Heat exchanger
A heat exchanger provided with: a plate member having a flat bottom part and a refrigerant flow path formed therein; and a plate cover for covering the plate member. The plate cover has a refrigerant inlet communicating with an area on one side of the refrigerant flow path, and a refrigerant outlet communicating with an area on the other side of the refrigerant flow path. The refrigerant flow path is more densely arranged in an area far from a straight line connecting the area that is on the one side and communicates with the refrigerant inlet to the area that is on the other side and communicates with the refrigerant outlet, than in an area close to the straight line connecting the area that is on the one side and communicates with the refrigerant inlet to the area that is on the other side and communicates with the refrigerant outlet.
1. A heat exchanger comprising
a plate member having a flat bottom part and having a refrigerant flow path formed therein; and
a plate cover configured to cover the plate member;
wherein
the plate cover has: a refrigerant inlet communicating with an area on one side of the refrigerant flow path of the plate member and; a refrigerant outlet communicating with an area on the other side of the refrigerant flow path of the plate member, and
arrangement density of the refrigerant flow path is higher in an area far from a straight line which connects the area on the one side communicating with the refrigerant inlet to the area on the other side communicating with the refrigerant outlet, than in an area close to the straight line which connects the area on the one side communicating with the refrigerant inlet to the area on the other side communicating with the refrigerant outlet.
2. The heat exchanger according to claim 1 , wherein
the refrigerant flow path has a rhombic lattice pattern in plan view.
3. The heat exchanger according to claim 2 , wherein
groove elements of the rhombic lattice pattern are constant in width perpendicular to an extending direction of each of the groove elements, and
the arrangement density of the refrigerant flow path is dependent on arrangement density of the groove elements of the rhombic lattice pattern.
4. The heat exchanger according to claim 3 , wherein
each of the groove elements has a width of 1.2 mm to 2.0 mm,
each of the groove elements has a depth of 5.0 mm to 8.0 mm, and
the plate member has a thickness of 7.0 mm to 10.0 mm.
5. The heat exchanger according to claim 1 , wherein
the plate member has a circular disk-like shape in plan view,
the straight line, which connects the area on the one side communicating with the refrigerant inlet to the area on the other side communicating with the refrigerant outlet, extends in a diametric direction of the plate member.
6. The heat exchanger according to claim 5 , wherein
the arrangement density of the refrigerant flow path is higher in an area far from a center of the plate member, than in an area close to the center of the plate member.
7. A heat exchanger having a flat bottom part and having a refrigerant flow path formed therein, wherein
a refrigerant inlet communicating with an area on one side of the refrigerant flow path and a refrigerant outlet communicating with an area on the other side of the refrigerant flow path are provided to protrude in the same direction, and
arrangement density of the refrigerant flow path is higher in an area far from a straight line which connects the area on the one side communicating with the refrigerant inlet to the area on the other side communicating with the refrigerant outlet, than in an area close to the straight line which connects the area on the one side communicating with the refrigerant inlet to the area on the other side communicating with the refrigerant outlet.