Air conditioner and control method and device of air conditioner

Abstract

The invention provides an air conditioner and a control method and device of the air conditioner. The air conditioner comprises a compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger which are connected through a refrigerant pipeline. The heat storage device is in heat transfer connection with a computer board of an air conditioner outdoor unit through the first heat transfer loop, and the heat storage device is in heat transfer connection with the indoor heat exchanger through the second heat transfer loop; a first valve is arranged on the first heat transfer loop, a second valve is arranged on the second heat transfer loop, and the first valve and the second valve are both in an open state in a sterilization mode of the air conditioner. An electric heating device does not need to be additionally arranged in the air conditioner, waste heat in the system is reused, the structure is simple, and power consumption is low. In the sterilization mode, the indoor fan of the air conditioner can still operate normally, and therefore the indoor heat exchanger and indoor flowing air can be comprehensively sterilized.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and in particular to an air conditioner, a control method and a control device for the air conditioner. Background Art

[0002] At present, in the selection of air conditioner functions, more and more users prefer to choose air conditioners with sterilization functions. Previous inventions often operate the heating system, do not run the indoor fan, and add electric heating to make the evaporator reach a high temperature to achieve a sterilization effect. However, the disadvantages of the above-mentioned related technologies are as follows: a. If the fan does not turn, the air will not flow, and the indoor air cannot be fully sterilized; b. Electric heating consumes a lot of electricity and wastes electricity. Summary of the invention

[0003] The present invention provides an air conditioner, an air conditioner control method and a control device to solve the defects in the prior art and achieve the following technical effects: no additional electric heating device is required in the air conditioner, but waste heat in the system is reused, with a simple structure and low power consumption. In addition, in the sterilization mode, the indoor fan of the air conditioner can still operate normally, so that the indoor heat exchanger and the indoor flowing air can be fully sterilized.

[0004] An air conditioner according to a first embodiment of the present invention comprises:

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

[0006] A heat storage device, a first heat transfer loop and a second heat transfer loop, wherein the heat storage device is heat-transfer connected to a computer board of an outdoor unit of an air conditioner through the first heat transfer loop, and the heat storage device is heat-transfer connected to the indoor heat exchanger through the second heat transfer loop;

[0007] The first heat transfer loop is provided with a first valve, and the second heat transfer loop is provided with a second valve. In the sterilization mode of the air conditioner, the first valve and the second valve are both in an open state.

[0008] According to one embodiment of the present invention, the first valve is a solenoid valve and the second valve is an electronic expansion valve with adjustable opening.

[0009] According to one embodiment of the present invention, the first heat transfer loop is heat-transferringly connected to the power module on the computer board.

[0010] According to an embodiment of the present invention, in the heating mode of the air conditioner, the second heat transfer circuit is connected to the refrigerant pipeline located at the inlet of the indoor heat exchanger.

[0011] According to an embodiment of the present invention, an ultraviolet sterilization device is further provided in the air conditioner, and the ultraviolet sterilization device is arranged opposite to the indoor evaporator.

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

[0013] In the heating mode, a signal for controlling the air conditioner to enter a sterilization mode is received, and a heat storage temperature of the heat storage device and a heating temperature of the indoor heat exchanger are obtained;

[0014] The working state of the first valve and / or the second valve is controlled according to the heat storage temperature and / or the heating temperature.

[0015] According to an embodiment of the present invention, the step of controlling the working state of the first valve and / or the second valve according to the heat storage temperature and / or the heating temperature specifically includes:

[0016] According to the heat storage temperature being lower than the heating temperature, the first valve is controlled to be opened.

[0017] According to one embodiment of the present invention, the heating temperature includes the inlet temperature, coil temperature and outlet temperature of the indoor heat exchanger;

[0018] Then the step of controlling the working state of the first valve and / or the second valve according to the heat storage temperature and / or the heating temperature specifically includes:

[0019] When the inlet temperature, the coil temperature and the outlet temperature are all lower than the heat storage temperature, the working state of the second valve is controlled according to the comparison results between the inlet temperature, the coil temperature and the outlet temperature and the preset sterilization temperature respectively.

[0020] According to an embodiment of the present invention, when the inlet temperature, the coil temperature and the outlet temperature are all lower than the heat storage temperature, the step of controlling the working state of the second valve according to the comparison results between the inlet temperature, the coil temperature and the outlet temperature and the preset sterilization temperature, specifically includes:

[0021] When the inlet temperature, the coil temperature and the outlet temperature are all lower than the thermal storage temperature;

[0022] Determining that the inlet temperature, the coil temperature, and the outlet temperature are all lower than the preset sterilization temperature, and controlling the second valve to be in an open state and at a first opening degree;

[0023] Determining that two of the inlet temperature, the coil temperature, and the outlet temperature are less than the preset sterilization temperature, and controlling the second valve to be in an open state and at a second opening degree;

[0024] Determining that one of the inlet temperature, the coil temperature, and the outlet temperature is less than the preset sterilization temperature, and controlling the second valve to be in an open state and at a third opening degree;

[0025] Determining that the inlet temperature, the coil temperature, and the outlet temperature are all greater than the preset sterilization temperature, and controlling the second valve to be in a closed state;

[0026] The first opening is greater than the second opening, and the second opening is greater than the third opening.

