JPWO2006068210A1 - Air conditioner outdoor unit - Google Patents

Air conditioner outdoor unit Download PDF

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JPWO2006068210A1
JPWO2006068210A1 JP2006549050A JP2006549050A JPWO2006068210A1 JP WO2006068210 A1 JPWO2006068210 A1 JP WO2006068210A1 JP 2006549050 A JP2006549050 A JP 2006549050A JP 2006549050 A JP2006549050 A JP 2006549050A JP WO2006068210 A1 JPWO2006068210 A1 JP WO2006068210A1
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heat exchanger
outdoor unit
downstream
blower
air conditioner
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JP4818935B2 (en
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雄彦 佐藤
雄彦 佐藤
川合　信夫
信夫 川合
明 寺崎
明 寺崎
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Toshiba Carrier Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • 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
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/16—Arrangement or mounting thereof
    • 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
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/18—Heat exchangers specially adapted for separate outdoor units characterised by their shape
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0266—Particular core assemblies, e.g. having different orientations or having different geometric features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0273—Cores having special shape, e.g. curved, annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/08—Assemblies of conduits having different features

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

本空気調和装置の室外機は、室外機筐体内に圧縮機、室外熱交換器及び送風機が収納された空気調和装置の室外機において、前記室外熱交換器は前記送風機方向に平面視Ｌ字形状に曲げられかつ空気流通方向に配置された複数列の熱交換器からなり、空気流通方向下流側の下流側熱交換器は曲げ角度が鈍角をなす。The outdoor unit of the air conditioner is an outdoor unit of an air conditioner in which a compressor, an outdoor heat exchanger, and a blower are housed in an outdoor unit housing, and the outdoor heat exchanger is L-shaped in plan view in the direction of the blower. And a plurality of rows of heat exchangers arranged in the air flow direction, and the downstream heat exchanger downstream of the air flow direction has an obtuse angle.

Description

本発明は空気調和装置の室外機に係り、特に室外熱交換器の構造を改良した空気調和装置の室外機に関する。  The present invention relates to an outdoor unit of an air conditioner, and more particularly to an outdoor unit of an air conditioner having an improved structure of an outdoor heat exchanger.

近年、設置スペースや据付作業の面から運転能力はそのままにして、省スペース化が図られた空気調和装置の室外機が望まれている。そのためには、大容量の室外熱交換器を配置したり、室外送風ファンの送風量を増大させる方法が考案されている。  In recent years, there has been a demand for an outdoor unit for an air conditioner that saves space while maintaining the operating capacity in terms of installation space and installation work. For this purpose, a method has been devised in which a large-capacity outdoor heat exchanger is arranged or the amount of air blown by the outdoor fan is increased.

例えば、特許文献１（特開平８−２４７４９９号公報）には、熱交換器をＬ字状に曲げ、空気流通方向に複数列の熱交換器を備えたものが提案されている。  For example, Patent Document 1 (Japanese Patent Laid-Open No. 8-247499) proposes a heat exchanger that is bent in an L shape and includes a plurality of rows of heat exchangers in the air flow direction.

しかしながら、特許文献１に記載のものでは、熱交換容量を増大させるために熱交換器の列を増やした場合、下流側の熱交換器において通風抵抗が増え、熱交換効率が低下したり、送風量を増大させるために送風機を大型化すると下流側の熱交換器のＬ字短辺部分と送風ファンが接触したり、送風ファンとの距離が近接するため騒音が増大する。  However, when the number of heat exchangers is increased in order to increase the heat exchange capacity, the ventilation resistance increases in the downstream heat exchanger, the heat exchange efficiency decreases, When the size of the blower is increased in order to increase the air volume, the L-shaped short side portion of the downstream heat exchanger and the blower fan come into contact with each other, or the distance from the blower fan is close, so noise increases.

発明の開示
本発明は上述した事情を考慮してなされたもので、省スペースで熱交換容量を増大させることができる空気調和装置の室外機を提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention has been made in consideration of the above-described circumstances, and an object thereof is to provide an outdoor unit of an air conditioner that can save heat and increase the heat exchange capacity.

