CN114777256A - Air conditioner fresh air assembly, control method thereof and air conditioner system - Google Patents

Air conditioner fresh air assembly, control method thereof and air conditioner system Download PDF

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Publication number
CN114777256A
CN114777256A CN202210373442.5A CN202210373442A CN114777256A CN 114777256 A CN114777256 A CN 114777256A CN 202210373442 A CN202210373442 A CN 202210373442A CN 114777256 A CN114777256 A CN 114777256A
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China
Prior art keywords
air
fresh air
fresh
assembly
air conditioner
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Granted
Application number
CN202210373442.5A
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Chinese (zh)
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CN114777256B (en
Inventor
骆妍
罗文君
张利
丘晓宏
林德贤
高玉平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202210373442.5A priority Critical patent/CN114777256B/en
Publication of CN114777256A publication Critical patent/CN114777256A/en
Application granted granted Critical
Publication of CN114777256B publication Critical patent/CN114777256B/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
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
    • 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
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • 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
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application provides an air conditioner fresh air assembly, a control method thereof and an air conditioner system. The air conditioner fresh air assembly comprises an air conditioner body; the fresh air pipeline is arranged in the air conditioner body and is communicated with two sides of the air conditioner body; the fresh air pipeline is provided with at least one fan assembly, and the air flow in the fresh air pipeline can be pressurized. This application sets up the new trend pipeline in this internal fresh air pipeline of air conditioner to add the fan subassembly in the new trend pipeline, make the air pressure increase in the new trend pipeline, even under the aperture that crosses the tube hole does not change the condition, also can guarantee the amount of wind of new trend, thereby can purify indoor air rapidly, improve user experience and feel.

