CN111089340B - Air conditioner and control method thereof - Google Patents

Air conditioner and control method thereof Download PDF

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Publication number
CN111089340B
CN111089340B CN202010021976.2A CN202010021976A CN111089340B CN 111089340 B CN111089340 B CN 111089340B CN 202010021976 A CN202010021976 A CN 202010021976A CN 111089340 B CN111089340 B CN 111089340B
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China
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less
deltat
air
water
equal
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CN202010021976.2A
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CN111089340A (en
Inventor
翟振坤
吴俊鸿
廖敏
连彩云
梁博
田雅颂
梁之琦
周金声
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202010021976.2A priority Critical patent/CN111089340B/en
Publication of CN111089340A publication Critical patent/CN111089340A/en
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Classifications

    • 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
    • F24F1/0087—Indoor units, e.g. fan coil units with humidification means
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/0008—Control or safety arrangements for air-humidification
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application provides an air conditioner and a control method thereof. The air conditioner comprises an air outlet air duct (1), a water supply device and a humidifying device, wherein the water supply device is arranged on the outer side of the air outlet air duct (1), the humidifying device is connected with the water supply device and used for introducing humidifying water in the water supply device, and a humidifying end of the humidifying device extends to an air outlet path of the air outlet air duct (1) to humidify air blown out through the air outlet air duct (1). According to the air conditioner, when the air conditioner refrigerates, the problem that the indoor environment humidity is more reduced due to the influence of the evaporator is effectively solved, and the use experience of a user is improved.

Description

Air conditioner and control method thereof
Technical Field
The application relates to the technical field of air conditioning, in particular to an air conditioner and a control method thereof.
Background
Most of the prior variable frequency air conditioners have a refrigerating mode, an air supply mode, a dehumidifying mode and the like in a refrigerating season, after a user starts the refrigerating mode, when the temperature in a room reaches a temperature range set by the user, the air conditioner compressor still maintains a certain frequency to operate, at the moment, the indoor heat exchanger is an evaporator, and because the indoor air flows through the evaporator, the indoor moisture can be condensed on the surface of the evaporator, and when the indoor air circularly flows through the evaporator, the humidity in the room can be reduced along with the temperature reduction, so that the indoor environment humidity can not meet the user requirements.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to provide the air conditioner and the control method thereof, which can effectively solve the problem that the indoor environment humidity is more affected by the evaporator to be reduced when the air conditioner is used for refrigerating, and improve the use experience of users.
In order to solve the problem, the application provides an air conditioner, including air-out wind channel, water supply installation and humidification device, water supply installation sets up in the air-out wind channel outside, and humidification device is connected with water supply installation to introduce the humidification water in the water supply installation, humidification device's humidification end extends to the air-out on the air-out route in air-out wind channel, carries out the humidification to the wind that blows out through the air-out wind channel.
Preferably, the air conditioner further comprises an indoor heat exchanger, and the water supply device and the humidifying device are arranged in a space between the indoor heat exchanger and the air outlet duct.
Preferably, the water supply device comprises a water receiving disc, the water receiving disc is arranged at the bottom of the indoor heat exchanger and used for receiving condensed water flowing down on the indoor heat exchanger, and the humidifying device is used for introducing the condensed water in the water receiving disc into the air outlet air duct.
Preferably, the water supply device further comprises a water storage tank connected to the bottom of the water receiving tray, and the humidifying device is connected to a water outlet of the water storage tank.
Preferably, a water level sensor is arranged in the water receiving disc; and/or the water storage tank is provided with a water filling port, and the water filling port is used for accessing an external water source.
Preferably, the humidifying device comprises an atomizing device, the atomizing device is communicated with the water supply device, and a mist outlet of the atomizing device penetrates through the air duct wall of the air outlet duct and stretches into the air outlet duct.
Preferably, the mist outlet is arranged at the air inlet end of the air outlet duct.
Preferably, the humidifying device comprises a water absorbing unit, one end of the water absorbing unit is connected with the water supply device, and the other end of the water absorbing unit extends to the air outlet path.
Preferably, the water absorbing unit is a water absorbing plate, and the water absorbing plate is arranged at the air inlet end of the air duct wall of the air outlet air duct, extends along the end part of the air duct wall and forms a part of the air outlet air duct together with the air duct wall.
Preferably, the air conditioner further comprises a remote controller, and the remote controller comprises a cold air mode key for controlling the air conditioner to enter a cold air mode.
Preferably, the air conditioner further comprises a compressor and a controller for controlling an operation mode of the air conditioner, and when the air conditioner enters a cool air mode, performing the steps of:
controlling the compressor to be not operated or operated at a low frequency;
controlling the indoor fan to operate;
the water supply device and the humidifying device are controlled to operate, so that the humidifying device humidifies the air on the air outlet path.
