WO2020203416A1 - Unité de climatisation - Google Patents

Unité de climatisation Download PDF

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Publication number
WO2020203416A1
WO2020203416A1 PCT/JP2020/012741 JP2020012741W WO2020203416A1 WO 2020203416 A1 WO2020203416 A1 WO 2020203416A1 JP 2020012741 W JP2020012741 W JP 2020012741W WO 2020203416 A1 WO2020203416 A1 WO 2020203416A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
filter
view
flat panel
central portion
Prior art date
Application number
PCT/JP2020/012741
Other languages
English (en)
Japanese (ja)
Inventor
脩一 田中
義照 野内
Original Assignee
ダイキン工業株式会社
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 ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2020203416A1 publication Critical patent/WO2020203416A1/fr

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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
    • 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
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • 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
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • 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

Definitions

  • the air conditioning unit especially the air conditioning unit in which the air suction port is formed on the lower surface.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2001-274278 discloses an invention in which an air-conditioning duct is extended from an air-conditioning unit installed behind the ceiling of a room to separate the air-conditioning air from the main body of the air-conditioning unit.
  • the outlet duct extends from the side surface of the main body of the air conditioning unit.
  • the suction port is formed on the lower surface of the main body of the air conditioning unit.
  • a suction port panel is often provided under the main body.
  • the suction panel hides at least a part of the main body of the air conditioning unit to improve the appearance.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2001-27428
  • a suction port panel in which a large number of openings such as slits are formed is provided, and the air in the room is sucked into the main body of the air conditioning unit while improving the appearance. Lead to. Then, when inspecting and maintaining the air conditioning unit, the suction port panel is removed.
  • dust dust or dust (hereinafter referred to as dust) may fall from the opening into the room when the operation is stopped.
  • the air conditioning unit of the first aspect includes a main body casing, a filter, and a plate-shaped member.
  • the main body casing is installed above or above the air-conditioned space.
  • the main body casing houses the fan and heat exchanger.
  • An air suction port is formed on the lower surface of the main body casing.
  • the filter collects dust contained in the air passing through the suction port.
  • the plate-like member is located below the filter. In plan view, the plate-like member is larger than the filter.
  • the plate-shaped member and the filter are arranged so that the outer edge of the filter is located inside the outer edge of the plate-shaped member in a plan view.
  • the outer edge of the filter is located inside the outer edge of the plate-shaped member in a plan view, even when the dust collected by the filter falls, the falling dust can be received by the plate-shaped member.
  • the air conditioning unit of the second viewpoint is the air conditioning unit of the first viewpoint
  • the plate-shaped member has a central portion and a non-central portion.
  • the central portion is a portion that overlaps the filter in a plan view.
  • the non-central part is a part that does not overlap with the filter in a plan view.
  • An opening that penetrates vertically is not formed in the central portion of the plate-shaped member. When dust falls from the filter, the central portion of the plate-shaped member receives the dust.
  • the air conditioning unit is configured so that most of the dust can be received by the plate-shaped member even when dust falls from the filter. As a result, the dust collected by the filter is suppressed from falling into the air-conditioned space.
  • the air conditioning unit of the third viewpoint is the air conditioning unit of the second viewpoint, and the plate-shaped member further has a wall portion.
  • the wall portion of the plate-shaped member extends upward from the outer edge of the central portion of the plate-shaped member, or extends upward from the non-central portion of the plate-shaped member.
  • the wall portion is provided here, it is possible to prevent the dust that falls from the filter and is received by the central portion of the plate-shaped member from moving sideways and falling into the air-conditioned space.
  • the air-conditioning unit of the fourth viewpoint is any of the air-conditioning units of the first to third viewpoints, and the first angle is 5 ° to 60 °.
  • the first angle is an angle formed by a virtual straight line in the vertical cross-sectional view and a vertical straight line passing through one end of the filter in the vertical cross-sectional view.
