Heat dissipation device
AssigneesFu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
InventorDong-Yun Li
Life of this patent
Estimating the term…
Abstract
A heat dissipation device includes a retention module (40) and a heat sink (10) both mounted on the printed circuit board (50). The retention module forms a pair of opposite fixture blocks (44) thereon. The heat sink received in the retention module has protective hollow sleeves (28) positioned corresponding to the blocks. Each sleeve has a supporting pad (286) therein. A pair of braces (32) each extend through the sleeve and comprise a baffle portion (321) located above the pad and a fastening portion (324) below a bottom end of the sleeve. A spring (33) is compressed between the baffle portion of the brace and the pad of each of the sleeves. The fastening portions of the braces securely fasten the blocks of the retention module after the first springs are stretched a distance with an upward movement of the braces.
Claims19
A heat dissipation device comprising:
- a retention module comprising a plurality of sidewalls having a pair of opposite lateral sidewalls, a heat-generating electronic component received in the retention module and surrounded by the sidewalls, a pair of opposite fixture blocks being formed on the opposite lateral sidewalls of the retention module;
- a heat sink attached on the heat-generating electronic component in the retention module;
- a holder mounted on the heat sink and having a pair of protective hollow sleeves at two opposite lateral sides of the holder, the hollow sleeves being positioned corresponding to the fixture blocks of the retention module, each of the sleeves having a supporting pad therein;
- and
- a pair of clips securing the heat sink to the retention module, each of the clips comprising a brace extending through each of the sleeves, the brace having a baffle portion located above the supporting pad of each of the sleeves and a fastening portion below a bottom end of each of the sleeves, a first spring compressed between the baffle portion of the brace and the pad of each of the sleeves;
- wherein the fastening portion of each of the clips securely fastens each of the fixture blocks of the retention module after the first spring is stretched a distance with an upward movement of the brace of each of the clips.
A combination used for mounting a heat sink on a printed circuit board, comprising:
- a holder mounted on a top of the heat sink;
- a protective hollow sleeve formed at a lateral side of the holder and having an inner surface and a supporting pad formed on the inner surface near a bottom end of the sleeve;
- a brace extending through the sleeve, the brace comprising a traverse baffle portion above the pad of the sleeve and a fastening portion below a bottom end of the sleeve;
- and
- a spring compressed between the baffle portion and the pad;
- wherein the fastening portion moves toward the bottom end of the sleeve after the spring is stretched a distance;
- wherein the brace forms a tab and the pad of the sleeve forms a bulge having an inclined surface engaging with tab.
An electronic combination comprising:
- a printed circuit board having a heat-generating electronic component and a retention module thereon, wherein the retention module surrounds the electronic component and comprises a fixture block;
- a heat sink mounted on the electronic component and thermally connecting therewith;
- a fan holder mounted on the heat sink, adapted for mounting a fan thereon, the fan holder comprising a sleeve with a through hole defined therein, a supporting pad at a bottom end thereof, and a bulge having an inclined surface near the supporting pad, the sleeve being located above the fixture block;
- and
- a clip comprising a supporting brace having a fastening portion below the supporting pad, a post in the through hole of the sleeve, a tab extending from the post, and a baffle portion above the post, a spring surrounding the post and between the baffled portion and the supporting pad, and an operating member pivotably connected to the sleeve and operably connecting with the brace, wherein when the operating member is pivoted to a first position, the spring is compressed, the tab engages a lower portion of the inclined surface of the bulge, and the fastening portion separates from the fixture block, and when the operating member is pivoted to a second position, the spring is stretched, the tab moves to engage an upper portion of the inclined surface of the bulge, and the fastening portion moves to fasten with the fixture block thereby pushing the heat sink downward toward the electronic component.
Dependencies are inferred from the claim text.