JP6410527B2 - Evaporator with cool storage function - Google Patents
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- JP6410527B2 JP6410527B2 JP2014173456A JP2014173456A JP6410527B2 JP 6410527 B2 JP6410527 B2 JP 6410527B2 JP 2014173456 A JP2014173456 A JP 2014173456A JP 2014173456 A JP2014173456 A JP 2014173456A JP 6410527 B2 JP6410527 B2 JP 6410527B2
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Description
この発明は蓄冷機能付きエバポレータに関する。 The present invention relates to an evaporator with a cold storage function.
この明細書および特許請求の範囲において、図１、図２および図４の上下を上下というものとし、通風方向下流側（図１、図２および図４に矢印Ｘで示す方向）を前、これと反対側を後というものとし、前方から後方を見た際の左右、すなわち図１の左右を左右というものとする。 In this specification and claims, the upper and lower sides of FIGS. 1, 2 and 4 are the upper and lower sides, and the downstream side in the ventilation direction (the direction indicated by the arrow X in FIGS. 1, 2 and 4) is the front, The opposite side is the rear, and the left and right when viewed from the front, that is, the left and right in FIG .
たとえば、環境保護や自動車の燃費向上などを目的として、信号待ちなどの停車時にエンジンを自動的に停止させる自動車が提案されている。 For example, for the purpose of protecting the environment and improving the fuel consumption of an automobile, an automobile that automatically stops the engine when the vehicle stops, such as waiting for a signal, has been proposed.
しかしながら、通常のカーエアコンにおいては、エンジンを停止させると、エンジンを駆動源とする圧縮機が停止するので、エバポレータに冷媒が供給されなくなり、冷房能力が急激に低下するという問題がある。 However, in a normal car air conditioner, when the engine is stopped, the compressor using the engine as a driving source stops, so that there is a problem that the refrigerant is not supplied to the evaporator and the cooling capacity is rapidly reduced.
そこで、このような問題を解決するために、エバポレータに蓄冷機能を付与し、エンジンが停止して圧縮機が停止した際に、エバポレータに蓄えられた冷熱を放冷して車室内を冷却することが考えられている。 Therefore, in order to solve such problems, the evaporator is provided with a cold storage function, and when the engine stops and the compressor stops, the cold stored in the evaporator is discharged to cool the vehicle interior. Is considered.
この種の蓄冷機能付きエバポレータとして、本出願人は、先に、熱交換コア部に、長手方向が上下方向を向くとともに幅方向が通風方向を向いた複数の扁平状冷媒流通管が、冷媒流通管の厚み方向に間隔をおいて並列状に配置され、隣り合う冷媒流通管どうしの間に間隙が形成され、全間隙のうちの一部でかつ複数の間隙に、それぞれ蓄冷材が封入された蓄冷材容器が配置されて冷媒流通管にろう付され、残りの間隙に、それぞれアウターフィンが配置されて冷媒流通管にろう付され、蓄冷材容器が配置された間隙の両側の間隙のうち少なくともいずれか一方の間隙にアウターフィンが配置されており、蓄冷材容器が、熱交換コア部の通風方向の範囲内に位置する部分を有し、蓄冷材容器に蓄冷材封入部が設けられるとともに、蓄冷材封入部内に蓄冷材が入れられており、蓄冷材容器の蓄冷材封入部における熱交換コア部の通風方向の範囲内に位置する部分の冷媒流通管の並び方向の両側壁に、両側壁を変形させることによって外方に膨出した複数の凸部が形成されるとともに、一方の側壁の凸部と他方の側壁の凸部とが冷媒流通管の並び方向側方から見てずれており、蓄冷材容器内にインナーフィンが配置され、蓄冷材容器内に配置されたインナーフィンが、蓄冷材容器の両側壁における凸部が形成されていない部分の内面のみにろう付されている蓄冷機能付きエバポレータを提案した(特許文献１参照)。 As an evaporator with this kind of cold storage function, the applicant firstly has a plurality of flat refrigerant flow pipes whose longitudinal direction faces the up-and-down direction and whose width direction faces the ventilation direction in the heat exchange core portion. Arranged in parallel at intervals in the thickness direction of the pipe, a gap is formed between adjacent refrigerant flow pipes, and a regenerator material is sealed in each of a part of the whole gap and a plurality of gaps. A cold storage material container is disposed and brazed to the refrigerant flow pipe, and outer fins are respectively disposed and brazed to the refrigerant flow pipe in the remaining gaps, and at least of the gaps on both sides of the gap where the cold storage material container is disposed. Outer fins are arranged in any one of the gaps, the regenerator container has a portion located within the range of the ventilation direction of the heat exchange core part, and the regenerator container is provided with the regenerator material enclosing part, Cold storage material enclosure The regenerator material is placed in the regenerator material container of the regenerator material container. A plurality of projections bulging outward are formed by the projection, and the projections on one side wall and the projections on the other side wall are misaligned when viewed from the side in the direction in which the refrigerant flow tubes are arranged, Proposes an evaporator with a cool storage function in which inner fins are placed inside and the inner fins placed in the cool storage material container are brazed only to the inner surfaces of the side walls of the cool storage material container where the convex portions are not formed (See Patent Document 1).
しかしながら、特許文献１記載の蓄冷機能付きエバポレータでは、圧縮機が作動している蓄冷時に、蓄冷材容器の両側壁に形成された凸部内に溜まっている蓄冷材への冷熱の熱伝導性が十分ではなく、蓄冷性能の向上効果に限界がある。 However, in the evaporator with the cold storage function described in Patent Document 1, the cold thermal conductivity to the cold storage material accumulated in the convex portions formed on the both side walls of the cold storage material container is sufficient during cold storage when the compressor is operating. Rather, there is a limit to the effect of improving the cold storage performance.
この発明の目的は、上記問題を解決し、蓄冷材容器の両側壁に形成された凸部内に溜まっている蓄冷材への冷熱の熱伝導性を向上しうる蓄冷機能付きエバポレータを提供することにある。 An object of the present invention is to provide an evaporator with a cold storage function that can solve the above-mentioned problems and can improve the thermal conductivity of cold heat to the cold storage material accumulated in the convex portions formed on both side walls of the cold storage material container. is there.
本発明は、上記目的を達成するために以下の態様からなる。 In order to achieve the above object, the present invention comprises the following aspects.
1)熱交換コア部に、長手方向が上下方向を向くとともに幅方向が通風方向を向いた複数の扁平状冷媒流通管が、左右方向に間隔をおいて並列状に配置され、隣り合う冷媒流通管どうしの間に間隙が形成され、全間隙のうちの一部でかつ複数の間隙に、それぞれ蓄冷材が封入された蓄冷材容器が配置されて冷媒流通管にろう付され、残りの間隙に、それぞれアウターフィンが配置されて冷媒流通管にろう付され、蓄冷材容器が配置された間隙の両側の間隙のうち少なくともいずれか一方の間隙にアウターフィンが配置されており、蓄冷材容器に蓄冷材封入部が設けられるとともに、蓄冷材封入部内に蓄冷材が入れられており、蓄冷材容器が、熱交換コア部の通風方向の範囲内に位置する容器本体部を有し、蓄冷材容器の蓄冷材封入部の左右両側壁のうちいずれか一方の側壁における容器本体部に存在する第１側壁部分が、全体に同一平面内に位置する第１平坦部と、第１側壁部分を変形させることによって形成されかつ第１平坦部から外方に膨出した複数の凸部とを有し、蓄冷材容器の蓄冷材封入部の左右両側壁のうちいずれか他方の側壁における容器本体部に存在する第２側壁部分が、全体に同一平面内に位置しかつ第１平坦部と一定の間隔をおいて対向する第２平坦部と、第２側壁部分を変形させることによって形成されかつ第２平坦部から外方に膨出した複数の凸部とを有し、第１側壁部分の第１平坦部および第２側壁部分の第２平坦部が、冷媒流通管から離隔するとともにアウターフィンとは未接触状態であり、第１側壁部分および第２側壁部分の凸部の膨出端が冷媒流通管のみに接触するとともに、アウターフィンとは未接触状態であり、すべての凸部が、第１側壁部分および第２側壁部分の上部に形成され、かつ上方から下方に向かって風上側に傾斜するとともに互いに平行となっている複数の第１傾斜部と、第１側壁部分および第２側壁部分の下部に形成され、かつ上方から下方に向かって風上側に傾斜するとともに互いに平行となっている複数の第２傾斜部と、第１側壁部分および第２側壁部分の高さ方向中間部に形成され、かつ一部の第１傾斜部の下端と一部の第２傾斜部の上端とを連結するとともに互いに平行となっている複数の鉛直部とを有しており、蓄冷材容器内にインナーフィンが配置されている蓄冷機能付きエバポレータであって、
蓄冷材封入部の第１側壁部分および第２側壁部分に形成された第１傾斜部どうし、第２傾斜部どうしおよび鉛直部どうしがそれぞれ冷媒流通管の並び方向側方から見てずれており、第１側壁部分の第１傾斜部が第２側壁部分の隣り合う２つの第１傾斜部どうしの間に形成され、第１側壁部分の第２傾斜部が第２側壁部分の隣り合う２つの第２傾斜部どうしの間に形成され、第１側壁部分の鉛直部が第２側壁部分の隣り合う２つの鉛直部どうしの間に形成されており、
蓄冷材容器内に、上部に位置する上インナーフィンと、下部に位置する下インナーフィンと、高さ方向中間部に位置する中インナーフィンとが配置され、上インナーフィンが、第１側壁部分の凸部の第１傾斜部と同方向にのびる波頂部、第２側壁部分の凸部の第１傾斜部と同方向にのびる波底部、および波頂部と波底部とを連結する連結部からなり、下インナーフィンが、第１側壁部分の凸部の第２傾斜部と同方向にのびる波頂部、第２側壁部分の凸部の第２傾斜部と同方向にのびる波底部、および波頂部と波底部とを連結する連結部からなり、中インナーフィンが、第１側壁部分の凸部の鉛直部と同方向にのびる波頂部、第２側壁部分の凸部の鉛直部と同方向にのびる波底部、および波頂部と波底部とを連結する連結部からなり、すべてのインナーフィンの一部分が、第１側壁部分および第２側壁部分の凸部内に入り込んでおり、インナーフィンが、蓄冷材容器の第１側壁部分における凸部の膨出端壁の内面、および第１側壁部分における凸部が形成されていない第１平坦部の内面と、蓄冷材容器の第２側壁部分における凸部が形成されていない第２平坦部の内面、および第２側壁部分における凸部の膨出端壁の内面とに接合されている蓄冷機能付きエバポレータ。
1) A plurality of flat refrigerant flow pipes whose longitudinal direction faces the up-and-down direction and whose width direction faces the ventilation direction are arranged in parallel in the left-right direction at the heat exchange core portion, and adjacent refrigerant flow A gap is formed between the pipes, and a cool storage material container in which a cool storage material is sealed is disposed in a part and a plurality of the gaps, and is brazed to the refrigerant flow pipe, and the remaining gaps Outer fins are respectively disposed and brazed to the refrigerant flow pipe, and outer fins are disposed in at least one of the gaps on both sides of the gap in which the cold storage material container is disposed, and the cold storage material container is A regenerator material is provided, and a regenerator material is placed in the regenerator material enclosing part, and the regenerator material container has a container body part located within the range of the ventilation direction of the heat exchange core part, and the regenerator material container both the left and right sides of the cold storage material encapsulation The first side wall portion, a first flat portion positioned in the same plane throughout, is formed by deforming the first side wall portion and the first flat portion that is present in the container main body in either one of the side walls of the A plurality of convex portions bulging outward from the second side wall portion present in the container main body portion on the other side wall of the left and right side walls of the cool storage material enclosure of the cool storage material container, A plurality of second flat portions that are located in the same plane and face the first flat portion with a certain distance therebetween, and are formed by deforming the second side wall portion and bulge outward from the second flat portion. The first flat portion of the first side wall portion and the second flat portion of the second side wall portion are separated from the refrigerant flow pipe and are not in contact with the outer fin, and the first side wall portion And the bulging end of the convex portion of the second side wall portion And is not in contact with the outer fin, and all the convex portions are formed on the upper portions of the first side wall portion and the second side wall portion, and are inclined upward from the upper side toward the downwind side. A plurality of first inclined portions that are parallel to each other and a plurality of first inclined portions that are formed below the first side wall portion and the second side wall portion and that are inclined inward from the upper side to the lower side and are parallel to each other. The second inclined portion is formed at the intermediate portion in the height direction of the first side wall portion and the second side wall portion, and connects the lower end of some of the first inclined portions and the upper end of some of the second inclined portions. It is an evaporator with a cold storage function that has a plurality of vertical portions that are parallel to each other , and an inner fin is disposed in the cold storage material container,