上述した目的を達成するため、本発明に係る空気調和装置の室外機は、
仕切板により内部を二区画に区分された室外機筐体と、
前記仕切板により区画された一方側に設けられた機械室と、
前記仕切板により区画された他方側に設けられた熱交換室とを備え、
前記機械室は、室外機筐体底板上に設けられた圧縮機を含み、前記熱交換室には、室外熱交換器と送風機が収納されており、前記室外熱交換器は前記送風機方向に平面視Ｌ字形状に曲げられかつ空気流通方向に重ねて配置された少なくとも２列の熱交換器からなり、空気流通方向下流側の下流側熱交換器は曲げ角度が鈍角をなして配設されていることを特徴とする。In order to achieve the above-described object, an outdoor unit of an air conditioner according to the present invention is:
An outdoor unit housing that is divided into two compartments by a partition plate;
A machine room provided on one side partitioned by the partition plate;
A heat exchange chamber provided on the other side partitioned by the partition plate,
The machine room includes a compressor provided on a bottom plate of an outdoor unit housing. The heat exchange chamber houses an outdoor heat exchanger and a blower, and the outdoor heat exchanger is flat in the direction of the blower. It consists of at least two rows of heat exchangers that are bent in an L shape as viewed and stacked in the air flow direction, and the downstream heat exchanger downstream of the air flow direction is arranged with an obtuse angle. It is characterized by being.

また、前記下流側熱交換器のファン間隔は、前記下流側熱交換器よりも上流側に配置された上流側熱交換器のフィン間隔よりも大きいことが望ましい。  Moreover, it is desirable that the fan interval of the downstream heat exchanger is larger than the fin interval of the upstream heat exchanger disposed upstream of the downstream heat exchanger.

前記下流側熱交換器の冷媒パイプの間隔は、前記上流側熱交換器の冷媒パイプの間隔と異なるようにする事が望ましい。It is desirable that the interval between the refrigerant pipes of the downstream heat exchanger is different from the interval between the refrigerant pipes of the upstream heat exchanger.

また、前記下流側熱交換器のＬ字短辺側の端部は、前記送風機の送風ファンよりも送風機回転軸方向の上流側に位置するようにしても良い。  Moreover, you may make it the edge part of the L-shaped short side of the said downstream heat exchanger located in the upstream of a fan rotating shaft direction rather than the ventilation fan of the said air blower.

さらにまた、本発明による空気調和装置の室外機は、
仕切板により内部を二区画に区分された室外機筐体と、
前記仕切板により区画された一方側に設けられた機械室と、
前記仕切板により区画された他方側に設けられた熱交換室とを備え、
前記機械室は、室外機筐体底板上に設けられた圧縮機を含み、前記熱交換室には、室外熱交換器と送風機が収納されており、前記室外熱交換器は前記送風機方向に平面視Ｌ字形状に曲げられかつ空気流通方向に重ねて配置された少なくとも２列の熱交換器からなり、空気流通方向下流側に配置される下流側熱交換器は、空気流通方向上流側に配置される上流側熱交換器よりも高さ方向の長さが長く設けられたことを特徴とする。Furthermore, the outdoor unit of the air conditioner according to the present invention is:
An outdoor unit housing that is divided into two compartments by a partition plate;
A machine room provided on one side partitioned by the partition plate;
A heat exchange chamber provided on the other side partitioned by the partition plate,
The machine room includes a compressor provided on a bottom plate of an outdoor unit housing. The heat exchange chamber houses an outdoor heat exchanger and a blower, and the outdoor heat exchanger is flat in the direction of the blower. It consists of at least two rows of heat exchangers that are bent in an L-shape and overlapped in the air circulation direction, and the downstream heat exchanger that is arranged downstream in the air circulation direction is arranged upstream in the air circulation direction The length in the height direction is longer than that of the upstream heat exchanger.

