JP5315094B2 - Evaporator with cool storage function - Google Patents
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- JP5315094B2 JP5315094B2 JP2009052871A JP2009052871A JP5315094B2 JP 5315094 B2 JP5315094 B2 JP 5315094B2 JP 2009052871 A JP2009052871 A JP 2009052871A JP 2009052871 A JP2009052871 A JP 2009052871A JP 5315094 B2 JP5315094 B2 JP 5315094B2
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Description
この発明は、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に用いられる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 used in a car air conditioner of a vehicle that temporarily stops an engine that is a drive source of a compressor when the vehicle is stopped.
この明細書および特許請求の範囲において、通風方向下流側（図１〜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する。 In this specification and claims, the downstream side in the ventilation direction (the direction indicated by the arrow X in FIGS. 1 to 4) is the front, and the opposite side is the rear.
近年、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。 In recent years, automobiles have been proposed that automatically stop the engine when the vehicle stops, such as when waiting for a signal, for the purpose of environmental protection or improvement in automobile fuel efficiency.
ところで、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。 By the way, in a normal car air conditioner, when the engine is stopped, the compressor using the engine as a driving source stops, so 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利用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 a problem, the evaporator is provided with a cold storage function, and when the engine stops and the compressor stops, the interior of the vehicle can be cooled using the cold energy stored in the evaporator. It is considered.
蓄冷機能付きエバポレータとして、互いに間隔をおいて配置された１対の冷媒用ヘッダ部と、両冷媒用ヘッダ部間に、幅方向を前後方向に向けるとともに冷媒用ヘッダ部の長さ方向に間隔をおいて配置され、かつ両端部がそれぞれ両冷媒用ヘッダ部に通じさせられた複数の扁平状冷媒流通管と、幅方向を前後方向に向けて配置されるとともに冷媒流通管の片面に固定状に設けられ、かつ内部に蓄冷材が封入された中空状の蓄冷材容器とを備えており、蓄冷材容器の厚み方向の寸法が全体に等しくなされ、冷媒流通管および蓄冷材容器よりなる複数の組が間隔をおいて配置され、冷媒流通管および蓄冷材容器よりなる組の隣り合うものどうしの間の部分が通風間隙となされ、通風間隙にフィンが配置されて冷媒流通管および蓄冷材容器に接合されているものが提案されている（特許文献１参照）。 As an evaporator with a cold storage function, a pair of refrigerant headers arranged at a distance from each other, and a gap between the two refrigerant headers, with the width direction facing in the front-rear direction and the length of the refrigerant header part in the length direction. And a plurality of flat refrigerant flow pipes whose both ends are respectively connected to both refrigerant header parts, and are arranged with the width direction directed in the front-rear direction and fixed to one side of the refrigerant flow pipe And a hollow regenerator container in which a regenerator material is enclosed, and a plurality of sets of refrigerant circulation pipes and a regenerator container are formed in which the dimensions in the thickness direction of the regenerator container are equal throughout. Are arranged at intervals, and a portion between adjacent sets of the refrigerant circulation pipe and the cool storage material container is formed as a ventilation gap, and fins are arranged in the ventilation gap to join the refrigerant circulation pipe and the cold storage material container. The And those which have been proposed (see Patent Document 1).
特許文献１記載の蓄冷機能付きエバポレータによれば、冷媒流通管を流れる低温の冷媒により蓄冷材容器内の蓄冷材に冷熱が蓄えられるようになっている。
According to the evaporator with a cold storage function described in
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においては、蓄冷性能を向上させる目的で蓄冷材容器に封入される蓄冷材の量を多くしようとすると、蓄冷材容器および冷媒流通管の長さを長くするとともに、蓄冷材容器の厚み方向の寸法である容器高さを全体に高くする必要がある。しかしながら、蓄冷材容器および冷媒流通管部の長さを長くすると、エバポレータの熱交換コア部が大型化し、重量が大きくなったり、省スペース性が損なわれたりするという問題がある。また、熱交換コア部の寸法を変えないで蓄冷材容器全体の容器高さを全体に高くすると、通風間隙の空気の通過面積が小さくなり、通気抵抗が上昇するという問題がある。
However, in the evaporator with a cool storage function described in
この発明の目的は、上記問題を解決し、特許文献１記載の蓄冷機能付きエバポレータに比べて小型軽量化を図ることができるとともに、通気抵抗の上昇を抑制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 cool storage function that can solve the above problems and can be reduced in size and weight as compared with the evaporator with a cool storage function described in
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)幅方向を前後方向に向けるとともに互いに間隔をおいて配置された扁平状冷媒流通管部と、幅方向を前後方向に向けて配置されるとともに冷媒流通管部の片面に接触させられた扁平状蓄冷材容器とを備え、冷媒流通管部の上下両端部が、上下方向に間隔をおくとともに、長手方向を左右方向に向けて配置された上下のヘッダタンクに通じさせられている蓄冷機能付きエバポレータであって、
蓄冷材容器の前後両側部分のうちのいずれか一方に、蓄冷材容器の厚み方向の寸法である容器高さが他の部分の容器高さよりも高くなった内容積増大部が設けられており、蓄冷材容器の左右方向から見た輪郭が縦長の長方形状であり、蓄冷材容器の前後両側部分のうちのいずれか一方が、冷媒流通管部よりも前後方向外側に突出させられ、蓄冷材容器における冷媒流通管部よりも前後方向外側に突出した部分に内容積増大部が設けられ、蓄冷材容器の内容積増大部の上下両端部に、内容積増大部を除いた部分の上下両端よりも上下方向外側に突出した突出部が、蓄冷材容器の長方形状の輪郭から突出するように設けられ、内容積増大部の突出部の上下方向外端がヘッダタンクの全高さの範囲内に位置し、すべての蓄冷材容器の内部が、内容積増大部の上下方向外側への突出部において通じさせられている蓄冷機能付きエバポレータ。
