WO2019223473A1 - Unité intérieure de climatiseur et procédé de commande associé - Google Patents

Unité intérieure de climatiseur et procédé de commande associé Download PDF

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Publication number
WO2019223473A1
WO2019223473A1 PCT/CN2019/083505 CN2019083505W WO2019223473A1 WO 2019223473 A1 WO2019223473 A1 WO 2019223473A1 CN 2019083505 W CN2019083505 W CN 2019083505W WO 2019223473 A1 WO2019223473 A1 WO 2019223473A1
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WIPO (PCT)
Prior art keywords
air
indoor unit
air conditioner
conditioner indoor
fan
Prior art date
Application number
PCT/CN2019/083505
Other languages
English (en)
Chinese (zh)
Inventor
刘光朋
李英舒
于尊才
Original Assignee
青岛海尔空调器有限总公司
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Application filed by 青岛海尔空调器有限总公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2019223473A1 publication Critical patent/WO2019223473A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0035—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
    • 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
    • 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
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • 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
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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

Definitions

  • the invention relates to the technical field of air conditioning, in particular to an air conditioner indoor unit and a control method thereof.
  • the existing air-conditioning usually has a rapid cooling / heating function.
  • the compressor of the air conditioner works at a higher frequency to quickly increase the cooling capacity / heating capacity.
  • the indoor unit of the air conditioner operates at high speed and high air volume to return the cold / hot air after heat exchange to the room, thereby achieving indoor Fast temperature adjustment.
  • the rapid cooling / heating function of the air conditioner mentioned above solves the user's rapid cooling / heating needs to a certain extent, this air conditioner also inevitably has the following problems: the performance of traditional air conditioners (that is, the cooling / heating effect) and the wind Noise is a non-adjustable and contradictory solution.
  • the air conditioner increases the air supply volume to increase the cooling / heating effect. As the air supply volume increases, the noise also increases. However, if the noise reduction index is met, the air conditioner The performance will be limited to some extent.
  • the present invention provides an air conditioner indoor unit including a body, and the body is provided with heat.
  • the air conditioner indoor unit further includes a supplementary air module
  • the supplementary air module includes a casing
  • the casing is provided with an air inlet pipe communicating with the outdoor
  • the casing is provided with an induced draft fan and a connection Pipe
  • the first end of the connection pipe is connected to the exhaust port of the induced draft fan
  • the second end of the connection pipe extends to the air inlet side of the heat exchanger
  • the air supply module is arranged to be Driven by the induced draft fan, outdoor fresh air is introduced into the casing through the air inlet pipe, flows through the induced draft fan and the connection pipe, and is discharged to the heat exchanger through the second end of the connection pipe.
  • An air inlet side of the connection pipe; a drainage plate is provided on the connection pipe, and the drainage plate can introduce nearby air into the connection pipe when the induced draft fan works.
  • the cross-section of the drainage plate is arc-shaped, and the arc-shaped shape can draw nearby air to the direction of the second end of the connection pipe.
  • an air inlet is further provided on the casing near the drainage plate.
  • the housing is provided with a first through hole
  • the body is provided with a second through hole
  • the second end of the connection pipe passes through the first through hole.
  • the second through hole extends to the air inlet side of the heat exchanger.
  • the connecting pipe has a curved surface section.
  • the second end of the connection pipe has a bell mouth structure.
  • an end of the air inlet pipe connected to the casing has a bell mouth structure.
  • the induced fan is a centrifugal fan.
  • the air-conditioning indoor unit is a wall-mounted air-conditioning indoor unit, and the air supplement module is detachably disposed on the back of the body.
  • the present invention also provides a control method of an air conditioner indoor unit.
  • the control method includes:
  • the air-conditioning indoor unit includes a body, and a heat exchanger and a blower are provided in the body.
  • the air-conditioning indoor unit further includes an air supply module, and the air supply module includes a casing.
  • the casing is provided with an air inlet pipe communicating with the outdoor.
  • the casing is provided with an induced draft fan and a connecting pipe. The first end of the connecting pipe is connected to the exhaust port of the induced draft fan, and the second end of the connecting pipe extends to the heat exchanger.
  • the supplementary air module On the air inlet side, the supplementary air module is set to be able to introduce outdoor fresh air into the housing through the air inlet pipe and flow through the induced air fan and the connection pipe, and then discharge it to the heat exchanger through the second end of the connection pipe.
  • the present invention can significantly reduce the noise of the air-conditioning indoor unit when it is operated at a large air volume.