According to another aspect of the present application, there is provided a control method of the air conditioner, including:
judging whether the air conditioner meets the preset condition of entering a cold air mode or not;
when the air conditioner meets the preset condition of entering the cold air mode, controlling the air conditioner to enter the cold air mode;
the cold air mode includes:
controlling the indoor fan to operate;
the water supply device and the humidifying device are controlled to operate, so that the humidifying device humidifies the air on the air outlet path.
Preferably, the cool air mode further includes:
the compressor is controlled to be not operated or to be operated at a low frequency.
Preferably, the step of controlling the operation of the indoor fan includes:
acquiring indoor relative humidity RH, inner ring temperature TN and indoor target temperature set value TS;
determining a target rotating speed RPM of the indoor fan according to RH, TN and TS;
and adjusting the rotating speed of the indoor fan to the target rotating speed.
Preferably, the step of determining the target rotational speed RPM of the indoor fan according to RH, TN, and TS includes:
setting the target rotation speed RPM to RPM01 when RH is less than or equal to RH1 and DeltaT is less than or equal to DeltaT 01;
when RH1 is less than RH and less than or equal to RH2 and DeltaT is less than or equal to DeltaT 01, setting the target rotating speed RPM to RPM 01+DeltaR01;
when RH2 is less than RH and DeltaT is less than or equal to DeltaT 01, setting the target rotating speed RPM to RPM 01+DeltaR02; and/or the number of the groups of groups,
setting the target rotation speed RPM to RPM02 when RH is less than or equal to RH1 and DeltaT 01 is less than DeltaT is less than or equal to DeltaT 02;
when RH1 is less than RH and less than or equal to RH2 and delta T01 is less than delta T and less than or equal to delta T02, setting the target rotating speed RPM to RPM 02+delta R01;
when RH2 is less than RH and DeltaT 01 is less than DeltaT and less than DeltaT 02, setting the target rotating speed RPM to RPM 02+DeltaR02; and/or the number of the groups of groups,
when RH is less than or equal to RH1 and delta T02 is less than delta T, setting the target rotating speed RPM to RPM03;
when RH1 is more than RH and less than RH2 and delta T02 is less than delta T, setting the target rotating speed RPM to RPM 03+delta R01;
when RH2 < RH and DeltaT 02 < DeltaT, setting the target rotation speed RPM as RPM 03+DeltaR02;
wherein, deltaT=TN-TS, deltaT 01, deltaT 02 are the value range of [ -2,3]; the values of DeltaR 01 and DeltaR 02 are in the range of [0, 200].
Preferably, the step of controlling the operation of the indoor fan includes:
acquiring an outer ring temperature TW, an inner ring temperature TN and an indoor target temperature set value TS;
determining a target rotating speed RPM of the indoor fan according to TW, TN and TS;
and adjusting the rotating speed of the indoor fan to the target rotating speed.
Preferably, the step of determining the target rotational speed RPM of the indoor fan according to TW, TN, and TS includes:
setting the target rotation speed RPM to RPM001 when TW is less than or equal to TW1 and DeltaT is less than or equal to DeltaT 001;
when TW1 < TW.ltoreq.TW2 and ΔT.ltoreq.ΔT001, setting the target rotational speed RPM to RPM001+ΔR001;
when TW2 < TW and DeltaT is less than or equal to DeltaT 001, the target rotational speed RPM is set to RPM 001+DeltaR002; and/or the number of the groups of groups,
when TW is less than or equal to TW1 and DeltaT 001 is less than DeltaT 002, setting the target rotational speed RPM to RPM002;
when TW1 < TW.ltoreq.TW2 and ΔT001 < ΔT.ltoreq.ΔT002, the target rotational speed RPM is set to RPM002+ΔR001;
when TW2 is less than TW and DeltaT 001 is less than DeltaT 002, setting the target rotating speed RPM to RPM 002+DeltaR002; and/or the number of the groups of groups,
when TW is less than or equal to TW1 and DeltaT 002 is less than DeltaT, setting the target rotating speed RPM to RPM003;
when TW1 is less than TW and less than TW2 and DeltaT 002 is less than DeltaT, setting the target rotating speed RPM to RPM 003+DeltaR001;
when TW2 < TW and ΔT002 < ΔT, the target rotational speed RPM is set to RPM003+ΔR002;
wherein, deltaT=TN-TS, the value ranges of DeltaT 001 and DeltaT 002 are [ -2,3]; the values of DeltaR 001 and DeltaR 002 are in the range of [0, 200].
Preferably, the step of controlling the compressor to be non-operated or to be operated at a low frequency comprises:
acquiring an outer ring temperature TW, an inner ring temperature TN and an indoor target temperature set value TS;
judging whether TW is less than or equal to T1, TN is less than or equal to T2 and DeltaT is less than or equal to DeltaT pressure are met simultaneously;
when the above conditions are satisfied at the same time, the compressor is controlled not to operate;
when at least one of the above conditions is not satisfied, entering into compressor operation control, and performing frequency control on the compressor according to delta T;
wherein T1 is the upper limit of the compressor operation outer ring, T2 is the upper limit of the compressor operation inner ring, Δt=tn-TS, and Δt is the compressor operation temperature difference.