1) Flat refrigerant flow pipe parts arranged in the front-rear direction and spaced apart from each other, and flat refrigerant pipes arranged in the width direction in the front-rear direction and in contact with one side of the refrigerant flow pipe part With a cold storage function , the upper and lower end portions of the refrigerant flow pipe portion are spaced apart in the vertical direction and communicated with the upper and lower header tanks arranged with the longitudinal direction facing the left and right direction. An evaporator,
Either one of the front and rear side portions of the regenerator container is provided with an internal volume increasing portion in which the container height, which is the dimension in the thickness direction of the regenerator container, is higher than the container height of the other part , The contour of the cool storage material container as viewed from the left-right direction is a vertically long rectangular shape, and either one of the front and rear side portions of the cool storage material container is protruded outward in the front-rear direction from the refrigerant flow pipe portion, and the cool storage material container The inner volume increasing portion is provided in a portion protruding outward in the front-rear direction from the refrigerant flow pipe portion in the upper and lower ends of the inner volume increasing portion of the cold storage material container than the upper and lower ends of the portion excluding the inner volume increasing portion. A protruding portion protruding outward in the vertical direction is provided so as to protrude from the rectangular outline of the cool storage material container, and the vertical outer end of the protruding portion of the internal volume increasing portion is located within the total height of the header tank. , The inner volume of all the regenerator containers Vertically outside to be that the evaporator with a cool storage function which is vented at the protruding portion of the voluminous.
2)冷媒流通管部および蓄冷材容器よりなる複数の組が間隔をおいて配置されており、冷媒流通管部および蓄冷材容器よりなる組の隣り合うものどうしの間の部分が通風間隙となされ、通風間隙にフィンが配置されて冷媒流通管部および蓄冷材容器に接合されている上記1)記載の蓄冷機能付きエバポレータ。 2) A plurality of sets composed of the refrigerant flow pipe part and the cold storage material container are arranged at intervals, and a portion between adjacent sets of the refrigerant flow pipe part and the cold storage material container serves as a ventilation gap. The evaporator with a cool storage function according to the above 1), wherein fins are arranged in the ventilation gap and joined to the refrigerant flow pipe portion and the cool storage material container.
3)フィンの前後両側部分のうち、蓄冷材容器の内容積増大部が設けられた側の部分が、冷媒流通管部よりも前後方向外側に突出させられ、蓄冷材容器における冷媒流通管部よりも前後方向外側に突出した部分に内容積増大部が設けられ、蓄冷材容器の内容積増大部の両面にフィンが接合されている上記2)記載の蓄冷機能付きエバポレータ。 3) Of the front and rear side portions of the fin, the portion on the side where the internal volume increasing portion of the cold storage material container is provided is projected outward in the front-rear direction from the refrigerant flow pipe portion, and from the refrigerant flow pipe portion in the cold storage material container The evaporator with a cool storage function according to 2) above, wherein an inner volume increasing portion is provided in a portion protruding outward in the front-rear direction, and fins are joined to both surfaces of the inner volume increasing portion of the cool storage material container.
4)蓄冷材容器およびフィンの前側部分が冷媒流通管部よりも前方に突出させられ、蓄冷材容器における冷媒流通管部よりも前方に突出した部分に内容積増大部が設けられている上記3)記載の蓄冷機能付きエバポレータ。 4) cold storage container and the front portion of the fin is protruded forward from the refrigerant flow tube portion, the 3 internal volume increases at a portion that protrudes forward from the refrigerant flow tube portion is provided in the cold storage container ) Evaporator with cool storage function.
5)蓄冷材容器が、上下のヘッダタンクの前側縁よりも後側に設けられて冷媒流通管部にろう付された容器本体部と、容器本体部の前側縁に連なって設けられて上下のヘッダタンクの前側縁よりも前側に位置する内容積増大部とよりなり、内容積増大部における蓄冷材容器の厚み方向の寸法である容器高さが、容器本体部における蓄冷材容器の厚み方向の寸法である容器高さよりも高くなっている上記4)記載の蓄冷機能付きエバポレータ。 5) A regenerator container is provided on the rear side of the front edge of the upper and lower header tanks and brazed to the refrigerant flow pipe part, and connected to the front side edge of the container main body part. It is made up of an inner volume increasing portion located in front of the front edge of the header tank, and the container height which is the dimension in the thickness direction of the cold storage material container in the inner volume increasing portion is the thickness direction of the cold storage material container in the container main body portion The evaporator with a cold storage function according to 4) above, which is higher than a container height which is a dimension .
