JPH10306992A - Heat-exchanger - Google Patents
Heat-exchangerInfo
- Publication number
- JPH10306992A JPH10306992A JP13431397A JP13431397A JPH10306992A JP H10306992 A JPH10306992 A JP H10306992A JP 13431397 A JP13431397 A JP 13431397A JP 13431397 A JP13431397 A JP 13431397A JP H10306992 A JPH10306992 A JP H10306992A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- fin
- heat
- heat exchange
- cut
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
-
- 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
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)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、熱交換器に関す
るもので、更に詳細には、断面偏平状の熱交換管と、こ
の熱交換管を交差状に貫挿する板状フィンとを具備する
熱交換器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, and more particularly, to a heat exchanger comprising a heat exchange tube having a flat cross section and plate-like fins which penetrate the heat exchange tube in an intersecting manner. It relates to a heat exchanger.
【０００２】[0002]
【従来の技術】一般に、この種の熱交換器は、図１０及
び図１１に示すように、対峙する一対のアルミニウム合
金製ヘッダーパイプ１，２と、これらヘッダーパイプ
１，２間に互いに平行に連結する複数のアルミニウム合
金製の断面偏平状の熱交換管３と、これら熱交換管３と
直交する方向に互いに平行に配設される複数のアルミニ
ウム合金製板状フィン４とをろう付したアルミニウム合
金製熱交換器が広く使用されている。この場合、上記熱
交換管３は複数の区画壁３ａによって区画された複数の
連通路３ｂを有するアルミニウム合金製押出形材にて形
成され、また、熱交換管３と板状フィン４との密着性を
良好にするために、板状フィン４に設けられた熱交換管
挿入用の長孔４ａの長辺側の対向する縁に沿って切起し
片４ｂが設けられて、この切起し片４ｂと熱交換管３の
外面とが例えばろう付によって接合されている。2. Description of the Related Art Generally, as shown in FIGS. 10 and 11, a heat exchanger of this type has a pair of opposed aluminum alloy header pipes 1 and 2 and a pair of header pipes 1 and 2 arranged in parallel with each other. Aluminum brazed with a plurality of heat exchange tubes 3 made of aluminum alloy and having a flat cross section and a plurality of plate fins 4 made of aluminum alloy arranged in parallel with each other in a direction perpendicular to the heat exchange tubes 3 to be connected. Alloy heat exchangers are widely used. In this case, the heat exchange tube 3 is formed of an extruded aluminum alloy material having a plurality of communication passages 3b defined by a plurality of partition walls 3a. In order to improve the performance, a piece 4b is provided along the opposite edge on the long side of the long hole 4a for inserting a heat exchange tube provided in the plate-like fin 4, and the cut and raised portion is provided. The piece 4b and the outer surface of the heat exchange tube 3 are joined by, for example, brazing.
【０００３】このように構成される熱交換器は、例えば
一方のヘッダーパイプ１の上端部に熱媒体供給管５を連
結し、他方のヘッダーパイプ２の下端部に排出管６を連
結してなる。そして、熱媒体供給管５から熱交換管３内
を流通する熱媒体Ｒが上部側の熱交換管３から下部側の
熱交換管３内を流れる間にフィン４間を流通する空気と
接触して熱交換され、排出管６から排出される。[0003] The heat exchanger constructed as described above comprises, for example, a heat medium supply pipe 5 connected to an upper end of one header pipe 1 and a discharge pipe 6 connected to a lower end of the other header pipe 2. . Then, while the heat medium R flowing from the heat medium supply pipe 5 to the inside of the heat exchange pipe 3 flows from the upper heat exchange pipe 3 to the lower heat exchange pipe 3, the heat medium R comes into contact with the air flowing between the fins 4. Then, heat is exchanged and discharged from the discharge pipe 6.
