JPH04273992A - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
JPH04273992A
JPH04273992A JP3277791A JP3277791A JPH04273992A JP H04273992 A JPH04273992 A JP H04273992A JP 3277791 A JP3277791 A JP 3277791A JP 3277791 A JP3277791 A JP 3277791A JP H04273992 A JPH04273992 A JP H04273992A
Authority
JP
Japan
Prior art keywords
fins
core
fin
heat exchanger
flat tube
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
JP3277791A
Other languages
Japanese (ja)
Inventor
Teruhiko Kameoka
輝彦 亀岡
Masayuki Nonogaki
昌之 野々垣
Shigeo Ito
茂雄 伊藤
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.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP3277791A priority Critical patent/JPH04273992A/en
Publication of JPH04273992A publication Critical patent/JPH04273992A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve a performance of a heat exchanger without increasing its cost. CONSTITUTION:A flat tube 1 and thermal radiation fins 2 are alternatively piled up to form a core assembly. The fins 2 show a fine elongated plate. The fins are arranged along a passage direction of the flat tube 1 while they are upright in a direction of the lamination of the core and a plurality of fins are arranged in parallel with a predetermined spacing being applied in a forward or a rearward direction of the core. A surface of each of the fins 2 is provided with louvers 3 cut and raised at a front surface of the core along a short side direction of each of the fins 2 with a specified pitch in a longitudinal side of each of the fins 2.

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、冷媒凝縮器やヒータコ
ア等の熱交換器に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to heat exchangers such as refrigerant condensers and heater cores.

【0002】0002

【従来の技術】例えば、車両に搭載される冷凍サイクル
の冷媒凝縮器として、冷媒通路を成す偏平チューブと放
熱用のコルゲートフィンとを交互に積層した積層型熱交
換器がある。この積層型熱交換器は、偏平チューブを蛇
行状に屈曲形成したサーペンタイン型熱交換器と比較し
て、冷媒圧損の低下による冷媒流量の増加、あるいはフ
ィン高さの低下等により、フィン効率を高めることがで
き、冷媒凝縮器の性能を向上させることができる。
2. Description of the Related Art For example, as a refrigerant condenser for a refrigeration cycle mounted on a vehicle, there is a laminated heat exchanger in which flat tubes forming refrigerant passages and corrugated fins for heat radiation are alternately laminated. Compared to a serpentine heat exchanger in which flat tubes are bent into a serpentine shape, this stacked heat exchanger improves fin efficiency by increasing refrigerant flow rate due to lower refrigerant pressure drop, and by reducing fin height. It is possible to improve the performance of the refrigerant condenser.

【0003】0003

【発明が解決しようとする課題】近年、車両の軽量化お
よび高性能化に伴い、冷媒凝縮器の設置スペースが縮小
傾向にある。そこで、フィンピッチおよびルーバピッチ
を詰めることで、空気側の伝熱面積を増加させて放熱性
能を向上させることにより、冷媒凝縮器の性能向上を図
ることが考えられる。
[Problems to be Solved by the Invention] In recent years, as vehicles have become lighter and more sophisticated, the installation space for refrigerant condensers has tended to shrink. Therefore, it is possible to improve the performance of the refrigerant condenser by increasing the heat transfer area on the air side and improving the heat radiation performance by narrowing the fin pitch and the louver pitch.

【0004】ところが、この方法では、それぞれのフィ
ンピッチに応じてルーバピッチの最適値が異なるため、
ルーバを形成する際に、フィンピッチに応じた複数のロ
ーラが必要となり、コスト高となる。
However, in this method, the optimum value of the louver pitch differs depending on the fin pitch.
When forming a louver, a plurality of rollers are required depending on the fin pitch, which increases costs.

【0005】本発明は、上記事情に基づいて成されたも
ので、その目的は、コストの上昇を伴うことなく、性能
向上を図ることのできる熱交換器を提供することにある
The present invention was made based on the above circumstances, and its object is to provide a heat exchanger that can improve performance without increasing cost.