Preferably, the preset conditions for entering the cool air mode are:
TW is less than or equal to T3, TN is less than or equal to T4, and a is less than or equal to DeltaT is less than or equal to b for T1 time;
ΔT＝TN-TS；
wherein TW is the outer ring temperature, TN is the inner ring temperature, T3 is the outer ring temperature upper limit value of the cold air mode, T4 is the inner ring temperature upper limit value of the cold air mode, TS is the indoor target temperature set value, T1 is the set entry time, a epsilon [ -2 ℃,0 ℃) ], b epsilon [0 ℃,3 ℃,
h is more than H1, H is the current water level height in the water supply device, and H1 is the lower limit value of the cold air mode water level height;
or alternatively, the first and second heat exchangers may be,
and receiving a control command for entering a cold air mode.
Preferably, the control method further includes:
detecting whether a cold air mode exit condition is met;
and when the cold air mode exit condition is detected to be met, controlling the air conditioner to exit the cold air mode.
Preferably, the cool air mode exit condition is:
TW > T3, TN > T4, RH > RH2, and c.ltoreq.DeltaT for a time T2, wherein TW is the outer ring temperature, TN is the inner ring temperature, T3 is the outer ring temperature upper limit value in the cold air mode, T4 is the inner ring temperature upper limit value in the cold air mode, TS is the indoor target temperature set value, T2 is the set exit time, c ε (3 ℃ C.,.
Receiving a control command for exiting the cold air mode; or alternatively, the first and second heat exchangers may be,
h is detected to be less than or equal to H1, H is the current water level height in the water supply device, and H1 is the lower limit value of the water level height in the cold air mode.
The application provides an air conditioner, including air-out wind channel, water supply installation and humidification device, water supply installation sets up in the air-out wind channel outside, and humidification device is connected with water supply installation to introduce the humidification water in the water supply installation, humidification device's humidification end extends to the air-out route in air-out wind channel on, carries out the humidification to the wind that blows out through the air-out wind channel. The air conditioner utilizes the humidifying device to introduce humidifying water in the water supply device into the air outlet path of the air conditioner, so that wind energy entering the air outlet air duct can be humidified, then the air conditioner can be humidified indoors when being blown out, and therefore certain humidity can be provided when cooling is realized in a refrigerating mode, the problem that the indoor environment humidity is influenced by an evaporator to be reduced more is effectively solved, and the user experience is improved.
Drawings
Fig. 1 is a schematic structural view of an air conditioner according to a first embodiment of the present application;
fig. 2 is a schematic structural view of an air conditioner according to a second embodiment of the present application;
fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present application;
fig. 4 is a flowchart illustrating a cold air mode control of an air conditioner according to an embodiment of the present application.
The reference numerals are expressed as:
1. an air outlet duct; 2. an indoor heat exchanger; 3. a water receiving tray; 4. a water storage tank; 5. a water inlet; 6. an atomizing device; 7. a mist outlet; 8. a water absorbing unit; 9. an indoor fan.
Detailed Description
Referring to fig. 1 to 4, according to the embodiment of the application, the air conditioner includes an air outlet duct 1, a water supply device and a humidifying device, the water supply device is arranged outside the air outlet duct 1, the humidifying device is connected with the water supply device and introduces humidifying water in the water supply device, and a humidifying end of the humidifying device extends to an air outlet path of the air outlet duct 1 to humidify air blown out through the air outlet duct 1.
The air conditioner utilizes the humidifying device to introduce humidifying water in the water supply device into the air outlet path of the air conditioner, so that the air in the air outlet air duct 1 can be humidified, and then the air can be humidified indoors when the air conditioner is blown out, so that certain humidity can be provided when the cooling is realized in a cooling mode, the problem that the indoor environment humidity is influenced by an evaporator to be reduced more is effectively solved, and the user experience is improved.
The air conditioner further comprises an indoor heat exchanger 2, and the water supply device and the humidifying device are arranged in the space between the indoor heat exchanger 2 and the air outlet air duct 1, so that the inner space of the air conditioner can be more reasonably utilized, the inner space of the air conditioner can be more fully applied, the problem that the whole volume of the air conditioner is increased due to the increase of the water supply device and the humidifying device is avoided, and the miniaturization of the air conditioner can be realized under the condition of guaranteeing the humidification and refrigeration of the air conditioner.
The water supply device comprises a water receiving disc 3, the water receiving disc 3 is arranged at the bottom of the indoor heat exchanger 2 and used for receiving condensed water flowing down on the indoor heat exchanger 2, and the humidifying device is used for introducing the condensed water in the water receiving disc 3 into the air outlet duct 1. In this embodiment, directly utilize the comdenstion water that the air conditioner work produced to humidify indoor air, can need not outside water source, control is more simple and convenient, can effectively realize the cyclic utilization of moisture in indoor moreover, and the practicality is strong, also makes the comdenstion water obtain more abundant and effectual utilization, improves resource utilization, reduces the wasting of resources, reduces overall cost.
