Electric appliance device and linkage electric connection assembly thereof

Abstract

The invention discloses a linkage electric connection assembly. The linkage electric connection assembly comprises a linkage mechanism and two electric connection devices. The electric connection device is connected between a body of the electric appliance device with adraw-out structure and adraw-out device, and comprises a draw-out device connection assembly, a body connection assembly and a flexible assembly. The draw-out device connection assembly is fixed on the draw-out device and is electrically connected with the wire inlet and outlet ends of the draw-out device. The body connection assembly comprises a contact piece with a clamping mechanism, and the clamping mechanism enables the contact piece to be tightly attached to and clamp abody busbar. The flexible assembly connects the draw-out device connection assembly and the body connection assembly to form a conductive path. The contact pieces of the body connecting assembly adapt to the position deviation of the body busbar to generate deviation, so the contact pieces are tightly attached to and clamp the body busbar, and the flexible assembly absorbs the deviation of the contact pieces through self deformation, so the deviation is not transmitted to the draw-out device connection assembly. The linkage mechanism is connected with the clamping mechanisms of the two electric connecting devices, and the linkage mechanism isinsulated and enables the clamping mechanisms of the two electric connecting devices to act synchronously.

Description

technical field [0001] The present invention relates to the field of electrical devices, more specifically, relates to electrical connection components in electrical devices with a withdrawable structure. Background technique [0002] Electrical devices with withdrawable structure include: universal circuit breaker, molded case circuit breaker, automatic transfer switch with drawer device, medium voltage circuit breaker, medium voltage switchgear, etc. A device with a withdrawable structure includes a body and a withdrawable device. The main body uses bridge-type contacts as the main body busbar, and the draw-out device is provided with a contact bridge for electrical connection with the main body busbar. The contact bridge on the withdrawable device is connected with the external incoming and outgoing wire terminals. When the main body is pushed into the withdrawable device, the bus bar of the main body is in contact with the contact bridge to form a conductive path, and ...

AI Technical Summary

Problems solved by technology

A three-pole circuit breaker has at least six electrical connection devices, including three incoming electrical connection devices and three outgoing electrical connection devices, so increasing the clamping force will double the resistance of the main body busbar inserted into the contact bridge, and eventually cause the main body It is difficult to insert the busbar into the electrical connection device, and the operating force of the drive device of the entire drawer device will be unacceptably large

[0006] In summary, the electrical connection device used in the prior art has the following defects: there is an obvious contradiction between the difficulty of assembly and the performance

[0007] The structure of the electrical connection device in the prior art makes it impossible to solve the contradiction between assembly and service performance, and only a compromise solution can be obtained between the two

However, a compromise solution cannot obtain the best performance

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