JP3378838B2 - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JP3378838B2 JP3378838B2 JP26683599A JP26683599A JP3378838B2 JP 3378838 B2 JP3378838 B2 JP 3378838B2 JP 26683599 A JP26683599 A JP 26683599A JP 26683599 A JP26683599 A JP 26683599A JP 3378838 B2 JP3378838 B2 JP 3378838B2
- Authority
- JP
- Japan
- Prior art keywords
- fin
- flat tube
- heat exchanger
- dew
- fins
- 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.)
- Expired - Fee Related
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
- F28F17/00—Removing ice or water from heat-exchange apparatus
-
- 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
- F28D1/053—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 straight
- F28D1/0535—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 straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
-
- 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
- F28F1/126—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 consisting of zig-zag shaped fins
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＣＯ2などを冷媒
として使用する空調機器など、たとえばＣＯ2エアコン
などに用いられる熱交換器に関するものである。特に蒸
発器として使用する場合、すなわち、空気を冷却するた
めに使用する場合に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used for an air conditioner that uses CO 2 or the like as a refrigerant, such as a CO 2 air conditioner. In particular, it relates to use as an evaporator, that is, to cool air.
【０００２】[0002]
【従来の技術】図５に従来の熱交換器１の一例を示す。
これは、コルゲートフィン型と呼ばれるものであり、上
板２ｂと下板２ａとの間に、複数の偏平管４が平行に配
置され、各偏平管４同士の間は、波形に曲げられた帯状
の金属薄板からなるフィン３が介在している。この一部
分２００を取出して拡大したものを図６に示す。図６に
は、説明のために偏平管４の断面も表示してある。偏平
管４の内部には冷媒が循環するための穴４１が複数設け
られている。冷媒は、冷媒入口６から一方のヘッダパイ
プ５１内に流入し、偏平管４内の穴４１を通過すること
によって、他方のヘッダパイプ５２に至る。冷媒は、一
定の順路に沿って２つのヘッダパイプ５１，５２の間を
１回以上往復し、冷媒出口７から排出される。2. Description of the Related Art FIG. 5 shows an example of a conventional heat exchanger 1.
This is called a corrugated fin type, and a plurality of flat tubes 4 are arranged in parallel between the upper plate 2b and the lower plate 2a, and the flat tubes 4 are bent in a corrugated shape. The fin 3 made of a thin metal plate is interposed. FIG. 6 shows an enlarged view of the portion 200 taken out. FIG. 6 also shows a cross section of the flat tube 4 for the sake of explanation. A plurality of holes 41 for circulating the refrigerant are provided inside the flat tube 4. The refrigerant flows from the refrigerant inlet 6 into the one header pipe 51 and passes through the hole 41 in the flat tube 4 to reach the other header pipe 52. The refrigerant reciprocates between the two header pipes 51 and 52 one or more times along a certain route, and is discharged from the refrigerant outlet 7.
【０００３】一方、被冷却流体としての空気は、図６に
おける手前・奥方向にフィン３の隙間を通過する。フィ
ン３とその上下の偏平管４との間では、接触部分８を通
じて熱交換が可能である。したがって、通過する空気
は、偏平管４の表面との間の熱交換に加えて、フィン３
の表面との間においても熱交換が可能となる。その結
果、熱交換可能な表面積が増大するため、効率良く空気
を冷却することができる。On the other hand, air as the fluid to be cooled passes through the gap between the fins 3 in the front and back directions in FIG. Heat can be exchanged between the fins 3 and the flat tubes 4 above and below the fins 3 through the contact portions 8. Therefore, the air passing therethrough, in addition to the heat exchange with the surface of the flat tube 4, also passes through the fins 3
It is possible to exchange heat with the surface of the. As a result, the surface area capable of heat exchange is increased, so that the air can be efficiently cooled.
