Fujitsu Corporation

Fuji Furukawa Engineering & Construction Co., Ltd

Yoshihisa Iwakiri

Hideki Kimura

Shunichi Kikuchi

Naoaki Nakamura

Naoki Shinjo

Yoichi Sato

Akihiro Yasuo

Katsuhiko Nakata

Mitsuo Hayashi

Hitoshi Nori

Yoshihiro Kusano

Kengo Ueda

Tomoaki Haneda

Kenji Tosaka

Mika Tokumitsu

Kouji Kuroda

Takayoshi Matsumura

Hiroshi Onuki

A cooling plate that includes: a plate that is attached to a heat generating element; feed flow paths and return flow paths for coolant that are alternatingly arranged along a plate face of the plate; and a plurality of coolant flow paths that are formed in a plurality of levels within the plate closer to the heat generating element than the feed flow paths and the return flow paths, the plurality of coolant flow paths placing adjacent paths of the feed flow paths and the return flow paths in parallel communication through each of the levels.

Cooling plate and information processing device

A channel distribution type cooling plate where a space between a first coolant storage part for inflow of coolant and a second cooling storage part for outflow of coolant formed at the two ends of an upper space of a main body provided with a lower space for removing heat of a heat generating member is partitioned by a meandering type partition wall to form coolant distribution paths connected to the first coolant storage part and coolant collection paths connected to the second coolant storage part, the bottom of the coolant distribution paths and the coolant collection paths are communicated by a plurality of through holes with the lower space, and side surfaces of the partition wall at the coolant distribution path sides are formed with subchannels for running coolant from the first coolant storage part, in order to improve the cooling efficiency at the coolant outlet side.

Cooling plate and data processing system provided with cooling plates

To cool a blade type server disposed in an air-conditioned room, the following arrangements are made. The first is at least one shell having a ventilation passage disposed in the air-conditioned room. The second is, the following are disposed in a ventilation passage: racks, in which blade type servers each composed of a case with slim boards housed therein are stacked; cooling coils each having a coolant passage and a cooling fin and cooling a passing air; and at least one fan unit having axial-flow fans placed therein and producing air currents in one direction. The third is the fan unit forces a cooling air to flow in one direction in the ventilation passage thereby to cool the servers in the racks. The cooling coils and racks are disposed alternately so that warmed cooling air after passing through the rack is cooled by the cooling coil and then cools the next rack.

Cooling system for information device

A cooling device includes a chassis that partitions a first space, a second space, and a third space sandwiched between the first space and the second space, a printed circuit board accommodated in the chassis that extends from the first space to the second space while traversing the third space, a fan occupying the third space outside a predetermined space that produces an air flow from the first space toward the second space by rotation of a rotor blade, wherein the predetermined space is ensured between the printed circuit board and the fan in the third space and an air duct member that occupies the predetermined space to form a flow passage of the air flow from an intake port to an exhaust port on the printed circuit board, wherein the intake port is opened to the second space and the exhaust port is opened to the first space.

Cooling device for accommodated printed circuit board in a chassis

This invention relates to a package unit including a semiconductor package that houses a semiconductor chip, and a heat sink attached thereto. A peripheral wall section that surrounds a thermal junction member is provided on a stiffener. More preferably, a tip end section of the peripheral wall section is allowed to fit into a slit provided on the heat sink. The peripheral wall section may be provided on a heat spreader instead. It is possible to prevent the thermal junction member from falling outside without incurring addition of new components or new occupancy of the area on a system substrate.

Package unit

Growing community of inventors

Kawasaki, Japan

Yoshihisa Iwakiri