CN110285546B - Control method for air conditioner indoor unit and air conditioner indoor unit - Google Patents

Control method for air conditioner indoor unit and air conditioner indoor unit Download PDF

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Publication number
CN110285546B
CN110285546B CN201910630299.1A CN201910630299A CN110285546B CN 110285546 B CN110285546 B CN 110285546B CN 201910630299 A CN201910630299 A CN 201910630299A CN 110285546 B CN110285546 B CN 110285546B
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Prior art keywords
air
supply fan
air supply
rotating speed
indoor
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CN110285546A (en
Inventor
孙婷
郝本华
侯延慧
李进超
王宪强
张培虎
张德明
李国行
王珂
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Priority to CN201910630299.1A priority Critical patent/CN110285546B/en
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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
    • 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
    • F24F11/70—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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • 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
    • F24F2110/22—Humidity of the outside air
    • 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
    • F24F2110/50—Air quality properties
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a control method for an air conditioner indoor unit and the air conditioner indoor unit. The indoor unit of the air conditioner comprises an indoor heat exchanger and a fresh air device which guides outdoor air to the upstream of the indoor heat exchanger. The control method comprises the following steps: acquiring the air humidity of the outdoor environment; judging whether the air humidity is greater than or equal to a preset humidity threshold value or not; and starting the fresh air device under the condition that the air humidity is greater than or equal to the preset humidity threshold value and the indoor heat exchanger is in a refrigerating state. According to the invention, under the condition that the humidity of the outdoor air exceeds the threshold value, the fresh air device is started only when the indoor heat exchanger is in a refrigerating state, and the outdoor air can be dehumidified through the indoor heat exchanger, so that the discomfort of a user caused by overhigh humidity of the indoor environment is avoided.

Description

Control method for air conditioner indoor unit and air conditioner indoor unit
Technical Field
The invention relates to the field of air conditioning, in particular to a control method for an air conditioner indoor unit and the air conditioner indoor unit.
Background
In order to avoid the problem of air quality such as excessive carbon dioxide concentration caused by poor ventilation in the indoor environment, a fresh air device communicated with the outdoor environment is usually added in the indoor unit to introduce the outdoor air into the indoor environment. However, the existing air conditioner indoor unit with the fresh air device has the technical problems that the outdoor air temperature and the body sensing temperature have temperature difference to cause discomfort of users, the indoor unit always consumes electric energy all the year round and the outdoor environment is overhigh in humidity to cause discomfort of users.
Disclosure of Invention
An object of the first aspect of the present invention is to provide a control method for an indoor unit of an air conditioner having a fresh air device, which can avoid an excessive humidity in an indoor environment.
It is a further object of the first aspect of the invention to achieve comfortable air supply and save electrical energy.
It is a further object of the first aspect of the invention to reduce the temperature difference of the environment in the chamber in the vertical direction.
An object of the second aspect of the present invention is to provide an indoor unit of an air conditioner having a fresh air device.
According to a first aspect of the present invention, there is provided a control method for an indoor unit of an air conditioner, the indoor unit of an air conditioner including an indoor heat exchanger and a fresh air device that guides outdoor air to an upstream of the indoor heat exchanger; the control method is characterized by comprising the following steps:
acquiring the air humidity of the outdoor environment;
judging whether the air humidity is greater than or equal to a preset humidity threshold value or not;
and starting the fresh air device under the condition that the air humidity is greater than or equal to the preset humidity threshold value and the indoor heat exchanger is in a refrigerating state.
Optionally, the indoor unit of the air conditioner further comprises a first air supply fan and a second air supply fan which are arranged at the downstream of the indoor heat exchanger, and the distance between a fresh air outlet of the fresh air device and a fan air inlet of the first air supply fan is greater than the distance between the fresh air outlet of the fresh air device and a fan air inlet of the second air supply fan; the indoor heat exchanger is characterized in that the indoor heat exchanger further comprises the following components in a refrigerating state under the condition that the air humidity is greater than or equal to a preset humidity threshold value:
and adjusting the rotating speed of the first air supply fan to be 90% -100% of the rated rotating speed, and closing the second air supply fan.
Optionally, the indoor unit of the air conditioner further comprises a first air supply fan and a second air supply fan which are arranged at the downstream of the indoor heat exchanger, and the distance between a fresh air outlet of the fresh air device and a fan air inlet of the first air supply fan is greater than the distance between the fresh air outlet of the fresh air device and a fan air inlet of the second air supply fan; it is characterized by also comprising:
acquiring outdoor environment temperature and indoor environment temperature under the condition that the air humidity is greater than or equal to a preset humidity threshold value and the indoor heat exchanger works;
determining whether the indoor ambient temperature is closer to a user desired temperature than the outdoor ambient temperature;
if so, starting the fresh air device, and adjusting the rotating speeds of the first air supply fan and the second air supply fan to enable the rotating speed of the first air supply fan to be greater than that of the second air supply fan;
if not, the fresh air device is started, and the rotating speeds of the first air supply fan and the second air supply fan are adjusted to enable the rotating speed of the first air supply fan to be smaller than that of the second air supply fan.
