Air-cooled electronic equipment and device for cooling an electronic component

Patent metadata

Field	Value
Publication number	US-10201113-B2
Application number	US-201314425286-A
Country	US
Kind code	B2
Filing date	Sep 6, 2013
Priority date	Sep 6, 2012
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

The invention concerns a piece of electronic equipment comprising a card ( 2 ) provided with an electronic component ( 3 ), a radiator ( 5 ) having a bottom ( 6 ) topped by fins ( 7 ), the bottom of the radiator resting on the electronic component, and a cover ( 8 ) extending above the radiator providing an air flow around the fins of the radiator, the cover comprising a plurality of flexible blades ( 11 ), each applied to an upper edge of at least one of the fins to keep the radiator applied against the component, and the flexible blades ( 11 ) have a first end integral with the cover and a second free end applied against the upper edge of the fins. A cooling device with a radiator and a cover for holding the radiator in place.

First claim

The invention claimed is:

1. Electronic equipment comprising a card having an electronic component, a radiator having a bottom carrying fins, the bottom of the radiator having a face opposed to the fins resting on the electronic component, and the equipment also having a cover extending over the radiator and arranging for air to flow around the fins of the radiator, the cover including a plurality of spring blades, each pressed against a top edge of at least one of the fins in order to hold the radiator pressed against the component, and the spring blades have respective first ends that are secured to the cover and respective second ends that are free and pressed against the top edge of at least one fin, the number of spring blades being smaller than the number of fins.

2. Equipment according to claim 1 , comprising an outer housing including a ventilation opening, the cover extending from the ventilation opening to the radiator, a fan being mounted in the cover in the vicinity of the ventilation opening, a part of the cover forming a guide air under which the spring blades extend and to which the spring blades are secured.

3. Equipment according to claim 2 , wherein the cover is fastened directly to the card.

4. Equipment according to claim 1 , wherein the spring blade is of width that is greater than spacing between the fins.

5. Equipment according to claim 1 , wherein the first end of each spring blade is secured to a support part fitted in the cover.

6. Equipment according to claim 1 , wherein the cover is provided with at least one positioning portion in relief arranged to be engaged between two fins of the radiator.

7. Equipment according to claim 1 , wherein the second ends of the spring blades are at least four in number, being arranged at the vertices of a parallelogram.

8. A cooler device for an electronic component, the device comprising a radiator having a bottom carrying fins, the bottom of the radiator having a face opposed to the fins and being arranged to rest on the electronic component, and the device also having a cover arranged to extend over the radiator so as to provide a flow of air around the fins of the radiator, the cover including spring blades, each arranged to press against a top edge of at least one of the fins so as to hold the radiator pressed against the component, each spring blade having a first end that is secured to the cover and a second end that is free and pressed against the top edge of at least one fin of the radiator, the number of spring blades being smaller than the number of fins.

9. A device according to claim 8 , wherein the cover possesses an end in which a fan is fastened, a part of the cover forming a guide air under which the spring blades extend and to which the spring blades are secured.

10. A device according to claim 8 , wherein the spring blade is of width that is greater than spacing between the fins.

11. A device according to claim 8 , wherein the first ends of the spring blades are secured to a support part fitted in the cover.

12. A device according to claim 8 , wherein the cover is provided with at least one positioning portion in relief arranged to be engaged between two fins of the radiator.

13. A cooler device according to claim 8 , wherein, at rest (i.e. before being pressed against the radiator), the spring blades extend at an angle lying in the range 20° to 45° relative to the support part.

14. A device according to claim 8 , wherein the free ends of the blades are curved towards the cover.

15. Electronic equipment comprising a card having an electronic component, a radiator having a bottom carrying fins, the bottom of the radiator having a face opposed to the fins resting on the electronic component, and the equipment also having a cover extending over the radiator and arranging for air to flow around the fins of the radiator, the cover including a plurality of spring blades, each pressed against a top edge of at least one of the fins in order to hold the radiator pressed against the component, and the spring blades have respective first ends that are secured to the cover and respective second ends that are free and pressed against the top edge of at least one fin, the number of spring blades being smaller than the number of fins,
the equipment comprising an outer housing including a ventilation opening, the cover extending from the ventilation opening to the radiator, a fan being mounted in the cover in the vicinity of the ventilation opening, a part of the cover forming a guide air under which the spring blades extend and to which the spring blades are secured.

16. Electronic equipment comprising a card having an electronic component, a radiator having a bottom carrying fins, the bottom of the radiator having a face opposed to the fins resting on the electronic component, and the equipment also having a cover extending over the radiator and arranging for air to flow around the fins of the radiator, the cover including a plurality of spring blades, each pressed against a top edge of at least one of the fins in order to hold the radiator pressed against the component, and the spring blades have respective first ends that are secured to the cover and respective second ends that are free and pressed against the top edge of at least one fin, the number of spring blades being smaller than the number of fins
the equipment comprising an outer housing including a ventilation opening, the cover extending from the ventilation opening to the radiator, a fan being mounted in the cover in the vicinity of the ventilation opening, a part of the cover forming a guide air under which the spring blades extend and to which the spring blades are secured,
wherein the cover is fastened directly to the card.

Assignees

• Sagemcom Broadband Sas

Inventors

• Kohn Stephane
• Lieven Herve

Classifications

• H05K7/2049

  Pressing means used to urge contact, e.g. springs · CPC title

• H05K7/20154 Primary

  Heat dissipaters coupled to components · CPC title

• H05K7/20172 Primary

  Fan mounting or fan specifications · CPC title

• F28D1/02

  with heat-exchange conduits immersed in the body of fluid · CPC title

• H05K7/20436

  Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing · CPC title