JPH08247681A - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
JPH08247681A
JPH08247681A JP5098895A JP5098895A JPH08247681A JP H08247681 A JPH08247681 A JP H08247681A JP 5098895 A JP5098895 A JP 5098895A JP 5098895 A JP5098895 A JP 5098895A JP H08247681 A JPH08247681 A JP H08247681A
Authority
JP
Japan
Prior art keywords
heat exchanger
row
unit
heat exchange
unit heat
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.)
Pending
Application number
JP5098895A
Other languages
Japanese (ja)
Inventor
Masao Isshiki
正男 一色
Atsushi Nagasawa
敦氏 長澤
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP5098895A priority Critical patent/JPH08247681A/en
Publication of JPH08247681A publication Critical patent/JPH08247681A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

PURPOSE: To attain reduction of the size and improvement of the efficiency of heat exchange by a construction wherein divided unit heat exchangers are arranged in a plurality of rows in the direction of a heat exchange air flow and the unit heat exchangers in the leeward-side row are opposed to those in the windward-side row so that the respective end parts thereof overlap each other in the direction of the air flow. CONSTITUTION: A large number of strip-shaped fins (f) are juxtaposed with a narrow gap left between and heat exchange pipes (p) piercing the fins are arranged in one row along the longitudinal direction (vertical direction) of the fins (f). In the vertical direction thereof, a plurality of divided unit heat exchangers N are arranged in two rows along the direction of sending heat exchange air of a blower. These unit heat exchangers N in a plurality are aligned in straight lines in the windward-side row WU an the leeward-side row WD and disposed in a state wherein the respective upper and lower end parts thereof are made to overlap each other in the direction of an air flow. Accordingly, the same dimensions as those in the case when the heat exchange pipes are arranged in two rows are obtained and reduction of the size by lowering the height is attained, while the efficiency of heat exchange can be improved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、たとえば空気調和機に
用いられる熱交換器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used in, for example, an air conditioner.

【０００２】[0002]

【従来の技術】一般的に用いられる空気調和機は、室内
ユニットと室外ユニットとに分割されていて、これらユ
ニット相互間に冷媒管や電源コード等が連通される。そ
れぞれのユニットには、熱交換器が収容配置されてい
る。ここに用いられる熱交換器は、多数枚のフィンが狭
小の間隙を存して並設され、これらフィンに熱交換パイ
プが貫通されてなる。2. Description of the Related Art A commonly used air conditioner is divided into an indoor unit and an outdoor unit, and a refrigerant pipe, a power cord and the like are connected between these units. A heat exchanger is housed and arranged in each unit. In the heat exchanger used here, a large number of fins are arranged side by side with a narrow gap, and a heat exchange pipe is penetrated through these fins.

【０００３】ところで、室内ユニットは勿論、室外ユニ
ットとも、小型化の要望が大である。これらユニットの
小型化をなす上で、最も大きく影響するのが熱交換器の
小型化の是非である。すなわち、熱交換器が小型化でき
ればユニットの小型化が可能となる。By the way, there is a great demand for downsizing not only the indoor unit but also the outdoor unit. The most important factor in miniaturizing these units is the miniaturization of the heat exchanger. That is, if the heat exchanger can be downsized, the unit can be downsized.

【０００４】[0004]

【発明が解決しようとする課題】熱交換器において、は
じめ、短冊状のフィンに１列に熱交換パイプを並設し、
フィンの全長を短縮して背低化を図り、小型化を得るよ
うにした。しかるにこの場合は、熱交換容量が不足し
て、所定の熱交換能力が得られなくなってしまう。In the heat exchanger, first, the strip-shaped fins are provided with the heat exchange pipes in parallel in one row,
The total length of the fins has been shortened to reduce the height and achieve a smaller size. However, in this case, the heat exchange capacity is insufficient and a predetermined heat exchange capacity cannot be obtained.

【０００５】そこで、フィンの幅方向に２列に熱交換パ
イプを並設して、熱交換容量を充分に確保した上、背低
化を図り、小型化を得るようにした。この場合は、１列
目の熱交換パイプを通過して熱交換された空気が、その
まま２列目の熱交換パイプを通過することになり、２列
目において熱交換効率が低下してしまう。Therefore, heat exchange pipes are arranged in two rows in parallel in the width direction of the fins to secure a sufficient heat exchange capacity, and to reduce the height and size. In this case, the air that has passed through the heat exchange pipes in the first row and has undergone heat exchange will pass through the heat exchange pipes in the second row as it is, and the heat exchange efficiency will decrease in the second row.

【０００６】すなわち、熱交換パイプを２列並設したわ
りには熱交換効率の向上に寄与しない。これを補うため
には熱交換面積を大きくする以外になく、結果としてこ
の熱交換器の小型化を促進するには無理がある。That is, even if two heat exchange pipes are arranged side by side, the heat exchange efficiency is not improved. In order to compensate for this, there is no choice but to increase the heat exchange area, and as a result, it is impossible to promote miniaturization of this heat exchanger.

【０００７】本発明は上記事情にもとづきなされたもの
であり、その目的とするところは、熱交換パイプを２列
配列したことと同一の寸法化をなして、背低化である小
型化を図るとともに、２列目の熱交換パイプでの熱交換
作用を確実になして熱交換効率の向上を得られる熱交換
器を提供しようとするものである。The present invention has been made based on the above circumstances, and an object of the present invention is to achieve the same size as the arrangement of the heat exchange pipes in two rows to achieve a height reduction and a size reduction. At the same time, the present invention intends to provide a heat exchanger that ensures the heat exchange action in the second row of heat exchange pipes and improves the heat exchange efficiency.

【０００８】[0008]

【課題を解決するための手段】上記目的を達成するため
に本発明の熱交換器は、請求項１として、矩形状をなす
多数枚のフィンが狭小の間隙を存して並設され、これら
フィンに熱交換パイプを貫通させてなる熱交換器におい
て、上記熱交換器を複数個に分割化し、これら分割化さ
れた単位熱交換器を、熱交換空気流方向に対して複数列
に配置し、かつ風上側列の単位熱交換器に対する風下側
列の単位熱交換器は互いの端部が気流方向に重なるよう
対向したことを特徴とする。In order to achieve the above object, the heat exchanger of the present invention has a plurality of rectangular fins arranged side by side with a narrow gap, as claimed in claim 1. In a heat exchanger having a fin through which a heat exchange pipe penetrates, the heat exchanger is divided into a plurality of pieces, and the divided unit heat exchangers are arranged in a plurality of rows in the heat exchange air flow direction. The unit heat exchangers on the leeward side of the unit heat exchangers on the leeward side face each other so that their ends overlap with each other in the air flow direction.

【０００９】請求項２として、請求項１記載の上記風上
側列の単位熱交換器に対する風下側列の単位熱交換器の
重なる端部の長さ寸法は、熱交換パイプ直径のほぼ１本
分に等しいことを特徴とする。As a second aspect, the length dimension of the overlapping end portion of the unit heat exchangers in the leeward row with respect to the unit heat exchangers in the leeward row according to claim 1 is approximately one diameter of the heat exchange pipe. Is equal to.

