JP2003161589A - Air conditioning plate fin type heat exchanger - Google Patents
Air conditioning plate fin type heat exchangerInfo
- Publication number
- JP2003161589A JP2003161589A JP2001355949A JP2001355949A JP2003161589A JP 2003161589 A JP2003161589 A JP 2003161589A JP 2001355949 A JP2001355949 A JP 2001355949A JP 2001355949 A JP2001355949 A JP 2001355949A JP 2003161589 A JP2003161589 A JP 2003161589A
- Authority
- JP
- Japan
- Prior art keywords
- flat
- plate
- plate fin
- heat exchanger
- parallel
- 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
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
- 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
- F28D1/0471—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 having a non-circular cross-section
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、家庭用または自動
車用のプレートフィン型熱交換器であって、室内機また
は室外機に用いられるものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate fin type heat exchanger for household or automobile, which is used for an indoor unit or an outdoor unit.
【０００２】[0002]
【従来の技術】現在広く用いられている家庭用ルームエ
アコンに用いる室外機のフィンチューブタイプ熱交換器
は、次のように構成されていた。即ち、外直径が７ｍｍ
前後の丸チューブを使用し、多数のプレートフィンに２
列のチューブ挿通孔を形成し、その幅方向のピッチを２
１ｍｍ程度とし、長さ方向のピッチを１８ｍｍ程度とし
てコアを構成し、コアの長さを９００ｍｍ前後、コアの
幅を５００〜６００ｍｍ程度にしたものが一般的であ
る。これはそれ以前の熱交換器に比べてかなり大型化し
ており、その性能及びコストの面で限界に達している。2. Description of the Related Art A fin-tube type heat exchanger for an outdoor unit used in a home room air conditioner which is widely used at present has the following structure. That is, the outer diameter is 7 mm
Use round tubes at the front and rear to attach to a large number of plate fins
Form the tube insertion holes in rows and set the pitch in the width direction to 2
Generally, the core is configured with a length of about 1 mm, a pitch in the length direction of about 18 mm, a core length of about 900 mm, and a core width of about 500 to 600 mm. This is considerably larger than the previous heat exchangers, and has reached the limit in terms of its performance and cost.
【０００３】このような丸チューブ型の熱交換器は、空
気が流通するチューブ外面側ではそのチューブの風下に
大きな死水域が生じ、フィンの放熱面全体を均一に放熱
することが難しい。また、偏平チューブに比べて丸チュ
ーブの熱交換器は、空気の流通抵抗も高くなる。次に、
冷媒が流通するチューブ内においては、その内面に微細
な多数の溝を付けることが有るが、それによっても内表
面の伝熱面積は多穴管に比べて著しく小さい。これらの
問題を解決するために、丸チューブの直径を小さくする
ことが行われているが、その直径を３ｍｍ以下にするこ
とは困難である。In such a round-tube type heat exchanger, a large dead water region occurs on the leeward side of the tube through which air flows, and it is difficult to radiate heat uniformly over the heat-radiating surface of the fin. In addition, the round tube heat exchanger has a higher air flow resistance than the flat tube. next,
In the tube in which the refrigerant flows, a large number of fine grooves may be formed on the inner surface of the tube, but the heat transfer area on the inner surface is significantly smaller than that of the multi-hole tube. In order to solve these problems, the diameter of the round tube has been reduced, but it is difficult to reduce the diameter to 3 mm or less.
【０００４】次に、アルミニュームの多穴押出管からな
る偏平チューブを用い、各偏平チューブ間にコルゲート
フィンを配置したもの、或いはプレートフィンを配置し
たものが提案されている。Next, it has been proposed to use flat tubes made of aluminum multi-hole extruded tubes with corrugated fins or plate fins arranged between the flat tubes.
【０００５】[0005]
【発明が解決しようとする課題】偏平多穴チューブとコ
ルゲートフィンとを用いた熱交換器は、それをエバポレ
ータとして使用する場合には、凝縮水がコルゲートフィ
ンに滞留し易く熱交換性能を低下させる欠点があった。
また、偏平多穴チューブとプレートフィンとを用いる場
合には、その偏平チューブの挿入の際に挿入抵抗が大き
く作業性が悪いと共に、時としてプレートフィンに変形
が生じる場合がある。A heat exchanger using a flat multi-hole tube and corrugated fins, when used as an evaporator, tends to retain condensed water in the corrugated fins and deteriorates heat exchange performance. There was a flaw.
Further, when the flat multi-hole tube and the plate fin are used, the insertion resistance is large when the flat tube is inserted, the workability is poor, and sometimes the plate fin is deformed.
