Evaporator having cold thermal energy storage function
View Patent ↗An evaporator having a plurality of flat refrigerant flow tubes disposed in parallel such that their width direction coincides with an air flow direction and they are spaced from one another. Air-passing clearances are formed between adjacent refrigerant flow tubes. Cool storage material containers filled with a cool storage material are disposed in some of the air-passing clearances, and each cool storage material container is brazed to the refrigerant flow tubes located on opposite sides thereof. Corrugated fins are disposed in the remaining air-passing clearances, and each fin is brazed to the refrigerant flow tubes located on opposite sides thereof. Each cool storage material container includes a plurality of convex portions projecting outward from opposite side surfaces thereof, and projecting ends of the convex portions are joined to the corresponding refrigerant flow tubes.
1. An evaporator with a cool storage function, comprising:
a plurality of refrigerant flow tubes each having a first side wall and a second side wall opposite to the first side wall and provided to form spaces between the first side wall and the second side wall such that the first side wall of one of the plurality of refrigerant flow tubes faces the second side wall of another of the plurality of refrigerant flow tubes, the spaces having a first part and a second part other than the first part;
fins provided in the first part of the spaces;
cool storage material containers containing a cool storage material, each of the cool storage material containers having a longitudinal direction and including a third side wall and a fourth side wall opposite to the third side wall, the third side wall and the fourth side wall having first convex portions and second convex portions, respectively, the cool storage material containers being provided in the second part of the spaces such that the first convex portions contact the first side wall of the one of the plurality of refrigerant flow tubes and the second convex portions contact the second side wall of the another of the plurality of refrigerant flow tubes, the first convex portions and the second convex portions extending to incline with respect to the longitudinal direction, wherein the interiors of all of the cool storage material containers are connected with one another via a communication member.
2. The evaporator with a cool storage function according to claim 1 , wherein the first convex portions and the second convex portions extend from a lower portion to an upper portion along an air flow direction along which air is to flow through the evaporator for heat exchange.
3. The evaporator with a cool storage function according to claim 1 , wherein interiors of the cool storage material containers are connected with one another, and wherein a cool storage material charging port is provided in one of the cool storage material containers.
4. The evaporator with a cool storage function according to claim 1 , wherein a cool storage material charging port is provided in the communication member or one of the cool storage material containers.