A control method for an air conditioning system

A control method and air-conditioning system technology, applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve problems such as occupied time, room temperature drop, and aggravated room discomfort, so as to save time Effect

Active Publication Date: 2018-04-13
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the indoor heat exchanger is used as an evaporator at this time, the indoor heat exchanger absorbs the heat of the room during the defrosting process of the traditional heat pump air conditioner, causing the room temperature to drop, which seriously affects the comfort of the room.
In addition, the process of switching the four-way reversing valve during defrosting of the traditional heat pump air conditioner also takes time, which aggravates the discomfort of the room

Method used

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  • A control method for an air conditioning system
  • A control method for an air conditioning system
  • A control method for an air conditioning system

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Embodiment Construction

[0021] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0022] Such as figure 1 As shown, the air conditioning system provided by the present invention includes a compressor 1, a four-way reversing valve 2, an indoor heat exchanger 3, a first throttling element 4, a first outdoor heat exchanger 5, a second throttling element 6, a first throttling element Two outdoor heat exchangers 7. The first throttling element 4 and the second throttling element 6 are preferably electronic expansion valves or electromagnetic expansion valves, and the four-way reversing valve 2 includes a first port a, a second port b, a third port c and a third port Four ports d, the exhaust port of the compressor 1 communicates with the first port a o...

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Abstract

The invention relates to a control method of an air-conditioning control system, which includes a compressor, a four-way reversing valve, an indoor heat exchanger, a first throttling element, a first outdoor heat exchanger, a second throttling element, and a second outdoor heat exchanger. Heater, the control method of the air-conditioning system provided by the present invention, an outdoor heat exchanger and a throttling element are added to the air-conditioning system, and by controlling the working status of the two throttling elements and the indoor fan, different degrees of frosting conditions can be achieved. The defrosting operation does not involve the switching of the conduction state of the four-way reversing valve, which saves time and greatly reduces the impact of the defrosting process on heating, and the addition of an outdoor heat exchanger can be replaced by the existing two-way The outdoor unit with a row of heat exchangers can simply be refitted by connecting two rows of heat exchangers in series, so it will not increase too much cost, and will not make the system too complicated.

Description

technical field [0001] The invention relates to air-conditioning technology, in particular to a control method for an air-conditioning system. Background technique [0002] The traditional defrosting method of heat pump air conditioners is to switch the four-way reversing valve to the refrigeration cycle mode during the heating operation of the air conditioner. At this time, the outdoor heat exchanger acts as a condenser, and the indoor heat exchanger acts as an evaporator, allowing the compressor to discharge The high-temperature and high-pressure refrigerant is discharged into the outdoor heat exchanger through the four-way reversing valve for defrosting. Since the indoor heat exchanger is used as an evaporator at this time, the indoor heat exchanger absorbs the heat of the room during the defrosting process of the traditional heat pump air conditioner, causing the room temperature to drop, which seriously affects the comfort of the room. In addition, the process of switc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/16F24F11/42F24F11/65F25B41/04F25B41/06F25B41/20F25B41/34
CPCF24F1/16F24F11/30F24F11/62F24F11/65F25B41/20F25B41/31
Inventor 彭光前罗永前廖敏李大伟
Owner GREE ELECTRIC APPLIANCES INC
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