Outdoor unit of air conditioner and refrigerant filling control method of air conditioner

An air conditioner outdoor unit and refrigerant technology, which is applied to the refrigerant charging control of air conditioners and the field of air conditioner outdoor units. It can solve the problems that the refrigerant cannot be guaranteed to be consistent and affect the use effect and service life of the air conditioning system, so as to reduce the refrigerant calculation process and ensure reliability. Performance and use effect, the effect of accurate refrigerant addition

Active Publication Date: 2015-10-28
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an air conditioner outdoor unit and a refrigerant charging control method for an air conditioner, aiming at solving the problem that the existing technology cannot ensure that the amount of additional refrigerant is consistent with the actual demand, which seriously affects the use effect of the air conditioning system and Technical issues of service life

Method used

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  • Outdoor unit of air conditioner and refrigerant filling control method of air conditioner
  • Outdoor unit of air conditioner and refrigerant filling control method of air conditioner
  • Outdoor unit of air conditioner and refrigerant filling control method of air conditioner

Examples

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example 1

[0074] Such as Figure 6 As shown, the refrigerant charging control method may include the following steps:

[0075] Step S101, detecting the refrigerant balance pressure P1 of the refrigerant circulation system;

[0076] Step S102, obtaining the preset minimum start-up pressure Ps1 corresponding to the outdoor ambient temperature;

[0077] Step S103, judging whether the pressure P1 is greater than or equal to the pressure Ps1; if yes, go to step S105, otherwise go to step S104;

[0078] Step S104, controlling the solenoid valve 1071 to open;

[0079] Step S105, control the solenoid valve 1071 to close, and control the compressor 101 to start cooling operation for 15 minutes;

[0080] Step S106, judging whether the operating high pressure Pc of the refrigerant circulation system is greater than or equal to the preset maximum pressure Ps2 corresponding to the outdoor ambient temperature; if yes, go to step S109, otherwise go to step S107;

[0081] Step S107, judging whether...

example 2

[0086] Such as Figure 7 As shown, the refrigerant charging control method may include the following steps:

[0087] Step S201, detecting the refrigerant balance pressure P1 of the refrigerant circulation system;

[0088] Step S202, obtaining the preset minimum start-up pressure Ps1 corresponding to the outdoor ambient temperature;

[0089] Step S203, judging whether P1 is greater than or equal to Ps1; if yes, go to step S205, otherwise go to step S204;

[0090] Step S204, controlling the opening of the electronic expansion valve 1073 with an opening degree of 400P;

[0091] Step S205, controlling the electronic expansion valve 1073 to close, and controlling the compressor 101 to start cooling operation for 15 minutes;

[0092] Step S206, judging whether the operating high pressure Pc of the refrigerant circulation system is greater than or equal to the preset maximum pressure Ps2 corresponding to the outdoor ambient temperature; if yes, go to step S209, otherwise go to ste...

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Abstract

The invention discloses an outdoor unit of an air conditioner. The outdoor unit of the air conditioner comprises a compressor, an outdoor heat exchanger, a low-pressure tank and a controller, and further comprises a refrigerant filling pipeline, wherein one end of the refrigerant filling pipeline is connected with an inlet of the low-pressure tank, and the other end is used for connecting with a refrigerant storage tank; a filling switch is arranged on the refrigerant filling pipeline; and the controller controls the opening of the filling switch under the refrigerating operation of the compressor, and controls the closing of the filling switch when determining sufficient refrigerant of a refrigerant circulating system of the air conditioner. The invention further discloses a refrigerant filling control method of the air conditioner. The outdoor unit of the air conditioner and the refrigerant filling control method of the air conditioner enable the adding quantity of refrigerant to be accurate in the installation completion or the maintenance of the air conditioner, and guarantee the reliability and the use effect of the air conditioner.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an outdoor unit of an air conditioner and a refrigerant charging control method for the air conditioner. Background technique [0002] After the air conditioner is installed, it is generally necessary to add a part of refrigerant to the entire air conditioning system according to the actual situation, or to add refrigerant to the entire system after the system refrigerant has been discharged due to maintenance. At present, most manufacturers specify the additional amount of refrigerant per unit of pipe diameter, and then calculate the additional amount of piping, the amount of refrigerant that comes with the outdoor unit, and the additional amount based on the length of the pipe. However, for many projects, due to the loss of drawings, irregular installation, or differences between installation and design, the actual amount of refrigerant added to the air conditioner will be incon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F25B45/00
CPCF24F1/26F24F11/89F25B41/00F25B45/00
Inventor 舒文涛许永锋熊美兵李波杨元涛万永强钱小龙
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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