【0006】[0006]

【課題を解決するための手段】本発明は、上記目的を達
成するために、流体通路を成す偏平チューブと放熱用の
フィンとが交互に積層されたコア形状を呈する熱交換器
において、前記フィンは、表面に多数のルーバが形成さ
れた板状を呈し、前記コアの積層方向に直立した状態で
前記偏平チューブの流路方向に延びて配設され、このフ
ィンが、前記コアの前後方向に所定の間隔を隔てて並列
に複数設けられたことを技術的手段とする。
[Means for Solving the Problems] In order to achieve the above object, the present invention provides a heat exchanger having a core shape in which flat tubes forming fluid passages and heat radiation fins are alternately stacked. has a plate shape with a large number of louvers formed on its surface, and is disposed upright in the stacking direction of the core and extends in the flow path direction of the flat tube, and the fins extend in the front-rear direction of the core. The technical means is that a plurality of them are provided in parallel at a predetermined interval.

【0007】[0007]

【作用】上記構成より成る本発明の熱交換器は、板状の
フィンが、コアの積層方向に直立した状態で偏平チュー
ブの流路方向に延びて配設されるため、フィンピッチに
関わりなくコアの前面面積が確保される。従って、フィ
ンピッチに応じてルーバピッチを変える必要がなく、コ
アの前後方向にフィンの間隔を詰めてフィンの数を増や
すことにより、空気側の伝熱面積が増加し、放熱性能を
向上させることができる。
[Function] In the heat exchanger of the present invention having the above configuration, the plate-shaped fins are disposed upright in the stacking direction of the core and extend in the flow path direction of the flat tubes, so that the heat exchanger is independent of the fin pitch. The front area of the core is secured. Therefore, there is no need to change the louver pitch according to the fin pitch, and by increasing the number of fins by narrowing the fin spacing in the front-rear direction of the core, the heat transfer area on the air side increases and heat dissipation performance can be improved. can.

【0008】[0008]

【発明の効果】本発明では、コアの前後方向におけるフ
ィンの間隔(フィンピッチ)に応じて各偏平チューブ間
に介在されるフィンの数を変える場合でも、ルーバピッ
チを変える必要がない。従って、フィンピッチに関わり
なく、同一のローラを使用することができるため、コス
トの上昇を伴うことなく、熱交換器の性能向上を図るこ
とができる。
According to the present invention, there is no need to change the louver pitch even when the number of fins interposed between each flat tube is changed depending on the fin spacing (fin pitch) in the longitudinal direction of the core. Therefore, the same roller can be used regardless of the fin pitch, so it is possible to improve the performance of the heat exchanger without increasing costs.

【0009】[0009]

【実施例】次に、本発明の熱交換器を図に示す一実施例
に基づき説明する。図1は偏平チューブとフィンとの関
係を示す斜視図、図2はフィンの斜視図である。
[Embodiment] Next, the heat exchanger of the present invention will be explained based on an embodiment shown in the drawings. FIG. 1 is a perspective view showing the relationship between a flat tube and a fin, and FIG. 2 is a perspective view of the fin.

【0010】本実施例の熱交換器は、例えば、車両用冷
凍サイクルの冷媒凝縮器で、偏平チューブ1と放熱用フ
ィン2とを交互に積層して構成されたコア形状を呈する
。偏平チューブ1は、内部に複数の冷媒通路1aを有し
、その両端部が、入口側タンクおよび出口側タンク(共
に図示せず)に接続されている。
The heat exchanger of this embodiment is, for example, a refrigerant condenser for a vehicular refrigeration cycle, and has a core shape formed by alternately stacking flat tubes 1 and heat radiation fins 2. The flat tube 1 has a plurality of refrigerant passages 1a inside, and both ends thereof are connected to an inlet side tank and an outlet side tank (both not shown).

【0011】フィン2は、細長い板状を呈し、コアの積
層方向に直立した状態で、偏平チューブ1の通路方向に
沿って配置され、且つ、コアの前後方向に所定の間隔(
例えば1mm)を隔てて、並列に複数設けられている。
The fins 2 have an elongated plate shape, are arranged along the passage direction of the flat tube 1 in an upright state in the stacking direction of the core, and are spaced at a predetermined interval (
For example, a plurality of them are provided in parallel with a distance of 1 mm) between them.

