According to the present invention, a heat exchanger comprises a plurality of coolant tubes; a plurality of fins contacting the plurality of coolant tubes, wherein each of the plurality of fins comprises: a plurality of fin parts spaced apart from each other; an upper fin part connecting part connecting respective upper portions of the plurality of fin parts with each other, the upper fin part connecting part contacting one of the plurality of coolant tubes; a lower fin part connecting part connecting respective lower portions of the plurality of fin parts with each other, the lower fin part connecting part contacting another one of the plurality of coolant tubes; an upper opening formed at an upper portion of each of the plurality of fin parts; a lower opening formed at a lower portion of each of the plurality of fin parts; an upper protrusion protruded from an upper portion of each of the plurality of fin parts, the upper protrusion contacting the first coolant tube; and a lower protrusion protruded from a lower portion of each of the plurality of fin parts, the lower protrusion contacting the second coolant tube. Accordingly, the present invention provides increased productivity without the need of a separate pipe expanding process.

A heat pipe fixing structure includes a heat pipe, a carrier body and a first fixing member. The heat pipe has a main body having a first side and a second side. The carrier body has a channel having an open side and a closed side. The heat pipe is disposed in the channel with the first and second sides respectively corresponding to the open side and the closed side. The first fixing member is disposed on upper side of the heat pipe and upper side of the carrier body. A free end of the first fixing member is in corresponding contact with the first side of the heat pipe to press and abut against or engage with the heat pipe. The heat pipe fixing structure serves to firmly fix the heat pipe to eliminate the shortcomings existing in the conventional welding process for fixing the heat pipe.

The present invention relates to a heat exchanger (20) comprising a protective device (1), mutually parallel tubes (22) through which a first fluid circulates, and perpendicular fins (26) connecting two successive flat tubes (22), a second fluid circulating between said flat tubes (22) by passing through said fins (26), said protective device (1) being apertured so as to allow the circulation of the second fluid through the fins (26), said protective device (1) comprising fixing spikes (7) which are inserted forcibly between the fins (26).

An arrangement for a tempering device may include a component including an opening. The arrangement may also include a tubular body through which a fluid is flowable. The tubular body may include a connecting section that may be arranged in and held by the opening of the component. At least one of the tubular body and the component may also include a plastic layer, more specifically a plastic coating, for sealing the opening.

Apparatuses and methods associated with heat exchanger puck design are disclosed herein. In embodiments, a heat exchanger puck may include a first plate with a cavity that extends into the first plate from a side of the first plate and a second plate. The second plate may be coupled to the side of the first plate, with the cavity located between the first plate and the second plate. The heat exchanger puck may further include a tube of a liquid coolant system located, at least partially, within the cavity, the tube formed to fit the cavity created by the first plate and the second plate. Other embodiments may be described and/or claimed.

With respect to a header plateless heat exchanger having as a component a flat tube formed by joining a pair of grooved plates together, air-tightness and liquid-tightness are improved between the portion of the flat tube where the plates are joined together and a header tank. A flat tube is formed by folding tab parts extending from side walls of a first plate back outwards to lie over the outer surfaces of those side walls of the first plate, and placing seating portions of side walls of a second plate on the upper end surfaces of the tab parts, after which a header tank is fitted on each longitudinal end of the flat tube.

A heat dissipation unit manufacturing method is disclosed. The heat dissipation unit includes a heat pipe and a base seat. The base seat has a first side and a second side. The second side is formed with a channel and multiple perforations in communication with the first and second sides. The heat pipe has a heat absorption section and a conduction section. The conduction section extends from the heat absorption section in a direction to at least one end of the heat pipe distal from the heat absorption section. Several parts of the heat pipe corresponding to the perforations are received in the perforations and flush with the first side of the base seat. The heat dissipation unit manufacturing method improves the shortcoming of the conventional heat dissipation component that the coplanar precision between the heat pipe and the protruding platform of the base seat is hard to control.

A fixing structure for heat dissipation element includes a base plate, a heat transfer element, and at least one fixing member. The base plate has a top surface, on which a receiving recess is defined for receiving the heat transfer element therein. At least one clearance is defined between the receiving recess and the heat transfer element. The fixing member has a fixing portion and an extended portion. The fixing portion is connected to the top surface of the base plate, whereas the extended portion is bent and inserted into the clearance to locate between the receiving recess and the heat transfer element, such that the heat transfer element is firmly held in the receiving recess of the base plate.

The invention relates to a method for producing an assembly (1), in particular a power electronics unit, comprising the following steps: providing a component (2) to be cooled having a first surface (4), providing a cooling device (3) having a second surface (5) opposite the first surface (4), arranging a 3-dimensional heat transfer plate (6) between the two surfaces (4, 5), wherein the heat transfer plate (6) extends in a plate plane (11) parallel to the two surfaces (4, 5) and in the initial state a plurality of contact extensions (9) which extend outwards with respect to said plate plane (11), and bracing the component (2) and the cooling device (3) relative to one another, such that the contact extensions (9) are deformed in the direction of the metal sheet.