Air conditioner control system, air conditioner and control method for air conditioner control system

Abstract

An air conditioner control system, an air conditioner and a control method for an air conditioner control system. The air conditioner control system comprises: a compressor (10), a domestic water heat exchanger (20), a third control valve (SV3), a fourth control valve (SV4), a multi-way valve (30), a plate heat exchanger (40) and a subcooler (50); an exhaust port (11) of the compressor (10) is in communication with the domestic water heat exchanger (20); the domestic water heat exchanger (20) is in communication with an input end (D) of the multi-way valve (30) by means of the third control valve (SV3); a first output end (S) of the multi-way valve (30) is in communication with an air inlet (12) of the compressor (10); a second output end (E) of the multi-way valve (30) is in communication with the subcooler (50) by means of the plate heat exchanger (40); a third output end (C) of the multi-way valve (30) is in communication with the first output end (S) of the multi-way valve (30) and the air inlet (12) of the compressor (10) by means of the fourth control valve (SV4); and a third output end (C) of the multi-way valve (30) is in communication with the subcooler (50).

Description

Air conditioner control system, air conditioner and control method of air conditioner control system

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority from Chinese Patent Application No. 202411305736.X filed on September 18, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of air conditioners, and in particular to an air conditioner control system, an air conditioner and a control method of the air conditioner control system. BACKGROUND

[0004] With the continuous development of air conditioner technology, air conditioners have occupied an increasingly important position in people's lives. In the actual use process, the air conditioner control system of the current air conditioner can usually only switch between the cooling mode, the heating mode and the dehumidification mode. It can be seen that the current air conditioner control system has poor diversity in mode switching.

[0005] SUMMARY

[0006] Embodiments of the present disclosure aim to provide an air conditioner control system, an air conditioner and a control method of the air conditioner control system, and solve the problem of poor diversity in mode switching of the current air conditioner control system.

[0007] In a first aspect, an air conditioner control system is provided, comprising: a compressor, a domestic water heat exchanger, a third control valve, a fourth control valve, a multi-way valve, a plate heat exchanger and a subcooler.

[0008] The exhaust port of the compressor is in communication with the domestic water heat exchanger, the domestic water heat exchanger is in communication with the input end of the multi-way valve through the third control valve, the first output end of the multi-way valve is in communication with the gas inlet of the compressor, the second output end of the multi-way valve is in communication with the subcooler through the plate heat exchanger, the third output end of the multi-way valve is in communication with the first output end of the multi-way valve and the gas inlet of the compressor through the fourth control valve, and the third output end of the multi-way valve is in communication with the subcooler.

[0009] As an optional implementation, the air conditioner control system further comprises a one-way valve assembly, the one-way valve assembly comprises a first one-way valve and a second one-way valve connected in parallel, the third output end of the multi-way valve is in communication with the subcooler through the first one-way valve, the plate heat exchanger is in communication with the subcooler through the second one-way valve, and the subcooler is in communication with the input end of the first one-way valve and the input end of the second one-way valve, respectively.

[0010] As an optional implementation, the air conditioner control system further comprises a driver liquid cooling module, the one-way valve assembly further comprises a third one-way valve and a fourth one-way valve, the first one-way valve and the second one-way valve are both communicated with the overcooler through the driver liquid cooling module, the overcooler is communicated with the input end of the first one-way valve through the third one-way valve, and the overcooler is communicated with the input end of the second one-way valve through the fourth one-way valve.

[0011] As an optional implementation, the air conditioner control system further comprises a liquid storage tank, and the plate heat exchanger is communicated with the input end of the second one-way valve through the liquid storage tank.

[0012] As an optional implementation, the air conditioner control system further comprises an air side heat exchanger, and the third output end of the multi-way valve is communicated with the input end of the first one-way valve through the air side heat exchanger.

[0013] As an optional implementation, the air conditioner control system further comprises a first gas-liquid separator and a first control valve, the one-way valve assembly further comprises a fifth one-way valve, the domestic water heat exchanger is communicated with the third control valve through the first gas-liquid separator, the first gas-liquid separator is communicated with the fifth one-way valve through the first control valve, and the fifth one-way valve is communicated with the overcooler.

[0014] As an optional implementation, the air conditioner control system further comprises a main road electronic expansion valve and an auxiliary road air supplement electronic expansion valve, the driver liquid cooling module is communicated with the input end of the third one-way valve in sequence through a first pipeline of the overcooler and the main road electronic expansion valve, the driver liquid cooling module is communicated with the input end of the fourth one-way valve in sequence through the first pipeline and the main road electronic expansion valve, the first pipeline is further communicated with a second pipeline of the overcooler through the auxiliary road air supplement electronic expansion valve, and the second pipeline is communicated with a gas supplement port of the compressor.

[0015] As an optional implementation, the air conditioner control system further comprises a second control valve and a second gas-liquid separator, the first output end of the multi-way valve is communicated with a gas inlet port of the compressor through the second gas-liquid separator, and the second pipeline is communicated with the second gas-liquid separator through the second control valve.

[0016] As an optional implementation, the air conditioner control system further comprises a fan, and the fan is arranged adjacent to the air side heat exchanger.

[0017] In a second aspect, the embodiments of the present disclosure further provide an air conditioner comprising the air conditioner control system of the first aspect.

[0018] In a third aspect, the disclosure also provides a control method of an air conditioner control system, applied to the air conditioner control system of the first aspect, and the method comprises:

[0019] The mode of the air conditioner control system is controlled by controlling the opening and closing states of the third control valve, the fourth control valve and the multi-way valve included in the air conditioner control system.