【０００６】さらには、プレートフィンと偏平多穴チュ
ーブとでコアを形成し、そのコアをＬ字状またはコ字状
等に曲げて省スペース化を図ることが困難である欠点が
あった。 さらには、偏平多穴チューブとプレートフィ
ンとの組合せの場合、フィンの風上側端縁に着霜が起こ
り、それによって目詰まりがして空気の流通を疎外し易
い欠点があった。そこで本発明は、偏平多穴チューブと
プレートフィンとを用いた熱交換器において、上記の問
題点を取り除くことを課題とする。Further, there is a drawback that it is difficult to form a core with the plate fins and the flat multi-hole tube and bend the core into an L-shape or a U-shape to save space. Further, in the case of the combination of the flat multi-hole tube and the plate fin, there is a drawback that frost is generated on the windward end edge of the fin and clogging is caused thereby, and air circulation is apt to be alienated. Therefore, an object of the present invention is to eliminate the above-mentioned problems in a heat exchanger using a flat multi-hole tube and plate fins.
【０００７】[0007]
【課題を解決するための手段】請求項１に記載の本発明
は、小隙を有して互いに平行に並列された多数のプレー
トフィンと、そのプレートフィンを貫通する多数のチュ
ーブと、夫々のチューブの両端が連通する一対のタンク
と、を有する空調用プレートフィン型熱交換器におい
て、前記チューブは、その断面が偏平に形成されると共
に、その断面の長手方向に離間して多数の仕切部(1a)が
互いに平行に一体形成された偏平チューブ(1) で構成さ
れ、前記プレートフィン(2) にはその長手方向に定間隔
に離間して多数の偏平孔(3) が形成されると共に、その
偏平孔(3) の孔縁部をプレートの平面に直角に立ち上げ
て、そこにカラー部(4) が形成され、そのカラー部(4)
は、プレートの平面の付根部の断面が先細りのテーパと
なるテーパ部(5) を有すると共に、先端部に対向面が互
いに平行な平行面部(6) を有し、その平行面部(6) の内
周と前記偏平チューブ(1) の外周とが整合すると共に、
偏平チューブ(1) の外周とその平行面部(6) の内周との
間がろう付け固定されてなる空調用プレートフィン型熱
交換器である。The present invention according to claim 1 is directed to a plurality of plate fins arranged in parallel with each other with a small gap, a plurality of tubes penetrating the plate fins, and In a plate fin type heat exchanger for air conditioning, which has a pair of tanks in which both ends of the tube communicate with each other, the tube is formed to have a flat cross section, and a large number of partition parts are separated in the longitudinal direction of the cross section. (1a) is composed of flat tubes (1) integrally formed in parallel with each other, and a large number of flat holes (3) are formed in the plate fin (2) at regular intervals in the longitudinal direction thereof. , The hole edge of the flat hole (3) rises at a right angle to the plane of the plate, and the collar part (4) is formed there, and the collar part (4)
Has a tapered portion (5) in which the cross section of the root portion of the flat surface of the plate is tapered, and has parallel surface portions (6) whose opposing surfaces are parallel to each other at the tip, and the parallel surface portion (6) of the parallel surface portion (6) is While aligning the inner circumference with the outer circumference of the flat tube (1),
This is a plate fin type heat exchanger for air conditioning in which the outer circumference of the flat tube (1) and the inner circumference of its parallel surface portion (6) are fixed by brazing.
【０００８】請求項２に記載の本発明は、請求項１にお
いて、前記プレートフィン(2) の前記カラー部(4) の開
口縁の平面は、一対の平行線部と両平行線部の両端間を
連結する一対の半円線部(3a)とで構成され、その半円線
部(3a)の中間で、そのカラー部(4) にＶ字状に割れた、
Ｖ字割れ部(3b)が予め形成されてなる空調用プレートフ
ィン型熱交換器とすることができるものである。According to a second aspect of the present invention, in the first aspect, the plane of the opening edge of the collar portion (4) of the plate fin (2) has a pair of parallel line portions and both end portions of both parallel line portions. It is composed of a pair of semi-circular line parts (3a) that connect between them, and it is split in the middle of the semi-circular line parts (3a) in the collar part (4) in a V shape,
This is a plate fin type heat exchanger for air conditioning in which a V-shaped crack (3b) is formed in advance.
