an air conditioning device

A technology of air conditioning and throttling components, which is applied in the direction of air conditioning systems, high-efficiency regulation technology, and climate sustainability. It can solve problems such as poor comfort, slow defrosting speed, and high power consumption of compressors, so as to ensure the reliability of defrosting , Improve the defrosting speed and reduce the power consumption of defrosting

Active Publication Date: 2022-06-03
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the high power consumption of the compressor during defrosting in the prior art, the power consumption of the defrosting process is relatively large, and the defrosting speed is relatively slow in some working conditions, the indoor temperature fluctuates greatly, and the comfort is poor

Method used

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  • an air conditioning device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The present invention provides an embodiment of an air conditioning device, comprising:

[0044]A refrigerant circulation loop formed by connecting the outdoor heat exchanger 100, the indoor heat exchanger 200, the compressor 300, the throttling element 400 and the four-way valve 500;

[0045] Specifically, the refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to air that has been conditioned and heat-exchanged.

[0046] The compressor 300 compresses the refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0047] The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condens...

Embodiment 2

[0071] The present invention provides an embodiment of an air conditioning device, comprising:

[0072] A refrigerant circulation loop formed by connecting the outdoor heat exchanger 100, the indoor heat exchanger 200, the compressor 300, the throttling element 400 and the four-way valve 500;

[0073] The high and low pressure bypass circuit 600 is connected between the air outlet side of the compressor 300 and the return air side of the compressor 300, and a first bypass control element 610 is provided on the high and low pressure bypass circuit 600;

[0074] The first temperature detection element is arranged on the liquid pipe side of the outdoor heat exchanger 100 and is used to detect the temperature of the liquid pipe side. For the convenience of description, in this embodiment, the temperature detected by the first temperature detection element is set to be Te;

[0075] The second temperature detection element is used to detect the outdoor temperature, and the temperatu...

Embodiment 3

[0095] The present invention provides an embodiment of an air conditioning device, comprising:

[0096] A refrigerant circulation loop formed by connecting the outdoor heat exchanger 100, the indoor heat exchanger 200, the compressor 300, the throttling element 400 and the four-way valve 500;

[0097] The high and low pressure bypass circuit 600 is connected between the air outlet side of the compressor 300 and the return air side of the compressor 300, and a first bypass control element 610 is provided on the high and low pressure bypass circuit 600;

[0098] The first temperature detection element is arranged on the liquid pipe side of the outdoor heat exchanger 100, and is used to detect the temperature of the liquid pipe side;

[0099] The second temperature detection element is used to detect the outdoor temperature;

[0100] The outdoor fan 700 is arranged on the side of the outdoor heat exchanger 100;

[0101] The controller is configured to: when the acquired tempera...

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Abstract

The invention discloses an air conditioning device, comprising: a refrigerant circulation circuit; a high and low pressure bypass circuit connected between the air outlet side of the compressor and the air return side of the compressor, and a first bypass control element is arranged above; A temperature detection element, used to detect the temperature of the liquid pipe side; a second temperature detection element, used to detect the outdoor temperature; an outdoor fan; the controller is configured to: when the obtained temperature value detected by the second temperature detection element is greater than the first preset When the continuous heating time is greater than the first preset time and the liquid pipe side temperature is lower than the first liquid pipe preset temperature, the frequency of the compressor is reduced to the first preset frequency, the high and low pressure bypass circuits are turned on, and the throttling element is controlled To the first preset opening degree, the outdoor fan reaches the first preset speed, and the four-way valve is controlled according to the detected defrosting time and liquid pipe side temperature. The invention solves the problems of high power consumption of the compressor during defrosting of the existing air conditioner and large power consumption in the defrosting process.

Description

technical field [0001] The present invention relates to the technical field of air conditioning equipment, in particular to an improvement in the structure of an air conditioning device. Background technique [0002] When the air conditioner is heating in winter, the outdoor unit heat exchanger is used as an evaporator. When the surface temperature of the evaporator is lower than zero and lower than the dew point temperature of the humid air, frost will occur, and the frost will increase the heat of the heat exchanger. When the amount of frost reaches a certain level, the heat exchange effect of the heat exchanger will be seriously affected, and defrosting operation is required. At present, the most commonly used defrosting methods for air conditioning systems are: four-way valve reversing defrosting and hot gas bypass defrosting. [0003] In the reversing defrosting system, when the defrosting conditions are met, the four-way valve is reversed. At this time, the indoor uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B41/20F25B47/02F25B49/02F24F5/00
CPCF25B13/00F25B47/025F24F5/001F25B2313/02741F25B2313/029F25B2400/19F25B2313/0251Y02B30/70
Inventor 张恒邓玉平夏兴祥陈林
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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