JP2006097970A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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JP2006097970A
JP2006097970A JP2004284452A JP2004284452A JP2006097970A JP 2006097970 A JP2006097970 A JP 2006097970A JP 2004284452 A JP2004284452 A JP 2004284452A JP 2004284452 A JP2004284452 A JP 2004284452A JP 2006097970 A JP2006097970 A JP 2006097970A
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heat exchanger
corrugated plate
fluid
box
fluid passage
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JP4461989B2 (en
Inventor
Ken Yamamoto
山本　　憲
Norihide Kawachi
典秀 河地
Takeshi Okinoya
剛 沖ノ谷
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Denso Corp
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Denso Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0016—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being bent
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0041—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having parts touching each other or tubes assembled in panel form
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/04—Communication passages between channels

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger capable of attaining uniformity of flow distribution and lowering water flow resistance in separated flow by forming a corrugated plate for separating a fluid passage on one side. <P>SOLUTION: In the heat exchanger, two plates are joined at the peripheral edges to form a thin rectangular box body 20, and one fluid passage is formed reaching an outlet 24 from an inlet 23 opened at the peripheral edge, and a wall surface 32 of the corrugated plate 30 formed in corrugated shape is formed with openings 33 in the right and left side edge positions. The corrugated plate 30 is stored in the box body 20 while joining upper and lower folded faces to the plate, and small-diameter tubes of a plurality of lines are spirally wound around the box body 20 and jointed to both flat faces of the box body 20 to form the other fluid passage so that one fluid and the other fluid exchange heat. In the corrugated plate 30, one fluid passage is formed in a plurality of lines of at least two lines by forming the opening areas of the openings 33 to be different. Uniformity of flow distribution can thereby be attained, and water flow resistance can be lowered. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、２種類の流体の間で熱交換を行なう熱交換器に関するものであり、特に、冷媒を用いたヒートポンプ式給湯機に適用する熱交換器の構成に関する。   The present invention relates to a heat exchanger that performs heat exchange between two types of fluids, and more particularly, to a configuration of a heat exchanger that is applied to a heat pump water heater using a refrigerant.

従来、この種の熱交換器として、例えば、特許文献１に示すものが知られている。この特許文献１では、絞り成形した２枚のプレートにより周縁を接合して薄型矩形の箱体を形成して、その周縁に開口した入口から出口に至る一方の流体の通路を形成し、波型成形したコルゲート板の壁面に左右交互の側端位置に開口部を形成し、そのコルゲート板を、上下折り返し面を上記プレートに接合して箱体内に収容し、チューブ状の細管をその箱体に螺旋状に巻装し、その箱体の両平坦面に接合して他方の流体の通路を形成して構成している。   Conventionally, what is shown, for example in patent document 1 as this kind of heat exchanger is known. In this Patent Document 1, a thin rectangular box is formed by joining peripheral edges with two drawn and formed plates, and one fluid passage from an inlet opening to an outlet opening at the peripheral edge is formed. The corrugated plate is formed with openings at the left and right alternating side edge positions on the wall surface of the molded corrugated plate, and the corrugated plate is accommodated in the box with the upper and lower folded surfaces joined to the plate, and a tubular tubule is placed in the box. It is wound in a spiral shape and joined to both flat surfaces of the box to form the other fluid passage.

これにより、コルゲート板の壁面が箱体内を多数の折り返した流通路に区画し、流通路の全長が長く形成される。また、壁面が伝熱面として機能し、箱体の両平坦面に接合した細管内を流通するた他方の流体と熱交換が行なわれ、伝熱面積の増大により熱交換効率の向上が図れるとともに、熱交換器の小型化を図っている（例えば、特許文献１参照。）。
特開２００３−３１４９７５号公報 Accordingly, the wall surface of the corrugated plate divides the box into a number of folded flow passages, and the entire length of the flow passage is formed long. In addition, the wall surface functions as a heat transfer surface, heat exchange is performed with the other fluid flowing through the narrow tube joined to both flat surfaces of the box, and heat exchange efficiency can be improved by increasing the heat transfer area. The heat exchanger is miniaturized (for example, see Patent Document 1).
JP 2003-314975 A

しかしながら、上記特許文献１によれば、一方の流体の通路は入口から出口に至るまで一経路で形成していることで一方の流体がＵターン状に折り返す開口部の個数が多いので通水抵抗が大きい問題がある。   However, according to the above-mentioned Patent Document 1, since one fluid passage is formed in one path from the inlet to the outlet, the number of openings in which one fluid is folded back in a U-turn shape increases the resistance to water flow. There is a big problem.

