JP5194241B2 - Evaporator with cool storage function - Google Patents
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- JP5194241B2 JP5194241B2 JP2009085636A JP2009085636A JP5194241B2 JP 5194241 B2 JP5194241 B2 JP 5194241B2 JP 2009085636 A JP2009085636 A JP 2009085636A JP 2009085636 A JP2009085636 A JP 2009085636A JP 5194241 B2 JP5194241 B2 JP 5194241B2
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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.
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、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 material container having a regenerator material enclosed therein, and a plurality of sets of refrigerant circulation pipes and regenerator material containers are arranged at intervals, the refrigerant circulation tube and the regenerator material A part between adjacent sets of containers is formed as a ventilation gap, and fins are arranged in the ventilation gap and joined to the refrigerant flow pipe and the regenerator container (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、空気がエバポレータの通風間隙を通過する際に、蓄冷材容器の風上側を向いた部分に高温の空気が当たるので、蓄冷材容器内の冷却された蓄冷材が加熱されることになり、蓄冷効率が低下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、蓄冷効率の低下を防止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。 The objective of this invention is providing the evaporator with a cool storage function which can solve the said problem and can prevent the fall of cool storage efficiency.
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)幅方向を通風方向に向けるとともに、互いに間隔をおいて並列状に配置された複数の扁平状冷媒流通管部を有しており、隣り合う冷媒流通管部どうしの間に通風間隙が形成され、全通風間隙のうち少なくとも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て冷媒流通管部に接触させられ、蓄冷材容器の風上側を向いた部分が断熱材により覆われている蓄冷機能付きエバポレータ。 1) It has a plurality of flat refrigerant flow pipe parts arranged in parallel with a gap between each other, with the width direction facing the ventilation direction, and a ventilation gap is formed between adjacent refrigerant flow pipe parts The cool storage material container in which the cool storage material is sealed is disposed in at least some of the plurality of ventilation gaps and is brought into contact with the refrigerant circulation pipe portion, and the portion facing the windward side of the cool storage material container is Evaporator with cool storage function covered with heat insulating material.
2)蓄冷材容器の厚み方向の寸法である容器高さが、通風間隙の幅に等しくなっており、全通風間隙のうち一部の複数の通風間隙に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いる上記1)記載の蓄冷機能付きエバポレータ。 2) The container height, which is the dimension in the thickness direction of the cool storage material container, is equal to the width of the ventilation gap, and the cool storage material containers are arranged in some of the ventilation gaps, and the remaining ventilation The evaporator with a cold storage function as described in 1) above, wherein fins are arranged in the gap.
3)蓄冷材容器の厚み方向の寸法である容器高さが通風間隙の幅よりも低くなっており、蓄冷材容器の片面が、１つの通風間隙を構成する隣り合う２つの冷媒流通管部のうちのいずれか一方の冷媒流通管部の片面に接触させられ、同他方の冷媒流通管部と蓄冷材容器の他面との間にフィンが配置されている上記1)記載の蓄冷機能付きエバポレータ。 3) The container height, which is the dimension in the thickness direction of the cold storage material container, is lower than the width of the ventilation gap, and one side of the cold storage material container has two adjacent refrigerant flow pipe parts constituting one ventilation gap. The evaporator with a cold storage function according to the above 1), wherein the evaporator is brought into contact with one surface of any one of the refrigerant flow pipe portions, and fins are disposed between the other refrigerant flow pipe portion and the other surface of the cold storage material container. .
4)全通風間隙に蓄冷材容器とフィンとが配置されている上記3)記載の蓄冷機能付きエバポレータ。 4) The evaporator with a cool storage function as described in 3) above, wherein a cool storage material container and fins are arranged in the entire ventilation gap.
5)複数の冷媒流通管部が通風方向に並んで配置されるとともに、蓄冷材容器が通風方向に並んだ冷媒流通管部に跨って接触させられており、蓄冷材容器の風上側の縁部が、最も風上側に位置する冷媒流通管部の風上側の縁部と合致した位置にあり、断熱材が、最も風上側に位置する冷媒流通管部の風上側の縁部よりも風上側に突出している上記1)〜4)のうちのいずれかに記載の蓄冷機能付きエバポレータ。 5) A plurality of refrigerant flow pipes are arranged side by side in the ventilation direction, and the cool storage material container is in contact with the refrigerant flow pipe parts arranged in the ventilation direction, and the edge on the windward side of the cool storage material container Is located at the position that matches the edge of the windward side of the refrigerant flow pipe portion that is located on the most windward side, and the heat insulating material is located on the windward side of the edge of the windward side of the refrigerant flow pipe portion that is located on the most windward side. The evaporator with a cold storage function according to any one of 1) to 4), which protrudes.
