a circuit breaker

A circuit breaker and mechanism box technology, applied in high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve the high temperature effects of conductive rods and movable contacts, affect the service life of conductive rods and movable contacts, and reduce circuit breakage. problems such as the service life of the device, to achieve the effect of saving labor and physical strength, better market benefits, and prolonging service life

Active Publication Date: 2021-10-29
ANHUI LONGPO ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The present invention provides a circuit breaker, which can effectively solve the above-mentioned background technology. During the use of the current vacuum circuit breaker, arc extinguishing is directly carried out through high-intensity vacuum, resulting in high temperature during the arc extinguishing process, which is harmful to the conductive rod and The high temperature impact caused by the moving contact affects the service life of the conductive rod and the moving contact and reduces the service life of the circuit breaker

Method used

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Examples

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Embodiment

[0064] Example: such as Figure 1-13 As shown, the present invention provides a technical solution. A circuit breaker includes a mechanism box 1 and an arc extinguishing chamber 2. A conductive rod 4 is installed on the top of the dense insulating shell 3, and a movable contact 5 is installed on the bottom of the conductive rod 4;

[0065] The interior of the arc extinguishing chamber 2 is installed between the conductive rod 4 and the moving contact 5, and an efficient cooling arc extinguishing assembly 6 is installed, which can quickly cut off the arc, thereby achieving the purpose of quickly extinguishing the arc, improving the efficiency of arc extinguishing, and at the same time making the arc extinguishing Generates less heat and prolongs the service life of the circuit breaker;

[0066] The high-efficiency cooling and arc extinguishing assembly 6 includes a moving slot 601, a pushing rod 602, an insulating plate 603, a pushing plate 604, a rack groove 605, a rack 606, ...

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Abstract

The invention discloses a circuit breaker, which includes a mechanism box and an arc extinguishing chamber. A rack groove is provided at one end of the moving groove, and a rack is movably installed at one end of the rack groove. One end of the push gear is movably installed on one end of the push plate, and one end of the rack is movably installed with a rotating support rod. A limit screw is installed inside the rack slot through a threaded hole. A rectangular cylinder is fixedly installed in the middle, and a limit cylinder is installed movable inside the rectangular cylinder. A fixed screw is installed at one end of the rectangular cylinder through a threaded hole. Compared with the prior art, the beneficial effect of the present invention is that the arc can be quickly cut off, thereby achieving rapid extinguishment. The purpose of the arc is to improve the efficiency of arc extinguishing, and at the same time reduce the heat generated during arc extinguishing, prolong the service life of the circuit breaker, and effectively avoid the situation that the circuit breaker is burned due to high temperature of the circuit breaker.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker. Background technique [0002] A circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. Circuit breakers can be used to distribute electrical energy. Start the asynchronous motor frequently, protect the power line and the motor, and automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to the combination of a fuse switch and an overheating relay. . [0003] In the current use of vacuum circuit breakers, the arc is extinguished directly through high-intensity vacuum, resulting in high temperature during the arc extinguishing process, which has a high temperature effect on the conductive rod and the moving contact, which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/664H01H9/52H01H33/66H01H9/02H01H33/53H01H1/58H01H9/04H01H1/50A62C3/16
CPCA62C3/16H01H1/50H01H1/58H01H9/02H01H9/04H01H9/52H01H33/53H01H33/66H01H33/664
Inventor 陈建
Owner ANHUI LONGPO ELECTRICAL
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