Air conditioning system, control method of air conditioning system and control device of air conditioning system

Abstract

The invention provides an air conditioning system, a control method of the air conditioning system and a control device of the air conditioning system. The air conditioning system comprises a compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger which are connected through a refrigerant pipeline. The energy storage device is arranged between the indoor heat exchanger and the outdoor heat exchanger and is thermally coupled with the refrigerant pipeline; the bottom of the indoor heat exchanger is further provided with a water receiving piece used for receiving condensate water, the water receiving piece is connected with the energy storage device through a condensate water pipeline, and the condensate water pipeline is provided with an electromagnetic control valve with the adjustable opening degree. According to the air conditioning system, the control method of the air conditioning system and the control device of the air conditioning system, full utilization of cooling capacity and heat can be achieved, recycling of the cooling capacity of condensate water is particularly achieved, and therefore the energy utilization rate of the system is improved, energy consumption of the system is reduced, and the air conditioning system is environmentally friendly and simple and feasible in structure.

Description

Technical Field

[0001] The present invention relates to the field of electrical equipment technology, and in particular to an air-conditioning system, a control method of the air-conditioning system and a control device thereof. Background Art

[0002] In the related art, the existing air-conditioning systems are often unable to fully utilize the cold or heat in the refrigerant during the cooling and heating processes, which often leads to the waste of excess energy in the air-conditioning system. The energy consumption in the air-conditioning system is high and the energy utilization rate is low. In particular, in the cooling mode of the air-conditioning, the condensed water produced by the condensation of the indoor heat exchanger is often directly discharged, and the cold of the condensed water cannot be reused, which reduces the energy utilization rate of the system. Summary of the invention

[0003] The present invention provides an air-conditioning system, a control method for the air-conditioning system and a control device thereof, which are used to solve the defects existing in the prior art and achieve the following technical effects: full utilization of cooling capacity and heat capacity can be achieved, especially the reuse of cooling capacity of condensed water, thereby improving the energy utilization rate of the system and reducing the energy consumption of the system. It is green and environmentally friendly and has a simple and feasible structure.

[0004] An air conditioning system according to a first embodiment of the present invention includes:

[0005] A compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger connected by a refrigerant pipeline;

[0006] an energy storage device, disposed between the indoor heat exchanger and the outdoor heat exchanger and thermally coupled to the refrigerant pipeline;

[0007] The bottom of the indoor heat exchanger is also provided with a water receiving piece for receiving condensed water. The water receiving piece is connected to the energy storage device through a condensed water pipeline, and the condensed water pipeline is provided with an electromagnetic control valve with adjustable opening.

[0008] According to one embodiment of the present invention, a first expansion valve is further provided between the outdoor heat exchanger and the energy storage device, and second refrigerant pipe sections are connected in parallel at both ends of the first refrigerant pipe section where the indoor heat exchanger is located. A second expansion valve and a first stop valve are further provided on the first refrigerant pipe section, and a second stop valve is provided on the second refrigerant pipe section.

[0009] According to one embodiment of the present invention, in cooling mode, the solenoid control valve and the first stop valve are in an open state, and the second stop valve is in a closed state; in heating mode, the solenoid control valve and the second stop valve are both in a closed state, and the first stop valve is in an open state; in defrost mode, the first stop valve and the second stop valve are in an open state, and the solenoid control valve is in a closed state.

[0010] According to one embodiment of the present invention, the energy storage device is also connected to a water supply pipeline for inputting external water, and a third stop valve is provided on the water supply pipeline.

[0011] According to one embodiment of the present invention, a water pump and a filter are also provided on the condensate water pipeline.

[0012] According to a second aspect of the present invention, a control method for an air conditioning system based on the first aspect of the present invention comprises:

[0013] Obtaining a preset operating mode of the air conditioning system;

[0014] The electromagnetic control valve is controlled to be opened or closed according to the preset working mode.

[0015] According to one embodiment of the present invention, the step of controlling the opening or closing of the electromagnetic control valve according to the preset working mode specifically includes:

[0016] When the preset working mode is the cooling mode, controlling the electromagnetic control valve to open;

[0017] When the preset working mode is the heating mode or the defrosting mode, the electromagnetic control valve is controlled to be closed.

