Small-sized circuit breaker

A technology of small circuit breakers and double gold sheets, which is applied in circuit breaker parts, circuits, and protection switch parts, etc., can solve problems such as the inability of double gold sheets to be adjusted.

Inactive Publication Date: 2012-07-11
上海巢安电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem to be solved by the present invention is to improve the problem that the double g

Method used

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  • Small-sized circuit breaker
  • Small-sized circuit breaker
  • Small-sized circuit breaker

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Embodiment Construction

[0024] A miniature circuit breaker of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 As shown in , the miniature circuit breaker of this embodiment includes a housing 5, a double gold plate 2, a lock 4, an arc extinguishing chamber 13, a terminal 14, a moving contact 6, a moving contact bracket 7, and a moving contact through The shaft 9 of the head bracket 7, the double sequin 2 includes the fixed end of the double sequin and the movable end of the double sequin, and the small circuit breaker is also provided with a partition 20, and the partition 20 is located between the double sequin 2 and the arc striker 21, The partition plate 20 corresponds to the casing 5 and encloses a chamber, and the double gold sheet 2 is arranged in the chamber. So that the double gold sheet 2 will not be affected by ...

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PUM

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Abstract

The invention provides a small-sized circuit breaker, comprising a shell, a double-gold sheet, a lock buckle, an arc extinguish chamber, a wiring column, a movable contact, a movable contact bracket and a shaft passing through the movable contact bracket, wherein the double-gold sheet comprises a double-gold sheet fixed end and a double-gold sheet movable end; the small-sized circuit breaker is further provided with a separation plate which is located between the double-gold sheet and an arc striking sheet; the separation plate corresponds to the shell to form a cavity ,and the double-gold sheet is arranged in the cavity. According to the small-sized circuit breaker, the double-gold sheet is not affected by the heating of other elements; in addition, an magnetic field generated by electric arcs on the double-gold sheet is separated from the magnetic field generated by the electric arcs of the arc striking sheet and the magnetic fields do not interfere with each other, so that the arc-striking effect of the arc striking sheet is good, and the breaking performance of the circuit breaker is good.

Description

technical field [0001] The invention relates to a circuit breaker, especially a small circuit breaker. Background technique [0002] Miniature circuit breakers are suitable for overload and short-circuit protection of AC lines, and can also be used for infrequent operation conversion of lines under normal conditions. Miniature circuit breakers are mainly used in various places such as industry, commerce, high-rise buildings and residential buildings. [0003] In the existing small circuit breaker, there is no barrier between the double gold piece and other components of the circuit breaker, which is easily affected by the heat generated by other components of the circuit breaker, resulting in deformation of the double gold piece at an inappropriate time, causing the circuit breaker to disconnect accidentally. At the same time, the double gold piece is close to the arc striker without any barrier. When the moving and static contacts of the circuit breaker trip, the curre...

Claims

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Application Information

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IPC IPC(8): H01H71/02H01H73/18
Inventor 俞金荣余正阳高汉林
Owner 上海巢安电气有限公司
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