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Air conditioner, alternating current motor and speed adjusting device thereof

A technology of AC motors and speed control devices, which is applied in the field of air conditioners, AC motors and their speed control devices, can solve problems such as electromagnetic noise, and achieve the effects of easy implementation, increased number of gears, and low cost

Active Publication Date: 2014-05-07
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an air conditioner, an AC motor and a speed regulating device thereof, so as to solve the problem of electromagnetic noise generated in the prior art when using the chopper speed regulation principle to regulate the speed of the existing AC motor

Method used

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  • Air conditioner, alternating current motor and speed adjusting device thereof
  • Air conditioner, alternating current motor and speed adjusting device thereof
  • Air conditioner, alternating current motor and speed adjusting device thereof

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Embodiment Construction

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0021] figure 1 A schematic diagram of the principle of the AC motor speed regulating device according to Embodiment 1 of the present invention is shown. Such as figure 1 As shown, the AC motor speed regulating device includes a main speed regulating unit 10 , an auxiliary speed regulating unit 20 and a gear selector 30 .

[0022] Wherein, the input end of the main speed regulating unit 10 forms the main speed regulating input end 11 connected with the controller, and the output end forms the main speed regulating output end 12 connected with a plurality of live wire terminals of the AC motor 50; the auxiliary speed regulating unit 20 has The first branch circuit 21 and the second branch circuit 22, the first branch circuit 21 and the second branc...

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Abstract

The invention provides an air conditioner, an alternating current motor and a speed adjusting device thereof. The alternating current motor speed adjusting device comprises that: a main speed regulation unit, wherein, an input terminal forms a main speed regulation input terminal which is connected with a controller, and an output terminal forms a main speed regulation output terminal which is connected with a plurality of live wire terminals of the alternating current motor; an auxiliary speed regulation unit which comprises a first branch and at least a second branch, wherein, the first branch and the second branch have a respective input terminal and a common output terminal, and the common output terminal forms an auxiliary speed regulation output terminal which is connected with a zero line of the alternating current motor; a shift selector, wherein, an input terminal of the shift selector forms an auxiliary speed regulation input terminal which is connected with the controller, and an output terminal is selectively connected with one of the respective input terminal of the first branch and the second branch, wherein, the first branch is a direct connecting branch and the second branch is a capacitive branch. According to the air conditioner, the alternating current motor and the speed adjusting device of the invention, a problem of electromagnetic noise when utilizing a chopper speed regulation principle to carry out speed regulation on a present alternating motor in the prior art is solved.

Description

technical field [0001] The invention relates to the field of alternating current motors, in particular to an air conditioner, an alternating current motor and a speed regulating device thereof. Background technique [0002] In the prior art, the principle of chopper speed regulation is mostly used to regulate the speed of the existing AC motor, so as to achieve the purpose of multi-speed speed regulation of the existing AC motor. [0003] However, in actual use, especially when the chopper speed regulation principle is used to regulate the speed of the AC motor in the air conditioner, the motor will generate low-frequency electromagnetic noise, especially when the AC motor is working at a low gear. Because this low-frequency electromagnetic noise is very penetrating, it can make people feel very uncomfortable. However, if the AC motor in the equipment using the chopper principle for speed regulation is replaced by a DC motor, there will be a problem of high cost. Contents...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P25/16
Inventor 罗生超汪俊勇郑海杰
Owner GREE ELECTRIC APPLIANCES INC
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