JP6722549B2 - Evaporator with cold storage function - Google Patents
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- JP6722549B2 JP6722549B2 JP2016167874A JP2016167874A JP6722549B2 JP 6722549 B2 JP6722549 B2 JP 6722549B2 JP 2016167874 A JP2016167874 A JP 2016167874A JP 2016167874 A JP2016167874 A JP 2016167874A JP 6722549 B2 JP6722549 B2 JP 6722549B2
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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
この発明は蓄冷機能付きエバポレータに関する。 The present invention relates to an evaporator with a cold storage function.
この明細書および特許請求の範囲において、図１〜図３に矢印Ｘで示す通風方向の下流側から見た上下、左右（図１の上下、左右）を上下、左右というものとする。 In this specification and claims, the up/down and left/right (up/down, left/right in FIG. 1) viewed from the downstream side in the ventilation direction shown by the arrow X in FIGS. 1 to 3 are referred to as up/down and left/right.
たとえば、環境保護や自動車の燃費向上などを目的として、信号待ちなどの停車時にエンジンを自動的に停止させる自動車が提案されている。 For example, a vehicle has been proposed in which the engine is automatically stopped when the vehicle is stopped, such as waiting for a signal, for the purpose of environmental protection and improvement of fuel efficiency of the vehicle.
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（冷熱を輸送する媒体）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 an ordinary car air conditioner, when the engine is stopped, the compressor driven by the engine is stopped, so that the refrigerant (medium for transporting cold heat) is not supplied to the evaporator, and the cooling capacity is sharply reduced. There is a problem.
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 a problem, a cool storage function is added to the evaporator, and when the engine stops and the compressor stops, the cold heat stored in the evaporator is released to cool the vehicle interior. Is being considered.
この種の蓄冷機能付きエバポレータとして、本出願人は、先に、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた複数の扁平状冷媒流通管、中空状の蓄冷材封入部が設けられるとともに蓄冷材封入部内に蓄冷材が封入された蓄冷材容器およびフィンを有する熱交換コア部を備えており、熱交換コア部において、通風方向に間隔をおいて配置された２つの冷媒流通管からなる管組が左右方向に間隔をおいて複数配置されることにより、左右方向に隣り合う冷媒流通管からなる管組どうしの間に間隙が形成され、蓄冷材容器が、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた扁平状であるとともに、前記全間隙のうちの一部でかつ複数の第１間隙に冷媒流通管に接するように配置され、フィンが、前記全間隙の残りの複数の第２間隙に冷媒流通管に接するように配置され、蓄冷材容器の蓄冷材封入部の下端縁が通風方向の全体に水平となっており、蓄冷材容器の蓄冷材封入部における熱交換コア部の通風方向の範囲内に位置する部分の左右両側壁外面に、上下方向に一定の流路長さを有するとともに上下両端が開口し、かつ凝縮水を上方から下方に流して下端開口から排水する複数の凝縮水排水溝が通風方向に間隔をおいて形成され、全凝縮水排水溝のうち少なくともいずれか１つの凝縮水排水溝の下端が、蓄冷材容器の蓄冷材封入部の下端縁に開口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 cool storage function of this kind, the present applicant has previously provided a plurality of flat refrigerant distribution pipes with the longitudinal direction oriented in the vertical direction and the width direction directed in the ventilation direction, and a hollow cool storage material enclosing portion. And a heat exchange core part having a cool storage material container and a fin in which the cool storage material is sealed in the cool storage material sealing part, and in the heat exchange core part, two refrigerant flow pipes arranged at intervals in the ventilation direction. By arranging a plurality of pipe sets consisting of the left-right direction at intervals, a gap is formed between the pipe sets consisting of the refrigerant flow pipes that are adjacent to each other in the left-right direction, and the regenerator material container moves in the longitudinal direction in the vertical direction. And a flat shape directed in the width direction toward the ventilation direction, and is arranged so as to be in contact with the refrigerant flow pipe in a part of the entire gap and a plurality of first gaps, and fins It is arranged so as to be in contact with the refrigerant flow pipe in the remaining plurality of second gaps, the lower end edge of the regenerator material enclosing portion of the regenerator material container is horizontal in the entire ventilation direction, and in the regenerator material enclosing portion of the regenerator material container. On the outer surface of both left and right side walls of the part located in the ventilation direction of the heat exchange core part, there is a certain flow path length in the vertical direction, both upper and lower ends are open, and the condensed water flows downward from above to the lower end. A plurality of condensed water drainage channels draining from the opening are formed at intervals in the ventilation direction, and the lower end of at least one condensed water drainage channel of all the condensed water drainage channels is the cold storage material sealing portion of the cold storage material container. An evaporator with a cold storage function having an opening at the lower edge has been proposed (see Patent Document 1).
特許文献１記載の蓄冷機能付きエバポレータによれば、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、蓄冷材容器における冷媒流通管に接している部分を介して蓄冷材容器の蓄冷材封入部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、蓄冷材に蓄えられた冷熱が、蓄冷材容器における冷媒流通管に接している部分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 cold storage function described in
また、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、当該凝縮水を排水する必要がある。特許文献１記載の蓄冷機能付きエバポレータによれば、蓄冷材容器の外表面に発生した凝縮水が凝縮水排水溝内に溜まるとともに凝縮水排水溝内を流下して蓄冷材封入部の下端縁に移行し、ここから下方に落下して排水されるようになっており、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。
Further, when the compressor operates, the condensed water generated on the outer surface of the regenerator material container may be frozen, so it is necessary to drain the condensed water. According to the evaporator with a cool storage function described in
しかしながら、発生した凝縮水の量によっては、凝縮水排水溝内を流下して蓄冷材封入部の水平な下端縁に移行した凝縮水が、表面張力と重力とのバランスによって当該下端縁に留まり、下方に落下しにくくなって凝縮水の排水をスムーズに行えない場合がある。 However, depending on the amount of condensed water generated, the condensed water that has flowed down in the condensed water drainage groove and moved to the horizontal lower end edge of the cold storage material enclosing portion remains at the lower end edge due to the balance between surface tension and gravity, Condensate may not be drained smoothly due to difficulty in falling downward.
この発明は、上記実情に鑑み、蓄冷材容器の外面に発生した凝縮水を一層スムーズに排水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。 In view of the above situation, the present invention is to provide an evaporator with a cold storage function that can more smoothly drain condensed water generated on the outer surface of the cool storage material container.
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。 The present invention has the following aspects in order to achieve the above object.
1)長手方向を上下方向に向けるとともに幅方向を通風方向に向けた複数の扁平状冷媒流通管、中空状の蓄冷材封入部が設けられるとともに前記蓄冷材封入部内に蓄冷材が封入された蓄冷材容器およびフィンを有する熱交換コア部を備えており、前記熱交換コア部において、前記冷媒流通管が左右方向に間隔をおいて複数配置されることにより、左右方向に隣り合う前記冷媒流通管どうしの間に間隙が形成され、前記蓄冷材容器が、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた扁平状であるとともに、前記間隙のすべてのうちの一部でかつ複数の第１間隙に前記冷媒流通管に接するように配置され、前記フィンが、前記間隙のすべてのうちの残りでかつ複数の第２間隙に前記冷媒流通管に接するように配置され、前記蓄冷材容器が、一定幅を有する周縁の帯状部どうしが互いに接合された２枚の金属製容器構成板からなり、前記２枚の容器構成板における互いに接合された前記帯状部を除いた部分が外方に膨出させられることにより前記蓄冷材封入部が設けられ、前記蓄冷材封入部の厚み方向の中間部に前記容器構成板の前記帯状部からなる接合部が位置しており、前記蓄冷材封入部が、前記接合部よりも左右両方向に張り出した下端縁を有し、前記蓄冷材容器の前記蓄冷材封入部における前記熱交換コア部の通風方向の範囲内に位置する部分の左右両側壁のうち少なくともいずれか一方の側壁外面に、上下方向に一定の流路長さを有するとともに上下両端が開口し、かつ凝縮水を上方から下方に流して下端開口から排水する複数の凝縮水排水溝が通風方向に間隔をおいて形成され、前記複数の凝縮水排水溝のうちの少なくともいずれか１つの凝縮水排水溝の下端が、前記蓄冷材容器の前記蓄冷材封入部の下端縁に開口している蓄冷機能付きエバポレータであって、
前記蓄冷材容器の前記蓄冷材封入部の前記下端縁に、風下側から風上側に向かって上方または下方に傾斜した傾斜部が少なくとも１つ設けられており、当該傾斜部に少なくともいずれか１つの前記凝縮水排水溝の下端が開口し、前記蓄冷材封入部の前記下端縁の前記傾斜部の下方に、前記両容器構成板の互いに接合された前記帯状部からなりかつ前記蓄冷材封入部の前記傾斜部と同方向に傾斜した傾斜接合部が設けられている蓄冷機能付きエバポレータ。
1) longitudinally in the vertical direction into a plurality of flat refrigerant tubes with its width direction in the ventilation direction with directing, cold accumulating material to the cold accumulating material sealed portion with a hollow-shaped cold accumulating material enclosing portion is provided is sealed cold storage comprises a heat exchange core having a timber vessel and the fins, in the heat exchange core section, by being more disposed the refrigerant flow tube at predetermined intervals in the left-right direction, the refrigerant tubes adjacent in the lateral direction What was the gap is formed between the cold storage container, together with a flat with its width direction in the ventilating direction with directing the longitudinal direction in the vertical direction, and a plurality of part of all of the gap It is arranged so as to be in contact with the refrigerant tubes in the first gap, wherein the fins, the are arranged in contact with the refrigerant tubes rest in and a plurality of second gap of all the gaps, the cold storage container Is composed of two metal container component plates in which peripheral strips having a constant width are joined to each other, and a portion of the two container component plates excluding the joined strip portions is outward. The regenerator material encapsulating portion is provided by being bulged, and the joint portion composed of the strip-shaped portion of the container component plate is located at an intermediate portion in the thickness direction of the regenerator material enclosing portion. but has a lower edge which projects to the left and right directions than the joint of the left and right side walls of the portion located within the ventilating direction of the heat exchange core portion of the cold accumulating material enclosing portion of the cold storage container On the outer surface of at least one of the side walls, a plurality of condensate drainage channels that have a constant flow path length in the vertical direction and open at both upper and lower ends and that allow condensed water to flow downward from above and drain from the bottom end opening are ventilated. are formed at intervals in the direction, at least the lower end of one of the condensed water drains out of the plurality of condensed water drainage grooves open to the lower edge of the cold accumulating material enclosing portion of the cold storage container An evaporator with a cold storage function,
The lower edge of the cold accumulating material enclosing portion of the cold storage container, inclined portion inclined upward or downward from the leeward side to the windward side is provided at least one, at least one of the said inclined portion wherein to lower end openings of the condensed water drain grooves, wherein below the inclined portion of the lower edge of the cold accumulating material enclosing portion, wherein both containers construction plates from the joined the strip portion becomes and the cold accumulating material enclosing portion to each other An evaporator with a cold storage function, which is provided with an inclined joint portion that is inclined in the same direction as the inclined portion .
2)前記蓄冷材容器の前記蓄冷材封入部の前記下端縁の全体に、風下側から風上側に向かって下方に傾斜した１つの傾斜部が設けられており、下端が前記蓄冷材容器の前記蓄冷材封入部の下端縁に設けられた前記傾斜部に開口している凝縮水排水溝の下部に、上方から下方に向かって風上側に傾斜した傾斜溝部が設けられている上記1)記載の蓄冷機能付きエバポレータ。 2) the whole of the lower edge of the cold accumulating material enclosing portion of the cold storage container, and one of the inclined portion inclined downwardly toward the windward side is provided from the leeward side, said lower end of said cold storage container the bottom of the condensed water drain groove is opened to the inclined portion provided in the lower edge of the cold accumulating material enclosing portion, the inclined groove which is inclined windward side from top to bottom is provided 1) according Evaporator with cold storage function.
3)前記蓄冷材容器の前記蓄冷材封入部の前記下端縁に、風下側から風上側に向かって下方に傾斜した第１傾斜部と、風下側から風上側に向かって上方に傾斜した第２傾斜部とが設けられており、下端が前記蓄冷材容器の前記蓄冷材封入部の前記下端縁に設けられた前記第１傾斜部に開口している凝縮水排水溝の下部に、上方から下方に向かって風上側に傾斜した傾斜溝部が設けられている上記1)記載の蓄冷機能付きエバポレータ。
The lower edge of the cold accumulating material encapsulation of 3) the cold storage container, the inclined a first inclined portion inclined downward from the downstream side toward the upstream side, upward from the leeward side to the
4)前記第１傾斜部が風上側に設けられるとともに、前記第２傾斜部が風下側に設けられ、前記第１傾斜部の風下側端部と前記第２傾斜部の風上側端部とが連なっている上記3)記載の蓄冷機能付きエバポレータ。 4) together with the first inclined portion is provided on the windward side, the second inclined portion is provided on the downstream side, and a first inclined portion of the downwind-side end portion and the second inclined portion of the windward side end portion Evaporator with a cold storage function described in 3) above.
5)前記第１傾斜部が風下側に設けられるとともに、前記第２傾斜部が風上側に設けられ、前記第１傾斜部の風上側端部と前記第２傾斜部の風下側端部とが連なっている上記3)記載の蓄冷機能付きエバポレータ。 5) together with the first inclined portion is provided on the leeward side, the second inclined portion is provided on the windward side, and the first inclined portion of the windward side end portion and the second inclined portion of the downwind-side ends The evaporator with a cool storage function described in 3) above that is connected in series.
6)前記熱交換コア部において、通風方向に間隔をおいて配置された２つの前記冷媒流通管からなる管組が左右方向に間隔をおいて複数配置されることにより、左右方向に隣り合う前記管組どうしの間に間隙が形成され、前記第１傾斜部と前記第２傾斜部との連接部が、通風方向に並んだ２つの前記冷媒流通管間に位置している上記4)または5)記載の蓄冷機能付きエバポレータ。 6) In the heat exchange core part, by tubing set of two of said refrigerant tubes that are spaced ventilating direction is more spaced in the lateral direction, adjacent in the lateral direction the is gap formed between the tube sets each other, the first is articulated portion of the inclined portion and the second inclined portion, the 4 located between two of said refrigerant tubes arranged in the ventilating direction) or 5 ) Evaporator with cool storage function described.
上記1)〜6)の蓄冷機能付きエバポレータによれば、蓄冷材容器の蓄冷材封入部の下端縁に、風下側から風上側に向かって上方または下方に傾斜した傾斜部が少なくとも１つ設けられており、当該傾斜部に少なくともいずれか１つの前記凝縮水排水溝の下端が開口し、蓄冷材封入部の下端縁の傾斜部の下方に、蓄冷材容器を形成する両容器構成板の互いに接合された帯状部からなりかつ蓄冷材封入部の傾斜部と同方向に傾斜した傾斜接合部が設けられているので、蓄冷材容器の外表面に発生し、かつ下端が蓄冷材容器の蓄冷材封入部の下端縁に設けられた傾斜部に開口している凝縮水排水溝内に入った凝縮水は、凝縮水排水溝内を流下して蓄冷材封入部の下端縁の傾斜部に移行し、さらに傾斜部に沿って傾斜部の傾斜下端部に向かって流れる。したがって、傾斜部の傾斜下端部に短時間で多くの凝縮水が集まり、凝縮水に作用する重力が短時間で表面張力よりも大きくなって、傾斜部の傾斜下端部から下方に落下する。その結果、蓄冷材容器の外面に発生した凝縮水を一層スムーズに排水することができる。特に、低風量時などの凝縮水発生量が少ない状態において、蓄冷材容器下部の排水性が向上する。 According to the evaporator with a cold storage function of the above 1) to 6) , at least one inclined portion that is inclined upward or downward from the leeward side to the upwind side is provided at the lower edge of the cool storage material enclosing portion of the cool storage material container. and which, with the lower end of at least one of the condensed water drain groove is opened to the inclined portion, the lower inclined portion of the lower edge of the cold accumulating material enclosure, together joining both containers construction plate forming the cold storage container Since a slanted joint that is made up of a strip-shaped portion and is inclined in the same direction as the slanted portion of the cold storage material enclosing portion is provided, it occurs on the outer surface of the cold storage material container and the lower end is filled with the cold storage material of the cold storage material container. Condensed water that has entered the condensed water drainage groove that is open to the sloped portion provided at the lower edge of the part, flows down in the condensed water drainage groove and moves to the sloped portion of the lower edge of the cold storage material enclosing portion, Further, it flows along the inclined portion toward the inclined lower end portion of the inclined portion. Therefore, a large amount of condensed water gathers at the lower end of the inclined portion in a short time, the gravity acting on the condensed water becomes larger than the surface tension in a short time, and falls downward from the lower end of the inclined portion of the inclined portion. As a result, the condensed water generated on the outer surface of the cool storage material container can be drained more smoothly. In particular, when the amount of condensed water generated is small, such as when the air volume is low, the drainage performance of the lower part of the regenerator material container is improved.
上記1)の蓄冷機能付きエバポレータによれば、蓄冷材封入部の下端縁の傾斜部に沿って流れる凝縮水の流れ方向と、傾斜接合部に沿って流れる凝縮水の流れ方向とが一致しているので、凝縮水の流れがスムーズになって排水性が向上する。According to the evaporator with a cold storage function of the above 1), the flow direction of the condensed water flowing along the inclined portion of the lower end edge of the cold storage material enclosing portion and the flow direction of the condensed water flowing along the inclined joint portion are the same. As a result, the flow of condensed water becomes smooth and drainage improves.
上記2)の蓄冷機能付きエバポレータによれば、傾斜部の傾斜方向と、下端が蓄冷材容器の蓄冷材封入部の下端縁に設けられた傾斜部に開口している凝縮水排水溝の傾斜溝部の傾斜方向とが一致しているので、当該凝縮水排水溝内を流下してきた凝縮水は、スムーズに傾斜部に移行し、傾斜部に沿って傾斜部の傾斜下端部に向かって流れる。 According to the evaporator with a cold storage function of the above 2), the slanted direction of the slanted portion and the slanted groove portion of the condensed water drainage groove whose lower end is opened to the slanted portion provided at the lower end edge of the cool storage material enclosing portion of the cold storage material container. Since the inclined direction of the condensate coincides with that of the condensate, the condensed water flowing down in the condensed water drainage groove smoothly moves to the inclined portion and flows along the inclined portion toward the inclined lower end portion of the inclined portion.
上記3)〜5)の蓄冷機能付きエバポレータによれば、第１傾斜部の傾斜方向と、下端が蓄冷材容器の蓄冷材封入部の下端縁に設けられた第１傾斜部に開口している凝縮水排水溝の傾斜溝部の傾斜方向とが一致しているので、当該凝縮水排水溝内を流下してきた凝縮水は、スムーズに傾斜部に移行し、傾斜部に沿って第１傾斜部の傾斜下端部に向かって流れる。 According to the evaporator with a cold storage function of the above 3) to 5), the tilt direction of the first slanted portion and the lower end are opened to the first slanted portion provided at the lower end edge of the cool storage material enclosing portion of the cool storage material container. Since the inclination direction of the inclined groove portion of the condensed water drainage groove is the same, the condensed water flowing down in the condensed water drainage groove smoothly moves to the inclined portion, and the condensed water of the first inclined portion moves along the inclined portion. It flows toward the lower end of the slope.
上記4)の蓄冷機能付きエバポレータにおいて、上記6)の構成を有する場合、次の効果を奏する。すなわち、通風方向に間隔をおいて配置された２つの冷媒流通管のうち風下側冷媒流通管は風下側下ヘッダ部に接続され、風上側冷媒流通管は風上側下ヘッダ部に接続されるが、通常、風下側下ヘッダ部の上面の風下側端部に風下側に向かって下方に傾斜した傾斜部が設けられ、風上側下ヘッダ部の上面の風上側端部に風上側に向かって下方に傾斜した傾斜部が設けられる。したがって、第１傾斜部の傾斜下端部から風上側下ヘッダ部上に落下した凝縮水は、風上側下ヘッダ部上面の傾斜部に沿って流下して下方に排水されるとともに、第２傾斜部の傾斜下端部から風下側下ヘッダ部上に落下した凝縮水は、風下側下ヘッダ部上面の傾斜部に沿って流下して下方に排水されることになり、排水性が向上する。 When the evaporator with a cold storage function of 4) above has the configuration of 6) above, the following effects are achieved. That is, of the two refrigerant distribution pipes arranged at intervals in the ventilation direction, the leeward refrigerant distribution pipe is connected to the leeward header part, and the leeward refrigerant distribution pipe is connected to the leeward header part. , Usually, an inclined part that is inclined downward toward the leeward side is provided at the leeward side end portion of the upper surface of the leeward side lower header portion, and downwardly toward the windward side at the windward side end portion of the upper surface of the leeward side downward header portion. Is provided with an inclined portion. Therefore, the condensed water that has dropped onto the windward lower header portion from the lower inclined portion of the first inclined portion flows down along the inclined portion of the upper surface of the windward lower header portion and is drained downward, and at the same time, the second inclined portion. Condensed water that has fallen from the sloping lower end portion onto the leeward side lower header portion flows down along the sloping portion of the leeward side lower header portion and is drained downward, which improves drainage performance.
上記5)の蓄冷機能付きエバポレータにおいて、上記6)の構成を有する場合、次の効果を奏する。すなわち、通風方向に間隔をおいて配置された２つの冷媒流通管のうち風下側冷媒流通管は風下側下ヘッダ部に接続され、風上側冷媒流通管は風上側下ヘッダ部に接続されるが、通常、両下ヘッダ部間には上方に開口した溝状の排水部が設けられる。したがって、第１傾斜部および第２傾斜部の傾斜下端部から下方に落下した凝縮水は排水部内に入り、排水部から下方に排水されることになり、排水性が向上する。 When the evaporator with a cold storage function of the above 5) has the structure of the above 6), the following effects are obtained. That is, of the two refrigerant distribution pipes arranged at intervals in the ventilation direction, the leeward refrigerant distribution pipe is connected to the leeward header part, and the leeward refrigerant distribution pipe is connected to the leeward header part. Usually, a groove-shaped drainage portion that opens upward is provided between both lower header portions. Therefore, the condensed water that has dropped downward from the inclined lower end portions of the first inclined portion and the second inclined portion enters the drainage portion and is drained downward from the drainage portion, which improves the drainability .
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.
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 alloy in addition to pure aluminum.
図１はこの発明による蓄冷機能付きエバポレータの全体構成を示し、図２〜図５はその要部の構成を示す。 FIG. 1 shows the entire structure of an evaporator with a cold storage function according to the present invention, and FIGS. 2 to 5 show the structure of the essential parts thereof.
図１において、蓄冷機能付きエバポレータ(1)は、長手方向を左右方向に向けるとともに幅方向を通風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上ヘッダタンク(2)およびアルミニウム製下ヘッダタンク(3)と、両ヘッダタンク(2)(3)間に設けられた熱交換コア部(4)とを備えている。 In FIG. 1, an evaporator (1) with a cool storage function is an upper header tank (2) made of aluminum, which is arranged with a longitudinal direction in the left-right direction and a width direction in the ventilation direction, and which are arranged at intervals in the vertical direction. An aluminum lower header tank (3) and a heat exchange core portion (4) provided between the header tanks (2) and (3) are provided.
上ヘッダタンク(2)は、風下側に位置する風下側上ヘッダ部(5)と、風上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。下ヘッダタンク(3)は、風下側に位置する風下側下ヘッダ部(9)と、風上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。風下側下ヘッダ部(9)の上面の風下側端部に風下側に向かって下方に傾斜した傾斜部(9a)が設けられ、風上側下ヘッダ部(11)の上面の風上側端部に風上側に向かって下方に傾斜した傾斜部(11a)が設けられている。また、下ヘッダタンク(3)の両下ヘッダ部(9)(11)間には上方に開口しかつ左右方向にのびる溝部(12)が設けられている(図２および図３参照)。図示は省略したが、下ヘッダタンク(3)における両下ヘッダ部(9)(11)間の溝部(12)の底壁となる部分には、左右方向に間隔をおいて複数の排水穴が形成されている。 The upstream header tank (2) is located on the leeward side, and the leeward header section (5) is located on the leeward side and is integrated with the leeward side header section (5). It has and. A refrigerant inlet (7) is provided at the left end of the leeward header section (5), and a refrigerant outlet (8) is provided at the left end of the leeward header section (6). The leeward header tank (3) is located on the leeward side, and the leeward header portion (9) is located on the leeward side and is integrated with the leeward header portion (9). It has and. A sloping part (9a) inclined downward toward the leeward side is provided at the leeward side end of the upper surface of the leeward side header section (9), and at the leeward side end of the upper surface of the leeward side header section (11). An inclined portion (11a) inclined downward toward the windward side is provided. Further, between the lower header portions (9) and (11) of the lower header tank (3), there is provided a groove portion (12) which opens upward and extends in the left-right direction (see FIGS. 2 and 3). Although illustration is omitted, in the lower header tank (3), a plurality of drain holes are arranged at intervals in the left-right direction in the portion which becomes the bottom wall of the groove (12) between the lower headers (9) and (11). Has been formed.
熱交換コア部(4)には、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた状態で通風方向に間隔をおいて配置された複数、ここでは２つのアルミニウム製扁平状冷媒流通管(13)からなる複数の管組(14)が左右方向に間隔をおいて配置されており、これにより通風方向に並んだ２つの冷媒流通管(13)よりなる管組(14)の隣り合うものどうしの間に間隙(15A)(15B)が形成されている。風下側に並んだ冷媒流通管(13)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、風上側に並んだ冷媒流通管(13)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, here two, aluminum flat refrigerant flows are arranged with the longitudinal direction facing up and down and the width direction facing the ventilation direction at intervals. A plurality of pipe sets (14) made up of pipes (13) are arranged at intervals in the left-right direction, so that a pipe set (14) made up of two refrigerant flow pipes (13) arranged in the ventilation direction is adjacent to the pipe set (14). Gap (15A) (15B) is formed between the mating parts. An upper end portion of the refrigerant flow pipes (13) arranged on the leeward side is connected to the leeward side upper header portion (5), and a lower end portion thereof is connected to the leeward side lower header portion (9). Further, the upper end of the refrigerant flow pipes (13) arranged on the windward side is connected to the windward upper header portion (6), and the lower end thereof is connected to the windward lower header portion (11).
熱交換コア部(4)における全間隙(15A)(15B)のうち一部でかつ複数の第１間隙(15A)に、蓄冷材が封入されたアルミニウム製蓄冷材容器(16)が、各管組(14)を構成する２つの冷媒流通管(13)に跨るように配置されて両冷媒流通管(13)にろう材により接合されている。以下、ろう材による接合をろう付というものとする。熱交換コア部(4)における全間隙(15A)(15B)のうち残りの複数の第２間隙(15B)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、かつ通風方向にのびる波頂部、通風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(17)が、各管組(14)を構成する２つの冷媒流通管(13)に跨るように配置されて両冷媒流通管(13)にろう付されている。左右方向に隣り合う２つの第１間隙(15A)どうしの間には複数、ここでは２つの第２間隙(15B)が存在している。左右方向に隣り合う２つの第１間隙(15A)どうしの間の第２間隙(15B)の数は３以上でもよく、その上限は７であることが好ましい。また、左右両端の管組(14)の外側にも、アウターフィン(17)が、管組(14)を構成する２つの冷媒流通管(13)に跨るように配置されて両冷媒流通管(13)にろう付され、さらに左右両端のアウターフィン(17)の外側にアルミニウム製サイドプレート(18)が配置されてアウターフィン(17)にろう付されている。 An aluminum cold storage material container (16) in which a cold storage material is enclosed in a plurality of first gaps (15A), which are a part of the total gaps (15A) and (15B) in the heat exchange core part (4), is provided in each tube. It is arranged so as to straddle the two refrigerant flow pipes (13) constituting the group (14) and is joined to both the refrigerant flow pipes (13) by a brazing material. Hereinafter, joining with a brazing material is referred to as brazing. A wave crest that is made of an aluminum brazing sheet having a brazing filler metal layer on both sides in the remaining plural second gaps (15B) among all the gaps (15A) and (15B) in the heat exchange core part (4), and extends in the ventilation direction. , A corrugated outer fin (17) consisting of a wave bottom extending in the ventilation direction and a connecting portion connecting the wave top and the wave bottom to two refrigerant distribution pipes (13) constituting each pipe set (14). They are arranged so as to straddle and are brazed to both refrigerant flow pipes (13). There are a plurality of, here, two second gaps (15B) between the two first gaps (15A) adjacent to each other in the left-right direction. The number of the second gaps (15B) between the two first gaps (15A) adjacent to each other in the left-right direction may be 3 or more, and the upper limit thereof is preferably 7. Further, outer fins (17) are arranged outside the pipe groups (14) at both the left and right ends so as to straddle the two refrigerant flow pipes (13) constituting the pipe set (14). It is brazed to the outer fins (17), and aluminum side plates (18) are arranged outside the outer fins (17) at the left and right ends and are brazed to the outer fins (17).
アウターフィン(17)の風上側端部は風上側冷媒流通管(13)の風上側端部と通風方向の同一位置にあり、アウターフィン(17)の風下側端部は風下側冷媒流通管(13)の風下側端部に対して若干、たとえば１ｍｍ程度風下側に突出した位置にある(図４参照)。アウターフィン(17)の通風方向の幅を、熱交換コア部(4)の通風方向の全幅というものとする。 The windward side end of the outer fin (17) is located at the same position as the windward side end of the windward side refrigerant flow pipe (13) in the ventilation direction, and the leeward side end of the outer fin (17) is at the leeward side refrigerant flow pipe ( It is located at a position slightly protruding from the leeward side end of 13), for example, about 1 mm to the leeward side (see FIG. 4). The width of the outer fins (17) in the ventilation direction is referred to as the total width of the heat exchange core portion (4) in the ventilation direction.
この実施形態のエバポレータ(1)の場合、冷媒は、冷媒入口(7)を通ってエバポレータ(1)の風下側上ヘッダ部(5)内に入り、全冷媒流通管(13)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 enters the leeward side upper header section (5) of the evaporator (1) through the refrigerant inlet (7) and winds through the entire refrigerant flow pipe (13). It flows out from the refrigerant outlet (8) of the upper upper header section (6).
図２〜図５に示すように、蓄冷材容器(16)は、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた略縦長方形の扁平中空状であり、熱交換コア部(4)の通風方向の全幅の範囲内に位置し、かつ各管組(14)の２つの冷媒流通管(13)にろう付された容器本体部(19)と、容器本体部(19)の風下側縁部の一部分、ここでは上部のみに連なるとともにアウターフィン(17)の風下側端部よりも風下側に張り出すように設けられた外方張り出し部(21)とよりなる。外方張り出し部(21)は蓄冷材容器(16)の上端から若干下がった部分から一定の長さにわたって設けられている。 As shown in FIGS. 2 to 5, the regenerator material container (16) has a flat hollow shape of a substantially vertical rectangle whose longitudinal direction is oriented in the vertical direction and whose width direction is directed in the ventilation direction. ) Located within the entire width in the ventilation direction and brazed to the two refrigerant flow pipes (13) of each pipe assembly (14) and the leeward side of the container body (19). A part of the side edge portion, which is connected only to the upper portion in this case, is composed of an outer protruding portion (21) provided so as to project to the leeward side of the leeward side end of the outer fin (17). The outward projecting portion (21) is provided over a certain length from a portion slightly lower than the upper end of the cool storage material container (16).
蓄冷材容器(16)は、両面にろう材層を有するアルミニウムブレージングシートにプレス加工が施されることにより形成され、かつ一定幅を有する周縁の帯状部(22a)(23a)どうしが互いにろう付された２枚の略縦長方形状のアルミニウム製容器構成板(22)(23)よりなる。以下、両容器構成板(22)(23)の帯状部(22a)(23a)どうしの互いにろう付されたろう付部(接合部)を(25)で示す。蓄冷材容器(16)には、両容器構成板(22)(23)の帯状部(22a)(23a)を除いた部分を外方に膨出させることによって、中空状の蓄冷材封入部(24)が、容器本体部(19)から外方張り出し部(21)にかけて形成され、蓄冷材封入部(24)内に蓄冷材(図示略)が入れられている。蓄冷材封入部(24)は、蓄冷材容器(16)における容器本体部(19)のみが設けられている部分(図２の鎖線Ｙよりも下方の部分)に存在する第１封入部(24a)と、第１封入部(24a)の上方に連なり、かつ蓄冷材容器(16)における容器本体部(19)および外方張り出し部(21)が設けられている部分(図２の鎖線Ｙよりも上方の部分)において容器本体部(19)および外方張り出し部(21)に跨って存在する第２封入部(24b)とを有する。蓄冷材封入部(24)の第１封入部(24a)および第２封入部(24b)における容器本体部(19)に存在する部分の左右方向の厚みは、等しくなっている。蓄冷材容器(16)の蓄冷材封入部(24)は、両容器構成板(22)(23)の帯状部(22a)(23a)どうしのろう付部(25)よりも左右両方向に張り出した風上側縁(26)、風下側縁(27)、上端縁(28)および下端縁(29)を有しており、ろう付部(25)は、蓄冷材封入部(24)の厚み方向の中間部に位置している。 The cold storage material container (16) is formed by press working an aluminum brazing sheet having a brazing material layer on both sides, and the peripheral strips (22a) (23a) having a constant width are brazed to each other. It is composed of two substantially vertical rectangular aluminum container component plates (22) and (23). Hereinafter, a brazing part (joint part) brazed between the band-shaped parts (22a) and (23a) of both container component plates (22) and (23) is indicated by (25). In the cool storage material container (16), the hollow cool storage material enclosing part ((a) is formed by bulging the parts of both container component plates (22) and (23) excluding the strip-shaped parts (22a) and (23a) outward. 24) is formed from the container main body portion (19) to the outward projecting portion (21), and a cool storage material (not shown) is put in the cool storage material enclosing portion (24). The regenerator material enclosing portion (24) is the first enclosing portion (24a) existing in the portion of the regenerator material container (16) where only the container body portion (19) is provided (the portion below the chain line Y in FIG. 2). ), and a portion of the cool storage material container (16) that is connected to the upper part of the first enclosure part (24a) and is provided with the container body part (19) and the outward projecting part (21) (from the chain line Y in FIG. 2). Also has a second enclosure part (24b) existing over the container body part (19) and the outward projecting part (21) in the upper part). The thicknesses of the first enclosure portion (24a) and the second enclosure portion (24b) of the cold storage material enclosure portion (24) existing in the container body portion (19) in the left-right direction are equal. The regenerator material enclosing portion (24) of the regenerator material container (16) is projected in both left and right directions from the brazing portion (25) between the strip-shaped portions (22a) and (23a) of the two container component plates (22) and (23). It has a windward side edge (26), a leeward side edge (27), an upper end edge (28) and a lower end edge (29), and the brazing part (25) is in the thickness direction of the cold storage material enclosing part (24). It is located in the middle part.
蓄冷材容器(16)の蓄冷材封入部(24)の風上側縁(26)は第１封入部(24a)から第２封入部(24b)にかけて全体に垂直状であり、風下側縁(27)における第１封入部(24a)に存在する第１部分(27a)および第２封入部(24b)に存在する第２部分(27b)はそれぞれ垂直状であり、上端縁(28)は水平状である。蓄冷材容器(16)の蓄冷材封入部(24)の下端縁(29)の全体に、風下側から風上側に向かって下方に傾斜した１つの傾斜部(31)が設けられている。両容器構成板(22)(23)の帯状部(22a)(23a)どうしのろう付部(25)における蓄冷材封入部(16)の下端縁(29)の傾斜部(31)の下方に位置する部分には、蓄冷材封入部(16)の下端縁の傾斜部(31)と同方向、すなわち全体が風下側から風上側に向かって下方に傾斜した１つの傾斜ろう付部(25a)(傾斜接合部)が設けられている。 The windward side edge (26) of the cold storage material enclosing portion (24) of the regenerator material container (16) is entirely vertical from the first enclosing portion (24a) to the second enclosing portion (24b), and the leeward side edge (27 ), the first portion (27a) present in the first enclosing portion (24a) and the second portion (27b) present in the second enclosing portion (24b) are each vertical and the upper edge (28) is horizontal. Is. The entire lower end edge (29) of the cold storage material enclosing portion (24) of the cold storage material container (16) is provided with one inclined portion (31) inclined downward from the leeward side toward the upwind side. Below the inclined part (31) of the lower edge (29) of the cold storage material enclosing part (16) in the brazing part (25) between the strip-shaped parts (22a) (23a) of both container component plates (22) (23) In the position where it is located, one inclined brazing part (25a) is inclined in the same direction as the inclined part (31) of the lower edge of the regenerator material enclosing part (16), that is, the whole is inclined downward from the leeward side toward the upwind side. (Inclined joint) is provided.
蓄冷材容器(16)の蓄冷材封入部(24)の容器本体部(19)に存在する部分の左右両側壁(32)外面に、それぞれ上下方向に一定の流路長さを有するとともに上下両端が開口し、かつ凝縮水を上方から下方に流して下端開口から排水する複数の凝縮水排水溝(33)(34)(35)が通風方向に間隔をおいて形成されている。各凝縮水排水溝(33)(34)(35)は、蓄冷材容器(16)の蓄冷材封入部(24)の左右両側壁(32)における容器本体部(19)に存在する部分に設けられて外方に膨出した２つの排水溝用凸部(36)の間に形成されており、１つの凝縮水排水溝(33)(34)(35)を形成する２つの排水溝用凸部(36)の長さは、蓄冷材容器(16)の容器本体部(19)の通風方向の幅よりも長くなっている。各蓄冷材容器(16)の左右両側壁(32)のすべての排水溝用凸部(36)の膨出高さは等しくなっているとともに、後述する膨張部用凸部(38)の膨出高さ以下となっており、すべての排水溝用凸部(36)の膨出端は同一垂直面上に位置している。また、排水溝用凸部(36)の膨出端の少なくとも一部が、第１間隙(15A)を形成する左右両側の管組(14)を構成する２つの冷媒流通管(13)にろう付されている。隣り合う２つの凝縮水排水溝(33)(34)(35)は、両凝縮水排水溝(33)(34)(35)間に位置する排水溝用凸部(36)を共有している。左側壁(32)の凝縮水排水溝(33)(34)(35)および排水溝用凸部(36)と、右側壁(32)の凝縮水排水溝(33)(34)(35)および排水溝用凸部(36)とは、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。なお、凝縮水排水溝(33)(34)(35)内を微量の空気も流れる。 On the outer surface of both left and right side walls (32) of the portion of the container body portion (19) of the cool storage material enclosing portion (24) of the cool storage material container (16), each has a constant flow path length in the vertical direction and both upper and lower ends. A plurality of condensate drainage channels (33), (34), and (35) that are open and that allow the condensed water to flow downward from above and drain from the lower end opening are formed at intervals in the ventilation direction. Condensed water drainage grooves (33), (34), (35) are provided in the container body part (19) on both left and right side walls (32) of the cool storage material enclosing part (24) of the cool storage material container (16). Two drain groove projections that are formed between the two drain groove projections (36) that are bulged outward and form one condensed water drain groove (33) (34) (35). The length of the portion (36) is longer than the width of the container body (19) of the cool storage material container (16) in the ventilation direction. All the drainage groove projections (36) on the left and right side walls (32) of each cold storage material container (16) have the same bulging height, and the expansion section projections (38) described later swell. The height is less than or equal to the height, and the bulging ends of all the drainage groove convex portions (36) are located on the same vertical plane. Further, at least a part of the bulging end of the drainage groove convex portion (36) serves as the two refrigerant distribution pipes (13) constituting the left and right pipe sets (14) forming the first gap (15A). It is attached. Two adjacent condensate drainage channels (33)(34)(35) share the drainage channel protrusion (36) located between the two condensed water drainage channels (33)(34)(35). .. Condensate drains (33) (34) (35) and drain projections (36) on the left side wall (32) and condensed water drains (33) (34) (35) and right side wall (32) The drain groove convex portion (36) is provided in the same horizontal plane so as not to overlap with the drain groove convex portion (36) in the ventilation direction. A small amount of air also flows through the condensed water drain grooves (33) (34) (35).
全凝縮水排水溝(33)(34)(35)中には、上端が上方に向かって開口するともに下端が蓄冷材容器(16)の通風方向の風上側および風下側のうちのいずれか一方の第１側、ここでは風上側に向かって開口した第１凝縮水排水溝(33)と、上端が蓄冷材容器(16)の通風方向の風上側および風下側のうちのいずれか他方の第２側、ここでは風下側に向かって開口するとともに下端が蓄冷材容器(16)の風上側に向かって開口した第２凝縮水排水溝(34)と、上端が蓄冷材容器(16)の風下側に向かって開口するとともに下端が下方に向かって開口した第３凝縮水排水溝(35)とがある。第１および第２凝縮水排水溝(33)(34)の下端は蓄冷材封入部(24)の風上側縁(26)に開口し、第３凝縮水排水溝(35)の下端は、蓄冷材封入部(24)の下端縁(29)の傾斜部(31)に開口している。また、第１封入部(24a)に設けられている第２凝縮水排水溝(34)の上端および第３凝縮水排水溝(35)の上端は、蓄冷材封入部(24)の風下側縁(27)の第１部分(27a)に開口している。 In the total condensed water drainage channels (33), (34), (35), the upper end opens upward and the lower end is either the upwind side or the downwind side of the regenerator material container (16) in the ventilation direction. The first condensed water drainage groove (33) that is open toward the windward side here, and the upper end of the other side of either the windward side or the leeward side of the cool storage material container (16) in the ventilation direction. 2nd side, here the 2nd condensed water drainage groove (34) which opens toward the leeward side, and the lower end opens toward the leeward side of the regenerator material container (16), and the upper end leeward of the regenerator material container (16). There is a third condensate drainage groove (35) which is open toward the side and whose lower end is open downward. The lower ends of the first and second condensed water drainage channels (33) and (34) are open to the windward edge (26) of the cool storage material enclosing portion (24), and the lower ends of the third condensed water drainage channel (35) are cold storage. The material enclosing portion (24) has an opening in the inclined portion (31) of the lower end edge (29). Further, the upper ends of the second condensed water drainage groove (34) and the third condensed water drainage groove (35) provided in the first enclosing portion (24a) are the leeward side edge of the regenerator material enclosing portion (24). It is open to the first portion (27a) of (27).
第１凝縮水排水溝(33)の少なくとも下部に、下方に向かって風上側に傾斜した傾斜溝部(33a)が設けられている。第２凝縮水排水溝(34)の少なくとも下部に、下方に向かって風上側に傾斜した傾斜溝部(34a)が設けられている。第３凝縮水排水溝(35)の下部に、上方から下方に向かって風上側に傾斜した傾斜溝部(35a)が設けられている。傾斜溝部(35a)の鉛直線に対する傾斜方向は、蓄冷材容器(16)における蓄冷材封入部(24)の下端縁(29)に設けられた傾斜部(31)の鉛直線に対する傾斜方向と同じである。 At least a lower portion of the first condensed water drainage groove (33) is provided with an inclined groove portion (33a) inclined downward to the windward side. At least a lower portion of the second condensed water drainage groove (34) is provided with an inclined groove portion (34a) inclined downward to the windward side. An inclined groove portion (35a) is provided below the third condensed water drainage groove (35) and is inclined toward the windward side from above to below. The inclination direction of the inclined groove portion (35a) with respect to the vertical line is the same as the inclination direction of the inclination portion (31) provided on the lower end edge (29) of the cold storage material enclosing portion (24) in the cold storage material container (16) with respect to the vertical line. Is.
蓄冷材容器(16)の容器本体部(19)内には、オフセット状のアルミニウム製インナーフィン(37)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(37)は、上下方向にのびる波頂部、上下方向にのびる波底部、および波頂部と波底部とを連結する連結部からなる波状帯板が、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つの波状帯板の波頂部どうしおよび波底部どうしが通風方向に位置ずれしているものである。 In the container body (19) of the cool storage material container (16), offset aluminum inner fins (37) are arranged over almost the entire vertical direction. The inner fin (37) has a plurality of wavy strips, which are vertically arranged, a wave bottom extending in the vertical direction, and a connecting portion connecting the wave top and the wave bottom. Are formed by being connected to each other, and the wave crests and the wave bottoms of two vertically adjacent wavy strips are displaced in the ventilation direction.
蓄冷材容器(16)の外方張り出し部(21)は、容器本体部(19)の風下側縁(27)の第２部分(27b)の上端よりも若干下方の部分から一定の長さにわたって設けられており、外方張り出し部(21)の上下方向の長さは容器本体部(19)の上下方向の長さよりも短くなっている。外方張り出し部(21)の上下方向の長さは、蓄冷材容器(16)の上下方向の長さの３０％以下であることが好ましい。蓄冷材容器(16)の蓄冷材封入部(24)の左右両側壁(32)における外方張り出し部(21)に存在する部分に、左右両方向に膨らみ、かつ左右方向の寸法が蓄冷材封入部(24)の左右方向の寸法以上となっている膨張部(21a)が設けられており、膨張部(21a)がアウターフィン(17)の通風方向下流側端部よりも通風方向外側（通風方向下流側）に位置している。膨張部(21a)は、蓄冷材封入部(24)の左右両側壁(32)に設けられて外方に膨出した膨張部用凸部(38)からなる。 The outward projecting portion (21) of the cold storage material container (16) extends over a certain length from a portion slightly below the upper end of the second portion (27b) of the leeward side edge (27) of the container body (19). The outer projection (21) has a vertical length shorter than the vertical length of the container body (19). The vertical length of the outward projecting portion (21) is preferably 30% or less of the vertical length of the cool storage material container (16). The cold storage material enclosing portion (24) of the cold storage material container (16) swells in both left and right directions in the outer projections (21) of the left and right side walls (32) of the cold storage material encapsulating portion. There is an expansion part (21a) that is larger than the size in the left-right direction of (24), and the expansion part (21a) is located outside the ventilation direction downstream end (outflow direction) of the outer fin (17). It is located on the downstream side). The expansion part (21a) is composed of an expansion part convex part (38) provided on both left and right side walls (32) of the cold storage material enclosing part (24) and expanded outward.
蓄冷材容器(16)の外方張り出し部(21)の上端部には蓄冷材注入部材(39)が固定されており、蓄冷材は、蓄冷材注入部材(39)を通して蓄冷材封入部(24)内に注入され、蓄冷材注入部材(39)は、蓄熱材封入部(24)内への蓄冷材の注入後に封止されている。 A regenerator material injection member (39) is fixed to the upper end of the outward projecting portion (21) of the regenerator material container (16). ), the regenerator material injection member (39) is sealed after the regenerator material is injected into the heat storage material enclosing portion (24).
上述した蓄冷機能付きエバポレータ(1)は、車両のエンジンを駆動源とする圧縮機、圧縮機から吐出された冷媒を冷却するコンデンサ（冷媒冷却器）、コンデンサを通過した冷媒を減圧する膨張弁（減圧器）とともに冷凍サイクルを構成し、カーエアコンとして、停車時に圧縮機の駆動源であるエンジンを一時的に停止させる車両、たとえば自動車に搭載される。圧縮機が作動している場合には、圧縮機で圧縮されてコンデンサおよび膨張弁を通過した低圧の気液混相の２相冷媒が、冷媒入口(7)を通って蓄冷機能付きエバポレータ(1)の風下側上ヘッダ部(5)内に入り、全冷媒流通管(13)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(13)内を流れる間に第２間隙(15B)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 (1) with a cool storage function 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 decompresses the refrigerant that has passed through the condenser ( A refrigeration cycle is configured together with a pressure reducer, and is installed as a car air conditioner in a vehicle, such as an automobile, in which the engine that is the drive source of the compressor is temporarily stopped when the vehicle is stopped. When the compressor is operating, the low-pressure gas-liquid mixed two-phase refrigerant that has been compressed by the compressor and passed through the condenser and the expansion valve passes through the refrigerant inlet (7) and the evaporator with a cold storage function (1). Enters into the leeward side upper header portion (5) and flows out from the refrigerant outlet (8) of the leeward side upper header portion (6) through all the refrigerant circulation pipes (13). Then, while the refrigerant flows in the refrigerant flow pipe (13), it exchanges heat with the air passing through the second gap (15B), and the refrigerant flows out in a gas phase.
圧縮機の作動時には、冷媒流通管(13)内を流れる冷媒の有する冷熱が、蓄冷材容器(16)の蓄冷材封入部(24)の左右両側壁(32)における容器本体部(19)に存在する部分に設けられた排水溝用凸部(36)の膨出頂壁を経て直接蓄冷材容器(16)内の蓄冷材に伝わるとともに、排水溝用凸部(36)の膨出頂壁から左右両側壁(32)における冷媒流通管(13)にろう付されていない部分およびインナーフィン(37)を経て蓄冷材容器(16)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 operation of the compressor, the cold heat of the refrigerant flowing through the refrigerant flow pipe (13) is stored in the container body (19) on the left and right side walls (32) of the cold storage material enclosure (24) of the cold storage material container (16). It is directly transmitted to the cold storage material in the cool storage material container (16) through the bulging top wall of the drainage groove convex portion (36) provided in the existing portion, and also the bulging top wall of the drainage groove convex portion (36). From the left and right side walls (32) to the entire cold storage material in the cold storage material container (16) through the part not brazed to the refrigerant flow pipe (13) and the inner fins (37), and cold heat is stored in the cold storage material. To be
また、圧縮機の作動時には、蓄冷材容器(16)表面に凝縮水が発生し、当該凝縮水は第１〜第３凝縮水排水溝(33)(34)(35)内に入り、表面張力により第１〜第３凝縮水排水溝(33)(34)(35)の両側の排水溝用凸部(36)に沿うようにして第１〜第３凝縮水排水溝(33)(34)(35)内に溜まる。溜まった凝縮水が多くなると、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って、第１〜第３凝縮水排水溝(33)(34)(35)内を流下する。第１および第２凝縮水排水溝(33)(34)内を流下した凝縮水は蓄冷材封入部(24)の風上側縁(26)に移行し、垂直状の風上側縁(26)に沿って下方に流れ、下ヘッダタンク(3)の風上側下ヘッダ部(11)上に落下し、傾斜部(11a)に沿って流下して下ヘッダタンク(3)の下方に排水される。第３凝縮水排水溝(35)内を流下した凝縮水は蓄冷材封入部(24)の下端縁(29)の傾斜部(31)に移行し、さらに傾斜部(31)に沿ってその風上側端部（傾斜下端部）に向かって流れる。ここで、傾斜部(31)の傾斜方向と、第３凝縮水排水溝(35)の傾斜溝部(35a)の傾斜方向とが一致しているので、第３凝縮水排水溝(35)内を流下してきた凝縮水は、スムーズに下端縁(29)の傾斜部(31)に移行し、傾斜部(31)に沿ってその傾斜下端部に向かって流れる。したがって、傾斜部(31)の傾斜下端部に短時間で多くの凝縮水が集まり、凝縮水に作用する重力が短時間で表面張力よりも大きくなって、傾斜部(31)の傾斜下端部から下ヘッダタンク(3)の風上側下ヘッダ部(11)上に落下し、傾斜部(11a)に沿って流下して下ヘッダタンク(3)の下方に排水される。 Further, when the compressor operates, condensed water is generated on the surface of the cold storage material container (16), and the condensed water enters the first to third condensed water drainage grooves (33), (34) and (35), and the surface tension is reduced. The first to third condensed water drainage grooves (33) (34) (35) are arranged along the drainage groove projections (36) on both sides of the first to third condensed water drainage grooves (33) (34) (35). It collects in (35). 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 through the first to third condensed water drain grooves (33), (34) and (35). The condensed water that has flowed down in the first and second condensed water drainage grooves (33) (34) moves to the windward edge (26) of the regenerator material enclosing portion (24) and becomes a vertical windward edge (26). It flows downwards, falls on the windward lower header section (11) of the lower header tank (3), flows down along the inclined section (11a), and is discharged below the lower header tank (3). The condensed water flowing down in the third condensed water drainage groove (35) moves to the sloped part (31) of the lower end edge (29) of the cold storage material enclosing part (24), and the wind along the sloped part (31). Flows toward the upper end (sloping lower end). Here, since the inclination direction of the inclined portion (31) and the inclination direction of the inclined groove portion (35a) of the third condensed water drainage groove (35) are the same, the inside of the third condensed water drainage groove (35) is The condensed water that has flowed down smoothly moves to the inclined portion (31) of the lower end edge (29) and flows toward the inclined lower end portion along the inclined portion (31). Therefore, a large amount of condensed water gathers in the inclined lower end of the inclined portion (31) in a short time, the gravity acting on the condensed water becomes larger than the surface tension in a short time, and from the inclined lower end of the inclined portion (31). It falls on the windward lower header section (11) of the lower header tank (3), flows down along the inclined section (11a), and is discharged below the lower header tank (3).
圧縮機の停止時には、蓄冷材容器(16)内の蓄冷材に蓄えられた冷熱が、蓄冷材容器(16)の蓄冷材封入部(24)の左右両側壁(32)における容器本体部(19)に存在する部分に設けられた排水溝用凸部(36)の膨出頂壁を経て直接冷媒流通管(13)に伝わるとともに、インナーフィン(37)から左右両側壁(32)における冷媒流通管(13)にろう付されていない部分および排水溝用凸部(36)の膨出頂壁を経て冷媒流通管(13)に伝わり、さらに冷媒流通管(13)を通過して当該冷媒流通管(13)における蓄冷材容器(16)とは反対側にろう付されているアウターフィン(17)に伝わる。アウターフィン(17)に伝わった冷熱は、蓄冷材容器(16)が配置されている第１間隙(15A)の両隣の第２間隙(15B)を通過する空気に伝えられる。アウターフィン(17)に伝わった冷熱は、蓄冷材容器(16)が配置されている第１間隙(15A)の両隣の第２間隙(15B)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 stored in the regenerator material in the regenerator material container (16) is stored in the regenerator material container (16) inside the regenerator material enclosure (24) on both left and right side walls (32) of the container body (19). ) Is transmitted to the refrigerant flow pipe (13) directly through the bulging top wall of the drainage groove convex portion (36) provided in the portion existing in (), and the refrigerant flow in the left and right side walls (32) from the inner fin (37). It is transmitted to the refrigerant flow pipe (13) through the part not brazed to the pipe (13) and the bulging top wall of the drainage groove convex portion (36), and further passes through the refrigerant flow pipe (13) to flow the refrigerant. It is transmitted to the outer fin (17) brazed on the side of the pipe (13) opposite to the cool storage material container (16). The cold heat transferred to the outer fins (17) is transferred to the air passing through the second gaps (15B) on both sides of the first gap (15A) in which the cold storage material container (16) is arranged. The cold heat transferred to the outer fins (17) is transferred to the air passing through the second gaps (15B) on both sides of the first gap (15A) in which the cold storage material container (16) is arranged. Therefore, even if the temperature of the wind that has passed through the evaporator (1) rises, the wind is cooled, so that a rapid decrease in the cooling capacity is prevented.
上述した実施形態においては、蓄冷材容器(16)の蓄冷材封入部(24)の容器本体部(19)に存在する部分の左右両側壁(32)外面に、凝縮水排水溝(33)(34)(35)および排水溝用凸部(36)が設けられているが、これに限定されるものではなく、いずれか一方の側壁に凝縮水排水溝(33)(34)(35)および排水溝用凸部(36)が設けられていてもよい。 In the embodiment described above, the left and right side walls (32) of the portion existing in the container body portion (19) of the cold storage material enclosing portion (24) of the cold storage material container (16), the condensed water drain groove (33) ( 34) (35) and the drain projection (36) are provided, but the invention is not limited to this, and the condensed water drain grooves (33) (34) (35) and The drainage groove convex portion (36) may be provided.
図６および図７は図１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第１の変形例を示す。 6 and 7 show a first modified example of the cool storage material container used in the evaporator with a cool storage function of FIG. 1.
図６および図７に示す蓄冷材容器(50)の場合、蓄冷材封入部(24)の下端縁(29)に、風下側から風上側に向かって下方に傾斜した第１傾斜部(51)と、風下側から風上側に向かって上方に傾斜した第２傾斜部(52)とが設けられている。第１傾斜部(51)は蓄冷材封入部(24)の下端縁(29)の風上側半部に設けられ、第２傾斜部(52)は蓄冷材封入部(24)の下端縁(29)の風下側半部に設けられ、第１傾斜部(51)の風下側端部と第２傾斜部(52)の風上側端部とが連なっている。ここで、第１傾斜部(51)と第２傾斜部(52)の長さおよび水平線に対する傾斜角度はそれぞれ等しくなっている。 In the case of the cold storage material container (50) shown in FIG. 6 and FIG. 7, at the lower edge (29) of the cold storage material enclosing portion (24), the first inclined portion (51) inclined downward from the leeward side toward the upwind side. And a second inclined portion (52) inclined upward from the leeward side toward the leeward side. The first sloped portion (51) is provided on the windward half of the lower end edge (29) of the cold storage material enclosing portion (24), and the second sloped portion (52) is located at the lower end edge (29) of the cold storage material enclosing portion (24). ), the leeward side end of the first inclined portion (51) and the leeward side end of the second inclined portion (52) are connected. Here, the lengths of the first inclined portion (51) and the second inclined portion (52) and the inclination angles with respect to the horizontal line are equal to each other.
両容器構成板(22)(23)の帯状部(22a)(23a)どうしのろう付部(25)における蓄冷材封入部(16)の下端縁(29)の第１傾斜部(51)および第２傾斜部(52)の下方に位置する部分には、蓄冷材封入部(16)の下端縁(29)の第１傾斜部(51)および第２傾斜部(52)と同方向に傾斜した２つの傾斜ろう付部(25b)(25c)が設けられている。すなわち、蓄冷材封入部(24)の下端縁(29)の第１傾斜部(51)の下方には風下側から風上側に向かって下方に傾斜した第１傾斜ろう付部(25b)が設けられ、同じく第２傾斜部(52)の下方には風下側から風上側に向かって上方に傾斜した第２傾斜ろう付部(25c)が設けられている。 The first inclined portion (51) of the lower end edge (29) of the cold storage material enclosing portion (16) in the brazing portion (25) between the band-shaped portions (22a) (23a) of both container component plates (22) (23) and The portion located below the second inclined portion (52) is inclined in the same direction as the first inclined portion (51) and the second inclined portion (52) of the lower end edge (29) of the regenerator material enclosing portion (16). The two inclined brazing parts (25b) and (25c) are provided. That is, a first inclined brazing portion (25b) inclined downward from the leeward side toward the windward side is provided below the first inclined portion (51) of the lower end edge (29) of the cool storage material enclosing portion (24). Similarly, below the second inclined portion (52), there is provided a second inclined brazing portion (25c) that inclines upward from the leeward side toward the windward side.
一部の第３凝縮水排水溝(35)の傾斜溝部(35a)の下端が蓄冷材封入部(24)の下端縁(29)の第１傾斜部(51)に開口し、残りの第３凝縮水排水溝(35)の傾斜溝部(35a)の下端が蓄冷材封入部(24)の下端縁(29)の第２傾斜部(52)に開口している。 The lower end of the inclined groove portion (35a) of a part of the third condensed water drainage groove (35) opens to the first inclined portion (51) of the lower end edge (29) of the cool storage material enclosing portion (24), and the remaining third portion The lower end of the inclined groove portion (35a) of the condensed water drainage groove (35) is open to the second inclined portion (52) of the lower end edge (29) of the cool storage material enclosing portion (24).
この蓄冷材容器(50)を備えた蓄冷機能付きエバポレータを有するカーエアコンにおいて、圧縮機の作動時には、蓄冷材容器(16)表面に発生した凝縮水は第１〜第３凝縮水排水溝(33)(34)(35)内に入り、表面張力により第１〜第３凝縮水排水溝(33)(34)(35)の両側の排水溝用凸部(36)に沿うようにして第１〜第３凝縮水排水溝(33)(34)(35)内に溜まる。溜まった凝縮水が多くなると、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って、第１〜第３凝縮水排水溝(33)(34)(35)内を流下する。第１および第２凝縮水排水溝(33)(34)内を流下した凝縮水は蓄冷材封入部(24)の風上側縁(26)に移行し、垂直状の風上側縁(26)に沿って下方に流れ、下ヘッダタンク(3)の風上側下ヘッダ部(11)上に落下し、傾斜部(11a)に沿って流下して下ヘッダタンク(3)の下方に排水される。第３凝縮水排水溝(35)内を流下した凝縮水は蓄冷材封入部(24)の下端縁(29)の第１傾斜部(51)および第２傾斜部(52)に移行し、さらに第１傾斜部(51)および第２傾斜部(52)に沿ってその傾斜下端部に向かって流れる。したがって、両傾斜部(51)(52)の傾斜下端部に短時間で多くの凝縮水が集まり、凝縮水に作用する重力が短時間で表面張力よりも大きくなって、第１傾斜部(51)の傾斜下端部から下ヘッダタンク(3)の風上側下ヘッダ部(11)上に落下し、傾斜部(11a)に沿って流下して下ヘッダタンク(3)の下方に排水されるとともに、第２傾斜部(52)の傾斜下端部から下ヘッダタンク(3)の風下側下ヘッダ部(9)上に落下し、傾斜部(9a)に沿って流下して下ヘッダタンク(3)の下方に排水される。特に、第１傾斜部(51)の傾斜方向と、下端が第１傾斜部(51)に開口した第３凝縮水排水溝(35)の傾斜溝部(35a)の傾斜方向とが一致しているので、第３凝縮水排水溝(35)内を流下してきた凝縮水は、スムーズに第１傾斜部(51)に移行し、第１傾斜部(51)に沿ってその傾斜下端部に向かって流れやすくなる。したがって、第１傾斜部(51)の傾斜下端部に短時間で多くの凝縮水が集まり、凝縮水に作用する重力が短時間で表面張力よりも大きくなって、傾斜部の傾斜下端部から下ヘッダタンク(3)の風上側下ヘッダ部(11)上に落下することになり、排水効率が向上する。 In a car air conditioner having an evaporator with a cool storage function equipped with this cool storage material container (50), when the compressor is operating, the condensed water generated on the surface of the cool storage material container (16) is the first to third condensed water drainage grooves (33 )(34)(35), and by the surface tension, the first to third condensed water drain grooves (33) ~ It collects in the 3rd condensate drainage ditch (33)(34)(35). 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 through the first to third condensed water drain grooves (33), (34) and (35). The condensed water that has flowed down in the first and second condensed water drainage grooves (33) (34) moves to the windward edge (26) of the regenerator material enclosing portion (24) and becomes a vertical windward edge (26). It flows downwards, falls on the windward lower header section (11) of the lower header tank (3), flows down along the inclined section (11a), and is discharged below the lower header tank (3). The condensed water that has flowed down in the third condensed water drainage groove (35) moves to the first inclined portion (51) and the second inclined portion (52) of the lower end edge (29) of the cold storage material enclosing portion (24), and It flows toward the lower end of the inclined portion along the first inclined portion (51) and the second inclined portion (52). Therefore, a large amount of condensed water gathers at the lower ends of the inclined portions (51) and (52) in a short time, the gravity acting on the condensed water becomes larger than the surface tension in a short time, and the first inclined portion (51 ) Of the lower header tank (3) falls on the windward lower header section (11), flows down along the inclined section (11a), and is discharged below the lower header tank (3). , The lower end of the second inclined part (52) falls on the leeward side lower header part (9) of the lower header tank (3) and flows down along the inclined part (9a) to the lower header tank (3). Drained below. In particular, the inclination direction of the first inclined portion (51) and the inclination direction of the inclined groove portion (35a) of the third condensed water drainage groove (35) whose lower end is open to the first inclined portion (51) match. Therefore, the condensed water that has flowed down in the third condensed water drainage groove (35) smoothly moves to the first inclined portion (51) and moves toward the lower end of the inclined portion along the first inclined portion (51). It becomes easy to flow. Therefore, a large amount of condensed water gathers at the lower end of the slope of the first inclined portion (51) in a short time, and the gravity acting on the condensed water becomes larger than the surface tension in a short time, so that the lower part of the inclined lower part of the inclined portion is lowered. The header tank (3) will fall onto the downwind header section (11), improving drainage efficiency.
図８および図９は図１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第２の変形例を示す。 8 and 9 show a second modified example of the cool storage material container used in the evaporator with a cool storage function of FIG.
図８および図９に示す蓄冷材容器(60)の場合、蓄冷材封入部(24)の下端縁(29)に、風下側から風上側に向かって下方に傾斜した第１の傾斜部(61)と、風下側から風上側に向かって上方に傾斜した第２の傾斜部(62)とが設けられている。第１傾斜部(61)は蓄冷材封入部(24)の下端縁(29)の風下側半部に設けられ、第２傾斜部(62)は蓄冷材封入部(24)の下端縁(29)の風上側半部に設けられ、第１傾斜部(61)の風上側端部と第２傾斜部(62)の風下側端部とが連なっており、第１傾斜部(61)と第２傾斜部(62)との連接部は下ヘッダタンク(3)の排水部(12)上に位置している。ここで、第１傾斜部(61)と第２傾斜部(62)の長さおよび水平線に対する傾斜角度はそれぞれ等しくなっている。
In the case of the regenerator material container (60) shown in FIGS. 8 and 9, the lower edge (29) of the regenerator material enclosing portion (24) has a first inclined portion (61) inclined downward from the leeward side toward the upwind side. ) And a second inclined portion (62) inclined upward from the leeward side toward the leeward side. The first sloped portion (61) is provided on the leeward side half of the lower end edge (29) of the cold storage material enclosing portion (24), and the second inclined portion (62) is located at the lower end edge (29) of the cold storage material enclosing portion (24). ), the windward end of the first inclined portion (61) and the leeward end of the second inclined portion (62) are connected to each other, and the first inclined portion (61) and the first inclined portion (61) are connected to each other. The connecting part with the two inclined parts (62) is located on the drain part (12) of the lower header tank (3). Here, the first
両容器構成板(22)(23)の帯状部(22a)(23a)どうしのろう付部(25)における蓄冷材封入部(16)の下端縁(29)の第１傾斜部(61)および第２傾斜部(62)の下方に位置する部分には、蓄冷材封入部(16)の下端縁(29)の第１傾斜部(61)および第２傾斜部(62)と同方向に傾斜した２つの傾斜ろう付部(25d)(25e)が設けられている。すなわち、蓄冷材封入部(24)の下端縁(29)の第１傾斜部(61)の下方には風下側から風上側に向かって下方に傾斜した第１傾斜ろう付部(25d)が設けられ、同じく第２傾斜ろう付部(62)の下方には風下側から風上側に向かって上方に傾斜した第２傾斜部(25e)が設けられている。 The first sloped portion (61) of the lower end edge (29) of the cold storage material enclosing portion (16) in the brazing portion (25) between the strip-shaped portions (22a) (23a) of both container component plates (22) (23) and In a portion located below the second inclined portion (62), the lower end edge (29) of the cold storage material enclosing portion (16) is inclined in the same direction as the first inclined portion (61) and the second inclined portion (62). The two inclined brazing parts (25d) and (25e) are provided. That is, below the first inclined portion (61) of the lower end edge (29) of the cold storage material enclosing portion (24), the first inclined brazing portion (25d) inclined downward from the leeward side toward the windward side is provided. Similarly, below the second inclined brazing portion (62), there is provided a second inclined portion (25e) which is inclined upward from the leeward side toward the windward side.
一部の第３凝縮水排水溝(35)の傾斜溝部(35a)の下端が蓄冷材封入部(24)の下端縁(29)の第１傾斜部(61)に開口し、残りの第３凝縮水排水溝(35)の傾斜溝部(35a)の下端が蓄冷材封入部(24)の下端縁(29)の第２傾斜部(62)に開口している。 The lower end of the inclined groove portion (35a) of a part of the third condensed water drainage groove (35) opens to the first inclined portion (61) of the lower end edge (29) of the cold storage material enclosing portion (24), and the remaining third portion The lower end of the inclined groove portion (35a) of the condensed water drainage groove (35) opens to the second inclined portion (62) of the lower end edge (29) of the cool storage material enclosing portion (24).
この蓄冷材容器(60)を備えた蓄冷機能付きエバポレータを有するカーエアコンにおいて、圧縮機の作動時には、蓄冷材容器(16)表面に発生した凝縮水は第１〜第３凝縮水排水溝(33)(34)(35)内に入り、表面張力により第１〜第３凝縮水排水溝(33)(34)(35)の両側の排水溝用凸部(36)に沿うようにして第１〜第３凝縮水排水溝(33)(34)(35)内に溜まる。溜まった凝縮水が多くなると、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って、第１〜第３凝縮水排水溝(33)(34)(35)内を流下する。第１および第２凝縮水排水溝(33)(34)内を流下した凝縮水は蓄冷材封入部(24)の風上側縁(26)に移行し、垂直状の風上側縁(26)に沿って下方に流れ、下ヘッダタンク(3)の風上側下ヘッダ部(11)上に落下し、傾斜部(11a)に沿って流下して下ヘッダタンク(3)の下方に排水される。第３凝縮水排水溝(35)内を流下した凝縮水は蓄冷材封入部(24)の下端縁(29)の第１傾斜部(61)および第２傾斜部(62)に移行し、さらに第１傾斜部(61)および第２傾斜部(62)に沿ってその傾斜下端部に向かって流れる。したがって、両傾斜部(61)(62)の傾斜下端部に短時間で多くの凝縮水が集まり、凝縮水に作用する重力が短時間で表面張力よりも大きくなって、両傾斜部(61)(62)の傾斜下端部から下ヘッダタンク(3)の排水部(12)に落下し、排水部(12)から下ヘッダタンク(3)の下方に排水される。特に、第１傾斜部(61)の傾斜方向と、下端が第１傾斜部(61)に開口した第３凝縮水排水溝(35)の傾斜溝部(35a)の傾斜方向とが一致しているので、第３凝縮水排水溝(35)内を流下してきた凝縮水は、スムーズに第１傾斜部(61)に移行し、第１傾斜部(61)に沿ってその傾斜下端部に向かって流れやすくなる。したがって、第１傾斜部(61)の傾斜下端部に短時間で多くの凝縮水が集まり、凝縮水に作用する重力が短時間で表面張力よりも大きくなって、両傾斜部(61)(62)の傾斜下端部から下ヘッダタンク(3)の排水部(12)上に落下することになり、排水効率が向上する。 In a car air conditioner having an evaporator with a cool storage function provided with this cool storage material container (60), when the compressor is operating, the condensed water generated on the surface of the cool storage material container (16) has the first to third condensed water drain grooves (33). )(34)(35), and by the surface tension, the first to third condensed water drain grooves (33) ~ It collects in the 3rd condensate drainage ditch (33)(34)(35). 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 through the first to third condensed water drain grooves (33), (34) and (35). The condensed water that has flowed down in the first and second condensed water drainage grooves (33) (34) moves to the windward edge (26) of the cold storage material enclosing portion (24), and becomes the vertical windward edge (26). It flows downwards, falls on the windward lower header section (11) of the lower header tank (3), flows down along the inclined section (11a), and is discharged below the lower header tank (3). The condensed water flowing down in the third condensed water drainage groove (35) moves to the first inclined portion (61) and the second inclined portion (62) of the lower end edge (29) of the regenerator material enclosing portion (24), and further, Flows toward the lower end of the inclined portion along the first inclined portion (61) and the second inclined portion (62). Therefore, a large amount of condensed water gathers at the lower ends of the slopes of both slopes (61) (62) in a short time, and the gravity acting on the condensed water becomes larger than the surface tension in a short time. The lower end of the slant of (62) falls to the drainage section (12) of the lower header tank (3), and is drained from the drainage section (12) to below the lower header tank (3). In particular, the inclination direction of the first inclined portion (61) and the inclination direction of the inclined groove portion (35a) of the third condensed water drainage groove (35) whose lower end is open to the first inclined portion (61) match. Therefore, the condensed water that has flowed down in the third condensed water drainage groove (35) smoothly moves to the first inclined portion (61) and moves toward the lower end of the inclined portion along the first inclined portion (61). It becomes easy to flow. Therefore, a large amount of condensed water gathers at the lower end of the slope of the first inclined portion (61) in a short time, and the gravity acting on the condensed water becomes larger than the surface tension in a short time, so that both inclined portions (61) (62) ) Of the lower header tank (3) is dropped from the lower end of the inclined part of () to improve the drainage efficiency.
上述した第１および第２の変形例の蓄冷材容器(50)(60)において、第１傾斜部(51)(61)と第２傾斜部(52)(62)の長さおよび水平線に対する傾斜角度はそれぞれ等しくなっているが、これに限定されるものではなく、第１傾斜部(51)(61)と第２傾斜部(52)(62)の長さおよび水平線に対する傾斜角度のうち少なくともいずれか一方は異なっていてもよい。 In the cold storage material containers (50) (60) of the first and second modifications described above, the lengths of the first inclined portions (51) (61) and the second inclined portions (52) (62) and the inclination with respect to the horizontal line. The angles are equal to each other, but are not limited to this, and at least the lengths of the first inclined portions (51) (61) and the second inclined portions (52) (62) and the inclination angle with respect to the horizontal line. Either one may be different.
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 cooler-equipped evaporator according to the present invention is preferably used in a refrigeration cycle that constitutes 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.
(1)：蓄冷機能付きエバポレータ
(4)：熱交換コア部
(13)：冷媒流通管
(14)：管組
(15A)(15B)：間隙
(16)(50)(60)：蓄冷材容器
(17)：アウターフィン
(22)(23)：容器構成板
(22a)(23a)：帯状部
(24)：蓄冷材封入部
(25)；帯状部のろう付部(接合部)
(25b)(25c)(25d)(25e)：傾斜ろう付部(傾斜接合部）
(29)：蓄冷材封入部の下端縁
(31)：傾斜部
(32)：蓄冷材封入部の左右両側壁
(33)：第１凝縮水排水溝
(34)：第２凝縮水排水溝
(35)：第３凝縮水排水溝
(35a)：傾斜溝部
(51)(61)：第１傾斜部
(52)(62)：第２傾斜部
(1): Evaporator with cold storage function
(4): Heat exchange core
(13): Refrigerant distribution pipe
(14): Pipe assembly
(15A)(15B): Gap
(16)(50)(60): Regenerator material container
(17): Outer fin
(22)(23): Container plate
(22a)(23a): Band
(24): Regenerator material enclosure
(25); Brazing part of band (joint part)
(25b)(25c)(25d)(25e): Inclined brazing part (inclined joint part)
(29): Lower edge of the regenerator material enclosure
(31): Inclined part
(32): Left and right side walls of the regenerator material enclosure
(33): First condensed water drainage ditch
(34): Second condensed water drainage ditch
(35): Third condensate drain
(35a): Inclined groove
(51)(61): First inclined part
(52)(62): Second inclined part
Claims (6)
前記蓄冷材容器の前記蓄冷材封入部の前記下端縁に、風下側から風上側に向かって上方または下方に傾斜した傾斜部が少なくとも１つ設けられており、当該傾斜部に少なくともいずれか１つの前記凝縮水排水溝の下端が開口し、前記蓄冷材封入部の前記下端縁の前記傾斜部の下方に、前記両容器構成板の互いに接合された前記帯状部からなりかつ前記蓄冷材封入部の前記傾斜部と同方向に傾斜した傾斜接合部が設けられている蓄冷機能付きエバポレータ。 A plurality of flat refrigerant tubes, hollow cold storage container which cold accumulating material is sealed in the cold accumulating material sealed portion with the cold storage material filled section is provided for the ventilation direction in the width direction with directing the longitudinal direction in the vertical direction and it includes a heat exchange core having a fin in the heat exchange core section, by being more disposed the refrigerant flow tube at predetermined intervals in the left-right direction, of the refrigerant tubes each other laterally adjacent directions gap is formed between the cold storage container, together with a flat with its width direction in the ventilating direction with directing the longitudinal direction in the vertical direction, and a plurality are part of all of the gap first are arranged so as to be in contact with the refrigerant tubes into the gap, the fins, the are arranged in contact with the refrigerant tubes rest in and a plurality of second gap of all the gaps, the cold storage container is, It consists of two metal container-constituting plates whose peripheral strips having a constant width are joined to each other, and the portions of the two container-constituting plates excluding the jointed strip-shaped parts bulge outwardly. The regenerator material encapsulating portion is provided by being made, the joint portion composed of the strip-shaped portion of the container component plate is located at an intermediate portion in the thickness direction of the regenerator material enclosing portion, the regenerator material enclosing portion, has a lower edge which projects to the left and right directions than the joint, either at least one of the left and right side walls of the portion located within the ventilating direction of the heat exchange core portion of the cold accumulating material enclosing portion of the cold storage container On the outer surface of one of the side walls, there are a plurality of condensed water drainage grooves that have a constant flow path length in the vertical direction and open at both upper and lower ends, and that allow condensed water to flow downward from above and drain from the lower end opening. are formed at intervals, cool storage function of at least the lower end of one of the condensed water drains out of the plurality of condensed water drainage grooves open to the lower edge of the cold accumulating material enclosing portion of the cold storage container An evaporator with
The lower edge of the cold accumulating material enclosing portion of the cold storage container, inclined portion inclined upward or downward from the leeward side to the windward side is provided at least one, at least one of the said inclined portion wherein to lower end openings of the condensed water drain grooves, wherein below the inclined portion of the lower edge of the cold accumulating material enclosing portion, wherein both containers construction plates from the joined the strip portion becomes and the cold accumulating material enclosing portion to each other An evaporator with a cold storage function, which is provided with an inclined joint portion that is inclined in the same direction as the inclined portion .
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|---|---|---|---|
| JP2016167874A JP6722549B2 (en) | 2016-08-30 | 2016-08-30 | Evaporator with cold storage function |
| CN201720271757.3U CN206648353U (en) | 2016-08-30 | 2017-03-20 | Evaporator with cool storage function |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2016167874A JP6722549B2 (en) | 2016-08-30 | 2016-08-30 | Evaporator with cold storage function |
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| Publication Number | Publication Date |
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| JP2018035975A JP2018035975A (en) | 2018-03-08 |
| JP6722549B2 true JP6722549B2 (en) | 2020-07-15 |
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| JP (1) | JP6722549B2 (en) |
| CN (1) | CN206648353U (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5899667A (en) * | 1981-12-10 | 1983-06-14 | 松下精工株式会社 | Heat exchanger |
| JPS6149269U (en) * | 1984-09-04 | 1986-04-02 | ||
| JP3085137B2 (en) * | 1995-04-21 | 2000-09-04 | 株式会社デンソー | Stacked heat exchanger |
| JP3154401B2 (en) * | 1997-06-30 | 2001-04-09 | 株式会社ゼクセルヴァレオクライメートコントロール | Vehicle refrigeration equipment |
| JP4344659B2 (en) * | 2003-07-08 | 2009-10-14 | 昭和電工株式会社 | Evaporator |
| JP2006046694A (en) * | 2004-07-30 | 2006-02-16 | Daikin Ind Ltd | Refrigerating device |
| JP6088818B2 (en) * | 2012-12-27 | 2017-03-01 | 株式会社ケーヒン・サーマル・テクノロジー | Evaporator with cool storage function |
| JP2015045471A (en) * | 2013-08-29 | 2015-03-12 | 株式会社ケーヒン・サーマル・テクノロジー | Evaporator |
| JP6449032B2 (en) * | 2015-01-28 | 2019-01-09 | アクア株式会社 | COOLER, MANUFACTURING METHOD THEREOF, AND REFRIGERATOR HAVING THE COOLER |
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| JP2018035975A (en) | 2018-03-08 |
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