そこで、本発明の目的は、上記点を鑑みたものであり、一方の流体の通路を分流するようにコルゲート板を形成することで、分流における流量配分の均等性および通水抵抗の低下が図れることを可能とする熱交換器を提供することにある。   Accordingly, an object of the present invention is to take the above-mentioned points into consideration, and by forming a corrugated plate so as to divert one of the fluid passages, it is possible to reduce the uniformity of flow distribution and the water flow resistance in the diversion. The object is to provide a heat exchanger that makes it possible.

上記、目的を達成するために、請求項１ないし請求項４に記載の技術的手段を採用する。すなわち、請求項１に記載の発明では、絞り成形した２枚のプレート（２１、２２）を、周縁を接合して薄型矩形の箱体（２０）を形成し、その周縁に開口した入口（２３）から出口（２４）に至る一方の流体の通路を形成し、波型成形したコルゲート板（３０）の壁面（３２）に、左右の側端位置に開口部（３３）を形成し、コルゲート板（３０）を、上下折り返し面をプレート（２１、２２）に接合して箱体（２０）内に収容し、一経路または複数経路からなる細管（１０）を箱体（２０）に螺旋状に巻装し、箱体（２０）の両平坦面に接合して他方の流体の通路を形成して、一方の流体と他方の流体とが熱交換する熱交換器において、
コルゲート板（３０）は、開口部（３３）の大きさを異なるように形成することで一方の流体の通路を少なくとも２経路以上の複数経路に形成したことを特徴としている。 In order to achieve the above object, the technical means described in claims 1 to 4 are employed. That is, in the first aspect of the present invention, two drawn plates (21, 22) are joined at the periphery to form a thin rectangular box (20), and an inlet (23 opened at the periphery) ) To the outlet (24), and the corrugated plate is formed with openings (33) at the left and right side end positions on the wall surface (32) of the corrugated corrugated plate (30). (30) is accommodated in the box (20) by joining the upper and lower folded surfaces to the plates (21, 22), and the narrow tube (10) consisting of one path or a plurality of paths is spirally formed in the box (20). In a heat exchanger that is wound and joined to both flat surfaces of the box (20) to form a passage for the other fluid, and heat exchange is performed between one fluid and the other fluid.
The corrugated plate (30) is characterized in that a passage of one fluid is formed in a plurality of paths of at least two paths by forming the openings (33) so as to have different sizes.

請求項１に記載の発明によれば、一方の流体の通路が、例えば、２経路の場合には、１経路のときに流通する開口部（３３）の個数を半減することができる。これにより、通水抵抗の低下が図れる。   According to the first aspect of the present invention, when the passage of one fluid is, for example, two paths, the number of openings (33) flowing through the one path can be halved. Thereby, reduction of water flow resistance can be aimed at.

請求項２に記載の発明では、開口部（３３）は、複数経路のうち、流れ難い経路側の開口面積を他の経路側よりも大きくなるように形成したことを特徴としている。請求項２に記載の発明によれば、複数経路に形成しても流れ難い経路側に流量が配分されて流量配分の均等性が図れる。   The invention according to claim 2 is characterized in that the opening (33) is formed such that the opening area on the path side that is difficult to flow out of the plurality of paths is larger than that on the other path side. According to the second aspect of the present invention, the flow rate is distributed to the path side that is difficult to flow even if it is formed in a plurality of paths, and the flow rate distribution can be made uniform.

請求項３に記載の発明では、コルゲート板（３０）は、折り返し面を平坦状のプレーン型に形成したことを特徴としている。請求項３に記載の発明によれば、プレーン型は細管（１０）との接合性および伝熱性が優れるので複数本の細管（１０）を密着並置して形成する他方の流体の通路を形成することができる。   The invention according to claim 3 is characterized in that the corrugated plate (30) has a folded surface formed in a flat plane shape. According to the third aspect of the present invention, since the plain type is excellent in the bonding property and heat transfer with the thin tube (10), the other fluid passage formed by closely juxtaposing the plural thin tubes (10) is formed. be able to.