  • the performance of the air-conditioning indoor unit depends on the heat exchange efficiency, and the heat exchange efficiency is directly related to the air supply volume.
  • the supplementary air module of the present invention can directly send indoor air into the heat exchanger to participate in the cycle, which reduces the air-conditioning indoor The working pressure of the blower inside the machine.
  • the air-conditioned indoor unit can share the amount of air delivered at the same time by the induced fan and the blower. Therefore, under the premise of providing the same air supply volume, the noise generated when the air blower in the air conditioner indoor unit is operated at high speed is greatly reduced, and the operation performance of the air conditioner is unchanged or even improved.
  • the air conditioner indoor unit can also introduce outdoor fresh air during operation, ensure the oxygen content of the indoor air, and solve many problems such as poor indoor air turbidity. That is to say, the present invention solves the problem of high noise in the prior art when the air conditioner is operated at a large air volume, and has a simple structure and a significant effect, which is suitable for large-scale popularization and use.
  • FIG. 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to a first embodiment of the present invention
  • FIG. 2 is an exploded schematic view of a wall-mounted air conditioner indoor unit according to a first embodiment of the present invention
  • FIG. 3 is a cross-sectional view of FIG. 1 at A-A;
  • FIG. 4 is a working principle diagram of a wall-mounted air conditioner indoor unit according to a first embodiment of the present invention, which shows a suction process of a draft fan;
  • FIG. 5 is a working principle diagram of a wall-mounted air-conditioning indoor unit according to a first embodiment of the present invention, which illustrates a process of supplementing air of the wall-mounted air-conditioning indoor unit;
  • FIG. 6 is an exploded view of a wall-mounted air conditioner indoor unit in a second embodiment of the present invention.
  • FIG. 7 is a working principle diagram of a wall-mounted air conditioner indoor unit in a second embodiment of the present invention, which shows the suction process of a draft fan;
  • FIG. 8 is a flowchart of a method for controlling a wall-mounted air conditioner indoor unit according to the present invention.
  • the terms “installation”, “connected”, and “connected” should be understood in a broad sense. For example, they may be fixed connections or It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • installation should be understood in a broad sense. For example, they may be fixed connections or It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • the specific meanings of the above terms in the present invention can be understood according to specific situations.
  • the present invention proposes a wall-mounted air conditioner indoor unit, so as to reduce the noise of the air conditioner indoor unit and increase the amount of induced air, thereby breaking the traditional air conditioner indoor unit.
  • the deadlock where air volume and noise reduction cannot be achieved at the same time improves the user experience.
  • FIGS. 1 to 5 are schematic structural diagram of a wall-mounted air-conditioning indoor unit according to the first embodiment of the present invention
  • FIG. 2 is an exploded schematic view of the wall-mounted air-conditioning indoor unit according to the first embodiment of the present invention
  • Sectional view at AA FIG. 4 is a working principle diagram of the wall-mounted air conditioner indoor unit in the first embodiment of the present invention, which shows the suction process of the induced draft fan
  • FIG. 5 is the first embodiment of the present invention.
  • the working principle diagram of the wall-mounted air-conditioning indoor unit shows the air supply process of the wall-mounted air-conditioning indoor unit.
  • the wall-mounted air conditioner indoor unit (hereinafter referred to as an indoor unit) of the present invention mainly includes a main body 1 and an air supply module 2 installed outside the main body 1. An air return port 11 and an air supply port are provided in the main body 1. 12. Heat exchanger 13, cross-flow fan 14 (ie, blower), control module (not shown in the figure), and the like.
  • the air supply module 2 is installed close to the back of the indoor unit, and includes a housing 21.
  • An air inlet pipe 211 is provided on the housing 21.
  • An induced fan 23 and a connecting pipe 25 are provided in the housing 21.
  • the induced fan 23 has an air inlet.
  • the first end of the connecting pipe 25 is connected to the exhaust fan, and the second end of the connecting pipe 25 extends to the air inlet side of the heat exchanger 13.
  • the supplementary air module 2 is configured to be able to introduce outdoor fresh air into the casing 21 through the air intake pipe 211 under the drive of the induced draft fan 23, and then pass through the suction port of the induced draft fan 23, the exhaust port 230 of the induced draft fan 23, and the connecting pipe 25. It is then discharged from the second end of the connection pipe 25 to the air inlet side of the heat exchanger 13.
  • the cross-flow fan 14 inside the indoor unit and the draft fan 23 in the air induction module rotate at low and medium speeds at the same time.