Optionally, the step of determining whether the indoor ambient temperature is closer to a user desired temperature than the outdoor ambient temperature comprises:
under the condition that the indoor heat exchanger is in a refrigerating state, judging whether the outdoor environment temperature is greater than the indoor environment temperature, if so, comparing the indoor environment temperature with the outdoor environment temperature, and enabling the indoor environment temperature to be closer to the expected temperature of a user;
and under the condition that the indoor heat exchanger is in a heating state, judging whether the outdoor environment temperature is lower than the indoor environment temperature, if so, comparing the indoor environment temperature with the outdoor environment temperature to be closer to the expected temperature of the user.
Optionally, the first air supply fan is arranged above the second air supply fan, and is characterized in that,
under the condition that the indoor heat exchanger is in a refrigerating state and the outdoor environment temperature is higher than the indoor environment temperature, the rotating speed of the first air supply fan is 90% -100% of the rated rotating speed, and the rotating speed of the second air supply fan is 30% -40% of the rated rotating speed; and/or
Under the condition that the indoor heat exchanger is in a refrigerating state and the outdoor environment temperature is less than or equal to the indoor environment temperature, the rotating speed of the first air supply fan is 30% -40% of the rated rotating speed, and the rotating speed of the second air supply fan is 90% -100% of the rated rotating speed; and/or
Under the condition that the indoor heat exchanger is in a heating state and the outdoor environment temperature is lower than the indoor environment temperature, the rotating speed of the first air supply fan is 90-100% of the rated rotating speed, and the rotating speed of the second air supply fan is 20-30% of the rated rotating speed; and/or
And under the condition that the indoor heat exchanger is in a heating state and the outdoor environment temperature is more than or equal to the indoor environment temperature, the rotating speed of the first air supply fan is 20-30% of the rated rotating speed, and the rotating speed of the second air supply fan is 90-100% of the rated rotating speed.
Optionally, the control method further includes:
and under the condition that the air humidity is greater than or equal to a preset humidity threshold value and the indoor heat exchanger does not work, starting the fresh air device, and adjusting the rotating speeds of the first air supply fan and the second air supply fan to enable the rotating speed of the first air supply fan to be smaller than that of the second air supply fan.
Optionally, when the air humidity is greater than or equal to a preset humidity threshold and the indoor heat exchanger does not operate, the rotation speed of the first air supply fan is 60% to 70% of the rated rotation speed, and the rotation speed of the second air supply fan is 90% to 100% of the rated rotation speed.
Optionally, the control method further includes:
acquiring the carbon dioxide concentration of the indoor environment;
judging whether the concentration of the carbon dioxide is greater than or equal to a preset concentration threshold value;
if yes, the fresh air device is started.
Optionally, the control method further includes:
acquiring an air quality index of an outdoor environment;
judging whether the air quality index is less than or equal to a preset quality threshold value or not;
if yes, starting the fresh air device; and/or
After the fresh air device is started, acquiring the concentration of carbon dioxide in the indoor environment;
judging whether the concentration of the carbon dioxide is smaller than the preset concentration threshold value;
if yes, the fresh air device is closed.
According to a second aspect of the present invention, there is also provided an indoor unit of an air conditioner, comprising an indoor heat exchanger, a fresh air device for guiding outdoor air to upstream of the indoor heat exchanger, and a controller, wherein the controller is configured to execute any one of the control methods described above.
According to the invention, under the condition that the humidity of the outdoor air exceeds the threshold value, the fresh air device is started only when the indoor heat exchanger is in a refrigerating state, and the outdoor air can be dehumidified through the indoor heat exchanger, so that the discomfort of a user caused by overhigh humidity of the indoor environment is avoided.
Furthermore, under the condition that the humidity of the outdoor air is lower than the humidity threshold value, the rotating speed of the first air supply fan is higher than that of the second air supply fan when the internal environment temperature is closer to the temperature expected by the user than the outdoor environment temperature, so that the outdoor air can be sucked into the first air supply fan more, the heat exchange path of the outdoor air is further prolonged, the temperature of the air flow blown out by the first air outlet and the second air outlet is uniform, and the user is prevented from feeling discomfort caused by the temperature difference between the outdoor air and the indoor air; when the outdoor environment temperature is closer to the user expected temperature compared with the indoor environment temperature, the rotating speed of the second air supply fan is lower than that of the second air supply fan, so that the outdoor air can enter an indoor flowing path, the air volume of the sucked outdoor air is maximized, the working time of the fresh air impeller is shortened, and the energy consumption is reduced.
Particularly, the invention does not stop the other air supply fan while increasing the rotating speed of one air supply fan, not only can quickly and comprehensively ventilate the indoor environment, but also can utilize the air supply fan with low rotating speed to promote the air to flow upwards and be sucked by the air supply fan with high rotating speed, thereby ensuring the air volume of the sucked outdoor air and prolonging the service life of the air supply fan
Furthermore, the invention adjusts the rotating speed ratio of the first air supply fan and the second air supply fan, so that the temperature of the air flow blown out from the first air outlet and the second air outlet is uniform, the air quantity of the sucked outdoor air is maximized, and the temperature difference of the environment in the small chamber is reduced in the vertical direction, thereby preventing the heat exchanger from frosting in the refrigeration state.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic cross-sectional view of an air conditioning indoor unit according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method for an air conditioning indoor unit according to an embodiment of the present invention;
fig. 3 is a detailed flowchart of a control method for an air conditioning indoor unit according to a preferred embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic cross-sectional view of an air conditioning indoor unit 100 according to one embodiment of the present invention. Referring to fig. 1, the indoor unit 100 of the air conditioner may include a casing 110, a first supply fan 120, a second supply fan 130, an indoor heat exchanger 140, a fresh air device, and a controller (not shown) storing a computer program.
