U.S. patent application number 13/707963 was filed with the patent office on 2013-11-21 for swivelling shield providing protection to fan.
This patent application is currently assigned to HON HAI PRECISION INDUSTRY CO., LTD.. The applicant listed for this patent is HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (SHENZHE)CO.,LTD. Invention is credited to ZHAN-YANG LI, XU YANG.
Application Number | 20130309074 13/707963 |
Document ID | / |
Family ID | 49581433 |
Filed Date | 2013-11-21 |
United States Patent
Application |
20130309074 |
Kind Code |
A1 |
YANG; XU ; et al. |
November 21, 2013 |
SWIVELLING SHIELD PROVIDING PROTECTION TO FAN
Abstract
A shield for a fan includes a mounting frame, a receiving frame
and a mounting plate. A plurality of shielding pieces is pivotally
mounted on the mounting frame. The receiving frame receives the
mounting frame. The receiving frame includes a bottom edge
containing a weight block. The mounting plate defines a vent hole.
The receiving frame is pivotally mounted on the mounting plate and
aligned to the vent hole. Gravity of the weight block causes the
bottom edge to be always in a horizontal direction and the
undermost position of the receiving frame.
Inventors: |
YANG; XU; (Shenzhen, CN)
; LI; ZHAN-YANG; (Shenzhen, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HONG FU JIN PRECISION INDUSTRY (SHENZHE)CO.,LTD
HON HAI PRECISION INDUSTRY CO., LTD. |
Shenzhen
New Taipei |
|
CN
TW |
|
|
Assignee: |
HON HAI PRECISION INDUSTRY CO.,
LTD.
New Taipei
TW
HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
Shenzhen
CN
|
Family ID: |
49581433 |
Appl. No.: |
13/707963 |
Filed: |
December 7, 2012 |
Current U.S.
Class: |
415/182.1 |
Current CPC
Class: |
F01D 25/28 20130101;
H05K 7/20181 20130101 |
Class at
Publication: |
415/182.1 |
International
Class: |
F01D 25/28 20060101
F01D025/28 |
Foreign Application Data
Date |
Code |
Application Number |
May 16, 2012 |
CN |
201210151598.5 |
Claims
1. A shield for a fan, comprising: a mounting frame, a plurality of
shielding pieces pivotally mounted on the mounting frame; a
receiving frame receiving the mounting frame mounted therein, the
receiving frame comprising a bottom edge, and a weight block
mounted on the bottom edge; and a mounting plate defining a vent
hole, the receiving frame pivotally mounted on the mounting plate
and aligned with the vent hole; wherein gravity of the weight block
is configured to contain the bottom edge in a horizontal direction
and the undermost position of the receiving frame.
2. The shield of claim 1, wherein a post is secured in a center
portion of the vent hole, the receiving frame defines a pivot hole,
and the post is povitally mounted in the pivot hole.
3. The shield of claim 2, wherein each of four corners of the
mounting plate comprises a positioning member, and the positioning
member abuts the receiving frame.
4. The shield of claim 3, wherein the positioning member comprises
a spring and a ball, the spring is abuts the ball, the positioning
member defines a through hole, a size of the through hole is
smaller than a diameter of the ball, and part of the ball extends
out of the positioning member via the through hole to abut the
receiving frame.
5. The shield of claim 4, wherein each of four corners of the
receiving frame defines a recess, and the ball is configured to be
positioned in the recess.
6. The shield of claim 4, wherein the positioning member comprises
a first receiving case and a second receiving case, the first
receiving case defines a first receiving room, the second receiving
case defines a second receiving room, and the first receiving room
and the second receiving room together receive the spring and the
ball therein.
7. The shield of claim 6, wherein a side of the first receiving
case defines a semicircular first cutout, a side of the second
receiving case defines a semicircular second cutout, widths of the
semicircular first cutout and the semicircular second cutout are
smaller than the diameter of the ball, and the semicircular first
cutout and the semicircular second cutout together form the through
hole.
8. The shield of claim 7, wherein the first receiving case
comprises a plurality of locks, the second receiving case comprises
a plurality of locking holes, and the plurality of locks are
engaged in the plurality of locking holes to secure the first
receiving case and the second receiving case together.
9. The shield of claim 1, wherein the plurality of shielding pieces
of the mounting frame is kept in the horizontal direction.
10. A shield, comprising: a receiving frame with a plurality of
horizontal shielding pieces pivotally mounted thereon, the
receiving frame comprising a bottom edge which extends in a
horizontal direction, a weight block mounted on the bottom edge;
and a mounting plate defining a vent hole, the receiving frame
pivotally mounted on the mounting plate and aligned with the vent
hole; wherein gravity of weight block is configured to contain the
bottom edge in a horizontal direction and at the undermost position
of the receiving frame.