  • the cut surface of the vertical section is any vertical plane, including the centroid of the filter in plan view.
  • the virtual straight line in the vertical cross-sectional view is a straight line connecting one end of the filter in the vertical cross-sectional view and one end of the plate-shaped member in the vertical cross-sectional view close to one end of the filter.
  • the first angle is not less than 5 ° but has a certain size, even if the dust that has fallen from the filter falls slightly diagonally downward instead of directly below, the dust is generally removed by the plate-shaped member. Can receive.
  • the air-conditioning unit of the fifth viewpoint is any of the air-conditioning units of the first to fourth viewpoints, and an air outlet is formed on the side surface of the main body casing.
  • FIG. 5 is a vertical cross-sectional view showing the arrangement of the flat panel and the air filter viewed from the arrow VI of FIG.
  • the vertical cross-sectional view which shows the arrangement of the panel with a side wall of the indoor unit which concerns on modification 1 and a filter.
  • FIG. 1 is a diagram showing a refrigerant piping system of an air conditioner 10 having a plurality of indoor units and outdoor units.
  • the air conditioner 10 is a device that heats and cools a room in a building by performing a vapor compression refrigeration cycle operation.
  • the air conditioner 10 includes an outdoor unit 20 as a heat source unit, an indoor unit 30 as a large number of utilization units, and a first refrigerant connecting pipe 6 and a second refrigerant connecting pipe 7 connecting the outdoor unit 20 and the indoor unit 30. And have.
  • the refrigerant circuit of the air conditioner 10 is configured by connecting the outdoor unit 20, the indoor unit 30, and the refrigerant connecting pipes 6 and 7.
  • the refrigerant is sealed in the refrigerant circuit, and the refrigerating cycle operation is performed in which the refrigerant is compressed, cooled, depressurized, heated and evaporated, and then compressed again.
  • the refrigerant for example, one selected from R410A, R407C, R32, R134a, carbon dioxide, and the like is used.
  • the air-conditioned air (cold air or hot air) blown out from the indoor unit 30 is supplied from the blowout unit 55 to the air-conditioned space SP1 of the room via the duct 53.
  • the outdoor unit 20 is installed outside the building or in the basement of the building.
  • the outdoor unit 20 mainly includes a compressor 21, a four-way switching valve 22, an outdoor heat exchanger 23, an outdoor expansion valve 26, and an accumulator 29. By switching the four-way switching valve 22, the cooling operation and the heating operation are switched.
  • the outdoor heat exchanger 23 is a heat exchanger that functions as a radiator or evaporator for the refrigerant.
  • the outdoor unit 20 has an outdoor fan 27 for sucking outdoor air into the unit and discharging it to the outside again.
  • the outdoor fan 27 causes heat exchange between the outdoor air and the refrigerant flowing through the outdoor heat exchanger 23.
  • the indoor unit 30 is installed on the ceiling (including the space behind the ceiling) of each floor in the building.
  • Each indoor unit 30 mainly has an indoor expansion valve 41 which is a decompressor and an indoor heat exchanger 42 as a user-side heat exchanger.
  • the indoor expansion valve 41 is a mechanism for reducing the pressure of the refrigerant, and is an electric valve whose opening degree can be adjusted.
  • One end of the indoor expansion valve 41 is connected to the first refrigerant connecting pipe 6, and the other end is connected to the indoor heat exchanger 42.
  • the indoor heat exchanger 42 is a heat exchanger that functions as a refrigerant evaporator or radiator. One end of the indoor heat exchanger 42 is connected to the indoor expansion valve 41, and the other end is connected to the second refrigerant connecting pipe 7.
  • the indoor unit 30 includes an indoor fan 43 for sucking indoor air into the unit and supplying it to the room again, and exchanges heat between the indoor air and the refrigerant flowing through the indoor heat exchanger 42. Let me.
  • the blow-out unit 55 is installed at a place away from the indoor unit 30, and air-conditioned air sent from the indoor unit 30 through the duct 53 is taken into the room. It is a unit that blows out to the air-conditioned space SP1.
  • the outlet unit 55 is formed with one or a plurality of connection ports for connecting the duct 53 and an outlet 55a exposed to the air-conditioned space SP1.
  • both the indoor unit 30 and the blowout unit 55 are arranged in the installation space SP2 located above the air-conditioned space SP1 in the room.
  • This installation space SP2 is a space behind (above) the ceiling 90 of the room described later.
  • the indoor unit 30 is arranged above the ceiling 90 (space SP2) of the room including the air-conditioned space SP1.
  • the indoor unit 30 has a metal box member 31 and a bottom plate member 32.
  • the box member 31 and the bottom plate member 32 function as a main body casing.
