阅读说明：本技术 插塞连接器 (Plug connector ) 是由 K·策希曼 于 2021-04-27 设计创作，主要内容包括：本发明涉及一种插塞连接器,用于与配对插塞连接器建立电插塞连接部,其中,插塞连接器具有插塞连接器壳体和至少一个能导电的布置在接触部容纳通道中的接触弹簧体,该插塞连接器壳体带有至少一个接触部容纳通道,该接触弹簧体带有至少两个弹簧臂,这些弹簧臂可相对彼此弹性偏转并且共同地限定插入通道用于容纳配对插塞连接器的可导电的接触销,其中,弹簧臂在接触弹簧体的弯折区域中相互连接,并且每个弹簧臂都具有至少一个用于把相应的弹簧臂支撑在接触部容纳通道的通道壁处的支撑区域和用于与接触销接触的接触区域,其中,相应的弹簧臂的接触区域布置在相应的弹簧臂的支撑区域与接触弹簧体的弯折区域之间。(The invention relates to a plug connector for establishing an electrical plug connection with a mating plug connector, wherein the plug connector has a plug connector housing and at least one electrically conductive contact spring body arranged in the contact receiving channel, the plug connector housing having at least one contact receiving channel, the contact spring body having at least two spring arms, the spring arms are elastically deflectable relative to one another and jointly define an insertion channel for receiving an electrically conductive contact pin of a mating plug connector, wherein the spring arms are connected to one another in a bent-over region of the contact spring body and each have at least one support region for supporting the respective spring arm at a channel wall of the contact receiving channel and a contact region for contacting the contact pin, wherein the contact region of the respective spring arm is arranged between the support region of the respective spring arm and the bending region of the contact spring body.)

1. Plug connector (1) for producing an electrical plug connection (2) with a mating plug connector (3), wherein the plug connector (1) has a plug connector housing (4) with at least one contact receiving channel (5) and the contact receiving channel (5) is defined by channel walls (7, 8) of the plug connector housing (4) and at least one electrically conductive contact spring body (6) arranged in the contact receiving channel (5), wherein the contact spring body (6) has at least two spring arms (9, 10) which can be elastically deflected relative to one another and jointly define an insertion channel (11) for receiving an electrically conductive contact pin (12) of the mating plug connector (3), characterized in that the spring arms (9, 10) are connected to one another in a bending region (13) of the contact spring body (6) and in that each spring arm (9, 10) has at least one support region (14, 15) for supporting the respective spring arm (9, 10) on one of the channel walls (7, 8) and in that each spring arm (9, 10) has a contact region (16, 17) for contacting the contact pin (12), wherein the contact region (16, 17) of the respective spring arm (9, 10) is arranged between the support region (14, 15) of the respective spring arm (9, 10) and the bending region (13) of the contact spring body (6).

2. Plug connector (1) according to claim 1, characterized in that the spring arms (9, 10) of the contact spring body (6) are respectively supported with their respective support regions (14, 15) at one of the channel walls (7, 8) at least in an operating state in which the contact pins (12) are completely inserted into the insertion channel (11).

3. The plug connector (1) according to claim 1 or 2, characterized in that the contact spring body (6) has an insertion opening (18) for inserting an electrically conductive contact pin (12) of the mating plug connector (3) into the insertion channel (11), and the insertion opening (18) is arranged in a bending region (13) of the contact spring body (6).

4. The plug connector (1) according to claim 3, characterized in that the insertion opening (18) is configured as a circumferentially closed eye in the bending region (13) of the contact spring body (6).

5. Plug connector (1) according to one of claims 1 to 4, characterized in that the spring arms (9, 10) have a smaller mutual distance (19, 20) at least in the unloaded operating state in their contact regions (16, 17) than in their bearing regions (14, 15).

6. Plug connector (1) according to one of claims 1 to 5, characterized in that at least the spring arms (9, 10) of the contact spring body (6) are leaf-spring configured.

