EP1213545A1 - Outdoor unit of air conditioner - Google Patents

Outdoor unit of air conditioner Download PDF

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Publication number
EP1213545A1
EP1213545A1 EP00949885A EP00949885A EP1213545A1 EP 1213545 A1 EP1213545 A1 EP 1213545A1 EP 00949885 A EP00949885 A EP 00949885A EP 00949885 A EP00949885 A EP 00949885A EP 1213545 A1 EP1213545 A1 EP 1213545A1
Authority
EP
European Patent Office
Prior art keywords
plate
outdoor unit
air conditioner
casing
casing front
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00949885A
Other languages
German (de)
French (fr)
Other versions
EP1213545B1 (en
EP1213545A4 (en
Inventor
Shiro Shiga-seisakusho Daikin Ind. Ltd. KASHIWA
Takeo Shigaseisakusho Daikin Ind. Ltd. KURAHASHI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
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
Publication of EP1213545A1 publication Critical patent/EP1213545A1/en
Publication of EP1213545A4 publication Critical patent/EP1213545A4/en
Application granted granted Critical
Publication of EP1213545B1 publication Critical patent/EP1213545B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards

Definitions

  • the present invention relates to an outdoor unit of an air conditioner.
  • an outdoor unit of an air conditioner includes a unit shown in Fig. 4, in which a casing is formed from a bottom plate 22, a front 23, and a rear 24 (Japanese Utility Model Kokoku Publication HEI No. 4-2339).
  • the front 23 is formed by curving a plate panel in an generally L shape and is provided with a front plate 23a and a top plate 23b.
  • the rear 24 is formed by curving a plate panel in an generally U shape and is provided with a rear plate 24a and both side plates 24b and 24c.
  • the outdoor unit is composed of a compressor 26, a heat exchanger 27, an air fan 28, a motor 29 and an electrical equipment box 30 disposed inside a casing 21 made up of the bottom plate 22, the front 23 and the rear 24.
  • the above-structured outdoor unit achieves improved assembling efficiency through integration of the front plate 23a and the top plate 23b as well as integration of the rear plate 24a and the side plates 24b and 24c.
  • the above-stated outdoor unit of the air conditioner is required to improve heat transfer efficiency for energy saving, so that in some cases the outdoor unit does not use the rear plate for reduction of passing air resistance on an intake side (rear side). In such cases, the outdoor unit of the air conditioner turns out to have the both side plates as individual components, resulting in increase in the number of components and generating a disadvantage of decreased assembling efficiency.
  • an object of the present invention to provide an outdoor unit of an air conditioner capable of reducing the number of components, improving assembling efficiency, and achieving cost reduction.
  • the present invention provides an outdoor unit of an air conditioner in which a compressor, a heat exchanger and an air fan are disposed inside a casing, characterized in that the casing includes a bottom plate and a one-piece casing front mounted on the bottom plate, said one-piece casing front including a front plate, a top plate and a side plate.
  • either of the both side plates is integrated with the front plate and the top plate to form the casing front with one-piece three-face structure. This makes it possible to reduce the number of components especially in the case where the rear plate is not used for reducing passing resistance of air taken in from the rear side, thereby improving assembling efficiency and achieving cost reduction.
  • the outdoor unit of the air conditioner is characterized in that a side plate of the casing front is attached to an generally L-shaped one-piece member constituted of the integrally-molded front plate and top plate.
  • the generally L-shaped member integrally-molded with the front plate and the top plate makes it possible to simplify a mold compared with the case of molding the one-piece structure comprised of the front plate, the top plate and the side plate.
  • efficiency in assembling is improved by introducing in advance into an assembly line and assembling the casing front with use of the side plate and the L-shaped one-piece member including the front plate and the top plate.
  • the outdoor unit of the air conditioner is characterized in that a bellmouth is formed on the front plate of the casing front.
  • forming a bellmouth on the front plate of the casing front implements further reduction of the number of components, thereby enabling further improvement of assembling efficiency.
  • Fig. 1 is an exploded perspective view showing an outdoor unit of an air conditioner in the first embodiment of the present invention.
  • a one-piece plastic casing front 2 forming a front plate 2a, a top plate 2b and a side plate 2c.
  • a bellmouth 3 is attached to the casing front 2
