JPH11230691A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPH11230691A JPH11230691A JP3286498A JP3286498A JPH11230691A JP H11230691 A JPH11230691 A JP H11230691A JP 3286498 A JP3286498 A JP 3286498A JP 3286498 A JP3286498 A JP 3286498A JP H11230691 A JPH11230691 A JP H11230691A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- transfer tube
- tube
- fins
- straight
- 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.)
- Granted
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
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- 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
- F28D1/0477—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 being bent in a serpentine or zig-zag
- F28D1/0478—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 being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
-
- 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
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
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】本発明は、工作機械や農業機
械等におけるオイルクーラ等として用いられる熱交換器
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used as an oil cooler in a machine tool, an agricultural machine or the like.
【０００２】[0002]
【従来の技術】従来、所謂カチ込み式の熱交換器では、
図１０に示すように、横断面円形の伝熱管(51)を蛇行状
に曲げ加工した後、その直管部(51a) を偏平状に加工
し、該伝熱管(51)を、図１１および図１２(a)に示すよ
うに、所要間隔をあけて並列に配置された多数の帯板状
フィン(52)における各切欠(53)の入口(53a) に偏平状伝
熱管(51)の直管部(51a) を入れ、図１２(b) に示すよう
に、偏平状伝熱管(51)の直管部(51a) を各切欠(53)にお
ける欠円形の伝熱管固定部(53b) に入れると共にプレス
機(54)で直管部(51a) を加圧して該直管部(51a) を伝熱
管固定部(53b) に沿って上部が平らな略円形に変形させ
て該伝熱管固定部(53b) に固定していた。2. Description of the Related Art Conventionally, in a so-called tang-type heat exchanger,
As shown in FIG. 10, a heat transfer tube (51) having a circular cross section is bent in a meandering shape, and then a straight tube portion (51a) is formed into a flat shape. As shown in FIG. 12 (a), the flat heat transfer tube (51) is inserted directly into the inlet (53a) of each notch (53) in a number of strip fins (52) arranged in parallel at a required interval. The tube portion (51a) is inserted, and as shown in FIG. 12 (b), the straight tube portion (51a) of the flat heat transfer tube (51) is inserted into the notched heat transfer tube fixing portion (53b) of each notch (53). At the same time, the straight pipe part (51a) is pressurized by the press machine (54) to deform the straight pipe part (51a) along the heat transfer tube fixing part (53b) into a substantially circular shape with a flat top and fix the heat transfer tube. (53b).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の熱交換器では、伝熱管(51)の曲げ加工を行う
際、該伝熱管(51)の曲管部(51b) がつぶれ易く、またこ
れを防止するためには予め伝熱管(51)に心金を入れる必
要があった。また、熱交換器の性能向上を図る場合、伝
熱管(51)自体を長くして曲げ加工箇所を増やして直管部
(51a) の数を増加させる等の方法が考えられるが、この
場合、基本的に通過空気の圧力損失および伝熱管(51)内
を流れるオイル等の熱媒体の圧力損失が増加するため妥
当ではない。However, in the above-described conventional heat exchanger, when the heat transfer tube (51) is bent, the curved tube portion (51b) of the heat transfer tube (51) is easily broken. In order to prevent this, it was necessary to put a mandrel in the heat transfer tube (51) in advance. To improve the performance of the heat exchanger, make the heat transfer tube (51)
(51a) may be increased, but in this case, it is not appropriate because the pressure loss of the passing air and the pressure loss of the heat medium such as oil flowing in the heat transfer tube (51) basically increase. Absent.
【０００４】本発明の目的は、伝熱管を曲げ加工する際
の曲げ箇所において、心金等を使わずに該箇所のつぶれ
を確実に防止することができ、しかも通過空気の圧力損
失を増加させることなく、熱交換性能を高めることがで
きるオイルクーラ等の熱交換器を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to reliably prevent crushing of a bent portion of a heat transfer tube at the bending portion without using a mandrel or the like, and to increase the pressure loss of passing air. An object of the present invention is to provide a heat exchanger such as an oil cooler that can enhance heat exchange performance without using the heat exchanger.
