WO2007088786A1 - Cache protecteur et climatisation en etant munie - Google Patents

Cache protecteur et climatisation en etant munie Download PDF

Info

Publication number
WO2007088786A1
WO2007088786A1 PCT/JP2007/051261 JP2007051261W WO2007088786A1 WO 2007088786 A1 WO2007088786 A1 WO 2007088786A1 JP 2007051261 W JP2007051261 W JP 2007051261W WO 2007088786 A1 WO2007088786 A1 WO 2007088786A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective cover
members
annular members
radial
air conditioner
Prior art date
Application number
PCT/JP2007/051261
Other languages
English (en)
Japanese (ja)
Inventor
Tsunehisa Sanagi
Naoyuki Ohta
Original Assignee
Daikin Industries, 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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Priority to CN200780002826XA priority Critical patent/CN101371081B/zh
Publication of WO2007088786A1 publication Critical patent/WO2007088786A1/fr

Links

Classifications

    • 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
    • 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
    • F24F1/0059—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
    • 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
    • F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
    • 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
    • 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
    • F24F1/0022—Centrifugal or radial 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F2013/0616—Outlets that have intake openings

Definitions

  • the present invention relates to a protective cover and an air conditioner including the same.
  • a protective cover that covers an air suction port provided in a casing of a ceiling-embedded air conditioner is known.
  • This protective cover is intended to prevent the fingers of workers who perform maintenance of the air conditioner from touching the fan in the casing.
  • the protective cover has a grid-like mesh portion.
  • Patent Document 1 Japanese Patent Laid-Open No. 2000-111087
  • the present inventors have developed a protective cover that reliably prevents a finger of an operator or the like with low ventilation resistance from touching the fan.
  • the present invention has been made in view of the strong point, and the object of the present invention is to make a finger of an operator or the like who performs maintenance of an air conditioner having a small ventilation resistance a fan in the air conditioner.
  • We will provide a protective cover that reliably prevents touching the screen and an air conditioner equipped with the protective cover.
  • a first invention is a protective cover for covering an air inlet provided in an air conditioner, comprising a plurality of annular members arranged concentrically, and between adjacent annular members. Is characterized in that a plurality of radially extending radial members are respectively installed, and the interval between adjacent annular members is greater than the interval between adjacent radial members between the annular members.
  • the interval between the adjacent annular members is made larger than the interval between the adjacent radial members between the two annular members, so that the radial direction of the mesh surrounded by the annular member and the radial members is increased.
  • the length is relatively long and the circumferential length is relatively short.
  • the radial direction length of the mesh is relatively long, the ventilation resistance is reduced, and accordingly, the ventilation noise is reduced.
  • the circumferential length of the mesh is relatively short, it is possible to prevent fingers of workers who perform maintenance of the air conditioner from passing through the mesh. Therefore, it is possible to reliably prevent the finger of an operator from touching the fan in the air conditioner.
  • a second invention is characterized in that, in the first invention, the intervals between the adjacent radial members are substantially the same between the adjacent annular members.
  • the intervals between the adjacent radial members are made substantially the same between the adjacent annular members, so that the intervals between the adjacent radial members are different between the adjacent annular members.
  • a third invention includes the first, second and third annular members disposed in order from the radially inner side to the outer side as the plurality of annular members in the second invention, The number of radial members between the second and third annular members is greater than the number of radial members between the first and second annular members.
  • the number of radial members between the second and third annular members is set between the first and second annular members.