  • a side plate 4 is attached to the right side of the casing front 2.
  • a partition plate 5 is attached inside the casing front 2, the partition plate 5 being generally parallel to the side plate 4 with certain spacing therefrom.
  • a rear 4a extending to the partition plate 5 is provided on the rear end of the side plate 4.
  • a side cover 6 is placed on the external side face of the side plate 4.
  • a machine chamber for accommodating a compressor 7, an accumulator 8, an electrical equipment box (unshown) and the like.
  • a lower end of a motor supporting member 11 is fixed to the bottom plate 1, while an upper end of the motor supporting member 11 is fixed to the top plate 2b side of the casing front 2.
  • a motor 10 is attached to the motor supporting member 11 so that an output shaft 10a would be generally parallel.
  • An air fan 9 is attached to the output shaft 10a of the motor 10.
  • An generally L-shaped heat exchanger 12 is disposed on the rear side of the motor supporting member 11 inside the casing front 2 and in the vicinity of the side plate 2c inside the casing front 2. Further, on the rear side of the heat exchanger 12, there is mounted a ladder-shaped protection member 13 for protecting the heat exchanger 12.
  • Fig. 2 is an exploded perspective view showing a casing front 2 and a bellmouth 3 of the outdoor unit of the air conditioner.
  • the casing front 2 is provided with a front plate 2a having a circular outlet 14, a top plate 2b extending with an generally right-angled curve from the top end of the front plate 2a, and a side plate 2c extending with an generally right-angled curve from the side end of the front plate 2a.
  • the bellmouth 3 is attached to the rear side of the front plate 2a without using screws (unshown).
  • a reinforcing member 15 having an generally L shape cross section is attached to the rear side of the side plate 2c without using screws (unshown).
  • the reinforcing member 15 is attached to the side plate 2c because placing a reinforcing flange on the rear side of the side plate 2c is not applicable due to restrictions relating to molding.
  • the one-piece casing front 2 is formed by integrating the front plate 2a, the top plate 2b and the side plate 2c shown in Fig 2, which makes it possible to reduce. the number of components especially in the case where the rear plate is not used for reducing passing resistance of air taken in from the rear side, thereby improving assembling efficiency and achieving cost reduction.
  • Fig. 3(A) is an exploded perspective view showing a casing front of an outdoor unit of an air conditioner in the second embodiment of the present invention.
  • the outdoor unit of the air conditioner in the second embodiment has the same structure as the outdoor unit of the air conditioner in the first embodiment except the casing front.
  • the casing front 10 is provided with an generally L-shaped member 16 formed through integral molding of a front plate 16a having a circular outlet 17 and a top plate 16b extending with an generally right-angled curve from the top end of the front plate 16a, and a side plate 18 attached to the side end of the front plate 16a of the generally L-shaped member 16 with using screws (unshown).
  • a bellmouth 3 is attached to the front plate 16a of the casing front 10.
  • the front plate 16a, the top plate 16b, and the side plate 18 are integrated to form the casing front 10.
  • the outdoor unit of the air conditioner with use of the casing front 10 has the same effect as the outdoor unit of the air conditioner in the first embodiment. Furthermore, attaching the side plate 18 of the casing front 10 to the generally L-shaped member 16 formed through integral molding of the front plate 16a and the top plate 16b makes it possible to simplify a mold compared to the case of molding the three-face one-piece structure with the front plate 16a, the top plate 16b and the side plate 18 being integrated.
  • the side plates 2c and 18 are placed on the left side of the casing fronts 2 and 10 in the first and second embodiments, the side plate may obviously be placed on the right side of the casing front.
  • the bellmouth 3 is provided on the casing fronts 2 and 10 in the first and second embodiments, the bellmouth may be formed on the front plate of the casing front, which implements further reduction of the number of components, thereby achieving further improvement of assembling efficiency.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

An outdoor unit of an air conditioner capable of reducing the number of parts, increasing workability in assembly, and reducing a cost, comprising a compressor (7), a heat exchanger (12), and an air fan (9), all disposed in a casing, the casing comprising a bottom plate (1) and a casing front (2) mounted on the bottom plate (1) and formed by integrating together a front plate (2a), a top plate (2b), and a side plate (2c).