【０００４】上記のように構成される熱交換器におい
て、更に熱交換効率を良好にするために、図１２に示す
ように、上記板状フィン４の熱交換管３間の部分すなわ
ち長孔４ａ間の部分に、谷部７ａと山部７ｂとからなる
折曲部７を加工（ワッフル加工）して、この折曲部７で
空気流の乱れ，温度境界層の低減を生じせしめて熱交換
効率の向上を図っている。また、更に熱交換効率の向上
を図るためには、熱交換管３間のピッチを小さくする方
がよいとされている。In the heat exchanger configured as described above, in order to further improve the heat exchange efficiency, as shown in FIG. 12, a portion between the heat exchange tubes 3 of the plate-like fins 4, that is, a long hole 4a. A bent portion 7 composed of a valley portion 7a and a peak portion 7b is processed (waffle processing) in a portion between the ridge portions 7a and the ridge portion 7b. Improving efficiency. Further, in order to further improve the heat exchange efficiency, it is said that it is better to reduce the pitch between the heat exchange tubes 3.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記折
曲部７の加工は熱交換管３間の狭い面積内で行わなけれ
ばならないため、極端な加工では谷部７ａ，山部７ｂの
稜線等が切断してしまう虞れがあるので、折曲部７の起
伏高さに制限があった。したがって、充分な効果が得ら
れる程の折曲部７を形成することができないのが現状で
ある。However, since the processing of the bent portion 7 must be performed within a narrow area between the heat exchange tubes 3, the ridge lines of the valleys 7a and the ridges 7b are formed in extreme processing. Since there is a risk of being cut, there is a limit on the undulation height of the bent portion 7. Therefore, at present, it is not possible to form the bent portion 7 to obtain a sufficient effect.
【０００６】この発明は上記事情に鑑みなされたもの
で、熱交換管間の小さいピッチ間の狭い面積内でも容易
に折曲部を形成して熱交換効率の向上を図れるようにし
た熱交換器を提供することを目的とするものである。The present invention has been made in view of the above circumstances, and a heat exchanger in which a bent portion is easily formed even in a narrow area between small pitches between heat exchange tubes to improve heat exchange efficiency. The purpose is to provide.
【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、この発明の第１の熱交換器は、断面略偏平状の熱交
換管と、この熱交換管を交差状に貫挿する板状フィンと
を具備する熱交換器において、 上記板状フィンは、上
記熱交換管を貫挿する長孔状の貫通孔と、この貫通孔の
長辺側の対向縁に沿って起立する切起し片とを具備し、
上記切起し片の長手方向に分割部を設け、 上記板状
フィンにおける上記切起し片の分割部に沿って折曲部を
設けた、ことを特徴とする（請求項１）。In order to achieve the above object, a first heat exchanger according to the present invention comprises a heat exchange tube having a substantially flat cross section and a plate through which the heat exchange tube is inserted. The plate-like fin is provided with a long hole-shaped through hole penetrating the heat exchange tube, and a cut-and-raised erect along a long edge of the through hole. With a piece,
A split portion is provided in a longitudinal direction of the cut-and-raised piece, and a bent portion is provided along the split portion of the cut-and-raised piece in the plate-like fin (claim 1).
【０００８】この発明の第２の熱交換器は、断面略偏平
状の熱交換管と、この熱交換管を交差状に貫挿する板状
フィンとを具備する熱交換器において、 上記板状フィ
ンは、上記熱交換管を貫挿する長孔状の貫通孔と、この
貫通孔の長辺側の対向縁に沿って起立する切起し片とを
具備し、 上記切起し片の長手方向に分割部を設け、上
記板状フィンにおける上記切起し片の分割部及び切起し
片のない部分に折曲部を設けた、ことを特徴とする（請
求項２）。According to a second aspect of the present invention, there is provided a heat exchanger including a heat exchange tube having a substantially flat cross section and plate-like fins penetrating the heat exchange tube in an intersecting manner. The fin includes a long hole-shaped through hole that penetrates the heat exchange tube, and a cut-and-raised piece that rises along an opposing edge on a long side of the through-hole. A dividing portion is provided in a direction, and a bent portion is provided in a portion of the plate-like fin where the cut-and-raised piece does not have a cut-and-raised portion (Claim 2).
【０００９】この発明において、上記折曲部は、例えば
谷折れ線からなる谷部、あるいは山折れ線からなる山部
等にて形成することができる。In the present invention, the bent portion can be formed by, for example, a valley portion formed by a valley-fold line, a ridge portion formed by a mountain-fold line, or the like.
【００１０】また、この発明において、上記板状フィン
における貫通孔間に凹凸部を設ける方が好ましい（請求
項３）。また、上記板状フィンの折曲部の稜線上に凹部
を設ける方が好ましい（請求項４）。Further, in the present invention, it is preferable to provide an uneven portion between the through holes in the plate-like fin (claim 3). Further, it is preferable to provide a concave portion on the ridgeline of the bent portion of the plate-like fin (claim 4).
