U.S. patent application number 13/802271 was filed with the patent office on 2014-06-19 for shaft supporting module and outer rotor type fan motor having the same.
This patent application is currently assigned to SAMSUNG ELECTRO-MECHANICS CO., LTD.. The applicant listed for this patent is SAMSUNG ELECTRO-MECHANICS CO., LTD.. Invention is credited to Ki Young Lee, Hyun Kag Park, Jung Kyu Yim.
Application Number | 20140169999 13/802271 |
Document ID | / |
Family ID | 50931106 |
Filed Date | 2014-06-19 |
United States Patent
Application |
20140169999 |
Kind Code |
A1 |
Yim; Jung Kyu ; et
al. |
June 19, 2014 |
SHAFT SUPPORTING MODULE AND OUTER ROTOR TYPE FAN MOTOR HAVING THE
SAME
Abstract
Disclosed herein is a shaft supporting module, including: a
bearing rotatably supporting a shaft of a fan motor; and a
supporting body supporting the bearing, wherein the bearing is
formed of a single bearing extended in an axial direction.
Inventors: |
Yim; Jung Kyu; (Suwon,
KR) ; Park; Hyun Kag; (Suwon, KR) ; Lee; Ki
Young; (Suwon, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
Suwon |
|
KR |
|
|
Assignee: |
SAMSUNG ELECTRO-MECHANICS CO.,
LTD.
Suwon
KR
|
Family ID: |
50931106 |
Appl. No.: |
13/802271 |
Filed: |
March 13, 2013 |
Current U.S.
Class: |
417/420 ;
384/456 |
Current CPC
Class: |
F04D 25/062 20130101;
F04D 29/057 20130101 |
Class at
Publication: |
417/420 ;
384/456 |
International
Class: |
F04D 13/06 20060101
F04D013/06 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 18, 2012 |
KR |
10-2012-0148549 |
Claims
1. A shaft supporting module, comprising: a bearing rotatably
supporting a shaft of a fan motor; and a supporting body supporting
the bearing, wherein the bearing is formed of a single bearing
extended in an axial direction.
2. The shaft supporting module as set forth in claim 1, wherein the
supporting body includes: a base part; and a bearing receiving part
extended in a direction perpendicular to one surface of the base
part and having a receiving groove formed in a shape corresponding
to the bearing.
3. The shaft supporting module as set forth in claim 2, wherein in
the bearing receiving part, the receiving groove has a height equal
to or greater than that of the bearing.
4. The shaft supporting module as set forth in claim 2, wherein the
base part is formed in a disk shape and the bearing receiving part
is formed in a cylindrical shape.
5. The shaft supporting module as set forth in claim 1, wherein the
bearing is formed of a straight bearing.
6. The shaft supporting module as set forth in claim 1, wherein the
bearing is formed in a cylindrical shape.
7. An outer rotor type fan motor, comprising: a rotating part
including a shaft, a fan coupled to the shaft, and a magnet mounted
on the fan; and a fixed part including a bearing rotatably
supporting the shaft, a supporting body receiving and supporting
the bearing, and an armature mounted so as to face the magnet,
wherein the bearing is formed of a single bearing extended in an
axial direction.
8. The outer rotor type fan motor as set forth in claim 7, wherein
the armature includes: a core mounted on the supporting body; and a
coil wound around the core.
9. The outer rotor type fan motor as set forth in claim 7, wherein
the supporting body includes: a base part; and a bearing receiving
part extended in a direction perpendicular to one surface of the
base part and having a receiving groove formed in a shape
corresponding to the bearing.
10. The outer rotor type fan motor as set forth in claim 9, wherein
in the bearing receiving part, the receiving groove has a height
equal to or greater than that of the bearing.
11. The outer rotor type fan motor as set forth in claim 9, wherein
the base part is formed in a disk shape and the bearing receiving
part is formed in a cylindrical shape.
12. The outer rotor type fan motor as set forth in claim 9, wherein
the armature is mounted along an outer side of the bearing
receiving part, the magnet is mounted along an inner peripheral
surface of the fan, and the magnet and the armature are provided at
a position spaced from each other by a predetermined distance so as
to face each other.
13. The outer rotor type fan motor as set forth in claim 7, wherein
the bearing is formed of a straight bearing.
14. The outer rotor type fan motor as set forth in claim 7, wherein
the bearing is formed in a cylindrical shape.
