WO2021128655A1 - 空调器及其控制方法 - Google Patents

空调器及其控制方法 Download PDF

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Publication number
WO2021128655A1
WO2021128655A1 PCT/CN2020/084378 CN2020084378W WO2021128655A1 WO 2021128655 A1 WO2021128655 A1 WO 2021128655A1 CN 2020084378 W CN2020084378 W CN 2020084378W WO 2021128655 A1 WO2021128655 A1 WO 2021128655A1
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WO
WIPO (PCT)
Prior art keywords
air
humidity
air duct
fan assembly
indoor
Prior art date
Application number
PCT/CN2020/084378
Other languages
English (en)
French (fr)
Inventor
朱训智
王元
Original Assignee
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Publication of WO2021128655A1 publication Critical patent/WO2021128655A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Definitions

  • the invention relates to the technical field of air conditioners, and specifically provides an air conditioner and a control method thereof.
  • air conditioners have been widely used in people's daily life.
  • the refrigerant circulates in the circulation pipeline.
  • the refrigerant evaporates and absorbs heat in the evaporator of the indoor unit of the air conditioner.
  • the air flows through the outer surface of the evaporator and exchanges heat with the evaporator to become a low-temperature airflow, which reduces the ambient temperature in the room and improves the user’s Comfort.
  • a water receiving pan is arranged under the evaporator to receive the condensed water generated on the surface of the evaporator to prevent the condensed water from falling on the electrical components and causing the circuit to short-circuit and malfunction.
  • the drain pan is in contact with the bottom plate of the indoor unit housing. Due to the low temperature of condensed water, a large amount of condensed water accumulates in the water receiving tray, which makes the bottom of the indoor unit shell cooler. The water vapor in the indoor air encounters the lower surface of the indoor unit shell and is prone to condensation and condensation. The dripping on the floor causes the floor to be dirty or even damaged.
  • the present invention provides a control method of an air conditioner.
  • the air conditioner includes an air conditioner indoor unit, the air conditioner indoor unit includes a shell, the shell has an air outlet and the shell is provided with a heat exchanger and a water receiving pan, the water receiving pan and the top plate of the shell A first air duct connected to the air outlet is formed in between, the heat exchanger is located in the first air duct, and a first air duct connected to the air outlet is formed between the water receiving pan and the bottom plate of the housing.
  • the housing is also provided with a fan assembly, which can continuously supply air to the first air duct so that the airflow exchanges heat with the heat exchanger, and is sending air to the first air duct.
  • the air is selectively supplied to the second air duct; the control method includes the following steps: making the fan assembly supply air to the first air duct; obtaining the humidity of the indoor air in the cooling mode; The fan assembly selectively blows air to the second air duct according to the humidity of the indoor air.
  • the step of "the fan assembly selectively sending air to the second air duct according to the humidity of the indoor air” includes: when the humidity of the indoor air is greater than a preset humidity threshold , Controlling the fan assembly to send air to the second air duct.
  • the step of "the fan assembly selectively sending air to the second air duct according to the humidity of the indoor air” specifically includes: the length of time that the humidity of the indoor air is greater than a preset humidity threshold When the preset time period is exceeded, the fan assembly is controlled to send air to the second air duct.
  • the step of "controlling the fan assembly to supply air to the second air duct" further includes: according to the difference between the humidity of the indoor air and the preset humidity threshold, making The fan assembly sends air to the second air duct in a set manner, wherein there is a preset mapping relationship between the set manner and the difference.
  • the setting mode is at least related to the flow area of the second air duct.
  • the fan assembly includes a first group of fans and a second group of fans, the first group of fans and the second group of fans each include at least one fan, and the first group of fans Used to continuously blow air to the first air duct, and the second group of fans can selectively blow air to the second air duct.
  • the setting mode is also related to the operating state of the second group of fans.
  • the housing includes a switching mechanism, the switching mechanism includes a base, and the base is provided with a first tuyere, a second tuyere, and a third tuyere.
  • the second air outlets are all aligned with the first air duct
  • the third air outlet is aligned with the second air duct
  • the first group of fans are in communication with the first air outlet
  • the second group of fans In communication with the second tuyere and the third tuyere
  • the switch baffle is slidably arranged on the base body at a position corresponding to the second tuyere and the third tuyere, so that the switch The baffle can block at least a part of the second tuyere and the third tuyere.
  • the step of "selectively supplying air into the second air duct according to the humidity of the indoor air” includes: controlling the indoor air when the humidity of the indoor air is not greater than a preset humidity threshold.
  • the second group of fans sends air to the first air duct.
  • the air conditioner includes an air conditioner indoor unit
  • the air conditioner indoor unit includes a housing
  • the housing has an air outlet
  • the housing is provided with a heat exchanger and a water receiving tray.
  • a first air channel connected to the air outlet is formed between the water pan and the top plate of the shell
  • the heat exchanger is located in the first air channel
  • a second air channel connected to the air outlet is formed between the water pan and the bottom plate of the shell
  • the housing is also provided with a fan assembly.
  • the fan assembly can continuously supply air to the first air channel so that the air flow can exchange heat with the heat exchanger, and it can selectively send air to the second air channel during the process of supplying air to the first air channel.
  • the control method includes the following steps: making the fan assembly send air to the first air duct; obtaining the humidity of the indoor air in the cooling mode; and the fan assembly selectively blowing air to the second air duct according to the humidity of the indoor air.
  • the condensation water generated on the surface of the heat exchanger of the indoor unit of the air conditioner falls and collects in the drain pan.
  • the temperature of the bottom plate of the housing will decrease, and condensation will easily occur when the indoor air contacts the lower surface of the bottom plate.
  • the greater the humidity of the indoor air the easier it is to produce condensation water on the lower surface of the bottom plate of the housing.
  • the fan assembly sends air to the first air duct to obtain the humidity of the indoor air, and selectively sends air to the second air duct according to the humidity of the indoor air, thereby avoiding condensation on the bottom plate of the housing.
  • the fan assembly when the fan assembly sends air to the first air duct, the "cold capacity" of the condensed water in the water receiving pan will be transferred to the bottom plate to reduce the temperature of the bottom plate to a certain temperature. If the humidity of the indoor air is greater than the preset humidity Threshold value, the bottom surface of the bottom plate will produce condensed water. At this time, the fan assembly is controlled to send air to the second air duct at the same time.