【０００４】[0004]
【発明が解決しようとする課題】熱交換器を蒸発器とし
て使用する場合、空気中の水蒸気が、図７に示すように
フィン３に露９として付着する場合がある。特にフィン
３と偏平管４とによって構成される凹部では、近傍の空
気の温度が過度に低下しやすく、かつ、空気が通りにく
いため、露９が発生しやすい。また、そのような凹部で
は、露９は表面張力によって周囲のフィン３などに安定
支持されやすく、かつ、空気が通りにくいため、一旦生
じた露が落下しにくい。凹部が鋭角をなすＶ字形である
場合などには、この傾向が顕著である。When the heat exchanger is used as an evaporator, water vapor in the air may adhere to the fins 3 as dew 9 as shown in FIG. In particular, in the concave portion formed by the fins 3 and the flat tubes 4, the temperature of the air in the vicinity is likely to be excessively lowered, and it is difficult for the air to pass, so that dew 9 is likely to occur. Further, in such a concave portion, the dew 9 is likely to be stably supported by the surrounding fins 3 and the like due to the surface tension, and since it is difficult for air to pass through, the dew once generated does not easily drop. This tendency is remarkable when the concave portion has a V-shape with an acute angle.
【０００５】露９が成長する場合は、フィン３と偏平管
４とに囲まれる通風部分１０の面積は、徐々に狭められ
ることとなる。露９が落下せずに成長した場合、図８に
示すように通風部分１０の面積は著しく小さくなり、場
合によっては、完全にふさがれる場合もある。通風部分
１０の一部または全部が露９によってふさがれた場合、
熱交換可能な表面積が減少するのみならず、空気の通り
道も減少するため、熱交換器１の熱交換性能が極端に低
下する。したがって、生じた露９を効率良く落下させる
ことが重要となる。この対策として、たとえば、従来の
波形のままフィン３のピッチを単に広げることが考えら
れ、確かに、空気は通りやすくなり、露９の落下は容易
になるが、これは同時に、通風部分１０の空気の単位体
積当りのフィン３の表面積を著しく減少させることにも
なり、熱交換器１の熱交換性能は著しく低下してしま
う。When the dew 9 grows, the area of the ventilation part 10 surrounded by the fins 3 and the flat tubes 4 is gradually narrowed. When the dew 9 grows without falling, the area of the ventilation part 10 becomes extremely small as shown in FIG. 8, and in some cases, it may be completely blocked. When a part or all of the ventilation part 10 is blocked by the dew 9,
Not only the heat exchangeable surface area is reduced, but also the air passage is reduced, so that the heat exchange performance of the heat exchanger 1 is extremely reduced. Therefore, it is important to efficiently drop the generated dew 9. As a countermeasure against this, for example, it is conceivable to simply widen the pitch of the fins 3 with the conventional waveform, and it is easy for air to pass through and the dew 9 to fall easily. The surface area of the fins 3 per unit volume of air is significantly reduced, and the heat exchange performance of the heat exchanger 1 is significantly reduced.
【０００６】そこで、本発明は、フィン３の表面積を著
しく減少させることなく、露９の落下を効率良く行なえ
る、または、露９の付着しにくい、熱交換器１を得るこ
とを目的とする。Therefore, an object of the present invention is to obtain a heat exchanger 1 in which the dew 9 can be efficiently dropped or the dew 9 is not easily attached without significantly reducing the surface area of the fin 3. .
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明に基づく熱交換器の１つの局面においては、
被冷却流体の進入方向から見たときに、山形形状の繰返
しを含むフィンと、上記フィンを介在して平行に配置さ
れた二以上の偏平管とを備える熱交換器であって、上記
フィンと、上記フィンの下側に接する上記偏平管である
下側偏平管とで囲まれる各領域の面積が、上記フィン
と、上記フィンの上側に接する上記偏平管である上側偏
平管とで囲まれる各領域の面積より大きい。In order to achieve the above object, in one aspect of a heat exchanger according to the present invention,
A heat exchanger comprising a fin including a repeating chevron shape and two or more flat tubes arranged in parallel with each other with the fin interposed therebetween, as viewed from the direction in which the fluid to be cooled enters. The area of each region surrounded by the lower flat tube which is the flat tube in contact with the lower side of the fin is surrounded by the fin and the upper flat tube which is the flat tube in contact with the upper side of the fin. It is larger than the area of the region.