Description
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of Korean Patent
Application No. 10-2012-0148549 filed on Dec. 18, 2012, entitled
"Shaft Supporting Module and Outer Rotor Type Fan Motor Having the
Same", which is hereby incorporated by reference in its entirety
into this application.
BACKGROUND OF THE INVENTION
[0002] 1. Technical Field
[0003] The present invention relates to a shaft supporting module
and an outer rotor type fan motor having the same.
[0004] 2. Description of the Related Art
[0005] Since an outer rotor type fan motor according to the prior
art should include upper and lower bearing parts in order to
support a shaft and should assemble one by one inner components of
the bearing part at the time of assembling the fan motor, a
structure thereof is complicated, many components are consumed, and
high wages are required for the assembly.
[0006] In addition, at the time of using a plurality of bearing in
order to support the shaft, it is difficult to secure concentricity
of the bearing and perpendicularity of the shaft.
PRIOR ART DOCUMENT
Patent Document
[0007] (Patent Document 1) Korea Patent Laid-Open Publication No.
2010-0029618
SUMMARY OF THE INVENTION
[0008] The present invention has been made in an effort to provide
a shaft supporting module capable of securing concentricity of a
bearing and perpendicularity of a shaft and an outer rotor type fan
motor having the same.
[0009] Further, the present invention has been made in an effort to
provide a shaft supporting module capable of being easily assembled
and an outer rotor type fan motor having the same.
[0010] According to a preferred embodiment of the present
invention, there is provided a shaft supporting module, including:
a bearing rotatably supporting a shaft of a fan motor; and a
supporting body supporting the bearing, wherein the bearing is
formed of a single bearing extended in an axial direction.
[0011] The supporting body may include: a base part; and a bearing
receiving part extended in a direction perpendicular to one surface
of the base part and having a receiving groove formed in a shape
corresponding to the bearing.
[0012] In the bearing receiving part, the receiving groove may have
a height equal to or greater than that of the bearing.
[0013] The base part may be formed in a disk shape and the bearing
receiving part may be formed in a cylindrical shape.
[0014] The bearing may be formed of a straight bearing.
[0015] The bearing may be formed in a cylindrical shape.
[0016] According to another preferred embodiment of the present
invention, there is provided an outer rotor type fan motor,
including: a rotating part including a shaft, a fan coupled to the
shaft, and a magnet mounted on the fan; and a fixed part including
a bearing rotatably supporting the shaft, a supporting body
receiving and supporting the bearing, and an armature mounted so as
to face the magnet, wherein the bearing is formed of a single
bearing extended in an axial direction.
[0017] The armature may include: a core mounted on the supporting
body; and a coil wound around the core.
[0018] The supporting body may include: a base part; and a bearing
receiving part extended in a direction perpendicular to one surface
of the base part and having a receiving groove formed in a shape
corresponding to the bearing.
[0019] In the bearing receiving part, the receiving groove may have
a height equal to or greater than that of the bearing.
[0020] The base part may be formed in a disk shape and the bearing
receiving part may be formed in a cylindrical shape.
[0021] The armature may be mounted along an outer side of the
bearing receiving part, the magnet may be mounted along an inner
peripheral surface of the fan, and the magnet and the armature may
be provided at a position spaced from each other by a predetermined
distance so as to face each other.
[0022] The bearing may be formed of a straight bearing.
[0023] The bearing may be formed in a cylindrical shape.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and other objects, features and advantages of the
present invention will be more clearly understood from the
following detailed description taken in conjunction with the
accompanying drawings, in which:
[0025] FIG. 1 is an exploded perspective view showing a shaft
supporting module according to a preferred embodiment of the
present invention;
[0026] FIG. 2 is a cross-sectional view showing the shaft
supporting module according to the preferred embodiment of the
present invention; and
[0027] FIG. 3 is a cross-sectional view showing an outer rotor type
fan motor having the shaft supporting module according to the
preferred embodiment of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0028] The objects, features and advantages of the present
invention will be more clearly understood from the following
detailed description of the preferred embodiments taken in
conjunction with the accompanying drawings. Throughout the
accompanying drawings, the same reference numerals are used to
designate the same or similar components, and redundant
descriptions thereof are omitted. Further, in the following
description, the terms "first", "second", "one side", "the other
side" and the like are used to differentiate a certain component
from other components, but the configuration of such components
should not be construed to be limited by the terms. Further, in the
description of the present invention, when it is determined that
the detailed description of the related art would obscure the gist
of the present invention, the description thereof will be
omitted.