  • the above-mentioned indoor expansion valve 41, indoor heat exchanger 42, and indoor fan 43 are also housed in the box member 31.
  • the indoor unit 30 includes a drain pan 46 for receiving condensed water in the indoor heat exchanger 42, a bell mouth 44 provided corresponding to the indoor fan 43, a connecting member 33 used for connecting to the duct 53, and the like. are doing.
  • the drain pan 46 and the bell mouth 44 are housed in the box member 31.
  • the connecting member 33 is fixed to each of the four side surfaces of the box member 31.
  • a blowout opening 31a is formed at a position facing the opening of the cylindrical connecting member 33.
  • the lower surface of the box member 31 is open.
  • the indoor heat exchanger 42 is generally in the shape of a square cylinder.
  • the indoor fan 43 is a turbo fan and blows out the air sucked from below to the side. The air blown out from the indoor fan 43 flows to the duct 53 through the indoor heat exchanger 42.
  • the drain pan 46 is a resin member.
  • a bottom plate member 32 is arranged under the drain pan 46.
  • the bottom plate member 32 is a member having a quadrangular outer edge in a plan view, and has a circular opening formed in the center.
  • the circular opening of the bottom plate member 32 serves as a suction port 32b for guiding air from below to the indoor fan 43.
  • the upper end of the canvas member 95 which will be described later, is detachably attached to the bottom plate member 32.
  • the bottom plate member 32 has a holding portion 32a that detachably holds the flat plate-shaped air filter 39.
  • the box member 31 is suspended from a beam (not shown) in the space SP2 behind the ceiling. In this state, a large gap G1 (see FIG. 4) is formed between the box member 31 and the bottom plate member 32 constituting the main body casing and the ceiling 90 in the height direction.
  • the indoor unit 30 has a flat panel 35, an annular frame 60, and a frame member at positions separated downward from the box member 31 and the bottom plate member 32 constituting the main body casing. Has 80 and. Further, the air filter 39 is arranged immediately below the bottom plate member 32.
  • Air filter 39 is a member having a substantially square shape in a plan view, and is fixed to a flange 38.
  • the air filter 39 is attached in a state parallel to the horizontal plane.
  • the flange 38 located on the outside of the air filter 39 is supported by the holding portion 32a of the bottom plate member 32 described above (see FIG. 4).
  • the flange 38 and the air filter 39 can be removed from the holding portion 32a by shifting the flange 38 from the holding portion 32a in a plane.
  • (2-2-2) Frame member The frame member 80 is fixed to the box member 31 via a support member (not shown).
  • the flat panel 35 and the annular frame 60 are detachably supported on the frame member 80.
  • the flat panel 35 is located below the suction port 32b of the bottom plate member 32 and the air filter 39 that covers the suction port 32b.
  • the annular frame 60 is an annular member having four sides. As shown in FIG. 4, the outer edge of the annular frame 60 is arranged so as to be adjacent to the inner edge of the frame member 80.
  • the annular frame 60 is attached to the frame member 80 by a detachable mechanism (not shown) composed of a claw or a spring member.
  • the flat panel 35 is a plate member made of resin that is substantially square in a plan view. Neither slits nor holes are formed in the flat panel 35. As shown in FIG. 6, the flat panel 35 has a central portion 35a located directly below the air filter 39 in the installed state, and an outer peripheral portion (non-central portion) 35b around the central portion 35a. However, there is no structural difference between the central portion 35a and the outer peripheral portion 35b, and the central portion 35a and the outer peripheral portion 35b are continuous and integral resin members. In other words, the central portion 35a is a portion of the flat panel 35 that overlaps with the air filter 39 in a plan view. The outer peripheral portion 35b is a portion of the flat panel 35 that does not overlap with the air filter 39 in a plan view.
  • the canvas member 95 is a thick woven fabric having a square tube shape that opens vertically.
  • the upper end of the canvas member 95 is fixed to the outside of the holding portion 32a of the bottom plate member 32.
  • the lower end of the canvas member 95 is connected to the upper end of the inner peripheral portion of the frame member 80.
  • the upper opening and the lower opening of the canvas member 95 are both square. Then, as shown in FIG. 4, the opening above the canvas member 95 is smaller than the opening below the canvas member 95.
  • FIG. 5 is a drawing for comparing the sizes of the flat panel 35 and the air filter 39 in a bottom view. Since the air filter 39 is hidden by the flat panel 35 in the bottom view, in FIG. 5, the flat panel 35 is shown by a two-dot chain line to display the air filter 39, and the flat panel 35 is seen through.
  • the flat panel 35 and the air filter 39 are arranged so that the outer edge of the air filter 39 is located inside the outer edge of the flat panel 35 in the bottom view.
