Configurable heat sink with matrix clipping system

• US 20080019095A1
• Filed: 07/24/2006
• Published: 01/24/2008
• Est. Priority Date: 07/24/2006
• Status: Abandoned Application

• Current Assignee: Kechuan Liu
• Original Assignee: Kechuan Liu
• Inventors: Liu, Kechuan
• Application Number:
  US11/492,180
• Publication Number:
  US 20080019095A1
• Time in Patent Office: Days
• US Class Current: 361/704
• CPC Class Codes: H01L 23/367 Cooling facilitated by shape of device H01L23/38, H01L23/40, H01L23/42, H01L23/44, H01L23/46 take precedence
• CPC Class Codes: H01L 23/4093 Snap-on arrangements, e.g. clips
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A heat sink apparatus for use with electronic components comprises a base portion and at least a securing portion. The base portion and the securing portion are of unitary construction. The base portion is configured to have at least one receiving aperture and one heat-conducting surface with fins extended from or attached to its opposite surface. The securing portion is a unitary construction which comprises a cam element and spring clip with auto-align and camming mechanism features. The securing portion is configured to have partially constrained with the base portion, and to be slide along the length direction for dynamic location of electronic device on heat sink. The cam element can be rotated about its cylindrical feature axis resiliently to effect an engaged relation to substantially fixedly maintain the electronic component in abutting relation with heat-conducting surface.

Claims

1. A heat sink apparatus for use with at least one electronic component;

the apparatus comprising;

(a) a base portion; and

(b) a securing portion;

said base portion and said securing portion being of unitary construction;

said securing portion is partially constrained with said base portion and configured to flex about at one axis resiliently to effect an engaged relation with said base portion;

said base portion and said securing portion cooperating in said engaged relation to substantially fixedly maintain said at least one electronic component in abutting relation with said base portion;

2. A heat sink apparatus for use with at least one electronic component as recited in claim 1 wherein said base portion comprising at least one heat conducting surface, at least one receiving aperture and a plurality of extended surface areas or fins;

3. A heat sink apparatus for use with at least one electronic component as recited in claim 2 wherein said heat conducting surface having at least a certain smooth area for electronic component to contact with thereon;

4. A heat sink apparatus for use with at least one electronic component as recited in claim 3 wherein said heat conducting surface usually having fins attached or born thereto its opposite side;

5. A heat sink apparatus for use with at least one electronic component as recited in claim 2 wherein said receiving aperture is a L-channel with an openings on both ends and said heat conducting side;

6. A heat sink apparatus for use with at least one electronic component as recited in claim 5 wherein said L-channel having a width of “

w”

;

7. A heat sink apparatus for use with at least one electronic component as recited in claim 1 wherein said securing portion configured to be unitary construction of a spring wire clip and camming bar. Where said spring wire clip comprising a pair of legs, and a pair of curved cantilever arms, and a pair of kick arms and connected by a clamping beam or beam thereon which said camming bar to be attached.

8. A heat sink apparatus for use with at least one electronic component as recited in claim 7 wherein said camming bar and said beam of said spring clip have co-axis in assembly.

9. A heat sink apparatus for use with at least one electronic component as recited in claim 8 wherein said camming bar must be able to rotate freely about said co-axis with said beam of said spring clip.

10. A heat sink apparatus for use with at least one electronic component as recited in claim 7 wherein said pair of legs formed with spring wire with diameter “

d”

which is slightly smaller than said L-channel width “

w”

.

11. A heat sink apparatus for use with at least one electronic component as recited in claim 7 wherein said curved cantilever arms having to be formed with an angle “

θ

”

with said leg.

12. A heat sink apparatus for use with at least one electronic component as recited in claim 7 wherein said camming bar and spring clip are unitarily constructed.

13. A heat sink apparatus for use with at least one electronic component as recited in claim 7 wherein said kick legs configured to have the auto-aligning mechanism.

14. A heat sink apparatus for use with at least one electronic component as recited in claim 1 wherein said securing portion configured to cooperatively engage a corresponding said receiving aperture (L-channel) in said base portion so that said curved cantilever arms of said spring clip is able to swing about one axis;

therefore said connecting beam of said curved cantilever arm to substantially fixedly maintain said at least one electronic component in abutting relation with said heat conducting surface area after said camming bar executes the camming mechanism;

16. A heat sink apparatus for use with at least one electronic component as recited in claim 14 wherein said economic means including machineless and fixtureless assembly operations;

17. A heat sink apparatus for use with at least one electronic component as recited in claim 14 wherein said assembly operations including deforming, half-sheared, staking and swaging, etc;

19. A heat sink apparatus for use with at least one electronic component as recited in claim 17 wherein said means of being dynamic locating is that the position of electronic device is changeable.

20. A heat sink apparatus for use with at least one electronic component as recited in claim 19 wherein said means of being dynamic locating being made possible by the cooperation of said securing portion and said base portion.

15. A heat sink apparatus for use with at least one electronic component;

the apparatus comprising;

(a) a base portion; and

(b) a securing portion;

said base portion and partially constraining said securing portion with said base portion;

said base portion and said securing portion being of unitary construction;

said securing portion partially constrained inside of said base portion and configured to flex about at least one axis resiliently to effect an engaged relation with said base portion;

said base portion and said securing portion cooperating in said engaged relation to substantially fixedly maintain said at least one electronic component in abutting relation with said base member;

said means for said unitary construction of said base portion and said securing portion being very economical;

18. A heat sink apparatus for use with at least one electronic component;

the apparatus comprising;

(a) a base portion;

(b) a securing portion;

(c) means for joining said securing portion inside said base portion and for joining said cam bar onto said spring clip; and

(e) means of being dynamic locating;

said base portion and said securing portion being of unitary construction;

said securing portion partially constrained with said base portion and configured to flex about at least one axis resiliently to effect an engaged relation with said base portion;

said base portion and said securing portion cooperating in said engaged relation to substantially fixedly maintain said at least one electronic component in abutting relation with said base frame;

said cam bar and said spring clip being of unitary construction. Said cam bar being rotated freely about said co-axis of said receiving cylindrical aperture and round beam to effect the clamping mechanism, said means for said unitary constructions of said base portion and said securing portion and said cam bar and spring clip being very economical;