【００１０】請求項３として、請求項１および請求項２
のいずれかに記載の上記風上側列の単位熱交換器に対す
る風下側列の単位熱交換器の重なる端部相互は、部分的
にフィンが折り曲げられていて、熱交換空気を案内する
風向案内部をなすことを特徴とする。Claims 1 and 2 are defined as Claim 3.
The overlapping end portions of the unit heat exchangers in the leeward side row with respect to the unit heat exchangers in the upwind side row according to any one of the above, the fins are partially bent, and a wind direction guide portion that guides the heat exchange air. It is characterized by

【００１１】請求項４として、請求項１および請求項２
のいずれかに記載の上記風上側列の単位熱交換器に対す
る風下側列の単位熱交換器の重なる端部相互は、部分的
にフィンが折り曲げられていて、熱交換空気を案内する
風向案内部をなすとともに、互いの風向案内部のフィン
相互は線接触することを特徴とする。Claims 1 and 2 are defined as Claim 4.
The overlapping end portions of the unit heat exchangers in the leeward side row with respect to the unit heat exchangers in the upwind side row according to any one of the above, the fins are partially bent, and a wind direction guide portion that guides the heat exchange air. In addition, the fins of the wind direction guide portions are in line contact with each other.

【００１２】請求項５として、請求項３および請求項４
記載の上記風上側列の単位熱交換器に対する風下側列の
単位熱交換器の重なる端部相互は、部分的にフィンが切
欠される切欠部と、４５°以下の角度で折り曲げられる
風向案内部とを備えたことを特徴とする。Claims 3 and 4 are as claim 5.
The overlapping end portions of the unit heat exchangers in the leeward row with respect to the unit heat exchangers in the leeward row described above include a cutout portion in which fins are partially cutout, and a wind direction guide portion that is bent at an angle of 45 ° or less. It is characterized by having and.

【００１３】請求項６として、請求項３記載の上記風向
案内部は、風上側列の単位熱交換器もしくは風下側列の
単位熱交換器の、少なくともいずれか一方に備えられる
ことを特徴とする。According to a sixth aspect of the present invention, the wind direction guide portion according to the third aspect is provided in at least one of the unit heat exchanger in the windward row and the unit heat exchanger in the leeward row. .

【００１４】請求項７として、請求項１および請求項２
のいずれかに記載の風上側列の単位熱交換器もしくは風
下側列の単位熱交換器の重なる端部相互は、対向する角
部が切欠されるとともに、相互の単位熱交換器は面接触
することを特徴とする。Claims 1 and 2 are defined as Claim 7.
The overlapping end portions of the unit heat exchangers in the windward row or the unit heat exchangers in the leeward row are notched at opposite corners, and the unit heat exchangers are in surface contact with each other. It is characterized by

【００１５】請求項８として、請求項１および請求項２
のいずれかに記載の上記風上側列の単位熱交換器に対す
る風下側列の単位熱交換器の重なる端部相互は、所定距
離寸法ｓ2 だけ離間したことを特徴とする。Claims 1 and 2 are defined as claim 8.
Any of the unit heat exchangers in the leeward row and the unit heat exchangers in the leeward row are separated from each other by a predetermined distance dimension s2.

【００１６】請求項９として、請求項８記載の上記風上
側列の単位熱交換器に対する風下側列の単位熱交換器の
重なる端部相互の所定距離寸法ｓ2 は、熱交換パイプの
直径寸法ＰD 以下に設定したことを特徴とする。As a ninth aspect, the predetermined distance dimension s2 between the overlapping ends of the unit heat exchangers in the leeward row with respect to the unit heat exchangers in the leeward row is the diameter dimension PD of the heat exchange pipe. It is characterized by the following settings.

【００１７】[0017]

【作用】熱交換器を複数に分割化して、熱交換空気流に
対し複数列に配置し、風上側列の単位熱交換器と風下側
列の単位熱交換器の端部相互を重ねたので、１列目の単
位熱交換器での熱交換作用が充分なされることとは別
に、２列目の単位熱交換器の全面にも効果的にフレッシ
ュエアーが導かれて、効果的な熱交換作用をなす。Since the heat exchanger is divided into a plurality of parts and arranged in a plurality of rows for the heat exchange air flow, the end portions of the unit heat exchangers in the windward row and the unit heat exchangers in the leeward row are overlapped with each other. Aside from the sufficient heat exchange effect in the first row unit heat exchanger, fresh air is also effectively introduced to the entire surface of the second row unit heat exchanger to ensure effective heat exchange. Act.

【００１８】[0018]

【実施例】以下、本発明の一実施例を、たとえば空気調
和機の室外ユニットに備えられる熱交換器に適用し、図
面にもとづいて説明する。図１および図２に、空気調和
機の室外ユニットを示す。このユニット本体１は、側面
視および平面視ともに矩形状をなす。ユニット本体１の
一側壁には、ベルマウス２が設けられている。この側壁
と相対向する側壁および直交する面の側壁に亘って導風
用開口部３が設けられる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings by applying it to a heat exchanger provided in an outdoor unit of an air conditioner, for example. 1 and 2 show an outdoor unit of an air conditioner. The unit main body 1 has a rectangular shape in both side view and plan view. A bell mouth 2 is provided on one side wall of the unit body 1. The air guide opening 3 is provided over the side wall facing the side wall and the side wall of the surface orthogonal to the side wall.

【００１９】ユニット本体内１には、送風機４が配置さ
れる。この送風機４は、ファンモータ５と、このファン
モータ５の回転軸に嵌着される送風ファン６とから構成
される。A blower 4 is arranged in the unit body 1. The blower 4 is composed of a fan motor 5 and a blower fan 6 fitted on the rotation shaft of the fan motor 5.

【００２０】上記送風機４のファンモータ５は、支持脚
７を介してユニット本体１の天板１ａと底板１ｂとに支
持される。送風ファン６は上記ベルマウス２に対向して
いる。そして、ベルマウス２に対向するユニット本体１
側壁にはファンガード８が取付けられる。The fan motor 5 of the blower 4 is supported by the top plate 1a and the bottom plate 1b of the unit body 1 via the support legs 7. The blower fan 6 faces the bell mouth 2. And the unit body 1 facing the bell mouth 2
A fan guard 8 is attached to the side wall.

【００２１】上記送風機４が駆動することにより、図中
矢印に示すように、上記導風用開口部３から外気をユニ
ット本体１内に導入し、後述する熱交換器１０を介して
上記ベルマウス２に集中させ、ここから外部へ吹出すよ
うになっている。As the blower 4 is driven, outside air is introduced into the unit body 1 from the air guide opening 3 as shown by an arrow in the figure, and the bell mouth is passed through a heat exchanger 10 described later. It concentrates on 2 and blows out from here.

【００２２】この送風機４と導風用開口部３との間に
は、上記熱交換器１０が配設される。また、これら熱交
換器１０と送風機４は、ユニット本体１内を左右に仕切
る区画板１１（特に図２に示す）の一側部に配置されて
いる。The heat exchanger 10 is arranged between the blower 4 and the air guide opening 3. Further, the heat exchanger 10 and the blower 4 are arranged on one side of the partition plate 11 (particularly shown in FIG. 2) that partitions the inside of the unit main body 1 into right and left.

【００２３】上記区画板１１の他側部は、ユニット本体
１内に形成される圧縮機室１２となっていて、ここには
圧縮機１３が配置される。この圧縮機１３と上記熱交換
器１０とは図示しない冷媒管を介して接続されている。The other side of the partition plate 11 is a compressor chamber 12 formed in the unit main body 1, in which a compressor 13 is arranged. The compressor 13 and the heat exchanger 10 are connected via a refrigerant pipe (not shown).

【００２４】このようにして室外ユニットが構成され、
図示しない室内ユニットと冷媒管や電気配線を介して接
続され、空気調和機が構成されることになる。つぎに上
記熱交換器１０を、図１ないし図３にもとづいて説明す
る。The outdoor unit is thus constructed,
An air conditioner is configured by being connected to an indoor unit (not shown) via a refrigerant pipe or electric wiring. Next, the heat exchanger 10 will be described with reference to FIGS. 1 to 3.