[0018] According to an embodiment of the present invention, after the step of obtaining the preset working mode of the air conditioning system, the control method of the air conditioning system further includes:

[0019] When the preset working mode is the heating mode, the second stop valve is controlled to be closed, and the first stop valve is controlled to be opened;

[0020] When the preset working mode is the defrost mode, both the first stop valve and the second stop valve are controlled to be opened.

[0021] According to one embodiment of the present invention, after the step of obtaining the preset working mode of the air conditioning system, the method further includes:

[0022] When the preset working mode is the cooling mode, the first expansion valve is controlled to open to a maximum opening, and the second expansion valve is controlled to open to a smaller opening;

[0023] When the preset working mode is the heating mode, the first expansion valve is controlled to be opened to a smaller opening, and the second expansion valve is controlled to be opened to a maximum opening;

[0024] When the preset working mode is the defrosting mode, the opening degree of the second expansion valve is controlled to increase.

[0025] According to a third aspect of the present invention, a control device for an air conditioning system based on the first aspect of the present invention comprises:

[0026] An acquisition module, used to acquire the preset working mode of the air conditioning system;

[0027] A control module is used to control the opening or closing of the electromagnetic control valve according to the preset working mode.

[0028] An electronic device according to an embodiment of the fourth aspect of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the program, the control method of the air-conditioning system as described in the embodiment of the second aspect of the present invention is implemented.

[0029] The present invention provides an air-conditioning system, which adds a linkage energy storage subsystem composed of main components such as an energy storage device, a water receiving part and a condensed water pipe on the basis of the original air-conditioning system. On the one hand, in the heating mode, the energy storage device can store the excess heat in the system, and release the heat again in the subsequent defrosting mode to realize the defrosting process of the outdoor heat exchanger; on the other hand, in the cooling mode, the energy storage device can use the coldness in the condensed water to overcool the refrigerant in the air-conditioning system, thereby improving the energy efficiency of the system. In summary, the system of the present invention can realize the full utilization of cold and heat, especially realize the reuse of the coldness of condensed water, thereby improving the energy utilization rate of the system and reducing the energy consumption of the system. It is green and environmentally friendly and has a simple and feasible structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 is a structural schematic diagram of an air conditioning system provided by the present invention;

[0032] Figure 2 is a schematic structural diagram of the air-conditioning system provided by the present invention in cooling mode;

[0033] Figure 3 is a schematic structural diagram of the air-conditioning system provided by the present invention in a heating mode;

[0034] Figure 4 is a schematic structural diagram of the air conditioning system provided by the present invention in a defrosting mode;

[0035] Figure 5is a schematic diagram of the steps of the control method of the air conditioning system provided by the present invention;

[0036] Figure 6 is a schematic structural diagram of a control device for an air conditioning system provided by the present invention;

[0037] Figure 7 It is a structural schematic diagram of the electronic device provided by the present invention.

[0038] Reference numerals:

[0039] 1. Compressor; 2. Four-way valve; 3. Indoor heat exchanger; 31. Water connection fittings; 32. Condensate pipe; 33. Solenoid control valve; 4. Outdoor heat exchanger; 5. Gas-liquid separator; 6. Energy storage device; 71. First refrigerant pipe; 72. Second refrigerant pipe; 81. Second expansion valve; 82. First expansion valve; 83. First stop valve; 84. Second stop valve; 85. Third stop valve; 91. Water pump; 92. Filter; 93. Water supply pipe; 110. Acquisition module; 120. Control module. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] An air conditioning system and a control method and a control device for the air conditioning system provided by the present invention will be described below with reference to the accompanying drawings.

[0042] like Figures 1 to 4 As shown, the air conditioning system according to the first embodiment of the present invention includes a compressor 1, a four-way valve 2, an indoor heat exchanger 3, an outdoor heat exchanger 4 and an energy storage device 6.

[0043] The compressor 1, the four-way valve 2, the indoor heat exchanger 3 and the outdoor heat exchanger 4 are connected through a refrigerant pipeline. Among them, the four valve ports of the four-way valve 2 are respectively connected to the exhaust port of the compressor 1, the indoor heat exchanger 3, the outdoor heat exchanger 4 and the air intake of the compressor 1 through the refrigerant pipeline. A gas-liquid separator 5 is also provided between the four-way valve 2 and the air intake of the compressor 1, and the liquid inlet of the gas-liquid separator 5 is connected to the four-way valve 2, and the gas outlet of the gas-liquid separator 5 is connected to the air intake of the compressor 1.

