CN218919340U

CN218919340U - Anti-rotation terminal, TPA (thermoplastic elastomer) piece and connector

Info

Publication number: CN218919340U
Application number: CN202222770698.8U
Authority: CN
Inventors: 王超
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-04-25
Anticipated expiration: 2032-10-20
Also published as: WO2024083212A1

Abstract

The utility model discloses an anti-rotation terminal, a TPA (thermal power generation) piece and a connector, wherein a fixing assembly is of a sectional structure and comprises a first positioning part, a second positioning part and a middle part, wherein the first positioning part is arranged around the terminal assembly, the second positioning part is arranged around the terminal assembly, the middle part is used for connecting the first positioning part and the second positioning part, an anti-rotation groove matched with the middle part in shape is formed in the inner side of the TPA piece, and when the TPA piece is inserted into a sheath, the middle part is at least partially embedded into the inner side of the anti-rotation groove, so that an outer conductor of the connector is easy to rotate when stressed, and the problem that the inner conductor and the outer conductor are loose to influence normal transmission of signals is effectively prevented.

Description

Anti-rotation terminal, TPA (thermoplastic elastomer) piece and connector

Technical Field

The utility model relates to the field of automobile design and manufacture, in particular to an anti-rotation terminal, a TPA (thermoplastic elastomer) piece and a connector.

Background

The function of the connector is to realize the pivot of power supply and signal transmission, and the reliability of the connector transmission directly influences the performance stability of the product. At present, the connector generally comprises a sheath and a terminal assembly arranged in the sheath, wherein the terminal assembly generally comprises a cylindrical outer conductor, an inner conductor and an inner insulator assembly arranged between the outer conductor and the inner conductor, and a fixing assembly used for connecting the outer sheath is arranged on the outer side of the outer conductor.

Disclosure of Invention

Therefore, the present utility model is directed to an anti-rotation terminal, a TPA member and a connector, so as to solve the problem that the outer conductor of the connector is easy to rotate when being stressed, which causes loosening of the inner conductor and the outer conductor, thereby affecting normal transmission of signals, and finally causing poor signals.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an anti-rotation terminal, includes the terminal subassembly and sets up the fixed subassembly in the terminal subassembly outside, the fixed subassembly is including the first location portion that encircles the terminal subassembly setting, the second location portion that encircles the terminal subassembly setting and be used for connecting the intermediate part between them, and second location portion, intermediate part and first location portion three set gradually along the direction that the terminal subassembly inserted the connector.

In a preferred embodiment, the end of the first positioning portion remote from the second positioning portion has a tapered guide surface.

In a preferred embodiment, the middle portion is a linear plate structure, and a width of the linear plate structure is smaller than a width of the first positioning portion.

In a preferred embodiment, the fixing assembly is injection molded to the outside of the terminal assembly.

The TPA piece comprises two elastic side arms which are oppositely arranged, and a lapping plate used for connecting the two elastic side arms, wherein the inner sides of the tops of the elastic side arms inwards extend to form a compression joint part, and an inwards concave anti-rotation groove is formed between the compression joint parts of the two elastic side arms and the lapping plate.

In a preferred embodiment, the crimp has at least one obliquely arranged crimp surface.

In a preferred embodiment, at least one clamping groove is arranged on the outer wall of the elastic side arm.

A connector of the present utility model includes: a sheath with an accommodating cavity inside, and an inserting port communicated with the accommodating cavity is arranged on the sheath; the anti-rotation terminal is inserted in the accommodating cavity; and the TPA member is inserted into the sheath through the insertion opening;

the middle part is matched with the shape of the anti-rotation groove, the crimping part of the TPA part is pressed on the outer side of the terminal assembly, and the middle part is at least partially embedded into the anti-rotation groove.

In a preferred embodiment, the accommodating cavity comprises a first cavity and a second cavity, the first cavity is installed in a matched mode with the first positioning part, the second cavity is installed in a matched mode with the second positioning part, and the middle part corresponds to the inserting port.

In a preferred embodiment, the crimping part is provided with at least one section of crimping surface which is obliquely arranged, the TPA member is inserted into one end of the first positioning part, which is not provided with the guiding surface, and the crimping surface is attached to the outer wall of the terminal assembly.