請求項４に記載の発明では、一方の流体の通路に水が流通し、他方の流体の通路に冷媒が流通することを特徴としている。請求項４に記載の発明によれば、上記構成の熱交換器はヒートポンプ式給湯機に適用する熱交換器として好適である。つまり、他方の通路を高温高圧の冷媒の使用に耐えられる構造で形成できる。   The invention described in claim 4 is characterized in that water flows through one fluid passage and refrigerant flows through the other fluid passage. According to invention of Claim 4, the heat exchanger of the said structure is suitable as a heat exchanger applied to a heat pump type water heater. That is, the other passage can be formed with a structure that can withstand the use of a high-temperature and high-pressure refrigerant.

なお、上記各手段の括弧内の符号は、後述する実施形態の具体的手段との対応関係を示すものである。   In addition, the code | symbol in the bracket | parenthesis of each said means shows a corresponding relationship with the specific means of embodiment mentioned later.

（第１実施形態）
以下、本発明の第１実施形態による熱交換器を図１ないし図５に基づいて説明する。図１は冷媒を用いたヒートポンプ式給湯機に組み込む熱交換器に本発明を適用した一例であって、熱交換器の全体構成を示す平面図であり、図２は正面図である。 (First embodiment)
Hereinafter, a heat exchanger according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an example in which the present invention is applied to a heat exchanger incorporated in a heat pump type hot water heater using a refrigerant, and is a plan view showing the entire configuration of the heat exchanger, and FIG. 2 is a front view.

また、図３は図２に示すＡ−Ａ断面を示す断面図、図４は本発明の要部であるコルゲート板３０の構成を示す模式図であり、図５はそのコルゲート板３０の外観形状を示す分解斜視図である。   3 is a cross-sectional view showing the AA cross section shown in FIG. 2, FIG. 4 is a schematic view showing the configuration of the corrugated plate 30 as the main part of the present invention, and FIG. FIG.

まず、本実施形態の熱交換器は、図１に示すように、密着並置した２本の細管１０と、薄型矩形状に形成された箱体２０とからなり、細管１０内を流通する流体（例えば、冷媒）と箱体２０内を流通する流体（例えば、水）とを熱交換するように構成している。   First, as shown in FIG. 1, the heat exchanger according to the present embodiment includes two narrow tubes 10 that are in close contact with each other and a box 20 that is formed in a thin rectangular shape. For example, the refrigerant is configured to exchange heat with a fluid (for example, water) flowing through the box 20.

箱体２０は、図５に示すように、上下２枚のプレート（上プレート２１、下プレート２２）との間にコルゲート板３０を収容しており、その箱体２０の周縁に入口２３を開口し、対向辺に出口２４を開口して、入口２３から出口２４に至る通水路を形成している。上下２枚のプレート２１、２２は、銅板を浅底容器状に絞り成形したものであって、その周縁を重ね合わせて接合することで薄型矩形状の箱体２０が形成される。   As shown in FIG. 5, the box 20 accommodates a corrugated plate 30 between two upper and lower plates (upper plate 21 and lower plate 22), and opens an inlet 23 at the periphery of the box 20. The outlet 24 is opened on the opposite side to form a water passage from the inlet 23 to the outlet 24. The two upper and lower plates 21 and 22 are formed by drawing a copper plate into a shallow container shape, and a thin rectangular box 20 is formed by overlapping and joining the peripheral edges thereof.

