Highly reliable electrical connector suitable for frequent line changes

Abstract

The utility model discloses a high reliable electric connector suitable for frequently changing circuit, including plug and socket, the plug includes plug shell and plug contact piece, and the socket includes socket shell and socket contact piece, the plug still includes clamping column, compression spring and clamping cover, one end of clamping column is connected with plug contact piece, and the other end of clamping column is equipped with a plurality of elastic clamping piece, the outer wall surface of a plurality of elastic clamping piece forms a conical surface in common, and the inner wall surface forms a clamping hole in common, clamping cover is sleeved in clamping column outward, compression spring is sleeved in clamping column outward and is located between clamping cover and plug contact piece, and clamping cover can be shrunk outside a plurality of elastic clamping piece under the elastic force of compression spring. The utility model can realize the quick reliable connection and quick disassembly of wire, and because the elastic life of compression spring is much longer than the elastic life of the elastic piece of jack structure, still contacts reliably after long -term use, and it is favorable to improve test reliability.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to a highly reliable electrical connector suitable for frequent circuit changes. Background Technology

[0002] Electrical connectors are fundamental components for the transmission of current or signals between electronic system devices, and are widely used in aerospace, communication base stations, computers, automotive electronics, rail transportation, and national defense and military systems.

[0003] Electrical connectors generally consist of a socket (fixed end) and a plug (free end) that interlock. In laboratory applications, the plug needs to connect to the component under test. For experiments requiring frequent testing of different components, frequent circuit changes are often necessary, meaning the component's wires need to be frequently connected and disconnected from the plug. To facilitate quick wire replacement, traditional electrical connectors typically use a crimp connection between the plug and wires. This structure has the following drawbacks: Since crimping also uses a spring-loaded contact, its contact reliability decreases with frequent use, leading to poor contact and potentially causing misjudgments of component performance, thus reducing test reliability. Furthermore, the pins and sockets of traditional electrical connectors are generally crimped with a spring-loaded structure, which can also lead to poor contact after long-term use; the connecting ring on the plug and the socket housing are generally connected by threads, resulting in low assembly and disassembly efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a highly reliable electrical connector suitable for frequent circuit changes in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A highly reliable electrical connector suitable for frequent circuit changes includes a plug and a socket. The plug includes a plug housing and a plug contact installed within the plug housing. The socket includes a socket housing and a socket contact installed within the socket housing. The plug housing and the socket housing are interconnected, and the plug contact and the socket contact are interconnected. The plug also includes a clamping post, a compression spring, and a clamping sleeve. One end of the clamping post is connected to the plug contact, and the other end of the clamping post extends outside the plug housing and is provided with a plurality of elastic clamping pieces distributed circumferentially. One end of each of the plurality of elastic clamping pieces is integrally formed with the clamping post, and the other end is suspended. The outer wall surfaces of the plurality of elastic clamping pieces together form a conical surface, and the inner wall surfaces together form a clamping hole. The cylindrical clamping sleeve is fitted outside the clamping post. The compression spring is fitted outside the clamping post and located between the clamping sleeve and the plug contact. The clamping sleeve can be fitted outside the plurality of elastic clamping pieces under the elastic force of the compression spring, causing the plurality of elastic clamping pieces to retract inward.

[0006] Preferably, in order to facilitate quick insertion of wires, the inner walls of the suspended ends of the multiple elastic clamping pieces are provided with conical surfaces and together form a conical hole that is larger on the outside and smaller on the inside.

[0007] Preferably, in order to facilitate the positioning of the compression spring and reliably compress the compression spring, the clamping sleeve has a convex ring that protrudes outward in the circumferential direction at one end near the compression spring.

[0008] Preferably, for ease of connection, the plug contact is a socket, one end of the clamping post is placed in the corresponding end hole of the plug contact, and the socket contact is a pin.

[0009] Preferably, in order to reliably connect the plug contact and the socket contact and improve service life, a crown spring is installed on the inner wall of the end of the plug contact that is connected to the socket contact.