【００１１】請求項１記載の発明によれば、板状フィン
の貫通孔の縁部から起立される切起し片に分割部を設
け、この分割部に沿って折曲部を設けるので、折曲部を
容易に加工することができると共に、折曲部の起伏を大
きくすることができる。したがって、空気流の乱流化，
温度境界層の低減等を大きくして、熱交換効率の向上を
図ることができる。According to the first aspect of the present invention, the cut-and-raised piece standing from the edge of the through hole of the plate-like fin is provided with the divided portion, and the bent portion is provided along the divided portion. The bent portion can be easily processed, and the undulation of the bent portion can be increased. Therefore, turbulence of air flow,
The heat exchange efficiency can be improved by increasing the reduction of the temperature boundary layer and the like.
【００１２】請求項２記載の発明によれば、板状フィン
の貫通孔の縁部から起立される切起し片に分割部を設
け、この分割部及び切起し片のない部分に折曲部を設け
るので、折曲部の起伏を更に大きくすることができる。According to the second aspect of the present invention, the cut-and-raised piece erecting from the edge of the through hole of the plate-like fin is provided with a divided part, and the part without the divided part and the cut-and-raised piece is bent. Since the portion is provided, the undulation of the bent portion can be further increased.
【００１３】請求項３記載の発明によれば、板状フィン
における貫通孔間に折曲部の他に凹凸部を設けること
で、空気流の乱流化，温度境界層の低減等を更に大きく
することができる。According to the third aspect of the present invention, by providing unevenness in addition to the bent portion between the through holes in the plate-like fin, turbulence of the air flow, reduction of the temperature boundary layer, and the like are further enhanced. can do.
【００１４】請求項４記載の発明によれば、板状フィン
の折曲部の稜線上に凹部を設けることで、空気流の乱流
化，温度境界層の低減等を更に大きくすることができる
と共に、板状フィンの稜線と直交する方向の変形を抑制
することができる。According to the fourth aspect of the present invention, the provision of the concave portion on the ridge line of the bent portion of the plate-like fin can further increase the turbulence of the air flow, the reduction of the temperature boundary layer, and the like. At the same time, deformation of the plate-like fin in a direction orthogonal to the ridge line can be suppressed.
【００１５】[0015]
【発明の実施の形態】以下にこの発明の実施の形態を添
付図面に基づいて詳細に説明する。ここでは、熱交換器
の構造は、図１０に示したのと同じであるので、その説
明は省略する。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Here, the structure of the heat exchanger is the same as that shown in FIG. 10, and a description thereof will be omitted.
【００１６】◎第一実施形態 図１はこの発明の熱交換器の第一実施形態の要部である
熱交換管と板状フィンとの接合状態を示す斜視図であ
る。First Embodiment FIG. 1 is a perspective view showing a heat exchanger according to a first embodiment of the present invention, which is a main part of a heat exchanger tube and plate fins joined together.
【００１７】上記熱交換管３は、上述したように、複数
の仕切壁３ａによって区画される複数の連通路３ｂを有
するアルミニウム合金製の押出形材にて形成されてい
る。また、上記板状フィン８は、図２及び図３に示すよ
うに、熱交換管貫挿用の長孔状の貫通孔９と、この貫通
孔９の長辺側の対向する縁に沿って起立される切起し片
１０とを具備しており、かつ、切起し片１０の長手方向
の中央部にＶ字状の切欠からなる分割部１１が設けら
れ、この分割部１１及び切起し片１０のない部分例えば
貫通孔９の両端部近傍部位に互いに平行な谷部１２ａ
（図中、一点鎖線で示す谷折れ線）と山部１２ｂ（図
中、破線で示す山折れ線）とからなる折曲部１２が形成
されている。この場合、切起し片１０の分割部１１に沿
う部位に谷部１２ａが形成され、貫通孔９の両端近傍部
位に山部１２ｂが形成されているが、逆にしてもよい。
すなわち、分割部１１に沿う部分に山部を形成し、貫通
孔９の両端近傍部位に谷部を形成してもよい。As described above, the heat exchange tube 3 is formed of an extruded aluminum alloy having a plurality of communication passages 3b defined by a plurality of partition walls 3a. As shown in FIGS. 2 and 3, the plate-like fins 8 are formed along a long hole-shaped through hole 9 for penetrating a heat exchange tube, and along an edge facing the long side of the through hole 9. And a cut-and-raised piece 10 to be erected, and a V-shaped cutout 11 is provided at the center of the cut-and-raised piece 10 in the longitudinal direction. Valley portions 12a parallel to each other at portions without strips 10, for example, at portions near both ends of the through hole 9.