The casing 110 may be provided with a casing inlet 111 for air to flow into, and a first outlet 112 and a second outlet 113 for air to flow out. The housing air inlet 111 may be opened at a rear wall of the housing 110, and the first air outlet 112 may be opened at a front wall of the housing 110.
The first and second blower fans 120 and 130 may be disposed in the cabinet 110 and configured to draw air from the surrounding environment of the cabinet inlet 111 and to cause the air to flow toward the first and second outlets 112 and 113, respectively. The first and second supply fans 120 and 130 may be the same type. The first and second blower fans 120 and 130 may be both centrifugal fans to increase the amount of air supplied to the indoor unit 100.
The indoor heat exchanger 140 may be disposed on an intake air flow path between the cabinet air intake 111 and the first and second blower fans 120 and 130, and exchanges heat with air flowing therethrough to change the temperature of the air flowing therethrough into heat-exchanged air.
The fresh air device can include a fresh air duct 151 having a fresh air inlet and a fresh air outlet and a fresh air impeller 152 disposed in the fresh air duct 151, wherein the fresh air inlet can communicate with the outdoor environment through a fresh air pipeline 160, and the fresh air impeller 152 can be configured to suck the outdoor air through the fresh air inlet and cause the outdoor air to flow to the upstream of the indoor heat exchanger 140 through the fresh air duct 151, thereby exchanging heat with the indoor heat exchanger 140.
In some embodiments, the controller may be configured to activate the fresh air device based on a carbon dioxide concentration of the indoor environment. Specifically, when the carbon dioxide concentration of the indoor environment is greater than or equal to the preset concentration threshold value, the fresh air device is started to ventilate the indoor environment. The predetermined concentration threshold may be 800-1000 PPM, such as 800PPM, 900PPM, or 1000 PPM.
The controller may be further configured to activate the fresh air device based on the carbon dioxide concentration of the indoor environment further based on an air quality index of the outdoor environment to prevent contamination of the indoor environment. Specifically, when the carbon dioxide concentration of the indoor environment is greater than or equal to a preset concentration threshold value and the air quality index of the outdoor environment is less than or equal to a preset quality threshold value, the fresh air device is started. The air quality index may be determined according to GB 3095-2012. The predetermined quality threshold may be 50 to 100, such as 50, 70, 80 or 100.
In particular, the controller may be configured to activate the fresh air device further in dependence on the air humidity of the outdoor environment on the basis of the carbon dioxide concentration of the indoor environment or on the basis of the air quality index of the outdoor environment, to avoid discomfort to the user caused by too high humidity of the indoor environment. Specifically, when the air humidity of the outdoor environment is smaller than a preset humidity threshold value, a fresh air device is started; or when the air humidity of the outdoor environment is greater than or equal to the preset humidity threshold value and the indoor heat exchanger 140 is in a refrigerating state, the fresh air device is started, and the outdoor air is dehumidified through the indoor heat exchanger 140.
The preset humidity threshold value can be determined according to the indoor environment temperature when the carbon dioxide concentration of the indoor environment is greater than or equal to the preset concentration threshold value, so that the user is in a comfortable indoor environment at any time.
The controller may be configured to turn off the fresh air device and stop ventilating the indoor environment when the concentration of carbon dioxide in the indoor environment is less than a preset concentration threshold.
The distance between the fresh air outlet of the fresh air device and the air inlet of the first air supply fan 120 may be greater than the distance between the fresh air outlet of the fresh air device and the air inlet of the second air supply fan 130, that is, the flow path of the outdoor air entering the first air supply fan 120 is longer than the flow path of the outdoor air entering the second air supply fan 130.
In some embodiments, when the air humidity of the outdoor environment is greater than or equal to the preset humidity threshold and the indoor heat exchanger 140 is in the cooling state, the controller may be configured to operate the first air supply fan 120 at 90% to 100% of the rated rotation speed thereof and stop the second air supply fan 130 to extend the heat exchange path of the outdoor air, so as to thoroughly dehumidify the outdoor air through the indoor heat exchanger 140 while or after the fresh air device is started. In this embodiment, the first supply fan 120 may rotate at 90%, 95%, or 100% of its rated speed.
