Redpoint Thermalloy Limited

Aavid Thermalloy, LLC

Francis Edward Fisher

Robin D Johnson

Michael D Wade

David G Gove

David W Gailus

William D Jordan

Julian Ralph Cavalot

A heat sink has a surface with a plurality of slots having mutually facing sidewalls which converge toward the base of the slot at an angle. Each slot receives an end portion of a cooling fin having sidewalls which converge at the same angle, so that the sidewalls of the slot are at least substantially parallel to the sidewalls of the cooling fin. The slots are preferably machined in the base and the sidewalls on the fins are machined or coined, yielding tolerances which are so close that the gap between parts is less than 60 microinches, and unfilled adhesive can be used. The thinness of the bond provides good thermal conductivity and reduced curing time. It is also possible to, provide the slots with a slightly smaller angle so that the base deforms to accommodate the cooling fin and adhesive may be eliminated.

Heat sink having bonded cooling fins

Heatsink devices are formed by attaching a plurality of fin members to a planar base member. A primary strip of thermally conducive material forms base members which are assembled with fin members formed from a secondary sheet of thermally conducting material. Each fin member is secured to a respective portion of the primary strip. The primary strip is advanced with the fin members secured thereto to be parted off to provide the heatsink devices. The synchronization of the forming of fins with the assembly reduces manual input to the manufacturing process, negates the need to hold stocks of preformed fins and increases design freedom with respect to dimensions of the heatsinks being formed.

Method and an apparatus for manufacturing heatsink devices

A process for forming a profiled element from a generally longitudinally extending extruded sheet-form member having a plurality of transversely spaced longitudinally extended ribs upstanding therefrom is provided. The process includes the step of removing longitudinally spaced apart portions from some of said ribs by means of a transversely acting punching means.

Apparatus for forming a profiled element

A process for forming a profiled element from a generally longitudinally extending extruded sheet-form member having a plurality of transversely spaced longitudinally extended ribs upstanding therefrom is provided. The process includes the step of removing longitudinally spaced apart portions from some of the ribs by means of a transversely acting punching means.

Heat sink

Process for forming a profiled element

A sheet metal device for mounting a component on a circuit board is formed by stamping to defining a head portion and a base portion. The head portion is formed for insertion into a slot in a component such as a heat sink and the base portion is formed for insertion into a printed circuit board. The head portion has spade-form members which engage the walls of the slot and retain the head portion in the slot. The component is mounted on a printed circuit board by inserting the base portion into an aperture in the printed circuit board and soldering the base portion to the reverse surface of the board.

Growing community of inventors

Swindon, United Kingdom

Francis Edward Fisher