A bent portion 12 composed of (a broken line indicated by a dashed line in the drawing) and a peak portion 12b (a broken line indicated by a broken line in the drawing) is formed. In this case, a valley portion 12a is formed at a portion along the divided portion 11 of the cut and raised piece 10, and a ridge portion 12b is formed at a portion near both ends of the through hole 9, but may be reversed.
That is, a peak may be formed at a portion along the divided portion 11 and a valley may be formed near both ends of the through hole 9.
【００１８】上記のように構成される板状フィン８と熱
交換管３とを一体ろう付するには、まず、板状フィン８
に、熱交換管３の長手方向の長さより若干大きい寸法の
貫通孔９と、貫通孔９の長手方向の対向する縁に沿う切
起し片１０を設けると共に、切起し片１０の例えば略中
央部に例えばＶ字状の分割部１１を設ける。次に、切起
し片１０を一方の側に切り起こした後、分割部１１に沿
う部位に谷部１２ａ（又は山部）を有し、貫通孔９の両
端近傍部位に沿う方向に山部１２ｂ（又は谷部）を有す
る折曲部１２を形成する。そして、同様に折曲部１２を
形成した複数の板状フィン８を互いに列設して図示しな
い治具によって固定した状態で、貫通孔９内に熱交換管
３を貫挿して、熱交換管３と板状フィン８とを一体ろう
付する。この際、同時に熱交換管３とヘッダパイプ（図
示せず）も一体ろう付される。なお、ろう付に代えて接
着剤を用いて熱交換管３と板状フィン８、あるいは熱交
換管３と板状フィン８及びヘッダーパイプとを一体接合
してもよい。In order to braze the plate-like fin 8 and the heat exchange tube 3 integrally constructed as described above, first, the plate-like fin 8
In addition, a through hole 9 having a dimension slightly larger than the length of the heat exchange tube 3 in the longitudinal direction, and a cut-and-raised piece 10 along a longitudinally opposed edge of the through-hole 9 are provided. For example, a V-shaped divided portion 11 is provided at the center. Next, after the cut-and-raised piece 10 is cut and raised on one side, the cut-and-raised piece 10 has a valley portion 12a (or a ridge portion) at a portion along the dividing portion 11 and has a ridge portion in a direction along the portions near both ends of the through hole 9. A bent portion 12 having a valley 12b is formed. Then, the heat exchange tubes 3 are inserted into the through holes 9 in a state where the plurality of plate-like fins 8 similarly having the bent portions 12 are arranged side by side and fixed by a jig (not shown). 3 and the plate-like fin 8 are integrally brazed. At this time, the heat exchange tube 3 and the header pipe (not shown) are also brazed at the same time. Note that the heat exchange tube 3 and the plate-like fins 8 or the heat exchange tube 3 and the plate-like fins 8 and the header pipe may be integrally joined using an adhesive instead of brazing.
【００１９】上記のように構成される熱交換器によれ
ば、板状フィン８の貫通孔９の長手方向の縁部から起立
される切起し片１０に分割部１１を設け、この分割部１
１に沿う谷部１２ａ（又は山部）と貫通孔９の両端近傍
に沿う山部１２ｂ（又は谷部）とで折曲部１２を形成す
るので、板状フィン８の狭いピッチ間において折曲部１
２を容易に加工することができると共に、折曲部１２の
起伏を大きくすることができる。したがって、空気流の
乱流化，温度境界層の低減等を大きくして、熱交換効率
の向上を図ることができる。According to the heat exchanger configured as described above, the cut-and-raised piece 10 that is raised from the longitudinal edge of the through hole 9 of the plate-like fin 8 is provided with the divided portion 11. 1
1 and the ridges 12b (or valleys) along the vicinity of both ends of the through hole 9 to form the folds 12, so that the fins 8 are bent between narrow pitches. Part 1
2 can be easily processed, and the undulation of the bent portion 12 can be increased. Therefore, the turbulence of the air flow, the reduction of the temperature boundary layer, and the like are increased, and the heat exchange efficiency can be improved.
【００２０】◎第二実施形態 図４はこの発明の第二実施形態における板状フィンの要
部平面図、図５（ａ）は図４のＤ矢視図、図５（ｂ）は
第二実施形態における板状フィンを折曲した状態を示す
側面図である。Second Embodiment FIG. 4 is a plan view of a main part of a plate-like fin according to a second embodiment of the present invention, FIG. 5 (a) is a view taken in the direction of arrow D in FIG. 4, and FIG. It is a side view which shows the state which bent the plate-shaped fin in embodiment.
