CN116972444A - Indoor unit of air conditioner - Google Patents

Indoor unit of air conditioner Download PDF

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Publication number
CN116972444A
CN116972444A CN202210425190.6A CN202210425190A CN116972444A CN 116972444 A CN116972444 A CN 116972444A CN 202210425190 A CN202210425190 A CN 202210425190A CN 116972444 A CN116972444 A CN 116972444A
Authority
CN
China
Prior art keywords
air outlet
air
indoor unit
holes
duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210425190.6A
Other languages
Chinese (zh)
Inventor
张蕾
王永涛
殷乐
蒋骏
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.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202210425190.6A priority Critical patent/CN116972444A/en
Publication of CN116972444A publication Critical patent/CN116972444A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • F24F13/082—Grilles, registers or guards
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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)
  • Thermal Sciences (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The invention provides an air conditioner indoor unit which comprises a heat exchange air duct, one or two air outlet cavities and one or two second air outlets. The outlet of the heat exchange air duct is a first air outlet. Each air outlet cavity is arranged on one lateral side of the heat exchange air duct, and each air outlet cavity is communicated with the heat exchange air duct at the lower end of the air outlet cavity. Each second air outlet is arranged on the front cavity wall of one air outlet cavity and penetrates through the outer side of the air conditioner indoor unit so as to supply air to the outer side of the air conditioner indoor unit. The first air outlet is a strip-shaped air outlet extending along the transverse direction, and the ratio of the transverse length of the first air outlet to the transverse length of each air outlet cavity is 18-22. The air conditioner indoor unit provided by the invention can realize large-angle air supply, increases the air outlet range, meets the requirement of rapid cooling, and improves the comfort of users.

Description

Indoor unit of air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit.
Background
The air conditioner improves the living standard of people, brings cool air for people in hot summer, and enables people to live at a proper temperature, so that the mood, sleep, work and study of the people are in a normal state. However, most of the existing indoor units of air conditioners are air outlets, air flows are blown out from one air outlet, and the air supply mode is cool air direct blowing, so that the cool air is directly blown on a person, and people are uncomfortable and even ill. The air outlet range of an air outlet is also smaller, and the requirement of rapid cooling cannot be met. The arrangement of the air outlets is unreasonable, and the air supply effect can be influenced.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide an indoor unit of an air conditioner that overcomes or at least partially solves the above problems, and can realize large-angle air supply, increase the air outlet range, meet the requirement of rapid cooling, and improve user comfort.
Specifically, the invention provides an air conditioner indoor unit, which comprises a heat exchange air duct, wherein an outlet of the heat exchange air duct is a first air outlet, and the air conditioner indoor unit further comprises:
one or two air outlet cavities, wherein each air outlet cavity is arranged on one lateral side of the heat exchange air duct, and each air outlet cavity is communicated with the heat exchange air duct at the lower end of the air outlet cavity;
one or two second air outlets, each of which is arranged on the front cavity wall of one air outlet cavity and penetrates to the outer side of the air conditioner indoor unit so as to supply air to the outer side of the air conditioner indoor unit;
the first air outlet is a strip-shaped air outlet extending along the transverse direction, and the ratio of the transverse length of the first air outlet to the transverse length of each air outlet cavity is 18-22.
Optionally, each second air outlet is a strip air outlet extending along the up-down direction;
the width of each second air outlet is equal to the transverse length of each air outlet cavity, or the width of each second air outlet is more than 80% of the transverse length of each air outlet cavity.
Optionally, a plurality of first dividing strips arranged at intervals along the up-down direction and a plurality of second dividing strips arranged at intervals along the transverse direction are arranged in each second air outlet, so that each second air outlet is divided into a plurality of grid holes, and each grid hole extends along the up-down direction.
Optionally, the first dividing strip makes a plurality of the grid holes arranged in a plurality of groups arranged in the up-down direction, and each group of the grid holes comprises a plurality of the grid holes arranged in sequence in the transverse direction;
the grid holes comprise a first group of grid holes, a second group of grid holes, a third group of grid holes and a fourth group of grid holes which are sequentially arranged along the up-down direction;
the sum of the lengths of the grid holes in the first group of grid holes, the lengths of the grid holes in the second group of grid holes, the lengths of the grid holes in the third group of grid holes and the lengths of the grid holes in the fourth group of grid holes is the length of the grid holes;
the ratio between the length of the grating holes and the length of the grating holes in the first group of grating holes is 40/220 to 48/220;
the ratio between the length of the grating holes and the length of the grating holes in the second group of grating holes is 48/220 to 56/220;
the ratio between the length of the grating holes and the length of the grating holes in the third group of grating holes is 51/220 to 59/220;
the ratio between the length of the grating holes and the length of the grating holes in the fourth set of grating holes is 58/220 to 66/220.