[0027] According to an embodiment of the present invention, after receiving a signal for controlling the air conditioner to enter a sterilization mode in the heating mode and obtaining the heat storage temperature of the heat storage device and the heating temperature of the indoor heat exchanger, the step further includes:

[0028] When the inlet temperature, the coil temperature and the outlet temperature are all lower than the preset sterilization temperature, the compressor is controlled to increase the frequency to the first frequency and the indoor fan is controlled to turn to low wind;

[0029] When two of the inlet temperature, the coil temperature and the outlet temperature are less than the preset sterilization temperature, the compressor is controlled to increase the frequency to a second frequency and the indoor fan is controlled to turn to a low wind;

[0030] When one of the inlet temperature, the coil temperature and the outlet temperature is less than the preset sterilization temperature, the compressor is controlled to increase the frequency to a third frequency and the indoor fan is controlled to turn to a low wind;

[0031] When the inlet temperature, the coil temperature and the outlet temperature are all greater than the preset sterilization temperature, the indoor fan is controlled to turn to low wind, and the compressor frequency remains unchanged;

[0032] The first frequency is greater than the second frequency, and the second frequency is greater than the third frequency.

[0033] According to one embodiment of the present invention, the air conditioner control method further includes:

[0034] In the heating mode, a signal for controlling the air conditioner to enter a sterilization mode is received, and the ultraviolet sterilization device is controlled to turn on;

[0035] It is determined that the ultraviolet sterilization device is turned on, and the working parameters of the ultraviolet sterilization device are adjusted according to the heating temperature.

[0036] According to a third aspect of the present invention, a control device for an air conditioner based on the first aspect of the present invention comprises:

[0037] An acquisition module is used to, in the heating mode, receive a signal for controlling the air conditioner to enter a sterilization mode, and acquire the heat storage temperature of the heat storage device and the heating temperature of the indoor heat exchanger;

[0038] A control module is used to control the working state of the first valve and / or the second valve according to the heat storage temperature and / or the heating temperature.

[0039] The present invention provides an air conditioner and a control method and device thereof. The air conditioner is provided with a heat storage device for storing waste heat of a computer board, so that when the temperature of the indoor heat exchanger does not meet the standard, the pre-stored heat in the heat storage device can be used to heat the indoor heat exchanger. In this way, on the one hand, the waste heat generated by the work of the computer board is effectively utilized, and the heat dissipation efficiency of the computer board is improved, thereby improving the energy utilization rate and enhancing the working performance of the computer board; on the other hand, there is no need to set up an additional electric heating device in the air conditioner, but the waste heat in the system is reused, which has a simple structure and low power consumption. In addition, in the sterilization mode, the indoor fan of the air conditioner can still operate normally, so that the indoor heat exchanger and the indoor flowing air can be fully sterilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] 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.

[0041] Figure 1 It is a structural schematic diagram of the air conditioner provided by the present invention;

[0042] Figure 2 It is a flow chart of the air conditioner control method provided by the present invention;

[0043] Figure 3 is a structural schematic diagram of the control device of the air conditioner provided by the present invention;

[0044] Figure 4 It is a structural schematic diagram of the electronic device provided by the present invention.

[0045] Reference numerals:

[0046] 1. Compressor; 2. Four-way valve; 3. Indoor heat exchanger; 4. Outdoor heat exchanger; 5. Heat storage device; 6. First heat transfer circuit; 61. First valve; 7. Second heat transfer circuit; 71. Second valve; 8. Power module. DETAILED DESCRIPTION

[0047] 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.

[0048] The following describes the air conditioner, air conditioner control method and air conditioner control device proposed in the present invention with reference to the accompanying drawings. It should be pointed out that the air conditioner control method described in the second aspect of the present invention and the air conditioner control device described in the third aspect of the present invention are both based on the air conditioner described in the first aspect of the present invention.

[0049] like Figure 1 As shown, the air conditioner 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, a heat storage device 5, a first heat transfer circuit 6 and a second heat transfer circuit 7.

[0050] 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.

[0051] The heat storage device 5 is heat-transferably connected to the computer board of the air-conditioning outdoor unit through the first heat transfer loop 6 , and the heat storage device 5 is heat-transferably connected to the indoor heat exchanger 3 through the second heat transfer loop 7 .

[0052] The first heat transfer loop 6 is provided with a first valve 61 , and the second heat transfer loop 7 is provided with a second valve 71 . In the sterilization mode of the air conditioner, the first valve 61 and the second valve 71 are both in an open state.