上記1)および2)の蓄冷機能付きエバポレータによれば、蓄冷材容器の前後両側部分のうちのいずれか一方に、蓄冷材容器の厚み方向の寸法である容器高さが他の部分の容器高さよりも高くなった内容積増大部が設けられているので、蓄冷材容器の容器高さが全体に同一の場合に比べて、蓄冷材容器および冷媒流通管部の長さを長くしたり、蓄冷材容器の厚み方向の寸法である容器高さを全体に高くしたりすることなく、蓄冷材容器に封入される蓄冷材の量を多くすることができる。したがって、蓄冷機能付きエバポレータに比べて小型軽量化を図ることができる。しかも、上記3)の蓄冷機能付きエバポレータのように、フィンの前後両側部分のうち、蓄冷材容器の内容積増大部が設けられた側の部分が、冷媒流通管部よりも前後方向外側に突出させられ、蓄冷材容器における冷媒流通管部よりも前後方向外側に突出した部分に内容積増大部が設けられていると、内容積増大部を設けることに起因する通風間隙の面積の減少を抑制することができ、熱交換コア部の寸法を変えない場合であっても、通気抵抗の上昇を抑制することができる。 また、蓄冷材容器の内部どうしが内容積増大部において連通させられているので、いずれか１つの蓄冷材容器の内容積増大部に蓄冷材充填口を形成するとともに、いずれか１つの蓄冷材容器の内容積増大部に空気抜き口を形成しておくことにより、内部どうしが連通させられている蓄冷材容器内への蓄冷材の封入作業が簡単になる。 According to the evaporator with a cold storage function of 1) and 2) above, the container height, which is the dimension in the thickness direction of the cold storage material container, is the height of the other part of the container. Since the internal volume increasing part that is higher than the above is provided, the length of the cold storage material container and the refrigerant flow pipe part can be increased or the cold storage compared with the case where the container height of the cold storage material container is the same throughout. The amount of the regenerator material enclosed in the regenerator material container can be increased without increasing the overall container height, which is the dimension in the thickness direction of the material container. Therefore, it is possible to achieve a reduction in size and weight as compared with an evaporator with a cold storage function. In addition, as in the evaporator with a cool storage function in 3) above, the portion on the side where the internal volume increasing portion of the cool storage material container is provided out of the front and rear side portions of the fin protrudes outward in the front-rear direction from the refrigerant flow pipe portion. If the internal volume increasing part is provided in the portion that protrudes outward in the front-rear direction from the refrigerant flow pipe part in the cool storage material container, the reduction in the area of the ventilation gap due to the provision of the internal volume increasing part is suppressed. Even if it is a case where the dimension of a heat exchange core part is not changed, the raise of ventilation resistance can be suppressed. Moreover, since the insides of the regenerator containers are communicated with each other in the inner volume increasing part, a regenerator filling port is formed in the inner volume increasing part of any one of the regenerator containers, and any one regenerator container is formed. By forming an air vent in the increased internal volume portion, the operation of enclosing the regenerator material in the regenerator container in which the interiors are in communication with each other is simplified .
上記3)の蓄冷機能付きエバポレータによれば、フィンの前後両側部分のうち、蓄冷材容器の内容積増大部が設けられた側の部分が、冷媒流通管部よりも前後方向外側に突出させられ、蓄冷材容器における冷媒流通管部よりも前後方向外側に突出した部分に内容積増大部が設けられ、蓄冷材容器の内容積増大部の両面にフィンが接合されているので、蓄冷材容器の容器高さが全体に同一の場合に比べて、蓄冷材容器および冷媒流通管部の長さを長くしたり、蓄冷材容器の厚み方向の寸法である容器高さを全体に高くしたりすることなく、蓄冷材容器に封入される蓄冷材の量を多くすることができる。したがって、蓄冷機能付きエバポレータに比べて小型軽量化を図ることができる。しかも、内容積増大部を設けることに起因する通風間隙の面積の減少を抑制することができ、熱交換コア部の寸法を変えない場合であっても、通気抵抗の上昇を抑制することができる。 According to the evaporator with a cold storage function of 3) above, the portion on the side where the internal volume increasing portion of the cold storage material container is provided is protruded outward in the front-rear direction from the refrigerant circulation pipe portion among the front and rear side portions of the fin. In the cool storage material container, the inner volume increasing portion is provided in a portion protruding outward in the front-rear direction from the refrigerant circulation pipe portion, and the fins are joined to both surfaces of the inner volume increasing portion of the cool storage material container. Compared to the case where the container height is the same as a whole, the length of the regenerator container and the refrigerant flow pipe part is increased, or the container height, which is the dimension in the thickness direction of the regenerator container, is increased overall. The amount of the cool storage material enclosed in the cool storage material container can be increased. Therefore, it is possible to achieve a reduction in size and weight as compared with an evaporator with a cold storage function. Moreover, it is possible to suppress a decrease in the area of the ventilation gap due to the provision of the internal volume increasing portion, and it is possible to suppress an increase in ventilation resistance even when the dimensions of the heat exchange core portion are not changed. .
また、エンジンが停止して圧縮機が停止した際に、蓄冷材容器の内容積増大部内の蓄冷材の有する冷熱が、内容積増大部の両側面から内容積増大部の両側面にろう付されているフィンを介して通風間隙を通過する空気に伝えられるので、放冷性能が向上する。 Further, when the engine is stopped and the compressor is stopped, the cold heat of the cold storage material in the internal volume increasing portion of the cold storage material container is brazed from both side surfaces of the internal volume increasing portion to both side surfaces of the internal volume increasing portion. Since the air is transmitted to the air passing through the ventilation gap through the fins, the cooling performance is improved.
上記4)の蓄冷機能付きエバポレータによれば、通風間隙を流れてくる空気の温度が低くなっている部分に、多くの蓄冷材が入れられている内容積増大部が存在することになるので、蓄冷材を効率良く冷却することができ、蓄冷性能が向上する。 According to the evaporator with a cold storage function of 4) above, there is an internal volume increasing portion in which a lot of cold storage material is placed in the portion where the temperature of the air flowing through the ventilation gap is low. The cold storage material can be efficiently cooled, and the cold storage performance is improved .