The first inclined portions formed on the first side wall portion and the second side wall portion of the regenerator material enclosing portion, the second inclined portions and the vertical portions are shifted from each other when viewed from the side of the refrigerant distribution pipe, The first inclined portion of the first sidewall portion is formed between two adjacent first inclined portions of the second sidewall portion, and the second inclined portion of the first sidewall portion is adjacent to the second second inclined portion of the second sidewall portion. Formed between two inclined portions, the vertical portion of the first side wall portion is formed between two adjacent vertical portions of the second side wall portion,
In the cool storage material container, an upper inner fin located at the upper portion, a lower inner fin located at the lower portion, and a middle inner fin located at the intermediate portion in the height direction are disposed, and the upper inner fin is disposed on the first side wall portion. The wave crest portion extending in the same direction as the first inclined portion of the convex portion, the wave bottom portion extending in the same direction as the first inclined portion of the convex portion of the second side wall portion, and a connecting portion connecting the wave crest portion and the wave bottom portion, The lower inner fin has a wave crest extending in the same direction as the second inclined portion of the convex portion of the first side wall portion, a wave bottom portion extending in the same direction as the second inclined portion of the convex portion of the second side wall portion, and the wave crest portion and the wave The wave bottom part which consists of a connection part which connects the bottom part, and the inner inner fin extends in the same direction as the vertical part of the convex part of the first side wall part, and the vertical part of the convex part of the second side wall part. , and it consists of connecting portion for connecting the wave crest portions and the wave trough portion, all Portion of N'nafin is, and enters the first side wall portion and the convex portion of the second side wall portion, the inner fins, the inner surface of the bulging end wall of the convex portion of the first side wall portion of the cold storage container, and the first side wall portion The inner surface of the first flat part in which no convex part is formed, the inner surface of the second flat part in which the convex part in the second side wall portion of the cool storage material container is not formed, and the bulge of the convex part in the second side wall part An evaporator with a cold storage function joined to the inner surface of the end wall.
2)インナーフィンが、蓄冷材容器の第１側壁部分における凸部の膨出端壁の内面、および第１側壁部分の第１平坦部の内面に接合された波頂部と、蓄冷材容器の第２側壁部分における凸部が形成されていない第２平坦部分の内面、および第２側壁部分における凸部の膨出端壁の内面とに接合された波底部と、波頂部と波底部を連結する連結部とを備えている上記1)記載の蓄冷機能付きエバポレータ。 2) inner Fin has a first inner surface of the bulging end wall of the convex portion of the side wall portion, and a crest portion bonded to the inner surface of the first flat portion of the first side wall portion of the cold storage container, first of cold storage container The wave bottom part joined to the inner surface of the 2nd flat part in which the convex part in the 2 side wall part is not formed, and the inner surface of the bulging end wall of the convex part in the 2nd side wall part , and a wave crest part and a wave bottom part are connected. The evaporator with a cold storage function according to 1) , further comprising a connecting portion.
3)インナーフィンがコルゲート状またはオフセット状である上記1)または2)記載の蓄冷機能付きエバポレータ。 3) The evaporator with a cold storage function according to the above 1) or 2 ), wherein the inner fin is corrugated or offset.
上記1)〜3)の蓄冷機能付きエバポレータによれば、圧縮機が作動している蓄冷時に、冷媒流通管内を流れる冷媒の冷熱が、蓄冷材容器の側壁および凸部の膨出端壁内面に接合されたインナーフィンを介して凸部内に溜まっている蓄冷材に伝わる。したがって、特許文献１記載の蓄冷機能付きエバポレータに比較して、圧縮機が作動している蓄冷時に、蓄冷材容器の両側壁に形成された凸部内に溜まっている蓄冷材への冷熱の熱伝導性が向上し、蓄冷性能を向上させることができる。 According to the evaporator with a cold storage function of 1) to 3) above, the cold heat of the refrigerant flowing in the refrigerant distribution pipe is applied to the side wall of the cold storage material container and the inner surface of the bulging end wall of the convex portion during cold storage when the compressor is operating. It is transmitted to the cold storage material accumulated in the convex portion through the joined inner fin. Therefore, compared with the evaporator with a cool storage function described in Patent Document 1, the heat conduction of the cold heat to the cool storage material accumulated in the convex portions formed on the both side walls of the cool storage material container at the time of cold storage when the compressor is operating. This improves the cold storage performance.
また、複数の凸部の間を空気が流れるので、蓄冷材容器を配置することによる通気抵抗の増大を少なくすることが可能になる。 Further, since air flows between the plurality of convex portions, it is possible to reduce an increase in ventilation resistance due to the arrangement of the cold storage material container.
また、すべての凸部が、第１側壁部分および第２側壁部分の上部に形成され、かつ上方から下方に向かって風上側に傾斜するとともに互いに平行となっている複数の第１傾斜部と、第１側壁部分および第２側壁部分の下部に形成され、かつ上方から下方に向かって風上側に傾斜するとともに互いに平行となっている複数の第２傾斜部と、第１側壁部分および第２側壁部分の高さ方向中間部に形成され、かつ一部の第１傾斜部の下端と一部の第２傾斜部の上端とを連結するとともに互いに平行となっている複数の鉛直部とを有している場合であっても、蓄冷材容器内に配置されたインナーフィンを部分的に凸部内に入り込ませること、ならびにインナーフィンを、蓄冷材容器の一方の側壁の第１側壁部分における凸部の膨出端壁の内面、および第１側壁部分における凸部が形成されていない第１平坦部の内面と、蓄冷材容器の他方の側壁の第２側壁部分における凸部が形成されていない第２平坦部の内面、および第２側壁部分における凸部の膨出端壁の内面とに接合することを比較的簡単に行うことができる。 A plurality of first inclined portions formed on the upper portions of the first side wall portion and the second side wall portion, and inclined to the windward side from the upper side to the lower side and parallel to each other; A plurality of second inclined portions formed at a lower portion of the first side wall portion and the second side wall portion and inclined in an upwind direction from above to below and parallel to each other; and the first side wall portion and the second side wall A plurality of vertical portions that are formed at the intermediate portion in the height direction of the portion and connect the lower ends of some of the first inclined portions and the upper ends of some of the second inclined portions and are parallel to each other; Even if it is the case, the inner fin arranged in the cold storage material container partially enters the convex portion, and the inner fin of the convex portion in the first side wall portion of one side wall of the cold storage material container the inner surface of the bulging end walls, and And the inner surface of the first flat portion which is not a convex portion is formed in one side wall portion, the inner surface of the second flat portion which is not a convex portion is formed in the second side wall portion of the other side wall of the cold storage container, and a second side wall Joining to the inner surface of the bulging end wall of the convex portion in the portion can be performed relatively easily.
さらに、インナーフィンの連結部の働きによって、蓄冷材容器内の蓄冷材の通風方向の大きな移動が抑制される。したがって、蓄冷材容器内での蓄冷材の大きな移動に起因する異音の発生が抑制される。 Further, the movement of the cool storage material in the cool storage material container in the ventilation direction is suppressed by the action of the connecting portion of the inner fin . Therefore, generation | occurrence | production of the noise resulting from the big movement of the cool storage material in a cool storage material container is suppressed.
以下、この発明の実施形態を、図面を参照して説明する。 Hereinafter, the embodiments of the present invention will be described with reference to the drawings.
さらに、以下の説明において、「アルミニウム」という用語には、純アルミニウムの他にアルミニウム合金を含むものとする。 Furthermore , in the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum.
図１はこの発明による蓄冷機能付きエバポレータの全体構成を示し、図２〜図６はその要部の構成を示す。 FIG. 1 shows the overall structure of an evaporator with a cold storage function according to the present invention, and FIGS.
図１において、蓄冷機能付きエバポレータ(1)は、長手方向を左右方向に向けた状態で上下方向に間隔をおいて配置されたアルミニウム製第１ヘッダタンク(2)およびアルミニウム製第２ヘッダタンク(3)と、両ヘッダタンク(2)(3)間に設けられた熱交換コア部(4)とを備えている。 In FIG. 1, an evaporator with a cold storage function (1) includes an aluminum first header tank (2) and an aluminum second header tank (2) arranged at intervals in the vertical direction with the longitudinal direction directed in the horizontal direction. 3) and a heat exchange core section (4) provided between the header tanks (2) and (3).
