Air conditioner control method and device, air conditioner, storage medium and program product

Abstract

The invention discloses an air conditioner control method and device, an air conditioner, a storage medium and a computer program product, and the method comprises the steps that when the air conditioner operates in a refrigeration mode or a dehumidification mode, after the indoor environment temperature reaches the set temperature, if it is determined that the peculiar smell prevention function is started, the air conditioner operates in the refrigeration mode or the dehumidification mode; if yes, the air gear of an inner fan, the angle of an air deflector and the operation frequency of a compressor are controlled according to the pipe temperature of the indoor heat exchanger and the indoor environment temperature. According to the scheme, after the temperature point is reached, the compressor does not stop to reduce the generation of peculiar smell, the air gear of the inner fan is controlled to prevent the indoor temperature from being reduced in the peculiar smell prevention process, the angle of the air deflector is controlled to prevent a user from feeling the residual peculiar smell, and the indoor comfort in the peculiar smell prevention process is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and specifically relates to a control method and device for an air conditioner, an air conditioner, a storage medium and a computer program product. Background Art

[0002] When the air conditioner switches from cooling mode to air supply mode, an odor often occurs, and the odor does not disappear after a period of time. Cleaning the inside of the air conditioner cannot eliminate the odor. The reason for the odor is that after low-temperature cooling operation, a large amount of condensed water will accumulate on the surface of the hydrophilic aluminum foil of the evaporator. When the indoor ambient temperature reaches the set temperature, the outdoor unit stops working and the indoor unit switches to air supply mode. The condensed water on the evaporator continues to evaporate and diffuse into the air. If the hydrophilic aluminum foil has an odor, the condensed water will bring the odor into the air during the evaporation process.

[0003] In order to solve the problem of odor during air conditioning, the relevant solution is to turn on the internal fan after the compressor has been turned on for a period of time, in order to hang water on the evaporator; some solutions are to lower the set temperature of the air conditioner, thereby extending the cooling operation time of the air conditioner or even not stopping the air conditioner to ensure that the evaporator hangs water; and some solutions are to increase the lower limit of the compressor frequency during the cooling process to ensure that the evaporator hangs water. The above solutions have seriously affected comfort due to the adjustment of the cooling operation strategy of the air conditioner and the over-adjustment of the set temperature to prevent odor.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The object of the present invention is to provide an air conditioner control method, device, air conditioner, storage medium and computer program product to solve the problem in related schemes that the air conditioner seriously affects the comfort during the deodorization process, so as to reduce the generation of odor by not stopping the compressor after reaching the temperature point, control the wind gear of the internal fan to avoid the indoor temperature from decreasing during the deodorization process, control the angle of the air guide plate to avoid the user from feeling the residual odor, thereby improving the indoor comfort during the deodorization process and ensuring a better user experience.

[0006] The present invention provides a control method for an air conditioner, the air conditioner comprising an indoor fan, an air guide plate, a compressor, and an indoor heat exchanger; the air conditioner has an anti-odor function; the anti-odor function is used to prevent the indoor unit from generating odor; the method comprises: when the air conditioner operates in a cooling mode or a dehumidification mode, obtaining the indoor ambient temperature and the pipe temperature of the indoor heat exchanger; after the indoor ambient temperature reaches a set temperature, determining whether to turn on the anti-odor function; if it is determined to turn on the anti-odor function, controlling the wind gear of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the pipe temperature of the indoor heat exchanger and the indoor ambient temperature; if it is determined not to turn on the anti-odor function, controlling the compressor to stop.

[0007] In some embodiments, the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature, including: controlling the angle of the air guide plate to a preset angle, the preset angle being an angle at which the air from the air conditioner does not blow on people; controlling the wind speed of the indoor fan according to the indoor ambient temperature; and controlling the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger.

[0008] In some embodiments, controlling the wind speed of the indoor fan according to the indoor ambient temperature includes: lowering the wind speed of the indoor fan by one level; determining the temperature change rate of the indoor ambient temperature; if the temperature change rate of the indoor ambient temperature is greater than a preset temperature change rate, lowering the wind speed of the indoor fan by one level; if the wind speed of the indoor fan is already at the lowest level before lowering the wind speed of the indoor fan, controlling the indoor fan to stop rotating; if the temperature change rate of the indoor ambient temperature is less than or equal to the preset temperature change rate, maintaining the state of the indoor fan unchanged.

[0009] In some embodiments, controlling the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger includes: determining the relationship between the tube temperature of the indoor heat exchanger and a preset first temperature threshold; if the tube temperature of the indoor heat exchanger is greater than or equal to the preset first temperature threshold, maintaining the state of the compressor unchanged; if the tube temperature of the indoor heat exchanger is less than the preset first temperature threshold, reducing the operating frequency of the compressor; then determining the relationship between the tube temperature of the indoor heat exchanger and a preset second temperature threshold; the preset second temperature threshold < the preset first temperature threshold; if the tube temperature of the indoor heat exchanger is greater than or equal to the preset second temperature threshold, maintaining the state of the compressor unchanged; if the tube temperature of the indoor heat exchanger is less than the preset second temperature threshold, reducing the operating frequency of the compressor.