【0012】フィン2の表面には、図2にも示すように
、フィン2の短辺方向(図2上下方向)に沿ってコアの
前面側に切り起こされたルーバ3が、フィン2の長辺方
向に一定のピッチ(例えば0.7mm)で多数形成され
ている。
As shown in FIG. 2, on the surface of the fin 2, a louver 3 is cut and raised on the front side of the core along the short side direction (vertical direction in FIG. 2) of the fin 2. A large number of them are formed at a constant pitch (for example, 0.7 mm) in the side direction.

【0013】切り起こされたルーバ3は、コアを通過す
る空気がルーバ3の端面に当たるように、フィン2の表
面に対してほぼ垂直に立っている。但し、空気の流れを
制御するために、ルーバ3に特定の角度を付ける場合も
ある。従って、フィン2は、前面から見ると、ルーバ3
の切り起こされた跡の孔4とルーバ3の端面とが交互に
連続する形となり、各ルーバ3の切り起こされた跡の孔
4を送風空気が通過することになる。
The cut and raised louver 3 stands approximately perpendicular to the surface of the fin 2 so that the air passing through the core hits the end face of the louver 3. However, in order to control the flow of air, the louver 3 may be set at a specific angle. Therefore, when the fin 2 is viewed from the front, the louver 3
The holes 4 formed by the cut and raised portions of the louvers 3 and the end faces of the louvers 3 are alternately continuous, and the blown air passes through the holes 4 formed by the cut and raised portions of each louver 3.

【0014】フィン2の短辺方向の両端部は、コアの後
方側に向かって90度に折り曲げられており、その折り
曲げ部2aの高さに応じて、隣合うフィン2の間隔(フ
ィンピッチ)が決定される。つまり、折り曲げ部2aの
端面が、後側のフィン2と接触して配置されることによ
り、自動的にフィンピッチが決定される。従って、フィ
ン2の折り曲げ部2aの高さを低くすることにより、隣
合うフィン2との間隔が小さくなって、フィンピッチを
小さくすることができる。
Both ends of the fins 2 in the short side direction are bent at 90 degrees toward the rear side of the core, and the distance between adjacent fins 2 (fin pitch) is determined according to the height of the bent portion 2a. is determined. That is, the fin pitch is automatically determined by placing the end surface of the bent portion 2a in contact with the rear fin 2. Therefore, by reducing the height of the bent portion 2a of the fin 2, the distance between adjacent fins 2 becomes smaller, and the fin pitch can be reduced.

【0015】また、フィンピッチを変更する場合等には
、折り曲げ部2aの端面と、後側のフィン2との間にス
ペーサ等を介在させて、フィンピッチを調整するように
設けてもよい。
Further, when changing the fin pitch, a spacer or the like may be interposed between the end face of the bent portion 2a and the rear fin 2 to adjust the fin pitch.

【0016】上記のフィン2を使用した場合、フィン2
の表面に対してほぼ垂直に立てられたルーバ3の端面に
送風空気が当たることになる。ルーバ3の端面は前面面
積が小さい上、放熱効率が高いので、フィンピッチを詰
めて多数のフィン2を設置することにより、空気側の熱
伝達率が増大し、冷媒凝縮器の性能向上を図ることがで
きる。
When the above fin 2 is used, the fin 2
The blown air hits the end face of the louver 3, which is erected almost perpendicularly to the surface of the louver. The end face of the louver 3 has a small front surface area and high heat dissipation efficiency, so by narrowing the fin pitch and installing a large number of fins 2, the heat transfer coefficient on the air side increases and the performance of the refrigerant condenser is improved. be able to.

【0017】また、本実施例の冷媒凝縮器は、各偏平チ
ューブ1の間に介在されるフィン2が、コアの積層方向
に直立した状態で偏平チューブ1の通路方向に延びて配
設されているため、フィンピッチに関わりなくコアの前
面面積が確保されることになる。
Furthermore, in the refrigerant condenser of this embodiment, the fins 2 interposed between the flat tubes 1 are disposed to extend in the passage direction of the flat tubes 1 while standing upright in the stacking direction of the cores. Therefore, the front surface area of the core is secured regardless of the fin pitch.

