Concave-convex evaporator

Abstract

In order to improve cooling efficiency, the present disclosure provides a concave-convex evaporator including a first plate bent in a concave-convex shape in which a peak part and a valley part extending in a longitudinal direction are repeatedly alternately formed in a transverse direction, a second plate bent in a concave-convex shape of which one surface is repeatedly alternately formed to face one surface of the first plate, and a spacer part provided between the first plate and the second plate to maintain a separation interval so that a refrigerant flow path is formed.

What is claimed is: 
     
         1 . A concave-convex evaporator comprising:
 a first plate bent in a concave-convex shape in which a peak part and a valley part extending in a longitudinal direction are repeatedly alternately formed in a transverse direction;   a second plate bent in a concave-convex shape of which one surface is repeatedly alternately formed to face one surface of the first plate; and   a spacer part provided between the first plate and the second plate to maintain a separation interval so that a refrigerant flow path is formed.   
     
     
         2 . The concave-convex evaporator of  claim 1 , wherein the spacer part is integrally bent so that at least one of the first plate and the second plate is pressed and thus protrudes toward a facing surface. 
     
     
         3 . The concave-convex evaporator of  claim 2 , wherein a bonding part is provided such that a bonding agent bonds and seals between at least one of the first plate and the second plate and a surface of the spacer part that face each other. 
     
     
         4 . The concave-convex evaporator of  claim 2 , wherein the spacer part includes:
 a first partition wall part extending from one side to the other end with a flow path interval therebetween along the peak part; and   a second partition wall part extending from the other side to one end with the flow path interval therebetween along the valley part.   
     
     
         5 . The concave-convex evaporator of  claim 2 , wherein the spacer part includes an edge partition wall part that is stepped and bent along an edge of at least one of the first plate and the second plate and has an inlet and an outlet of the refrigerant flow path formed at both ends thereof,
 wherein ends of an inlet connection pipe and an outlet connection pipe connected to the refrigerant flow path are provided in shapes corresponding to shapes of the inlet and the outlet.   
     
     
         6 . The concave-convex evaporator of  claim 5 , further comprising a reinforcement frame in which both ends of the first plate and the second plate are fixedly fitted at the same time and which has an insertion groove in which a communication hole communicating with the inlet and the outlet is open. 
     
     
         7 . The concave-convex evaporator of  claim 1 , wherein the spacer part is stacked between the first plate and the second plate. 
     
     
         8 . The concave-convex evaporator of  claim 7 , wherein the spacer includes:
 a first partition wall part that is stacked between the peak parts and extends from one side to the other end with a flow path interval therebetween; and   a second partition wall part that is stacked between the valley parts and extends from the other side to one end with the flow path interval therebetween.   
     
     
         9 . The concave-convex evaporator of  claim 8 , wherein a bonding part is provided such that a bonding agent bonds and seals between the first plate and the second plate and surfaces of the spacer part that face each other. 
     
     
         10 . The concave-convex evaporator of  claim 8 , wherein the spacer part includes:
 an edge partition wall part including a pair of transverse partition wall parts provided along an outer edge between the first plate and the second plate and connecting the other end of the first partition wall part and one end of the second partition wall part in a transverse direction and a pair of vertical partition wall parts connecting both ends of the pair of transverse partition wall parts;   an inlet and an outlet of the refrigerant flow path are formed in the edge partition wall part; and   ends of an inlet connection pipe and an outlet connection pipe connected to the inlet and the outlet are provided in shapes corresponding to shapes of the inlet and the outlet.   
     
     
         11 . The concave-convex evaporator of  claim 10 , further comprising a reinforcement frame having an insertion groove having a shape corresponding to shapes of both ends of the first plate, the second plate, and the spacer part overlapping each other. 
     
     
         12 . The concave-convex evaporator of  claim 1 , wherein the refrigerant flow path is formed such that a constant cross-sectional area perpendicular to a flow direction of a refrigerant is maintained. 
     
     
         13 . The concave-convex evaporator of  claim 1 , wherein a gap between a pair of connection parts for connecting the peak part and the valley part is inclined in a form that gradually increases from the valley part to the peak part. 
     
     
         14 . The concave-convex evaporator of  claim 1 , further comprising a partition jig including a plurality of opening holes open such that a cooling space communicates with an outside and a partition wall connected to one side of an edge of each of the opening holes and inserted into the cooling space so that the partition jig is disposed on at least one of the first plate and the second plate and an ice generating groove is partitioned in the cooling space formed along each concave portion of the concave-convex shape. 
     
     
         15 . A concave-convex evaporator comprising:
 a first plate bent in a concave-convex shape in which a peak part and a valley part extending in a longitudinal direction are repeatedly alternately formed in a transverse direction;   a second plate bent in a concave-convex shape of which one surface is repeatedly alternately formed to face one surface of the first plate; and   a partition jig which is disposed in at least one of the first plate and the second plate and in which a plurality of partition walls inserted into a cooling space formed along each concave portion of the concave-convex shape are arranged so that an ice generating groove is partitioned in the cooling space,   wherein a spacer part is integrally formed in at least one of the first plate and the second plate so that a separation distance for forming a refrigerant flow path is maintained between the first plate and the second plate, and the spacer part includes a first partition wall part extending from one side to the other end with a flow path interval therebetween along the peak part, a second partition wall part extending from the other side to one end with the flow path interval therebetween along the valley part, and an edge partition wall part which is stepped and bent along an edge of at least one of the first plate and the second plate and in which an inlet and an outlet of the refrigerant flow path are formed at both ends thereof, and   a bonding part is provided such that a bonding agent bonds and seals between at least one of the first plate and the second plate and a surface of the spacer part that face each other.   
     
     
         16 . A concave-convex evaporator comprising:
 a first plate bent in a concave-convex shape in which a peak part and a valley part extending in a longitudinal direction are repeatedly alternately formed in a transverse direction;   a second plate bent in a concave-convex shape of which one surface is repeatedly alternately formed to face one surface of the first plate;   a spacer part including a first partition wall part that is stacked between the peak parts and extends from one side to the other end with a flow path interval therebetween, a second partition wall part that is stacked between the valley parts and extends from the other side to one end with the flow path interval therebetween, and an edge partition wall part provided along an outer edge between the first plate and the second plate so that a separation distance for forming a refrigerant flow path between the first plate and the second plate is maintained, an inlet and an outlet of the refrigerant flow path being formed at both ends thereof;   a bonding part provided such that a bonding agent bonds and seals between the first plate and the second plate and surfaces of the spacer part that face each other; and   a partition jig which is disposed in at least one of the first plate and the second plate and in which a plurality of partition walls inserted into a cooling space formed along each concave portion of the concave-convex shape are arranged so that an ice generating groove is partitioned in the cooling space.