US-20260126227-A1 - AIR CONDITIONER OUTDOOR UNIT, REFRIGERANT CHARGING METHOD, DEVICE, AND STORAGE MEDIUM

Abstract

An air conditioner outdoor unit, a refrigerant charging method, a device, and a storage medium are provided. The air conditioner outdoor unit includes a compressor, a one-way valve, a heat exchanger, and a first shutoff valve. The compressor has an output port connected to the heat exchanger through the one-way valve and an input port connected to the first shutoff valve. A first pipeline is arranged between the one-way valve and the heat exchanger. A second pipeline is arranged between the compressor and the first shutoff valve. Each of the first pipeline, the second pipeline, and the compressor is configured to contain a refrigerant.

Inventors

• Wenrui JIN
• Zhongyu PAN
• Kongxiang WU
• Zhitao Xu
• Guozhu ZHONG

Assignees

• GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.
• MIDEA GROUP CO., LTD.

Dates

Publication Date

20260507

Application Date

20251105

Priority Date

20241105

Claims (20)

1. 1 . An air conditioner outdoor unit comprising a compressor, a one-way valve, a heat exchanger, and a first shutoff valve, wherein: the compressor has an output port connected to the heat exchanger through the one-way valve and an input port connected to the first shutoff valve; a first pipeline is arranged between the one-way valve and the heat exchanger; a second pipeline is arranged between the compressor and the first shutoff valve, and each of the first pipeline, the second pipeline, and the compressor is configured to contain a refrigerant.
2. 2 . The air conditioner outdoor unit according to claim 1 , wherein a liquid level of the refrigerant in the compressor is lower than an air inlet of the compressor.
3. 3 . A refrigerant charging method for an air conditioner outdoor unit, wherein the air conditioner outdoor unit comprises a compressor, a one-way valve, a heat exchanger, and a first shutoff valve, wherein the compressor has an output port connected to the heat exchanger through the one-way valve and an input port connected to the first shutoff valve, and wherein the refrigerant charging method comprises: obtaining a first refrigerant density and a first volume of a first pipeline, the first pipeline being arranged between the one-way valve and the heat exchanger; determining a first refrigerant charging amount for the first pipeline based on the first volume and the first refrigerant density; obtaining a second refrigerant density, an internal volume of the compressor, and a second volume of a second pipeline, the second pipeline being arranged between the compressor and the first shutoff valve; and determining a second refrigerant charging amount for the compressor and the second pipeline based on the second volume, the internal volume of the compressor, and the second refrigerant density.
4. 4 . The refrigerant charging method according to claim 3 , wherein the obtaining the first refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the first pipeline and a withstand pressure at a most pressure-vulnerable part of the first pipeline; and determining the first refrigerant density based on the maximum ambient temperature, the withstand pressure, and a first predetermined mapping relationship among temperature, pressure, and density.
5. 5 . The refrigerant charging method according to claim 4 , wherein the first predetermined mapping relationship comprises a state equation representing a variation of a refrigerant density with an ambient temperature and a withstand pressure, or a table showing the variation of the refrigerant density with the ambient temperature and the withstand pressure.
6. 6 . The refrigerant charging method according to claim 3 , wherein the obtaining the second refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the second pipeline and a withstand pressure at a most pressure-vulnerable part of the second pipeline; and determining the second refrigerant density based on the maximum ambient temperature, the withstand pressure, and a second predetermined mapping relationship among temperature, pressure, and density.
7. 7 . The refrigerant charging method according to claim 6 , wherein the second predetermined mapping relationship comprises a state equation representing a variation of a refrigerant density with an ambient temperature and a withstand pressure, or a table showing the variation of the refrigerant density with the ambient temperature and the withstand pressure.
8. 8 . A refrigerant charging method for an air conditioner outdoor unit, wherein the air conditioner outdoor unit comprises a compressor, a one-way valve, a heat exchanger, and a first shutoff valve, wherein the compressor has an output port connected to the heat exchanger through the one-way valve and an input port connected to the first shutoff valve, a first pipeline being arranged between the one-way valve and the heat exchanger, and a second pipeline being arranged between the compressor and the first shutoff valve, and wherein the refrigerant charging method comprises: obtaining a predetermined cooling capacity range of the air conditioner outdoor unit; and determining a first refrigerant charging amount for the first pipeline and a second refrigerant charging amount for the compressor and the second pipeline based on the predetermined cooling capacity range and a third predetermined mapping relationship between a cooling capacity range and a refrigerant charging amount.
9. 9 . A computing device comprising: a processor; and at least one memory having a computer program stored thereon, wherein the computer program, when executed by the processor, causes the processor to implement steps of the refrigerant charging method according to claim 3 .
10. 10 . The computing device according to claim 9 , wherein the obtaining the first refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the first pipeline and a withstand pressure at a most pressure-vulnerable part of the first pipeline; and determining the first refrigerant density based on the maximum ambient temperature, the withstand pressure, and a first predetermined mapping relationship among temperature, pressure, and density.
11. 11 . The computing device according to claim 9 , wherein the obtaining the second refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the second pipeline and a withstand pressure at a most pressure-vulnerable part of the second pipeline; and determining the second refrigerant density based on the maximum ambient temperature, the withstand pressure, and a second predetermined mapping relationship among temperature, pressure, and density.
12. 12 . A computing device comprising: a processor; and at least one memory having a computer program stored thereon, wherein the computer program, when executed by the processor, causes the processor to implement steps of the refrigerant charging method according to claim 8 .
13. 13 . An electronic device comprising the computing device according to claim 9 .
14. 14 . The electronic device according to claim 13 , wherein the obtaining the first refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the first pipeline and a withstand pressure at a most pressure-vulnerable part of the first pipeline; and determining the first refrigerant density based on the maximum ambient temperature, the withstand pressure, and a first predetermined mapping relationship among temperature, pressure, and density.
15. 15 . The electronic device according to claim 13 , wherein the obtaining the second refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the second pipeline and a withstand pressure at a most pressure-vulnerable part of the second pipeline; and determining the second refrigerant density based on the maximum ambient temperature, the withstand pressure, and a second predetermined mapping relationship among temperature, pressure, and density.
16. 16 . An electronic device comprising the computing device according to claim 8 .
17. 17 . A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, causes the processor to implement steps of the refrigerant charging method according to claim 3 .
18. 18 . The computer-readable storage medium according to claim 17 , wherein the obtaining the first refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the first pipeline and a withstand pressure at a most pressure-vulnerable part of the first pipeline; and determining the first refrigerant density based on the maximum ambient temperature, the withstand pressure, and a first predetermined mapping relationship among temperature, pressure, and density.
19. 19 . The computer-readable storage medium according to claim 17 , wherein the obtaining the second refrigerant density comprises: obtaining a maximum ambient temperature for a refrigerant in the second pipeline and a withstand pressure at a most pressure-vulnerable part of the second pipeline; and determining the second refrigerant density based on the maximum ambient temperature, the withstand pressure, and a second predetermined mapping relationship among temperature, pressure, and density.
20. 20 . A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, causes the processor to implement steps of the refrigerant charging method according to claim 8 .

