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Automatic opening and closing miniature circuit breaker

A small circuit breaker, opening and closing technology, applied in the direction of circuits, parts of protective switches, electrical components, etc., can solve problems such as easy-to-fault functions, failure to meet the needs of power companies, and complex structures

Active Publication Date: 2017-08-29
HONGXIU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional electric opening and closing miniature circuit breakers have the defects of complex structure, easy failure and incomplete functions, which cannot meet the needs of power companies. Key points and difficulties of technicians' work

Method used

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  • Automatic opening and closing miniature circuit breaker
  • Automatic opening and closing miniature circuit breaker
  • Automatic opening and closing miniature circuit breaker

Examples

Experimental program
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Embodiment 1）

[0039] The present embodiment will be described in detail below with reference to the accompanying drawings.

[0040] See figure 1 As shown, this embodiment is an automatic opening and closing small circuit breaker, including a circuit breaker body 2 and an automatic opening and closing drive mechanism 1; in this embodiment, the circuit breaker body includes two circuit breakers 20 (also called small circuit breakers). circuit breaker or miniature circuit breaker). In specific practice, according to specific requirements, the number of miniature circuit breakers combined into the circuit breaker body can be arbitrarily selected from one to four.

[0041] See Figure 1 to Figure 7 As shown, each circuit breaker includes a plastic case 21, an opening and closing handle 22, a moving contact, a static contact, an operating mechanism 25, an incoming terminal 26, an outgoing terminal 27 and an arc extinguishing mechanism 28; A spindle hole 221 is provided at the rotation center o...

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Abstract

The invention discloses an automatic-opening and closing small circuit breaker, which comprises a circuit breaker body and an automatic-opening and closing driving mechanism, wherein the circuit breaker body comprises one to four circuit breakers; each circuit breaker comprises a plastic shell, an opening and closing handle and an operation mechanism; the rotation center of each opening and closing handle is provided with a main shaft hole; the automatic-opening and closing driving mechanism comprises a shell, a driving motor with a driving turbine, a linkage turbine, a linkage gear, an output main shaft and a tripping linkage piece; the driving motor drives the linkage turbine to perform reciprocating rotation via the driving turbine; the linkage turbine drives the tripping linkage piece to perform reciprocating rotation in a preset angle range via a cam linkage part; an opening linkage tripping rod is stirred via a rod stirring part of the tripping linkage piece for rapid opening action; and the linkage turbine drives the linkage gear and the output main shaft to rotate synchronously via a driving gear. Automatic tripping operation can be carried out for power cutoff in the case of arrearage, automatic power supply is realized in the case of charging, and an arrearage user can be prevented from closing the circuit breaker privately.

Description

technical field [0001] The present invention is in the technical field of miniature circuit breakers, in particular to an automatic opening and closing miniature circuit breaker. Background technique [0002] According to the demand for intelligent power supply network in my country, the State Grid Corporation of China requires the power supply network to be intelligent. Therefore, the terminal actuator of the power supply network, the miniature circuit breaker (or miniature circuit breaker), is required to perform the upper-end signal with the functions of tripping and closing. Therefore, the current development trend of miniature circuit breakers is that in addition to the traditional manual opening and closing and overcurrent and overload automatic tripping functions, they also need to have electric opening and closing functions (commonly known as automatic opening and closing functions) to realize remote control; especially It is combined with the smart meter to realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/10
CPCH01H71/10H01H2071/109
Inventor 郑文秀郑逸扬钱江波
Owner HONGXIU ELECTRIC