本発明に係る空気調和装置の室外機によれば、省スペースで熱交換容量を増大させることができる空気調和装置の室外機を提供することができる。  According to the outdoor unit of the air conditioner according to the present invention, it is possible to provide an outdoor unit of an air conditioner that can increase the heat exchange capacity in a space-saving manner.

上記構造を有する本発明の空気調和装置の室外機は、下流側熱交換器の曲げ角度が鈍角（例えば１２０°）をなすので、９０°に曲げた場合に比べて、フィン間隔が広くなり、空気の流通量が増えるので熱交換効率が向上する。さらに、下流側熱交換器はＬ字短辺部分の端部が、送風ファンよりも空気流通方向の上流側に位置しているので、送風ファンと下流側熱交換器との距離を保つことができ、騒音を抑えることができる。加えて、送風ファンの半径方向、軸方向の長さを大きくでき、送風量を増大させることができる。さらには、下流側熱交換器を上流側熱交換器の高さ方向の長さよりも長くしたことにより熱交換器容量を増大させることができる。  In the outdoor unit of the air conditioner of the present invention having the above structure, the bending angle of the downstream heat exchanger makes an obtuse angle (for example, 120 °), so that the fin interval is wide compared to the case of bending to 90 °, Heat exchange efficiency is improved because the amount of air flow increases. Further, since the end of the L-shaped short side portion of the downstream heat exchanger is located upstream of the blower fan in the air flow direction, the distance between the blower fan and the downstream heat exchanger can be maintained. And noise can be suppressed. In addition, the length of the blower fan in the radial direction and the axial direction can be increased, and the amount of blown air can be increased. Furthermore, the heat exchanger capacity can be increased by making the downstream heat exchanger longer than the length in the height direction of the upstream heat exchanger.

以下、本発明に係る空気調和装置の室外機の一実施形態について添付図面を参照して説明する。尚、以下の記載に於いて、上下、左右等、方向を示す表現は図示の状態、又は室外機の実際の据付状態に基づき述べられる。  Hereinafter, an embodiment of an outdoor unit of an air conditioner according to the present invention will be described with reference to the accompanying drawings. In the following description, expressions indicating directions, such as up and down, left and right, are described based on the illustrated state or the actual installation state of the outdoor unit.

図１は本発明に係る空気調和装置の室外機の斜視図、図２はその室外機筐体を除去した斜視図である。  FIG. 1 is a perspective view of an outdoor unit of an air conditioner according to the present invention, and FIG. 2 is a perspective view of the outdoor unit housing removed.

図１に示すように、本実施形態の空気調和機の室外機１は、室外機筐体２を備え、この室外機筐体２は固定脚３ａを備えた底板３と、この底板３から立設され吹出口４ａが設けられ、分割取り外し可能なサービス板４ｂを備えた前側板４と、この前側板４に連設され吸込側となるワイヤーガード５と、このワイヤーガード５に連設される機械室側板６と、この機械室側板６に対向し、底板３の背面側隅部から立設される支柱７と、前側板４、ワイヤーガード５、機械室側板６及び支柱７によって区画される上部開口を覆うように載置される天板８で構成されている。天板６は天井部６ａとその周端部に形成され、前側板４、機械室側板６、支柱７に固定される固定部６ｂを有している。  As shown in FIG. 1, the outdoor unit 1 of the air conditioner of the present embodiment includes an outdoor unit housing 2, and the outdoor unit housing 2 is provided with a bottom plate 3 including a fixed leg 3 a, and stands from the bottom plate 3. The front plate 4 provided with the outlet 4a and provided with the service plate 4b that can be divided and removed, the wire guard 5 connected to the front plate 4 and serving as the suction side, and connected to the wire guard 5 The machine room side plate 6, the column 7 facing the machine room side plate 6 and standing from the rear side corner of the bottom plate 3, and the front plate 4, the wire guard 5, the machine room side plate 6 and the column 7 are partitioned. The top plate 8 is placed so as to cover the upper opening. The top plate 6 is formed at the ceiling 6 a and the peripheral end thereof, and has a front side plate 4, a machine room side plate 6, and a fixing portion 6 b fixed to the column 7.