【０００５】[0005]
【課題を解決するための手段】本発明に係る熱交換器
は、多数の板状フィンが並列に設けられ、各板状フィン
の少なくとも一側に、横断面偏平状の伝熱管がその幅方
向に入れられる真直ぐな入口とこれに連なり且つ短径が
入口の幅よりも広い欠楕円形の伝熱管固定部とよりなる
複数の切欠が間隔をあけて且つ隣り合う板状フィンの切
欠位置が互いに対応するように設けられ、これら対応す
る各切欠の伝熱管固定部に蛇行状に曲げ加工された伝熱
管の直管部が入れられ、直管部は入口方向からの押圧に
より伝熱管固定部に沿って楕円状に変形して伝熱管固定
部に固定されており、伝熱管内にはその内周方向に間隔
をあけて複数のインナーフィンが設けられ、且つこれら
インナーフィンのうち、各曲管部の両側管壁の中央にお
けるインナーフィン同士が対向状または曲管部曲げ加工
時における内側管壁の管内方への湾曲に伴って突き合わ
せ状となされているものである。According to the heat exchanger of the present invention, a large number of plate-like fins are provided in parallel, and at least one side of each plate-like fin is provided with a heat transfer tube having a flat cross section in its width direction. A plurality of cutouts comprising a straight inlet and a heat transfer tube fixing portion connected to the straight inlet and having a shorter elliptical shape and a shorter diameter than the width of the inlet are spaced apart from each other. Correspondingly provided, the straight tube portion of the heat transfer tube bent in a meandering shape is put in the heat transfer tube fixing portion of each corresponding notch, and the straight tube portion is inserted into the heat transfer tube fixing portion by pressing from the inlet direction. The heat transfer tube is fixed to the heat transfer tube fixing portion by being deformed into an elliptical shape along with a plurality of inner fins provided at intervals in the inner circumferential direction in the heat transfer tube. Inner fin in the center of the tube wall on both sides of the head Judges are those that have been made with the opposing shaped or curved pipe portion bent shape butt with the curvature of the tube side of the inner tube wall at the time of processing.
【０００６】本発明の熱交換器は、オイルクーラの他、
エバポレータ等として用いることができる。[0006] The heat exchanger of the present invention, in addition to the oil cooler,
It can be used as an evaporator or the like.
【０００７】本発明の熱交換器によれば、伝熱管の各曲
管部の両側管壁の中央におけるインナーフィン同士が曲
管部曲げ加工時における内側管壁の管内方への湾曲に伴
って突き合わせ状となされているため、これら突き合わ
されたインナーフィンによって曲管部の両側管壁がその
内側から支持された状態となるため、伝熱管の曲げ加工
時における曲げ箇所のつぶれが確実に防止できる。ま
た、蛇行状に曲げ加工された伝熱管の直管部は板状フィ
ンにおける各切欠の固定部に横断面だ円状に変形した状
態で固定されているため、該直管部は従来の横断面略円
形の直管部の場合に比較して通過空気の圧力損失が減少
されると共に楕円状の直管部内を流れるオイル等の熱媒
体と該直管部の内周との接触面積が拡大するため、伝熱
管自体の熱交換性能が向上する。According to the heat exchanger of the present invention, the inner fins at the center of both side walls of each curved tube portion of the heat transfer tube are bent inward of the inner tube wall at the time of bending the curved tube portion. Since the abutting shape is used, the abutting inner fins support both side walls of the curved tube portion from the inside thereof, so that it is possible to reliably prevent the bending of the bent portion during the bending of the heat transfer tube. . In addition, since the straight tube portion of the heat transfer tube bent in a meandering shape is fixed to the fixing portion of each notch in the plate-like fin in a state in which the cross section is an elliptical shape, the straight tube portion is a conventional cross section. The pressure loss of the passing air is reduced and the contact area between the heat medium such as oil flowing in the elliptical straight pipe and the inner circumference of the straight pipe is increased as compared with the case of the straight pipe having a substantially circular surface. Therefore, the heat exchange performance of the heat transfer tube itself is improved.
【０００８】[0008]
【発明の実施の形態】次に、本発明をオイルクーラに適
用した場合の実施形態について図面を参照しつつ説明す
る。Next, an embodiment in which the present invention is applied to an oil cooler will be described with reference to the drawings.
【０００９】図１に示すオイルクーラは、純アルミニウ
ムまたはアルミニウム合金製であって、多数の帯板状フ
ィン(1) が並列に設けられ、図２に示すように、帯板状
フィン(1) の切欠(2) には蛇行状の伝熱管(3) の直管部
(3a)が後述する要領でカチ込まれており、伝熱管(3) の
一端部(3c)はオイルの入口となされ、他端部(3d)が出口
となされており、また両側の帯板状フィン(1) の外側に
はそれぞれ側板(6) が設けられている。The oil cooler shown in FIG. 1 is made of pure aluminum or an aluminum alloy, and is provided with a plurality of strip fins (1) in parallel. As shown in FIG. The notch (2) has a straight pipe part of the meandering heat transfer tube (3).