Optionally, an air deflector is disposed at the first air outlet, and the air deflector is configured to open and close the first air outlet, so that the first air outlet has an opening degree of more than a first percentage, the air conditioning indoor unit has a first air outlet mode, and the first air outlet has an opening degree of less than a second percentage, so that the air conditioning indoor unit has a second air outlet mode; the first percentage is greater than or equal to the second percentage; the ratio between the air output of the second air outlet and the air output of the first air outlet in the second air outlet mode is larger than the ratio between the air output of the second air outlet and the air output of the first air outlet in the first air outlet mode.
Optionally, the indoor unit of the air conditioner further comprises a cross-flow fan and a heat exchanger, wherein the heat exchanger is arranged in the heat exchange air duct, and each air outlet cavity receives air flow in the heat exchange air duct after heat exchange with the heat exchanger; the cross flow fan is arranged in the heat exchange air duct to promote the air flow subjected to heat exchange with the heat exchanger to enter the air outlet cavity and flow out of the first air outlet;
the ratio of the rotating speed of the cross flow fan in the second air outlet mode to the rotating speed of the cross flow fan in the first air outlet mode is 1.2-1.8.
Optionally, the indoor unit of the air conditioner further comprises one or two bypass air channels, each bypass air channel is arranged on one lateral side of the heat exchange air channel, and each bypass air channel is communicated with the heat exchange air channel and one air outlet cavity;
the area ratio between the inlet of the bypass duct and the outlet of the bypass duct is 0.5 to 0.7.
Optionally, a ratio between the area of the first air outlet and the total area of the two second air outlets is 2 to 3;
the ratio of the length to the width of the first air outlet is 13 to 15;
the ratio between the length and the width of the second air outlet is 5 to 7.
Optionally, the indoor unit of the air conditioner further comprises a plurality of air dividing plates;
the projection of the rear wall surface of the air outlet cavity on a plane perpendicular to the transverse direction is a first circular arc, and the center of the first circular arc is positioned at the front side or the front lower side of the first circular arc; the upper end of the rear wall surface of the air outlet cavity is the highest point of the air outlet cavity, and the lower end of the rear wall surface of the air outlet cavity is the lowest point of the air outlet cavity;
the air distribution plates are sequentially arranged in the air outlet cavity at intervals along the up-down direction, and divide the corresponding second air outlet into a plurality of air outlet areas.
Optionally, the air conditioner indoor unit further comprises one or two induced draft fans configured to promote the air flow in the heat exchange air duct to enter the air outlet cavity and flow out of the second air outlet; the air outlet of each induced draft fan is positioned in the air outlet cavity, the direction of the air outlet is vertical upwards, and the air outlet is positioned behind the rear ends of the plurality of air dividing plates.
In the air conditioner indoor unit, air flow in the heat exchange air duct enters the air outlet cavity and flows out of the second air outlet, so that large-angle air supply can be realized, and the requirement of rapid cooling is met. Particularly, as the air outlet cavities are formed, and a certain ratio relationship exists between the transverse dimension of the first air outlet and the transverse dimension of each air outlet cavity, the reasonable arrangement of the second air outlet is facilitated, and the air supply in a preset air outlet mode is met.
Further, the air conditioning indoor unit of the present invention is preferably a wall-mounted air conditioning indoor unit.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a schematic block diagram of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a side box and induced draft fan according to one embodiment of the present invention;
fig. 3 is a schematic cross-sectional view showing an air deflector of an indoor unit of an air conditioner according to an embodiment of the present invention being opened;
fig. 4 is a schematic cross-sectional view of an air deflector of an indoor unit of an air conditioner according to an embodiment of the present invention not fully closed;
fig. 5 is a schematic front view block diagram of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a swing blade apparatus of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 7 is a schematic block diagram of an air outlet chamber and a splitter plate of an air conditioning indoor unit according to one embodiment of the invention;
fig. 8 is a schematic cross-sectional view of an air conditioner indoor unit according to one embodiment of the present invention;
fig. 9 is a schematic structural view of a skeleton of an air-conditioning indoor unit according to an embodiment of the present invention;
fig. 10 is a schematic exploded view of an air conditioning indoor unit according to one embodiment of the present invention;
fig. 11 is a schematic exploded view of an indoor unit of an air conditioner according to another embodiment of the present invention.
