Hewlett-packard Company

Tim Schwegler

Juergen Haeberle

Siegfried Kopp

Johannes Mahn

Malte Schlueter

A chassis of a device, for example an electronic device, comprises a support unit made of plastic material which carries the components of the device, such as printed circuit boards, a data storage disk, a ventilator, and a loudspeaker. The components are held in place in corresponding recesses of the chassis by a form-locking connection with the plastic material. The components are carried by the chassis without requiring any fastening elements. For assembling the device, the components are inserted into the lower part of the chassis. Thereafter, the upper part is positioned on top of the lower part. The chassis can be enclosed in a metal enclosure. The chassis is preferably manufactured by a plastic molding process. Ventilation ducts can be provided in the plastic material to ensure cooling of the components.

Chassis of a device

An improved attachment method for attaching an heat sink to a integrated circuit package, which includes an heat spreader with a dove-tail feature attached to an upper surface of the integrated circuit package. The bottom surface of the heat sink has a dove-tail feature that matingly corresponds to the dove-tail feature of the heat spreader, such that the heat sink can be slide onto the heat spreader. The heat sink is prevented from sliding off of the heat spreader by a clip. A fan may be attached to the top surface of the heat sink using a clip that attaches to an outer edge of the heat sink or by making the outer two fins on the heat sink slightly taller than the fan with an inward dove-tail so that the fan can slide snugly between the top of the inner fins and the dove-tails of the outer two fins.

Method and apparatus for attaching a heat sink and a fan to an

A chassis of a device, for example an electronic device, includes a support unit made of plastic material which carries the components of the device, such as printed circuit boards, a data storage disk, a ventilator, and a loudspeaker. The components are held in place in corresponding recesses of the chassis by a form-locking connection with the plastic material. The components are carried by the chassis without requiring any fastening elements. For assembling the device, the components are inserted into the lower part of the chassis. Thereafter, the upper part is positioned on top of the lower part. The chassis can be enclosed in a metal enclosure. The chassis is preferably manufactured by a plastic molding process. Ventilation ducts can be provided in the plastic material to ensure cooling of the components.

A device casing includes at least two casing parts, which are held together by corner parts that are pushed over the corners of the casing parts. Locking elements are provided to connect the corner parts with the casing parts. The locking elements prevent the corner parts coming away from the casing once assembled.

Growing community of inventors

Pforzheim, Germany

Tim Schwegler