Air conditioner sterilization control method, operation control device, and readable storage medium

Abstract

The application discloses a kind of air conditioner's degerming control method, operating control device, air conditioner and computer readable storage medium, air conditioner includes refrigerant circulation loop, air duct circuit, ozone generator being arranged in air duct circuit and UV lamp being irradiated to ozone generator, refrigerant circulation loop includes with the heat exchange of air duct circuit indoor heat exchanger, air duct circuit is provided with for generating the airflow of flowing through indoor heat exchanger inside fan, method includes: when receiving degerming instruction, control ozone generator and UV lamp open, obtain dew point temperature, indoor heat exchanger's coil temperature and air conditioner's operating mode;According to operating mode, the operating state of refrigerant circulation loop is adjusted, to reduce coil temperature;When coil temperature is less than or equal to dew point temperature, control the speed of inside fan drops to first speed and keeps first duration;Control refrigerant circulation loop switches to heating state, and keep second duration.Can quickly strengthen sterilization effect, with strong sterilization capacity.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a sterilization control method, operation control device, air conditioner, and computer-readable storage medium for an air conditioner. Background Technology

[0002] Currently, air conditioners equipped with sterilization functions are gradually appearing on the market, providing a good sterilization effect during periods of frequent respiratory illnesses, and are especially suitable for public places such as hospitals. However, existing air conditioner products are mainly those with fixed sterilization capabilities, resulting in slow sterilization effects that cannot meet users' needs for rapid sterilization in a short period of time. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a sterilization control method, operation control device, air conditioner and computer-readable storage medium for an air conditioner, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0004] In a first aspect, embodiments of the present invention provide a sterilization control method for an air conditioner, the air conditioner including a refrigerant circulation loop, an air duct loop, an ozone generator disposed in the air duct loop, and a UV lamp irradiating the ozone generator, the refrigerant circulation loop including an indoor heat exchanger that exchanges heat with the air duct loop, the air duct loop being provided with an indoor fan for generating airflow through the indoor heat exchanger, the method including: When a sterilization command is received, the ozone generator and the UV lamp are turned on to obtain the dew point temperature, the coil temperature of the indoor heat exchanger and the operating mode of the air conditioner. The operating status of the refrigerant circulation loop is adjusted according to the operating mode to reduce the coil temperature; When the temperature of the coil is less than or equal to the dew point temperature, the speed of the internal fan is controlled to decrease to a first speed and maintained for a first duration; Control the refrigerant circulation loop to switch to heating mode and maintain it for a second duration.

[0005] The sterilization control method for air conditioners provided by the embodiments of the present invention has at least the following beneficial effects: By setting an ozone generator and a UV lamp, after the air conditioner receives a sterilization command, it turns on the ozone generator and the UV lamp. The ozone generated by the ozone generator is separated into oxygen and elemental oxygen ions under the irradiation of the UV lamp. The elemental oxygen ions can react with the water vapor in the air duct circuit to generate OH free radicals with disinfection capabilities. Furthermore, by adjusting the operating state of the refrigerant circulation circuit to reduce the coil temperature of the indoor heat exchanger, when the coil temperature is less than or equal to the dew point temperature, the speed of the indoor fan is reduced so that the indoor heat exchanger can condense more condensate. Then, the refrigerant circulation circuit is switched to the heating state, so that the temperature of the indoor heat exchanger rises, evaporating the condensate to form more water vapor, which reacts with the elemental oxygen ions to generate a large number of OH free radicals, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0006] According to some embodiments of the present invention, the sterilization control method further includes a compressor, a four-way valve, and an outdoor heat exchanger in the refrigerant circulation loop; the four-way valve is connected to the compressor, the outdoor heat exchanger, and the indoor heat exchanger respectively; the operating mode includes a cooling mode and a heating mode. Adjusting the operating state of the refrigerant circulation loop according to the operating mode includes: When the air conditioner is operating in cooling mode, the operating frequency of the compressor is increased; When the air conditioner is running in heating mode, the four-way valve is switched to connect the compressor's exhaust port to the outdoor heat exchanger.

[0007] According to some embodiments of the present invention, the sterilization control method wherein the first rotational speed is the product of the rotational speed of the internal fan in the cooling mode or the rotational speed in the heating mode and a first coefficient, wherein the value of the first coefficient ranges from 0.2 to 0.1; and the value of the first duration ranges from 30s to 10s.

