PG motor detection device and detection method
A detection device and motor power supply technology, which is applied in the field of air conditioners, can solve the problems of low detection efficiency of PG motors, achieve the effect of improving the efficiency of factory inspection and reducing the after-sales failure rate
Active Publication Date: 2018-04-20
GREE ELECTRIC APPLIANCES WUHAN +1
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Problems solved by technology
[0005] In view of this, the present invention provides a PG motor detection device and detection method to solve the problem of low detection efficiency of PG motors in the prior art
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] An embodiment of the present invention provides a PG motor detection device, the PG motor detection device is mainly used for 10s on and off 10s power on and off experiments on the PG motor, to detect the life of the PG motor and electrical stress, etc., to reduce the PG The failure rate after the motor is used in the air conditioning system.
[0044] The PG motor detection device provided in this embodiment, such as figure 1 As shown, it includes a pl...
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The invention provides a PG motor detection device and detection method, comprising: a plurality of air conditioner mainboards, which can be connected to PG motors one by one; a first timer connected to some air conditioner mainboards, used to control the air conditioner mainboards Multiple on-off with the corresponding PG motor power line and the time of each on-off; the second timer connected to other air-conditioning main boards is used to control the multiple on-off of the air-conditioning main board and the corresponding PG motor feedback signal line and each time The on-off time; the first counter connected with the first timer and the second timer, the first counter is used to control the on-off and on-off times of the first timer and the second timer; multiple second A counter, the second counter is connected to the main board of the air conditioner in one-to-one correspondence, and is used to record and display the number of failures of the PG motor during the on-off process. The detection device and detection method provided by the invention improve the efficiency of the factory inspection of the PG motor and reduce the after-sale failure rate of the motor.
Description
technical field [0001] The invention relates to the technical field of air conditioners, and more specifically, to a PG motor detection device and detection method. Background technique [0002] A PG motor is a motor with a Hall element. The PG motor is equipped with a Hall plate and a magnetic ring. Under normal circumstances, when the PG motor runs for one cycle, the Hall element will output one or several feedback pulse signals, so that the microcontroller can calculate the current speed of the motor after receiving the feedback pulse signal. The single-chip microcomputer can automatically adjust the operating voltage of the PG motor according to the difference between the current actual speed of the motor and the target speed, so that the actual speed of the PG motor reaches the target speed. [0003] Since the speed of the PG motor is not affected by changes in the air conditioner load and power supply voltage, and the control accuracy is very high, it has been widely ...
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IPC IPC(8): G01R31/34
Inventor 覃兆丹张寻兵刘波刘爽饶建
Owner GREE ELECTRIC APPLIANCES WUHAN