In some embodiments, in the case that the air humidity of the outdoor environment is less than the preset humidity threshold and the indoor heat exchanger 140 is in the working state, the controller may be configured to make the rotation speed of the first air supply fan 120 greater than the rotation speed of the second air supply fan 130 when the indoor environment temperature is closer to the user desired temperature than the outdoor environment temperature, so that the outdoor air is more sucked into the first air supply fan 120, and further the heat exchange path of the outdoor air is extended, the temperature of the air flow blown out by the first air outlet 112 and the second air outlet 113 is uniform, and the user is prevented from feeling discomfort due to the temperature difference between the outdoor air and the indoor air; when the outdoor ambient temperature is closer to the user's desired temperature than the indoor ambient temperature, the rotation speed of the first air supply fan 120 is made to be lower than that of the second air supply fan 130, so as to shorten the flow path of the outdoor air entering the room, maximize the amount of the sucked outdoor air, further shorten the working time of the fresh air impeller 152, and reduce energy consumption.
In the present invention, the rotation speeds of the first and second blower fans 120 and 130 may be adjusted at the same time when the fresh air device is turned on, or after the fresh air device is turned on for a certain period of time.
Indoor ambient temperature can be for user's body feeling temperature to carry out accurate ground temperature regulation to the outdoor air that introduces, and then improve user experience.
In some embodiments, the first blower fan 120, the second blower fan 130 and the fresh air device may be disposed in the casing 110 from top to bottom. The indoor unit 100 may further include an air guide cover plate 170, and the air guide cover plate 170 is disposed at a rear side of the rear wall of the cabinet 110 and communicates with a fresh air outlet of the fresh air device and a bottom area of the cabinet air inlet 111 to guide outdoor air to an upstream of the indoor heat exchanger 140.
In other embodiments, the first air supply fan 120, the second air supply fan 130 and the fresh air device may be disposed in the casing 110 from bottom to top. In this embodiment, the air guiding cover plate 170 may be disposed to communicate with the fresh air outlet of the fresh air device and the top area of the air inlet 111 of the casing.
In still other embodiments, the first supply fan 120, the second supply fan 130 and the fresh air device may be disposed in the casing 110 in sequence along a horizontal direction. In this embodiment, the air guiding cover plate 170 may be configured to communicate with the fresh air outlet of the fresh air device and the area of the housing inlet 111 near the second air supply fan 130.
In still other embodiments, a fresh air device may be disposed between the first and second supply fans 120, 130. In this embodiment, the indoor heat exchanger 140 may be composed of two parts connected in series or in parallel. The wind guide cover plate 170 may be set to communicate with the fresh air outlet of the fresh air device and the casing air inlet 111 at both sides of the fresh air outlet.
The technical solution of the present invention will be described in detail below by taking an example that the first air supply fan 120, the second air supply fan 130 and the fresh air device can be sequentially disposed in the casing 110 from top to bottom.
In some embodiments, whether the indoor ambient temperature is closer to the user desired temperature than the outdoor ambient temperature may be determined according to the operating state of the indoor heat exchanger 140, and the outdoor ambient temperature and the indoor ambient temperature.
When the indoor heat exchanger 140 is in a cooling state and the outdoor ambient temperature is greater than the indoor ambient temperature, or when the indoor heat exchanger 140 is in a heating state and the outdoor ambient temperature is less than the indoor ambient temperature, the indoor ambient temperature is closer to the user-desired temperature than the outdoor ambient temperature; otherwise, the outdoor ambient temperature is closer to the user desired temperature than the indoor ambient temperature.
Under the condition that the air humidity of the outdoor environment is less than the preset humidity threshold value, when the indoor heat exchanger 140 is in a refrigerating state and the outdoor environment temperature is greater than the indoor environment temperature, the rotating speed of the first air supply fan 120 can be 90% -100% of the rated rotating speed, and the rotating speed of the second air supply fan 130 can be 30% -40% of the rated rotating speed, so that more outdoor air is sucked into the first air supply fan 120, the air flow temperature blown out by the first air outlet 112 and the second air outlet 113 is uniform, meanwhile, the indoor heat exchanger 140 is prevented from frosting, more cold air is blown out through the first air outlet 112, and by utilizing the characteristic that the cold air sinks, the temperature of the indoor environment is more uniform in the vertical direction, and the refrigerating efficiency is improved. For example, the rotation speed of the first blower fan 120 may be 90% of the rated rotation speed, and the rotation speed of the second blower fan 130 may be 40% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 100% of the rated rotation speed, and the rotation speed of the second supply fan 130 may be 33% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 95% of the rated rotation speed, the rotation speed of the second supply fan 130 may be 30% of the rated rotation speed, and so on.
Under the condition that the air humidity of the outdoor environment is less than the preset humidity threshold, when the indoor heat exchanger 140 is in a refrigerating state and the outdoor environment temperature is less than or equal to the indoor environment temperature, the rotating speed of the first air supply fan 120 may be 30% -40% of the rated rotating speed, and the rotating speed of the second air supply fan 130 may be 90% -100% of the rated rotating speed, so as to shorten the flow path of the outdoor air entering the room, maximize the air volume of the sucked outdoor air, avoid frosting of the indoor heat exchanger 140, ensure the air volume of the cold air blown out from the first air outlet 112, and reduce the temperature difference of the environment in the chamber in the vertical direction. For example, the rotation speed of the first blower fan 120 may be 40% of the rated rotation speed, and the rotation speed of the second blower fan 130 may be 90% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 33% of the rated rotation speed, and the rotation speed of the second supply fan 130 may be 100% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 30% of the rated rotation speed, the rotation speed of the second supply fan 130 may be 95% of the rated rotation speed, and so on.
