An air conditioning system and its control method for switching between cooling and heating modes
A technology of an air conditioning system and a control method, which is applied in the directions of control input involving air characteristics, space heating and ventilation control input, heating method, etc., can solve problems such as poor user comfort, achieve strong functions and adaptability, and solve control problems. A single method, the effect of reducing noise
Active Publication Date: 2019-06-25
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the air-conditioning system in the prior art has noise when the operating mode is switched, which leads to poor user comfort, thereby providing a control method for the air-conditioning system and its cooling and heating modes
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[0031] Such as figure 1 As shown, the present invention provides an air conditioning system, which includes a compressor 1, an outdoor heat exchanger 2, and an indoor heat exchanger 3, and between the indoor heat exchanger 3 and the exhaust port and suction port of the compressor 1 The position where the air port and the pipelines connected to the outdoor heat exchanger 2 are jointly included is provided with a cooling and heating converter 4 that can control the pipelines separately, and inside the cooling and heating converter 4 is provided An expansion valve assembly that transitions the system between heating and cooling modes.
[0032] Through the air-conditioning system of the present invention, the cooling and heat converters are arranged at the intersections of the pipelines where the indoor heat exchanger is connected to the exhaust port, the suction port of the compressor, and the outdoor heat exchanger respectively, and The expansion valve assembly is installed ins...
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The present invention provides an air conditioning system and its control method for switching between cooling and heating modes, which includes a compressor (1), an outdoor heat exchanger (2), and an indoor heat exchanger (3), and the indoor heat exchanger ( 3) Each pipeline connected to the exhaust port of the compressor (1), the suction port, and the outdoor heat exchanger (2) is jointly included, and the position that can control the pipelines separately is provided. A cooling and heating converter (4), and an expansion valve assembly for switching the system between cooling and heating modes is arranged inside the cooling and heating converter (4). Through the present invention, the expansion valve assembly can be used as the control valve of the cold-heat converter branch, and the function of mode conversion can be completed by controlling the opening degree of the expansion valve assembly, thereby effectively reducing the noise during mode switching and improving user comfort sex.
Description
technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to an air conditioning system and a control method for switching between cooling and heating modes thereof. Background technique [0002] The current heat recovery mode converters in the prior art all use solenoid valves as the main control means of the mode converter. This method is simple to control, but there is a big problem that the control means is single, and the high-voltage and low-voltage conduction instantaneous The noise problem is not easy to solve, and the user comfort is poor. [0003] Since the air-conditioning system in the prior art has technical problems such as single control means and poor user comfort due to noise generated during mode switching, the present invention researches and designs an air-conditioning system and its cooling and heating mode switching control method. Contents of the invention [0004] Therefore, the technical pr...
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IPC IPC(8): F24F11/89F25B41/00F25B41/34F25B41/40
CPCF24F11/30F24F11/62F24F11/83F24F2110/00F24F11/84F24F11/65F25B41/40
Inventor 代文杰张仕强张一鹤张恒李煜东贾翔边继飞
Owner GREE ELECTRIC APPLIANCES INC