  • the air flowing in the second air duct separates the water tray from the bottom plate of the housing, and the air flow is flowing at the same time
  • the "cold capacity" conducted by the water receiving pan is quickly discharged to avoid the "cold capacity" of the condensed water in the water receiving pan being transferred to the bottom plate, which will cause the temperature of the bottom plate to be too low and cause condensation on the bottom surface of the bottom plate. It avoids the situation that condensation drips on the floor and causes the floor to be dirty or damaged, which optimizes the user experience; if the humidity of the indoor air is not greater than the preset humidity threshold, the possibility of condensation on the bottom surface of the floor is very small.
  • the fan assembly does not need to send air to the second air duct, and the fan assembly can fully send air into the first air duct, thereby improving the cooling effect of the air conditioner indoor unit.
  • the step of "controlling the fan assembly to supply air to the second air duct” further includes: according to the difference between the humidity of the indoor air and a preset humidity threshold, causing the fan assembly to send air to the second air duct in a set manner.
  • the air duct delivers air, wherein there is a preset mapping relationship between the set method and the difference.
  • the circulation area of the second air duct is set according to the difference between the humidity of the indoor air and the preset humidity threshold.
  • the humidity of the indoor air is greater than the preset humidity threshold and it is necessary to send air to the second air duct to avoid condensation on the lower surface of the bottom plate of the housing, the higher the humidity of the indoor air, the easier the lower surface of the bottom plate of the housing Condensate is produced.
  • the fan assembly sends air to the first air duct and the second air duct at the same time.
  • the second air is set according to the difference between the humidity of the indoor air and the preset system threshold.
  • the flow area of the air duct, the air flow rate of the fan assembly to the second air duct matches the difference between the humidity of the indoor air and the preset system threshold, so that the "cold capacity" transferred from the water tray can be quickly realized. Lead out, to prevent the "cold capacity" of the condensed water in the drain pan from being transferred to the bottom plate to make the temperature of the bottom plate too low, and the remaining air supply capacity of the fan assembly can be used to supply air to the first air duct, ensuring that the indoor unit of the air conditioner The cooling effect.
  • the present invention also provides an air conditioner including a controller for executing the air conditioner control method according to any one of the above technical solutions of the air conditioner control method. It should be noted that the air conditioner indoor unit has all the technical effects of the above-mentioned control method of the air conditioner, which will not be repeated here.
  • Fig. 1 is an exploded schematic structural diagram of a duct type air conditioner indoor unit according to an embodiment of the present invention
  • Figure 2 is a schematic diagram of an assembly of a duct type air conditioner indoor unit according to an embodiment of the present invention
  • Figure 3 is a half-sectional view 1 of the duct type air conditioner indoor unit according to an embodiment of the present invention (the second air duct is in the air intake state);
  • FIG 4 is a second half-sectional view of the duct type air conditioner indoor unit according to an embodiment of the present invention (the second air duct is in a non-intake state);
  • Figure 5 is a flow chart of the control method of the air conditioner of the present invention.
  • Fig. 6 is a logic diagram of the control method of the air conditioner of the present invention.
  • the terms “installation”, “setting”, and “connection” should be understood in a broad sense, for example, it may be a fixed connection or It is a detachable connection or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two components.
  • the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.
  • FIG. 1 is an exploded schematic structural diagram of a duct type air conditioner indoor unit according to an embodiment of the present invention
  • FIG. 2 is an assembly diagram of a duct type air conditioner indoor unit according to an embodiment of the present invention
  • FIG. 3 It is a half sectional view 1 of the duct type air conditioner indoor unit according to an embodiment of the present invention (the second air duct is in the air intake state), and
  • FIG. 4 is a half sectional view of the duct type air conditioner indoor unit according to an embodiment of the present invention 2. (The second air duct is in a non-inlet state).
  • FIG. 5 is a flowchart of the control method of the air conditioner of the present invention
  • FIG. 6 is a logic diagram of the control method of the air conditioner of the present invention.
  • the present invention provides a control method of an air conditioner.
  • the air conditioner includes an air conditioner indoor unit.
  • the indoor unit includes a shell, the shell has an air outlet and a heat exchanger and a water receiving pan are arranged in the shell, a first air duct connected to the air outlet is formed between the water receiving pan and the top plate of the shell, and the heat exchanger Located in the first air duct, a second air duct connected to the air outlet is formed between the water receiving pan and the bottom plate of the housing.
  • a fan assembly is also provided in the housing. The fan assembly can continuously supply air to the first air duct for air flow and exchange.
  • the heat exchanger exchanges heat and selectively blows air to the second air channel during the process of blowing air to the first air channel.
  • the control method of an indoor air conditioner includes the following steps:
  • the air conditioner indoor unit obtains the humidity of the indoor air through a humidity sensor provided thereon, and the humidity sensor is connected to the controller of the air conditioner indoor unit, and the humidity sensor transmits the detected humidity of the indoor air to the controller of the air conditioner indoor unit.
  • the controller controls the humidity sensor to detect the humidity of the indoor air, and the humidity sensor transmits the detected humidity of the indoor air to the controller.
  • the fan assembly selectively sends air to the second air duct according to the humidity of the indoor air. For example, during the process of the fan assembly sending air to the first air duct, the controller determines whether to control the fan assembly to send air to the second air duct according to the humidity of the indoor air sent by the humidity sensor. When the humidity of the indoor air is greater than the preset humidity threshold, the controller controls the fan assembly to send air to the second air duct at the same time.
  • the airflow flowing in the second air duct separates the water tray from the bottom plate of the housing, and the airflow is flowing at the same time
  • the "cold capacity" conducted by the water receiving pan is quickly discharged to avoid the "cold capacity" of the condensed water in the water receiving pan being transferred to the bottom plate, which will cause the temperature of the bottom plate to be too low and cause condensation on the bottom surface of the bottom plate. It avoids the situation that condensate drips on the floor and causes the floor to be dirty or damaged, and the user experience is optimized.
  • the humidity of the indoor air is not greater than the preset humidity threshold, the possibility of condensing water on the bottom surface of the bottom plate is very small.
