KR101622020B1 - Outer rotor type motor, cooling air circulation using the same and refrigerator using the same - Google Patents
Outer rotor type motor, cooling air circulation using the same and refrigerator using the same Download PDFInfo
- Publication number
- KR101622020B1 KR101622020B1 KR1020140024911A KR20140024911A KR101622020B1 KR 101622020 B1 KR101622020 B1 KR 101622020B1 KR 1020140024911 A KR1020140024911 A KR 1020140024911A KR 20140024911 A KR20140024911 A KR 20140024911A KR 101622020 B1 KR101622020 B1 KR 101622020B1
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- South Korea
- Prior art keywords
- rotor case
- magnet
- type motor
- rotor
- outer rotor
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to an outer rotor type motor, comprising: a bearing holder in which a bearing is housed; A rotating shaft supported by the bearing holder; A stator coupled to the bearing holder; A rotor case disposed on the outside of the stator and integrally coupled to the rotating shaft by insert injection; And a magnet integrally coupled to the rotor case by insert injection.
Description
The present invention relates to a motor, and more particularly, to an outer rotor type motor, a cool air circulation fan using the same, and a refrigerator using the same.
In general, a motor is a device that converts electrical energy into mechanical energy such as rotational force. The motor is used in various devices requiring a rotational force such as a cold air circulating fan of a refrigerator, a blowing fan of an air conditioner, a compressor and an automobile.
The motor can be classified into an outer rotor type motor and an inner rotor type motor depending on whether or not the rotor is disposed outside the stator. The outer rotor type motor is advantageous in that it can be made compact in the radial direction and the axial direction as compared with the inner rotor type motor. For this reason, the outer rotor type motor has a tendency to be used in the circulation fan of the refrigerator because it can reduce the installation space of the motor and increase the internal space of the refrigerator.
Korean Patent Laid-Open Publication No. 10-2010-0029619 discloses an example of a conventional outer rotor type motor used for a cool air circulating fan of a refrigerator.
Hereinafter, a conventional outer rotor type motor used for a circulation fan of a refrigerator will be described with reference to the drawings.
1 is a cross-sectional view showing a conventional outer rotor type motor.
1, a conventional outer rotor type motor 1 includes a
On the other hand, the rotor case 8 and the
Incidentally, when the
SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide an outer rotor type motor for preventing vibration of a rotor by coupling a rotary shaft and a rotor case, And a refrigerator using the same.
According to an aspect of the present invention, there is provided an outer rotor type motor comprising: a bearing holder for receiving a bearing; A rotating shaft supported by the bearing holder; A stator coupled to the bearing holder; A rotor case disposed on the outside of the stator and integrally coupled to the rotating shaft by insert injection; And a magnet integrally coupled to an inner circumferential surface of the rotor case by insert injection, wherein the rotation shaft includes a rotor case engaging portion to which the rotor case is engaged, and the rotor case engaging portion is diamond knurling .
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Further, the material of the rotor case may be plastic.
Further, the magnet may include a magnet departure prevention protrusion, and the rotor case may include a magnet release prevention groove into which the magnet departure prevention protrusion is fitted.
Further, the magnet may be a polar anisotropic plastic magnet.
According to another aspect of the present invention, there is provided a cooling fan using an outer rotor type motor, the cooling fan including an outer rotor type motor according to any one of the above aspects, The blade assembly is coupled.
According to another aspect of the present invention, there is provided a refrigerator using a cool air circulation fan using an outer rotor type motor, comprising a cool air circulation fan using the outer rotor type motor, The cool air circulation fan using the rotor type motor is installed in the cool air duct.
According to the embodiment of the present invention as described above, the rotary shaft and the rotor case are coupled by the insert injection method, so that the shaft center of the rotary shaft coincides with the center of gravity of the rotor case.
1 is a view showing a conventional outer rotor type motor.
2 is an exploded perspective view illustrating a circulation fan using an outer rotor type motor according to an embodiment of the present invention.
3 is a longitudinal sectional view illustrating a cooling fan using an outer rotor type motor according to an embodiment of the present invention.
FIG. 4 is an enlarged view of FIG. 2 A. FIG.
5 and 6 are views showing a coupling relationship between a rotary shaft and a rotor of an outer rotor type motor according to another embodiment of the present invention.
7 is a view illustrating a refrigerator using a cool air circulation fan using an outer rotor type motor according to an embodiment of the present invention.
The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the scope of the invention.
Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted. Also, it is to be understood that the terms used in the following description, such as the up and down, left and right, front and rear, and the like, are terms based on the accompanying drawings.
Hereinafter, an outer rotor type motor and a cool air circulation fan using the outer rotor type motor according to an embodiment of the present invention will be described with reference to a cool air fan using an outer rotor type motor according to an embodiment of the present invention.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling fan for a cooling fan using an outer rotor type motor, and more particularly to a cooling fan using an outer rotor type motor according to an embodiment of the present invention. FIG. 4 is an enlarged view of FIG. 2, and FIG. 5 and FIG. 6 are views showing a coupling relationship between a rotary shaft and a rotor of an outer rotor type motor according to another embodiment of the present invention.
