CN214011304U

CN214011304U - Quick-connection conductive terminal testing device with rotary contact

Info

Publication number: CN214011304U
Application number: CN202022854182.2U
Authority: CN
Inventors: 季新华; 马柏华; 杨赛
Original assignee: Wuxi Lingbo Electronic Technology Co ltd
Current assignee: Wuxi Lingbo Electronic Technology Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-08-20
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses a quick-connect conductive terminal testing device with a rotary contact, which relates to the field of electric connectors and comprises a conductive end body, a moving part, a connector and a wire, wherein the connector comprises a first cylinder and a second cylinder, the moving part is provided with a first through cavity and a second through cavity, one end of the first cylinder is fixedly connected to the conductive end body, the other end of the first cylinder passes through the first through cavity, the second cylinder is arranged in the second through cavity, the diameter of the first cylinder is smaller than that of the first through cavity, the diameter of the first through cavity is smaller than that of the second cylinder, the diameter of the second cylinder is smaller than that of the second through cavity, one of the upper surface of the moving part and the lower surface of the conductive end body is provided with a convex hemisphere surface, the other of the upper surface of the moving part and the lower surface of the conductive end body is provided with a concave hemisphere surface, the convex hemisphere surface is contacted with the concave hemisphere surface, and forms a rotary contact through forming the rotary contact, the contact area between the movable part and the wiring terminal is maximized, and flashover and sparking are avoided.

Description

Quick-connection conductive terminal testing device with rotary contact

Technical Field

The utility model belongs to the technical field of the electric connector and specifically relates to a take rotary contact's quick-connect conductive terminal testing arrangement.

Background

The terminal by test electrical apparatus passes through electric motor car test fixture to test, for example by test electrical apparatus be an aluminium base board controller, the female terminal to this heavy current terminal that uses when being tested electrical apparatus is tested generally for cylindrically, adopt copper as the raw and other materials of terminal, carry out surface treatment after the machining shaping again, the aluminium post through on terminal and the test fixture contacts and carries out the signal of telecommunication test, because it is great at the in-process phase current of test electrical apparatus by test, the phenomenon of striking sparks appears easily in this kind of traditional heavy current terminal, this will lead to certain potential safety hazard to influence the measuring accuracy simultaneously.

In order to solve the technical problem, a copper gasket is usually added at the upper end of an aluminum column of a test fixture in the prior art, so that the ignition phenomenon can be reduced, the aluminum column can be protected to a certain extent, but the design is only suitable for the condition that the lower surface of the aluminum column is in complete contact with the upper surface of a binding post, in actual operation, the binding post of a tested electric appliance is not completely vertical, certain errors exist in manufacturing and installation, the condition that the binding post is obliquely installed can occur, when large current passes through, the upper surface of the binding post and the lower surface of the aluminum column can not be in complete contact, and the problems of flashover and ignition still exist under the condition.

SUMMERY OF THE UTILITY MODEL

The inventor of the present invention provides a quick-connect conductive terminal device with a movable contact, aiming at the problems and the technical requirements, the technical scheme of the utility model is as follows:

a quick-connection conductive terminal testing device with a rotary contact is arranged on a testing jig and used for being connected to a binding post of an electric appliance to be tested, and comprises a conductive end body, a moving part, a connector and a wire, wherein the four parts are conductive structures, the conductive end body is connected to an external power supply through the wire, the connector comprises a first cylinder and a second cylinder fixedly connected to the lower surface of the first cylinder, the moving part is provided with a first through cavity and a second through cavity positioned at the lower end of the first through cavity, one end of the first cylinder is connected to the conductive end body, the other end of the first cylinder penetrates through the first through cavity, the second cylinder is arranged in the second through cavity, the diameter of the first cylinder is smaller than that of the first through cavity, and the diameter of the first through cavity is smaller than that of the second cylinder, the diameter of the second cylinder is smaller than that of the second through cavity, the upper surface of the movable piece is in contact with the lower surface of the conductive end body, and the two contact surfaces form matched concave-convex hemispheres.