[0010] In some embodiments, the air conditioner also includes an external fan; the method also includes: when the tube temperature of the indoor heat exchanger is lower than a preset second temperature threshold, if the operating frequency of the compressor is a preset minimum frequency and the external fan stops rotating, the compressor is controlled to stop.

[0011] Matching the above method, the present invention provides a control device for an air conditioner on the other hand, the air conditioner includes an indoor fan, an air guide plate, a compressor, and an indoor heat exchanger; the air conditioner has an anti-odor function; the anti-odor function is used to prevent the indoor unit from generating odor; the device includes: an acquisition unit, configured to acquire the indoor ambient temperature and the pipe temperature of the indoor heat exchanger when the air conditioner operates in a cooling mode or a dehumidification mode; a control unit, configured to determine whether to turn on the anti-odor function after the indoor ambient temperature reaches a set temperature; the control unit is further configured to control the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the pipe temperature of the indoor heat exchanger and the indoor ambient temperature if it is determined to turn on the anti-odor function; the control unit is further configured to control the compressor to stop if it is determined not to turn on the anti-odor function.

[0012] In some embodiments, the control unit controls the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature, including: controlling the angle of the air guide plate to a preset angle, the preset angle being an angle at which the air from the air conditioner does not blow on people; controlling the wind speed of the indoor fan according to the indoor ambient temperature; and controlling the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger.

[0013] In some embodiments, the control unit controls the wind speed of the indoor fan according to the indoor ambient temperature, including: lowering the wind speed of the indoor fan by one level; judging the temperature change rate of the indoor ambient temperature; if the temperature change rate of the indoor ambient temperature is greater than a preset temperature change rate, lowering the wind speed of the indoor fan by one level; if the wind speed of the indoor fan is already at the lowest level before lowering the wind speed of the indoor fan, controlling the indoor fan to stop rotating; if the temperature change rate of the indoor ambient temperature is less than or equal to the preset temperature change rate, keeping the state of the indoor fan unchanged.

[0014] In some embodiments, the control unit controls the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger, including: judging the relationship between the tube temperature of the indoor heat exchanger and a preset first temperature threshold; if the tube temperature of the indoor heat exchanger is greater than or equal to the preset first temperature threshold, keeping the state of the compressor unchanged; if the tube temperature of the indoor heat exchanger is less than the preset first temperature threshold, reducing the operating frequency of the compressor; then judging the relationship between the tube temperature of the indoor heat exchanger and a preset second temperature threshold; the preset second temperature threshold < the preset first temperature threshold; if the tube temperature of the indoor heat exchanger is greater than or equal to the preset second temperature threshold, keeping the state of the compressor unchanged; if the tube temperature of the indoor heat exchanger is less than the preset second temperature threshold, reducing the operating frequency of the compressor.

[0015] In some embodiments, the air conditioner also includes an external fan; the control unit is also configured to control the compressor to stop when the tube temperature of the indoor heat exchanger is lower than a preset second temperature threshold, if the operating frequency of the compressor is a preset minimum frequency and the external fan stops rotating.

[0016] Matching the above device, the present invention provides an air conditioner on another aspect, including: the control device of the air conditioner mentioned above.

[0017] In accordance with the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned air conditioning control method.

[0018] In accordance with the above method, the present invention provides a computer program product on another aspect, wherein the computer program product includes a computer program, and when the computer program product is processed and executed, the steps of the above air conditioner control method are implemented.

[0019] According to the solution of the present invention, when the air conditioner is running in cooling mode or dehumidification mode, after the indoor ambient temperature reaches the set temperature, if it is determined to turn on the anti-odor function, the windshield of the internal fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the pipe temperature of the indoor heat exchanger and the indoor ambient temperature. Thus, the compressor does not stop after reaching the temperature point to reduce the generation of odor, the windshield of the internal fan is controlled to avoid the indoor temperature from dropping during the anti-odor process, and the angle of the air guide plate is controlled to avoid the user from feeling the residual odor, thereby improving the indoor comfort during the anti-odor process and ensuring a better user experience.

[0020] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling an air conditioner of the present invention;

[0023] Figure 2 A schematic structural diagram of an embodiment of a control device for an air conditioner of the present invention;

[0024] Figure 3 FIG. 4 is a flow chart of another embodiment of the air conditioner control method of the present invention.

[0025] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0026] 102 - acquisition unit; 104 - control unit. DETAILED DESCRIPTION

[0027] 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 specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only 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 making creative work are within the scope of protection of the present invention.

[0028] According to an embodiment of the present invention, a control method for an air conditioner is provided, wherein the air conditioner comprises an indoor fan, an air guide plate, a compressor, and an indoor heat exchanger; the air conditioner has an anti-odor function; the anti-odor function is used to prevent the indoor unit from generating odor. Figure 1 The flowchart of an embodiment of the method of the present invention is shown in FIG. The air conditioner control method may include: steps S110 to S140.

[0029] In step S110, when the air conditioner operates in a cooling mode or a dehumidification mode, the indoor ambient temperature and the tube temperature of the indoor heat exchanger are obtained.

[0030] In cooling mode and dehumidification mode, the tube temperature of the indoor heat exchanger is low. When the tube temperature of the indoor heat exchanger is lower than the dew point temperature, water starts to hang on the indoor heat exchanger.

