A method for overheating protection of continuous rotating pan-tilt motor
A technology for motor temperature and overheating protection, applied in emergency protection circuit devices, electrical components, etc., can solve the problems of inability to protect the motor, limit the running time, cannot be set out of thin air, and inconvenient for users to operate.
Active Publication Date: 2016-06-08
北京松盛元环境科技有限公司
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Problems solved by technology
In this regard, it is often used to limit the running time of the motor to protect the motor from overheating, but the length of the limited running time cannot be set out of thin air, otherwise it will bring a lot of inconvenience to the user's operation
For example, when the gimbal is operating, the continuous rotation time may not be long, but when a moving target needs to be monitored for a long time, the gimbal motor needs to work intermittently for several hours. In this case, the simple motor time-limited processing is obviously not effective Ground protects the motor
Method used
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Experimental program
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Embodiment Construction
[0022] The overheating protection method of the continuous rotating pan / tilt motor described in the embodiment of the present invention, firstly, in the security system, there are two motors inside the pan / tilt of the camera: a horizontal motor and a vertical motor, in the horizontal direction of the omnidirectional integrated pan / tilt There is no limit, and it can rotate continuously for multiple circles; in the vertical direction, a limit switch is installed at the end of the up and down travel, and when the motor runs to the limit switch, the switch will cut off the power of the motor; the temperature change of the gimbal motor is related to the The limit switch is almost irrelevant, because the gimbal rarely touches the limit switch during normal operation. Since the vertical direction has a limit switch, the single running time of the vertical motor of the gimbal will not be too long; but the horizontal direction can Continuous rotation, limit switches cannot be installed,...
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The invention relates to a temperature overheating protection method for a continuously rotating pan-tilt motor. (1) Use a software algorithm to simulate the temperature change of the motor, set a basic calculation formula and perform the calculation; (2) According to the actual working condition of the motor, according to a certain time interval, after steps (1), real-time calculation The actual temperature of the cloud platform motor, when the temperature rises, the cycle calculation time interval is 250ms, and when the temperature drops, the cycle calculation time interval is 1000ms; (3) According to the calculated value of the motor armature temperature, it is consistent with the armature specified by the motor manufacturer The limit working temperature is compared, if the temperature is too high, the power-off protection will be carried out, and the user operation will be temporarily terminated; (4) Restore the working state of the motor: After the temperature of the motor armature drops to the allowable working range, it can continue to accept user operation instructions. The beneficial effects of the invention are: the protection operation of the motor is more scientific and reasonable, which not only ensures the safety of the motor, but also ensures the high efficiency of the motor.
Description
technical field [0001] The invention relates to the technical field of motor control, in particular to a method for overheating protection of a continuously rotating pan-tilt motor. Background technique [0002] At present, while the motor is being produced, the related issues of motor temperature protection are also raised. In most cases, if the temperature of the motor is too high during operation, the motor should be stopped to protect the motor and reduce the loss to a minimum. minimum. Obviously, the overheating protection related to the temperature of the motor is a very important part of the motor control, mainly because once the motor burns out, the maintenance and replacement are quite complicated and cumbersome, which directly terminates the operation of the equipment. The existing commonly used motor overheating protection measure is to install a temperature switch in the motor. When the temperature of the motor is overheated, the temperature switch will automati...
Claims
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IPC IPC(8): H02H7/085
Inventor 康涛
Owner 北京松盛元环境科技有限公司