A brazed plate heat exchanger (10) comprises an end plate (11) and a stack of heat exchanger plates (12, 12a, 12b) provided with a pattern comprising ridges (R) and grooves (G) adapted to form contact points (16) between neighbouring heat exchanger plates such that the heat exchanger plates form interplate flow channels for media to 5 exchange heat over the heat exchanger plates, the heat exchanger plates further being provided with port openings (O1-O4) for selective fluid communication with the flow channels, wherein the port openings are surrounded by port opening areas (13) for sealing against a corresponding port opening area of a neighbouring heat exchanger plate, wherein neighbouring heat exchanger plates are connected by brazing joints at said contact points (16), wherein the end plate (11) is provided with port openings (O1-O4) and flat areas (14) around the port openings in a common plane, wherein a plurality of ridges (R) of the heat exchanger plates, in an area overlapping any of said flat areas (14) of the end plate (11), are formed with an indentation (15), wherein said indentations (15) of a heat exchanger plate (12, 12a) adjacent the end plate (11) connect a flow channel, formed between the end plate and the adjacent heat exchanger plate (12, 12a), with a neighbouring flow channel to allow distribution of media between them. A brazing joint for connecting neighbouring heat exchanger plates is arranged between the port opening area (13) and at least one of said indentations (15).

A closure bar for a plate-fin heat exchanger core, the closure bar having a substantially rectangular main body portion defined by a first edge and a second edge and an end portion having a first end portion edge, and opposite second end portion edge and an end edge extending between the first end portion edge and the second end portion edge, wherein the first edge of the main body portion and the first end portion edge form a continuous substantially straight first closure bar edge and wherein the second end portion edge is spaced from the first end portion edge by a distance (d1) greater than the distance (d2) between the first edge and second edges of the main body portion, and wherein the second edge of the main body portion and the second end portion edge joined by a radius portion define a second edge of the closure bar.

A radiator core includes a head tube and a tube module mounted on the head tube. The head tube is provided with multiple tube slots having multiple first sides and multiple second sides. The tube module includes multiple first tubes and multiple second tubes mounted in the tube slots. Each of the first tubes is provided with a first connecting portion having an increased thickness and resting on one of the first sides of the tube slots. Each of the second tubes is provided with a second connecting portion having an increased thickness and resting on one of the second sides of the tube slots.

A flat heat exchanger tube is formed from a single metal strip and comprising two opposite spaced apart broad sides in a thickness direction of said tube and two opposite nose-forming narrow sides in a width direction of said tube. The strip has two longitudinal edges, the first longitudinal edge being contiguous to the first broad side and the second longitudinal edge being contiguous to the second broad side. The two longitudinal edges of the strip are joined together at a first one of the narrow sides, both longitudinal edges being convex-shaped so that the first edge forms an outer convex bend and the second edge forms an inner convex bend that fits in the outer convex bend and conforms to its internal curvature.

An internal structure of vapor chamber is provided. A first plate has an inner surface. A periphery of the first plate has a sealing edge extending outwardly; a level difference exists between the first plate and the sealing edge. Multiple supporting protrusions are formed on the inner surface of the first plate. A second plate has an inner surface spaced apart from the inner surface of the first plate. The brazing structure has a sealing portion and connecting portions, the sealing portion is fixed between the second plate and the sealing edges of the first plate, and the connecting portions are respectively disposed between the corresponding supporting portions of the first plate and of the second plate. The sealing portion is disposed around a periphery of the second plate to align and contact with the sealing edge.

A slim vapor chamber includes a first plate, a second plate and a capillary structure. The periphery of the second plate is connected with that of the first plate to form a chamber. The capillary structure is disposed on an inner wall of the chamber. Both of a side of the first plate facing the second plate and a side of the second plate facing the first plate are formed with a plurality of supporting structures, which include a plurality of supporting pillars and a plurality of supporting plates, by an etching process.

An additively manufactured heat exchanger configured to transfer heat between a first fluid and a second fluid includes a first channel with a first wall configured to port flow of a first fluid and a second channel with a second wall configured to port flow of a second fluid. The heat exchanger also includes a barrier channel containing unprocessed build powder provided by the additive manufacturing process and is located between the first wall and the second wall. The barrier channel is configured to prevent mixing of the first fluid and the second fluid when one of the first wall and the second wall ruptures.

A temperature plate device includes a plate body and a bent structure. The plate body includes a first plate and a second plate. A chamber is defined by the first plate and the second plate. The first plate has a first step section. The second plate has a second step section corresponding to the first step section. The bent structure is connected to and traverses the first step section between the first step section and the second step section.

An evaporator comprises: a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes that are contained in the housing, in which chilled water for heat exchange with refrigerant inside the housing flows; at least one distribution tray that is placed apart from the heat transfer tubes and has a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; a vapor-liquid separator that is placed apart from the bottom of the distribution tray and separates an introduced refrigerant into a vapor refrigerant and a liquid refrigerant; and a pair of support frames that are fixed to either side of the width direction of the housing, wherein the vapor-liquid separator comprises: a chamber that has an inlet port communicating with the refrigerant inlet, a vapor refrigerant exit communicating with the refrigerant outlet, and a plurality of holes formed in the bottom to distribute the liquid refrigerant to the distribution tray; and a plurality of side arms that are formed on either side of the chamber and arranged in the length direction of the chamber and supported by the support frames. Through the present disclosure, it is possible to keep the vapor-liquid separator horizontal and stable and achieve stable heat exchange performance.

A heat exchange tube and a heat exchanger are provided. A tube wall of the heat exchange tube includes a first wall and a second wall, a first segment of the first wall includes one of a first groove or a first protrusion, a second segment of the first wall includes one of a second groove or a second protrusion, a first segment of the second wall includes the other one of the first groove or the first protrusion, the first protrusion is arranged in the first groove, the second segment of the second wall includes the other one of the second groove or the second protrusion, and the second protrusion is arranged in the second groove. At least part of each of the first segment and the second segment of the first wall is arranged between the first segment and the second segment of the second wall.