(3a) is caught in the manner described below, one end (3c) of the heat transfer tube (3) serves as an oil inlet, and the other end (3d) serves as an outlet. Side plates (6) are provided outside the fins (1).
【００１０】伝熱管(3) は、図３に示すように、横断面
偏平状の押出形材よりなり、その両側管壁(5a)(5b)に
は、中央に厚みのあるインナーフィン(4a)が形成され、
インナーフィン(4a)の両側にそれぞれ該フィン(4a)より
も薄肉で且つ高さの若干低いインナーフィン(4b)が２つ
ずつ形成されている。そして、図５に示すように、伝熱
管(3) を所定箇所で曲げ加工することにより、蛇行状と
なされている。As shown in FIG. 3, the heat transfer tube (3) is formed of an extruded profile having a flat cross section, and has a thick inner fin (4a) at the center on both side tube walls (5a) and (5b). ) Is formed,
On each side of the inner fin (4a), two inner fins (4b) each having a smaller thickness and a slightly lower height than the fin (4a) are formed. Then, as shown in FIG. 5, the heat transfer tube (3) is bent at a predetermined position to form a meandering shape.
【００１１】切欠(2) は、各板状フィン(1) の一側に間
隔をあけて且つ隣り合う板状フィン(1) の切欠(2) 位置
が互いに対応するように設けられ、横断面偏平状の伝熱
管(3) がその幅方向に入れられる真直ぐな入口(2a)とこ
れに連なり且つ短径(r)が入口(2a)の幅(w)よりも広い欠
楕円形の伝熱管固定部(2b)とよりなるものである。The cutouts (2) are provided on one side of each plate-like fin (1) at intervals and such that the positions of the cutouts (2) of the adjacent plate-like fins (1) correspond to each other, and A straight inlet (2a) into which a flat heat transfer tube (3) is inserted in its width direction, and an oval heat transfer tube connected to the straight inlet (2a) and having a shorter diameter (r) wider than the width (w) of the inlet (2a). It consists of a fixed part (2b).
【００１２】そして、図４に示すように、上記対応する
各切欠(2) の伝熱管固定部(2b)に蛇行状に曲げ加工され
た伝熱管(3) の直管部(3a)が入れられ、該直管部(3a)は
プレス機(P) による入口(2a)方向からの押圧により伝熱
管固定部(2b)に沿って楕円状に変形して該伝熱管固定部
(2b)に固定されている。Then, as shown in FIG. 4, the straight tube portion (3a) of the heat transfer tube (3) bent in a meandering shape is inserted into the heat transfer tube fixing portion (2b) of each corresponding notch (2). The straight pipe portion (3a) is deformed into an elliptical shape along the heat transfer tube fixing portion (2b) by the pressing from the inlet (2a) direction by the press machine (P), and the heat transfer tube fixing portion is deformed.
(2b) is fixed.
【００１３】図５に示す伝熱管(3) の曲げ加工の際、図
６に示すように、各曲管部(3b)の内側管壁(5a)が管内方
へ湾曲することがあっても両側管壁(5a)(5b)の中央にお
けるインナーフィン(4a)同士が突き合わされて両側管壁
(5a)(5b)が内側から支持されるため、伝熱管(3) の曲管
部(3b)において該部がつぶれるおそれが全くない。ま
た、上記曲げ加工時において、曲げ半径が大きい等の理
由により各曲管部(3b)の内側管壁(5a)が管内方へ湾曲し
ない場合にはインナーフィン(4a)同士が突き合わされ
ず、図３のように、インナーフィン(4a)が対向状のまま
になることは勿論である。When the heat transfer tube (3) shown in FIG. 5 is bent, as shown in FIG. 6, even if the inner tube wall (5a) of each curved tube portion (3b) may be curved inward. The inner fins (4a) at the center of both side walls (5a) and (5b) abut each other,
Since (5a) and (5b) are supported from the inside, there is no possibility that the bent portion (3b) of the heat transfer tube (3) will be crushed. Also, at the time of the bending, if the inner pipe wall (5a) of each curved pipe portion (3b) does not curve inward due to a large bending radius or the like, the inner fins (4a) do not abut each other, Of course, as shown in FIG. 3, the inner fin (4a) remains facing.