Under the condition that the air humidity of the outdoor environment is less than the preset humidity threshold value, when the indoor heat exchanger 140 is in a heating state and the outdoor environment temperature is greater than or equal to the indoor environment temperature, the rotating speed of the first air supply fan 120 can be 20% -30% of the rated rotating speed, and the rotating speed of the second air supply fan 130 can be 90% -100% of the rated rotating speed, so that the flowing path of the outdoor air entering the room is shortened, the air volume of the sucked outdoor air is maximized, more cold air is blown out through the second air outlet 113, and the temperature of the indoor environment is more uniform in the vertical direction by utilizing the upward floating characteristic of the hot air, and the heating efficiency is improved. For example, the rotation speed of the first blower fan 120 may be 30% of the rated rotation speed, and the rotation speed of the second blower fan 130 may be 90% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 25% of the rated rotation speed, and the rotation speed of the second supply fan 130 may be 100% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 20% of the rated rotation speed, the rotation speed of the second supply fan 130 may be 95% of the rated rotation speed, and so on.
Under the condition that the air humidity of the outdoor environment is less than the preset humidity threshold, when the indoor heat exchanger 140 is in a heating state and the outdoor environment temperature is less than the indoor environment temperature, the rotation speed of the first air supply fan 120 may be 90% -100% of the rated rotation speed, and the rotation speed of the second air supply fan 130 may be 20% -30% of the rated rotation speed, so as to reduce the temperature difference of the environment in the chamber in the vertical direction while making the temperatures of the air flows blown out by the first air outlet 112 and the second air outlet 113 uniform. For example, the rotation speed of the first blower fan 120 may be 90% of the rated rotation speed, and the rotation speed of the second blower fan 130 may be 30% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 100% of the rated rotation speed, and the rotation speed of the second supply fan 130 may be 25% of the rated rotation speed; the rotation speed of the first supply fan 120 may be 95% of the rated rotation speed, the rotation speed of the second supply fan 130 may be 20% of the rated rotation speed, and so on.
In some embodiments, when the temperature difference between the indoor and outdoor is small, the air humidity of the outdoor environment is less than the preset humidity threshold value, and the indoor heat exchanger 140 is not turned on for heat exchange, the controller may be configured to make the rotation speed of the first air supply fan 120 less than the rotation speed of the second air supply fan 130, so as to shorten the flow path of the outdoor air entering the room, maximize the amount of the sucked outdoor air, further shorten the working time of the fresh air impeller 152, and reduce energy consumption.
In the aforementioned embodiment in which the indoor heat exchanger 140 is not operated, the rotation speed of the first blower fan 120 may be 60% to 70% of the rated rotation speed, and the rotation speed of the second blower fan 130 may be 90% to 100% of the rated rotation speed, so as to shorten the flow path of the outdoor air into the indoor space, maximize the amount of the sucked outdoor air, and rapidly ventilate the indoor environment.
Fig. 2 is a flowchart of a control method for the air-conditioning indoor unit 100 according to an embodiment of the present invention. Referring to fig. 2, the control method for the air conditioning indoor unit 100 performed by the controller according to any one of the above embodiments of the present invention may include the steps of:
step S202: the air humidity of the outdoor environment is obtained.
Step S204: and judging whether the air humidity of the outdoor environment is greater than or equal to a preset humidity threshold value or not.
Step S206: under the condition that the air humidity of the outdoor environment is greater than or equal to the preset humidity threshold value and the indoor heat exchanger 140 is in a refrigerating state, the fresh air device is started to avoid discomfort of a user caused by overhigh humidity of the indoor environment.
Fig. 3 is a detailed flowchart of a control method for the air-conditioning indoor unit 100 according to a preferred embodiment of the present invention. Referring to fig. 3, the control method for the indoor unit 100 of an air conditioner of the present invention may include the following detailed steps:
step S302: and acquiring the carbon dioxide concentration of the indoor environment.
Step S304: and judging whether the carbon dioxide concentration of the indoor environment is greater than or equal to a preset concentration threshold value or not. If yes, go to step S306; if not, the process returns to step S302. In this step, the predetermined concentration threshold may be 800 to 1000 PPM.
Step S306: an air quality index of an outdoor environment is obtained. In this step, the air quality index may be determined according to GB 3095-2012.
Step S308: and judging whether the air quality index of the outdoor environment is less than or equal to a preset quality threshold value. If yes, go to step S310; if not, the process returns to step S302. In this step, the predetermined quality threshold may be 50 to 100.
Step S310: the air humidity of the outdoor environment is obtained.
Step S312: and judging whether the air humidity of the outdoor environment is greater than or equal to a preset humidity threshold value or not. If yes, go to step S314; if not, go to step S318. In this step, the preset humidity threshold may be determined according to the indoor environment temperature when the carbon dioxide concentration of the indoor environment is greater than or equal to the preset concentration threshold, so that the user is in a comfortable indoor environment at any time.
Step S314: and judging whether the indoor heat exchanger is in a refrigerating state or not. If yes, go to step S316; if not, the process returns to step S302.
