Examples of the disclosure relate to heat exchangers. The heat exchangers could be evaporators or condensers. The heat exchangers can comprise a plurality of structures extending from a base plate where adjacent structures are separated by at least a first distance. The heat exchangers can also comprise at least one cover plate positioned over ends of the plurality of structures so that the at least one cover plate is spaced from the ends of the plurality of structures by a second distance where the second distance is smaller than the first distance. The at least one cover plate is brazed to the plurality of structures by brazing material provided between the ends of the plurality of structures and the at least one cover plate. The brazing material is provided in a discontinuous configuration so that gaps are provided between portions of brazing material so that a brazing join is formed from brazing materials that has flowed into spacing between the at least one cover plate and the ends of the plurality of structures.

The present disclosure relates to a heat exchanger. The heat exchanger includes: a plurality of tube panels including a tube elongated in one direction; a pair of header modules coupled to both ends of the plurality of tube panels; and a pair of header cases having an open side, providing a space therein, and having the header module inserted in the space such that the tube panels communicate with the spaces, in which the header modules is composed of a plurality of header blocks stacked and coupled to each other, and an insertion hole in which the tube panel is inserted is formed at each of the plurality of header blocks. Accordingly, it is possible to increase the efficiency of manufacturing a heat exchanger, manufacture a heat exchanger flexibly in a custom-made type in accordance with the size of a product having the heat exchanger, reduce tolerance due to brazing, and improve stability of a product.

This disclosure relates to a method for fabricating a vapor chamber. The method includes positioning a capillary structure on a first cover, forming an accommodation space, a flow channel, and a plurality of posts on a first surface of a second cover, covering the first cover with the second cover, positioning the first cover and the second cover such that the plurality of posts are spaced apart from the capillary structure by a distance, and pressure welding the first cover and the second cover so as to form a chamber between the first cover and second cover and a passage connected to the chamber and to pressure weld the plurality of posts with the capillary structure.

A heat exchanger includes: a copper pipe forming a refrigerant circulation passage; and a plurality of fins arranged at positions spaced apart from each other along one direction and coupled to an outer circumferential surface of the copper pipe, wherein the copper pipe includes: a plurality of straight tubes extending along the arranged direction of the plurality of fins; and a plurality of return bends connected to one end of one of the plurality of straight tubes and one end of another one of the plurality of straight tubes by welding, wherein burrs having a circumference greater than an outer diameter of each straight tube are formed at both ends of the plurality of straight tubes, a distance between a rim of the burr and an outer surface of the straight tube is 0.4 mm to 1.8 mm.

A method of making a heat exchanger that includes sealing tubes to header slots and brazing the tubes to the header slots. The method further includes coupling a cover to the header to cover a liquid-side surface of the header and to cover ends of the tubes, and applying flux to an air-side surface of the header and to the tubes. Coupling the cover to the header is performed after sealing the tubes to the header slots and coupling the cover to the header is performed before applying flux to the air-side surface of the header and to the tubes. Applying flux is performed before brazing each of the tubes to the header slots and sealing each of the tubes to the header slot includes sealing a perimeter of each of the tubes to the header slot.

A heat exchanger in which a connecting part may be coupled to a header tank of the heat exchanger in the short term without using a separate coupling component before a brazing process is performed, and a coupling method of a connecting part thereof. The connecting part is coupled to a first header tank or a second header tank while surrounding a predetermined region of an outer peripheral surface of the first header tank or the second header tank, a region of the connecting part to which external force is locally applied being coupled to the first header tank or the second header tank while protruding together with the first header tank or the second header tank.

A heat exchanger that performs heat exchange between a first fluid and a second fluid includes a first duct plate, a second duct plate, a flow path member, a caulking plate, an insertion projection, and a contact protrusion. The insertion protrusion protrudes from at least one of the first duct plate and the second duct plate toward the caulking plate, and is inserted into an insertion hole defined in the caulking plate. The contact protrusion protrudes from at least one of the first duct plate and the second duct plate toward the caulking plate, and is fixed to, and in contact with, a stopper wall of the caulking plate. A surface of the contact protrusion is in contact with a stopper plane wall when the contact protrusion is fixed to the frame member.

A method of making a heat exchanger includes arranging a plurality of tubes in a formation; welding the plurality of tubes to a header by welding each tube of the plurality of tubes to a respective header slot of a plurality of header slots in the header; coupling a cover to a liquid-side surface of the header to cover an end of each tube of the plurality of tubes; applying flux to an air-side surface of the header and to the plurality of tubes; removing the cover from the header; and brazing each tube of the plurality of tubes to the respective header slot of the plurality of header slots.

A device for flowing fluids therethrough, the device including: a first structure having a first major side, said first structure comprising a first metal composition; a second structure having a second major side abutting said first major side, said second structure comprising a second metal composition; at least one welded region affixing said first major side of said first structure with said second major side of said second structure; at least one fluid channel defined at an unwelded interface of said first major side of said first structure and said second major side of said second structure; and at least one sealing member compressed between said first major side of said first substrate and said second major side of said second substrate, said at least one sealing member comprising a material having a lower hardness than that of said first metal composition and said second metal composition.

An intercooler cools supercharged intake air supplied to an internal combustion engine via a supercharger. The intercooler includes a laminated core that includes cooling tubes laminated in a tube lamination direction, and a communication pipe that is disposed on one side of the laminated core in the tube lamination direction and communicates with the cooling tubes. Cooling fluid exchanging heat with the supercharged intake air flows through the cooling tubes. The communication pipe includes a flat pipe portion connected to the cooling tubes. The flat pipe portion has a flat cross-sectional shape extending in a direction crossing the tube lamination direction.