U.S. patent number 10,385,876 [Application Number 15/218,288] was granted by the patent office on 2019-08-20 for fan frame and heat dissipation fan having the same.
This patent grant is currently assigned to CHAMP TECH OPTICAL (FOSHAN) CORPORATION. The grantee listed for this patent is CHAMP TECH OPTICAL (FOSHAN) CORPORATION, Foxconn Technology Co., Ltd.. Invention is credited to Chien-Nan Cheng, Hsien-Chou Lin, Yung-Ping Lin, Zheng Luo, Xiao-Guang Ma.
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United States Patent |
10,385,876 |
Lin , et al. |
August 20, 2019 |
Fan frame and heat dissipation fan having the same
Abstract
A vibration-proofed fan frame includes a housing and a base
surrounded by the housing. A hollow tube is arranged on the base
and has the rotary connection with an impeller of the heat
dissipation fan. The base includes a disc and a plurality of ribs
extending outwards from periphery of the disc. The fan frame
further includes a buffer member within the structural
interconnections between the disc and the housing. The buffer
member includes first elements. The first elements are embedded in
the disc. A heat dissipation fan having the fan frame described is
also presented.
Inventors: |
Lin; Hsien-Chou (New Taipei,
TW), Ma; Xiao-Guang (Foshan, CN), Lin;
Yung-Ping (New Taipei, TW), Cheng; Chien-Nan (New
Taipei, TW), Luo; Zheng (Foshan, CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
CHAMP TECH OPTICAL (FOSHAN) CORPORATION
Foxconn Technology Co., Ltd. |
Foshan
New Taipei |
N/A
N/A |
CN
TW |
|
|
Assignee: |
CHAMP TECH OPTICAL (FOSHAN)
CORPORATION (Foshan, CN)
|
Family
ID: |
58721577 |
Appl.
No.: |
15/218,288 |
Filed: |
July 25, 2016 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20170146032 A1 |
May 25, 2017 |
|
Foreign Application Priority Data
|
|
|
|
|
Nov 24, 2015 [CN] |
|
|
2015 1 0823982 |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F04D
25/0606 (20130101); F04D 29/403 (20130101); F04D
29/522 (20130101); F04D 25/08 (20130101); F04D
29/023 (20130101); F04D 29/668 (20130101); F04D
25/0646 (20130101); F04D 29/26 (20130101); F05B
2280/4003 (20130101); F05B 2280/4004 (20130101); F05B
2280/401 (20130101); F05B 2240/20 (20130101); F05B
2240/14 (20130101) |
Current International
Class: |
F04D
25/06 (20060101); F04D 25/08 (20060101); F04D
29/02 (20060101); F04D 29/52 (20060101); F04D
29/66 (20060101); F04D 29/26 (20060101); F04D
29/40 (20060101) |
Field of
Search: |
;415/220 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
101304198 |
|
Nov 2008 |
|
CN |
|
101349289 |
|
Jan 2009 |
|
CN |
|
1415372 |
|
Nov 1975 |
|
GB |
|
Primary Examiner: Rivera; Carlos A
Assistant Examiner: Pruitt; Justin A
Attorney, Agent or Firm: ScienBiziP, P.C.
Claims
What is claimed is:
1. A fan frame, comprising: a housing; a base surrounded by the
housing, the base comprising: a disc; a hollow tube mounted on the
disc, the hollow tube having a rotary connection with an impeller
of a heat dissipation fan; and a plurality of ribs extending
outwards from periphery of the disc, the ribs interconnecting the
housing and the disc; and a buffer member operable to absorb
vibrations created by the heat dissipation fan during operation,
the buffer member comprising: at least one first damping section
embedded in the disc; and at least one second damping section
embedded in the ribs, wherein the second damping sections are
positioned at connecting portions of the ribs which are connected
to the disc.
2. The fan frame of claim 1, wherein the disc comprises an inner
surface and an outer surface, the inner surface defines a hole at
the center of the disc, the outer surface is periphery of the disc,
the first damping section is located between the inner surface and
the outer surface.
3. The fan frame of claim 2, wherein a distance between each first
damping section and the outer surface is less than a distance
between the corresponding first damping section and the inner
surface.
4. The fan frame of claim 3, wherein a quantity of the first
damping section is one, the first damping section is annular.
5. The fan frame of claim 3, wherein a quantity of the first
damping section is two or more, each of the first damping sections
is annular, the first damping sections are concentric and isolated
from each other.
6. The fan frame of claim 1, wherein a quantity of the second
damping section is two or more, one of the second damping sections
is positioned on connecting portions of the ribs which are
connected to the housing.
7. The fan frame of claim 6, wherein one of the second damping
sections is positioned on central portions of the ribs which are
between the housing and the disc.
8. The fan frame of claim 7, wherein parts of each of the second
damping sections embedded in the ribs are located at one
circumference.
9. The fan frame of claim 1, wherein the buffer member further
comprises a third damping section embedded in the housing.
10. The fan frame of claim 1, wherein the buffer member is made of
silicon resin, rubber, plastic or sponge.