The water supply device also comprises a water storage tank 4, the water storage tank 4 is connected to the bottom of the water receiving disc 3, and the humidifying device is connected to the water outlet of the water storage tank 4. Because the shape of water collector 3 generally suits with the shape of indoor heat exchanger 2 to guarantee to be able to all catch the comdenstion water that the indoor heat exchanger 2 that is located at least one side produced, consequently generally the area of water collector 3 is great, and the height is less, leads to the water level unlikely too high, in order to improve the effective utilization ratio of comdenstion water, through the mode that increases storage water tank 4, can store the comdenstion water that water collector 3 received in storage water tank 4, thereby reduce the area of spreading out of comdenstion water, increase the storage height of comdenstion water, be convenient for more effectively utilize the comdenstion water to carry out indoor humidification.
The water pan 3 is internally provided with a water level sensor, so that the water level in the water pan 3 can be detected, overflow of the water level in the water pan 3 due to overhigh water level is avoided, and pollution of condensed water to indoor environment is avoided.
The water storage tank 4 is provided with a water filling port 5, and the water filling port 5 is used for accessing an external water source. Through increasing water filling port 5, can utilize the outside water source to supply storage water tank 4, when the condensate water volume is less can't satisfy indoor humidification demand, can realize indoor humidification through the mode of outside water filling, satisfy user's user demand better.
Referring to fig. 1 in combination, according to the first embodiment of the present application, the humidifying device includes an atomizing device 6, the atomizing device 6 is communicated with a water supply device, and a mist outlet 7 of the atomizing device 6 extends into the air outlet duct 1 through a duct wall of the air outlet duct 1.
The mist outlet 7 is arranged at the air inlet end of the air outlet duct 1.
Adopt atomizing device 6 to atomize the humidification water, then spray in air-out wind channel 1, can make the distribution of moisture in air-out wind channel 1 more even to can mix with the air better, make the wet air moisture distribution that air-out wind channel 1 blows out more even, it is more even to indoor humidification.
Referring to fig. 2 in combination, according to the second embodiment of the present application, the humidifying device includes a water absorbing unit 8, one end of the water absorbing unit 8 is connected to the water supply device, and the other end extends to the air outlet path. In this embodiment, the water absorbing unit 8 can absorb and distribute the moisture in the water supply device on the surface of the water absorbing unit 8, when the air flows through the surface of the water absorbing unit 8, the air can be humidified and then blown into the room to form moist cold air, so that the indoor humidification can be realized while the refrigeration is realized, and the indoor air humidity is improved.
Preferably, the water absorbing unit 8 is a water absorbing plate, and the water absorbing plate is arranged at the air inlet end of the air duct wall of the air outlet air duct 1, extends along the end part of the air duct wall, and forms a part of the air outlet air duct 1 together with the air duct wall. The water absorbing sheet may comprise a sheet body and water absorbing fleece wrapped outside the sheet body, or other water absorbing material, such as sponge, etc. The water absorbing sheet may also be integrally made of a water absorbing material such as glass fiber, resin fiber, or the like.
The air conditioner further comprises a remote controller, and the remote controller comprises a cold air mode key for controlling the air conditioner to enter a cold air mode. The remote controller is additionally provided with the cold air mode keys, so that the air conditioner can be actively controlled to enter the cold air mode when needed, and the control flexibility of the air conditioner is improved.
The air conditioner also comprises a compressor and a controller, wherein the controller is used for controlling the running mode of the air conditioner and executing the following steps when the air conditioner enters the cold air mode: controlling the compressor to be not operated or operated at a low frequency; controlling the indoor fan 9 to operate; the water supply device and the humidifying device are controlled to operate, so that the humidifying device humidifies the air on the air outlet path. The low frequency is defined by the air conditioner itself, and the type of the air conditioner is different, and the definition of the low frequency may be different, but only the low frequency is not beyond that understood in a general sense. When the cold air mode is performed, the compressor can be controlled to not operate or to operate at a low frequency, the energy consumption of the air conditioner can be reduced, the indoor is refrigerated by utilizing the continuous cold energy of the indoor heat exchanger 2, and the indoor refrigeration requirement can be met by only providing less cold energy because the temperature in the room reaches the temperature range set by a user at the moment, and the indoor refrigeration requirement can be effectively met for a long time by utilizing the accumulated energy before the indoor heat exchanger 2, so that the energy consumption of the compressor can be reduced, and the energy saving effect of the air conditioner is effectively improved.