  • the controller controls the fan assembly to only supply air to the first air duct and not the second air duct.
  • the lower surface of the bottom plate of the housing does not produce condensed water, and the fan assembly only sends air into the first air duct, which relatively increases the air supply volume in the first air duct, and improves the cooling efficiency of the indoor unit of the air conditioner.
  • the fan assembly selectively sends air to the second air duct according to the humidity of the indoor air, which not only avoids the occurrence of condensed water on the floor of the indoor unit of the air conditioner in the cooling mode, but also relatively improves
  • the cooling efficiency of the indoor unit of the air conditioner is improved, and the user experience is optimized.
  • the humidity sensor can make the humidity sensor independently installed in the room, the humidity sensor on the humidifier or the humidity sensor on the smart device worn by the human body, etc.
  • the humidity sensor and the controller of the indoor unit of the air conditioner are connected via Bluetooth, Internet, etc. communication, the controller The humidity of the indoor air is detected by the humidity sensor.
  • the step of "controlling the fan assembly to supply air to the second air duct” further includes: according to the difference between the humidity of the indoor air and a preset humidity threshold, causing the fan assembly to send air to the second air duct in a set manner.
  • the air duct delivers air, wherein there is a preset mapping relationship between the set method and the difference.
  • the air can be sent to the second air duct in different ways according to the difference between the humidity of the indoor air and the preset humidity threshold, so that air supply can be controlled according to different air humidity conditions.
  • the circulation area of the second air duct is set according to the difference between the humidity of the indoor air and the preset humidity threshold.
  • the fan assembly includes a fan.
  • the air outlet of the fan is connected to the first air duct and the second air duct through a three-way pipe.
  • a valve is arranged in the second air duct, and the flow area of the second air duct is adjusted by the valve.
  • the wind can discharge the large amount of "cold capacity" uploaded and exported from the drip tray, avoiding the low temperature of the bottom plate to cause condensation on the bottom surface of the bottom plate of the shell; the humidity of the indoor air is greater than the preset humidity threshold and the humidity of the indoor air
  • the opening of the valve is kept in a small state, and the fan can send less wind into the second air duct and more wind into the first air duct.
  • the humidity of the indoor air is relatively low, and the temperature of the bottom plate of the housing is slightly lowered and it is not easy to produce condensed water.
  • a small amount of wind can be sent to the second air duct to avoid the temperature of the bottom plate of the housing being too low.
  • the preset humidity threshold is determined according to the set target temperature.
  • the preset humidity threshold is set to 65%
  • the preset humidity threshold is set to 80%.
  • the lower the set target temperature, the lower the temperature of the indoor heat exchanger, and the lower the temperature of the condensed water collected in the drain pan, and the lower the bottom surface of the bottom plate is more likely to produce condensation. Setting the humidity threshold according to the temperature of the indoor air can more accurately determine whether it is necessary to send air to the second air duct to prevent condensation water from being generated on the lower surface of the bottom plate.
  • the duct type air conditioner includes an air conditioner indoor unit, which includes a housing 1.
  • the housing 1 includes an upper top plate 11, a surrounding side plate 12, a lower bottom plate 13, a top plate 11,
  • the side plate 12 and the lower bottom plate 13 are assembled together to form a housing 1, and the front side of the housing 1 has an air outlet 14.
  • the shell 1 is provided with a heat exchanger 2 and a water receiving tray 3, a first air passage 61 connected to the air outlet 14 is formed between the water receiving tray 3 and the top plate 11, and the heat exchanger 2 is arranged in the first air passage 61 ,
  • a second air duct 62 connected to the air outlet 14 is formed between the water receiving tray 3 and the bottom plate 13.
  • a fan assembly is also provided in the housing 1.
  • the fan assembly can continuously blow air into the first air duct 61 so that the air flow can exchange heat with the heat exchanger 2, and can selectively send air to the first air duct 61 during the process of supplying air to the first air duct 61.
  • the second air duct 62 supplies air.
  • the fan assembly includes a first group of fans and a second group of fans.
  • the first group of fans includes two first fans 41
  • the second group of fans includes a second fan 42
  • the second fan 42 is located between the two first fans 41
  • the impellers of the first fan 41 and the second fan 42 are synchronously connected by the same transmission shaft, and are driven by a motor 43.
  • the housing 1 is also provided with a switching mechanism, and the fan assembly can selectively blow air to the second air duct 62 by adjusting the state of the switching mechanism.
  • the switching mechanism includes a base (such as a vertical partition 5) and a switching baffle 54 arranged in the housing 1.
  • a first air port 51 is respectively provided on the vertical partition 5 near the left and right sides.
  • a second tuyere 52 and a third tuyere 53 are arranged toward the upper middle of the partition board 5.
  • the second tuyere 52 and the third tuyere 53 are arranged up and down adjacent to each other, and the first tuyere 51 and the second tuyere 52 are opposite to the first duct 61
  • the third air port 53 is aligned with the second air duct 62.
  • the air outlets of the two first fans 41 are respectively aligned with the two first air outlets 51 to communicate with the first air duct 61.
  • the air outlet of the second fan 42 is aligned with the positions where the second air outlet 52 and the third air outlet 53 are located.
  • the switch baffle 54 is slidably arranged at the position of the vertical partition 5 corresponding to the second air outlet 52 and the third air outlet 53, and the switch baffle 54 is driven by a linear motor (not shown in the figure).
  • the air outlet side 611 of the first air duct and the air outlet side 621 of the second air duct are adjacently arranged on the side plate 12 and communicate with the air outlet 14.
  • the indoor unit of the air conditioner is also provided with a controller (not shown in the figure) and a humidity sensor (not shown in the figure) connected to the controller.
  • the controller controls the humidity sensor to obtain the humidity of the indoor air, and the controller determines the forecast according to the set target temperature of the air-conditioning indoor unit.
  • Set the humidity threshold For example, the memory of the indoor unit of the air conditioner stores a mapping relationship table between the preset humidity threshold and the set target temperature. The controller finds the preset humidity threshold corresponding to the current set target temperature according to the mapping relationship table, and then judges The humidity of the indoor air and the preset humidity threshold. If the humidity of the indoor air is greater than the preset humidity threshold, the second fan 42 is controlled to send air to the second air duct 62. If the humidity of the indoor air is not greater than the preset humidity threshold, Then the second fan 42 is controlled to blow air to the first air duct 61.
