Enameled wire terminal

Abstract

According to the technical scheme, the enameled wire terminal is characterized in that the enameled wire terminal comprises a body and a bending part, the bending part comprises two groups of bending arms and a bending end, the bending arms are arranged in a U-shaped structure, one ends of the two bending arms are connected with the body, and the other ends of the two bending arms are connected with the bending end; a clamping cavity, a piercing area and a cavity area are formed between the two bent arms, the cavity area is arranged at the bent position of the bent arms, the clamping cavity, the piercing area and the cavity area are sequentially arranged in the height direction of the bent arms, the enameled wire terminal can improve the piercing success rate, and piercing stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of connecting devices, and more specifically, to an enameled wire terminal. Background Art

[0002] The connection and disconnection between the enameled coil and the outside world is achieved through the cooperation between the connector at the enameled wire end and the matching structure at the outside world. The terminal of the wire end connector generally achieves electrical conduction with the conductive layer of the wire by piercing the wire, and achieves conduction by clamping or inserting the terminal of the board end connector.

[0003] The connection between the terminal and the enameled wire usually requires stripping the winding wire paint layer before welding. This method is prone to oxidation, and the operation is complicated, inefficient, and it is easy to strip the enameled wire by mistake, resulting in the scrapping of the enameled wire.

[0004] The piercing terminal usually directly pierces the outer paint of the enameled wire and directly connects to the wire to achieve conduction, which can effectively prevent problems such as oxidation and cold soldering during welding.

[0005] However, current piercing terminals usually have a low piercing success rate and may even pinch or break the enameled wire, thereby affecting the connection reliability between the terminal and the wire. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an enameled wire terminal, which can improve the success rate of puncture and ensure the stability of puncture.

[0007] To achieve the above object, the utility model provides the following technical solution: an enameled wire terminal, comprising a body and a bending portion, wherein the bending portion comprises a bending arm and a bending end, wherein two groups of the bending arms are provided, and both are arranged in a U-shaped structure, wherein one end of the two bending arms is connected to the body, and the other end is connected to the bending end;

[0008] A clamping cavity, a puncture area, and a cavity area are formed between the two bending arms. The cavity area is arranged at the bending position of the bending arm. The clamping cavity, the puncture area, and the cavity area are arranged in sequence along the height direction of the bending arm.

[0009] In summary, the utility model has the following beneficial effects: the thickness of the bent portion is smaller than the thickness of the main body, and the bending arm is used to reduce the effect of deformation force when the enameled wire is clamped into the terminal, so that the piercing area can pierce the paint layer of the enameled wire without pinching or breaking the enameled wire.

[0010] The piercing area is used to pierce the paint layer of the enameled wire when the enameled wire is inserted into the terminal; the cavity area is used to mate with the boss of the plastic shell after being installed into the plastic shell, so that the enameled wire can have an upward force to ensure that it is inserted into the piercing area and finally reaches the clamping cavity; the clamping cavity is designed above the piercing area, mainly for fixing the enameled wire after the enameled wire is inserted into the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of the enameled wire terminal;

[0012] Figure 2 It is a schematic diagram of the three-dimensional structure on the back side of the enameled wire terminal.

[0013] Figure numerals: 1. main body; 11. concave surface; 12. second barb; 13. boss; 14. limiting groove; 2. bending portion; 21. clamping cavity; 22. puncture area; 23. cavity area; 3. bending arm; 31. first arm; 32. second arm; 33. guide slope; 34. first barb; 4. bending end; 5. plug connector; 51. chamfered surface; 6. gradient portion; 7. protrusion. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0015] Reference Figure 1 and Figure 2 As shown, in order to achieve the above purpose, the utility model provides the following technical solutions: an enameled wire terminal, comprising a body 1 and a bending portion 2, the bending portion 2 comprising a bending arm 3 and a bending end 4, two groups of bending arms 3 are provided, and both are arranged in a U-shaped structure, one end of the two bending arms 3 is connected to the body 1, and the other end is connected to the bending end 4;

[0016] A clamping cavity 21, a puncturing area 22, and a cavity area 23 are formed between the two bending arms 3. The cavity area 23 is arranged at the bending position of the bending arm 3. The clamping cavity 21, the puncturing area 22, and the cavity area 23 are arranged in sequence along the height direction of the bending arm 3.

[0017] In the design of the utility model, the thickness of the bending portion 2 is smaller than the thickness of the main body 1, and the bending arm 3 is used to reduce the effect of deformation force when the enameled wire is clamped into the terminal, so that the piercing area 22 can pierce the paint layer of the enameled wire without pinching or breaking the enameled wire.