[0008] According to some embodiments of the present invention, the method for controlling the refrigerant circulation loop to switch to the heating state includes: controlling the four-way valve to switch to a state that connects the compressor's exhaust port to the indoor heat exchanger.

[0009] According to some embodiments of the present invention, in a sterilization control method, when the air conditioner is operating in cooling mode, the refrigerant circulation loop switches to heating mode and remains in this state for a second duration, the method further includes: The four-way valve is controlled to switch to the state of connecting the compressor's exhaust port with the outdoor heat exchanger, and the speed of the indoor fan is controlled to increase to a second speed and maintain it for a third duration.

[0010] According to some embodiments of the present invention, the sterilization control method is provided in which the second rotational speed is the product of the rotational speed of the internal fan in the cooling mode and the second coefficient, the value range of the second coefficient is 0.6±0.1; the value range of the second duration is 60s±10s; and the value range of the third duration is 5min±2min.

[0011] According to some embodiments of the present invention, the sterilization control method, when the air conditioner is operating in heating mode, further includes controlling the refrigerant circulation loop to switch to heating mode: The speed of the internal fan is increased to the fourth speed.

[0012] According to some embodiments of the present invention, the sterilization control method is wherein the fourth rotation speed is the product of the rotation speed of the internal fan in the heating mode and the third coefficient, wherein the value range of the third coefficient is 0.6±0.1; and the value range of the second duration is 5min±2min.

[0013] The sterilization control method provided in some embodiments of the present invention further includes: When the air conditioner is running in cooling mode and receives a shutdown command, it controls the refrigerant circulation loop to switch to heating mode, controls the speed of the indoor fan to decrease to the fifth speed, controls the ozone generator and the UV lamp to turn on, and maintains this for the fourth duration. The fifth rotational speed is the product of the rotational speed of the internal fan in the cooling mode and the fourth coefficient, wherein the value of the fourth coefficient ranges from 0.6 to 0.1; and the value of the fourth duration ranges from 30 min to 5 min.

[0014] Secondly, embodiments of the present invention provide an operation control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to implement the sterilization control method for an air conditioner as described in the first aspect embodiment above.

[0015] Thirdly, embodiments of the present invention provide an air conditioner including the operation control device described in the second aspect embodiment.

[0016] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the sterilization control method for an air conditioner as described in the third aspect embodiment.

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of an air conditioner provided in an embodiment of the present invention; Figure 2 This is a flowchart of the sterilization control method for an air conditioner provided in an embodiment of the present invention; Figure 3 This is a flowchart of a sterilization control method for an air conditioner provided in a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the overall appearance of the indoor unit in the air conditioner provided in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the indoor unit of the air conditioner provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the operation control device provided in an embodiment of the present invention. Detailed Implementation

[0020] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0021] In the description of the embodiments of the present invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, while "above," "below," "within," etc. are understood to include the number itself. "At least one" refers to one or more, and "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or multiple items. If "first," "second," etc., are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0022] It should be noted that the terms "setting," "installing," and "connecting" in the embodiments of this invention should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in the embodiments of this invention in conjunction with the specific content of the technical solution. For example, the term "connection" can be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it can be a direct connection or an indirect connection through an intermediate medium.

[0023] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Currently, air conditioners equipped with sterilization functions are gradually appearing on the market, providing a good sterilization effect during periods of frequent respiratory illnesses, and are especially suitable for public places such as hospitals. However, existing air conditioner products are mainly those with fixed sterilization capabilities, resulting in slow sterilization effects that cannot meet users' needs for rapid sterilization in a short period of time.

