JP6373325B2 - Evaporator with cool storage function - Google Patents

Evaporator with cool storage function Download PDF

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JP6373325B2
JP6373325B2 JP2016205779A JP2016205779A JP6373325B2 JP 6373325 B2 JP6373325 B2 JP 6373325B2 JP 2016205779 A JP2016205779 A JP 2016205779A JP 2016205779 A JP2016205779 A JP 2016205779A JP 6373325 B2 JP6373325 B2 JP 6373325B2
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evaporator
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JP2017015391A (en
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鴨志田　理
理 鴨志田
平山　貴司
貴司 平山
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Mahle Behr Thermal Systems Japan Ltd
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Keihin Thermal Technology Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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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、図２の上下、左右を上下、左右というものとする。   In this specification and claims, the top and bottom, left and right in FIG.

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.

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.

蓄冷機能付きエバポレータとして、本出願人は、先に、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き、かつ通風方向に間隔をおいて配置された２つの扁平状冷媒流通管からなる複数の管組が、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、隣り合う管組どうしの間に通風間隙が形成され、すべての通風間隙のうちの一部の通風間隙に、蓄冷材が封入された蓄冷材容器が、管組の全冷媒流通管に跨るように配置され、蓄冷材容器が、冷媒流通管に接合された容器本体部を備えており、蓄冷材容器の容器本体部の左右両側壁に、上下方向に間隔をおいて形成され、かつ外方に膨出するとともに冷媒流通管に接触した複数の凸部からなる凸部列が、通風方向に間隔をおいて複数設けられ、各凸部の長さが蓄冷材容器の通風方向の幅よりも短くなり、各凸部が上方から下方に向かって風上側に傾斜し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 a cold storage function, the present applicant first comprises two flat refrigerant circulation pipes whose longitudinal direction faces the up-down direction, the width direction faces the ventilation direction, and is arranged at intervals in the ventilation direction. A plurality of pipe sets are arranged in parallel in the thickness direction of the refrigerant flow pipe, and a ventilation gap is formed between adjacent pipe sets, and a part of all the ventilation gaps is formed in a ventilation gap. The regenerator container in which the regenerator material is enclosed is arranged so as to straddle all the refrigerant circulation pipes of the pipe set, and the regenerator container has a container main body joined to the refrigerant distribution pipe. A row of convex portions formed of a plurality of convex portions formed on the left and right side walls of the container main body at intervals in the vertical direction and bulging outward and in contact with the refrigerant flow pipe is spaced in the ventilation direction. The length of each convex part is the ventilation of the cool storage material container Shorter than the width of the direction, the convex portion is proposed with a cool storage function evaporator is inclined windward side as they go downward (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、圧縮機が作動している通常の冷房時には、冷媒流通管内を流れる冷媒の有する冷熱が、凸部を介して蓄冷材容器内の蓄冷材に伝わって蓄冷材に蓄えられ、圧縮機が停止した際には、蓄冷材容器内の蓄冷材に蓄えられた冷熱が、凸部および冷媒流通管を介して通風間隙に配置されたフィンに伝えられ、フィンから当該通風間隙を流れる空気に放冷されるようになっており、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可能になり、エンジンが停止した際の冷房能力の急激な低下が抑制されている。   According to the evaporator with a cool storage function described in Patent Document 1, during normal cooling when the compressor is operating, the cold heat of the coolant flowing in the coolant circulation pipe is transmitted to the cool storage material in the cool storage material container via the convex portion. When the compressor is stopped, the cold heat stored in the cool storage material in the cool storage material container is transmitted to the fins arranged in the ventilation gap via the convex portion and the refrigerant flow pipe, It is designed to cool down to the air flowing through the ventilation gap from the fins, and when the engine stops and the compressor stops, it is possible to cool the passenger compartment using the cold heat stored in the evaporator Thus, a rapid decrease in the cooling capacity when the engine is stopped is suppressed.

ところで、圧縮機の作動時には、蓄冷材容器外面に発生した凝縮水が凍結するおそれがあるので、当該凝縮水を効果的に排水する必要がある。   By the way, when the compressor is operated, the condensed water generated on the outer surface of the cool storage material container may freeze, and therefore, it is necessary to effectively drain the condensed water.

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、各凸部の長さが蓄冷材容器の通風方向の幅よりも短いので、表面張力によって凝縮水が各凸部列の上下方向に隣り合う凸部どうしの間に留まり、スムーズに排水されないことがある。すなわち、凸部の長さが短いと、上下方向に隣り合う凸部どうしの間に溜まる凝縮水の量は比較的少なくなり、凝縮水に作用する重力が表面張力よりも小さくなる場合があり、いつまでも隣り合う凸部どうしの間に留まってスムーズに排水されなくなる。   However, in the evaporator with a cool storage function described in Patent Document 1, the length of each projection is shorter than the width in the ventilation direction of the cool storage material container, so that condensed water is adjacent in the vertical direction of each projection row due to surface tension. It may stay between the convex parts and may not be drained smoothly. That is, if the length of the convex portion is short, the amount of condensed water accumulated between the convex portions adjacent to each other in the vertical direction is relatively small, and the gravity acting on the condensed water may be smaller than the surface tension. It stays between the adjacent convex parts forever and does not drain smoothly.

特開２０１０−１４９８１４号公報JP 2010-149814 A

この発明の目的は、上記問題を解決し、蓄冷材容器の外面に発生した凝縮水をスムーズに排水することができる蓄冷機能付きエバポレータを提供することにある。   The objective of this invention is providing the evaporator with a cool storage function which can discharge | emit the condensed water which solved the said problem and generate | occur | produced on the outer surface of the cool storage material container smoothly.

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)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ており、隣り合う冷媒流通管どうしの間に通風間隙が形成され、全通風間隙のうち一部の複数の通風間隙に蓄冷材が封入された蓄冷材容器が配置され、残りの通風間隙にフィンが配置されて冷媒流通管に接合されており、蓄冷材容器が、冷媒流通管に接合された容器本体部を備えている蓄冷機能付きエバポレータであって、
容器本体部の左右両側壁外面に、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が間隔をおいて形成されており、各凝縮水排水路が、蓄冷材容器の容器本体部の左右両側壁に設けられて外方に膨出した２つの凸部の間に形成され、１つの凝縮水排水路を形成する２つの凸部のうち少なくともいずれか一方の凸部の長さが、蓄冷材容器の容器本体部の通風方向の幅よりも長くなっており、
蓄冷材容器の容器本体部の左右両側壁外面に設けられたすべての凝縮水排水路のうちの一部の凝縮水排水路が、全体に上方から下方に向かって風上側に傾斜しており、残りの凝縮水排水路が、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と、上傾斜部の下端と下傾斜部の上端とを通じさせる鉛直部とよりなり、各凝縮水排水路の上端が容器本体部の上縁または風下側縁部に開口し、上端が容器本体部の上縁に開口した凝縮水排水路の下端が容器本体部の風上側縁部に開口し、上端が容器本体部の風下側縁部に開口した凝縮水排水路の下端が容器本体部の下縁に開口し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-down direction and whose width direction faces the ventilation direction are arranged in parallel at intervals in the thickness direction of the refrigerant flow pipe, and adjacent refrigerant flow Refrigerant circulation pipes are formed in which a ventilation gap is formed between the pipes, a cool storage material container in which a cool storage material is sealed in a plurality of ventilation gaps among all the ventilation gaps, and fins are arranged in the remaining ventilation gaps. An evaporator with a cool storage function, wherein the cool storage material container is provided with a container body portion joined to the refrigerant flow pipe,
A plurality of condensate drainage channels that are gradually lowered from the upper end to the lower end and open at both upper and lower ends are formed at intervals on the outer surfaces of the left and right side walls of the container body. At least one of the two convex portions formed between the two convex portions provided on the left and right side walls of the container main body portion of the material container and bulging outward is formed. The length of the convex part is longer than the width in the ventilation direction of the container body part of the cold storage material container ,
Some of the condensate drainage channels of all the condensate drainage channels provided on the outer surfaces of the left and right side walls of the container body portion of the regenerator material container are inclined to the windward side from the top to the bottom, The remaining condensate drainage channel is vertically formed through an up-and-down inclined portion that is formed at an interval in the up-down direction and that is inclined upward on the windward side from above, and a lower end of the upper inclined portion and an upper end of the lower inclined portion. And the upper end of each condensate drainage channel opens to the upper edge or leeward side edge of the container body, and the lower end of the condensate drainage channel opens to the upper edge of the container body. An evaporator with a cold storage function having an opening at the windward edge and an upper end opened at the lower edge of the container main body with the lower end of the condensed water drainage channel opened at the lower edge of the container main body .