以下、この発明の実施形態を、図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
以下の説明において、前方から後方を見た際の上下、左右、すなわち図１の上下、左右を上下、左右というものとする。 In the following description, it is assumed that the upper and lower sides and the left and right sides in FIG.
また、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。 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および図２において、蓄冷機能付きエバポレータ(1)は、上下方向に間隔をおいて配置された左右方向にのびるアルミニウム製第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 and FIG. 2, the evaporator with a cold storage function (1) includes an aluminum first header tank (2) and an aluminum second header tank (3) extending in the horizontal direction and spaced apart in the vertical direction. And a heat exchange core portion (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）に位置する冷媒入口ヘッダ部(5)（冷媒用ヘッダ部）と、後側（通風方向上流側）に位置しかつ冷媒入口ヘッダ部(5)に一体化された冷媒出口ヘッダ部(6)（冷媒用ヘッダ部）とを備えている。冷媒入口ヘッダ部(5)の右端部に冷媒入口(7)が設けられ、冷媒出口ヘッダ部(6)の右端部に冷媒出口(8)が設けられている。第２ヘッダタンク(3)は、前側に位置する第１中間ヘッダ部(9)と、後側に位置しかつ第１中間ヘッダ部(9)に一体化された第２中間ヘッダ部(11)とを備えている。第２ヘッダタンク(3)の第１中間ヘッダ部(9)内と第２中間ヘッダ部(11)内とは、両中間ヘッダ部(9)(11)の右端部に跨って接合され、かつ内部が通路となった連通部材(12)を介して通じさせられている。 The first header tank (2) has a refrigerant inlet header portion (5) (refrigerant header portion) located on the front side (downstream side in the ventilation direction) and a refrigerant inlet header portion located on the rear side (upstream side in the ventilation direction). A refrigerant outlet header portion (6) (refrigerant header portion) integrated with (5). A refrigerant inlet (7) is provided at the right end of the refrigerant inlet header (5), and a refrigerant outlet (8) is provided at the right end of the refrigerant outlet header (6). The second header tank (3) includes a first intermediate header portion (9) located on the front side and a second intermediate header portion (11) located on the rear side and integrated with the first intermediate header portion (9). And. The first intermediate header portion (9) and the second intermediate header portion (11) of the second header tank (3) are joined across the right end portions of the intermediate header portions (9) and (11), and The inside is communicated via a communication member (12) that forms a passage.
図１〜図４に示すように、熱交換コア部(4)には、幅方向を前後方向に向けるとともに、前後方向に間隔をおいて配置された複数、ここでは２つのアルミニウム押出形材製扁平状冷媒流通管(13)（冷媒流通管部）、および幅方向を前後方向に向けるとともに、前後両冷媒流通管(13)の片面、ここでは左側面に跨るように接触させられて両冷媒流通管(13)にろう付され、かつ内部に蓄冷材（図示略）が封入されたアルミニウム製扁平状蓄冷材容器(14)よりなる複数の組(15)が左右方向に間隔をおいて配置されている。前側の冷媒流通管(13)の上端部は冷媒入口ヘッダ部(5)に接続されるとともに、同下端部は第１中間ヘッダ部(9)に接続されている。また、後側の冷媒流通管(13)の上端部は冷媒出口ヘッダ部(6)に接続されるとともに、同下端部は第２中間ヘッダ部(11)に接続されている。冷媒流通管(13)および蓄冷材容器(14)よりなる組(15)の隣り合うものどうしの間の間隙は通風間隙(16)となされ、通風間隙(16)にアルミニウム製コルゲートフィン(17)が配置されて冷媒流通管(13)および蓄冷材容器(14)にろう付されている。また、冷媒流通管(13)および蓄冷材容器(14)よりなる組(15)の左右両端に位置するものの外側にもアルミニウム製コルゲートフィン(17)が配置されており、右端のコルゲートフィン(17)は前後両冷媒流通管(13)に跨ってろう付され、左端のコルゲートフィン(17)は蓄冷材容器(14)にろう付されている。左右両端のコルゲートフィン(17)の外側にはアルミニウム製サイドプレート(18)が配置されてコルゲートフィン(17)にろう付されている。 As shown in FIG. 1 to FIG. 4, the heat exchange core part (4) is made of a plurality of, two aluminum extruded sections, with the width direction facing in the front-rear direction and spaced in the front-rear direction. The flat refrigerant flow pipe (13) (refrigerant flow pipe section) and the width direction thereof are directed in the front-rear direction, and both refrigerants are brought into contact across one side of the front and rear refrigerant flow pipes (13), here the left side. A plurality of sets (15) of flat aluminum cold storage containers (14) brazed to the flow pipe (13) and filled with a cold storage material (not shown) are arranged at intervals in the left-right direction. Has been. The upper end of the front refrigerant flow pipe (13) is connected to the refrigerant inlet header (5), and the lower end is connected to the first intermediate header (9). The upper end of the rear refrigerant flow pipe (13) is connected to the refrigerant outlet header (6), and the lower end is connected to the second intermediate header (11). The gap between adjacent ones of the refrigerant circulation pipe (13) and the cool storage material container (14) (15) is a ventilation gap (16), and an aluminum corrugated fin (17) is provided in the ventilation gap (16). Is disposed and brazed to the refrigerant flow pipe (13) and the cold storage material container (14). In addition, aluminum corrugated fins (17) are also arranged outside the ones located at the left and right ends of the set (15) consisting of the refrigerant flow pipe (13) and the cold storage container (14), and the corrugated fins (17 ) Is brazed over both the front and rear refrigerant flow pipes (13), and the corrugated fin (17) at the left end is brazed to the cold storage material container (14). Aluminum side plates (18) are disposed outside the corrugated fins (17) at the left and right ends, and are brazed to the corrugated fins (17).