7. Plug connector (1) according to one of claims 1 to 6, characterized in that the contact spring body (6) has a coupling region (22) which projects from the plug connector housing (4) at its end (21) which is opposite the bending region (13).

8. Plug connector (1) according to claim 7, characterized in that a bead (29) is arranged in the region of the contact spring body (6) which points towards the coupling region (22).

9. Plug connector (1) according to one of claims 1 to 8, characterized in that the contact spring body (6) is constructed in one piece.

10. Plug connector (1) according to any one of claims 1 to 9, characterized in that the plug connector (1) is a cabinet socket provided for mounting at a housing of an electronic device.

11. Plug connector (1) according to one of claims 1 to 10, characterized in that the contact region (16, 17) of the respective spring arm (9, 10) is arranged between a support region (14, 15) of the respective spring arm (9, 10) and a respective connection of the respective spring arm (9, 10) and the bending region (13) of the contact spring body (6).

12. Plug connector (1) according to one of claims 1 to 11, characterized in that the contact spring body (6) is arranged with a gap between the channel walls (7, 8) in the bending region (13).

13. Electrical plug connection (2) having a plug connector (1) according to one of claims 1 to 12 and having a mating plug connector (3), wherein, in the fully plugged-together state of the plug connection (2), at least one electrically conductive contact pin (12) of the mating plug connector (3) is fully inserted into an insertion channel (11) of at least one electrically conductive contact spring body (6) and bears electrically conductively against a contact region (16, 17) of a spring arm (9, 10) of the contact spring body (6), and the spring arm (9, 10) is supported with its respective support region (14, 15) at one of the channel walls (7, 8) in each case.

Technical Field

The invention relates to a plug connector for producing an electrical plug connection with a mating plug connector, wherein the plug connector has a plug connector housing with at least one contact receiving channel (or contact receiving channel, or Kontaktaufnahmekanal) and at least one electrically conductive contact spring body (Kontaktaderkoper), which is defined by channel walls of the plug connector housing and in which the contact spring body is arranged, wherein the contact spring body has at least two spring arms which can be deflected elastically relative to one another and jointly define an insertion channel for receiving an electrically conductive contact pin of the mating plug connector. The invention further relates to an electrical plug connection with such a plug connector.

Background

Plug connectors of the type mentioned are already available on the market. In the prior art, the spring arms of the contact spring body are designed in a fork-like manner. The spring arms project freely in the direction of the insertion opening for inserting the electrically conductive contact pins of the mating plug connector and are connected to one another only on the side opposite the freely projecting ends.

It has been found that, in particular in applications in which the plug connector or the plug connection is mechanically shaken, contact disturbances occur as a result of vibrations.

Disclosure of Invention

The object of the invention is to provide an improvement to a plug connector of the type mentioned above, by means of which contact interruptions are avoided as much as possible even in the event of vibrations.

To this end, the invention proposes a plug connector according to claim 1.

It is thus provided that the spring arms are connected to one another in the bending region of the contact spring body and that each spring arm has at least one support region for supporting the respective spring arm at one of the channel walls and that each spring arm has a contact region for contacting the contact pin, wherein the contact region of the respective spring arm is arranged between the support region of the respective spring arm and the bending region of the contact spring body.

In other words, it is thus provided that the spring arms are connected to one another in a bent-over region of the contact spring body, in which contact region the spring arms respectively touch the contact pins in an electrically conductive manner, which contact region is arranged between this bent-over region and a corresponding support region of the respective spring arm, wherein the spring arms respectively are supported in their support region at a channel wall of the plug connector housing.

Thus preventing the following: during vibration, it may occur that the respective contact pin is disengaged from the spring arm of the respective contact spring body of the plug connector. As a result, the electrically conductive contact between the contact spring body and the contact pin and thus between the plug connector and the mating plug connector is permanently ensured even under vibration. Therefore, the contact interruption as in the prior art does not occur any more even at the time of vibration.

In this context, it is particularly advantageous if the contact region of the respective spring arm is arranged between the support region of the respective spring arm and the respective connection of the respective spring arm and the bending region of the contact spring body.