【0018】従って、コアの前後方向におけるフィン2
の間隔(フィンピッチ)に応じて各偏平チューブ1の間
に介在されるフィン2の数を変える場合でも、ルーバピ
ッチを変える必要がない。よって、フィンピッチに関わ
りなく、同一のローラを使用することができるため、冷
媒凝縮器の性能向上に伴うコストの上昇を抑えることが
できる。
[0018] Therefore, the fins 2 in the front-rear direction of the core
Even when changing the number of fins 2 interposed between each flat tube 1 according to the interval (fin pitch), there is no need to change the louver pitch. Therefore, the same roller can be used regardless of the fin pitch, so it is possible to suppress an increase in cost due to improved performance of the refrigerant condenser.

【0019】なお、ルーバ3の形状は、必ずしもフィン
2の短辺方向に沿って形成する必要はなく、斜めに形成
したり、くの字状に形成したり、適宜変更しても良い。
Note that the shape of the louver 3 does not necessarily have to be formed along the short side direction of the fin 2, and may be formed diagonally or in a dogleg shape, or may be changed as appropriate.

【図面の簡単な説明】[Brief explanation of the drawing]

【図1】偏平チューブとフィンとの関係を示す斜視図で
ある。
FIG. 1 is a perspective view showing the relationship between a flat tube and fins.

【図2】フィンの斜視図である。FIG. 2 is a perspective view of a fin.

【符号の説明】[Explanation of symbols]

1  偏平チューブ 2  放熱用フィン 3  ルーバ 1 Flat tube 2 Heat dissipation fins 3 Louva

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】流体通路を成す偏平チューブと放熱用のフ
ィンとが交互に積層されたコア形状を呈する熱交換器に
おいて、前記フィンは、表面に多数のルーバが形成され
た板状を呈し、前記コアの積層方向に直立した状態で前
記偏平チューブの流路方向に延びて配設され、このフィ
ンが、前記コアの前後方向に所定の間隔を隔てて並列に
複数設けられたことを特徴とする熱交換器。
1. A heat exchanger having a core shape in which flat tubes forming fluid passages and fins for heat dissipation are alternately laminated, wherein the fins have a plate shape with a large number of louvers formed on the surface, The fins are disposed upright in the stacking direction of the core and extend in the flow path direction of the flat tube, and a plurality of fins are provided in parallel at predetermined intervals in the front-rear direction of the core. heat exchanger.
JP3277791A 1991-02-27 1991-02-27 Heat exchanger Pending JPH04273992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3277791A JPH04273992A (en) 1991-02-27 1991-02-27 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3277791A JPH04273992A (en) 1991-02-27 1991-02-27 Heat exchanger

Publications (1)

Publication Number Publication Date
JPH04273992A true JPH04273992A (en) 1992-09-30

Family

ID=12368278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3277791A Pending JPH04273992A (en) 1991-02-27 1991-02-27 Heat exchanger

Country Status (1)

Country Link
JP (1) JPH04273992A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007322950A (en) * 2006-06-05 2007-12-13 Casio Comput Co Ltd Electric apparatus equipped with exhaust gas temperature reduction device
JP2010118497A (en) * 2008-11-13 2010-05-27 Furukawa-Sky Aluminum Corp Heat exchanger equipped with fin with louvers
CN110595250A (en) * 2018-12-29 2019-12-20 杭州三花微通道换热器有限公司 Heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007322950A (en) * 2006-06-05 2007-12-13 Casio Comput Co Ltd Electric apparatus equipped with exhaust gas temperature reduction device
JP2010118497A (en) * 2008-11-13 2010-05-27 Furukawa-Sky Aluminum Corp Heat exchanger equipped with fin with louvers
CN110595250A (en) * 2018-12-29 2019-12-20 杭州三花微通道换热器有限公司 Heat exchanger
CN111380394A (en) * 2018-12-29 2020-07-07 杭州三花微通道换热器有限公司 Heat exchanger
US20220074679A1 (en) * 2018-12-29 2022-03-10 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Heat exchanger

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