また、コルゲート板３０は、銅板を波形状に成形したものであり、上下折り返し面（山面、谷面）を平坦状とし、断面を連続する矩形波としたプレーン型に形成され、その外形（縦×横×高さ）が箱体３０の内寸に適合している。そして、コルゲート板３０の壁面３２には窓状の開口部３３が左右の側端位置に形成され、図２ないし図４に示すように、通水方向に対して壁面３２が直交する状態で箱体３０内に収納され、かつ上下折り返し面を（山面、谷面）をそれぞれ上下プレート２１、２２に接合されている。   The corrugated plate 30 is a copper plate formed into a corrugated shape, and is formed into a plane shape having a flat top and bottom folded surface (mountain surface, trough surface) and a rectangular wave with a continuous cross section. (Length × width × height) is adapted to the inner size of the box 30. And the window-like opening part 33 is formed in the wall surface 32 of the corrugated board 30 in the left-right side edge position, and as shown in FIG. 2 thru | or FIG. The body 30 is housed, and the upper and lower folded surfaces (mountain surface, trough surface) are joined to the upper and lower plates 21 and 22, respectively.

ここで、本実施形態のコルゲート板３０は、入口２３から出口２４に至る通水路が２経路となるように開口部３３の大きさを異なるように形成している。具体的には、図４に示すように、入口２３から入った水が２経路に分流するとともに、分流した水が均等に流通するように開口部３３を形成している。   Here, the corrugated plate 30 of the present embodiment is formed so that the size of the opening 33 is different so that there are two water passages from the inlet 23 to the outlet 24. Specifically, as shown in FIG. 4, the water entering from the inlet 23 is divided into two paths, and the opening 33 is formed so that the divided water flows evenly.

より具体的には、二つの経路が開口部３３にて折り返すときに、外回りにＵターンする流路ａと内回りにＵターンする流路ｂとの二つの流路に分流させ、その開口部３３で外回りにＵターンした水が次の開口部３３にて折り返すときに、内回りにＵターンする流路ｂに交互に流れるようにそれぞれの開口部３３を形成している。   More specifically, when the two paths are turned back at the opening 33, the two paths are divided into a flow path a that turns U outward and a flow path b that turns U, and the opening 33 Each of the openings 33 is formed such that when the water that has been U-turned outwardly turns back at the next opening 33, the water flows alternately to the flow path b that makes an U-turn inward.

つまり、外回りにＵターンする流路ａでは開口部３３の大きさをＬ１とし、内回りにＵターンする流路ｂでは開口部３３の大きさをＬ２として、流れにくい側の内回りにＵターンする流路ｂ側では開口部３３の開口面積（ 例えば、Ｌ１＜Ｌ２として）を大きくして、内回りにＵターンする流路ｂ側に流れやすいように形成している。   In other words, in the flow path a that makes a U-turn outward, the size of the opening 33 is L1, and in the flow path b that makes an U-turn inward, the size of the opening 33 is L2, and the flow that makes a U-turn inward on the side that is difficult to flow On the path b side, the opening area of the opening 33 (for example, L1 <L2) is increased so as to easily flow toward the flow path b that makes a U-turn inward.

これにより、分流における流量配分の均等性が図れる。しかも、入口２３から出口２４に至る通水路を２経路に形成することで、１経路のときよりもＵターン箇所の個数が半減することで通水抵抗を大幅に低減させることができる。   Thereby, the uniformity of the flow distribution in a shunt can be achieved. In addition, by forming the water passage from the inlet 23 to the outlet 24 in two paths, the number of U-turn locations is halved compared to the case of one path, so that the water passage resistance can be greatly reduced.

次に、冷媒回路となる密着並置した２本の細管１０は、銅チューブで形成され、図１ないし図３に示すように、箱体２０の外周に螺旋状に巻装して形成され、かつ箱体２０の両平坦面（表側および裏側）に接合されている。なお、２本の細管１０の両端が図示しない冷凍サイクルに接続されており、この冷媒通路には、高温高圧の冷媒が流通することで、箱体２０の両平坦面を介して箱体２０内に流通する水と熱交換が行なわれて壁面３２が伝熱フィンとして機能し、水が加熱されて出口２４から出湯する。   Next, two closely arranged juxtaposed tubes 10 serving as a refrigerant circuit are formed of copper tubes, and are formed by being spirally wound around the outer periphery of the box 20, as shown in FIGS. It is joined to both flat surfaces (front side and back side) of the box 20. Note that both ends of the two narrow tubes 10 are connected to a refrigeration cycle (not shown), and a high-temperature and high-pressure refrigerant flows through the refrigerant passage so that the inside of the box 20 is interposed via both flat surfaces of the box 20. The wall surface 32 functions as a heat transfer fin by exchanging heat with the water flowing through the water, and the water is heated and discharged from the outlet 24.