【００２５】熱交換器１０は、多数枚の短冊状のフィン
ｆが狭小の間隙を存して並設され、これらフィンｆに熱
交換パイプｐが貫通してなり、この熱交換パイプｐはフ
ィンｆの長手方向（上下方向）に沿って１列に並べられ
る。In the heat exchanger 10, a large number of strip-shaped fins f are arranged side by side with a narrow gap, and a heat exchange pipe p penetrates through these fins f. They are arranged in a row along the longitudinal direction (up-down direction) of f.

【００２６】そして、熱交換器１０は平面視でＬ字状に
形成されるとともに、その上下方向に複数個に分割さ
れ、これら分割化された個々の熱交換器Ｎ（以下、単位
熱交換器と称する）を送風機４の熱交換空気送風方向に
沿って２列に配置してなる。The heat exchanger 10 is formed in an L shape in a plan view, and is divided into a plurality of pieces in the vertical direction, and the individual heat exchangers N (hereinafter referred to as unit heat exchangers) are divided. ) Are arranged in two rows along the heat exchange air blowing direction of the blower 4.

【００２７】なお、これら単位熱交換器Ｎは、ここでは
１個に４本の熱交換パイプｐが貫通するように、熱交換
パイプｐが必ず偶数本貫通され、このことにより、単体
の熱交換器Ｎは折り返し折曲する熱交換パイプ、いわゆ
るＵパイプだけで構成することができ、ストレートパイ
プを必要としないので、部品の削減ができる。In each of the unit heat exchangers N, an even number of heat exchange pipes p are penetrated so that four heat exchange pipes p penetrate one unit here, and as a result, heat exchange of a single unit is performed. The vessel N can be configured only by a heat exchange pipe that is folded back and folded, that is, a so-called U pipe, and does not require a straight pipe, so that the number of parts can be reduced.

【００２８】このような複数の単位熱交換器Ｎ…が、風
上側列ＷＵと、風下側列ＷＤに直列状に揃えられ、かつ
互いの上下端部を気流方向に重ね合わせた状態で配置さ
れる。なお説明すれば、風上側列ＷＵの単位熱交換器Ｎ
…に対して、風下側列ＷＤの単位熱交換器Ｎ…は千鳥状
に配置される。したがって、風上側列ＷＵの単位熱交換
器Ｎ相互の空隙位置に対向して、風下側列ＷＤの単位熱
交換器Ｎが位置する。Such a plurality of unit heat exchangers N ... Are arranged in series in the windward row WU and the leeward row WD, and are arranged with their upper and lower ends superposed in the air flow direction. It In addition, if explaining, the unit heat exchanger N of the windward row WU
On the other hand, the unit heat exchangers N in the leeward side row WD are arranged in a staggered manner. Therefore, the unit heat exchangers N in the leeward row WD are located so as to face the air gap positions between the unit heat exchangers N in the leeward row WU.

【００２９】そして、上記風上側列ＷＵの単位熱交換器
Ｎの上端部ａおよび下端部ｂと、風下側列ＷＤの単位熱
交換器Ｎの下端部ｂおよび上端部ａは、水平方向（気流
方向）に沿って対向する。Then, the upper end a and the lower end b of the unit heat exchanger N of the windward row WU and the lower end b and the upper end a of the unit heat exchanger N of the leeward row WD are arranged in the horizontal direction (air flow). Direction) opposite.

【００３０】実際には、風上側列ＷＵの単位熱交換器Ｎ
上端部ａ（下端部ｂ）と風下側列ＷＤの単位熱交換器Ｎ
下端部ｂ（上端部ａ）の重なりは、１本の熱交換パイプ
ｐと、この１本の熱交換パイプｐが貫通するのに最低限
必要なフィンｆ部分の長さ分あればよい。In practice, the unit heat exchanger N of the windward row WU
Unit heat exchanger N of upper end a (lower end b) and leeward side row WD
The lower end portion b (upper end portion a) may be overlapped by the length of one heat exchange pipe p and the minimum length of the fin f required to penetrate the one heat exchange pipe p.

【００３１】各単位熱交換器Ｎにおいて、単位熱交換器
Ｎに分割される際、最上端の熱交換パイプｐとフィンｆ
最上端との距離および、最下端の熱交換パイプｐとフィ
ンｆ最下端との距離は、熱交換パイプｐのパイプピッチ
の1/2 が設定される。In each unit heat exchanger N, when the unit heat exchanger N is divided, the uppermost heat exchange pipe p and fin f
The distance from the uppermost end and the distance between the lowermost heat exchange pipe p and the lowermost end of the fin f are set to 1/2 of the pipe pitch of the heat exchange pipe p.

【００３２】しかしながらこの状態では、相互の単位熱
交換器Ｎの端部に設けられる後述する風向案内部１５が
必要以上に大き過ぎて、かえって熱交換空気の円滑なガ
イドに支障が出て、風下側列ＷＤの単位熱交換器Ｎの端
部に熱交換空気が導かれず、熱交換性能が低下するとと
もに、送風騒音が発生する恐れがあるので、ここでは単
位熱交換器Ｎの端部を設定された位置から所定寸法ｃ1
だけ削除する。However, in this state, the wind direction guide portions 15 to be described later, which are provided at the end portions of the mutual unit heat exchangers N, are too large to be necessary, which rather hinders the smooth guide of the heat exchange air, and leeward. Since the heat exchange air is not guided to the end portion of the unit heat exchanger N of the side row WD, the heat exchange performance is deteriorated, and ventilation noise may occur. Therefore, the end portion of the unit heat exchanger N is set here. Specified size c1 from the specified position
Just delete.

【００３３】さらに、風上，風下側列ＷＵ，ＷＤの重な
り合う単位熱交換器Ｎ上下端部ａ，ｂは、斜めに折り曲
げられ、風向案内部１５が形成される。この風向案内部
１５の折り曲げ位置は、重なり合う単位熱交換器Ｎの熱
交換パイプｐ，ｐ相互の軸心を水平方向に結ぶ線が一方
の折り曲げ端であり、他方の折り曲げ端はフィンｆの幅
寸法のほぼ半分の位置になる。したがって、傾斜角度θ
が折り曲げ線となって、三角状の折り曲げ部を形成す
る。Further, the upper and lower end portions a and b of the unit heat exchanger N in which the windward and leeward side rows WU and WD overlap each other are obliquely bent to form a wind direction guide portion 15. Regarding the bending position of the wind direction guide portion 15, the line connecting the heat exchange pipes p, p of the overlapping unit heat exchangers N in the horizontal direction is one bending end, and the other bending end is the width of the fin f. The position is about half the size. Therefore, the tilt angle θ
Becomes a fold line to form a triangular fold.

【００３４】図４にも示すように、各単位熱交換器Ｎを
構成する全てのフィンｆ…の同一部位である角部を、同
方向に折り曲げて風向案内部１５を得る。しかして、冷
凍サイクル運転にともなって送風機４が駆動され、熱交
換空気は基本的に、単位熱交換器Ｎの長手方向とは直交
する方向に導かれる。As shown in FIG. 4, all the fins f constituting each unit heat exchanger N are bent at the same corner portions in the same direction to obtain the wind direction guide portion 15. Then, the blower 4 is driven along with the refrigeration cycle operation, and the heat exchange air is basically guided in the direction orthogonal to the longitudinal direction of the unit heat exchanger N.

