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A main circuit plug-in assembly

A technology for the main circuit and electrical connection components, applied to the parts, circuits, connections, etc. of the connection device, it can solve the problems affecting the safety and reliability of the equipment, unstable contact pressure, burned plugs, etc., and achieves excellent temperature rise performance , Reduce contact internal resistance, high life effect

Pending Publication Date: 2021-12-31
SHANGHAI LEADING CONNECTION MECHATRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Start the motor 6-7 times for 20-30 seconds. During the main circuit connection, the resistance value should not change greatly, and the connection pressure should not change greatly, otherwise the temperature rise will double; In the application of plug-in motor starting, due to the unstable contact pressure between the plug chucks, the plug is often burned, which affects the safety and reliability of equipment operation

Method used

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  • A main circuit plug-in assembly
  • A main circuit plug-in assembly
  • A main circuit plug-in assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-12The main circuit plug assembly shown includes an electrical connection assembly 1, an installation box 2, a connection bar 3 and a wiring bar 4; the electrical connection assembly 1 is fixed to the wiring bar 4, and the electrical connection assembly 1 passes through and is installed in the installation box 2, close to and clamp the connection row 3; the electrical connection assembly 1 is provided with a flexible connection sheet 105, so that the electrical connection assembly 1 can move in the installation box 2, and the flexible connection sheet 105 can move in the electrical connection assembly 1, so that When the electrical connection assembly 1 is connected to the connection row 3, the electrical connection assembly 1 can automatically adjust the alignment to align with the connection row 3, and the connection row 3 pushes and compresses the elastic member 101 to generate a clamping force to clamp the connection row 3 . The electrical connecti...

Embodiment 2

[0036] Such as Figure 13 The present invention as shown provides a main circuit plug assembly, including an electrical connection assembly 1, a connection bar 3 and a wiring bar 4; the wiring bar 4 is connected to the connection bar 3 through the electrical connection assembly 1; the electrical connection assembly 1 includes a flexible connector and The fixed frame; the terminal block 4 is connected to the connecting block 3 through a flexible connector; the fixed frame is provided with a limit structure for limiting the position of the flexible connector and a space for the flexible connector to move, and the limit structure limits the connector in the first Displacement in the direction X, the movement space allows the flexible link to move in the second direction Y. The flexible connector includes two parallel and corresponding flexible connecting pieces 105; the flexible connecting piece 105 is provided with a connecting part 107, a flexible connecting part 106 and a conn...

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PUM

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Abstract

The invention relates to a main circuit plug-in assembly, which belongs to the technical field of switchgear; it includes an electrical connection assembly, a connection bar and a wiring bar; the wiring bar is connected to the connection bar through the electrical connection assembly; Supporting structure; the terminal block is connected to the connection bar through a flexible connector, and an elastic connection structure is provided between the flexible connector and the peripheral support structure of the connector. The peripheral support structure of the connector is provided with a limiting structure for limiting the position of the flexible connector and a space for the flexible connector to move. The invention solves the problems of unreliable plugging, energy consumption, and temperature rise in the existing switchgear structure. The connecting bar and the flexible connecting sheet can not only ensure sufficient contact area, but also ensure sufficient contact pressure, which not only reduces contact Internal resistance, and can carry the electric repulsion of large current; it has the advantages of high reliability, low energy consumption, long life, excellent temperature rise performance, and low copper consumption.

Description

technical field [0001] The invention relates to a main circuit plug-in assembly, which belongs to the technical field of switchgear. Background technique [0002] The main circuit connector is a key accessory product in the withdrawable switchgear. At present, the main circuit connectors on the market are mainly U-shaped springs and linear spring structures, and the contact pressure between the plug chucks is relatively small; The contact surface between the plug of the circuit breaker and the chuck of the conductive sheet is very small, and it is mainly based on line contact. Since the circuit breaker often needs to carry a large current, the electric repulsion generated by the large current makes it necessary to ensure good contact between the plug and the chuck. The contact pressure, especially in the motor starting scheme, needs to withstand the instantaneous current of 5 times the motor starting current. Start the motor 6-7 times for 20-30 seconds. During the main circ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R25/16H01R13/502H01R13/629
CPCH01R25/161H01R13/629H01R13/502
Inventor 潘斌华李勇朱小民
Owner SHANGHAI LEADING CONNECTION MECHATRONICS TECH CO LTD