  • the number of radial members adjacent to each other between the second and third annular members is less than the distance between adjacent radial members between the first and second annular members. Also grows. In this case, there is a risk that a finger of an operator who performs maintenance of the air conditioner may touch the fan in the air conditioner through the mesh between the second and third annular members.
  • the number of radial members between the second and third annular members is set to the first and
  • the number of radial members adjacent to each other between the second and third annular members is larger than the number of radial members adjacent to each other between the first and second annular members. It can be substantially the same as the interval. Therefore, it is possible to prevent fingers such as workers performing maintenance of the air conditioner from passing through the mesh between the second and third annular members. Therefore, it is possible to more reliably prevent the finger of an operator or the like from touching the fan in the air conditioner.
  • a fourth invention is characterized in that, in any one of the first to third inventions, an air circulation direction length of the annular member is shorter than an air circulation direction length of the radial member. To do.
  • a fifth invention is characterized in that, in any one of the first to fourth inventions, a cross-sectional shape of the radial member is substantially an airfoil.
  • the cross-sectional shape of the radial member is substantially an airfoil, the ventilation resistance is further reduced, and accordingly, the ventilation noise is further reduced.
  • the sixth invention is characterized in that, in any one of the first to fifth inventions, a resin molding is performed.
  • the protective cover is molded with resin, the cost can be reduced compared with the case where the protective cover is molded with metal.
  • a seventh invention is an air conditioner provided with an air suction port, and includes any one of the first to sixth inventions covering the air suction port. Is.
  • An eighth invention is characterized in that, in the seventh invention, a bell mouth is further provided, and the protective cover is detachably fixed to the bell mouth.
  • a ninth invention is characterized in that, in the seventh invention, a bell mouth is further provided, and the protective cover is formed integrally with the bell mouth.
  • the protective cover is formed integrally with the bell mouth, it is formed integrally. Compared to the case where there is no cost, the cost can be reduced.
  • the interval between adjacent annular members is larger than the interval between adjacent radial members between the two annular members, so that the annular members and the radial members are surrounded.
  • the radial length of the mesh is relatively long, and the circumferential length is relatively short. Therefore, it is possible to reliably prevent the finger of an operator from touching the fan in the air conditioner while reducing the ventilation resistance.
  • FIG. 1 is a cross-sectional view of an indoor unit according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a part of the casing as viewed from its lower side force.
  • FIG. 3 is a plan view of the protective cover.
  • FIG. 4 is a cross-sectional view of the annular member.
  • FIG. 5 is a cross-sectional view of a radial member.
  • FIG. 6 is a cross-sectional view of the radial member.
  • Fig. 1 is a cross-sectional view of the indoor unit
  • Fig. 2 is a perspective view showing a part of the casing as viewed from below
  • Fig. 3 is a plan view of the protective cover.
  • 4 is a cross-sectional view of the annular member
  • FIG. 5 is a cross-sectional view of the radial member.
  • an indoor unit (corresponding to an air conditioner) (1) is a ceiling-embedded type that is embedded in a ceiling of an indoor room.
  • the indoor unit (1) includes a substantially rectangular parallelepiped casing (10) embedded on the upper side of the ceiling (F) and a substantially square decorative panel (30) mounted on the bottom surface of the casing (10).
  • a substantially circular air inlet (11) is provided at the center of the bottom of the casing (10).
  • four substantially rectangular air outlets (12) are formed so as to surround the air inlet (11).
  • a fan (14) is disposed in the air passage (13) connecting the air inlet (11) and the air outlet (12) in the casing (10).
  • a bell mouth (16) is disposed under the fan (14) (suction side) in the casing (10). This bell mouth (16) is molded with grease
  • a heat exchanger (17) is disposed so as to surround the fan (14).