【０００９】請求項３に記載の本発明は、請求項１また
は請求項２において、前記プレートフィン(2) の偏平孔
(3) が、空気流通方向の下流側に偏って形成され、その
プレートフィン(2) の上流側端縁とその偏平孔(3) の上
流側端縁との距離が、その偏平孔(3) の下流側端縁とプ
レートフィン(2) の下流側端縁との距離よりも長く形成
され、多数の前記プレートフィン(2) および多数の前記
偏平チューブ(1) で構成されたコアは、その偏平チュー
ブ(1) の平面を保った状態で、風下側の曲率が風上側の
それより小さくなるように湾曲されてなる空調用プレー
トフィン型熱交換器とすることができるものである。The present invention according to claim 3 provides the flat hole of the plate fin (2) according to claim 1 or 2.
(3) is formed on the downstream side in the air flow direction, and the distance between the upstream edge of the plate fin (2) and the upstream edge of the flat hole (3) is the flat hole (3 ) Is formed longer than the distance between the downstream side edge of the plate fin (2) and the downstream side edge of the plate fin (2), and the core composed of many plate fins (2) and many flat tubes (1) is The plate fin type heat exchanger for air conditioning can be formed by keeping the flat tube (1) in a flat state so that the curvature on the leeward side is smaller than that on the leeward side.
【００１０】請求項４に記載の本発明は、請求項３にお
いて、前記偏平チューブ(1) の外面と、プレートフィン
(2) のカラー部(4) の平行面部(6) とがろう付けされる
と共に、そのテーパ部(5) は殆どろう付けされないよう
に構成された空調用プレートフィン型熱交換器とするこ
とができるものである。According to a fourth aspect of the present invention, in the third aspect, the outer surface of the flat tube (1) and the plate fin
The plate fin type heat exchanger for air conditioning shall be constructed so that the parallel surface portion (6) of the collar portion (4) of (2) and the taper portion (5) are hardly brazed. Is something that can be done.
【００１１】[0011]
【発明の実施の形態】次に、図面に基づいて本発明の実
施の形態につき説明する。図１（Ａ）は本発明の空調用
プレートフィン型熱交換器における偏平チューブ１とプ
レートフィン２との要部分解斜視図であり、図１（Ｂ）
は偏平チューブ１の要部平面図である。そして図２
（Ａ）は同熱交換器のプレートフィン２のカラー部４の
縦断面図であり、図２（Ｂ）はその要部平面図を示す。
また、図３は偏平チューブ１とプレートフィン２との接
合状態を示す縦断面略図、図４は同空調用プレートフィ
ン型熱交換器の一部破断正面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 (A) is an exploded perspective view of essential parts of a flat tube 1 and a plate fin 2 in a plate fin type heat exchanger for air conditioning of the present invention, and FIG.
FIG. 3 is a plan view of a main part of the flat tube 1. And Figure 2
FIG. 2A is a vertical sectional view of the collar portion 4 of the plate fin 2 of the heat exchanger, and FIG.
Further, FIG. 3 is a schematic vertical cross-sectional view showing a joined state of the flat tube 1 and the plate fins 2, and FIG. 4 is a partially cutaway front view of the air conditioning plate fin type heat exchanger.
【００１２】この熱交換器は、図４に示す如く小隙を有
して互いに平行に並列された多数のプレートフィン２
と、そのプレートフィン２を貫通する多数の偏平チュー
ブ１と、夫々の偏平チューブ１の両端が連通する一対の
第１タンク16，第２タンク17とを有する。そしてその偏
平チューブ１は図１（Ａ）に示す如く、その断面の長手
方向に離間して多数の仕切部１ａが互いに平行に一体形
成されたアルミニューム製の押出管からなり、夫々同一
長さに切断されると共に、その長手方向両端縁は図１
（Ｂ）の如く僅かにその断面を縮小するサイジング加工
部１ｂが環状に形成されている。このサイジング加工部
１ｂの長さｈは３ｍｍ程度で充分であると共に、その先
端の縮小代ｄは０．３ｍｍ程度で充分である。このサイ
ジング加工部１ｂにより、多数のプレートフィン２の偏
平孔３への挿通を容易にする。This heat exchanger has a large number of plate fins 2 arranged in parallel with each other with a small gap as shown in FIG.
And a large number of flat tubes 1 penetrating the plate fins 2, and a pair of first tank 16 and second tank 17 in which both ends of each flat tube 1 communicate with each other. As shown in FIG. 1 (A), the flat tube 1 is made of an aluminum extruded tube in which a large number of partition portions 1a are integrally formed in parallel with each other and are separated from each other in the longitudinal direction of the cross section. 1 and its longitudinal edges are shown in FIG.
As shown in (B), a sizing processing portion 1b is formed in an annular shape to reduce its cross section slightly. It is sufficient that the length h of the sizing processing portion 1b is about 3 mm and the reduction allowance d of the tip thereof is about 0.3 mm. The sizing processing portion 1b facilitates insertion of a large number of plate fins 2 into the flat holes 3.