Detailed Description
An air conditioning indoor unit according to an embodiment of the present invention is described below with reference to fig. 1 to 11. In the description of the present embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.
Unless specifically stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be connected, either permanently or removably, or integrally; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present invention as the case may be.
Furthermore, in the description of the present embodiments, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween. That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.
In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Fig. 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention, as shown in fig. 1, and referring to fig. 2 to 11, an indoor unit 100 of an air conditioner according to an embodiment of the present invention includes a heat exchange air duct 102, a first air outlet 103, one or two air outlet cavities 105, and one or two second air outlets 106. The outlet of the heat exchange air duct 102 is a first air outlet 103. Each air outlet cavity 105 is disposed on one lateral side of the heat exchange air duct 102, and each air outlet cavity 105 communicates with the heat exchange air duct 102 at its lower end. Each second air outlet 106 is disposed on a front cavity wall of one air outlet cavity 105 and penetrates to the outside of the air conditioning indoor unit 100 to supply air to the outside of the air conditioning indoor unit 100. The first air outlet 103 is a long strip-shaped air outlet extending along the transverse direction, and the ratio between the transverse length of the first air outlet 103 and the transverse length of each air outlet cavity 105 is 18 to 22. Preferably, the ratio is 20.
In the indoor unit 100 of the air conditioner of the embodiment of the invention, the air flow in the heat exchange air duct 102 enters the air outlet cavity 105 and flows out of the second air outlet 106, so that large-angle air supply can be realized, and the requirement of rapid cooling is met. Particularly, as the air outlet cavities 105 are formed, and a certain ratio relationship exists between the transverse dimension of the first air outlet 103 and the transverse dimension of each air outlet cavity 105, the reasonable arrangement of the second air outlet 106 is facilitated, and the air supply in the preset air outlet mode is met.
In some embodiments of the present invention, as shown in fig. 3, 4 and 8, the indoor unit 100 further includes a heat exchanger 101 and one or two bypass ducts 104. The heat exchanger 101 is disposed in the heat exchange air duct 102. Each bypass air duct 104 is disposed on a lateral side of the heat exchange air duct 102, and each bypass air duct 104 is connected to the heat exchange air duct 102 to receive the air flow in the heat exchange air duct 102 after heat exchange with the heat exchanger 101. Each air outlet cavity 105 is communicated with one bypass air duct 104.
In the air conditioning indoor unit 100 of the embodiment of the present invention, the air flow after heat exchange with the heat exchanger 101 in the heat exchange air duct 102 is discharged out of the air conditioning indoor unit 100 through the first air outlet 103 and one or two second air outlets 106, so that the air conditioning indoor unit 100 has at least two air outlet modes, for example, an air outlet mode of supplying air only from the second air outlet 106, and due to the existence of the bypass air duct 104 and the air outlet cavity 105, the air supply of the second air outlet 106 can realize no air sensation, and the comfort of a user is improved. For example, the second air outlet 106 and the first air outlet 103 supply air at the same time, and the opening of the first air outlet 103 is smaller, so that another air supply without air feeling can be realized. For another example, the second air outlet 106 and the first air outlet 103 supply air simultaneously, and the opening of the first air outlet 103 is larger, so that rapid air supply is realized, and the air supply angle is large, so that the air supply range is large. Preferably, the number of the air outlet cavities 105 and the bypass air channels 104 is two, so that air supply without wind sense, large-angle air supply, rapid air supply and the like are further facilitated, and air flow diffusion and the like are facilitated.
In addition, the first air outlet 103 and the second air outlet 106 share the heat exchange air duct 102, so that the heat exchanger can exchange heat uniformly in various air outlet modes, and the problem of local frosting of the heat exchanger 101 is effectively avoided. Further, the air conditioning indoor unit 100 includes a fan that promotes airflow through the heat exchange duct 102, the first air outlet 103, and the second air outlet 106. For example, the fan may be a cross-flow fan. The volute 108 and the volute tongue 109 of the cross flow fan define part or all of the heat exchange air duct 102, and the cross flow wind wheel 107 of the cross flow fan is arranged in the heat exchange air duct 102.