11. The shield of claim 10, wherein a post is secured on a center
portion of vent hole, the receiving frame defines a pivot hole, and
the post is pivotally mounted in the pivot hole.
12. The shield of claim 11, wherein each of four corners of the
mounting plate comprises a positioning member, and the positioning
member abuts the receiving frame.
13. The shield of claim 12, wherein the positioning member
comprises a spring and a ball, the spring abuts the ball, the
positioning member defines a through hole, a size of the through
hole is smaller than a diameter of the ball, and part of the ball
extends out of the positioning member via the through hole to abut
the receiving frame.
14. The shield of claim 13, wherein each of four corners of the
receiving frame defines a recess, and the ball is configured to be
positioned in the recess.
15. The shield of claim 13, wherein the positioning member
comprises a first receiving case and a second receiving case, the
first receiving case defines a first receiving room, the second
receiving case defines a second receiving room, and the first
receiving room and the second receiving room together receive the
spring and the ball therein.
16. The shield of claim 15, wherein a side of the first receiving
case defines a semicircular first cutout, a side of the second
receiving case defines a semicircular second cutout, widths of the
semicircular first cutout and the semicircular second cutout are
smaller than the diameter of the ball, and the semicircular first
cutout and the semicircular second cutout together form the through
hole.
17. The shield of claim 16, wherein the first receiving case
comprises a plurality of locks, the second receiving case comprises
a plurality of locking holes, and the plurality of locks are
engaged in the plurality of locking holes to secure the first
receiving case and the second receiving case together.
18. The shield of claim 10, wherein the weight block is mounted on
a center portion of the bottom edge.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] The present disclosure relates to fans, and more
particularly to a fan with shield.
[0003] 2. Description of Related Art
[0004] A large amount of heat may be generated from electric
elements of an electronic device during operation. If the heat is
not dissipated efficiently, the electric elements may be damaged.
Therefore, efficient heat-dissipating devices are essential.
[0005] A fan is used as a means to dissipate the heat from the
electronic device. A rack can be provided for receiving a plurality
of fans. A plurality of through holes is defined in the rack for
the passage of air. However, debris or air particles may enter the
electronic device via the plurality of through holes. The debris or
air particles may cause damage to the electronic device. A shield
is provided for shielding against debris or air particles. However,
if the electronic device is rotated through an angle, the fan
shielding is ineffective.
[0006] Therefore, there is room for improvement within the art.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Many aspects of the 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
embodiments. Moreover, in the drawings, like reference numerals
designate corresponding parts throughout the several views.
[0008] FIG. 1 is an exploded and isometric view of a shield of a
fan of an embodiment.
[0009] FIG. 2 is an exploded and isometric view of a positioning
member of FIG. 1.
[0010] FIG. 3 is an assembled view of the positioning member of
FIG. 2.
[0011] FIG. 4 is an assembled view of the shield of FIG. 1.
DETAILED DESCRIPTION
[0012] The disclosure is illustrated by way of example and not by
way of limitation in the figures of the accompanying drawings in
which like references indicate similar elements. 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."
[0013] Referring to FIGS. 1 and 2, an embodiment of a shield of a
fan includes a mounting plate 10, a mounting frame 30, and a
receiving frame 60.
[0014] The mounting plate 10 is the mounting of the shield of a fan
(not shown) on an electronic device (not shown). The mounting plate
10 defines a rectangular vent hole 12. A post 13 is located on a
center portion of vent hole 12. Each of four corners of the vent
hole 12 is protected against noise and vibration with a positioning
member 50, which is a sprung-ball locator.
[0015] The mounting frame 30 includes a rectangular first frame
body 31. A center portion of the first frame body 31 is hollow to
define a first opening 32. The first frame body 31 includes a
plurality of clasps 311. The first frame body 31 includes a first
frame edge 35 and a parallel second frame edge 36. The first frame
edge 35 and the second frame edge 36 are located on opposite edges
of the first opening 32. A plurality of parallel pivot shafts 37 is
pivotally mounted in the first opening 32. Each of the plurality of
pivot shafts 37 is located horizontally in the first opening 32.
Each of the plurality of pivot shafts 37 secures a shielding piece
38. The shielding piece 38 is adapted to rotate together with the
corresponding pivot shaft 37. The shielding piece 38 can rotate
between a shielding position and an exposing position. In the
shielding position, the plurality of shielding pieces 38 together
shield the first opening 32 against the ingress of debris and
air-borne particles. In the exposing position, the plurality of
shielding pieces 38 does not shield the first opening 32 and allows
air to flow through the first opening 32.
