WO2020255381A1 - Unité intérieure pour climatiseur - Google Patents

Unité intérieure pour climatiseur Download PDF

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Publication number
WO2020255381A1
WO2020255381A1 PCT/JP2019/024734 JP2019024734W WO2020255381A1 WO 2020255381 A1 WO2020255381 A1 WO 2020255381A1 JP 2019024734 W JP2019024734 W JP 2019024734W WO 2020255381 A1 WO2020255381 A1 WO 2020255381A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan motor
indoor unit
compression
holding case
air
Prior art date
Application number
PCT/JP2019/024734
Other languages
English (en)
Japanese (ja)
Inventor
賢治 鎌田
Original Assignee
東芝キヤリア株式会社
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 東芝キヤリア株式会社 filed Critical 東芝キヤリア株式会社
Priority to EP19934140.5A priority Critical patent/EP3988848A4/fr
Priority to CN201980097606.2A priority patent/CN113994148B/zh
Priority to PCT/JP2019/024734 priority patent/WO2020255381A1/fr
Priority to JP2021528601A priority patent/JP7265628B2/ja
Publication of WO2020255381A1 publication Critical patent/WO2020255381A1/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
    • F24F1/0018—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
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

Definitions

  • An embodiment of the present invention relates to an indoor unit of an air conditioner.
  • the fan motor in an indoor unit of an air conditioner having a configuration in which a cross flow fan forming an air flow is driven by a fan motor, the fan motor is held inside a holding case and held.
  • the case is incorporated inside the indoor unit, and the portion of the holding case opposite to the motor shaft is fixed by, for example, screwing.
  • the fan motor can be easily installed in the indoor unit, and the manufacturability of the indoor unit can be improved.
  • the fan motor can be easily removed from the indoor unit, and the maintainability of the indoor unit can be improved.
  • the fan motor is firmly fixed in the portion of the holding case opposite to the motor shaft, but the fan motor is sufficiently fixed in the portion of the holding case on the motor shaft side. Not. Therefore, there is a concern that the vibration generated when the fan motor is driven cannot be sufficiently absorbed, and there is also a concern that the noise generated due to the vibration of the fan motor cannot be sufficiently suppressed.
  • the present embodiment provides an indoor unit of an air conditioner capable of sufficiently suppressing vibration and noise generated when the fan motor is driven.
  • the indoor unit of the air conditioner according to the present embodiment includes a cross flow fan that sucks indoor air from an air suction port and blows it out into the room from an air outlet, a fan motor that drives the cross flow fan, and the like.
  • the vibration-proof member that absorbs the vibration generated when the fan motor is driven and the holding case that holds the fan motor inside are fitted into the fitting portion, the vibration-proof member in the holding case is compressed.
  • a compression unit is provided.
  • the indoor unit 10 of the air conditioner illustrated in FIG. 1 constitutes an air conditioner together with an outdoor unit (not shown) provided outdoors.
  • the indoor unit 10 is provided with a cross-flow fan 12 and the like inside a rectangular indoor unit main body 11 that constitutes the outer shell thereof.
  • An air suction port 13 is provided in the upper part of the indoor unit main body 11, and an air outlet 14 is provided in the lower part of the indoor unit main body 11. Further, inside the indoor unit main body 11, a ventilation path 15 is provided from the air suction port 13 to the air outlet 14.
  • An air filter (not shown), a heat exchanger (not shown), a cross flow fan 12, a louver 16 and the like are provided in the air passage 15 from the upstream side on the air suction port 13 side to the downstream side on the air outlet 14 side. Has been done.
  • the air filter captures foreign matter contained in the air sucked from the air suction port 13.
  • the heat exchanger heats or cools the air by exchanging heat with the air sucked from the air suction port 13.
  • the cross-flow fan 12 sucks indoor air from the air suction port 13 and forms a flow of air blown out from the air outlet 14 through the air passage 15 into the room.
  • the louver 16 adjusts the direction of the air blown from the air outlet 14.
  • a fan motor 100 for driving the cross flow fan 12 is provided inside the indoor unit main body 11, and inside the machine room 17 provided on the right side of the ventilation path 15 when viewed from the front side of the indoor unit 10.
  • the fan motor 100 includes a substantially cylindrical motor main body 101 and a motor shaft 102.
  • a stator and a rotor (not shown) are housed inside the motor body 101.
  • the motor main body 101 has a well-known structure in which a columnar rotor is rotatably provided inside an annular stator.
  • the motor shaft 102 is provided as a rotation center axis of the rotor so as to rotate integrally with the rotor.