【０００８】また、上記発明において好ましくは、上記
上側偏平管と上記下側偏平管との中間において、上記フ
ィンの下面同士が対向する距離が、上記フィンの上面同
士が対向する距離より大きい。In the above invention, preferably, the distance between the lower surfaces of the fins is greater than the distance between the upper surfaces of the fins in the middle of the upper flat tube and the lower flat tube.
【０００９】上記構成を採用することにより、上記フィ
ンと、上記フィンの下側に接する上記偏平管である下側
偏平管とで囲まれる各領域は、被冷却流体が通りやすく
なり、露が付着しにくく、かつ、仮に露が付着しても落
下しやすくなる。フィンの表面積自体は従来とほとんど
変わらないため、熱交換性能を低下させずに、露が付着
しにくく、落下しやすい熱交換器を得ることが可能とな
る。By adopting the above-mentioned structure, the fluid to be cooled easily passes through each region surrounded by the fin and the lower flat tube which is the flat tube in contact with the lower side of the fin, and dew adheres to the area. It is difficult to do so, and even if dew adheres, it easily falls. Since the surface area of the fin itself is almost the same as that of the conventional one, it is possible to obtain a heat exchanger in which dew does not easily adhere and drops easily without lowering the heat exchange performance.
【００１０】さらに、上記発明において好ましくは、上
記フィンが上記上側偏平管に接する各箇所の接触面積
が、上記フィンが上記下側偏平管に接する各箇所の接触
面積より大きい。Further, in the above invention, preferably, the contact area of each part where the fin contacts the upper flat tube is larger than the contact area of each part where the fin contacts the lower flat tube.
【００１１】上記構成を採用することにより、フィンが
上側偏平管に接する各箇所は伝熱経路としての機能を十
分発揮することができ、フィンが下側偏平管に接する各
箇所における接触面積の減少による熱交換性能の低下を
補って、全体として熱交換性能をより確実に維持するこ
とが可能となる。By adopting the above structure, each part where the fin contacts the upper flat tube can sufficiently function as a heat transfer path, and the contact area at each part where the fin contacts the lower flat tube is reduced. By compensating for the decrease in heat exchange performance due to the above, it becomes possible to more reliably maintain the heat exchange performance as a whole.
【００１２】さらに、上記発明において好ましくは、上
記山形形状が、上に凸の曲線形状を備える。Further, in the above invention, preferably, the mountain shape has a curved shape which is convex upward.
【００１３】上記構成を採用することにより、フィンの
作製が容易となる。また、フィンと上側偏平管との接触
面積が確保しやすくなるため、熱交換に十分な接触面積
を確保することができる。By adopting the above structure, the fin can be easily manufactured. Further, since the contact area between the fin and the upper flat tube can be easily secured, the contact area sufficient for heat exchange can be secured.
【００１４】[0014]
【発明の実施の形態】（実施の形態１）本実施の形態に
おける熱交換器の一部分の構造を、図１に示す。偏平管
４は、平行に配置されている点は、従来の熱交換器１の
場合と同じであるが、偏平管４同士の間に介在させるフ
ィンとして、従来の波形フィン３の代りに、山形形状の
繰返しからなるフィン３０を用いている。図２は、本実
施の形態における熱交換器の一部分を被冷却流体進入方
向から見た形状を示す。フィン３０の上面と上側偏平管
４ｂとで囲まれる部分である上面側通風部分１０ｂの各
面積より、フィン３０の下面と下側偏平管４ａとで囲ま
れる部分である下面側通風部分１０ａの各面積の方が大
きくなっている。BEST MODE FOR CARRYING OUT THE INVENTION (Embodiment 1) FIG. 1 shows a partial structure of a heat exchanger according to the present embodiment. The flat tubes 4 are arranged in parallel in the same manner as in the conventional heat exchanger 1, but as fins to be interposed between the flat tubes 4, instead of the conventional corrugated fins 3, a chevron shape is formed. A fin 30 having a repeating shape is used. FIG. 2 shows a shape of a part of the heat exchanger according to the present embodiment as viewed from the cooling target fluid entering direction. From each area of the upper surface side ventilation portion 10b which is a portion surrounded by the upper surface of the fin 30 and the upper flat tube 4b, each of the lower surface side ventilation portion 10a which is a portion surrounded by the lower surface of the fin 30 and the lower flat tube 4a. The area is larger.