In some embodiments of the present invention, each of the second air outlets 106 is an elongated air outlet extending in the up-down direction. The width of each second air outlet 106 is equal to the lateral length of each air outlet cavity 105, or the width of each second air outlet 106 is more than 80% of the lateral length of each air outlet cavity 105.
In some embodiments of the present invention, as shown in fig. 2, a plurality of dividing strips 128 are disposed in each second air outlet 106 at intervals in the up-down direction, so as to divide each second air outlet 106 into a plurality of grid holes 129 disposed in sequence in the up-down direction, and each grid hole 129 extends in the transverse direction. The separation strip 128 makes the second air outlet 106 be separated into a plurality of grid holes 129, so that the blown air flow is more uniform, and the comfort of users is improved.
In some embodiments of the present invention, as shown in fig. 5, a plurality of first dividing strips 130 spaced apart in the up-down direction and a plurality of second dividing strips 131 spaced apart in the transverse direction are disposed in each second air outlet 106 to divide each second air outlet 106 into a plurality of grid holes 129, and each grid hole 129 extends in the up-down direction. The first and second dividing strips 130 and 131 divide the second air outlet 106 into the grid holes 129, so that the blown air flow is more uniform, and the comfort of the user is improved. The width of each grating hole 129 is 4mm to 6mm, and the width of each second air outlet 106 is 35mm to 40mm. Preferably, the width of each of the grill holes 129 is 5mm, and the width of each of the second air outlets 106 is 37mm.
In some embodiments of the present invention, the first division bar 130 causes the plurality of grid holes to be arranged in a plurality of groups disposed in the up-down direction, each group of grid holes including the plurality of grid holes disposed in sequence in the lateral direction. The plurality of groups of grid holes comprise a first group of grid holes, a second group of grid holes, a third group of grid holes and a fourth group of grid holes which are sequentially arranged along the up-down direction. The sum of the lengths of the first set of grid holes, the second set of grid holes, the third set of grid holes and the fourth set of grid holes is the grid hole length. The ratio between the length of the grating holes in the first set of grating holes and the length of the grating holes is 40/220 to 48/220. Preferably, the ratio is 44/220. The ratio between the length of the grating holes in the second set of grating holes and the length of the grating holes is 48/220 to 56/220. Preferably, the ratio is 52/220. The ratio between the length of the grating holes in the third group of grating holes and the length of the grating holes is 51/220 to 59/220. Preferably, the ratio is 55/220. The ratio between the length of the grating holes in the fourth set of grating holes and the length of the grating holes is 58/220 to 66/220. Preferably, the ratio is 62/220.
In some embodiments of the present invention, the air conditioning indoor unit 100 further includes a housing. The heat exchanger 101 and the heat exchanging air duct 102 are located in the housing. The first air outlet 103 and the second air outlet 106 are located on the housing, and the first air outlet 103 supplies air forward and/or forward and downward. Preferably, the first air outlet 103 is disposed at the bottom of the housing, and is a strip air outlet extending along the transverse direction. Each second air outlet 106 is disposed at a lateral side of the first air outlet 103, and each second air outlet 106 is a strip air outlet extending along an up-down direction. The second air outlets 106 are arranged in two, so that the air is blown out in three front directions, the air is blown out in a manner of being convenient for the air without wind sense, the air is blown out in a large angle, the air is blown out fast, and the like, and the air is blown out in a flat manner without the air for refrigerating, so that the comfort of users is improved.
In some embodiments of the present invention, as shown in fig. 1, 3 and 4, an air deflector 110 is disposed at the first air outlet 103, and the air deflector 110 is configured to open and close the first air outlet 103, so that the first air outlet 103 has different openings, and thus the indoor unit 100 of the air conditioner has different air outlet modes. Specifically, the first air outlet 103 has an opening degree of more than a first percentage, so that the air conditioning indoor unit 100 has a first air outlet mode, and the first air outlet 103 has an opening degree of less than a second percentage, so that the air conditioning indoor unit 100 has a second air outlet mode. The first percentage is greater than or equal to the second percentage. For example, the first percentage is 20% to 40%, the second percentage is 20% or 5%, and preferably, both the first percentage and the second percentage are 20%. The ratio between the air output of the second air outlet 106 and the air output of the first air outlet 103 in the second air outlet mode is greater than the ratio between the air output of the second air outlet 106 and the air output of the first air outlet 103 in the first air outlet mode. The opening degree of the first air outlet 103 is adjusted, so that the ratio between the air outlet of the first air outlet 103 and the air outlet of the second air outlet 106 is adjusted, and the use requirements of different air supply modes are met.