【００２１】第二実施形態は、切起し片１０に設けられ
る分割部１１Ａを、上記第一実施形態のＶ字状切欠に代
えて略Ｕ字状の切欠にて形成した場合である。すなわ
ち、上記のように略Ｕ字状の切欠によって形成された分
割部１１Ａに沿う谷部１２ａ（又は山部）と貫通孔９の
両端部近傍に沿う山部１２ｂ（又は谷部）とからなる折
曲部１２を設けて、上記第一実施形態と同様に貫通孔９
内に熱交換管３を貫挿し、熱交換管３と切起し片１０と
を一体ろう付して熱交換器を形成した場合である。な
お、第二実施形態において、その他の部分は上記第一実
施形態と同じであるので、同一部分には同一符号を付し
て、その説明は省略する。In the second embodiment, the divided portion 11A provided on the cut-and-raised piece 10 is formed by a substantially U-shaped notch instead of the V-shaped notch of the first embodiment. That is, the valleys 12a (or valleys) are formed along the divisions 11A formed by the substantially U-shaped notches as described above, and the valleys 12b (or valleys) are formed along the vicinity of both ends of the through hole 9. The bent portion 12 is provided, and the through-hole 9
In this case, a heat exchanger is formed by inserting the heat exchange tube 3 therein and brazing the heat exchange tube 3 and the cut-and-raised piece 10 together. In the second embodiment, other parts are the same as those in the first embodiment, and thus the same parts are denoted by the same reference numerals and description thereof will be omitted.
【００２２】◎第三実施形態 図６はこの発明の第三実施形態における板状フィンの要
部を示す平面図、図７は図６のＥ−Ｅ線に沿う拡大断面
図である。Third Embodiment FIG. 6 is a plan view showing a main part of a plate-like fin according to a third embodiment of the present invention, and FIG. 7 is an enlarged sectional view taken along line EE in FIG.
【００２３】第三実施形態は、空気流の乱流化及び温度
境界層の低減等を更に大きくして熱交換効率の向上を図
れるようにした場合である。すなわち、上記折曲部１２
を設ける他に、図６及び図７に示すように、板状フィン
８の貫通孔９間の部分に例えば複数の円形状凹部１３ａ
を千鳥状に配列した凹凸部例えば凹凸模様１３を施すこ
とにより、板状フィン８間を通る空気流の乱流化及び温
度境界層の低下等を更に大きくさせて、熱交換効率の向
上を図れるようにした場合である。なおこの場合、凹凸
模様１３は必ずしも円形状凹部１３ａである必要はな
く、例えば三角形、四角形、五角形等の多角形等任意の
形状のものランダム状に配列するか、異なる形状の凹部
を適宜組み合わせてもよい。In the third embodiment, the turbulence of the air flow and the reduction of the temperature boundary layer are further increased to improve the heat exchange efficiency. That is, the bent portion 12
6 and 7, for example, a plurality of circular recesses 13a are formed in the portions between the through holes 9 of the plate-like fins 8 as shown in FIGS.
Are formed in a zigzag pattern, for example, the uneven pattern 13 is provided, thereby further increasing the turbulence of the air flow passing between the plate-like fins 8 and reducing the temperature boundary layer, thereby improving the heat exchange efficiency. This is the case. In this case, the concavo-convex pattern 13 does not necessarily have to be the circular concave portion 13a. For example, a triangle, a quadrangle, a polygon such as a pentagon, and the like are arranged in a random shape, or concave portions of different shapes are appropriately combined. Is also good.
【００２４】なお、第三実施形態において、その他の部
分は上記第一実施形態と同じであるので、同一部分には
同一符号を付して、その説明は省略する。In the third embodiment, the other parts are the same as those in the first embodiment, and therefore, the same parts are denoted by the same reference numerals and description thereof will be omitted.
【００２５】◎第四実施形態 図８はこの発明の第四実施形態における熱交換管と板状
フィンとの接合状態を示す要部斜視図、図９は第四実施
形態における板状フィンの要部平面図である。Fourth Embodiment FIG. 8 is a perspective view showing a main part of a heat exchange tube and a plate fin according to a fourth embodiment of the present invention, and FIG. 9 is a perspective view showing a plate fin according to the fourth embodiment. It is a partial plan view.