[0018] Among them, the piercing area 22 is used to pierce the paint layer of the enameled wire when the enameled wire is inserted into the terminal; the cavity area 23 is used to match with the boss of the plastic shell after being loaded into the plastic shell, so that the enameled wire can have an upward force to ensure that it is inserted into the piercing area 22 and finally reaches the clamping cavity 21; the clamping cavity 21 is designed above the piercing area 22, mainly for fixing the enameled wire after the enameled wire is inserted into the terminal.

[0019] Furthermore, the bending arms 3 are symmetrically arranged along the center line of the body 1 .

[0020] The bending arm 3 includes a first arm 31 close to the body 1 and a second arm 32 close to the bending end 4. The outer sides of the two first arms 31 are both provided with guiding inclined surfaces 33, which play a guiding role during the insertion process.

[0021] The outer sides of the two second arms 32 are both provided with first barbs 34. Figure 1 As shown, the first barb 34 is arranged in a right triangle shape with the inclined surface facing downward, which has a guiding function and can also cooperate with the groove design of the coil plastic shell to ensure that the terminal is easily inserted into the width direction of the coil plastic shell and is clamped after being inserted into place.

[0022] The bent end 4 is arranged in an L-shaped structure. The design of this structure is mainly to clamp the terminal in the plastic housing after the terminal is installed in the matching plastic housing and the enameled wire is clamped, so that the terminal is not easy to be pulled out from the plastic housing.

[0023] The upper end of the body 1 is provided with a plug connector 5, and the four sides of the plug connector 5 are all provided with chamfered surfaces 51. The head position helps to guide the terminal when it is mated with the plug connector, making it easy to insert.

[0024] The lower end of the body 1 is provided with a gradual change portion 6 with a gradually decreasing thickness. This structural design can make the terminal insertion smoother and has a guiding effect. Furthermore, the gradual change portion 6 can be composed of multiple inclined surfaces.

[0025] Concave surfaces 11 are provided on both sides of the body 1 in the thickness direction.

[0026] The body 1 is provided with a second barb 12 on one side away from the bent portion 2. This structural design can limit the terminal in the upper and lower directions of the plastic shell after being inserted into the corresponding hole of the plastic shell.

[0027] A boss 13 is provided on one side of the body 1 in the width direction, and limiting grooves 14 are provided on both sides of the body 1 in the width direction. The limiting grooves 14 are located below the boss 13 .

[0028] like Figure 1As shown, the limiting groove 14 is located between the protrusion 7 and the boss 13. During the insertion process, the protrusion 7 and the boss 13 can work together to limit the left and right positions of the plastic housing.

[0029] In summary, the enameled wire terminal can improve the puncture success rate and ensure the stability of puncture.

[0030] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An enameled wire terminal, characterized in that: It comprises a body (1) and a bending portion (2), wherein the bending portion (2) comprises a bending arm (3) and a bending end (4), wherein two groups of the bending arms (3) are provided and both are arranged in a U-shaped structure, wherein one end of the two bending arms (3) is connected to the body (1), and the other end is connected to the bending end (4); A clamping cavity (21), a puncturing area (22), and a cavity area (23) are formed between the two bending arms (3); the cavity area (23) is arranged at the bending position of the bending arm (3); and the clamping cavity (21), the puncturing area (22), and the cavity area (23) are arranged in sequence along the height direction of the bending arm (3).

2. The enameled wire terminal according to claim 1, characterized in that: The bending arm (3) comprises a first arm (31) close to the main body (1) and a second arm (32) close to the bending end (4), and guide slopes (33) are arranged on the outer sides of the two first arms (31).

3. The enameled wire terminal according to claim 2, characterized in that: The outer sides of the two second arms (32) are each provided with a first barb (34).

4. The enameled wire terminal according to claim 1, characterized in that: The bent end (4) is arranged in an L-shaped structure.

5. The enameled wire terminal according to claim 1, characterized in that: A plug connector (5) is provided at the upper end of the body (1), and chamfered surfaces (51) are provided on four sides of the plug connector (5).

6. The enameled wire terminal according to claim 1, characterized in that: Concave surfaces (11) are provided on both sides of the body (1) in the thickness direction.

7. The enameled wire terminal according to claim 1, characterized in that: A second barb (12) is provided on a side of the body (1) away from the bent portion (2).

8. The enameled wire terminal according to claim 1, characterized in that: A boss (13) is provided on one side of the body (1) in the width direction, and limiting grooves (14) are provided on both sides of the body (1) in the width direction, wherein the limiting grooves (14) are located below the boss (13).

9. An enameled wire terminal according to any one of claims 1 to 8, characterized in that: The thickness of the bent portion (2) is smaller than the thickness of the main body (1).

10. The enameled wire terminal according to claim 9, characterized in that: The lower end of the body (1) is provided with a gradual portion (6) whose thickness gradually decreases.

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