[0031] At step S120, after the indoor ambient temperature reaches the set temperature, it is determined whether to turn on the anti-odor function.

[0032] When the indoor ambient temperature drops to the set temperature, the outdoor unit will usually shut down and the indoor unit will switch to air supply mode. At this time, the water film on the indoor heat exchanger evaporates and brings odor into the room. The source of the odor is the hydrophilic aluminum foil on the indoor heat exchanger, but it does not produce odor in all cases. Therefore, when the temperature point is reached, the user can choose whether to turn on the anti-odor function. If the user feels that the air outlet of the air conditioner has an odor, the anti-odor function can be turned on to remove the odor; if the user does not feel the odor, the anti-odor function can be turned off, and the air conditioner will operate according to the control logic of stopping when the temperature point is reached.

[0033] At step S130, if it is determined to turn on the anti-odor function, the wind gear of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature.

[0034] After the user turns on the anti-odor function, the air conditioner adjusts its operating status in real time according to the indoor heat exchanger tube temperature and the indoor ambient temperature, reducing the generation of odor and preventing users from feeling the odor while ensuring that it does not affect indoor comfort.

[0035] In some embodiments, in step S130, the specific process of controlling the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature includes: steps S210 to S230.

[0036] Step S210, controlling the angle of the air guide plate to be a preset angle, where the preset angle is an angle at which the air from the air conditioner does not blow on people.

[0037] Under the anti-odor function, although the odor produced can be reduced, there may still be a small amount of odor, so the air guide plate is adjusted to an angle that does not blow on people and maintained to prevent users from smelling the odor.

[0038] Step S220, controlling the wind speed of the indoor fan according to the indoor ambient temperature.

[0039] Since the indoor ambient temperature has reached the set temperature, the cooling output of the air conditioner needs to be reduced during the anti-odor process to prevent the indoor ambient temperature from further decreasing and affecting indoor comfort.

[0040] In some implementations, in step S220, the specific process of controlling the wind speed of the indoor fan according to the indoor ambient temperature includes: steps S310 to S340.

[0041] Step S310, lowering the wind speed of the internal fan by one level.

[0042] When adjusting the wind speed of the internal fan, first lower the wind speed of the internal fan to the anti-odor wind speed based on the wind speed of the cooling mode or dehumidification mode. The speed corresponding to the anti-odor wind speed is lower than the normal speed. For example, the normal speed is as low as 450r, and the fan speed of the anti-odor wind speed is 300r. At the same time, multiple gears can be set, such as 100r, 200r, and 300r. Then dynamically adjust the wind speed of the internal fan according to the indoor ambient temperature.

[0043] Step S320, determining the magnitude of the temperature change rate of the indoor ambient temperature.

[0044] Step S330, if the temperature change rate of the indoor ambient temperature is greater than the preset temperature change rate, the wind speed of the indoor fan is lowered by one level; if the wind speed of the indoor fan is already at the lowest level before lowering the wind speed of the indoor fan, the indoor fan is controlled to stop rotating.

[0045] The temperature change rate of the indoor ambient temperature is used to reflect whether the indoor ambient temperature continues to decrease. The result of subtracting the indoor ambient temperature after a period of time from the current indoor ambient temperature is divided by the interval time, which is the temperature change rate of the indoor ambient temperature. When the temperature change rate of the indoor ambient temperature is greater than the preset temperature change rate, it is considered that the indoor ambient temperature continues to decrease, and the air conditioner outputs too much cold air to the room, affecting the indoor comfort. At this time, the wind speed of the indoor fan is lowered to reduce the heat exchange efficiency between the indoor air and the indoor heat exchanger, and reduce the output of cold air. If the temperature change rate of the indoor ambient temperature is greater than the preset temperature change rate, and the wind speed of the indoor fan has been reduced to the lowest wind speed, the indoor fan is controlled to stop rotating. At this time, no cold air is output to the room, and the indoor temperature begins to rise.

[0046] Optionally, when the indoor fan stops rotating, if the indoor ambient temperature rises back to the set temperature, the indoor fan is turned on and operates according to the anti-odor wind speed setting.

[0047] Step S340: If the temperature change rate of the indoor ambient temperature is less than or equal to the preset temperature change rate, the state of the indoor fan is kept unchanged.

[0048] If the indoor ambient temperature does not decrease during odor prevention, it will be detected that the temperature change rate of the indoor ambient temperature is less than or equal to the preset temperature change rate. At this time, the state of the indoor fan remains unchanged, that is, the indoor fan continues to run at the current wind speed, or continues to stop.

[0049] During the anti-odor process, the wind speed of the internal fan is controlled according to the indoor ambient temperature to adjust the cooling output of the air conditioner, so that the indoor ambient temperature is maintained at around the set temperature to ensure the comfort of the indoor environment.

[0050] Step S230: controlling the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger.

[0051] After turning on the anti-odor function, the operating frequency of the compressor remains unchanged, that is, the operating frequency during cooling or dehumidification is maintained. Then, in order to prevent the indoor heat exchanger from freezing, the operating frequency of the compressor is dynamically adjusted according to the indoor heat exchanger tube temperature, thereby reducing the evaporation of the water film on the indoor heat exchanger and reducing the generation of odor while ensuring that the indoor heat exchanger does not freeze.