[0025] Based on this, embodiments of the present invention provide a sterilization control method, an operation control device, an air conditioner, and a computer-readable storage medium for an air conditioner, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0026] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of an air conditioner provided in an embodiment of the present invention. (Refer to...) Figure 1 The air conditioner includes a refrigerant circulation loop 100, an air duct loop 200, an ozone generator 300 disposed in the air duct loop 200, and a UV lamp 400 irradiating the ozone generator 300. The refrigerant circulation loop 100 includes an indoor heat exchanger 110 that exchanges heat with the air duct loop 200, and the air duct loop 200 is provided with an indoor fan 210 for generating airflow through the indoor heat exchanger 110. It is understood that the refrigerant circulation loop 100 also includes a compressor 120, a four-way valve 130, an outdoor heat exchanger 140, and a throttling device 150. The four-way valve 130 is connected to the exhaust port of the compressor 120, the return port of the compressor 120, the outdoor heat exchanger 140, and the indoor heat exchanger 110, respectively. The throttling device 150 is disposed between the indoor heat exchanger 110 and the outdoor heat exchanger 140, and the throttling device 150 can be an electronic expansion valve or a capillary tube, etc. Components such as the compressor 120, four-way valve 130, outdoor heat exchanger 140, and throttling device 150 in the refrigerant circulation loop 100 can be located on the outdoor side. Components such as the indoor heat exchanger 110, indoor fan 210 in the duct loop 200, ozone generator 300, and UV lamp 400 in the refrigerant circulation loop 100 can be located on the indoor side. Specifically, in some embodiments, the installation positions of the ozone generator 300 and UV lamp 400 in the indoor unit of the air conditioner can be referenced. Figure 4 and Figure 5 As shown, the ozone generator 300 and the UV lamp 400 are located inside the area enclosed by multiple heat exchange sections of the indoor heat exchanger 110, and the ozone generator 300 and the UV lamp 400 are arranged adjacent to each other so that the UV lamp 400 can irradiate the ozone generator 300 when it is powered on.

[0028] Figure 2 This is a flowchart of the sterilization control method for an air conditioner provided in an embodiment of the present invention. (Refer to...) Figure 2 The sterilization control method for an air conditioner provided in the first aspect of the present invention includes, but is not limited to, steps S210 to S240.

[0029] Step S210: When a sterilization command is received, control the ozone generator 300 and UV lamp 400 to turn on, and obtain the dew point temperature Tn, the coil temperature T2 of the indoor heat exchanger 110 and the operating mode of the air conditioner.

[0030] It is understandable that a sterilization command can be generated by the air conditioner through sensors detecting indoor air parameters and when these air parameters meet preset sterilization conditions. Alternatively, a sterilization command can be generated when the air conditioner has been running continuously for a preset sterilization duration. Furthermore, a sterilization command can be generated by the user by operating buttons on the air conditioner, operating the remote control, or operating an app on a mobile terminal linked to the air conditioner.

[0031] It should be noted that the dew point temperature Tn refers to the temperature at which air reaches saturation under constant water vapor content and air pressure. In this embodiment, the current dew point temperature Tn can be calculated or obtained by measuring the indoor ambient temperature T1, the coil temperature T2 of the indoor heat exchanger 110, and the indoor ambient humidity RH1.

[0032] Step S220: Adjust the operating status of the refrigerant circulation loop 100 according to the operating mode to reduce the coil temperature T2.

[0033] Step S230: When the coil temperature T2 is less than or equal to the dew point temperature Tn, control the speed of the internal fan 210 to decrease to the first speed and maintain it for the first duration.

[0034] Step S240: Control the refrigerant circulation loop 100 to switch to heating mode and maintain it for the second duration.

[0035] According to the sterilization control method of the air conditioner provided in the embodiment of the present invention, by setting an ozone generator 300 and a UV lamp 400, after the air conditioner receives a sterilization command, it turns on the ozone generator 300 and the UV lamp 400. The ozone generated by the ozone generator 300 is separated into oxygen and elemental oxygen ions under the irradiation of the UV lamp 400. The elemental oxygen ions can react with the water vapor in the air duct circuit 200 to generate OH free radicals with disinfection capabilities. In addition, the operating state of the refrigerant circulation circuit 100 is adjusted to reduce the coil temperature T2 of the indoor heat exchanger 110. When the coil temperature T2 is less than or equal to the dew point temperature Tn, the speed of the indoor fan 210 is reduced so that the indoor heat exchanger 110 can condense more condensate. Then, the refrigerant circulation circuit 100 is switched to the heating state, so that the temperature of the indoor heat exchanger 110 rises, evaporating the condensate to form more water vapor, which reacts with the elemental oxygen ions to generate a large number of OH free radicals, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0036] In the sterilization control method provided in some embodiments of the present invention, the operating mode of the air conditioner includes a cooling mode and a heating mode; Step S220, adjusting the operating status of the refrigerant circulation loop 100 according to the operating mode, includes the following two cases: Scenario 1: When the air conditioner is running in cooling mode, increase the operating frequency of the compressor to 120.