【００１３】次に、プレートフィン２にはその長手方向
に互いに離間し、多数の偏平孔３が形成されると共に、
その孔縁部がプレートの平面に直角に立上げられてカラ
ー部４が形成される。このカラー部４は、プレートフィ
ン２の平面の付根部の断面が図２（Ａ）の如く先細りの
テーパとなるテーパ部５を有すると共に、先端部に対向
面が互いに平行な平行面部６を有する。このカラー部４
の開口縁の平面は図２（Ｂ）の如く、一対の平行線部と
両平行線部の両端間を連結する一対の半円線部３ａとで
構成され、その半円線部３ａの中央にＶ字状に割れたＶ
字割れ部３ｂが形成される。このＶ字割れ部３ｂは、偏
平チューブ１を偏平孔３に挿通する際の挿通抵抗を小さ
くできるものである。しかしながら、必ずしもＶ字割れ
部３ｂをカラー部４に設けなければならないものでもな
い。Next, a large number of flat holes 3 are formed in the plate fin 2 so as to be separated from each other in the longitudinal direction thereof, and
The edge of the hole is raised at right angles to the plane of the plate to form the collar portion 4. The collar portion 4 has a tapered portion 5 in which the cross section of the root portion of the plane of the plate fin 2 is tapered as shown in FIG. 2 (A), and has parallel surface portions 6 whose opposing surfaces are parallel to each other at the tip portion. . This color part 4
2B, the plane of the opening edge is composed of a pair of parallel line portions and a pair of semicircular line portions 3a connecting both ends of the parallel line portions, and the center of the semicircular line portion 3a. V cracked in V shape
The character broken portion 3b is formed. The V-shaped cracked portion 3b can reduce the insertion resistance when the flat tube 1 is inserted into the flat hole 3. However, it is not always necessary to provide the V-shaped crack portion 3b in the collar portion 4.
【００１４】図２（Ａ）において、テーパ部５の傾斜角
度θは１０°〜３０°程度が好ましい。また、偏平孔３
の平行面部６の短径方向の長さＥ2 は偏平チューブ１の
断面における短径Ｅ1 に等しいか、極めて僅か（一例し
て０．０５ｍｍ）それより小に形成される。なお、偏平
孔３の平行面部６における長軸（長径）方向長さは、偏
平チューブ１の長径よりも極めて僅か（一例して０．０
５〜０．３ｍｍ程度）長く形成されているのが好まし
い。なおこの例では、偏平チューブ１の断面における長
軸長さ（長径方向の長さ）は１６ｍｍであり、短軸長さ
は１．６ｍｍである。勿論、これらの寸法は適宜変更で
きることは言うまでもない。In FIG. 2A, the inclination angle θ of the tapered portion 5 is preferably about 10 ° to 30 °. Also, the flat hole 3
The length E 2 of the parallel surface portion 6 in the minor axis direction is equal to the minor axis E 1 in the cross section of the flat tube 1 or is extremely small (0.05 mm as an example) smaller than that. The major axis (major axis) direction length of the parallel surface portion 6 of the flat hole 3 is much smaller than the major axis of the flat tube 1 (0.0 as an example).
It is preferably formed long (about 5 to 0.3 mm). In this example, the cross section of the flat tube 1 has a major axis length (length in the major axis direction) of 16 mm and a minor axis length of 1.6 mm. Of course, it goes without saying that these dimensions can be changed appropriately.
【００１５】また、偏平孔３の長手方向両端に隣接し
て、切り起こし部18が切り起こし形成されている。この
ようなプレートフィン２は互いに並列に配置され、夫々
のカラー部４が整合する。そしてそこに偏平チューブ１
が挿通され、その挿通部が図３の如くろう付けされて、
その挿通部にろう材のフィレット７が形成される。この
例では、フィレット７は平行面部６と偏平チューブ１と
の間及びテーパ部５の先端に形成されている。そしてテ
ーパ部５の殆どは、ろう付けされていない。なお、隣接
する偏平孔３のピッチはこの例では７．６〜２０ｍｍ程
度である。Further, cut-and-raised portions 18 are formed by being cut-and-raised adjacent to both ends of the flat hole 3 in the longitudinal direction. Such plate fins 2 are arranged in parallel with each other, and the respective collar portions 4 are aligned with each other. And there flat tube 1
Is inserted, and the insertion part is brazed as shown in FIG.