[0044] The energy storage device 6 is arranged between the indoor heat exchanger 3 and the outdoor heat exchanger 4 and is thermally coupled with the refrigerant pipe. It can be understood that the energy storage device 6 is used to store excess cold or heat in the refrigerant pipe through heat exchange in the air-conditioning system, and release the energy again to the air-conditioning system under certain circumstances to assist its operation.

[0045] A water receiving piece 31 for receiving condensed water is also provided at the bottom of the indoor heat exchanger 3 . The water receiving piece 31 is connected to the energy storage device 6 through a condensed water pipe 32 , and an electromagnetic control valve 33 with an adjustable opening is provided on the condensed water pipe 32 .

[0046] The specific working principle of the air conditioning system according to the embodiment of the present invention is as follows: the system adds a linkage energy storage system composed of an energy storage device 6, a water receiving part 31 and a condensed water pipe 32 on the basis of the original components, wherein when the air conditioning system is in various working modes such as heating mode, cooling mode and defrosting mode, the energy storage device 6 absorbs and stores the excess cold or heat in the refrigerant pipe by heat exchange, and releases the energy to the air conditioning system again in certain circumstances to assist its operation. In particular, when the air conditioning system is in cooling mode, the condensed water can transfer the cold to the energy storage device 6 through the condensed water pipe 32, so that the energy storage device 6 can realize the storage and reuse of the cold of the condensed water.

[0047] For example, Figure 2 As shown, when the air conditioner is in cooling mode, the electromagnetic control valve 33 on the condensate pipe 32 is opened. Since the indoor heat exchanger 3 will produce condensate with low temperature during the cooling process, the condensate will fall into the water receiving part 31 and finally flow into the energy storage device 6 through the condensate pipe 32, thereby transferring the cold in the condensate to the energy storage device 6. At this time, the energy storage device 6 can use the cold in the condensate to supercool the refrigerant in the air-conditioning system, thereby increasing the energy consumption of the system.

[0048] like Figure 3 As shown, when the air conditioner is in heating mode, the indoor heat exchanger 3 will not produce condensed water, so the electromagnetic control valve 33 is closed, and the refrigerant first releases heat through the indoor heat exchanger 3, and then enters the energy storage device 6 to store the residual heat therein, and finally enters the outdoor heat exchanger 4 to evaporate and absorb heat. At this time, the high-temperature refrigerant flowing out of the indoor heat exchanger 3 exchanges heat with the energy storage device 6, and the excess heat in the high-temperature refrigerant is stored in the energy storage device 6.

[0049] like Figure 3As shown, as the heating process of the air conditioner continues, the outdoor heat exchanger 4 of the air conditioner will be frosted. Therefore, when the outdoor heat exchanger 4 is frosted to a certain extent, the air conditioner needs to execute the defrost mode. In the defrost mode, the solenoid control valve 33 is still in a closed state. At this time, the energy storage device 6 releases the heat stored in advance to the air-conditioning system again to heat the refrigerant, thereby heating the outdoor heat exchanger 4 through the heated refrigerant to realize the defrost process of the outdoor heat exchanger 4.

[0050] In the related art, the existing air-conditioning systems are often unable to fully utilize the cold or heat in the refrigerant during the cooling and heating processes, which often leads to the waste of excess energy in the air-conditioning system. The energy consumption in the air-conditioning system is high and the energy utilization rate is low. In particular, in the cooling mode of the air-conditioning, the condensed water produced by the condensation of the indoor heat exchanger is often directly discharged, and the cold of the condensed water cannot be reused, which reduces the energy utilization rate of the system.