[0037] Scenario 2: When the air conditioner is running in heating mode, the four-way valve 130 is switched to open the exhaust port of the compressor 120 and the outdoor heat exchanger 140.

[0038] In this embodiment, before receiving the sterilization command in step S210, the air conditioner may operate in cooling mode as in case one, or in heating mode as in case two. If the air conditioner receives a sterilization command while operating in cooling mode, the operating frequency of the compressor 120 can be increased to lower the coil temperature T2 of the indoor heat exchanger 110, causing the coil temperature T2 to drop to less than or equal to the dew point temperature Tn, thus allowing condensate to form on the indoor heat exchanger 110. If the air conditioner receives a sterilization command while operating in heating mode, the coil temperature T2 of the indoor heat exchanger 110 will be higher. In this case, the four-way valve 130 can be controlled to switch the state of connecting the exhaust port of the compressor 120 to the outdoor heat exchanger 140, that is, to control the refrigerant circulation loop 100 to switch to cooling mode, thereby lowering the coil temperature T2 of the indoor heat exchanger 110 to less than or equal to the dew point temperature Tn, thus allowing condensate to form on the indoor heat exchanger 110.

[0039] In the sterilization control method provided in some embodiments of the present invention, the first rotation speed is the product of the rotation speed of the internal fan 210 in cooling mode or heating mode and the first coefficient, and the value range of the first coefficient is 0.2±0.1; the value range of the first duration is 30s±10s.

[0040] Therefore, in step S230, when the coil temperature T2 of the indoor heat exchanger 110 drops to less than or equal to the dew point temperature Tn, the speed of the indoor fan 210 is controlled to drop to between 0.1 and 0.3 times the speed before receiving the sterilization command, so as to avoid the indoor fan 210 speed being too high and thus failing to condense enough condensate on the indoor heat exchanger 110.

[0041] In the sterilization control method provided in some embodiments of the present invention, the step S240 of controlling the refrigerant circulation loop 100 to switch to the heating state includes: controlling the four-way valve 130 to switch to the state of connecting the exhaust port of the compressor 120 and the indoor heat exchanger 110.

[0042] In this embodiment, the high-temperature refrigerant discharged from the exhaust port of the compressor 120 flows to the indoor heat exchanger 110 after passing through the four-way valve 130, causing the temperature of the indoor heat exchanger 110 to rise. Since condensate has already formed on the indoor heat exchanger 110 in step S230, raising the temperature of the indoor heat exchanger 110 in step S240 can evaporate the condensate to form water vapor, which reacts with elemental oxygen ions to generate a large number of OH free radicals for sterilization.

[0043] In some embodiments of the present invention, the sterilization control method further includes, when the air conditioner is operating in cooling mode, the refrigerant circulation loop 100 switches to heating mode and remains in this state for a second period of time: The four-way valve 130 is switched to connect the exhaust port of the compressor 120 to the outdoor heat exchanger 140, and the speed of the indoor fan 210 is increased to the second speed and maintained for the third duration.

[0044] In this embodiment, when the air conditioner receives a sterilization command while operating in cooling mode, it completes the process. Figure 2 After steps S210 to S240, condensate has been condensed on the indoor heat exchanger 110 and evaporated to form water vapor, which reacts with elemental oxygen ions to complete sterilization. At this time, the four-way valve 130 is switched to open the exhaust port of the compressor 120 and the outdoor heat exchanger 140, that is, the refrigerant circulation loop 100 is switched to the original cooling state, and the speed of the indoor fan 210 is increased from the lower first speed to the second speed as a transition state before switching to the cooling mode before receiving the sterilization command.

[0045] In the sterilization control method provided in some embodiments of the present invention, the second rotation speed is the product of the rotation speed of the internal fan 210 in cooling mode and the second coefficient, the value range of the second coefficient is 0.6±0.1; the value range of the second duration is 60s±10s; and the value range of the third duration is 5min±2min.