The device further comprises a fixing seat and an elastic piece, wherein a third through hole and an inner cavity are formed in the fixing seat, the conducting end body comprises a third cylinder and a fourth cylinder fixedly connected to the lower surface of the third cylinder, the diameter of the third cylinder is smaller than that of the fourth cylinder, the third cylinder penetrates through the third through hole and is connected to the lead, and two ends of the elastic piece are respectively abutted to the upper surface of the inner cavity and the upper surface of the fourth cylinder.

The further technical scheme is that a boss is formed on the outer wall of the fixing seat in a surrounding mode, and a threaded hole is formed in the boss.

The further technical scheme is that a fixing hole is formed in the fourth column body, threads matched with the fixing hole are formed in the first column body, and the first column body is installed in the threaded hole.

The device further comprises two nuts, threads matched with the two nuts are formed on a third column body, a first nut and a second nut are installed on the third column body, and the conducting wire is clamped through the first nut and the second nut.

The further technical scheme is that the spherical centers of the convex hemispherical surface and the concave hemispherical surface are positioned on the central line of the first column body.

The further technical scheme is that the connector is a screw.

The further technical scheme is that the elastic piece is a spring.

The utility model has the beneficial technical effects that: the moving part through the installation of conductive terminal body lower extreme constitutes a rotary contact, and this rotary contact can rotate through the sphere, guarantees the moving part all the time from this and by the terminal upper surface contact of test electrical apparatus, and area of contact maximize guarantees the stability and the durability of contact force in the test procedure to guarantee that the condition of flashover and striking sparks can not appear at the joint under the heavy current condition.

Drawings

Fig. 1 is a cross-sectional view of a test apparatus of the present application.

Fig. 2 is a schematic view of a connector of the present application.

Fig. 3 is a schematic view of the fixing base of the present application.

Fig. 4 is a schematic view of a conductive terminal body of the present application.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, a quick-connect conductive terminal body testing device with a movable member comprises a conductive terminal body 1, a movable member 2, a connector 3 and a wire 4, wherein each part is of a conductive structure, the conductive terminal body 1 is connected to an external power supply through the wire 4, the power supply is introduced into the device through the wire 4, the lower surface of the movable member 2 is used for being connected to a wiring terminal 5 of an electric appliance to be tested, and as shown in fig. 1, the wiring terminal 5 is inclined due to errors such as production and installation.

The connector 3 is used for connecting the conductive terminal body 1 and the movable member 2, the connector 3 includes a first cylinder 31 and a second cylinder 32, the second cylinder 32 is fixedly connected to a lower surface of the first cylinder 31, a diameter of the first cylinder 31 is smaller than a diameter of the second cylinder 32, as shown in fig. 2, the movable member 2 is formed with a first through cavity 21 and a second through cavity 22, the second through cavity 22 is located below the first through cavity 21, the diameter of the first through cavity 21 is smaller than that of the second through cavity 22, one end of the first cylinder 31 is connected to the conductive terminal body 1, the other end passes through the first through cavity 21, the second cylinder 32 is installed in the second through cavity 22, the diameter of the first cylinder 31 is smaller than that of the first through cavity 21, the diameter of the first through cavity 21 is smaller than that of the second cylinder 32, the diameter of the second cylinder 32 is smaller than that of the second through cavity 21, the connector 3 generally uses a screw, such as socket head cap screws.

One of the upper surface of the moving element 2 and the lower surface of the conductive end body 1 is formed with a convex hemispherical surface, the other one of the upper surface of the moving element 3 and the lower surface of the conductive end body 1 is formed with a concave hemispherical surface, the convex hemispherical surface is located in the concave hemispherical surface, and the concave hemispherical surface is contacted with the convex hemispherical surface, as shown in fig. 1, an embodiment is illustrated, the upper surface of the moving element 2 is the convex hemispherical surface, and the lower surface of the conductive end body 1 is the concave hemispherical surface, so that the moving element 2 can rotate within a certain range, and the moving element 2 with a rotating function can be closely contacted with the upper surface of the binding post 5.

For ease of positioning, the spherical centers of the convex and concave hemispheres are located on the centerline of the first cylinder 31.