At least in the second air outlet mode, under the action of the air deflector 110, the air outlet between the upper edge of the air deflector 110 and the upper edge of the first air outlet 103 is larger than the air outlet between the lower edge of the air deflector 110 and the lower edge of the first air outlet 103. By the arrangement, the second air outlet mode can supply air without wind sense, and the air-cooling air is blown flatly without people, so that the user comfort is improved. Moreover, the opening degree of the air deflector 110 is controlled, so that the air deflector 110 is positioned at a proper position, the condensation phenomenon can be prevented, for example, the second percentage is 10%, the condensation can be prevented, meanwhile, most of the air at the first air outlet 103 is blown out through the second air outlet 106 due to being blocked, the purpose that the air is cooled and blown out flatly is achieved, the air outlet range is enlarged, and the user comfort is improved. The ratio of the rotating speed of the cross flow fan in the second air outlet mode to the rotating speed of the cross flow fan in the first air outlet mode is 1.2-1.8. Preferably, the ratio is 1.5.
In some embodiments of the present invention, the ratio between the area of the first air outlet 103 and the total area of the two second air outlets 106 is 2 to 3. The ratio between the length and the width of the first air outlet 103 is 13 to 15. The ratio between the length and the width of the second air outlet 106 is 5 to 7. Preferably, the ratio between the area of the first air outlet 103 and the total area of the second air outlet 106 is 2.5. The ratio between the length and the width of the first air outlet 103 is 14. The ratio between the length and the width of the second air outlet 106 is 6.
In some embodiments of the invention, the heat exchange air duct 102 includes a first air duct section and a second air duct section for receiving an air flow of the first air duct section. The width of the second duct section is greater than the width of the first duct section in the transverse direction. Along the transverse direction, one side of the first air channel section is flush with one side of the second air channel section. Each bypass duct 104 is connected to one side of the second duct section. The outlet of the second air duct section is the first air outlet 103.
In some embodiments of the present invention, the housing includes one or two side boxes 111, each side box 111 is located at a lateral side of the heat exchange air duct 102, each side box 111 has an air outlet cavity 105 therein, and the second air outlet 106 is disposed on a front surface of the corresponding side box 111. The housing further includes a frame 114, a cover 115, the cover 115 being disposed on the frame 114, and a front panel 116, the front panel 116 being disposed on the cover 115. Each side case 111 is disposed on one lateral side of the frame 114 and the housing 115, and the heat exchange air duct 102 is located in a space defined by the housing 115 and the frame 114. The indoor unit 100 further includes a bypass duct, and the interior space of the bypass duct is a bypass duct 104. The air flow in the heat exchange air duct 102 after heat exchange with the heat exchanger 101 enters the air outlet cavity 105 in one side box 111 and is blown out through the second air outlet 106 on the front surface of the one side box 111.
As shown in fig. 2, each side case 111 may include a case 112 having an opening and a case cover 113 disposed at the opening of the case 112. Part or all of the second air outlet 106 is provided on the box cover 113. The cover 113 is integrally formed with the front panel 116, so that the structure is simple and the manufacturing is convenient. In some other embodiments, the side box 111 and the front panel 116 are two separate components that mate with each other by mounting.
In some embodiments of the present invention, as shown in fig. 7, a projection of the rear wall surface of the air outlet cavity 105 on a plane perpendicular to the transverse direction is a first circular arc, and a center of the first circular arc is located at a front side or a front lower side of the first circular arc. Preferably, the upper end of the rear wall surface of the air outlet cavity 105 is the highest point of the air outlet cavity 105, and the lower end is the lowest point of the air outlet cavity 105.
In some embodiments of the invention, the radius of the first arc is 450mm to 550mm and the corresponding central angle of the first arc is 30 degrees to 40 degrees. Preferably, the radius of the first circular arc is 500mm, and the corresponding central angle of the first circular arc is 35 degrees, so that the air flow in the air outlet cavity 105 can better flow to the second air outlet 106.
