Heat sink with combined fins
AssigneesFu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
InventorsGen-Ping Deng, Yi-Qiang Wu
Life of this patent
Estimating the term…
Abstract
A heat sink (10) for removing heat from heat-generating devices includes a plurality of fins (12) interconnected together by a fastener (20) extending therethrough. Each fin comprises a main body (14) and a flange (16) bent from an edge of the body. The main body has a thickness and defines a through hole (141, 142, 143) therein. The fastener comprises a plurality of alternating bars (200) and positioned portions (212). Each positioned portion has a same thickness as the main body and is accommodated in the through hole. Each bar is sandwiched between two adjacent main bodies, for fixing the fins in position and preventing the fin from sliding along a length direction of the fastener. The bar has a width larger than a diameter of the through hole.
Claims16
A heat sink assembly comprising:
- a plurality of fins, each fin comprising a main body, the main body defining a through hole therein;
- an elongated fastener comprising a plurality of bars and positioned portions alternately arranged along a length direction of the fastener;
- wherein each of the positioned portions is accommodated in the through hole and integrally interconnected with the bar adjacent to the positioned portion, each of the bars is sandwiched by two adjacent main bodies for securing the fins in position and preventing the fins from sliding along the length direction of the fastener.
A method for assembling a heat sink, comprising steps of:
- a). preparing a plurality of fins each comprising a main body with a flange extending perpendicularly from the main body, a through hole defined in the main body;
- b). providing an elongated fastener extending through the through holes of the fins, the fastener being divided by the spaced main bodies into a plurality of alternating first portions and second portions, wherein each of the first portion is accommodated in the through hole, and each of the second portion is sandwiched by two adjacent main bodies;
- and
- c). flattening the second portions sandwiched by the two adjacent main bodies to form bars for fixing the fins in position and preventing the fins from sliding along a length direction of the fastener.
A fin combination for a heat sink for dissipating heat from an electronic component, comprising:
- a first fin;
- a second fin;
- and
- a pin extending through the first fin and second fin, wherein the pin has a first portion received in the first and second fins and a second portion outside the first and second fins, the second portion being flattened to have a width larger than a diameter of the first portion whereby the first and second fins are secured in position by the second portion.
Dependencies are inferred from the claim text.