A contact conductive structure

Abstract

The application relates to a contact type conductive structure which comprises a circuit board, a needle shell, a conductive needle and a spring part, the needle shell is fixed on the circuit board, the conductive needle is arranged in the needle shell, through holes are formed in the upper and lower ends of the needle shell, the top of the conductive needle protrudes from the upper end of the needle shell under the elastic force of the spring part, and the bottom of the conductive needle extends out of the lower end of the needle shell and penetrates through the circuit board. The contact type conductive structure adopts the conductive needle to realize contact conduction, the whole conductive process is realized through the conductive needle, and the spring only provides elastic force for the conductive needle, so that the problems of spring heating, sparking and losing elastic force can be avoided.

Description

Technical Field

[0001] This utility model relates to a contact-type conductive structure. Background Technology

[0002] Currently, the most common contact conductive structures on the market use a retractable conductive cap for contact conductivity. The retraction function of the conductive cap is achieved by a spring, and the spring also needs to be part of the conductive circuit. Therefore, the contact point between the conductive cap and the spring is prone to problems such as excessive current, which can lead to problems such as the spring overheating, sparking, or losing its elasticity.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned problems. We provide a contact-type conductive structure that solves the problems of spring overheating and sparking.

[0005] To achieve the above objectives, this utility model provides a contact-type conductive structure, which includes a circuit board, a spring pin housing, a conductive spring pin, and a spring component. The spring pin housing is fixed to the circuit board, and the conductive spring pin is disposed inside the spring pin housing. Both the upper and lower ends of the spring pin housing have through holes. The top of the conductive spring pin protrudes from the upper end of the spring pin housing under the elastic force of the spring component, and the bottom of the conductive spring pin extends out from the lower end of the spring pin housing and passes through the circuit board.

[0006] In one or more embodiments, the circuit board has a fixing hole, the bottom of the spring pin housing has a plug-in portion that passes through the fixing hole, and the bottom of the conductive spring pin extends out of the plug-in portion.

[0007] In one or more embodiments, the spring pin housing is welded and fixed to the circuit board.

[0008] In one or more embodiments, a pressure edge is provided at the upper through hole of the spring needle shell, the conductive spring needle is provided with a raised step that abuts against the lower end of the pressure edge, the spring member is sleeved on the conductive spring needle, and the two ends of the spring member abut against the lower end of the raised step and the spring needle shell, respectively.

[0009] In one or more embodiments, the conductive spring needle and the spring needle housing are made of copper.

[0010] In one or more embodiments, the circuit board is provided with an insulating shell, and the spring pin housing is disposed inside the insulating shell.

[0011] In one or more embodiments, the circuit board is provided with positioning posts, and the insulating shell is sleeved on the positioning posts and tightly connected to the insulating shell.

[0012] In one or more embodiments, the surface of the spring element has an insulating coating.

[0013] Compared with the prior art, the advantages of this utility model are: the contact conductive structure uses a conductive spring pin for contact conduction, and the entire conduction process is carried out through the conductive spring pin. The spring only serves to provide elastic force to the conductive spring pin, thus avoiding problems such as spring overheating, sparking, and loss of elasticity. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the central axis of the conductive spring needle in this embodiment; Figure 2 for Figure 1 Enlarged view of A in the middle; Figure 3 This is a three-dimensional structural diagram of the circuit board and conductive spring pin in this embodiment. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] See appendix Figure 1-3 This application provides a contact-type conductive structure, which includes a circuit board 1, a spring-loaded housing 2, a conductive spring-loaded pin 3, and a spring member 4. The spring-loaded housing 2 is fixed on the circuit board 1, and the conductive spring-loaded pin 3 is disposed inside the spring-loaded housing 2. Both the upper and lower ends of the spring-loaded housing 2 have through holes. The top of the conductive spring-loaded pin 3 protrudes from the upper end of the spring-loaded housing 2 under the elastic force of the spring member 4. The bottom of the conductive spring-loaded pin 3 extends out from the lower end of the spring-loaded housing 2 and passes through the circuit board 1. After passing through the spring-loaded housing 2, the bottom of the conductive spring-loaded pin 3 can be directly connected to a conductive wire. The conductive wire can be soldered to the bottom of the conductive spring-loaded pin 3. In this embodiment, the circuit board plays a role in fixing the spring-loaded housing 2, and the conductive spring-loaded pin 3, as a complete conductor, does not need to rely on the spring member 4 as a carrier for circuit connection. Therefore, the spring member 4 will not have problems such as excessive current or sparking due to contact issues.