[0046] In this embodiment, the second coefficient is greater than the first coefficient and less than 1, which can prevent water vapor from being blown out due to the excessive speed of the indoor fan 210 when the condensate on the indoor heat exchanger 110 has not been completely evaporated. The third duration is relatively long, that is, the duration of the transition state is longer, which can completely dry the condensate on the indoor heat exchanger 110 during this transition stage.

[0047] In some embodiments of the present invention, the sterilization control method, when the air conditioner is operating in heating mode, further includes, in step S240, controlling the refrigerant circulation loop 100 to switch to heating mode: Increase the speed of the internal fan 210 to the fourth speed.

[0048] In this embodiment, in step S240, the rotation speed of the indoor fan 210 is increased from a lower first rotation speed to a fourth rotation speed, which can effectively blow the OH free radicals generated at the indoor heat exchanger 110 into the indoor space for sterilization. At the same time, it can also serve as a transitional state for switching to the heating mode before receiving the sterilization command.

[0049] In the sterilization control method provided in some embodiments of the present invention, the fourth rotation speed is the product of the rotation speed of the internal fan 210 in heating mode and the third coefficient, and the value range of the third coefficient is 0.6±0.1; the value range of the second duration is 5min±2min.

[0050] In this embodiment, the third coefficient is greater than the first coefficient and less than 1, which can prevent water vapor from being blown out due to the excessive speed of the indoor fan 210 when the condensate on the indoor heat exchanger 110 has not been completely evaporated. The second duration is relatively long, that is, the evaporation time of the condensate on the indoor heat exchanger 110 is longer, and the condensate on the indoor heat exchanger 110 can be completely dried during this time.

[0051] In some embodiments of the present invention, the sterilization control method further includes: When the air conditioner is running in cooling mode and receives a shutdown command, it controls the refrigerant circulation loop 100 to switch to heating mode, controls the speed of the indoor fan 210 to decrease to the fifth speed, and controls the ozone generator 300 and UV lamp 400 to turn on and maintain the fourth duration. The fifth speed is the product of the speed of the internal fan 210 in cooling mode and the fourth coefficient, with the fourth coefficient ranging from 0.6 to 0.1; the fourth duration ranges from 30 min to 5 min.

[0052] In this embodiment, since the air conditioner may contain a lot of condensate when it is running in cooling mode, which can easily lead to the growth of bacteria, after receiving the shutdown command, the ozone generator 300 and UV lamp 400 are turned on and the indoor fan 210 is controlled to run at the fifth speed to dry and sterilize the inside of the air conditioner and improve the cleanliness of the inside of the air conditioner.

[0053] Below, in conjunction with Figure 1 and Figure 3 The present invention will provide a detailed description of a sterilization control method for an air conditioner according to a specific embodiment of the present invention.