In some embodiments of the present invention, as shown in fig. 7, in order to supply air to the second air outlet 106 as reasonably and uniformly as possible, the indoor unit 100 further includes a plurality of air distribution plates 117. The plurality of air dividing plates 117 are sequentially arranged in the air outlet cavity 105 at intervals along the up-down direction, and the plurality of air dividing plates 117 divide the corresponding second air outlets 106 into a plurality of air outlet areas. The front end of each air dividing plate 117 is located above the front of the rear end, the front end of each air dividing plate 117 is located on the front wall surface of the air outlet cavity 105, and two sides of each air dividing plate 117 can be connected with two side wall surfaces of the air outlet cavity 105. The projection of the air dividing plate 117 on a plane perpendicular to the transverse direction is a second circular arc, the center of the second circular arc is positioned at the front side or the front lower side of the second circular arc, the diameter of the second circular arc is 150mm to 250mm, and the straight line distance between the front end and the rear end is 30mm to 50mm. Preferably, the diameter of the second circular arc is 200mm, and the linear distance between the front end and the rear end is 40mm. The plurality of air separation plates 117 are arranged in parallel, and the rear end of the upper air separation plate 117 is positioned above and behind the rear end of the lower air separation plate 117 in the two adjacent air separation plates 117.
In some embodiments of the invention, the profile of the cross section of each bypass duct 104 is the same as the profile of the corresponding side of the second duct section. The distance between the rear upper corner of the inlet end of each bypass duct 104 and the center of the volute tongue 109 is 22mm to 28mm. Preferably, the distance between the rear upper corner of the inlet end of each bypass duct 104 and the center of the volute tongue 109 is 25mm.
The inlet end of each bypass duct 104 is provided with a mounting plate perpendicular to the bypass duct 104. The air deflection 110 is rotatably mounted to the mounting plate. The air conditioning indoor unit 100 further includes an air deflector motor. The air deflector motor is mounted in a bypass duct 104 for driving the air deflector 110 to rotate. In some alternative embodiments of the invention, the profile of the cross section of each bypass duct 104 may also be non-uniform with the profile of the corresponding side of the second duct section, the ratio between the inlet area and the outlet area of each bypass duct 104 being 0.5 to 0.7. Preferably, the ratio is 0.6.
In some embodiments of the present invention, a plurality of flow guiding ribs are disposed on the lower surface of the heat exchange air duct 102 at intervals along the lateral direction, so as to guide the air flow in the heat exchange air duct 102 into the bypass air duct 104. The plurality of guide ribs are positioned in the first air channel section. One end of each flow guide rib is positioned on the boundary line of the first air duct section and the second air duct section, or the distance between one end of each flow guide rib, which is adjacent to the boundary line of the first air duct section and the second air duct section, and the boundary line of the first air duct section and the second air duct section is within 10mm.
Preferably, as shown in fig. 9, the plurality of flow-guiding ribs includes a first flow-guiding rib 118, a plurality of second flow-guiding ribs 119, and a plurality of third flow-guiding ribs 120. The first deflector rib 118 is located in the middle of the heat exchange air duct 102. The plurality of second guide ribs 119 are located at one side of the first guide rib 118, and a distance between one end, far away from the second air channel section, of each second guide rib 119 and the first guide rib 118 is smaller than a distance between the other end of the second guide rib 119 and the first guide rib 118. The plurality of third guide ribs 120 are located at the other side of the first guide rib 118, and a distance between one end, far away from the second air channel section, of each third guide rib 120 and the first guide rib 118 is smaller than a distance between the other end of the third guide rib 120 and the first guide rib 118. The second guide rib 119 and the third guide rib 120 are respectively used for guiding the airflow into the two bypass air channels 104.
In some embodiments of the present invention, as shown in fig. 6, the indoor unit 100 further includes a vane device 121, where the vane device 121 includes one or more vane groups sequentially disposed along a transverse direction, and each vane group includes a plurality of vane blades 122 disposed in the heat exchange duct 102 and sequentially disposed along the transverse direction. The plurality of vane blades 122 of each vane group may be connected by a vane link 123 to perform synchronous oscillation. The number of the swing blade sets is at least two, and the swing blade sets are used for respectively supplying air to the two bypass air channels 104. The swing blade group is arranged in the first air duct section.
The vane device 121 further includes one or more driving transmission assemblies, and each driving rotation assembly drives the vane 122 of one vane group to swing synchronously. In other embodiments of the present invention, the swing blade apparatus 121 includes one or more handhold devices 124, and the handhold devices 124 are used to move each swing blade link 123 to swing the corresponding swing blade 122.