[0051] Therefore, in order to solve the technical problems existing in the above-mentioned related technologies, the present invention provides an air-conditioning system, which adds a linkage energy storage subsystem composed of main components such as an energy storage device 6, a water receiving part 31 and a condensed water pipe 32 on the basis of the original air-conditioning system. On the one hand, in the heating mode, the energy storage device 6 can store the excess heat in the system, and release the heat again in the subsequent defrost mode to realize the defrosting process of the outdoor heat exchanger 4; on the other hand, in the cooling mode, the energy storage device 6 can use the cold in the condensed water to overcool the refrigerant in the air-conditioning system, thereby improving the energy efficiency of the system. In summary, the system of the present invention can fully utilize the cold and heat, especially realize the reuse of the cold of the condensed water, thereby improving the energy utilization rate of the system and reducing the energy consumption of the system. It is green and environmentally friendly and has a simple and feasible structure.

[0052] like Figure 1 As shown, according to some embodiments of the present invention, a second refrigerant pipe portion 72 is connected in parallel to both ends of the first refrigerant pipe portion 71 where the indoor heat exchanger 3 is located, a second expansion valve 81 and a first stop valve 83 are also provided on the first refrigerant pipe portion 71, and a second stop valve 84 is provided on the second refrigerant pipe portion 72.

[0053] In this embodiment, between the energy storage device 6 and the four-way valve 2, the refrigerant pipeline includes two refrigerant pipe sections connected in parallel, namely a first refrigerant pipe section 71 and a second refrigerant pipe section 72, wherein the first refrigerant pipe section 71 is provided with an indoor heat exchanger 3, a first stop valve 83 and a second expansion valve 81, and the second refrigerant pipe section 72 is provided with a second stop valve 84. It can be understood that when the second stop valve 84 is opened and the first stop valve 83 is closed, the second refrigerant pipe section 72 realizes a short circuit of the indoor heat exchanger 3.

[0054] like Figure 1As shown, further, a first expansion valve 82 is provided between the outdoor heat exchanger 4 and the energy storage device 6 .

[0055] Further, in some specific embodiments of the present invention, Figure 2 As shown, in the cooling mode, the electromagnetic control valve 33 and the first stop valve 83 are in the open state, and the second stop valve 84 is in the closed state; Figure 3 As shown, in the heating mode, the electromagnetic control valve 33 and the second stop valve 84 are both in the closed state, and the first stop valve 83 is in the open state; Figure 4 As shown, in the defrost mode, the first stop valve 83 and the second stop valve 84 are in an open state, and the electromagnetic control valve 33 is in a closed state.

[0056] In the related art, the air conditioner needs to reverse the four-way valve when defrosting the outdoor heat exchanger. The above defrosting method cannot achieve defrosting and indoor heating at the same time, which will cause the indoor heating to be unable to proceed during the defrosting process, and the indoor temperature will fluctuate greatly, affecting the indoor thermal comfort, thereby making the user experience poor.

[0057] Therefore, in order to solve the technical defects existing in the above-mentioned related technologies, this embodiment adds a second refrigerant pipe 72 connected in parallel with the indoor heat exchanger 3 on the basis of the structure of the energy absorption device. That is, the system of the present invention can realize non-reversing defrosting of the four-way valve 2 through the structure of the energy storage device 6 and the second refrigerant pipe 72, thereby realizing the outdoor defrosting process and the indoor heating process at the same time, and ensuring normal indoor heating while thoroughly defrosting the outdoor, thereby improving the indoor thermal comfort and improving the user experience.

[0058] Specifically, the specific working process and principle of the air conditioning system to achieve heating and defrosting are as follows:

[0059] like Figure 3 As shown, when the air conditioner is in the heating mode, the first stop valve 83 is opened and the second stop valve 84 is closed, and the indoor heat exchanger 3 realizes condensation and heat release to the indoor environment. After the heating mode is operated for a long time, the surface temperature of the outdoor heat exchanger 4 is too low due to the heat absorption by evaporation. At this time, the outdoor heat exchanger 4 is severely frosted, so the air conditioner further executes the defrost mode, such as Figure 4As shown, after the air conditioner enters the defrost mode, the four-way valve 2 does not need to be reversed, and the second stop valve 84 is switched to the open state. At this time, the high-temperature and high-pressure refrigerant flowing out of the exhaust port in the compressor 1 is divided into two paths after passing through the four-way valve 2. One path of refrigerant passes through the first refrigerant pipe 71 and flows through the indoor heat exchanger 3 to normally condense and release heat to the indoor environment. The other path of refrigerant passes through the second refrigerant pipe 72. The two paths of refrigerant converge in front of the energy storage device 6 and flow through the energy storage device 6. In the above process, the refrigerant brings out the heat stored in the energy storage device 6 in advance and further flows through the outdoor heat exchanger 4, thereby realizing the defrosting process of the outdoor heat exchanger 4.

