WO2024085145A1 - Dispositif de décharge et climatiseur - Google Patents

Dispositif de décharge et climatiseur Download PDF

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Publication number
WO2024085145A1
WO2024085145A1 PCT/JP2023/037536 JP2023037536W WO2024085145A1 WO 2024085145 A1 WO2024085145 A1 WO 2024085145A1 JP 2023037536 W JP2023037536 W JP 2023037536W WO 2024085145 A1 WO2024085145 A1 WO 2024085145A1
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WO
WIPO (PCT)
Prior art keywords
discharge
discharge device
connector
discharge electrode
electrode
Prior art date
Application number
PCT/JP2023/037536
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English (en)
Japanese (ja)
Inventor
哲也 江崎
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2024085145A1 publication Critical patent/WO2024085145A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/66—Applications of electricity supply techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • H01T19/04—Devices providing for corona discharge having pointed electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere

Definitions

  • the present invention relates to a discharge device and an air conditioner.
  • the electric dust collecting unit described in Patent Document 1 includes a discharge electrode, a low-voltage terminal, and a rib that constitute a discharge device.
  • the rib is provided between the discharge electrode and the low-voltage terminal. The rib is higher than the position of the discharge electrode to prevent leakage current.
  • the ribs of the electric dust collecting unit described in Patent Document 1 become covered with water droplets and dirt due to condensation. If water droplets and dirt due to condensation adhere to the ribs, they may cause leakage current to flow along the surface if the ribs have a simple shape.
  • the present invention was made in consideration of the above problems, and aims to provide a discharge device that can sufficiently suppress leakage current even in harsh environments.
  • the discharge device of the first aspect of the present invention comprises a connector, a booster, a discharge electrode, and a main body.
  • An external voltage is applied to the connector.
  • the booster boosts the voltage applied to the connector.
  • the discharge electrode discharges with the voltage boosted by the booster.
  • the main body houses the connector and the discharge electrode.
  • the main body has an opening that surrounds the discharge electrode, and a plurality of folded parts that are folded back from a predetermined direction. At least one of the plurality of folded parts is formed in the opening.
  • An air conditioner includes the discharge device according to the first aspect, a voltage application unit, and a blower unit.
  • the voltage application unit applies a voltage to the connector of the discharge device.
  • the blower unit blows air.
  • the discharge device is positioned in a direction such that the air blown by the blower unit passes through the protective frame.
  • the discharge device and air conditioner of the present invention can adequately suppress leakage current.
  • FIG. 1 is a partially cutaway perspective view showing a discharge device according to a first embodiment.
  • 2 is an enlarged perspective view showing a vertical cross section of the discharge device of the first embodiment.
  • FIG. 2 is an exploded perspective view showing an enlarged view of a case and a cover of a main body of the discharge device of the first embodiment.
  • FIG. FIG. 11 is a perspective view showing a discharge device according to a second embodiment.
  • FIG. 6 is an enlarged vertical cross-sectional view showing a discharge device according to a second embodiment.
  • FIG. 11 is a perspective view showing a modified example of the discharge device of the second embodiment.
  • FIG. 1 is a perspective view of an air conditioner equipped with a discharge device.
  • FIG. 2 is a perspective view of a discharge device disposed in the air conditioner.
  • the discharge device 100 according to the first embodiment will be described with reference to Figures 1 to 3.
  • FIG. 1 is a partially cutaway perspective view showing the discharge device 100 of embodiment 1.
  • FIG. 2 is an enlarged perspective view showing a vertical cross section of the discharge device 100 of embodiment 1.
  • FIG. 3 is an enlarged exploded perspective view showing the case 61 and cover 65 of the main body 60 of the discharge device 100 of embodiment 1.
  • the discharge device 100 includes a connector 70, a booster 81, a discharge electrode 30, and a main body 60.
  • a voltage is applied to the connector 70 from the outside.
  • the booster 81 is composed of a printed circuit board and a step-up transformer (neither of which are shown) that are part of an electronic component group 80, and boosts the voltage applied to the connector 70.
  • the discharge electrode 30 discharges using the voltage boosted by the booster 81.
  • the main body 60 houses the connector 70 and the discharge electrode 30.
  • the main body 60 has an opening 66 that surrounds the discharge electrode 30, and multiple folded parts 50 that are folded back from a predetermined direction. At least one of the multiple folded parts 50 is formed in the opening 66. Therefore, the folded parts 50 are located on the creeping path 40 in the main body 60.