図２に示すように、室外機筐体２内は仕切板９によって、機械室１０と熱交換室１１とに区画されている。  As shown in FIG. 2, the interior of the outdoor unit housing 2 is partitioned into a machine room 10 and a heat exchange chamber 11 by a partition plate 9.

機械室１０には、底板３上に載置されて圧縮機１２、アキュムレータ１３、現地配管接続用バルブ１４、冷媒配管及び圧縮機１２や送風機１５を駆動制御する室外制御装置（図示しない）等が収容されている。  The machine room 10 includes an outdoor control device (not shown) that is mounted on the bottom plate 3 and drives and controls the compressor 12, the accumulator 13, the local pipe connection valve 14, the refrigerant pipe and the compressor 12, and the blower 15. Contained.

また、熱交換室１１には、底板３上に載置されて送風ファン１５ａとモータ１５ｂを備えた送風機１５、熱交換器１６が収容されている。  The heat exchange chamber 11 houses a blower 15 and a heat exchanger 16 that are placed on the bottom plate 3 and include a blower fan 15a and a motor 15b.

送風機１５はモータ１５ｂがモータベース１７に取付け固定され、モータベース１７は、下部が底板３に固定され、上部の一端が天板８の背面側に固定され、他端が前側板４に固定されている。さらに、モータベース１７は、底板３に固定するための下部固定部１７ａと、ファンモータ１５ｂを固定するファンモータ固定部１７ｂ及び図６に示す上部固定部１７ｃとを有している。The blower 15 has a motor 15 b attached to and fixed to the motor base 17. The motor base 17 has a lower portion fixed to the bottom plate 3, one upper end fixed to the back side of the top plate 8, and the other end fixed to the front plate 4. ing. Furthermore, the motor base 17 has a lower fixing portion 17a for fixing to the bottom plate 3, a fan motor fixing portion 17b for fixing the fan motor 15b, and an upper fixing portion 17c shown in FIG.

図３〜図６に示すように、熱交換器１６は、送風機１５を囲うように室外機筐体２の背面側と一側面側に面するように平面視でＬ字形状をなす上流側熱交換器１６ａと、その空気流通方向下流側に配置される下流側熱交換器１６ｂとで構成されている。  As shown in FIGS. 3 to 6, the heat exchanger 16 has an upstream heat that is L-shaped in plan view so as to face the back side and one side of the outdoor unit housing 2 so as to surround the blower 15. It is comprised with the exchanger 16a and the downstream heat exchanger 16b arrange | positioned in the air circulation direction downstream.

上流側熱交換器１６ａは、複数枚のアルミフィン１６ａ１に空気流通方向に２列の冷媒パイプ（伝熱管）１６ａ２が千鳥状に貫通している。また、室外機筐体２の背面側には、Ｌ字長辺部１６ａ３が配置され、室外機筐体２の一側面側には、Ｌ字短辺部１６ａ４が配置されている。それぞれの端部には背面側端板１８ａと、前面側端板１８ｂが設けられ、背面側端板１８ａは仕切板９の室外機筐体２の背面側端部に固定され、前側端板１８ｂは底板３および前面板４に固定されている。Upstream heat exchanger 16a, the refrigerant pipe of two rows in the air flowing direction (heat transfer tube) 16a 2 extends through the staggered on a plurality of aluminum fins 16a 1. In addition, an L-shaped long side portion 16 a 3 is disposed on the back side of the outdoor unit housing 2, and an L-shaped short side portion 16 a 4 is disposed on one side of the outdoor unit housing 2. A rear side end plate 18a and a front side end plate 18b are provided at each end, and the rear side end plate 18a is fixed to the rear side end of the outdoor unit housing 2 of the partition plate 9, and the front side end plate 18b. Are fixed to the bottom plate 3 and the front plate 4.

