element 6 is by facing contact tabs 32 . 34 formed on cantilevered webs 36 . 38 of the contact area 18 are provided of the second contact element.

The contact noses 28 . 30 of the first contact element and the contact tabs 32 . 34 of the second contact element 6 are along the insertion direction R viewed offset to each other.

The local narrowing 20 or the contact noses 28 . 30 are at the ends in the area free web ends of the webs 24 . 26 arranged. Equally, the local constriction 22 passing through the contact lugs 32 . 34 is formed, end in the area free web ends of the webs 36 . 38 intended. At every jetty 24 . 26 . 36 . 38 is in each case a locking projection 40 for locking a plastic housing 62 a contact module 58 intended ( 3A) ,

Every locking projection 40 is in each case on one of the respective contact nose 28 . 30 . 32 . 34 opposite side of the respective free web end of the associated web 24 . 26 . 36 . 38 arranged.

The solder pins 8th . 10 of the first contact element 4 each have a bend 42 . 44 in the direction of the second contact element 6 on. The solder pins 14 . 16 of the second contact element each have a crank 46 . 48 in the direction of the first contact element 4 on. From the particular bend 42 . 44 . 46 . 48 cantilevered, free ends 50 . 52 . 54 . 56 the solder pins 8th . 10 . 14 . 16 are along the insertion direction R of the plug contact strung in a comb-like alignment.

The solder pin 10 of the first contact element 4 is between the solder pins 14 . 16 of the second contact element 6 arranged. The solder pin 14 of the second contact element 6 is between the solder pins 8th . 10 of the first contact element 4 arranged.

The 3A . 3B and 3C show a contact module according to the invention 58 for a printed circuit board 60 , The contact module 58 has a plastic housing 62 , with at least one receiving opening 64 for inserting a plug. The contact module 58 has at least one of the receiving opening 64 assigned, in the plastic housing 62 recorded Buchsenlötkontakt 2 , wherein the Buchsenlötkontakt 2 correspond to the 1 and 2 is formed in accordance with the invention.

LIST OF REFERENCE NUMBERS

2

Buchsenlötkontakt

4

first contact element

6

second contact element

8, 10, 14, 16

solder pin

12, 18

contact area

20, 22

local narrowing

24, 26, 36, 38

web

28, 30, 32, 34

Contact nose

40

catch projection

42, 44, 46, 48

cranking

50, 52, 54, 56

free end

58

contact module

60

circuit board

62

Plastic housing

64

receiving opening

R

insertion

Claims (9)

Buchsenlötkontakt (2) for a printed circuit board (60), - with a first contact element (4) and - with a second contact element (6), - wherein the first contact element (4) has at least one solder pin (8, 10) for soldering is arranged with the printed circuit board (60), - wherein the first contact element (4) has a contact region (12) for contacting a plug contact, - wherein the second contact element (6) has at least one solder pin (14, 16), which is for soldering the printed circuit board (60) is arranged, and - wherein the second contact element (6) has a contact region (18) for contacting the plug contact, and - the first contact element (4) and the second contact element (6) have a single pole for contacting the plug contact forming, characterized in that - the solder pin (8, 10) of the first contact element (4) has a crank (42, 44) in the direction of the second contact element (6), - wherein the solder pin (14, 16) of the second contact element (6) has a crank (46, 48) in the direction of the first contact element (4), and - wherein from the respective crank (42, 44, 46, 48) cantilevered, free ends (50, 52, 54, 56) of Solder pins (8, 10, 14, 16) viewed along a plug-in direction (R) of the plug contact aligned in a comb-like alignment. Receptacle solder contact (2) to Claim 1 - wherein the contact region (12) of the first contact element (4) has a local constriction (20) for positive and / or non-positive reception of the plug contact, - wherein the contact region (18) of the second contact element (6) has a local constriction (22 ) for positive and / or non-positive reception of the plug contact, and - wherein the local constriction (20) of the first contact element (4) along an insertion direction (R) of the plug contact considered an offset to the local constriction (22) of the second contact element (6) having. Receptacle solder contact (2) to Claim 2 , - wherein the contact region (12) of the first contact element (4) has at least two cantilevered webs (24, 26), wherein the local constriction (20) of the first contact element (4) at least one on a web (24, 26) provided Contact nose (28, 30) and wherein the contact nose (28, 30) the contact region (18) of the second contact element (6) has at least two cantilevered webs (36, 38), wherein the local constriction (22) of the at least section extends in the direction of the respective other web (24, 26) second contact element (6) has at least one contact nose (32, 34) provided on a web (36, 38) and wherein the contact nose (32, 34) extends at least in sections in the direction of the respective other web (36, 38), and wherein the contact nose (28, 30) of the first contact element (4) viewed along a plug-in direction (R) of the plug contact has an offset to the contact nose (32, 34) of the second contact element (6). Receptacle solder contact (2) to Claim 3 - wherein the local constriction (20) of the first contact element (4) has two mutually facing contact lugs (28, 30) which are formed on the webs (24, 26) of the first contact element (4), and / or - local constriction (22) of the second contact element (6) has two mutually facing contact lugs (32, 34) which are formed on the webs (36, 38) of the second contact element (6). Buchsenlötkontakt (2) according to one of Claims 3 or 4 , - wherein the local constriction (20) of the first contact element (4) is provided at the end in the region of free web ends of the webs (24, 26) of the first contact element (4) and / or - wherein the local constriction (22) of the second contact element ( 6) is provided at the end in the region of free web ends of the webs (36, 38) of the second contact element (6). Buchsenlötkontakt (2) according to one of Claims 3 to 5 , - wherein at least one of the webs (24, 26, 36, 38) has a latching projection (40) for locking in a plastic housing (62) of a contact module (58), wherein the latching projection (40) on one of the contact lug (28, 30 , 32, 34) facing away from the web (24, 26, 36, 38) is arranged. Buchsenlötkontakt (2) according to any one of the preceding claims, - wherein the first contact element (4) has at least two solder pins (8, 10), - wherein the second contact element (6) has at least two solder pins (14, 16), - Wherein at least one solder pin (10) of the first contact element (4) between two solder pins (14, 16) of the second contact element (6) is arranged and - Wherein at least one solder pin (14) of the second contact element (6) between two solder pins (8, 10) of the first contact element (4) is arranged. Buchsenlötkontakt (2) according to any one of the preceding claims, - Wherein the first contact element (4) and the second contact element (6) abut each other at least in sections gap-free, and / or - Wherein the first contact element (4) and the second contact element (6) are connected to each other at least partially cohesively and / or adhesive and / or positive and / or non-positive. Contact module (58) for a printed circuit board (60), - with a plastic housing (62), - with at least one receiving opening (64) for inserting a plug, - and associated with at least one of the receiving opening (64), in the plastic housing (62) received Buchsenlötkontakt (2), - wherein the Buchsenlötkontakt (2) according to one of Claims 1 to 8th is formed.

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