2)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ており、隣り合う冷媒流通管どうしの間に通風間隙が形成され、全通風間隙のうち一部の複数の通風間隙に蓄冷材が封入された蓄冷材容器が配置され、残りの通風間隙にフィンが配置されて冷媒流通管に接合されており、蓄冷材容器が、冷媒流通管に接合された容器本体部を備えている蓄冷機能付きエバポレータであって、
容器本体部の左右両側壁外面に、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が間隔をおいて形成されており、各凝縮水排水路が、蓄冷材容器の容器本体部の左右両側壁に設けられて外方に膨出した２つの凸部の間に形成され、１つの凝縮水排水路を形成する２つの凸部のうち少なくともいずれか一方の凸部の長さが、蓄冷材容器の容器本体部の通風方向の幅よりも長くなっており、
蓄冷材容器の容器本体部の左右両側壁外面に設けられたすべての凝縮水排水路が、全体に上方から下方に向かって風上側に傾斜しており、各凝縮水排水路の上端が容器本体部の上縁または風下側縁部に開口し、上端が容器本体部の上縁に開口した凝縮水排水路の下端が容器本体部の風上側縁部に開口し、上端が容器本体部の風下側縁部に開口した凝縮水排水路の下端が容器本体部の下縁に開口している蓄冷機能付きエバポレータ。 2) 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 at intervals in the thickness direction of the refrigerant flow pipe, and adjacent refrigerant flow Refrigerant circulation pipes are formed in which a ventilation gap is formed between the pipes, a cool storage material container in which a cool storage material is sealed in a plurality of ventilation gaps among all the ventilation gaps, and fins are arranged in the remaining ventilation gaps. An evaporator with a cool storage function, wherein the cool storage material container is provided with a container body portion joined to the refrigerant flow pipe,
A plurality of condensate drainage channels that are gradually lowered from the upper end to the lower end and open at both upper and lower ends are formed at intervals on the outer surfaces of the left and right side walls of the container body. At least one of the two convex portions formed between the two convex portions provided on the left and right side walls of the container main body portion of the material container and bulging outward is formed. The length of the convex part is longer than the width in the ventilation direction of the container body part of the cold storage material container,
All the condensate drainage channels provided on the outer wall of the left and right side walls of the container body part of the cool storage material container are inclined upward on the whole from the upper side to the lower side, and the upper end of each condensate drainage channel is the container body Open at the upper edge or leeward edge of the container, the lower end of the condensate drainage channel with the upper end opened at the upper edge of the container body, and the upper edge opened at the windward edge of the container body, and the upper end of the container body An evaporator with a cold storage function in which the lower end of the condensate drainage channel opened at the side edge is opened at the lower edge of the container body .

3)蓄冷材容器の容器本体部の凸部の突出端が冷媒流通管に接合され、蓄冷材容器の容器本体部内にインナーフィンが配置されるとともに、容器本体部の左右両側壁における凝縮水排水路の底部を形成する部分に接合され、容器本体部の左側壁の凝縮水排水路および凸部と、右側壁の凝縮水排水路および凸部とが、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ずれて設けられている上記1)または2)記載の蓄冷機能付きエバポレータ。 3) The protruding end of the convex part of the container body part of the cool storage material container is joined to the refrigerant flow pipe, inner fins are arranged in the container body part of the cool storage material container, and condensed water drainage on the left and right side walls of the container body part The condensate drainage channel and the convex part on the left side wall of the container main body part and the condensate drainage channel and the convex part on the right side wall are joined in the same horizontal plane so that they do not overlap with each other. The evaporator with a cold storage function as described in 1) or 2) above, wherein the evaporator has a deviation in the ventilation direction.

4)蓄冷材容器が、容器本体部の風下側縁部または風上側縁部に連なって冷媒流通管よりも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を備えており、当該外方張り出し部に、容器本体部に対して左右両方向のうち少なくとも一方向に膨らみ、かつ左右方向の寸法が容器本体部の左右方向の寸法よりも大きくなっている膨張部が設けられ、当該膨張部がフィンよりも通風方向外側に位置しているとともに、膨張部の左右両側壁が平坦となっている上記1)〜3)のうちのいずれかに記載の蓄冷機能付きエバポレータ。 4) The cool storage material container includes an outward projecting portion that is connected to the leeward edge or the windward edge of the container main body so as to project outward from the refrigerant circulation pipe in the ventilation direction. The inflating part is provided with an inflating part that swells in at least one of the left and right directions with respect to the container main body part, and whose left and right dimension is larger than the left and right dimension of the container main body part. The evaporator with a cold storage function according to any one of the above 1) to 3) , in which is located on the outer side in the ventilation direction than the fins, and the left and right side walls of the expansion portion are flat.

5)蓄冷材容器の外方張り出し部が、容器本体部の風下側縁部または風上側縁部の上端から一定の長さを有し、かつ当該風下側縁部または風上側縁部の上下方向の全長のうちの一部分のみに連なって冷媒流通管よりも通風方向外側に張り出すように設けられている上記4)記載の蓄冷機能付きエバポレータ。 5) The outwardly projecting portion of the cool storage material container has a certain length from the upper end of the leeward side edge or the windward side edge of the container body, and the vertical direction of the leeward side edge or the windward side edge. The evaporator with a cold storage function according to the above 4), which is provided so as to be continuous with only a part of the entire length of the refrigerant and to extend outward from the refrigerant circulation pipe in the ventilation direction.

6)蓄冷材容器の外方張り出し部に、蓄冷材を蓄冷材容器内に注入するのに用いられた蓄冷材注入口を閉じることにより形成された封止部が存在している上記4)または5)記載の蓄冷機能付きエバポレータ。 6) The above 4) or 4), wherein there is a sealing portion formed by closing the cool storage material inlet used to inject the cool storage material into the cool storage material container in the outwardly projecting portion of the cool storage material container. 5) Evaporator with cool storage function.

7)前記封止部が、外方張り出し部の上端から上方に突出して形成され、当該封止部が、通風面に対して、上方に向かって容器本体部から離れる方向に傾斜している上記6)記載の蓄冷機能付きエバポレータ。 7) The sealing portion is formed so as to protrude upward from the upper end of the outward projecting portion, and the sealing portion is inclined in a direction away from the container main body portion upward with respect to the ventilation surface. 6) Evaporator with cool storage function.

8)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き、かつ通風方向に間隔をおいて配置された複数の扁平状冷媒流通管からなる管組が、冷媒流通管の厚み方向に間隔をおいて複数配置され、隣り合う管組どうしの間に通風間隙が形成されている上記1)〜7)のうちのいずれかに記載の蓄冷機能付きエバポレータ。 8) A pipe assembly composed of a plurality of flat refrigerant flow tubes arranged in the longitudinal direction and the width direction facing the ventilation direction and spaced in the ventilation direction is spaced in the thickness direction of the refrigerant flow tube. The evaporator with a cool storage function according to any one of 1) to 7) above, wherein a plurality of air gaps are arranged and a ventilation gap is formed between adjacent pipe sets.

上記1)〜8)の蓄冷機能付きエバポレータによれば、容器本体部の左右両側壁外面に、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が間隔をおいて形成されており、各凝縮水排水路が、蓄冷材容器の容器本体部の左右両側壁に設けられて外方に膨出した２つの凸部の間に形成され、１つの凝縮水排水路を形成する２つの凸部のうち少なくともいずれか一方の凸部の長さが、蓄冷材容器の容器本体部の通風方向の幅よりも長くなっているので、蓄冷材容器の容器本体部の表面に発生した凝縮水が、表面張力によって２つの凸部に沿うようにして凝縮水排水路内に溜まった場合、溜まった凝縮水の量が多くなると、溜まった凝縮水に作用する重力が表面張力よりも大きくなり、凝縮水排水路内を一挙に流下する。したがって、凝縮水が凝縮水排水路内に留まる時間が短くなり、蓄冷材容器の外面に発生した凝縮水をスムーズに排水することができる。 According to the evaporator with a cold storage function of the above 1) to 8) , a plurality of condensate drainage channels that are gradually lowered from the upper end to the lower end and open at both the upper and lower ends are spaced apart from each other on the left and right side walls of the container body. Each condensate drainage channel is formed between two convex portions that are provided on the left and right side walls of the container body portion of the cool storage material container and bulge outward. The length of at least one of the two convex portions forming the path is longer than the width in the ventilation direction of the container body portion of the cool storage material container. When condensed water generated on the surface accumulates in the condensed water drainage channel along the two convex portions due to surface tension, if the amount of accumulated condensed water increases, the gravity acting on the accumulated condensed water is It becomes larger than the tension and flows through the condensate drainage channel at once. I will give you. Therefore, the time during which the condensed water stays in the condensed water drainage path is shortened, and the condensed water generated on the outer surface of the cold storage material container can be smoothly drained.