下流側熱交換器１６ｂは、複数枚のアルミフィン１６ｂ１に１列の冷媒パイプ１６ｂ２が貫通している。上流側熱交換器１６ａと同様に室外機筐体２の背面側にＬ字長辺部１６ｂ３が配置され、一側面側にＬ字短辺部１６ｂ４が配置されている。下流側熱交換器１６ｂにもＬ字短辺部１６ｂ４を設けたことにより、その分、熱交換容量を増大させることができる。また、下流側熱交換器１６ｂの端部には背面側端板１９ａと前側端板１９ｂが設けられ、背面側端板１９ａは仕切板９に固定され、前面側端板１９ｂは下部が固定具２０を介して底板３に固定されている。In the downstream heat exchanger 16b, one row of refrigerant pipes 16b 2 passes through a plurality of aluminum fins 16b 1 . Like the upstream heat exchanger 16a to the rear side of the outdoor unit housing 2 is L-shaped long side portions 16b 3 are disposed, L-shaped short sides 16b 4 are arranged on one side. By providing the L-shaped short side portion 16b 4 in the downstream heat exchanger 16b, the heat exchange capacity can be increased accordingly. Further, a rear side end plate 19a and a front side end plate 19b are provided at the end of the downstream heat exchanger 16b, the rear side end plate 19a is fixed to the partition plate 9, and the lower side of the front side end plate 19b is a fixture. It is fixed to the bottom plate 3 through 20.

また、上流側熱交換器１６ａと下流側熱交換器１６ｂとは室外機筐体２の背面側の端部で冷媒配管及びＵパイプ２１により接続されている。  Further, the upstream heat exchanger 16 a and the downstream heat exchanger 16 b are connected to each other by a refrigerant pipe and a U pipe 21 at an end portion on the back side of the outdoor unit housing 2.

下流側熱交換器１６ｂのフィン間隔Ｆｂは、上流側熱交換器１６ａのフィン間隔Ｆａよりも大きくなっており、これにより下流側熱交換器１６ｂに空気が流通しやすくなるので熱交換効率が向上する。  The fin interval Fb of the downstream heat exchanger 16b is larger than the fin interval Fa of the upstream heat exchanger 16a, and this facilitates the flow of air to the downstream heat exchanger 16b, thereby improving the heat exchange efficiency. To do.

また、下流側熱交換器１６ｂの冷媒パイプ１６ｂ１の間隔Ｐｂは、上流側熱交換器１６ａの冷媒パイプ１６ａ１の間隔Ｐａと異なっている。例えば、冷媒パイプ１６ａ２の縦方向の間隔Ｐａと下流側熱交換器１６ｂの冷媒パイプ１６ｂ２の縦方向の間隔Ｐｂとは異なっている。本実施形態ではＰｂ＞Ｐａとなっている。これにより上流側のパイプ１６ａ２と下流側のパイプ１６ｂ２との空気流通方向の重なり部分が減るので下流側の冷媒パイプ１６ｂ２にも空気が触れやすくなり、熱交換効率が向上する。The interval Pb of the refrigerant pipe 16b 1 on the downstream side heat exchanger 16b is different from the interval Pa of the refrigerant pipes 16a 1 of the upstream side heat exchanger 16a. For example, the vertical interval Pa of the refrigerant pipe 16a 2 is different from the vertical interval Pb of the refrigerant pipe 16b 2 of the downstream heat exchanger 16b. In this embodiment, Pb> Pa. As a result, the overlapping portion in the air flow direction between the upstream pipe 16a 2 and the downstream pipe 16b 2 is reduced, so that the air can easily touch the downstream refrigerant pipe 16b 2 and the heat exchange efficiency is improved.