第１ヘッダタンク(2)は、前側（通風方向下流側）に位置する風下側上ヘッダ部(5)と、後側（通風方向上流側）に位置しかつ風下側上ヘッダ部(5)に一体化された風上側上ヘッダ部(6)とを備えている。風下側上ヘッダ部(5)の左端部に冷媒入口(7)が設けられ、風上側上ヘッダ部(6)の左端部に冷媒出口(8)が設けられている。第２ヘッダタンク(3)は、前側に位置する風下側下ヘッダ部(9)と、後側に位置しかつ風下側下ヘッダ部(9)に一体化された風上側下ヘッダ部(11)とを備えている。 The first header tank (2) is located on the leeward upper header part (5) located on the front side (downstream side in the ventilation direction) and on the leeward side upper header part (5) located on the rear side (upstream side in the ventilation direction). And an integrated upwind header section (6). A refrigerant inlet (7) is provided at the left end of the leeward upper header portion (5), and a refrigerant outlet (8) is provided at the left end of the leeward upper header portion (6). The second header tank (3) includes a leeward lower header portion (9) located on the front side and an upwind lower header portion (11) located on the rear side and integrated with the leeward lower header portion (9). And.
熱交換コア部(4)には、長手方向が上下方向を向くとともに幅方向が通風方向（前後方向）を向いた複数のアルミニウム製扁平状冷媒流通管(12)が、左右方向（冷媒流通管(12)の厚み方向）に間隔をおいて並列状に配置されている。ここでは、前後方向に間隔をおいて配置された２つの冷媒流通管(12)からなる複数の組(13)が左右方向に間隔をおいて配置されており、前後の冷媒流通管(12)よりなる組(13)の隣り合うものどうしの間に間隙(14A)(14B)が形成されている。前側の冷媒流通管(12)の上端部は風下側上ヘッダ部(5)に接続されるとともに、同下端部は風下側下ヘッダ部(9)に接続されている。また、後側の冷媒流通管(12)の上端部は風上側上ヘッダ部(6)に接続されるとともに、同下端部は風上側下ヘッダ部(11)に接続されている。 The heat exchange core section (4) has a plurality of aluminum flat refrigerant flow pipes (12) whose longitudinal direction faces the up-down direction and whose width direction faces the ventilation direction (front-rear direction). (12) in the thickness direction) and arranged in parallel. Here, a plurality of sets (13) consisting of two refrigerant flow pipes (12) arranged at intervals in the front-rear direction are arranged at intervals in the left-right direction, and the front and rear refrigerant flow pipes (12) A gap (14A) (14B) is formed between adjacent members of the set (13). An upper end portion of the front refrigerant flow pipe (12) is connected to the leeward upper header portion (5), and a lower end portion thereof is connected to the leeward lower header portion (9). Further, the upper end portion of the rear refrigerant flow pipe (12) is connected to the windward upper header portion (6), and the lower end portion thereof is connected to the windward lower header portion (11).
熱交換コア部(4)における全間隙(14A)(14B)のうち一部の複数の間隙(14A)でかつ隣接していない間隙(14A)に、蓄冷材(図示略)が封入されたアルミニウム製蓄冷材容器(15)が、前後両冷媒流通管(12)に跨るように配置されて間隙(14A)を形成する左右両側の組(13)を構成する前後両冷媒流通管(12)にろう付されている。 Aluminum in which a regenerator material (not shown) is enclosed in a plurality of gaps (14A) and non-adjacent gaps (14A) among all gaps (14A) (14B) in heat exchange core section (4) A cold storage container (15) is disposed across the front and rear refrigerant flow pipes (12), and is disposed across the front and rear refrigerant flow pipes (12) to form both the left and right refrigerant flow pipes (12) forming a gap (14A). It is brazed.
熱交換コア部(4)における全間隙(14A)(14B)のうち残りの間隙(14B)に、両面にろう材層を有するアルミニウムブレージングシートからなり、かつ前後方向にのびる波頂部、前後方向にのびる波底部、および波頂部と波底部とを連結する連結部よりなるコルゲート状のアウターフィン(16)が、前後両冷媒流通管(12)に跨るように配置されて間隙(14B)を形成する左右両側の組(13)を構成する前後両冷媒流通管(12)にろう付されている。この実施形態では、蓄冷材容器(15)が配置された間隙(14A)の左右両側に隣り合う間隙(14B)にはそれぞれアウターフィン(16)が配置されており、左右方向に隣り合う蓄冷材容器(15)間には複数、ここでは２つのアウターフィン(16)が位置している。左右方向に隣り合う蓄冷材容器(15)間に位置するアウターフィン(16)の数は２つに限定されるものではなく、３つ以上でもよい。また、左右両端の冷媒流通管(12)の組(13)の外側にも両面にろう材層を有するアルミニウムブレージングシートからなるアウターフィン(16)が配置されて前後両冷媒流通管(12)にろう付され、さらに左右両端のアウターフィン(16)の外側にアルミニウム製サイドプレート(17)が配置されてアウターフィン(16)にろう付されている。 Of the total gap (14A) (14B) in the heat exchange core part (4), the remaining gap (14B) is made of an aluminum brazing sheet having a brazing filler metal layer on both sides, and the wave crest extends in the front-rear direction, in the front-rear direction. A corrugated outer fin (16) composed of a corrugated bottom portion that extends and a connecting portion that connects the corrugated portion and the wave bottom portion is disposed so as to straddle the front and rear refrigerant flow pipes (12) to form a gap (14B). It is brazed to the front and rear refrigerant flow pipes (12) that constitute the left and right sets (13). In this embodiment, outer fins (16) are respectively arranged in the gaps (14B) adjacent to the left and right sides of the gap (14A) in which the cold storage material container (15) is arranged, and the cold storage materials adjacent in the left-right direction are arranged. A plurality of, here two outer fins (16) are located between the containers (15). The number of outer fins (16) positioned between the cold storage material containers (15) adjacent in the left-right direction is not limited to two, and may be three or more. In addition, outer fins (16) made of an aluminum brazing sheet having brazing filler metal layers on both sides are also arranged outside the set (13) of the refrigerant flow pipes (12) at both left and right ends, and the front and rear refrigerant flow pipes (12). An aluminum side plate (17) is disposed outside the outer fins (16) at both left and right ends and brazed to the outer fins (16).
アウターフィン(16)の風下側端部は前側（風下側）冷媒流通管(12)の風下側端部と通風方向の同一位置にあり、同じく風上側端部は後側（風上側）冷媒流通管(12)の風上側端部と通風方向の同一位置にある。ここで、前側（風下側）冷媒流通管(12)の風下側端部と後側（風上側）冷媒流通管(12)の風上側端部との直線距離を、熱交換コア部(4)の通風方向の全幅というものとする。 The leeward end of the outer fin (16) is in the same position in the ventilation direction as the leeward end of the front (leeward) refrigerant flow pipe (12), and the windward end is the rear (leeward) refrigerant flow. It is in the same position in the ventilation direction as the windward end of the pipe (12). Here, the linear distance between the leeward end of the front (leeward) refrigerant flow pipe (12) and the windward end of the rear (leeward) refrigerant flow pipe (12) is defined as the heat exchange core part (4). It is said to be the full width in the ventilation direction.
この実施形態のエバポレータ(1)の場合、冷媒は、冷媒入口(7)を通ってエバポレータ(1)の風下側上ヘッダ部(5)内に入り、全冷媒流通管(12)を通って風上側上ヘッダ部(6)の冷媒出口(8)から流出する。 In the case of the evaporator (1) of this embodiment, the refrigerant passes through the refrigerant inlet (7) and enters the leeward upper header portion (5) of the evaporator (1) and passes through the entire refrigerant circulation pipe (12). It flows out from the refrigerant outlet (8) of the upper upper header section (6).
図２〜図６に示すように、蓄冷材容器(15)は、長手方向を上下方向に向けるとともに幅方向を前後方向に向けた略縦長方形の扁平中空状であり、熱交換コア部(4)の通風方向の範囲内に位置し、かつ各組(13)の前後２つの冷媒流通管(12)にろう付された容器本体部(18)と、容器本体部(18)の前側縁部（風下側縁部）の一部分、ここでは上部のみに連なるとともにアウターフィン(16)の前端よりも前方（通風方向外側）に張り出すように設けられた外方張り出し部(19)とよりなる。蓄冷材容器(15)の容器本体部(18)内には、複数、ここでは３つのコルゲート状アルミニウム製インナーフィン(21)(22)(23)が、上下方向に並ぶとともに上下方向のほぼ全体にわたって配置されている。また、蓄冷材容器(15)の外方張り出し部(19)は蓄冷材容器(15)の上端から若干下がった部分から一定の長さにわたって設けられている。 As shown in FIGS. 2 to 6, the regenerator container (15) is a flat hollow shape of a substantially vertical rectangle with the longitudinal direction facing the up-down direction and the width direction facing the front-rear direction, and the heat exchange core portion (4 ) And the container body (18) brazed to the two refrigerant flow pipes (12) before and after each pair (13), and the front edge of the container body (18). A part of the (leeward side edge part), here, the outer projecting part (19) provided so as to project only forward (outward in the ventilation direction) from the front end of the outer fin (16) while continuing to only the upper part. A plurality of, here three corrugated aluminum inner fins (21), (22), (23) are arranged vertically in the container body (18) of the cool storage material container (15), and almost in the vertical direction. Is arranged over. Further, the outwardly projecting portion (19) of the cold storage material container (15) is provided over a certain length from a portion slightly lowered from the upper end of the cold storage material container (15).
蓄冷材容器(15)は、両面にろう材層を有するアルミニウムブレージングシートにプレス加工が施されることにより形成され、かつ一定幅を有する周縁の帯状部(24a)(25a)どうしが互いにろう付された２枚の略縦長方形状のアルミニウム製容器構成板(24)(25)よりなる。蓄冷材容器(15)には、両容器構成板(24)(25)の帯状部(24a)(25a)を除いた部分を外方に膨出させることによって、中空状の蓄冷材封入部(26)が、容器本体部(18)から外方張り出し部(19)にかけて形成され、蓄冷材封入部(26)内に蓄冷材が入れられている。ここで、両容器構成板(24)(25)の帯状部(24a)(25a)を除いた部分の外方膨出部を(24b)(25b)で示す。 The cold storage material container (15) is formed by pressing an aluminum brazing sheet having a brazing filler metal layer on both sides, and the peripheral strips (24a) (25a) having a certain width are brazed to each other. The aluminum container constituting plates (24) and (25) having two substantially vertical rectangular shapes. In the cool storage material container (15), a hollow cool storage material enclosing part (excluding the belt-like parts (24a) and (25a)) of both container component plates (24) and (25) is bulged outward ( 26) is formed from the container body portion (18) to the outwardly projecting portion (19), and the cold storage material is placed in the cold storage material enclosing portion (26). Here, the outward bulges of the parts excluding the strips (24a) and (25a) of the container constituting plates (24) and (25) are indicated by (24b) and (25b).
蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)における容器本体部(18)に存在する部分、すなわち両容器構成板(24)(25)の外方膨出部(24b)(25b)の膨出頂壁における容器本体部(18)に存在する部分に、両側壁(26a)(26b)を変形させることによって、外方に膨出しかつ一定の幅および長さを有する複数の凸部(27)(28)が形成されており、全凸部(27)(28)の膨出端壁全体のうち少なくとも一部が冷媒流通管(12)の平坦な側壁にろう付されている。ここで、蓄冷材容器(15)の蓄冷材封入部(26)の左側壁(26a)における容器本体部(18)に存在する部分を第１側壁部分といい、右側壁(26b)における容器本体部(18)に存在する部分を第２側壁部分というものとする。 The portion of the cool storage material container (15) that is present in the container body (18) in the left and right side walls (26a) and (26b) of the cool storage material enclosure (26), that is, the outside of both container components (24) and (25) By deforming the side walls (26a) and (26b) to the portion of the bulging top wall of the bulging portion (24b) (25b) existing in the container body (18), the bulging portion (24b) (25b) bulges outward and has a constant width. And a plurality of convex portions (27), (28) having a length are formed, and at least a part of the entire bulging end wall of all the convex portions (27), (28) is flat in the refrigerant flow pipe (12). It is brazed to a side wall. Here, the part which exists in the container main-body part (18) in the left side wall (26a) of the cool storage material enclosure part (26) of a cool storage material container (15) is called a 1st side wall part, and the container main body in a right side wall (26b) The part existing in the part (18) is referred to as a second side wall part.
すなわち、蓄冷材容器(15)の蓄冷材封入部(26)の左側壁(26a)における容器本体部(18)に存在する第１側壁部分が、全体に同一平面内に位置する第１平坦部と、左側壁(26a)の第１側壁部分を変形させることによって形成されかつ第１平坦部から外方に膨出した複数の凸部(27)(28)とを有し、蓄冷材容器(15)の蓄冷材封入部(26)の右側壁(26b)における容器本体部(18)に存在する第２側壁部分が、全体に同一平面内に位置しかつ第１平坦部と一定の間隔をおいて対向する第２平坦部と、右側壁(26b)の第２側壁部分を変形させることによって形成されかつ第２平坦部から外方に膨出した複数の凸部(27)(28)とを有している。左側壁(26a)の第１側壁部分の第１平坦部および右側壁(26b)の第２側壁部分の第２平坦部が、冷媒流通管(12)から離隔するとともにアウターフィン(16)とは未接触状態であり、両側壁(26a)(26b)の凸部(27)(28)の膨出端が冷媒流通管(12)のみに接触するとともに、アウターフィン(16)とは未接触状態である。 That is, the 1st flat part in which the 1st side wall part which exists in the container main-body part (18) in the left side wall (26a) of the cool storage material enclosure part (26) of a cool storage material container (15) is located in the same plane as a whole. And a plurality of convex portions (27) (28) formed by deforming the first side wall portion of the left side wall (26a) and bulging outward from the first flat portion, 15) The second side wall portion present in the container main body portion (18) in the right side wall (26b) of the regenerator material enclosing portion (26) is located in the same plane as a whole and has a certain distance from the first flat portion. A plurality of convex portions (27), (28) formed by deforming the second side wall portion of the right side wall (26b) and bulging outward from the second flat portion. have. The first flat part of the first side wall part of the left side wall (26a) and the second flat part of the second side wall part of the right side wall (26b) are separated from the refrigerant flow pipe (12) and the outer fin (16). In the non-contact state, the bulging ends of the convex portions (27) and (28) of the side walls (26a) and (26b) are in contact with only the refrigerant flow pipe (12) and are not in contact with the outer fin (16). It is .
蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)に形成された全凸部(27)(28)のうちの一部の第１の凸部(27)は、全体が上方から下方に向かって風上側に傾斜しており、他の一部の第２の凸部(28)は、上下方向に間隔をおいて形成されかつ上方から下方に向かって風上側に傾斜した上下両傾斜部(28a)(28b)と、上傾斜部(28a)の下端と下傾斜部(28b)の上端とを通じさせる鉛直部(28c)とよりなる。なお、左右両側壁(26a)(26b)の前後両端のうち少なくとも一端の第２凸部(28)には、上傾斜部(28a)または下傾斜部(28b)が設けられていない場合がある。第１凸部(27)は、蓄冷材封入部(26)の左右両側壁(26a)(26b)の上部および下部に形成されている。第２凸部(28)は、上傾斜部(28a)が上側第１凸部(27)とほぼ同一高さ位置に形成されるとともに、下傾斜部(28b)が下側第１凸部(27)とほぼ同一高さ位置に形成され、さらに鉛直部(28c)が左右両側壁(26a)(26b)の高さ方向の中間部に形成されている。したがって、蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)に形成されたすべての凸部(27)(28)に、上側第１凸部(27)、第２凸部(28)の上傾斜部(28a)、下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)からなり、かつ長手方向を同方向に向けるとともに互いに平行となった第１の凸部構成部と、第２凸部(28)の鉛直部(28c)からなり、かつ長手方向を当該第１凸部構成部の長手方向とは異なる方向に向けるとともに互いに平行となった第２の凸部構成部とが、上下に並んで設けられていることになる。すなわち、上側第１凸部(27)、および第２凸部(28)の上傾斜部(28a)が請求項１の第１傾斜部となり、下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)が請求項１の第２傾斜部となっている。 A part of first convex portions (27) of all the convex portions (27) and (28) formed on the left and right side walls (26a) and (26b) of the cold storage material enclosure portion (26) of the cold storage material container (15) ) Is inclined upward on the whole from the upper side to the lower side, and the other second convex portions (28) are formed at intervals in the vertical direction and from the upper side to the lower side. The upper and lower inclined portions (28a) and (28b) are inclined to the windward side, and the vertical portion (28c) is passed through the lower end of the upper inclined portion (28a) and the upper end of the lower inclined portion (28b). In some cases, the upper inclined portion (28a) or the lower inclined portion (28b) may not be provided on the second convex portion (28) at least one of the front and rear ends of the left and right side walls (26a) and (26b). . The 1st convex part (27) is formed in the upper part and the lower part of the right-and-left both side walls (26a) (26b) of the cool storage material enclosure part (26). The second convex portion (28) has an upper inclined portion (28a) formed at substantially the same height as the upper first convex portion (27), and the lower inclined portion (28b) has a lower first convex portion ( 27), and a vertical portion (28c) is formed at an intermediate portion in the height direction of the left and right side walls (26a) and (26b). Therefore, the upper first convex portion (27) is formed on all the convex portions (27) and (28) formed on the left and right side walls (26a) and (26b) of the cold storage material enclosure portion (26) of the cold storage material container (15). The upper convex portion (28a) of the second convex portion (28), the lower first convex portion (27) of the lower convex portion (28), and the lower inclined portion (28b) of the second convex portion (28), and the longitudinal direction thereof being the same direction The first convex part constituting part which is directed and parallel to each other and the vertical part (28c) of the second convex part (28), and the longitudinal direction is different from the longitudinal direction of the first convex part constituting part The second convex component parts that are directed in parallel and parallel to each other are provided side by side. That is, the upper inclined portion (28a) of the upper first convex portion (27) and the second convex portion (28) becomes the first inclined portion of claim 1, and the lower first convex portion (27) and the second convex portion. The lower inclined portion (28b) of the portion (28) is the second inclined portion of claim 1.
蓄冷材封入部(26)の左右両側壁(26a)(26b)のうちの一方の左側壁(26a)の上側第１凸部(27)と、他方の右側壁(26b)の上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)、左側壁(26a)の下側第１凸部(27)と、右側壁(26b)の下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)、左側壁(26a)の第２凸部(28)の上傾斜部(28a)と、右側壁(26b)の上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)、左側壁(26a)の第２凸部(28)の下傾斜部(28b)と、右側壁(26b)の下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)、ならびに左側壁(26a)の第２凸部(28)の鉛直部(28c)と右側壁(26b)の第２凸部(28)の鉛直部(28c)とは、それぞれ冷媒流通管(12)の並び方向側方(左方および右方)から見てずれている。すなわち、左側壁(26a)の上側第１凸部(27)は、右側壁(26b)の隣り合う上側第１凸部(27)どうしの間、または右側壁(26b)の上側第１凸部(27)と第２凸部(28)の上傾斜部(28a)との間に形成され、左側壁(26a)の下側第１凸部(27)は、右側壁(26b)の隣り合う下側第１凸部(27)どうしの間、または右側壁(26b)の下側第１凸部(27)と第２凸部(28)の下傾斜部(28b)との間に形成され、左側壁(26a)の第２凸部(28)の上傾斜部(28a)は、右側壁(26b)の隣り合う上側第１凸部(27)どうしの間、または右側壁(26b)の上側第１凸部(27)と第２凸部(28)の上傾斜部(28a)との間に形成され、左側壁(26a)の第２凸部(28)の下傾斜部(28b)は、右側壁(26b)の隣り合う下側第１凸部(27)どうしの間、または右側壁(26b)の下側第１凸部(27)と第２凸部(28)の下傾斜部(28a)との間に形成され、左側壁(26a)の第２凸部(28)の鉛直部(28c)は右側壁(26b)の第２凸部(28)の隣り合う鉛直部(28c)どうしの間に形成されており、同一水平面内において通風方向に若干ずれて設けられている。 The upper first protrusion (27) of one left side wall (26a) of the left and right side walls (26a) (26b) of the cool storage material enclosure (26) and the upper first protrusion of the other right side wall (26b) The upper inclined part (28a) of the part (27) and the second convex part (28), the lower first convex part (27) of the left side wall (26a), and the lower first convex part of the right side wall (26b) ( 27) and the lower slope part (28b) of the second convex part (28), the upper slope part (28a) of the second convex part (28) of the left side wall (26a), and the upper first convex part of the right side wall (26b). The upper slope part (28a) of the part (27) and the second convex part (28), the lower slope part (28b) of the second convex part (28) of the left side wall (26a), and the lower side of the right side wall (26b) The lower sloped part (28b) of the first convex part (27) and the second convex part (28), and the vertical part (28c) and the right side wall (26b) of the second convex part (28) of the left side wall (26a) The vertical portions (28c) of the second convex portions (28) are displaced from the side (left side and right side) in which the refrigerant flow pipes (12) are arranged. That is, the upper first convex part (27) of the left side wall (26a) is located between the adjacent upper first convex parts (27) of the right side wall (26b) or the upper first convex part of the right side wall (26b). (27) and the upper inclined portion (28a) of the second convex portion (28), and the lower first convex portion (27) of the left side wall (26a) is adjacent to the right side wall (26b). It is formed between the lower first convex portions (27) or between the lower first convex portion (27) of the right side wall (26b) and the lower inclined portion (28b) of the second convex portion (28). The upper inclined portion (28a) of the second convex portion (28) of the left side wall (26a) is located between adjacent upper first convex portions (27) of the right side wall (26b) or between the right side wall (26b). A lower inclined portion (28b) formed between the upper first convex portion (27) and the upper inclined portion (28a) of the second convex portion (28), and the second convex portion (28) of the left side wall (26a). Is between the lower first convex portions (27) adjacent to each other on the right side wall (26b) or the lower slope of the lower first convex portion (27) and the second convex portion (28) of the right side wall (26b). Vertical part of the second convex part (28) of the left side wall (26a) formed between the part (28a) (28c) is formed between adjacent vertical portions (28c) of the second convex portion (28) of the right side wall (26b), and is slightly shifted in the ventilation direction within the same horizontal plane.
