High-reliability conductive female terminal structure

Abstract

The utility model discloses a high-reliability conductive female terminal structure. According to the technical scheme, the female terminal comprises a female terminal body, the female terminal body comprises a cavity for a male terminal to be inserted, the top of the cavity is provided with a first elastic piece, a cantilever is formed on the portion, at the rear end of the cavity, of the first side wall of the cavity, the cantilever comprises a second elastic piece and a connecting part connected with the first elastic piece in a bent mode, and the second elastic piece is connected with the connecting part. The first elastic piece is horizontally arranged, the second elastic piece is vertically arranged, and the first elastic piece protrudes towards the front end of the cavity along the connecting part. The scheme provided by the utility model is high in reliability and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a high-reliability conductive female terminal structure. Background Technology

[0002] The connector's conductive female terminal includes a cavity structure into which the male terminal is inserted. The female terminal has a cantilevered first spring that extends within its cavity for elastic contact with the male terminal. A second spring is connected to the first spring, capable of limiting its position and increasing positive pressure. (See attached diagram.) Figure 1 However, in the existing technology, the first spring 3 and the second spring 5 on the female terminal are connected by the first and second spring connecting end, i.e. the connecting part 6, which is formed by stamping rather than blanking and bending. As a result, the first spring 3 and the second spring 5 have high internal stress, and the spring material may even yield, affecting the stability of the positive pressure after the terminal is inserted. In order to reduce the internal stress of the first spring 3 and the second spring 5 after forming as much as possible, the corresponding mold needs to have an adjustment structure, which makes the stamping mold structure complex and costly. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the main purpose of this utility model is to provide a highly reliable connector conductive female terminal structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-reliability conductive female terminal structure, including a female terminal body, the female terminal body including a cavity into which a male terminal can be inserted, a first spring piece being provided at the top of the cavity, a cantilever being formed on the first sidewall of the cavity at the rear end of the cavity, the cantilever including a second spring piece and a connecting portion that is bent to connect the first spring piece, the first spring piece being arranged horizontally, the second spring piece being arranged vertically, and the first spring piece being extended along the connecting portion toward the front end of the cavity.

[0005] Preferably, the female terminal body is further provided with a top wall above the first spring piece. The top wall is formed by extending upward from the second side wall of the cavity and bending it. The end of the top wall is located above the first side wall. The end of the top wall protrudes downward and is provided with a first spring piece limiting baffle and a second spring piece limiting baffle. The first spring piece limiting baffle is located on the side of the first spring piece, and the second spring piece limiting baffle is located directly above the projection of the second spring piece and can abut against the second spring piece.

[0006] Preferably, the top wall includes an inclined surface, and the inner wall of the inclined surface is provided with a protrusion that can abut against the first spring piece above the first end of the spring piece.

[0007] Preferably, a limiting hole is formed on the second sidewall near the first spring piece, and a limiting block extending into the limiting hole is provided at the leading end of the first spring piece.

[0008] Preferably, both the limiting hole and the limiting block are rectangular in shape.

[0009] Preferably, the first sidewall of the cavity has a notch at the front end of the cavity, and the top wall has a side protective piece that protrudes downward into the notch at the end of the cavity, and a side gap is formed between the side protective piece and the notch.

[0010] This invention has the following advantages over the prior art: the first and second spring sheets are formed by blanking and bending; the first spring sheet, the connecting part, and the second spring sheet are linearly arranged as a whole; the internal stress of the spring sheets is small; the normal pressure provided after deformation of the spring sheets is highly adjustable and reliable; and the corresponding stamping die structure is simple and low in cost. The first spring sheet is located in the middle of the cavity and directly contacts the inserted male terminal, providing a vertical elastic clamping force. The cantilevered second spring sheet is connected to the first spring sheet through the connecting part and moves in conjunction with the first spring sheet when the male terminal is inserted. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the first and second spring contacts on a conductive female terminal in the prior art.

[0012] Figure 2 This is a schematic diagram of a high-reliability conductive female terminal structure according to the present invention. Figure 1 ;

[0013] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0014] Figure 4 This is a schematic diagram of a high-reliability conductive female terminal structure according to the present invention. Figure 2 ;

[0015] Figure 5 for Figure 4 Enlarged structural diagram of section A in the middle;

[0016] Figure 6 This is a schematic diagram of a high-reliability conductive female terminal structure according to the present invention. Figure 3 ;

[0017] Figure 7 for Figure 6 Enlarged structural diagram of section A in the middle.

[0018] In the figure: 1. Female terminal body; 2. Cavity; 3. First spring piece; 4. First side wall; 5. Second spring piece; 6. Connecting part; 7. Second side wall; 8. First spring piece limiting stop; 9. Second spring piece limiting stop; 10. Inclined surface; 11. Protrusion; 12. Limiting hole; 13. Limiting block; 14. Side protection plate; 15. Side gap; 16. Top wall. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, a high-reliability conductive female terminal structure includes a female terminal body 1. The female terminal body 1 includes a cavity 2 for inserting a male terminal. A first spring piece 3 is provided on the top of the cavity 2. A cantilever is formed on the first sidewall 4 of the cavity 2 at the rear end of the cavity 2. The cantilever includes a second spring piece 5 and a connecting portion 6 that is bent to connect the first spring piece 3. The first spring piece 3 is arranged horizontally, and the second spring piece 5 is arranged vertically. The first spring piece 3 protrudes along the connecting portion 6 towards the front end of the cavity 2.