Description

TECHNICAL FIELD
The present invention relates to an outdoor unit of an air conditioner.
BACKGROUND ART
Conventionally, an outdoor unit of an air conditioner includes a unit shown in Fig. 4, in which a casing is formed from a bottom plate 22, a front 23, and a rear 24 (Japanese Utility Model Kokoku Publication HEI No. 4-2339). The front 23 is formed by curving a plate panel in an generally L shape and is provided with a front plate 23a and a top plate 23b. The rear 24 is formed by curving a plate panel in an generally U shape and is provided with a rear plate 24a and both side plates 24b and 24c. The outdoor unit is composed of a compressor 26, a heat exchanger 27, an air fan 28, a motor 29 and an electrical equipment box 30 disposed inside a casing 21 made up of the bottom plate 22, the front 23 and the rear 24.
The above-structured outdoor unit achieves improved assembling efficiency through integration of the front plate 23a and the top plate 23b as well as integration of the rear plate 24a and the side plates 24b and 24c.
However, the above-stated outdoor unit of the air conditioner is required to improve heat transfer efficiency for energy saving, so that in some cases the outdoor unit does not use the rear plate for reduction of passing air resistance on an intake side (rear side). In such cases, the outdoor unit of the air conditioner turns out to have the both side plates as individual components, resulting in increase in the number of components and generating a disadvantage of decreased assembling efficiency.
DISCLOSURE OF INVENTION
Accordingly, it is an object of the present invention to provide an outdoor unit of an air conditioner capable of reducing the number of components, improving assembling efficiency, and achieving cost reduction.
In order to accomplish the above object, the present invention provides an outdoor unit of an air conditioner in which a compressor, a heat exchanger and an air fan are disposed inside a casing, characterized in that the casing includes a bottom plate and a one-piece casing front mounted on the bottom plate, said one-piece casing front including a front plate, a top plate and a side plate.
According to the outdoor unit of the air conditioner of the present invention, either of the both side plates is integrated with the front plate and the top plate to form the casing front with one-piece three-face structure. This makes it possible to reduce the number of components especially in the case where the rear plate is not used for reducing passing resistance of air taken in from the rear side, thereby improving assembling efficiency and achieving cost reduction.
In one embodiment of the outdoor unit of the air conditioner, the outdoor unit is characterized in that a side plate of the casing front is attached to an generally L-shaped one-piece member constituted of the integrally-molded front plate and top plate.
According to the outdoor unit of the air conditioner in the above embodiment, the generally L-shaped member integrally-molded with the front plate and the top plate makes it possible to simplify a mold compared with the case of molding the one-piece structure comprised of the front plate, the top plate and the side plate. In addition, efficiency in assembling is improved by introducing in advance into an assembly line and assembling the casing front with use of the side plate and the L-shaped one-piece member including the front plate and the top plate.
In one embodiment of the outdoor unit of the air conditioner, the outdoor unit is characterized in that a bellmouth is formed on the front plate of the casing front.
According to the outdoor unit of the air conditioner in the above embodiment, forming a bellmouth on the front plate of the casing front implements further reduction of the number of components, thereby enabling further improvement of assembling efficiency.
BRIEF DESCRIPTION OF DRAWINGS
  • Fig. 1 is an exploded perspective view showing an outdoor unit of an air conditioner according to a first embodiment of the present invention;
  • Fig. 2 is an exploded perspective view showing a casing front of the outdoor unit of the air conditioner;
  • Fig. 3(A) is an exploded perspective view showing a casing front of an outdoor unit of an air conditioner according to a second embodiment of the present invention;
  • Fig. 3(B) is a perspective view showing the casing front after assembly of that shown in Fig. 3(A); and
  • Fig. 4 is an exploded perspective view showing a prior art outdoor unit of an air conditioner.
    • BEST MODE FOR CARRYING OUT THE INVENTION
    Hereinbelow, the outdoor unit of the air conditioner in the present invention will be described in detail in the embodiments thereof with reference to the accompanying drawings.
    First Embodiment