なお、以上の本実施形態では、２本の細管１０を箱体２０の外周に巻装したが、これに限らず、１本の細管１０を楕円状に形成して長辺側が両平坦面に接合するようにしても良い。さらに、２本以上の複数経路であっても良い。   In the above embodiment, the two thin tubes 10 are wound around the outer periphery of the box 20, but the present invention is not limited to this, and the single thin tube 10 is formed in an elliptical shape so that the long side is on both flat surfaces. You may make it join. Further, there may be two or more multiple paths.

以上の第１実施形態による熱交換器によれば、コルゲート板３０を開口部３３の大きさを異なるように形成することにより、箱体２０内を流通する通水路を２経路に分流できるとともに、２経路のうち、流れ難い経路側の開口面積を他の経路側よりも大きくなるように形成したことにより、２経路に形成しても流れ難い経路側に流量が配分されて流量配分の均等性が図れる。   According to the heat exchanger according to the first embodiment described above, by forming the corrugated plate 30 so that the size of the opening 33 is different, the water passage that circulates in the box 20 can be divided into two paths, By forming the opening area on the path side that is difficult to flow out of the two paths to be larger than that on the other path side, the flow rate is distributed to the path side that is difficult to flow even if it is formed on the two paths, and the flow rate is evenly distributed. Can be planned.

さらに、通水路を２経路に形成することで１経路のときに流通する開口部３３の個数を半減することができる。これにより、通水抵抗の低下が図れる。   Furthermore, the number of openings 33 that circulate in one route can be halved by forming two water passages. Thereby, reduction of water flow resistance can be aimed at.

また、コルゲート板３０は、折り返し面を平坦状のプレーン型に形成したことにより、プレーン型は細管１０との接合性および伝熱性が優れるので複数本の細管１０を密着並置して形成する他方の流体の通路を形成することができる。   In addition, since the corrugated plate 30 has a folded plane formed into a flat plane type, the plane type is excellent in bondability and heat transfer with the thin tube 10, so the other thin tube 10 is formed in close contact with each other. Fluid passages can be formed.

また、一方の通路に水が流通し、他方の通路に冷媒が流通することにより、上記構成の熱交換器はヒートポンプ式給湯機に適用する熱交換器として好適である。つまり、他方の通路を高温高圧の冷媒の使用に耐えられる構造で容易に形成できる。   Moreover, when water flows through one passage and refrigerant flows through the other passage, the heat exchanger configured as described above is suitable as a heat exchanger applied to a heat pump type hot water heater. That is, the other passage can be easily formed with a structure that can withstand the use of a high-temperature and high-pressure refrigerant.

（第２実施形態）
以上の第１実施形態では、コルゲート板３０の左右の側端位置に形成する開口部３３を、外回りにＵターンする流路ａでは開口部３３の大きさをＬ１とし、内回りにＵターンする流路ｂでは開口部３３の大きさをＬ２として、Ｌ１＜Ｌ２となるように形成したが、これに限らず、図６に示すように、外回りにＵターンする流路ａの入口側をＬ１とし、内回りにＵターンする流路ｂの入口側をＬ２とし、外回りにＵターンする流路ａの出口側をＬ３として、Ｌ１＜Ｌ２＜Ｌ３となるように開口部３３を形成しても良い。 (Second Embodiment)
In the first embodiment described above, the opening 33 formed at the left and right side end positions of the corrugated plate 30 is set to L1 in the flow path a that U-turns outward, and the flow that U-turns inwardly is used. In the path b, the size of the opening 33 is L2, and L1 <L2 is formed. However, the present invention is not limited to this, and as shown in FIG. The opening 33 may be formed such that L1 <L2 <L3, where L2 is the inlet side of the flow path b that makes an U-turn inward and L3 is the outlet side of the flow path a that makes a U-turn outward.

