An emergency power-off braking motor

Abstract

The invention discloses an emergency power-off brake motor, which comprises: a motor chamber is arranged in the main body, a brake chamber communicating with the motor chamber is arranged on the upper side of the motor chamber, and a motor is fixed on the lower side wall of the motor chamber. , the brake chamber is provided with a brake device that will brake the motor shaft when the motor is powered off, and the right side of the brake chamber is provided with a linkage chamber that communicates with it. The side is provided with a power-off cavity communicating with it, and the power-off cavity is provided with a disconnecting device for disconnecting the connecting circuit when the motor suddenly loses power; the invention is easy to operate, low in manufacturing cost, and can be used for When the motor is suddenly powered off, its circuit is kept in an open circuit state for a long time to prevent the motor from being powered on suddenly and cause secondary losses, and at the same time brake its output shaft.

Description

technical field [0001] The invention relates to the technical field of motor protection, in particular to an emergency power-off braking motor. Background technique [0002] The motor refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque. As a power source for electrical appliances or various machinery, the motor needs to be installed with a protective device during operation. The function of the protection device is to provide comprehensive protection for the motor. When the motor is overloaded, lack of phase, stalled, short circuit, overvoltage, undervoltage, leakage, three-phase imbalance, overheating, bearing wear, stator and rotor eccentricity, it will give an alarm or The protection device, when the motor suddenly loses power, it needs to disconnect its circuit, so that when the motor suddenly receives power, it will not be tu...

AI Technical Summary

Problems solved by technology

[0002] The motor refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque. As a power source for electrical appliances or various machinery, the motor needs to be installed with a protective device during operation. The function of the protection device is to provide comprehensive protection for the motor. When the motor is overloaded, lack of phase, stalled, short circuit, overvoltage, undervoltage, leakage, three-phase imbalance, overheating, bearing wear, stator and rotor eccentricity, it will give an alarm or The protection device, when the motor suddenly loses power, it needs to disconnect its circuit, so that when the motor suddenly receives power, it will not be turned on, causing secondary losses. However, the current general protection device only disconnects the circuit and does not protect the motor. Output shaft for braking

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