図３〜図５に示すように、蓄冷材容器(14)の前側部分は、前側の冷媒流通管(13)よりも前方に突出させられており、蓄冷材容器(14)における前側の冷媒流通管(13)よりも前方に突出した部分に、蓄冷材容器(14)の厚み方向（左右方向）の寸法である容器高さが、他の部分、すなわち前側の冷媒流通管(13)の前側縁よりも後方に位置する容器本体部(21)の容器高さよりも高くなった内容積増大部(22)が設けられている。内容積増大部(22)の容器高さは、冷媒流通管(13)の厚み方向の寸法である管高さ（管部高さ）に、蓄冷材容器(14)の容器本体部(21)の容器高さを加えた高さと等しくなっている。蓄冷材容器(14)の内容積増大部(22)の上下両端部は上下方向外側に突出しており、当該突出部に、左右方向外方に膨出した膨出状タンク形成部(23)が設けられている。隣り合う蓄冷材容器(14)の内容積増大部(22)のタンク形成部(23)どうしは相互にろう付されており、これによりすべての蓄冷材容器(14)が一体化されている。また、隣り合う蓄冷材容器(14)の内容積増大部(22)のタンク形成部(23)内どうしは、タンク形成部(23)の膨出端壁に形成された連通穴(24)を介して通じさせられている。そして、すべての蓄冷材容器(14)の内容積増大部(22)の上下のタンク形成部(23)によって上下両連通タンク(25)が形成されており、すべての蓄冷材容器(14)の内部が上下両連通タンク(25)において通じさせられている。図示は省略したが、上下両連通タンク(25)のうちのいずれか一方に蓄冷材充填口が形成されるとともに、同他方に空気抜き口が形成されており、蓄冷材充填口を通して全蓄冷材容器(14)内に蓄冷材が充填されるようになっている。蓄冷材充填口および空気抜き口は、蓄冷材容器(14)内への蓄冷材の充填後に適当な手段により塞がれている。蓄冷材容器(14)内へ充填される蓄冷材としては、たとえば水系、パラフィン系などの凝固点が３〜１０℃程度に調整されたものが用いられる。また、蓄冷材容器(14)内への蓄冷材の充填量は、全蓄冷材容器(14)内を上端部まで満たすような量とするのがよい。 As shown in FIGS. 3 to 5, the front portion of the cool storage material container (14) is protruded forward from the front coolant circulation pipe (13), and the front coolant circulation in the cool storage material container (14). In the portion protruding forward from the pipe (13), the container height, which is the dimension in the thickness direction (left-right direction) of the cold storage material container (14), is the other part, that is, the front side of the refrigerant circulation pipe (13) on the front side. There is provided an internal volume increasing portion (22) that is higher than the container height of the container main body (21) located behind the edge. The container height of the internal volume increasing part (22) is equal to the pipe height (pipe part height) which is the dimension in the thickness direction of the refrigerant flow pipe (13), and the container body part (21) of the regenerator container (14). It is equal to the height of the container plus. The upper and lower ends of the inner volume increasing portion (22) of the cold storage material container (14) protrude outward in the vertical direction, and the protruding tank forming portion (23) bulging outward in the left-right direction is formed in the protruding portion. Is provided. The tank forming portions (23) of the inner volume increasing portions (22) of the adjacent cool storage material containers (14) are brazed to each other, so that all the cool storage material containers (14) are integrated. Further, the inside of the tank forming portion (23) of the inner volume increasing portion (22) of the adjacent cool storage material container (14) has a communication hole (24) formed in the bulging end wall of the tank forming portion (23). Is communicated through. Then, the upper and lower communication tanks (25) are formed by the upper and lower tank forming portions (23) of the inner volume increasing portions (22) of all the cool storage material containers (14), and all the cool storage material containers (14) The inside communicates with the upper and lower communication tanks (25). Although not shown in the drawings, a regenerator filling port is formed in one of the upper and lower communication tanks (25), and an air vent is formed in the other, and all the regenerator containers are formed through the regenerator filling port. (14) The cold storage material is filled inside. The cool storage material filling port and the air vent port are closed by an appropriate means after the cool storage material container (14) is filled with the cool storage material. As the cold storage material filled in the cold storage material container (14), for example, a water-based, paraffin-based or the like whose freezing point is adjusted to about 3 to 10 ° C is used. In addition, the amount of the cold storage material filled in the cold storage material container (14) is preferably set to an amount that fills the entire cold storage material container (14) up to the upper end.
