The present embodiment relates to a DC-DC converter comprising: a housing; a plurality of electronic components disposed inside the housing; and a flow path disposed on a lower plate of the housing. The flow path comprises an expanding portion. The horizontal width of the expanding portion is greater than the horizontal width of a flow path on the front end of the expanding portion, and the vertical width of the expanding portion is less than the vertical width of the flow path on the front end of the expanding portion. The differential between the part wherein the surface area of the vertical cross section of the flow path is the biggest and the part wherein the surface area of the vertical cross section of the flow path is the smallest is 10% or less.

A motor controller, including: a box body, a capacitor module, and an inverse module. The box body includes a chamber, and a radiator is disposed in the chamber. The radiator divides the chamber to yield a first chamber and a second chamber. The inverse module is disposed on an upper surface of the radiator in the first chamber. The capacitor module is disposed on a lower surface of the radiator in the second chamber. The radiator includes a cooling waterway, and a water inlet and a water outlet that communicate with the cooling waterway. The cooling waterway is adapted to cool the capacitor module and the inverse module.

An electronic module is provided with a housing with a base and walls extending transversely from the base. The housing comprises an inlet port and an outlet port formed through the walls. A circuit board assembly is supported by the housing and includes electronics that generate heat during operation. A cold plate is mounted to the walls of the housing to define a manifold. The housing and the cold plate are in thermal communication with the circuit board assembly for transferring heat generated by the electronics. A baffle is disposed within the manifold for directing coolant flow. Elastic material is disposed over a distal end of the baffle and adapted to engage a lower surface of the cold plate in an interference fit to block coolant leakage.

The invention relates to a cooling module for a vehicle control unit, comprising a cooling element, connections for conducting a coolant through the cooling element, a turbulence insert placed in the cooling element comprising at least first cooling fins, and at least one first bimetal located in the cooling element, wherein the at least one first bimetal is placed such that it displaces the at least one group of first cooling fins depending on a temperature-dependent shape change of the at least one first bimetal. The invention also relates to a vehicle control unit with a cooling module and a method for water cooling a vehicle control unit.

A cooling device for cooling a plurality of electronic components mounted on a circuit board. The device includes a contact sheet shaped for conforming to the plurality of electronic components and comprising a mating face for mating against the plurality of electronic components and a cooled face. An enclosure is mounted to the cooled face and defines a coolant transport circuit for circulating coolant liquid there thorough. A coupling may be provided for biassing the mating face toward the plurality of electronic components.

An installation structure and an installation method of a plug-in switch tube is disclosed in the present invention, the installation structure comprises, a PCB board, a plug-in switch tube fixed on said PCB board, and a housing matching said PCB board and said plug-in switch tube, wherein the lower end surface of said housing is provided with a cooling liquid flow channel, and said plug-in switch tube is pressed against the side wall of the cooling liquid flow channel by an elastic pressing-piece. The installation structure according to the present invention has the advantages of small volume, excellent heat dissipation effect, simple assembly, low cost and light weight.

A cooling unit includes a structure in which a box body made of resin and a plate lid made of metal are bonded together, in which at least one of an upper surface and a lower surface of the box body has an opening and the plate lid is bonded with the box body so as to block the opening, a wall surface of the box body is provided with a refrigerant inlet and a refrigerant outlet for allowing a refrigerant to flow in the box body, a flow path-forming rib is provided in the box body, and a part or an entirety of the box body is formed of a fiber-reinforced resin and/or a resin containing an inorganic particle filler.

A cooling unit for dissipating the heat generated by electronic components (40) of an electrical assembly (1) is disclosed. The cooling unit has a first portion (20) and a second portion (30), each of which form a hollow part, of substantially parallelepipedal shape. The first and second portions meet at a joining zone (51) of the cooling unit, the first and second portions each comprising a first external surface that is turned towards the other portion, and said first external surfaces each comprising a receiving zone intended to receive one or more of said electronic components (40). At least one of said portions comprises a connection opening configured to be connected to another part of said cooling module (10) that is separate from said cooling unit. The cooling unit also comprises at least one orifice (55) formed in one of the portions.

A heat exchanger includes a fluid flow passage with a wavy fin turbulizer. The turbulizer includes sidewalls extending lengthwise along a fluid flow direction between its first and second ends, and the sidewalls are spaced apart across the width of the turbulizer. Each flow channel of the turbulizer is defined between two adjacent sidewalls. Each sidewall has a smoothly and continuously curved profile with repeating wave forms being defined along the length of the turbulizer. The continuously curved profile of the sidewalls is defined by a non-circular shape, such as elliptical, sinusoidal, parabolic and hyperbolic shapes. The radius of curvature changes constantly and reaches a maximum at or near the inflection point between adjacent crests and troughs of the profile, to provide improved particle pass-through, lower pressure drop, and enhanced plateability of internal surfaces.

A power electronics unit for an electric motor of a motor vehicle drive, having a plate-like cooling element, at least one semiconductor module and a module holder which consists of plastic and secures the at least one semiconductor module relative to the cooling element. The module holder is fixed to the cooling element via an interlocking snap connection.