  • the controller controls the motor 43 to drive the first fan 41 and the second fan 42 to rotate, and control the linear motor to drive switching
  • the baffle 54 slides to the second air opening 52 to close the second air opening 52 and the third air opening 53 to open, so that the air outlet of the second fan 42 communicates with the second air duct 62.
  • the controller controls the motor 43 to drive the first fan 41 and the second fan 42 to rotate, and controls the linear motor to drive the switching baffle 54 to slide to At the third tuyere 53, the second tuyere 52 is opened and the third tuyere 53 is closed, so that the outlet of the second fan 42 communicates with the first air duct 61.
  • the number of the first fan 41 is two and the number of the second fan 42 is one is only an exemplary description, and those skilled in the art can make adjustments as required, such as the first The number of fans 41 is one, three, etc., and the number of second fans 42 is two, three, etc.
  • the control switch baffle 54 is controlled from the state shown in FIG. 3 Sliding down for a certain distance makes the second tuyere 52 and the third tuyere 53 both in an open state and the flow cross-sectional area of the third tuyere 53 is smaller than the flow cross-sectional area of the second tuyere 52.
  • the opening degree of the third tuyere is determined according to the difference between the humidity of the indoor air and the preset humidity threshold. It should be noted that the linear growth relationship between the circulation area of the second air duct 62 and the difference between the humidity of the indoor air and the preset humidity threshold is only a specific setting method, for example, it can also be set in a stepped growth relationship. Wait.
  • the first fan 41 and the second fan 42 are independent of each other.
  • the controller controls the humidity sensor to obtain the humidity of the indoor air, and the controller determines the preset humidity threshold according to the set target temperature of the air conditioner indoor unit, such as an air conditioner
  • the memory of the indoor unit stores a mapping relationship table between the preset humidity threshold and the set target temperature.
  • the controller finds the preset humidity threshold corresponding to the current set target temperature according to the mapping relationship table, and then judges the humidity and the preset temperature of the indoor air. Set the size of the humidity threshold.
  • the speed of the second fan 42 is set according to the difference between the humidity of the indoor air and the preset humidity threshold, and the second fan 42 is controlled to send air to the second air duct 62; If the humidity of the air is not greater than the preset humidity threshold, the second fan 42 is controlled to blow air to the first air duct 61 at a rated speed.
  • the rotation speed of the second fan 42 is controlled according to the humidity of the indoor air, that is, the amount of air supplied into the second air duct 62 is adjusted according to the humidity of the indoor air.
  • the amount of air sent in the second air duct 62 can also be changed by changing the number of the second fans 42 that send air to the second air duct 62.
  • the preset time period is determined according to the set target temperature. For example, the lower the set target temperature is, the smaller the set time period is.
  • the fan assembly When the set target temperature is lower, the air outlet temperature is lower, and condensation is more likely to occur when the set target temperature is lower under the same humidity conditions. If the preset time is too long and the humidity of the indoor air continues to be greater than the preset humidity threshold for longer than the preset time, the fan assembly is controlled to send air into the second air duct. Condensed water may have been generated on the lower surface of the bottom plate of the housing, which will affect User experience. Determining the preset duration according to the set target temperature can avoid the occurrence of the above situation, and judge whether to supply air to the second air duct by the duration of the indoor air humidity continuously greater than the preset humidity threshold and the size of the preset duration. accurate.
  • the present invention also provides an air conditioner, the air conditioner includes an air conditioner indoor unit, the air conditioner indoor unit includes a controller, and the controller is used to execute the control method of any one of the technical solutions of the above-mentioned control method of the air conditioner indoor unit.
  • the air conditioner may be a wall-mounted air conditioner, a cabinet type air conditioner, or the like.
  • a second air duct is provided between the water receiving tray of the air conditioner indoor unit and the bottom plate of the housing.
  • the fan assembly sends air to the first air duct at the same time.
  • the air is selectively sent to the second air duct, which not only realizes the rapid export of the "cold capacity” conducted by the water tray, and avoids the "cold capacity” of the condensed water” in the water tray from being transferred to the bottom plate.
  • the purpose of making the temperature of the bottom plate too low also enables the remaining air supply capacity of the fan assembly to be used to supply air to the first air duct, thereby ensuring the cooling effect of the indoor unit of the air conditioner.