[0053] It should be pointed out that the above-mentioned “the heat storage device 5 is heat-transfer connected to the computer board of the air-conditioning outdoor unit through the first heat transfer loop 6” means: the first heat transfer loop 6 performs heat exchange with the computer board of the air-conditioning outdoor unit to absorb the heat of the computer board through the refrigerant, and further transfers the heat to the heat storage device 5 through heat exchange, thereby realizing the storage of the heat of the computer board by the heat storage device 5; the above-mentioned “the heat storage device 5 is heat-transfer connected to the indoor heat exchanger 3 through the second heat transfer loop 7” means: the second heat transfer loop 7 performs heat exchange with the heat storage device 5 to absorb the heat stored in the heat storage device 5 through the refrigerant, and further transfers the heat to the indoor heat exchanger 3 through heat exchange, thereby realizing heating and sterilization of the indoor heat exchanger 3, and at the same time realizing the reuse of waste heat from the computer board.

[0054] The specific working principle of the air conditioner according to the embodiment of the present invention is as follows: during the daily use of the air conditioner, the computer board in the outdoor unit will generate a lot of waste heat during the operation. At this time, the refrigerant in the first heat transfer loop 6 exchanges heat with the computer board, and the refrigerant absorbs the waste heat generated by the computer board during the operation, and further exchanges heat with the heat storage device 5, thereby storing the waste heat of the computer board in the heat storage device 5. In the heating mode, if the air conditioner receives the user's working instruction to enter the sterilization mode, the controller of the air conditioner will first obtain the current heating temperature of the indoor heat exchanger 3 and the preset sterilization temperature pre-stored in the system. When the heating temperature cannot reach the preset sterilization temperature, in order to meet the sterilization requirements inside the air conditioner, the controller will control the second valve 71 to open. At this time, the refrigerant in the second heat transfer loop 7 absorbs the heat stored in the heat storage device 5 and transfers the heat to the indoor heat exchanger 3, so that the indoor heat exchanger 3 can maintain a high temperature state, thereby achieving sterilization inside the air conditioner.

[0055] At present, in the selection of air conditioner functions, more and more users prefer to choose air conditioners with sterilization functions. Previous inventions often operate the heating system, do not run the indoor fan, and add electric heating to make the evaporator reach a high temperature to achieve a sterilization effect. However, the disadvantages of the above-mentioned related technologies are as follows: a. If the fan does not turn, the air will not flow, and the indoor air cannot be fully sterilized; b. Electric heating consumes a lot of electricity and wastes electricity.

[0056] In order to solve the technical defects existing in the above-mentioned related technologies, the present invention provides an air conditioner, which is provided with a heat storage device 5 for storing waste heat of a computer board, so that when the temperature of the indoor heat exchanger 3 does not meet the standard, the pre-stored heat in the heat storage device 5 can be used to heat the indoor heat exchanger 3. In this way, on the one hand, the waste heat generated by the work in the computer board is effectively utilized, and the heat dissipation efficiency of the computer board is improved, thereby improving the energy utilization rate and enhancing the working performance of the computer board; on the other hand, there is no need to set up an additional electric heating device in the air conditioner, but the waste heat in the system is reused, which has a simple structure and low power consumption. In addition, in the sterilization mode, the indoor fan of the air conditioner can still operate normally, so that the indoor heat exchanger 3 and the indoor flowing air can be fully sterilized.

[0057] According to some embodiments of the present invention, the heat storage device 5 is a phase-change heat storage device 5. Specifically, the phase-change heat storage device 5 is a hollow cylinder, the inner side of which is a heat-conducting material, and the outer side is wrapped with a heat-insulating material. The air conditioner of the present invention uses the phase-change heat storage device 5 and the first heat transfer loop 6, does not consume electrical energy, and when the first valve 61 is opened, it can absorb the heat generated by the computer board when it is working, and recycle the heat, so as not to waste electrical energy.

[0058] Of course, the above embodiment is only one of many embodiments of the present invention, and does not constitute a specific limitation on the heat storage device 5 of the present invention. The heat storage device 5 of the present invention may also adopt other heat storage structures, which are not specifically limited here.

[0059] According to some embodiments of the present invention, the first valve 61 is a solenoid valve and the second valve 71 is an electronic expansion valve with adjustable opening.

[0060] In this embodiment, the first valve 61 has only two states, namely, an open state and a closed state; the second valve 71 can adjust its opening degree according to different actual needs. For example, when the heating temperature of the indoor heat exchanger 3 is in different ranges, the required heating heat is also different. At this time, the opening degree of the second valve 71 (also known as the electronic expansion valve) can be adjusted according to the specific heating requirements of the indoor heat exchanger 3, so that the current opening degree of the second valve 71 can match the current heating requirements of the indoor heat exchanger 3.

[0061] According to some embodiments of the present invention, the first heat transfer loop 6 is heat-transferably connected to the power module 8 on the computer board.