【００１５】また、図３に、本実施の形態における熱交
換器のフィン３０と従来の熱交換器のフィン３との比較
を示す。従来は、フィン３の下面同士が対向する下面間
距離１１とフィン３の上面同士が対向する上面間距離１
２とがほぼ等しくなっていたが、本実施の形態では、上
側偏平管４ｂと下側偏平管４ａとの中間において、下面
間距離１３が、上面間距離１４より大きくなっている。Further, FIG. 3 shows a comparison between the fins 30 of the heat exchanger of the present embodiment and the fins 3 of the conventional heat exchanger. Conventionally, the distance 11 between the lower surfaces where the lower surfaces of the fins 3 face each other and the distance 1 between the upper surfaces where the upper surfaces of the fins 3 face each other 1
In the present embodiment, the lower surface distance 13 is larger than the upper surface distance 14 in the middle of the upper flat tube 4b and the lower flat tube 4a.
【００１６】このような形状の場合、上面側通風部分１
０ｂは、鋭角をなす凹部を上下に有しているため、上側
偏平管４ｂとフィン３０との接合部付近およびＶ字形の
凹部である露付着部分１６に露９が付着しやすい。特に
下側の露付着部分１６においては、より上方で発生した
露９も重力によって流入するため露９が溜まりやすい。
その代わり、下面側通風部分１０ａは、上面通風部分１
０ｂほど狭い凹部を有しないため、露９が付着しにく
い。また、下面側通風部分１０ａは、面積が大きく、下
面間距離１３が大きくなっているため、空気が通りやす
く、仮に露９が付着したとしても空気の流れによって落
下を促進されやすい。In the case of such a shape, the upper surface ventilation portion 1
Since 0b has a concave portion on the upper side and a concave portion on the upper side, the dew 9 is likely to adhere to the vicinity of the joint between the upper flat tube 4b and the fin 30 and the dew attaching portion 16 which is a V-shaped concave portion. In particular, in the dew attachment portion 16 on the lower side, the dew 9 generated above also flows in due to gravity, so that the dew 9 tends to collect.
Instead, the lower surface side ventilation part 10a is the upper surface ventilation part 1
Since there is no recess as narrow as 0b, the dew 9 is less likely to adhere. Further, since the lower surface side ventilation portion 10a has a large area and the distance 13 between the lower surfaces is large, it is easy for air to pass through, and even if the dew 9 is attached, the fall of the air is easily promoted by the flow of air.
【００１７】また、図３に示されるように、本実施の形
態は、通風部分の空気の単位体積当りのフィン３の表面
積を従来のものに比べてほとんど変えずに、実現するこ
とができる。したがって、熱交換器１の熱交換性能を著
しく低下させることもない。Further, as shown in FIG. 3, this embodiment can be realized with almost no change in the surface area of the fin 3 per unit volume of air in the ventilation part as compared with the conventional one. Therefore, the heat exchange performance of the heat exchanger 1 is not significantly reduced.
【００１８】上面側通風部分１０ｂには露９が溜まりや
すいことから、部分的にみれば、熱交換性能がある程度
低下することは考えられるが、下面側通風部分１０ａが
露９によってふさがれることをより確実に防止できるよ
うになることで、全体としてみれば、一定の熱交換性能
で安定して使用可能な熱交換器を得ることが可能とな
る。Since the dew 9 tends to collect on the upper surface side ventilation part 10b, the heat exchange performance may be deteriorated to some extent, but the lower surface side ventilation part 10a is blocked by the dew 9. As a result of more reliable prevention, it is possible to obtain a heat exchanger that can be stably used with a constant heat exchange performance as a whole.
