Heat pump type air conditioning device

An air conditioning and heat pump technology, applied in the field of heat pump air conditioning devices, can solve problems such as inability to defrost in time

Active Publication Date: 2013-10-23
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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  • Claims
  • Application Information

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  • Heat pump type air conditioning device
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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] Such as figure 1As shown, the first embodiment of the heat-pump air-conditioning device provided by the present invention, the heat-pump air-conditioning device includes an air-conditioning main circuit, an air supply circuit and a defrosting device, and the air-conditioning main circuit includes sequentially connected through refrigeration pipelines Compressor 1, four-way reversing valve 2, outdoor heat exchanger 3, throttling device 8, flash evaporator 7, expansion device 9 and indoor heat exchanger 12, the first interface of four-way reversing valve 2 and the compressor The outlet port of 1 is connected, the second port is connected with the outdoor heat exchanger 3, the third port i...

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Abstract

The invention provides a heat pump type air conditioning device which comprises an air conditioning main loop, an air supply loop and a defrosting device. The air conditioning main loop comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, a throttling device, a flash evaporator, an expansion device and an indoor heat exchanger all of which are sequentially connected through a refrigeration pipeline, wherein a first connector of the four-way reversing valve is communicated with the outlet end of the compressor, a second connector of the four-way reversing valve is communicated with the outdoor heat exchanger, a third connector of the four-way reversing valve is communicated with the indoor heat exchanger, and a fourth connector of the four-way reversing valve is communicated with the inlet end of the compressor. One end of the air supply loop is connected with the flash evaporator, the other end of the air supply loop is connected with the compressor, and the air supply loop comprises air supply valves which are connected through a pipeline. The defrosting device is used for carrying out defrosting on the outdoor heat exchanger, and is a refrigerant heating device which is connected to the air conditioning main loop in series. According to the heat pump type air conditioning device, defrosting can be carried out under the condition that the compressor does not need to be stopped, defrosting is timely, and the structure is simple.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a heat pump type air conditioning device. Background technique [0002] The heat pump air-conditioning device in the prior art generally adopts two-stage compression technology, and the two-stage compression technology performs the refrigeration process through the flash evaporator and the throttling device. Those skilled in the art know that when heating, because of the existence of the flash evaporator, the refrigerant When flowing through the flash evaporator, it must be subcooled again, that is, the refrigerant flowing into the outdoor heat exchanger must be at a lower temperature than the single-stage compression technology, so its frosting will be more serious and frequent. The traditional defrosting method is to switch the four-way reversing valve to the refrigeration cycle during the heating operation of the air conditioner, so that the high-temperature and high-pressure r...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B47/00F25B41/04F24F5/00F24F11/02F25B41/20
Inventor 张辉陈绍林熊军段亮王现林孟琪林
Owner GREE ELECTRIC APPLIANCES INC
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