US 7,520,313 B2
Locking device for heat sink
Cheng-Tien Lai, Guangdong (China); Zhi-Yong Zhou, Guangdong (China); and Jian Hu, Guangdong (China)
Assigned to Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Longhua Town, Bao'an District, Shenzhen, Guangdong Province (China); and Foxconn Technology Co., Ltd., Tu-Cheng, Taipei Hsien (Taiwan)
Filed on Mar. 16, 2006, as Appl. No. 11/308,332.
Prior Publication US 2007/0217158 A1, Sep. 20, 2007
Int. Cl. F28F 9/00 (2006.01); F28F 7/00 (2006.01); H05K 7/20 (2006.01)
U.S. Cl. 165—80.3  [165/80.2; 165/67] 7 Claims
OG exemplary drawing
 
1. A locking device for securing a heat sink to a heat-generating component comprising a pair of retainers, each retainer comprising:
a handle having a top wall and a pair of sidewalls extending perpendicularly from a pair of opposite side edges of the top wall, respectively, the sidewalls of the handle being provided with a pivot wherein the handle is pivotable around the pivot; and
a locking leg being made from a unitary sheet member, the locking leg having a first engaging means provided at a first end portion thereof, a second end portion of the locking leg being connected to the sidewalls of the handle by a hinge positioned on the sidewalls and spaced apart from said pivot;
wherein when the handle is brought to pivot about said pivot, the locking leg is driven to move in a direction to cause said first engaging means to engage with a second engaging means provided adjacent to said first engaging means;
wherein the locking leg includes a base plate and the first engaging means is provided at the base plate;
wherein a pair of side plates extends from a pair of opposite side edges of the base plate, respectively, each of the side plates being perpendicular to the base plate; and
wherein a holding tab extends from each of the side plates for holding the handle in a receiving space defined cooperatively by the base plate and side plates of the locking leg when the handle is located at a locked position.