[0052] In some implementations, in step S230, controlling the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger includes: steps S410 to S450.

[0053] Step S410, determining the relationship between the tube temperature of the indoor heat exchanger and a preset first temperature threshold.

[0054] Step S420: If the tube temperature of the indoor heat exchanger is greater than or equal to a preset first temperature threshold, the state of the compressor is kept unchanged.

[0055] After reaching the temperature point and turning on the anti-odor function, the compressor will not stop and will continue to run at the frequency of cooling or dehumidification. Since the windshield of the indoor fan is lowered at this time, the cooling capacity at the indoor heat exchanger continues to increase, and the pipe temperature of the indoor heat exchanger continues to decrease. When the pipe temperature of the indoor heat exchanger is lower than 0°C, there is a risk of freezing, and the indoor machine will produce obvious noise. Therefore, it is necessary to avoid the pipe temperature of the indoor heat exchanger from dropping too much in advance. The preset first temperature threshold is the advance temperature to prevent freezing, which can be set to 5°C. When the pipe temperature of the indoor heat exchanger is ≥5°C, there is no need to prevent freezing in advance, and the compressor continues to run at the current frequency. Anti-freezing treatment begins when the pipe temperature of the indoor heat exchanger is <5°C.

[0056] Step S430, if the tube temperature of the indoor heat exchanger is less than the preset first temperature threshold, the operating frequency of the compressor is reduced; then the relationship between the tube temperature of the indoor heat exchanger and the preset second temperature threshold is determined; the preset second temperature threshold is less than the preset first temperature threshold.

[0057] Step S440: If the tube temperature of the indoor heat exchanger is greater than or equal to a preset second temperature threshold, the state of the compressor is kept unchanged.

[0058] Step S450: if the tube temperature of the indoor heat exchanger is lower than a preset second temperature threshold, the operating frequency of the compressor is reduced.

[0059] When the pipe temperature of the indoor heat exchanger is less than 5°C, the operating frequency of the compressor is first reduced to reduce the accumulated cold at the indoor heat exchanger. Then, it is determined whether the pipe temperature of the indoor heat exchanger has dropped to the preset second temperature threshold, which can be set to 2°C. When the pipe temperature of the indoor heat exchanger is ≥2°C, the operating frequency of the compressor remains unchanged; when the pipe temperature of the indoor heat exchanger is less than 2°C, the operating frequency of the compressor continues to be reduced until it is reduced to the lowest frequency. Since there is water hanging on the indoor heat exchanger and the speed of the internal fan is extremely low or even stops, if the pipe temperature of the indoor heat exchanger is less than 2°C, that is, the pipe temperature of the indoor heat exchanger is close to the freezing temperature of 0°C, the purpose of reducing the operating frequency of the compressor is to make the pipe temperature of the indoor heat exchanger ≥2°C.

[0060] In some embodiments, the air conditioner further comprises an external fan. In order to increase the tube temperature of the indoor heat exchanger, the temperature of the refrigerant flowing into the indoor heat exchanger may be increased by reducing the condensation efficiency, and the manner of reducing the condensation efficiency includes reducing the rotation speed of the external fan. When the tube temperature of the indoor heat exchanger continues to decrease, the rotation speed of the external fan is continuously reduced until the external fan stops rotating.

[0061] In some embodiments, the process of controlling the compressor to shut down is also included, specifically including: when the tube temperature of the indoor heat exchanger is less than a preset second temperature threshold, if the operating frequency of the compressor is a preset minimum frequency and the outdoor fan stops rotating, the compressor is controlled to shut down.

[0062] When the tube temperature of the indoor heat exchanger is ≥2℃, the operating frequency of the compressor is at the lowest frequency, and the outdoor fan stops rotating, the compressor is controlled to stop. At this time, the indoor unit is equivalent to being in the air supply mode. As the indoor fan rotates, the cold air at the indoor heat exchanger is continuously dissipated into the air, increasing the tube temperature of the indoor heat exchanger.

[0063] Optionally, when the tube temperature of the indoor heat exchanger rises to 2°C, the compressor and the outdoor fan are turned on.

[0064] In step S140, if it is determined that the anti-odor function is not to be turned on, the compressor is controlled to stop.

[0065] After the user chooses not to turn on the anti-odor function, the air conditioner operates according to the control logic of shutting down when the temperature point is reached. The status of the indoor fan and air guide plate remain unchanged, and the outdoor unit stops running until the indoor ambient temperature rises and then restarts to cool or dehumidify.

[0066] This solution reduces the generation of odor by controlling the operating frequency of the compressor when the air conditioner produces odor, and prevents the indoor heat exchanger tube from being too cold and freezing. At the same time, it ensures the comfort of the indoor environment during the odor prevention process by controlling the windshield of the internal fan, and prevents the indoor temperature from dropping due to the compressor not stopping. Controlling the angle of the air guide plate can prevent users from feeling any residual odor, thereby improving user experience.