【００３５】風上側列ＷＵの単位熱交換器Ｎ…直接導か
れた熱交換空気は、これら単位熱交換器と熱交換する。
風下側列ＷＤの単位熱交換器Ｎ…に直接導かれた熱交換
空気は、これら単位熱交換器の全面に効果的に熱交換す
る。The unit heat exchangers N of the windward row WU ... The heat exchange air that is directly introduced exchanges heat with these unit heat exchangers.
The heat exchange air directly guided to the unit heat exchangers N ... Of the leeward side row WD effectively exchanges heat with the entire surfaces of these unit heat exchangers.

【００３６】特に、風上側列ＷＵ単位熱交換器Ｎの上，
下端部ａ，ｂに導かれた熱交換空気は、ここに重ね合わ
される風下側列ＷＤ単位熱交換器Ｎの下，上端部ｂ，ａ
の外側に導かれる。In particular, on the windward row WU unit heat exchanger N,
The heat exchange air guided to the lower end portions a and b is below the upper end portions b and a of the leeward row WD unit heat exchanger N that is superposed on the heat exchange air.
Be guided to the outside of.

【００３７】すなわち、風上側列ＷＵ単位熱交換器Ｎの
上，下端部ａ，ｂの風向案内部１５と、風下側列ＷＤ単
位熱交換器Ｎの下，上端部ｂ，ａの風向案内部１５が相
互に接触するところから一連の風向案内部となって、風
上側列ＷＵ単位熱交換器Ｎで熱交換された空気は風下側
列ＷＤ熱交換器Ｎに流入することはなく、また風下側列
ＷＤ単位熱交換器Ｎに流入する空気は風上側列ＷＵ熱交
換器Ｎで熱交換されないフレッシュエアーが流入するこ
とになり、熱交換効率の向上に寄与する。That is, the wind direction guiding portions 15 at the upper and lower end portions a and b of the windward row WU unit heat exchanger N and the wind direction guiding portions at the lower and upper end portions b and a of the leeward row WD unit heat exchanger N. A series of wind direction guide portions from where 15 contact each other, the air that has been heat-exchanged in the windward row WU unit heat exchanger N does not flow into the leeward row WD heat exchanger N, and is also leeward. Fresh air that is not heat-exchanged in the windward row WU heat exchanger N flows into the air flowing into the side row WD unit heat exchanger N, which contributes to improvement in heat exchange efficiency.

【００３８】結局、室外ユニットの導風用開口部３から
ユニット本体１内に導かれた熱交換空気は、風上，風下
側列ＷＵ，ＷＤに関わらず、全て効率よく各単位熱交換
器Ｎ…と熱交換され、ベルマウス２を介してユニット本
体１外部へ吹出される。After all, the heat exchange air guided into the unit body 1 from the air guide opening 3 of the outdoor unit is efficiently and efficiently irrespective of the windward and leeward side rows WU and WD. Is heat-exchanged with and is blown out of the unit main body 1 through the bell mouth 2.

【００３９】実質的に、単位熱交換器Ｎを２列並べた配
置をなしているが、１列目である風上側列ＷＵの単位熱
交換器Ｎに導かれた熱交換空気とは別のフレッシュな熱
交換空気を、２列目である風下側列ＷＤの単位熱交換器
Ｎに導くことができ、充分な熱交換作用を得られる。Substantially, the unit heat exchangers N are arranged in two rows, but different from the heat exchange air introduced to the unit heat exchangers N in the first windward row WU. Fresh heat exchange air can be introduced to the unit heat exchanger N in the leeward side row WD, which is the second row, and a sufficient heat exchange action can be obtained.

【００４０】しかも、フィンｆの上下端部を所定寸法ｃ
1 だけ削除するとともに斜めに折り曲げた風向案内部１
５を風上側と風下側に対称的に備えたので、風上側列Ｗ
Ｕの単位熱交換器Ｎからの熱交換空気を風下側列ＷＤの
空間部に通風抵抗が小さい状態で導くことができるとと
もに、風上側列ＷＵの空間部からの熱交換空気を風下側
列ＷＤの単位熱交換器Ｎの上下端部に円滑に導くことが
できる。In addition, the upper and lower ends of the fin f have a predetermined dimension c
Wind direction guide 1 with only 1 deleted and bent at an angle
Since 5 is provided symmetrically on the windward side and the leeward side, the windward row W
The heat exchange air from the unit heat exchanger N of U can be guided to the space portion of the leeward side row WD while the ventilation resistance is small, and the heat exchange air from the space portion of the upwind side row WU can be guided to the leeward side row WD. The unit heat exchanger N can be smoothly guided to the upper and lower ends.

【００４１】これによって、２列熱交換器と同等高さと
熱交換能力でありながら、熱交換器容量が少なくでき、
製造コストが削減できる。そして、フィンｆを折り曲げ
ることで上記風向案内部１５としているので、別部材の
ガイド部等を用いるものに対して、気流方向の寸法を小
さくすることができる。This makes it possible to reduce the heat exchanger capacity while maintaining the same height and heat exchange capacity as the two-row heat exchanger,
Manufacturing cost can be reduced. Since the fins f are bent to form the airflow direction guide portion 15, it is possible to reduce the size in the airflow direction as compared with the case where a guide portion or the like of another member is used.

【００４２】以下に示すような単位熱交換器であっても
よい。図５（Ａ）に示す単位熱交換器Ｎａは、その基本
的な構成は、先に説明したものと同様、多数枚のフィン
ｆと、熱交換パイプｐとからなる。A unit heat exchanger as shown below may be used. The unit heat exchanger Na shown in FIG. 5 (A) is basically composed of a large number of fins f and heat exchange pipes p, as in the case described above.

【００４３】ここでは、フィンｆの上下端部をｃ1 だけ
削除するのであるが、その削除部は、風上側列ＷＵの単
位熱交換器Ｎａにおいては風上側からフィンの幅寸法の
ほぼ1/2 だけ設けられ、風下側列の単位熱交換器Ｎａに
おいては風下側からフィンの幅寸法のほぼ1/2 だけ設け
られる。Here, the upper and lower end portions of the fin f are deleted by c1, but the deleted portion is approximately 1/2 of the width dimension of the fin from the windward side in the unit heat exchanger Na of the windward row WU. In the unit heat exchanger Na on the leeward side, the unit heat exchanger Na is provided from the leeward side by about half the width of the fin.

【００４４】それぞれの先端部は斜めに削除されている
とともに、互いに重なり合う部分が三角状に折り曲げら
れ、風向案内部１５Ａが設けられる。この風向案内部１
５Ａの折り曲げ角度θ1 は、４５°以下であることが望
ましい。The respective tip portions are obliquely removed, and the overlapping portions are bent in a triangular shape to provide a wind direction guide portion 15A. This wind direction guide 1
The bending angle θ1 of 5A is preferably 45 ° or less.

【００４５】このような構成であれば、風向案内部１５
Ａは重なり合う端部の熱交換パイプｐ，ｐに熱交換空気
を有効に導き、熱交換器としての熱交換効率のさらなる
向上に寄与する。With such a structure, the wind direction guide portion 15
A effectively guides heat exchange air to the heat exchange pipes p, p at the overlapping ends, and contributes to further improvement of heat exchange efficiency as a heat exchanger.

【００４６】同図（Ｂ）および図６に示すような単位熱
交換器Ｎｂを採用してもよい。風上側列ＷＵと風下側列
ＷＤとの重なり合う単位熱交換器Ｎｂ，Ｎｂの端部にお
いて、この単位熱交換器を構成するフィンｆには三角状
に切欠された切欠部１６が設けられる。A unit heat exchanger Nb as shown in FIG. 6B and FIG. 6 may be adopted. At the ends of the unit heat exchangers Nb, Nb where the leeward row WU and the leeward row WD overlap with each other, the fins f constituting the unit heat exchanger are provided with notches 16 cut out in a triangular shape.