In a preferred embodiment, the second positioning portion has a cross section of a regular polygon as a whole, and the intermediate portion is located at the top of the terminal assembly when the terminal assembly is inserted into the connector.

In a preferred embodiment, a stopper for restricting the axial direction of the terminal assembly is provided in the sheath on the insertion path of the terminal assembly.

In a preferred embodiment, the stop is a stop landing and/or a latch.

In a preferred embodiment, the clamping grooves are provided in plurality, clamping protrusions matched with the clamping grooves are arranged on the inner wall of the sheath, and when the TPA part is inserted into the sheath, the crimping parts of the two elastic side arms position the anti-rotation terminal.

In a preferred embodiment, two clamping grooves are formed, one end, far away from the anti-rotation groove, of each pressing surface is provided with a positioning surface, each positioning surface is a plane which is obliquely arranged, and each pressing surface is an arc surface which is formed by inwards sinking relative to each positioning surface.

Compared with the prior art, the utility model has the beneficial effects that: the fixing assembly is of a sectional structure and comprises a first positioning part, a second positioning part and a middle part, wherein the first positioning part is arranged around the terminal assembly, the second positioning part is arranged around the terminal assembly, the middle part is used for connecting the first positioning part and the second positioning part, an anti-rotation groove matched with the middle part in shape is formed in the inner side of the TPA, and after the TPA is inserted into the sheath, the middle part is at least partially embedded into the inner side of the anti-rotation groove, so that the outer conductor of the connector is easy to rotate when being stressed, and the problem that the inner conductor and the outer conductor are loose so as to influence normal transmission of signals can be effectively prevented.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

FIG. 1 is an exploded view of a connector according to the present utility model;

FIG. 2 isbase:Sub>A cross-sectional view taken along the direction A-A of the connector of FIG. 1 after assembly;

FIG. 3 is a cross-sectional view taken along the direction B-B of the connector of FIG. 1 after assembly;

fig. 4 is a schematic structural view of an anti-rotation terminal according to the present utility model;

fig. 5 is a schematic view of the structure of a TPA member provided by the present utility model;

FIG. 6 is a front view of FIG. 5;

fig. 7 is a schematic view of the positional relationship of the anti-rotation terminal and the TPA member after assembly;

fig. 8 is a schematic view of a TPA member partially inserted into a sheath;

the figures are marked as follows:

1. an anti-rotation terminal; 2. a TPA member; 3. a sheath; 4. a receiving chamber; 5. an insertion port; 6. a first cavity; 7. a second cavity;

10. a terminal assembly;

20. a fixing assembly; 201. a first positioning portion; 202. a second positioning portion; 203. an intermediate portion; 204. a guide surface;

30. a lapping plate;

40. an elastic side arm; 401. a crimping part; 402. an anti-rotation groove; 403. a press-contact surface; 404. a clamping groove; 405. a positioning surface;

50. a positioning piece; 501. limiting landing; 502. spring tongue;

60. and the clamping bulge is connected.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

The connector provided by the utility model, as shown in fig. 1-3, comprises: the inside sheath 3 that has holding chamber 4, insert and establish anti-rotation terminal 1 and TPA spare 2 in holding chamber 4, offered the inserted hole 5 that is linked together with holding chamber 4 on the sheath 3, TPA spare 2 inserts sheath 3 through inserted hole 5.

Wherein, as shown in fig. 4, the anti-rotation terminal 1 comprises a terminal assembly 10 and a fixing assembly 20 arranged outside the terminal assembly 10, the fixing assembly 20 comprises a first positioning part 201 arranged around the terminal assembly 10, a second positioning part 202 arranged around the terminal assembly 10 and an intermediate part 203 for connecting the two parts, and the second positioning part 202, the intermediate part 203 and the first positioning part 201 are sequentially arranged along the direction of inserting the terminal assembly 10 into the connector. Correspondingly, the accommodating cavity 4 comprises a first cavity 6 and a second cavity 7, the first cavity 6 is matched with the first positioning part 201, the second cavity 7 is matched with the second positioning part 202, and the middle part 203 corresponds to the insertion port 5.

In one embodiment, the end of the first positioning portion 201 away from the second positioning portion 202 has a tapered guiding surface 204, and the guiding surface 204 plays a guiding role during the insertion of the terminal assembly 10 into the sheath 3 of the connector, so as to facilitate the smooth insertion into the accommodating cavity 4 of the sheath 3.