上記1)の蓄冷機能付きエバポレータによれば、全通風間隙のうち少なくとも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て冷媒流通管部に接触させられ、蓄冷材容器の風上側を向いた部分が断熱材により覆われているので、空気がエバポレータの通風間隙を通過する際に、蓄冷材容器の風上側を向いた部分に高温の空気が当たったとしても、蓄冷材容器内の冷却された蓄冷材が高温の空気により加熱されることが防止される。したがって、蓄冷効率の低下を防止することができる。 According to the evaporator with a cool storage function of 1) above, a cool storage material container in which a cool storage material is sealed is disposed in at least some of the plurality of ventilation gaps, and is brought into contact with the refrigerant circulation pipe portion. Since the part facing the windward side of the material container is covered with the heat insulating material, even if high-temperature air hits the part facing the windward side of the cold storage material container when the air passes through the ventilation gap of the evaporator The cooled regenerator material in the regenerator material container is prevented from being heated by high-temperature air. Therefore, it is possible to prevent the cool storage efficiency from decreasing.
上記2)の蓄冷機能付きエバポレータによれば、有効コア面積を特許文献１記載の蓄冷機能付きエバポレータと等しくした場合であっても、冷媒流通管部の数は減少しない。したがって、冷却性能の低下を抑制することができる。
According to the evaporator with a cold storage function of 2) above, even if the effective core area is made equal to the evaporator with a cold storage function described in
上記3)および4)の蓄冷機能付きエバポレータによれば、エンジンが停止して圧縮機が停止した際に、蓄冷材容器内の蓄冷材の有する冷熱が、蓄冷材容器の片面側の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。 According to the evaporator with the cold storage function of 3) and 4) above, when the engine is stopped and the compressor is stopped, the cold heat of the cold storage material in the cold storage material container is passed through the fin on one side of the cold storage material container. Since it is transmitted to the air passing through the ventilation gap, the cooling performance is improved.
上記5)の蓄冷機能付きエバポレータによれば、断熱材を比較的簡単に蓄冷材容器に取り付けることができる。 According to the evaporator with a cool storage function of 5) above, the heat insulating material can be attached to the cool storage material container relatively easily.
以下、この発明の実施形態を、図面を参照して説明する。なお、全図面を通じて同一部分および同一物には同一符号を付して重複する説明を省略する。 Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same part and the same thing through all drawings, and the overlapping description is abbreviate | omitted.
以下の説明において、通風方向下流側（図１、図２および図４〜図６に矢印Ｘで示す方向）を前、これと反対側を後というものとし、後方から前方を見た際の上下、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, the downstream side in the ventilation direction (the direction indicated by the arrow X in FIGS. 1, 2, and 4 to 6) is the front, the opposite side is the rear, and the top and bottom when looking forward from the rear , Left and right, that is, up and down 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および図３はその要部の構成を示す。 FIG. 1 shows the overall configuration of an evaporator with a cold storage function according to the present invention, and FIGS. 2 and 3 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、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)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)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、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 integrated with the refrigerant inlet header (5) located on the front side (downstream in the ventilation direction) and the refrigerant inlet header (5) located on the rear side (upstream in the ventilation direction). And a refrigerant outlet header portion (6). 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 connected to each other by an appropriate means (not shown).
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(12)（冷媒流通管部）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いる。前側の冷媒流通管(12)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(12)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。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。 The heat exchange core (4) has a flat refrigerant flow pipe (12) (refrigerant made of a plurality of aluminum extruded sections, with a plurality of, in this case, arranged in the front-rear direction with the width direction facing the front-rear direction and spaced apart in the front-rear direction. A plurality of sets (13) composed of (circulation pipe portions) are arranged at intervals in the left-right direction. The upper end of the front refrigerant flow pipe (12) 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 (12) is connected to the refrigerant outlet header (6), and the lower end is connected to the second intermediate header (11). A ventilation gap (14) is formed between adjacent ones of the set (13) comprising the front and rear refrigerant flow pipes (12).