[0020] As an optional implementation, the air conditioner control system further comprises a first control valve and a second control valve, and the mode of the air conditioner control system is controlled by controlling the opening and closing states of the third control valve, the fourth control valve and the multi-way valve included in the air conditioner control system, which comprises:

[0021] The air conditioner control system is controlled to be in a cooling mode by controlling the third control valve to be in an open state and the fourth control valve, the multi-way valve, the first control valve and the second control valve to be in closed states;

[0022] The air conditioner control system is controlled to be in a heating mode by controlling the third control valve and the multi-way valve to be in open states and the fourth control valve, the first control valve and the second control valve to be in closed states;

[0023] The air conditioner control system is controlled to be in a life hot water making and cooling mode, a life hot water making and heating mode or a life hot water making mode by controlling the first control valve to be in an open state and the second control valve to be in a closed state.

[0024] As an optional implementation, the air conditioner control system is controlled to be in a life hot water making and cooling mode, a life hot water making and heating mode or a life hot water making mode by controlling the first control valve to be in an open state and the second control valve to be in a closed state, which comprises:

[0025] The air conditioner control system is controlled to be in a life hot water making mode by controlling the first control valve and the multi-way valve to be in open states and the third control valve, the fourth control valve and the second control valve to be in closed states;

[0026] The air conditioner control system is controlled to be in a life hot water making and cooling mode by controlling the first control valve to be in an open state and the third control valve, the fourth control valve, the second control valve and the multi-way valve to be in closed states, the life hot water making being a life hot water making mode by recycling all waste heat;

[0027] By controlling the first control valve and the third control valve to be in the open state, the fourth control valve, the second control valve and the multi-way valve to be in the closed state, the air conditioning control system is controlled to be in the mode of producing domestic hot water and refrigeration, and the demand corresponding to the mode of producing domestic hot water is greater than the demand corresponding to the mode of refrigeration.

[0028] By controlling the first control valve and the third control valve to be in the open state, the fourth control valve, the second control valve and the multi-way valve to be in the closed state, the air conditioning control system is controlled to be in the mode of producing domestic hot water and refrigeration, and the demand corresponding to the mode of producing domestic hot water is greater than the demand corresponding to the mode of refrigeration.

[0029] By controlling the first control valve and the third control valve to be in the open state, the fourth control valve, the second control valve and the multi-way valve to be in the closed state, the air conditioning control system is controlled to be in the mode of producing domestic hot water and refrigeration, and the demand corresponding to the mode of producing domestic hot water is greater than the demand corresponding to the mode of refrigeration.

[0030] One of the above technical solutions has the following advantages or beneficial effects:

[0031] In the embodiment of the present disclosure, the air conditioning control system comprises a compressor, a domestic water heat exchanger, a third control valve, a fourth control valve, a multi-way valve, a plate heat exchanger and a subcooler. By controlling the opening and closing states of the third control valve, the fourth control valve and the multi-way valve, the switching of the mode of the air conditioning control system can be controlled, that is, the switching of the mode of the air conditioning control system between multiple different modes can be realized, thereby enhancing the diversity of mode switching of the air conditioning control system of the current air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0032] FIG. 1 is a structural schematic diagram of an air conditioning control system according to an embodiment of the present disclosure;

[0033] FIG. 2 is a schematic diagram of an application scenario of an air conditioning control system according to an embodiment of the present disclosure;

[0034] FIG. 3 is a schematic diagram of an application scenario of an air conditioning control system according to an embodiment of the present disclosure;

[0035] FIG. 4 is a schematic diagram of an application scenario of an air conditioning control system according to an embodiment of the present disclosure;

[0036] FIG. 5 is a schematic diagram of an application scenario of an air conditioning control system according to an embodiment of the present disclosure;

[0037] FIG. 6 is a schematic diagram of an application scenario of an air conditioning control system according to an embodiment of the present disclosure;

[0038] FIG. 7 is a schematic diagram of an application scenario of an air conditioning control system according to an embodiment of the present disclosure;

[0039] Fig. 8 is a schematic diagram of an application scenario of the air conditioner control system according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present disclosure will be clearly and completely described with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

[0041] Referring to Fig. 1, Fig. 1 is a structural schematic diagram of an air conditioner control system according to an embodiment of the present disclosure. As shown in Fig. 1, the present disclosure provides an air conditioner control system, which comprises:

[0042] a compressor 10, a domestic water heat exchanger 20, a third control valve SV3, a fourth control valve SV4, a multi-way valve 30, a plate heat exchanger 40, and a subcooler 50.

[0043] The exhaust port 11 of the compressor 10 is in communication with the domestic water heat exchanger 20. The domestic water heat exchanger 20 is in communication with the input end D of the multi-way valve 30 through the third control valve SV3. The first output end S of the multi-way valve 30 is in communication with the gas inlet 12 of the compressor 10. The second output end E of the multi-way valve 30 is in communication with the subcooler 50 through the plate heat exchanger 40. The third output end C of the multi-way valve 30 is in communication with the first output end S of the multi-way valve 30 and the gas inlet 12 of the compressor 10 through the fourth control valve SV4, and the third output end C of the multi-way valve 30 is in communication with the subcooler 50.

[0044] The working principle of the present disclosure can be seen from the following description:

[0045] In the present disclosure, the air conditioner control system comprises: a compressor 10, a domestic water heat exchanger 20, a third control valve SV3, a fourth control valve SV4, a multi-way valve 30, a plate heat exchanger 40, and a subcooler 50. By controlling the on-off state of the third control valve SV3, the fourth control valve SV4, and the multi-way valve 30, the switching of the mode of the air conditioner control system can be controlled, i.e., the switching of the mode of the air conditioner control system between different modes can be realized, thereby enhancing the diversity of mode switching of the air conditioner control system of the current air conditioner.

[0046] In the air conditioning control system, since the sanitary water heat exchanger 20, the plate heat exchanger 40 and the subcooler 50 are included, the modes switchable by the air conditioning control system of the air conditioner can include at least one of a heating mode, a cooling mode, a sanitary hot water production and cooling mode, a sanitary hot water production and heating mode, and a sanitary hot water production only mode.