[0016] The receiving frame 60 is configured to receive the mounting
frame 30 therein. The receiving frame 60 includes a rectangular
second frame body 61. The second frame body 61 defines a plurality
of engaging holes 611, corresponding to the plurality of clasps 311
of the mounting frame 30. A center portion of the second frame body
61 is hollow, defining a second opening 62. A mounting piece 63 is
secured in a center portion of second opening 62. The mounting
piece 63 defines a pivot hole 631 for receiving the post 13
therein. The receiving frame 60 includes a bottom edge 65. A center
portion of the bottom edge 65 secures a weight block 67 of very
dense material. Each of the four corners of the receiving frame 60
defines a recess 69.
[0017] Referring to FIGS. 2 and 3, the positioning member 50
includes a first receiving case 51, a second receiving case 52, a
spring 70, and a ball 80. The positioning member 50 defines a first
receiving room 511. A side of the positioning member 50 defines a
semicircular first cutout 513. A width of the first cutout 513 is
smaller than a diameter of the ball 80. The first cutout 513
communicates with the first receiving room 511. The first receiving
case 51 includes a plurality of locks 517. The second receiving
case 52 defines a second receiving room 521. A side of the second
receiving case 52 forms a semicircular second cutout 523,
corresponding to the first cutout 513 of the first receiving case
51. A width of the second cutout 523 is smaller than a diameter of
the ball 80. The second cutout 523 communicates with the second
receiving room 521. The second case 52 defines a plurality of
locking holes 527.
[0018] In assembly of the positioning member 50, the spring 70 and
the ball 80 are placed in the first receiving room 511. The inner
side of the first case 51 resists an end of the spring 70. Another
end of the spring 70 pushes against the ball 80. The ball 80 is
aligned to the first cutout 513. Part of the ball 80 extends
through the first cutout 513 by the force of the spring 70. Then,
the plurality of locks 517 of the first receiving case 51 engage in
the plurality of locking holes 527 of the second case 52, to secure
the first receiving case 51 and the second receiving case 52
together. The first receiving room 511 and the second receiving
room 521 together receive the spring 70 and the ball 80 therein.
The first cutout 513 and the second cutout 523 together form a
through hole, for part of the ball 80 to extend out of the first
receiving case 51 and the second receiving case 52. The edges of
the through hole keep the ball 80 captive in the first receiving
case 51 and the second receiving case 52. The ball 80 can rotate in
the first receiving room 511 and the second receiving room 521. The
assembled positioning member 50 is mounted on each of the four
corners of the vent hole 12.
[0019] Referring to FIGS. 1 to 4, the mounting frame 30 is placed
in second opening 62 of the receiving frame 60. The clasps 311 of
the mounting frame 30 engage with the engaging holes 611 of the
receiving frame 60, to secure the mounting frame 30 and the
receiving frame 60 together. Then, the receiving frame 60 is
aligned to the vent hole 12 of the mounting plate 10. The post 13
of the mounting plate 10 is inserted in the pivot hole 631, of the
receiving frame 60, to pivotally mount the receiving frame 60 on
the mounting plate 10. The presence of the weight block 67 mounted
on the bottom edge 65 of the receiving frame 60 causes the bottom
edge 65 to gravitate to the undermost position of the receiving
frame 60, by the gravity of the weight block 67. At this position,
the balls 80 of the positioning members 50 are located in the
recesses 69 of the receiving frame 60. The mounting plate 10 is
then mounted on the electronic device to provide shielding to a
fan.
[0020] When the electronic device is moved or repositioned at
another angle, the receiving frame 60 rotates to keep the bottom
edge 65 in the horizontal direction and the undermost position by
the gravity of the weight block 67. Therefore, the shielding pieces
38 of the mounting frame 30 are kept in a horizontal direction. The
pressure of the balls 80 of the positioning members 50 is low
enough to ensure that the balls 80 can escape from the recesses 69
of the receiving frame 60 as gravity acts upon the weight block 67.
The balls 80 can slide back in the recesses 69 when the bottom edge
65 is in the horizontal direction.
[0021] In the above shield, the weight block 67 always keeps the
bottom edge 65 as the horizontal and the undermost edge of the
receiving frame 60, to maintain the shielding pieces 38 always in
horizontal direction. Therefore, the shield can keep working
effectively.
[0022] It is to be understood, however, that even though numerous
characteristics and advantages of the embodiments have been set
forth in the foregoing description, together with details of the
structure and functions of the embodiments, the disclosure is
illustrative only, and changes may be made in detail, especially in
the matters of shape, size, and arrangement of parts within the
principles of the present disclosure to the full extent indicated
by the broad general meaning of the terms in which the appended
claims are expressed.
* * * * *