ところで、この場合においても、その開口部３３で外回りにＵターンした水が次の開口部３３にて折り返すときに、内回りにＵターンする流路ｂに交互に流れるようにそれぞれの開口部３３を形成している。これによれば、第１実施形態と同じように、通水抵抗の低下および流量配分の均等性が図れる。   By the way, also in this case, when the water that has U-turned outward at the opening 33 turns back at the next opening 33, each opening 33 is made to flow alternately into the flow path b that makes an U-turn inward. Forming. According to this, similarly to 1st Embodiment, the fall of water flow resistance and the uniformity of flow volume distribution can be aimed at.

なお、図６に示す開口部３３の大きさを図７に示すように、逆となるように形成しても良い。具体的には、外回りにＵターンする流路ａの入口側をＬ３とし、内回りにＵターンする流路ｂの入口側をＬ２とし、外回りにＵターンする流路ａの出口側をＬ１として、Ｌ１＜Ｌ２＜Ｌ３となるように開口部３３を形成しても良い。   In addition, you may form so that the magnitude | size of the opening part 33 shown in FIG. 6 may become reverse as shown in FIG. Specifically, the inlet side of the flow path a U-turns outward is L3, the inlet side of the flow path b U-turns inward is L2, and the outlet side of the flow path a U-turns outward is L1. The opening 33 may be formed so that L1 <L2 <L3.

（他の実施形態）
以上の実施形態では、入口２３から出口２４に至る通水路を２経路を形成するように構成したが、これに限らず、３経路に分流するように形成してもよく。それ以上の複数経路に形成してもよい。 (Other embodiments)
In the above embodiment, the water passage from the inlet 23 to the outlet 24 is configured to form two paths. However, the present invention is not limited to this, and may be formed so as to be divided into three paths. You may form in more than that multiple paths.

また、以上の実施形態では、冷媒を用いたヒートポンプ式給湯機に組み込む熱交換器に、本発明を適用させたが、これらの他に、２種類の流体の間で熱交換を行なう他の熱交換器に適用可能であり、しかも細管１０を流通する流体は、必ずしも冷媒に限られるものではない。   In the above embodiment, the present invention is applied to a heat exchanger incorporated in a heat pump type hot water heater using a refrigerant. However, in addition to these, other heat for exchanging heat between two types of fluids. The fluid that can be applied to the exchanger and flows through the thin tube 10 is not necessarily limited to the refrigerant.

本発明の第１実施形態における熱交換器の全体構成を示す平面図である。It is a top view which shows the whole structure of the heat exchanger in 1st Embodiment of this invention. 本発明の第１実施形態における熱交換器の全体構成を示す正面図である。It is a front view which shows the whole structure of the heat exchanger in 1st Embodiment of this invention. 図２に示すＡ−Ａ断面図である。It is AA sectional drawing shown in FIG. 本発明の第１実施形態におけるコルゲート板３０の構成を示す模式図である。It is a schematic diagram which shows the structure of the corrugated board 30 in 1st Embodiment of this invention. 本発明の第１実施形態における箱体２０の構成を示す分解斜視図である。It is a disassembled perspective view which shows the structure of the box 20 in 1st Embodiment of this invention. 本発明の第２実施形態におけるコルゲート板３０の構成を示す模式図である。It is a schematic diagram which shows the structure of the corrugated board 30 in 2nd Embodiment of this invention. 本発明の第２実施形態の変形例におけるコルゲート板３０の構成を示す模式図である。It is a schematic diagram which shows the structure of the corrugated board 30 in the modification of 2nd Embodiment of this invention.

符号の説明Explanation of symbols

１０…細管
２０…箱体
２１…上プレート（プレート）
２２…下プレート（プレート）
２３…入口
２４…出口
３０…コルゲート板
３２…壁面
３３…開口部 10 ... Narrow tube 20 ... Box 21 ... Upper plate
22 ... Lower plate (plate)
23 ... Inlet 24 ... Outlet 30 ... Corrugated plate 32 ... Wall surface 33 ... Opening

Claims (4)

