A cooling device includes: a case that includes a supply port for supplying coolant to an interior of the case and a discharge port for discharging coolant at the interior of the case to an exterior of the case; fins that each have a plate shape, that are arrayed at the interior of the case at separations along a plate thickness direction, and that have coolant flowing between adjacent fins; a maintenance portion that is formed at the fins and that maintains a separation between the adjacent fins; and a restraint portion that is formed at the fins and that restrains relative movement of the adjacent fins being maintained at the separation by the maintenance portion.

A heat exchanger assembly includes a first heat exchange fluid conduit and at least one fin. The first heat exchange fluid conduit defines a passageway therethrough and is configured to receive a flow of a first heat exchange fluid. At least one fin is disposed to receive a flow of a second heat exchange fluid. The fin(s) is/are coupled to the heat exchange fluid conduit at an interface that is configured to reduce accumulation of debris entrained in the second heat exchange fluid.

A cooler includes a cooling pipe having a cooling surface in contact with a heat-exchanged component, and a refrigerant passage. A pair of outer passages are formed between a pair of opposed inner wall surfaces which are located at both ends of an inner wall surface of the cooling pipe in a perpendicular direction and which constitute the refrigerant passage, and a pair of partition walls that are located at both ends of an inner fin in the perpendicular direction. At least one flow-regulating rib is formed in the refrigerant passage to project into the refrigerant passage at a position inward of the pair of outer passages in the perpendicular direction and at a position outward of an inflow hole and a discharge hole in the perpendicular direction as well as at a position outward of the inner fin in an arrangement direction and at a position inward of the inflow hole and the discharge hole in the arrangement direction. The flow-regulating rib is configured to restrict flow rates of refrigerant through the pair of outer passages.

A riveting structure for a thin heat sink fin and a thin cover plate is disclosed. The riveting structure includes a plurality of thin heat sink fins and a thin cover plate. The top of each thin heat sink fin is provided with a raised portion, the thin cover plate is formed with a plurality of cover plate riveting holes, and the raised portion is pressed and deformed by a rolling device in a rolling manner to fill the space of a corresponding one of the cover plate riveting holes, thereby fixing the raised portion. It is suitable for a “thin” design, improves the assembly efficiency greatly, reduces the labor cost, and reduces the product defect rate effectively.

A riveting structure for a thin heat sink fin and a thin cover plate is disclosed. The riveting structure includes a plurality of thin heat sink fins and a thin cover plate. The top of each thin heat sink fin is provided with a raised portion, the thin cover plate is formed with a plurality of cover plate riveting holes, and the raised portion is pressed and deformed by a rolling device in a rolling manner to fill the space of a corresponding one of the cover plate riveting holes, thereby fixing the raised portion. It is suitable for a “thin” design, improves the assembly efficiency greatly, reduces the labor cost, and reduces the product defect rate effectively.

A heat dissipation unit and a heat dissipation device using same are disclosed. The heat dissipation device includes a base and one or more heat dissipation units. The base has a first side and an opposite second side; and the heat dissipation units respectively include at least one radiation fin correspondingly provided on the first side of the base. The radiation fin is formed by correspondingly closing a first plate member and a second plate member to each other, such that a plurality of independent flow channels is defined between the closed first and second plate member. And, the independent flow channels respectively have an amount of working fluid filled therein.

A heat exchange plate which includes: a base board, where the base board includes a first edge along a first direction and a second edge along a second direction, and the first direction and the second direction are different directions; first flow guiders, where the first flow guiders are disposed on the base board, and are configured to guide flowing of air flows, where a plurality of the first flow guiders are arranged along the first direction at intervals into one column, and a plurality of columns of the first flow guiders are arranged along the second direction at intervals; and supporting structures, where the supporting structures are disposed on the base board, the supporting structures extend along the first direction, and the supporting structures and each column of the first flow guiders are arranged alternately along the second direction at intervals.

A heat exchange plate which includes: a base board, where the base board includes a first edge along a first direction and a second edge along a second direction, and the first direction and the second direction are different directions; first flow guiders, where the first flow guiders are disposed on the base board, and are configured to guide flowing of air flows, where a plurality of the first flow guiders are arranged along the first direction at intervals into one column, and a plurality of columns of the first flow guiders are arranged along the second direction at intervals; and supporting structures, where the supporting structures are disposed on the base board, the supporting structures extend along the first direction, and the supporting structures and each column of the first flow guiders are arranged alternately along the second direction at intervals.

A heat dissipation device is configured for a working fluid to flow therethrough. The heat dissipation device includes a base, at least one heat dissipation fin, and at least one fluid replenisher. The base has at least one internal channel configured for the working fluid to flow therethrough. The at least one heat dissipation fin having an extension channel and an inlet and an outlet is in fluid communication with the extension channel. The at least one heat dissipation fin is inserted into one side of the base, and the extension channel is communicated with the at least one internal channel through the inlet and the outlet. The at least one fluid replenisher is connected to at least one internal channel.

A heat sink structure includes a plurality of radiation fins and a base. Each of the radiation fins has a connecting end and a free end, and internally defines a chamber extended between the connecting end and the free end for filling a working fluid therein. The base has an upper connecting surface provided with a plurality of connecting sections and a lower heat receiving surface in contact with a heat source. The connecting ends of the radiation fins are integrally connected to the connecting sections of the base in one-to-one correspondence through overmolding, so as to eliminate thermal resistance between the radiation fins and the base.