  • This heat exchange ⁇ (17) is, for example, a cross fin coil type.
  • the heat exchange ⁇ (17) is formed in a substantially square shape in plan view.
  • a drain pan (18) is disposed below the heat exchanger (17) in the casing (10) so as to correspond to the heat exchanger (17).
  • This drain pan (18) is for collecting drain water (D) from the heat exchanger ⁇ (17).
  • the drain pan (18) has a substantially square shape in a plan view and a substantially U-shaped cross section.
  • a drain pump (19) is disposed in the drain pan (18). This drainage pump (19) is for discharging drain water (D) accumulated in the drain pan (18).
  • a substantially square air inlet (31) is formed at the center of the decorative panel (30) so as to correspond to the air inlet (11) of the casing (10). Air suction of decorative panel (30) Around the mouth (31), four substantially rectangular air outlets (32) are formed so as to surround the air inlet (31). These air outlets (32) are arranged so as to correspond to the respective air outlets (12) of the casing (10).
  • a protective cover (50) is screwed and fixed to the bell mouth (16) so as to cover the air suction port (11).
  • the protective cover (50) is a net-like member for preventing a finger of an operator who performs maintenance of the indoor unit (1) from touching the fan (14) in the casing (10).
  • the protective cover (50) is molded with resin.
  • the protective cover (50) includes a central member (51) and a plurality of annular members (52) arranged concentrically around the central member (51). I have.
  • the first to sixth annular members (52a to 52f) are arranged in order as the plurality of annular members (52) toward the outside in the radial direction.
  • Each annular member (52) is rod-shaped, and its cross-sectional shape is substantially circular (see FIG. 4).
  • the intervals between the third and fourth annular members (52c, 52d), the fourth and fifth annular members (52d, 52e), and the fifth and sixth annular members (52e, 52f) are substantially the same.
  • the distance between the second and third annular members (52b, 52c) is larger than the distance between the third and fourth annular members (52c, 52d).
  • the distance between the central member (51) and the first annular member (52a), and the first and second annular members (52a, 52b) is substantially the same, and the third and fourth annular members (52c, 52d) Is smaller than the interval.
  • the sixth annular member (52f) is partly formed in a straight line shape, and the other part is formed in a stepped shape that is recessed radially inward.
  • Four fixed plates (54) are attached and fixed to the sixth annular member (52f) so as to extend radially outward.
  • These fixing plates (54) are each formed with a substantially circular threaded hole (54a).
  • a plurality of radially extending radial members (53) are spanned between adjacent central members (51) and annular members (52), and between adjacent annular members (52, 52). Yes.
  • Each radial member (53) is rod-shaped and has a substantially circular cross-sectional shape (see Fig. 5).
  • the length of each radial member (53) in the air flow direction (the length in the vertical direction; the length in the direction passing through the paper surface of FIG. 3) is substantially the same as the length of each annular member (52) in the air flow direction.
  • the interval between adjacent annular members (52, 52) is larger than the interval between adjacent radial members (53, 53) between the annular members (52, 52). Neighboring between (52, 52) The intervals between the radial members (53, 53) that meet each other are substantially the same. For this reason, the radial length of the mesh (55) surrounded by the annular member (52) and the radial member (53) is relatively long, and the circumferential length thereof is relatively short. As a result, the mesh (55) has a substantially rectangular shape. In the present embodiment, the intervals between the adjacent radial members (53, 53) are 10 mm or less. Thus, when the distance between adjacent radial members (53, 53) is 10 mm or less, a standard human finger does not pass through the mesh (55) of the protective cover (50).
  • the number of radial members (53) between the second and third annular members (52b, 52c) is larger than the number of radial members (53) between the first and second annular members (52a, 52b). Many.
  • the second and third annular members (52b, 52c), the third and fourth annular members (52c, 52d), the fourth and fifth annular members (52d, 52e), and the fifth and sixth The number of radial members (53) between the annular members (52e, 52f) increases in this order. That is, the number of the radial members (53) between the adjacent annular members (52, 52) gradually increases as the radial inner force goes outward.
