A motor stall protection method and device
A motor stalling and protection device technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve problems such as failure to protect stalling abnormalities in time, lack of stalling protection, temperature protection hysteresis, etc., to achieve temperature protection mode Lag, simple structure, fast response effect
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[0034] This embodiment provides a motor stall protection device, such as figure 1 As shown, it includes a control module, a vibration sensor and a storage module. Both the vibration module and the storage module are connected to the control module in communication; the vibration sensor is used to collect the real-time vibration waveform of the motor; the storage module is used to store the pre-collected Reference vibration waveform: the control module is used to compare the real-time vibration waveform of the motor with the reference vibration waveform under normal operation of the motor, and send a protection signal when the difference between the two exceeds a preset value.
[0035] As a more specific implementation, the vibration sensors are arranged in the bearing chambers at the front and rear ends of the motor.
[0036] As a further embodiment, the control module communicates with the power switch of the motor; in addition, the device can also include an alarm whistle an...
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