  • the creeping path 40 is a path through which electric charge due to discharge of the discharge electrode 30 may flow to the connector 70, but the folded parts 50 prevent the flow of electric charge.
  • the surface path 40 has multiple turn-back sections 50, making it long and complex, which adequately impedes the flow of charge. Therefore, the discharge device 100 can adequately suppress leakage current. Also, because the surface path 40 has multiple turn-back sections 50, the surface path 40 becomes long without the need to enlarge the main body 60. Therefore, the discharge device 100 can adequately suppress leakage current without enlarging its size.
  • the base end of the discharge electrode 30 is connected to the booster section 81, and the tip discharges.
  • the discharge electrode 30 is preferably a rod electrode (not shown) or a needle electrode 30 rather than a wire electrode (not shown).
  • a wire electrode is an electrode made of a bundle of numerous conductive fibers (e.g., metal fibers).
  • a rod electrode is an electrode made of a rod-shaped conductive material.
  • a needle electrode 30 is an electrode made of a needle-shaped conductive material whose tip is thinner than the base end.
  • a wire electrode does not discharge simultaneously from the tips of all conductive fibers, but rather discharges separately from the tip of each conductive fiber.
  • rod electrodes and needle electrodes 30 discharge from the tip of a single conductive material. Therefore, compared to wire electrodes, rod electrodes and needle electrodes 30 discharge more stably.
  • the needle electrode 30 has a sharpened needle shape, meaning that the shape makes it easy for the electric field to concentrate at the single point at the tip where the discharge occurs, and therefore discharges more stably than a rod electrode.
  • the discharge device 100 may include one discharge electrode 30, or two or more discharge electrodes 30, 35.
  • the discharge device 100 includes two or more discharge electrodes 30, 35, it is sufficient that a plurality of folds 50 are formed on the creeping path 40 from at least the discharge electrode 30 closest to the connector 70. This is because it is the discharge electrode 30 closest to the connector 70 that is most susceptible to leak current.
  • one of the two discharge electrodes 30, 35 emits positive ions when discharged.
  • the positive ions are cluster ions [H + ( H2O ) m (m is any positive number equal to or greater than zero)] in which a plurality of water molecules are clustered around a hydrogen ion (H + ).
  • the other of the two discharge electrodes 30, 35 emits negative ions when discharged.
  • the negative ions are cluster ions [ O2- ( H2O ) n (n is any positive number equal to or greater than zero)] in which a plurality of water molecules are clustered around an oxygen ion ( O2- ).
  • the multiple fold portions 50 are, in order of proximity to the discharge electrode 30, a first fold portion 51, a second fold portion 52, and a third fold portion 53.
  • the predetermined direction 13 of the first fold portion 51 and the third fold portion 53 is different from the predetermined direction 20 of the second fold portion 52.
  • the predetermined direction 13 of the first fold portion 51 and the third fold portion 53 is the direction from the discharge electrode 30 to the connector 70 (X direction).
  • the predetermined direction 20 of the second fold portion 52 is a direction (Z direction) perpendicular to the direction from the discharge electrode 30 to the connector 70.
  • the predetermined direction 13 of any of the fold portions 51, 53 is different from the predetermined direction 20 of the other fold portions 52.
  • the discharge device 100 ensures that the folded sections 50 do not allow water droplets and dirt to flow, regardless of the position. Therefore, the discharge device 100 can sufficiently suppress leakage current, regardless of the position.
  • the predetermined direction 13 of any one of the folded portions 51, 53 is perpendicular to the predetermined direction 20 of the other folded portion 52.
  • the folded portion 50 is reliably secured so that water droplets, dirt, etc. do not flow, regardless of the position of the discharge device 100. Therefore, the discharge device 100 can reliably suppress leakage current, regardless of the position.
  • the main body 60 has a protective frame 67.
  • the protective frame 67 protects the tip of the discharge electrode 30.
  • the protective frame 67 has a number of large ventilation holes 68 and a number of small ventilation holes 69. Of the number of small ventilation holes 69, the side closest to the discharge electrode 30 constitutes the second folded portion 52.
  • the protective frame 67 is provided in the opening 66. Therefore, it can be said that the second folded portion 52 is formed in the opening 66.
  • the main body 60 has a case 61 and a cover 65.
  • the case 61 has the connector 70 and the discharge electrode 30 arranged therein.
  • the cover 65 is attached to the case 61.
  • the case 61 has a portion that is in close contact with the cover 65 at least between the discharge electrode 30 and the connector 70.