[0062] It should be explained that the power module 8 generally includes a motor power module 8 and a compressor 1 power module 8. The power module 8 is integrated in the computer board of the outdoor unit and is the main source of heat generation of the computer board. When the unit is working, the power module 8 can generate up to 75 degrees. It can be seen that the waste heat generated by the power module 8 is relatively large, which can meet the heat storage requirements of the heat storage device 5 and provide sufficient heating heat for the indoor heat exchanger 3.

[0063] For example, the first heat transfer loop 6 is arranged opposite to the computer board to realize a heat exchanger, and the first heat transfer loop 6 flows through the heat storage device 5 to provide heat thereto.

[0064] Furthermore, the heat storage device 5 can also store and reuse the waste heat of other heating modules through other heat transfer circuits. For example, the heat storage device 5 is connected to the compressor 1 for heat transfer through the third heat transfer circuit. At this time, the third heat transfer circuit absorbs the waste heat generated during the operation of the compressor 1 and transfers it to the heat storage device 5, thereby realizing the storage and reuse of the waste heat of the compressor 1, and can improve the working efficiency of the compressor 1 and avoid high-temperature failure of the compressor 1.

[0065] According to some embodiments of the present invention, in the heating mode of the air conditioner, the second heat transfer circuit 7 is connected to the refrigerant pipeline located at the inlet of the indoor heat exchanger 3 .

[0066] In this embodiment, part of the refrigerant pipeline upstream of the inlet of the indoor heat exchanger 3 constitutes a part of the second heat transfer circuit 7. When the second valve 71 is opened, the heat storage device 5 transfers heat to the refrigerant, and the refrigerant flows to part of the refrigerant pipeline upstream of the inlet of the indoor heat exchanger 3 and mixes with the refrigerant in the system, thereby increasing the temperature of the refrigerant entering the indoor heat exchanger 3, thereby ensuring that the indoor heat exchanger 3 is in a high temperature state, thereby realizing the sterilization process inside the air conditioner.

[0067] According to some embodiments of the present invention, an ultraviolet sterilization device is further provided in the air conditioner, and the ultraviolet sterilization device is arranged opposite to the indoor evaporator.

[0068] Among them, the ultraviolet sterilization device can further sterilize and disinfect the inside of the air conditioner and the air flow flowing out of the air conditioner. Taking the ultraviolet sterilization device as an ultraviolet sterilization lamp as an example, when the air conditioner enters the sterilization mode, the ultraviolet sterilization lamp is also turned on. During the period when the ultraviolet sterilization lamp is turned on, its light intensity and other working parameters can be adjusted according to the sterilization needs of the air conditioner, thereby bringing better sterilization effect to the air conditioner, ensuring the purity of indoor air and improving the user experience.

[0069] The control method and control device of the air conditioner proposed in the present invention are described below with reference to the accompanying drawings. Among them, before the embodiment of the present invention is described in detail, the entire application scenario is described first. The control method, control device, electronic device and computer-readable storage medium of the air conditioner in the embodiment of the present invention can be applied to the air conditioner locally, and can also be applied to the cloud platform in the Internet field, or other types of cloud platforms in the Internet field, or can also be applied to third-party devices. Among them, the third-party device may include many different types such as mobile phones, tablet computers, notebooks, car computers and other smart terminals.

[0070] The following description only takes the control method applicable to air conditioners as an example. It should be understood that the control method of the embodiment of the present invention can also be applied to cloud platforms and third-party devices.

[0071] like Figure 2 As shown, a method for controlling an air conditioner according to a second aspect of an embodiment of the present invention includes:

[0072] Step S1, in the heating mode, receiving a signal for controlling the air conditioner to enter the sterilization mode, obtaining the heat storage temperature of the heat storage device 5 and the heating temperature of the indoor heat exchanger 3;

[0073] Step S2, controlling the working state of the first valve 61 and / or the second valve 71 according to the heat storage temperature and / or the heating temperature.

[0074] The specific working principle of the air conditioner control method according to the embodiment of the present invention is the same as the principle of the air conditioner described in the first aspect of the present invention, and the present invention will not be described repeatedly here.

[0075] Further, according to the control method of the air conditioner of the embodiment of the present invention, its specific working process is as follows: first, the controller determines that the air conditioner is currently in the heating mode. When the user instructs the air conditioner to enter the disinfection mode, the controller does not interrupt the heating mode of the air conditioner, but executes the setting program of the sterilization mode based on the heating mode of the air conditioner. Specifically, the heat storage temperature of the heat storage device 5 and the heating temperature of the indoor heat exchanger 3 are first obtained, and the heat storage temperature and the heating temperature are compared. When the heat storage temperature is less than the heating temperature, the first valve 61 is opened. At this time, the waste heat generated by the computer board is transferred to the heat storage device 5 through the first heat transfer loop 6. After a certain period of time, the heat storage temperature of the heat storage device 5 is higher than the heating temperature. At this time, the preset sterilization temperature stored in the air conditioner continues to be obtained. When the heating temperature of the indoor heat exchanger 3 is less than the preset sterilization temperature, the controller further controls the second valve 71 to open. At this time, the heat stored in the heat storage device 5 is transferred to the indoor heat exchanger 3 through the second heat transfer loop 7, so that the indoor heat exchanger 3 maintains a high temperature state, thereby realizing the sterilization process inside the air conditioner.