なお、蓄冷材容器(15)の蓄冷材封入部(26)の左側壁(26a)における容器本体部(18)に存在する部分の風上側縁部の上端部および同風下側縁部の下端部には、両側壁(26a)(26b)を変形させることによって外方に膨出した略三角形状の第３凸部(29)が形成されているが、右側壁(26b)には第３凸部(26)は形成されていない。左側壁(26a)の第３凸部(26)と、右側壁(26b)の上側第１凸部(27)および下側第１凸部(27)とは、それぞれ冷媒流通管(12)の並び方向側方(左方および右方)から見てずれている。 Note that the upper end of the windward edge and the lower edge of the leeward side edge of the portion of the container body (18) on the left side wall (26a) of the cool storage material enclosure (26) of the cool storage material container (15) The side wall (26a) (26b) is deformed to form a substantially triangular third convex portion (29) bulging outward, but the right side wall (26b) has a third convex portion. The part (26) is not formed. The third convex portion (26) of the left side wall (26a) and the upper first convex portion (27) and the lower first convex portion (27) of the right side wall (26b) are respectively connected to the refrigerant flow pipe (12). It is deviated from the side of the alignment direction (left and right).
蓄冷材容器(15)の容器本体部(18)内に配置された３つのインナーフィン(21)(22)(23)のうち上インナーフィン(21)は、両側壁(26a)(26b)の上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)が形成されている部分とほぼ同一の高さ位置に配置され、中インナーフィン(22)は、両側壁(26a)(26b)の第２凸部(28)の鉛直部(28c)が形成されている部分とほぼ同一の高さ位置に配置され、下インナーフィン(23)は、両側壁(26a)(26b)の下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)が形成されている部分とほぼ同一の高さ位置に配置されている。 Of the three inner fins (21), (22), and (23) arranged in the container body (18) of the cold storage material container (15), the upper inner fin (21) is formed on both side walls (26a) and (26b). The upper inner convex portion (27) and the second convex portion (28) are disposed at substantially the same height as the portion where the upper inclined portion (28a) is formed. (26a) (26b) is arranged at the same height position as the part where the vertical part (28c) of the second convex part (28) is formed, and the lower inner fin (23) is arranged on both side walls (26a) (26b) The lower first convex part (27) and the second convex part (28) are arranged at substantially the same height as the part where the lower inclined part (28b) is formed.
上インナーフィン(21)は、蓄冷材容器(15)の蓄冷材封入部(26)の左側壁(26a)に形成された上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)と同方向にのびる波頂部(21a)、同じく右側壁(26b)に形成された上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)と同方向にのびる波底部(21b)、および波頂部(21a)と波底部(21b)とを連結する連結部(21c)からなる。中インナーフィン(22)は、蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)に形成された第２凸部(28)の鉛直部(28c)と同方向にのびる波頂部(22a)および波底部(22b)、ならびに波頂部(22a)と波底部(22b)とを連結する連結部(22c)からなり、下インナーフィン(23)は、蓄冷材容器(15)の蓄冷材封入部(26)の左側壁(26a)に形成された下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)と同方向にのびる波頂部(23a)、同じく右側壁(26b)に形成された下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)と同方向にのびる波底部(23b)、および波頂部(23a)と波底部(23b)とを連結する連結部(23c)からなる。すべてのインナーフィン(21)(22)(23)における連結部(21c)(22c)(23c)の左右方向の幅は、左側壁(26a)および右側壁(26b)の凸部(27)(28)の膨出端壁内面と、右側壁(26b)および左側壁(26a)の隣り合う凸部(27)(28)間の部分の内面との直線距離とほぼ等しくなっている。そして、すべてのインナーフィン(21)(22)(23)の一部分が、蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)に形成された凸部(27)(28)内に入り込んでおり、複数の波頂部(21a)(22a)(23a)が、左側壁(26a)の凸部(27)(28)の膨出端壁内面、および左側壁(26a)の凸部(27)(28)が形成されていない部分の内面にろう付され、すべてのインナーフィン(21)(22)(23)の複数の波底部(21b)(22b)(23b)が、右側壁(26b)の凸部(27)(28)の膨出端壁内面、および右側壁(26b)の凸部(27)(28)が形成されていない部分の内面にろう付されている。 The upper inner fin (21) is located above the upper first convex portion (27) and the second convex portion (28) formed on the left side wall (26a) of the cool storage material enclosure (26) of the cool storage material container (15). A wave crest portion (21a) extending in the same direction as the inclined portion (28a), an upper first convex portion (27) formed on the right side wall (26b), and an upper inclined portion (28a) of the second convex portion (28); The wave bottom portion (21b) extends in the same direction, and the connection portion (21c) connects the wave peak portion (21a) and the wave bottom portion (21b). The middle inner fin (22) includes a vertical portion (28c) of the second convex portion (28) formed on the left and right side walls (26a) (26b) of the cold storage material enclosure (26) of the cold storage material container (15). It consists of a wave crest portion (22a) and a wave bottom portion (22b) extending in the same direction, and a connecting portion (22c) connecting the wave crest portion (22a) and the wave bottom portion (22b), and the lower inner fin (23) is a cold storage material. In the same direction as the lower first convex portion (27) and the lower inclined portion (28b) of the second convex portion (28) formed on the left side wall (26a) of the regenerator material enclosing portion (26) of the container (15) A wave crest (23b) extending in the same direction as the wave crest (23a), the lower first protrusion (27) formed on the right side wall (26b), and the lower slope (28b) of the second protrusion (28). ), And a connecting part (23c) connecting the wave crest part (23a) and the wave bottom part (23b). The width in the left-right direction of the connecting portions (21c) (22c) (23c) in all the inner fins (21) (22) (23) is the convex portion (27) of the left side wall (26a) and the right side wall (26b) (27) ( The linear distance between the inner surface of the bulging end wall of 28) and the inner surface of the portion between the adjacent convex portions (27), (28) of the right side wall (26b) and the left side wall (26a) is substantially equal. And a part of all the inner fins (21), (22), (23) is a convex part formed on the left and right side walls (26a), (26b) of the cool storage material enclosure part (26) of the cool storage material container (15) ( 27) (28) is embedded, the plurality of wave crests (21a) (22a) (23a), the left wall (26a) convex portion (27) (28) of the bulging end wall inner surface, and the left side wall A plurality of wave bottom portions (21b) (22b) of all inner fins (21) (22) (23) are brazed to the inner surface of the portion where the convex portions (27) (28) of (26a) are not formed. 23b) on the inner surface of the bulging end wall of the convex part (27) (28) of the right side wall (26b) and the inner surface of the part where the convex part (27) (28) of the right side wall (26b) is not formed. It is attached.
なお、左右両側壁(26a)(26b)における凸部(27)(28)の膨出端壁と、隣り合う凸部(27)(28)間の部分において、インナーフィン(21)(22)(23)は変形しており、その結果波頂部(21a)(22a)(23a)の一部が、左側壁(26a)の凸部(27)(28)の膨出端壁内面、および左側壁(26a)の凸部(27)(28)が形成されていない部分の内面にろう付されない場合や、波底部(21b)(22b)(23b)の一部が、右側壁(26b)の凸部(27)(28)の膨出端壁内面、および右側壁(26b)の凸部(27)(28)が形成されていない部分の内面にろう付されない場合がある。 It should be noted that the inner fins (21), (22) in the portion between the bulging end walls of the convex portions (27), (28) in the left and right side walls (26a), (26b) and the adjacent convex portions (27), (28). (23) is deformed, and as a result, a part of the crest (21a) (22a) (23a) is formed on the inner surface of the bulging end wall of the convex part (27) (28) of the left side wall (26a) and the left side. When the wall (26a) is not brazed to the inner surface of the portion where the convex portions (27) (28) are not formed, or part of the wave bottom portions (21b) (22b) (23b) In some cases, the inner surface of the bulging end wall of the convex portions (27) and (28) and the inner surface of the portion of the right side wall (26b) where the convex portions (27) and (28) are not formed may be brazed.
蓄冷材容器(15)の蓄冷材封入部(26)の容器本体部(18)の左右両側壁(26a)(26b)外面における隣り合う２つの凸部(27)(28)の間に、それぞれ上端から下端に向かって漸次低くなりかつ上下両端が開口した複数の凝縮水排水路(31)が間隔をおいて形成されている。なお、左側壁(26a)の凸部(27)(28)および凝縮水排水路(31)と、右側壁(26b)の凸部(27)(28)および凝縮水排水路(31)とは、一部分が重複するが全体に重複しないように、同一水平面内において通風方向に若干ずれて設けられている。なお、凝縮水排水路(34)内を微量の空気も流れる。 Between the two adjacent convex portions (27) and (28) on the outer surfaces of the left and right side walls (26a) and (26b) of the container body portion (18) of the cold storage material enclosure (26) of the cold storage material container (15), respectively A plurality of condensed water drainage channels (31) which are gradually lowered from the upper end to the lower end and open at both upper and lower ends are formed at intervals. The convex portions (27) and (28) of the left side wall (26a) and the condensed water drainage channel (31) and the convex portions (27) and (28) of the right side wall (26b) and the condensed water drainage channel (31) In the same horizontal plane, they are slightly shifted in the ventilation direction so as to partially overlap but not overlap all over. A very small amount of air also flows through the condensed water drainage channel (34).