  • the motor shaft 102 protrudes from one end surface of the fan motor 100 in the axial direction, in this case, the end surface on the left side when viewed from the front side of the indoor unit 10, but the other end surface of the fan motor 100 in the axial direction, in this case.
  • the structure is such that it does not protrude from the end surface on the right side when viewed from the front side of the indoor unit 10.
  • the fan motor 100 is incorporated inside the machine room 17 while being held inside the holding case 200.
  • the entire holding case 200 is made of, for example, a resin material.
  • the holding case 200 has a substantially circular shape and accommodates the entire motor body 101 of the fan motor 100.
  • a plurality of holding cases 200, in this case, are formed by combining two case forming members 201A and 201B.
  • a locking projection 202A provided on the case forming member 201A is provided on the case forming member 201B on one end side of the holding case 200 in the axial direction, in this case, a portion on the left side when viewed from the front side of the indoor unit 10. It is locked to the locked frame portion 202B. As a result, the state in which the case forming member 201A and the case forming member 201B are combined is maintained.
  • the screw hole portion 203A and the case forming member 201B provided in the case forming member 201A are provided.
  • the screw hole portion 203B provided in the above is fastened together with the screw 204. As a result, the state in which the case forming member 201A and the case forming member 201B are combined is maintained.
  • a plurality of window portions 205 are provided on the peripheral surface of the holding case 200.
  • the window portion 205 is a hole portion that opens in a rectangular shape. The shape, size, number, and the like of the window portion 205 can be appropriately changed.
  • the side peripheral surface of the motor main body portion 101 of the fan motor 100 is exposed. Therefore, the holding case 200 can release the heat generated from the fan motor 100, particularly the motor main body 101, to the outside through the window 205 when the holding case 200 is driven. Therefore, the heat generated from the fan motor 100 is less likely to be trapped inside the holding case 200.
  • one end surface of the holding case 200 in the axial direction in this case, the end surface on the left side when viewed from the front side of the indoor unit 10, is provided with a compression portion 206 located at the center thereof.
  • the compression portion 206 is integrally provided on one end surface of the holding case 200 in the axial direction, and projects substantially in a circular shape from one end surface of the holding case 200 in the axial direction toward the left.
  • the compression unit 206 has a plurality of, in this case, four slits 206a at its outer edge. In this case, the plurality of slits 206a are arranged at equal intervals at the outer edge portion of the compression portion 206.
  • the compression unit 206 Since the compression unit 206 has a plurality of slits 206a, the compression unit 206 has a plurality of, in this case, four compression piece units 206b between the slits 206a.
  • the plurality of compression piece portions 206b can be elastically deformed inward in the radial direction of the compression portion 206 by applying an external force.
  • each of the tip portions of the plurality of compression piece portions 206b is provided with holding portions 206c for pressing the vibration-proof rubber 300, which will be described later.
  • the plurality of pressing portions 206c are arranged in an annular shape around the motor shaft 102.
  • the anti-vibration rubber 300 is housed together with the motor main body 101 of the fan motor 100.
  • the anti-vibration rubber 300 is an example of an anti-vibration member, and in this case, the anti-vibration rubber 300 is housed inside the compression portion 206 of the holding case 200.
  • the anti-vibration rubber 300 has an annular shape, and is arranged inside the compression portion 206 so as to surround the circumference of the motor shaft 102 of the fan motor 100.
  • the anti-vibration rubber 300 mainly has a function of absorbing vibration generated when the fan motor is driven.
  • the anti-vibration rubber 300 is housed not only on the motor shaft 102 side but also on the side opposite to the motor shaft 102.
  • the anti-vibration rubber 300 on the opposite side of the motor shaft 102 is made of the same material as the anti-vibration rubber 300 on the motor shaft 102 side, and is also formed to have the same size, the same shape, and the same thickness.
  • the anti-vibration rubber 300 on the opposite side of the motor shaft 102 may be formed of a different material from the anti-vibration rubber 300 on the motor shaft 102 side, or may be formed in a different size, a different shape, and a different thickness. May be good.