[0076] In summary, according to the control method of the air conditioner in an embodiment of the present invention, on the basis that the heat storage temperature of the heat storage device 5 is higher than the heating temperature of the indoor heat exchanger 3, the indoor heat exchanger 3 is heated by the heat storage device 5, and the sterilization and disinfection of the interior of the air conditioner can be achieved without the need for an additional electric heating device, and the structure is simple, the power consumption is low, and the energy utilization rate is also high.

[0077] According to some embodiments of the present invention, the step of controlling the working state of the first valve 61 and / or the second valve 71 according to the heat storage temperature and / or the heating temperature specifically includes:

[0078] According to the heat storage temperature being lower than the heating temperature, the first valve 61 is controlled to open.

[0079] It can be understood that when the heat storage temperature is lower than the heating temperature, it means that the heat in the heat storage device 5 is insufficient to provide the indoor heat exchanger 3 with the heat required for sterilization. Therefore, it is necessary to open the first valve 61 and use the heat generated by the computer board to charge the heat storage device 5. After charging for a period of time, if the heat storage temperature is higher than the heating temperature, it means that the heat in the current heat storage device 5 can provide the indoor heat exchanger 3 with the heat required for sterilization. Therefore, the first valve 61 can be closed, or the first valve 61 can be kept in an open state at all times so that the computer board can continuously charge the heat storage device 5.

[0080] In the related art, the factors for determining whether the air conditioner turns on the sterilization mode are relatively simple, that is, the internal coil temperature is used as the determination condition. However, the coil temperature can only represent the temperature in the middle of the evaporator. The above determination method is not comprehensive and the determination is not accurate. If the temperature of the upper or lower part of the evaporator does not meet the requirements, the sterilization will not achieve the expected effect.

[0081] Therefore, in order to solve the technical defects existing in the above-mentioned related art, the heating temperature in the control method of the present invention includes the inlet temperature, coil temperature and outlet temperature of the indoor heat exchanger 3, and the steps of controlling the working state of the first valve 61 and / or the second valve 71 according to the heat storage temperature and / or the heating temperature specifically include:

[0082] When the inlet temperature, coil temperature and outlet temperature are all lower than the heat storage temperature, the working state of the second valve 71 is controlled according to the comparison results between the inlet temperature, coil temperature and outlet temperature and the preset sterilization temperature.

[0083] In this way, compared with the single judgment method in the related art, the control method of the present invention uses multiple factors such as the inlet temperature of the indoor heat exchanger 3, the outlet temperature of the indoor heat exchanger 3, and the coil temperature of the indoor heat exchanger 3 as judgment conditions. The judgment action and judgment structure of the judgment condition are more accurate, which can ensure that the entire temperature of the indoor heat exchanger 3 reaches the temperature required for sterilization.

[0084] Specifically, when the inlet temperature, the coil temperature and the outlet temperature are all lower than the heat storage temperature, the step of controlling the working state of the second valve 71 according to the comparison results between the inlet temperature, the coil temperature and the outlet temperature and the preset sterilization temperature respectively includes:

[0085] When the inlet temperature, coil temperature and outlet temperature are all lower than the thermal storage temperature;

[0086] Determine that the inlet temperature, the coil temperature and the outlet temperature are all lower than the preset sterilization temperature, and control the second valve 71 to be in an open state and at a first opening degree;

[0087] Determine that two of the inlet temperature, the coil temperature, and the outlet temperature are less than the preset sterilization temperature, and control the second valve 71 to be in an open state and at a second opening degree;

[0088] Determine that one of the inlet temperature, the coil temperature, and the outlet temperature is less than the preset sterilization temperature, and control the second valve 71 to be in an open state and at a third opening degree;

[0089] Determine that the inlet temperature, the coil temperature and the outlet temperature are all greater than the preset sterilization temperature, and control the second valve 71 to be in a closed state;

[0090] The first opening is greater than the second opening, and the second opening is greater than the third opening.