[0029] Hereinafter, preferred embodiments of the present invention
will be described in detail with reference to the attached
drawings.
[0030] FIG. 1 is an exploded perspective view showing a shaft
supporting module according to a preferred embodiment of the
present invention and FIG. 2 is a cross-sectional view showing the
shaft supporting module according to the preferred embodiment of
the present invention.
[0031] Referring to FIGS. 1 and 2, a shaft supporting module 10
according to a preferred embodiment of the present invention
includes a bearing 12 rotatably supporting a shaft 31 and a
supporting body 11 supporting the bearing 12.
[0032] More specifically, the bearing 12 rotatably supports the
shaft 31 of an outer rotor type fan motor coupled to an inner
peripheral surface of the bearing 12. Here, the bearing 12 has a
bearing hole 12a formed in the inner peripheral surface thereof
such that the shaft 31 is coupled to the bearing hole 12a. In this
case, the bearing 12 is formed of a straight bearing, thereby
making it possible to support the shaft 31 using one (a single)
bearing without using an additional bearing 12.
[0033] In addition, the bearing 12 may be extended in the axial
direction so that a length thereof is 3 times or more as compared
to the width thereof In this case, the bearing 12 may be formed to
have the length which is 10 times or less as compared to the width
of the bearing 12. Here, the bearing 12 may be formed in a
cylindrical shape, but the shape of the bearing 12 according to the
preferred embodiment of the present invention is not limited to the
cylindrical shape.
[0034] The supporting body 11 has a bearing receiving part 11b
receiving the bearing 12 formed at an upper side part thereof and a
base part 11a supporting the bearing receiving part 11b formed at a
lower side part thereof, thereby making it possible to receive and
support the bearing 12.
[0035] Here, the base part 11a may be formed in a disk shape and
the bearing receiving part 11b may be formed in a cylindrical
shape. However, the shapes of the base part 11a and the bearing
receiving part 11b according to the preferred embodiment of the
present invention are not necessarily limited thereto.
[0036] In addition, the bearing receiving part 11b is extended in a
direction perpendicular to one surface of the base part 11a, such
that a receiving groove 11c receiving the bearing 12 may be formed
in an inner peripheral surface of the bearing receiving part 11b.
Here, the receiving groove 11c is formed in a shape corresponding
to the shape of the bearing 12, thereby making it possible to
receive and support the bearing 12. In this case, the receiving
groove 11c has a height equal to or greater than that of the
bearing 12.
[0037] FIG. 3 is a cross-sectional view showing an outer rotor type
fan motor having the shaft supporting module according to the
preferred embodiment of the present invention.
[0038] Referring to FIG. 3, the outer rotor type fan motor 100
according to the preferred embodiment of the present invention
includes a rotating part including the shaft 31, a fan 32, and a
magnet 33, and a fixed part including the bearing 12, the
supporting body 11, and an armature 20.
[0039] More specifically, the fan 32 is provided at one end portion
of the shaft 31 and a coupling hole or a coupling groove coupled to
the shaft 31 is formed at a central portion.
[0040] In addition, the fan 32 has a plurality of wings installed
at an outer side thereof so as to be spaced apart from each other
by a predetermined interval in a peripheral direction.
[0041] In addition, the fan 32 may be provided with a receiving
part having a lower portion opened so as to receive the magnet 33
and the armature 20.
[0042] The magnet 33 is mounted on an inner peripheral surface of
the fan 32 so as to face the armature 20. Here, the magnet 33 may
be mounted on an inner side of the receiving of the fan 32.
[0043] In addition, the magnet 33 and the armature 20 may be
provided at a position spaced from each other by a predetermined
distance so as to face each other. In this case, the magnet 33 and
the armature 20 may be installed at the same height.
[0044] Meanwhile, the rotating part 30 of the outer rotor type fan
motor 100 according the preferred embodiment of the present
invention may further include a case 34 in which the magnet 33 is
mounted. Here, the case 34 may have an inner peripheral surface on
which the magnet 33 is mounted and an outer peripheral surface
mounted on the fan 32, as an example.
[0045] However, in the outer rotor type fan motor 100 according the
preferred embodiment of the present invention, the shape in which
the magnet 33 is mounted in the case 34 is not limited to the
example, but the magnet 33 may be received in the case 34, as
another example. In this case, the case 34 of another example may
include a rotor core receiving the magnet 33.