  • the return air inlet 11 into the main body 1 and passed through the heat exchanger 13 it is sent into the room from the air outlet 12; the outdoor fresh air is driven by the induced air fan 23 into the casing 21 from the air inlet pipe 211 and passes through the induced air fan 23 in turn.
  • the air outlet 230 of the induced fan 23, and the connecting pipe 25 are discharged to the air inlet side of the heat exchanger 13 through the second end of the connecting pipe 25 and mixed with the indoor air introduced by the cross-flow fan 14, the air is sent through the air outlet. 12 into the room.
  • the indoor unit of the present invention can start the induced fan 23 and the cross-flow fan 14 at the same time at low and medium speeds during operation, greatly reducing the noise of the indoor unit when the cross-flow fan 14 operates at high speed alone. That is to say, the present invention solves the problem of high noise in the air conditioner in the prior art when the air volume is running, and the air supply module 2 has a simple structure and a significant effect, and can increase the number of embedded devices without affecting the aesthetics of the indoor unit. Supply air volume, auxiliary air-conditioning for cooling / heating, suitable for large-scale popularization.
  • the housing 21 is a substantially rectangular parallelepiped, which includes a front cover 21 a and a rear cover 21 b.
  • the front cover 21 a can be snapped and bonded. , Screw connection, etc., and are fastened to the rear cover 21b.
  • the front cover 21a can be connected to the body 1 in the same manner.
  • the upper side of the rear cover 21b is provided with a mounting hole 214.
  • the indoor end of the air inlet pipe 211 has a bell mouth structure, and the bell mouth structure is installed in cooperation with the mounting hole 214, such as plugging or screwing; the outdoor of the air inlet pipe 211 End through the wall to the outside.
  • the induced draft fan 23 is preferably a centrifugal fan, which includes a volute 231, a motor 232, and a fan 233.
  • the fan 233 is formed with an air inlet, and the volute 231 is provided with an air outlet.
  • a first through hole 213 is provided at the upper part of the right side surface of the front cover 21a, and a second through hole 223 is provided at a corresponding position on the main body 1.
  • the first end of the connection pipe 25 is connected to the exhaust port of the induced draft fan 23 and is connected.
  • the second end of the tube 25 extends through the first through hole 213 and the second through hole to the air inlet side of the heat exchanger 13.
  • the pipe between the first end and the second end of the connecting pipe 25 has a curved surface section, that is, the cross section of the pipe is arc-shaped, and the second end of the connecting pipe 25 has a bell mouth structure.
  • a plurality of drainage plates 251 are also provided in the connecting pipe 25.
  • An air inlet 212 (see FIG. 1) is also provided on the housing 21 near the drainage plate 251, such as the air inlet 212.
  • the front cover 21 a is opened above the connecting pipe 25, and the air inlet 212 is disposed adjacent to the mounting hole 214.
  • the draft plate 251 can introduce nearby indoor air into the connection pipe 25 and mix it with the air flow from the draft fan 23 and eject it from the second end of the connection pipe 25.
  • the drainage plate 251 is preferably in a concave arc shape in cross section, so that when the indoor air flows through the curved drainage plate 251 from above the drainage plate 251, it can be better guided to the first connection tube 25. Both ends.
  • the air supply module 2 can be controlled separately.
  • the air supply module 2 is equipped with an electric control component (not shown in the figure).
  • the remote control for the air supply module 2 or a mobile APP is used to control the electric control component.
  • the buttons on the air conditioner remote control for controlling the air supply module 2 are reserved in advance, and the main control component is directly connected to the air conditioner through the air conditioner remote control.
  • the device reserves an interface to implement air-to-air supply module 2 control.
  • the above arrangement has the advantage that, through the setting of the supplementary air module 2, when the indoor unit is operating, the induced draft fan 23 and the cross-flow fan 14 are operated together at a low and medium speed instead of the high-speed operation of the cross-flow fan 14, so that the air supply volume is adjusted. In the case of constant or even increase, the noise is greatly reduced.
  • the cross-flow fan 14 After repeated experiments, observations, analysis, and comparisons by the inventors, it has been found that, for the cross-flow fan 14, the higher the rotation speed, the greater the noise. When the rotation speed increases to the maximum speed, the air flow accelerates and the vibration increases significantly. The noise generated by the machine will increase geometrically.
  • the induced draft fan 23 can share the air supply volume for the cross-flow fan 14, thereby greatly reducing the amount of air in the indoor unit of the air conditioner while providing the same air supply volume.