11. A heat dissipation fan, comprising: a fan frame comprising: a
housing; a base surrounded by the housing, the base comprising: a
disc; a hollow tube formed at the center of the disc; and a
plurality of ribs extending outwards from periphery of the disc,
the ribs interconnecting the housing and the disc; and a buffer
member operable to absorb vibrations created by the heat
dissipation fan during operation, the buffer member comprising: at
least one first damping section embedded in the disc; and at least
one second damping section embedded in the ribs, wherein the second
damping sections are positioned at connecting portions of the ribs
which are connected to the disc; and an impeller received in the
fan frame, the hollow tube having a rotary connection with the
impeller.
12. The heat dissipation fan of claim 11, wherein the disc
comprises an inner surface and an outer surface, the inner surface
defines a hole at the center of the disc, the outer surface is
periphery of the disc, the first damping section is located between
the inner surface and the outer surface.
13. The fan frame of claim 12, wherein a distance between each
first damping section and the outer surface is less than a distance
between the corresponding first damping section and the inner
surface.
14. The heat dissipation fan of claim 1, wherein a quantity of the
second damping section is two or more, one of the second damping
sections is positioned on connecting portions of the ribs which are
connected to the housing.
15. The heat dissipation fan of claim 14, wherein one of the second
damping sections is positioned on central portions of the ribs
which are between the housing and the disc.
16. The heat dissipation fan of claim 12, wherein the buffer member
further comprises a third damping section embedded in the housing.
Description
FIELD
The subject matter relates to a heat dissipation fan, and
particularly relates to a fan frame and a heat dissipation fan
having the same.
BACKGROUND
A traditional fan includes a stator, a rotor, and a fan frame
receiving the stator and the rotor. In operation, the rotor is
driven by a motor to rotate relative to the stator, therefore
dissipating heat generated from electronic elements. However,
because of uneven mass distribution of the rotor and transformed
moments of the motor, vibration and noise can be caused when the
fan is working and stability of a heat sink including the fan is
reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
Implementations of the present technology will now be described, by
way of example only, with reference to the attached figures:
FIG. 1 is an assembly schematic view of a heat dissipation fan in
accordance with a first exemplary embodiment of the present
disclosure.
FIG. 2 is a cross-section view of the heat dissipation fan in FIG.
1, taken along the line II-II.
FIG. 3 is cross-section view of a heat dissipation fan in
accordance with a second exemplary embodiment of the present
disclosure.
FIG. 4 is cross-section view of a heat dissipation fan in
accordance with a third exemplary embodiment of the present
disclosure.
FIG. 5 is cross-section view of a heat dissipation fan in
accordance with a fourth exemplary embodiment of the present
disclosure.
FIG. 6 is cross-section view of a heat dissipation fan in
accordance with a fifth exemplary embodiment of the present
disclosure.
FIG. 7 is cross-section view of a heat dissipation fan in
accordance with a sixth exemplary embodiment of the present
disclosure.
DETAILED DESCRIPTION
It will be appreciated that for simplicity and clarity of
illustration, where appropriate, reference numerals have been
repeated among the different figures to indicate corresponding or
analogous elements. In addition, numerous specific details are set
forth in order to provide a thorough understanding of the
embodiments described herein. However, it will be understood by
those of ordinary skill in the art that the embodiments described
herein can be practiced without these specific details. In other
instances, methods, procedures, and components have not been
described in detail so as not to obscure the related relevant
feature being described. Also, the description is not to be
considered as limiting the scope of the embodiments described
herein. The drawings are not necessarily to scale and the
proportions of certain parts have been exaggerated to better
illustrate details and features of the present disclosure.
Several definitions that apply throughout this disclosure will now
be presented.
The term "coupled" is defined as connected, whether directly or
indirectly through intervening components, and is not necessarily
limited to physical connections. The connection can be such that
the objects are permanently connected or releasably connected. The
term "substantially" is defined to be essentially conforming to the
particular dimension, shape, or other feature that the term
modifies, such that the component need not be exact. For example,
"substantially cylindrical" means that the object resembles a
cylinder, but can have one or more deviations from a true cylinder.
The term "comprising," when utilized, means "including, but not
necessarily limited to"; it specifically indicates open-ended
inclusion or membership in the so-described combination, group,
series, and the like.
Referring to FIG. 1 and FIG. 2, a heat dissipation fan 1 of a first
exemplary embodiment of the present disclosure includes a fan frame
10 and an impeller 20 received in the fan frame 10.
The heat dissipation fan 1 may be an aerofoil fan. The fan frame 10
includes a housing 11 and a base 12 surrounded by the housing
11.
The housing 11 is substantially cuboid-shaped. The housing 11 is
hollow. The housing 11 includes a first end face 111 and a second
end face 112. The first end face 111 and the second end face 112
are opposite to each other. The impeller 20 is received between the
first end face 111 and the second end face 112.
The base 12 is arranged adjacent to the second end face 112 of the
housing 11. A bottom face of the base 12 is coplanar with the
second end face 112. The base 12 includes a disc 121, a plurality
of ribs 122, and a hollow tube 123. The disc 121 is positioned at
the center of the base 12. The ribs 122 interconnect the disc 121
and housing 11. The hollow tube 123 is formed at the center of the
disc 121.
