Air conditioner and capacity change judgment method thereof

A technology of an air conditioner and a gas-liquid separator, which is applied in the field of judgment of air conditioners and their capacity changes, can solve problems such as abnormality of air conditioner units, and achieve the effects of preventing abnormal situations and improving reliability and stability

Active Publication Date: 2015-06-24
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an air conditioner and its capacity change judging method to solve the technical problem that the air conditioner unit appears abnormal when the single and double cylinder switching fails

Method used

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  • Air conditioner and capacity change judgment method thereof
  • Air conditioner and capacity change judgment method thereof
  • Air conditioner and capacity change judgment method thereof

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Embodiment Construction

[0021] 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.

[0022] see figure 1 and figure 2 , according to the air conditioner of the present invention, comprising: a compressor 10, a four-way valve 20, an indoor heat exchanger 30 and an outdoor heat exchanger 40 connected in sequence; the first interface D of the four-way valve 20 and the outlet of the compressor 10 The ends are connected, the second port E of the four-way valve 20 is connected with the indoor heat exchanger 30, the third port S of the four-way valve 20 is connected with the inlet end of the compressor 10, and the fourth port C of the four-way valve 20 It is connected with the outdoor heat exchanger 40; the outlet end of the compressor 10 is connected with the inlet end of the variable capacity cylinder of the compressor 10, and the pipe...

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Abstract

The invention provides an air conditioner and a capacity change judgment method thereof. According to the present invention, the air conditioner comprises a compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger, which are sequentially connected. An outlet end of the compressor is communicated with an inlet end of a variable-capacity air cylinder of the compressor, and an electromagnetic valve is arranged on a pipeline between the outlet end of the compressor and the inlet end of the variable-capacity air cylinder of the compressor; the four-way valve is communicated with a fixed-capacity air cylinder of the compressor via a gas liquid separator; the controller detects the operating state of the electromagnetic valve and the actual operating state of the compressor. Whether the compressor fails in single- and double-cylinder switching or not is judged by comparing the power on-off state of the electromagnetic valve and the actual operating state of the compressor, so that abnormality of the air conditioner unit is avoided and reliability and stability of the air conditioner unit are improved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner and a method for judging capacity changes thereof. Background technique [0002] In the prior art, a variable-capacity dual-rotor compressor is used, and the dual-rotor mode is used at high frequencies, which can achieve high-capacity output and increase the cooling and heating speed. At low frequencies, a single-rotor mode can be selected to bypass one The rotor achieves low power. When the air conditioner load is small, it can work without stopping, maintain temperature stability, and have small fluctuations in temperature difference, energy saving and comfort. However, there is no such method for judging the single-cylinder and double-cylinder status of the unit during operation. When the single-cylinder and double-cylinder switching fails, if the unit cannot judge, it will cause system instability and affect the performance and reliability of the unit. . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/04F25B49/02F24F11/00F25B41/20
CPCF24F11/00F25B13/00F25B49/02F25B41/20
Inventor 刘群波李绍斌倪毅黄春宋培刚刘合心陈泽彬
Owner GREE ELECTRIC APPLIANCES INC
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