Circuit breaker and circuit breaker state detection method
A technology of circuit breaker and circuit breaker body, which is used in circuit breaker testing, switchgear status indication, instruments, etc., can solve problems such as low safety and reliability, failure of opening and closing, and contacts not in place.
Pending Publication Date: 2021-05-07
SHANGHAI LIANGXIN ELECTRICAL
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Problems solved by technology
[0004] However, in practical applications, the circuit breaker may have the risk of failure of opening and closing, such as manual operation or contact failure after overload opening, etc., and the safety and reliability are low.
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[0054] The technical solutions in the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the present disclosure.
[0055] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.
[0056] Before explaining the present disclosure in detail, the application scenarios of the present disclosure will be introduced first.
[0057] Please refer to figure 1 as well as figure 2 , figure 1 It is a schematic structural diagram of a circuit breaker provided by the present disclosure, figure 2 It is a schematic structural diagram of a control circuit 104 provided in the present disclosure. The circuit breaker includes a circuit breaker body 100, an actuator 101, a moving contact 102, a static contact 103, and a control circuit 104. The control circuit 104 in...
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The invention provides a circuit breaker and a circuit breaker state detection method, and relates to the technical field of low-voltage electric appliances. The circuit breaker comprises a circuit breaker body, an execution mechanism, a moving contact, a static contact and a control circuit; the control circuit comprises an acquisition unit and a control unit, the acquisition unit comprises a first acquisition end and a second acquisition end, when the moving contact moves to a switching-on position, the moving contact is in contact with the static contact, and when the moving contact moves to a switching-off position, the moving contact is separated from the static contact, and the first acquisition end is electrically connected with the static contact or the moving contact; when the moving contact moves to a closing position, the second acquisition end is electrically connected with the moving contact, and the acquisition unit is used for detecting a first electric signal of the first acquisition end and a second electric signal of the second acquisition end and sending the first electric signal and the second electric signal to the control unit, and the control unit determines the opening and closing state of the circuit breaker based on the first electric signal and the second electric signal. The state of the circuit breaker can be accurately detected, and the safety and reliability of the circuit breaker are improved.
Description
technical field [0001] The present disclosure relates to the technical field of low-voltage electrical appliances, and in particular, to a circuit breaker and a method for detecting the state of the circuit breaker. Background technique [0002] A circuit breaker (or air switch) is 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. It is widely used in various power distribution scenarios. [0003] In the prior art, the circuit breaker includes a static contact and a moving contact. By controlling the movement of the moving contact to the closing position or the opening position, the static contact and the moving contact are respectively contacted or separated. Correspondingly, The circuit breaker is in different states such as closing or opening to play the role of switch. [0004] However, in practical applications, the circuit breaker...
Claims
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IPC IPC(8): H01H71/04H01H9/16G01R31/327
CPCG01R31/3277H01H9/167H01H71/04H01H2071/044
Inventor 谢建波于贻鹏张燕
Owner SHANGHAI LIANGXIN ELECTRICAL