  • the noise generated by the high-speed fan at high speed ensures that the operating performance of the air conditioner is unchanged or even improved.
  • the installation of the air inlet pipe 211 enables the air conditioner indoor unit to introduce outdoor fresh air during operation, ensures the oxygen content of the indoor air, and solves many problems such as turbidity and poor quality of the indoor air.
  • the setting of the drainage plate 251 makes full use of the Venturi effect. When the air flow passes through the connecting pipe 25, the air pressure is large.
  • the rapid flow of air will cause a negative pressure near the drainage plate 251, and the indoor air flow will follow the drainage.
  • the plate 251 is sucked into the jet flow channel and the air flow is smoothly mixed, so that the airflow can be further increased while the speed of the induced draft fan 23 and the cross-flow fan 14 is maintained, or the induced draft fan 23 can be ensured while the supply airflow is guaranteed.
  • the rotational speed of the cross-flow fan 14 can be further reduced, and the noise can be further reduced.
  • the arc-shaped cross section of the drainage plate 251 reduces the on-line loss during the drainage and the friction loss when mixing with the air flow in the jet channel, which effectively improves the air intake.
  • the connecting pipe 25 has a curved surface section and a second end with a bell mouth, so that the air flow discharged from the exhaust port of the induced draft fan 23 can be smoothly transferred into the jet channel, thereby reducing loss along the way.
  • the indoor end of the air inlet pipe 211 is provided with a bell mouth structure, which can make outdoor fresh air enter the casing 21 more smoothly and smoothly, thereby increasing the amount of air drawn by the induced fan 23 and further increasing the amount of air sent.
  • the air supply module 2 can be installed outside the body 1 of the existing wall-mounted air-conditioning indoor unit, this also enables the air supply module 2 of the present invention to be sold separately, and the user does not need to spend a higher cost to purchase a new low-noise
  • the air conditioner can be installed outside the main body 1 of the indoor unit of the air conditioner with only a small purchase cost and modification cost, which greatly expands the application scenario of the present invention and is suitable for large-scale promotion and use.
  • the cross section of the drainage plate 251 can be set to other straight lines or arcs, as long as the shape can reduce the loss along the course of the drainage; for another example, the supplementary air module 2 may not be provided with the connection pipe 25, but instead The air outlet of the induced draft fan 23 is directly communicated with the second through hole of the main body 1; for another example, the connecting pipe 25 may not have a curved surface section, but may be replaced by a right-angled section, and the second end of the connecting pipe 25 may not be provided with a horn
  • the induced draft fan 23 may also use other axial flow fans or mixed flow fans; for another example, the air inlet pipe 211 and the mounting hole 214 may also be provided at other positions, such as on the top surface of the rear cover 21b. / Lower portion, or front / rear side or bottom surface of the housing 21, and the like.
  • a purifying component may be provided in the casing 21 to circulate and purify the indoor air, improve the cleanliness of the indoor air, and reduce floating particles in the air.
  • the purification component includes a partition and a filter layer, and the partition is sealedly connected to the casing 21 so as to separate the casing 21 into a first chamber and a second chamber; a filter hole is formed in the partition, and the filter layer is disposed in the first chamber. The filter hole is covered, and the induced draft fan 23 is disposed in the second chamber, and the air suction port is provided corresponding to the filter hole.
  • the filter layer is a filter structure that can adsorb or decompose harmful gases in the air, such as HEPA filters or activated carbon filters.
  • HEPA filters usually include three layers of filter layers (primary filter layer, charged layer, electrostatic dust collection layer). The removal efficiency of particles with a diameter of 0.3 microns or less can reach 99.97% or more. In this way, when the induced draft fan 23 is operated, the indoor air is first filtered through the filter layer and then sucked by the induced draft fan 23.
  • FIG. 6 is an exploded schematic diagram of a wall-mounted air-conditioning indoor unit in a second embodiment of the present invention
  • FIG. 7 is a working principle diagram of a wall-mounted air-conditioning indoor unit in a second embodiment of the present invention. Suction process of the fan.
  • two induced draft fans 23 and two connecting pipes 25 may also be provided in the housing 21, corresponding to Ground, the housing 21 is provided with two first through holes 213, and the body 1 is provided with two second through holes.
  • the induced draft fan 23 is symmetrically disposed in the casing 21.
  • the two induced draft fans 23 and the cross-flow fan 14 can achieve the same air supply volume at a smaller rotational speed, thereby further reducing the noise generated by the indoor unit when the air supply volume is large and improving the user.