[0047] It should be noted that the heating mode can be understood as a mode for increasing the temperature of the environment in which the air conditioning control system is located, the cooling mode can be understood as a mode for decreasing the temperature of the environment in which the air conditioning control system is located, the sanitary hot water production and cooling mode can be understood as a mode for decreasing the temperature of the environment in which the air conditioning control system is located while producing sanitary hot water, the sanitary hot water production and heating mode can be understood as a mode for increasing the temperature of the environment in which the air conditioning control system is located while producing sanitary hot water, and the sanitary hot water production only mode can be understood as a mode for producing sanitary hot water only.

[0048] It should be noted that the air conditioning control system produces sanitary hot water through the sanitary water heat exchanger 20, and the heat recovered by the air conditioning control system (mainly in the sanitary hot water production and cooling mode) can come from the plate heat exchanger 40 and the compressor 10, so that the recycling rate of heat can be improved and the waste rate of heat can be reduced.

[0049] The specific types of the third control valve SV3 and the fourth control valve SV4 are not limited here, and the third control valve SV3 and the fourth control valve SV4 can be electric ball valves, electric butterfly valves, electric gate valves, or flow regulating valves, and the flow regulating valves can be solenoid valves. The third control valve SV3 and the fourth control valve SV4 can be of the same type or different types.

[0050] The compressor 10 can be referred to as Compressor, the plate heat exchanger 40 can be referred to as Plate hex, the sanitary water heat exchanger 20 can be referred to as Sanitary water HEX, the subcooler 50 can be referred to as Subcooler, and the specific type of the multi-way valve 30 is not limited here. The multi-way valve 30 can be a four-way valve, which can be referred to as 4way valve. When the third control valve SV3 and the fourth control valve SV4 are solenoid valves, the third control valve SV3 and the fourth control valve SV4 can both be referred to as Solenoid valve.

[0051] As an optional implementation, referring to FIG. 1, the air conditioner control system further comprises a one-way valve assembly 60, the one-way valve assembly 60 comprises a first one-way valve 61 and a second one-way valve 62 connected in parallel, the third output end C of the multi-way valve 30 is communicated with the overcooler 50 through the first one-way valve 61, the plate heat exchanger 40 is communicated with the overcooler 50 through the second one-way valve 62, and the overcooler 50 is further communicated with the input end of the first one-way valve 61 and the input end of the second one-way valve 62 respectively.

[0052] Wherein, the one-way valve assembly 60 can be referred to as 1way valve assembly, and the specific structure of the one-way valve assembly 60 is not limited here, optionally, the one-way valve assembly 60 can comprise a first one-way valve 61 and a second one-way valve 62 connected in parallel, in addition, optionally, the one-way valve assembly 60 can further comprise a plurality of one-way valves, and the plurality of one-way valves can comprise a first part of one-way valves, a second part of one-way valves and a third part of one-way valves, the first part of one-way valves can be connected in series with the first one-way valve 61, the second part of one-way valves can be connected in series with the second one-way valve 62, and the third part of one-way valves can be connected in parallel with the first pipeline and the second pipeline respectively, the first pipeline is a pipeline where the first one-way valve 61 and the first part of one-way valves are located, and the second pipeline is a pipeline where the second one-way valve 62 and the second part of one-way valves are located.

[0053] Wherein, the flow direction of the refrigerant in the first one-way valve 61 and the second one-way valve 62 can be the same, when the first part of one-way valves, the second part of one-way valves and the third part of one-way valves are included, the flow direction of the refrigerant in the first one-way valve 61, the second one-way valve 62, the first part of one-way valves, the second part of one-way valves and the third part of one-way valves can all be the same.

[0054] In the embodiments of the present disclosure, since the air conditioner control system further comprises the one-way valve assembly 60, the flow direction of the refrigerant in the air conditioner control system can be controlled through the first one-way valve 61 and the second one-way valve 62, so that the refrigerant passing through the multi-way valve 30 and the plate heat exchanger 40 all flows along the flow direction of the first one-way valve 61 and the second one-way valve 62, thereby enhancing the control effect on the flow direction of the refrigerant.

[0055] It should be noted that the flow direction of the first one-way valve 61 and the second one-way valve 62 can refer to the flow direction of the refrigerant in the first one-way valve 61 and the second one-way valve 62.

[0056] As an optional implementation, referring to FIG. 1, the air conditioner control system further comprises a driver liquid cooling module 70, the one-way valve assembly 60 further comprises a third one-way valve 63 and a fourth one-way valve 64, the first one-way valve 61 and the second one-way valve 62 are both communicated with the subcooler 50 through the driver liquid cooling module 70, the subcooler 50 is communicated with the input end of the first one-way valve 61 through the third one-way valve 63, and the subcooler 50 is communicated with the input end of the second one-way valve 62 through the fourth one-way valve 64.

[0057] Among them, the driver liquid cooling module 70 can be referred to as Driver cooler, and the third one-way valve 63 can be understood as the first part of the one-way valve in the above implementation, and the fourth one-way valve 64 can be understood as the second part of the one-way valve in the above implementation.

[0058] In the embodiment of the present disclosure, the flow direction of the refrigerant in the first one-way valve 61, the second one-way valve 62, the third one-way valve 63 and the fourth one-way valve 64 is the same, so that the refrigerant can only flow from the third one-way valve 63 to the first one-way valve 61, and can only flow from the fourth one-way valve 64 to the second one-way valve 62, thereby further enhancing the control effect on the flow direction of the refrigerant.

[0059] It should be noted that the air conditioner control system can be located in the electric control box, and the temperature of the refrigerant currently flowing in the air conditioner control system is low, which is easy to cause condensation in the electric control box. In the embodiment, the flow direction control of the refrigerant in the air conditioner control system by the one-way valve assembly 60 makes the refrigerant entering the driver liquid cooling module 70 be high-pressure high-temperature liquid refrigerant in the following various modes, thereby solving the problem of condensation in the electric control box where the air conditioner control system is located.