Abstract

一种空调器及其控制方法，旨在解决现有空调室内机在制冷模式下壳体底板下表面易产生凝露的问题。为此目的，空调器的室内机包括壳体（1），壳体（1）具有出风口（14）且壳体（1）内设置有换热器（2）和接水盘（3），接水盘（3）与壳体（1）的顶板（11）、底板（13）之间分别形成连接至出风口（14）的第一风道（61）和第二风道（62），换热器（2）位于第一风道（61）内，壳体（1）内还设置有风机组件，风机组件能够向第一风道（61）持续送风，同时选择性地向第二风道（62）送风；控制方法包括：使风机组件向第一风道（61）送风；在制冷模式下获取室内空气的湿度；风机组件根据室内空气的湿度选择性地向第二风道（62）送风。这样，既避免了底板（13）下表面产生冷凝水，又能充分利用风机组件的送风能力，保证室内机的制冷效果。

Description

空调器及其控制方法 技术领域
本发明涉及空调技术领域，具体提供了一种空调器及其控制方法。
背景技术
随着人们水平的提高，空调在人们的日常生活中得到了普遍的应用。如在炎热的夏天，在压缩机的驱动下，冷媒在循环管路中循环流动。冷媒在空调室内机的蒸发器中蒸发吸热，在风机的作用下空气流经蒸发器的外表面并与蒸发器换热而变成低温气流，使房间内的环境温度降低，提高了用户的舒适度。
通常，蒸发器的下方设置有接水盘用来盛接蒸发器表面产生的冷凝水以避免冷凝水滴落至电器元件造成电路短路而出现故障。接水盘与室内机壳体的底板接触。由于冷凝水温度较低，大量冷凝水积聚在接水盘内使室内机壳体的底板温度较低，室内空气中的水蒸气遇到室内机壳体的底板下表面易出现凝露，凝露滴落在地板造成地板脏污甚至损坏。
相应地，本领域需要一种新的技术方案来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有空调室内机在制冷模式下其壳体底板下表面易产生凝露的问题，本发明提供了一种空调器的控制方法，所述空调器包括空调室内机，所述空调室内机包括壳体，所述壳体具有出风口且所述壳体内设置有换热器和接水盘，所述接水盘与所述壳体的顶板之间形成连接至所述出风口的第一风道，所述换热器位于所述第一风道内，所述接水盘与所述壳体的底板之间形成连接至所述出风口的第二风道，所述壳体内还设置有风机组件，所述风机组件能够向所述第一风道持续送风以便气流与所述换热器换热，并且在向所述第一风道送风的过程中选择性地向所述第二风道送风；所述控制方法包括以下步骤：使得所述风机组件向所述第一风道送风；在制冷 模式下获取室内空气的湿度；所述风机组件根据室内空气的湿度选择性地向所述第二风道送风。
在上述控制方法的优选技术方案中，“所述风机组件根据室内空气的湿度选择性地向所述第二风道送风”的步骤包括：在室内空气的湿度大于预设湿度阈值的情形下，控制所述风机组件向所述第二风道送风。
在上述控制方法的优选技术方案中，“所述风机组件根据室内空气的湿度选择性地向所述第二风道送风”的步骤具体包括：在室内空气的湿度大于预设湿度阈值的时长超过预设时长的情形下，控制所述风机组件向所述第二风道送风。
在上述控制方法的优选技术方案中，“控制所述风机组件向所述第二风道送风”的步骤进一步包括：根据所述室内空气的湿度与所述预设湿度阈值的差值，使所述风机组件以设定的方式地向所述第二风道送风，其中，所述设定的方式与所述差值之间具有预设的映射关系。
在上述控制方法的优选技术方案中，所述设定的方式至少与所述第二风道的流通面积相关。
在上述控制方法的优选技术方案中，所述风机组件包括第一组风机和第二组风机，所述第一组风机和所述第二组风机均包括至少一个风机，所述第一组风机用于持续向所述第一风道送风，所述第二组风机能够选择性地向所述第二风道送风。
在上述控制方法的优选技术方案中，所述设定的方式还与所述第二组风机的运行状态相关。
在上述控制方法的优选技术方案中，所述壳体内包括切换机构，所述切换机构包括基体，所述基体上设置有第一风口、第二风口和第三风口，所述第一风口和所述第二风口均与所述第一风道对准，所述第三风口与所述第二风道对准，所述第一组风机与所述第一风口连通，所述第二组风机与所述第二风口和所述第三风口连通，所述切换挡板以可滑动的方式设置于所述基体对应于所述第二风口和所述第三风口的位置，以便使所述切换挡板能够遮挡所述第二风口和所述第三风口的至少一部分。
在上述控制方法的优选技术方案中，“根据室内空气的湿度选择性地向所述第二风道内送风”的步骤包括：在室内空气的湿度不大于预设湿度阈值的情形下控制所述第二组风机向所述第一风道送风。
本领域技术人员能够理解的是，在本发明的技术方案中，空调器包括空调室内机，空调室内机包括壳体，壳体具有出风口且壳体内设置有换热器和接水盘，接水盘与所述壳体的顶板之间形成连接至出风口的第一风道，换热器位于第一风道内，接水盘与壳体的底板之间形成连接至出风口的第二风道，壳体内还设置有风机组件，风机组件能够向第一风道持续送风以便气流与换热器换热，并且在向第一风道送风的过程中选择性地向第二风道送风；控制方法包括以下步骤：使得风机组件向第一风道送风；在制冷模式下获取室内空气的湿度；风机组件根据室内空气的湿度选择性地向第二风道送风。
在制冷模式下，空调室内机的换热器表面产生的冷凝水滴落并聚集在接水盘内。随着热量的传导，壳体的底板的温度会降低，室内空气与底板的下表面接触易产生凝露。室内空气的湿度越大，壳体的底板的下表面越容易产生冷凝水。在制冷模式下，风机组件向第一风道送风，获取室内空气的湿度，根据室内空气的湿度选择性地向第二风道送风，避免了壳体的底板产生凝露的情况。例如，在风机组件向第一风道送风的过程中，接水盘内冷凝水的“冷量”会传导至底板使底板的温度降低到一定的温度，如果室内空气的湿度大于预设湿度阈值，底板的下表面将会产生冷凝水，此时控制风机组件同时向第二风道送风，在第二风道内流动的气流将接水盘与壳体的底板隔开，同时流动的气流将接水盘传导出的“冷量”快速地导出，避免了接水盘内冷凝水的“冷量”传导至底板使底板的温度过低而在底板的下表面产生凝露的情况，从而避免了凝露滴落在地板上导致地板脏污甚至损坏的情况，优化了用户的使用体验；如果室内空气的湿度不大于预设湿度阈值，底板的下表面产生冷凝水的可能性非常小，此时风机组件无需向第二风道送风，风机组件可以全力向第一风道内送风，从而提高空调室内机的制冷效果。