図６に示すように、蓄冷材容器(14)は、周縁部どうしが互いにろう付された２枚の縦長方形状アルミニウム板(26)(27)よりなる。すべてのアルミニウム板(26)(27)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からなり、左右両方から見た外形は同一となっている。蓄冷材容器(14)を構成する左側のアルミニウム板(26)は、前側部分を除いた大部分を占めるとともに、左方に膨出した容器本体部(21)形成用の第１膨出部(28)と、第１膨出部(28)の前側に連なるとともに左方に膨出し、かつ第１膨出部(28)と膨出高さの等しい内容積増大部(22)形成用の第２膨出部(29)と、第２膨出部(29)の上下両端部に設けられて左方に膨出し、かつ第２膨出部(29)よりも膨出高さの高いタンク形成部(23)形成用の第３膨出部(31)とを備えている。左端の蓄冷材容器(14)を除いた蓄冷材容器(14)を構成する左側アルミニウム板(26)における第３膨出部(31)の膨出端壁に連通穴(24)が形成されている。蓄冷材容器(14)を構成する右側のアルミニウム板(27)は、前側部分を除いた大部分を占める容器本体部(21)形成用の平坦部(32)と、平坦部(32)の前側に連なるとともに右方に膨出した内容積増大部(22)形成用の第１膨出部(33)と、第１膨出部(33)の上下両端部に設けられて右方に膨出し、かつ第１膨出部(33)よりも膨出高さの高いタンク形成部(23)形成用の第２膨出部(34)とを備えている。右端の蓄冷材容器(14)を除いた蓄冷材容器(14)を構成する右側アルミニウム板(27)における第２膨出部(34)の膨出端壁に連通穴(24)が形成されている。そして、２枚のアルミニウム板(26)(27)を、膨出部(28)(29)(31)(33)(34)の開口どうしが対向するように組み合わせてろう付することにより、蓄冷材容器(14)が形成されている。隣接する２つの蓄冷材容器(14)のタンク形成部(23)どうしは、第３膨出部(31)と第２膨出部(34)の連通穴(24)どうしが通じるように相互にろう付されている。 As shown in FIG. 6, the cool storage material container (14) is composed of two vertical rectangular aluminum plates (26) and (27) whose peripheral portions are brazed to each other. All the aluminum plates (26) and (27) are made of an aluminum brazing sheet having a brazing filler metal layer on both sides, and the outer shapes viewed from both the left and right sides are the same. The left aluminum plate (26) constituting the regenerator container (14) occupies most of the portion excluding the front side portion, and forms a first bulge portion for forming the container body portion (21) bulged to the left ( 28) and a first bulge for forming an internal volume increasing portion (22) connected to the front side of the first bulging portion (28) and bulging to the left and having the same bulging height as the first bulging portion (28). Two bulges (29) and a tank formed at the upper and lower ends of the second bulge (29) and bulging to the left and having a higher bulge than the second bulge (29) And a third bulging portion (31) for forming the portion (23). A communication hole (24) is formed in the bulging end wall of the third bulging portion (31) in the left aluminum plate (26) constituting the cold storage material container (14) excluding the leftmost cold storage material container (14). Yes. The right aluminum plate (27) constituting the cold storage material container (14) includes a flat part (32) for forming the container body part (21) that occupies most of the front part, and the front side of the flat part (32). And a first bulging portion (33) for forming an inner volume increasing portion (22) that bulges to the right and the upper and lower ends of the first bulging portion (33) and bulges to the right. And a second bulging portion (34) for forming a tank forming portion (23) having a bulging height higher than that of the first bulging portion (33). A communication hole (24) is formed in the bulging end wall of the second bulging portion (34) in the right aluminum plate (27) constituting the cold storage material container (14) excluding the rightmost cold storage material container (14). Yes. Then, the two aluminum plates (26) and (27) are brazed in combination so that the openings of the bulging portions (28), (29), (31), (33), and (34) face each other. A material container (14) is formed. The tank forming portions (23) of two adjacent cool storage material containers (14) are mutually connected so that the communication holes (24) of the third bulging portion (31) and the second bulging portion (34) communicate with each other. It is brazed.
コルゲートフィン(17)の前側部分は、前側の冷媒流通管(13)よりも前方に突出させられており、左右両端のコルゲートフィン(17)を除いたコルゲートフィン(17)における前側の冷媒流通管(13)よりも前方に突出した部分が、左右両側に位置する蓄冷材容器(14)の内容積増大部(22)の左右両側面にろう付されている。 The front portion of the corrugated fin (17) protrudes forward from the front refrigerant flow tube (13), and the front refrigerant flow tube in the corrugated fin (17) excluding the corrugated fins (17) at both left and right ends. Portions protruding forward from (13) are brazed to the left and right side surfaces of the internal volume increasing portion (22) of the cold storage material container (14) located on the left and right sides.
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）とともにカーエアコンを構成する。当該カーエアコンにおいて、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)の入口ヘッダ部(5)内に入り、前側の全冷媒流通管(13)を通って第１中間ヘッダ部(9)内に流入する。第１中間ヘッダ部(9)内に入った冷媒は、連通部材(12)を通って第２中間ヘッダ部(11)内に入った後、後側の全冷媒流通管(13)を通って出口ヘッダ部(6)内に流入し、冷媒出口(8)から流出する。そして、冷媒が冷媒流通管(13)内を流れる間に、通風間隙(16)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 ( Car air conditioner is configured with a decompressor. In the car air conditioner, 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) to store the cold. It enters into the inlet header part (5) of the attached evaporator (1) and flows into the first intermediate header part (9) through the front all refrigerant circulation pipe (13). The refrigerant that has entered the first intermediate header portion (9) passes through the communication member (12), enters the second intermediate header portion (11), and then passes through the rear refrigerant flow pipe (13). It flows into the outlet header (6) and flows out from the refrigerant outlet (8). Then, while the refrigerant flows through the refrigerant flow pipe (13), heat exchange is performed with the air passing through the ventilation gap (16), and the refrigerant flows out as a gas phase.
