A hot water device includes a heat exchanger and an apparatus to which the heat exchanger is to be connected. First and second cases for the heat exchanger and the apparatus to which the heat exchanger is to be connected include first and second flange portions laid over each other and welded together. The first and second flange portions are each demarcated into a corner flange portion corresponding to one of first and second corner portions, and into a non-corner flange portion other than the corner flange portion. The non-corner flange portions protrude more to the outside of the first and second cases than the corner flange portions.

A plate heat exchanger gasket includes an elongate body and a first number of elongate projections projecting from an upper side of the body and extending along the gasket's longitudinal extension. Each projection is defined by a top and two opposing flanks extending from the top. Referring to a cross section perpendicular to the gasket longitudinal extension, for each of a second number of unsymmetrical projections of the projections, a first area defined by an outer flank of the flanks, the body upper side and a normal of the body upper side extending through the top of the unsymmetrical projection, is smaller than a second area defined by an inner flank of the flanks, the body upper side and the normal of the body upper side extending through the top of the unsymmetrical projection. This normal is displaced from a center normal of the body upper side.

A tubular heat exchanger includes an upper tube plate box, a lower tube plate box, a plurality of heat exchange tubes, and a pressure bolt. Each heat exchange tube includes an inlet end and an outlet end opposite to the inlet end, the inlet end passes through the upper tube plate box, the outlet end passes through the lower tube plate box, the first sealing rubber is filled in a gap between the plurality of heat exchange tubes and the upper tube plate box, and the second sealing rubber is filled in a gap between the plurality of the heat exchange tubes and lower tube plate box. The pressure bolt is located between the upper tube plate box and the lower tube plate box. The present application also relates to a packaging method of the tubular heat exchanger.

Disclosed is an air intake manifold including a heat exchanger built into its body and including at least two ducts for supplying and removing heat-exchange liquid, the ducts extending through the wall of the body of the manifold with a liquid-tight seal and an airtight seal, which are distinct and mutually offset along the longitudinal axis of the relevant duct being created on each of the ducts. The unit creating the liquid tight seal is arranged between the relevant duct and a circulation pipe connected to the free end of the duct. The unit creating the airtight seal is positioned between the relevant duct and the body of the distributor. A leakage path associated with the liquid-tight seal is created between the latter and the airtight seal.

Examples are disclosed that relate to sealing a heat pipe. One example provides a heat pipe including a heat pipe body having a sealed end at which opposing interior surfaces of the heat pipe body are joined, a sealant located in a least a portion of the sealed end of the heat pipe body between the opposing interior surface, the sealant having a higher oxygen transport rate than the heat pipe body, and a permanent seal forming an outer surface of the sealed end.

A manufacturing method for a vapor chamber, a vapor chamber and a middle frame vapor chamber are disclosed. The manufacturing method for a vapor chamber includes preparing different raw materials for various parts of the vapor chamber, and machining and molding the various parts according to predetermined shapes of the various parts by using corresponding raw materials, assembling the machined and molded various parts of the vapor chamber, and welding and sealing the assembled various parts of the vapor chamber, performing a surface heat treatment on the vapor chamber, performing a passivating treatment on the vapor chamber, assembling the vapor chamber, injecting water into the vapor chamber assembled with the liquid injection pipe, vacuumizing the vapor chamber injected with water, performing a sealing treatment on the vacuumized vapor chamber, and welding the vapor chamber with a reinforcing rib.

A vapor chamber includes a vapor chamber main body, a degassing tube, and a fixing layer. The vapor chamber main body includes a first casing and a second casing correspondingly sealed with the first casing. The first casing is disposed with a tube trough. One of the first casing and the second casing is formed with a filling hole corresponding to the tube trough. The degassing tube is placed in the tube trough. A feeding channel communicating with the filling hole is formed between the degassing tube, the tube trough and the second casing. The fixing layer is formed in the feeding channel to fasten the degassing tube on the vapor chamber main body. Therefore, the production procedure may be simplified and the degassing tube may be firmly fastened on the vapor chamber main body.

A heat exchange device includes a heat exchange main body portion, a joint member, and a resin sealing portion. The heat exchange main body portion has an internal flow path through which a heat exchange medium flows, and a metal wall portion including a through-hole communicating with the internal flow path. The joint member has a protruding portion and a hollow portion. The protruding portion includes an opening through which the heat exchange medium is supplied or discharged. The protruding portion protrudes toward an outside of the heat exchange main body portion through the through-hole. The hollow portion is formed for causing the opening and the internal flow path to communicate with each other. The resin sealing portion seals a gap between an inner peripheral surface of the through-hole and an outer peripheral surface of the protruding portion.

A method includes providing a first metal sheet and a second metal sheet, printing a channel pattern on the first metal sheet, bonding the first metal sheet and the second metal sheet to each other, forming a plurality of channels by introducing a fluid between the first metal sheet and the second metal sheet, introducing working fluid in the plurality of channels, sealing the first metal sheet and the second metal sheet, and forming a plurality of through holes in locations where the first metal sheet and the second metal sheet are bonded to each other. The plurality of through holes are arranged in a plurality of rows, each row including at least two through holes, and each location where the first metal sheet and the second metal sheet are bonded to each other includes a single through hole of the plurality of through holes.

A heat dissipation device includes a base plate and a plurality of fins arranged on the base plate. Each fin includes a fin body including a first metal sheet and a second metal sheet coupled to each other, wherein the fin body is curved and includes a first portion and a second portion transverse to the first portion, an evaporation channel defined in the first portion, one or more connecting channels disposed in the first portion and in fluid communication with the evaporation channel, a condensation channel defined in the second portion, and one or more auxiliary channels disposed in the second portion and in fluid communication with the one or more connecting channels and the condensation channel.