[0060] It should be noted that the temperature of the high-pressure high-temperature liquid refrigerant is usually about 45℃, and the refrigerant in the current air conditioner control system is also low-pressure refrigerant, which is low in temperature and easy to cause condensation in the electric control box.

[0061] As an optional implementation, referring to FIG. 1, the air conditioner control system further comprises a liquid storage tank 80, and the plate heat exchanger 40 is communicated with the input end of the second one-way valve 62 through the liquid storage tank 80.

[0062] Among them, the liquid storage tank 80 can be referred to as receiver.

[0063] In the embodiment of the present disclosure, since the air conditioner control system further comprises a liquid storage tank 80, the receiving effect of the refrigerant can be enhanced.

[0064] As an optional implementation, referring to FIG. 1, the air conditioner control system further comprises an air side heat exchanger 90, and a third output end of the multi-way valve 30 is communicated with an input end of the first one-way valve 61 through the air side heat exchanger 90.

[0065] The air side heat exchanger 90 can be referred to as an Air side hex.

[0066] In the embodiments of the present disclosure, since the air conditioner control system further comprises the air side heat exchanger 90, the heat exchange effect of the air conditioner control system can be further enhanced.

[0067] As an optional implementation, referring to FIG. 1, the air conditioner control system further comprises a first gas-liquid separator 100 and a first control valve SV1, the one-way valve assembly 60 further comprises a fifth one-way valve 65, the domestic water heat exchanger 20 is communicated with the third control valve SV3 through the first gas-liquid separator 100, the first gas-liquid separator 100 is communicated with the fifth one-way valve 65 through the first control valve SV1, and the fifth one-way valve 65 is communicated with the supercooler 50.

[0068] The first gas-liquid separator 100 can be referred to as an Hp accumulator.

[0069] The specific type of the first control valve SV1 is not limited herein, and the type-related description of the first control valve SV1 can refer to the related description of the third control valve SV3 and the fourth control valve SV4, that is, the type of the first control valve SV1 can be the same as that of at least one of the third control valve SV3 and the fourth control valve SV4, or the type of the first control valve SV1 can be different from that of at least one of the third control valve SV3 and the fourth control valve SV4, and the fifth one-way valve 65 can be understood as the third one-way valve in the above-mentioned embodiments, that is, the flow direction of the refrigerant in the fifth one-way valve 65 can be the same as that in the first one-way valve 61, the second one-way valve 62, the third one-way valve 63 and the fourth one-way valve 64.

[0070] In the embodiments of the present disclosure, since the one-way valve assembly 60 further comprises the fifth one-way valve 65, the control effect of the flow direction of the refrigerant can be further enhanced, and since the air conditioner control system further comprises the first gas-liquid separator 100 and the first control valve SV1, the mode of the air conditioner control system can be switched between different modes by controlling the on-off state of the first control valve SV1, so that the diversity of the mode switching of the air conditioner control system of the current air conditioner is further enhanced.

[0071] As an optional implementation, referring to FIG. 1, the air conditioner control system further comprises a main path electronic expansion valve EVO and a supplementary path air supplementing electronic expansion valve EVB, the driver liquid cooling module 70 is in communication with the input end of the third one-way valve 63 in sequence through the first pipeline of the subcooler 50 and the main path electronic expansion valve EVO, and the driver liquid cooling module 70 is in communication with the input end of the fourth one-way valve 64 in sequence through the first pipeline 51 and the main path electronic expansion valve EVO, the first pipeline is further in communication with the second pipeline 52 of the subcooler 50 through the supplementary path air supplementing electronic expansion valve EVB, and the second pipeline 52 is in communication with the air supplementing port 13 of the compressor 10.

[0072] In the embodiment of the present disclosure, by arranging the main path electronic expansion valve EVO and the supplementary path air supplementing electronic expansion valve EVB, a part of the refrigerant passing through the subcooler 50 can be branched through the supplementary path air supplementing electronic expansion valve EVB to flow back to the subcooler 50 to cool the refrigerant, thereby improving the subcooling degree of the cooled high-pressure liquid refrigerant.

[0073] It should be noted that the refrigerant completely gasified in the subcooler 50 can be injected into the intermediate pressure cavity of the compressor 10 through the second pipeline 52 and the air supplementing port 13 of the compressor 10 to complete air supplementing and enthalpy increasing of the compressor 10, thereby improving the circulation amount of the refrigerant in the air conditioner control system and increasing the refrigeration and heating capacity of the air conditioner control system.

[0074] It should be noted that the air supplementing port of the compressor 10 can also be referred to as the air supplementing port 13, and the refrigerant can also be referred to as the refrigerant.

[0075] As an optional implementation, referring to FIG. 1, the air conditioner control system further comprises a second control valve SV2 and a second gas-liquid separator 110, the first output end S of the multi-way valve 30 is in communication with the air inlet 12 of the compressor 10 through the second gas-liquid separator 110, and the second pipeline 52 is in communication with the second gas-liquid separator 110 through the second control valve SV2.

[0076] Among them, the second gas-liquid separator 110 can be referred to as an Lp accumulator, and the pressure in the second gas-liquid separator 110 or the pressure of the refrigerant flowing through the second gas-liquid separator 110 can be lower, and the pressure in the above-mentioned first gas-liquid separator 100 or the pressure of the refrigerant flowing through the first gas-liquid separator 100 can be higher, that is, the first gas-liquid separator 100 can be referred to as a high-pressure gas-liquid separator, and the second gas-liquid separator 110 can be referred to as a low-pressure gas-liquid separator.

