Cooling-heating type air conditioning system and cooling air conditioning system

Abstract

The invention discloses a cooling-heating type air conditioning system and a cooling type air conditioning system. The cooling-heating type air conditioning system comprises a compressor, a reversing assembly, an outdoor heat exchanging assembly, an indoor heat exchanger, a controller and a temperature detection device; the reversing assembly comprises a first valve port, a second valve port, a third valve port and a fourth valve port; the outdoor heat exchanging assembly comprises n heat exchanging parts, the first end of each heat exchanging part is connected with the second valve port, and control valves are connected between the n-1 heat exchanging parts and the second valve port, wherein n is greater than or equal to 2; one end of the indoor heat exchanger is connected with the third valve port, the other end of the indoor heat exchanger is connected with one end of a throttling element, and the other end of the throttling element is connected with the second end of each heat exchanging part; the temperature detection device is used for detecting outdoor environment temperature, and the controller is connected with the temperature detection device, the reversing assembly and all the control valves and controls the opening number of the control valves according to the detection result of the temperature detection device. The cooling-heating type air conditioning system is good in low-temperature cooling effect.

Description

technical field [0001] The invention belongs to the field of household appliances, and in particular relates to a heating and cooling air conditioning system and a cooling-only air conditioning system. Background technique [0002] At present, the conventional air-conditioning system has insufficient low-temperature refrigeration requirements. When the outdoor temperature is very low, the heat exchange effect of the heat exchanger is better, so that the pressure difference between the front and rear of the throttle valve is relatively small, which makes the low-temperature refrigeration effect unsatisfactory. [0003] The existing solution is generally to reduce the speed of the outdoor fan to weaken the heat exchange effect of the heat exchanger, thereby improving the low-temperature cooling effect, but the existing technology is difficult to reduce the speed of the outdoor fan to a level of 200r / min, so the effect Not ideal either, there is room for improvement. Contents...

AI Technical Summary

Problems solved by technology

[0002] At present, the conventional air-conditioning system has insufficient low-temperature refrigeration requirements. When the outdoor temperature is very low, the heat exchange effect of the heat exchanger is better, so that the pressure difference between the front and rear of the throttle valve is relatively small, which makes the low-temperature refrigeration effect unsatisfactory.

[0003] The existing solution is generally to reduce the speed of the outdoor fan to weaken the heat exchange effect of the heat exchanger, thereby improving the low-temperature cooling effect, but the existing technology is difficult to reduce the speed of the outdoor fan to a level of 200r / min, so the effect Not ideal, there is room for improvement

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