In one embodiment, in order to reduce the manufacturing cost of the anti-rotation terminal 1, the terminal assembly 10 may be manufactured by stamping, and the fixing assembly 20 is injection molded on the outer side of the terminal assembly 10; the middle part 203 serves to connect the first positioning part 201 and the second positioning part 202, and can be configured as a linear plate structure, and the width of the linear plate structure is smaller than that of the first positioning part 201, so that injection molding is facilitated, injection molding cost can be reduced, and the terminal assembly 10 can be prevented from rotating by being matched with the TPA member 2.

As shown in fig. 5, 6 and 1, the TPA member 2 includes two opposite elastic side arms 40 and a bridging plate 30 for connecting the two, at least one clamping groove 404 is provided on the outer wall of the elastic side arm 40, a clamping protrusion 60 matched with the clamping groove 404 is provided on the inner wall of the sheath 3, and after the TPA member 2 is completely inserted in place, the TPA member is fixed by the clamping protrusion 60, so as to prevent the TPA member from shaking and backing; in addition, a limiting piece 50 for limiting the axial direction of the terminal assembly 10 is disposed on the insertion path of the terminal assembly 10 in the sheath 3, the limiting piece 50 is a limiting step 501 and/or a latch 502, and the limiting piece 50 provided in this embodiment includes the limiting step 501 and the latch 502, as shown in fig. 2, where the limiting step 501 limits the limiting position of the terminal assembly 10 in the insertion direction, and after the terminal assembly 10 is inserted in place, the latch 502 abuts against the inner side of the first positioning portion 201, so as to prevent the terminal assembly 10 from backing.

As shown in fig. 5 and 6, the top inner sides of the elastic side arms 40 are extended inward to form a press-contact part 401, an inward concave anti-rotation groove 402 is formed between the press-contact part 401 of the two elastic side arms 40 and the lap plate 30, and the middle part 203 is matched with the shape of the anti-rotation groove 402.

Further, the crimp portion 401 has at least one section of crimp surface 403 disposed obliquely, after the TPA member 2 is inserted into the sheath 3, the TPA member 2 is clamped on a side of the first positioning portion 201 where the guide surface 204 is not disposed, the crimp surface 403 of the TPA member 2 is attached to the outer wall of the terminal assembly 10, and the middle portion 203 is at least partially embedded into the anti-rotation groove 402, referring to fig. 3 and 7, the crimp surface 403 serves to radially fix the terminal assembly 10, and the structure of the anti-rotation groove 402 and the middle portion 203 in cooperation prevents the outer conductor of the connector from easily rotating when being stressed, so that the inner and outer conductors are loose, thereby affecting the normal transmission of signals.

In this embodiment, the clamping grooves 404 are provided in plurality, and the crimp parts 401 of the two elastic side arms 40 position the anti-rotation terminal 1 when the TPA member 2 is partially inserted into the sheath 3. The technical scheme of the utility model is described by taking two examples in the embodiment:

as shown in fig. 6, two clamping grooves 404 are formed on the outer wall of the elastic side arm 40, one end of the pressing surface 403 away from the anti-rotation groove 402 is provided with a positioning surface 405, the positioning surface 405 is a plane which is obliquely arranged, the pressing surface 403 is an arc surface which is formed by recessing inwards relative to the positioning surface 405, when the TPA 2 is partially inserted into the sheath 3, that is, when the clamping grooves 404 located below are clamped into the clamping protrusions 60, at this time, as shown in fig. 8, the pressing surfaces 403 on the two elastic side arms 40 are distributed on the left and right sides of the middle part 203, the positioning surface 405 is tangential to the cylindrical structure defined by the first positioning part 201, thereby achieving the purpose of positioning the anti-rotation terminal 1, when the TPA 2 is fully inserted into place, the clamping grooves 404 located above are clamped into the clamping protrusions 60, at this time, the pressing surface 403 of the TPA 2 is attached to the outer wall of the terminal assembly 10, thereby realizing the fixation of the anti-rotation terminal 1, and preventing the shaking and rollback of the TPA 2, as shown in fig. 3.

In an embodiment, as shown in fig. 4, the cross section of the second positioning portion 202 is a regular polygon, preferably a square, and the square structure is opposite to the cylindrical structure of the conventional fixing assembly 20, so that, on one hand, the terminal assembly 10 can be further prevented from rotating when being subjected to an external force, and on the other hand, the position of the middle portion 203 can be positioned, so that when the terminal assembly 10 is inserted into the connector, the middle portion 203 is located at the top of the terminal assembly 10, see fig. 3 specifically. Correspondingly, as shown in fig. 1, the TPA member 2 is also inserted into the accommodating cavity 4 from the top of the sheath 3, so that whether the middle part 203 is embedded into the anti-rotation groove 402 can be visually seen in the process of inserting the TPA member 2, and the situation of improper installation is prevented.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. The utility model provides an anti-rotation terminal, includes terminal assembly and sets up the fixed subassembly in the terminal assembly outside, its characterized in that: the fixing assembly comprises a first positioning part, a second positioning part and a middle part, wherein the first positioning part is arranged around the terminal assembly, the second positioning part is arranged around the terminal assembly, the middle part is used for connecting the first positioning part and the second positioning part, the middle part and the first positioning part are sequentially arranged along the direction that the terminal assembly is inserted into the connector.

2. An anti-rotation terminal according to claim 1, wherein: one end of the first positioning part far away from the second positioning part is provided with a conical guide surface.

3. An anti-rotation terminal according to claim 1, wherein: the middle part is a straight-line plate-shaped structure, and the width of the straight-line plate-shaped structure is smaller than that of the first positioning part.

4. An anti-rotation terminal according to claim 1, wherein: the fixing component is injection molded on the outer side of the terminal component.

5. A TPA member comprising two resilient side arms disposed in opposition, and a strap for connecting the two, characterized in that: the top inner sides of the elastic side arms extend inwards to form compression joint parts, and an inwards concave anti-rotation groove is formed between the compression joint parts of the two elastic side arms and the lapping plate.

6. A TPA member according to claim 5, wherein: the pressure connection part is provided with at least one section of pressure connection surface which is obliquely arranged.

7. A TPA member according to claim 5, wherein: at least one clamping groove is formed in the outer wall of the elastic side arm.

8. A connector, comprising:

a sheath with an accommodating cavity inside, and an inserting port communicated with the accommodating cavity is arranged on the sheath;

an anti-rotation terminal according to any one of claims 1 to 4 and inserted into the accommodation chamber;

and a TPA member as claimed in any one of claims 5-7, wherein the TPA member is inserted into the sheath through the insertion opening;

9. A connector as defined in claim 8, wherein: the accommodating cavity comprises a first cavity and a second cavity, the first cavity is installed in a matched mode with the first positioning portion, the second cavity is installed in a matched mode with the second positioning portion, and the middle portion corresponds to the inserting port.

10. A connector as defined in claim 8, wherein: the crimping portion is provided with at least one section of crimping surface which is obliquely arranged, the TPA member is inserted at one end of the first positioning portion, which is not provided with the guiding surface, and the crimping surface is attached to the outer wall of the terminal assembly.

11. A connector as defined in claim 10, wherein: the cross section of the second positioning part is in a regular polygon shape as a whole, and after the terminal assembly is inserted into the connector, the middle part is positioned at the top of the terminal assembly.

12. A connector as defined in claim 10, wherein: and a limiting piece used for limiting the axial direction of the terminal assembly is arranged in the sheath on the insertion path of the terminal assembly.

13. A connector as defined in claim 12, wherein: the limiting piece is a limiting ladder stand and/or a spring tongue.

14. A connector as defined in claim 8, wherein: at least one clamping groove is formed in the outer wall of the elastic side arm; the clamping grooves are formed in a plurality of ways, clamping protrusions matched with the clamping grooves are arranged on the inner wall of the sheath, and when the TPA part is inserted into the sheath, the crimping portions of the two elastic side arms position the anti-rotation terminal.

15. A connector as defined in claim 14, wherein: the clamping grooves are formed in two, the crimping part is provided with at least one section of crimping surface which is obliquely arranged, one end of the crimping surface, which is far away from the anti-rotation groove, is provided with a positioning surface, the positioning surface is a plane which is obliquely arranged, and the crimping surface is an arc surface which is formed by inwards sinking relative to the positioning surface.