2 to 6, a cool air circulation fan 100 (hereinafter, referred to as a cool air circulation fan) using an outer rotor type motor according to an embodiment of the present invention is installed in a cool air duct of a refrigerator, And an outer rotor type motor 300 (hereinafter, referred to as a motor) for rotating the
The
The
The
The
The bearing receiving
A
The
The
At the upper end of the
The
The
The
The lower portion of the
In order to prevent the
5 and 6, the rotor
The blade
The
The
On the other hand, when the
A
The
Meanwhile, the
Hereinafter, a refrigerator using a cool air circulation fan using an outer rotor type motor according to another embodiment of the present invention will be described with reference to the drawings.
7 is a view illustrating a refrigerator using a cool air circulation fan using an outer rotor type motor according to an embodiment of the present invention.
Referring to FIG. 7, a refrigerator 400 (hereinafter, referred to as a refrigerator) using a cold air circulating fan using an outer rotor type motor according to an embodiment of the present invention includes an
Meanwhile, the cool
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that
100: cool air circulation fan 200: blade assembly
300: Outer rotor type motor 400: Refrigerator
Claims (9)
A rotating shaft supported by the bearing holder;
A stator coupled to the bearing holder;
A rotor case disposed outside the stator; And
Including magnets,
Wherein the rotor case is formed by insert injection, the rotor case is integrally coupled to the rotation shaft, the magnet is integrally coupled to the inner peripheral surface of the rotor case,
Wherein the rotating shaft includes a rotor case engaging portion to which the rotor case is engaged,
Wherein the rotor case coupling portion is diamond knurled.
Wherein the material of the rotor case is plastic.
Wherein the magnet includes a magnet departure prevention protrusion,
Wherein the rotor case includes a magnet release preventing groove into which the magnet departure prevention protrusion is fitted.
Wherein the magnet is a polar anisotropic plastic magnet.
And a blade assembly for circulating cold air is coupled to the rotary shaft.
Wherein the cool air circulation fan using the outer rotor type motor is installed in the cool air duct.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140024911A KR101622020B1 (en) | 2014-03-03 | 2014-03-03 | Outer rotor type motor, cooling air circulation using the same and refrigerator using the same |
PCT/KR2015/002029 WO2015133787A1 (en) | 2014-03-03 | 2015-03-03 | Outer rotor type motor, cool air circulation fan using same, and refrigerator using same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140024911A KR101622020B1 (en) | 2014-03-03 | 2014-03-03 | Outer rotor type motor, cooling air circulation using the same and refrigerator using the same |
Publications (2)
Publication Number | Publication Date |
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KR20150103439A KR20150103439A (en) | 2015-09-11 |
KR101622020B1 true KR101622020B1 (en) | 2016-05-17 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020140024911A KR101622020B1 (en) | 2014-03-03 | 2014-03-03 | Outer rotor type motor, cooling air circulation using the same and refrigerator using the same |
Country Status (1)
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KR (1) | KR101622020B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20190061200A (en) | 2017-11-27 | 2019-06-05 | 효성전기주식회사 | Hole Structure of Rotor Case for Improving Cooling Efficiency |
KR20220113571A (en) * | 2021-02-05 | 2022-08-16 | 주식회사 제이엠더블유 | BLDC Motor rotor |
US12027921B2 (en) | 2019-11-28 | 2024-07-02 | Samsung Electronics Co., Ltd. | Motor |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102590901B1 (en) | 2016-06-09 | 2023-10-19 | 엘지이노텍 주식회사 | Motor for drone and drone including the same |
KR101912428B1 (en) * | 2016-07-29 | 2018-10-26 | 산일테크(주) | Fan motor |
GB2557958B (en) * | 2016-12-20 | 2020-05-13 | Dyson Technology Ltd | A motor and a handheld product having a motor |
KR102491350B1 (en) * | 2017-10-19 | 2023-01-25 | 엘지이노텍 주식회사 | Motor for drone and drone having the same |
KR101965512B1 (en) * | 2017-11-23 | 2019-04-05 | (주)타마스 | Fan Motor |
KR102041050B1 (en) * | 2018-06-15 | 2019-11-27 | 뉴모텍(주) | Fan motor having parts-integrated rotor |
KR200496726Y1 (en) * | 2021-01-15 | 2023-04-11 | 주식회사 에스 씨디 | Fan motor with oil scattering prevention structure |
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2014
- 2014-03-03 KR KR1020140024911A patent/KR101622020B1/en active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190061200A (en) | 2017-11-27 | 2019-06-05 | 효성전기주식회사 | Hole Structure of Rotor Case for Improving Cooling Efficiency |
US12027921B2 (en) | 2019-11-28 | 2024-07-02 | Samsung Electronics Co., Ltd. | Motor |
KR20220113571A (en) * | 2021-02-05 | 2022-08-16 | 주식회사 제이엠더블유 | BLDC Motor rotor |
KR102613213B1 (en) * | 2021-02-05 | 2023-12-15 | 주식회사 제이엠더블유 | BLDC Motor rotor |
Also Published As
Publication number | Publication date |
---|---|
KR20150103439A (en) | 2015-09-11 |
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