The device still includes fixing base 6 and elastic component 7, as shown in fig. 3, the outer wall of fixing base 6 encircles and is formed with boss 61, has seted up screw hole 62 on the boss 61, realizes the fixed to whole device through screw hole 62.

The fixing base 6 is formed with a third through hole 63 and an inner cavity 64, as shown in fig. 4, the conductive terminal body 1 includes a third column 11 and a fourth column 12 fixedly connected to the lower surface of the third column 11, the diameter of the third column 11 is smaller than that of the fourth column 12, the third column 11 passes through the third through hole 63 and is connected to the wire 4, two ends of the elastic member 7 respectively abut against the upper surface of the inner cavity 64 and the upper surface of the fourth column 12, so that the movable member 2 is telescopic in a certain range through the elastic member 7, and the binding post 5 can be better attached, wherein the elastic member 7 is a spring.

The device further comprises two nuts, threads matched with the two nuts are arranged on the third cylinder 11, the first nut 81 and the second nut 82 are installed on the third cylinder 11 through the threads, and the lead 4 is clamped through the first nut 81 and the second nut 82.

The fourth column 12 of the conductive terminal 1 is formed with a fixing hole 13, the first column 31 is formed with a screw thread matching with the fixing hole 13, and the first column 31 is fixedly connected with the conductive terminal 1 through the fixing hole 13.

What has been described above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and scope of the present invention are to be considered as included within the scope of the present invention.

Claims

1. A quick-connection conductive terminal testing device with a rotary contact is characterized in that the device is installed on a testing jig and used for being connected to a binding post of an electric appliance to be tested, the device comprises a conductive end body, a moving part, a connector and a wire, the four parts are conductive structures, the conductive end body is connected to an external power supply through the wire, the connector comprises a first cylinder and a second cylinder fixedly connected to the lower surface of the first cylinder, the moving part is provided with a first through cavity and a second through cavity positioned at the lower end of the first through cavity, one end of the first cylinder is connected to the conductive end body, the other end of the first cylinder penetrates through the first through cavity, the second cylinder is installed in the second through cavity, the diameter of the first cylinder is smaller than that of the first through cavity, and the diameter of the first through cavity is smaller than that of the second cylinder, the diameter of the second cylinder is smaller than that of the second through cavity, the upper surface of the movable piece is in contact with the lower surface of the conductive end body, and the two contact surfaces form matched concave-convex hemispheres.

2. The quick-connect conductive terminal testing device with the rotary contact as claimed in claim 1, further comprising a fixing seat and an elastic member, wherein the fixing seat is formed with a third through hole and an inner cavity, the conductive terminal body comprises a third cylinder and a fourth cylinder fixedly connected to a lower surface of the third cylinder, a diameter of the third cylinder is smaller than a diameter of the fourth cylinder, the third cylinder passes through the third through hole and is connected to the wire, and two ends of the elastic member respectively abut against an upper surface of the inner cavity and an upper surface of the fourth cylinder.

3. The quick connect conductive terminal testing device with the rotary contact as claimed in claim 2, wherein the outer wall of the fixing base is formed with a boss in a surrounding manner, and the boss is provided with a threaded hole.

4. The device for testing the quick-connect conductive terminals with the rotary contacts as claimed in claim 2, wherein the fourth cylinder is formed with a fixing hole, the first cylinder is formed with a thread engaged with the fixing hole, and the first cylinder is installed in the threaded hole.

5. The device for testing the quick-connect conductive terminals with the rotary contacts as claimed in claim 2, further comprising two nuts, wherein the third cylinder is formed with threads for engaging with the two nuts, the first nut and the second nut are mounted on the third cylinder, and the conductive wire is clamped by the first nut and the second nut.

6. The device for testing the quick-connect conductive terminals with the rotary contacts as claimed in claim 1, wherein the spherical centers of the convex and concave hemispheres are located on the center line of the first cylinder.

7. The device as claimed in claim 1, wherein the connector is a screw.

8. The device as claimed in claim 2, wherein the resilient member is a spring.