Connector assembly with anti-rotation structure

Abstract

The utility model discloses a connector assembly with an anti-rotation structure, which comprises a sheath and a terminal assembly arranged in the sheath, the inner wall of the sheath is provided with a clamping arm used for preventing the terminal assembly from withdrawing from the sheath, the outer peripheral wall of the terminal assembly is provided with at least one anti-rotation clamping piece in a protruding manner, and the anti-rotation clamping piece is arranged on the outer peripheral wall of the terminal assembly. A blocking body is arranged on the inner wall of the sheath, a clamping groove matched with the anti-rotation clamping piece in shape is formed in one end, facing the direction in which the terminal assembly is installed in the sheath, of the blocking body, and after the terminal assembly is installed in the sheath, the anti-rotation clamping piece is embedded into the clamping groove so as to prevent the terminal assembly from rotating in the sheath. Therefore, the terminal assembly of the connector assembly does not rotate when being stressed, and has stable signal transmission performance. In addition, the anti-rotation structure has the advantages of being simple in structure, low in cost, beneficial to miniaturization design of the connector assembly and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector assembly with an anti-rotation structure. Background Art

[0002] The function of the connector is to realize the hub of power and signal transmission. The transmission reliability of the connector directly affects the performance stability of the product. At present, the connector is generally composed of a sheath and a terminal assembly arranged in the sheath, and the terminal assembly is generally composed of a cylindrical outer conductor, an inner conductor and an inner insulator assembly located between the two. The outer side of the outer conductor has a fixing assembly for connecting the outer sheath. When this structure is used, the outer conductor of the connector is easy to rotate when subjected to force, causing the inner and outer conductors to loosen, thereby affecting the normal transmission of the signal, and finally causing poor signal. In order to solve this technical problem, terminals and connector assemblies with anti-rotation structures are applied. However, the anti-rotation structures used in existing terminals and connector assemblies are mostly complex, which not only increases the manufacturing cost of the connector, but also is not conducive to the miniaturization design of the connector. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a connector assembly with an anti-rotation structure to solve the technical problem mentioned in the background technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a connector assembly with an anti-rotation structure, including a sleeve and a terminal assembly installed in the sleeve, the inner wall of the sleeve is provided with a clamping arm for preventing the terminal assembly from withdrawing from the sleeve, the outer peripheral wall of the terminal assembly is protruding with at least one anti-rotation clamping piece, the inner wall of the sleeve is provided with a blocking body, and the end of the blocking body facing the direction in which the terminal assembly is installed into the sleeve is provided with a clamping groove matching the shape of the anti-rotation clamping piece, after the terminal assembly is installed into the interior of the sleeve, the anti-rotation clamping piece is embedded in the clamping groove to prevent the terminal assembly from rotating in the sleeve.

[0005] In some embodiments, the terminal assembly includes a plug-in portion located at the front end and a conductive portion located at the rear end, and a step structure is formed at the connection between the plug-in portion and the conductive portion. One end of the clamping arm is connected to the inner wall of the sleeve, and the other end is extended along the direction in which the terminal assembly is inserted into the sleeve. After the terminal assembly is inserted into the interior of the sleeve, the free end of the clamping arm is clamped to the step structure to prevent the terminal assembly from withdrawing from the sleeve.

[0006] In some embodiments, there are multiple clamping arms, which are arranged at intervals along the circumference of the sleeve and together form a bowl-shaped structure with a large outer diameter at one end and a small outer diameter at the other end. The end of the bowl-shaped structure with a smaller outer diameter is clamped to the step structure.

[0007] In some embodiments, the sum of the central angles of the plurality of clamping arms corresponding to one end connected to the sheath is 60-240°.

[0008] In some embodiments, the plurality of clamping arms, the blocking body and the sheath are integrally injection molded.

[0009] In some embodiments, the terminal assembly includes an outer conductor, an inner insulator, and an inner conductor arranged in sequence from the outside to the inside, and a plurality of anti-rotation clips are provided, and the plurality of anti-rotation clips are arranged at intervals along the circumference of the outer conductor.

[0010] In some embodiments, a plurality of the blocking bodies are provided, and each of the blocking bodies is provided with a slot that matches the shape of the corresponding anti-rotation clamp.

[0011] In some embodiments, the outer conductor is formed by stamping and rolling a metal plate, and the anti-rotation clamp is a puncture structure stamped from the inside to the outside on the metal plate.

[0012] In some embodiments, the piercing structure has a first surface and a second surface arranged vertically, and after the terminal assembly is installed in the sheath, the first surface abuts against the bottom wall of the slot, and the second surface at least partially enters the slot and fits against the side wall of the slot.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention cooperates with the anti-rotation clamp provided on the outer peripheral wall of the terminal assembly and the blocking body provided on the inner wall of the sheath. After the terminal assembly is installed in the interior of the sheath, the anti-rotation clamp is embedded in the card groove of the blocking body to prevent the terminal assembly from rotating in the sheath, thereby making the terminal assembly of the connector assembly of the present invention not rotate when subjected to force, and having stable signal transmission performance; moreover, the above-mentioned anti-rotation structure has the advantages of simple structure, low cost, and is conducive to the miniaturized design of the connector assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] Figure 1 A front view of a connector assembly with an anti-rotation structure provided by the utility model;

[0016] Figure 2 A side view of the connector assembly provided by the utility model;

[0017] Figure 3 for Figure 2 Section view along AA direction;

[0018] Figure 4 for Figure 1 Cross-sectional view along BB direction;

[0019] Figure 5 This is a schematic diagram of the structure of the terminal assembly in the connector assembly provided by the utility model;

[0020] Figure 6 This is a schematic diagram of the cooperation between the terminal assembly and multiple clamping arms in the connector assembly provided by the utility model.

