The present disclosure provides a water-cooling heat dissipation device, including a liquid guide assembly, a heat exchanger, a heat sink, and a water-cooling pump. The liquid guide assembly includes a first liquid guide pipe, a second liquid guide pipe, and a third liquid guide pipe; two ends of the first liquid guide pipe respectively communicate with the heat exchanger and the heat sink; two ends of the second liquid guide pipe respectively communicate with the heat exchanger and the water-cooling pump; two ends of the third liquid guide pipe respectively communicate with the water-cooling pump and the heat sink; and the water-cooling pump is fixed on the liquid guide assembly.

A refrigerant distributor has a double-pipe structure including an inner pipe and an outer pipe. A plurality of outer pipes are disposed, each of the plurality of outer pipes being the outer pipe. A space is formed between adjacent ones of the plurality of outer pipes. The inner pipe is disposed to be continuous through the plurality of outer pipes. A plurality of heat-transfer tubes are arrayed in a direction in which the outer pipe extends and connected to the outer pipe. The refrigerant distributor distributes refrigerant flowing into between the inner pipe and the outer pipe to the plurality of heat-transfer tubes.

A heat exchanger has first and second manifold portions and an array of substantially-parallel heat-transfer tubes extending between the first and second manifold portions. Each heat-transfer tube has an outer surface and an inner surface defining a conduit. In a cross-sectional view, the outer surface of each heat-transfer tube can form a first shape that is non-circular, and the inner surface of heat-transfer tube can form a second shape different than the first shape. Alternatively or additionally, at least one of the first shape and the second shape lacks reflectional symmetry in the cross-sectional view. Methods for fabricating such heat exchangers are also provided.

There is provided a heat exchange assembly, a battery assembly and a battery heat exchange system. The heat exchange assembly includes a first fluid collecting portion, two or more main body portions, and a second fluid collecting portion. The first fluid collecting portion includes at least one cavity. The main body portions each include two or more fluid passages. The fluid passages each are in communication with the cavity. The first fluid collecting portion includes a first block portion and a first fluid collecting sub-portion that are fixed to each other. A first interface of the heat exchange assembly can be in communication with a first connection aperture of the first block portion, and the first interface of the heat exchange assembly can be in communication with the fluid passage.

A header for a header tank of a heat exchanger comprises a header wall defining a tube receiving portion having a plurality of longitudinally spaced tube openings formed therethrough. The tube receiving portion includes a planar portion and an adjacent offset portion. The planar portion is disposed on a first plane and the offset portion has a variable distance from the first plane as the offset portion extends away from the planar portion with respect to a longitudinal direction of the header.

A heat-exchanger including a device for separating oil from a coolant-oil mixture and cooling the oil and cooling and/or liquefying the coolant. The heat exchanger features a first area cooling and/or liquefying the coolant, and a second area cooling the oil. The heat exchanger further features at least two manifolds. The first area of the heat exchanger features flow channels guiding the coolant, and the second area of the heat exchanger features flow channels guiding the oil. The flow channels extend between the manifolds. Each of the flow channels has a respective outside flooded by a heat-absorbing fluid.

A heat exchanger for a refrigerator, which is of a microchannel type, includes a first heat exchange unit including a plurality of flat tubes, which serves to exchange heat between refrigerant and are connected to an introduction pipe, a second heat exchange unit including a plurality of flat tubes, which serve to exchange heat between the refrigerant and air and are disposed outside the first heat exchange unit so as to be connected to a discharge tube, and a connecting pipe connecting the first heat exchange unit to the second heat exchange unit to supply the refrigerant to the second heat exchange unit, wherein the first heat exchange unit is disposed so as to exchange heat with air, and wherein a total cross-sectional area of the flat tubes of the first heat exchange unit is larger than that of the flat tubes of the second heat exchange unit.

A heat exchanger includes a heat-absorbing part, two vapor conduits, a return conduit and a condensing part. The heat-absorbing part includes a vapor zone and a liquid zone. A first end of each vapor conduit is connected with the vapor zone of the heat-absorbing part. A first end of the return conduit is connected with the liquid zone of the heat-absorbing part. The condensing part includes a vapor-inputting chamber, a liquid-outputting chamber, a partition plate, a communication chamber, a first condenser tube group and a second condenser tube group. The vapor-inputting chamber is connected with a second end of each vapor conduit. The liquid-outputting chamber is connected with a second end of the return conduit. A loop is defined by the heat-absorbing part, the at least two vapor conduits, the return conduit and the condensing part collaboratively.

The present invention relates to an engine coolant cooling system for a vehicle, and provides an engine coolant cooling system for a vehicle, which can increase the heat-dissipation performance of a radiator if necessary without increasing the size of the radiator, securing the cooling performance of the coolant.

A heat exchanger includes a plurality of members made of aluminum or aluminum alloy, and a bundling component. The bundling component includes a main body portion having an anchoring portion, and a band portion extending from the main body portion and having a section on an opposite side of a main body portion side anchored in the anchoring portion. The bundling component is made of aluminum or aluminum alloy. At least part of the bundling component and at least part of the plurality of members are secured to each other with a brazing material interposed between the parts.