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Small circuit breaker with electric switching/closing device

A small circuit breaker, opening and closing technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of difficult to install electric opening and closing mechanism, prone to failure, small size, etc., to reduce capital investment, The effect of reducing overall cost and beautiful appearance

Active Publication Date: 2016-07-13
申清章 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, although miniature circuit breakers (such as C45 or DZ47 miniature circuit breakers) are widely used in household power supply lines, due to their small size and their own structural limitations, it is difficult to install an electric opening and closing mechanism.
At present, there are also individual miniature circuit breakers with electric opening and closing functions on the market. There are two structures: (1) The electric opening and closing mechanism is built into the miniature circuit breaker housing, that is, the wiring with the miniature circuit breaker The terminal, operating mechanism, and overload and overcurrent protection mechanism are set in the same housing, and its structure is relatively complex, which is prone to failure; in addition, due to the current small market for electric opening and closing type miniature circuit breakers, enterprises produce this integrated type The electric opening and closing type miniature circuit breaker needs to design a new structure, mold and production process, and the investment is relatively large; (2) The electric opening and closing mechanism is externally placed on the outer wall of the miniature circuit breaker housing, such as the patent document CN201302949Y disclosed Air switch controller; the disadvantage of this structure is that the appearance is ugly. In addition, because the C45 type or DZ47 type small circuit breaker adopts DIN rail installation in the mainstream, the reserved installation space has been standardized, and it is generally difficult to meet this external structure. The required space requirements

Method used

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  • Small circuit breaker with electric switching/closing device
  • Small circuit breaker with electric switching/closing device
  • Small circuit breaker with electric switching/closing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0015] Figure 1 to Figure 6 A first embodiment of the invention is shown, in which figure 1 It is a schematic diagram of a three-dimensional structure of the first structure of the present invention; figure 2 yes figure 1 A schematic diagram of the three-dimensional structure of the shown miniature circuit breaker viewed from another angle; image 3 yes figure 1 A schematic diagram of a three-dimensional structure of the electric opening and closing device in the miniature circuit breaker shown; Figure 4 yes image 3 A schematic diagram of the three-dimensional structure of the electric opening and closing device when viewed from another angle; Figure 5 yes image 3 An exploded schematic diagram of the electric opening and closing device shown; Image 6 Yes Yes image 3 A schematic diagram of the structure of the linkage gear assembly in the electric opening and closing device shown.

[0016] This embodiment is a miniature circuit breaker, see Figure 1 to Figure...

Embodiment 2）

[0023] Figure 7 It is an exploded schematic diagram of the second structure of the present invention, showing the second specific embodiment of the present invention.

[0024] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 7 As shown, the dial handle and the manual trigger are relatively fixedly arranged through a clamping piece 8, and the clamping piece includes a linkage portion 81 and a socket portion 82 sleeved on the dial handle and the manual trigger.

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PUM

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Abstract

The invention discloses a small circuit breaker with an electric switching / closing device, comprising a small circuit breaker body and an electric switching / closing device, wherein the small circuit breaker body comprises a shell and a manual trigger piece for switching / closing; the electric switching / closing device is provided with an insulating shell, a shifting handle and an electric mechanism; the electric switching / closing device drives the manual trigger piece to implement a switching / closing action through the shifting handle; a linkage gear component comprises a main gear fixedly arranged on a pin shaft, a pinion arranged on the pin shaft in a sliding way, a coil arranged on the main gear, a magnet yoke arranged on the pinion, reset springs used for pushing away the pinion far from the main gear and balls arranged between the main gear and the pinion; multiple limiting holes arranged in parallel with the extension direction of the pin shaft are formed in the adjacent surface of the main gear, adjoining the pinion; the balls are located at the open ends of the limiting holes respectively; each reset spring is located in the corresponding limiting hole; and the outer side ends of the reset springs are abutted against the balls. The small circuit breaker is attractive in appearance, more convenient to install and more convenient to use.

Description

technical field [0001] The invention belongs to the technical field of structural design of small circuit breakers. Background technique [0002] At present, although miniature circuit breakers (such as C45 or DZ47 miniature circuit breakers) are widely used in household power supply lines, it is difficult to install an electric opening and closing mechanism due to their small size and limitations of their own structure. At present, there are also individual miniature circuit breakers with electric opening and closing functions on the market. There are two structures: (1) The electric opening and closing mechanism is built into the miniature circuit breaker housing, that is, the wiring with the miniature circuit breaker The terminal, operating mechanism, and overload and overcurrent protection mechanism are set in the same housing, and its structure is relatively complex, which is prone to failure; in addition, due to the current small market for electric opening and closing...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H71/70
CPCH01H71/10H01H71/70
Inventor 胡小青
Owner 申清章