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A control method for starting an air conditioner compressor and the air conditioner

A control method and compressor technology, which are applied in space heating and ventilation, heating and ventilation control systems, heating methods, etc., can solve problems such as high compressor pressure ratio, failure to start air conditioners, and poor start of air conditioners. The effect of improving the startup rate and the success rate of startup

Active Publication Date: 2022-05-06
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the ambient temperature of the air conditioner and the installation environment are relatively harsh, the pressure in the compressor is relatively high when the air conditioner is started, and the problem of poor start of the air conditioner or failure to start the air conditioner often occurs, thereby reducing the success rate of starting the air conditioner compressor.

Method used

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  • A control method for starting an air conditioner compressor and the air conditioner
  • A control method for starting an air conditioner compressor and the air conditioner
  • A control method for starting an air conditioner compressor and the air conditioner

Examples

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Effect test

no. 1 example

[0030] see figure 1 , which is a schematic flowchart of a control method for starting a compressor of an air conditioner provided in the first embodiment of the present invention. The control method for starting the compressor of the air conditioner includes, for example:

[0031] Step S10: Acquiring a power-on instruction;

[0032] Step S20: Detect system high pressure P d and system low pressure P s ;

[0033] Step S30: Calculate pressure ratio P = system high pressure P d / system low pressure P s ;

[0034] Step S40: According to the pressure ratio P, an initial start-up current of the compressor is set.

[0035] After obtaining the start-up command, first detect the system high pressure P d and system low pressure P s , followed by the system high pressure P d with the system low pressure pressure P s Calculate the high and low pressure ratio P of the system, and finally set the initial starting current of the compressor according to the pressure ratio P. The c...

no. 2 example

[0041] see image 3 , the system high pressure P d >Second preset high pressure P d2 , first judge the magnitude relationship between the pressure ratio P and the preset pressure ratio threshold, and then set the initial starting current of the compressor according to the magnitude relationship between the pressure ratio P and the preset pressure ratio threshold. Wherein, the preset pressure ratio threshold includes the first preset pressure ratio P b1 and the second preset pressure ratio P b2 , the first preset pressure ratio P b1 ≤The second preset pressure ratio P b2 .

[0042] Specifically, the pressure ratio Pb1 , set the initial starting current of the compressor as I b1 ;Pressure ratio P>second preset pressure ratio P b2 , set the initial starting current of the compressor as I b2 ;The first preset pressure ratio P b1 ≤Pressure ratio P≤Second preset pressure ratio P b2 , set the initial starting current of the compressor as I b3 = I b1 +[(I b2 -I b1 ) / (P ...

no. 3 example

[0044] see Figure 4 , the first preset high pressure P d1 ≤The system high pressure P d ≤The second preset high pressure P d2 , first judge the magnitude relationship between the pressure ratio P and the preset pressure ratio threshold, and then set the initial starting current of the compressor according to the magnitude relationship between the pressure ratio P and the preset pressure ratio threshold. Wherein, the preset pressure ratio threshold includes the first preset pressure ratio P c1 and the second preset pressure ratio P c2 , the first preset pressure ratio P c1 ≤The second preset pressure ratio P c2 .

[0045] Specifically, the pressure ratio Pc1 , set the initial starting current of the compressor as I c1 ;Pressure ratio P>second preset pressure ratio P c2 , set the initial starting current of the compressor as I c2 ;The first preset pressure ratio P c1 ≤Pressure ratio P≤Second preset pressure ratio P c2 , set the initial starting current of the compres...

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Abstract

Embodiments of the present invention provide a control method for starting a compressor of an air conditioner and an air conditioner. The control method for starting the compressor of the air conditioner includes: obtaining a start-up command; if there is a start-up command, detecting the system high pressure P d and system low pressure P s ; Determine the pressure ratio P when the air conditioner compressor starts, and set the compressor initial starting current according to the pressure ratio P; wherein, the pressure ratio P=P d / P s . The invention achieves the technical effect of improving the start-up success rate of the air conditioner compressor.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for controlling the startup of an air conditioner compressor and an air conditioner. Background technique [0002] Air conditioners, also known as air conditioners, refer to equipment that uses manual means to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in buildings or structures. Air conditioners use the principle of refrigerant phase change, that is, when the refrigerant changes from a gaseous state to a liquid state, a large amount of heat is released. When changing from a liquid state to a gas state, it will absorb a large amount of heat to cool or heat the room. As the refrigeration heart of the air conditioner, the compressor is used to compress and drive the refrigerant in the refrigerant circuit. [0003] However, when the ambient temperature of the air conditioner and the installation environment are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/86F24F11/88F24F140/12
CPCF24F11/30F24F11/64F24F11/86F24F11/88F24F2140/12
Inventor 陈红李发顺邓哲张姝赟
Owner NINGBO AUX ELECTRIC
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