上記1)または2)の蓄冷機能付きエバポレータによれば、通風している際には、蓄冷材容器の凝縮水排水路の下側部分で凝縮水を保持することができるので、冷房時（蓄冷時）および放冷時に、凝縮水の顕熱としての冷熱によって、冷媒流通管と蓄冷材容器との間を通る風の温度上昇を抑制することができる。 According to the evaporator with a cool storage function of 1) or 2) above, the condensed water can be held in the lower part of the condensate drainage channel of the cool storage material container when ventilating. ) And at the time of cooling, the temperature rise of the wind passing between the refrigerant circulation pipe and the cool storage material container can be suppressed by the cold heat as sensible heat of the condensed water .

上記3)の蓄冷機能付きエバポレータによれば、蓄冷材容器の容器本体部の凸部の突出端が冷媒流通管に接合され、蓄冷材容器の容器本体部内にインナーフィンが配置されるとともに、容器本体部の左右両側壁における凝縮水排水路の底部を形成する部分に接合され、容器本体部の左側壁の凝縮水排水路および凸部と、右側壁の凝縮水排水路および凸部とが、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ずれて設けられているので、凝縮水排水路および凸部の通風方向の幅や、通風方向のずれ幅を適切に調節することによって、蓄冷材容器の容器本体部の左右の各側壁に、インナーフィンに接触する接触部分と、インナーフィンに接触しない非接触部分とを設けるとともに、蓄冷材容器を左右いずれか一方から見た際の容器本体部の左右の各側壁と冷媒流通管とが重なる重なり部分において、蓄冷材容器の容器本体部の左右の各側壁におけるインナーフィンに接触する接触部分の面積を、インナーフィンに接触しない非接触部分の面積よりも大きくすることができる。したがって、蓄冷時および放冷時のいずれに場合においても、蓄冷材容器の左右両側壁と蓄冷材との間のインナーフィンを介しての熱伝達性能が優れたものになる。 According to the evaporator with a cool storage function of 3) above, the protruding end of the convex portion of the container body portion of the cool storage material container is joined to the refrigerant flow pipe, and the inner fin is disposed in the container body portion of the cool storage material container, and the container It is joined to the part forming the bottom of the condensate drainage channel on the left and right side walls of the main body part, the condensate drainage channel and the convex part on the left side wall of the container main body part, and the condensate drainage channel and the convex part on the right side wall, Since it is provided in the same horizontal plane and shifted in the ventilation direction so that it does not overlap with the whole, cold storage is achieved by appropriately adjusting the width of the condensed water drainage channel and the convex part in the ventilation direction and the deviation width in the ventilation direction. The container body when the left and right side walls of the container body part of the material container are provided with a contact part that contacts the inner fin and a non-contact part that does not contact the inner fin, and the cold storage container is viewed from either the left or right side In the overlapping portion where the left and right side walls and the refrigerant flow pipe overlap, the area of the contact portion that contacts the inner fin on the left and right side walls of the container body of the cold storage material container is the area of the non-contact portion that does not contact the inner fin Can be larger. Therefore, in both cases of cold storage and cooling, the heat transfer performance through the inner fins between the left and right side walls of the cold storage material container and the cold storage material becomes excellent.

上記4)の蓄冷機能付きエバポレータによれば、蓄冷材容器の内圧が異常上昇した場合に、外方張り出し部の膨張部の平坦な左右両側壁が外方に膨らむように変形し、蓄冷材容器の内圧の異常上昇による破損が防止される。 According to the evaporator with a cold storage function of 4) above, when the internal pressure of the cold storage material container is abnormally increased, the flat left and right side walls of the expansion part of the outward projecting part are deformed so as to expand outward, and the cold storage material container Damage due to an abnormal increase in internal pressure of the pipe is prevented.

上記5)の蓄冷機能付きエバポレータによれば、蓄冷材容器の外方張り出し部が、容器本体部の風下側縁部または風上側縁部の上端から一定の長さを有し、かつ当該風下側縁部または風上側縁部の上下方向の全長のうちの一部分のみに連なって冷媒流通管よりも通風方向外側に張り出すように設けられているので、冷媒流通管に直接には接していない外方張り出し部内に存在する蓄冷材の量を少なくすることが可能になって、蓄冷材容器内に封入された全蓄冷材のうち効果的に冷却されない蓄冷材の量を低減することができる。すなわち、蓄冷材容器の強度、および蓄冷材容器の内部空間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は、通常の使用環境温度範囲、たとえば−４０〜９０℃の範囲内において、液相状態の蓄冷材が密度変化するとともに、蓄冷材容器内に残存している空気が熱膨張することにより内圧が上昇したとしても、破損しないような強度および蓄冷材充填率に設計されている。このような蓄冷材充填率は、当然１００％未満であるから、蓄冷材容器内の上端寄りの部分には、蓄冷材の存在しない空間が存在することになり、容器本体部の風下側縁部または風上側縁部の上端から一定の長さにわたって設けられている外方張り出し部内の全てが蓄冷材で満たされることはなくなる。その結果、蓄冷材容器内に封入された全蓄冷材のうち効果的に冷却されない蓄冷材の量を低減することができる。 According to the evaporator with a cold storage function of 5) above, the outward projecting portion of the cold storage material container has a certain length from the upper end of the leeward side edge or the upper windward edge of the container body, and the leeward side Since it is provided so as to extend to the outside in the ventilation direction from the refrigerant flow pipe continuously to only a part of the entire length in the vertical direction of the edge part or the windward edge part, it is not directly in contact with the refrigerant flow pipe. It becomes possible to reduce the quantity of the cool storage material which exists in a side projection part, and can reduce the quantity of the cool storage material which is not cooled effectively among all the cool storage materials enclosed in the cool storage material container. That is, the cold storage material filling rate which is the ratio of the volume of the enclosed cold storage material to the inner volume of the internal space of the cold storage material container and the cold storage material container is a normal operating environment temperature range, for example, −40 to 90 ° C. Within the range, the density of the cold storage material in the liquid phase changes, and even if the internal pressure rises due to the thermal expansion of the air remaining in the cold storage material container, the strength and the cold storage material filling rate will not break Designed. Since such a regenerator filling rate is naturally less than 100%, a space near the upper end in the regenerator container has a space where no regenerator material exists, and the leeward side edge of the container body part Or all the inside of the outward projecting part provided over a fixed length from the upper end of the windward edge is not filled with the cold storage material. As a result, the amount of the regenerator material that is not effectively cooled among all the regenerator materials enclosed in the regenerator material container can be reduced.

上記7)の蓄冷機能付きエバポレータによれば、蓄冷材注入口を通して蓄冷材を蓄冷材容器内に注入する際の作業性、および蓄冷材注入口を封止する際の作業性が向上する。 According to the evaporator with the cold storage function of 7) , the workability when the cold storage material is injected into the cold storage material container through the cold storage material inlet and the workability when the cold storage material inlet is sealed are improved.

この発明の蓄冷機能付きエバポレータの全体構成を示す斜視図である。It is a perspective view which shows the whole structure of the evaporator with a cool storage function of this invention. この発明の蓄冷機能付きエバポレータの全体構成を示す通風方向下流側から見た正面図である。It is the front view seen from the ventilation direction downstream which shows the whole structure of the evaporator with a cool storage function of this invention. 図１および図２の蓄冷機能付きエバポレータに用いられる蓄冷材容器を示す左側面図である。It is a left view which shows the cool storage material container used for the evaporator with a cool storage function of FIG. 1 and FIG. 図３のＡ−Ａ線拡大断面図である。It is an AA line expanded sectional view of FIG. 図１および図２の蓄冷機能付きエバポレータに用いられる蓄冷材容器の上部を示し、左側の金属板を切除して示す図３の一部分に相当する図である。It is a figure corresponding to a part of Drawing 3 which shows the upper part of the cool storage material container used for the evaporator with a cool storage function of Drawing 1 and Drawing 2, and cuts off the left metal plate. 図１および図２の蓄冷機能付きエバポレータに用いられる蓄冷材容器を示す分解斜視図である。It is a disassembled perspective view which shows the cool storage material container used for the evaporator with a cool storage function of FIG. 1 and FIG. 図１および図２の蓄冷機能付きエバポレータに用いられる蓄冷材容器の内圧が異常上昇した状態を示す図４の一部分に相当する図である。FIG. 5 is a view corresponding to a part of FIG. 4 showing a state in which the internal pressure of the cool storage material container used in the evaporator with the cool storage function of FIGS. 1 and 2 is abnormally increased. 図１および図２の蓄冷機能付きエバポレータに用いられる蓄冷材容器の変形例を示す図３に相当する図である。It is a figure equivalent to FIG. 3 which shows the modification of the cool storage material container used for the evaporator with a cool storage function of FIG. 1 and FIG.