[0091] Furthermore, in the heating mode, after receiving a signal for controlling the air conditioner to enter the sterilization mode and obtaining the heat storage temperature of the heat storage device 5 and the heating temperature of the indoor heat exchanger 3, the method further includes:

[0092] When the inlet temperature, coil temperature and outlet temperature are all lower than the preset sterilization temperature, the compressor 1 is controlled to increase the frequency to the first frequency and the indoor fan is turned to low wind;

[0093] When two of the inlet temperature, coil temperature and outlet temperature are lower than the preset sterilization temperature, the compressor 1 is controlled to increase the frequency to the second frequency and the indoor fan is turned to low wind;

[0094] When one of the inlet temperature, coil temperature and outlet temperature is less than the preset sterilization temperature, the compressor 1 is controlled to increase the frequency to the third frequency and the indoor fan is turned to low wind;

[0095] When the inlet temperature, coil temperature and outlet temperature are all greater than the preset sterilization temperature, the indoor fan is controlled to turn to low wind, and the frequency of compressor 1 remains unchanged;

[0096] The first frequency is greater than the second frequency, and the second frequency is greater than the third frequency.

[0097] According to some embodiments of the present invention, the air conditioner control method further includes:

[0098] In the heating mode, a signal is received to control the air conditioner to enter the sterilization mode, and the ultraviolet sterilization device is controlled to turn on;

[0099] Make sure the UV sterilizer is turned on and adjust the working parameters of the UV sterilizer according to the heating temperature.

[0100] In this way, by turning on the ultraviolet sterilization device, the air in the air conditioner and the air flow flowing out to the air outlet can be sterilized for the second time, thereby further improving the sterilization effect of the air conditioner and improving the user experience.

[0101] For example, the ultraviolet sterilization device may be an ultraviolet sterilization lamp, and the above steps of determining that the ultraviolet sterilization device is turned on and adjusting the working parameters of the ultraviolet sterilization device according to the heating temperature specifically include:

[0102] When the inlet temperature, the coil temperature and the outlet temperature are all lower than the preset sterilization temperature, the ultraviolet sterilization lamp is controlled to be turned on at the first light intensity;

[0103] When two of the inlet temperature, the coil temperature and the outlet temperature are lower than the preset sterilization temperature, the ultraviolet sterilization lamp is controlled to be turned on at the second light intensity;

[0104] When one of the inlet temperature, the coil temperature and the outlet temperature is less than the preset sterilization temperature, the ultraviolet sterilization lamp is controlled to be turned on at a third light intensity;

[0105] When the inlet temperature, coil temperature and outlet temperature are all greater than the preset sterilization temperature, the ultraviolet sterilization lamp is controlled to remain off;

[0106] The first light intensity is greater than the second light intensity, and the second light intensity is greater than the third light intensity.

[0107] A specific embodiment of the air conditioner and the control method thereof of the present invention will be described below with reference to the accompanying drawings.

[0108] like Figure 1 and 2 As shown, the first heat transfer loop 6 may be composed of a pipe with a refrigerant passing therethrough and a first valve 61, the pipe passing through the heat storage device 5, and the refrigerant in the first heat transfer loop 6 may absorb the heat generated by the power module 8 to be stored in the heat storage device 5. The first valve 61 may be used to open and close the first heat transfer loop 6, and when the first valve 61 is opened, the first heat transfer loop 6 is opened, and the heat storage device 5 starts to store heat.

[0109] The second heat transfer loop 7 may be composed of a pipe with a refrigerant passing therethrough and a second valve 71, the pipe passing through the heat storage device 5, and the refrigerant in the second heat transfer loop 7 may transfer the heat stored in the power module 8 to the indoor heat exchanger 3. The second valve 71 may be used to open and close the second heat transfer loop 7, and may adjust the temperature of the refrigerant entering the indoor heat exchanger 3. When the second valve 71 is opened, the second heat transfer loop 7 is opened. When the second valve 71 is at different openings, the amount of heat absorbed from the heat storage device 5 will be different. Specifically, the greater the opening of the second valve 71, the more heat is absorbed from the heat storage device 5, and vice versa.

[0110] Assume that the inlet temperature of the indoor heat exchanger 3 is Tin (which can represent the upper temperature of the heat exchanger), the outlet temperature of the indoor heat exchanger 3 is Tou (which can represent the lower temperature of the heat exchanger), and the coil temperature of the indoor heat exchanger 3 is Te (which can represent the middle of the heat exchanger). Set the preset sterilization temperature to T, where T can be 56 degrees. Efficient sterilization can be achieved at this temperature, and T can also be set to its specific size according to demand. Set the frequency of compressor 1 to f, preset f1<f2<f3, the opening range of the electronic expansion valve SV2 (that is, the second valve 71): 0~300, preset pls0<pls1<pls2<pls3, such as: pls0=0, pls1=100, pls2=200, pls3=300. The solenoid valve SV1 (that is, the first valve 61) has only a switch signal, that is, open and close. The solenoid valve SV1 is open as SV1=ON, and the solenoid valve SV1 is closed as SV1=OFF.

[0111] The specific control logic is as follows:

[0112] The air conditioner receives a sterilization signal through a remote controller or a wire controller. The first valve 61 is opened, that is, SV1 = ON, the first heat transfer circuit 6 is turned on, and the refrigerant absorbs the heat of the power module 8 and stores it in the heat storage device 5. At this time, the second valve 71 is closed, that is, SV2 = pls0.