[0017] The circuit board 1 has a fixing hole, and the bottom of the spring pin housing 2 has a plug-in part 21 that passes through the fixing hole. The bottom of the conductive spring pin 3 extends out of the plug-in part 21. Connecting the plug-in part 21 to the fixing hole of the circuit board improves the structural stability of the spring pin housing 2 after installation on the circuit board. Furthermore, the plug-in part 21 guides the vertical extension and retraction of the conductive spring pin 3. The spring pin housing 2 is welded and fixed to the circuit board 1, resulting in high welding efficiency and good structural stability. The upper end of the spring needle housing 2 is provided with a pressing edge 5, and the conductive spring needle 3 is provided with a protrusion 6 that abuts against the lower end of the pressing edge 5. The cooperation between the pressing edge 5 and the protrusion 6 can prevent the conductive spring needle 3 from detaching from the spring needle housing 2. The spring member 4 is sleeved on the conductive spring needle 3, and the two ends of the spring member 4 abut against the lower end of the protrusion 6 and the spring needle housing 2 respectively.

[0018] The conductive spring needle 3 and the spring needle shell 2 are made of copper material, and both the copper conductive spring needle and the spring needle shell have good conductivity.

[0019] The circuit board 1 is provided with an insulating shell 7, and the spring needle shell 2 is located inside the insulating shell 7. The insulating shell can cover the outside of the spring needle shell 2 and prevent the spring needle shell 2 from coming into contact with other conductive materials and causing a short circuit.

[0020] The circuit board 1 is provided with a positioning post 8, and the insulating shell 7 is sleeved on the positioning post 8 and tightly connected to the insulating shell 7. The positioning post is used to fix the insulating shell after it is connected to the insulating shell, and at the same time to prevent the insulating shell from detaching from the spring needle shell.

[0021] The surface of the spring 4 has an insulating coating. Since the spring 4 does not act as a conductive carrier, insulating its surface can further improve electrical safety and effectively extend the service life of the spring.

[0022] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A contact-type conductive structure, characterized in that: The device includes a circuit board (1), a spring pin housing (2), a conductive spring pin (3), and a spring element (4). The spring pin housing (2) is fixed on the circuit board (1), and the conductive spring pin (3) is located inside the spring pin housing (2). Both the upper and lower ends of the spring pin housing (2) have through holes. The top of the conductive spring pin (3) protrudes from the upper end of the spring pin housing (2) under the elastic force of the spring element (4), and the bottom of the conductive spring pin (3) extends out from the lower end of the spring pin housing (2) and passes through the circuit board (1).

2. The contact-type conductive structure according to claim 1, characterized in that: The circuit board (1) has a fixing hole, and the bottom of the spring needle housing (2) is provided with a plug-in part (21) that passes through the fixing hole. The bottom of the conductive spring needle (3) extends out of the plug-in part (21).

3. A contact-type conductive structure according to claim 1 or 2, characterized in that: The outer shell (2) of the spring pin is welded and fixed to the circuit board (1).

4. The contact-type conductive structure according to claim 1, characterized in that: The upper end of the spring needle shell (2) is provided with a pressure edge (5), the conductive spring needle (3) is provided with a protrusion (6) that abuts against the lower end of the pressure edge (5), the spring member (4) is sleeved on the conductive spring needle (3), and the two ends of the spring member (4) abut against the lower end of the protrusion (6) and the spring needle shell (2) respectively.

5. A contact-type conductive structure according to claim 1, characterized in that: The conductive spring needle (3) and the spring needle shell (2) are made of copper.

6. The contact-type conductive structure according to claim 1, characterized in that: The circuit board (1) is provided with an insulating shell (7), and the spring needle shell (2) is located inside the insulating shell (7).

7. A contact-type conductive structure according to claim 6, characterized in that: The circuit board (1) is provided with a positioning post (8), and the insulating shell (7) is sleeved on the positioning post (8) and tightly connected to the insulating shell (7).

8. A contact-type conductive structure according to claim 1, characterized in that: The surface of the spring (4) has an insulating coating.

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