Heat sink and method of manufacturing the same
AssigneesFu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
InventorsPeng Liu, Guo Chen, Shi-Wen Zhou, Chun-Chi Chen
Life of this patent
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Abstract
A heat sink includes a base with a plurality of recesses defined therein, a plurality of columned fins each having a head and a body extending from the head, and a cover joining with the base. Each head is received in and higher than a corresponding recess of the base. The heads are sandwiched between the cover and the base, whereby the columned fins are secured on the base. A portion of the cover contacting the head of each of the columned fins protrudes to form a deformed part. A method of manufacturing the heat sink is also disclosed.
Claims12
A heat sink comprising:
- a base with a plurality of recesses defined therein;
- a plurality of columned fins each having a head and a body extending from the head, the head being received in and higher than a corresponding recess of the base so that a portion of the head extending beyond the corresponding recess;
- and
- a cover jointing with the base and cooperating with the base to sandwich the heads of the columned fins therebetween to thereby secure the columned fins to the base, the cover having a portion thereof which contacts the head of each of the columned fins and forms a deformed part;
- wherein the recesses are defined at a bottom of the base, and a plurality of passages defined in a top of the base to communicate with the recesses and allow the bodies of the columned fins to penetrate therethrough, and wherein the cover covers on the bottom of the base, a portion of the cover which contacts a bottom end of the head of each of the columned fins protruding downwardly to form the deformed part;
- and
- wherein the deformed part is machined to be even with other parts of the cover.
A method of manufacturing a heat sink, comprising:
- providing a plurality of columned fins each having a head and a body extending from the head;
- providing a base defining a plurality of recesses therein for receiving the heads of the columned fins, the heads being higher than the recesses;
- providing a cover;
- pressing the cover toward the base to sandwich the heads of the columned fins therebetween, wherein a portion of the cover which contacts the head of each of the columned fins forms a deformed part during the pressing.
Dependencies are inferred from the claim text.