【００２６】第四実施形態は、熱交換効率の向上を図る
と共に、板状フィン８の強度を図れるようにした場合で
ある。すなわち、上記折曲部１２を構成する山部１２ｂ
の稜線１２ｃ上の適宜位置に凹部例えば矩形状の圧痕部
１４を設けることにより、板状フィン８に上記折曲部１
２の他に空気の接触面積の増大部を設けることができる
ので、空気流の乱流化，温度境界層の低減等を大きくし
て、熱交換効率の向上を図ることができる。また、折曲
部１２を構成する山部１２ｂの稜線１２ｃに圧痕部１４
を設けることにより、板状フィン８の稜線１２ｃと直交
する方向の力に対する変形を抑制することができ、熱交
換器の組立時に板状フィン８を固定する際の押圧力等に
よって板状フィン８が変形するのを防止することができ
る。The fourth embodiment is a case where the heat exchange efficiency is improved and the strength of the plate-like fins 8 can be increased. That is, the ridges 12b constituting the bent portions 12
By providing a concave portion, for example, a rectangular indentation portion 14 at an appropriate position on the ridge line 12c of the
In addition to the above, since a portion having an increased air contact area can be provided, the turbulence of the air flow, the reduction of the temperature boundary layer, and the like can be increased, and the heat exchange efficiency can be improved. Further, an indentation portion 14 is formed on a ridgeline 12c of a mountain portion 12b constituting the bent portion 12.
Is provided, it is possible to suppress deformation of the plate-shaped fin 8 against a force in a direction orthogonal to the ridgeline 12c, and the plate-shaped fin 8 is pressed by a pressing force when the plate-shaped fin 8 is fixed at the time of assembling the heat exchanger. Can be prevented from being deformed.
【００２７】なお、第四実施形態において、その他の部
分は上記第一実施形態と同じであるので、同一部分には
同一符号を付して、その説明は省略する。また、第四実
施形態において、上記第三実施形態と同様に板状フィン
８の貫通孔９間の折曲部１２以外の箇所に凹凸模様１３
を施してもよい。In the fourth embodiment, the other parts are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof will be omitted. Further, in the fourth embodiment, as in the third embodiment, the uneven pattern 13 is formed at a portion other than the bent portion 12 between the through holes 9 of the plate-like fin 8.
May be applied.
【００２８】◎その他の実施形態 上記実紙形態では、分割部１１が切起し片１０の中央部
に１個設けられる場合について説明したが、分割部１１
の位置は必ずしも切起し片１０の中央部である必要はな
く、任意の位置に設けてもよく、また、分割部１１を複
数個設けてもよい。また、折曲部１２の形態は、谷部１
２ａと山部１２ｂが互いに平行に設けられれば、その位
置は任意の位置でよい。Other Embodiments In the above-described actual paper form, the case where one dividing portion 11 is provided at the center of the cut and raised piece 10 has been described.
Is not always required to be at the center of the cut-and-raised piece 10, but may be provided at an arbitrary position, and a plurality of divided portions 11 may be provided. Further, the form of the bent portion 12 is as follows.
If the 2a and the peak 12b are provided in parallel with each other, the position may be an arbitrary position.
【００２９】[0029]
【発明の効果】以上に説明したように、この発明の熱交
換器によれば、上記のように構成されているので、以下
のような効果が得られる。As described above, according to the heat exchanger of the present invention, since it is configured as described above, the following effects can be obtained.
【００３０】１）請求項１記載の発明によれば、板状フ
ィンの貫通孔の縁部から起立される切起し片に分割部を
設け、この分割部に沿って折曲部を設けるので、折曲部
を容易に加工することができると共に、折曲部の起伏を
大きくすることができる。したがって、空気流の乱流
化，温度境界層の低減等を大きくして、熱交換効率の向
上を図ることができる。1) According to the first aspect of the present invention, the cut-and-raised piece erecting from the edge of the through hole of the plate-like fin is provided with the divided portion, and the bent portion is provided along the divided portion. In addition, the bent portion can be easily processed, and the undulation of the bent portion can be increased. Therefore, the turbulence of the air flow, the reduction of the temperature boundary layer, and the like are increased, and the heat exchange efficiency can be improved.
【００３１】２）請求項２記載の発明によれば、板状フ
ィンの貫通孔の縁部から起立される切起し片に分割部を
設け、この分割部及び切起し片のない部分に折曲部を設
けるので、上記１）に加えて折曲部の起伏を更に大きく
することができる。2) According to the second aspect of the present invention, a cut-and-raised piece that is raised from the edge of the through-hole of the plate-like fin is provided with a divided portion, and a portion without the divided portion and the cut-and-raised piece is provided. Since the bent portion is provided, the undulation of the bent portion can be further increased in addition to the above 1).