Referring to fig. 1 to 4 in combination, according to an embodiment of the present application, the control method of an air conditioner includes: judging whether the air conditioner meets the preset condition of entering a cold air mode or not; when the air conditioner meets the preset condition of entering the cold air mode, controlling the air conditioner to enter the cold air mode; the cold air mode includes: controlling the indoor fan 9 to operate; the water supply device and the humidifying device are controlled to operate, so that the humidifying device humidifies the air on the air outlet path.
Through the mode, the air conditioner can be conveniently controlled to enter the cold air mode, so that the air conditioner can humidify indoor air in a refrigerating state, indoor humidification requirements in the refrigerating state are met, and refrigeration requirements and comfort requirements of users are better met.
The cool air mode further includes: the compressor is controlled to be not operated or to be operated at a low frequency. When the cold air mode is performed, the compressor can be controlled to not operate or to operate at a low frequency, the energy consumption of the air conditioner can be reduced, the indoor is refrigerated by utilizing the continuous cold energy of the indoor heat exchanger 2, and the indoor refrigeration requirement can be met by only providing less cold energy because the temperature in the room reaches the temperature range set by a user at the moment, and the indoor refrigeration requirement can be effectively met for a long time by utilizing the accumulated energy before the indoor heat exchanger 2, so that the energy consumption of the compressor can be reduced, and the energy saving effect of the air conditioner is effectively improved.
The step of controlling the operation of the indoor fan 9 includes: acquiring indoor relative humidity RH, inner ring temperature TN and indoor target temperature set value TS; determining a target rotating speed RPM of the indoor fan 9 according to RH, TN and TS; the rotational speed of the indoor fan 9 is adjusted to the target rotational speed. When the humidity sensor is arranged in a room, the rotating speed of the indoor fan 9 can be directly regulated according to the indoor relative humidity RH, the inner ring temperature TN and the indoor target temperature set value TS, so that the indoor humidity RH and the inner ring temperature TN can be regulated to target values by proper wind speeds, and the regulation of the indoor environment temperature and the indoor environment humidity can be realized under the condition of meeting the energy-saving effect of the air conditioner.
The step of determining the target rotational speed RPM of the indoor fan 9 according to RH, TN and TS includes:
setting the target rotation speed RPM to RPM01 when RH is less than or equal to RH1 and DeltaT is less than or equal to DeltaT 01;
when RH1 is less than RH and less than or equal to RH2 and DeltaT is less than or equal to DeltaT 01, setting the target rotating speed RPM to RPM 01+DeltaR01;
when RH2 is less than RH and DeltaT is less than or equal to DeltaT 01, setting the target rotating speed RPM to RPM 01+DeltaR02; and/or the number of the groups of groups,
setting the target rotation speed RPM to RPM02 when RH is less than or equal to RH1 and DeltaT 01 is less than DeltaT is less than or equal to DeltaT 02;
when RH1 is less than RH and less than or equal to RH2 and delta T01 is less than delta T and less than or equal to delta T02, setting the target rotating speed RPM to RPM 02+delta R01;
when RH2 is less than RH and DeltaT 01 is less than DeltaT and less than DeltaT 02, setting the target rotating speed RPM to RPM 02+DeltaR02; and/or the number of the groups of groups,
when RH is less than or equal to RH1 and delta T02 is less than delta T, setting the target rotating speed RPM to RPM03;
when RH1 is more than RH and less than RH2 and delta T02 is less than delta T, setting the target rotating speed RPM to RPM 03+delta R01;
when RH2 < RH and DeltaT 02 < DeltaT, setting the target rotation speed RPM as RPM 03+DeltaR02;
wherein RPM01 is more than RPM02 and less than RPM03, deltaT=TN-TS, deltaT 01 and DeltaT 02 are set constants, and the value range is [ -2,3]; Δr01 and Δr02 are set constants, and the value ranges are [0, 200]. By controlling the fan, the accurate temperature control of the temperature in the room can be realized, and meanwhile, the energy-saving effect can be realized.
The above-mentioned section division may be a multi-section, not limited to the above-mentioned three-section, and may be adjusted according to actual conditions.
When the humidity sensor is not arranged in the room, the step of controlling the operation of the indoor fan 9 comprises the following steps: acquiring an outer ring temperature TW, an inner ring temperature TN and an indoor target temperature set value TS; determining a target rotating speed RPM of the indoor fan 9 according to TW, TN and TS; the rotational speed of the indoor fan 9 is adjusted to the target rotational speed. In this embodiment, since the humidity sensor is not provided, the temperature can be precisely controlled, and the rough control of the indoor humidity can be realized by utilizing the change of the temperature, and a certain indoor humidification effect can be realized.