  • a partition wall portion 19 for partitioning the ventilation path 15 and the machine room 17 is provided inside the indoor unit main body portion 11.
  • the partition wall portion 19 is a multiple wall portion, in this case a double wall portion, and includes a ventilation path side wall portion 19A and a machine room side wall portion 19B.
  • the side wall portion 19A of the ventilation path is provided with a shaft insertion hole 20A that opens in a circular shape.
  • the motor shaft 102 of the fan motor 100 is inserted into the shaft insertion hole 20A from the machine room 17 side toward the air passage path 15. Then, the tip end portion of the motor shaft 102 of the fan motor 100 inserted through the shaft insertion hole 20A is connected to the cross flow fan 12 in the ventilation path 15.
  • the fan motor 100 is configured to be able to rotate the cross flow fan 12 via the motor shaft 102.
  • the side wall portion 19B of the machine room is provided with a fitting hole portion 400 that opens in a circular shape.
  • the fitting hole portion 400 is an example of the fitting portion.
  • the opening diameter of the fitting hole 400 is larger than the opening diameter of the shaft insertion hole 20A.
  • the axial center of the fitting hole portion 400 is configured to coincide with the axial center of the axial insertion hole 20A.
  • the compression portion 206 of the holding case 200 that holds the motor body portion 101 of the fan motor 100 is fitted into the fitting hole portion 400.
  • the size DA of the fitting hole portion 400 is the size DB of the compression portion 206 in the natural state in which the fitting hole portion 400 is not fitted, in other words.
  • the size DB that is, the diameter dimension DB of the compression unit 206 in the state where the plurality of compression piece portions 206b are not elastically deformed is slightly smaller.
  • the size DA of the fitting hole portion 400 is at least slightly smaller than the size DB of the tip portion of the compression portion 206 in the natural state.
  • the size DA of the fitting hole portion 400 may be smaller than the diameter dimension at any portion between the tip end portion and the base end portion of the compression portion 206 in the natural state.
  • the compression portion 206 of the holding case 200 is fitted into the fitting hole portion 400, the plurality of compression piece portions 206b are pressed against the inner peripheral surface of the fitting hole portion 400, and the compression piece is pressed.
  • the portion 206b elastically deforms inward in the radial direction.
  • the anti-vibration rubber 300 inside the compression portion 206 is pressed by the plurality of compression piece portions 206b and compressed.
  • the side peripheral surface of the compression portion 206 that is, the side surface of the plurality of compression piece portions 206b has a tapered shape that gradually narrows toward the fitting hole portion 400 side, that is, from the base end portion to the tip end portion. I'm doing it. Therefore, as the compression portion 206 is fitted into the fitting hole portion 400, the plurality of compression piece portions 206b are elastically deformed inward in the radial direction, thereby increasing the compression strength of the anti-vibration rubber 300. Can be strengthened.
  • the compression portion 206 of the holding case 200 holding the motor body portion 101 of the fan motor 100 is fitted into the fitting hole portion 400.
  • the anti-vibration rubber 300 in the compression portion 206 of the holding case 200 can be compressed by the elastically deforming compression portion 206.
  • the compressed anti-vibration rubber 300 can increase the fixing strength of the fan motor 100 on the motor shaft 102 side. Therefore, according to the indoor unit 10, the fan motor 100 is sufficiently fixed not only in the portion opposite to the motor shaft 102 fixed by the screw 204 but also in the portion of the holding case 200 on the motor shaft 102 side. This makes it possible to sufficiently suppress vibration and noise generated when the fan motor 100 is driven, as compared with the conventional configuration.
  • the compression unit 206 is integrally provided in the holding case 200.
  • the holding case 200 holding the motor main body 101 of the fan motor 100 is attached to the inside of the indoor unit main body 11, and at the same time, the compression portion 206 is fitted into the fitting hole 400. be able to. Therefore, the fan motor 100 can be easily installed in the indoor unit main body 11, and the manufacturability of the indoor unit 10 can be improved.
  • the compression unit 206 has a plurality of slits 206a. According to this configuration, when the compression portion 206 is fitted into the fitting hole portion 400, the compression portion 206 can be easily elastically deformed, and the vibration-proof rubber 300 can be compressed more efficiently.