[0060] From the above, it can be seen that the system of the present invention can not only ensure normal indoor heating during the defrosting process, but also ensure the defrosting effect of the outdoor heat exchanger 4, thereby achieving heating and defrosting.

[0061] like Figure 1 As shown, according to some embodiments of the present invention, the energy storage device 6 is also connected to a water supply pipeline 93 for inputting external water, and a third stop valve 85 is provided on the water supply pipeline 93.

[0062] In this way, when the waste heat / waste cold obtained by the energy storage device 6 from the air-conditioning heating / cooling cycle cannot meet the system's usage requirements, external high-temperature hot water or low-temperature cold water can be input into the energy storage device 6 through the water supply pipe 93, thereby supplementing the required heat / coldness of the energy storage device 6.

[0063] According to other embodiments of the present invention, a temperature regulating component for heating or cooling the energy storage device 6 is further provided in the air-conditioning system. In this way, when the waste heat / waste cold obtained by the energy storage device 6 from the air-conditioning heating / cooling cycle cannot meet the use requirements of the system, the energy storage device 6 can be heated or cooled by the temperature regulating component, thereby replenishing the required heat / cold for the energy storage device 6.

[0064] like Figure 1 As shown, according to some embodiments of the present invention, a water pump 91 and a filter 92 are further provided on the condensed water pipeline 32. The water pump 91 is used to pump the condensed water in the water receiving part 31 into the energy storage device 6, and the filter can filter the impurities in the condensed water, thereby preventing too many impurities from entering the energy storage device 6, and ensuring the normal use of the energy storage device 6.

[0065] It should be pointed out that the energy storage device 6 can be a water tank structure for storing cold water or hot water. In this case, the outlet of the condensate pipe 32 is directly connected to the water inlet of the energy storage device 6, and the water supply pipe 93 is also directly connected to the water inlet of the energy storage device 6; alternatively, the energy storage device 6 can also be other energy storage structures using energy storage materials. In this case, the condensate pipe 32 and the water supply pipe 93 both flow through the energy storage device 6 and perform heat exchange with the energy storage device 6. The present invention does not specifically limit the specific energy storage structure of the energy storage device 6.

[0066] A control method for an air conditioning system based on the first aspect of the embodiment described above is introduced below.

[0067] like Figure 5 As shown, a control method for an air conditioning system according to a second aspect of an embodiment of the present invention includes:

[0068] Step S1, obtaining a preset working mode of the air conditioning system;

[0069] Step S2, controlling the opening or closing of the electromagnetic control valve 33 according to a preset working mode.

[0070] It can be understood that the above-mentioned preset working mode is: a pre-set working mode to be executed by the air conditioner. The preset working mode can be an instruction issued by the user through a remote control, or it can be a working mode to be performed pre-stored in the system. The present invention does not make any special limitations here.

[0071] According to some embodiments of the present invention, the step of controlling the opening or closing of the electromagnetic control valve 33 according to the preset working mode specifically includes:

[0072] When the preset working mode is the cooling mode, the electromagnetic control valve 33 is controlled to open;

[0073] When the preset working mode is the heating mode or the defrosting mode, the electromagnetic control valve 33 is controlled to be closed.

[0074] In this embodiment, when the air conditioner needs to enter the cooling mode, it is necessary to control the four-way valve 2 of the air conditioner to switch to the cooling mode, and at the same time, open the electromagnetic control valve 33, control the first stop valve 83 to open, and control the second stop valve 84 to close. At this time, the condensed water generated by the indoor heat exchanger 3 is collected in the water receiving part 31, and the cold energy is transferred to the energy storage device 6 through the condensed water pipe 32, so that the energy storage device 6 can use the cold energy of the condensed water to supercool the refrigerant in the system, thereby realizing the improvement of the energy efficiency of the air-conditioning system and realizing the recycling of the cold energy of the condensed water.