[0010] Preferably, to facilitate quick connection and disassembly between the plug housing and the socket housing, the plug housing is fitted with a connecting ring. The inner circumference of the connecting ring near the socket has a spiral groove. The outer circumference of the socket housing near the plug has one or more locking pins. The locking pins are placed in the groove to achieve connection between the plug housing and the socket housing.

[0011] The beneficial effects of this utility model are as follows: This invention involves installing a clamping post on the plug, with elastic clamping plates on the clamping post. A compression spring and a clamping sleeve are installed on the clamping post. The spring force positions the clamping sleeve outside the multiple elastic clamping plates, compressing the wire and achieving a quick and reliable connection. Disassembly simply requires pushing the clamping sleeve to overcome the spring force and move it away from the elastic clamping plates. The elastic clamping plates then open under their own elasticity to release the wire, enabling quick disconnection. Furthermore, because the elastic lifespan of the spring is much longer than that of the elastic plates in the socket structure, the connector of this invention maintains reliable contact even after long-term use, improving testing reliability. Attached Figure Description

[0012] Figure 1 This is a perspective view of the plug and socket of the high-reliability electrical connector for frequently modified circuits described in this utility model before assembly; Figure 2 This is a front sectional view of the plug of the high-reliability electrical connector for frequently modified circuits described in this utility model; Figure 3 This is a perspective view of the clamping post, compression spring, and clamping sleeve of the high-reliability electrical connector for frequently modified circuits described in this utility model before assembly; Figure 4 This is a front sectional view of the socket for a high-reliability electrical connector suitable for frequent circuit changes, as described in this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-4As shown, the high-reliability electrical connector for frequently modified circuits of this utility model includes a plug 1 and a socket 2. The plug 1 includes a plug housing 13 and plug contacts 12 (the number of plug contacts 12 is determined according to actual needs) installed in the plug housing 13. The socket 2 includes a socket housing 21 and socket contacts 24 (the number of socket contacts 24 is determined according to actual needs) installed in the socket housing 21. The plug housing 13 and the socket housing 21 are interconnected, and the plug contacts 12 and the socket contacts 24 are interconnected. The plug 1 also includes a clamping post 15, a compression spring 11, and a clamping sleeve 10. One end of the clamping post 15 is connected to the plug. The contact 12 is connected, and the other end of the clamping post 15 extends out of the plug housing 13 and is provided with a plurality of elastic clamping pieces 19 distributed in the circumferential direction. One end of each elastic clamping piece 19 is integrally formed with the clamping post 15 and the other end is suspended. The outer wall surface of the plurality of elastic clamping pieces 19 forms a conical surface and the inner wall surface forms a clamping hole. The cylindrical clamping sleeve 10 is fitted on the outside of the clamping post 15. The compression spring 11 is fitted on the outside of the clamping post 15 and is located between the clamping sleeve 10 and the plug contact 12. The clamping sleeve 10 can be fitted on the outside of the plurality of elastic clamping pieces 19 under the elastic force of the compression spring 11 and cause the plurality of elastic clamping pieces 19 to retract inward.

[0014] like Figures 1-4 As shown, this utility model also discloses the following more optimized specific structures: To facilitate quick insertion of wires, the inner walls of the suspended ends of multiple elastic clamping pieces 19 are provided with conical surfaces, which together form a conical hole that is larger on the outside and smaller on the inside.

[0015] To facilitate the positioning of the compression spring 11 and ensure reliable compression of the compression spring 11, a protruding ring (not marked in the figure) is provided on one end of the clamping sleeve 10 near the compression spring 11, protruding in the outward direction.

[0016] For ease of connection, the plug contact 12 is a socket, one end of the clamping post 15 is placed in the corresponding end hole of the plug contact 12, and the socket contact 24 is a pin.

[0017] In order to reliably connect the plug contact 12 and the socket contact 24 and improve service life, a crown spring 17 is installed on the inner wall of the end of the plug contact 12 that is used to connect with the socket contact 24.

[0018] To facilitate quick connection and disassembly between the plug housing 13 and the socket housing 21, a connecting ring 14 is fitted around the plug housing 13. The inner circumference of the connecting ring 14 near the socket 2 is provided with a spiral groove 18. One or more locking pins 20 are provided on the outer circumference of the socket housing 21 near the plug 1. The locking pins 20 are placed in the groove 18 to connect the plug housing 13 and the socket housing 21. The end of the groove 18 can be provided with a recess or a through hole. When the locking pin 20 is rotated to this position, it falls into the recess or through hole to achieve reliable positioning.

