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Internal cascade structure used for low voltage DC circuit breaker

A cascade structure, low-voltage direct current technology, applied to the components, circuits, and protection switch operation/release mechanism of the protection switch, which can solve the problems of complex structure, high cost, and large copper consumption of the circuit breaker, and achieve rapid response , less copper consumption, and the effect of increasing the working voltage

Pending Publication Date: 2018-02-02
DELIXI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the circuit breaker is relatively complicated, the copper consumption is large, and the cost is high.

Method used

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  • Internal cascade structure used for low voltage DC circuit breaker
  • Internal cascade structure used for low voltage DC circuit breaker

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Experimental program
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Effect test

Embodiment 1

[0025] An internal cascade structure for low-voltage DC circuit breakers, the structure of which is as follows figure 1 , figure 2 As shown, the cascade structure includes a base 1, three sets of contact units 2 arranged in the base 1, and two overload and short circuit protection releases 3, and the adjacent two sets of contact units 2 on the right The moving contact 21 is connected, the static contact 22 is provided with an external terminal 24, and the connection line of the two moving contacts 21 is provided with an overload and short circuit protection release 3; the contact unit 2 located on the far left Both the static contact 22 and the moving contact 21 are provided with an external terminal 24, and an overload and short circuit protection release 3 is provided. The base 1 includes two insulating partitions 11 arranged in parallel. The two insulating partitions 11 divide the inner space of the base 1 into three parallel placement spaces, and the three groups of cont...

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PUM

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Abstract

The invention relates to an internal cascade structure used for a low voltage DC circuit breaker. The cascade structure comprises a pedestal and three sets of contact units and two overload and shortcircuit protection tripping devices which are arranged in the pedestal. The moving contacts of two sets of adjacent contact units are connected, the static contacts are provided with external connecting terminals and the connecting line of the two moving contacts is provided with a protection unit. The static contact and the moving contact of the rest set of contact unit are provided with the external connecting terminals and provided with the protection units. Compared with the structures in the prior art, the copper consumption of the loop can be effectively reduced, the product cost can bereduced and the internal shorting part can be reduced so that the internal loop contact resistance can be reduced, temperature rise of the product can be reduced and the product performance can be enhanced.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to an internal cascade structure for a low-voltage DC circuit breaker. Background technique [0002] Since the beginning of the new century, the solar photovoltaic industry has become one of the most concerned emerging industries in the world today. Photovoltaic power generation does not require raw materials and has no gas emissions. It is a green industry and has the advantages of no pollution, safety, long life, and inexhaustibility. Known as the most important new energy in the 21st century, it is widely used. [0003] With the rapid development of the new energy industry, DC technology has been more and more widely used. In particular, the working voltage of solar power generation systems is getting higher and higher, which puts forward higher requirements for low-voltage DC circuit breakers. Low-voltage DC circuit breakers The rated working voltage is even as high as 1500V. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10
CPCH01H71/1009
Inventor 郑杰陆源崔贇杰
Owner DELIXI ELECTRIC