  • the flat panel 35 is larger than the air filter 39. Therefore, when the indoor unit 30 is looked up from directly below, the air filter 39 is completely hidden by the flat panel 35.
  • the distance between the outer edge of the flat panel 35 and the outer edge of the air filter 39 in the bottom view is measured on each of the four sides, the distance differs depending on the cross section, as in the first distance L1 and the second distance L2 in FIG.
  • the vertical cross section having the smallest distance is the vertical cross section when cut at the vertical face VP shown in FIG. Is.
  • a vertical cross-sectional view when cut at this vertical VP is shown in FIG.
  • the virtual straight line IML connecting one end 39e of the air filter 39 and one end 35e of the flat panel 35 close to one end 39e of the air filter 39 is inclined with respect to the vertical plane.
  • the virtual straight line IML is tilted by a first angle A1 with respect to the vertical straight line VL passing through one end 39e of the air filter 39 in the vertical sectional view of FIG.
  • the indoor unit 30 is designed so that the first angle A1 is 5 ° to 60 °.
  • the preferable range of the first angle A1 is 5 ° to 40 ° in view of the miniaturization of the indoor unit 30 and the ventilation resistance value (size) of the air filter 39.
  • the dust DU1 can be dropped. Most of the dust DU1 is received by the flat panel 35. The dust received by the flat panel 35 will be accumulated on the flat panel 35 (see the dust DU2 in FIG. 6).
  • the indoor unit 30 of the air conditioner 10 of the present embodiment includes a box member 31 and a bottom plate member 32 that function as a main body casing, an air filter 39, and a flat panel 35. ..
  • the box member 31 and the bottom plate member 32 are installed above the air-conditioning target space SP1 and accommodate the indoor fan 43 and the indoor heat exchanger 42.
  • An air suction port 32b is formed on the lower surface of the bottom plate member 32.
  • the air filter 39 collects dust contained in the air passing through the suction port 32b.
  • the flat panel 35 is located below the air filter 39, as shown in FIGS. 4 and 6. In plan view, the flat panel 35 is larger than the air filter 39.
  • the flat panel 35 and the air filter 39 are arranged so that the outer edge of the air filter 39 is located inside the outer edge of the flat panel 35 in a plan view.
  • the dust DU1 (see FIG. 6) collected by the air filter 39 also falls due to the flat panel 35. You can receive the incoming dust.
  • the flat panel 35 has a central portion 35a and an outer peripheral portion 35b.
  • the central portion 35a is a portion that overlaps with the air filter 39 in a plan view.
  • the outer peripheral portion 35b is a portion that does not overlap with the air filter 39 in a plan view.
  • the central portion 35a of the flat panel 35 is not formed with an opening that penetrates vertically. When dust falls from the air filter 39, the central portion 35a of the flat panel 35 mainly receives the dust.
  • the indoor unit 30 is configured so that the flat panel 35 can receive most of the dust even when the dust falls from the air filter 39. There is. As a result, the dust DU1 collected by the air filter 39 is suppressed from falling into the air conditioning target space SP1.
  • the inclination of the virtual straight line IML connecting one end 39e of the air filter 39 and one end 35e of the flat panel 35 close to one end 39e of the air filter 39 is increased to some extent. It is set. More specifically, the first angle, which is the inclination of the virtual straight line IML with respect to the vertical plane, is set in the range of 5 ° to 60 °. Here, since the first angle is not less than 5 ° but has a certain size, even if the dust that has fallen from the air filter 39 falls slightly diagonally downward instead of directly below, most of the dust is flattened. It can be received by the panel 35.
  • the panel 135 shown in FIG. 7 has a wall portion 135c in addition to a central portion 135a corresponding to the central portion 35a of the flat panel 35 and an outer peripheral portion 135b corresponding to the outer peripheral portion 35b of the flat panel 35 described above. ing.
  • the wall portion 135c extends outward and diagonally upward from the outer peripheral portion 135b.
  • the wall portion 135c may extend directly above the outer peripheral portion 135b. Further, the wall portion 135c may be extended upward from the outer edge of the central portion 135a, and the outer peripheral portion 135b may be eliminated.
  • the indoor unit 30 is arranged in the installation space SP2 (the space above the ceiling 90) located above the air-conditioned space SP1 in the room.
  • the indoor unit 30 may be arranged in the air-conditioned space SP1 which is the space under the ceiling 90, and the entire indoor unit 30 may be suspended from the ceiling 90.
  • the ceiling 90 does not exist around (near) the flat panel 35, so that the flat panel 35 The size of the above in a plan view can be further increased.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