【００４７】この切欠部１６は、単位熱交換器Ｎｂの重
なり合う側に設けられていて、フィンｆの幅寸法のほぼ
1/2 の幅寸法で、かつ隣り合う熱交換パイプｐ，ｐ相互
間にさらに熱交換パイプ１本分の入るスペースを残す深
さ寸法で設けられる。The notch 16 is provided on the side where the unit heat exchangers Nb overlap each other, and the width dimension of the fin f is almost the same.
The width dimension is 1/2 and the depth dimension is such that a space for one heat exchange pipe is left between adjacent heat exchange pipes p.

【００４８】換言すれば、この場合の重なり合う単位熱
交換器Ｎｂ端部相互は、熱交換パイプ１本分の面積分だ
け互いに面接触することとなる。そして、風上側列ＷＵ
の単位熱交換器Ｎｂにおいて、特に最上、最下部の熱交
換パイプｐに沿って流れる熱交換空気は、風下側列ＷＤ
の単位熱交換器Ｎｂに設けられる切欠部１６の切欠面に
沿って案内される。In other words, the overlapping ends of the unit heat exchangers Nb in this case are in surface contact with each other by an area corresponding to one heat exchange pipe. And the windward row WU
In the unit heat exchanger Nb, the heat exchange air flowing along the uppermost and lowermost heat exchange pipes p is the leeward side row WD.
The unit heat exchanger Nb is guided along the cutout surface of the cutout portion 16.

【００４９】これは、切欠部１６の通風抵抗が他のフィ
ンが存在する部分に対して少ないためであり、この切欠
部１６の切欠面に沿う熱交換空気は、通風抵抗の全く存
在しない部分を案内されることとなるので、多量の熱交
換空気が導かれて風上側列ＷＵの単位熱交換器Ｎｂの熱
交換効率が向上する。This is because the ventilation resistance of the cutout portion 16 is smaller than that of the portion where the other fins exist, and the heat exchange air along the cutout surface of the cutout portion 16 has a portion where no ventilation resistance exists. Since it is guided, a large amount of heat exchange air is introduced and the heat exchange efficiency of the unit heat exchanger Nb of the windward row WU is improved.

【００５０】また、風上側列ＷＵの単位熱交換器Ｎｂに
設けられる切欠部１６の切欠面を案内される熱交換空気
は、円滑に案内されて風下側列の熱交換器Ｎｂに導か
れ、多量の熱交換空気が導かれて、この単位熱交換器の
熱交換効率が向上する。Further, the heat exchange air guided through the notch surface of the notch 16 provided in the unit heat exchanger Nb of the leeward row WU is smoothly guided to the heat exchanger Nb of the leeward row, A large amount of heat exchange air is introduced to improve the heat exchange efficiency of this unit heat exchanger.

【００５１】そして、風上側列ＷＵの単位熱交換器Ｎｂ
と風下側列ＷＤの単位熱交換器Ｎｂとが面接触してい
て、この接触部分に沿って導かれる熱交換空気もあり、
確実な熱交換作用が行われて熱交換効率が向上する。Then, the unit heat exchanger Nb of the windward row WU
And the unit heat exchanger Nb of the leeward side row WD are in surface contact with each other, and there is also heat exchange air guided along this contact portion,
A reliable heat exchange action is performed and heat exchange efficiency is improved.

【００５２】結局、全ての条件が熱交換効率の向上につ
ながるとともに、熱交換空気を強制的に風向案内するも
のではないから、風切り音も低減化する。図７に示すよ
うな、単位熱交換器Ｎｃであってもよい。After all, all the conditions lead to the improvement of the heat exchange efficiency, and since the heat exchange air is not forcibly guided in the wind direction, the wind noise is also reduced. A unit heat exchanger Nc as shown in FIG. 7 may be used.

【００５３】各単位熱交換器Ｎｃは基本的に、矩形状の
多数枚のフィンｆを所定間隔を存して設け、ここに熱交
換パイプｐを貫通して設けることは変わりがない。千鳥
状に配置される風上側列ＷＵの単位熱交換器Ｎｃと、風
下側列ＷＤの単位熱交換器Ｎｃともに、重なる位置にあ
るフィンｆの上下端部は所定寸法ｃ1 だけ削除されてい
ることは同様である。Basically, each unit heat exchanger Nc is basically provided with a large number of rectangular fins f at predetermined intervals, and the heat exchange pipe p is provided therethrough. Both the unit heat exchangers Nc of the windward row WU and the unit heat exchangers Nc of the leeward row WD arranged in a staggered manner have the upper and lower ends of the fins f at the overlapping positions removed by a predetermined dimension c1. Is the same.

【００５４】そして、各単位熱交換器Ｎｃは、その上端
部のみが折り曲げ形成されていて、風向案内部１５Ｂと
なっている。ここでは、風上，風下側列ＷＵ，ＷＤの単
位熱交換器Ｎｃともに折り曲げ形成した風向案内部１５
Ｂを備えたが、これに限定されるものではなく、いずれ
か一方列の単位熱交換器のみに備えてもよい。Further, each unit heat exchanger Nc is formed by bending only the upper end portion thereof and serves as an airflow direction guide portion 15B. Here, the wind direction guide portion 15 is formed by bending both the unit heat exchangers Nc of the windward and leeward rows WU and WD.
Although B is provided, it is not limited to this and may be provided only in the unit heat exchanger in any one row.

【００５５】このような構成であれば、フィンｆの上下
端部を削除したことによる単位熱交換器Ｎｃの小型化
と、風向案内部１５Ｂを備えたことによる熱交換効率の
向上を得られるとともに、上端部のみ折り曲げるので、
下端部を折り曲げるものに比べて加工工程が少なく、製
造性が向上する。With such a configuration, the unit heat exchanger Nc can be downsized by removing the upper and lower ends of the fin f, and the heat exchange efficiency can be improved by providing the wind direction guide portion 15B. Since only the upper end is bent,
The number of processing steps is smaller than that of bending the lower end, and the manufacturability is improved.

【００５６】図８に示すような、単位熱交換器Ｎｄを採
用してもよい。各単位熱交換器Ｎｄは、基本的に、矩形
状の多数枚のフィンｆを所定間隔を存して設け、ここに
熱交換パイプｐを貫通して設けることは変わりがない。A unit heat exchanger Nd as shown in FIG. 8 may be adopted. In each unit heat exchanger Nd, basically, a large number of rectangular fins f are provided at a predetermined interval, and the heat exchange pipe p is provided therethrough.

【００５７】千鳥状に配置される風上列側ＷＵと風下列
側ＷＤとの単位熱交換器Ｎｄは、互いの上下端部が重な
るのであるが、風上列側と風下列側の互いの単位熱交換
器において所定寸法ｓ2 だけ離間した位置に揃えられ
る。The unit heat exchangers Nd on the leeward side WU and the leeward side WD arranged in a staggered manner have their upper and lower ends overlapping each other. The unit heat exchangers are aligned at positions separated by a predetermined dimension s2.

