High-voltage circuit breaker
A technology of high-voltage lines and circuit breakers, applied in the direction of electrical components, etc., can solve problems such as large contact resistance, fault occurrence, poor conductivity, etc.
Inactive Publication Date: 2012-04-11
CHANGSHU QIANGSHENG PUNCHING
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Problems solved by technology
The traditional knife switch usually includes a ceramic plate (seat), a handle, a contact blade, a contact blade bracket, an incoming wiring assembly, an outgoing wiring assembly and a protective cover. The incoming wiring assembly and the outgoing wiring assembly are respectively fixed at both ends of the ceramic plate. The knife bracket is fixed in the middle of the ceramic plate, one end of the contact knife is connected to the nail of the touch knife, and the bottom of the touch knife bracket is connected with a lug through a screw. The wire fastening frame, the incoming wiring assembly includes the wire fastening frame, the connecting piece and the contact whose cross-section is generally triangular, and the top opening is elastically clamped. It is connected and pressed by screws. Since the surface between the lug and the contact knife bracket and the contact can only be partially contacted, the contact resistance is large and the conductivity is poor. Therefore, when a large current flows for a long time, it will generate heat. , which in turn leads to failures and affects normal production
Method used
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[0011] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0012] Described in the present invention is a kind of high voltage circuit breaker, see figure 1 . A high-voltage circuit breaker, comprising a bottom plate 1, a handle 2, a moving contact 3, a static contact 4, and a bracket 5, the handle 2 is fixed on the moving contact 3, and the connection between the moving contact 3 and the bracket 4 A connecting shaft 6 is arranged between them, and the static contact 4 is fixed on the support 5 , and the support 5 is fixed on the bottom plate 1 .
[0013] Further, a spring is provided inside the moving contact 3 .
[0014] Further, the fixed contact 4 is provided with a guide hook.
[0015] Further, t...
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The invention discloses a high-voltage circuit breaker which comprises a bottom plate, a handle, a moving contact, a static contact and a support frame, wherein the handle is fixed on the moving contact; a connecting shaft is arranged between the moving contact and the support frame; the static contact is fixed on the support frame; the support frame is fixed on the bottom plate; and the moving contact adopts a double-sheet duplex copper bar. The high-voltage circuit breaker has improved electrical conductivity and is suitable for high-voltage current.
Description
technical field [0001] The invention relates to the field of switches, in particular to a high-voltage circuit breaker. Background technique [0002] Knife switch is the most common device for separating or inputting loads in power lines at present, and it is widely used. The traditional knife switch usually includes a ceramic plate (seat), a handle, a contact blade, a contact blade bracket, an incoming wiring assembly, an outgoing wiring assembly and a protective cover. The incoming wiring assembly and the outgoing wiring assembly are respectively fixed on both ends of the ceramic plate. The knife bracket is fixed in the middle of the ceramic plate, one end of the contact knife is connected to the nail of the contact knife, and the bottom of the contact knife bracket is connected with a lug through a screw. The wire fastening frame, the incoming wiring assembly includes the wire fastening frame, the connecting piece and the contact whose cross-section is generally triangul...
Claims
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IPC IPC(8): H01H21/54
Inventor 谢国强
Owner CHANGSHU QIANGSHENG PUNCHING