[0077] The second control valve SV2 can refer to the related description of the third control valve SV3, the fourth control valve SV4 and the first control valve SV1 in the above embodiments, and details are not described herein again.

[0078] In the embodiment of the present disclosure, when the compressor 10 needs to be supplemented with air and enthalpy, the second control valve SV2 can be closed, and in special conditions, the second control valve SV2 can be controlled to be opened, so that the function of supplementing the compressor 10 with air and enthalpy can be closed, thereby protecting the compressor 10 and prolonging the service life of the compressor 10.

[0079] As an optional embodiment, referring to FIG. 1, the air conditioner control system further comprises a fan 91, and the fan 91 is arranged adjacent to the air-side heat exchanger 90.

[0080] In the embodiment of the present disclosure, since the air conditioner control system further comprises the fan 91, and the fan 91 is arranged adjacent to the air-side heat exchanger 90, the fan 91 can provide circulating air on the air-side heat exchanger 90 to ensure that the heat exchange effect of the air-side heat exchanger 90 is good, that is, the heat exchange effect of the air-side heat exchanger 90 can be further enhanced by the fan 91.

[0081] It should be noted that the fan 91 can be arranged towards the air-side heat exchanger 90, or the fan 91 can be arranged away from the air-side heat exchanger 90.

[0082] As an optional embodiment, the embodiment of the present disclosure further provides an air conditioner comprising the air conditioner control system described in the above embodiments. Since the air conditioner provided by the embodiment of the present disclosure comprises the air conditioner control system of the above embodiments, the air conditioner has the same beneficial technical effects as the above embodiments, and the structure of the air conditioner control system can refer to the corresponding description in the above embodiments, and details are not described herein again.

[0083] It should be noted that optionally, the air conditioner can comprise a heat exchanger, and the heat exchanger can be in communication with the above air conditioner control system, thereby further enhancing the heat exchange effect of the air conditioner, and the heat exchanger can be referred to as an air-conditioner heat exchanger.

[0084] As an optional embodiment, the embodiment of the present disclosure further provides an air conditioner control system control method applied to the air conditioner control system described in the above embodiments, and the method comprises:

[0085] By controlling the opening and closing states of the third control valve SV3, the fourth control valve SV4 and the multi-way valve 30 comprised in the air conditioner control system, the mode of the air conditioner control system is controlled.

[0086] Due to the air conditioner control system control method in the embodiments of the present disclosure, the technical features in the embodiments can be referred to the related descriptions of the corresponding technical features in the above embodiments, and will not be repeated here.

[0087] The embodiments of the present disclosure have the same beneficial technical effects as the above embodiments, that is, by controlling the opening and closing states of the third control valve SV3, the fourth control valve SV4 and the multi-way valve 30, the switching of the mode of the air conditioner control system can be controlled, that is, the switching between different modes of the air conditioner control system can be realized, thereby enhancing the diversity of mode switching of the air conditioner control system of the current air conditioner.

[0088] As an optional implementation, the air conditioner control system further comprises a first control valve SV1 and a second control valve SV2, and the mode of the air conditioner control system is controlled by controlling the opening and closing states of the third control valve SV3, the fourth control valve SV4 and the multi-way valve 30 included in the air conditioner control system, including:

[0089] By controlling the third control valve SV3 to be in an open state, the fourth control valve SV4, the multi-way valve 30, the first control valve SV1 and the second control valve SV2 are all in a closed state, so as to control the air conditioner control system to be in a cooling mode;

[0090] By controlling the third control valve SV3 and the multi-way valve 30 to be in an open state, the fourth control valve SV4, the first control valve SV1 and the second control valve SV2 are all in a closed state, so as to control the air conditioner control system to be in a heating mode;

[0091] By controlling the first control valve SV1 to be in an open state and the second control valve SV2 to be in a closed state, the air conditioner control system is controlled to be in a mode of producing domestic hot water and cooling, a mode of producing domestic hot water and heating, or a mode of producing domestic hot water.

[0092] Among them, the cooling mode can be referred to as Cooling mode, the heating mode can be referred to as Heating mode, and the mode of producing domestic hot water can be referred to as Hot water mode.

[0093] It should be noted that when the air conditioning control system is in the cooling mode, the air conditioning control system only needs to cool, and does not need to generate domestic hot water. The hot steam generated by the compressor 10 does not exchange heat when passing through the domestic water heat exchanger 20, and the hot steam can flow into the air side heat exchanger 90 to be condensed. That is, in this mode, the air side heat exchanger 90 can function as a condenser, and the plate heat exchanger 40 can function as an evaporator. It should be noted that the flow distribution diagram of the refrigerant in the air conditioning control system at this time can be seen from FIG. 2.

[0094] It should be noted that when the air conditioning control system is in the heating mode, the air conditioning control system only needs to heat, and does not need to generate domestic hot water. The hot steam generated by the compressor 10 does not exchange heat when passing through the domestic water heat exchanger 20, and the hot steam can be condensed after passing through the first gas-liquid separator 100, the third control valve SV3 and the multi-way valve 30. That is, in this mode, the air side heat exchanger 90 can function as an evaporator, and the plate heat exchanger 40 can function as a condenser. It should be noted that the flow distribution diagram of the refrigerant in the air conditioning control system at this time can be seen from FIG. 3.

[0095] It should be noted that when the air conditioning control system is in the hot water mode, the air conditioning control system only needs to generate domestic hot water, and does not need to heat or cool. The hot steam generated by the compressor 10 can exchange heat in the domestic water heat exchanger 20, that is, the hot steam can be condensed, and the exchanged heat can be used to heat the cold water in the domestic water heat exchanger 20 to generate domestic hot water. The condensed hot steam in the domestic water heat exchanger 20 can enter the subcooler 50 in sequence after passing through the first gas-liquid separator 100, the first control valve SV1, the fifth one-way valve 65 in the one-way valve assembly 60 and the driver liquid cooling module 70, and be further cooled. The high-pressure refrigerant in the subcooler 50 can become low-pressure refrigerant after passing through the main road electronic expansion valve EVO, and the low-pressure refrigerant can be guided into the air side heat exchanger 90 to be fully evaporated. That is, in this mode, the air side heat exchanger 90 can function as an evaporator, and the plate heat exchanger 40 does not exchange heat. It should be noted that the flow distribution diagram of the refrigerant in the air conditioning control system at this time can be seen from FIG. 4.