  • the case 61 and the cover 65 are in close contact with each other, so there is no gap at the boundary between the case 61 and the cover 65. Therefore, no leakage current occurs through the boundary, and leakage current can be sufficiently suppressed.
  • the case 61 has a partition wall 62.
  • the partition wall 62 surrounds the discharge electrode 30.
  • the partition wall 62 is, for example, in the shape of a rectangular frame in a plan view. In the case 61, it is the upper end of the partition wall 62 that comes into close contact with the cover 65. Of the upper end of the partition wall 62, at least one side that is located between the discharge electrode 30 and the connector 70 comes into close contact with the cover 65. Of the upper end of the partition wall 62, it is preferable that all sides (four sides), that is, the entire circumference, come into close contact with the cover 65. This is because the more parts that come into close contact, the more paths that can generate leakage current are blocked.
  • the cover 65 and the case 61 are preferably bonded together using an adhesive. This is because bonding using an adhesive reliably prevents gaps.
  • the cover 65 and the case 61 are preferably bonded together by abutment rather than engagement using claws or the like. Abutment makes manufacturing easier.
  • the case 61 further includes an electronic component group 80.
  • the electronic component group 80 is disposed inside the partition wall 62.
  • the electronic component group 80 electrically connects the connector 70 and the discharge electrode 30.
  • the electronic component group 80 includes a booster section 81 and various electronic components (not shown) to enable discharge at the discharge electrode 30.
  • the case 61 further includes an insulating material 63.
  • the insulating material 63 is filled inside the partition wall 62.
  • the insulating material 63 embeds the base end side of the discharge electrode 30 and the electronic component group 80.
  • the insulating material 63 is preferably a resin. If the insulating material 63 is a resin, it is possible to facilitate manufacturing. [Embodiment 2]
  • FIG. 4 is a perspective view showing the discharge device 100 of embodiment 2.
  • FIG. 5 is an enlarged longitudinal cross-sectional view showing the discharge device 100 of embodiment 2.
  • FIG. 6 is a perspective view showing a modified example of the discharge device 100 of embodiment 2.
  • the cover 65 has an opening 66.
  • the opening 66 surrounds the discharge electrode 30.
  • the multiple folded portions 50 are formed in the opening 66.
  • the predetermined direction 13 of the multiple folded portions 50 intersects with the direction from the discharge electrode 30 to the connector 70.
  • the predetermined direction 13 of the multiple folds 50 intersects with the direction from the discharge electrode 30 to the connector 70, making the creeping path 40 long and complex, sufficiently impeding the flow of charge. Therefore, the discharge device 100 can sufficiently suppress leakage current. Also, because the multiple folds 50 are formed in the opening 66, the creeping path 40 becomes long without the need to increase the size of the main body 60. Therefore, the discharge device 100 can sufficiently suppress leakage current without increasing the size.
  • the direction of the connector 70 from the discharge electrode 30 is, for example, the shortest direction from the discharge electrode 30 to the connector 70 (X direction). It is preferable that the predetermined direction 13 ( ⁇ Y direction) of the multiple folded parts 50 and the direction from the discharge electrode 30 to the connector 70 (X direction) are perpendicular to each other. By making them perpendicular, the multiple folded parts 50 further hinder the flow of charge, thereby further suppressing leakage current.
  • the tip of the discharge electrode 30 protrudes from the opening 66. More specifically, the base end of the discharge electrode 30 protrudes from the opening 66 towards the case 61 (-Z side), and the tip protrudes from the opening 66 to the opposite side of the case 61 (Z side).
  • the tip of the discharge electrode 30 is protruded from the opening 66, it is possible to increase the number of ions emitted by discharge. Generally, as the number of ions emitted increases, the charge stored in the opening 66 (the charge at the opening 66) also increases, making it easier for leakage current to occur. However, by forming multiple folded portions 50 at the opening 66, leakage current can be suppressed. Therefore, the discharge device 100 can increase the number of ions emitted while suppressing leakage current.
  • the cover 65 has a removable piece 90.
  • the removable piece 90 has an opening 66 formed therein. When the removable piece 90 is removed, the opening 66 shown in Figures 4 and 5 becomes a larger opening 96 as shown in Figure 6.
  • the predetermined direction 20 (-Z direction) of the multiple folded portions 50 formed in the opening 96 is perpendicular to the direction (X direction) from the discharge electrode 30 to the connector 70. More specifically, the predetermined direction 20 of the multiple folded portions 50 is the direction (-Z direction) from the cover 65 to the case 61.
  • the predetermined direction 20 of the multiple folded parts 50 is the direction from the cover 65 to the case 61 (-Z direction)