It is preferably provided that each contact spring body of the plug connector according to the invention has exactly two spring arms. The plug connector according to the invention can in principle be designed in a single channel, i.e. with only one contact receiving channel and a contact spring body arranged therein. In general, however, the plug connectors according to the invention are designed in a multi-channel manner, so that they have two or more electrically conductive contact spring bodies which are arranged in each case in a contact receiving channel. The mating plug connector then usually has a corresponding number of electrically conductive contact pins. The conductive connection of the contact spring body on the one hand and the contact pins on the other hand to electrical lines, conductor tracks or the like can be carried out in a manner known per se. In this connection, it can be provided in particular in the plug connector according to the invention that the contact spring body has a coupling region which projects from the plug connector housing at its end opposite the bending region. In this connection region, the contact spring body can then be electrically connected to the corresponding electrical line, the printed conductor of the circuit board, etc., by means of a connection means known per se, such as soldering or crimping.

It is advantageously provided for the plug connector according to the invention that the spring arms of the contact spring body are supported with their respective support regions at one of the channel walls at least in the operating state (in which the contact pin is fully inserted into the insertion channel). By supporting the spring arms of the contact spring body at the channel walls, as described, a reliable electrically conductive connection between the contact spring body and the contact pin is ensured even under vibration.

In a preferred variant, it is provided that the contact spring body has an insertion opening for inserting an electrically conductive contact pin of a mating plug connector into the insertion channel, and that the insertion opening is arranged in a bent region of the contact spring body. The insertion opening thus forms an entry through which the contact pin can be pushed into the insertion channel. In this case, it is preferably provided that the insertion opening is configured as a circumferentially closed bore in the bending region of the contact spring body. The insertion opening can thus be configured, for example, as a circular hole in the bending region of the contact spring body, but can also be configured as an oval hole. Other geometries of the perforations are of course possible. However, non-circumferentially closed designs of the insertion opening are also conceivable. The insertion opening can thus also be open to one side, for example, in such a way that the bending region of the contact spring body is guided around the insertion opening in a C-shaped manner.

A preferred variant of the plug connector according to the invention provides that the spring arms have a smaller distance from one another at least in the unloaded operating state in their contact regions than in their support regions. The unloaded operating state is understood here to mean a state in which the contact pin is not inserted into the insertion channel of the contact spring body and the spring arm is therefore in its undeflected initial position. For example, it can be provided that at least one spring arm (preferably each spring arm) contacting the spring body is curved in the contact region toward the other spring arm. In a preferred variant, it is also provided that the spring arms have a smaller distance from one another in their contact region than in their support region in the operating state, in which the contact pins are completely inserted into the insertion channel.

Preferably, at least the spring arms and the bending regions of the contact spring body are themselves elastically deflectable or otherwise deformably configured. Advantageously, the entire contact spring body is elastically deflectable or in other words elastically deformable. For example, it can be provided that at least the spring arms contacting the spring body are formed in a leaf spring manner. The entire contact spring body is particularly preferably leaf-spring-like. It can also be said that the spring arms and/or the contact spring bodies are configured as leaf springs. This does not of course mean that the leaf spring is of planar design, but rather can be formed, for example, in the region of the bend and/or also in the region of the spring arm, in a curved or otherwise curved manner.

In this connection, it is pointed out that the term "bending region" means, above all, only that the region which contacts the spring body has a curvature or, in general, a curvature which differs from a straight line. Instead of the bending region, it can also be said that it is a bending region of the contact spring body. This can be achieved by a bending process, but also by other manufacturing methods known per se.