Step S316: the fresh air device is started, the rotation speed of the first air supply fan 120 is adjusted to 90% -100% of the rated rotation speed, and the second air supply fan 130 is closed, so that the heat exchange path of the outdoor air is prolonged, and the outdoor air is thoroughly dehumidified through the indoor heat exchanger 140.
Step S318: it is judged whether the indoor heat exchanger 140 is operated. If not, go to step S320; if yes, go to step S322.
Step S320: the fresh air device is turned on, and the rotation speeds of the first air supply fan 120 and the second air supply fan 130 are adjusted to make the rotation speed of the first air supply fan 120 smaller than that of the second air supply fan 130. In this step, the rotation speed of the first blower fan 120 may be 60% to 70% of the rated rotation speed, and the rotation speed of the second blower fan 130 may be 90% to 100% of the rated rotation speed, so that the indoor environment is rapidly ventilated and ventilated comprehensively while the flow path of outdoor air into the indoor is shortened and the amount of outdoor air sucked is maximized. Step S338 is performed.
Step S322: and acquiring the indoor ambient temperature and the outdoor ambient temperature. In this step, the indoor ambient temperature may be a user sensible temperature to accurately adjust the temperature of the introduced outdoor air, thereby improving user experience.
Step S324: it is judged whether the indoor heat exchanger 140 is in a cooling state. If yes, go to step S326; if not, go to step S332.
Step S326: and judging whether the outdoor environment temperature is greater than the indoor environment temperature. If yes, go to step S328; if not, go to step S330.
Step S328: the fresh air device is turned on, and the rotation speeds of the first air supply fan 120 and the second air supply fan 130 are adjusted to make the rotation speed of the first air supply fan 120 greater than that of the second air supply fan 130. In this step, the rotation speed of the first air supply fan 120 may be 90% to 100% of the rated rotation speed, and the rotation speed of the second air supply fan 130 may be 30% to 40% of the rated rotation speed, so that more outdoor air is sucked into the first air supply fan 120, more cool air is blown out through the first air outlet 112 while the temperature of the air flow blown out through the first air outlet 112 and the second air outlet 113 is made uniform, and the temperature of the indoor environment is made more uniform in the vertical direction by the sinking characteristic of the cool air, and the cooling efficiency is improved. Step S338 is performed.
Step S330: the fresh air device is turned on, and the rotation speeds of the first air supply fan 120 and the second air supply fan 130 are adjusted to make the rotation speed of the first air supply fan 120 smaller than that of the second air supply fan 130. In this step, the rotation speed of the first blower fan 120 may be 30% to 40% of the rated rotation speed, and the rotation speed of the second blower fan 130 may be 90% to 100% of the rated rotation speed, so as to shorten the flow path of the outdoor air into the room, maximize the amount of the sucked outdoor air, and simultaneously ensure the amount of the cold air blown out from the first outlet 112, and reduce the temperature difference of the environment in the chamber in the vertical direction. Step S338 is performed.
Step S332: and judging whether the outdoor environment temperature is lower than the indoor environment temperature. If yes, go to step S334; if not, go to step S336.
Step S334: the fresh air device is turned on, and the rotation speeds of the first air supply fan 120 and the second air supply fan 130 are adjusted to make the rotation speed of the first air supply fan 120 greater than that of the second air supply fan 130. In this step, the rotation speed of the first air supply fan 120 may be 90% to 100% of the rated rotation speed, and the rotation speed of the second air supply fan 130 may be 20% to 30% of the rated rotation speed, so as to reduce the temperature difference of the environment in the chamber in the vertical direction while making the temperatures of the air flows blown out from the first air outlet 112 and the second air outlet 113 uniform. Step S338 is performed.
Step S336: the fresh air device is turned on, and the rotation speeds of the first air supply fan 120 and the second air supply fan 130 are adjusted to make the rotation speed of the first air supply fan 120 smaller than that of the second air supply fan 130. In this step, the rotation speed of the first air supply fan 120 may be 20% to 30% of the rated rotation speed, and the rotation speed of the second air supply fan 130 may be 90% to 100% of the rated rotation speed, so that more cold air is blown out through the second air outlet 113 while the flow path of outdoor air entering the room is shortened to maximize the amount of outdoor air sucked, and the temperature of the indoor environment is more uniform in the vertical direction by utilizing the floating characteristic of hot air, and the heating efficiency is improved. Step S338 is performed.
Step S338: and acquiring the carbon dioxide concentration of the indoor environment.
Step S340: and judging whether the concentration of the carbon dioxide in the indoor environment is less than a preset concentration threshold value. If yes, go to step S342; if not, the process returns to step S338.