[0054] Refer to the schematic diagram of the air conditioner Figure 1 As shown, the sterilization control method for air conditioners is as follows: Figure 3 As shown, it includes the following steps: Step S301: The air conditioner is powered on and started; proceed to step S302 or step S313; Step S302: The air conditioner is operating in cooling mode; proceed to step S303; Step S303: The air conditioner receives a sterilization command; proceed to step S304; Step S304: The air conditioner collects the indoor ambient temperature T1, the coil temperature T2 of the indoor heat exchanger 110, and the indoor ambient humidity RH1; proceed to step S305; Step S305: Calculate or look up the current dew point temperature Tn based on the indoor ambient temperature T1, the coil temperature T2 of the indoor heat exchanger 110, and the indoor ambient humidity RH1; then proceed to step S306. Step S306: Determine whether the coil temperature T2 of the indoor heat exchanger 110 is greater than the dew point temperature Tn; if yes, proceed to step S307; otherwise, proceed to step S308. Step S307: Increase the operating frequency of compressor 100 to reduce the coil temperature T2 of indoor heat exchanger 110; jump back to step S306. Step S308: The speed of the indoor fan 210 is adjusted to 0.2LC and maintained for 30s, where LC is the speed of the indoor fan 210 in step S302, which is the speed of the indoor fan 210 in the normal cooling mode; at this time, the indoor heat exchanger 110 can condense water; jump to step S309. Step S309: The four-way valve 130 is switched to the heating state, that is, the four-way valve 130 is switched to the state of connecting the exhaust port of the compressor 120 and the indoor heat exchanger 110, and this state is maintained for 1 minute; at this time, the temperature of the indoor heat exchanger 110 can be increased, thereby evaporating the condensate of the indoor heat exchanger 110 to form water vapor, which reacts with elemental oxygen ions to generate a large number of OH free radicals for sterilization; proceed to step S310; Step S310: The four-way valve 130 is switched to the cooling state, that is, the four-way valve 130 is switched to the state of connecting the exhaust port of the compressor 120 and the outdoor heat exchanger 140. The speed of the indoor fan 210 is adjusted to 0.65LC. At this time, it can avoid the situation where water vapor is blown out due to the excessive speed of the indoor fan 210. Jump to step S311. Step S311: Determine if the duration T of step S310 has reached 5 minutes. If yes, proceed to step S312; otherwise, return to step S311. Step S312: Return to the normal cooling mode before receiving the sterilization command; Step S313: The air conditioner is operating in heating mode; proceed to step S314; Step S314: The air conditioner receives a sterilization command; proceed to step S315; Step S315: The air conditioner collects the indoor ambient temperature T1, the coil temperature T2 of the indoor heat exchanger 110, and the indoor ambient humidity RH1; proceed to step S316. Step S316: Calculate or look up the current dew point temperature Tn based on the indoor ambient temperature T1, the coil temperature T2 of the indoor heat exchanger 110, and the indoor ambient humidity RH1; then proceed to step S317. Step S317: The four-way valve 130 is switched to the cooling state, that is, the four-way valve 130 is switched to the state of connecting the exhaust port of the compressor 120 and the outdoor heat exchanger 140; proceed to step S318; Step S318: Determine whether the coil temperature T2 of the indoor heat exchanger 110 is greater than the dew point temperature Tn; if yes, return to step S318; otherwise, proceed to step S319. Step S319: The speed of the indoor fan 210 is adjusted to 0.2LC and maintained for 30s, where LC is the speed of the indoor fan 210 in step S313, which is the speed of the indoor fan 210 in the normal heating mode; at this time, the indoor heat exchanger 110 can condense water; jump to step S320. Step S320: The four-way valve 130 is switched to the heating state, that is, the four-way valve 130 is switched to the state of connecting the exhaust port of the compressor 120 and the indoor heat exchanger 110; at this time, the temperature of the indoor heat exchanger 110 can be increased, thereby evaporating the condensate of the indoor heat exchanger 110 to form water vapor, which reacts with elemental oxygen ions to generate a large number of OH free radicals for sterilization; the speed of the indoor fan 210 is adjusted to 0.65LC, which can prevent the indoor fan 210 from running too fast and causing water vapor to blow out; jump to step S321; Step S321: Determine if the duration T of step S320 has reached 5 minutes. If yes, proceed to step S322; otherwise, return to step S321. Step S322: Return to the normal heating mode before receiving the sterilization command; Step S323: Power off command received; Proceed to step S324; Step S324: The four-way valve 130 is switched to the heating state, that is, the four-way valve 130 is switched to the state of connecting the exhaust port of the compressor 120 and the indoor heat exchanger 110; proceed to step S325; Step S325: Adjust the speed of the indoor fan 210 to 0.65LC and turn on the ozone generator 300 and UV lamp 400; at this time, the air conditioner itself can be dried and sterilized, improving the cleanliness of the air conditioner; jump to step S326. Step S326: Determine if the duration T of step S325 has reached 30 minutes. If yes, proceed to step S327; otherwise, return to step S326. Step S327: Shut down the machine.

[0055] In this embodiment, after receiving a sterilization command, the air conditioner turns on the ozone generator 300 and the UV lamp 400. The ozone generated by the ozone generator 300 is separated into oxygen and elemental oxygen ions under the irradiation of the UV lamp 400. The elemental oxygen ions can react with the water vapor in the air duct circuit 200 to generate OH free radicals with disinfection capabilities. Furthermore, the operating state of the refrigerant circulation circuit 100 is adjusted to reduce the coil temperature T2 of the indoor heat exchanger 110. When the coil temperature T2 is less than or equal to the dew point temperature Tn, the speed of the indoor fan 210 is reduced so that the indoor heat exchanger 110 can condense more condensate. Then, the refrigerant circulation circuit 100 is switched to the heating state, so that the temperature of the indoor heat exchanger 110 rises, evaporating the condensate to form more water vapor, which reacts with the elemental oxygen ions to generate a large number of OH free radicals, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0056] See also Figure 6A second aspect of the present invention provides an operation control device 600, including a memory 610, a processor 620, and a computer program stored in the memory 610 and executable on the processor 620. The processor 620 executes the program to implement the sterilization control method of the air conditioner as described in the first aspect of the present invention, for example, by executing... Figure 2 Method steps S210 to S240, or execution Figure 3 The method steps S301 to S327.