Description

Air conditioner fresh air assembly, control method thereof and air conditioner system
Technical Field
The application belongs to the technical field of air conditioning systems, and particularly relates to an air conditioner fresh air assembly, a control method of the air conditioner fresh air assembly and an air conditioning system.
Background
The existing fresh air conditioners in the market at present have two types: the one is two-way fresh air conditioner, has two fresh air pipes: introducing fresh air from the outdoor to the indoor, and exhausting indoor turbid air to the outdoor; the other type is a one-way fresh air conditioner, which is provided with only one fresh air pipe: fresh air is introduced only from the outside to the inside. The existing fresh air conditioner has the following problems: in order to ensure the fresh air volume, when a user installs a fresh air conditioner at home, the required pipe holes are larger than the normal pipe holes, and the installation cost needs to be additionally increased; if the pipe hole is not enlarged, the pipe diameter of the fresh air pipe must be reduced, so that the fresh air quantity is small, the indoor air purification effect is poor, and the requirement of a user cannot be met.
Disclosure of Invention
Therefore, the air conditioner fresh air assembly, the control method thereof and the air conditioner system can solve the problems that fresh air volume is small and indoor air purification effect is poor in the prior art.
In order to solve the above problem, the present application provides an air conditioner new trend subassembly, includes:
an air conditioner body;
the fresh air pipeline is arranged in the air conditioner body and is communicated with two sides of the air conditioner body;
the fresh air pipeline is internally provided with at least one fan assembly which can pressurize the air flow in the fresh air pipeline.
Optionally, two fan assemblies connected in series are arranged in the fresh air pipeline, and the operation conditions of the two fan assemblies can be adjusted according to the air parameters of the air outlet side of the fresh air pipeline.
Optionally, the air conditioner new trend subassembly still includes the sensor, the sensor is established on the air-out side, can detect the air parameter of air-out side.
Optionally, the sensor comprises a carbon dioxide concentration sensor.
Optionally, an air guide wheel is further arranged in the fresh air pipeline, the air guide wheel is arranged between the two fan assemblies, and the outlet air of one fan assembly can be collected at the air inlet center of the other fan assembly.
Optionally, the air guide wheel comprises a rim and at least two air guide plates, one end of each air guide plate is uniformly distributed and connected to the inner circumferential surface of the rim, and the other end of each air guide plate is connected to the center of the rim; the air deflector is obliquely arranged relative to the axis of the wheel rim.
According to another aspect of the present application, there is provided a control method of the air conditioner fresh air assembly, including:
the air conditioning system starts a fresh air function and simultaneously starts a fan assembly;
and detecting a carbon dioxide concentration value in the air at the air outlet side of the fresh air pipeline, and starting another fan assembly if the carbon dioxide concentration value exceeds a preset value.
According to still another aspect of the present application, an air conditioning system is provided, which includes the air conditioning fresh air component as described above or the air conditioning fresh air component operating according to the control method as described above.
Optionally, an air duct assembly is further arranged in the air conditioner body and is arranged above the fresh air duct.
Optionally, the air duct assembly includes an air conditioning assembly in which a refrigerant circulates.
The application provides a pair of air conditioner new trend subassembly includes: an air conditioner body; the fresh air pipeline is arranged in the air conditioner body and is communicated with two sides of the air conditioner body; the fresh air pipeline is internally provided with at least one fan assembly which can pressurize the air flow in the fresh air pipeline.
This application sets up the new trend pipeline at this internal fresh air pipeline that sets up of air conditioner to add the fan subassembly in the new trend pipeline, make the air pressure increase in the new trend pipeline, even under the aperture that crosses the pipe hole does not change the condition, also can guarantee the amount of wind of new trend, thereby can purify indoor air rapidly, improve user experience and feel.
Drawings
Fig. 1 is an exploded view of an air conditioning system according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of an air conditioning system according to an embodiment of the present application;
FIG. 3 is an exploded view of a fresh air component in accordance with an embodiment of the present application;
fig. 4 is a schematic structural view of an air guide wheel according to an embodiment of the present disclosure;
fig. 5 is a logic flow diagram of a fresh air component according to an embodiment of the present application.
The reference numbers are given as:
1. an air outlet assembly; 2. an air duct assembly; 3. an air intake assembly; 4. a fresh air component; 41. a filter screen; 42. a first motor; 43. a first fan blade; 44. an air guide wheel; 441. a rim; 442. an air deflector; 45. a second fan blade; 46. a second motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1 to 4 in combination, according to an embodiment of the present application, an air conditioner fresh air assembly 4 includes:
an air conditioner body;
the fresh air pipeline is arranged in the air conditioner body and is communicated with two sides of the air conditioner body;
the fresh air pipeline is internally provided with at least one fan assembly which can pressurize the air flow in the fresh air pipeline.
This application sets up the new trend pipeline in this internal fresh air pipeline of air conditioner to add the fan subassembly in the new trend pipeline, make the air pressure increase in the new trend pipeline, even under the aperture that crosses the tube hole does not change the condition, also can guarantee the amount of wind of new trend, thereby can purify indoor air rapidly, improve user experience and feel.
In some embodiments, two fan assemblies connected in series are arranged in the fresh air duct, and the operation conditions of the two fan assemblies can be adjusted according to the air parameters of the air outlet side of the fresh air duct.
As shown in figures 2 and 3, two fan assemblies which are connected in series are arranged in the fresh air pipeline, or the number of the fan assemblies is changed according to use requirements, the operation number of the fan assemblies can be regulated, and the problem that the aperture of the fresh air pipeline limits the fresh air volume to be small due to the fact that the pipe holes are too small can be solved. The use requirement can be defined by referring to the air parameters of the air outlet side.
In some embodiments, the air conditioner fresh air component 4 further comprises a sensor, and the sensor is arranged on the air outlet side and can detect the air parameter of the air outlet side.
A sensor is arranged on the air outlet side, and air parameters such as temperature, humidity or carbon dioxide content and the like on the air outlet side are detected through the sensor, so that the operation condition of the fan assembly is automatically controlled.
In some embodiments, the sensor comprises a carbon dioxide concentration sensor.
Can only detect the air-out side and be indoor carbon dioxide concentration promptly, regulate and control the fan subassembly, improve the travelling comfort of indoor air.
In some embodiments, an air guide wheel 44 is further disposed in the fresh air duct, and the air guide wheel 44 is disposed between the two fan assemblies and can collect the outlet air of one fan assembly at the air inlet center of the other fan assembly.
In order to pressurize the airflow in the fresh air pipeline, the inducer 44 is arranged in the fresh air pipeline to collect the outlet air of one fan assembly, so that the air is ensured to be gathered towards the rotating center of the next fan assembly, the air is prevented from being scattered, the internal pressure intensity can be increased, and the suction force is increased.
In some embodiments, the wind guide wheel 44 includes a rim 441 and at least two wind guide plates 442, where one end of each wind guide plate 442 is uniformly distributed and connected to the inner circumferential surface of the rim 441, and the other end of each wind guide plate 442 is connected to the center of the rim 441; the air deflector 442 is disposed obliquely with respect to the axis of the rim 441.
The wind deflector 442 is disposed in the rim 441, and the wind deflector 442 is designed to be inclined, so that wind blown out from one fan assembly can be gathered toward the center.
According to another aspect of the present application, there is provided a control method of the air conditioner fresh air assembly 4, including:
the air conditioning system starts a fresh air function and simultaneously starts a fan assembly;
and detecting a carbon dioxide concentration value in the air at the air outlet side of the fresh air pipeline, and starting another fan assembly if the carbon dioxide concentration value exceeds a preset value.
According to a further aspect of the present application, an air conditioning system is provided, which includes the air conditioning fresh air module 4 as described above or the air conditioning fresh air module 4 operating according to the control method as described above.
In some embodiments, an air duct assembly 2 is further disposed in the air conditioner body, and the air duct assembly 2 is disposed above the fresh air duct. Optionally, the air duct assembly 2 includes an air conditioning assembly through which a refrigerant circulates.
The air duct component 2 in the air conditioner body completes the refrigeration or heating process of the air conditioning system, and is combined with a fresh air pipeline, so that the indoor air purification speed can be increased in the traditional installation structure, and the purification purpose can be quickly achieved.
Specifically, the air conditioning system of the present application, as shown in fig. 1, is mainly divided into four major components: the air inlet component 3, the air duct component 2, the air outlet component 1 and the fresh air component 4 are arranged in the air duct; wherein, the air inlet subassembly 3, wind channel subassembly 2, the combination of air-out subassembly 1 can accomplish the refrigeration or the heating function of traditional air conditioner.
The new trend subassembly 4 of this application is located the lower part of wind channel subassembly 2, and new trend subassembly 4 comprises two fan subassemblies and inducer 44, and inducer 44 establishes between two fan subassemblies. The fan assembly comprises a motor and fan blades, for example, a first motor 42 is arranged in the fresh air pipeline, and a first fan blade 43 is arranged on the first motor 42; the other fan component has the same composition and installation mode; and the air inlet and the air outlet of the fresh air pipeline are both provided with grids.
A filter screen 41 may be further provided at the air inlet to purify the air introduced into the room.
The air guide wheel 44 located between the two fan assemblies guides air blown out from one fan assembly to ensure that the air is gathered towards the rotation center of the motor and prevent the air from being scattered, and can increase internal pressure and increase suction force.
The purification mode is as follows: when the fresh air mode of the air conditioner is started, the first motor 42 is started to drive the first fan blades 43 to rotate, outdoor air enters from the air inlet, passes through the filter screen 41 and enters the fresh air pipeline, and whether the second motor 46 in the other fan assembly is started or not depends on indoor CO2Is rich inAnd the air enters another fan component after passing through the air guide wheel 44 and is discharged from the air outlet of the fresh air pipeline.
The fresh air inlet air volume has two states, and the air conditioner starts the fresh air function by combining the functional logic diagram of fig. 5, the first motor 42 is started to drive the first fan blade 43 to rotate, outdoor air is introduced into the fresh air component 4 by changing the indoor and outdoor pressure, and finally the air is blown out from the air outlet. Sensor on air outlet assembly 1 detects CO in indoor air2When CO is present in the air2When the concentration of the air is more than or equal to a preset value, for example, 50%, the air conditioner receives a signal and starts the second motor 46, the pressure inside the fresh air assembly 4 is higher than that of a single fan due to the action of the two fans, the suction force is increased, the air inlet speed is increased under the condition of the same air inlet cross section area, the air quantity introduced from the outdoor is increased, the finally blown fresh air is increased, and the indoor air purification speed is accelerated; when CO is in the air2When the concentration of the second electric motor is less than 50%, the air conditioner receives the signal, the second electric motor 46 is not started, the first electric motor 42 keeps the starting state, and the indoor air continues to be purified.
The first motor 42 and the second motor 46 operate simultaneously, which significantly plays a role in rapidly purifying indoor air. The first motor 42 and the second motor 46 may also be provided in a double-headed motor configuration.
It will be readily appreciated by those skilled in the art that the above embodiments may be freely combined, superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (10)