【００１４】本実施形態のオイルクーラの場合、図８に
示すように、帯板状フィン(1) の各切欠(2) の伝熱管固
定部(2b)に固定された伝熱管(3) の各直管部(3a)が楕円
状であるため、図７に示す略円形の伝熱管(51)の直管部
(51a) に比べて通過空気の圧力損失が減少される。しか
も、楕円状の直管部(3a)内を流れるオイルと該直管部(3
a)の内周との接触面積が略円形の伝熱管(51)の直管部(5
1a) に比べて拡大するため、伝熱管自体の熱交換性能が
向上する。また、図８に示す楕円状の各直管部(3a)間の
間隔(S1)が図７に示す略円形の伝熱管(51)の間隔(S2)に
比べて広くなり、オイルクーラ全体としてみた場合の空
気の自由通過面積も図７のものに比べて大巾に増加す
る。In the case of the oil cooler of the present embodiment, as shown in FIG. 8, the heat transfer tube (3) fixed to the heat transfer tube fixing portion (2b) of each notch (2) of the strip fin (1). Since each straight pipe portion (3a) is elliptical, the straight pipe portion of the substantially circular heat transfer tube (51) shown in FIG.
The pressure loss of the passing air is reduced as compared with (51a). Moreover, the oil flowing in the oval straight pipe portion (3a) and the oil flowing through the straight pipe portion (3a)
The straight pipe section (5) of the heat transfer tube (51), whose contact area with the inner circumference of
The heat exchange performance of the heat transfer tube itself is improved because it is expanded compared to 1a). The interval (S1) between the oval straight pipe portions (3a) shown in FIG. 8 is wider than the interval (S2) between the substantially circular heat transfer tubes (51) shown in FIG. When viewed, the free passage area of the air greatly increases as compared with that of FIG.
【００１５】図９は上記実施形態を変形したものであ
り、切欠(2) が各帯板状フィン(1) の両側に設けられて
おり、各切欠(2) の構成およびこれら切欠(2) に固定さ
れる各伝熱管(3) の構成は上記実施形態と同様である。FIG. 9 is a modification of the above embodiment, in which notches (2) are provided on both sides of each band-shaped fin (1), and the structure of each notch (2) and these notches (2) The configuration of each of the heat transfer tubes (3) fixed to is the same as in the above embodiment.
【００１６】また、上記実施形態では、伝熱管(3) の曲
管部(3b)において両側管壁(5a)(5b)中央の対向する一対
のインナーフィン(4a)同士が突き合わされる構成とした
が、両側管壁(5a)(5b)中央において複数のインナーフィ
ン同士が突き合わされるようにしても良い。In the above embodiment, a pair of inner fins (4a) opposed to each other at the center of both pipe walls (5a) (5b) in the curved pipe section (3b) of the heat transfer pipe (3) are abutted. However, a plurality of inner fins may be abutted against each other at the center of the side wall (5a) (5b).
【００１７】[0017]
【発明の効果】本発明の熱交換器によれば、伝熱管の各
曲管部の両側管壁の中央におけるインナーフィン同士が
曲管部曲げ加工時における内側管壁の管内方への湾曲に
伴って突き合わせ状となされているため、これら突き合
わされたインナーフィンによって曲管部の両側管壁がそ
の内側から支持された状態となるため、伝熱管の曲げ加
工時における曲げ箇所のつぶれが確実に防止できる。According to the heat exchanger of the present invention, the inner fins at the center of the pipe walls on both sides of each curved pipe section of the heat transfer pipe are bent inwardly of the inner pipe wall during the curved pipe section bending process. Since the abutting shape is formed, the abutting inner fins support both side walls of the curved tube from the inside, so that the bent portion of the heat transfer tube during the bending process is surely crushed. Can be prevented.
【００１８】また、帯板状フィンの各切欠の伝熱管固定
部に固定された伝熱管の各直管部が楕円状であるため、
通過空気の圧力損失の低下が可能となり、しかも熱交換
器全体としての空気の自由通過面積も拡大するため、熱
交換器自体を大型化することなく、従来と同じ大きさの
熱交換器で伝熱管の直管部の本数を増やして熱交換性能
を容易に向上させることもできる。Further, since each straight tube portion of the heat transfer tube fixed to the heat transfer tube fixing portion of each notch of the band-shaped fin is elliptical,
Since the pressure loss of the passing air can be reduced and the free passage area of the air as the whole heat exchanger also increases, the heat exchanger of the same size as before can be transferred without increasing the size of the heat exchanger itself. The heat exchange performance can be easily improved by increasing the number of straight tubes of the heat tube.