    Fig. 1 is an exploded perspective view showing an outdoor unit of an air conditioner in the first embodiment of the present invention. As shown in Fig. 1, on a bottom plate 1, there is mounted a one-piece plastic casing front 2 forming a front plate 2a, a top plate 2b and a side plate 2c. A bellmouth 3 is attached to the casing front 2, and a side plate 4 is attached to the right side of the casing front 2. A partition plate 5 is attached inside the casing front 2, the partition plate 5 being generally parallel to the side plate 4 with certain spacing therefrom. A rear 4a extending to the partition plate 5 is provided on the rear end of the side plate 4. A side cover 6 is placed on the external side face of the side plate 4. Between the side plate 4 and the partition plate 5, there is formed a machine chamber for accommodating a compressor 7, an accumulator 8, an electrical equipment box (unshown) and the like. A lower end of a motor supporting member 11 is fixed to the bottom plate 1, while an upper end of the motor supporting member 11 is fixed to the top plate 2b side of the casing front 2. A motor 10 is attached to the motor supporting member 11 so that an output shaft 10a would be generally parallel. An air fan 9 is attached to the output shaft 10a of the motor 10. An generally L-shaped heat exchanger 12 is disposed on the rear side of the motor supporting member 11 inside the casing front 2 and in the vicinity of the side plate 2c inside the casing front 2. Further, on the rear side of the heat exchanger 12, there is mounted a ladder-shaped protection member 13 for protecting the heat exchanger 12.
    Fig. 2 is an exploded perspective view showing a casing front 2 and a bellmouth 3 of the outdoor unit of the air conditioner. As shown in Fig. 2, the casing front 2 is provided with a front plate 2a having a circular outlet 14, a top plate 2b extending with an generally right-angled curve from the top end of the front plate 2a, and a side plate 2c extending with an generally right-angled curve from the side end of the front plate 2a. The bellmouth 3 is attached to the rear side of the front plate 2a without using screws (unshown). A reinforcing member 15 having an generally L shape cross section is attached to the rear side of the side plate 2c without using screws (unshown). The reinforcing member 15 is attached to the side plate 2c because placing a reinforcing flange on the rear side of the side plate 2c is not applicable due to restrictions relating to molding.
    Thus, in the outdoor unit of the air conditioner according to the present invention, the one-piece casing front 2 is formed by integrating the front plate 2a, the top plate 2b and the side plate 2c shown in Fig 2, which makes it possible to reduce. the number of components especially in the case where the rear plate is not used for reducing passing resistance of air taken in from the rear side, thereby improving assembling efficiency and achieving cost reduction.
    Second Embodiment
    Fig. 3(A) is an exploded perspective view showing a casing front of an outdoor unit of an air conditioner in the second embodiment of the present invention. The outdoor unit of the air conditioner in the second embodiment has the same structure as the outdoor unit of the air conditioner in the first embodiment except the casing front.
    As shown in Fig. 3(A), the casing front 10 is provided with an generally L-shaped member 16 formed through integral molding of a front plate 16a having a circular outlet 17 and a top plate 16b extending with an generally right-angled curve from the top end of the front plate 16a, and a side plate 18 attached to the side end of the front plate 16a of the generally L-shaped member 16 with using screws (unshown). A bellmouth 3 is attached to the front plate 16a of the casing front 10. Thus, as shown in Fig. 3(B), the front plate 16a, the top plate 16b, and the side plate 18 are integrated to form the casing front 10.
    The outdoor unit of the air conditioner with use of the casing front 10 has the same effect as the outdoor unit of the air conditioner in the first embodiment. Furthermore, attaching the side plate 18 of the casing front 10 to the generally L-shaped member 16 formed through integral molding of the front plate 16a and the top plate 16b makes it possible to simplify a mold compared to the case of molding the three-face one-piece structure with the front plate 16a, the top plate 16b and the side plate 18 being integrated.
    Although the side plates 2c and 18 are placed on the left side of the casing fronts 2 and 10 in the first and second embodiments, the side plate may obviously be placed on the right side of the casing front.
    Also, although the bellmouth 3 is provided on the casing fronts 2 and 10 in the first and second embodiments, the bellmouth may be formed on the front plate of the casing front, which implements further reduction of the number of components, thereby achieving further improvement of assembling efficiency.