[0096] In the embodiments of the present disclosure, the switching states of the third control valve SV3, the fourth control valve SV4, the first control valve SV1 and the second control valve SV2 are switched, so that the air conditioning control system can be switched between multiple modes, thereby enhancing the diversity and flexibility of the mode switching of the air conditioning control system of the current air conditioner.

[0097] As an optional implementation, the control of the air conditioning control system in the life hot water production and refrigeration mode, the life hot water production and heating mode or the life hot water production mode by controlling the first control valve SV1 in the open state and the second control valve SV2 in the closed state comprises:

[0098] The control of the air conditioning control system in the life hot water production mode by controlling the first control valve SV1 and the multi-way valve 30 in the open state, and the third control valve SV3, the fourth control valve SV4 and the second control valve SV2 in the closed state.

[0099] The control of the air conditioning control system in the life hot water production and refrigeration mode by controlling the first control valve SV1 in the open state, the third control valve SV3, the fourth control valve SV4, the second control valve SV2 and the multi-way valve 30 in the closed state, wherein the life hot water production is the mode of producing life hot water by recycling all waste heat.

[0100] The control of the air conditioning control system in the life hot water production and refrigeration mode by controlling the first control valve SV1 and the third control valve SV3 in the open state, the fourth control valve SV4, the second control valve SV2 and the multi-way valve 30 in the closed state, wherein the life hot water production is the mode of producing life hot water by recycling part of waste heat.

[0101] The control of the air conditioning control system in the life hot water production and refrigeration mode by controlling the first control valve SV1 and the fourth control valve SV4 in the open state, the third control valve SV3, the second control valve SV2 and the multi-way valve 30 in the closed state, wherein the demand corresponding to the life hot water production is greater than the demand corresponding to the refrigeration mode.

[0102] The control of the air conditioning control system in the life hot water production and heating mode by controlling the first control valve SV1, the third control valve SV3 and the multi-way valve 30 in the open state, and the fourth control valve SV4 and the second control valve SV2 in the closed state.

[0103] The mode of producing domestic hot water and cooling, and the mode of producing domestic hot water by recovering all waste heat can be referred to as Cooling+full heat recovery mode, the mode of producing domestic hot water and cooling, and the mode of producing domestic hot water by recovering part of waste heat can be referred to as Cooling+partial heat recovery mode, the mode of producing domestic hot water and cooling, and the demand corresponding to the mode of producing domestic hot water is greater than the demand corresponding to the mode of cooling can be referred to as Hot water+partial cooling mode, and the mode of producing domestic hot water and heating can be referred to as Heating+hot water mode.

[0104] It should be noted that the demand corresponding to the mode of producing domestic hot water is greater than the demand corresponding to the mode of cooling can be understood as in this mode, the air conditioning control system mainly meets the demand of producing domestic hot water, and the demand of providing cooling is auxiliary, that is, the mode of producing domestic hot water is prior to the mode of cooling.

[0105] It should be noted that the mode of producing domestic hot water and heating can be understood as the air conditioning control system controls the circulation amount of refrigerant in the air conditioning control system according to the demand of domestic hot water and the demand of heating capacity; after meeting the demand of domestic hot water, the high-pressure gaseous refrigerant coming out of the compressor 10 is converted into high-pressure gas-liquid two-phase refrigerant; and the high-pressure gas-liquid two-phase refrigerant passes through the first gas-liquid separator 100, the high-pressure gaseous refrigerant in the high-pressure gas-liquid two-phase refrigerant passes through the third control valve SV3 and the multi-way valve 30 to enter the plate heat exchanger 40 for heating to become liquid refrigerant; and the high-pressure liquid refrigerant in the high-pressure gas-liquid two-phase refrigerant passes through the first control valve SV1 and the fifth one-way valve 65, and is mixed with the above-mentioned liquid refrigerant condensed in the plate heat exchanger 40 and passing through the second one-way valve 62.

[0106] It should be noted that when in the mode of producing domestic hot water and heating, the demand of heating and the demand of domestic hot water are not necessarily equal; the distribution ratio of the demand of heating and the demand of producing domestic hot water can be 10%+90%, 30%+70%, 50%+50%, or 60%+40%, etc., which is not limited here.

[0107] It should be noted that when the air conditioning control system is in the Cooling+full heat recovery mode, the air conditioning control system needs to be cooled and needs to produce domestic hot water, and cooling is its primary task, and all waste heat needs to be recovered for producing domestic hot water. The hot steam generated by the compressor 10 exchanges heat in the domestic water heat exchanger 20 to produce domestic hot water, and the above-mentioned hot steam can be fully condensed in the domestic water heat exchanger 20 to obtain refrigerant, and the refrigerant can pass through the first gas-liquid separator 100, the first control valve SV1, the fifth one-way valve 65 in the one-way valve assembly 60, the driver liquid cooling module 70 in turn, and then enter the subcooler 50 for further cooling, and the high-pressure refrigerant in the subcooler 50 can become low-pressure refrigerant after passing through the main road electronic expansion valve EVO, and the low-pressure refrigerant can be guided into the plate heat exchanger 40 for full evaporation, that is, in this mode, no heat exchange occurs in the air-side heat exchanger 90, and the plate heat exchanger 40 can play the role of an evaporator. It should be noted that the flow distribution diagram of the refrigerant in the air conditioning control system at this time can be seen from FIG. 5.