【００５８】上記隙間部Ｓの隙間寸法ｓ2 は、熱交換パ
イプｐの直径ＰD よりも小（ｓ2 ＜ＰD ) であることが
望ましい。このような構成であると、基本的には単位熱
交換器Ｎｄの長手方向に対して垂直な方向に沿って導か
れる熱交換空気の一部が、風上，風下列側ＷＵ，ＷＤの
単位熱交換器Ｎｄ，Ｎｄ間に形成される隙間部Ｓに誘引
され、円滑に導かれる。It is desirable that the clearance dimension s2 of the clearance S be smaller than the diameter PD of the heat exchange pipe p (s2 <PD). With such a configuration, basically, a part of the heat exchange air guided along the direction perpendicular to the longitudinal direction of the unit heat exchanger Nd is a unit on the windward and leeward side WU, WD. It is attracted to the gap S formed between the heat exchangers Nd, Nd and guided smoothly.

【００５９】すなわち、これらの隙間部Ｓに熱交換空気
が導かれて、風上，風下列側ＷＵ，ＷＤの単位熱交換器
Ｎｄ，Ｎｄに接触し、充分な熱交換作用を得られる。ま
た、上記隙間部Ｓの設定によって、あたかも風向案内部
を備えたことと同様、本来重なり合う位置にある風下列
側ＷＤの単位熱交換器Ｎｄにおける熱交換パイプｐにも
確実に熱交換空気が導かれ、充分な熱交換作用が行われ
る。That is, the heat exchange air is introduced into these gaps S and comes into contact with the unit heat exchangers Nd, Nd on the windward and leeward row sides WU, WD, and a sufficient heat exchange action is obtained. Further, by setting the above-mentioned clearance S, heat exchange air is surely guided also to the heat exchange pipe p in the unit heat exchanger Nd on the leeward row side WD which is originally at the overlapping position, as if the airflow direction guide portion were provided. Therefore, a sufficient heat exchange action is performed.

【００６０】ここで、上記隙間部Ｓを流通する空気は、
ある程度の風速を有するため、図中矢印Ｆａのように単
位熱交換器Ｎｄに導かれ、図中矢印Ｆｂのように単位熱
交換器Ｎｄに導かれないので隙間部Ｓを通過する流れは
ほとんど存在しない。Here, the air flowing through the gap S is
Since it has a certain wind speed, it is guided to the unit heat exchanger Nd as shown by the arrow Fa in the figure and is not guided to the unit heat exchanger Nd as shown by the arrow Fb in the figure, so there is almost no flow passing through the gap S. do not do.

【００６１】図９（Ａ）に示すような、単位熱交換器Ｎ
ｅを採用してもよい。各単位熱交換器Ｎｅは、基本的
に、矩形状の多数枚のフィンｆを所定間隔を存して設
け、ここに熱交換パイプｐを貫通して設けることは変わ
りがない。A unit heat exchanger N as shown in FIG.
You may employ e. In each unit heat exchanger Ne, basically, a large number of rectangular fins f are provided at a predetermined interval, and the heat exchange pipes p are provided therethrough.

【００６２】千鳥状に配置される風上列側ＷＵと風下列
側ＷＤとの単位熱交換器Ｎｅは、互いの上下端部が重な
るのであるが、風上列側と風下列側の互いの単位熱交換
器において所定寸法ｓ2 だけ離間した位置に揃えられ
る。The unit heat exchangers Ne on the windward row side WU and the leeward row side WD arranged in a staggered manner have their upper and lower end portions overlapping each other. The unit heat exchangers are aligned at positions separated by a predetermined dimension s2.

【００６３】上記隙間部Ｓの隙間寸法ｓ2 は、熱交換パ
イプｐの直径ＰD よりも小（ｓ2 ＜ＰD ) であることが
望ましい。ここでは、各単位熱交換器Ｎｅの重なり合う
端部において、その対向する角部が斜めに切欠される。
すなわち、切欠部１７は隙間側の角部を欠落して設けら
れることになる。It is desirable that the clearance dimension s2 of the clearance S be smaller than the diameter PD of the heat exchange pipe p (s2 <PD). Here, at the overlapping end portions of each unit heat exchanger Ne, the opposing corner portions are obliquely cut.
That is, the notch 17 is provided by omitting the corner on the gap side.

【００６４】このような構成であると、基本的には単位
熱交換器Ｎｅの長手方向に対して垂直な方向に沿って導
かれる熱交換空気の一部が、風上，風下列側ＷＵ，ＷＤ
の単位熱交換器Ｎｄに設けられる切欠部１７に沿って導
かれる。With such a configuration, basically, a part of the heat exchange air guided along the direction perpendicular to the longitudinal direction of the unit heat exchanger Ne is located at the windward and leeward row side WU. WD
The unit heat exchanger Nd is guided along the cutout portion 17.

【００６５】すなわち、熱交換空気は風上列側ＷＵの単
位熱交換器Ｎｅの切欠部１７の切欠面に沿って導かれ、
隙間部Ｓに至る。そして、この隙間部Ｓから風下列側Ｗ
Ｄの単位熱交換器Ｎｅの切欠部１７の切欠面に沿って導
かれ、熱交換空気は極めて円滑に流通して、さらなる熱
交換効率の向上を得られる。That is, the heat exchange air is guided along the cutout surface of the cutout portion 17 of the unit heat exchanger Ne on the windward side WU,
The gap S is reached. Then, from this gap S to the leeward row side W
The heat exchange air is guided along the cutout surface of the cutout portion 17 of the unit heat exchanger Ne of D, and the heat exchange air flows very smoothly, so that the heat exchange efficiency can be further improved.

【００６６】同図（Ｂ）に示すような、単位熱交換器Ｎ
ｆを採用してもよい。各単位熱交換器Ｎｅは、基本的に
矩形状の多数枚のフィンｆを所定間隔を存して設け、こ
こに熱交換パイプｐを貫通して設けることは変わりがな
い。A unit heat exchanger N as shown in FIG.
You may employ f. In each unit heat exchanger Ne, basically, a large number of rectangular fins f are provided at a predetermined interval, and the heat exchange pipe p is provided therethrough.

【００６７】千鳥状に配置される風上列側ＷＵと風下列
側ＷＤとの単位熱交換器Ｎｆは、互いの上下端部が重な
るのであるが、風上列側と風下列側の互いの単位熱交換
器において所定寸法ｓ2 だけ離間した位置に揃えられ
る。The unit heat exchangers Nf of the windward row side WU and the leeward row side WD, which are arranged in a staggered manner, have their upper and lower end portions overlapping each other. The unit heat exchangers are aligned at positions separated by a predetermined dimension s2.

【００６８】上記隙間部Ｓの隙間寸法ｓ2 は、熱交換パ
イプｐの直径ＰD よりも小（ｓ2 ＜ＰD ) であることが
望ましい。各単位熱交換器Ｎｆの隙間部Ｓを介して重な
り合う端部に、対向する角部が斜めに折り曲げられ、風
向案内部１５Ｃが形成される。The clearance dimension s2 of the clearance S is preferably smaller than the diameter PD of the heat exchange pipe p (s2 <PD). The opposite corners are obliquely bent at the ends of the unit heat exchangers Nf that overlap with each other through the gap S, thereby forming the wind direction guide portion 15C.

【００６９】このような構成であると、基本的には単位
熱交換器Ｎｆの長手方向に対して垂直な方向に沿って導
かれる熱交換空気の一部が、風上，風下列側ＷＵ，ＷＤ
の単位熱交換器Ｎｆ間に形成される隙間部Ｓに誘引さ
れ、円滑に導かれる。With such a structure, basically, a part of the heat exchange air guided along the direction perpendicular to the longitudinal direction of the unit heat exchanger Nf is part of the windward and leeward row side WU. WD
The unit heat exchanger Nf is attracted to the gap S formed between the unit heat exchangers Nf and smoothly guided.