  • a plurality of slits 206a are arranged at equal intervals in the outer edge portion of the compression portion 206. According to this configuration, the anti-vibration rubber 300 can be compressed evenly from the outer peripheral portion of the anti-vibration rubber 300 by the compression unit 206, and the vibration can be absorbed evenly by the anti-vibration rubber 300.
  • the side peripheral surface of the compression portion 206 that is, the surface that comes into contact with the inner peripheral surface of the fitting hole portion 400 when the fan motor 100 is assembled, faces the fitting hole portion 400 side. It has a tapered shape that gradually becomes thinner. According to this configuration, as the compression portion 206 is fitted into the fitting hole portion 400, the compression strength of the anti-vibration rubber 300 by the compression portion 206 can be increased, and the compression of the anti-vibration rubber 300 can be more reliably performed. It can be carried out.
  • the size of the fitting hole portion 400 is slightly smaller than the size of the compression portion 206 in the natural state where the fitting hole portion 400 is not fitted. According to this configuration, as the compression portion 206 is fitted into the fitting hole portion 400, the compression strength of the anti-vibration rubber 300 by the compression portion 206 can be increased, and the compression of the anti-vibration rubber 300 can be more reliably performed. It can be carried out.
  • the anti-vibration member is not limited to the anti-vibration rubber made of a rubber material, and various materials can be applied as long as the material has a property of absorbing vibration.
  • the anti-vibration rubber 300 when the diameter of the anti-vibration rubber 300 is 42 mm, it is preferable that the anti-vibration rubber 300 can be compressed by about 1 mm. In this case, the compression ratio of the anti-vibration rubber 300 is about 2% at 1 mm / 42 mm. Further, the compression rate of the anti-vibration rubber 300 can be set in a certain range, and is preferably set in the range of, for example, about 1 to 3%. In order to realize such a compression rate, for example, the size and shape of the compression portion 206, the number and spacing of the slits 206a, the number of compression piece portions 206b, the shape, the size, the arrangement position, and the fitting hole portion 400. It is advisable to set the configuration of each part such as the size and shape and the size and shape of the anti-vibration rubber 300.
  • the number of slits 206a provided in the compression unit 206 can be appropriately changed, and may be 3 or less, or 5 or more. Further, the intervals of the slits 206a do not have to be equal, and the intervals of the plurality of slits 206a may be uneven. Further, the holding case 200 may be made of, for example, a metal material as long as at least the compression portion 206 can be elastically deformable.
  • the compression unit 206 is not limited to a circular shape, and can be implemented by appropriately changing its shape, for example, a triangle, a quadrangle, an ellipse, or a polygon.
  • the fitting hole portion 400 is not limited to a circular shape, and the shape thereof can be appropriately changed, for example, a triangle, a quadrangle, an ellipse, or a polygon.
  • the shapes of the compression portion 206 and the fitting hole portion 400 do not necessarily have to be the same, but may be different. Therefore, for example, the quadrangular compression portion 206 may be fitted into the circular fitting hole portion 400.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'unité intérieure pour climatiseur selon le mode de réalisation de l'invention comprend : un ventilateur à flux horizontal, qui forme un flux d'air en aspirant l'air intérieur par un orifice d'entrée d'air et en soufflant de l'air dans la pièce par un orifice de soufflage d'air ; un moteur de ventilateur, qui entraîne le ventilateur à flux horizontal ; un boîtier, à l'intérieur duquel le moteur de ventilateur est contenu ; une partie de montage, dans laquelle est monté le boîtier contenant le moteur de ventilateur ; un élément d'isolation contre les vibrations, qui est logé à l'intérieur du boîtier conjointement avec le moteur de ventilateur, et qui absorbe les vibrations générées pendant le fonctionnement du moteur de ventilateur ; et une partie compression, qui comprime l'élément d'isolation contre les vibrations à l'intérieur du boîtier lorsque le boîtier contenant le moteur de ventilateur est monté sur la partie de montage.
PCT/JP2019/024734 2019-06-21 2019-06-21 Unité intérieure pour climatiseur WO2020255381A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19934140.5A EP3988848A4 (fr) 2019-06-21 2019-06-21 Unité intérieure pour climatiseur
CN201980097606.2A CN113994148B (zh) 2019-06-21 2019-06-21 空调机的室内机
PCT/JP2019/024734 WO2020255381A1 (fr) 2019-06-21 2019-06-21 Unité intérieure pour climatiseur
JP2021528601A JP7265628B2 (ja) 2019-06-21 2019-06-21 空気調和機の室内機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/024734 WO2020255381A1 (fr) 2019-06-21 2019-06-21 Unité intérieure pour climatiseur