The step of determining the target rotational speed RPM of the indoor fan 9 according to TW, TN, and TS includes:
setting the target rotation speed RPM to RPM001 when TW is less than or equal to TW1 and DeltaT is less than or equal to DeltaT 001;
when TW1 < TW.ltoreq.TW2 and ΔT.ltoreq.ΔT001, setting the target rotational speed RPM to RPM001+ΔR001;
when TW2 < TW and DeltaT is less than or equal to DeltaT 001, the target rotational speed RPM is set to RPM 001+DeltaR002; and/or the number of the groups of groups,
when TW is less than or equal to TW1 and DeltaT 001 is less than DeltaT 002, setting the target rotational speed RPM to RPM002;
when TW1 < TW.ltoreq.TW2 and ΔT001 < ΔT.ltoreq.ΔT002, the target rotational speed RPM is set to RPM002+ΔR001;
when TW2 is less than TW and DeltaT 001 is less than DeltaT 002, setting the target rotating speed RPM to RPM 002+DeltaR002; and/or the number of the groups of groups,
when TW is less than or equal to TW1 and DeltaT 002 is less than DeltaT, setting the target rotating speed RPM to RPM003;
when TW1 is less than TW and less than TW2 and DeltaT 002 is less than DeltaT, setting the target rotating speed RPM to RPM 003+DeltaR001;
when TW2 < TW and ΔT002 < ΔT, the target rotational speed RPM is set to RPM003+ΔR002;
wherein RPM001 is more than RPM002 is less than RPM003, deltaT=TN-TS, deltaT 001 and DeltaT 002 are constants, and the value range is [ -2,3]; ΔR001 and ΔR002 are both constants, and the value ranges are [0, 200].
The step of controlling the compressor to be not operated or to be operated at a low frequency includes: acquiring an outer ring temperature TW, an inner ring temperature TN and an indoor target temperature set value TS; judging whether TW is less than or equal to T1, TN is less than or equal to T2 and DeltaT is less than or equal to DeltaT pressure are met simultaneously; when the above conditions are satisfied at the same time, the compressor is controlled not to operate; when at least one of the above conditions is not satisfied, entering into compressor operation control, and performing frequency control on the compressor according to delta T; wherein T1 is the upper limit of the compressor operation outer ring, T2 is the upper limit of the compressor operation inner ring, Δt=tn-TS, and Δt is the compressor operation temperature difference. The higher the inner ring temperature is, the larger the difference value between the set value and the actual inner ring temperature is, which indicates that the refrigerating capacity required by the room is large, and the compressor is required to operate at the moment, so that the better refrigerating effect can not be achieved by humidifying alone. If the temperature of the inner ring is not high and the temperature difference between the inner ring and the set value is not large, the compressor is not required to operate, and the indoor temperature can be reduced through humidification, so that the energy-saving effect is realized.
The preset conditions for entering the cold air mode are as follows: TW is less than or equal to T3, TN is less than or equal to T4, and a is less than or equal to DeltaT is less than or equal to b for T1 time; Δt=tn-TS; wherein TW is the outer ring temperature, TN is the inner ring temperature, T3 is the outer ring temperature upper limit value of the cold air mode, T4 is the inner ring temperature upper limit value of the cold air mode, TS is the indoor target temperature set value, T1 is the duration after reaching the conditions that TW is less than or equal to T3, TN is less than or equal to T4 and a is less than or equal to DeltaT is less than or equal to b, a is less than or equal to minus 2 ℃,0 ℃, b is less than or equal to 0 ℃,3 ℃; h is greater than H1, H is the current water level height in the water supply device, and H1 is the lower limit value of the cold air mode water level height;
or, a control command for entering the cold air mode is received.
The control method further comprises the following steps: detecting whether a cold air mode exit condition is met; and when the cold air mode exit condition is detected to be met, controlling the air conditioner to exit the cold air mode.
The cold air mode exit condition is: TW > T3, TN > T4, RH > RH2, and c.ltoreq.DeltaT for a time T2, wherein TW is the outer ring temperature, TN is the inner ring temperature, T3 is the outer ring temperature upper limit value in the cold air mode, T4 is the inner ring temperature upper limit value in the cold air mode, TS is the indoor target temperature set value, T2 is the time duration after TW > T3, TN > T4, RH > RH2, and c.ltoreq.DeltaT conditions, c.epsilon.3 ℃,. Sup.infinity ],
receiving a control command for exiting the cold air mode; or alternatively, the first and second heat exchangers may be,
h is detected to be less than or equal to H1, H is the current water level height in the water supply device, and H1 is the lower limit value of the water level height in the cold air mode.
As can be seen from fig. 4, when the air conditioner is in the cold air mode, if the compressor is in the running state, the compressor, the inner fan, the outer fan and the throttling device are all in closed-loop control at this time, so that the running state of the air conditioner can be adjusted in real time according to the changes of the indoor temperature and humidity states, and the indoor temperature and humidity can be in a proper range. If the compressor is not in an operating state, the compressor and the throttling device are not involved in the control of the air conditioner, and the indoor temperature and the indoor humidity can be effectively regulated by only carrying out closed-loop control on the inner fan, so that the indoor temperature and the indoor humidity are ensured to be in a proper range, and the comfort requirement of a user is better met.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiment of the present invention is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The foregoing is merely a preferred embodiment of the present application and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principles of the present application, and these modifications and variations should also be regarded as the scope of the present application.