In any case, a preferred embodiment of the invention advantageously provides that the contact spring body is of one-piece design. Particularly preferably, the contact spring body is made of a corresponding electrically conductive material, in particular a metal, such as spring steel, copper alloy or the like. In order to avoid corrosion phenomena as much as possible, the contact spring body and the contact pin are advantageously made of the same material. This also applies, of course, if more than one contact spring and more than one contact pin are provided per plug connector or per mating plug connector. In principle, the plug connector according to the invention can also be designed as a so-called cable plug, i.e. as a plug connector to be installed on at least one cable, or as an adapter. However, a preferred embodiment of the invention provides that the plug connector is a Chassis socket (chasses-Buchse) which is provided for mounting on a housing of an electronic device. The mating plug connector can be configured as a cable plug, but also as an adapter, or even as a cabinet socket.

In addition to the plug connector itself, the invention also relates to an electrical plug connection with a plug connector according to the invention and with a mating plug connector, wherein in the fully plugged-together state of the plug connection at least one electrically conductive contact pin of the mating plug connector is fully inserted into the insertion channel of the at least one electrically conductive contact spring body and bears electrically conductively against a contact region of a spring arm of the contact spring body, and the spring arm is supported with its respective support region correspondingly at one of the channel walls.

According to the invention, the electrical plug connection is precisely designed here such that it is particularly touch-safe even when vibrated. An electrical plug connection is a plug connection between a plug connector and a mating plug connector, wherein the contact spring body of the plug connector is correspondingly electrically conductively connected to the contact pin of the mating plug connector at least in the fully plugged-together state. As already mentioned above, a single-channel plug connection can be provided, in which the plug connector has only one contact spring body and the mating plug connector has only one contact pin. However, such plug connections are usually designed with a corresponding number of contact springs of the plug connector and a corresponding number of contact pins of the mating plug connector in a multi-channel manner.

Drawings

Further preferred features of the design according to the invention are exemplarily set forth in the following description of the figures. Wherein:

fig. 1 shows a perspective view of a plug connector according to the invention;

fig. 2 shows a perspective view of a corresponding mating plug connector;

fig. 3 shows a front view of the plug connector according to the invention according to fig. 1;

fig. 4 shows a longitudinal section through the plug connector along section line AA of fig. 3;

fig. 5 shows a contact spring body of the plug connector according to fig. 1 in a perspective view;

fig. 6 shows a front view of a bending region of the contact spring body according to fig. 5;

FIG. 7 shows an alternative design to FIG. 6;

fig. 8 shows a plug connection consisting of the plug connector according to fig. 1 and the mating plug connector according to fig. 2 in the fully plugged-together state;

fig. 9 shows a longitudinal section along section line BB of fig. 8;

fig. 10 shows an alternative design of the contact spring body.

Detailed Description

The plug connector 1, which is shown in perspective in fig. 1, for establishing an electrical plug connection 2 with a mating plug connector 3 shown in fig. 2 is an example of a multichannel plug connector 1. This embodiment of the plug connector 1 is suitable for producing five electrical contacts, as can be clearly seen, for example, at five housing openings 23 of the plug connector housing 4. One of the contact pins 12 of the mating plug connector 3 can be inserted correspondingly through the housing opening 23. Fig. 1 furthermore shows only the coupling region 22 of the contact spring body 6, which is otherwise arranged in hidden fashion in the plug connector housing 4, at the rear end, protruding from the plug connector housing 4. This embodiment of the plug connector 1 according to the invention is a cabinet socket provided for mounting at a housing of an electronic device. This can also be clearly seen at the mounting strap 26 of the plug connector housing 4. By means of these mounting lugs 26, the plug connector housing 4 and thus the plug connector 1 can be fixed to the respective housing of the electronic device in a manner known per se, for example by screwing.

In fig. 2, it can be clearly seen that the embodiment shown here is constructed as a cable plug of known cost for the plug connector 3. Accordingly, it has, in addition to the mating plug connector housing 24, a cable bushing 25 at the rear end opposite the contact pin 12.