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、通風方向下流側（図１〜図３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。したがって、前方から後方を見た際の上下、左右が図２の上下、左右となる。   In the following description, the downstream side in the ventilation direction (the direction indicated by the arrow X in FIGS. 1 to 3) is referred to as the front, and the opposite side is referred to as the rear. Accordingly, when viewed from the front to the rear, the top, bottom, left and right are the top, bottom, left, and right in FIG.

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および図２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３〜図７はその要部の構成を示す。   1 and 2 show the overall configuration of an evaporator with a cold storage function according to the present invention, and FIGS. 3 to 7 show the configuration of the main part thereof.

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、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。   1 and 2, the evaporator (1) with a cold storage function is composed of an aluminum first header tank (2) and an aluminum second one arranged at intervals in the vertical direction with the longitudinal direction directed in the horizontal direction. A header tank (3) and a heat exchange core part (4) provided between both header tanks (2) and (3) are provided.

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。第２ヘッダタンク(3)の風下側下ヘッダ部(9)内と風上側下ヘッダ部(11)内とは、図示しない適当な手段により通じさせられている。   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. The inside of the leeward side lower header portion (9) and the inside of the leeward side lower header portion (11) of the second header tank (3) are communicated by appropriate means (not shown).

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押出形材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通風間隙(14)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。   In the heat exchange core part (4), a plurality of extruded 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) are provided in the left-right direction ( The refrigerant flow pipes (12) are arranged in parallel at intervals in the thickness direction). 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 ventilation gap (14) 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)における全通風間隙(14)のうち一部の複数の通風間隙(14)でかつ隣接していない通風間隙(14)において、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いる。また、残りの通風間隙(14)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通風間隙(14)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。ここでは、蓄冷材容器(15)が配置された通風間隙(14)の左右両側に隣り合う通風間隙(14)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２つのアウターフィン(16)が位置している。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。   Aluminum in which a regenerator (not shown) is enclosed in a plurality of ventilation gaps (14) of the entire ventilation gap (14) in the heat exchange core section (4) and in the ventilation gaps (14) that are not adjacent to each other. The cold storage material container (15) is disposed so as to straddle both the front and rear refrigerant flow pipes (12). Further, the remaining ventilation gap (14) is made of an aluminum brazing sheet having a brazing filler metal layer on both sides, and has a wave crest extending in the front-rear direction, a wave bottom extending in the front-rear direction, and a connection connecting the wave crest and the wave bottom. The corrugated outer fins (16) made up of the two parts are arranged so as to straddle both the front and rear refrigerant flow pipes (12) to form a pair (13) on both the left and right sides forming a ventilation gap (14). It is brazed to the tube (12). Here, the outer fins (16) are respectively arranged in the ventilation gaps (14) adjacent to the left and right sides of the ventilation gap (14) where the cold storage material container (15) is arranged, and the cold storage materials adjacent in the left-right direction are arranged. Two outer fins (16) are located between the containers (15). 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).

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３〜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扁平状であり、前側冷媒流通管(12)の前側縁よりも後方に位置し、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前側冷媒流通管(12)の前側縁よりも前方（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)および外方張り出し部(19)の内部どうしは通じさせられている。外方張り出し部(19)は、容器本体部(18)の前側縁部の上端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。また、蓄冷材容器(15)の外方張り出し部(19)は、アウターフィン(16)よりも通風方向外側に位置しており、外方張り出し部(19)の下縁部(19a)は、容器本体部(18)（通風方向上流側）に向かって下方に傾斜している。なお、ここでは、容器本体部(18)および外方張り出し部(19)の左右方向の厚みは等しくなっている。   As shown in FIGS. 3 to 6, the cool storage material container (15) has a flat shape in which the longitudinal direction is directed in the up-down direction and the width direction is directed in the front-rear direction, and from the front side edge of the front side refrigerant circulation pipe (12). And the container body (18) brazed to the front and rear refrigerant flow pipes (12) of each set (13), and the front edge (leeward edge of the container body (18)) ), An outer projecting portion (19) provided so as to project forward (outside in the ventilation direction) from the front edge of the front refrigerant circulation pipe (12). The insides of the container main body (18) and the outward projecting portion (19) of the cold storage material container (15) are communicated with each other. The outward projecting part (19) is provided over a certain length from the upper end of the front side edge of the container body part (18), and the vertical length of the outward projecting part (19) is the container body part ( It is shorter than the vertical length of 18). Further, the outwardly projecting portion (19) of the cold storage material container (15) is located on the outer side of the outer fin (16) in the ventilation direction, and the lower edge portion (19a) of the outwardly projecting portion (19) is It inclines downward toward the container body (18) (upstream side in the ventilation direction). Here, the thickness in the left-right direction of the container body (18) and the outwardly projecting portion (19) is equal.

蓄冷材容器(15)の容器本体部(18)の左右両側壁(18a)外面に、それぞれ上端から下端に向かって漸次低くなった複数の凝縮水排水路(21)(22)が間隔をおいて形成されている。ここでは、全体が上方から下方に向かって風上側に傾斜した第１凝縮水排水路(21)と、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(22a)と、上傾斜部(22a)の下端と下傾斜部(22a)の上端とを通じさせる鉛直部(22b)とよりなる第２凝縮水排水路(22)とが設けられている。第２凝縮水排水路(22)は、容器本体部(18)の上下方向の中央部を含むように、上部から下部にかけて形成されている。各凝縮水排水路(21)(22)の上端は容器本体部(18)の上縁または風下側縁部に開口し、上端が容器本体部(18)の上縁に開口した凝縮水排水路(21)(22)の下端は容器本体部(18)の風上側縁部に開口し、上端が容器本体部(18)の風下側縁部に開口した凝縮水排水路(21)(22)の下端は容器本体部(18)の下縁に開口している。各凝縮水排水路(21)(22)は、蓄冷材容器(15)の容器本体部(18)の左右両側壁(18a)に設けられて外方に膨出した２つの凸部(23)の間に形成されており、１つの凝縮水排水路(21)(22)を形成する２つの凸部(23)のうち少なくともいずれか一方の凸部(23)の長さは、蓄冷材容器(15)の容器本体部(18)の通風方向の幅よりも長くなっている。なお、隣り合う２つの凝縮水排水路(21)(22)は、両凝縮水排水路(21)(22)間に位置する凸部(23)を共有している。すべての凸部(23)の膨出頂壁は平坦であるとともに同一平面上に位置しており、凸部(23)の平坦な膨出頂壁が冷媒流通管(12)に接触した状態でろう付されている。容器本体部(18)の左側壁(18a)の凝縮水排水路(21)(22)および凸部(23)と、右側壁(18a)の凝縮水排水路(21)(22)および凸部(23)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。   A plurality of condensate drainage channels (21), (22), which gradually lower from the upper end to the lower end, are spaced from each other on the outer surfaces of the left and right side walls (18a) of the container body (18) of the cool storage material container (15). Is formed. Here, the first condensate drainage channel (21), which is inclined to the windward side from the upper side to the lower side, and the upper and lower sides formed at intervals in the vertical direction and inclined to the windward side from the upper side to the lower side. An inclined portion (22a) and a second condensate drainage channel (22) comprising a vertical portion (22b) passing through the lower end of the upper inclined portion (22a) and the upper end of the lower inclined portion (22a) are provided. . The 2nd condensed water drainage channel (22) is formed from the upper part to the lower part so that the central part of the up-and-down direction of the container main-body part (18) may be included. The upper end of each condensate drainage channel (21) (22) opens to the upper edge or leeward side edge of the container body (18), and the upper end opens to the upper edge of the container body (18). (21) (22) The lower end of the condensate drainage channel (21) (22) opens at the leeward edge of the container body (18) and the upper end opens at the leeward edge of the container body (18). The lower end of the container is opened at the lower edge of the container body (18). Each condensate drainage channel (21), (22) is provided on the left and right side walls (18a) of the container body (18) of the cold storage material container (15) and has two protrusions (23) bulging outward. The length of at least one of the two protrusions (23) that form one condensate drainage channel (21) (22) is as follows: It is longer than the width in the ventilation direction of the container body (18) of (15). Two adjacent condensate drains (21), (22) share a convex portion (23) located between the two condensate drains (21), (22). The bulging top walls of all the convex portions (23) are flat and located on the same plane, and the flat bulging top walls of the convex portions (23) are in contact with the refrigerant flow pipe (12). It is brazed. Condensate drainage channels (21), (22) and projections (23) on the left side wall (18a) of the container body (18) and condensate drainage channels (21) (22) and projections on the right side wall (18a) (23) is provided with a slight deviation in the ventilation direction within the same horizontal plane so that a part thereof overlaps but does not overlap the whole.