L'invention concerne une unité intérieure (30) d'un dispositif de climatisation (10) comprenant : un élément boîte (31) et un élément plaque inférieure (32) servant de boîtier de corps principal ; un filtre à air (39) ; et un panneau plat (35) positionné sous le filtre à air (39). Un orifice d'admission (32b) est formé sur une surface inférieure de l'élément plaque inférieure (32). Le filtre à air (39) collecte la poussière contenue dans l'air traversant l'orifice d'admission (32b). Dans une vue en plan, le panneau plat (35) est plus grand que le filtre à air (39). Dans la vue en plan, le panneau plat (35) et le filtre à air (39) sont agencés de telle sorte qu'un bord externe du filtre à air (39) soit positionné à l'intérieur d'un bord externe du panneau plat (35).
PCT/JP2020/012741 2019-03-29 2020-03-23 Unité de climatisation WO2020203416A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019068463A JP2020165619A (ja) 2019-03-29 2019-03-29 空調ユニット
JP2019-068463 2019-03-29

Publications (1)

Publication Number Publication Date
WO2020203416A1 true WO2020203416A1 (fr) 2020-10-08

Family

ID=72667734

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/012741 WO2020203416A1 (fr) 2019-03-29 2020-03-23 Unité de climatisation

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JP (1) JP2020165619A (fr)
WO (1) WO2020203416A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188019U (fr) * 1981-05-27 1982-11-29
JP2001027428A (ja) * 1999-07-14 2001-01-30 Daikin Ind Ltd 空気調和装置
JP2007303770A (ja) * 2006-05-15 2007-11-22 Daikin Ind Ltd 空気調和装置
JP2012077952A (ja) * 2010-09-30 2012-04-19 Daikin Industries Ltd 空気調和機の室内機
JP2012107864A (ja) * 2012-03-02 2012-06-07 Mitsubishi Electric Corp 天井埋込型空気調和機
JP2015506450A (ja) * 2012-02-17 2015-03-02 三菱電機株式会社 空気調和機、及び空気調和機の設置構成

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4247635B2 (ja) * 2006-02-09 2009-04-02 Ｔｏｔｏ株式会社 除湿機能付き浴室乾燥機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188019U (fr) * 1981-05-27 1982-11-29
JP2001027428A (ja) * 1999-07-14 2001-01-30 Daikin Ind Ltd 空気調和装置
JP2007303770A (ja) * 2006-05-15 2007-11-22 Daikin Ind Ltd 空気調和装置
JP2012077952A (ja) * 2010-09-30 2012-04-19 Daikin Industries Ltd 空気調和機の室内機
JP2015506450A (ja) * 2012-02-17 2015-03-02 三菱電機株式会社 空気調和機、及び空気調和機の設置構成
JP2012107864A (ja) * 2012-03-02 2012-06-07 Mitsubishi Electric Corp 天井埋込型空気調和機

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