优选地，“控制所述风机组件向所述第二风道送风”的步骤进一步包括：根据室内空气的湿度与预设湿度阈值的差值，使风机组件以设定的方式地向第二风道送风，其中，设定的方式与差值之间具有预设 的映射关系。例如，第二风道的流通面积根据室内空气的湿度与预设湿度阈值的差值设定。在室内空气的湿度大于预设湿度阈值需要向第二风道送风来避免壳体的底板的下表面产生冷凝水的情况下，室内空气的湿度越大，壳体的底板的下表面越容易产生冷凝水。如风机组件的总送风量不变的情况下，风机组件同时向第一风道和第二风道送风，此时根据室内空气的湿度与预设制度阈值的差值设定第二风道的通流面积，风机组件向第二风道的送风量与室内空气的湿度与预设制度阈值的差值相匹配，从而既实现了将接水盘传导出的“冷量”快速地导出，避免接水盘内冷凝水的“冷量”传导至底板使底板的温度过低的目的，又能够使风机组件的剩余送风能力用于向第一风道送风，保证空调室内机的制冷效果。
此外，本发明还提供了一种空调器，包括控制器，所述控制器用于执行上述空调器的控制方法的技术方案中任一项所述的空调器的控制方法。需要说明的是，该空调室内机具有上述空调器的控制方法的全部技术效果，在此不再赘述。
附图说明
下面参照附图并结合风管式空调室内机来描述本发明的优选实施方式，附图中：
图1是本发明一种实施例的风管式空调室内机的爆炸示意结构示意图；
图2是本发明一种实施例的风管式空调室内机的装配示意图；
图3是本发明一种实施例的风管式空调室内机的半剖图一(第二风道处于进风状态)；
图4是本发明一种实施例的风管式空调室内机的半剖图二(第二风道处于非进风状态)；
图5是本发明空调器的控制方法的流程图；
图6是本发明空调器的控制方法的逻辑图。
附图标记列表:
1、壳体；11、顶板；12、侧板；13、底板；14、出风口；2、换热器；3、接水盘；41、第一风机；42、第二风机；43、电机；5、竖 向隔板；51、第一风口；52、第二风口；53、第三风口；54、切换挡板；61、第一风道；611、第一风道出风侧；62、第二风道；621、第二风道出风侧。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。例如，虽然本发明是结合风管式空调室内机来对本发明进行介绍说明的，但是本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合，如本发明的空调器可以是壁挂式空调器、立柜式空调器等。显然，调整后的技术方案仍将落入本发明的保护范围。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“安装”、“设置”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，还可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。
参照图1至6，图1是本发明一种实施例的风管式空调室内机的爆炸示意结构示意图，图2是本发明一种实施例的风管式空调室内机的装配示意图，图3是本发明一种实施例的风管式空调室内机的半剖图一(第二风道处于进风状态)，图4是本发明一种实施例的风管式空调室内机的半剖图二(第二风道处于非进风状态)，图5是本发明空调器的控制方法的流程图，图6是本发明空调器的控制方法的逻辑图。
为了解决背景技术中提到的现有空调室内机在制冷模式下其壳体底板下表面易产生凝露的问题，本发明提供了一种空调器的控制方法，空调器包括空调室内机，空调室内机包括壳体，壳体具有出风口且壳体内设置有换热器和接水盘，接水盘与所述壳体的顶板之间形成连接至出风口的第一风道，换热器位于第一风道内，接水盘与壳体的底板之间形成连接至出风口的第二风道，壳体内还设置有风机组件，风机组件能够向第一风道持续送风以便气流与换热器换热，并且在向第一风道送风的过程中选择性地向第二风道送风。如图5所示，室内空调器的控制方法包括以下步骤：
S100、使得风机组件向第一风道内送风。如在空调器运行时，空调器的控制风机组件向第一风道送风。
S200、在制冷模式下获取室内空气的湿度。例如，空调室内机通过其上设置的湿度传感器来获取室内空气的湿度，湿度传感器与空调室内机的控制器连接，湿度传感器将检测到的室内空气的湿度传送至空调室内机的控制器。在制冷模式下，控制器控制湿度传感器检测室内空气的湿度，湿度传感器将检测到的室内空气的湿度传送至控制器。
S300、风机组件根据室内空气的湿度选择性地向第二风道送风。例如，在风机组件向第一风道送风的过程中，控制器根据湿度传感器发送来的室内空气的湿度来判断是否控制风机组件向第二风道内送风。当室内空气的湿度大于预设湿度阈值时，控制器控制风机组件同时向第二风道送风，在第二风道内流动的气流将接水盘与壳体的底板隔开，同时流动的气流将接水盘传导出的“冷量”快速地导出，避免了接水盘内冷凝水的“冷量”传导至底板使底板的温度过低而在底板的下表面产生凝露的情况，从而避免了凝露滴落在地板上导致地板脏污甚至损坏的情况，优化了用户的使用体验。当室内空气的湿度不大于预设湿度阈值，底板的下表面产生冷凝水的可能性非常小，此时控制器控制风机组件仅向第一风道内送风而不向第二风道内送风，壳体的底板的下表面不会产生冷凝水，并且风机组件仅向第一风道内送风，相对地增大了第一风道内的送风量，提高了空调室内机的制冷效率。
通过上述的控制方法，在制冷模式下风机组件根据室内空气的湿度选择性地向第二风道送风，既避免了制冷模式下空调室内机的底板 上产生冷凝水的情况，又相对地提高了空调室内机的制冷效率，优化了用户的使用体验。本领域技术人员可以理解的是，除了通过空调室内机上设置的湿度传感器来获取室内空气的湿度的方式之外，本领域技术人员可以在实际应用中灵活地调整室内空气的湿度的获取方式，如湿度传感器可以使独立地设置在室内的湿度传感器，加湿器上的湿度传感器或者人体佩戴的智能设备上的湿度传感器等，湿度传感器与空调室内机的控制器通过蓝牙、互联网等通信连接，控制器通过湿度传感器检测室内空气的湿度。