Step S342: and closing the fresh air device to stop ventilation and air exchange for the indoor environment, returning to the step S302, and starting the next ventilation cycle.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (9)

1. A control method for an indoor unit of an air conditioner comprises an indoor heat exchanger and a fresh air device for guiding outdoor air to the upstream of the indoor heat exchanger; the control method is characterized by comprising the following steps:
acquiring the air humidity of the outdoor environment;
judging whether the air humidity is greater than or equal to a preset humidity threshold value or not;
starting the fresh air device under the condition that the air humidity is greater than or equal to the preset humidity threshold value and the indoor heat exchanger is in a refrigerating state; wherein the content of the first and second substances,
the indoor unit of the air conditioner further comprises a first air supply fan and a second air supply fan which are arranged at the downstream of the indoor heat exchanger, and the distance between a fresh air outlet of the fresh air device and a fan air inlet of the first air supply fan is larger than the distance between the fresh air outlet of the fresh air device and a fan air inlet of the second air supply fan; the control method further comprises the following steps:
acquiring outdoor environment temperature and indoor environment temperature under the condition that the air humidity is smaller than the preset humidity threshold value and the indoor heat exchanger works;
determining whether the indoor ambient temperature is closer to a user desired temperature than the outdoor ambient temperature;
if so, starting the fresh air device, and adjusting the rotating speeds of the first air supply fan and the second air supply fan to enable the rotating speed of the first air supply fan to be greater than that of the second air supply fan;
if not, the fresh air device is started, and the rotating speeds of the first air supply fan and the second air supply fan are adjusted to enable the rotating speed of the first air supply fan to be smaller than that of the second air supply fan.
2. The control method according to claim 1, wherein in a case where the air humidity is equal to or greater than a preset humidity threshold and the indoor heat exchanger is in a cooling state, the method further comprises:
and adjusting the rotating speed of the first air supply fan to be 90% -100% of the rated rotating speed, and closing the second air supply fan.
3. The control method of claim 1, wherein the step of determining whether the indoor ambient temperature is closer to a user desired temperature than the outdoor ambient temperature comprises:
under the condition that the indoor heat exchanger is in a refrigerating state, judging whether the outdoor environment temperature is greater than the indoor environment temperature, if so, comparing the indoor environment temperature with the outdoor environment temperature, and enabling the indoor environment temperature to be closer to the expected temperature of a user;
and under the condition that the indoor heat exchanger is in a heating state, judging whether the outdoor environment temperature is lower than the indoor environment temperature, if so, comparing the indoor environment temperature with the outdoor environment temperature to be closer to the expected temperature of the user.
4. The control method according to claim 3, wherein the first air supply fan is disposed above the second air supply fan,
under the condition that the indoor heat exchanger is in a refrigerating state and the outdoor environment temperature is higher than the indoor environment temperature, the rotating speed of the first air supply fan is 90% -100% of the rated rotating speed, and the rotating speed of the second air supply fan is 30% -40% of the rated rotating speed; and/or
Under the condition that the indoor heat exchanger is in a refrigerating state and the outdoor environment temperature is less than or equal to the indoor environment temperature, the rotating speed of the first air supply fan is 30% -40% of the rated rotating speed, and the rotating speed of the second air supply fan is 90% -100% of the rated rotating speed; and/or
Under the condition that the indoor heat exchanger is in a heating state and the outdoor environment temperature is lower than the indoor environment temperature, the rotating speed of the first air supply fan is 90-100% of the rated rotating speed, and the rotating speed of the second air supply fan is 20-30% of the rated rotating speed; and/or
And under the condition that the indoor heat exchanger is in a heating state and the outdoor environment temperature is more than or equal to the indoor environment temperature, the rotating speed of the first air supply fan is 20-30% of the rated rotating speed, and the rotating speed of the second air supply fan is 90-100% of the rated rotating speed.
5. The control method according to claim 1, characterized by further comprising:
and under the condition that the air humidity is smaller than the preset humidity threshold value and the indoor heat exchanger does not work, starting the fresh air device, and adjusting the rotating speeds of the first air supply fan and the second air supply fan to enable the rotating speed of the first air supply fan to be smaller than that of the second air supply fan.
6. The control method according to claim 5,
and under the condition that the air humidity is less than the preset humidity threshold value and the indoor heat exchanger does not work, the rotating speed of the first air supply fan is 60% -70% of the rated rotating speed, and the rotating speed of the second air supply fan is 90% -100% of the rated rotating speed.
7. The control method according to claim 1, characterized by further comprising:
acquiring the carbon dioxide concentration of the indoor environment;
judging whether the concentration of the carbon dioxide is greater than or equal to a preset concentration threshold value;
if yes, the fresh air device is started.
8. The control method according to claim 7, characterized by further comprising:
acquiring an air quality index of an outdoor environment;
judging whether the air quality index is less than or equal to a preset quality threshold value or not;
if yes, starting the fresh air device; and/or
After the fresh air device is started, acquiring the concentration of carbon dioxide in the indoor environment;
judging whether the concentration of the carbon dioxide is smaller than the preset concentration threshold value;
if yes, the fresh air device is closed.
9. An indoor unit of an air conditioner comprising an indoor heat exchanger, a fresh air device for guiding outdoor air to the upstream of the indoor heat exchanger, and a controller, wherein the controller is configured to execute the control method according to any one of claims 1 to 8.
