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US 9,049,811 B2Granted
Circuit cooling
AssigneeBose Corporation
InventorBradford Kyle Subat
Life of this patent
Estimating the term…
Abstract
An apparatus (e.g., an audio amplifier) includes a housing cover configured to be fitted to a heat sink for enclosing a circuit board therebetween. The apparatus also includes a contact member formed separately from and mounted to the housing cover to cause electrical components on the circuit board to engage with the heat sink when the housing cover is fastened to the heat sink. The contact member includes first and second projections connected to each other and configured such that displacement of the first projection in a first direction causes a proportional displacement of the second projection in a second direction opposite the first direction.
Claims17
An apparatus comprising:
- a housing cover configured to be fitted to a heat sink for enclosing a circuit board therebetween;
- and
- a contact member formed separately from and mounted to the housing cover to cause electrical components on the circuit board to engage with the heat sink when the housing cover is fastened to the heat sink, the contact member comprising:
- first and second projections connected to each other and configured such that displacement of the first projection in a first direction causes a proportional displacement of the second projection in a second direction opposite the first direction;
- a base mounted to the housing cover;
- and
- first and second spring fingers connected together and connected to the base such that the first and second spring fingers pivot together relative to the base, the first spring finger defining the first projection and the second spring finger defining the second projection,
- wherein the first and second projections are configured to pivot about a pivot point such that displacement of the first projection in a first direction causes a proportional displacement of the second projection in a second direction opposite the first direction, and
- wherein the contact member includes a pair of wings connecting the base to the first and second spring fingers.
6 more elements
An apparatus comprising:
- a housing cover configured to be fitted to a heat sink for enclosing a circuit board therebetween;
- and
- a contact member formed separately from and mounted to the housing cover to cause electrical components on the circuit board to engage with the heat sink when the housing cover is fastened to the heat sink, the contact member comprising:
- first and second projections connected to each other and configured such that displacement of the first projection in a first direction causes a proportional displacement of the second projection in a second direction opposite the first direction;
- a base mounted to the housing cover;
- and
- first and second spring fingers connected together and connected to the base such that the first and second spring fingers pivot together relative to the base, the first spring finger defining the first projection and the second spring finger defining the second projection,
- wherein the first and second projections are configured to pivot about a pivot point such that displacement of the first projection in a first direction causes a proportional displacement of the second projection in a second direction opposite the first direction, and
- wherein distal ends of the first and second spring fingers contact an inner surface of the housing cover and slide along the inner surface as the first and second spring fingers are displaced towards the housing cover.
6 more elements
An apparatus comprising:
- a housing cover configured to be fitted to a heat sink for enclosing a circuit board therebetween;
- and
- a contact member formed separately from and mounted to the housing cover to cause electrical components on the circuit board to engage with the heat sink when the housing cover is fastened to the heat sink, the contact member comprising:
- first and second projections connected to each other and configured such that displacement of the first projection in a first direction causes a proportional displacement of the second projection in a second direction opposite the first direction,
- wherein the first and second projections are configured such that compression of the first projection causes a displacement of fluid, which, in turn, causes a proportional expansion of the second projection.
2 more elements
Dependencies are inferred from the claim text.