また、下流側熱交換器１６ｂのＬ字長辺部分１６ｂ３とＬ字短辺部分１６ｂ４とがなす曲げ角度αが鈍角例えば好ましくは１２０°をなすように設けられ、Ｌ字短辺部分１６ｂ４の端部１６ｂ５は、送風ファン１５ａよりも送風機回転軸方向の上流側に位置するように設けられている。曲げ角度αが鈍角をなすので、９０°に曲げた場合に比べて、曲げ部分のフィン間隔が広くなり、空気の流通量が増えるので熱交換効率が向上する。Further, the bending angle α formed by the L-shaped long side portion 16b 3 and the L-shaped short side portion 16b 4 of the downstream heat exchanger 16b is provided so as to form an obtuse angle, preferably 120 °, and the L-shaped short side portion 16b. 4 end 16b 5 is provided so as to be located upstream of the blower fan 15a in the fan rotation axis direction. Since the bending angle α is an obtuse angle, the fin interval at the bent portion becomes wider and the amount of air flow increases, so that the heat exchange efficiency is improved.

さらに、下流側熱交換器１６ｂはＬ字短辺部分１６ｂ４の端部１６ｂ５が、送風ファン１５ａよりも送風機回転軸方向の上流側に位置しているので、送風ファン１５ａと下流側熱交換器１６ｂとの距離を保つことができ、騒音を抑えることができる。さらに、送風ファン１５ａの半径方向、軸方向の長さを大きくでき、送風量を増大させることができる。Further, the downstream heat exchanger 16b has an end portion 16b 5 of the L-shaped short side portion 16b 4 located on the upstream side of the blower fan 15a in the direction of the rotation axis of the blower. The distance from the device 16b can be maintained, and noise can be suppressed. Furthermore, the radial and axial lengths of the blower fan 15a can be increased, and the amount of blown air can be increased.

また、下流側熱交換器１６ｂは高さ方向の長さＨｂが上流側熱交換器１６ａの高さ方向の長さＨａよりも長く設けられている。  Further, the downstream heat exchanger 16b is provided such that the height Hb in the height direction is longer than the length Ha in the height direction of the upstream heat exchanger 16a.

上流側熱交換器１６ａの上端部は、天板６の天井部６ａと固定片６ｂとの間に形成される曲部および天板６を固定するためのネジ等が邪魔になり高くできない。仮に上流側熱交換器１６ａの上端部を天井部６ａまで高く設けたとしても、天板固定片６ｂが近接しているため空気の流通が妨げられ、ほとんど熱交換されない。しかし、下流側熱交換器１６ｂの上端部は、天板６の固定片６ｂと距離があるため、天井部６ａの高さ付近まで高く設けることができ、天板６の固定部６ｂにより空気の流通が妨げられないので熱交換が可能である。本発明では下流側熱交換器１６ａを上流側熱交換器１６ａの高さ方向の長さよりも長くしたことにより天板６裏のスペースを有効に活用でき、熱交換量を増大することができる。  The upper end portion of the upstream heat exchanger 16a cannot be made high because a curved portion formed between the ceiling portion 6a of the top plate 6 and the fixing piece 6b and a screw for fixing the top plate 6 are obstructive. Even if the upper end of the upstream heat exchanger 16a is provided high up to the ceiling 6a, the top plate fixing pieces 6b are close to each other so that the air flow is hindered and the heat is hardly exchanged. However, since the upper end portion of the downstream heat exchanger 16b is far from the fixed piece 6b of the top plate 6, it can be provided high up to the vicinity of the height of the ceiling portion 6a. Since the distribution is not hindered, heat exchange is possible. In the present invention, since the downstream heat exchanger 16a is made longer than the length in the height direction of the upstream heat exchanger 16a, the space behind the top plate 6 can be used effectively, and the amount of heat exchange can be increased.

さらに下流側熱交換器１６ｂの高くなっている上端部分をモータベース１７の上部固定部１７ｃに設けられた挟持部１７ｄで挟み、上部固定部１７ｃの一側端部１７ｅを天板６に固定することにより下流側熱交換器１６ｂの長辺部分１６ｂ３と上流側熱交換器１６ａの長辺部分１６ａ３とが密着する。密着することにより通風抵抗が減り、熱交換効率を向上させることができる。Further, the upper end portion of the downstream heat exchanger 16b which is higher is sandwiched by a clamping portion 17d provided in the upper fixing portion 17c of the motor base 17, and one side end portion 17e of the upper fixing portion 17c is fixed to the top plate 6. Accordingly, the long side portion 16b 3 of the downstream heat exchanger 16b and the long side portion 16a 3 of the upstream heat exchanger 16a are in close contact with each other. Adhesion reduces ventilation resistance and improves heat exchange efficiency.