蓄冷材容器(15)の容器本体部(18)内には、オフセット状のアルミニウム製インナーフィン(24)が、上下方向のほぼ全体にわたって配置されている。インナーフィン(24)は、上下方向にのびる波頂部(25a)、上下方向にのびる波底部(25b)、および波頂部(25a)と波底部(25b)とを連結する連結部(25c)からなる波状帯板(25)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(25)の波頂部(25a)どうしおよび波底部(25b)どうしが前後方向に位置ずれしているものである。インナーフィン(24)は、蓄冷材容器(15)の容器本体部(18)の左右両側壁(18a)内面、すなわち容器本体部(18)の左右両側壁(18a)の凸部(23)が形成されていない部分にろう付されている。凸部(23)の膨出頂壁は、冷媒流通管(12)に接触するが、インナーフィン(24)には接触しないので、蓄冷材容器(15)の容器本体部(18)の各側壁(18a)に、インナーフィン(24)に接触する接触部分と、インナーフィン(24)に接触しない非接触部分とが設けられていることになる。   In the container main body portion (18) of the cold storage material container (15), an offset aluminum inner fin (24) is disposed over substantially the entire vertical direction. The inner fin (24) includes a wave crest portion (25a) extending in the vertical direction, a wave bottom portion (25b) extending in the vertical direction, and a connecting portion (25c) connecting the wave crest portion (25a) and the wave bottom portion (25b). A plurality of corrugated strips (25) are arranged in the vertical direction and are integrally connected to each other, and are formed by connecting the corrugated strips (25a) adjacent to each other in the vertical direction. (25b) The two are displaced in the front-rear direction. The inner fin (24) has inner surfaces of the left and right side walls (18a) of the container main body (18) of the cold storage material container (15), that is, the convex portions (23) of the left and right side walls (18a) of the container main body (18). The part which is not formed is brazed. The bulging top wall of the convex part (23) contacts the refrigerant flow pipe (12) but does not contact the inner fin (24), so each side wall of the container main body part (18) of the cold storage material container (15) (18a) is provided with a contact portion that contacts the inner fin (24) and a non-contact portion that does not contact the inner fin (24).

蓄冷材容器(15)の外方張り出し部(19)には、通風方向内側寄り（後側寄り）の狭幅部分を除いて、左右両方向に膨らみ、かつ左右方向の寸法が容器本体部(18)の左右方向の寸法よりも大きくなっている膨張部(26)が設けられており、膨張部(26)がアウターフィン(16)よりも通風方向外側（通風方向下流側）に位置しているとともに、膨張部(26)の左右両側壁(26a)が平坦となっている。   The outwardly projecting portion (19) of the cool storage material container (15) swells in both the left and right directions, except for the narrow portion on the inner side (near the rear side) in the ventilation direction, and the dimensions in the left and right direction are the container body (18 ) Is larger than the left-right dimension, and the inflated part (26) is located on the outside in the ventilation direction (downstream in the ventilation direction) with respect to the outer fin (16). At the same time, the left and right side walls (26a) of the expanding portion (26) are flat.

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。蓄冷材容器(15)の内部空間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。蓄冷材は、外方張り出し部(19)の上端部に設けられて上方に開口した蓄冷材注入口(27)を通して蓄冷材容器(15)内に注入されている。蓄冷材注入口(27)は、外方張り出し部(19)の上端部に固定されて外方張り出し部(19)を外部に通じさせる円筒状注入部材(32)の内部に設けられている。蓄冷材注入口(27)は、蓄冷材の蓄冷材容器(15)内への注入後に、注入部材(32)の上部を圧潰することによって閉鎖されている。その結果、外方張り出し部(19)の上端部に、蓄冷材注入口(27)を閉じることにより形成された封止部(28)が存在している。封止部(28)は、外方張り出し部(19)の上端から上方に突出しており、蓄冷機能付きエバポレータ(1)の通風面(F)に対して、上方に向かって容器本体部(18)から離れる方向、ここでは風下側に傾斜している（図３参照）。   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. It is preferable that the cold storage material filling ratio, which is the ratio of the volume of the enclosed cold storage material to the internal volume of the internal space of the cold storage material container (15), is 70 to 90%. The cold storage material is injected into the cold storage material container (15) through the cold storage material inlet (27) provided at the upper end of the outward projecting portion (19) and opened upward. The cold storage material injection port (27) is provided inside the cylindrical injection member (32) which is fixed to the upper end portion of the outward projecting portion (19) and allows the outward projecting portion (19) to communicate with the outside. The cold storage material inlet (27) is closed by crushing the upper portion of the injection member (32) after the cold storage material is injected into the cold storage material container (15). As a result, the sealing part (28) formed by closing the cold storage material inlet (27) is present at the upper end part of the outward projecting part (19). The sealing part (28) protrudes upward from the upper end of the outwardly projecting part (19), and the container main body part (18) upwards with respect to the ventilation surface (F) of the evaporator (1) with a cold storage function. In this case, it is inclined toward the leeward side (see FIG. 3).

蓄冷材容器(15)の強度は、通常の使用環境温度範囲、たとえば−４０〜９０℃の範囲内においては、液相状態の蓄冷材が密度変化するとともに、蓄冷材容器(15)内に残存している空気が熱膨張することにより内圧が上昇したとしても、破損しないような強度に設計されている。   The strength of the cool storage material container (15) is within the normal operating environment temperature range, for example, in the range of -40 to 90 ° C, and the density of the cool storage material in the liquid phase changes and remains in the cool storage material container (15). Even if the internal pressure rises due to thermal expansion of the air being heated, the strength is designed so as not to break.

図６に詳細に示すように、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、かつ周縁部どうしが互いにろう付された２枚の略縦長方形状アルミニウム板(29)(31)よりなる。各アルミニウム板(29)(31)には、容器本体部(18)および外方張り出し部(19)を形成する膨出高さの等しい第１膨出部(29a)(31a)と、第１膨出部(29a)(31a)における容器本体部(18)を形成する部分の膨出頂壁に設けられかつ凸部(23)となる第２膨出部(29b)(31b)と、第１膨出部(29a)(31a)における外方張り出し部(19)を形成する部分の膨出頂壁に設けられかつ膨張部(26)を形成する第３膨出部(29c)(31c)と、第３膨出部(29c)(31c)の上端に連なって上方に延びるように設けられかつ第３膨出部(29c)(31c)内を上方に通じさせる半円筒状の第４膨出部(29d)(31d)とを備えている。ここで、各アルミニウム板(29)(31)を、第２凝縮水排水路(22)の鉛直部(22b)よりも上方に存在する第１凝縮水排水路(21)、ならびに第２凝縮水排水路(22)の上傾斜部(22a)および鉛直部(22b)の上部を形成する上型と、第２凝縮水排水路(22)の下傾斜部(22a)および鉛直部(22b)の下部を形成する下型と、第２凝縮水排水路(22)の鉛直部(22b)の残部を形成する中型とからなる分割型を用いてプレス加工を施すようにすれば、中型のみを交換することにより高さの異なるアルミニウム板を形成することが可能になる。   As shown in detail in FIG. 6, the cold storage container (15) is formed by pressing aluminum brazing sheets having brazing filler metal layers on both sides, and the peripheral portions are brazed to each other 2 It is made of a substantially vertical rectangular aluminum plate (29) (31). Each aluminum plate (29) (31) includes a first bulging portion (29a) (31a) having the same bulging height forming a container body portion (18) and an outwardly projecting portion (19), and a first bulging portion. A second bulging portion (29b) (31b) provided on the bulging top wall of the bulging portion (29a) (31a) forming the container body portion (18) and serving as a convex portion (23); 3rd bulging part (29c) (31c) which is provided in the bulging top wall of the part which forms the outward projecting part (19) in 1 bulging part (29a) (31a) and forms an expanding part (26) And a semi-cylindrical fourth bulge that is provided so as to extend upwardly from the upper ends of the third bulges (29c) (31c) and communicates with the upper part of the third bulges (29c) (31c). And an exit portion (29d) (31d). Here, each aluminum plate (29) (31) is made into the 1st condensed water drainage channel (21) which exists above the vertical part (22b) of the 2nd condensed water drainage channel (22), and the 2nd condensed water. The upper mold that forms the upper slope part (22a) and the upper part of the vertical part (22b) of the drainage channel (22), and the lower slope part (22a) and the vertical part (22b) of the second condensed water drainage channel (22) If a press working is performed using a split mold consisting of a lower mold that forms the lower part and a middle mold that forms the remainder of the vertical part (22b) of the second condensate drainage channel (22), only the middle mold is replaced. By doing so, it becomes possible to form aluminum plates having different heights.

