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

Inactive Publication Date: 2013-10-02
NINGBO AOKESI ELECTRIC EQUIP FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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

Examples

Experimental program
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Effect test

Embodiment

[0025] Embodiment: A circuit for air-conditioning motor wind speed control in this embodiment is as follows image 3 As shown, it includes a relay connection control circuit 101, a single-chip microcomputer for controlling the relay connection control circuit 101, and a wind speed gear circuit 102 connected to an AC motor. The relay connection control circuit 101 includes a first relay RY1 and a second relay RY2, One end of the first relay RY1 is connected to the mains AC live line AC-L, and the other end is provided with two output terminals with static contacts. The second relay RY2 is connected between the first relay RY1 and the wind speed gear circuit 102. The first The two output terminals of the relay RY1 are respectively connected to the two input terminals with moving contacts of the second relay RY2, and the first relay RY1 has a contact of an input terminal and a contact of an output terminal closed under normal conditions and when it is closed. The second relay RY2...

Embodiment 2

[0037] Embodiment 2: A circuit for air-conditioning motor wind speed control in this embodiment is as follows figure 1 , 5 , 6, the second relay RY2 includes contacts 1, 2, 4, 5, 6 connected between its input terminal and output terminal, and pins 7 and 8 connected to both ends of its coil, wherein the second The contacts 1, 2 and contacts 4, 5, 6 of the relay RY2 are respectively arranged between the two pairs of input terminals and output terminals of the second relay RY2, the second relay RY2 of this embodiment is not provided with the contact 3, the second The contacts 1 and 2 of the relay RY2 are in an open state under normal conditions, and are in a closed state under dynamic conditions. The contact 2 of the second relay RY2 is always connected to the wind speed gear circuit 102 .

[0038] A wind speed control device for an air conditioner motor according to an embodiment of this book includes the AC motor, an AC fan electrically connected to the AC motor, and a circuit...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/18
Inventor 吴淼
Owner NINGBO AOKESI ELECTRIC EQUIP FACTORY
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