  • the number of radial members (53) between the first and second annular members (52a, 52b) is larger than the number of radial members (53) between the central member (51) and the first annular member (52a). Many.
  • between the central member (51) and the first annular member (52a), between the first and second annular members (52a, 52b), between the second and third annular members (52b, 52c), Number of radial members (53) between the third and fourth annular members (52c, 52d), between the fourth and fifth annular members (52d, 52e), and between the fifth and sixth annular members (52e, 52f) Are 10, 20, 40, 60, 80, and 99, respectively.
  • the air inlet (31, 11) force The air flowing into the casing (10) swirls It flows almost perpendicularly to the protective cover (50).
  • the interval between the adjacent annular members (52, 52) is greater than the interval between the adjacent radial members (53, 53) between the annular members (52, 52). Since the size is increased, the radial length of the mesh (55) surrounded by the annular member (52) and the radial member (53) is relatively long, and the circumferential length thereof is relatively short. As described above, since the length of the mesh (55) in the radial direction is relatively long, the ventilation resistance is reduced, and accordingly, the ventilation noise is reduced. In addition, since the circumferential length of the mesh (55) is relatively short, it is possible to prevent a finger of an operator who performs maintenance of the indoor unit (1) from passing through the mesh (55). Therefore, it is possible to reliably prevent the finger of an operator or the like from touching the fan (14) in the indoor unit (1).
  • the protective cover (50) is molded with resin, the cost can be reduced compared to the case of molding with a metal.
  • the protective cover (50) is screwed and fixed to the bell mouth (16), that is, detachably fixed, the convenience of the indoor unit (1) can be improved. .
  • the force described for the protective cover (50) covering the air inlet (11) provided in the casing (10) of the indoor unit (1) is not limited to this, and the protective cover (50) It may cover the air inlet provided in the air conditioner other than the indoor unit (1).
  • first to sixth annular members (52a to 52f) are arranged as the plurality of annular members (52), but 2 to 5 or 7 or more annular members are provided. (52) may be arranged!
  • the above-mentioned number of radiating members (53) are respectively installed between adjacent annular members (52, 52). As long as the distance between the two annular members (52, 52) is larger than the distance between the adjacent radial members (53), the radial members between the adjacent annular members (52, 52)
  • the number of (53) may be any value of 2 or more.
  • the length of each annular member (52) in the air flow direction is substantially the same as the length of each radial member (53) in the air flow direction! ) In the air flow direction may be shorter than the air flow direction length of each radial member (53).
  • the length of each annular member (52) in the air flow direction becomes relatively short. . Therefore, the ventilation resistance is further reduced, and accordingly, the ventilation noise is further reduced.
  • each radial member (53) has a substantially circular cross-sectional shape. 1S As shown in FIG. 6, the cross-sectional shape of each radial member (53) may be substantially airfoil. In this case, since the cross-sectional shape of each radial member (53) is substantially airfoil, the ventilation resistance is further reduced, and accordingly, the ventilation noise is further reduced.
  • the protective cover (50) is formed of a resin, but may be formed of a material other than this, for example, a metal.
  • the protective cover (50) is screwed and fixed to the bell mouth (16), but the protective cover (50) is attached to and detached from the bell mouth (16) by means other than screwing. It may be fixed as possible.
  • the protective cover (50) is fixed to the bell mouth (16) with screws, but the protective cover (50) may be integrally molded with the bell mouth (16). good.
  • the protective cover (50) is formed integrally with the bell mouth (16), the cost can be reduced as compared with the case where it is not formed integrally.
  • the protective cover according to the present invention and the air conditioner including the protective cover are such that a finger of an operator who performs maintenance of the air conditioner is reduced in ventilation resistance while the ventilation resistance is reduced. Useful for applications that reliably prevent touching

