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US 10,257,961 B2Granted
Fixation of heat sink on SFP/XFP cage
AssigneeCoriant Operations, Inc.
InventorsZhen Lei, Qinzhen Ba, Zongxian Duan, HuiHui Yu
Life of this patent
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Abstract
An apparatus and system for a heat sink assembly, and a procedure for forming a heat sink assembly. The heat sink assembly includes a heat sink having a base and fins extending from the base, and a spring clip disposed on the heat sink between the fins. The spring clip includes a first tab that forms a first angle with respect to the base of the heat sink and including a second tab that forms a second angle with respect to the base of the heat sink. The first and second tabs are attached to the circuit board. By virtue thereof, a heat sink attachment to cage is provided that is space-efficient and permits a higher density of cages on a circuit board than do conventional arrangements.
Claims20
A spring clip comprising:
- a first tab;
- a second tab;
- and
- a serpentine portion interposed between the first tab and the second tab,
- wherein the first tab forms a first angle with respect to abase of a heat sink, the second tab forms a second angle with respect to the base of the heat sink, and the serpentine portion extends in its entirety in a plane that is substantially parallel to an upper surface of the base of the heat sink, and
- wherein the first tab and the second tab are capable of being respectively compressed in a direction toward the base of the heat sink, and wherein the serpentine portion does not form a circle.
3 more elements
A spring clip comprising:
- a first tab;
- a second tab;
- and
- a serpentine portion interposed between the first tab and the second tab,
- wherein the first tab forms a first angle with respect to abase of a heat sink, the second tab forms a second angle with respect to the base of the heat sink, and the serpentine portion extends in its entirety in a plane that is substantially parallel to an upper surface of the base of the heat sink,
- wherein the first tab and the second tab are capable of being respectively compressed in a direction toward the base of the heat sink,
- wherein the heat sink has the base, fins extending from the upper surface of the base, and a raised portion extending from a lower side of the base that is opposite from the upper surface, and
- wherein the heat sink has a retention slot formed between at least some of the fins, and the retention slot is constructed to receive at least a portion of a cover fixed to a circuit board.
5 more elements
A spring clip comprising:
- a first tab;
- a second tab;
- and
- a serpentine portion interposed between the first tab and the second tab, wherein the spring clip is disposable on a base of a heat sink between fins extending from an upper surface of the base of the heat sink, and the serpentine portion does not form a circle,
- wherein the first tab forms a first angle with respect to the upper surface of the base of the heat sink, the second tab forms a second angle with respect to the upper surface of the base of the heat sink, and the serpentine portion extends in its entirety in a plane that is substantially parallel to the upper surface of the base of the heat sink,
- the first tab and the second tab are capable of being respectively compressed in a direction toward the base of the heat sink, and
- the spring clip and the heat sink form a heat sink assembly mountable on at least one cage of a circuit board, each cage having an upper surface formed with an opening therethrough.
4 more elements
A spring clip comprising:
- a first tab;
- a second tab;
- and
- a serpentine portion interposed between the first tab and the second tab, wherein the spring clip is disposable on a base of a heat sink between fins extending from an upper surface of the base of the heat sink,
- wherein the first tab forms a first angle with respect to the upper surface of the base of the heat sink, the second tab forms a second angle with respect to the upper surface of the base of the heat sink, and the serpentine portion extends in its entirety in a plane that is substantially parallel to the upper surface of the base of the heat sink,
- the first tab and the second tab are capable of being respectively compressed in a direction toward the base of the heat sink,
- the spring clip and the heat sink form a heat sink assembly mountable on at least one cage of a circuit board, each cage having an upper surface formed with an opening therethrough, and
- wherein a wall of a cover is inserted in a retention slot formed between at least some of the fins of the heat sink to limit movement of the heat sink with respect to the at least one cage.
5 more elements
A heat sink comprising:
- a base;
- and
- fins extending from an upper surface of the base;
- wherein a spring clip is disposed on the heat sink between the fins, the spring clip including a first tab, a second tab, and a serpentine portion interposed between the first tab and the second tab, wherein the serpentine portion does not form a circle,
- wherein the first tab forms a first angle with respect to the upper surface of the base of the heat sink, the second tab forms a second angle with respect to the upper surface of the base of the heat sink, and the serpentine portion extends in its entirety in a plane that is substantially parallel to the upper surface of the base of the heat sink,
- the first tab and the second tab are capable of being respectively compressed in a direction toward the base of the heat sink, and
- the spring clip and the heat sink form a heat sink assembly mountable on at least one cage of a circuit board, each cage having an upper surface formed with an opening therethrough.
4 more elements
Dependencies are inferred from the claim text.