Claims (17)

1. The control method of the air conditioner is characterized in that the air conditioner comprises an air outlet air duct (1), a water supply device and a humidifying device, wherein the water supply device is arranged outside the air outlet air duct (1), the humidifying device is connected with the water supply device and introduces humidifying water in the water supply device, and a humidifying end of the humidifying device extends to an air outlet path of the air outlet air duct (1) to humidify air blown out by the air outlet air duct (1);
the control method comprises the following steps:
judging whether the air conditioner meets the preset condition of entering a cold air mode or not;
the preset conditions for entering the cold air mode are as follows:
TW is less than or equal to T3, TN is less than or equal to T4, and a is less than or equal to DeltaT is less than or equal to b for T1 time;
ΔT=TN-TS；
wherein TW is the outer ring temperature, TN is the inner ring temperature, T3 is the outer ring temperature upper limit value of the cold air mode, T4 is the inner ring temperature upper limit value of the cold air mode, TS is the indoor target temperature set value, T1 is the set entry time, a epsilon [ -2 ℃,0 ℃) ], b epsilon [0 ℃,3 ℃,
h is more than H1, H is the current water level height in the water supply device, and H1 is the lower limit value of the cold air mode water level height;
or alternatively, the first and second heat exchangers may be,
receiving a control command for entering a cold air mode;
when the air conditioner meets the preset condition of entering the cold air mode, controlling the air conditioner to enter the cold air mode;
the cold air mode includes:
controlling the indoor fan (9) to operate;
controlling the water supply device and the humidifying device to operate so that the humidifying device humidifies the air on the air outlet path;
controlling the compressor to be not operated or operated at a low frequency;
the step of controlling the compressor to be not operated or to be operated at a low frequency includes:
acquiring an outer ring temperature TW, an inner ring temperature TN and an indoor target temperature set value TS;
judging whether TW is less than or equal to T1, TN is less than or equal to T2 and DeltaT is less than or equal to DeltaT pressure are met simultaneously;
when the above conditions are satisfied at the same time, the compressor is controlled not to operate;
when at least one of the above conditions is not satisfied, entering into compressor operation control, and performing frequency control on the compressor according to delta T;
wherein T1 is the upper limit of the compressor operation outer ring, T2 is the upper limit of the compressor operation inner ring, Δt=tn-TS, and Δt is the compressor operation temperature difference.
2. The control method of an air conditioner according to claim 1, further comprising an indoor heat exchanger (2), wherein the water supply device and the humidifying device are disposed in a space between the indoor heat exchanger (2) and the outlet air duct (1).
3. The control method of an air conditioner according to claim 2, wherein the water supply device comprises a water receiving disc (3), the water receiving disc (3) is arranged at the bottom of the indoor heat exchanger (2) and is used for receiving condensed water flowing down on the indoor heat exchanger (2), and the humidifying device is used for introducing the condensed water in the water receiving disc (3) into the air outlet duct (1).
4. A control method of an air conditioner according to claim 3, wherein the water supply device further comprises a water storage tank (4), the water storage tank (4) is connected to a bottom of the water receiving tray (3), and the humidifying device is connected to a water outlet of the water storage tank (4).
5. The control method of an air conditioner according to claim 4, wherein a water level sensor is provided in the water receiving tray (3); and/or a water filling port (5) is arranged on the water storage tank (4), and the water filling port (5) is used for accessing an external water source.
6. The control method of an air conditioner according to claim 1, wherein the humidifying device comprises an atomizing device (6), the atomizing device (6) is communicated with the water supply device, and a mist outlet (7) of the atomizing device (6) penetrates through an air duct wall of the air outlet air duct (1) and stretches into the air outlet air duct (1).
7. The control method of an air conditioner according to claim 6, wherein the mist outlet (7) is provided at an air inlet end of the air outlet duct (1).
8. The control method of an air conditioner according to claim 1, wherein the humidifying device includes a water absorbing unit (8), one end of the water absorbing unit (8) is connected to the water supply device, and the other end extends to an air outlet path.
9. The control method of an air conditioner according to claim 8, wherein the water absorbing unit (8) is a water absorbing plate, and the water absorbing plate is disposed at an air inlet end of an air duct wall of the air outlet air duct (1) and extends along an end of the air duct wall to form a part of the air outlet air duct (1) together with the air duct wall.
10. The control method of an air conditioner according to claim 1, wherein the air conditioner further comprises a remote controller including a cool air mode key for controlling the air conditioner to enter a cool air mode.
11. The control method of an air conditioner according to claim 1, wherein the air conditioner further comprises a compressor and a controller for controlling an operation mode of the air conditioner.
