Cold-storage heat exchanger

A cold storage heat exchanger comprising:

• a plurality of refrigerant tubes having therein refrigerant passages, and arranged to provide a clearance therebetween;
• a cold storage container that is bonded to a refrigerant tube and defines therein a compartment receiving a cold storage material;
• and
• a cooling air passage in which air flows as a wind to cool a space to be cooled in a cold storage time of the cold storage material and in a cold release time of the cold storage material, the cooling air passage being provided to contact a surface of the refrigerant tube on a side opposite to the cold storage container bonded to the refrigerant tube, wherein
• an outer surface of the cold storage container, onto which the refrigerant tube is bonded, is provided with a plurality of protrusion portions or a plurality of recess portions,
• the plurality of protrusion portions include a bonded portion bonded to the refrigerant tube,
• the bonded portion continuously extends from a position facing a windward edge portion of the refrigerant tube to a position facing a leeward edge portion of the refrigerant tube, and
• at least one part of the bonded portion is oblique to a longitudinal direction of the refrigerant tube.