上記構造を有する本実施形態の空気調和装置の室外機は、下流側熱交換器の曲げ角度αが鈍角をなすので、９０°に曲げた場合に比べて、フィン間隔が広くなり、空気の流通量が増えるので熱交換効率が向上する。さらに、下流側熱交換器１６ｂはＬ字短辺部分１６ｂ３の端部１７ｂ４が、送風ファン１５ａよりも空気流通方向の上流側に位置しているので、送風ファン１５ａと下流側熱交換器１６ｂとの距離を保つことができ、騒音を抑えることができ、これに加えて、送風ファン１５ａの半径方向、軸方向の長さを大きくでき、送風量を増大させることができる。さらに、下流側熱交換器１６ｂを上流側熱交換器１６ａの高さ方向の長さよりも長くしたことにより熱交換器容量を増大させることができる。In the outdoor unit of the air conditioner of the present embodiment having the above structure, the bending angle α of the downstream heat exchanger is an obtuse angle, so that the fin interval is wider than when bent to 90 °, and air circulation Heat exchange efficiency is improved because the amount increases. Further, since the downstream heat exchanger 16b has the end 17b 4 of the L-shaped short side portion 16b 3 located on the upstream side in the air flow direction with respect to the blower fan 15a, the blower fan 15a and the downstream heat exchanger The distance to 16b can be maintained, noise can be suppressed, and in addition to this, the length of the blower fan 15a in the radial direction and the axial direction can be increased, and the amount of blown air can be increased. Furthermore, the heat exchanger capacity can be increased by making the downstream heat exchanger 16b longer than the length of the upstream heat exchanger 16a in the height direction.

本実施形態の空気調和装置の室外機によれば、省スペースで熱交換容量を増大させることができる空気調和装置の室外機が実現される。  According to the outdoor unit of the air conditioning apparatus of this embodiment, the outdoor unit of the air conditioning apparatus that can increase the heat exchange capacity in a space-saving manner is realized.

本発明に係る空気調和装置の室外機の斜視図。The perspective view of the outdoor unit of the air conditioning apparatus which concerns on this invention. 本発明に係る空気調和装置の室外機の筐体を除去して示す斜視図。The perspective view which removes and shows the housing | casing of the outdoor unit of the air conditioning apparatus which concerns on this invention. 本発明に係る空気調和装置の室外機に用いられる熱交換器の平面図。The top view of the heat exchanger used for the outdoor unit of the air conditioning apparatus which concerns on this invention. 本発明に係る空気調和装置の室外機に用いられる熱交換器の側面図。The side view of the heat exchanger used for the outdoor unit of the air conditioning apparatus which concerns on this invention. 図４のＶ−Ｖ線に沿う断面図。Sectional drawing which follows the VV line | wire of FIG. 本発明に係る空気調和装置の室外機に用いられる熱交換器の一部を拡大して示す縦断面図。The longitudinal cross-sectional view which expands and shows a part of heat exchanger used for the outdoor unit of the air conditioning apparatus which concerns on this invention.

Claims (6)

