Diamond Electric Mfg. Co., Ltd.

Diamond Electroic Mfg. Co. Ltd.

Diamond Electric Mft.

Yoshio Ishida

Akimi Shutou

Takashi Doi

Takao Terasaka

A first series circuit having an energy storage coila first diodeand a capacitorconnected between a direct current power supply E and a ground terminal GND is arranged. A second series circuit of a switching elementand an ignition coilis connected to both ends of the capacitorThe switching elementof the ignition device configured as above is controlled so as to perform a plurality of ON/OFF operations in time of the ignition operation of the ignition plugconnected to the secondary side of the ignition coilAs a result, the capacitive discharge and the inductive discharge are alternately repeated at the ignition plugAccording to the present invention, a multiple discharge type ignition device in which the number of components is reduced, and the power consumption is suppressed is realized.

Ignition device

A heat pipe comprising a flat container, and a member selected from a rod, a plate and a mesh, the member being fixedly arranged between narrow walls of the container so that space is provided in the inner circumference of the container both in the direction of width and length of the container.

Heat pipe and method for processing the same

A cooling module is disclosed which comprises a plate, a flat heat pipe, a directional motor, and a fin structure, wherein at least a part of the heat pipe is embedded into the plate while being flush with plate, and the heat pipe is disposed close to a heat generating object and a coupling portion of the fin structure.

Cooling module

The present invention is to provide a heat sink used for a portable information processing apparatus, the casing of which has a recess in which an exchangeable arithmetic processor is accommodated. There is provided a heat receiving plate closely coming into contact with the arithmetic processor. The heat receiving plate includes a round hole portion arranged at one end. A heat pipe is inserted into the round hole portion. A fixing member is attached to the heat receiving plate at an outlet portion of the heat pipe arranged in the round hole portion. The heat receiving plate is fixed to the casing through the fixing member so that a hinge mechanism can be formed by the heat receiving plate and the heat pipe which is used as a fulcrum. At least a portion of the heat pipe is thermally connected with a radiating member.

Movably mounted heat receiving plate

A heat radiating apparatus includes a metal pipe attached to at least one side of a metal plate, a heat pipe inserted into an internal hollow of the metal pipe, the hollow being filled with grease having high thermal conductivity, a sleeve seal provided at least one longitudinal end of the metal pipe for sealing the grease in such a way as to permit the heat pipe to freely rotate, and a heat receiving section through which a part of the heat pipe is in contact with a heating body.

Heat radiating apparatus

A heat sink is provided wherein a heat receiving plate and at least one piece of heat radiating fin are stacked in the heat sink, and an interval between the heat receiving plate and fin is maintained by a number of bosses geometrically disposed on the heat radiating fin. The bottom of each boss is soldered onto the adjacent heat receiving plate or heat radiating fin. The heat sink therefore is provided with a plurality of conductive contacts between said fins and said heat receiving plate in the radial or transverse direction.

Heat sink

A heat sink comprising a heat receiving plate and at least one piece of heat radiating fin stacked on the heat receiving plate, wherein slits which penetrate the heat radiating fin from the upper to lower surface are formed on a flat plate surface of the heat radiating fin, and a plurality of fin protrusions are provided in a portion on the flat plate surface where the slits are not formed, and all the fin protrusions or a portion of the fin protrusions of the stacked heat radiating fin are disposed at different positions on the heat radiating fin so that an interval between the heat receiving plate and heat radiating fin, or an interval between the stacked heat radiating fins is maintained by the fin protrusions.

Growing community of inventors

Osaka, Japan

Yoshio Ishida