Heat exchanger
AssigneesHyundai Wia Corporation, Korens Co., Ltd.
InventorsHyeong Gi Lee, Sang Min Lee, Won Sang Lee, Do Gyu Kim
Life of this patent
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Abstract
A heat exchanger is disclosed. A first heat-exchanging plate, in which plural kinds of cooling water are circulated, and a second heat-exchanging plate, in which refrigerant is circulated, have respective independent flow channels to prevent mixing between the cooling water and the refrigerant. The first and second heat-exchanging plates have respective guides, which are layered so as to form an overlapping structure, thereby improving coupling capability and durability when the first and second heat-exchanging plates are welded to each other in the state of being layered.
Claims14
A heat exchanger comprising:
- a housing comprising first and second cooling water inlet ports and first and second cooling water outlet ports, through which cooling water is circulated, and a refrigerant inlet port and a refrigerant outlet port, through which refrigerant is circulated;
- a plurality of first heat-exchanging plates, each of which is connected to the first and second cooling water inlet ports and the first and second cooling water outlet ports and comprises a first guide configured to define a cooling water channel;
- and
- a plurality of second heat-exchanging plates, each of which is connected to the refrigerant inlet port and the refrigerant outlet port and comprises a second guide configured to define a refrigerant channel,
- wherein the plurality of first heat-exchanging plates and the plurality of second heat-exchanging plates are alternately layered, and
- wherein the first guide and the second guide form an overlapping structure such that one of the first guide and the second guide is inserted into the other of the first guide and the second guide when the first heat-exchanging plates and the second heat-exchanging plates are layered,
- wherein the first guide comprises a first central partition wall, which extends at a central area on the first heat-exchanging plate to divide the first heat-exchanging plate into a first side and a second side, a first side partition wall, which extends toward the second side from the first side of the first heat-exchanging plate to define a cooling water channel between the first cooling inlet and the first cooling water outlet port, and a second side partition wall, which extends toward the first side from the second side of the first heat-exchanging plate to define a cooling water channel between the second cooling water inlet port and the second cooling water outlet port,
- wherein the second guide comprises a second central partition wall disposed between the refrigerant inlet port and the refrigerant outlet port, a third side partition wall, which extends toward the first side from the second central partition wall, and a fourth side partition wall, which extends toward the second side from the second central partition wall,
- wherein the first side partition wall and the third side partition wall are positioned so as to correspond to each other in a vertical direction and to be partially engaged with each other, and one of the engaging portions of the first side partition wall and the third side partition wall is inserted into another of the first side partition wall and the third side partition wall, and
- wherein the second side partition wall and the fourth side partition wall are positioned so as to correspond to each other in a vertical direction and to be partially engaged with each other, and one of the engaging portions of the second side partition wall and the fourth side partition wall is inserted into another of the second side partition wall and the fourth side partition wall.
Dependencies are inferred from the claim text.