[0108] It should be noted that when the air conditioning control system is in the Cooling+full heat recovery mode, the air conditioning control system needs to be cooled and needs to produce domestic hot water, and cooling is its primary task, but the demand for producing domestic hot water is not much, and only part of the waste heat needs to be recovered for producing domestic hot water. The hot steam generated by the compressor 10 exchanges heat in the domestic water heat exchanger 20 to produce domestic hot water, and the above-mentioned hot steam is high-pressure hot steam, which can separate the steam and liquid refrigerant in the first gas-liquid separator 100, and the separated steam can be further condensed in the air-side heat exchanger 90 to obtain first refrigerant, and the separated liquid refrigerant can pass through the first control valve SV1, the fifth one-way valve 65 in the one-way valve assembly 60, and the driver liquid cooling module 70 in turn to obtain second refrigerant. The above-mentioned first refrigerant and second refrigerant can be combined in the driver liquid cooling module 70 and further cooled in the subcooler 50, and the refrigerant after the subcooler 50 can be high-pressure refrigerant, and the high-pressure refrigerant in the subcooler 50 can become low-pressure refrigerant after passing through the main road electronic expansion valve EVO, and the low-pressure refrigerant can be guided into the plate heat exchanger 40 for full evaporation, that is, in this mode, the air-side heat exchanger 90 can play the role of a condenser, and the plate heat exchanger 40 can play the role of an evaporator. It should be noted that the flow distribution diagram of the refrigerant in the air conditioning control system at this time can be seen from FIG. 6.

[0109] It should be noted that when the air conditioning control system is in the Hot water+partial cooling mode, the air conditioning control system needs to be cooled and needs to produce domestic hot water at this time, and the production of domestic hot water is its primary task, and the demand for cooling is not high. The hot steam generated by the compressor 10 is heat exchanged in the domestic water heat exchanger 20 to produce domestic hot water, and the above hot steam can be fully condensed in the domestic water heat exchanger 20 to obtain refrigerant, and the refrigerant can pass through the first gas-liquid separator 100, the first control valve SV1, the fifth one-way valve 65 in the one-way valve assembly 60, the driver liquid cooling module 70 in turn and then enter the subcooler 50 for further condensation, and the high-pressure refrigerant in the subcooler 50 can be divided into two parts. A part of the high-pressure refrigerant becomes low-pressure refrigerant after passing through the main road electronic expansion valve EVO, and this part of the low-pressure refrigerant is guided into the plate heat exchanger 40 to be fully evaporated, and another part of the high-pressure refrigerant becomes low-pressure refrigerant after passing through the main road electronic expansion valve EVO. This part of the low-pressure refrigerant is guided into the air-side heat exchanger 90 to be fully evaporated, that is, in this mode, the air-side heat exchanger 90 and the plate heat exchanger 40 can both function as evaporators. It should be noted that the flow distribution diagram of the refrigerant in the air conditioning control system at this time can be seen from FIG. 7.

[0110] It should be noted that when the air conditioning control system is in the Heating+hot water mode, the air conditioning control system needs to be heated and needs to produce domestic hot water. Specifically, the domestic water heat exchanger 20 and the plate heat exchanger 40 can be set, and the load of the compressor 10 and the fan 91 can be adjusted, so that the amount of domestic hot water and heating can be flexibly adjusted to meet different needs of domestic hot water and heating.

[0111] The hot steam generated by the compressor 10 is partially heat-exchanged in the domestic water heat exchanger 20 to generate domestic hot water, and the hot steam is high-pressure hot steam, which can separate the steam and the liquid refrigerant in the first gas-liquid separator 100, and the separated steam can be further condensed in the plate heat exchanger 40 to obtain the first refrigerant, and the separated liquid refrigerant can pass through the first control valve SV1, the fifth one-way valve 65 in the one-way valve assembly 60, and the driver liquid cooling module 70 in sequence to obtain the second refrigerant, and the first refrigerant and the second refrigerant can be combined in the driver liquid cooling module 70 and further cooled in the subcooler 50, and the high-pressure refrigerant in the subcooler 50 can become low-pressure refrigerant after passing through the main road electronic expansion valve EVO, and the low-pressure refrigerant is guided into the air-side heat exchanger 90 for sufficient evaporation, that is, in this mode, the air-side heat exchanger 90 can play the role of an evaporator, and the plate heat exchanger 40 can play the role of an evaporator, and it should be noted that the flow distribution diagram of the refrigerant in the air conditioner control system can be referred to FIG. 8.

[0112] In the embodiments of the present disclosure, the switching of the air conditioner control system between multiple modes can be further specifically implemented, thereby further enhancing the diversity and flexibility of the mode switching of the air conditioner control system of the current air conditioner, and enhancing the use effect and user experience of the air conditioner control system.

[0113] It should be noted that in FIGS. 2 to 8, the refrigerant shown by the A1 line segment in the air conditioner control system can refer to high-pressure gaseous refrigerant, the refrigerant shown by the A2 line segment can refer to low-pressure gaseous refrigerant, the refrigerant shown by the A3 line segment can refer to high-pressure liquid refrigerant, the refrigerant shown by the A4 line segment can refer to low-pressure gaseous-liquid two-phase refrigerant, and the line segment represented by A5 represents that no refrigerant flows through the line segment, that is, the line is temporarily stopped working, in addition, the right side pipe in the plate heat exchanger 40 in FIGS. 2 to 8 can flow water for heat exchange with the refrigerant flowing into the left side pipe of the plate heat exchanger 40. As shown in FIGS. 6 and 8, the refrigerant flowing between the domestic water heat exchanger 20 and the first gas-liquid separator 100 can be high-pressure gaseous-liquid two-phase refrigerant.