【００３２】３）請求項３記載の発明によれば、板状フ
ィンにおける貫通孔間に折曲部の他に凹凸部を設けるの
で、上記１），２）に加えて空気流の乱流化，温度境界
層の低減等を更に大きくすることができる。3) According to the third aspect of the present invention, in addition to the bent portions, the concave and convex portions are provided between the through holes of the plate-like fins. , And the temperature boundary layer can be further reduced.
【００３３】４）請求項４記載の発明によれば、板状フ
ィンの折曲部の稜線上に凹部を設けるので、上記１），
２）に加えて空気流の乱流化，温度境界層の低減等を更
に大きくすることができると共に、板状フィンの稜線と
直交する方向の変形を抑制することができる。4) According to the fourth aspect of the present invention, the concave portion is provided on the ridge line of the bent portion of the plate-like fin.
In addition to 2), turbulence of the air flow, reduction of the temperature boundary layer, and the like can be further increased, and deformation of the plate-like fin in a direction orthogonal to the ridge line can be suppressed.
【図１】この発明の第一実施形態における熱交換器の要
部を示す斜視図である。FIG. 1 is a perspective view showing a main part of a heat exchanger according to a first embodiment of the present invention.
【図２】第一実施形態における板状フィンの要部を示す
平面図である。FIG. 2 is a plan view illustrating a main part of a plate-like fin according to the first embodiment.
【図３】図２のＣ矢視図（ａ）及び板状フィンの折曲状
態を示す側面図（ｂ）である。FIGS. 3A and 3B are a side view and a side view showing a bent state of a plate-like fin, respectively; FIG.
【図４】この発明の第二実施形態における板状フィンの
要部を示す平面図である。FIG. 4 is a plan view showing a main part of a plate-like fin according to a second embodiment of the present invention.
【図５】図４のＤ矢視図（ａ）及び板状フィンの折曲状
態を示す側面図（ｂ）ある。5 (a) is a side view showing the bent state of the plate-like fin in FIG. 4 (a). FIG.
【図６】この発明の第三実施形態における板状フィンの
要部を示す平面図である。FIG. 6 is a plan view showing a main part of a plate-like fin according to a third embodiment of the present invention.
【図７】図６のＥ−Ｅ線に沿う拡大断面図である。FIG. 7 is an enlarged sectional view taken along line EE of FIG. 6;
【図８】この発明の第四実施形態における熱交換管と板
状フィンとの接合状態を示す要部斜視図である。FIG. 8 is a perspective view of a main part showing a joint state between a heat exchange tube and a plate-like fin according to a fourth embodiment of the present invention.
【図９】第四実施形態における板状フィンの要部を示す
平面図である。FIG. 9 is a plan view illustrating a main part of a plate-like fin according to a fourth embodiment.
【図１０】フィン型熱交換器の概略斜視図である。FIG. 10 is a schematic perspective view of a fin type heat exchanger.
【図１１】上記熱交換器の熱交換管と板状フィンとの接
合状態を示す要部斜視図である。FIG. 11 is a perspective view of a main part showing a joint state between a heat exchange tube and a plate-like fin of the heat exchanger.
【図１２】従来の熱交換器における板状フィンの要部を
示す平面図（ａ）、そのＡ矢視図（ｂ）及びＢ矢視図
（ｃ）である。FIG. 12 is a plan view (a) showing a main part of a plate-like fin in a conventional heat exchanger, and is a view (A) of FIG.
３ 熱交換管 ８ 板状フィン ９ 貫通孔 １０ 切起し片 １１，１１Ａ 分割部 １２ 折曲部 １２ａ 谷部 １２ｂ 山部 １２ｃ 稜線 １３ 凹凸模様（凹凸部） １４ 圧痕部（凹部） Reference Signs List 3 heat exchange tube 8 plate-like fin 9 through-hole 10 cut-and-raised piece 11, 11A divided part 12 bent part 12a valley part 12b crest part 12c ridge line 13 uneven pattern (irregular part) 14 indentation part (concave part)
Claims (4)
管を交差状に貫挿する板状フィンとを具備する熱交換器
において、 上記板状フィンは、上記熱交換管を貫挿する長孔状の貫
通孔と、この貫通孔の長辺側の対向縁に沿って起立する
切起し片とを具備し、 上記切起し片の長手方向に分割部を設け、 上記板状フィンにおける上記切起し片の分割部に沿って
折曲部を設けた、ことを特徴とする熱交換器。1. A heat exchanger comprising a heat exchange tube having a substantially flat cross section and a plate-like fin penetrating the heat exchange tube in an intersecting manner, wherein the plate-like fin extends through the heat exchange tube. A long hole-shaped through-hole to be inserted, and a cut-and-raised piece standing upright along a long edge of the through-hole, and a split portion provided in a longitudinal direction of the cut-and-raised piece; A heat exchanger, wherein a bent portion is provided along a divided portion of the cut-and-raised piece in the fin.