このとき、両側の冷媒流通管(13)内を流れる冷媒によって蓄冷材容器(14)の容器本体部(21)内の蓄冷材が冷却されるとともに、通風間隙(16)を通って冷媒により冷やされた空気によって蓄冷材容器(14)の内容積増大部(22)内の蓄冷材が冷却され、その結果蓄冷材が凝固して冷熱が蓄えられる。 At this time, the cool storage material in the container body (21) of the cool storage material container (14) is cooled by the coolant flowing in the refrigerant flow pipes (13) on both sides, and is cooled by the coolant through the ventilation gap (16). The regenerator air cools the regenerator material in the internal volume increasing portion (22) of the regenerator material container (14), and as a result, the regenerator material is solidified to store cold heat.
圧縮機が停止した場合には、蓄冷材容器(14)の容器本体部(21)内の蓄冷材の有する冷熱が、容器本体部(21)の左側面から蓄冷材容器(14)の左側面にろう付されているコルゲートフィン(17)を介して通風間隙(16)を通過する空気に伝えられるとともに、容器本体部(21)の右側面から冷媒流通管(13)および当該冷媒流通管(13)にろう付されているコルゲートフィン(17)を介して通風間隙(16)を通過する空気に伝えられる。また、蓄冷材容器(14)の内容積増大部(22)内の蓄冷材の有する冷熱は、内容積増大部(22)の左右両側面から内容積増大部(22)の左右両側面にろう付されているコルゲートフィン(17)を介して通風間隙(16)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 stops, the cold heat of the cool storage material in the container main body (21) of the cool storage material container (14) is transferred from the left side of the container main body (21) to the left side of the cool storage material container (14). It is transmitted to the air passing through the ventilation gap (16) through the corrugated fin (17) brazed to the refrigerant, and the refrigerant flow pipe (13) and the refrigerant flow pipe ( It is transmitted to the air passing through the ventilation gap (16) through the corrugated fin (17) brazed to 13). Also, the cold heat of the regenerator material in the internal volume increasing portion (22) of the regenerator container (14) will be transferred from the left and right side surfaces of the internal volume increasing portion (22) to the left and right side surfaces of the internal volume increasing portion (22). It is transmitted to the air passing through the ventilation gap (16) through the attached corrugated fin (17). 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はこの発明による蓄冷機能付きエバポレータの他の実施形態を示す。 FIG. 7 shows another embodiment of the evaporator with a cold storage function according to the present invention.
図７に示す蓄冷機能付きエバポレータの前後に並んだ複数、ここでは２つの冷媒流通管(13)(40)のうちの前側（前端）に配置された冷媒流通管(40)の厚み方向の寸法である管高さが後側の冷媒流通管(13)の管高さよりも低くなっている。また、蓄冷材容器(41)の前側部分は前側の冷媒流通管(40)の前端よりも前方に突出しておらず、当該冷媒流通管(40)における管高さの低い冷媒流通管(40)とろう付された部分に、蓄冷材容器(41)の厚み方向（左右方向）の寸法である容器高さが、他の部分、すなわち前側の冷媒流通管(40)の後側縁よりも後方に位置する容器本体部(42)の容器高さよりも高くなった内容積増大部(43)が設けられている。蓄冷材容器(41)の内容積増大部(43)の容器高さに前側冷媒流通管(40)の厚み方向の寸法である管高さを加えた厚さは、蓄冷材容器(41)の容器本体部(42)の容器高さに後側冷媒流通管(13)の厚み方向の寸法である管高さを加えた厚さと等しくなっている。また、コルゲートフィン(17)の前側部分も前側の冷媒流通管(40)の前端よりも前方に突出しておらず、冷媒流通管(13)(40)の右側面と、蓄冷材容器(41)の容器本体部(42)および内容積増大部(43)の左側面とにろう付されている。 Dimension in the thickness direction of the refrigerant flow pipe (40) arranged on the front side (front end) of a plurality of, in this case, two refrigerant flow pipes (13) and (40) arranged in front and rear of the evaporator with a cold storage function shown in FIG. The pipe height is lower than the pipe height of the rear refrigerant flow pipe (13). The front portion of the regenerator container (41) does not protrude forward from the front end of the front refrigerant flow pipe (40), and the refrigerant flow pipe (40) having a low pipe height in the refrigerant flow pipe (40). In the brazed part, the container height, which is the dimension in the thickness direction (left-right direction) of the cold storage material container (41), is behind the other part, that is, the rear edge of the front refrigerant flow pipe (40). An inner volume increasing portion (43) that is higher than the container height of the container main body portion (42) located at the position is provided. The thickness obtained by adding the pipe height, which is the dimension in the thickness direction of the front refrigerant flow pipe (40), to the container height of the internal volume increasing portion (43) of the cold storage material container (41) is the thickness of the cold storage material container (41). The thickness is equal to the container height of the container main body (42) plus the tube height which is the dimension in the thickness direction of the rear refrigerant flow pipe (13). Further, the front side portion of the corrugated fin (17) does not protrude forward from the front end of the front refrigerant flow pipe (40), and the right side surface of the refrigerant flow pipe (13) (40) and the cold storage material container (41) The container main body portion (42) and the left side surface of the internal volume increasing portion (43) are brazed.
上記２つの実施形態において、蓄冷機能付きエバポレータの冷媒流通管部は、所謂積層型エバポレータの場合と同様に、２枚のアルミニウム板を対向させて周縁部どうしをろう付することにより形成された扁平中空体に設けられていてもよい。すなわち、扁平中空体を構成する両アルミニウム板間に膨出状に形成されたものであってもよい。 In the two embodiments described above, the refrigerant flow pipe portion of the evaporator with the cold storage function is a flat surface formed by brazing the peripheral portions with two aluminum plates facing each other, as in the case of a so-called laminated evaporator. It may be provided in the hollow body. That is, it may be formed in a bulging shape between both aluminum plates constituting the flat hollow body.
