TPA structure and wire connector

Abstract

The utility model belongs to the technical field of wire connectors, and discloses a TPA structure and a wire connector. The connector comprises a plug-in main body which is in a rectangular sheet shape, side surfaces of two sides of the plug-in main body protrude to form first plug-in parts, two sides of each first plug-in part are in contact with a wire connector, a plane is formed between side edges of the plug-in main body, and a first slot is formed in one side, close to the side edges, of the plane and is projected in the direction perpendicular to the side surfaces. The first inserting part is overlapped with the first slotted hole; the problem that in the prior art, a TPA structure can be excessively abraded in the installation process, and then the TPA structure cannot be further fixed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a TPA structure and a connector. Background Art

[0002] In the connector, the terminals in the connector need to be fixed secondary by the TPA device so that the terminals can maintain a higher holding force. The TPA device in the prior art is made of plastic injection molding, and passes through the limiting structure in the connector through its own deformation, so that the limiting structure and TPA are abutted and fixed to each other, so that TPA can further fix the terminals. However, when TPA contacts the limiting structure, it will cause a large deformation of TPA and cause excessive wear on the contact surface on TPA, which will reduce the size of TPA, resulting in the inability of TPA to be fixed to the limiting surface. TPA gradually becomes looser, and eventually TPA loses its ability to fix the terminals during subsequent use, shortening the service life of TPA. Utility Model Content

[0003] The utility model aims to provide a TPA structure and a connector, so as to solve the problem that the TPA structure in the prior art will be excessively worn during the installation process, thereby causing the TPA structure to be unable to be further fixed.

[0004] To achieve this purpose, the utility model adopts the following technical solution: the utility model provides a TPA structure, including a plug-in body, the plug-in body is in the shape of a rectangular sheet, the side protrusions on both sides of the plug-in body form a first plug-in part, the first plug-in part is in contact with the connector on both sides, a plane is formed between the side edges of the plug-in body, the plane is provided with a first slot on one side close to the side edge, and is projected perpendicular to the side direction, and the first plug-in part overlaps with the first slot.

[0005] Preferably, the first slot is rectangular, and the length of the first slot is greater than the length of the first plug-in portion.

[0006] Preferably, the edge protrusion of the side surface forms a second plug-in portion, and the second plug-in portion abuts against the inner wall of the connector.

[0007] Preferably, a guide surface is formed on the outer side of the second plug-in portion, the angle between the guide surface and the side surface is acute, and the guide surface is connected to the side surface at a side close to the connector.

[0008] Preferably, a notch is provided on an edge of the plug-in body, which is perpendicular to the side projection, and the second plug-in portion overlaps with the notch.

[0009] Preferably, a pressing portion is formed on the upper side of the plug-in body, and the pressing portion is perpendicular to the plug-in body.

[0010] A connector comprises the TPA structure described above, wherein a plug-in cavity is formed on the upper side of the connector, the TPA structure is plugged into the plug-in cavity, a limiting portion is formed on the inner wall of the plug-in cavity, the limiting portion is interference fit with the first plug-in portion, the first plug-in portion contacts the limiting portion, an installation area is formed on the side surface, and the limiting portion is snap-fitted into the installation area.

[0011] Beneficial effect: During the process of pressing the TPA structure, the first plug-in part will contact the inner wall of the plug-in cavity on the upper side of the connector. When it is inserted to a certain depth, the first plug-in part will contact the limiting part and form an interference fit. At this time, the first plug-in part is strongly squeezed, causing the first plug-in part to deform toward the first slot hole. By opening the first slot hole, the deformation caused by the first plug-in part can be absorbed. After being squeezed, the first plug-in part shrinks toward the inside of the plug-in body. The friction between the first plug-in part and the limiting part is reduced by the deformation of the first plug-in part itself, thereby reducing the wear on the surface of the first plug-in part, so that the TPA can maintain its own size during repeated use and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the TPA structure plug-in diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model connector.

[0014] In the figure: 1. plug-in body; 11. side; 12. first plug-in part; 13. plane; 14. first slot; 15. second plug-in part; 151. guide surface; 16. notch; 2. pressing part; 3. connector; 31. limit part; 32. plug-in cavity. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0016] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0018] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0019] The TPA structure under the existing technology needs to be connected to the connector through an interference fit to achieve relative fixation with the connector. However, since the material of the TPA structure is relatively hard, a large friction force will be generated on both sides of the TPA structure during the interference fit, which will increase the wear on both sides of the TPA structure and reduce the size of the TPA. This will cause the TPA to become loose when connected to the connector, resulting in the inability to fix the TPA to the connector.

[0020] In order to solve the above problems, Figure 1 to Figure 2 As shown, the utility model provides a TPA structure, which includes a plug-in body 1, the plug-in body 1 is in the shape of a rectangular sheet, and the side surfaces 11 on both sides of the plug-in body 1 are protruded to form a first plug-in portion 12, and the first plug-in portion 12 is in contact with the connector 3 on both sides. A plane 13 is formed between the side edges of the plug-in body 1, and the plane 13 is provided with a first slot 14 on one side close to the side edge, which is projected perpendicular to the side surface 11, and the first plug-in portion 12 overlaps with the first slot 14.

[0021] A plug-in cavity 32 is formed on the upper side of the connector 3, and the TPA structure is plugged into the plug-in cavity 32. A limiting portion 31 is formed on the inner wall of the plug-in cavity 32. The limiting portion 31 is interference fit with the first plug-in portion 12, and the first plug-in portion 12 is in contact with the limiting portion 31. An installation area is formed on the side 11, and the limiting portion 31 is snapped into the installation area.