【００７０】そして、隙間部Ｓを介して斜めに折曲され
た風向案内部１５Ｃ，１５Ｃが設けられているので、熱
交換空気は風上列側ＷＵの単位熱交換器Ｎｆの風向案内
部１５Ｃに沿って導かれ、隙間部Ｓに至る。Since the wind direction guide portions 15C, 15C which are obliquely bent through the gap S are provided, the heat exchange air is directed to the wind direction guide portion 15C of the unit heat exchanger Nf on the windward side WU. Is guided along and reaches the gap S.

【００７１】この隙間部Ｓから風下列側ＷＤの単位熱交
換器Ｎｆの風向案内部１５Ｃに沿って導かれ、熱交換空
気は極めて円滑に流通して、さらなる熱交換効率の向上
を得られる。The gap S is guided along the wind direction guide portion 15C of the unit heat exchanger Nf on the leeward row side WD, the heat exchange air circulates extremely smoothly, and the heat exchange efficiency can be further improved.

【００７２】なお、本発明の熱交換器は、その用途を室
外ユニット搭載用に限定されるものではないことは、勿
論である。そして本発明は、要旨を逸脱しない範囲で種
々に変形することが可能である。It is needless to say that the heat exchanger of the present invention is not limited to use for mounting an outdoor unit. The present invention can be variously modified without departing from the scope of the invention.

【００７３】[0073]

【発明の効果】以上説明したように本発明は、請求項１
において、熱交換器を複数個に分割化し、かつ熱交換空
気流方向に対して複数列に配置し、風上側列と風下側列
の単位熱交換器の端部相互が重なるよう対向したから、
熱交換パイプを２列配列したことと同一の寸法化をなし
て、背低化である小型化を図るとともに、２列目の熱交
換パイプでの熱交換作用を確実になして熱交換効率の向
上を得られる効果を奏する。As described above, the present invention provides claim 1.
In, the heat exchanger is divided into a plurality, and arranged in a plurality of rows with respect to the heat exchange air flow direction, since the end portions of the unit heat exchangers of the windward row and the leeward row are opposed to each other,
The size of the heat exchange pipes is the same as that of the two rows, and the size of the heat exchange pipes is reduced, and the heat exchange action in the second row heat exchange pipes is ensured to improve the heat exchange efficiency. There is an effect that improvement can be obtained.

【００７４】請求項２において、風上側列と風下側列の
単位熱交換器の重なる端部相互の長さ寸法を、熱交換パ
イプ直径のほぼ１本分に等しく設定したから、より熱交
換器の背低化を達成しつつ、２列目の単位熱交換器への
熱交換空気を円滑に導くことができ、熱交換効率の向上
を図れる。In claim 2, since the lengths of the overlapping end portions of the unit heat exchangers of the windward row and the leeward row are set to be equal to about one diameter of the heat exchange pipe, the heat exchangers are more heat exchangers. It is possible to smoothly guide the heat exchange air to the second-row unit heat exchanger while achieving the height reduction, and improve the heat exchange efficiency.

【００７５】請求項３において、風上側列と風下側列の
単位熱交換器の重なる端部相互は、部分的にフィンを折
り曲げた風向案内部としたから、熱交換空気を熱交換パ
イプに充分に導いて、熱交換効率の向上に寄与する。In the third aspect, since the overlapping end portions of the unit heat exchangers of the windward row and the leeward row are wind direction guide portions in which fins are partially bent, heat exchange air is sufficiently supplied to the heat exchange pipes. To improve the heat exchange efficiency.

【００７６】請求項４において、風上側列と風下側列の
単位熱交換器の重なる端部相互は、部分的にフィンが折
り曲げた風向案内部とし、互いの風向案内部を接触させ
たから、熱交換空気を熱交換パイプに充分に導くととも
に、接触する熱交換器部分を介して熱交換空気を導き、
熱交換効率の向上に寄与する。In claim 4, the overlapping end portions of the unit heat exchangers of the windward row and the leeward row are wind direction guide portions in which fins are partially bent, and the wind direction guide portions are in contact with each other. While guiding the exchanged air to the heat exchange pipe sufficiently, guide the heat exchanged air through the contacting heat exchanger part,
It contributes to the improvement of heat exchange efficiency.

【００７７】請求項５において、風上側列と風下側列の
単位熱交換器の重なる端部相互は、部分的にフィンが切
欠される切欠部と、４５°以下の角度で折り曲げられる
風向案内部とを備えたから、切欠部と風向案内部の相乗
効果で熱交換空気を効率よく導き、熱交換能力が向上す
る。In claim 5, the overlapping end portions of the unit heat exchangers of the windward row and the leeward row have a notched portion where the fins are partially notched and a wind direction guide portion which is bent at an angle of 45 ° or less. The heat exchange air is efficiently guided by the synergistic effect of the cutout portion and the wind direction guide portion, and the heat exchange capacity is improved.

【００７８】請求項６において、風向案内部は、風上側
列の単位熱交換器もしくは風下側列の単位熱交換器の、
少なくともいずれか一方に備えたから、熱交換空気を確
実に案内できる。In the sixth aspect, the wind direction guide portion is a unit heat exchanger in the windward row or a unit heat exchanger in the leeward row.
Since it is provided in at least one of them, the heat exchange air can be reliably guided.

【００７９】請求項７において、風上側列と風下側列の
単位熱交換器の重なる端部相互は、対向する角部が切欠
し、かつ単位熱交換器相互は面接触させたから、切欠部
と面接触の相乗効果で熱交換空気を効率よく導くことが
できる。In the seventh aspect, the overlapping end portions of the unit heat exchangers in the leeward side row and the leeward side row are cut out at the opposite corners, and the unit heat exchangers are in surface contact with each other. Heat exchange air can be efficiently guided by the synergistic effect of surface contact.

【００８０】請求項８において、風上側列と風下側列の
単位熱交換器の重なる端部相互を所定距離寸法ｓ2 だけ
離間したから、隙間部に熱交換空気誘引作用が生じて、
熱交換空気を効率よく導くことができる。In claim 8, since the overlapping end portions of the unit heat exchangers of the windward row and the leeward row are separated from each other by a predetermined distance dimension s2, a heat exchange air attracting action is generated in the gap portion.
Heat exchange air can be efficiently guided.

【００８１】請求項９において、風上側列と風下側列の
単位熱交換器の重なる端部相互の所定距離寸法ｓ2 は、
熱交換パイプの直径寸法ＰD 以下に設定したから、隙間
部の設定が理想的となり、隙間部のみを通過する生空気
の発生を防止することができる。In the ninth aspect, the predetermined distance dimension s2 between the overlapping ends of the unit heat exchangers in the leeward row and the leeward row is:
Since the diameter is set to be equal to or smaller than the diameter dimension PD of the heat exchange pipe, the setting of the gap is ideal, and the generation of raw air passing only through the gap can be prevented.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例の、熱交換器を備えた空気調
和機室外ユニットの概略の縦断面図。FIG. 1 is a schematic vertical cross-sectional view of an air conditioner outdoor unit including a heat exchanger according to an embodiment of the present invention.

【図２】同実施例の、室外ユニットの概略の横断平面
図。FIG. 2 is a schematic cross-sectional plan view of the outdoor unit of the embodiment.

【図３】同実施例の、熱交換器の一部縦断面図。FIG. 3 is a partial vertical cross-sectional view of the heat exchanger of the same embodiment.

【図４】同実施例の、単位熱交換器の一部斜視図。FIG. 4 is a partial perspective view of a unit heat exchanger of the same embodiment.