[0067] Figure 3 FIG. 1 is a flow chart of another embodiment of the air conditioner control method of the present invention. Figure 3 As shown, the method includes:

[0068] Step 1: When the air conditioner is in cooling mode or dehumidification mode, determine whether the indoor temperature reaches the set temperature point. If the indoor temperature does not reach the set temperature point, the air conditioner continues to operate normally. If the indoor temperature reaches the set temperature point, if the user does not turn on the anti-odor function, then execute step 2; if the user turns on the anti-odor function, then execute step 3.

[0069] Step 2: Control the state of the indoor fan and the air guide plate to remain unchanged, the compressor frequency continues to decrease and eventually stops, and the compressor is restarted after the indoor temperature rises.

[0070] Step 3: Adjust the air guide plate to an angle that does not blow on people and maintain it; adjust the speed of the indoor fan to the anti-odor speed or stop it; the compressor does not stop, and adjusts the operating frequency of the compressor according to the pipe temperature of the indoor heat exchanger to make the pipe temperature of the indoor heat exchanger ≥ 2°C. Restart the compressor after the indoor temperature rises.

[0071] By adopting the technical solution of this embodiment, when the air conditioner is running in cooling mode or dehumidification mode, when the indoor ambient temperature reaches the set temperature, if it is determined to turn on the anti-odor function, the windshield of the internal fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature. Thus, the compressor does not stop after reaching the temperature point to reduce the generation of odor, the windshield of the internal fan is controlled to avoid the indoor temperature from dropping during the anti-odor process, and the angle of the air guide plate is controlled to avoid the user from feeling the residual odor, thereby improving the indoor comfort during the anti-odor process and ensuring a better user experience.

[0072] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for an air conditioner is also provided. The air conditioner comprises an indoor fan, an air guide plate, a compressor, and an indoor heat exchanger; the air conditioner has an anti-odor function; the anti-odor function is used to prevent the indoor unit from generating odor. Figure 2 The schematic diagram of the structure of an embodiment of the device of the present invention is shown. The control device of the air conditioner may include: an acquisition unit 102 and a control unit 104.

[0073] The acquisition unit 102 is configured to acquire the indoor ambient temperature and the tube temperature of the indoor heat exchanger when the air conditioner operates in a cooling mode or a dehumidification mode.

[0074] In cooling mode and dehumidification mode, the tube temperature of the indoor heat exchanger is low. When the tube temperature of the indoor heat exchanger is lower than the dew point temperature, water starts to hang on the indoor heat exchanger.

[0075] The control unit 104 is configured to determine whether to turn on the anti-odor function after the indoor ambient temperature reaches a set temperature.

[0076] When the indoor ambient temperature drops to the set temperature, the outdoor unit will usually shut down and the indoor unit will switch to air supply mode. At this time, the water film on the indoor heat exchanger evaporates and brings odor into the room. The source of the odor is the hydrophilic aluminum foil on the indoor heat exchanger, but it does not produce odor in all cases. Therefore, when the temperature point is reached, the user can choose whether to turn on the anti-odor function. If the user feels that the air outlet of the air conditioner has an odor, the anti-odor function can be turned on to remove the odor; if the user does not feel the odor, the anti-odor function can be turned off, and the air conditioner will operate according to the control logic of stopping when the temperature point is reached.

[0077] The control unit 104 is further configured to control the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature if it is determined to turn on the anti-odor function.

[0078] After the user turns on the anti-odor function, the air conditioner adjusts its operating status in real time according to the indoor heat exchanger tube temperature and the indoor ambient temperature, reducing the generation of odor and preventing users from feeling the odor while ensuring that it does not affect indoor comfort.

[0079] In some embodiments, the control unit 104 controls the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature, including:

[0080] The control unit 104 is specifically configured to control the angle of the air guide plate to be a preset angle, and the preset angle is an angle at which the air outlet of the air conditioner does not blow on people.

[0081] Under the anti-odor function, although the odor produced can be reduced, there may still be a small amount of odor, so the air guide plate is adjusted to an angle that does not blow on people and maintained to prevent users from smelling the odor.

[0082] The control unit 104 is specifically configured to control the wind speed of the indoor fan according to the indoor ambient temperature.

[0083] Since the indoor ambient temperature has reached the set temperature, the cooling output of the air conditioner needs to be reduced during the anti-odor process to prevent the indoor ambient temperature from further decreasing and affecting indoor comfort.

[0084] In some implementations, the control unit 104 controls the wind speed of the indoor fan according to the indoor ambient temperature, including:

[0085] The control unit 104 is specifically configured to reduce the wind speed of the internal fan by one level.

[0086] When adjusting the wind speed of the internal fan, first lower the wind speed of the internal fan to the anti-odor wind speed based on the wind speed of the cooling mode or dehumidification mode. The speed corresponding to the anti-odor wind speed is lower than the normal speed. For example, the normal speed is as low as 450r, and the fan speed of the anti-odor wind speed is 300r. At the same time, multiple gears can be set, such as 100r, 200r, and 300r. Then dynamically adjust the wind speed of the internal fan according to the indoor ambient temperature.

[0087] The control unit 104 is specifically configured to determine the magnitude of the temperature change rate of the indoor ambient temperature.