[0113] Furthermore, the air conditioner is switched from the current mode to the heating mode.

[0114] When Tin<T, Tou<T, Te<T, SV2=pls3, the second heat transfer circuit 7 is turned on, and the electronic expansion opening is the maximum, which is 300; the compressor 1 is increased in frequency to f3; the indoor fan turns to low wind.

[0115] When two of Tin, Tou and Te are less than T, SV2=pls2, the second heat transfer loop 7 is turned on, and the electronic expansion opening is 200; the compressor 1 is increased in frequency to f2; the indoor fan turns to low wind.

[0116] When one of Tin, Tou and Te is less than T, SV2=pls1, the second heat transfer loop 7 is turned on, and the electronic expansion opening is 100; the compressor 1 is increased in frequency to f1; the indoor fan turns to low wind.

[0117] When T<Tin, T<Tou, T<Te, SV2=pls0, the opening of the electronic expansion valve is 0, the second heat transfer loop 7 is closed, the frequency of the compressor 1 remains unchanged, and the indoor fan turns to low wind. That is, when the sterilization temperature is set to be low, the heat storage device 5 can be used for sterilization.

[0118] In summary, the present invention can keep the evaporator in a high temperature state and maintain it by controlling the indoor unit fan in a running state through the heat storage device 5, the fan speed, and the compressor 1 frequency, thereby achieving a continuous sterilization effect. Its advantages are as follows:

[0119] (1) During sterilization, the fan is kept running to fully sterilize the indoor heat exchanger 3 and the indoor flowing air.

[0120] (2) The phase-change heat storage device 5 is a hollow cylinder, with a heat-conducting material inside and a heat-insulating material outside. The phase-change heat storage device 5 and the heat exchange circuit do not consume electric energy, but can absorb the heat generated by the power module 8 (the power module 8 generally includes a motor power module 8 and a compressor power module 8. The power module 8 is integrated in the computer board of the outdoor unit and is the main source of heat generation of the computer board. When the unit is working, the heat generated by the power module 8 can reach up to 75 degrees.) when working. The heat is recycled and reused, and electric energy is not wasted.

[0121] (3) More judgment factors: Using the inlet temperature of the indoor heat exchanger 3, the outlet temperature of the indoor heat exchanger 3, and the coil temperature of the indoor heat exchanger 3 as judgment conditions, the judgment is more accurate and can ensure that the entire temperature of the evaporator reaches the sterilization temperature.

[0122] The control device of the air conditioner provided by the present invention is described below. The control device of the air conditioner described below and the control method of the air conditioner described above can be referred to each other.

[0123] like Figure 3 As shown, a control device for an air conditioner according to a third aspect of the present invention includes:

[0124] The acquisition module 110 is used to receive a signal for controlling the air conditioner to enter a sterilization mode in the heating mode, and acquire the heat storage temperature of the heat storage device 5 and the heating temperature of the indoor heat exchanger 3;

[0125] The control module 120 is used to control the working state of the first valve 61 and / or the second valve 71 according to the heat storage temperature and / or the heating temperature.

[0126] The effect of the air conditioner control device according to the embodiment of the present invention is similar to the effect of the air conditioner control method according to the second aspect of the present invention, and will not be described in detail here.

[0127] Figure 4 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 4 As 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 conditioner, including: in the heating mode, receiving a signal for controlling the air conditioner to enter the sterilization mode, obtaining the heat storage temperature of the heat storage device 5 and the heating temperature of the indoor heat exchanger 3; and controlling the working state of the first valve 61 and / or the second valve 71 according to the heat storage temperature and / or the heating temperature.

[0128] 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.

[0129] 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 a method for controlling an air conditioner, including: in a heating mode, receiving a signal for controlling the air conditioner to enter a sterilization mode, obtaining the heat storage temperature of the heat storage device 5 and the heating temperature of the indoor heat exchanger 3; and controlling the working state of the first valve 61 and / or the second valve 71 according to the heat storage temperature and / or the heating temperature.

[0130] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute a method for controlling an air conditioner, including: in a heating mode, receiving a signal for controlling the air conditioner to enter a sterilization mode, obtaining the heat storage temperature of the heat storage device 5 and the heating temperature of the indoor heat exchanger 3; and controlling the working state of the first valve 61 and / or the second valve 71 according to the heat storage temperature and / or the heating temperature.

[0131] 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.

[0132] 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.

[0133] 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 conditioner, characterized in that: include: A compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger connected by a refrigerant pipeline; A heat storage device, a first heat transfer loop and a second heat transfer loop, wherein the heat storage device is heat-transfer connected to a computer board of an outdoor unit of an air conditioner through the first heat transfer loop, and the heat storage device is heat-transfer connected to the indoor heat exchanger through the second heat transfer loop; The first heat transfer loop is provided with a first valve, and the second heat transfer loop is provided with a second valve. In the sterilization mode of the air conditioner, the first valve and the second valve are both in an open state.