図１〜図３に示すように、全通風間隙(14)のうち一部の複数の通風間隙(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。蓄冷材容器(15)の厚み方向の寸法である容器高さは通風間隙(14)の幅に等しくなっており、蓄冷材容器(15)の左右両側面は、通風間隙(14)を形成する左右両側の組(13)をなす前後両冷媒流通管(12)に接触させられてろう付されている。蓄冷材容器(15)内は全体に１つの空間となっている。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るコルゲートフィン(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。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コルゲートフィン(16)が配置されて前後両冷媒流通管(12)にろう付され、さらに左右両端のコルゲートフィン(16)の外側にアルミニウム製サイドプレート(17)が配置されてコルゲートフィン(16)にろう付されている。 As shown in FIGS. 1 to 3, an aluminum regenerator container (15) in which a regenerator material (not shown) is enclosed in a part of the plurality of air gaps (14) out of all the air gaps (14), It is arranged so as to straddle both the front and rear refrigerant flow pipes (12). The container height, which is a dimension in the thickness direction of the cold storage material container (15), is equal to the width of the ventilation gap (14), and the left and right sides of the cold storage material container (15) form the ventilation gap (14). The front and rear refrigerant flow pipes (12) forming a pair (13) on both the left and right sides are brought into contact with and brazed. The inside of the cool storage material container (15) is one space as a whole. Further, in the remaining ventilation gap (14), a corrugated fin (16) made of an aluminum brazing sheet having a brazing filler metal layer on both sides is disposed so as to straddle both the front and rear refrigerant flow pipes (12), and the ventilation gap (14) Are brazed to both the front and rear refrigerant flow pipes (12) constituting the left and right set (13). In addition, corrugated fins (16) made of aluminum brazing sheets having brazing filler metal layers on both sides are also arranged outside the set (13) of the refrigerant flow pipes (12) at both the left and right ends, and the front and rear refrigerant flow pipes (12) are arranged. Further, aluminum side plates (17) are disposed outside the corrugated fins (16) at both the left and right ends, and are brazed to the corrugated fins (16).
後側（風上側）の冷媒流通管(12)の後側縁部、蓄冷材容器(15)の後側（風上側）の側面、およびコルゲートフィン(16)の後側縁部は同一垂直面上に位置している。そして、蓄冷材容器(15)の後側面（風上側を向いた面）に断熱材(18)が接着されており、蓄冷材容器(15)の後側面の全体が断熱材(18)により覆われている。なお、断熱材(18)は後側冷媒流通管(12)の後側面を覆っていてもよい。断熱材(18)は後側の冷媒流通管(12)の後側縁部よりも後方に突出している。蓄冷材容器(15)内に封入される蓄冷材としては、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を用いることが好ましい。 The rear edge of the rear (windward) refrigerant flow pipe (12), the rear (windward) side of the cool storage material container (15), and the rear edge of the corrugated fin (16) are the same vertical surface. Located on the top. The heat insulating material (18) is adhered to the rear side surface (the surface facing the windward side) of the cold storage material container (15), and the entire rear side surface of the cold storage material container (15) is covered with the heat insulating material (18). It has been broken. The heat insulating material (18) may cover the rear side surface of the rear refrigerant flow pipe (12). The heat insulating material (18) protrudes rearward from the rear edge of the rear refrigerant flow pipe (12). As the cool storage material enclosed in the cool storage material container (15), it is preferable to use a water-based, paraffin-based or the like whose freezing point is adjusted to about 3 to 10 ° C.
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(12)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、第２中間ヘッダ部(11)内に入った後、後側の全冷媒流通管(12)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(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 ( 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 portion (5) of the attached evaporator (1), and flows into the first intermediate header portion (9) through the front all refrigerant circulation pipe (12). The refrigerant that has entered the first intermediate header portion (9) enters the second intermediate header portion (11), and then passes through the rear refrigerant flow pipe (12) into the outlet header portion (6). It flows in and flows out from the refrigerant outlet (8). 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.