Landscapes

  • 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-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Air-Flow Control Members (AREA)

Abstract

La présente invention concerne un cache protecteur (50) comprenant une pluralité d'éléments annulaires (52) disposés coaxialement les uns par rapport aux autres. Une pluralité d'éléments radiaux (53) s'étendant dans la direction radiale sont disposés de façon à enjamber les éléments annulaires (52, 52) adjacents. Les intervalles entre les éléments annulaires (52, 52) adjacents sont plus importants que ceux entre les éléments radiaux (53, 53) adjacents positionnés entre ces éléments annulaires (52, 52).
PCT/JP2007/051261 2006-02-01 2007-01-26 Cache protecteur et climatisation en etant munie WO2007088786A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200780002826XA CN101371081B (zh) 2006-02-01 2007-01-26 保护盖及包括它的空调机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006024550A JP4033216B2 (ja) 2006-02-01 2006-02-01 保護カバー及びそれを備えた空気調和機
JP2006-024550 2006-02-01

Publications (1)

Publication Number Publication Date
WO2007088786A1 true WO2007088786A1 (fr) 2007-08-09

Family

ID=38327363

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/051261 WO2007088786A1 (fr) 2006-02-01 2007-01-26 Cache protecteur et climatisation en etant munie

Country Status (3)

Country Link
JP (1) JP4033216B2 (fr)
CN (1) CN101371081B (fr)
WO (1) WO2007088786A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5036484B2 (ja) * 2007-10-23 2012-09-26 東芝キヤリア株式会社 天井埋込形空気調和機
JP5429332B2 (ja) * 2012-07-26 2014-02-26 ダイキン工業株式会社 空気調和機
US9976757B2 (en) 2015-04-29 2018-05-22 Schneider Electric It Corporation Airfoil frame for computer room air conditioning unit
JP6685833B2 (ja) * 2016-05-20 2020-04-22 三菱日立パワーシステムズ株式会社 フィルタ、吸気ダクト及びガスタービン
CN107184146B (zh) * 2017-06-26 2023-04-18 美的集团股份有限公司 吸尘器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172973U (fr) * 1985-04-15 1986-10-27
JPH04169724A (ja) * 1990-10-31 1992-06-17 Sanyo Electric Co Ltd 送風ユニット
JPH11237083A (ja) * 1998-02-19 1999-08-31 Sanyo Electric Co Ltd 空気調和機
JP2000111087A (ja) * 1998-09-30 2000-04-18 Fujitsu General Ltd 天井埋込型空気調和機
JP2002195610A (ja) * 2000-12-26 2002-07-10 Toshiba Kyaria Kk 空気調和機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172973U (fr) * 1985-04-15 1986-10-27
JPH04169724A (ja) * 1990-10-31 1992-06-17 Sanyo Electric Co Ltd 送風ユニット
JPH11237083A (ja) * 1998-02-19 1999-08-31 Sanyo Electric Co Ltd 空気調和機
JP2000111087A (ja) * 1998-09-30 2000-04-18 Fujitsu General Ltd 天井埋込型空気調和機
JP2002195610A (ja) * 2000-12-26 2002-07-10 Toshiba Kyaria Kk 空気調和機

Also Published As

Publication number Publication date
CN101371081B (zh) 2011-02-09
JP4033216B2 (ja) 2008-01-16
JP2007205631A (ja) 2007-08-16
CN101371081A (zh) 2009-02-18

Similar Documents

Publication Publication Date Title
JP6385752B2 (ja) 送風装置及び空気調和装置用室外機
JP6588091B2 (ja) 空気清浄機及びその空気流路構成
WO2007088786A1 (fr) Cache protecteur et climatisation en etant munie
EP1616999A1 (fr) Régulateur de débit
US20100029194A1 (en) Air outlet and a method for its manufacture
CN106467002B (zh) 鼓风机壳体中的冷却空气接口
JP5066835B2 (ja) 遠心ファン及びこれを用いた空気調和機
CN204227625U (zh) 气流交换装置
EP3048375B1 (fr) Climatiseur
JP2016011827A (ja) 天井埋込型室内機及びそれを用いた空気調和機
TW202106982A (zh) 風扇裝置
CN203770237U (zh) 鼓风机
US10274209B2 (en) Air conditioner and indoor unit of the same
CN106551658A (zh) 用于吸尘器的电机罩及具有其的吸尘器
JP4884781B2 (ja) 空気調和装置用キャビネット及びこれを用いた空気調和装置
JP2011133159A (ja) 空気調和機の室外機
JP5258866B2 (ja) ファンガード、送風機、及び空気調和装置
JP2010181058A (ja) 空気調和機
US20110036540A1 (en) Environmental conditioning system for a computer room
JP2012233657A (ja) 空気調和機の室外機
JP2015114089A (ja) 天井埋込型室内機及びそれを用いた空気調和機
JP2010060217A (ja) 熱源ユニット
JP6735070B2 (ja) レンジフード
JP2007100979A (ja) ファンガード、送風機、及び空気調和装置
JP4141368B2 (ja) 天井埋込型空気調和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 200780002826.X

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07707493

Country of ref document: EP

Kind code of ref document: A1