Inter-pole connection plate for multipole circuit breaker

Abstract

The invention provides an inter-pole connection plate for a multipole circuit breaker. The multipole circuit breaker comprises a base and a multipole contact structure arranged on the base, wherein two ends of each pole of contact structure of the multipole circuit breaker are used as two terminals; the inter-pole connection plate comprises a shell, N connection wires, and N pairs of conducting cylinders, wherein the N connection wires are embedded in the shell, N is a positive integer, the N pairs of conducting cylinders are in one to one correspondence to the N connection wires, each pair ofconducting cylinders are arranged at two ends of a corresponding connection wire, a part of each conducting cylinder is connected with one end or another end of the connection wire in the shell, theother part is exposed out of the shell, when the inter-pole connection plate and the multipole circuit breaker are matched and installed, the N pairs of conducting cylinders are connected with corresponding terminals in the multipole circuit breaker, so as to serially connect at least two poles of contact structure in the multipole circuit breaker. Contact structures can be connected in series without changing the internal structure design of a common multipole circuit breaker, so that the inter-pole connection plate for the multipole circuit breaker can be widely used and has low cost.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to an interpole connecting plate for a multi-pole circuit breaker. Background technique [0002] With the development of new energy technology, higher requirements are put forward for low-voltage electrical components. Especially with the continuous development of photovoltaic power plants, the performance indicators of the protection components required by the power plant have higher requirements. For example, in the photovoltaic power DC system, the rated operating voltage of low-voltage electrical appliances has reached DC1500V. Using the method of breaking points in series can improve the breaking performance of the circuit breaker. [0003] In order to realize the series connection of breakpoints, the current circuit breakers are mostly designed in series inside the circuit breaker, and the series structure and the power-off contact structure may affect each other. M...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of poor applicability and high cost of current breakpoint series circuit breakers, the present invention provides an inter-pole connecting plate for multi-pole circuit breakers

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