A fillet 7 of brazing material is formed in the insertion portion. In this example, the fillet 7 is formed between the parallel surface portion 6 and the flat tube 1 and at the tip of the tapered portion 5. Most of the tapered portion 5 is not brazed. The pitch of the adjacent flat holes 3 is about 7.6 to 20 mm in this example.
【００１６】次に、図５は偏平チューブ１とプレートフ
ィン２との挿通状態における他の例である。この例は、
プレートフィン２の偏平孔３が空気流14の下流側に偏っ
て配置され、そのプレートフィン２の上流側端縁と偏平
孔３の上流側端縁との距離Ｄ1 が、偏平孔３の下流側端
縁とプレートフィン２の下流側端縁との距離Ｄ2 よりも
長く形成されたものである。一例として偏平チューブ１
の断面における長軸長さを１６ｍｍとすれば、Ｄ1 は
３．８ｍｍ〜８ｍｍ程でありＤ2 は１．８ｍｍ〜５ｍｍ
程である。Next, FIG. 5 shows another example in which the flat tube 1 and the plate fin 2 are inserted. This example
The flat holes 3 of the plate fins 2 are eccentrically arranged on the downstream side of the air flow 14, and the distance D 1 between the upstream edge of the plate fins 2 and the upstream edge of the flat holes 3 is downstream of the flat holes 3. It is formed longer than the distance D 2 between the side edge and the downstream edge of the plate fin 2. Flat tube 1 as an example
If the major axis length in the cross section is 16 mm, D 1 is about 3.8 mm to 8 mm and D 2 is 1.8 mm to 5 mm.
It is about.
【００１７】このようにＤ2 をＤ1 に比べて小さくした
のは、図６の如くコア全体をＤ2 側に折り曲げて湾曲部
11を形成したとき、その隣接するプレートフィン２の下
流側端縁（Ｄ2 側）どうしが接触しないようにするため
である。また、Ｄ1 をより長くしたのは空気流14の上流
側の着霜を防止するためでもあり。それが短いと着霜が
生じてそれにより目詰まりが起こるので、それを可能な
限り防止するものである。即ち、Ｄ1 を長くとることに
より、プレートフィン２の上流側端縁部分のフィン効率
を低下して、その端縁ではフィンと空気の温度差を小さ
くすることにより、着霜を防止する。そしてフィン上流
側端縁からチューブ上流側近傍付近に均一な霜が僅かに
付くようにして、端縁における霜の成長を防止して空気
の流通を確保するものである。As described above, the reason why D 2 is made smaller than D 1 is that the entire core is bent toward the D 2 side as shown in FIG.
This is to prevent the downstream end edges (D 2 side) of the adjacent plate fins 2 from contacting each other when forming 11. Further, the reason why D 1 is made longer is to prevent frost formation on the upstream side of the air flow 14. When it is short, frost is formed and clogging occurs, which is to prevent it as much as possible. That is, by increasing the length of D 1 , the fin efficiency of the upstream edge portion of the plate fin 2 is reduced, and the temperature difference between the fin and the air is reduced at that edge, thereby preventing frost formation. A small amount of uniform frost is applied from the fin upstream side edge to the vicinity of the tube upstream side to prevent the growth of frost at the edge and ensure the flow of air.
【００１８】なお、図６において第１タンク16は３つの
仕切12により長手方向に４分割して室16ａ〜16ｄを形成
し、第２タンク17では２つの仕切12によって３つに分割
した室17ａ〜17ｃを形成している。そしてこの熱交換器
をコンデンサとして使用する場合には、同図の如く冷媒
13を上側の出入口パイプ９から導入し、室16ａから複数
の偏平チューブ１を介して室17ａに導き、それを内部で
下方に導き、室17ａから室16ｂに矢印の如く流通させそ
れを順次蛇行させて、最後に室16ｄから出入口パイプ10
を介しエバポレータ側に導くものである。また、図４の
場合も同様に、冷媒13が一対の第１タンク16と第２タン
ク17との間を蛇行状に流通する。In FIG. 6, the first tank 16 is divided into four chambers 16a to 16d in the longitudinal direction by three partitions 12, and the second tank 17 is divided into three chambers 17a by two partitions 12. Forming ~ 17c. When using this heat exchanger as a condenser, the refrigerant
13 is introduced from the upper inlet / outlet pipe 9 and is guided from the chamber 16a to the chamber 17a through the plurality of flat tubes 1 and is guided internally downward, and is circulated from the chamber 17a to the chamber 16b as shown by an arrow to meander in sequence. Finally, from the room 16d to the entrance pipe 10
It is guided to the evaporator side via. Similarly, in the case of FIG. 4, the refrigerant 13 circulates in a meandering manner between the pair of first tank 16 and second tank 17.