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113757954B (en) * 2021-09-07 2022-07-19 重庆海尔空调器有限公司 Control method for air conditioner and air conditioner
CN114061080B (en) * 2021-10-28 2023-06-23 青岛海尔空调器有限总公司 Fresh air control method and device, electronic equipment and storage medium

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2408385Y (en) * 1999-01-29 2000-11-29 大金工业株式会社 Motor driver and air conditioner with said device
JP3849716B1 (en) * 2006-04-07 2006-11-22 東陶機器株式会社 Mold prevention device
CN201525381U (en) * 2009-10-22 2010-07-14 同济大学 Controllable fresh air system of subway vehicle
CN103017288A (en) * 2012-12-31 2013-04-03 深圳市中兴新地通信器材有限公司 Intelligent fresh air system
CN103604164A (en) * 2013-11-08 2014-02-26 南京东创系统工程有限公司 Ventilation air conditioning unit
CN205481475U (en) * 2016-01-05 2016-08-17 中兴通讯股份有限公司 Modularization refrigeration plant
US9890981B2 (en) * 2013-06-10 2018-02-13 Samsung Electronics Co., Ltd. Air conditioner to control uniform temperature of air flow blown by a plurality of indoor fans, and method of controlling the same
CN207146779U (en) * 2017-08-30 2018-03-27 段晔 A kind of self-regulated pressure-fired VMC for being capable of energy-saving and purifying
WO2018117352A1 (en) * 2016-12-21 2018-06-28 Samsung Electronics Co., Ltd. Air conditioner and control method thereof
CN109084369A (en) * 2018-08-06 2018-12-25 广东美的制冷设备有限公司 air conditioner
CN109237617A (en) * 2018-11-06 2019-01-18 珠海格力电器股份有限公司 A kind of air conditioner indoor unit, air-conditioning device and air conditioning exhausting control method
CN109307358A (en) * 2018-10-10 2019-02-05 国安瑞（北京）科技有限公司 A kind of air-conditioner control system and method
CN208765075U (en) * 2018-07-09 2019-04-19 青岛海尔空调器有限总公司 A kind of fresh air cabinet type air conditioner indoor machine
CN208765063U (en) * 2018-07-09 2019-04-19 青岛海尔空调器有限总公司 A kind of aeration device and its inletting fresh air air conditioner indoor unit
CN209042705U (en) * 2018-08-06 2019-06-28 广东美的制冷设备有限公司 Air conditioner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7612996B2 (en) * 2003-09-08 2009-11-03 Xyratex Technology Limited Temperature control device, disk drive unit test apparatus, and a method of testing or operating a plurality of disk drive units
US11193677B2 (en) * 2015-07-21 2021-12-07 Samsung Electronics Co., Ltd. Air conditioner and control method thereof
CN106369692A (en) * 2016-10-31 2017-02-01 佛山市顺德区美的电子科技有限公司 Mobile type air conditioner
KR101825873B1 (en) * 2017-02-08 2018-02-07 주식회사 삼화에이스 Heat pipe air conditioning plant using by-pass
WO2018207047A2 (en) * 2017-05-09 2018-11-15 Active Home Ltd. Method and system for heating water
CN108266867B (en) * 2018-01-11 2020-02-04 广东美的制冷设备有限公司 Control method of air conditioner and air conditioner
CN109855183A (en) * 2019-03-04 2019-06-07 青岛海尔空调器有限总公司 Air conditioner room unit with fresh air component

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2408385Y (en) * 1999-01-29 2000-11-29 大金工业株式会社 Motor driver and air conditioner with said device
JP3849716B1 (en) * 2006-04-07 2006-11-22 東陶機器株式会社 Mold prevention device
CN201525381U (en) * 2009-10-22 2010-07-14 同济大学 Controllable fresh air system of subway vehicle
CN103017288A (en) * 2012-12-31 2013-04-03 深圳市中兴新地通信器材有限公司 Intelligent fresh air system
US9890981B2 (en) * 2013-06-10 2018-02-13 Samsung Electronics Co., Ltd. Air conditioner to control uniform temperature of air flow blown by a plurality of indoor fans, and method of controlling the same
CN103604164A (en) * 2013-11-08 2014-02-26 南京东创系统工程有限公司 Ventilation air conditioning unit
CN205481475U (en) * 2016-01-05 2016-08-17 中兴通讯股份有限公司 Modularization refrigeration plant
WO2018117352A1 (en) * 2016-12-21 2018-06-28 Samsung Electronics Co., Ltd. Air conditioner and control method thereof
CN207146779U (en) * 2017-08-30 2018-03-27 段晔 A kind of self-regulated pressure-fired VMC for being capable of energy-saving and purifying
CN208765075U (en) * 2018-07-09 2019-04-19 青岛海尔空调器有限总公司 A kind of fresh air cabinet type air conditioner indoor machine
CN208765063U (en) * 2018-07-09 2019-04-19 青岛海尔空调器有限总公司 A kind of aeration device and its inletting fresh air air conditioner indoor unit
CN109084369A (en) * 2018-08-06 2018-12-25 广东美的制冷设备有限公司 air conditioner
CN209042705U (en) * 2018-08-06 2019-06-28 广东美的制冷设备有限公司 Air conditioner
CN109307358A (en) * 2018-10-10 2019-02-05 国安瑞（北京）科技有限公司 A kind of air-conditioner control system and method
CN109237617A (en) * 2018-11-06 2019-01-18 珠海格力电器股份有限公司 A kind of air conditioner indoor unit, air-conditioning device and air conditioning exhausting control method

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