[0088] The control unit 104 is specifically configured to lower the wind speed of the indoor fan by one level if the temperature change rate of the indoor ambient temperature is greater than a preset temperature change rate; if the wind speed of the indoor fan is already at the lowest level before lowering the wind speed of the indoor fan, control the indoor fan to stop rotating.

[0089] The temperature change rate of the indoor ambient temperature is used to reflect whether the indoor ambient temperature continues to decrease. The result of subtracting the indoor ambient temperature after a period of time from the current indoor ambient temperature is divided by the interval time, which is the temperature change rate of the indoor ambient temperature. When the temperature change rate of the indoor ambient temperature is greater than the preset temperature change rate, it is considered that the indoor ambient temperature continues to decrease, and the air conditioner outputs too much cold air to the room, affecting the indoor comfort. At this time, the wind speed of the indoor fan is lowered to reduce the heat exchange efficiency between the indoor air and the indoor heat exchanger, and reduce the output of cold air. If the temperature change rate of the indoor ambient temperature is greater than the preset temperature change rate, and the wind speed of the indoor fan has been reduced to the lowest wind speed, the indoor fan is controlled to stop rotating. At this time, no cold air is output to the room, and the indoor temperature begins to rise.

[0090] Optionally, when the indoor fan stops rotating, if the indoor ambient temperature rises back to the set temperature, the indoor fan is turned on and operates according to the anti-odor wind speed setting.

[0091] The control unit 104 is specifically configured to keep the state of the indoor fan unchanged if the temperature change rate of the indoor ambient temperature is less than or equal to a preset temperature change rate.

[0092] If the indoor ambient temperature does not decrease during odor prevention, it will be detected that the temperature change rate of the indoor ambient temperature is less than or equal to the preset temperature change rate. At this time, the state of the indoor fan remains unchanged, that is, the indoor fan continues to run at the current wind speed, or continues to stop.

[0093] During the anti-odor process, the wind speed of the internal fan is controlled according to the indoor ambient temperature to adjust the cooling output of the air conditioner, so that the indoor ambient temperature is maintained at around the set temperature to ensure the comfort of the indoor environment.

[0094] The control unit 104 is specifically configured to control the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger.

[0095] After turning on the anti-odor function, the operating frequency of the compressor remains unchanged, that is, the operating frequency during cooling or dehumidification is maintained. Then, in order to prevent the indoor heat exchanger from freezing, the operating frequency of the compressor is dynamically adjusted according to the indoor heat exchanger tube temperature, thereby reducing the evaporation of the water film on the indoor heat exchanger and reducing the generation of odor while ensuring that the indoor heat exchanger does not freeze.

[0096] In some implementations, the control unit 104 controls the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger, including:

[0097] The control unit 104 is specifically configured to determine the magnitude relationship between the tube temperature of the indoor heat exchanger and a preset first temperature threshold.

[0098] The control unit 104 is specifically configured to keep the state of the compressor unchanged if the tube temperature of the indoor heat exchanger is greater than or equal to a preset first temperature threshold.

[0099] After reaching the temperature point and turning on the anti-odor function, the compressor will not stop and will continue to run at the frequency of cooling or dehumidification. Since the windshield of the indoor fan is lowered at this time, the cooling capacity at the indoor heat exchanger continues to increase, and the pipe temperature of the indoor heat exchanger continues to decrease. When the pipe temperature of the indoor heat exchanger is lower than 0°C, there is a risk of freezing, and the indoor machine will produce obvious noise. Therefore, it is necessary to avoid the pipe temperature of the indoor heat exchanger from dropping too much in advance. The preset first temperature threshold is the advance temperature to prevent freezing, which can be set to 5°C. When the pipe temperature of the indoor heat exchanger is ≥5°C, there is no need to prevent freezing in advance, and the compressor continues to run at the current frequency. Anti-freezing treatment begins when the pipe temperature of the indoor heat exchanger is <5°C.

[0100] The control unit 104 is specifically configured to reduce the operating frequency of the compressor if the tube temperature of the indoor heat exchanger is less than a preset first temperature threshold; then determine the size relationship between the tube temperature of the indoor heat exchanger and a preset second temperature threshold; the preset second temperature threshold is less than the preset first temperature threshold.

[0101] The control unit 104 is specifically configured to keep the state of the compressor unchanged if the tube temperature of the indoor heat exchanger is greater than or equal to a preset second temperature threshold.

[0102] The control unit 104 is specifically configured to reduce the operating frequency of the compressor if the tube temperature of the indoor heat exchanger is less than a preset second temperature threshold.

[0103] When the pipe temperature of the indoor heat exchanger is less than 5°C, the operating frequency of the compressor is first reduced to reduce the accumulated cold at the indoor heat exchanger. Then, it is determined whether the pipe temperature of the indoor heat exchanger has dropped to the preset second temperature threshold, which can be set to 2°C. When the pipe temperature of the indoor heat exchanger is ≥2°C, the operating frequency of the compressor remains unchanged; when the pipe temperature of the indoor heat exchanger is less than 2°C, the operating frequency of the compressor continues to be reduced until it is reduced to the lowest frequency. Since there is water hanging on the indoor heat exchanger and the speed of the internal fan is extremely low or even stops, if the pipe temperature of the indoor heat exchanger is less than 2°C, that is, the pipe temperature of the indoor heat exchanger is close to the freezing temperature of 0°C, the purpose of reducing the operating frequency of the compressor is to make the pipe temperature of the indoor heat exchanger ≥2°C.