管を交差状に貫挿する板状フィンとを具備する熱交換器
において、 上記板状フィンは、上記熱交換管を貫挿する長孔状の貫
通孔と、この貫通孔の長辺側の対向縁に沿って起立する
切起し片とを具備し、 上記切起し片の長手方向に分割部を設け、 上記板状フィンにおける上記切起し片の分割部及び切起
し片のない部分に折曲部を設けた、ことを特徴とする熱
交換器。2. A heat exchanger comprising: a heat exchange tube having a substantially flat cross section; and plate-like fins passing through the heat exchange tube in an intersecting manner, wherein the plate-like fin extends through the heat exchange tube. A long hole-shaped through-hole to be inserted, and a cut-and-raised piece standing upright along a long edge of the through-hole, and a split portion provided in a longitudinal direction of the cut-and-raised piece; A heat exchanger characterized in that a bent portion is provided in a divided portion of the cut-and-raised piece and a portion without the cut-and-raised piece in the fin.
て、 上記板状フィンにおける貫通孔間に凹凸部を設けたこと
を特徴とする熱交換器。3. The heat exchanger according to claim 1, wherein an uneven portion is provided between the through holes of the plate-like fin.
て、 上記板状フィンの折曲部の稜線上に凹部を設けたことを
特徴とする熱交換器。4. The heat exchanger according to claim 1, wherein a concave portion is provided on a ridgeline of the bent portion of the plate-like fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13431397A JPH10306992A (en) | 1997-05-08 | 1997-05-08 | Heat-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13431397A JPH10306992A (en) | 1997-05-08 | 1997-05-08 | Heat-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10306992A true JPH10306992A (en) | 1998-11-17 |
Family
ID=15125388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13431397A Withdrawn JPH10306992A (en) | 1997-05-08 | 1997-05-08 | Heat-exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10306992A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005127595A (en) * | 2003-10-23 | 2005-05-19 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| JP2011064403A (en) * | 2009-09-17 | 2011-03-31 | Mitsubishi Electric Corp | Heat exchanger, fin for heat exchanger and its manufacturing method |
| JP2011220554A (en) * | 2010-04-05 | 2011-11-04 | Sumitomo Light Metal Ind Ltd | Heat-transfer tube for fin-and-tube type heat exchanger, fin-and-tube type heat exchanger using the heat-transfer tube, and manufacturing method for the fin-and-tube type heat exchanger |
| JP2012032121A (en) * | 2010-08-02 | 2012-02-16 | Mitsubishi Electric Corp | Heat exchanger, air conditioner with the same, and method of manufacturing the same |
| WO2014003865A1 (en) * | 2012-06-28 | 2014-01-03 | Cooper-Standard Automotive, Inc. | Heat exchanger |
| JP2014233725A (en) * | 2013-05-31 | 2014-12-15 | 三菱電機株式会社 | Method of manufacturing heat exchanger and heat exchanger |
-
1997
- 1997-05-08 JP JP13431397A patent/JPH10306992A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005127595A (en) * | 2003-10-23 | 2005-05-19 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| JP2011064403A (en) * | 2009-09-17 | 2011-03-31 | Mitsubishi Electric Corp | Heat exchanger, fin for heat exchanger and its manufacturing method |
| JP2011220554A (en) * | 2010-04-05 | 2011-11-04 | Sumitomo Light Metal Ind Ltd | Heat-transfer tube for fin-and-tube type heat exchanger, fin-and-tube type heat exchanger using the heat-transfer tube, and manufacturing method for the fin-and-tube type heat exchanger |
| JP2012032121A (en) * | 2010-08-02 | 2012-02-16 | Mitsubishi Electric Corp | Heat exchanger, air conditioner with the same, and method of manufacturing the same |
| WO2014003865A1 (en) * | 2012-06-28 | 2014-01-03 | Cooper-Standard Automotive, Inc. | Heat exchanger |
| JP2014233725A (en) * | 2013-05-31 | 2014-12-15 | 三菱電機株式会社 | Method of manufacturing heat exchanger and heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040803 |