【図５】（Ａ）は、他の実施例の、熱交換器の一部縦断
面図。（Ｂ）は、さらに他の実施例の、熱交換器の一部
縦断面図。FIG. 5A is a partial vertical cross-sectional view of a heat exchanger of another embodiment. (B) is a partial longitudinal cross-sectional view of a heat exchanger of still another embodiment.

【図６】図５（Ｂ）の実施例に用いられる、単位熱交換
器の一部斜視図。FIG. 6 is a partial perspective view of a unit heat exchanger used in the embodiment of FIG. 5 (B).

【図７】さらに他の実施例の、熱交換器の一部縦断面
図。FIG. 7 is a partial vertical cross-sectional view of a heat exchanger of still another embodiment.

【図８】さらに他の実施例の、熱交換器の一部縦断面
図。FIG. 8 is a partial vertical cross-sectional view of a heat exchanger of still another embodiment.

【図９】（Ａ）は、さらに他の実施例の、熱交換器の一
部縦断面図。（Ｂ）は、さらに他の実施例の、熱交換器
の一部縦断面図。FIG. 9A is a partial vertical cross-sectional view of a heat exchanger of still another embodiment. (B) is a partial longitudinal cross-sectional view of a heat exchanger of still another embodiment.

【符号の説明】[Explanation of symbols]

ｆ…フィン，ｐ…熱交換パイプ、Ｎ，Ｎａ〜Ｎｅ…単位
熱交換器f ... Fin, p ... Heat exchange pipe, N, Na to Ne ... Unit heat exchanger

Claims (9)

【特許請求の範囲】[Claims] 【請求項１】矩形状をなす多数枚のフィンが狭小の間隙
を存して並設され、これらフィンに熱交換パイプを貫通
させてなる熱交換器において、 上記熱交換器を複数個に分割化し、これら分割化された
単位熱交換器を、熱交換空気流方向に対して複数列に配
置し、かつ風上側列の単位熱交換器に対する風下側列の
単位熱交換器は互いの端部が気流方向に重なるよう対向
したことを特徴とする熱交換器。1. A heat exchanger comprising a large number of rectangular fins arranged side by side with a narrow gap, and a heat exchange pipe passing through the fins. The heat exchanger is divided into a plurality of parts. The divided unit heat exchangers are arranged in a plurality of rows with respect to the heat exchange air flow direction, and the unit heat exchangers in the leeward row and the unit heat exchangers in the leeward row are at the ends of each other. A heat exchanger characterized in that they are opposed to each other so as to overlap in the air flow direction. 【請求項２】上記風上側列の単位熱交換器に対する風下
側列の単位熱交換器の重なる端部の長さ寸法は、熱交換
パイプ直径のほぼ１本分に等しいことを特徴とする請求
項１記載の熱交換器。2. The length dimension of the overlapping end portion of the unit heat exchangers in the leeward side row with respect to the unit heat exchangers in the leeward side row is substantially equal to one diameter of the heat exchange pipe. The heat exchanger according to item 1. 【請求項３】上記風上側列の単位熱交換器に対する風下
側列の単位熱交換器の重なる端部相互は、部分的にフィ
ンが折り曲げられ熱交換空気を案内する風向案内部を備
えたことを特徴とする請求項１および請求項２のいずれ
かに記載の熱交換器。3. The fins are partially bent at the overlapping end portions of the unit heat exchangers in the leeward row with respect to the unit heat exchangers in the leeward row, and a wind direction guide portion for guiding heat exchange air is provided. The heat exchanger according to any one of claims 1 and 2, characterized in that. 【請求項４】上記風上側列の単位熱交換器に対する風下
側列の単位熱交換器の重なる端部相互は、部分的にフィ
ンが折り曲げられ熱交換空気を案内する風向案内部をな
すとともに、互いの風向案内部のフィン相互は線接触す
ることを特徴とする請求項１および請求項２のいずれか
に記載の熱交換器。4. The overlapping end portions of the unit heat exchangers in the leeward row with respect to the unit heat exchangers in the leeward row form a wind direction guide portion for guiding heat exchange air by partially bending fins, The heat exchanger according to claim 1, wherein the fins of the wind direction guide portions are in line contact with each other. 【請求項５】上記風上側列の単位熱交換器に対する風下
側列の単位熱交換器の重なる端部相互は、部分的にフィ
ンが切欠される切欠部と、４５°以下の角度で折り曲げ
られる風向案内部とを備えたことを特徴とする請求項３
および請求項４記載の熱交換器。5. The overlapping end portions of the unit heat exchangers in the leeward row with respect to the unit heat exchangers in the leeward row are bent at an angle of 45 ° or less with a cutout portion where a fin is partially cut out. 4. A wind direction guide section is provided.
And the heat exchanger according to claim 4. 【請求項６】上記風向案内部は、風上側列の単位熱交換
器もしくは風下側列の単位熱交換器の、少なくともいず
れか一方に備えられることを特徴とする請求項３記載の
熱交換器。6. The heat exchanger according to claim 3, wherein the wind direction guide portion is provided in at least one of a unit heat exchanger in a windward row and a unit heat exchanger in a leeward row. . 【請求項７】上記風上側列の単位熱交換器もしくは風下
側列の単位熱交換器の重なる端部相互は、対向する角部
が切欠されるとともに、相互の単位熱交換器は面接触す
ることを特徴とする請求項１および請求項２のいずれか
に記載の熱交換器。7. The overlapping end portions of the unit heat exchangers in the windward row or the unit heat exchangers in the leeward row are cut at opposite corners, and the unit heat exchangers are in surface contact with each other. The heat exchanger according to claim 1, wherein the heat exchanger is a heat exchanger. 【請求項８】上記風上側列の単位熱交換器に対する風下
側列の単位熱交換器の重なる端部相互は、所定距離寸法
ｓ2 だけ離間したことを特徴とする請求項１および請求
項２のいずれかに記載の熱交換器。8. The unit heat exchanger in the leeward row is separated from the overlapping end portions of the unit heat exchanger in the leeward row by a predetermined distance dimension s2. The heat exchanger according to any one. 【請求項９】上記風上側列の単位熱交換器に対する風下
側列の単位熱交換器の重なる端部相互の所定距離寸法ｓ
2 は、熱交換パイプの直径寸法ＰD 以下に設定したこと
を特徴とする請求項８記載の熱交換器。9. The predetermined distance dimension s between the overlapping ends of the unit heat exchangers in the leeward row with respect to the unit heat exchangers in the leeward row.
9. The heat exchanger according to claim 8, wherein 2 is set to be equal to or smaller than the diameter dimension PD of the heat exchange pipe.
JP5098895A 1995-03-10 1995-03-10 Heat exchanger Pending JPH08247681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5098895A JPH08247681A (en) 1995-03-10 1995-03-10 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5098895A JPH08247681A (en) 1995-03-10 1995-03-10 Heat exchanger

Publications (1)

Publication Number Publication Date
JPH08247681A true JPH08247681A (en) 1996-09-27

Family

ID=12874184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5098895A Pending JPH08247681A (en) 1995-03-10 1995-03-10 Heat exchanger

Country Status (1)

Country Link
JP (1) JPH08247681A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017158714A1 (en) * 2016-03-15 2017-09-21 三菱電機株式会社 Refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017158714A1 (en) * 2016-03-15 2017-09-21 三菱電機株式会社 Refrigerator
JPWO2017158714A1 (en) * 2016-03-15 2018-09-27 三菱電機株式会社 refrigerator

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