An Intelligent Circuit Breaker Driven by Ultrasonic Motor
A technology of intelligent circuit breaker and ultrasonic motor, which is applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc. To achieve the effect of simple and reliable transmission mode, easy control and fast response time
Active Publication Date: 2019-10-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
[0005] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide an intelligent circuit breaker driven by an ultrasonic motor, which effectively solves the problem of complex transmission mode between the motor and the knife switch in the intelligent circuit breaker
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[0026] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0027] refer to figure 1 , figure 2 , image 3 As shown, the present invention includes: a base 1, an end cover 4 is arranged on the base 1, and the two are connected by rivets; a stator 2 is arranged on the base 1, and the outer ring of the stator 2 is interference fit with the annular groove 12 on the base 1; 2 is provided with a bearing 7, and the outer ring of the bearing 7 cooperates with the inner ring of the stator 2; the bearing 7 is provided with a shaft 6, and the limiting section 19 of the shaft 6 is inserted into the first light hole of the end cover 4, and the positioning section 21 and the bearing 7 Cooperate; the rotor 3 is provided on the stator 2, and the inner hole of th...
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The invention discloses an intelligent circuit breaker driven by an ultrasonic motor. The intelligent circuit breaker comprises a base, an end cap, a stator and a rotor, wherein the stator and the rotor are vertically superposed between the base and the end cap. The stator is coaxial with the rotor. A pinion is arranged on a shaft, and a large gear and the pinion are arranged side by side. The large gear is arranged on the base through a circular shaft. The end cap is provided with a first light hole in which the shaft is arranged. The base is provided with a second light hole in which the circular shaft is arranged. The circuit breaker further comprises a motion conversion module, a drive control module and a sensor device. A part of the large gear is connected with the motion conversion module and drives the motion conversion module in different cases, so as to realize automatic opening and closing of a knife switch. The drive control module is arranged on the base, and an electronic component is arranged on the drive control module. The sensor is used to feed back a circuit signal, and the work of a system is in closed-loop control.
Description
technical field [0001] The invention belongs to the technical field of circuit breakers, in particular to an intelligent circuit breaker driven by an ultrasonic motor. Background technique [0002] A smart circuit breaker is a circuit protection device. When a circuit fault is detected, the knife switch can be disconnected to avoid danger; after a period of time after tripping, it will automatically detect whether the fault has been eliminated, and if it has been eliminated, it will automatically close to ensure the continuity of power consumption. [0003] The smart circuit breakers sold on the market at this stage all use electromagnetic motors to provide driving force to complete the automatic breaking and closing actions. Small electromagnetic motors have high speed and small torque. Therefore, in order to meet the performance requirements, a multi-stage gear reducer needs to be installed at the output end of the motor to reduce the speed and increase the torque; the sm...
Claims
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IPC IPC(8): H01H71/70H02N2/12
Inventor 郭咏朱华刘军
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS