Automatic switching miniature circuit breaker

A small circuit breaker, opening and closing technology, applied in circuits, parts of protection switches, electrical components, etc., can solve the problems of inability to meet the needs of power companies, prone to failure functions, complex structures, etc., to improve contact repetition. Positioning accuracy, the effect of reducing electromagnetic interference

Inactive Publication Date: 2016-06-29
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 switching miniature circuit breaker
  • Automatic switching miniature circuit breaker
  • Automatic switching miniature circuit breaker

Examples

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Embodiment 1）

[0034] Figure 1 to Figure 17 One specific embodiment of the invention is shown.

[0035] The present embodiment will be described in detail below in conjunction with the accompanying drawings.

[0036] See figure 1 As shown, this embodiment is an automatic opening and closing miniature 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 four circuit breakers 20 (also called miniature circuit breakers breaker or miniature circuit breaker). In 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.

[0037] 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, an incoming power terminal, an outgoing power terminal and an arc exti...

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PUM

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Abstract

The invention discloses a small circuit breaker with automatic opening and closing, which comprises a circuit breaker body and an automatic opening and closing drive mechanism; the circuit breaker body includes one to four circuit breakers; each circuit breaker includes a plastic case, an opening and closing handle and an operating Mechanism; the rotation center of each opening and closing handle is provided with a spindle hole; the automatic opening and closing drive mechanism includes a housing, a driving motor with a driving turbine, a linkage turbine, a linkage gear, an output spindle and a tripping linkage; The linkage gear is a sector gear, and linkage teeth are set on one-sixth to one-third of the outer peripheral wall of the linkage gear; the driving motor drives the linkage turbine to rotate through the driving turbine, and the linkage turbine drives the tripping linkage through its cam linkage part. The part rotates reciprocally within the preset angle range, and the opening and linkage tripping lever is moved by the lever part of the tripping linkage part to perform a quick opening action; the linkage turbine drives the linkage gear and the output spindle to rotate synchronously through its driving teeth. The invention can realize electric opening and closing.

Description

technical field [0001] The technical field of the miniature circuit breaker of the present invention, in particular relates to an automatic opening and closing miniature circuit breaker. Background technique [0002] According to the needs of my country's power supply network intelligence, the State Grid Corporation of China requires the power supply network intelligence. Therefore, it is necessary for the terminal actuator of the power supply network - the miniature circuit breaker (or miniature circuit breaker) to execute the upper-end signal and have 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, it also needs to have an electric opening and closing function (commonly known as automatic opening and closing function) to achieve remote control; especially It is a combination of smart mete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10
CPCH01H71/10H01H71/1009H01H71/1045
Inventor 郑文秀郑逸扬钱江波
Owner HONGXIU ELECTRIC
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