Publications (1)

Publication Number Publication Date
WO2020255381A1 true WO2020255381A1 (fr) 2020-12-24

Family

ID=74040361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/024734 WO2020255381A1 (fr) 2019-06-21 2019-06-21 Unité intérieure pour climatiseur

Country Status (4)

Country Link
EP (1) EP3988848A4 (fr)
JP (1) JP7265628B2 (fr)
CN (1) CN113994148B (fr)
WO (1) WO2020255381A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH112546A (ja) 1997-06-13 1999-01-06 Nec Corp 回転体の位置検出装置及びその位置検出方法
JP2002071157A (ja) * 2000-08-30 2002-03-08 Toshiba Kyaria Kk 空気調和機
JP2002161887A (ja) * 2000-11-29 2002-06-07 Daikin Ind Ltd ファン装置
JP2003254549A (ja) * 2002-02-26 2003-09-10 Daikin Ind Ltd 空気調和装置の室内機
JP2004144318A (ja) * 2002-10-22 2004-05-20 Mitsubishi Electric Corp 空気調和機の送風装置
JP2011074886A (ja) * 2009-10-01 2011-04-14 Panasonic Corp ファンモータ支持部材と空気調和機

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020001504A1 (en) * 2000-01-10 2002-01-03 Mccallion James P. Threaded compression-enhanced fastening device for use with threaded rods
JP2002161898A (ja) * 2000-11-29 2002-06-07 Daikin Ind Ltd ファン装置
JP4813915B2 (ja) * 2006-02-09 2011-11-09 三菱重工業株式会社 空気調和装置
JP4952173B2 (ja) * 2006-09-29 2012-06-13 ダイキン工業株式会社 空調室内機
EP2299190B1 (fr) * 2009-09-10 2017-09-13 LG Electronics Inc. Unité d'intérieur pour climatiseur
CN103307716B (zh) * 2013-06-28 2016-08-10 海尔集团公司 一种空调室内机电机安装结构及安装方法
JP6524127B2 (ja) * 2017-02-22 2019-06-05 日立ジョンソンコントロールズ空調株式会社 空気調和機の室内機
CN107314521B (zh) * 2017-07-28 2023-09-05 广东美的制冷设备有限公司 空调室内机的电机安装结构和空调室内机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH112546A (ja) 1997-06-13 1999-01-06 Nec Corp 回転体の位置検出装置及びその位置検出方法
JP2002071157A (ja) * 2000-08-30 2002-03-08 Toshiba Kyaria Kk 空気調和機
JP2002161887A (ja) * 2000-11-29 2002-06-07 Daikin Ind Ltd ファン装置
JP2003254549A (ja) * 2002-02-26 2003-09-10 Daikin Ind Ltd 空気調和装置の室内機
JP2004144318A (ja) * 2002-10-22 2004-05-20 Mitsubishi Electric Corp 空気調和機の送風装置
JP2011074886A (ja) * 2009-10-01 2011-04-14 Panasonic Corp ファンモータ支持部材と空気調和機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3988848A4

Also Published As

Publication number Publication date
EP3988848A1 (fr) 2022-04-27
JP7265628B2 (ja) 2023-04-26
JPWO2020255381A1 (fr) 2020-12-24
CN113994148B (zh) 2023-03-14
EP3988848A4 (fr) 2023-01-11
CN113994148A (zh) 2022-01-28

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