    Claims (3)

    1. An outdoor unit of an air conditioner in which a compressor (7), a heat exchanger (12) and an air fan (9) are disposed inside a casing, characterized in that
         the casing includes a bottom plate (1) and a one-piece casing front (2) mounted on the bottom plate (1), said one-piece casing front (2) including a front plate (2a), a top plate (2b) and a side plate (2c).
    2. The outdoor unit of an air conditioner as defined in Claim 1, characterized in that
         a side plate (18) of the casing front (10) is attached to an generally L-shaped one-piece member (16) constituted of the integrally-molded front plate (16a) and top plate (16b).
    3. The outdoor unit of an air conditioner as defined in Claim 1 or 2, characterized in that
         a bellmouth is formed on the front plate of the casing front.
    EP00949885A 1999-08-24 2000-07-26 Outdoor unit of air conditioner Expired - Lifetime EP1213545B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    JP23698799A JP2001065924A (en) 1999-08-24 1999-08-24 Outdoor unit of air conditioner
    JP23698799 1999-08-24
    PCT/JP2000/004958 WO2001014800A1 (en) 1999-08-24 2000-07-26 Outdoor unit of air conditioner

    Publications (3)

    Publication Number Publication Date
    EP1213545A1 true EP1213545A1 (en) 2002-06-12
    EP1213545A4 EP1213545A4 (en) 2003-05-07
    EP1213545B1 EP1213545B1 (en) 2005-11-23

    Family

    ID=17008721

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00949885A Expired - Lifetime EP1213545B1 (en) 1999-08-24 2000-07-26 Outdoor unit of air conditioner

    Country Status (8)

    Country Link
    EP (1) EP1213545B1 (en)
    JP (1) JP2001065924A (en)
    AT (1) ATE310928T1 (en)
    AU (1) AU767780B2 (en)
    DE (1) DE60024285T2 (en)
    ES (1) ES2252031T3 (en)
    TW (1) TW440673B (en)
    WO (1) WO2001014800A1 (en)

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN100424426C (en) * 2004-10-29 2008-10-08 三星电子株式会社 Outdoor unit of air conditioner
    WO2009005210A3 (en) * 2007-07-05 2009-09-11 Lg Electronics Inc. Outdoor unit of air conditioner
    CN104791924A (en) * 2015-04-29 2015-07-22 宁波奥克斯空调有限公司 Air conditioner outdoor unit shell manufacturing method
    CN107477715A (en) * 2017-09-26 2017-12-15 科希曼电器有限公司 A kind of outer hood structure of integrated air conditioner for being easy to maintenance

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    KR20130043983A (en) * 2011-10-21 2013-05-02 엘지전자 주식회사 Air conditioner
    JP6135071B2 (en) * 2012-08-24 2017-05-31 ダイキン工業株式会社 Refrigeration equipment outdoor unit
    CN209672468U (en) * 2019-02-27 2019-11-22 广东美的制冷设备有限公司 Fresh Air Modules, Air Conditioning Indoor Units and Air Conditioners

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP2892763B2 (en) 1990-04-19 1999-05-17 オリンパス光学工業株式会社 Laser scalpel
    JP3106628B2 (en) * 1991-12-13 2000-11-06 松下電器産業株式会社 Outdoor unit of air conditioner
    JPH062889A (en) * 1992-06-16 1994-01-11 Matsushita Seiko Co Ltd Outdoor unit for air conditioner
    JPH09112966A (en) * 1995-10-18 1997-05-02 Mitsubishi Electric Corp Air conditioner, outdoor unit of air conditioner, and legs of outdoor unit
    JPH109619A (en) * 1996-06-20 1998-01-16 Fujitsu General Ltd Outdoor unit of air conditioner
    JPH1026371A (en) * 1996-07-10 1998-01-27 Fujitsu General Ltd Outdoor unit of air conditioner
    JP3228157B2 (en) * 1996-11-29 2001-11-12 ダイキン工業株式会社 Refrigeration unit
    JPH11118209A (en) * 1997-10-20 1999-04-30 Fujitsu General Ltd Outdoor unit of air conditioner
    JP2001065925A (en) * 1999-08-24 2001-03-16 Daikin Ind Ltd Outdoor unit of air conditioner

    Cited By (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN100424426C (en) * 2004-10-29 2008-10-08 三星电子株式会社 Outdoor unit of air conditioner
    WO2009005210A3 (en) * 2007-07-05 2009-09-11 Lg Electronics Inc. Outdoor unit of air conditioner
    CN101688682B (en) * 2007-07-05 2012-08-22 Lg电子株式会社 Outdoor unit of air conditioner
    CN104791924A (en) * 2015-04-29 2015-07-22 宁波奥克斯空调有限公司 Air conditioner outdoor unit shell manufacturing method
    CN107477715A (en) * 2017-09-26 2017-12-15 科希曼电器有限公司 A kind of outer hood structure of integrated air conditioner for being easy to maintenance

    Also Published As

    Publication number Publication date
    ATE310928T1 (en) 2005-12-15
    DE60024285D1 (en) 2005-12-29
    EP1213545B1 (en) 2005-11-23
    JP2001065924A (en) 2001-03-16
    AU767780B2 (en) 2003-11-27
    DE60024285T2 (en) 2006-08-10
    TW440673B (en) 2001-06-16
    ES2252031T3 (en) 2006-05-16
    EP1213545A4 (en) 2003-05-07
    AU6313700A (en) 2001-03-19
    WO2001014800A1 (en) 2001-03-01

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