  • the discharge device 100 of the second embodiment is illustrated without the protective frame 67, but like the first embodiment, it may have the protective frame 67 shown in Figs. 1 to 3.
  • the protective frame 67 will be described in detail below with reference to Fig. 1.
  • the cover 65 has a protective frame 67.
  • the protective frame 67 can protect the tips of the discharge electrodes 30 and 35.
  • the cover 65 has a protective frame 67 for each discharge electrode 30, 35.
  • a plurality of large ventilation holes 68 in the protective frame 67 open in the ⁇ Y direction.
  • a plurality of small ventilation holes 69 in the protective frame 67 open in the ⁇ X direction.
  • the arrangement of the large ventilation holes 68 and small ventilation holes 69 is not limited to the example shown in Figure 1, and may be arranged so that the wind to the protective frame 67 is guided to the discharge electrodes 30, 35 and exits from the protective frame 67.
  • FIG. 7 is a perspective view of an air conditioner 110 equipped with a discharge device 100.
  • FIG. 8 is a perspective view of the discharge device 100 arranged in the air conditioner 110.
  • the air conditioner 110 is an air conditioner 110, an air purifier, a humidifier, or a dehumidifier.
  • FIG. 7 shows an example in which the air conditioner 110 is an air conditioner 110.
  • the air conditioner 110 includes a discharge device 100, a voltage application unit 101, and a blower unit 102.
  • the discharge device 100 is the discharge device 100 of embodiment 1 or 2.
  • the voltage application unit 101 applies a voltage to the connector 70 of the discharge device 100.
  • the blower unit 102 is, for example, a sirocco fan, and blows wind W.
  • the air conditioner 110 further includes a heat exchange fin 103, an indoor drain pan 104, a wall-side drain pan 105, up-down airflow louvers 106, and a curved plate 107.
  • the heat exchange fin 103 is arranged so as to surround the blower section 102 from the indoor side, the top, and the wall side.
  • the indoor drain pan 104 is arranged below the indoor side of the heat exchange fin 103.
  • the wall-side drain pan 105 is arranged below the wall side of the heat exchange fin 103.
  • the curved plate 107 is arranged so as to surround the blower section 102 from the wall side and below.
  • the up-down airflow louvers 106 are arranged below the indoor drain pan 104. The wind W from the blower section 102 is guided by the up-down airflow louvers 106 between the indoor drain pan 104 and the curved plate 107 and sent into the room.
  • the discharge device 100 is disposed on the indoor drain pan 104 side of the air conditioner 110, between the indoor drain pan 104 and the curved plate 107. As shown in FIG. 8, the discharge device 100 is disposed in a direction such that the wind W from the blower 102 passes through the protective frame 67.
  • the wind W passing through the protective frame 67 refers to a state in which the wind W to the protective frame 67 is guided to the discharge electrodes 30, 35 and exits from the protective frame 67. Specifically, this refers to a state in which the wind W that enters from one of the large air vents 68 formed in the protective frame 67 exits from the other large air vent 68 formed in the protective frame 67 after reaching the discharge electrodes 30, 35.
  • the air conditioner 110 can ensure that the wind W entering the room contains sufficient ions while suppressing leakage current.
  • the present invention is not limited to the above embodiments, and can be implemented in various aspects without departing from the gist of the present invention.
  • the discharge device 100 shown in FIG. 8 may be rotated 180° around the X-axis.
  • various inventions can be formed by appropriately combining multiple components disclosed in each of the above embodiments. For example, some components may be deleted from all the components shown in the embodiments. Furthermore, components from the first and second embodiments may be appropriately combined. Furthermore, components from different embodiments may be appropriately combined.
  • the drawings are mainly schematic views of each component for ease of understanding, and the thickness, length, number, spacing, etc. of each component shown in the drawings differ from the actual ones due to the convenience of drawing.
  • the speed, material, shape, dimensions, etc. of each component shown in the above embodiments are merely examples and are not particularly limited, and various modifications are possible within a range that does not substantially deviate from the configuration of the present invention.
  • the main body 60 has been described as housing the connector 70 and the discharge electrodes 30, 35.
  • the connector 70 and the discharge electrodes 30, 35 are not limited to being completely housed in the main body 60, and may be partially housed in the main body 60. In the example shown in FIG. 8, the connector 70 is partially housed in the main body 60 (case 61).
  • the discharge device 100 may include both the folded portion 50 of embodiment 1 and the folded portion 50 of embodiment 2. By including both the folded portions 50 of embodiments 1 and 2, the discharge device 100 can reliably suppress leakage current.
  • the present invention provides a discharge device and an air conditioner, and has industrial applicability.