そして、２枚のアルミニウム板(29)(31)を、インナーフィン(24)を間に挟んで第１膨出部(29a)(31a)の開口どうしが対向するとともに、第４膨出部(29d)(31d)間に注入部材(32)の下部に設けられた小径部(32a)が挟まれるように組み合わせ、この状態で両アルミニウム板(29)(31)の周縁部どうし、および両アルミニウム板(29)(31)と注入部材(32)とをろう付することによって蓄冷材容器(15)が形成されている。蓄冷材は、上部が圧潰される前の注入部材(32)内の蓄冷材注入口(27)を通して蓄冷材容器(15)内に注入され、蓄冷材注入口(27)は注入部材(32)の上部を圧潰することにより封止され、これにより封止部(28)が形成されている。蓄冷材注入口(27)を通して蓄冷材容器(15)内に注入される蓄冷材は、外方張り出し部(19)内に入った後、容器本体部(18)に入る。そして、外方張り出し部(19)の下縁部(19a)が、容器本体部(18)に向かって下方に傾斜しているので、蓄冷材注入口(27)を通して蓄冷材容器(15)の外方張り出し部(19)内に注入された蓄冷材は、容器本体部(18)側に流れやすくなる。   The two swelled aluminum plates (29) and (31) are opposed to each other with the openings of the first bulging portions (29a) and (31a) sandwiched between the inner fins (24), and the fourth bulging portion ( 29d) (31d) is combined so that the small diameter portion (32a) provided at the lower portion of the injection member (32) is sandwiched, in this state the peripheral portions of both aluminum plates (29) (31), and both aluminum The cold storage material container (15) is formed by brazing the plates (29) (31) and the injection member (32). The cold storage material is injected into the cold storage material container (15) through the cold storage material injection port (27) in the injection member (32) before the upper part is crushed, and the cold storage material injection port (27) is injected into the injection member (32). The upper part of the film is sealed by crushing, thereby forming a sealed part (28). The cool storage material injected into the cool storage material container (15) through the cool storage material injection port (27) enters the outward projecting portion (19) and then enters the container main body portion (18). And since the lower edge part (19a) of the outward projecting part (19) is inclined downward toward the container body part (18), the cold storage material container (15) of the cold storage material container (15) is passed through the cold storage material injection port (27). The cold storage material injected into the outward projecting portion (19) is likely to flow toward the container main body portion (18).

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。そして、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、通風間隙(14)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 is stopped. 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 has an evaporator with a cold storage function ( It enters into the leeward upper header part (5) of 1) and flows out from the refrigerant outlet (8) of the leeward upper header part (6) through the entire refrigerant flow pipe (12). Then, while the refrigerant flows through the refrigerant flow pipe (12), heat exchange is performed with the air passing through the ventilation gap (14), 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)の容器本体部(18)の左右両側壁(18a)における冷媒流通管(12)にろう付されている凸部(23)の膨出頂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(23)の膨出頂壁から左右両側壁(18a)における冷媒流通管(12)にろう付されていない部分およびインナーフィン(24)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) will flow into the refrigerant flow pipe (12) on the left and right side walls (18a) of the container body (18) of the cool storage material container (15). The refrigerant in the left and right side walls (18a) from the bulging top wall of the convex part (23) is transmitted directly to the cold storage material in the cold storage material container (15) through the bulging top wall of the convex part (23) attached. Cold energy is stored in the regenerator material by being transmitted to the whole regenerator material in the regenerator material container (15) through the portion not brazed to the flow pipe (12) and the inner fin (24).

このとき、蓄冷材容器(15)表面に発生した凝縮水は、凝縮水排水路(21)(22)内に入り、表面張力により凝縮水排水路(21)(22)の両側の凸部(23)に沿うようにして凝縮水排水路(21)(22)内に溜まる。溜まった凝縮水の量が多くなると、溜まった凝縮水に作用する重力が表面張力よりも大きくなり、凝縮水排水路(21)(22)内を一挙に流下する。したがって、凝縮水が凝縮水排水路(21)(22)内に留まる時間が短くなり、蓄冷材容器(15)の外面に発生した凝縮水をスムーズに排水することができる。   At this time, the condensed water generated on the surface of the regenerator container (15) enters the condensed water drainage channel (21) (22), and convex portions on both sides of the condensed water drainage channel (21) (22) due to surface tension ( It accumulates in the condensate drainage channel (21) (22) along 23). When the amount of accumulated condensed water increases, the gravity acting on the accumulated condensed water becomes larger than the surface tension, and flows down in the condensed water drainage channels (21) and (22) all at once. Therefore, the time for the condensed water to stay in the condensed water drainage channels (21) and (22) is shortened, and the condensed water generated on the outer surface of the cold storage material container (15) can be smoothly drained.

圧縮機が停止した場合には、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)の容器本体部(18)の左右両側壁(18a)における冷媒流通管(12)にろう付されている凸部(23)の膨出頂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(24)から左右両側壁(18a)における冷媒流通管(12)にろう付されていない部分および凸部(23)の膨出頂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。そして、アウターフィン(16)を介して蓄冷材容器(15)が配置されている通風間隙(14)の両隣の通風間隙(14)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 energy stored in the cold storage material in the cold storage material container (15) is transferred to the refrigerant distribution pipes on the left and right side walls (18a) of the container body (18) of the cold storage material container (15). (12) is directly transferred to the refrigerant flow pipe (12) through the bulging top wall of the convex portion (23) brazed to the refrigerant flow pipe (12) on the left and right side walls (18a) from the inner fin (24). ) Is transmitted to the refrigerant flow pipe (12) through the part not brazed and the bulging top wall of the convex part (23), and further passes 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). And it is transmitted to the air which passes the ventilation gap (14) of the both sides of the ventilation gap (14) where the cool storage material container (15) is arrange | positioned through an outer fin (16). 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.

周囲の温度が通常の使用環境温度範囲よりも高温、たとえば１００℃になると、液相状態の蓄冷材の密度変化および蓄冷材容器(15)内に残存している空気の熱膨張が顕著になって、蓄冷材容器(15)の内圧が異常に上昇するが、この場合、図７に示すように、蓄冷材容器(15)の外方張り出し部(19)に設けられた膨張部(26)の左右両側壁(26a)が外側に膨らむように変形し、蓄冷材容器(15)の内圧上昇による破損が防止される。しかも、アウターフィン(16)よりも風下側に張り出している外方張り出し部(19)の強度は、冷媒流通管(12)にろう付されている容器本体部(18)の強度よりも低いので、周囲の温度がさらに高温になった場合には、外方張り出し部(19)において蓄冷材容器(15)が破損して蓄冷材が洩れることがあるが、冷媒流通管(12)は蓄冷材容器(15)の破損の影響を受けないので、冷媒流通管(12)の破損が防止される。しかも、蓄冷材の洩れる箇所が決まっているので、洩れた蓄冷材に対応する対策を比較的簡単に講じることができる。   When the ambient temperature is higher than the normal operating environment temperature range, for example, 100 ° C., the density change of the cold storage material in the liquid phase and the thermal expansion of the air remaining in the cold storage container (15) become significant. Thus, the internal pressure of the cool storage material container (15) rises abnormally. In this case, as shown in FIG. 7, the expansion portion (26) provided in the outward projecting portion (19) of the cool storage material container (15). The left and right side walls (26a) are deformed so as to bulge outward, thereby preventing the cold storage material container (15) from being damaged due to an increase in internal pressure. Moreover, the strength of the outwardly projecting portion (19) that projects to the leeward side of the outer fin (16) is lower than the strength of the container body (18) that is brazed to the refrigerant flow pipe (12). If the ambient temperature becomes even higher, the cool storage material container (15) may be damaged in the outwardly projecting portion (19) and the cool storage material may leak, but the refrigerant flow pipe (12) Since the container (15) is not affected by the damage, the refrigerant circulation pipe (12) is prevented from being damaged. And since the location where the cool storage material leaks is decided, the countermeasure corresponding to the leaked cool storage material can be taken comparatively easily.