[0022] When the first plug-in parts 12 on both sides of the plug-in body 1 come into contact with the limiting parts 31, since the size between the limiting parts 31 is slightly smaller than the volume of the plug-in body 1, an interference fit will occur between the limiting parts 31 and the first plug-in parts 12. When the first plug-in part 12 comes into contact with the limiting parts 31, pressure will be generated on the TPA. At this time, since the first slot 14 is provided on the plug-in body 1, the first plug-in part 12 can be recessed toward the side of the first slot 14. Through the deformation of the plug-in body 1, the pressure between the first plug-in part 12 and the limiting parts 31 can be reduced, and the friction force generated during the contact between the first plug-in part 12 and the limiting parts 31 can be reduced, thereby reducing the wear of the first plug-in part 12 and extending the service life of the TPA structure. Then, the TPA structure is continuously pressed to allow the TPA structure to continue to penetrate into the connector 3, and finally the terminals in the connector 3 can be fixed.

[0023] The first slot 14 of the utility model is rectangular, and the length direction of the first slot 14 is the insertion direction of the TPA structure. The length of the first slot 14 is greater than the length of the first plug-in portion 12, which can provide sufficient deformation space for the first plug-in portion 12, so that the deformation amount of the first plug-in portion 12 toward the side of the first slot 14 after deformation is greater, thereby further reducing the friction force faced by the first plug-in portion 12, thereby extending the service life of the TPA.

[0024] The edge protrusion of the side surface 11 forms a second plug-in portion 15, and the second plug-in portion 15 is arranged on the lower side of the first plug-in portion 12. The second plug-in portion 15 abuts against the inner wall of the connector 3. When the limiting portion 31 stays in the area between the second plug-in portion 15 and the first plug-in portion 12, the TPA structure is in a pre-locked state, so that the TPA can be fixed on the connector 3 and the terminals inside the connector 3 are pre-fixed. If the TPA structure continues to be pressed, the first plug-in portion 12 contacts the limiting portion 31, and finally the limiting portion 31 is locked in the installation area between the first plug-in portion 12 and the pressing portion 2, so that the installation of the TPA structure is realized, and the TPA structure is in a completely locked state.

[0025] A guide surface 151 is formed on the outer side of the second plug-in portion 15 of the utility model. The included angle between the guide surface 151 and the side surface 11 is an acute angle. The side of the guide surface 151 close to the connector 3 is connected to the side surface 11. The guide surface 151 is an inclined surface. When the TPA structure contacts the limit portion 31, the limit portion 31 will first contact the guide surface 151. Then, since the guide surface 151 has a certain inclined angle, it is convenient for the TPA structure to be plugged into the limit, making the plug-in process more labor-saving. At the same time, the opening of the guide surface 151 can save wear and tear and extend the service life of the TPA structure.

[0026] A notch 16 is provided at the edge of the plug-in body 1, which is projected perpendicular to the side surface 11, and the second plug-in portion 15 overlaps with the notch 16. When the second plug-in portion 15 first contacts the limiting portion 31, deformation will occur, and then the second plug-in portion 15 will deform toward the notch 16, thereby reducing the pressure between the guide surface 151 on the second plug-in portion 15 and the limiting portion 31, thereby reducing the friction between the second plug-in portion 15 and the limiting portion 31, and further reducing wear.

[0027] A pressing portion 2 is formed on the upper side of the plug body 1 , and the pressing portion 2 is perpendicular to the plug body 1 . The pressing portion 2 is provided to facilitate an operator to press the TPA structure into place with fingers, so that the terminal in the connector 3 can be fixed.

[0028] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A TPA structure, characterized in that: The invention comprises a plug-in body (1), the plug-in body (1) is in the shape of a rectangular sheet, the side surfaces (11) on both sides of the plug-in body (1) are protruded to form a first plug-in portion (12), the first plug-in portion (12) is in contact with the connector (3) on both sides, a plane (13) is formed between the side edges of the plug-in body (1), the plane (13) is provided with a first slot (14) on one side close to the side edge, and is projected perpendicular to the side surface (11), the first plug-in portion (12) and the first slot (14) overlap.

2. The TPA structure according to claim 1, characterized in that The first slot hole (14) is rectangular, and the length of the first slot hole (14) is greater than the length of the first plug-in portion (12).

3. The TPA structure according to claim 1, characterized in that The edge protrusion of the side surface (11) forms a second plug-in portion (15), and the second plug-in portion (15) abuts against the inner wall of the connector (3).

4. The TPA structure according to claim 3, characterized in that A guide surface (151) is formed on the outer side of the second plug-in portion (15), and the included angle between the guide surface (151) and the side surface (11) is acute. The side of the guide surface (151) close to the connector (3) is in contact with the side surface (11).

5. The TPA structure according to claim 4, characterized in that A notch (16) is provided on the edge of the plug-in body (1), projected perpendicularly to the side surface (11), and the second plug-in portion (15) overlaps the notch (16).

6. The TPA structure according to claim 1, characterized in that A pressing portion (2) is formed on the upper side of the plug-in body (1), and the pressing portion (2) is perpendicular to the plug-in body (1).

7. A connector, characterized in that: It includes the TPA structure as described in claim 1, a plug-in cavity (32) is formed on the upper side of the connector (3), the TPA structure is plugged into the plug-in cavity (32), the inner wall of the plug-in cavity (32) forms a limiting portion (31), the limiting portion (31) and the first plug-in portion (12) are interference fit, the first plug-in portion (12) is in contact with the limiting portion (31), and an installation area is formed on the side surface (11), and the limiting portion (31) is snap-fitted into the installation area.

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