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、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と、冷媒流通管の上下両側に配置されて冷媒流通管が接続された上下両ヘッダ部とを備えており、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管組どうしの間に間隙が形成されるとともに、左右方向に並んだ複数の冷媒流通管からなる２つの管列が通風方向に並んで設けられ、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間隙に管組の２つの冷媒流通管に跨るように配置され、フィンが、前記全間隙の残りの複数の第２間隙に管組の２つの冷媒流通管に跨るように配置され、上下両ヘッダ部が、各管列の上下両側に配置されるとともに当該管列の冷媒流通管が上下両ヘッダ部に通じさせられ、通風方向に隣り合う下ヘッダ部間に上方に開口した排水部が形成されており、蓄冷材容器の蓄冷材封入部における熱交換コア部の通風方向の範囲内に位置する部分の左右両側壁外面に、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路が通風方向に間隔をおいて形成され、各凝縮水排水路が、蓄冷材容器の蓄冷材封入部の前記両側壁に通風方向に間隔をおいて設けられて外方に膨出し、かつ冷媒流通管にろう付された２つの排水路用凸部間に形成され、凝縮水排水路の少なくとも下部に、下方に向かって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側に傾斜した傾斜部が設けられている蓄冷機能付きエバポレータを提案した（特許文献１参照）。
As an evaporator with this type of cool storage function, the present applicant has previously provided a plurality of flat refrigerant flow pipes having a longitudinal direction in the up-down direction and a width direction in the ventilation direction, and a cool storage material enclosing portion. A heat storage core part having a cold storage material container and fins in which the cold storage material is enclosed in the material enclosure part, and upper and lower header parts arranged on both upper and lower sides of the refrigerant flow pipe and connected to the refrigerant flow pipe, In the heat exchange core part, a plurality of pipe sets each including two refrigerant flow pipes arranged at intervals in the ventilation direction are arranged at intervals in the left-right direction, so that the pipe sets adjacent to each other in the left-right direction are arranged. A gap is formed in the tube, and two tube rows composed of a plurality of refrigerant flow tubes arranged in the left-right direction are provided side by side in the ventilation direction, and the cold storage material container has a longitudinal direction in the vertical direction and ventilation in the width direction. And is disposed so as to straddle the two refrigerant flow pipes of the pipe set in a plurality of first gaps and in a plurality of first gaps, and the fins are the rest of the gaps. The plurality of second gaps are arranged so as to straddle the two refrigerant flow pipes of the pipe set, and the upper and lower header parts are arranged on both upper and lower sides of each pipe row, and the refrigerant flow pipes of the pipe row are the upper and lower header parts. Is formed between the lower header portions adjacent to each other in the ventilation direction, and a drainage portion that is open upward is formed, and the portion that is located within the range in the ventilation direction of the heat exchange core portion in the cool storage material enclosure portion of the cool storage material container 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 condensate to flow downward from above and drain from the lower end opening in the ventilation direction. Formed at intervals, each condensate drainage channel is cold storage Condensed water formed between two drainage channel convex portions provided on the both side walls of the cool storage material enclosing portion of the container at intervals in the ventilation direction and bulging outward and brazed to the refrigerant flow pipe An evaporator with a cold storage function has been proposed in which an inclined portion inclined to the first side of either the upwind side or the downwind side in the ventilation direction is provided at least in the lower part of the drainage channel (Patent Document 1). reference).
この実施形態においては、スペーサ用凸部(33)は、前記左側壁(27)における第３凝縮水排水路(31)の下端よりも下方の位置に２つ形成され、蓄冷材容器(18)の左側の管組(14)の１つの冷媒流通管(13)に１つのスペーサ用凸部(33)の突出端部が接触しているが、これに限定されるものではなく、２以上のスペーサ用凸部(33)の突出端部が１つの冷媒流通管(13)に接触するように、必要数のスペーサ用凸部(33)が左側壁(27)に形成されていてもよく、要は少なくとも１つのスペーサ用凸部(33)の突出端部が１つの冷媒流通管(13)に接触していればよい。
In this embodiment, two convex portions for the spacer (33) are formed at positions below the lower end of the third condensed water drainage channel (31) in the left side wall (27), and the cold storage material container (18) The protruding end portion of one spacer convex portion (33) is in contact with one refrigerant flow pipe (13) of the left tube assembly (14), but is not limited to this. A required number of spacer protrusions (33) may be formed on the left side wall (27) such that the protruding end of the spacer protrusion (33) contacts one refrigerant flow pipe (13). In short, it is only necessary that the protruding end portion of at least one spacer convex portion (33) is in contact with one refrigerant flow pipe (13).