【００１９】（実施の形態２）実施の形態１では、フィ
ン３０の下側偏平管４ａに対する下部接触部分８ａを、
Ｖ字形の折れ曲がり部分による点接触としたが、本実施
の形態では、図４に示すフィン３０′のように、丸みを
帯びた曲げ部分である下部接触部分８ａ′によって下側
偏平管４ａに接触させる。この場合、上部接触部分８
ｂ′に比べて下部接触部分８ａ′は曲率半径が十分小さ
くなっている。このような形状とすることによっても、
実施の形態１と同様の効果を得ることができる。(Second Embodiment) In the first embodiment, the lower contact portion 8a with respect to the lower flat tube 4a of the fin 30 is
Although the point contact is made by the bent portion of V-shape, in the present embodiment, the lower flat tube 4a is contacted by the lower contact portion 8a 'which is a rounded bent portion like the fin 30' shown in FIG. Let In this case, the upper contact portion 8
The radius of curvature of the lower contact portion 8a 'is sufficiently smaller than that of b'. Even with such a shape,
The same effect as that of the first embodiment can be obtained.
【００２０】なお、今回開示した上記各実施の形態はす
べての点で例示であって制限的なものではない。本発明
の範囲は上記した説明ではなくて特許請求の範囲によっ
て示され、特許請求の範囲と均等の意味および範囲内で
のすべての変更を含むものである。It should be noted that the above-described embodiments disclosed this time are illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the scope of the claims, and includes meaning equivalent to the scope of the claims and all modifications within the scope.
【００２１】[0021]
【発明の効果】熱交換器のフィンを山形形状の繰返しか
らなるものとし、上側偏平管と下側偏平管との中間にお
いて、上面側通風部分の各面積より、下面側通風部分の
各面積の方が大きく、かつ、フィンの下面間距離が、フ
ィンの上面間距離より大きくなっているため、上面側通
風部分は、露が付着しやすくなるものの、下面側通風部
分は、露が付着しにくく、仮に露が付着したとしても落
下しやすくなる。その結果、全体として、一定の熱交換
性能で安定して使用可能な熱交換器を得ることができ
る。EFFECTS OF THE INVENTION The fins of the heat exchanger are composed of repeating chevron shapes, and in the middle of the upper flat tube and the lower flat tube, the areas of the lower surface side ventilation area are smaller than the areas of the upper surface side ventilation area. Is larger and the distance between the lower surfaces of the fins is larger than the distance between the upper surfaces of the fins, so that dew easily adheres to the upper surface side ventilation part, but dew does not easily adhere to the lower surface side ventilation part. Even if dew adheres, it easily falls. As a result, a heat exchanger that can be stably used with a constant heat exchange performance can be obtained as a whole.
【図１】 本発明に基づく実施の形態１における熱交換
器の一部分の構造を示す斜視断面図である。FIG. 1 is a perspective sectional view showing a structure of a part of a heat exchanger according to a first embodiment of the present invention.
【図２】 本発明に基づく実施の形態１における熱交換
器の一部分の正面図である。FIG. 2 is a front view of a part of the heat exchanger according to the first embodiment of the present invention.
【図３】 本発明に基づく実施の形態１における熱交換
器の一部分の幾何学的関係を示す投影図である。FIG. 3 is a projection view showing a geometrical relationship of a part of the heat exchanger according to the first embodiment of the present invention.
【図４】 本発明に基づく実施の形態２における熱交換
器の一部分の幾何学的関係を示す投影図である。FIG. 4 is a projection view showing a geometrical relationship of a part of the heat exchanger according to the second embodiment of the present invention.
【図５】 従来技術に基づく熱交換器の一例の斜視図で
ある。FIG. 5 is a perspective view of an example of a heat exchanger according to the related art.
【図６】 従来技術に基づく熱交換器の一部分の構造を
示す斜視断面図である。FIG. 6 is a perspective sectional view showing a structure of a part of a heat exchanger according to the related art.
【図７】 従来技術に基づく熱交換器の一部分の正面図
である。FIG. 7 is a front view of a portion of a heat exchanger according to the prior art.
【図８】 従来技術に基づく熱交換器の一部分において
露が成長した様子を示す正面図である。FIG. 8 is a front view showing how dew has grown in a part of the heat exchanger according to the related art.
