Motor intelligent power-saving protector

Abstract

The disclosed intelligent power-saving protective device for motor comprises: a primary power circuit with output end connected with the input of following two circuits, a switch power circuit with output end connected with input end of all following members, a power drive circuit with input end connected with the PWM generating circuit and microprocessor and the switch power, a microprocessor with input end connected all of the power drive circuit, protective circuit, the power detection, the parameter controller and the switch power circuit; a PWM generating circuit, a protective circuit, a power detection circuit, a function extension interface, a parameter setting controller, and a display. This invention is convenient and reliable.

Description

technical field [0001] The invention relates to an electric motor power-saving protection device, in particular to an electric motor intelligent power-saving protection device in industrial and civil mechanical equipment. Background technique [0002] Most of the mechanical equipment in all walks of life use electric motors as transmission devices. According to the standard, when almost all mechanical equipment is configured with a motor, the motor must be selected according to the maximum load of the mechanical equipment during actual operation, and a certain margin is reserved for the power configuration of the motor to meet the requirements of the actual operation of the mechanical equipment. the greatest need in the process. At the same time, in the actual operation process of mechanical equipment, it is generally operated under the condition of unsteady load or load changing frequently. On the other hand, when the motor starts, it will generate a large instantaneous c...

AI Technical Summary

Problems solved by technology

Since the device does not have the functions of automatic load tracking and real-time automatic regulation, it is generally not suitable for loads that change frequently during operation, and cannot achieve the purpose of saving electricity; It is cumbersome, and different parameter values ​​must be preset according to different needs, so the operation is difficult and not easy to popularize; third, the man-machine dialogue method is a digital code, which is not intuitive and difficult for the operator to remember, which increases the difficulty of operation; fourth , the function expansion is limited, and the function expansion needs to be realized through peripheral devices, which increases the purchase cost of the user; fifth, the design of the power component protection circuit is unreasonable, and it is easy to burn the power component, so the product quality cannot be reliably guaranteed

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