[0021] The following are marked in the figure:

[0022] 10. Sheath;

[0023] 20. Terminal assembly; 201. Plug-in portion; 202. Conductive portion; 203. Step structure; 204. Outer conductor; 205. Inner insulator; 206. Inner conductor;

[0024] 30. Clamping arm;

[0025] 40, anti-rotation clamp; 401, first surface; 402, second surface;

[0026] 50. blocking body; 501. card slot;

[0027] 60. The direction in which the terminal assembly is inserted into the sheath. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0031] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0032] A connector assembly with an anti-rotation structure, such as Figure 1-Figure 6As shown, the housing 10 includes a terminal assembly 20 installed in the housing 10, and a clamping arm 30 is provided on the inner wall of the housing 10 for preventing the terminal assembly 20 from withdrawing from the housing 10. Specifically, as shown in FIG. Figure 5 As shown, the terminal assembly 20 includes a plug-in portion 201 located at the front end and a conductive portion 202 located at the rear end. A step structure 203 is formed at the connection between the plug-in portion 201 and the conductive portion 202. One end of the clamping arm 30 is connected to the inner wall of the sleeve 10, and the other end is extended along the direction 60 in which the terminal assembly is inserted into the sleeve. After the terminal assembly 20 is inserted into the interior of the sleeve 10, the free end of the clamping arm 30 is clamped to the step structure 203 to prevent the terminal assembly 20 from withdrawing from the sleeve 10.

[0033] like Figure 2-Figure 4 As shown, at least one anti-rotation clamp 40 is protruding from the outer peripheral wall of the terminal assembly 20, and a blocking body 50 is provided on the inner wall of the sleeve 10. The blocking body 50 has a slot 501 matching the shape of the anti-rotation clamp 40 at one end facing the direction 60 in which the terminal assembly is inserted into the sleeve. After the terminal assembly 20 is inserted into the interior of the sleeve 10, the anti-rotation clamp 40 is embedded in the slot 501 to prevent the terminal assembly 20 from rotating in the sleeve 10, so that the terminal assembly 20 of the connector assembly of the utility model will not rotate when subjected to force, and has stable signal transmission performance; moreover, the above-mentioned anti-rotation structure has the advantages of simple structure, low cost, and is conducive to the miniaturized design of the connector assembly.

[0034] In one embodiment, a plurality of the clamping arms 30 are provided. In order to reduce the manufacturing cost of the connector assembly and improve its structural strength, the plurality of clamping arms 30, the blocking body 50 and the sheath 10 are integrally injection molded; further, the plurality of clamping arms 30 are arranged at intervals along the circumference of the sheath 10 and the plurality of clamping arms 30 together form a bowl-shaped structure with a large outer diameter at one end and a small outer diameter at the other end. The end of the bowl-shaped structure with a smaller outer diameter is clamped to the step structure 203. For details, please refer to Figure 3 , Figure 4 and Figure 6 The bowl-shaped structure has a good holding force on the terminal assembly 20, so that the terminal assembly 20 can be effectively fixed without further setting a secondary lock assembly, preventing the terminal assembly 20 from withdrawing from the sheath 10. Moreover, after omitting the secondary lock assembly, the volume of the connector assembly can be further reduced, which is conducive to the miniaturization of the connector assembly.

[0035] Next, by adjusting the sum of the central angles of the multiple clamping arms 30 at the ends connected to the sheath 10 (corresponding to Figure 4The holding force of the multiple clamping arms 30 on the terminal assembly 20 is demonstrated by using the sum of α1-α4 in α1-α4. The evaluation indicators are the insertion resistance of the terminal assembly 20 when inserted into the sheath 10 and whether the terminal assembly 20 is easy to fall off from the sheath 10 when subjected to external force. Please refer to the following Table 1 for details.

[0036]

[0037] Table 1

[0038] As can be seen from Table 1, when the sum of the central angles of the multiple clamping arms 30 corresponding to one end connected to the sheath 10 is 60-240°, the multiple clamping arms 30 have a good holding force on the terminal assembly 20 and can smoothly insert the terminal assembly 20 into the sheath 10. Among them, when the sum of the central angles of the multiple clamping arms 30 corresponding to one end connected to the sheath 10 is 120°, the best effect is achieved. Further, in order to make the force on the terminal assembly 20 more balanced, the clamping arms 30 are generally set to an even number, such as 2, 4, and 6 are preferred. In this embodiment, 4 clamping arms 30 are used. For details, please refer to Figure 4 and Figure 6 .