[0104] In some embodiments, the air conditioner further comprises an external fan. In order to increase the tube temperature of the indoor heat exchanger, the temperature of the refrigerant flowing into the indoor heat exchanger may be increased by reducing the condensation efficiency, and the manner of reducing the condensation efficiency includes reducing the rotation speed of the external fan. When the tube temperature of the indoor heat exchanger continues to decrease, the rotation speed of the external fan is continuously reduced until the external fan stops rotating.

[0105] In some embodiments, the control unit 104 is further configured to: when the tube temperature of the indoor heat exchanger is less than a preset second temperature threshold, if the operating frequency of the compressor is a preset minimum frequency and the outdoor fan stops rotating, control the compressor to stop.

[0106] When the tube temperature of the indoor heat exchanger is ≥2℃, the operating frequency of the compressor is at the lowest frequency, and the outdoor fan stops rotating, the compressor is controlled to stop. At this time, the indoor unit is equivalent to being in the air supply mode. As the indoor fan rotates, the cold air at the indoor heat exchanger is continuously dissipated into the air, increasing the tube temperature of the indoor heat exchanger.

[0107] Optionally, when the tube temperature of the indoor heat exchanger rises to 2°C, the compressor and the outdoor fan are turned on.

[0108] The control unit 104 is further configured to control the compressor to stop if it is determined that the anti-odor function is not to be turned on.

[0109] After the user chooses not to turn on the anti-odor function, the air conditioner operates according to the control logic of shutting down when the temperature point is reached. The status of the indoor fan and air guide plate remain unchanged, and the outdoor unit stops running until the indoor ambient temperature rises and then restarts to cool or dehumidify.

[0110] This solution reduces the generation of odor by controlling the operating frequency of the compressor when the air conditioner produces odor, and prevents the indoor heat exchanger tube from being too cold and freezing. At the same time, it ensures the comfort of the indoor environment during the odor prevention process by controlling the windshield of the internal fan, and prevents the indoor temperature from dropping due to the compressor not stopping. Controlling the angle of the air guide plate can prevent users from feeling any residual odor, thereby improving user experience.

[0111] Figure 3 FIG. 1 is a flow chart of another embodiment of the air conditioner control method of the present invention. Figure 3 As shown, the method includes:

[0112] Step 1: When the air conditioner is in cooling mode or dehumidification mode, determine whether the indoor temperature reaches the set temperature point. If the indoor temperature does not reach the set temperature point, the air conditioner continues to operate normally. If the indoor temperature reaches the set temperature point, if the user does not turn on the anti-odor function, then execute step 2; if the user turns on the anti-odor function, then execute step 3.

[0113] Step 2: Control the state of the indoor fan and the air guide plate to remain unchanged, the compressor frequency continues to decrease and eventually stops, and the compressor is restarted after the indoor temperature rises.

[0114] Step 3: Adjust the air guide plate to an angle that does not blow on people and maintain it; adjust the speed of the indoor fan to the anti-odor speed or stop it; the compressor does not stop, and adjusts the operating frequency of the compressor according to the pipe temperature of the indoor heat exchanger to make the pipe temperature of the indoor heat exchanger ≥ 2°C. Restart the compressor after the indoor temperature rises.

[0115] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0116] According to the technical solution of the present invention, when the air conditioner is running in cooling mode or dehumidification mode, after the indoor ambient temperature reaches the set temperature, if it is determined to turn on the anti-odor function, the windshield of the internal fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature. Thus, the compressor does not stop after reaching the temperature point to reduce the generation of odor, the windshield of the internal fan is controlled to avoid the indoor temperature from dropping during the anti-odor process, and the angle of the air guide plate is controlled to avoid the user from feeling the residual odor, thereby improving the indoor comfort during the anti-odor process and ensuring a better user experience.

[0117] According to an embodiment of the present invention, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner may include: the control device of the air conditioner described above.

[0118] Since the processing and functions implemented by the air conditioner of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0119] According to the technical solution of the present invention, when the air conditioner is running in cooling mode or dehumidification mode, after the indoor ambient temperature reaches the set temperature, if it is determined to turn on the anti-odor function, the windshield of the internal fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature. Thus, the compressor does not stop after reaching the temperature point to reduce the generation of odor, the windshield of the internal fan is controlled to avoid the indoor temperature from dropping during the anti-odor process, and the angle of the air guide plate is controlled to avoid the user from feeling the residual odor, thereby improving the indoor comfort during the anti-odor process and ensuring a better user experience.

[0120] According to an embodiment of the present invention, a storage medium corresponding to the air conditioner control method is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the air conditioner control method described above.

[0121] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0122] According to the technical solution of the present invention, when the air conditioner is running in cooling mode or dehumidification mode, after the indoor ambient temperature reaches the set temperature, if it is determined to turn on the anti-odor function, the windshield of the internal fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature. Thus, the compressor does not stop after reaching the temperature point to reduce the generation of odor, the windshield of the internal fan is controlled to avoid the indoor temperature from dropping during the anti-odor process, and the angle of the air guide plate is controlled to avoid the user from feeling the residual odor, thereby improving the indoor comfort during the anti-odor process and ensuring a better user experience.