蓄冷材容器(15)の外方張り出し部(19)は、容器本体部(18)の前側縁部の上端よりも若干下方の部分から一定の長さにわたって設けられており、外方張り出し部(19)の上下方向の長さは容器本体部(18)の上下方向の長さよりも短くなっている。外方張り出し部(19)の上下方向の長さは、蓄冷材容器(15)の上下方向の長さの３０％以下であることが好ましい。蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)における外方張り出し部(19)に存在する部分に、左右両方向に膨らみ、かつ左右方向の寸法が蓄冷材封入部(26)の左右方向の寸法よりも大きくなっている膨張部(19a)が設けられており、膨張部(19a)がアウターフィン(16)の通風方向下端部よりも通風方向外側（通風方向下流側）に位置している。 The outwardly projecting portion (19) of the cold storage material container (15) is provided over a certain length from a portion slightly below the upper end of the front edge of the container body (18), and the outwardly projecting portion ( The vertical length of 19) is shorter than the vertical length of the container body (18). The vertical length of the outwardly projecting portion (19) is preferably 30% or less of the vertical length of the cold storage material container (15). The portion of the cool storage material container (15) that swells in the left and right side walls (26a) and (26b) of the cool storage material enclosure (26) on the outwardly projecting portion (19) expands in both the left and right directions, and the dimensions in the left and right direction are cold storage. An expansion portion (19a) that is larger than the left-right dimension of the material enclosing portion (26) is provided, and the expansion portion (19a) is outside the ventilation direction lower end portion of the outer fin (16) in the ventilation direction ( It is located on the downstream side in the ventilation direction.
蓄冷材容器(15)内へ充填される蓄冷材としては、凝固点が５〜１０℃程度に調整されたパラフィン系潜熱蓄冷材が用いられる。具体的には、ペンタデカン、テトラデカンなどが用いられる。常温（１５〜２５℃）において蓄冷材が液相の場合に、蓄冷材の液面は、蓄冷材封入部(26)の外方張り出し部(19)の上下方向の範囲内に位置していることが好ましい。また、蓄冷材容器(15)の蓄冷材封入部(26)内の内容積に対する封入された蓄冷材の体積の比率である蓄冷材充填率が７０〜９０％であることが好ましい。上インナーフィン(21)の上端は、蓄冷材容器(15)内に封入された蓄冷材の液面よりも上方に位置していることが好ましい。この場合、蓄冷材に冷熱が蓄えられる蓄冷時、および蓄冷材に蓄えられた冷熱を放出する放冷時のいずれにおいても、常に蓄冷材がインナーフィン(21)(22)(23)に接触する。 As the regenerator material filled in the regenerator material container (15), a paraffin-based latent heat regenerator material whose freezing point is adjusted to about 5 to 10 ° C is used. Specifically, pentadecane, tetradecane, or the like is used. When the regenerator material is in a liquid phase at normal temperature (15 to 25 ° C.), the liquid surface of the regenerator material is located within the vertical range of the outwardly projecting portion (19) of the regenerator material enclosing portion (26). It is preferable. Moreover, it is preferable that the cold storage material filling rate which is a ratio of the volume of the enclosed cold storage material with respect to the internal volume in the cold storage material enclosure part (26) of the cold storage material container (15) is 70 to 90%. The upper end of the upper inner fin (21) is preferably located above the liquid level of the cool storage material enclosed in the cool storage material container (15). In this case, the cold storage material always contacts the inner fins (21), (22), and (23) both during cold storage in which cold energy is stored in the cold storage material and in cooling when the cold energy stored in the cold storage material is discharged. .
蓄冷材容器(15)の外方張り出し部(19)の上端部には蓄冷材注入部材(32)が固定されており、蓄冷材は、蓄冷材注入部材(32)を通して蓄冷材封入部(26)内に注入され、蓄冷材注入部材(32)は、蓄熱材封入部(26)内への蓄冷材の注入後に封止されている。 The cool storage material injection member (32) is fixed to the upper end portion of the outwardly projecting portion (19) of the cool storage material container (15), and the cool storage material is passed through the cool storage material injection member (32) and the cool storage material enclosing portion (26 The cool storage material injection member (32) is sealed after the cool storage material is injected into the heat storage material enclosure (26).
以下、上述した蓄冷機能付きエバポレータ(1)の製造方法について説明する。 Hereinafter, the manufacturing method of the evaporator (1) with a cool storage function mentioned above is demonstrated.
まず、両面にろう材層を有するアルミニウムブレージングシートにプレス加工を施すことによって、周縁の帯状部(24a)(25a)と、帯状部(24a)(25a)に囲まれた部分に設けられかつ蓄冷材封入部(26)を形成する外方膨出部(24b)(25b)と、外方膨出部(24b)(25b)の膨出頂壁に設けられた第１および第２凸部(27)(28)を有する容器構成板(24)(25)をつくる。なお、左側の容器構成板(21)における蓄冷材封入部(26)を形成する外方膨出部(24b)(25b)の膨出頂壁には第３凸部(29)も形成しておく。 First, an aluminum brazing sheet having a brazing filler metal layer on both sides is subjected to a pressing process so that it is provided at the peripheral band-shaped portions (24a) and (25a) and the portions surrounded by the band-shaped portions (24a) and (25a) and is stored in cold. The outward bulging portions (24b) and (25b) forming the material enclosing portion (26), and the first and second convex portions provided on the bulging top walls of the outward bulging portions (24b) and (25b) ( 27) Make container component plates (24) and (25) with (28). A third convex portion (29) is also formed on the bulging top wall of the outward bulging portion (24b) (25b) forming the cold storage material enclosing portion (26) in the left container component plate (21). deep.
また、第１および第２ヘッダタンク(2)(3)を構成する部材、冷媒流通管(12)、アウターフィン(16)、サイドプレート(17)、３つのインナーフィン(21)(22)(23)および封止される前の蓄冷材注入部材(32)を用意する。 Further, the members constituting the first and second header tanks (2) and (3), the refrigerant flow pipe (12), the outer fin (16), the side plate (17), the three inner fins (21) and (22) ( 23) and a cold storage material injecting member (32) before sealing.
ついで、２枚の容器構成板(24)(25)を、外方膨出部(24b)(25b)の開口どうしが向き合うとともに、両容器構成板(24)(25)どうしの間にインナーフィン(21)(22)(23)および蓄冷材注入部材(32)が位置するように組み合わせる(図５および図６参照)。ついで、２枚の容器構成板(24)(25)の帯状部(24a)(25a)どうしを重ね合わせて、両容器構成板(24)(25)どうしの間にインナーフィン(21)(22)(23)および蓄冷材注入部材(32)が配置された容器構成板対をつくる。このとき、インナーフィン(21)(22)(23)は、両容器構成板(24)(25)における凸部(27)(28)の膨出端壁と隣り合う凸部(27)(28)間の部分において変形し、すべてのインナーフィン(21)(22)(23)の一部分が凸部(27)(28)内に入り込む。 Next, the two container component plates (24) and (25) are arranged so that the openings of the outward bulges (24b) and (25b) face each other, and the inner fins are disposed between the container component plates (24) and (25). (21) (22) (23) and the regenerator material injection member (32) are combined so as to be positioned (see FIGS. 5 and 6). Next, the strips (24a) and (25a) of the two container component plates (24) and (25) are overlapped, and the inner fins (21) and (22) are sandwiched between the two container component plates (24) and (25). ) (23) and a cold storage material injecting member (32) are formed. At this time, the inner fins (21), (22), (23) are convex portions (27), (28) adjacent to the bulging end walls of the convex portions (27), (28) in the container component plates (24), (25). ), And a part of all the inner fins (21), (22), and (23) enters the convex portions (27) and (28).
ついで、容器構成板対と冷媒流通管(12)とアウターフィン(16)とサイドプレート(17)とを並べて組み合わせ、これらの組み合わせ体を、冷媒流通管(12)の厚み方向に圧縮する力を加えた状態で仮止めし、容器構成板対と冷媒流通管(12)とアウターフィン(16)とサイドプレート(17)との組み合わせ体と、第１および第２ヘッダタンク(2)(3)を構成する部材とを組み合わせる。 Next, the container plate pair, the refrigerant flow pipe (12), the outer fin (16), and the side plate (17) are combined side by side, and a force for compressing these combinations in the thickness direction of the refrigerant flow pipe (12). Temporarily fastened in the added state, a combination of a container plate pair, a refrigerant flow pipe (12), an outer fin (16) and a side plate (17), and first and second header tanks (2) (3) Combined with the members constituting
ついで、容器構成板対と冷媒流通管(12)とアウターフィン(16)とサイドプレート(17)との組み合わせ体、ならびに第１および第２ヘッダタンク(2)(3)を構成する部材を加熱し、容器構成板対の容器構成板(24)(25)の帯状部(24a)(25a)どうし、ならびに容器構成板(24)(25)とインナーフィン(21)(22)(23)および蓄冷材注入部材(32)とをろう付して蓄冷材容器(15)をつくるとともに、第１および第２ヘッダタンク(2)(3)を構成する部材をろう付して第１および第２ヘッダタンク(2)(3)をつくり、さらに蓄冷材容器(15)と冷媒流通管(12)、冷媒流通管(12)とアウターフィン(16)、アウターフィン(16)とサイドプレート(17)、および冷媒流通管(12)と第１および第２ヘッダタンク(2)(3)とをろう付する。 Next, the combination of the container component plate pair, the refrigerant flow pipe (12), the outer fin (16) and the side plate (17), and the members constituting the first and second header tanks (2) and (3) are heated. And the container-shaped plates (24), (25a) of the container-constituting plates (24), (25), and the container-constituting plates (24), (25) and the inner fins (21), (22), (23) and The regenerator material injection member (32) is brazed to make the regenerator material container (15), and the members constituting the first and second header tanks (2) and (3) are brazed to the first and second components. Make the header tank (2) (3), cool storage material container (15) and refrigerant flow pipe (12), refrigerant flow pipe (12) and outer fin (16), outer fin (16) and side plate (17) And the refrigerant flow pipe (12) and the first and second header tanks (2) and (3).
