U.S. patent application number 13/337258 was filed with the patent office on 2013-06-13 for heat sink assembly with mistake-proof structure.
This patent application is currently assigned to HON HAI PRECISION INDUSTRY CO., LTD.. The applicant listed for this patent is CHENG-HSIU YANG. Invention is credited to CHENG-HSIU YANG.
Application Number | 20130146252 13/337258 |
Document ID | / |
Family ID | 48570920 |
Filed Date | 2013-06-13 |
United States Patent
Application |
20130146252 |
Kind Code |
A1 |
YANG; CHENG-HSIU |
June 13, 2013 |
HEAT SINK ASSEMBLY WITH MISTAKE-PROOF STRUCTURE
Abstract
A heat sink assembly includes a fixing plate, a heat sink, a
number of first fasteners, and a second fastener. The fixing plate
includes a number of first poles and a second pole extending from a
top of the fixing plate. A first threaded hole is defined in a top
of each first pole, and a first threaded portion is formed on a top
of the second pole. The heat sink includes a base. The first and
second fasteners are extended through the base. A second threaded
portion is formed on a bottom of each first fastener, and engages
in a corresponding one of the first threaded holes. A second
threaded hole is defined in a bottom of the second fastener, and
engages with the first threaded portion. The second pole and the
second fastener can limit the heat sink fixed to the fixing plate
to only one angle.
Inventors: |
YANG; CHENG-HSIU; (Tu-Cheng,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
YANG; CHENG-HSIU |
Tu-Cheng |
|
TW |
|
|
Assignee: |
HON HAI PRECISION INDUSTRY CO.,
LTD.
Tu-Cheng
TW
|
Family ID: |
48570920 |
Appl. No.: |
13/337258 |
Filed: |
December 26, 2011 |
Current U.S.
Class: |
165/67 |
Current CPC
Class: |
H01L 2924/0002 20130101;
H01L 23/4006 20130101; H01L 2924/0002 20130101; H01L 2924/00
20130101 |
Class at
Publication: |
165/67 |
International
Class: |
F28F 9/00 20060101
F28F009/00 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 9, 2011 |
TW |
100145484 |
Claims
1. A heat sink assembly, comprising: a fixing plate, comprsing a
plurality of first poles and a second pole extending from a top
surface of the fixing plate, wherein a first threaded hole is
defined in a top of each first pole, and a first threaded portion
is formed on a top of the second pole; a heat sink comprising a
base; a plurality of first fasteners extending through the base,
wherein a second threaded portion is formed on a bottom of each
first fastener, and engages in the first threaded hole of a
corresponding one of the first poles; and a second fastener
extending through the base, wherein a second threaded hole is
defined in a bottom of the second fastener, and engages with the
first threaded portion of the second pole.
2. The heat sink assembly of claim 1, wherein the first poles and
the second pole are symmetrically arranged around a center of the
fixing plate, the first fasteners and the second fastener are
symmetrically arranged around a center of the base.
3. The heat sink assembly of claim 2, wherein each first fastener
comprises a head and a post perpendicularly extending down from a
bottom of the head, the second threaded portion extends down from a
bottom of the post.
4. The heat sink assembly of claim 3, wherein the second fastener
comprises a head and a post perpendicularly extending down from a
bottom of the head of the second fastener, the second threaded hole
is defined in a bottom of the post of the second fastener.
5. The heat sink assembly of claim 4, wherein a plurality of
springs are respectively placed around the posts of the first and
second fasteners, and respectively sandwiched between the base of
the heat sink and the corresponding heads of the first and second
fasteners.
6. The heat sink assembly of claim 5, wherein a circular slot is
defined in a circumference of each post adjacent to a bottom of the
post, a plurality of substantially C-shaped tabs is respectively
engaged in the slots of the posts and engaged with a bottom of the
base.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] The present disclosure relates to a heat sink assembly.
[0003] 2. Description of Related Art
[0004] To fasten a heat sink having a number of through holes to a
motherboard, a fixing plate defining a number of threaded holes is
first mounted to the motherboard. Then, a number of screws are
respectively extended through the through holes and are engaged in
threaded holes, to fix the heat sink to the fixing plate. The heat
sink always needs to be fixed to the fixing plate at a
predetermined angle. However, the through holes are always
symmetrically arranged on the heat sink around a center of the heat
sink, and the heat sink can be fixed to the fixing plate in
multiple angles. If there is no mistake-proof design, the heat sink
may be easily fixed to the fixing plate at an error angle.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] Many aspects of the present embodiments can be better
understood with reference to the following drawings. The components
in the drawings are not necessarily drawn to scale, the emphasis
instead being placed upon clearly illustrating the principles of
the present embodiments. Moreover, in the drawing, all the views
are schematic, and like reference numerals designate corresponding
parts throughout the several views.