[0114] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An air conditioning control system comprising: The compressor, a domestic water heat exchanger, a third control valve, a fourth control valve, a multi-way valve, a plate heat exchanger and a subcooler; The exhaust port of the compressor is communicated with the domestic water heat exchanger, the domestic water heat exchanger is communicated with the input end of the multi-way valve through the third control valve, the first output end of the multi-way valve is communicated with the air inlet of the compressor, the second output end of the multi-way valve is communicated with the subcooler through the plate heat exchanger, the third output end of the multi-way valve is communicated with the first output end of the multi-way valve and the air inlet of the compressor through the fourth control valve respectively, and the third output end of the multi-way valve is communicated with the subcooler.

2. The air conditioner control system according to claim 1, wherein The air conditioner control system further comprises a one-way valve assembly, the one-way valve assembly comprises a first one-way valve and a second one-way valve connected in parallel, the third output end of the multi-way valve is communicated with the subcooler through the first one-way valve, the plate heat exchanger is communicated with the subcooler through the second one-way valve, and the subcooler is further communicated with the input end of the first one-way valve and the input end of the second one-way valve respectively.

3. The air conditioner control system according to claim 2, wherein The air conditioner control system further comprises a driver liquid cooling module, the one-way valve assembly further comprises a third one-way valve and a fourth one-way valve, the first one-way valve and the second one-way valve are both communicated with the subcooler through the driver liquid cooling module, the subcooler is communicated with the input end of the first one-way valve through the third one-way valve, and the subcooler is communicated with the input end of the second one-way valve through the fourth one-way valve.

4. The air conditioner control system according to claim 2, wherein The air conditioner control system further comprises a liquid storage tank, and the plate heat exchanger is communicated with the input end of the second one-way valve through the liquid storage tank.

5. The air conditioner control system according to claim 2, wherein The air conditioner control system further comprises an air-side heat exchanger, and the third output end of the multi-way valve is communicated with the input end of the first one-way valve through the air-side heat exchanger.

6. The air conditioner control system according to claim 2, wherein The air conditioner control system further comprises a first gas-liquid separator and a first control valve, the one-way valve assembly further comprises a fifth one-way valve, the domestic water heat exchanger is communicated with the third control valve through the first gas-liquid separator, the first gas-liquid separator is communicated with the fifth one-way valve through the first control valve, and the fifth one-way valve is communicated with the subcooler.

7. The air conditioner control system according to claim 3, wherein The air conditioner control system further comprises a main path electronic expansion valve and an auxiliary path air supplement electronic expansion valve, the driver liquid cooling module is communicated with the input end of the third one-way valve in sequence through a first pipeline of the subcooler and the main path electronic expansion valve, the driver liquid cooling module is communicated with the input end of the fourth one-way valve in sequence through the first pipeline and the main path electronic expansion valve, the first pipeline is further communicated with a second pipeline of the subcooler through the auxiliary path air supplement electronic expansion valve, and the second pipeline is communicated with the air supplement port of the compressor.

8. The air conditioner control system according to claim 7, wherein The air conditioner control system further comprises a second control valve and a second gas-liquid separator, the first output end of the multi-way valve is communicated with the air inlet of the compressor through the second gas-liquid separator, and the second pipeline is communicated with the second gas-liquid separator through the second control valve.

9. The air conditioner control system according to claim 5, wherein The air conditioner control system further comprises a fan, and the fan is arranged adjacent to the air-side heat exchanger.

10. An air conditioner comprising the air conditioner control system of any one of claims 1 to 9.

11. An air conditioner control system control method applied to the air conditioner control system of any one of claims 1 to 9, the method comprising: controlling a mode of the air conditioner control system by controlling switch states of a third control valve, a fourth control valve and a multi-way valve comprised in the air conditioner control system.

12. The method of claim 11, wherein, The air conditioner control system further comprises: a first control valve and a second control valve, and the controlling a mode of the air conditioner control system by controlling switch states of a third control valve, a fourth control valve and a multi-way valve comprised in the air conditioner control system comprises: controlling the air conditioner control system in a cooling mode by controlling the third control valve to be in an open state and the fourth control valve, the multi-way valve, the first control valve and the second control valve to be in closed states; controlling the air conditioner control system in a heating mode by controlling the third control valve and the multi-way valve to be in open states and the fourth control valve, the first control valve and the second control valve to be in closed states; controlling the air conditioner control system in a domestic hot water production and cooling mode, a domestic hot water production and heating mode or a domestic hot water production mode by controlling the first control valve to be in an open state and the second control valve to be in a closed state.

13. The method of claim 12, wherein, The controlling the air conditioner control system in a domestic hot water production and cooling mode, a domestic hot water production and heating mode or a domestic hot water production mode by controlling the first control valve to be in an open state and the second control valve to be in a closed state comprises: controlling the air conditioner control system in a domestic hot water production mode by controlling the first control valve and the multi-way valve to be in open states and the third control valve, the fourth control valve and the second control valve to be in closed states; controlling the air conditioner control system in a domestic hot water production and cooling mode by controlling the first control valve to be in an open state and the third control valve, the fourth control valve, the second control valve and the multi-way valve to be in closed states, the domestic hot water production being a total waste heat recovery domestic hot water production mode; controlling the air conditioner control system in a domestic hot water production and cooling mode by controlling the first control valve and the third control valve to be in open states and the fourth control valve, the second control valve and the multi-way valve to be in closed states, the domestic hot water production being a partial waste heat recovery domestic hot water production mode; controlling the air conditioner control system in a domestic hot water production and cooling mode by controlling the first control valve and the fourth control valve to be in open states and the third control valve, the second control valve and the multi-way valve to be in closed states, the domestic hot water production corresponding to a demand greater than that of the cooling mode; controlling the air conditioner control system in a domestic hot water production and heating mode by controlling the first control valve, the third control valve and the multi-way valve to be in open states and the fourth control valve and the second control valve to be in closed states.

Images