その後、蓄冷材注入部材(32)を通して蓄冷材容器(15)内に所定量の蓄冷剤を注入した後、蓄冷材注入部材(32)を封止する。こうして、蓄冷機能付きエバポレータ(1)が製造される。 Then, after injecting a predetermined amount of cool storage agent into the cool storage material container (15) through the cool storage material injection member (32), the cool storage material injection member (32) is sealed. Thus, the evaporator (1) with a cold storage function is manufactured.
上述した蓄冷機能付きエバポレータ(1)は、車両のエンジンを駆動源とする圧縮機、圧縮機から吐出された冷媒を冷却するコンデンサ（冷媒冷却器）、コンデンサを通過した冷媒を減圧する膨張弁（減圧器）とともに冷凍サイクルを構成し、カーエアコンとして、停車時に圧縮機の駆動源であるエンジンを一時的に停止させる車両、たとえば自動車に搭載される。圧縮機が作動している場合には、圧縮機で圧縮されてコンデンサおよび膨張弁を通過した低圧の気液混相の２相冷媒が、冷媒入口(7)を通って蓄冷機能付きエバポレータ(1)の風下側上ヘッダ部(5)内に入り、全冷媒流通管(12)を通って風上側上ヘッダ部(6)の冷媒出口(8)から流出する。そして、冷媒が冷媒流通管(12)内を流れる間に間隙(14B)を通過する空気と熱交換をし、冷媒は気相となって流出する。 The evaporator with a cold storage function (1) described above includes a compressor that uses a vehicle engine as a drive source, a condenser that cools the refrigerant discharged from the compressor (refrigerant cooler), and an expansion valve that depressurizes the refrigerant that has passed through the condenser ( A refrigeration cycle is configured together with a decompressor, and is mounted as a car air conditioner on a vehicle, such as an automobile, that temporarily stops an engine that is a drive source of a compressor when the vehicle stops. When the compressor is operating, the low-pressure gas-liquid mixed-phase two-phase refrigerant compressed by the compressor and passed through the condenser and the expansion valve passes through the refrigerant inlet (7) and the evaporator with the cold storage function (1) Enters the leeward upper header portion (5) and flows out from the refrigerant outlet (8) of the leeward upper header portion (6) through the entire refrigerant flow pipe (12). Then, the refrigerant exchanges heat with the air passing through the gap (14B) while the refrigerant flows in the refrigerant flow pipe (12), and the refrigerant flows out as a gas phase.
圧縮機の作動時には、冷媒流通管(12)内を流れる冷媒の有する冷熱が、蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)における容器本体部(18)に存在する部分に設けられた凸部(27)(28)(26)の膨出端壁を経て直接蓄冷材容器(15)内の蓄冷材に伝わるとともに、凸部(27)(28)(26)の膨出端壁からインナーフィン(21)(22)(23)を経て蓄冷材容器(15)内の蓄冷材の全体に伝わって蓄冷材に冷熱が蓄えられる。 During the operation of the compressor, the cold heat of the refrigerant flowing in the refrigerant flow pipe (12) is transferred to the container main body portion on the left and right side walls (26a) and (26b) of the cold storage material enclosure (26) of the cold storage material container (15). 18) is directly transmitted to the cold storage material in the cold storage material container (15) through the bulging end walls of the convex portions (27), (28), and (26) provided in the portion existing in (18), and the convex portions (27) (28 ) (26) through the inner fins (21), (22) and (23) from the bulging end wall to the entire cold storage material in the cold storage material container (15), and cold energy is stored in the cold storage material.
圧縮機の停止時には、蓄冷材容器(15)内の蓄冷材に蓄えられた冷熱が、蓄冷材容器(15)の蓄冷材封入部(26)の左右両側壁(26a)(26b)における容器本体部(18)に存在する部分に設けられた凸部(27)(28)(26)の膨出端壁を経て直接冷媒流通管(12)に伝わるとともに、インナーフィン(21)(22)(23)および凸部(27)(28)(26)の膨出端壁を経て冷媒流通管(12)に伝わり、さらに冷媒流通管(12)を通過して当該冷媒流通管(12)における蓄冷材容器(15)とは反対側にろう付されているアウターフィン(16)に伝わる。アウターフィン(16)に伝わった冷熱は、蓄冷材容器(15)が配置されている間隙(14A)の両隣の間隙(14B)を通過する空気に伝えられる。アウターフィン(16)に伝わった冷熱は、蓄冷材容器(15)が配置されている間隙(14A)の両隣の間隙(14B)を通過する空気に伝えられる。したがって、エバポレータ(1)を通過した風の温度が上昇したとしても、当該風は冷却されるので、冷房能力の急激な低下が防止される。 When the compressor is stopped, the cold stored in the cool storage material in the cool storage material container (15) is transferred to the container body on the left and right side walls (26a) and (26b) of the cool storage material enclosure (26) of the cool storage material container (15). It is transmitted directly to the refrigerant flow pipe (12) through the bulging end walls of the convex portions (27), (28) and (26) provided in the portion existing in the portion (18), and the inner fins (21) (22) ( 23) and the protruding portions (27), (28), and (26) through the bulging end walls to the refrigerant flow pipe (12), and further pass through the refrigerant flow pipe (12) to store the cold in the refrigerant flow pipe (12). It is transmitted to the outer fin (16) brazed on the opposite side to the material container (15). The cold heat transmitted to the outer fin (16) is transmitted to the air passing through the gap (14B) adjacent to the gap (14A) in which the cool storage material container (15) is arranged. The cold heat transmitted to the outer fin (16) is transmitted to the air passing through the gap (14B) adjacent to the gap (14A) in which the cool storage material container (15) is arranged. Therefore, even if the temperature of the wind that has passed through the evaporator (1) rises, the wind is cooled, so that a rapid decrease in the cooling capacity is prevented.
図７および図８は蓄冷機能付きエバポレータ(1)の蓄冷材容器(15)に用いられるインナーフィンの変形例を示す。 7 and 8 show a modification of the inner fin used in the cool storage material container (15) of the evaporator (1) with a cool storage function.
図７および図８において、インナーフィン(41)はオフセット状であり、蓄冷材容器(15)の蓄冷材封入部(26)の左側壁(26a)に形成された凸部(27)(28)の膨出端壁の内面と、左側壁(26a)における凸部(27)(28)が形成されていない部分の内面にろう付された波頂部(42a)、同じく右側壁(26b)に形成された凸部(27)(28)の膨出端壁内面と、右側壁(26b)における凸部(27)(28)が形成されていない部分の内面にろう付された波底部(42b)、および波頂部(42a)と波底部(42b)とを連結する連結部(42c)からなる波状帯板(42)が、上下方向に複数並べられるとともに相互に一体に連結されることにより形成され、上下方向に隣り合う２つの波状帯板(42)の波頂部(42a)どうしおよび波底部(42b)どうしが前後方向に位置ずれしているものである。 7 and 8, the inner fin (41) has an offset shape, and the protrusions (27), (28) formed on the left side wall (26a) of the cool storage material enclosure (26) of the cool storage material container (15). The wave crest portion (42a) brazed to the inner surface of the bulging end wall and the inner surface of the left side wall (26a) where the convex portions (27) and (28) are not formed, is also formed on the right side wall (26b). The wave bottom portion (42b) brazed to the inner surface of the bulging end wall of the convex portion (27) (28) and the inner surface of the right side wall (26b) where the convex portion (27) (28) is not formed And a plurality of corrugated strips (42) composed of connecting portions (42c) connecting the wave crest portions (42a) and the wave bottom portions (42b) are arranged in the vertical direction and are integrally connected to each other. The wave crests (42a) and the wave bottoms (42b) of two waved strips (42) adjacent in the vertical direction are displaced in the front-rear direction.
このインナーフィン(41)が、両側壁(26a)(26b)の上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)が形成されている部分とほぼ同一の高さ位置に配置される場合、波状帯板(42)の波頂部(42a)は、左側壁(26a)に形成された上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)と同方向にのびたものとなり、同じく波底部(42b)は、右側壁(26b)に形成された上側第１凸部(27)および第２凸部(28)の上傾斜部(28a)と同方向にのびたものとなる。また、インナーフィン(41)が両側壁(26a)(26b)の第２凸部(28)の鉛直部(28c)が形成されている部分とほぼ同一の高さ位置に配置される場合、波状帯板(42)の波頂部(42a)は、左側壁(26a)に形成された第２凸部(28)の鉛直部(28c)と同方向にのびたものとなり、同じく波底部(42b)は、右側壁(26b)に形成された第２凸部(28)の鉛直部(28c)と同方向にのびたものとなる。さらに、インナーフィン(41)が、両側壁(26a)(26b)の下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)が形成されている部分とほぼ同一の高さ位置に配置される場合、波状帯板(42)の波頂部(42a)は、左側壁(26a)に形成された下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)と同方向にのびたものとなり、同じく波底部(42b)は、右側壁(26b)に形成された下側第１凸部(27)および第２凸部(28)の下傾斜部(28b)と同方向にのびたものとなる。そして、すべてのインナーフィン(41)の波状帯板(42)の複数の波頂部(42a)が、左側壁(26a)の凸部(27)(28)の膨出端壁内面、および左側壁(26a)の凸部(27)(28)が形成されていない部分の内面にろう付され、すべてのインナーフィン(41)の波状帯板(42)の複数の波底部(42b)が、右側壁(26b)の凸部(27)(28)の膨出端壁内面、および右側壁(26b)の凸部(27)(28)が形成されていない部分の内面にろう付されている。 The inner fin (41) is substantially the same as the portion where the upper first convex portion (27) of the both side walls (26a) and (26b) and the upper inclined portion (28a) of the second convex portion (28) are formed. When arranged at the height position, the wave crest (42a) of the corrugated strip (42) is above the upper first convex portion (27) and the second convex portion (28) formed on the left side wall (26a). The wave bottom portion (42b) extends in the same direction as the inclined portion (28a), and the upper inclined portion of the upper first convex portion (27) and the second convex portion (28) formed on the right side wall (26b). It extends in the same direction as (28a). In addition, when the inner fin (41) is disposed at substantially the same height as the portion where the vertical portion (28c) of the second convex portion (28) of the side walls (26a) (26b) is formed, The crest portion (42a) of the strip (42) extends in the same direction as the vertical portion (28c) of the second convex portion (28) formed on the left side wall (26a), and the wave bottom portion (42b) The second protrusion (28) formed on the right side wall (26b) extends in the same direction as the vertical portion (28c). Further, the inner fin (41) is substantially the same as the portion where the lower first convex part (27) of the both side walls (26a) and (26b) and the lower inclined part (28b) of the second convex part (28) are formed. When arranged at the same height position, the wave crest (42a) of the corrugated strip (42) has a lower first protrusion (27) and a second protrusion (28) formed on the left side wall (26a). ) Extending in the same direction as the lower inclined portion (28b), and the wave bottom portion (42b) is similarly formed on the lower first convex portion (27) and the second convex portion (28) formed on the right side wall (26b). It extends in the same direction as the lower inclined portion (28b). The plurality of crests (42a) of the corrugated strips (42) of all the inner fins (41) are the inner surfaces of the bulging end walls of the protrusions (27) (28) of the left side wall (26a), and the left side wall. The plurality of wave bottom portions (42b) of the corrugated strips (42) of all inner fins (41) are brazed to the inner surface of the portion where the convex portions (27) (28) of (26a) are not formed. The bulging end wall inner surfaces of the projections (27) and (28) of the wall (26b) and the inner surfaces of the portions of the right wall (26b) where the projections (27) and (28) are not formed are brazed.
