Patent ID: 11971224
Assignee: ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A plate-fin heat exchanger, comprising a heat exchange core, the heat exchange core comprising a plurality of first plates, a plurality of second plates and fins, wherein
the first plate comprises a first plate surface, a plurality of protrusions protruding from the first plate surface, and a second plate surface opposite to the first plate surface,
the second plate comprises a first plate surface and a second plate surface opposite to the first plate surface,
a first fluid passage and a second fluid passage isolated from each other are formed in the heat exchange core, the fin is arranged between the second plate surface of the first plate and the first plate surface of the second plate, and the protrusions are located between the first plate surface of the first plate and the second plate surface of another second plate, a first passage is formed between the second plate surface of the first plate and the first plate surface of the second plate, the first passage is part of the first fluid passage, a second passage is formed between the first plate surface of the first plate and the second plate surface of the second plate, and the second passage is part of the second fluid passage,
the first plate further comprises a first corner hole portion and a second corner hole portion recessed into the first plate surface, and a first recess and a second recess recessed into the first plate surface, wherein the first recess of the first plate is connected with the second recess, part of the protrusions are arranged in a region between the first corner hole portion and the second corner hole portion of the first plate, another part of the protrusions are arranged at a corner portion adjacent to the first corner hole portion and a corner portion adjacent to the second corner hole portion of the first plate,
two end portions of the first recess of the first plate are wider than a middle portion of the first recess, and the two end portions of the first recess of the first plate are wider than the second recess,
wherein a height of the fin is greater than a height of the protrusion, and a ratio of the height of the fin to the height of the protrusion is greater than 1 and less than 4,
the first plate further comprises a third corner hole portion and a fourth corner hole portion protruding from the first plate surface,
protruding structures corresponding to the first recess and the second recess of the first plate are provided on a second plate surface side of the first plate, the second recess is arranged between the third corner hole portion and the fourth corner hole portion, and a portion of the protrusions are distributed on two sides of the first recess,
the second plate further comprises a first corner hole portion and a second corner hole portion protruding from the first plate surface, and a first recess and a second recess recessed into the first plate surface,
protruding structures corresponding to the first recess and the second recess of the second plate are provided on a second plate surface side of the second plate, the first recess is connected with the second recess, and the second recess is arranged between the first corner hole portion and the second corner hole portion of the second plate,
the second plate is further provided with a third corner hole and a fourth corner hole, the fin comprises a first port region corresponding to the first corner hole portion, a second port region corresponding to the second corner hole portion, a third port region corresponding to the third corner hole, a fourth port region corresponding to the fourth corner hole, and a notch region corresponding to the first recess, and part of the fin is located between the first corner hole portion and the second corner hole portion.