[0075] When the air conditioner enters the heating mode or the defrost mode, it is necessary to control the four-way valve 2 of the air conditioner to switch to the heating mode, and at the same time close the electromagnetic control valve 33, and keep the first stop valve 83 open, and determine the opening and closing of the second stop valve 84 according to the heating mode or the defrost mode. At this time, the indoor heat exchanger 3 heats the indoor room without generating condensed water, so the energy storage device 6 is used to store the waste heat of the refrigerant in the system and use the waste heat for the defrost process of the outdoor heat exchanger 4.

[0076] Furthermore, after the step of obtaining the preset working mode of the air-conditioning system, the control method of the air-conditioning system further includes:

[0077] When the preset working mode is the heating mode, the second stop valve 84 is controlled to be closed, and the first stop valve 83 is controlled to be opened;

[0078] When the preset working mode is the defrosting mode, the first stop valve 83 and the second stop valve 84 are both controlled to be open.

[0079] In this embodiment, when the air conditioner is running in the heating mode, the first stop valve 83 is opened and the second stop valve 84 is closed, and the indoor heat exchanger 3 realizes condensation and heat release to the indoor environment. After running in the heating mode for a long time, the surface temperature of the outdoor heat exchanger 4 is too low due to evaporation heat absorption. At this time, the outdoor heat exchanger 4 is severely frosted, so the air conditioner further executes the defrost mode. After the air conditioner enters the defrost mode, the four-way valve 2 does not need to be reversed, and the second stop valve 84 is switched to the open state. At this time, the high-temperature and high-pressure refrigerant flowing out of the exhaust port in the compressor 1 is divided into two paths after passing through the four-way valve 2. One path of refrigerant flows through the indoor heat exchanger 3 through the first refrigerant pipe portion 71 to normally condense and release heat to the indoor environment, and the other path of refrigerant passes through the second refrigerant pipe portion 72. The two paths of refrigerant merge in front of the energy storage device 6 and flow through the energy storage device 6. In the above process, the refrigerant takes out the heat stored in the energy storage device 6 in advance and further flows through the outdoor heat exchanger 4, thereby realizing the defrosting process of the outdoor heat exchanger 4.

[0080] According to some embodiments of the present invention, after the step of controlling the electromagnetic control valve 33 to open when the preset working mode is the cooling mode, the control method of the air conditioning system further includes:

[0081] Obtaining the refrigerant subcooling degree in the refrigerant pipeline between the outdoor heat exchanger 4 and the indoor heat exchanger 3;

[0082] The opening of the electromagnetic control valve 33 is adjusted according to the range of the refrigerant supercooling degree, wherein the opening of the electromagnetic control valve 33 is negatively correlated with the refrigerant supercooling degree.

[0083] It can be understood that when the refrigerant subcooling is lower, the energy efficiency of the system is lower. At this time, in order to improve the system energy efficiency, it is necessary to control the opening of the electromagnetic control valve 33 to be larger, so that the condensed water can provide more cooling to the energy storage device 6, and then the energy storage device 6 can increase the refrigerant subcooling, thereby increasing the system energy consumption by increasing the refrigerant subcooling.

[0084] In a specific embodiment, the step of adjusting the opening of the electromagnetic control valve 33 according to the range of the refrigerant supercooling degree includes:

[0085] When the refrigerant subcooling degree is in the first subcooling degree range, the opening degree of the electromagnetic control valve 33 is adjusted to the first opening degree;

[0086] When the refrigerant subcooling degree is in the second subcooling degree range, the opening degree of the electromagnetic control valve 33 is adjusted to the second opening degree;

[0087] When the refrigerant subcooling degree is in the third subcooling degree range, the opening degree of the electromagnetic control valve 33 is adjusted to the maximum opening degree.

[0088] The first subcooling interval is larger than the second subcooling interval, the second subcooling interval is larger than the third subcooling interval, the first opening is smaller than the second opening, and the second opening is smaller than the maximum opening.

[0089] The control device of the air-conditioning system provided by the present invention is described below. The control device of the air-conditioning system described below and the control method of the air-conditioning system described above can be referred to each other.