[0006] FIG. 1 is an exploded, isometric view of an exemplary
embodiment of a heat sink assembly.
[0007] FIG. 2 is similar to FIG. 1, but viewed from another
perspective.
[0008] FIG. 3 is an assembled, isometric view of FIG. 2.
DETAILED DESCRIPTION
[0009] The disclosure, including the accompanying drawings, is
illustrated by way of example and not by way of limitation. It
should be noted that references to "an" or "one" embodiment in this
disclosure are not necessarily to the same embodiment, and such
references mean at least one.
[0010] FIGS. 1 and 2, are exemplary embodiments of a heat sink
assembly including a fixing plate 10, three first fasteners 20, a
second fastener 30, four springs 40, four substantially C-shaped
tabs 50, and a heat sink 60.
[0011] The heat sink 60 includes a square base 61, and a plurality
of fins 63 extending up from the base 61. Four through holes (not
shown) are defined in the base 61, respectively adjacent to four
corners of the base 61. The through holes are symmetrically
arranged around a center of the base 61.
[0012] The fixing plate 10 is square shaped. Three first poles 12
perpendicularly extend up from the fixing plate 10, respectively
adjacent to three corners of the fixing plate 10. A second pole 14
perpendicularly extends up from the fixing plate 10, adjacent to
the last corner of the fixing plate 10. The first poles 12 and the
second pole 14 are symmetrically arranged around a center of the
fixing plate 10. A first threaded hole 121 is defined in the top of
each first pole 12. The second pole 14 includes a post 141 and a
first threaded portion 143 extending up from the top of the post
141. The fixing plate 10 is mounted to a motherboard (not shown) at
a predetermined angle.
[0013] Each first fastener 20 includes a head 21, a post 23
perpendicularly extending down from the bottom of the head 21, and
a second threaded portion 25 extending down from the bottom of the
post 23. A circular slot 231 is defined in a circumference of the
post 23 adjacent to the second threaded portion 25. Three springs
40 are respectively placed around the posts 23. The second threaded
portions 25 and lower sections of the posts 23 respectively extend
through three predetermined through holes of the base 61, to allow
three tabs 50 to engage in the slots 231 under the base 61. The
springs 40 are respectively sandwiched between the base 61 and the
corresponding heads 21. The tabs 50 engage with the bottom of the
base 61.
[0014] The second fastener 30 includes a head 31, and a post 33
perpendicularly extending down from the bottom of the head 31. A
second threaded hole 331 is defined in the bottom of the post 33. A
circular slot 333 is defined in a circumference of the post 33
adjacent to the bottom of the post 33. The last spring 40 is placed
around the post 33. A lower section of the post 33 is extended
through the last through hole of the base 61, to allow the last tab
50 to engage in the slot 333 under the base 61. The last spring 40
is sandwiched between the base 61 and the head 31. The last tab 50
engages with the bottom of the base 61.
[0015] FIG. 3, in assembly, the heat sink 60 is placed above the
fixing plate 10, to allow the second fastener 30 to align with the
second pole 14, and to allow the first fasteners 20 to respectively
align with the first poles 12. The first and second fasteners 20
and 30 are operated, to allow the second threaded portions 25 to
respectively engage in the first threaded holes 121, and to allow
the first threaded portion 143 to engage in the second threaded
hole 331. Thereby, the heat sink 60 is fastened to the fixing plate
10 at a right angle. In the embodiment, the second pole 14 and the
second fastener 30 can limit the heat sink 60 fastening to the
fixing plate 10 at only one angle, which can prevent angle mistake
in assembly of the heat sink 60.
[0016] Even though numerous characteristics and advantages of the
embodiments have been set forth in the foregoing description,
together with details of the structure and the functions of the
embodiments, the disclosure is illustrative only, and changes may
be made in details, especially in matters of shape, size, and
arrangement of parts within the principles of the embodiments to
the full extent indicated by the broad general meaning of the terms
in which the appended claims are expressed.
* * * * *