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
(13)(40)：冷媒流通管（冷媒流通管部）
(14)(41)：蓄冷材容器
(15)：冷媒流通管および蓄冷材容器よりなる組
(16)：通風間隙
(17)：コルゲートフィン
(22)(43)：内容積増大部
(1): Evaporator with cool storage function
(13) (40): Refrigerant circulation pipe (refrigerant circulation pipe part)
(14) (41): Cold storage container
(15): A set consisting of a refrigerant flow pipe and a cold storage container
(16): Ventilation gap
(17): Corrugated fin
(22) (43): Internal volume increasing part
Claims (5)
蓄冷材容器の前後両側部分のうちのいずれか一方に、蓄冷材容器の厚み方向の寸法である容器高さが他の部分の容器高さよりも高くなった内容積増大部が設けられており、蓄冷材容器の左右方向から見た輪郭が縦長の長方形状であり、蓄冷材容器の前後両側部分のうちのいずれか一方が、冷媒流通管部よりも前後方向外側に突出させられ、蓄冷材容器における冷媒流通管部よりも前後方向外側に突出した部分に内容積増大部が設けられ、蓄冷材容器の内容積増大部の上下両端部に、内容積増大部を除いた部分の上下両端よりも上下方向外側に突出した突出部が、蓄冷材容器の長方形状の輪郭から突出するように設けられ、内容積増大部の突出部の上下方向外端がヘッダタンクの全高さの範囲内に位置し、すべての蓄冷材容器の内部が、内容積増大部の上下方向外側への突出部において通じさせられている蓄冷機能付きエバポレータ。 Flat refrigerant circulation pipes with the width direction facing in the front-rear direction and spaced apart from each other, and flat cold storage units arranged with the width direction in the front-rear direction and in contact with one side of the refrigerant flow pipe part And an evaporator with a cold storage function , wherein both upper and lower ends of the refrigerant flow pipe section are spaced apart in the vertical direction and communicated with the upper and lower header tanks arranged with the longitudinal direction facing the left and right directions. There,
Either one of the front and rear side portions of the regenerator container is provided with an internal volume increasing portion in which the container height, which is the dimension in the thickness direction of the regenerator container, is higher than the container height of the other part , The contour of the cool storage material container as viewed from the left-right direction is a vertically long rectangular shape, and either one of the front and rear side portions of the cool storage material container is protruded outward in the front-rear direction from the refrigerant flow pipe portion, and the cool storage material container The inner volume increasing portion is provided in a portion protruding outward in the front-rear direction from the refrigerant flow pipe portion in the upper and lower ends of the inner volume increasing portion of the cold storage material container than the upper and lower ends of the portion excluding the inner volume increasing portion. A protruding portion protruding outward in the vertical direction is provided so as to protrude from the rectangular outline of the cool storage material container, and the vertical outer end of the protruding portion of the internal volume increasing portion is located within the total height of the header tank. , The inner volume of all the regenerator containers Vertically outside to be that the evaporator with a cool storage function which is vented at the protruding portion of the voluminous.
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| JP2009052871A JP5315094B2 (en) | 2009-03-06 | 2009-03-06 | Evaporator with cool storage function |
| US12/656,971 US20100223949A1 (en) | 2009-03-06 | 2010-02-22 | Evaporator with cool storage function |
| CN201010128945.3A CN101825377B (en) | 2009-03-06 | 2010-03-04 | Evaporator with cool storage function |
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| JP5315094B2 true JP5315094B2 (en) | 2013-10-16 |
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| JP5717436B2 (en) * | 2010-12-24 | 2015-05-13 | 株式会社ケーヒン・サーマル・テクノロジー | Evaporator with cool storage function |
| US20120042687A1 (en) * | 2010-08-23 | 2012-02-23 | Showa Denko K.K. | Evaporator with cool storage function |
| JP2012102969A (en) * | 2010-11-12 | 2012-05-31 | Showa Denko Kk | Evaporator with cool storage function |
| JP5865616B2 (en) * | 2011-07-04 | 2016-02-17 | 株式会社ケーヒン・サーマル・テクノロジー | Evaporator with cool storage function |
| JP5868088B2 (en) * | 2011-09-15 | 2016-02-24 | 株式会社ケーヒン・サーマル・テクノロジー | Cooling unit for vehicle air conditioner |
| JP5898995B2 (en) * | 2012-02-20 | 2016-04-06 | 株式会社ケーヒン・サーマル・テクノロジー | Manufacturing method of evaporator with cold storage function for car air conditioner |
| WO2017208760A1 (en) | 2016-06-01 | 2017-12-07 | 株式会社デンソー | Regenerative heat exchanger |
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| JPH11129735A (en) * | 1997-10-31 | 1999-05-18 | Zexel:Kk | Regeneration type air conditioner |
| JPH11294918A (en) * | 1998-04-06 | 1999-10-29 | Zexel:Kk | Cold accumulator |
| ATE318726T1 (en) * | 2001-01-05 | 2006-03-15 | Behr Gmbh & Co Kg | AIR CONDITIONING SYSTEM FOR A MOTOR VEHICLE |
| DE102006011327A1 (en) * | 2006-03-09 | 2007-09-13 | Behr Gmbh & Co. Kg | Heat exchanger with cold storage |
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