In this exemplary embodiment, the disc 121 is substantially
cylindrical, and a cross-section of the disc 121 is substantially
U-shaped. The disc 121 is hollow. A hole 1213 is defined at the
center of the disc 121. The disc 121 includes an inner surface 1211
and an outer surface 1212. The inner surface 1211 is cylindrical
and defines the hole 1213. In other words, the inner surface 1211
is an inner wall of the hole 1213. The outer surface 1212 is a
periphery of the disc 121.
The ribs 122 are formed on the outer surface 1212 of the disc 121.
The ribs 122 extend outwards from the outer surface 1212 of the
disc 121 radially until interconnecting with an inner wall of the
housing 11. Each rib 122 is substantially a thick and straight
line. The ribs 122 are positioned adjacent to the second end face
112 of the housing 11.
The hollow tube 123 is formed on a top surface of the disc 121. The
hollow tube 123 extends from a center part of the top surface of
the disc 121 upwards. A channel 1231 is defined at the center of
the hollow tube 123. The channel 1231 of the hollow tube 123 and
the hole 1213 of the disc 121 are used for fixing and carrying the
impeller 20. The hollow tube 123 has a rotary connection with the
impeller 20.
The fan frame 10 can further include a buffer member 13. The buffer
member 13 is made of damping material. The damping material may be
silicon resin, rubber, plastic, sponge and so on.
In the first exemplary embodiment, the buffer member 13 includes a
first buffer element 131. The first buffer element 131 is embedded
in the disc 121. The first buffer element 131 is substantially
annular. The first buffer element 131 is located between the inner
surface 1211 and the outer surface 1212 of the disc 121. The first
buffer element 131 is adjacent to the outer surface 1212. A
distance between the first buffer element 131 and the outer surface
1212 is less than a distance between the first buffer element 131
and the inner surface 1211.
When the heat dissipation fan 1 is operating, the impeller 20
rotates, causing vibrations in the heat dissipation fan 1. The
buffer member 13 is embedded in the fan frame 10, and is located a
transmitting path of the vibrations caused by the impeller 20. The
housing 11 is thus isolated from the vibrations. Since the housing
11 is used for connecting other cooling elements and is isolated
from the vibration during operation, the connection between the
housing 11 and the cooling elements is protected.
In other exemplary embodiments, the first buffer element 131 may
have other shapes, such as rectangular frame, polygonal and so on.
It is not limited to being annular.
In the first exemplary embodiment, the quantity of the first buffer
elements 131 is one. In other exemplary embodiments, the quantity
of the first buffer elements 131 may be at least two. Referring to
FIG. 3, a cross-section of the heat dissipation fan 1 in accordance
with a second exemplary embodiment of the present disclosure is
shown. In the second exemplary embodiment, the buffer member 13
includes two first buffer elements 131. The two first buffer
elements 131 are substantially annular. The two first buffer
elements 131 are concentrically arranged. The two first buffer
elements 131 are isolated from each other.
Referring to FIG. 4 to FIG. 6, the buffer member 13 further
includes a plurality of second buffer elements 132. The quantity of
the second buffer elements 132 may be one, two or three. The second
buffer elements 132 are embedded in the ribs 122. The second buffer
elements 132 concentrically surround the first buffer elements 131.
The second buffer element 132 may be positioned at connecting
portions of the ribs 122 which are connected to the disc 121 (as
shown in FIG. 4). The second buffer element 132 may be positioned
at connecting portions of the ribs 122 which are connected to the
housing 11 (as shown in FIG. 5). The second buffer element 132 may
be positioned at central portions of the ribs 122 which are between
the housing 11 and the disc 121 (as shown in FIG. 6). The parts of
each second buffer element 132 embedded in the ribs 122 are located
at one circumference.
Referring to FIG. 7, the buffer member 13 may further includes at
least a third buffer element 133. The third buffer element 133 is
embedded in the housing 11. A shape of the third buffer element 133
is substantially the same as the housing 11. In the sixth
embodiment, a quantity of the third buffer elements 133 is one. The
third buffer element 133 is also substantially a rectangular ring.
The third buffer element 133 is positioned above and outside the
first buffer elements 131 and the second buffer elements 132. In
other embodiments, the third buffer element 133 may also be
positioned to surround the first buffer elements 131 and the second
buffer elements 132.
The embodiments shown and described above are only examples. Many
details are often found in the art such as the other features of
the fan frame. Therefore, many such details are neither shown nor
described. Even though numerous characteristics and advantages of
the present technology have been set forth in the foregoing
description, together with details of the structure and function of
the present disclosure, the disclosure is illustrative only, and
changes may be made in the detail, especially in matters of shape,
size, and arrangement of the parts within the principles of the
present disclosure, up to and including the full extent established
by the broad general meaning of the terms used in the claims. It
will therefore be appreciated that the embodiments described above
may be modified within the scope of the claims.
* * * * *