【００１９】次に、図８は偏平チューブ１とプレートフ
ィン２とからなるコアの各変形例を示し、（Ａ）は偏平
チューブ１の平面がコ字状になるように形成され、
（Ｂ）ではＵ字状に、（Ｃ）ではＪ字状に、（Ｄ）では
円弧状になるように形成されたものである。Next, FIG. 8 shows each modification of the core composed of the flat tube 1 and the plate fins 2. FIG. 8A is formed so that the flat tube 1 has a U-shaped plane.
It is formed in a U shape in (B), in a J shape in (C), and in an arc shape in (D).
【００２０】[0020]
【発明の作用・効果】本発明の空調用プレートフィン型
熱交換器は、プレートフィン２の偏平孔３の孔縁部にカ
ラー部４が立上げ形成され、そのカラー部４は付根部の
断面が先細りのテーパとなるがテーパ部５で先端部に平
行面部６が形成されている。そしてその平行面部６の内
周と、偏平チューブ１の外周とが整合し、その偏平チュ
ーブ１の外周と平行面部６の内周との間がろう付け固定
されるものである。即ち、その平行面部６は対向面が互
いに平行に形成されているため、プレートフィン２と偏
平チューブ１との熱伝達を良好に行い得る。しかも、カ
ラー部４の付根部にはテーパ部５が形成されているた
め、偏平チューブ１の挿通が容易である。According to the plate fin type heat exchanger for air conditioning of the present invention, the collar portion 4 is formed upright at the edge of the flat hole 3 of the plate fin 2, and the collar portion 4 has a cross section of the root portion. Has a taper, but a parallel surface portion 6 is formed at the tip of the tapered portion 5. Then, the inner circumference of the parallel surface portion 6 and the outer circumference of the flat tube 1 are aligned, and the outer circumference of the flat tube 1 and the inner circumference of the parallel surface portion 6 are fixed by brazing. That is, since the opposing surfaces of the parallel surface portions 6 are formed in parallel with each other, heat transfer between the plate fins 2 and the flat tubes 1 can be favorably performed. Moreover, since the tapered portion 5 is formed at the root portion of the collar portion 4, the flat tube 1 can be easily inserted.
【００２１】請求項２に記載の本発明において、カラー
部４の半円線部３ａの中間にＶ字割れ部３ｂを予め形成
させることができる。その場合には偏平チューブ１をプ
レートフィン２の偏平孔３に挿通する際に、さらに容易
にその作業を行うことができる。即ち、Ｖ字割れ部３ｂ
の存在によりカラー部４を弾性変形させて、挿通抵抗を
小さくすることができる。そしてカラー部４の平行面部
６と偏平チューブ１の外面とを確実に接触させ、その部
分をろう付けすることが可能となる。In the present invention according to claim 2, a V-shaped crack portion 3b can be formed in advance in the middle of the semicircular line portion 3a of the collar portion 4. In that case, when the flat tube 1 is inserted into the flat hole 3 of the plate fin 2, the work can be performed more easily. That is, the V-shaped crack 3b
The presence of the elastically deforms the collar portion 4 to reduce the insertion resistance. Then, the parallel surface portion 6 of the collar portion 4 and the outer surface of the flat tube 1 can be surely brought into contact with each other, and that portion can be brazed.
【００２２】請求項３に記載の本発明は上記何れかの構
成において、プレートフィン２の偏平孔３を空気流通方
向の下流側に偏って形成し、偏平チューブ１の平面を保
った状態でコアの風下側の曲率が風上側のそれより小さ
くなるように湾曲形成することができる。この場合、偏
平チューブ１がその平面方向へ変形されるが、偏平チュ
ーブ１の外面に接触するプレートフィン２のろう付け部
は主として平行面部６のみであるから、その変形を比較
的容易に行い得る。また、偏平チューブ１に対しプレー
トフィン２の下流側の突出量は上流側のそれよりも小さ
く形成されているから、湾曲によりフィン間隔を保持し
て、湾曲部における空気の流通を確保できる。According to the present invention as set forth in claim 3, in any one of the above-mentioned constitutions, the flat holes 3 of the plate fins 2 are formed so as to be biased to the downstream side in the air flow direction, and the flat tube 1 is kept flat while maintaining the flat core. Can be curved so that the curvature on the leeward side is smaller than that on the leeward side. In this case, the flat tube 1 is deformed in the plane direction, but since the brazing portion of the plate fin 2 contacting the outer surface of the flat tube 1 is mainly only the parallel surface portion 6, the deformation can be relatively easily performed. . Further, the amount of protrusion of the plate fins 2 on the downstream side of the flat tube 1 is formed smaller than that on the upstream side, so that the fin interval can be maintained by bending and air circulation in the bending portion can be secured.
