Unlock instant, AI-driven research and patent intelligence for your innovation.

A test fixture for connecting terminals

A test fixture and terminal technology, which is applied to measuring devices, measuring electrical variables, measuring device casings, etc., can solve problems such as inconvenient manual wiring, and achieve the effects of ensuring test quality, simplifying test operations, and facilitating installation and disassembly.

Active Publication Date: 2021-08-10
DAYU ELECTRIC
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects existing in the prior art, the technical problem solved by the present invention is: how to solve the inconvenient problem of relying on manual wiring for the existing complete set of electrical equipment testing, and at the same time improve the working efficiency of the electrical equipment testing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A test fixture for connecting terminals
  • A test fixture for connecting terminals
  • A test fixture for connecting terminals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: see figure 1 As shown, a test fixture for connecting terminals includes a metal connecting rod 4, one end of the connecting rod 4 is inserted into the insulating case 1 and connected to the test lead 2, and the other end of the connecting rod 4 is provided with a test head 5, which passes through a spring 15 Connected with the connecting rod 4, the top of the test head 5 is provided with a guide hole for installing the spring 15 (the guide hole is a blind hole), and the two ends of the spring 15 are respectively fixedly connected with the bottom surface of the connecting rod 4 and the guide hole. The diameter of the guide hole is slightly larger than the diameter of the lower end of the connecting rod 4 , and the test head 5 can move axially along the connecting rod 4 within the stretching range of the spring 15 .

[0032] see Figure 4 As shown, the bottom of the insulating housing 1 is provided with more than two positioning columns 8 matching the screw ho...

Embodiment 2

[0035] Embodiment 2: on the basis of embodiment 1, refer to image 3 As shown, the limit locking mechanism 6 includes an annular plate 14 sleeved outside the spring 15 and two locking elastic pieces 13 fixedly mounted on the upper side of the annular plate 14, the inner diameter of the annular plate 14 is larger than the diameter of the spring 15, and The outer diameter of the annular plate 14 is smaller than the diameter of the guide hole. The bottom ends of the two locking elastic pieces 13 are fixedly connected with the top surface of the annular plate 14 to form a U-shaped claw that can expand outward.

[0036] see Figure 3-4 As shown, in the process of contacting the test head 5 with the intermediate conductor of the terminal 17, the locking elastic piece 13 shrinks after being squeezed by the opening of the terminal 17, and enters the opening in the middle of the connecting terminal 17, and the locking elastic piece 13 is away from the end of the ring plate 14 Engage ...

Embodiment 3

[0038] Embodiment 3: on the basis of embodiment 2, refer to figure 2As shown, the limit locking mechanism 6 also includes a C-shaped limit snap spring 11 mounted on the lower part of the connecting rod 4 for limiting the upward movement of the annular plate 14 relative to the connecting rod 4 . The lower part of the connecting rod 4 is provided with an annular groove, and the limit snap spring 11 is detachably mounted on the lower part of the connecting rod 4 by engaging with the annular groove.

[0039] Before the electrical performance test, the test head 5 is inserted into the opening in the middle of the terminal 17. Since the limit clamp 11 restricts the upward movement of the annular plate 14 relative to the connecting rod 4, the connecting rod 4 drives the limit locking mechanism 6 into the middle of the connecting terminal 17. In the opening of the opening, after the test head 5 contacts the conductor of the terminal 17, the test fixture is automatically connected and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a test fixture for connecting terminals, comprising a connecting rod, one end of the connecting rod is inserted into an insulating housing for connecting with a test wire, the other end of the connecting rod is provided with a test head, and the test head is connected to the connecting rod through a spring. The test head, connecting rod and spring are all made of conductive materials. There is a guide hole on the upper part of the test head, and the two ends of the spring are fixedly connected with the bottom surface of the connecting rod and the guide hole respectively. The head can move along the axial direction of the connecting rod within the stretching range of the spring; more than two positioning columns are arranged on the lower part of the insulating housing, and a limit locking mechanism is arranged on the lower part of the connecting rod. Use the limit locking mechanism to lock the connection between the test fixture and the terminal to prevent the test head from being separated from the metal conductor in the middle of the terminal during the test, which not only simplifies the test operation of electrical equipment, but also improves the efficiency and quality of electrical equipment testing. The prospect of promoting the application.

Description

technical field [0001] The invention relates to the technical field of electrical equipment detection, in particular to a test fixture for connecting terminals. Background technique [0002] Terminal block is an accessory product used to realize electrical connection, in order to make the connection between cables and electrical appliances stronger and safer, and improve the conductivity. With the increasing degree of industrial automation, most of the complete sets of electrical equipment are connected by terminal blocks. [0003] Due to the lack of test fixtures for terminal blocks on the market, at present, when testing complete sets of electrical equipment, it usually relies on manually connecting the wire ends of the test points of the test equipment to the terminal blocks, so that there are some problems in the wiring process: 1) Manually connect a Terminals are fixed by one terminal, which is not only labor-intensive, but also low in test efficiency; 2) Cable errors,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/04
CPCG01R1/0408
Inventor 李劲春王怡华王琴
Owner DAYU ELECTRIC