Precise connector and elastic terminal thereof

Abstract

The utility model discloses an elastic terminal, which comprises a contact part, an elastic part, a body part and a welding part which are integrally formed and connected, a first clamping point is convexly arranged on one side of the body part, a second clamping point is convexly arranged on the other side of the body part, and the position of the second clamping point is higher than or lower than that of the first clamping point. According to the connector, the first clamping point and the second clamping point are arranged on the two sides of the body part in the protruding mode, after the connector is assembled and formed, the first clamping point and the second clamping point are both buried in the insulating body, in the elastic deformation process of the elastic terminal, the first clamping point, the second clamping point and the insulating body are jointly matched to provide interference for the elastic terminal, the elastic terminal is effectively prevented from rotating, and the connector is prevented from being damaged. The position of the second clamping point is higher than or lower than the position of the first clamping point, and the two clamping points are not located on the same horizontal plane, so that two interference forces can be provided for the elastic terminal, the elastic terminal is further prevented from rotating, it is ensured that the elastic terminal makes contact with the terminal of the male head in place, and the phenomenon that the two terminals are staggered does not occur.

Description

Technical Field

[0001] The utility model relates to the technology of connector field, in particular to a precision connector and an elastic terminal thereof. Background Art

[0002] Connectors are also called connectors, and in China they are also called joints and sockets. They generally refer to electrical connectors, that is, devices that connect two active devices to transmit current or signals. The male end and the female end can transmit information or current after contact, and are also called connectors. Connectors can simplify the assembly process of electronic products and improve the production efficiency of products. At the same time, if an electronic component fails, products equipped with connectors can quickly replace the failed components. Moreover, with the advancement of technology, components with upgraded technology can be directly connected to connectors, and newer and more complete components can be used to replace old ones. When engineers design and integrate new products, the existence of connectors provides them with greater flexibility in their design ideas.

[0003] During the use of connectors, they will be plugged and unplugged many times. During the plugging and unplugging process, the terminals will wear and tear, shortening the service life of the connector. Later, some manufacturers used elastic contact to reduce the wear of the terminals. Although the elastic contact between the terminals can reduce the loss of the terminals, the terminals will undergo elastic deformation during the plugging process. During the elastic deformation process, the terminals may rotate, resulting in the terminals not being in contact or even staggered after the two connectors are plugged in. Therefore, it is necessary to improve the existing connectors. Utility Model Content

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a precision connector and its elastic terminal, which can effectively solve the problem that the existing elastic terminals rotate during elastic deformation, resulting in poor contact or even misalignment between the terminals.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A spring terminal comprises a contact portion, an elastic portion, a main body portion and a welding portion which are integrally formed and connected; a first clamping point is convexly provided on one side of the main body portion, and a second clamping point is convexly provided on the other side of the main body portion, wherein the position of the second clamping point is higher or lower than the position of the first clamping point.

[0007] As a preferred solution, the main body is provided with an empty slot, which is located inside the elastic part. The design of the empty slot makes the elastic part more elastic, which is beneficial to the elastic recovery of the terminal.

[0008] As a preferred solution, the contact portion and the elastic portion are configured to form an elastic groove, so that the contact portion has a certain elasticity.

[0009] As a preferred solution, a support portion extending downward is formed on the inner side of the lower end of the main body.

[0010] A precision connector includes a circuit board, an insulating body and a plurality of the aforementioned elastic terminals; the circuit board has a plurality of pads; the insulating body is arranged on the circuit board, and the insulating body has a plurality of terminal slots; the plurality of elastic terminals are respectively arranged in corresponding terminal slots, the contact portion extends outward from the terminal slot, the welding portion is welded and fixed to the corresponding pads, and the first clamping point and the second clamping point are buried in the insulating body.

[0011] As a preferred solution, a positioning hole is provided on the circuit board, and a positioning post extends downward from the bottom of the insulating body. The positioning post is inserted into the positioning hole and fixed, so that the assembly of the insulating body and the circuit board is more precise.

[0012] As a preferred solution, there are two positioning holes, one of which is located on the left side of the circuit board and the other is located on the right side of the circuit board. Correspondingly, there are also two positioning posts, one of which extends downward from the left side of the bottom of the insulating body and the other extends downward from the right side of the bottom of the insulating body.

[0013] As a preferred solution, a limiting groove for cooperating with a male head for limiting position is provided on the side surface of the insulating body.

[0014] As a preferred solution, a plurality of the limiting grooves are arranged at intervals on the left and right.

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0016] By protruding the first clamping point and the second clamping point on both sides of the main body, after the connector is assembled, the first clamping point and the second clamping point are buried in the insulating body. During the elastic deformation of the elastic terminal, the first clamping point, the second clamping point and the insulating body cooperate with each other to provide interference to the elastic terminal, effectively preventing the elastic terminal from rotating. In addition, the position of the second clamping point is higher or lower than the position of the first clamping point, and the two clamping points are not on the same horizontal plane. Two interference forces can be provided to the elastic terminal, further preventing the elastic terminal from rotating, ensuring that the terminal of the male head is in contact with it, and the two terminals will not be misaligned.

[0017] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an assembly stereogram of a preferred embodiment of the utility model;

[0019] Figure 2 It is an exploded view of a preferred embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of a preferred embodiment of the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the elastic terminal in the preferred embodiment of the utility model.

[0022] Description of the accompanying drawings:

[0023] 10. Circuit board 11. Solder pad

[0024] 12. Positioning hole 20, insulation body

[0025] 21. Terminal slot 22. Positioning column

[0026] 30. Elastic terminal 301. Elastic slot

[0027] 31. Contact portion 32. Elastic portion

[0028] 33. Main body 331. First clamping point

[0029] 332, second card point 333, empty slot

[0030] 34. Welding portion 35. Support portion. DETAILED DESCRIPTION

[0031] Please refer to Figures 1 to 4 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a circuit board 10, an insulating body 20 and a plurality of elastic terminals 30.