【００２３】請求項４に記載の本発明は、上記構成にお
いて、偏平チューブ１の外面とプレートフィン２のカラ
ー部４の平行面部６とがろう付けされると共に、そのテ
ーパ部５は殆どろう付けされないように構成することが
できる。それにより、偏平チューブ１の平面方向への湾
曲を円滑に行うことが可能となる。According to a fourth aspect of the present invention, in the above structure, the outer surface of the flat tube 1 and the parallel surface portion 6 of the collar portion 4 of the plate fin 2 are brazed, and the taper portion 5 thereof is almost brazed. It can be configured not to be. This allows the flat tube 1 to be smoothly curved in the plane direction.
【図１】本発明の空調用プレートフィン型熱交換器にお
ける偏平チューブ１とプレートフィン２との要部分解斜
視図及びその偏平チューブ１の要部平面図。FIG. 1 is an exploded perspective view of essential parts of a flat tube 1 and a plate fin 2 in a plate fin type heat exchanger for air conditioning of the present invention, and a plan view of essential parts of the flat tube 1.
【図２】同熱交換器のプレートフィン２のカラー部４に
おける縦断面拡大図及びその要部平面図。FIG. 2 is an enlarged vertical cross-sectional view of a collar portion 4 of a plate fin 2 of the heat exchanger and a plan view of relevant parts.
【図３】同熱交換器の偏平チューブ１とプレートフィン
２との接合状態を示す縦断面説明図。FIG. 3 is an explanatory longitudinal sectional view showing a joined state of the flat tubes 1 and the plate fins 2 of the heat exchanger.
【図４】同空調用プレートフィン型熱交換器の一部破断
正面図。FIG. 4 is a partially cutaway front view of the plate fin type heat exchanger for air conditioning.
【図５】同熱交換器のプレートフィン２と偏平チューブ
１の挿通状態を示す他の実施の形態の平面図。FIG. 5 is a plan view of another embodiment showing the inserted state of the plate fins 2 and the flat tubes 1 of the heat exchanger.
【図６】同偏平チューブ１及びプレートフィン２を用い
た熱交換器の斜視略図。FIG. 6 is a schematic perspective view of a heat exchanger using the flat tube 1 and the plate fins 2.
【図７】同熱交換器の平面図。FIG. 7 is a plan view of the heat exchanger.
【図８】本発明の空調用プレートフィン型熱交換器のコ
ア曲げの各種の例を示す平面図。FIG. 8 is a plan view showing various examples of core bending of the plate fin type heat exchanger for air conditioning of the present invention.
１ 偏平チューブ １ａ 仕切部 １ｂ サイジング加工部 ２ プレートフィン ３ 偏平孔 ３ａ 半円線部 ３ｂ Ｖ字割れ部 ４ カラー部 ５ テーパ部 ６ 平行面部 ７ フィレット ９ 出入口パイプ 10 出入口パイプ 11 湾曲部 12 仕切 13 冷媒 14 空気流 15 ブラケット 16 第１タンク 16ａ〜16ｄ 室 17 第２タンク 17ａ〜17ｃ 室 18 切り起こし部 1 Flat tube 1a partition 1b Sizing part 2 plate fins 3 flat holes 3a Semicircle part 3b V-shaped crack 4 color section 5 Tapered part 6 parallel surface 7 fillets 9 gateway pipe 10 entrance pipe 11 curved part 12 partitions 13 Refrigerant 14 air flow 15 bracket 16 First tank 16a-16d room 17 Second tank Room 17a-17c 18 Cut and raised part
Claims (4)
数のプレートフィンと、そのプレートフィンを貫通する
多数のチューブと、夫々のチューブの両端が連通する一
対のタンクと、を有する空調用プレートフィン型熱交換
器において、 前記チューブは、その断面が偏平に形成されると共に、
その断面の長手方向に離間して多数の仕切部(1a)が互い
に平行に一体形成された偏平チューブ(1) で構成され、 前記プレートフィン(2) にはその長手方向に定間隔に離
間して多数の偏平孔(3) が形成されると共に、その偏平
孔(3) の孔縁部をプレートの平面に直角に立ち上げて、
そこにカラー部(4) が形成され、 そのカラー部(4) は、プレートの平面の付根部の断面が
先細りのテーパとなるテーパ部(5) を有すると共に、先
端部に対向面が互いに平行な平行面部(6) を有し、 その平行面部(6) の内周と前記偏平チューブ(1) の外周
とが整合すると共に、偏平チューブ(1) の外周とその平
行面部(6) の内周との間がろう付け固定されてなる空調
用プレートフィン型熱交換器。1. An air conditioner comprising a large number of plate fins arranged in parallel with each other with a small gap, a large number of tubes penetrating the plate fins, and a pair of tanks in which both ends of each tube communicate with each other. In the plate fin type heat exchanger for use, the tube has a flat cross section, and
It is composed of a flat tube (1) in which a large number of partition parts (1a) are formed integrally in parallel with each other in the longitudinal direction of the cross section, and the plate fins (2) are spaced at regular intervals in the longitudinal direction. A large number of flat holes (3) are formed, and the edge of the flat holes (3) is raised at right angles to the plane of the plate,
A collar portion (4) is formed there, and the collar portion (4) has a taper portion (5) in which the cross section of the root of the plane of the plate is tapered, and the facing surfaces are parallel to each other at the tip. Parallel flat surface (6), the inner circumference of the parallel flat surface (6) and the outer circumference of the flat tube (1) are aligned, and the outer circumference of the flat flat tube (1) and the parallel flat surface (6) A plate fin type heat exchanger for air conditioning that is brazed and fixed to the circumference.