[0090] like Figure 6 As shown, according to the third aspect of the present invention, a control device for an air conditioning system based on the first aspect of the present invention comprises:

[0091] An acquisition module 110 is used to acquire a preset working mode of the air conditioning system;

[0092] The control module 120 is used to control the opening or closing of the electromagnetic control valve 33 according to a preset working mode.

[0093] Figure 7 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 7As shown, the electronic device may include: a processor 810, a communication interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication interface 820 and the memory 830 communicate with each other through the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute the control method of the air conditioning system, including: obtaining a preset working mode of the air conditioning system; and controlling the opening or closing of the electromagnetic control valve 33 according to the preset working mode.

[0094] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0095] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method of the air-conditioning system provided by the above methods, including: obtaining a preset operating mode of the air-conditioning system; and controlling the opening or closing of the solenoid control valve 33 according to the preset operating mode.

[0096] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the control method of the air-conditioning system provided by the above-mentioned methods, including: obtaining a preset working mode of the air-conditioning system; and controlling the opening or closing of the solenoid control valve 33 according to the preset working mode.

[0097] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0098] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioning system, characterized in that: include: A compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger connected by a refrigerant pipeline; an energy storage device, disposed between the indoor heat exchanger and the outdoor heat exchanger and thermally coupled to the refrigerant pipeline; The bottom of the indoor heat exchanger is also provided with a water receiving piece for receiving condensed water. The water receiving piece is connected to the energy storage device through a condensed water pipeline, and the condensed water pipeline is provided with an electromagnetic control valve with adjustable opening.

2. The air conditioning system according to claim 1, characterized in that: A first expansion valve is also provided between the outdoor heat exchanger and the energy storage device. Second refrigerant pipe parts are connected in parallel at both ends of the first refrigerant pipe part where the indoor heat exchanger is located. A second expansion valve and a first stop valve are also provided on the first refrigerant pipe part, and a second stop valve is provided on the second refrigerant pipe part.

3. The air conditioning system according to claim 2, characterized in that: In cooling mode, the solenoid control valve and the first stop valve are in an open state, and the second stop valve is in a closed state; in heating mode, the solenoid control valve and the second stop valve are both in a closed state, and the first stop valve is in an open state; in defrosting mode, the first stop valve and the second stop valve are in an open state, and the solenoid control valve is in a closed state.

4. The air conditioning system according to any one of claims 1 to 3, characterized in that: The energy storage device is also connected to a water supply pipeline for inputting external water, and a third stop valve is arranged on the water supply pipeline.

5. The air conditioning system according to any one of claims 1 to 3, characterized in that: The condensate water pipeline is also provided with a water pump and a filter.

6. A control method for an air conditioning system according to any one of claims 1 to 5, characterized in that: include: Obtaining a preset operating mode of the air conditioning system; The electromagnetic control valve is controlled to be opened or closed according to the preset working mode.

7. The control method of the air conditioning system according to claim 6, characterized in that: The step of controlling the opening or closing of the electromagnetic control valve according to the preset working mode specifically includes: When the preset working mode is the cooling mode, controlling the electromagnetic control valve to open; When the preset working mode is the heating mode or the defrosting mode, the electromagnetic control valve is controlled to be closed.

8. The control method of the air conditioning system according to claim 7, characterized in that: After the step of obtaining the preset working mode of the air conditioning system, the method further includes: When the preset working mode is the heating mode, the second stop valve is controlled to be closed, and the first stop valve is controlled to be opened; When the preset working mode is the defrost mode, both the first stop valve and the second stop valve are controlled to be opened.

9. The control method of the air conditioning system according to any one of claims 6 to 8, characterized in that: After the step of obtaining the preset working mode of the air conditioning system, the method further includes: When the preset working mode is the cooling mode, the first expansion valve is controlled to open to a maximum opening, and the second expansion valve is controlled to open to a smaller opening; When the preset working mode is the heating mode, the first expansion valve is controlled to be opened to a smaller opening, and the second expansion valve is controlled to be opened to a maximum opening; When the preset working mode is the defrosting mode, the opening degree of the second expansion valve is controlled to increase.

10. A control device for an air conditioning system according to any one of claims 1 to 5, characterized in that: include: An acquisition module, used to acquire the preset working mode of the air conditioning system; A control module is used to control the opening or closing of the electromagnetic control valve according to the preset working mode.

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