Circuit breaker electric operating mechanism circuit
A technology of electric operating mechanism and circuit breaker, which is applied in the direction of protection switch operation/release mechanism, etc., and can solve the problems of power consumption and mechanical size that cannot be expanded.
Active Publication Date: 2020-05-19
SHANGHAI LIANGXIN ELECTRICAL
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Problems solved by technology
[0003] The purpose of the present invention is to provide a circuit breaker electric operating mechanism circuit, which can reduce the power consumption of the electric operating mechanism when not in use, and the technical defect that the mechanical volume cannot be enlarged. Power consumption during work, and the use of electronic energy storage to meet the purpose of increasing the output power of the motor without changing the volume of the circuit breaker
Method used
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[0028] as attached figure 1 and 2 As shown in the circuit breaker electric operating mechanism circuit, it includes a bus power supply 1, the output end of the bus power supply 1 is connected to a multi-phase rectification circuit 2, the output end of the multi-phase rectification circuit 2 is connected to a power control circuit 3, and the power control circuit 3 The output terminal of the power supply circuit 4 is connected to the power supply circuit 4, and the power supply circuit 4 provides power supply for the micro control unit system 6 in the form of the system power supply 5, and the micro control unit system 6 is connected with the position detection circuit 7, and the position detection circuit 7 is connected with the motor 8, and the motor 8 Controlled by the motor drive circuit 9, the motor drive circuit 9 is connected to the micro control unit system 6, the micro control unit system 6 is connected with a sampling circuit 10, the sampling circuit 10 receives an ex...
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The invention discloses a circuit breaker electric operation mechanism circuit which includes a bus power supply (1) which has an output end which is connected to a multi-phase rectifying circuit (2). The multi-phase rectifying circuit (2) has an output end which is connected to a power supply control circuit (3). The power supply control circuit (3) has an output end which is connected to a power supply circuit (4) which has an output end which is connected to a system power supply (5). The system power supply (5) provides power to a micro-control unit system (6) which is connected to a position detection circuit (7). The position detection circuit (7) is connected to a motor (8). The motor (8) is controlled by a motor driving circuit (9). The micro-control unit system (6) is connected to a sampling circuit (19) which receives an external control signal. The micro-control unit system (6) is also connected to a charging and discharge control circuit (11). According to the invention, the circuit breaker electric operation mechanism circuit can reduce the power consumption when an electric operation mechanism is idle, and achieves the goal of making no changes to the size of the circuit breaker even when the output power of a motor increases by means of electronic energy storage.
Description
technical field [0001] The invention belongs to the technical field of circuit breaker circuits, and in particular relates to a circuit breaker electric operating mechanism circuit. Background technique [0002] Miniature circuit breaker, MCB for short, is the most widely used terminal protection device in electrical terminal power distribution devices. The electric operating mechanism of the circuit breaker is an accessory for remote automatic opening and closing of the circuit breaker. During the closing process of the electric operating mechanism, the time is long and the load is heavy. The electric operating mechanism needs a large power supply during the rotation process. When it is in place, the power consumption is still consumed when it is not working; The power supply falls and cuts off, which may cause the circuit breaker to be in the intermediate state of closing and opening, so that the electrical distance between the contacts of the circuit breaker is not enoug...
Claims
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IPC IPC(8): H01H71/10
CPCH01H71/10
Inventor 李向宇范建国宋福归
Owner SHANGHAI LIANGXIN ELECTRICAL