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Air conditioner and compressor thereof shutdown control method and device

A control method and a technology of a control device, which are applied to AC motor deceleration devices, stop devices, AC motor control, etc., can solve problems affecting piping stress, piping vibration, etc., and achieve the effects of reducing piping stress and improving service life

Inactive Publication Date: 2016-09-21
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the effect of the refrigerant pressure, the compressor may oscillate and attenuate and stop, which will cause piping vibration and affect the stress of the piping.

Method used

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  • Air conditioner and compressor thereof shutdown control method and device
  • Air conditioner and compressor thereof shutdown control method and device
  • Air conditioner and compressor thereof shutdown control method and device

Examples

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Embodiment Construction

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] The method for controlling the shutdown of the compressor in the air conditioner, the device for controlling the shutdown of the compressor in the air conditioner, and the air conditioner according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0043] figure 1 is a flow chart of a method for controlling shutdown of a compressor in an air conditioner according to an embodiment of the present invention. Such as figure 1 As shown, the shutdown control metho...

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PUM

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Abstract

The invention discloses an air conditioner and compressor thereof shutdown control method and a device, and the method comprises the following steps: in a shutdown process of the air conditioner, when a compressor stop signal is received, a drive circuit of the compressor is controlled, so that a three-phase winding of the compressor is shorted, rotor braking of the compressor is controlled by braking torque generated at the time of shorting of the three-phase winding of the compressor, so that the compressor is made to stop. According to the invention, the drive circuit of the compressor is controlled to make the three-phase winding of the compressor to be shorted, so as the braking torque is generated, the rotor braking of the compressor is accelerated, then the compressor is made to quickly brake and be static, , and the above process is helpful for the reduction of the piping stress in the air conditioner and improvement of the service life of the piping stress in the air conditioner.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for controlling the shutdown of a compressor in an air conditioner, a device for controlling the shutdown of a compressor in an air conditioner, and an air conditioner. Background technique [0002] In the inverter air conditioner, since the rotor speed of the compressor cannot be detected directly, the compressor can only be controlled by a control method without a speed sensor. However, this method cannot achieve closed-loop control at low speeds. Therefore, the shutdown process of the inverter air conditioner generally uses the compressor to stop directly or directly stop after reducing the frequency to low-frequency operation, and cannot directly reduce the frequency to run to zero speed. [0003] For example, during the shutdown process of the air conditioner, when the stop signal of the compressor is received, the drive signal of the control compressor st...

Claims

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Application Information

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IPC IPC(8): H02P3/22
CPCH02P3/22H02H7/08H02P27/08H02P6/24F04D25/0693F04D27/00
Inventor 黄招彬朱良红
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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