Alternating-current and direct-current interchangeable circuit breaker
A circuit breaker, AC and DC technology, applied in circuit breaker parts, circuits, protection switch parts and other directions, can solve the problem of inconvenient installation of magnetic conductive plates, low assembly work efficiency, and inability of AC circuit breaker and DC circuit breaker structure. Interchange and other issues
Inactive Publication Date: 2021-06-04
GACIA ELECTRICAL APPLIANCE +2
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] However, in the existing circuit breakers, the AC circuit breaker does not need to install the magnetic plate, the structure of the AC circuit breaker and the DC circuit breaker cannot be interchanged, and in the existing DC circuit breaker, the magnetic plate is inconvenient to install, and the assembly work efficiency is low.
Method used
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Embodiment Construction
[0023] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:
[0024] Such as Figure 1-4 As shown, an AC and DC interchangeable circuit breaker includes a housing 1 and an arc extinguishing mechanism 2 installed in the housing 1. The arc extinguishing mechanism 2 includes an arc extinguishing chamber 21 and an arc strike plate 22. Iron plates 3 are arranged on both sides of the arc starting plate 22 , and a gas-producing plastic sheet 5 is arranged between the iron plate 3 and the arc starting plate 22 .
[0025] The housing 1 usually includes two matched first shells and second shells. The position and structure of the first shell and the second shell corresponding to the arc extinguishing mechanism 2 are basically the same, and they are correspondingly provided with reserved slots 11, The first installation shaft 12 and the first installation hole 13 . Wherein, the reserved groove 11 is a U-shaped groove with an op...
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The invention relates to an alternating-current and direct-current interchangeable circuit breaker. The circuit breaker is characterized in that iron plates are arranged on two sides of the arc-striking plate, a mounting part for mounting the magnetic steel is arranged in the shell, the mounting part is positioned on the outer side of the arc-striking plate and is positioned between the two iron plates, and the magnetic steel can be mounted in the mounting part and is connected with the two iron plates. The circuit breaker has the advantages that the two iron plates are arranged on the two sides of the run-on plate, the mounting part is reserved between the iron plates and used for mounting the magnetic steel, the circuit breaker is an alternating-current circuit breaker when the magnetic steel is not mounted and is a direct-current circuit breaker when the magnetic steel is mounted, interchange and universality are facilitated, and compared with a mounting structure of a concentrating flux plate in a conventional direct-current circuit breaker, the structure is simpler, and installation is more convenient.
Description
technical field [0001] The invention relates to a circuit breaker, in particular to an AC and DC interchangeable circuit breaker. Background technique [0002] Circuit breakers are generally divided into DC circuit breakers and AC circuit breakers. The main difference between the two is that the arc extinguishing device of the DC circuit breaker is more complicated than that of the AC circuit breaker, because the magnitude and direction of the DC current in the DC line do not change with time. There is no natural zero-crossing point, so the arc generated when breaking is large. However, once the arc cannot be effectively extinguished, not only cannot the power be cut off immediately and effectively due to the action of the arc, but also the circuit breaker is easily burned out, so the DC circuit breaker is very important for arc extinguishing. The requirements are higher, and AC circuit breakers cannot be directly applied. [0003] In an AC circuit breaker, the arc extingui...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01H73/18H01H71/02H01H9/44H01H9/34H01H9/36
CPCH01H9/34H01H9/36H01H9/44H01H71/0207H01H73/18
Inventor 张新雨兰云生吴幼兵徐益强
Owner GACIA ELECTRICAL APPLIANCE