2. The air conditioner according to claim 1, characterized in that: The first valve is a solenoid valve and the second valve is an electronic expansion valve with adjustable opening.

3. The air conditioner according to claim 2, characterized in that: The first heat transfer loop is heat-transfer connected to the power module on the computer board.

4. The air conditioner according to claim 2, characterized in that: In the heating mode of the air conditioner, the second heat transfer circuit is connected to the refrigerant pipeline located at the inlet of the indoor heat exchanger.

5. The air conditioner according to any one of claims 1 to 4, characterized in that: The air conditioner is also provided with an ultraviolet sterilization device, and the ultraviolet sterilization device is arranged opposite to the indoor evaporator.

6. A method for controlling an air conditioner according to any one of claims 1 to 5, characterized in that: include: In the heating mode, a signal for controlling the air conditioner to enter a sterilization mode is received, and a heat storage temperature of the heat storage device and a heating temperature of the indoor heat exchanger are obtained; The working state of the first valve and / or the second valve is controlled according to the heat storage temperature and / or the heating temperature.

7. The air conditioner control method according to claim 6, characterized in that: The step of controlling the working state of the first valve and / or the second valve according to the heat storage temperature and / or the heating temperature specifically includes: According to the heat storage temperature being lower than the heating temperature, the first valve is controlled to be opened.

8. The air conditioner control method according to claim 6, characterized in that: The heating temperature includes the inlet temperature, coil temperature and outlet temperature of the indoor heat exchanger; Then the step of controlling the working state of the first valve and / or the second valve according to the heat storage temperature and / or the heating temperature specifically includes: When the inlet temperature, the coil temperature and the outlet temperature are all lower than the heat storage temperature, the working state of the second valve is controlled according to the comparison results between the inlet temperature, the coil temperature and the outlet temperature and the preset sterilization temperature respectively.

9. The air conditioner control method according to claim 8, characterized in that: The step of controlling the working state of the second valve according to the comparison results between the inlet temperature, the coil temperature and the outlet temperature and the preset sterilization temperature respectively when the inlet temperature, the coil temperature and the outlet temperature are all lower than the heat storage temperature specifically includes: When the inlet temperature, the coil temperature and the outlet temperature are all lower than the thermal storage temperature; Determining that the inlet temperature, the coil temperature, and the outlet temperature are all lower than the preset sterilization temperature, and controlling the second valve to be in an open state and at a first opening degree; Determining that two of the inlet temperature, the coil temperature, and the outlet temperature are less than the preset sterilization temperature, and controlling the second valve to be in an open state and at a second opening degree; Determining that one of the inlet temperature, the coil temperature, and the outlet temperature is less than the preset sterilization temperature, and controlling the second valve to be in an open state and at a third opening degree; Determining that the inlet temperature, the coil temperature, and the outlet temperature are all greater than the preset sterilization temperature, and controlling the second valve to be in a closed state; The first opening is greater than the second opening, and the second opening is greater than the third opening.

10. The air conditioner control method according to claim 8, characterized in that: After receiving a signal for controlling the air conditioner to enter a sterilization mode in the heating mode and obtaining the heat storage temperature of the heat storage device and the heating temperature of the indoor heat exchanger, the method further includes: When the inlet temperature, the coil temperature and the outlet temperature are all lower than the preset sterilization temperature, the compressor is controlled to increase the frequency to the first frequency and the indoor fan is controlled to turn to low wind; When two of the inlet temperature, the coil temperature and the outlet temperature are less than the preset sterilization temperature, the compressor is controlled to increase the frequency to a second frequency and the indoor fan is controlled to turn to a low wind; When one of the inlet temperature, the coil temperature and the outlet temperature is less than the preset sterilization temperature, the compressor is controlled to increase the frequency to a third frequency and the indoor fan is controlled to turn to a low wind; When the inlet temperature, the coil temperature and the outlet temperature are all greater than the preset sterilization temperature, the indoor fan is controlled to turn to low wind, and the compressor frequency remains unchanged; The first frequency is greater than the second frequency, and the second frequency is greater than the third frequency.

11. The air conditioner control method according to any one of claims 6 to 10, characterized in that: Also includes: In the heating mode, a signal for controlling the air conditioner to enter a sterilization mode is received, and the ultraviolet sterilization device is controlled to turn on; It is determined that the ultraviolet sterilization device is turned on, and the working parameters of the ultraviolet sterilization device are adjusted according to the heating temperature.

12. A control device for an air conditioner according to any one of claims 1 to 5, characterized in that: include: An acquisition module is used to, in the heating mode, receive a signal for controlling the air conditioner to enter a sterilization mode, and acquire the heat storage temperature of the heat storage device and the heating temperature of the indoor heat exchanger; A control module is used to control the working state of the first valve and / or the second valve according to the heat storage temperature and / or the heating temperature.

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