[0039] In one embodiment, if Figure 3 As shown, the terminal assembly 20 includes an outer conductor 204, an inner insulator 205 and an inner conductor 206 which are arranged in sequence from the outside to the inside. A plurality of anti-rotation clamps 40 are provided, and the plurality of anti-rotation clamps 40 are arranged at circumferential intervals along the outer conductor 204. The blocking body 50 can be provided as one or more. If only one is provided, a plurality of card grooves 501 corresponding to the plurality of anti-rotation clamps 40 are provided on the blocking body 50. If a plurality of blocking bodies 50 are provided, each blocking body 50 is provided with a card groove 501 matching the shape of the corresponding anti-rotation clamp 40. The blocking body 50 also serves as a front stop for the insertion of the terminal assembly 20. The plurality of clamping arms 30 mentioned above serve as a rear stop for the terminal assembly 20. The two cooperate to achieve the installation and fixation of the terminal assembly 20.

[0040] Specifically, when installing the terminal assembly 20, it is necessary to first forcefully insert the front end of the terminal assembly 20 into the interior of the sleeve 10 and abut against the blocking body 50, and then slowly rotate the terminal assembly 20 while providing a retaining force so that the anti-rotation clip 40 provided on the terminal assembly 20 is embedded in the slot 501. At this time, the multiple clamping arms 30 can be smoothly clamped to the step structure 203, and the assembly of the terminal assembly 20 and the sleeve 10 can be completed.

[0041] In one embodiment, the outer conductor 204 is formed by stamping and rolling a metal plate, and the anti-rotation clamp 40 is a puncture structure stamped from the inside to the outside on the metal plate. Figure 5 and Figure 6As shown, the piercing structure has a first surface 401 and a second surface 402 arranged vertically. After the terminal assembly 20 is installed in the sheath 10, the first surface 401 abuts against the bottom wall of the card slot 501, and the second surface 402 at least partially enters the card slot 501 and fits against the side wall of the card slot. For details, please refer to Figure 3 , so that the gap between the terminal assembly 20 and the sheath 10 is small after assembly, and the stability is good.

[0042] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A connector assembly with an anti-rotation structure, comprising a sheath and a terminal assembly installed in the sheath, wherein a clamping arm for preventing the terminal assembly from withdrawing from the sheath is provided on the inner wall of the sheath, characterized in that: At least one anti-rotation clamp is protruding from the outer peripheral wall of the terminal assembly, and a blocking body is provided on the inner wall of the sleeve. A slot matching the shape of the anti-rotation clamp is formed at one end of the blocking body facing the direction in which the terminal assembly is inserted into the sleeve. After the terminal assembly is inserted into the interior of the sleeve, the anti-rotation clamp is embedded in the slot to prevent the terminal assembly from rotating in the sleeve.

2. A connector assembly with an anti-rotation structure according to claim 1, characterized in that: The terminal assembly includes a plug-in portion located at the front end and a conductive portion located at the rear end. A step structure is formed at the connection between the plug-in portion and the conductive portion. One end of the clamping arm is connected to the inner wall of the sleeve, and the other end is extended along the direction in which the terminal assembly is inserted into the sleeve. After the terminal assembly is inserted into the interior of the sleeve, the free end of the clamping arm is clamped to the step structure to prevent the terminal assembly from withdrawing from the sleeve.

3. A connector assembly with an anti-rotation structure according to claim 2, characterized in that: There are multiple clamping arms, which are arranged at intervals along the circumference of the sleeve and together form a bowl-shaped structure with a large outer diameter at one end and a small outer diameter at the other end. The end of the bowl-shaped structure with a smaller outer diameter is clamped to the step structure.

4. A connector assembly with an anti-rotation structure according to claim 3, characterized in that: The sum of the central angles of the multiple clamping arms corresponding to one end connected to the sheath is 60-240 degrees.

5. The connector assembly with an anti-rotation structure according to claim 3, characterized in that: The plurality of clamping arms, the blocking body and the protective sleeve are integrally injection-molded.

6. The connector assembly with an anti-rotation structure according to claim 1, characterized in that: The terminal assembly includes an outer conductor, an inner insulator and an inner conductor which are sequentially arranged from the outside to the inside. A plurality of anti-rotation clamps are provided, and the plurality of anti-rotation clamps are spaced apart along the circumference of the outer conductor.

7. A connector assembly with an anti-rotation structure according to claim 6, characterized in that: There are a plurality of blocking bodies, and each of the blocking bodies is provided with a slot matching the shape of the corresponding anti-rotation clamp.

8. The connector assembly with an anti-rotation structure according to claim 6, characterized in that: The outer conductor is formed by stamping and rolling a metal plate, and the anti-rotation clamp is a puncture structure formed by stamping the metal plate from the inside to the outside.

9. The connector assembly with an anti-rotation structure according to claim 8, characterized in that: The piercing structure has a first surface and a second surface which are vertically arranged. After the terminal assembly is installed in the interior of the sheath, the first surface abuts against the bottom wall of the slot, and the second surface at least partially enters the slot and fits against the side wall of the slot.

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