Circuit breaker capable of preventing busbar installation member drop-off
A busbar and mounting piece technology is applied in the field of circuit breakers with the busbar mounting piece anti-drop function, which can solve the problems of inconvenient installation and limited material elasticity.
Pending Publication Date: 2018-05-11
WENZHOU NEW BLUD SKY ELECRICIAL
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Problems solved by technology
[0004] Traditional busbar mounting parts rely on the elastic force of the material to be limited in the installation cavity. However, the elastic force of the material is limited. When the circuit breaker is removed from the bus bar, the bus bar mounting part buckled on the bus bar will be caught Take it out from the installation cavity, so that the busbar installation part is separated from the circuit breaker, which will bring inconvenience to the next installation. It is necessary to disassemble the housing of the circuit breaker and reinstall the busbar installation part back into the installation cavity.
Method used
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[0025] Such as figure 1 — Figure 6 As shown, the present invention discloses a circuit breaker with the function of anti-off of the busbar mounting part, including a housing 1, in which an operating handle 2, a contact system 3, a tripping system 4, and a tripping drive mechanism are arranged. 5 and the arc extinguishing chamber 6, the housing 1 is also provided with a bus bar installation part 7 fastened to the bus bar and an installation cavity 11 for installing the bus bar installation part 7, and the bus bar installation part 7 includes a The bent part 71 and the extension part 72 located on both sides of the bent part 71 and extending out of the housing 1 and clamped with the busbar, the housing 1 is located in the installation cavity 11 and is provided with a detachment preventing the busbar mounting part 7 from coming out of the installation cavity 11 Components, anti-detachment parts are added to prevent the busbar installation part 7 from coming out of the installat...
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The invention relates to a circuit breaker capable of preventing busbar installation member drop-off. The circuit breaker comprises a shell body; an operation handle, a contact head system, a trippingsystem, a tripping driving mechanism and an arc-extinguishing chamber are arranged in the shell body; a busbar installation member fastened onto a busbar and an installation chamber used for installing the busbar installation member are arranged in the shell body, the busbar installation member comprises a bent part positioned in the installation chamber and extension parts positioned on two sides of the bent part in such a way that the extension parts extend toward the outside of the shell body, and the shell body is provided with a drop-off preventing member which is arranged in the installation chamber, and the drop-off preventing member is used for preventing the busbar installation member from being separated from the installation chamber. Via adoption of the above solution, the invention provides the circuit breaker capable of preventing busbar installation member drop-off, and the circuit breaker can be used for preventing separation between the busbar installation member and the circuit breaker when the circuit breaker is detached from the busbar.
Description
technical field [0001] The invention relates to a circuit breaker, in particular to a circuit breaker with the function of preventing the installation part of the bus bar from coming off. 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. [0003] A traditional circuit breaker consists of a housing, which is equipped with an operating handle, a contact system, a tripping system, a tripping drive mechanism, and an arc extinguishing chamber. In order to facilitate the installation of the housing, the bottom of the housing is also provided with a A bus bar mounting part and a mounting cavity for installing the bus bar mounting part, the bus bar mounting part is a U-shaped member, and the bus bar mounting part includes a bending part located in the mounting cavity and a curved part loca...
Claims
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IPC IPC(8): H01H71/08
CPCH01H71/08
Inventor 黄立专林仁爱黄明光
Owner WENZHOU NEW BLUD SKY ELECRICIAL