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Air conditioner and control method and control device thereof and computer readable storage medium

A control method and air conditioner technology, applied in the fields of air conditioners and their control methods, control devices, and computer-readable storage media, capable of solving the problems affecting the cooling and heating speed of air conditioners, the refrigerant cannot be completely liquefied, and the refrigerant cannot be replenished in time , to achieve the effect of reducing system stabilization time, improving intelligence level, and simple structure

Inactive Publication Date: 2019-12-06
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

[0003] When the compressor performs high-frequency startup or rapid frequency increase, the refrigerant on the evaporator side is quickly sucked clean in a short period of time, while the refrigerant on the condenser side cannot be completely liquefied in a short period of time, and it is difficult to form at the throttling mechanism. Effective liquid seal, which greatly reduces the refrigerant flow through the throttling mechanism, resulting in the refrigerant not being replenished to the evaporator side in time, which affects the cooling and heating speed of the air conditioner

Method used

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  • Air conditioner and control method and control device thereof and computer readable storage medium
  • Air conditioner and control method and control device thereof and computer readable storage medium
  • Air conditioner and control method and control device thereof and computer readable storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0059] like figure 1 As shown, the first switch device is arranged on the second pipeline 10 to control the on-off of the second pipeline 10, including the conduction direction of the second pipeline 10 when controlling the second pipeline 10 (the second pipeline 10 conducts in the direction from the third port to the exhaust port 11 or conducts in the direction from the exhaust port 11 to the third port).

[0060] During the refrigeration cycle, the refrigerant discharged from the exhaust port 11 of the compressor 1 flows to the first port of the reversing assembly 2 through the first pipeline 9, and then flows to the outdoor heat exchanger 3, the throttling mechanism 5, The indoor heat exchanger 7 flows back to the suction port 12 of the compressor 1 through the fourth port, the third port, and the second pipeline 10 .

[0061] During the heating cycle, the refrigerant discharged from the exhaust port 11 of the compressor 1 flows to the first port of the reversing assembly ...

Embodiment 2

[0077] like figure 2 As shown, the difference from the first embodiment is that the first switch device is arranged on the first pipeline 9 for controlling the on-off of the first pipeline 9 .

[0078] When shutting down in refrigeration mode, in response to the shutdown command, the throttle mechanism 5 is controlled to close, the compressor 1 is controlled to stop running, and the first pipeline 9 is unidirectionally conducted along the direction from the exhaust port 11 to the first port, which can effectively prevent The refrigerant in the outdoor heat exchanger migrates to the indoor heat exchanger through the third pipeline or migrates back to the compressor through the first pipeline. Therefore, the first switch device is set on the first pipeline 9, which can make the outdoor heat exchanger The refrigerant in the air conditioner is closer to the refrigerant distribution when the air conditioner is running stably.

[0079] When shutting down in the heating mode, in re...

Embodiment 3

[0081] like image 3 As shown, the difference from the first embodiment is that the throttling mechanism 5 includes a stop throttling mechanism 5 that can be cut off.

[0082] The cut-off throttling mechanism 5 has a cut-off function, so the cut-off throttling mechanism 5 itself can control the on-off of the third pipeline 20. At this time, it is not necessary to set a switch device for controlling the third pipeline 20, which further simplifies the operation of the air conditioner. The structure of the air conditioner reduces the cost of the air conditioner.

[0083] Further, the throttle mechanism 5 includes an electronic expansion valve.

[0084] The electronic expansion valve can effectively improve the intelligence level of the air conditioner and improve the control accuracy of the air conditioner.

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Abstract

The invention provides an air conditioner and a control method and a control device thereof and a computer readable storage medium. A first switching device is arranged on at least one of a first pipeline and a second pipeline, and is used for controlling connection and disconnection of the pipeline; and a controller is electrically connected with a throttling mechanism, and is used for closing the throttling mechanism in response to a closing instruction to cut off a third pipeline to stop emigration or immigration of refrigerants in an indoor heat exchanger or an outdoor heat exchanger. Theair conditioner can maintain the refrigerant distribution in a distribution state during stable refrigeration or heating operation in a stop state, can quickly build a balanced high-low system pressure difference in next startup, reduces the system stabilizing time after startup, and realizes quick refrigeration and heating.

Description

technical field [0001] The present invention relates to the field of refrigeration equipment, and more specifically, to an air conditioner, a control method thereof, a control device, and a computer-readable storage medium. Background technique [0002] When the air conditioner reaches a stable operating state, the amount of refrigerant on the high-pressure side is relatively large, while the amount of refrigerant on the low-pressure side is relatively small. However, before the air conditioner is started, the pressure in all parts of the system is equal, so it takes a long time to re-establish the high and low pressure differences in the system, resulting in a slow cooling and heating speed of the air conditioner after the start-up. At present, various manufacturers mainly use compressor high-frequency start-up or rapid frequency increase to increase the cooling and heating speed of air conditioners. [0003] When the compressor performs high-frequency startup or rapid fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/06F25B49/02F24F11/86F24F11/84F24F11/64F25B41/20F25B41/24F25B41/31F25B41/34F25B41/37
CPCF25B13/00F25B49/022F24F11/86F24F11/84F24F11/64F25B41/31Y02B30/70
Inventor 朱兴丹徐振坤杜顺开白崇俨
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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