Wind speed control circuit, device and method for air conditioner motor

A wind speed control and circuit technology, applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of large installation space, motor malfunction, motor burnout, etc., to avoid motor burnout, prevent motor malfunction, The effect of reducing the number of parts
CN103338005AInactive Publication Date: 2013-10-02NINGBO AOKESI ELECTRIC EQUIP FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO AOKESI ELECTRIC EQUIP FACTORY
Publication Date
2013-10-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a wind speed control circuit, device and method for an air conditioner motor. The wind speed control circuit comprises a relay connection control circuit, a single chip used for controlling the relay connection control circuit and a wind speed gear circuit connected with an alternating-current motor, wherein the relay connection control circuit comprises a first relay and a second relay; the second relay is connected between the first relay and the wind speed gear circuit; and the two output terminals of the first relay are connected with the two input terminals of the second relay, with moving contacts respectively. According to the wind speed control circuit, the three or more-gear wind speed control is achieved, the number of devices is reasonably reduced, the cost is effectively lowered, a motor fault caused by electromagnetic interference is effectively prevented, and the phenomenon of motor burnout is avoided.
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Description

technical field

[0001] The invention relates to the technical field of the household appliance industry, in particular to a circuit, a device and a wind speed control method for controlling the wind speed of an air conditioner motor. Background technique

[0002] AC motors are widely used in the field of home appliances because of their simple structure, convenient manufacture, reliable performance and low cost. In the air-conditioning industry, there are many types of AC motors used, and their control methods are also different. The wind speed control of AC motors in the industry is often realized by a single relay. Different wind speed gears use different relay control modes. This design method not only has high cost, but also occupies a large installation space, and its electromagnetic interference is likely to cause malfunction of the motor, which will seriously cause the motor to burn out. Contents of the invention

[0003] The present invention mainly provides a cir...

Claims

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