１ 熱交換器、２ａ 下板、２ｂ 上板、３，３０，３
０′ フィン、４ 偏平管、４ａ 下偏平管、４ｂ 上
偏平管、６ 冷媒入口、７ 冷媒出口、８ 接触部分、
８ａ，８ａ′ 下部接触部分、８ｂ，８ｂ′ 上部接触
部分、９ 露、１０ 通風部分、１０ａ 下面側通風部
分、１０ｂ 上面側通風部分、１１，１３ 下面間距
離、１２，１４ 上面間距離、１６ 露付着部分、４１
穴、５１，５２ ヘッダパイプ、２００ 一部分。1 heat exchanger, 2a lower plate, 2b upper plate, 3, 30, 3
0'fin, 4 flat tube, 4a lower flat tube, 4b upper flat tube, 6 refrigerant inlet, 7 refrigerant outlet, 8 contact portion,
8a, 8a 'lower contact part, 8b, 8b' upper contact part, 9 dew, 10 ventilation part, 10a lower surface side ventilation part, 10b upper surface ventilation part, 11, 13 lower surface distance, 12, 14 upper surface distance, 16 Dew adhesion part, 41
Hole, 51,52 header pipe, 200 part.
フロントページの続き (56)参考文献 特開 平11−148795（ＪＰ，Ａ) 実開 昭63−30785（ＪＰ，Ｕ) 実開 平３−128267（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F25B 39/02 F25B 1/00 395 F28F 17/00 501 F28F 1/30 F25B 39/04 Continuation of the front page (56) Reference JP-A-11-148795 (JP, A) Actual development Sho 63-30785 (JP, U) Actual development 3-128267 (JP, U) (58) Fields investigated (Int .Cl. 7 , DB name) F25B 39/02 F25B 1/00 395 F28F 17/00 501 F28F 1/30 F25B 39/04
Claims (4)
山形形状の繰返しを含むフィンと、前記フィンを介在し
て平行に配置された二以上の偏平管とを備える熱交換器
であって、 前記フィンと、前記フィンの下側に接する前記偏平管で
ある下側偏平管とで囲まれる各領域の面積が、前記フィ
ンと、前記フィンの上側に接する前記偏平管である上側
偏平管とで囲まれる各領域の面積より大きい、熱交換
器。1. When viewed from the inflow direction of the fluid to be cooled,
A heat exchanger comprising a fin including a repeating chevron shape, and two or more flat tubes arranged in parallel with the fin interposed therebetween, wherein the fin and the flat tube in contact with a lower side of the fin A heat exchanger in which an area of each region surrounded by a certain lower flat tube is larger than an area of each region surrounded by the fin and an upper flat tube which is the flat tube in contact with the upper side of the fin.
間において、前記フィンの下面同士が対向する距離が、
前記フィンの上面同士が対向する距離より大きい、請求
項１に記載の熱交換器。2. The distance between the lower surfaces of the fins in the middle of the upper flat tube and the lower flat tube is
The heat exchanger according to claim 1, wherein upper surfaces of the fins are larger than a distance facing each other.
箇所の接触面積が、前記フィンが前記下側偏平管に接す
る各箇所の接触面積より大きい、請求項１または２に記
載の熱交換器。3. The heat exchanger according to claim 1, wherein a contact area of each location where the fin contacts the upper flat tube is larger than a contact area of each location where the fin contacts the lower flat tube. .
える、請求項１から３のいずれかに記載の熱交換器。4. The heat exchanger according to claim 1, wherein the chevron shape has a curved shape that is convex upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26683599A JP3378838B2 (en) | 1999-09-21 | 1999-09-21 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26683599A JP3378838B2 (en) | 1999-09-21 | 1999-09-21 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001091100A JP2001091100A (en) | 2001-04-06 |
| JP3378838B2 true JP3378838B2 (en) | 2003-02-17 |
Family
ID=17436330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26683599A Expired - Fee Related JP3378838B2 (en) | 1999-09-21 | 1999-09-21 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3378838B2 (en) |
-
1999
- 1999-09-21 JP JP26683599A patent/JP3378838B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001091100A (en) | 2001-04-06 |
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