[0032] The circuit board 10 has a plurality of pads 11 . In the present embodiment, the circuit board 10 has two positioning holes 12 , one of which is located on the left side of the circuit board 10 and the other is located on the right side of the circuit board 10 .

[0033] The insulating body 20 is arranged on the circuit board 10, and a plurality of terminal slots 21 are provided on the insulating body 20. In the present embodiment, a positioning column 22 extends downward from the bottom of the insulating body 20, and the positioning column 22 is inserted into the positioning hole 12 for fixing, so that the assembly of the insulating body 20 and the circuit board 10 is more precise. There are two positioning columns 22, one of which extends downward from the left side of the bottom of the insulating body 20, and the other extends downward from the right side of the bottom of the insulating body 20. In addition, a limiting groove 23 for cooperating with a male head is provided on the side surface of the insulating body 20, and a plurality of the limiting grooves 23 are arranged at intervals on the left and right.

[0034] The multiple elastic terminals 30 are respectively arranged in the corresponding terminal slots 22, and the multiple terminals 30 all include a contact portion 31, an elastic portion 32, a main body portion 33 and a welding portion 34 that are integrally formed and connected; the contact portion 31 extends outward from the terminal slot 22, a first clamping point 331 is convexly provided on one side of the main body portion 33, and a second clamping point 332 is convexly provided on the other side of the main body portion 33, and the position of the second clamping point 332 is higher or lower than the position of the first clamping point 331, the first clamping point 331 and the second clamping point 332 are buried in the insulating body 20, and the welding portion 34 is welded and fixed to the corresponding pad 11. In this embodiment, the main body portion 33 is provided with a hollow groove 333, and the hollow groove 333 is located on the inner side of the elastic portion 32. The hollow groove 331 design makes the elastic portion 32 more elastic, which is beneficial to the elastic recovery of the terminal; and the contact portion 31 and the elastic portion 32 are surrounded to form an elastic groove 301, so that the contact portion 31 has a certain elasticity; in addition, a support portion 35 extending downward is formed on the inner side of the lower end of the main body portion 33, and the upper end of the support portion 35 is in contact with the insulating body 20, and the lower end of the support portion 35 is in contact with the surface of the circuit board 20.

[0035] The assembly process of this embodiment is described in detail as follows:

[0036] First, multiple elastic terminals 30 are placed in a mold, and the insulating body 20 is formed by injection molding. The contact portion 31 extends outward from the terminal slot 22, and the first clamping point 331 and the second clamping point 332 are buried in the insulating body 20. Then, the insulating body 20 is installed on the circuit board 10, and the positioning column 22 is inserted into the positioning hole 12 for fixing. Then, the welding portions 34 of the multiple elastic terminals 30 are welded on the pad 11.

[0037] The design focus of the utility model is that: by protruding a first clamping point and a second clamping point on both sides of the main body, after the connector is assembled and formed, the first clamping point and the second clamping point are both buried in the insulating body, and during the elastic deformation of the elastic terminal, the first clamping point, the second clamping point and the insulating body cooperate with each other to provide interference to the elastic terminal, effectively preventing the elastic terminal from rotating, and the position of the second clamping point is higher or lower than the position of the first clamping point, and the two clamping points are not on the same horizontal plane, which can provide two interference forces for the elastic terminal, further preventing the elastic terminal from rotating, ensuring that the terminal of the male head is in contact with the male head, and the phenomenon of the two terminals being misaligned will not occur.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An elastic terminal, comprising a contact portion, an elastic portion, a body portion and a welding portion integrally formed and connected; characterized in that: A first clamping point is convexly provided on one side of the main body, and a second clamping point is convexly provided on the other side of the main body. The position of the second clamping point is higher or lower than the position of the first clamping point.

2. The elastic terminal according to claim 1, characterized in that: The main body is provided with an empty slot, and the empty slot is located inside the elastic part.

3. The elastic terminal according to claim 1, characterized in that: The contact portion and the elastic portion surround and form an elastic groove.

4. The elastic terminal according to claim 1, characterized in that: A support portion extending downward is formed on the inner side of the lower end of the main body.

5. A precision connector, characterized in that: It includes a circuit board, an insulating body and a plurality of elastic terminals as described in any one of claims 1 to 4; the circuit board has a plurality of soldering pads; the insulating body is arranged on the circuit board, and the insulating body has a plurality of terminal slots; the plurality of elastic terminals as described in any one of claims 1 to 4 are respectively arranged in corresponding terminal slots, the contact portion extends outward from the terminal slot, the welding portion is welded and fixed to the corresponding soldering pad, and the first clamping point and the second clamping point are buried in the insulating body.

6. The precision connector according to claim 5, characterized in that: A positioning hole is provided on the circuit board, and a positioning column extends downward from the bottom of the insulating body. The positioning column is inserted into the positioning hole and fixed.

7. The precision connector according to claim 6, characterized in that: There are two positioning holes, one of which is located on the left side of the circuit board and the other is located on the right side of the circuit board. Correspondingly, there are also two positioning posts, one of which extends downward from the left side of the bottom of the insulating body and the other extends downward from the right side of the bottom of the insulating body.

8. The precision connector according to claim 5, characterized in that: A limiting groove for cooperating with the male head and limiting the position is provided on the side surface of the insulating body.

9. The precision connector according to claim 8, characterized in that: The limiting grooves are arranged in a plurality of intervals on the left and right sides.

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