なお、左右両側壁(26a)(26b)における凸部(27)(28)の膨出端壁と、隣り合う凸部(27)(28)間の部分において、インナーフィン(41)は変形し、インナーフィン(41)の一部分が凸部(27)(28)内に入り込む。その結果、波頂部(42a)の一部が、左側壁(26a)の凸部(27)(28)の膨出端壁内面、および左側壁(26a)の凸部(27)(28)が形成されていない部分の内面にろう付されない場合や、波底部(42b)の一部が、右側壁(26b)の凸部(27)(28)の膨出端壁内面、および右側壁(26b)の凸部(27)(28)が形成されていない部分の内面にろう付されない場合がある。 The inner fin (41) is deformed at the portion between the bulging end walls of the convex portions (27) and (28) on the left and right side walls (26a) and (26b) and the adjacent convex portions (27) and (28). Then, a part of the inner fin (41) enters the convex portions (27) (28). As a result, a part of the crest portion (42a) is formed by the inner surface of the bulging end wall of the convex portions (27) and (28) of the left side wall (26a) and the convex portions (27) and (28) of the left side wall (26a). When not brazed to the inner surface of the part that is not formed, a part of the wave bottom part (42b) is the bulging end wall inner surface of the convex part (27) (28) of the right side wall (26b) and the right side wall (26b) ) May not be brazed to the inner surface of the portion where the convex portions (27) and (28) are not formed.
この発明による蓄冷機能付きエバポレータは、停車時に圧縮機の駆動源であるエンジンを一時的に停止させる車両のカーエアコンを構成する冷凍サイクルに好適に用いられる。 The evaporator with a cold storage function according to the present invention is suitably used in a refrigeration cycle constituting a car air conditioner for a vehicle that temporarily stops an engine that is a drive source of a compressor when the vehicle is stopped.
(1)：蓄冷機能付きエバポレータ
(4)：熱交換コア部
(12)：冷媒流通管
(14A)(14B)：間隙
(15)：蓄冷材容器
(16)：アウターフィン
(21)(22)(23)：コルゲート状インナーフィン
(21a)(22a)(23a)：波頂部
(21b)(22b)(23b)：波底部
(21c)(22c)(23c)：連結部
(26)：蓄冷材封入部
(26a)(26b)：側壁
(27)：第１凸部(第１の凸部構成部）
(28)：第２凸部
(28a)(28b)：傾斜部(第１の凸部構成部）
(28c)：鉛直部(第２の凸部構成部)
(41)：オフセット状インナーフィン
(42)：波状帯板
(42a)：波頂部
(42b)：波底部
(42c)：連結部
(1): Evaporator with cool storage function
(4): Heat exchange core
(12): Refrigerant distribution pipe
(14A) (14B): Gap
(15): Cold storage container
(16): Outer fin
(21) (22) (23): Corrugated inner fin
(21a) (22a) (23a): Wave peak
(21b) (22b) (23b): Wave bottom
(21c) (22c) (23c): Connection part
(26): Cold storage material enclosure
(26a) (26b): Side wall
(27): First convex part (first convex part constituting part)
(28): Second convex part
(28a) (28b): Inclined part (first convex component part)
(28c): Vertical part (second convex component part)
(41): Offset inner fin
(42): Wavy strip
(42a): Wave peak
(42b): Wave bottom
(42c): Connection part
Claims (3)
蓄冷材封入部の第１側壁部分および第２側壁部分に形成された第１傾斜部どうし、第２傾斜部どうしおよび鉛直部どうしがそれぞれ冷媒流通管の並び方向側方から見てずれており、第１側壁部分の第１傾斜部が第２側壁部分の隣り合う２つの第１傾斜部どうしの間に形成され、第１側壁部分の第２傾斜部が第２側壁部分の隣り合う２つの第２傾斜部どうしの間に形成され、第１側壁部分の鉛直部が第２側壁部分の隣り合う２つの鉛直部どうしの間に形成されており、
蓄冷材容器内に、上部に位置する上インナーフィンと、下部に位置する下インナーフィンと、高さ方向中間部に位置する中インナーフィンとが配置され、上インナーフィンが、第１側壁部分の凸部の第１傾斜部と同方向にのびる波頂部、第２側壁部分の凸部の第１傾斜部と同方向にのびる波底部、および波頂部と波底部とを連結する連結部からなり、下インナーフィンが、第１側壁部分の凸部の第２傾斜部と同方向にのびる波頂部、第２側壁部分の凸部の第２傾斜部と同方向にのびる波底部、および波頂部と波底部とを連結する連結部からなり、中インナーフィンが、第１側壁部分の凸部の鉛直部と同方向にのびる波頂部、第２側壁部分の凸部の鉛直部と同方向にのびる波底部、および波頂部と波底部とを連結する連結部からなり、すべてのインナーフィンの一部分が、第１側壁部分および第２側壁部分の凸部内に入り込んでおり、インナーフィンが、蓄冷材容器の第１側壁部分における凸部の膨出端壁の内面、および第１側壁部分における凸部が形成されていない第１平坦部の内面と、蓄冷材容器の第２側壁部分における凸部が形成されていない第２平坦部の内面、および第２側壁部分における凸部の膨出端壁の内面とに接合されている蓄冷機能付きエバポレータ。 A plurality of flat refrigerant flow pipes whose longitudinal direction faces the up-down direction and whose width direction faces the ventilation direction are arranged in parallel in the left-right direction at the heat exchange core portion, and adjacent refrigerant flow pipes A regenerator material container in which a regenerator material is sealed is disposed in a part and a plurality of the gaps, and is brazed to the refrigerant flow pipe, and the remaining gaps are respectively formed. Outer fins are placed and brazed to the refrigerant flow pipe, and outer fins are placed in at least one of the gaps on both sides of the gap where the cool storage material container is placed, and the cool storage material container is filled with the cool storage material A regenerator material is contained in the regenerator material enclosing unit, and the regenerator material container has a container body portion located within the range of the ventilation direction of the heat exchange core unit, and the regenerator material of the regenerator material container the left and right side walls of the enclosure Among the first side wall portion present in the container body in one of the side walls, a first flat portion positioned in the same plane throughout, is formed by deforming the first side wall portion and a first planar portion A plurality of convex portions bulging outward, and the second side wall portion present in the container body portion on the other side wall of the left and right side walls of the cool storage material enclosure of the cool storage material container is the same throughout A plurality of second flat portions located in a plane and opposed to the first flat portion at a predetermined interval; and formed by deforming the second side wall portion and bulging outward from the second flat portion. The first flat portion of the first side wall portion and the second flat portion of the second side wall portion are separated from the refrigerant flow pipe and are not in contact with the outer fin, and the first side wall portion and The bulging end of the convex part of the second side wall part is And the outer fins are not in contact with each other, and all the convex portions are formed on the upper portions of the first side wall portion and the second side wall portion, and are inclined to the windward side from the upper side to the lower side and A plurality of first inclined portions that are parallel to each other, and a plurality of first inclined portions that are formed below the first side wall portion and the second side wall portion and that are inclined inward toward the windward side from above and parallel to each other. The two inclined portions are formed in the intermediate portion in the height direction of the first side wall portion and the second side wall portion, and connect the lower ends of some of the first inclined portions and the upper ends of some of the second inclined portions and And an evaporator with a cool storage function in which inner fins are arranged in a cool storage material container,
The first inclined portions formed on the first side wall portion and the second side wall portion of the regenerator material enclosing portion, the second inclined portions and the vertical portions are shifted from each other when viewed from the side of the refrigerant distribution pipe, The first inclined portion of the first sidewall portion is formed between two adjacent first inclined portions of the second sidewall portion, and the second inclined portion of the first sidewall portion is adjacent to the second second inclined portion of the second sidewall portion. Formed between two inclined portions, the vertical portion of the first side wall portion is formed between two adjacent vertical portions of the second side wall portion,
In the cool storage material container, an upper inner fin located at the upper portion, a lower inner fin located at the lower portion, and a middle inner fin located at the intermediate portion in the height direction are disposed, and the upper inner fin is disposed on the first side wall portion. The wave crest portion extending in the same direction as the first inclined portion of the convex portion, the wave bottom portion extending in the same direction as the first inclined portion of the convex portion of the second side wall portion, and a connecting portion connecting the wave crest portion and the wave bottom portion, The lower inner fin has a wave crest extending in the same direction as the second inclined portion of the convex portion of the first side wall portion, a wave bottom portion extending in the same direction as the second inclined portion of the convex portion of the second side wall portion, and the wave crest portion and the wave The wave bottom part which consists of a connection part which connects the bottom part, and the inner inner fin extends in the same direction as the vertical part of the convex part of the first side wall part, and the vertical part of the convex part of the second side wall part. , and it consists of connecting portion for connecting the wave crest portions and the wave trough portion, all Portion of N'nafin is, and enters the first side wall portion and the convex portion of the second side wall portion, the inner fins, the inner surface of the bulging end wall of the convex portion of the first side wall portion of the cold storage container, and the first side wall portion The inner surface of the first flat part in which no convex part is formed, the inner surface of the second flat part in which the convex part in the second side wall portion of the cool storage material container is not formed, and the bulge of the convex part in the second side wall part An evaporator with a cold storage function joined to the inner surface of the end wall.
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