[0021] This solution presents a high-reliability conductive female terminal structure. Compared to existing technologies, the first spring 3 and the second spring 5 are formed by blanking and bending. The first spring 3, the connecting part 6, and the second spring 5 are arranged linearly as a whole. The internal stress of the springs is small, and the positive pressure provided after the springs are deformed has good adjustability and high reliability. The corresponding stamping die structure is simple and low in cost. The first spring 3 is located in the middle of the cavity 2 and directly contacts the inserted male terminal, providing elastic clamping force in the vertical direction. The cantilevered second spring 5 is connected to the first spring 3 through the connecting part 6. When the male terminal is inserted, it moves in conjunction with the first spring 3 to further improve the elastic clamping force in the vertical direction. The elastic clamping force, i.e., the positive pressure, is high and has good stability.

[0022] Preferably, the female terminal body 1 is further provided with a top wall 16 above the first spring piece 3. The top wall 16 is formed by extending upward from the second side wall 7 of the cavity 2 and bending it. The end of the top wall 16 is located above the first side wall 4. The end of the top wall 16 is provided with a first spring piece limiting baffle 8 and a second spring piece limiting baffle 9 protruding downward. The first spring piece limiting baffle 8 is located on the side of the first spring piece 3, and the second spring piece limiting baffle 9 is located directly above the projection of the second spring piece 5 and can abut against the second spring piece 5.

[0023] The first spring plate limiting stop 8 is located on the side of the first spring plate 3 and provides lateral protection during the upward movement of the first spring plate 3. The second spring plate limiting stop 9 can abut against the second spring plate 5 during the upward movement of the second spring plate 5 to prevent the second spring plate 5 from being excessively deformed.

[0024] Preferably, the top wall 16 includes an inclined surface 10, and a protrusion 11 capable of abutting against the first spring 3 is provided on the inner wall of the inclined surface 10 above the first end of the first spring 3.

[0025] The convex 11 is provided to support the first spring 3 when it deforms and moves upward. The convex 11 of the inclined surface 10 of the top wall 16 abuts against the head end of the first spring 3, providing additional downward pressure and enhancing the tightness of contact.

[0026] Preferably, a limiting hole 12 is formed on the second sidewall 7 near the first spring piece 3, and a limiting block 13 extending into the limiting hole 12 is provided at the leading end of the first spring piece 3. Preferably, both the limiting hole 12 and the limiting block 13 are rectangular in shape.

[0027] The limiting block 13 of the first spring piece 3 extends into the rectangular limiting hole 12 of the second side wall 7, providing support for the first spring piece 3 when it deforms upward, while preventing the first spring piece 3 from moving downward. The rectangular limiting hole 12 is designed to limit the range of motion of the first spring piece 3 in the up and down and left and right directions.

[0028] Preferably, the first sidewall 4 of the cavity 2 has a notch at the front end of the cavity 2, and the top wall 16 has a side protective plate 14 protruding downward at the end and extending into the notch, and a side gap 15 is formed between the side protective plate 14 and the notch.

[0029] The side protective plate 14 serves to guide the female terminal when it is inserted into the plastic shell, and the side gap is used to provide a buffer against deformation of the guide protective plate.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high-reliability conductive female terminal structure, comprising a female terminal body, the female terminal body including a cavity for insertion of a male terminal, the top of the cavity being provided with a first spring tab, characterized in that: The first sidewall of the cavity has a cantilever formed at the rear end of the cavity. The cantilever includes a second spring and a connecting part that is bent to connect the first spring. The first spring is arranged horizontally, the second spring is arranged vertically, and the first spring protrudes along the connecting part towards the front end of the cavity.

2. The high-reliability conductive female terminal structure according to claim 1, characterized in that: The female terminal body is also provided with a top wall above the first spring piece. The top wall is formed by extending upward from the second side wall of the cavity and bending it. The end of the top wall is located above the first side wall. The end of the top wall protrudes downward and is provided with a first spring piece limiting baffle and a second spring piece limiting baffle. The first spring piece limiting baffle is located on the side of the first spring piece, and the second spring piece limiting baffle is located directly above the projection of the second spring piece and can abut against the second spring piece.

3. The high-reliability conductive female terminal structure according to claim 2, characterized in that: The top wall includes an inclined surface, and a protrusion that can abut against the first spring is provided on the inner wall of the inclined surface above the first end of the spring.

4. The high-reliability conductive female terminal structure according to claim 3, characterized in that: A limiting hole is formed on the second sidewall near the first spring piece, and a limiting block is provided at the leading end of the first spring piece that extends into the limiting hole.

5. The high-reliability conductive female terminal structure according to claim 4, characterized in that: Both the limiting hole and the limiting block are rectangular in shape.

6. The high-reliability conductive female terminal structure according to claim 2, characterized in that: The first sidewall of the cavity has a notch at the front end of the cavity, and the top wall has a side protective plate that protrudes downward into the notch at the end of the cavity, forming a side gap between the side protective plate and the notch.

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