Fig. 3 shows a front view of the plug connector 1 and five housing openings 23 which can be seen clearly there. Fig. 4 shows a longitudinal section along section line AA of fig. 3. The longitudinal section extends through one of the contact receiving channels 5 of the plug connector housing 4 with an electrically conductive contact spring body 6 arranged therein. As can be seen clearly in fig. 4, in this embodiment the contact-receiving channels 5 are also defined by channel walls 7 and 8 of the plug connector housing 4. The contact spring body 6 shown here as an example has two spring arms 9 and 10 which are elastically deflectable relative to one another and jointly define an insertion channel 11 for receiving an electrically conductive contact pin 12 of the mating plug connector 3. According to the invention, the spring arms 9 are connected to one another in a bending region 13 of the contact spring body 6. Furthermore, each spring arm 9 or 10 has at least one support region 14 or 15 for supporting the respective spring arm 9 or 10 at one of the channel walls 7 or 8. Additionally, each spring arm 9 or 10 has a contact area 16 or 17 for contacting the contact pin 12. The contact region 16 or 17 of the respective spring arm 9 or 10 is arranged between the support region 14 or 15 of the respective spring arm 9 or 10 and the bending region 13 of the contact spring body 6. In the bending region 13, in the design shown here, but also in other preferred designs, the contact spring body 6 is advantageously arranged with little play between the channel walls 7 and 8. While the support regions 14 and 15 of the spring arms 9 and 10 rest against one of the channel walls 7 and 8, respectively, at least in the operating state shown in fig. 9, in which the contact pin 12 is completely inserted into the insertion channel 11. In this way, at least in this inserted operating state, spring arm 9 is supported in its support region 14 at channel wall 7 and spring arm 10 is supported in its support region 15 at channel wall 8. In the unloaded operating state shown in fig. 4 (in which the contact pin 12 is not inserted into the insertion channel 11), the spring arms 9 and 10 can already rest with their support regions 14 and 15 against the channel walls 7 and 8, but can alternatively still be lifted off the channel walls 7 or 8. But at the latest when the contact pin 12 is inserted, the spring arms 9 and 10 are correspondingly elastically deflected relative to one another, so that the support mentioned then forcibly occurs. This support at the channel walls 7 and 8, and the connection of the spring arms 9 and 10 in the bending region 13, ensures the following: even in the event of vibrations, contact pin 12 inserted completely into insertion channel 11 bears permanently and reliably against contact regions 16 and 17 of spring arms 9 and 10 in such a way that an undesired interruption of the electrical connection between contact spring body 6 and contact pin 12 inserted therein does not occur.

In fig. 4, it is also clearly visible that in a preferred embodiment, the spring arms 9 and 10 have a smaller distance from one another at least in the unloaded operating state in their contact regions 16 and 17 than in their support regions 14 and 15, see the distance 19 between the support regions 14 and 15 and the distance 20 between the contact regions 16 and 17. This also applies advantageously in the operating state in which the contact pin 12 is completely inserted into the insertion channel 11 of the contact spring body 6. As in the embodiment variants shown here, this can be achieved, for example, in that the respective spring arm 9 or 10 is curved in its respective contact region 16 or 17 toward the respectively opposite spring arm 9 or 10.

In a preferred embodiment, such as the embodiment shown here, the insertion opening 18 is located in the bending region 13 of the contact spring body 6, through which the electrically conductive contact pin 12 of the mating plug connector 3 can be introduced or inserted into the insertion channel 11. The respective insertion openings 18 of the contact spring body 6 advantageously correspond to the respective housing openings 23 of the plug connector housing 4, so that the respective contact pins 12 of the mating plug connector 3 can be inserted through the respective housing openings 23 and the respective insertion openings 18 into the insertion channels 11 of the contact spring body 6.

In this design, as well as in other preferred designs of the invention, the coupling region 22 of the respective contact spring body 6 is located at the end 21 of the contact spring body 6 opposite the fold region 13. The coupling region 22 advantageously (as also shown here) projects from the plug connector housing 4. At the coupling regions 22 of the respective contact spring bodies 6, the respective electrical lines and/or the circuit tracks of the circuit board and/or the like can be electrically coupled in a manner and manner known per se.