図８はこの発明による蓄冷機能付きエバポレータに用いられる蓄冷材容器の変形例を示す。   FIG. 8 shows a modification of the cool storage material container used in the evaporator with the cool storage function according to the present invention.

図８に示す蓄冷材容器(40)の場合、容器本体部(18)の左右両側壁(18a)外面に、間隔をおいて形成されかつ上端から下端に向かって漸次低くなった複数の凝縮水排水路(41)は、全体が上方から下方に向かって風上側に傾斜している。各凝縮水排水路(41)の上端は容器本体部(18)の上縁または風下側縁部に開口し、各凝縮水排水路(41)の上端は容器本体部(18)の上縁または風下側縁部に開口し、上端が容器本体部(18)の上縁に開口した凝縮水排水路(41)の下端は容器本体部(18)の風上側縁部に開口し、上端が容器本体部(18)の風下側縁部に開口した凝縮水排水路(41)の下端は容器本体部(18)の下縁に開口している。各凝縮水排水路(41)は、蓄冷材容器(15)の容器本体部(18)の左右両側壁(18a)に設けられて外方に膨出した２つの凸部(42)の間に形成されており、１つの凝縮水排水路(41)を形成する２つの凸部(42)のうち少なくともいずれか一方の凸部(42)の長さは、蓄冷材容器(15)の容器本体部(18)の通風方向の幅よりも長くなっている。なお、隣り合う２つの凝縮水排水路(41)は、両凝縮水排水路(41)間に位置する凸部(42)を共有している。すべての凸部(42)の膨出頂壁は平坦であるとともに同一平面上に位置しており、凸部(42)の平坦な膨出頂壁が冷媒流通管(12)に接触した状態でろう付されている。図示は省略したが、容器本体部(18)の左側壁(18a)の凝縮水排水路(41)および凸部(42)と、右側壁の凝縮水排水路および凸部とは、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。   In the case of the regenerator container (40) shown in FIG. 8, a plurality of condensed water formed on the outer surfaces of the left and right side walls (18a) of the container body (18) at intervals and gradually lowering from the upper end to the lower end. The entire drainage channel (41) is inclined to the windward side from the upper side to the lower side. The upper end of each condensate drainage channel (41) opens to the upper edge or leeward edge of the container body (18), and the upper end of each condensate drainage channel (41) is the upper edge of the container body (18) or The lower end of the condensate drainage channel (41) that opens to the leeward edge and the upper end opens to the upper edge of the container body (18) opens to the windward edge of the container body (18), and the upper end of the container The lower end of the condensed water drainage channel (41) opened at the leeward side edge of the main body (18) opens at the lower edge of the container main body (18). Each condensate drainage channel (41) is provided between the two convex portions (42) provided on the left and right side walls (18a) of the container body (18) of the cold storage material container (15) and bulging outward. The length of at least one of the two protrusions (42) of the two protrusions (42) forming one condensed water drainage channel (41) is the container body of the regenerator container (15). It is longer than the width of the portion (18) in the ventilation direction. Two adjacent condensate drainage channels (41) share a convex portion (42) located between the two condensate drainage channels (41). The bulging top walls of all the convex portions (42) are flat and located on the same plane, and the flat bulging top walls of the convex portions (42) are in contact with the refrigerant flow pipe (12). It is brazed. Although not shown, the condensate drainage channel (41) and the convex portion (42) on the left side wall (18a) of the container main body (18) partially overlap with the condensate drainage channel and the convex portion on the right side wall. However, it is provided slightly shifted in the ventilation direction in the same horizontal plane so as not to overlap the whole.

その他の構成は、上述した蓄冷材容器(15)と同様であり、同一部分には同一符号を付す。なお、蓄冷材容器(40)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にプレス加工が施されることにより形成され、かつ周縁部どうしが互いにろう付された２枚の略縦長方形状アルミニウム板(29)(31)よりなる。各アルミニウム板(29)(31)には、容器本体部(18)および外方張り出し部(19)を形成する膨出高さの等しい第１膨出部(29a)(31a)と、第１膨出部(29a)(31a)における容器本体部(18)を形成する部分の膨出頂壁に設けられかつ凸部(42)となる第２膨出部(29b)(31b)と、第１膨出部(29a)(31a)における外方張り出し部(19)を形成する部分の膨出頂壁に設けられかつ膨張部(26)を形成する第３膨出部(29c)(31c)と、第３膨出部(29c)(31c)の上端に連なって上方に延びるように設けられかつ第３膨出部(29c)(31c)内を上方に通じさせる半円筒状の第４膨出部(29d)(31d)とを備えている。   Other configurations are the same as those of the cold storage material container (15) described above, and the same portions are denoted by the same reference numerals. The cold storage container (40) is also formed by pressing two aluminum brazing sheets having a brazing filler metal layer on both sides, and two substantially vertical rectangular aluminum pieces whose peripheral portions are brazed to each other. It consists of plates (29) and (31). Each aluminum plate (29) (31) includes a first bulging portion (29a) (31a) having the same bulging height forming a container body portion (18) and an outwardly projecting portion (19), and a first bulging portion. A second bulging portion (29b) (31b) provided on the bulging top wall of the bulging portion (29a) (31a) forming the container main body portion (18) and serving as a convex portion (42); 3rd bulging part (29c) (31c) which is provided in the bulging top wall of the part which forms the outward projecting part (19) in 1 bulging part (29a) (31a) and forms an expanding part (26) And a semi-cylindrical fourth bulge that is provided so as to extend upwardly from the upper ends of the third bulges (29c) (31c) and communicates with the upper part of the third bulges (29c) (31c). And an exit portion (29d) (31d).

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
(12)：冷媒流通管
(13)：管組
(14)：通風間隙
(15)(40)：蓄冷材容器
(16)：アウターフィン
(18)：容器本体部
(19)：外方張り出し部
(19a)：下縁部
(21)(22)：凝縮水排水路
(22a)：傾斜部
(22b)：鉛直部
(23)：凸部
(24)：インナーフィン
(26)：膨張部
(26a)：左右両側壁
(27)：蓄冷材注入口
(28)：封止部
(F)：通風面
(1): Evaporator with cool storage function
(12): Refrigerant distribution pipe
(13): Tube assembly
(14): Ventilation gap
(15) (40): Cold storage container
(16): Outer fin
(18): Container body
(19): Outward projecting part
(19a): Lower edge
(21) (22): Condensate drainage channel
(22a): Inclined part
(22b): Vertical section
(23): Convex
(24): Inner fin
(26): Expansion part
(26a): Left and right side walls
(27): Cold storage material inlet
(28): Sealing part
(F): Ventilation surface

Claims (8)