[0046] Referring to FIGS. 1 to 3, the bearing 12 rotatably supports
the shaft 31 of the outer rotor type fan motor coupled to the inner
peripheral surface of the bearing 12. Here, the bearing 12 has a
bearing hole 12a formed in the inner peripheral surface thereof;
such that the shaft 31 is coupled to the bearing hole 12a. In this
case, the bearing 12 is formed of a straight bearing, thereby
making it possible to support the shaft 31 using one (a single)
bearing without using an additional bearing 12.
[0047] In addition, the bearing 12 may be extended in the axial
direction so that a length thereof is 3 times or more as compared
to a width thereof In this case, the bearing 12 may be formed to
have the length which is 10 times or less as compared to the width
of the bearing 12. Here, the bearing 12 may be formed in a
cylindrical shape, but the shape of the bearing 12 according to the
preferred embodiment of the present invention is not limited to the
cylindrical shape.
[0048] The supporting body 11 has a bearing receiving part 11b
receiving the bearing 12 formed at an upper side part thereof and a
base part 11a supporting the bearing receiving part 11b formed at a
lower side part thereof; thereby making it possible to receive and
support the bearing 12.
[0049] Here, the base part 11a may be formed in a disk shape and
the bearing receiving part 11b may be formed in a cylindrical
shape. However, the shapes of the base part 11a and the bearing
receiving part 11b according to the preferred embodiment of the
present invention are not necessarily limited thereto.
[0050] In addition, the bearing receiving part 11b is extended in a
direction perpendicular to one surface of the base part 11a, such
that a receiving groove 11c receiving the bearing 12 may be formed
in an inner peripheral surface of the bearing receiving part 11b.
Here, the receiving groove 11c is formed in a shape corresponding
to the shape of the bearing 12, thereby making it possible to
receive and support the bearing 12. In this case, the receiving
groove 11c has a height equal to or greater than that of the
bearing 12.
[0051] Referring to FIG. 3, the armature 20 includes a core 21
mounted on the supporting body 11 and a coil 22 wound around the
core 21.
[0052] Here, the core 21 is mounted on the bearing receiving part
11b of the supporting body 11 and may be mounted along the outer
side of the bearing receiving part 11b. Meanwhile, the core 21 may
have a hole formed at the central portion thereof so as to be
inserted into the bearing receiving part 11b.
[0053] In addition, the outer rotor type fan motor 100 according to
the preferred embodiment of the present invention may further
include a printed circuit board (PCB) 40. Here, the PCB 40 may be
formed in a plate shape so as to be mounted on the supporting body
11 of the supporting part 10.
[0054] The shaft supporting module 10 and the outer rotor type fan
motor 100 having the shaft supporting module 10 according to the
preferred embodiment of the present invention configured as
described above support the shaft 31 using the bearing extended in
the axial direction and receive and support the bearing 12 using
the supporting body 11 formed in the shape corresponding to the
bearing 12, thereby making it possible to easily secure
concentricity of the bearing 12 and perpendicularity of the shaft
31.
[0055] In addition, as described above, the shaft 31 may be
supported by the single bearing 12 without adding the bearing 12
supporting the shaft 31, such that a structure may become simple
and the number of components may be decreased. As a result, wages
may be decreased and a cost material may be decreased.
[0056] In addition, since the shaft 31 may be supported by the
single bearing 12, the problem that it is difficult to secure
concentricity of each of the plurality of bearings 12 and secure
perpendicularity of the shaft 31 in the structure in which the
shaft 31 is supported by the plurality of bearings 12 according to
the prior art may be solved.
[0057] According to the preferred embodiment of the present
invention, the bearing supporting the shaft is formed of a single
bearing extended in an axial direction of the shaft, such that
concentricity of the bearing and perpendicularity of the shaft may
be easily secured and the number of components supporting the
bearing may be decreased. In addition, costs required for the
assembly may be significantly decreased and manufacturing costs may
be decreased.
[0058] Although the embodiments of the present invention have been
disclosed for illustrative purposes, it will be appreciated that
the present invention is not limited thereto, and those skilled in
the art will appreciate that various modifications, additions and
substitutions are possible, without departing from the scope and
spirit of the invention.
[0059] Accordingly, any and all modifications, variations or
equivalent arrangements should be considered to be within the scope
of the invention, and the detailed scope of the invention will be
disclosed by the accompanying claims.
* * * * *