[0057] According to the operation control device 400 provided in this embodiment of the invention, after the air conditioner receives a sterilization command, it turns on the ozone generator 300 and the UV lamp 400. The ozone generated by the ozone generator 300 is separated into oxygen and elemental oxygen ions under the irradiation of the UV lamp 400. The elemental oxygen ions can react with the water vapor in the air duct circuit 200 to generate OH free radicals with disinfection capabilities. In addition, the operating state of the refrigerant circulation circuit 100 is adjusted to reduce the coil temperature T2 of the indoor heat exchanger 110. When the coil temperature T2 is less than or equal to the dew point temperature Tn, the speed of the indoor fan 210 is reduced so that the indoor heat exchanger 110 can condense more condensate. Then, the refrigerant circulation circuit 100 is switched to the heating state, so that the temperature of the indoor heat exchanger 110 rises, evaporating the condensate to form more water vapor, which reacts with the elemental oxygen ions to generate a large number of OH free radicals, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0058] Furthermore, a third aspect of the present invention provides an air conditioner including the operation control device 400 of the second aspect embodiment. Specifically, the air conditioner also includes an indoor unit and an outdoor unit, and the mounting positions of the ozone generator 300 and the UV lamp 400 in the indoor unit of the air conditioner can be referred to... Figure 4 and Figure 5 As shown, the ozone generator 300 and the UV lamp 400 are located inside the area enclosed by multiple heat exchange sections of the indoor heat exchanger 110, and the ozone generator 300 and the UV lamp 400 are arranged adjacent to each other so that the UV lamp 400 can irradiate the ozone generator 300 when it is powered on.

[0059] According to the air conditioner provided in this embodiment of the invention, by setting an ozone generator 300 and a UV lamp 400, after receiving a sterilization command, the air conditioner turns on the ozone generator 300 and the UV lamp 400. The ozone generated by the ozone generator 300 is separated into oxygen and elemental oxygen ions under the irradiation of the UV lamp 400. The elemental oxygen ions can react with the water vapor in the air duct circuit 200 to generate OH free radicals with disinfection capabilities. Furthermore, by adjusting the operating state of the refrigerant circulation circuit 100, the coil temperature T2 of the indoor heat exchanger 110 is reduced. When the coil temperature T2 is less than or equal to the dew point temperature Tn, the speed of the indoor fan 210 is reduced so that the indoor heat exchanger 110 can condense more condensate. Then, the refrigerant circulation circuit 100 is switched to the heating state, so that the temperature of the indoor heat exchanger 110 rises, evaporating the condensate to form more water vapor, which reacts with the elemental oxygen ions to generate a large number of OH free radicals, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0060] Furthermore, a fourth aspect of the present invention provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform a sterilization control method for an air conditioner as described in the third aspect embodiment, for example, executing... Figure 2 Method steps S210 to S240, or execution Figure 3 The method steps S301 to S327.

[0061] According to the computer-readable storage medium provided in the embodiments of the present invention, after receiving a sterilization command, the air conditioner turns on the ozone generator 300 and the UV lamp 400. The ozone generated by the ozone generator 300 is separated into oxygen and elemental oxygen ions under the irradiation of the UV lamp 400. The elemental oxygen ions can react with the water vapor in the air duct circuit 200 to generate OH free radicals with disinfection capabilities. Furthermore, the operating state of the refrigerant circulation circuit 100 is adjusted to reduce the coil temperature T2 of the indoor heat exchanger 110. When the coil temperature T2 is less than or equal to the dew point temperature Tn, the speed of the indoor fan 210 is reduced so that the indoor heat exchanger 110 can condense more condensate. Then, the refrigerant circulation circuit 100 is switched to the heating state, so that the temperature of the indoor heat exchanger 110 rises, evaporating the condensate to form more water vapor, which reacts with the elemental oxygen ions to generate a large number of OH free radicals, which can quickly enhance the sterilization effect and has a strong sterilization capability.