[0019] Figure 1 and Figure 4 The image also shows a mounting flange 22 and an interface seal 23 located on the socket housing 21. Figure 2 A plug insulator 16 disposed within the plug housing 13 is also shown. Figure 4 Also shown is a socket insulator 25 located within the socket housing 21 and a solder cup 26 located at one end of the socket contact 24; these are conventional, adaptable structures.

[0020] like Figures 1-4 As shown, in application, first, push the clamping sleeve 10 by hand to overcome the elastic force of the compression spring 11 and move it away from the elastic clamping piece 19. The elastic clamping piece 19 opens under its own elastic force. Then, insert the wire of the component to be tested into the clamping hole between the multiple elastic clamping pieces 19. Then, release the clamping sleeve 10. Under the action of the elastic force of the compression spring 11, the clamping sleeve 10 moves in the opposite direction and fits over the multiple elastic clamping pieces 19, causing the multiple elastic clamping pieces 19 to contract inward, thereby clamping the wire and achieving a fast and reliable connection. After the test is completed, push the clamping sleeve 10 by hand to overcome the elastic force of the compression spring 11 and move it away from the elastic clamping piece 19. The elastic clamping piece 19 opens under its own elastic force and releases the wire, which can then be pulled out, thereby achieving quick disassembly of the wire. Because the elastic life of the compression spring 11 is much longer than that of the elastic piece of the socket structure, the electrical connector of this utility model still has reliable contact after long-term use, which is beneficial to improving the reliability of testing.

[0021] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A highly reliable electrical connector suitable for frequently modified circuits, comprising a plug and a socket, the plug comprising a plug housing and a plug contact mounted within the plug housing, the socket comprising a socket housing and a socket contact mounted within the socket housing, the plug housing and the socket housing being interconnected, and the plug contact and the socket contact being interconnected, characterized in that: The plug further includes a clamping post, a compression spring, and a clamping sleeve. One end of the clamping post is connected to the plug contact, and the other end of the clamping post extends out of the plug housing and is provided with a plurality of elastic clamping pieces distributed along the circumferential direction. One end of each of the plurality of elastic clamping pieces is integrally formed with the clamping post, and the other end is suspended. The outer wall surfaces of the plurality of elastic clamping pieces together form a conical surface, and the inner wall surfaces together form a clamping hole. The cylindrical clamping sleeve is fitted outside the clamping post, and the compression spring is fitted outside the clamping post and located between the clamping sleeve and the plug contact. The clamping sleeve can be fitted outside the plurality of elastic clamping pieces under the elastic force of the compression spring and cause the plurality of elastic clamping pieces to retract inward.

2. The high-reliability electrical connector suitable for frequently modified circuits according to claim 1, characterized in that: The inner walls of the suspended ends of the multiple elastic clamping pieces are provided with conical surfaces and together form a conical hole that is larger on the outside and smaller on the inside.

3. The high-reliability electrical connector suitable for frequently modified circuits according to claim 1, characterized in that: The clamping sleeve has a protruding ring that protrudes outward in the peripheral direction at one end near the compression spring.

4. The high-reliability electrical connector suitable for frequently modified circuits according to any one of claims 1-3, characterized in that: The plug contact is a socket, one end of the clamping post is placed in the corresponding end hole of the plug contact, and the socket contact is a pin.

5. The high-reliability electrical connector suitable for frequently modified circuits according to claim 4, characterized in that: A crown spring is installed on the inner wall of the end of the plug contact that is used to connect with the socket contact.

6. The high-reliability electrical connector suitable for frequently modified circuits according to any one of claims 1-3, characterized in that: The plug housing is fitted with a connecting ring. The inner circumference of the connecting ring near the socket has a spiral groove. The outer circumference of the socket housing near the plug has one or more locking pins. The locking pins are placed in the groove to achieve the connection between the plug housing and the socket housing.

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