  • the two induced draft fans 23 and the cross-flow fan 14 can achieve the same air supply volume at a smaller rotational speed, thereby further reducing the noise generated by the indoor unit when the air supply volume is large and improving the user.
  • FIG. 8 is a flowchart of a method for controlling a wall-mounted air conditioner indoor unit according to the present invention.
  • control method of the air-conditioning indoor unit of the present invention mainly includes the following steps:
  • S100 Obtain a set wind speed of the indoor unit. For example, by obtaining the set wind speed from the set parameters when the user selects the operating mode of the air conditioner, or when the wind speed of the indoor unit is set to automatic wind speed, the current operating wind speed is automatically obtained as the set wind speed;
  • the induced draft fan 23 and the cross-flow fan 14 are controlled to run simultaneously at the first set speed and the second set speed, respectively.
  • the wind speed threshold may be the high speed or the wind speed corresponding to the high speed of the cross-flow fan 14 when operating alone.
  • the control module of the indoor unit controls the induced draft fan 23 and the cross-flow fan 14 at the same time at low and medium speeds. Start operation to reduce the noise generated by the indoor unit.
  • the low speed is lower than the medium speed
  • the medium speed is lower than the high speed.
  • the control module of the indoor unit controls the induced draft fan 23 and the cross-flow fan 14 at the same time at a first set speed and a second set speed that are smaller than the wind speed threshold. Run at the same time.
  • the first set speed and the second set speed may be the same, or may be set based on experiments, such as a certain proportional relationship between the first set speed and the second set speed to ensure the induced fan 23 Noise is minimized when the cross-flow fan 14 is turned on simultaneously.
  • the wind speed threshold can also be adjusted according to different models and use environments, and the adjustment should be mainly based on the noise value when the cross-flow fan 14 is operated alone.
  • air-conditioning indoor unit of the present invention is described in conjunction with a wall-mounted air-conditioning indoor unit, it is obvious that the air supply module of the present invention can also be applied to other air-conditioning indoor units, such as a cabinet-type air-conditioning indoor unit.

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

Abstract

La présente invention concerne une unité intérieure de climatiseur et un procédé de commande associé. L'unité intérieure de climatiseur comprend un corps (1), un échangeur de chaleur (13) et un dispositif d'alimentation en air (14) étant disposés dans le corps (1). L'unité intérieure de climatiseur comprend en outre un module d'alimentation en air (2), le module d'alimentation en air (2) comprenant un boîtier (21), un tuyau d'entrée d'air (211) en communication avec l'extérieur étant disposé sur le boîtier (21), un ventilateur de tirage (23) et un tuyau de raccordement (25) étant disposés dans le boîtier (21) ; une première extrémité du tuyau de raccordement (25) est reliée à une sortie d'air (230) du ventilateur de tirage (23), une seconde extrémité du tuyau de raccordement (25) s'étend jusqu'à un côté d'entrée d'air de l'échangeur de chaleur (13) ; le module d'alimentation en air (2) est configuré pour pouvoir introduire, entraîné par le ventilateur de tirage (23), de l'air frais extérieur dans le boîtier (21) à travers le tuyau d'entrée d'air (211), de sorte que l'air frais extérieur circule à travers le ventilateur de tirage (23) et le tuyau de raccordement (25), puis soit évacué vers le côté d'entrée d'air de l'échangeur de chaleur (13) ; et le tuyau de raccordement (25) est pourvu d'une plaque de guidage d'écoulement (251), la plaque de guidage d'écoulement (251) introduisant de l'air à proximité dans le tuyau de raccordement (25) lorsque le ventilateur de tirage (23) fonctionne, et le module de supplément d'air (2) peut réduire significativement le bruit lorsque l'unité intérieure de climatiseur fonctionne.
PCT/CN2019/083505 2018-05-21 2019-04-19 Unité intérieure de climatiseur et procédé de commande associé WO2019223473A1 (fr)

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EP3892926A1 (fr) * 2020-04-09 2021-10-13 Beijing Xiaomi Mobile Software Co., Ltd. Dispositif à conduit d'air et appareil de traitement d'air
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CN108759018A (zh) * 2018-05-21 2018-11-06 青岛海尔空调器有限总公司 空调室内机及其控制方法
CN108662661A (zh) * 2018-05-21 2018-10-16 青岛海尔空调器有限总公司 空调室内机及其控制方法
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