优选地，“控制所述风机组件向所述第二风道送风”的步骤进一步包括：根据室内空气的湿度与预设湿度阈值的差值，使风机组件以设定的方式地向第二风道送风，其中，设定的方式与差值之间具有预设的映射关系。通过这样的设置，可以根据室内空气的湿度与预设湿度阈值的差值按照不同的方式向第二风道送风，从而针对不同的空气湿度情况进行送风控制。例如，第二风道的流通面积根据室内空气的湿度与预设湿度阈值的差值设定。风机组件包括一个风机，该风机的出风口通过三通管与第一风道和第二风道连通，第二风道内设置阀门，通过阀门调节第二风道的流通面积。在室内空气的湿度大于预设湿度阈值并且室内空气的湿度与预设湿度阈值的差值较大时，使阀门的开度处于较大的状态，风机能够向第二风道内送入较多的风，能够将接水盘上传导出的大量“冷量”排出，避免底板的温度过低使壳体的底板的下表面产生冷凝水；在室内空气的湿度大于预设湿度阈值并且室内空气的湿度与预设湿度阈值的差值较小时，使阀门的开度处于较小的状态，风机能够向第二风道内送入较少的风，而向第一风道内送入较多的风，由于此时室内空气的湿度相对较小，壳体的底板的温度稍微降低也不容易产生冷凝水，可以向第二风道送入少量的风避免壳体的底板的温度过低即可。通过这样的设置，既避免了底板的下表面产生冷凝水的问题，又能够充分利用风机的送风能力向第一风道送风来保证空调室内机的制冷效果。
优选地，根据设定目标温度确定预设湿度阈值。示例性地，当设定目标温度为20℃时，预设湿度阈值设定为65％，当设定目标温度为27℃时，预设湿度阈值设定为80％。设定目标温度越低，室内换热器的温度越低，相应的聚集在接水盘内的冷凝水的温度越低，底板的下表面越 容易产生凝露。根据室内空气的温度设定湿度阈值，能够更为准确地判断是否需要向第二风道送风来防止底板的下表面产生冷凝水。
下面结合风管式空调器的室内机来进行详细介绍。
如图1至图4所示，风管式空调器包括空调室内机，空调室内机包括壳体1，壳体1包括上部的顶板11、四周的侧板12、下部的底板13，顶板11、侧板12和下部的底板13装配在一起形成壳体1，壳体1的前侧具有出风口14。壳体1内设置有换热器2和接水盘3，接水盘3与顶板11之间形成连接至出风口14的第一风道61，换热器2设置在第一风道61内，接水盘3与底板13之间形成连接至出风口14的第二风道62。壳体1内还设置有风机组件，风机组件能够向第一风道61内持续送风以便气流与换热器2换热，并且向第一风道61送风的过程中选择性地向第二风道62送风。
风机组件包括第一组风机和第二组风机，第一组风机包括两个第一风机41，第二组风机包括一个第二风机42，第二风机42位于两个第一风机41之间，第一风机41和第二风机42的叶轮通过同一传动轴同步连接，并且由电机43驱动。壳体1内还设置有切换机构，通过调整切换机构的状态使风机组件选择性地向第二风道62送风。具体地，切换机构包括设置在壳体1内的基体(如竖向隔板5)以及切换挡板54，竖向隔板5上靠近左右两侧的位置分别设置有一个第一风口51，竖向隔板5上中部位置设置有第二风口52和第三风口53，第二风口52和第三风口53上下相邻设置，第一风口51和第二风口52均与第一风道61对准，第三风口53与第二风道62对准。两个第一风机41的出风口分别通过与两个第一风口51对准从而与第一风道61连通。第二风机42的出风口与第二风口52和第三风口53所在的位置对准。切换挡板54以可滑动的方式设置于竖向隔板5对应于第二出风口52和第三出风口53的位置，并且切换挡板54通过直线电机(图中未示出)驱动。第一风道出风侧611和第二风道出风侧621相邻设置在侧板12上并与出风口14连通。空调室内机上还设置控制器(图中未示出)以及与控制器连接的湿度传感器(图中未示出)。
参照图3、图4和图6，在风管式空调器的室内机处于制冷模式的情况下，控制器控制湿度传感器获取室内空气的湿度，控制器根据空调室内机的设定目标温度确定预设湿度阈值，如空调室内机的存储器中存储有预设湿度阈值与设定目标温度映射关系表，控制器根据该映射关 系表查找出与当前设定目标温度对应的预设湿度阈值，然后判断室内空气的湿度与预设湿度阈值的大小，若室内空气的湿度大于预设湿度阈值，则控制第二风机42向第二风道62送风，若室内空气的湿度不大于预设湿度阈值，则控制第二风机42向第一风道61送风。
具体地，当室内空气的湿度大于预设湿度阈值需要第二风机42向第二风道62送风时，控制器控制电机43驱动第一风机41和第二风机42转动，控制直线电机驱动切换挡板54滑动至第二风口52处使第二风口52关闭第三风口53打开，从而使第二风机42的出风口与第二风道62连通。当室内空气的湿度不大于预设湿度阈值不需要向第二风道62送风时，控制器控制电机43驱动第一风机41和第二风机42转动，控制直线电机驱动切换挡板54滑动至第三风口53处使第二风口52打开第三风口53关闭，从而使第二风机42的出风口与第一风道61连通。
本领域技术人员可以理解的是，第一风机41的数量为2个、第二风机42的数量为1个仅是一种示例性的描述，本领域技术人员可以根据需要进行调整，如第一风机41的数量为1个、3个等，第二风机42的数量为2个、3个等。
在一种较为优选的实施方式中，在需要向第二风道62送风时，根据室内空气的湿度与预设湿度阈值的差值设定第二风道62的流通面积。如计算室内湿度RH与设定阀值RHt的差值δ，第三风口53的开度k＝a*δ+b，a为加权值，b为修正值。其中，a的取值范围为1～4，如a＝1、2、3或4；b的取值范围为0.1～0.4，如b＝0.1、0.2、0.3或0.4，a和b的值会根据空调室内机的风机、风道等不同而不同，具体的值可以根据实验测得，也可以根据经验值选取。
例如，在空调室内机的制冷功率较小时，换热器2表面的温度相对较高，接水盘3内冷凝水的温度相对较高，此时控制切换挡板54从图3所示的状态向下滑动一定的距离，使第二风口52和第三风口53均处于打开状态且第三风口53的通流截面积小于第二风口52的通流截面积。第二风机42送出的气流大部分通过第二风口52进入第一风道61，第二风机42送出的气流小部分通过第三风口53进入第二风道62。这样，既能够避免底板13的温度过低而在其下表面产生凝露的问题，又能够相对增大第一风道61内的气流量，提高换热量，进而提高制冷效果。在空调室内机的 制冷功率较大时，换热器2表面的温度相对较低，接水盘3内冷凝水的温度相对较低，此时控制切换挡板54从图3所示的状态向下滑动一定的距离，使第二风口52和第三风口53均处于打开状态且第三风口53的通流截面积大于第二风口52的通流截面积。这样，第二风机42送出的气流小部分通过第二风口52进入第一风道61，第二风机42送出的气流大部分通过第三风口53进入第二风道62。其中，第三风口的开度根据室内空气的湿度与预设湿度阈值的差值确定。需要说明的是，第二风道62的流通面积与室内空气的湿度和预设湿度阈值的差值之间呈线性增长关系仅是一种具体的设置方式，如也可以设置成阶梯形增长关系等。
