A circuit breaker fault trip indicating mechanism
A technology of circuit breaker failure and indicating mechanism, which is applied in the direction of switchgear status indication, circuit, electrical components, etc., can solve the problems of inability to distinguish circuit disconnection, the inability of the alarm light to keep on, and the inconvenience of use.
Active Publication Date: 2021-11-19
NANJING APAITEK TECH
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Problems solved by technology
In actual use, for the two types of faults of overcurrent fault and leakage fault, RCBO will act to cut off the circuit, so the user cannot tell what kind of fault caused the circuit to be disconnected
[0003] In addition, usually when the RCBO detects a fault, it will turn on the alarm light, but because the RCBO will also send a trip signal when the fault is detected, the circuit will be cut off, so that the power supply of the alarm light will also be cut off, thus indicating the fault. The warning light cannot keep on constantly, which also causes inconvenience to use
Not only that, if a fault occurs when the circuit is cut off, it will be dangerous because the circuit is not cut off in time
Method used
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Embodiment
[0030] When the main circuit is short-circuited, the current on the electromagnet 4 increases, so that magnetic enhancement is generated to overcome the elastic force of the trip spring 6 and force the trip lever 5 to be pressed down;
[0031] Under normal circumstances: the trip lever 5 is successfully pressed down, the closing area 13 is separated from the lines at the left and right ends of the line slot 3, the opening area 12 is successfully inserted into the opening of the line slot 3, and then the insulating pad 15 is ejected by the compression spring 14, the distance The sensor 11 detects that the distance of the insulating pad 15 becomes larger, and the Hall sensor 8 detects that the current returns to normal, and then continues to maintain the normal connection of the electromagnetic switch 10, and the screw motor 17 and the indicator light 9 continue to short circuit;
[0032] Abnormal situation: The trip lever 5 is not successfully pressed down. At this time, the Hal...
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The invention discloses a fault trip indicating mechanism of a circuit breaker, which includes a housing, a tripping mechanism and an indicating mechanism installed on the housing, the tripping mechanism includes a tripping groove and a line groove vertically arranged to the tripping groove, and the tripping An electromagnet and a trip lever are arranged in the buckle groove, and the trip spring is sleeved on the top of the trip lever, and the other end of the trip spring is fixedly connected to a gasket. The indicating mechanism includes a Hall sensor, an indicator light, an electromagnetic switch, and a distance sensor. And the button battery, the wire groove is fixedly installed with the screw motor. The beneficial effect of the present invention is: the function of fault indication is added to the circuit breaker. light to judge whether this trip is a fault trip. At the same time, the indicator mechanism controls the separation of the electromagnetic switch through the Hall sensor and the distance sensor, so that the screw motor helps the trip lever to forcibly complete the separation from the main circuit. At the same time, the indicator light is on and the It can be used as a reminder and can be manually turned off.
Description
technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker fault trip indicating mechanism. Background technique [0002] The fault circuit breaker is used to quickly cut off the circuit and issue instructions at the same time when the line or electrical equipment fails. The fault type is, for example, an overcurrent fault or an electric leakage fault. Residual current operated circuit breaker (RCBO) is a commonly used fault circuit breaker, which can integrate the detection function of overcurrent fault and leakage fault, and is widely used in various household and industrial occasions. In actual use, for both overcurrent faults and leakage faults, the RCBO will act to cut off the circuit, so the user cannot tell what kind of fault caused the circuit to be disconnected. [0003] In addition, usually when the RCBO detects a fault, the alarm light will be turned on, but because the RCBO will also send a trip s...
Claims
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IPC IPC(8): H01H71/04
CPCH01H71/04H01H2071/048
Inventor 刘凯龚叶芮国强
Owner NANJING APAITEK TECH