1. An air conditioner new trend subassembly which characterized in that includes:
an air conditioner body;
the fresh air pipeline is arranged in the air conditioner body and is communicated with two sides of the air conditioner body;
the fresh air pipeline is internally provided with at least one fan assembly which can pressurize the air flow in the fresh air pipeline.
2. An air conditioner fresh air assembly according to claim 1, wherein two fan assemblies are arranged in series in the fresh air duct, and the operation conditions of the two fan assemblies can be adjusted according to the air parameters of the air outlet side of the fresh air duct.
3. The fresh air supply component of claim 2 further comprising a sensor disposed on the air outlet side for detecting an air parameter of the air outlet side.
4. An air conditioning fresh air assembly as claimed in claim 3 wherein the sensor comprises a carbon dioxide concentration sensor.
5. The fresh air component of an air conditioner according to any one of claims 2 to 4, characterized in that an air guide wheel (44) is further arranged in the fresh air pipeline, the air guide wheel (44) is arranged between the two fan components, and the outlet air of one fan component can be collected at the air inlet center of the other fan component.
6. The fresh air assembly of the air conditioner as claimed in claim 5, wherein the wind guide wheel (44) comprises a rim (441) and at least two wind guide plates (442), one end of each wind guide plate (442) is uniformly distributed and connected to the inner circumferential surface of the rim (441), and the other end of each wind guide plate (442) is connected to the center of the rim (441); the air deflector (442) is arranged obliquely relative to the axis of the rim (441).
7. A method for controlling a fresh air component of an air conditioner according to any one of claims 4 to 6, characterized by comprising the following steps:
the air conditioning system starts a fresh air function and simultaneously starts a fan assembly;
and detecting a carbon dioxide concentration value in the air at the air outlet side of the fresh air pipeline, and starting another fan assembly if the carbon dioxide concentration value exceeds a preset value.
8. An air conditioning system comprising an air conditioning fresh air module as claimed in any one of claims 1 to 6 or an air conditioning fresh air module operating according to the control method as claimed in claim 7.
9. The air conditioning system according to claim 8, wherein an air duct assembly (2) is further disposed in the air conditioner body, and the air duct assembly (2) is disposed above the fresh air duct.
10. Air conditioning system according to claim 9, characterized in that said air duct assembly (2) comprises an air conditioning assembly in which a refrigerant circulates.
CN202210373442.5A 2022-04-11 2022-04-11 Fresh air component of air conditioner, control method of fresh air component and air conditioning system Active CN114777256B (en)