【００１９】更に、本発明は、上記楕円状の各直管部に
おいて、管の内周と熱媒体との接触面積が拡大するた
め、伝熱管自体の熱交換性能が向上される等、種々の優
れた実用的利点を有するものである。Further, in the present invention, since the contact area between the inner circumference of the tube and the heat medium is increased in each of the elliptical straight tube portions, various heat exchange performances of the heat transfer tube itself are improved. It has excellent practical advantages.
【図１】本発明のオイルクーラの正面図である。FIG. 1 is a front view of an oil cooler according to the present invention.
【図２】同オイルクーラの側板を一部切欠して示す側面
図である。FIG. 2 is a side view showing the oil cooler with a side plate partially cut away.
【図３】伝熱管用の押出形材を示す斜視図である。FIG. 3 is a perspective view showing an extruded profile for a heat transfer tube.
【図４】オイルクーラの帯板状フィンへの伝熱管の固定
状態を示す垂直断面図である。FIG. 4 is a vertical sectional view showing a state in which a heat transfer tube is fixed to a band-shaped fin of an oil cooler.
【図５】伝熱管の曲管部を示す正面図である。FIG. 5 is a front view showing a curved tube portion of the heat transfer tube.
【図６】図５におけるＶＩ−ＶＩ線にそう断面図であ
る。FIG. 6 is a sectional view taken along line VI-VI in FIG. 5;
【図７】従来のオイルクーラの帯板状フィンにおける伝
熱管の固定状態を示す垂直断面図である。FIG. 7 is a vertical sectional view showing a fixed state of a heat transfer tube in a band-shaped fin of a conventional oil cooler.
【図８】本発明のオイルクーラの帯板状フィンにおける
伝熱管の固定状態を示す垂直断面図である。FIG. 8 is a vertical cross-sectional view showing a fixed state of a heat transfer tube in a strip fin of the oil cooler of the present invention.
【図９】他の実施形態を示す垂直断面図である。FIG. 9 is a vertical sectional view showing another embodiment.
【図１０】従来の熱交換器に用いられる蛇行状伝熱管の
斜視図である。FIG. 10 is a perspective view of a meandering heat transfer tube used in a conventional heat exchanger.
【図１１】同伝熱管の帯板状フィンへの配置を示す斜視
図である。FIG. 11 is a perspective view showing the arrangement of the heat transfer tubes on the strip fins.
【図１２】同伝熱管が帯板状フィンの切欠へ固定される
要領を示す垂直断面図であって、同図（ａ）は帯板状フ
ィンの切欠の入口に偏平状伝熱管が入った状態を示し、
同図（ｂ）は伝熱管が切欠の固定部で略円形に変形して
固定された状態を示している。FIG. 12 is a vertical cross-sectional view showing a manner in which the heat transfer tube is fixed to a notch of the band-shaped fin, and FIG. 12A shows a flat heat transfer tube inserted into an inlet of the notch of the band-shaped fin. State,
FIG. 2B shows a state in which the heat transfer tube is deformed into a substantially circular shape at the fixing portion of the notch and fixed.