In some embodiments of the present invention, as shown in fig. 8, a plurality of parallel rectifying ribs 125 are disposed at the inlet of the bypass air duct 104, the cross section of the rectifying ribs 125 is trapezoidal, and the larger side of the parallel two sides of the rectifying ribs 125 faces the outlet of the bypass air duct 104. The width of the larger side of the parallel sides of the rectifying rib 125 is 1.8mm to 2.2mm. The width of the smaller side of the parallel sides of the rectifying rib 125 is 1.5mm to 2mm. The distance between each two adjacent rectifying ribs 125 is 14mm to 16mm. Preferably, the width of the larger-area side of the parallel two sides of the rectifying rib 125 is 2mm. The width of the smaller side of the parallel sides of the rectifying rib 125 is 1.7mm. The distance between each two adjacent rectifying ribs 125 is 15mm. The flow straightening ribs 125 guide the air flow into the bypass air duct 104, and enable the air flow to be smoother and free of turbulence.
Volute tongue 109 includes a first section 126 that is positioned outside of cross-flow rotor 107 of the cross-flow fan, and a second section 127 that is coupled to first section 126 for directing airflow through cross-flow rotor 107. The rectifying ribs 125 are parallel to the second section 127 or the angle between the rectifying ribs 125 and the second section 127 is less than 5 °.
In some embodiments of the present invention, the first air outlet 103 has a first edge and a second edge extending in a lateral direction, the first edge being forward or above or forward and above the second edge. The lower edge of the second air outlet 106 is at the same height as the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is higher than the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is located between the second edge and the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is at the same height as the second edge of the first air outlet 103.
In some embodiments of the present invention, the lower edge of the second air outlet 106 is at the same height as the front end of the upper edge of the inlet of the bypass air duct 104, and the highest of the upper edge of the inlet of the bypass air duct 104 is 8mm to 12mm higher than the lower edge of the second air outlet 106. Preferably 10mm.
In some embodiments of the present invention, the indoor unit 100 further includes an air induction device configured to induce the airflow in the heat exchange air duct 102 to enter the air outlet cavity 105 and flow out of the second air outlet 106. As shown in fig. 2, the induced air device includes induced draft fans 132, and an air outlet of each induced draft fan 132 is located in the air outlet cavity 105, and an air outlet faces vertically upwards. Each induced draft fan 132 is disposed in one air outlet cavity 105, and an air inlet of each induced draft fan 132 is communicated with the heat exchange air duct 102 through the bypass air duct 104. Preferably, the induced draft fan 132 is a centrifugal fan.
In some embodiments of the present invention, as shown in fig. 10 and 11, the indoor unit 100 further includes a fan motor 133, an electric cabinet 134, a pipe pressing plate 135, a wall hanging plate 136, a dust filtering net 137, a motor pressing cover 140, a human-sensing module 141, another air guiding plate disposed at the first air outlet 103 and inside the air guiding plate 110, and the like. The fan motor 133 is used for driving the cross-flow fan to work. The blower motor 133 and the electric cabinet 134 are disposed at the rear side of the portion of the second air duct section beyond the first air duct section.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. The utility model provides an indoor unit of air conditioner, includes the heat transfer wind channel, the export in heat transfer wind channel is first air outlet, its characterized in that still includes:
one or two air outlet cavities, wherein each air outlet cavity is arranged on one lateral side of the heat exchange air duct, and each air outlet cavity is communicated with the heat exchange air duct at the lower end of the air outlet cavity;
one or two second air outlets, each of which is arranged on the front cavity wall of one air outlet cavity and penetrates to the outer side of the air conditioner indoor unit so as to supply air to the outer side of the air conditioner indoor unit;
the first air outlet is a strip-shaped air outlet extending along the transverse direction, and the ratio of the transverse length of the first air outlet to the transverse length of each air outlet cavity is 18-22.
2. An indoor unit for an air conditioner according to claim 1, wherein,
each second air outlet is a strip-shaped air outlet extending along the up-down direction;
the width of each second air outlet is equal to the transverse length of each air outlet cavity, or the width of each second air outlet is more than 80% of the transverse length of each air outlet cavity.
3. An indoor unit for an air conditioner according to claim 2, wherein,
a plurality of first dividing strips which are arranged at intervals along the up-down direction and a plurality of second dividing strips which are arranged at intervals along the transverse direction are arranged in each second air outlet, so that each second air outlet is divided into a plurality of grid holes, and each grid hole extends along the up-down direction.