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CN114777256B CN114777256B (en) 2023-06-30

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110164384A1 (en) * 2010-01-06 2011-07-07 Sun Microsystems, Inc. Tandem fan assembly with airflow-straightening heat exchanger
CN206222458U (en) * 2016-09-30 2017-06-06 芜湖美智空调设备有限公司 Cabinet air-conditioner and air-conditioner
CN108488920A (en) * 2018-04-26 2018-09-04 广东美的制冷设备有限公司 Air conditioner and its control method, device
CN110848797A (en) * 2019-11-18 2020-02-28 海信（山东）空调有限公司 Indoor unit of air conditioner
CN211290298U (en) * 2019-08-16 2020-08-18 Tcl空调器(中山)有限公司 Fresh air conditioning system
CN111853949A (en) * 2020-08-13 2020-10-30 海信（山东）空调有限公司 Air conditioner indoor unit and control method of fresh air function of air conditioner
CN214249901U (en) * 2020-09-29 2021-09-21 青岛海尔空调器有限总公司 Fresh air conditioner and cabinet type fresh air conditioner
CN215597472U (en) * 2021-06-02 2022-01-21 青岛海尔空调器有限总公司 Air conditioner indoor unit and air conditioner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110164384A1 (en) * 2010-01-06 2011-07-07 Sun Microsystems, Inc. Tandem fan assembly with airflow-straightening heat exchanger
CN206222458U (en) * 2016-09-30 2017-06-06 芜湖美智空调设备有限公司 Cabinet air-conditioner and air-conditioner
CN108488920A (en) * 2018-04-26 2018-09-04 广东美的制冷设备有限公司 Air conditioner and its control method, device
CN211290298U (en) * 2019-08-16 2020-08-18 Tcl空调器(中山)有限公司 Fresh air conditioning system
CN110848797A (en) * 2019-11-18 2020-02-28 海信（山东）空调有限公司 Indoor unit of air conditioner
CN111853949A (en) * 2020-08-13 2020-10-30 海信（山东）空调有限公司 Air conditioner indoor unit and control method of fresh air function of air conditioner
CN214249901U (en) * 2020-09-29 2021-09-21 青岛海尔空调器有限总公司 Fresh air conditioner and cabinet type fresh air conditioner
CN215597472U (en) * 2021-06-02 2022-01-21 青岛海尔空调器有限总公司 Air conditioner indoor unit and air conditioner

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