(1) ： 板状フィン (2) ： 切欠 (2a)： 入口 (2b)： 伝熱管固定部 (3) ： 伝熱管 (3a)： 直管部 (3b)： 曲管部 (4a)： 管壁中央部のインナーフィン (4b)： 管壁両側部のインナーフィン (5a)： 内側管壁 (5b)： 外側管壁 (1): Plate fin (2): Notch (2a): Inlet (2b): Heat transfer tube fixing part (3): Heat transfer tube (3a): Straight tube (3b): Curved tube (4a): Tube Inner fin in the center of the wall (4b): Inner fin on both sides of the tube wall (5a): Inner tube wall (5b): Outer tube wall
Claims (1)
れ、各板状フィン(1)の少なくとも一側に、横断面偏平
状の伝熱管(3) がその幅方向に入れられる真直ぐな入口
(2a)とこれに連なり且つ短径が入口(2a)の幅よりも広い
欠楕円形の伝熱管固定部(2b)とよりなる複数の切欠(2)
が間隔をあけて且つ隣り合う板状フィン(1) の切欠(2)
位置が互いに対応するように設けられ、これら対応する
各切欠(2) の伝熱管固定部(2b)に蛇行状に曲げ加工され
た伝熱管(3) の直管部(3a)が入れられ、直管部(3a)は入
口(2a)方向からの押圧により伝熱管固定部(2b)に沿って
楕円状に変形して伝熱管固定部(2b)に固定されており、
伝熱管(3) 内にはその内周方向に間隔をあけて複数のイ
ンナーフィン(4a)(4b)が設けられ、且つこれらインナー
フィン(4a)(4b)のうち、各曲管部(3b)の両側管壁(5a)(5
b)の中央におけるインナーフィン(4a)同士が対向状また
は曲管部(3b)曲げ加工時における内側管壁(5a)の管内方
への湾曲に伴って突き合わせ状となされている、熱交換
器。A plurality of plate-like fins (1) are provided in parallel, and at least one side of each plate-like fin (1) is provided with a heat transfer tube (3) having a flat cross section in a straight direction in a width direction thereof. Entrance
(2a) and a plurality of cutouts (2) comprising a heat transfer tube fixing part (2b) connected to this and having a minor axis wider than the width of the inlet (2a).
Notches (2) at adjacent and spaced apart plate-like fins (1)
Positions are provided so as to correspond to each other, and the straight tube portion (3a) of the heat transfer tube (3) bent in a meandering shape is inserted into the heat transfer tube fixing portion (2b) of each corresponding notch (2), The straight pipe portion (3a) is deformed into an elliptical shape along the heat transfer tube fixing portion (2b) by pressing from the inlet (2a) direction and is fixed to the heat transfer tube fixing portion (2b),
In the heat transfer tube (3), a plurality of inner fins (4a) and (4b) are provided at intervals in the inner circumferential direction, and among the inner fins (4a) and (4b), each curved portion (3b ) On both sides (5a) (5
A heat exchanger in which the inner fins (4a) at the center of (b) face each other or are abutted with the inward bending of the inner pipe wall (5a) at the time of bending the bent pipe portion (3b). .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03286498A JP3947833B2 (en) | 1998-02-16 | 1998-02-16 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03286498A JP3947833B2 (en) | 1998-02-16 | 1998-02-16 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11230691A true JPH11230691A (en) | 1999-08-27 |
| JP3947833B2 JP3947833B2 (en) | 2007-07-25 |
Family
ID=12370730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03286498A Expired - Fee Related JP3947833B2 (en) | 1998-02-16 | 1998-02-16 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3947833B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1174673A2 (en) * | 2000-07-18 | 2002-01-23 | Valeo Thermique Moteur | Heat exchange module, more particularly for automotive vehicle, and process for manufacturing same |
| JP2008016718A (en) * | 2006-07-07 | 2008-01-24 | Denso Corp | Stacked cooler |
| JP2010078233A (en) * | 2008-09-26 | 2010-04-08 | Regal Joint Co Ltd | Shell-and-tube exchanger |
| CN102039441A (en) * | 2010-12-28 | 2011-05-04 | 宁波君灵模具技术有限公司 | Auxiliary cooling device for machining |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6502904B2 (en) * | 2015-09-04 | 2019-04-17 | ダイキン工業株式会社 | Heat exchanger |
-
1998
- 1998-02-16 JP JP03286498A patent/JP3947833B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1174673A2 (en) * | 2000-07-18 | 2002-01-23 | Valeo Thermique Moteur | Heat exchange module, more particularly for automotive vehicle, and process for manufacturing same |
| EP1174673A3 (en) * | 2000-07-18 | 2002-07-31 | Valeo Thermique Moteur | Heat exchange module, more particularly for automotive vehicle, and process for manufacturing same |
| JP2008016718A (en) * | 2006-07-07 | 2008-01-24 | Denso Corp | Stacked cooler |
| JP4682938B2 (en) * | 2006-07-07 | 2011-05-11 | 株式会社デンソー | Stacked cooler |
| JP2010078233A (en) * | 2008-09-26 | 2010-04-08 | Regal Joint Co Ltd | Shell-and-tube exchanger |
| CN102039441A (en) * | 2010-12-28 | 2011-05-04 | 宁波君灵模具技术有限公司 | Auxiliary cooling device for machining |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3947833B2 (en) | 2007-07-25 |
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