このとき、蓄冷材容器(15)内の蓄冷材が、蓄冷材容器(15)の左右両側の組(13)をなす前後両冷媒流通管(12)内を流れる冷媒によって冷却され、その結果蓄冷材が凝固して冷熱が蓄えられる。ここで、断熱材(18)の働きによって、高温の空気が蓄冷材容器(15)の後側面に直接当たることが防止されるとともに、高温の空気の有する熱が蓄冷材容器(15)内の蓄冷材に伝わることが防止され、蓄冷材に効率良く冷熱が蓄えられる。 At this time, the regenerator material in the regenerator container (15) is cooled by the refrigerant flowing in the front and rear refrigerant flow pipes (12) forming the left and right sets (13) of the regenerator container (15), and as a result The material solidifies and cold energy is stored. Here, the action of the heat insulating material (18) prevents the hot air from directly hitting the rear side of the cool storage material container (15), and the heat of the high temperature air in the cool storage material container (15). Transmission to the cold storage material is prevented, and cold energy is efficiently stored in the cold storage material.
圧縮機が停止した場合には、蓄冷材容器(15)内の蓄冷材の有する冷熱が、蓄冷材容器(15)の左右両側面から冷媒流通管(12)および当該冷媒流通管(12)にろう付されているコルゲートフィン(16)を介して通風間隙(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 heat of the cold storage material in the cold storage material container (15) is transferred from the left and right side surfaces of the cold storage material container (15) to the refrigerant flow pipe (12) and the refrigerant flow pipe (12). It is transmitted to the air passing through the ventilation gap (14) through the brazed corrugated 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.
図４および図５はアルミニウム製蓄冷材容器(15)の変形例を示す。 4 and 5 show a modification of the aluminum cold storage container (15).
図４に示す蓄冷材容器(20)の場合、蓄冷材容器(20)の厚み方向の寸法である容器高さは通風間隙(14)の左右方向の幅よりも低くなっており、蓄冷材容器(20)の片面が、１つの通風間隙(14)を形成する左右両側の組(13)のうちいずれか一方の組(13)を構成する前後両冷媒流通管(12)の片面にろう付されている。また、蓄冷材容器(20)の他面と、１つの通風間隙(14)を形成する左右両側の組(13)のうち他方の組(13)を構成する前後両冷媒流通管(12)との間に、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るコルゲートフィン(21)が配置されて蓄冷材容器(20)および前後両冷媒流通管(12)にろう付されている。 In the case of the cool storage material container (20) shown in FIG. 4, the container height, which is the dimension in the thickness direction of the cool storage material container (20), is lower than the width in the left-right direction of the ventilation gap (14). One side of (20) is brazed to one side of both the front and rear refrigerant flow pipes (12) constituting one set (13) of the left and right side sets (13) forming one ventilation gap (14). Has been. The other side of the cool storage material container (20) and the front and rear refrigerant flow pipes (12) constituting the other set (13) of the left and right set (13) forming one ventilation gap (14), Between them, corrugated fins (21) made of an aluminum brazing sheet having brazing material layers on both sides are disposed and brazed to the cold storage material container (20) and the front and rear refrigerant flow pipes (12).
そして、蓄冷材容器(20)の後側面（風上側を向いた面）に断熱材(18)が接着されており、蓄冷材容器(20)の後側面の全体が断熱材(18)により覆われている。なお、断熱材(18)は後側冷媒流通管(12)の後側面を覆っていてもよい。 The heat insulating material (18) is bonded to the rear side surface (the surface facing the windward side) of the cold storage material container (20), and the entire rear side surface of the cold storage material container (20) is covered with the heat insulating material (18). It has been broken. The heat insulating material (18) may cover the rear side surface of the rear refrigerant flow pipe (12).
ここで、全通風間隙(14)に蓄冷材容器(20)とコルゲートフィン(21)とが配置されていてもよいし、一部の複数の通風間隙(14)に蓄冷材容器(20)とコルゲートフィン(21)とが配置されていてもよい。また、蓄冷材容器(20)内は全体に１つの空間となっている。 Here, the regenerator container (20) and the corrugated fins (21) may be disposed in all the ventilation gaps (14), or the regenerator container (20) and some of the plurality of ventilation gaps (14). Corrugated fins (21) may be arranged. Moreover, the inside of the cool storage material container (20) becomes one space as a whole.
その他の構成は、上述した蓄冷機能付きエバポレータの蓄冷材容器(20)と同様である。 The other configuration is the same as that of the cold storage material container (20) of the evaporator with the cold storage function described above.