4. An indoor unit for an air conditioner according to claim 3, wherein,
the first dividing strips enable a plurality of grid holes to be arranged into a plurality of groups which are arranged along the up-down direction, and each group of grid holes comprises a plurality of grid holes which are arranged along the transverse direction in sequence;
the grid holes comprise a first group of grid holes, a second group of grid holes, a third group of grid holes and a fourth group of grid holes which are sequentially arranged along the up-down direction;
the sum of the lengths of the grid holes in the first group of grid holes, the lengths of the grid holes in the second group of grid holes, the lengths of the grid holes in the third group of grid holes and the lengths of the grid holes in the fourth group of grid holes is the length of the grid holes;
the ratio between the length of the grating holes and the length of the grating holes in the first group of grating holes is 40/220 to 48/220;
the ratio between the length of the grating holes and the length of the grating holes in the second group of grating holes is 48/220 to 56/220;
the ratio between the length of the grating holes and the length of the grating holes in the third group of grating holes is 51/220 to 59/220;
the ratio between the length of the grating holes and the length of the grating holes in the fourth set of grating holes is 58/220 to 66/220.
5. An indoor unit for an air conditioner according to claim 2, wherein,
the air conditioner indoor unit comprises a first air outlet, a second air outlet and an air guide plate, wherein the air guide plate is arranged at the first air outlet and is configured to open and close the first air outlet, so that the first air outlet has an opening degree of more than a first percentage, the air conditioner indoor unit has a first air outlet mode, and the first air outlet has an opening degree of less than a second percentage, and the air conditioner indoor unit has a second air outlet mode; the first percentage is greater than or equal to the second percentage; the ratio between the air output of the second air outlet and the air output of the first air outlet in the second air outlet mode is larger than the ratio between the air output of the second air outlet and the air output of the first air outlet in the first air outlet mode.
6. The indoor unit of claim 5, further comprising a cross-flow fan and a heat exchanger, wherein the heat exchanger is disposed in the heat exchange air duct, and each air outlet cavity receives air flow in the heat exchange air duct after heat exchange with the heat exchanger; the cross flow fan is arranged in the heat exchange air duct to promote the air flow subjected to heat exchange with the heat exchanger to enter the air outlet cavity and flow out of the first air outlet;
the ratio of the rotating speed of the cross flow fan in the second air outlet mode to the rotating speed of the cross flow fan in the first air outlet mode is 1.2-1.8.
7. The indoor unit of claim 1, further comprising one or two bypass air ducts, each bypass air duct being disposed on a lateral side of the heat exchange air duct, each bypass air duct communicating the heat exchange air duct with one of the air outlet chambers;
the area ratio between the inlet of the bypass duct and the outlet of the bypass duct is 0.5 to 0.7.
8. An indoor unit for an air conditioner according to claim 1, wherein,
the ratio of the area of the first air outlet to the total area of the two second air outlets is 2 to 3;
the ratio of the length to the width of the first air outlet is 13 to 15;
the ratio between the length and the width of the second air outlet is 5 to 7.
9. The indoor unit of claim 1, further comprising a plurality of air distribution plates;
the projection of the rear wall surface of the air outlet cavity on a plane perpendicular to the transverse direction is a first circular arc, and the center of the first circular arc is positioned at the front side or the front lower side of the first circular arc; the upper end of the rear wall surface of the air outlet cavity is the highest point of the air outlet cavity, and the lower end of the rear wall surface of the air outlet cavity is the lowest point of the air outlet cavity;
the air distribution plates are sequentially arranged in the air outlet cavity at intervals along the up-down direction, and divide the corresponding second air outlet into a plurality of air outlet areas.
10. The indoor unit of claim 9, further comprising one or two induced draft fans configured to induce airflow in the heat exchange duct into the air outlet chamber and out of the second air outlet; the air outlet of each induced draft fan is positioned in the air outlet cavity, the direction of the air outlet is vertical upwards, and the air outlet is positioned behind the rear ends of the plurality of air dividing plates.
CN202210425190.6A 2022-04-21 2022-04-21 Indoor unit of air conditioner Pending CN116972444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210425190.6A CN116972444A (en) 2022-04-21 2022-04-21 Indoor unit of air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210425190.6A CN116972444A (en) 2022-04-21 2022-04-21 Indoor unit of air conditioner

Publications (1)

Publication Number Publication Date
CN116972444A true CN116972444A (en) 2023-10-31

Family

ID=88483661

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210425190.6A Pending CN116972444A (en) 2022-04-21 2022-04-21 Indoor unit of air conditioner

Country Status (1)

Country Link
CN (1) CN116972444A (en)

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