Inverter DC module

Abstract

An inverter DC module comprises a trapezoidal mounting bracket which is composed of two vertical sheet metal crossbeams, two upper sheet metal panels which are transversely mounted on the two vertical sheet metal crossbeams, and two lower sheet metal panels. The two upper sheet metal panels are used for mounting a DC circuit breaker. The two lower sheet metal panels are used for mounting a connecting input copper bar of the circuit breaker. The input end and the output end of the DC circuit breaker are connected with copper bar assemblies and are input end and output end of a DC module. The input copper bars of two rows of DC circuit breakers are connected with the two lower sheet metal panels through insulating columns. The output ends of the two rows of DC circuit breakers perform conflux output through two output copper bars which are mounted at the back side of the DC circuit breaker. The inverter DC module has advantages of realizing higher convenience and higher speed in structure mounting, realizing modular streamline production of a DC-side circuit breaker and a connecting copper bar of the inverter, and furthermore greatly improving mounting efficiency of the DC-side circuit breaker and the connecting copper bar of the inverter.

Description

technical field [0001] The invention relates to the technical field of inverters, in particular to an inverter DC module. Background technique [0002] At present, the competition for photovoltaic inverters is more intense. In order to reduce the cost of the inverter, various inverter suppliers continue to start from the structure of the inverter to reduce the size of the inverter, and at the same time indirectly drive the reduction of the size and cost of the integrated computer room, so as to achieve purpose of cost reduction. Looking at the inverter structure layout of various manufacturers, it is found that the compression of the inverter size will bring a new problem, that is, the early installation and later maintenance of each device will become more difficult, and the labor cost will also have a corresponding It is not easy to realize streamlined and modularized production within the enterprise. [0003] In the structural design of the inverter, due to the large n...

AI Technical Summary

Problems solved by technology

[0004] (1). The further reduction of the external dimension of the inverter will greatly increase the difficulty of the installation and later maintenance of the DC circuit breaker part of the inverter, and reduce the benefit;

[0005] (2). The loose parts installation of the DC side circuit breaker and the copper bar is not convenient to realize the streamlined and modularized production within the enterprise

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