絞り成形した２枚のプレート（２１、２２）を、周縁を接合して薄型矩形の箱体（２０）を形成し、周縁に開口した入口（２３）から出口（２４）に至る一方の流体の通路を形成し、
波型成形したコルゲート板（３０）の壁面（３２）に、左右の側端位置に開口部（３３）を形成し、前記コルゲート板（３０）を、上下折り返し面を前記プレート（２１、２２）に接合して前記箱体（２０）内に収容し、
一経路または複数経路からなる細管（１０）を前記箱体（２０）に螺旋状に巻装し、前記箱体（２０）の両平坦面に接合して他方の流体の通路を形成して、一方の流体と他方の流体とが熱交換する熱交換器において、
前記コルゲート板（３０）は、前記開口部（３３）の大きさを異なるように形成することで一方の流体の通路を少なくとも２経路以上の複数経路に形成したことを特徴とする熱交換器。 The two plates (21, 22) formed by drawing are joined at the periphery to form a thin rectangular box (20), and one of the fluids from the inlet (23) to the outlet (24) opened at the periphery. Form a passage,
On the wall surface (32) of the corrugated corrugated plate (30), openings (33) are formed at the left and right side end positions, and the corrugated plate (30) is turned up and down on the plate (21, 22). And accommodated in the box (20),
A thin tube (10) composed of one path or a plurality of paths is spirally wound around the box (20), joined to both flat surfaces of the box (20) to form a passage for the other fluid, In a heat exchanger in which one fluid and the other fluid exchange heat,
In the heat exchanger, the corrugated plate (30) is formed such that the size of the opening (33) is different so that one fluid passage is formed in a plurality of paths of at least two paths. 前記開口部（３３）は、前記複数経路のうち、流れ難い経路側の開口面積を他の経路側よりも大きくなるように形成したことを特徴とする請求項１に記載の熱交換器。   2. The heat exchanger according to claim 1, wherein the opening (33) is formed such that an opening area on a path side that is difficult to flow out of the plurality of paths is larger than that on the other path side. 前記コルゲート板（３０）は、折り返し面を平坦状のプレーン型に形成したことを特徴とする請求項１または請求項２に記載の熱交換器。   The heat exchanger according to claim 1 or 2, wherein the corrugated plate (30) has a folded surface formed in a flat plane shape. 一方の流体の通路に水が流通し、他方の流体の通路に冷媒が流通することを特徴とする請求項１ないし請求項３のいずれか一項に記載の熱交換器。   The heat exchanger according to any one of claims 1 to 3, wherein water flows through one fluid passage and refrigerant flows through the other fluid passage.
JP2004284452A 2004-09-29 2004-09-29 Heat exchanger Expired - Fee Related JP4461989B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101071236B1 (en) 2009-02-11 2011-10-10 르노삼성자동차 주식회사 Fuel apparatus of Liquid phase LPG Injection vehicle
JP2013508657A (en) * 2009-10-23 2013-03-07 フォイト パテント ゲーエムベーハー Heat exchanger plate and evaporator having the same
US20150090802A1 (en) * 2012-05-02 2015-04-02 Webasto SE Heating device for a vehicle and method of operating the heating device
CN109910543A (en) * 2017-12-13 2019-06-21 郑州宇通客车股份有限公司 A kind of vehicle heat management system and vehicle
CN114474599A (en) * 2020-10-23 2022-05-13 神讯电脑(昆山)有限公司 Temperature regulation component, discharging device and die

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101071236B1 (en) 2009-02-11 2011-10-10 르노삼성자동차 주식회사 Fuel apparatus of Liquid phase LPG Injection vehicle
JP2013508657A (en) * 2009-10-23 2013-03-07 フォイト パテント ゲーエムベーハー Heat exchanger plate and evaporator having the same
US20150090802A1 (en) * 2012-05-02 2015-04-02 Webasto SE Heating device for a vehicle and method of operating the heating device
US9895957B2 (en) * 2012-05-02 2018-02-20 Webasto SE Heating device for a vehicle and method of operating the heating device
CN109910543A (en) * 2017-12-13 2019-06-21 郑州宇通客车股份有限公司 A kind of vehicle heat management system and vehicle
CN114474599A (en) * 2020-10-23 2022-05-13 神讯电脑(昆山)有限公司 Temperature regulation component, discharging device and die
CN114474599B (en) * 2020-10-23 2024-03-19 神讯电脑(昆山)有限公司 Temperature adjusting component, discharging device and die

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