[0062] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for sterilization control in an air conditioner, characterized in that, The air conditioner includes a refrigerant circulation loop, an air duct loop, an ozone generator disposed in the air duct loop, and a UV lamp irradiating the ozone generator. The refrigerant circulation loop includes an indoor heat exchanger that exchanges heat with the air duct loop. The air duct loop is equipped with an indoor fan for generating airflow through the indoor heat exchanger. The method includes: When a sterilization command is received, the ozone generator and the UV lamp are turned on to obtain the dew point temperature, the coil temperature of the indoor heat exchanger and the operating mode of the air conditioner. The operating status of the refrigerant circulation loop is adjusted according to the operating mode to reduce the coil temperature; When the temperature of the coil is less than or equal to the dew point temperature, the speed of the internal fan is controlled to decrease to a first speed and maintained for a first duration; Control the refrigerant circulation loop to switch to heating mode and maintain it for a second duration.

2. The sterilization control method according to claim 1, characterized in that, The refrigerant circulation loop also includes a compressor, a four-way valve, and an outdoor heat exchanger, wherein the four-way valve is connected to the compressor, the outdoor heat exchanger, and the indoor heat exchanger respectively; The operating modes include cooling mode and heating mode; Adjusting the operating state of the refrigerant circulation loop according to the operating mode includes: When the air conditioner is operating in cooling mode, the operating frequency of the compressor is increased; When the air conditioner is running in heating mode, the four-way valve is switched to connect the compressor's exhaust port to the outdoor heat exchanger.

3. The sterilization control method according to claim 2, characterized in that, The first rotational speed is the product of the rotational speed of the internal fan in the cooling mode or the rotational speed in the heating mode and the first coefficient, the first coefficient being 0.2±0.1; the first duration being 30s±10s.

4. The sterilization control method according to claim 2, characterized in that, The control of switching the refrigerant circulation loop to the heating state includes: controlling the four-way valve to switch to the state of connecting the compressor's exhaust port to the indoor heat exchanger.

5. The sterilization control method according to claim 4, characterized in that, When the air conditioner is operating in cooling mode, the refrigerant circulation loop switches to heating mode and remains in this state for a second duration, the method further includes: The four-way valve is controlled to switch to the state of connecting the compressor's exhaust port with the outdoor heat exchanger, and the speed of the indoor fan is controlled to increase to a second speed and maintain it for a third duration.

6. The sterilization control method according to claim 5, characterized in that, The second rotational speed is the product of the rotational speed of the internal fan in the cooling mode and the second coefficient, the value of which ranges from 0.6 to 0.1; the value of the second duration ranges from 60s to 10s; and the value of the third duration ranges from 5min to 2min.

7. The sterilization control method according to claim 4, characterized in that, When the air conditioner is operating in heating mode, the step of controlling the refrigerant circulation loop to switch to heating mode further includes: The speed of the internal fan is increased to the fourth speed.

8. The sterilization control method according to claim 7, characterized in that, The fourth rotational speed is the product of the rotational speed of the internal fan in the heating mode and the third coefficient, the value of which ranges from 0.6 to 0.1; the value of the second duration ranges from 5 min to 2 min.

9. The sterilization control method according to claim 1, characterized in that, Also includes: When the air conditioner is running in cooling mode and receives a shutdown command, it controls the refrigerant circulation loop to switch to heating mode, controls the speed of the indoor fan to decrease to the fifth speed, controls the ozone generator and the UV lamp to turn on, and maintains this for the fourth duration. The fifth rotational speed is the product of the rotational speed of the internal fan in the cooling mode and the fourth coefficient, wherein the value of the fourth coefficient ranges from 0.6 to 0.1; and the value of the fourth duration ranges from 30 min to 5 min.

10. An operation control device, characterized in that, The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the sterilization control method for an air conditioner as described in any one of claims 1 to 9.

11. An air conditioner, characterized in that, Includes the operation control device as described in claim 10.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the sterilization control method for an air conditioner as described in any one of claims 1 to 9.

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