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to Chinese Patent Application No. 202411571216.3, filed with China National Intellectual Property Administration on Nov. 5, 2024 and entitled “AIR CONDITIONER OUTDOOR UNIT, REFRIGERANT CHARGING METHOD, DEVICE, AND STORAGE MEDIUM”, the entire contents of which are incorporated herein by reference for all purposes. No new matter has been introduced. FIELD The present disclosure relates to the technical field of air conditioners, and in particular, to an air conditioner outdoor unit, a refrigerant charging method, a computing device, an electronic device, and a computer-readable storage medium. BACKGROUND In the related art, a refrigerant pipeline between a one-way valve and a first shutoff valve is in maintained in a closed state to form a blind pipe section. Charging of refrigerant in an air conditioner is performed in this blind pipe section of the air conditioner outdoor unit. However, if an excessive amount of refrigerant is charged into the blind pipe section, and the air conditioner outdoor unit is exposed to high temperature during transportation, the air pressure generated by the excessive refrigerant is likely to exceed the pressure-bearing capacity of the blind pipe section, leading to pipe burst and subsequent damage to the air conditioner outdoor unit. SUMMARY Embodiments of the present disclosure provide an air conditioner outdoor unit, a refrigerant charging method, a computing device, an electronic device, and a computer-readable storage medium, which can solve a problem that the air conditioner outdoor unit is prone to pipe burst when exposed to high temperature during transportation due to the excessive refrigerant charged in the blind pipe section. The air conditioner outdoor unit provided according to the embodiments of the present disclosure includes a compressor, a one-way valve, a heat exchanger, and a first shutoff valve. The compressor has an output port connected to the heat exchanger through the one-way valve, and an input port connected to the first shutoff valve. A first pipeline is arranged between the one-way valve and the heat exchanger. A second pipeline is arranged between the compressor and the first shutoff valve. Each of the first pipeline, the second pipeline, and the compressor is configured to contain a refrigerant. In this way, under the same refrigerant charging amount, the above-mentioned air conditioner outdoor unit may store the refrigerant separately in the first pipeline, and in the second pipeline and the compressor. In this way, during the transportation of the air conditioner outdoor unit, a pressure generated when the refrigerant in the air conditioner outdoor unit is exposed to high temperature is lower than a pressure-bearing capacity of the refrigerant pipeline, which can reduce the occurrence of pipe burst and avoid damage to the air conditioner outdoor unit. In some embodiments, a liquid level of the refrigerant in the compressor is lower than an air inlet of the compressor. In this way, by setting the liquid level of the refrigerant in the compressor to be lower than the air inlet of the compressor, a liquid refrigerant can be prevented from entering the air inlet and causing liquid slugging in the compressor. The refrigerant charging method according to the embodiments of the present disclosure is applied to an air conditioner outdoor unit. The air conditioner outdoor unit includes a compressor, a one-way valve, a heat exchanger, and a first shutoff valve. The compressor has an output port connected to the heat exchanger through the one-way valve, and an input port connected to the first shutoff valve. The refrigerant charging method includes: obtaining a first refrigerant density and a first volume of a first pipeline, the first pipeline being arranged between the one-way valve and the heat exchanger; determining a first refrigerant charging amount for the first pipeline based on the first volume and the first refrigerant density; obtaining a second refrigerant density, an internal volume of the compressor, and a second volume of a second pipeline, the second pipeline being arranged between the compressor and the first shutoff valve; and determining a second refrigerant charging amount for the compressor and the second pipeline based on the second volume, the internal volume of the compressor, and the second refrigerant density. In this way, by separately charging a required refrigerant amount of the air conditioner outdoor unit into the first pipeline and into the compressor and the second pipeline, an amount of the refrigerant charged into the first pipeline can be reduced, reducing the occurrence of pipe burst caused when the air conditioner outdoor unit is exposed to high temperature during transportation and avoiding the damage to the air conditioner outdoor unit. In some embodiments, the obtaining the first refrigerant density includes: obtaining a maximum ambient temperature