[0123] According to an embodiment of the present invention, a computer program product corresponding to the air conditioner control method is also provided, wherein the computer program product comprises a computer program, and when the computer program product is processed and executed, the steps of the air conditioner control method are implemented.

[0124] Since the processing and functions implemented by the computer program product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0125] According to the technical solution of the present invention, when the air conditioner is running in cooling mode or dehumidification mode, after the indoor ambient temperature reaches the set temperature, if it is determined to turn on the anti-odor function, the windshield of the internal fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature. Thus, the compressor does not stop after reaching the temperature point to reduce the generation of odor, the windshield of the internal fan is controlled to avoid the indoor temperature from dropping during the anti-odor process, and the angle of the air guide plate is controlled to avoid the user from feeling the residual odor, thereby improving the indoor comfort during the anti-odor process and ensuring a better user experience.

[0126] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0127] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises an indoor fan, an air guide plate, a compressor, and an indoor heat exchanger; The air conditioner has an anti-odor function; the anti-odor function is used to prevent the indoor unit from generating odor; The method comprises: When the air conditioner is operated in a cooling mode or a dehumidification mode, obtaining the indoor ambient temperature and the tube temperature of the indoor heat exchanger; After the indoor ambient temperature reaches a set temperature, determining whether to turn on the anti-odor function; If it is determined to turn on the anti-odor function, the wind gear of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor are controlled according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature; If it is determined not to turn on the anti-odor function, the compressor is controlled to stop.

2. The air conditioner control method according to claim 1, characterized in that: Controlling the windshield of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature, including: Controlling the angle of the air guide plate to be a preset angle, where the preset angle is an angle at which the air from the air conditioner does not blow on people; Controlling the wind speed of the internal fan according to the indoor ambient temperature; The operating frequency of the compressor is controlled according to the tube temperature of the indoor heat exchanger.

3. The air conditioner control method according to claim 2, characterized in that: Controlling the wind speed of the internal fan according to the indoor ambient temperature includes: Lowering the wind speed of the internal fan by one level; Determine the magnitude of the temperature change rate of the indoor ambient temperature; If the temperature change rate of the indoor ambient temperature is greater than the preset temperature change rate, the wind speed of the indoor fan is lowered by one level; if the wind speed of the indoor fan is already at the lowest wind speed before the wind speed of the indoor fan is lowered, the indoor fan is controlled to stop rotating; If the temperature change rate of the indoor ambient temperature is less than or equal to the preset temperature change rate, the state of the indoor fan is kept unchanged.

4. The air conditioner control method according to claim 2, characterized in that: Controlling the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger includes: Determine the relationship between the tube temperature of the indoor heat exchanger and a preset first temperature threshold; If the tube temperature of the indoor heat exchanger is greater than or equal to a preset first temperature threshold, the state of the compressor is kept unchanged; If the tube temperature of the indoor heat exchanger is less than a preset first temperature threshold, the operating frequency of the compressor is reduced; then the relationship between the tube temperature of the indoor heat exchanger and a preset second temperature threshold is determined; the preset second temperature threshold is less than the preset first temperature threshold; If the tube temperature of the indoor heat exchanger is greater than or equal to a preset second temperature threshold, the state of the compressor is kept unchanged; If the tube temperature of the indoor heat exchanger is lower than a preset second temperature threshold, the operating frequency of the compressor is reduced.

5. The air conditioner control method according to claim 4, characterized in that: The air conditioner further includes an external fan; the method further includes: When the tube temperature of the indoor heat exchanger is lower than a preset second temperature threshold, if the operating frequency of the compressor is a preset minimum frequency and the outdoor fan stops rotating, the compressor is controlled to stop.

6. A control device for an air conditioner, characterized in that: The air conditioner comprises an indoor fan, an air guide plate, a compressor, and an indoor heat exchanger; The air conditioner has an anti-odor function; the anti-odor function is used to prevent the indoor unit from generating odor; The device comprises: an acquisition unit, configured to acquire the indoor ambient temperature and the tube temperature of the indoor heat exchanger when the air conditioner operates in a cooling mode or a dehumidification mode; A control unit, configured to determine whether to turn on the anti-odor function after the indoor ambient temperature reaches a set temperature; The control unit is further configured to control the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature if it is determined to turn on the anti-odor function; The control unit is further configured to control the compressor to stop if it is determined that the anti-odor function is not to be turned on.

7. The air conditioner control device according to claim 6, characterized in that: The control unit controls the wind speed of the indoor fan, the angle of the air guide plate, and the operating frequency of the compressor according to the tube temperature of the indoor heat exchanger and the indoor ambient temperature, including: Controlling the angle of the air guide plate to be a preset angle, where the preset angle is an angle at which the air from the air conditioner does not blow on people; Controlling the wind speed of the internal fan according to the indoor ambient temperature; The operating frequency of the compressor is controlled according to the tube temperature of the indoor heat exchanger.

8. An air conditioner, characterized in that: include: The air conditioner control device as claimed in claim 6 or 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 5.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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