在一种较为优选的实施方式中，第一风机41和第二风机42彼此独立。如图6所示，在风管式空调室内机处于制冷模式的情况下，控制器控制湿度传感器获取室内空气的湿度，控制器根据空调室内机的设定目标温度确定预设湿度阈值，如空调室内机的存储器中存储有预设湿度阈值与设定目标温度映射关系表，控制器根据该映射关系表查找出与当前设定目标温度对应的预设湿度阈值，然后判断室内空气的湿度与预设湿度阈值的大小。若室内空气的湿度大于预设湿度阈值，则根据室内空气的湿度与预设湿度阈值的差值设定第二风机42的转速，控制第二风机42向第二风道62送风；若室内空气的湿度不大于预设湿度阈值，则控制第二风机42以额定转速向第一风道61送风。通过这样的设置，在向第二风道62送风的情况下，根据室内空气的湿度控制第二风机42的转速，即根据室内空气的湿度调节向第二风道62内的送风量，既避免了底板的下表面产生冷凝水的问题，又避免了浪费电能。可以理解的是，在第二风机的数量为多个的情况下，也可以通过改变向第二风道62送风的第二风机42的数量来改变第二风道62内的送风量。
本领域技术人员可以理解的是，通过比较室内空气的湿度与预设湿度阈值的大小的方式来判断是否向第二风道送风仅是一种具体的判断方式，本领域技术人员可以根据需要对其作出调整，如比较室内空气的湿度持续大于预设湿度阈值的时长与预设时长的大小，如室内空气的湿度持续大于预设湿度阈值的时长超过预设时长，则控制风机组件向第二风道送风，否则不向第二风道送风。优选地，根据设定目标温度确定预设时长，如设定目标温度越低，则设定时长越小。当设定目标温度 较低时，出风温度较低，在相同湿度条件下设定目标温度较低时更易产生凝露。若预设时长过长，室内空气的湿度持续大于预设湿度阈值的时长超过预设时长时控制风机组件向第二风道内送风，壳体的底板的下表面可能已产生冷凝水，将影响用户的使用体验。根据设定目标温度确定预设时长，能够避免上述情况的出现，并且通过室内空气的湿度持续大于预设湿度阈值的时长与预设时长的大小判断是否向第二风道送风，判断结果更加准确。
此外，本发明还提供了一种空调器，空调器包括空调室内机，空调室内机包括控制器，控制器用于执行上述空调室内机的控制方法的技术方案中任一项的控制方法。可以理解的是，空调器可以是壁挂式空调器、立柜式空调器等。
通过以上描述可以看出，在本发明的技术方案中，空调室内机的接水盘与壳体的底板之间设置第二风道，在制冷模式下风机组件向第一风道送风的同时，根据室内空气的湿度选择性地向第二风道送风，既实现了将接水盘传导出的“冷量”快速地导出，避免接水盘内冷凝水的“冷量”传导至底板使底板的温度过低的目的，又能够使风机组件的剩余送风能力用于向第一风道送风，保证空调室内机的制冷效果。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (10)

  1. 一种空调器的控制方法，其特征在于，所述空调器包括空调室内机，所述空调室内机包括壳体，所述壳体具有出风口且所述壳体内设置有换热器和接水盘，所述接水盘与所述壳体的顶板之间形成连接至所述出风口的第一风道，所述换热器位于所述第一风道内，所述接水盘与所述壳体的底板之间形成连接至所述出风口的第二风道，所述壳体内还设置有风机组件，所述风机组件能够向所述第一风道持续送风以便气流与所述换热器换热，并且在向所述第一风道送风的过程中选择性地向所述第二风道送风；
    所述控制方法包括以下步骤：
    使得所述风机组件向所述第一风道送风；
    在制冷模式下获取室内空气的湿度；
    所述风机组件根据室内空气的湿度选择性地向所述第二风道送风。
  2. 根据权利要求1所述的控制方法，其特征在于，“所述风机组件根据室内空气的湿度选择性地向所述第二风道送风”的步骤包括：
    在室内空气的湿度大于预设湿度阈值的情形下，控制所述风机组件向所述第二风道送风。
  3. 根据权利要求1所述的控制方法，其特征在于，“所述风机组件根据室内空气的湿度选择性地向所述第二风道送风”的步骤具体包括：
    在室内空气的湿度大于预设湿度阈值的时长超过预设时长的情形下，控制所述风机组件向所述第二风道送风。
  4. 根据权利要求2或3所述的控制方法，其特征在于，“控制所述风机组件向所述第二风道送风”的步骤进一步包括：
    根据所述室内空气的湿度与所述预设湿度阈值的差值，使所述风机组件以设定的方式地向所述第二风道送风，
    其中，所述设定的方式与所述差值之间具有预设的映射关系。
  5. 根据权利要求4所述的控制方法，其特征在于，所述设定的方式至少与所述第二风道的流通面积相关。
  6. 根据权利要求5所述的控制方法，其特征在于，所述风机组件包括第一组风机和第二组风机，所述第一组风机和所述第二组风机均包括至少一个风机，所述第一组风机用于持续向所述第一风道送风，所述第二组风机能够选择性地向所述第二风道送风。
  7. 根据权利要求6所述的控制方法，其特征在于，所述设定的方式还与所述第二组风机的运行状态相关。
  8. 根据权利要求6所述的控制方法，其特征在于，所述壳体内包括切换机构，所述切换机构包括基体，所述基体上设置有第一风口、第二风口和第三风口，所述第一风口和所述第二风口均与所述第一风道对准，所述第三风口与所述第二风道对准，所述第一组风机与所述第一风口连通，所述第二组风机与所述第二风口和所述第三风口连通，所述切换挡板以可滑动的方式设置于所述基体对应于所述第二风口和所述第三风口的位置，以便使所述切换挡板能够遮挡所述第二风口和所述第三风口的至少一部分。
  9. 根据权利要求8所述的控制方法，其特征在于，“根据室内空气的湿度选择性地向所述第二风道内送风”的步骤包括：
    在室内空气的湿度不大于预设湿度阈值的情形下控制所述第二组风机向所述第一风道送风。
  10. 一种空调器，其特征在于，包括控制器，所述控制器用于执行权利要求1至9中任一项所述的空调器的控制方法。
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