The coupling region 22 of the contact spring body 6 can, as is realized in the exemplary embodiment shown here, project from the plug connector housing 4 parallel to the plug-in direction 27. Depending on the space requirement, however, these coupling regions 22 can of course also be formed at an angle to the insertion direction 27. The insertion direction 27 is the direction along which the mating plug connector 3 is inserted into the plug connector 1 in order to form the plug connection 2.

Fig. 5 shows one of the contact spring bodies 6 of the plug connector 1 of the exemplary embodiment shown here, which is released from the plug connector housing 4. It can also be clearly seen here that in this exemplary embodiment the insertion opening 18 is configured as a circumferentially closed eye in the bending region 13 of the contact spring body 6. It is furthermore clear that here in the example the entire contact spring body 6 is of leaf-spring design, i.e. in particular the spring arms 9 and 10 are also of leaf-spring design.

Fig. 6 shows a front view of the bending region 13 of the contact spring body 6 of this embodiment. It can be clearly seen here that the insertion opening 18 is of oval configuration in this embodiment. However, depending on the space available, a round design or an otherwise shaped insertion opening 18 can also be used.

According to the variant in fig. 7, for example, it is shown that the insertion opening 18 also does not have to be formed as a circumferentially closed bore. In the variant according to fig. 7, the contact spring body 6 is configured in a C-shape in the bending region 13, so that the insertion opening 18 is open to one side.

Fig. 8 now shows a view in which the plug connector 1 of fig. 1 and the mating plug connector 3 of fig. 2 form the plug connection 2 in the fully plugged-together state. Fig. 9 shows a cross-sectional view along section line BB. In the sectional plane according to fig. 9, it is shown how one of the electrically conductive contact pins 12 of the mating plug connector 3 is completely inserted into the insertion channel 11 of one of the electrically conductive contact spring bodies 6 and rests in an electrically conductive manner against the contact regions 16 and 17 of the spring arms 9 and 10, while the spring arms 9 and 10 are supported with their respective support regions 14 and 15 against one of the channel walls 7 or 8, respectively. Due to this support of the spring arms 9 and 10 at the channel walls 7 and 8 and the connection of the spring arms 9 and 10 in the bending region 13, the contact pin 12 is held or clamped securely between the spring arms 9 and 10 in such a way that even under vibration, no undesired interference of the electrical contact between the contact spring body 6 and the contact pin 12 occurs. Even though this is shown here only for one of the contact spring bodies 6 and contact pins 12, this is advantageously designed in a similar manner for all contact spring bodies 6 and contact pins 12 of the respective plug connection 2.

For the sake of completeness, it is pointed out that in the section according to fig. 9 only the connection (or coupling) 28 on the rear side of the contact pin 12 is shown. The connection of the electrical lines of the cable, which is not shown here and is guided through the cable sleeve 25, to these connections 28 can be effected in a manner known per se.

Fig. 10 shows an alternative design of the contact spring body 6. The contact spring body 6 according to fig. 10 can, for example, be used in the embodiments according to fig. 1 to 6, 8 and 9 already described in place of the contact spring body 6 according to fig. 5, or can also be used in other plug connectors 1 or plug connections 2 according to the invention. The only main difference between the solutions according to fig. 5 and 10 is the reinforcement rib 29, which is arranged in the region of the contact spring body 6 according to fig. 10 that is directed towards the end 21 or the nipple 22 in order to reinforce the contact spring body.

List of reference numerals:

1 plug connector

2 plug connection

3-pair plug connector

4 plug connector housing

5 contact receiving channel

6 contact spring body

7 channel wall

8 channel wall

9 spring arm

10 spring arm

11 insertion channel

12 contact pin

13 bending region

14 support area

15 support area

16 contact area

17 contact area

18 insertion opening

19 space apart

20 space apart

21 end of the tube

22 coupling area

23 opening of the housing

24-pair plug connector housing

25 cable sleeve

26 mounting strap

27 direction of insertion

28 joint

29 reinforcing ribs.