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ており、隣り合う冷媒流通管どうしの間に通風間隙が形成され、全通風間隙のうち一部の複数の通風間隙に蓄冷材が封入された蓄冷材容器が配置され、残りの通風間隙にフィンが配置されて冷媒流通管に接合されており、蓄冷材容器が、冷媒流通管に接合された容器本体部を備えている蓄冷機能付きエバポレータであって、
容器本体部の左右両側壁外面に、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が間隔をおいて形成されており、各凝縮水排水路が、蓄冷材容器の容器本体部の左右両側壁に設けられて外方に膨出した２つの凸部の間に形成され、１つの凝縮水排水路を形成する２つの凸部のうち少なくともいずれか一方の凸部の長さが、蓄冷材容器の容器本体部の通風方向の幅よりも長くなっており、
蓄冷材容器の容器本体部の左右両側壁外面に設けられたすべての凝縮水排水路のうちの一部の凝縮水排水路が、全体に上方から下方に向かって風上側に傾斜しており、残りの凝縮水排水路が、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と、上傾斜部の下端と下傾斜部の上端とを通じさせる鉛直部とよりなり、各凝縮水排水路の上端が容器本体部の上縁または風下側縁部に開口し、上端が容器本体部の上縁に開口した凝縮水排水路の下端が容器本体部の風上側縁部に開口し、上端が容器本体部の風下側縁部に開口した凝縮水排水路の下端が容器本体部の下縁に開口し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 vertical direction and whose width direction faces the ventilation direction are arranged in parallel at intervals in the thickness direction of the refrigerant flow pipe, and adjacent refrigerant flow pipes Ventilation gaps are formed between them, a cool storage material container in which cool storage materials are sealed in a plurality of ventilation gaps among all the ventilation gaps is arranged, and fins are arranged in the remaining ventilation gaps and joined to the refrigerant distribution pipe The evaporator with cold storage function, the cold storage container is provided with a container body joined to the refrigerant flow pipe,
A plurality of condensate drainage channels that are gradually lowered from the upper end to the lower end and open at both upper and lower ends are formed at intervals on the outer surfaces of the left and right side walls of the container body. At least one of the two convex portions formed between the two convex portions provided on the left and right side walls of the container main body portion of the material container and bulging outward is formed. The length of the convex part is longer than the width in the ventilation direction of the container body part of the cold storage material container ,
Some of the condensate drainage channels of all the condensate drainage channels provided on the outer surfaces of the left and right side walls of the container body portion of the regenerator material container are inclined to the windward side from the top to the bottom, The remaining condensate drainage channel is vertically formed through an up-and-down inclined portion that is formed at an interval in the up-down direction and that is inclined upward on the windward side from above, and a lower end of the upper inclined portion and an upper end of the lower inclined portion. And the upper end of each condensate drainage channel opens to the upper edge or leeward side edge of the container body, and the lower end of the condensate drainage channel opens to the upper edge of the container body. An evaporator with a cold storage function having an opening at the windward edge and an upper end opened at the lower edge of the container main body with the lower end of the condensed water drainage channel opened at the lower edge of the container main body . 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ており、隣り合う冷媒流通管どうしの間に通風間隙が形成され、全通風間隙のうち一部の複数の通風間隙に蓄冷材が封入された蓄冷材容器が配置され、残りの通風間隙にフィンが配置されて冷媒流通管に接合されており、蓄冷材容器が、冷媒流通管に接合された容器本体部を備えている蓄冷機能付きエバポレータであって、
容器本体部の左右両側壁外面に、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が間隔をおいて形成されており、各凝縮水排水路が、蓄冷材容器の容器本体部の左右両側壁に設けられて外方に膨出した２つの凸部の間に形成され、１つの凝縮水排水路を形成する２つの凸部のうち少なくともいずれか一方の凸部の長さが、蓄冷材容器の容器本体部の通風方向の幅よりも長くなっており、
蓄冷材容器の容器本体部の左右両側壁外面に設けられたすべての凝縮水排水路が、全体に上方から下方に向かって風上側に傾斜しており、各凝縮水排水路の上端が容器本体部の上縁または風下側縁部に開口し、上端が容器本体部の上縁に開口した凝縮水排水路の下端が容器本体部の風上側縁部に開口し、上端が容器本体部の風下側縁部に開口した凝縮水排水路の下端が容器本体部の下縁に開口し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 vertical direction and whose width direction faces the ventilation direction are arranged in parallel at intervals in the thickness direction of the refrigerant flow pipe, and adjacent refrigerant flow pipes Ventilation gaps are formed between them, a cool storage material container in which cool storage materials are sealed in a plurality of ventilation gaps among all the ventilation gaps is arranged, and fins are arranged in the remaining ventilation gaps and joined to the refrigerant distribution pipe The evaporator with cold storage function, the cold storage container is provided with a container body joined to the refrigerant flow pipe,
A plurality of condensate drainage channels that are gradually lowered from the upper end to the lower end and open at both upper and lower ends are formed at intervals on the outer surfaces of the left and right side walls of the container body. At least one of the two convex portions formed between the two convex portions provided on the left and right side walls of the container main body portion of the material container and bulging outward is formed. The length of the convex part is longer than the width in the ventilation direction of the container body part of the cold storage material container,
All the condensate drainage channels provided on the outer wall of the left and right side walls of the container body part of the cool storage material container are inclined upward on the whole from the upper side to the lower side, and the upper end of each condensate drainage channel is the container body Open at the upper edge or leeward edge of the container, the lower end of the condensate drainage channel with the upper end opened at the upper edge of the container body, and the upper edge opened at the windward edge of the container body, and the upper end of the container body An evaporator with a cold storage function in which the lower end of the condensate drainage channel opened at the side edge is opened at the lower edge of the container body . 蓄冷材容器の容器本体部の凸部の突出端が冷媒流通管に接合され、蓄冷材容器の容器本体部内にインナーフィンが配置されるとともに、容器本体部の左右両側壁における凝縮水排水路の底部を形成する部分に接合され、容器本体部の左側壁の凝縮水排水路および凸部と、右側壁の凝縮水排水路および凸部とが、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ずれて設けられている請求項１または２記載の蓄冷機能付きエバポレータ。 The protruding end of the convex part of the container body part of the cool storage material container is joined to the refrigerant flow pipe, inner fins are arranged in the container body part of the cool storage material container, and the condensate drainage channels on the left and right side walls of the container body part Ventilation in the same horizontal plane so that the condensate drainage channel and the convex part on the left side wall of the container body part and the condensate drainage channel and the convex part on the right side wall are not overlapped with each other. The evaporator with a cool storage function according to claim 1 or 2, wherein the evaporator is provided in a shifted direction . 蓄冷材容器が、容器本体部の風下側縁部または風上側縁部に連なって冷媒流通管よりも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を備えており、当該外方張り出し部に、容器本体部に対して左右両方向のうち少なくとも一方向に膨らみ、かつ左右方向の寸法が容器本体部の左右方向の寸法よりも大きくなっている膨張部が設けられ、当該膨張部がフィンよりも通風方向外側に位置しているとともに、膨張部の左右両側壁が平坦となっている請求項１〜３のうちのいずれかに記載の蓄冷機能付きエバポレータ。 The cool storage material container includes an outward projecting portion that is connected to the leeward edge or the windward edge of the container main body so as to project outward from the refrigerant circulation pipe in the ventilation direction. The container is provided with an inflating portion that swells in at least one of the left and right directions with respect to the container main body and has a horizontal dimension larger than the horizontal dimension of the container main body. The evaporator with a cool storage function according to any one of claims 1 to 3, wherein the evaporator is located on the outer side in the ventilation direction and has flat left and right side walls . 蓄冷材容器の外方張り出し部が、容器本体部の風下側縁部または風上側縁部の上端から一定の長さを有し、かつ当該風下側縁部または風上側縁部の上下方向の全長のうちの一部分のみに連なって冷媒流通管よりも通風方向外側に張り出すように設けられている請求項４記載の蓄冷機能付きエバポレータ。 The outwardly extending portion of the cold storage material container has a certain length from the upper end of the leeward side edge or the windward edge of the container body, and the total length in the vertical direction of the leeward side edge or the windward edge The evaporator with a cool storage function of Claim 4 provided so that it may continue to only one part of them and may protrude outside a refrigerant | coolant distribution pipe in the ventilation direction . 蓄冷材容器の外方張り出し部に、蓄冷材を蓄冷材容器内に注入するのに用いられた蓄冷材注入口を閉じることにより形成された封止部が存在している請求項４または５記載の蓄冷機能付きエバポレータ。 6. The sealing part formed by closing the cool storage material injection port used for inject | pouring a cool storage material into a cool storage material container exists in the outward projecting part of a cool storage material container. Evaporator with cold storage function. 前記封止部が、外方張り出し部の上端から上方に突出して形成され、当該封止部が、通風面に対して、上方に向かって容器本体部から離れる方向に傾斜している請求項６記載の蓄冷機能付きエバポレータ。 The said sealing part is projected and formed upwards from the upper end of an outward projecting part, and the said sealing part inclines in the direction away from a container main-body part toward upper direction with respect to a ventilation surface. Evaporator with cold storage function described. 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き、かつ通風方向に間隔をおいて配置された複数の扁平状冷媒流通管からなる管組が、冷媒流通管の厚み方向に間隔をおいて複数配置され、隣り合う管組どうしの間に通風間隙が形成されている請求項１〜７のうちのいずれかに記載の蓄冷機能付きエバポレータ。 A pipe assembly composed of a plurality of flat refrigerant flow pipes whose longitudinal direction faces the up-down direction and whose width direction faces the ventilation direction and is spaced apart in the ventilation direction is spaced apart in the thickness direction of the refrigerant flow pipe. The evaporator with a cool storage function according to any one of claims 1 to 7, wherein a plurality of air flow gaps are formed between adjacent tube sets .
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