Hitachi, Ltd.

Other

Michihito Watarai

Mitsuo Miyamoto

Yutaka Hayashi

Tetsuya Tanaka

Takahiro Daikoku

Toshio Hatada

Takashi Yamamoto

Toshiyuki Utsuki

Yoshihiro Takada

Kenta Kumagai

Takayuki Atarashi

Shigeyasu Tsubaki

Takashi Ohwada

Fumio Kishida

Sayuri Hashizume

Takashi Hamaguchi

Akihiro Sakurai

Kazuhiro Matsuo

Koji Nakayama

Eiji Kadomoto

Kazuo Fukui

A fan device mounting structure is provided, which is capable of sufficiently suppressing transmission of vibrations in X, Y, and Z directions generated from a fan device, that is, all translational-direction vibrations and all axial-rotation-direction vibrations, to a chassis in which the fan device is mounted. The fan device mounting structure includes: a fan device; a chassisin which the fan deviceis mounted; and at least a pair of flat springs, each of which has its one end attached to the fan deviceand extending outwards from the fan deviceand bending and has the other end attached to outside a fan device located area, wherein both opposite faces of the fan devicefacing each other are supported by the respective flat springsand attached to the chassisat positions separate from each other.

Fan device attachment structure

A mechanism for locking boards with various components mounted on them onto the chassis of an electronic device is composed of brackets, which are attached to these boards and which are to be mounted onto the chassis at a series of fixation points provided at certain intervals on it, and a locking element having a number of tongue-shaped pieces. Locking is accomplished by inserting each of these tongue-shaped pieces between a pair of adjacent brackets so that it engages with them. This mechanism requires fewer components than conventional mechanisms and is also easier to operate.

Mechanism for locking a board onto a chassis

An electronic device has a frame and a back board having plural logical units and power supply units mounted thereon. The logical units and the power supply units are alternately located on both sides of the back board in the center of the frame so that the power supply units mounted on one side of the back board may feed a power to the closest logical units mounted on the other side. Further, the air flow paths to be circulated through the logical units and the power supply units are formed so that each unit may be efficiently cooled by the air fed by an air fan unit. As a result, the feeding voltage becomes uniform and the cooling efficiency is improved.

Mounting structure for electronic device

Computer housing

A forced air cooling apparatus having a blower for blowing air taken in from an intake surface or inlet of the blower to be blown against an electronic device in an installation wherein the blower is mounted for operation on a casing or a rack, and in which the apparatus has a flow regulating plate vertically intersecting the intake surface that is installed immediately before the intake surface. With this construction, eddy air current flow in the vicinity of the intake surface is prevented and the cooling ability obtained from the blower is optimized to thereby attain the effect that the electronic devices can be efficiently cooled without requiring the same separation distance between an intake surface of the blower and a wall surface of the frame or casing in which the blower is installed, as compared with a conventional installation of the same equipment in the same casing without the flow regulating plate.

Forced air cooling apparatus having blower and air current regulating

Growing community of inventors

Tokyo, Japan

Michihito Watarai