平面は、一対の平行線部と両平行線部の両端間を連結す
る一対の半円線部(3a)とで構成され、 その半円線部(3a)の中間で、そのカラー部(4) にＶ字状
に割れた、Ｖ字割れ部(3b)が予め形成されてなる空調用
プレートフィン型熱交換器。2. The flat surface of the opening edge of the collar portion (4) of the plate fin (2) according to claim 1, wherein a pair of semicircles connecting the pair of parallel line portions and both ends of the parallel line portions. An air conditioner that is composed of a line portion (3a) and a V-shaped crack portion (3b) that is split in a V shape in the collar portion (4) in the middle of the semicircular line portion (3a). Plate fin type heat exchanger.
の下流側に偏って形成され、そのプレートフィン(2) の
上流側端縁とその偏平孔(3) の上流側端縁との距離が、
その偏平孔(3) の下流側端縁とプレートフィン(2) の下
流側端縁との距離よりも長く形成され、 多数の前記プレートフィン(2) および多数の前記偏平チ
ューブ(1) で構成されたコアは、その偏平チューブ(1)
の平面を保った状態で、風下側の曲率が風上側のそれよ
り小さくなるように湾曲されてなる空調用プレートフィ
ン型熱交換器。3. The flat hole (3) according to claim 1 or 2, wherein the flat hole (3) of the plate fin (2) is formed to be biased toward the downstream side in the air flow direction, and the plate fin (2) has an upstream end. The distance between the edge and the upstream edge of the flat hole (3) is
It is formed longer than the distance between the downstream edge of the flat hole (3) and the downstream edge of the plate fin (2), and is composed of a large number of the plate fins (2) and a large number of the flat tubes (1). The core is a flat tube (1)
A plate fin type heat exchanger for air conditioning, which is curved so that the curvature on the leeward side is smaller than that on the leeward side while maintaining the flat surface.
カラー部(4) の平行面部(6) とがろう付けされると共
に、そのテーパ部(5) は殆どろう付けされないように構
成された空調用プレートフィン型熱交換器。4. The outer surface of the flat tube (1) according to claim 3, and the parallel surface portion (6) of the collar portion (4) of the plate fin (2) are brazed together, and the tapered portion (5 ) Is a plate fin type heat exchanger for air conditioning configured so as to be hardly brazed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001355949A JP2003161589A (en) | 2001-11-21 | 2001-11-21 | Air conditioning plate fin type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001355949A JP2003161589A (en) | 2001-11-21 | 2001-11-21 | Air conditioning plate fin type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003161589A true JP2003161589A (en) | 2003-06-06 |
Family
ID=19167563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001355949A Pending JP2003161589A (en) | 2001-11-21 | 2001-11-21 | Air conditioning plate fin type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003161589A (en) |
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| JP7383687B2 (en) | 2013-12-13 | 2023-11-20 | ヴァレオ システム テルミク | Collection box and corresponding heat exchanger |
| KR101732184B1 (en) * | 2014-05-20 | 2017-05-11 | 조한용 | Fin tube heat exchanger having shrink ring and method for manufacturing the heat exchanger |
| WO2019004139A1 (en) * | 2017-06-30 | 2019-01-03 | ダイキン工業株式会社 | Heat exchanger |
| JP2019011923A (en) * | 2017-06-30 | 2019-01-24 | ダイキン工業株式会社 | Heat exchanger |
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