図５に示す蓄冷材容器(25)の場合、蓄冷材容器(25)内が、長手方向にのびるとともに相互に間隔をおいて設けられた仕切壁(26)により複数の空間(27)に区画されている。 In the case of the cool storage material container (25) shown in FIG. 5, the cool storage material container (25) is partitioned into a plurality of spaces (27) by partition walls (26) extending in the longitudinal direction and spaced from each other. Has been.
その他の構成は、図４に示す蓄冷材容器(20)と同様である。 The other structure is the same as that of the cool storage material container (20) shown in FIG.
図６は冷媒流通管部の変形例を示す。 FIG. 6 shows a modification of the refrigerant flow pipe section.
図６に示す冷媒流通管部(30)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(31)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(32)に、前後方向に間隔をおいて設けられている。すなわち、２つの冷媒流通管部(30)が、扁平中空体(32)を構成する両アルミニウム板(31)間に、前後方向に並んで膨出状に形成されている。この場合、上下のヘッダタンクも扁平中空体(32)に設けられた複数の膨出状のタンク形成部により構成される。 The refrigerant flow pipe part (30) shown in FIG. 6 is a flat hollow body formed by brazing the peripheral parts with two aluminum plates (31) facing each other, as in the case of a so-called laminated evaporator. (32) is provided at intervals in the front-rear direction. That is, the two refrigerant flow pipe portions (30) are formed in a bulging shape along the front-rear direction between the aluminum plates (31) constituting the flat hollow body (32). In this case, the upper and lower header tanks are also constituted by a plurality of bulged tank forming portions provided in the flat hollow body (32).
なお、図６に示す例では、図４に示す蓄冷材容器(20)およびコルゲートフィン(21)が用いられているが、図５に示す蓄冷材容器(25)およびコルゲートフィン(21)が用いられてもよいし、あるいは図２に示す蓄冷材容器(15)およびコルゲートフィン(16)が用いられてもよい。 In the example shown in FIG. 6, the cool storage material container (20) and the corrugated fin (21) shown in FIG. 4 are used, but the cool storage material container (25) and the corrugated fin (21) shown in FIG. 5 are used. Alternatively, the cold storage material container (15) and the corrugated fin (16) shown in FIG. 2 may be used.
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（冷媒流通管部）
(14)：通風間隙
(15)(20)(25)：蓄冷材容器
(16)(21)：コルゲートフィン
(18)：断熱材
(30)：冷媒流通管部
(1): Evaporator with cool storage function
(12): Refrigerant distribution pipe (refrigerant distribution pipe section)
(14): Ventilation gap
(15) (20) (25): Cold storage container
(16) (21): Corrugated fin
(18): Insulation
(30): Refrigerant distribution pipe
Claims (5)
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| JP2009085636A JP5194241B2 (en) | 2009-03-31 | 2009-03-31 | Evaporator with cool storage function |
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| JP2009085636A JP5194241B2 (en) | 2009-03-31 | 2009-03-31 | Evaporator with cool storage function |
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| JP2010234974A JP2010234974A (en) | 2010-10-21 |
| JP5194241B2 true JP5194241B2 (en) | 2013-05-08 |
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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 |
| JP5862507B2 (en) * | 2012-08-07 | 2016-02-16 | 株式会社デンソー | Cold storage heat exchanger |
| JP6214242B2 (en) * | 2013-06-28 | 2017-10-18 | 株式会社ケーヒン・サーマル・テクノロジー | Heat exchanger |
| JP6128188B2 (en) * | 2015-11-09 | 2017-05-17 | 株式会社デンソー | Cold storage heat exchanger |
| JP6643932B2 (en) * | 2016-03-24 | 2020-02-12 | 株式会社ヴァレオジャパン | Evaporator of vehicle air conditioner |
| CN106568239A (en) * | 2016-11-07 | 2017-04-19 | 上海加冷松芝汽车空调股份有限公司 | Cooling storage type evaporator |
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| JP3972501B2 (en) * | 1999-01-18 | 2007-09-05 | 株式会社デンソー | Heat exchange device for heat storage and air conditioner for vehicle |
| DE10156882A1 (en) * | 2001-01-05 | 2002-08-29 | Behr Gmbh & Co | Air conditioning system for motor vehicle with compressor arranged in refrigeration circuit and evaporator of air to be conditioned for the interior of the vehicle |
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