A plate heat exchanger includes a first plate sheet and a second plate sheet. A blocking member is disposed between a front surface of the second plate sheet and a back surface of the first plate sheet. The blocking member is located between a first corner hole and a second corner hole of the second plate sheet, and one end of the blocking member is located on a side portion of the second plate sheet. A first corner hole of the second plate sheet bypasses the other end of the blocking member to communicate with a second corner hole of the second plate sheet. In the plate heat exchanger, a blocking member is disposed between two plate sheets, accordingly fluid can be evenly distributed, and the plate heat exchanger has good heat exchange performance.

A vehicle power conversion device includes: a housing configured to accommodate an electronic component therein and having an opening; and a cooling device. The cooling device includes a base being a plate-shaped member and heat sinks attached to the base. The base has a groove with refrigerant enclosed. The base has a first main surface to which the electronic component is to be attached, and covers the opening by the first main surface facing an interior of the housing. The heat sinks are joined, at intervals, onto the second main surface of the base.

A vehicle power conversion device includes: a housing configured to accommodate an electronic component therein and having an opening; and a cooling device. The cooling device includes a base being a plate-shaped member and heat sinks attached to the base. The base has a groove with refrigerant enclosed. The base has a first main surface to which the electronic component is to be attached, and covers the opening by the first main surface facing an interior of the housing. The heat sinks are joined, at intervals, onto the second main surface of the base.

The present disclosure relates to a wick structure accommodated in a container of a heat pipe having plural foils and a structure holding portion for fixing the foils. The respective foils are held by the structure holding portion, whereby the foils are positions and arrange in parallel. The foil is connected to the other foils including the other adjacent foils via the structure holding portion.

A three-dimensional heat exchanger including first thermally conductive plate, second thermally conductive plate, a plurality of supporting structures, at least one thermally conductive structure, at least one capillary structure and at least one heat pipe. Second thermally conductive plate has at least one through hole. Second thermally conductive plate is attached to first thermally conductive plate so that liquid-tight chamber is formed between first and second thermally conductive plate. An end of each of supporting structures is connected to first thermally conductive plate. Another end of each of supporting structures is connected to second thermally conductive plate. Thermally conductive structure is connected to at least a part of supporting structures. Capillary structure is stacked on first thermally conductive plate, at least a part of supporting structures, and thermally conductive structure. Heat pipe is disposed through the through hole.

A three-dimensional heat exchanger including first thermally conductive plate, second thermally conductive plate, a plurality of supporting structures, at least one thermally conductive structure, at least one capillary structure and at least one heat pipe. Second thermally conductive plate has at least one through hole. Second thermally conductive plate is attached to first thermally conductive plate so that liquid-tight chamber is formed between first and second thermally conductive plate. An end of each of supporting structures is connected to first thermally conductive plate. Another end of each of supporting structures is connected to second thermally conductive plate. Thermally conductive structure is connected to at least a part of supporting structures. Capillary structure is stacked on first thermally conductive plate, at least a part of supporting structures, and thermally conductive structure. Heat pipe is disposed through the through hole.

A plate heat exchanger includes a plurality of first heat transfer plates, a plurality of first inner fins, a plurality of second heat transfer plates, and a plurality of second inner fins. A space is formed between each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates. The plate heat exchanger includes, in the space, a plurality of heat transfer components connecting each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates, the plurality of heat transfer components being interspersed between each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates. A recess-and-projection pitch section in each of the plurality of first inner fins includes first pitch sections and one or more of second pitch sections, a width of each of the second pitch sections being wider than a width of each of the first pitch sections. The plurality of heat transfer components are disposed in regions of the first pitch sections when the plurality of heat transfer components are projected in a direction in which the plurality of first heat transfer plates and the plurality of second heat transfer plates are stacked.

A plate heat exchanger includes a plurality of first heat transfer plates, a plurality of first inner fins, a plurality of second heat transfer plates, and a plurality of second inner fins. A space is formed between each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates. The plate heat exchanger includes, in the space, a plurality of heat transfer components connecting each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates, the plurality of heat transfer components being interspersed between each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates. A recess-and-projection pitch section in each of the plurality of first inner fins includes first pitch sections and one or more of second pitch sections, a width of each of the second pitch sections being wider than a width of each of the first pitch sections. The plurality of heat transfer components are disposed in regions of the first pitch sections when the plurality of heat transfer components are projected in a direction in which the plurality of first heat transfer plates and the plurality of second heat transfer plates are stacked.

A plate for a heat exchanger, intended to be arranged in a stack of plates, includes: —a main panel having a first edge and a second edge, opposite the first edge, and at least one first fin protruding from the main panel and capable of delimiting, with the main panel and an adjacent plate, a fluid flow path, wherein the first fin extends from the first edge of the main panel towards the second edge, without extending up to the second edge, so as to provide a first fluid passage between one end of the first fin and the second transverse edge where the fluid flow path forms a first baffle.

A plate for a heat exchanger, intended to be arranged in a stack of plates, includes: —a main panel having a first edge and a second edge, opposite the first edge, and at least one first fin protruding from the main panel and capable of delimiting, with the main panel and an adjacent plate, a fluid flow path, wherein the first fin extends from the first edge of the main panel towards the second edge, without extending up to the second edge, so as to provide a first fluid passage between one end of the first fin and the second transverse edge where the fluid flow path forms a first baffle.