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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)
  • Plasma & Fusion (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

L'invention concerne un dispositif de décharge (100) comprenant un connecteur (70), une section d'amplification (81), une électrode de décharge (30) et un corps (60). Une tension est appliquée au connecteur (70) depuis l'extérieur. La section d'amplification (81) amplifie la tension appliquée au connecteur (70). L'électrode de décharge (30) se décharge en raison de la tension amplifiée par la section d'amplification (81). Le corps (60) reçoit le connecteur (70) et l'électrode de décharge (30). Le corps (60) présente une ouverture (66) entourant l'électrode de décharge (30), et une pluralité de parties pliées (50) qui sont repliées depuis des directions prescrites (13), (20). Au moins une partie pliée de la pluralité de parties pliées (50) est formée dans l'ouverture (66).
PCT/JP2023/037536 2022-10-21 2023-10-17 Dispositif de décharge et climatiseur WO2024085145A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-169082 2022-10-21
JP2022169082 2022-10-21

Publications (1)

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WO2024085145A1 true WO2024085145A1 (fr) 2024-04-25

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PCT/JP2023/037536 WO2024085145A1 (fr) 2022-10-21 2023-10-17 Dispositif de décharge et climatiseur

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01101567A (ja) * 1987-10-14 1989-04-19 Fuji Xerox Co Ltd 放電装置
JP2006284164A (ja) * 2005-03-07 2006-10-19 Matsushita Electric Ind Co Ltd 空気調和機
JP2014032783A (ja) * 2012-08-02 2014-02-20 Sharp Corp イオン発生装置およびそれを用いた電気機器
JP2015115159A (ja) * 2013-12-11 2015-06-22 シャープ株式会社 イオン発生装置および電気機器
JP2016006748A (ja) * 2014-06-20 2016-01-14 シャープ株式会社 イオン発生装置および電気機器
WO2016042694A1 (fr) * 2014-09-19 2016-03-24 ダイキン工業株式会社 Unité de décharge
JP2018140362A (ja) * 2017-02-28 2018-09-13 株式会社富士通ゼネラル 電気集塵ユニット、および電気集塵ユニットを備えた空気調和機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01101567A (ja) * 1987-10-14 1989-04-19 Fuji Xerox Co Ltd 放電装置
JP2006284164A (ja) * 2005-03-07 2006-10-19 Matsushita Electric Ind Co Ltd 空気調和機
JP2014032783A (ja) * 2012-08-02 2014-02-20 Sharp Corp イオン発生装置およびそれを用いた電気機器
JP2015115159A (ja) * 2013-12-11 2015-06-22 シャープ株式会社 イオン発生装置および電気機器
JP2016006748A (ja) * 2014-06-20 2016-01-14 シャープ株式会社 イオン発生装置および電気機器
WO2016042694A1 (fr) * 2014-09-19 2016-03-24 ダイキン工業株式会社 Unité de décharge
JP2018140362A (ja) * 2017-02-28 2018-09-13 株式会社富士通ゼネラル 電気集塵ユニット、および電気集塵ユニットを備えた空気調和機

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