Locking device for heat dissipating device
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsChun-Chi Chen, Shi-Wen Zhou, Hsieh-Kun Lee
Life of this patent
Estimating the term…
Abstract
A locking device for mounting a heat sink to a CPU mounted on a printed circuit board, includes a back plate mounted below the circuit board and having a plurality of fasteners extending upwardly beyond the circuit board, and a plurality of retainers. Each retainer includes an operating member resting on a heat sink, a locking member extending through the operating member, and a pushing member extending through the locking member. The locking member includes a locking structure extending through the heat sink to engage with one of the fasteners. The pushing member includes a taper bottom portion. The pushing member is downward movable to cause the taper bottom portion to disengage the locking structure from the one of the fasteners.
Claims18
A retainer for mounting a heat sink about which fasteners are provided, comprising:
- an operating member adapted for resting on the heat sink;
- a locking member extending through the operating member and having a locking structure adapted for engaging with one of the fasteners;
- a pushing member extending through the locking member;
- and
- an actuating structure formed between the operating member and the locking member;
- wherein
- the operating member is rotatable in a circumferential direction to cause the actuating structure to drive the operating member to move toward the heat sink in an axial direction and the pushing member is downward movable to disengage the locking structure from said one of the fasteners.
A combination comprising:
- a circuit board with an electronic component mounted thereon;
- a heat sink placed on the electronic component;
- and
- a locking device for mounting the heat sink on the electronic component, the locking device comprising:
- a back plate mounted below the circuit board and comprising a plurality of fasteners extending upwardly beyond the circuit board;
- and
- a plurality of retainers each comprising an operating member resting on the heat sink, a locking member extending through the operating member and having a locking means extending through the heat sink to engage with one of the fasteners, and a pushing member extending through the locking member and comprising a pushing means;
- wherein the pushing member is downward movable to cause the pushing means to disengage the locking means from said one of the fasteners.
A combination comprising:
- a circuit board with an electronic component mounted thereon;
- a heat sink placed on the electronic component;
- and
- a locking device for mounting the heat sink on the electronic component, the locking device comprising:
- a back plate mounted below the circuit board and comprising a plurality of fasteners extending upwardly beyond the circuit board;
- and
- a plurality of retainers each comprising an operating member located above the heat sink, a locking member extending through the operating member and having a locking means extending through the heat sink to engage with one of the fasteners, a pushing member extending through the locking member, and an actuating structure formed between the operating member and the locking member;
- wherein the operating member is rotatable in a circumferential direction to cause the actuating structure to drive the operating member to move toward the heat sink in an axial direction.
Dependencies are inferred from the claim text.