仕切板により内部を二区画に区分された室外機筐体と、
前記仕切板により区画された一方側に設けられた機械室と、
前記仕切板により区画された他方側に設けられた熱交換室とを備え、
前記機械室は、室外機筐体底板上に設けられた圧縮機を含み、前記熱交換室には、室外熱交換器と送風機が収納されており、前記室外熱交換器は前記送風機方向に平面視Ｌ字形状に曲げられかつ空気流通方向に重ねて配置された少なくとも２列の熱交換器からなり、空気流通方向下流側の下流側熱交換器は曲げ角度が鈍角をなして配設されていることを特徴とする空気調和装置の室外機。An outdoor unit housing that is divided into two compartments by a partition plate;
A machine room provided on one side partitioned by the partition plate;
A heat exchange chamber provided on the other side partitioned by the partition plate,
The machine room includes a compressor provided on a bottom plate of an outdoor unit housing. The heat exchange chamber houses an outdoor heat exchanger and a blower, and the outdoor heat exchanger is flat in the direction of the blower. It consists of at least two rows of heat exchangers that are bent in an L shape as viewed and stacked in the air flow direction, and the downstream heat exchanger downstream of the air flow direction is arranged with an obtuse angle. An outdoor unit for an air conditioner characterized by comprising: 前記下流側熱交換器のファン間隔は、前記下流側熱交換器よりも上流側に配置された上流側熱交換器のフィン間隔よりも大きいことを特徴とする請求項１に記載の空気調和装置の室外機。  2. The air conditioner according to claim 1, wherein a fan interval of the downstream heat exchanger is larger than a fin interval of an upstream heat exchanger disposed upstream of the downstream heat exchanger. Outdoor unit. 前記下流側熱交換器の冷媒パイプの間隔は、前記上流側熱交換器の冷媒パイプの間隔と異なることを特徴とする請求項１に記載の空気調和装置の室外機。  The outdoor unit of the air conditioner according to claim 1, wherein the interval between the refrigerant pipes of the downstream heat exchanger is different from the interval between the refrigerant pipes of the upstream heat exchanger. 前記下流側熱交換器のＬ字短辺側の端部は、前記送風機の送風ファンよりも送風機回転軸方向の上流側に位置するように設けられたことを特徴とする請求項１に記載の空気調和装置の室外機。  The end of the L-shaped short side of the downstream heat exchanger is provided so as to be located on the upstream side of the blower rotation axis direction with respect to the blower fan of the blower. Air conditioner outdoor unit. 前記空気流通方向下流側の下流側熱交換器は曲げ角度がほぼ１２０°の鈍角をなして配設されていることを特徴とする請求項１に記載の空気調和装置の室外機。  The outdoor unit for an air conditioner according to claim 1, wherein the downstream heat exchanger on the downstream side in the air flow direction is disposed at an obtuse angle with a bending angle of approximately 120 °. 仕切板により内部を二区画に区分された室外機筐体と、
前記仕切板により区画された一方側に設けられた機械室と、
前記仕切板により区画された他方側に設けられた熱交換室とを備え、
前記機械室は、室外機筐体底板上に設けられた圧縮機を含み、前記熱交換室には、室外熱交換器と送風機が収納されており、前記室外熱交換器は前記送風機方向に平面視Ｌ字形状に曲げられかつ空気流通方向に重ねて配置された少なくとも２列の熱交換器からなり、空気流通方向下流側に配置される下流側熱交換器は、空気流通方向上流側に配置される上流側熱交換器よりも高さ方向の長さが長く設けられたことを特徴とする空気調和装置の室外機。An outdoor unit housing that is divided into two compartments by a partition plate;
A machine room provided on one side partitioned by the partition plate;
A heat exchange chamber provided on the other side partitioned by the partition plate,
The machine room includes a compressor provided on a bottom plate of an outdoor unit housing. The heat exchange chamber houses an outdoor heat exchanger and a blower, and the outdoor heat exchanger is flat in the direction of the blower. It consists of at least two rows of heat exchangers that are bent in an L-shape and overlapped in the air circulation direction, and the downstream heat exchanger that is arranged downstream in the air circulation direction is arranged upstream in the air circulation direction An outdoor unit for an air conditioner characterized in that the length in the height direction is longer than that of the upstream heat exchanger.
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WO2006068210A1 (en) 2006-06-29
ES2456018T3 (en) 2014-04-21
EP1837608A4 (en) 2009-06-03
CN101087978A (en) 2007-12-12
CN101087978B (en) 2010-05-12
JP4818935B2 (en) 2011-11-16
EP1837608B1 (en) 2014-01-29
EP1837608A1 (en) 2007-09-26

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