12. The control method according to claim 1, characterized in that the step of controlling the operation of the indoor fan (9) comprises:
acquiring indoor relative humidity RH, inner ring temperature TN and indoor target temperature set value TS;
determining a target rotating speed RPM of the indoor fan (9) according to RH, TN and TS;
and adjusting the rotating speed of the indoor fan (9) to a target rotating speed.
13. The control method according to claim 12, characterized in that the step of determining the target rotational speed RPM of the indoor fan (9) from RH, TN and TS comprises:
setting the target rotation speed RPM to RPM01 when RH is less than or equal to RH1 and DeltaT is less than or equal to DeltaT 01;
when RH1 is less than RH and less than or equal to RH2 and DeltaT is less than or equal to DeltaT 01, setting the target rotating speed RPM to RPM 01+DeltaR01;
when RH2 is less than RH and DeltaT is less than or equal to DeltaT 01, setting the target rotating speed RPM to RPM 01+DeltaR02; and/or the number of the groups of groups,
setting the target rotation speed RPM to RPM02 when RH is less than or equal to RH1 and DeltaT 01 is less than DeltaT is less than or equal to DeltaT 02;
when RH1 is less than RH and less than or equal to RH2 and delta T01 is less than delta T and less than or equal to delta T02, setting the target rotating speed RPM to RPM 02+delta R01;
when RH2 is less than RH and DeltaT 01 is less than DeltaT and less than DeltaT 02, setting the target rotating speed RPM to RPM 02+DeltaR02; and/or the number of the groups of groups,
when RH is less than or equal to RH1 and delta T02 is less than delta T, setting the target rotating speed RPM to RPM03;
when RH1 is more than RH and less than RH2 and delta T02 is less than delta T, setting the target rotating speed RPM to RPM 03+delta R01;
when RH2 < RH and DeltaT 02 < DeltaT, setting the target rotation speed RPM as RPM 03+DeltaR02;
wherein, deltaT=TN-TS, deltaT 01, deltaT 02 are the value range of [ -2,3]; the values of DeltaR 01 and DeltaR 02 are in the range of [0, 200].
14. The control method according to claim 1, characterized in that the step of controlling the operation of the indoor fan (9) comprises:
acquiring an outer ring temperature TW, an inner ring temperature TN and an indoor target temperature set value TS;
determining a target rotating speed RPM of the indoor fan (9) according to TW, TN and TS;
and adjusting the rotating speed of the indoor fan (9) to a target rotating speed.
15. The control method according to claim 14, characterized in that the step of determining the target rotational speed RPM of the indoor fan (9) from TW, TN, and TS includes:
setting the target rotation speed RPM to RPM001 when TW is less than or equal to TW1 and DeltaT is less than or equal to DeltaT 001;
when TW1 < TW.ltoreq.TW2 and ΔT.ltoreq.ΔT001, setting the target rotational speed RPM to RPM001+ΔR001;
when TW2 < TW and DeltaT is less than or equal to DeltaT 001, the target rotational speed RPM is set to RPM 001+DeltaR002; and/or the number of the groups of groups,
when TW is less than or equal to TW1 and DeltaT 001 is less than DeltaT 002, setting the target rotational speed RPM to RPM002;
when TW1 < TW.ltoreq.TW2 and ΔT001 < ΔT.ltoreq.ΔT002, the target rotational speed RPM is set to RPM002+ΔR001;
when TW2 is less than TW and DeltaT 001 is less than DeltaT 002, setting the target rotating speed RPM to RPM 002+DeltaR002; and/or the number of the groups of groups,
when TW is less than or equal to TW1 and DeltaT 002 is less than DeltaT, setting the target rotating speed RPM to RPM003;
when TW1 is less than TW and less than TW2 and DeltaT 002 is less than DeltaT, setting the target rotating speed RPM to RPM 003+DeltaR001;
when TW2 < TW and ΔT002 < ΔT, the target rotational speed RPM is set to RPM003+ΔR002;
wherein, deltaT=TN-TS, the value ranges of DeltaT 001 and DeltaT 002 are [ -2,3]; the values of DeltaR 001 and DeltaR 002 are in the range of [0, 200].
16. The control method according to claim 1, characterized in that the control method further comprises:
detecting whether a cold air mode exit condition is met;
and when the cold air mode exit condition is detected to be met, controlling the air conditioner to exit the cold air mode.
17. The control method according to claim 16, wherein the cool air mode exit condition is:
TW > T3, TN > T4, RH > RH2, and c.ltoreq.DeltaT for a time T2, wherein TW is the outer ring temperature, TN is the inner ring temperature, T3 is the outer ring temperature upper limit value in the cold air mode, T4 is the inner ring temperature upper limit value in the cold air mode, TS is the indoor target temperature set value, T2 is the set exit time, c ε (3 ℃ C.,.
Receiving a control command for exiting the cold air mode; or alternatively, the first and second heat exchangers may be,
h is detected to be less than or equal to H1, H is the current water level height in the water supply device, and H1 is the lower limit value of the water level height in the cold air mode.
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