KR20140065512A - Fan motor - Google Patents
Fan motor Download PDFInfo
- Publication number
- KR20140065512A KR20140065512A KR1020120129452A KR20120129452A KR20140065512A KR 20140065512 A KR20140065512 A KR 20140065512A KR 1020120129452 A KR1020120129452 A KR 1020120129452A KR 20120129452 A KR20120129452 A KR 20120129452A KR 20140065512 A KR20140065512 A KR 20140065512A
- Authority
- KR
- South Korea
- Prior art keywords
- shaft
- fan member
- drive magnet
- fan
- sleeve
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
The present invention relates to a fan motor.
Generally, the fan member of the fan motor and the drive magnet are coupled by insert molding. That is, the drive magnet is insert-molded when the thermoplastic resin pan is molded.
However, since the heat shrinkage rate of the fan member is larger than the heat shrinkage rate of the drive magnet, the shrinkage force of the fan member after molding acts in the direction of compressing the drive magnet. By this compression force, the fan member and the drive magnet are coupled.
However, when the fan member and the drive magnet are coupled only by the compressive force generated by the difference in the shrinkage ratio, there is a problem that the drive magnet disengages from the fan member during driving of the fan member.
In addition, when the drive magnet is insert-molded when the fan member is formed, the manufacturing process is complicated and the manufacturing cost is increased.
Further, when the drive magnet is insert-molded when the fan member is formed, there is a problem that the drive magnet is tilted and coupled to the fan member to reduce the perpendicularity, thereby deteriorating the rotational characteristics.
A fan motor capable of reducing separation of a drive magnet is provided.
A fan motor according to an embodiment of the present invention includes a base member having an engaging portion formed to protrude therefrom to form an engaging groove, a sleeve inserted in the engaging groove and having a shaft hole formed therein, a shaft inserted and disposed in the shaft hole of the sleeve, And a driving magnet fixedly mounted on an upper end of the shaft and rotated in association with the shaft, and a driving magnet fixedly mounted on an inner circumferential surface of the fan member, wherein the driving magnet has a projection protruding from an upper surface thereof, The projecting portion may be press-fitted into the insertion groove formed in the fan member.
The fan motor may further include a stator core fixed to the outer circumferential surface of the coupling portion and disposed to face the drive magnet.
The protrusions may be spaced apart from each other along the circumferential direction.
The drive magnet may be bonded to the inner circumferential surface of the fan member by an adhesive.
The insertion groove may be formed so as to be deeper than the axial length of the protrusion, so that the adhesive may be filled when the protrusion is press-fitted.
Since the projecting portion of the drive magnet is press-fitted into the insertion groove of the fan member, there is an effect that separation of the drive magnet from the fan member can be reduced.
1 is a schematic cross-sectional view illustrating a fan motor according to an embodiment of the present invention.
2 is an enlarged view showing part A of Fig.
3 is a perspective view illustrating a drive magnet included in a fan motor according to an embodiment of the present invention.
4 is a perspective view showing a modified embodiment of a drive magnet provided to a fan motor according to an embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.
FIG. 1 is a schematic sectional view showing a fan motor according to an embodiment of the present invention, FIG. 2 is an enlarged view showing part A of FIG. 1, FIG. 3 is a perspective view of a driving magnet Fig.
1 to 3, a
1, the axis direction means a direction from the lower end to the upper end of the
The circumferential direction means a direction of rotation along the outer circumferential surface of the
The
A
The
In addition, when the
Meanwhile, the
The
The lower end of the
The
Meanwhile, the
A hub 142a for coupling with the upper end of the
Meanwhile, the
The
The
Meanwhile, the
When the power is supplied to the coil wound around the
The
Further, the
The
The
In this manner, since the projecting
4, the
Since the projecting
Since the depth of the
Accordingly, the coupling force between the driving
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be obvious to those of ordinary skill in the art.
100: Fan motor
110: Base member
120: Sleeve
130: shaft
140: Fan member
150: Driving magnet
Claims (5)
A sleeve inserted into the coupling groove and having a shaft hole formed therein;
A shaft inserted into the shaft hole of the sleeve and rotated;
A fan member fixedly mounted on an upper end of the shaft and rotated in association with the shaft; And
A drive magnet fixedly installed on an inner circumferential surface of the fan member;
/ RTI >
Wherein the drive magnet has a projection protruding from an upper surface thereof,
And the protruding portion is press-fitted into the insertion groove formed in the fan member.
And a stator core fixedly mounted on an outer circumferential surface of the engaging portion and disposed opposite to the drive magnet.
And the protrusions are spaced apart from each other along the circumferential direction.
And the drive magnet is bonded to the inner circumferential surface of the fan member by an adhesive.
Wherein the insertion groove is formed to be deeper than an axial length of the protrusion, so that the adhesive is filled when the protrusion is press-fitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120129452A KR20140065512A (en) | 2012-11-15 | 2012-11-15 | Fan motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120129452A KR20140065512A (en) | 2012-11-15 | 2012-11-15 | Fan motor |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140065512A true KR20140065512A (en) | 2014-05-30 |
Family
ID=50892318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120129452A KR20140065512A (en) | 2012-11-15 | 2012-11-15 | Fan motor |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20140065512A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111121174A (en) * | 2020-01-16 | 2020-05-08 | 珠海格力电器股份有限公司 | Fan assembly, window air conditioner and control method thereof |
-
2012
- 2012-11-15 KR KR1020120129452A patent/KR20140065512A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111121174A (en) * | 2020-01-16 | 2020-05-08 | 珠海格力电器股份有限公司 | Fan assembly, window air conditioner and control method thereof |
CN111121174B (en) * | 2020-01-16 | 2024-03-29 | 珠海格力电器股份有限公司 | Fan assembly, window air conditioner and control method of window air conditioner |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101101606B1 (en) | Motor and optical disc drive using the same | |
KR101622020B1 (en) | Outer rotor type motor, cooling air circulation using the same and refrigerator using the same | |
US9768651B2 (en) | Motor with thrust bearing | |
JP2013128390A (en) | Mold motor | |
US10862368B2 (en) | Brushless direct current vibration motor having cogging plates for optimized vibrations | |
US20150162791A1 (en) | Rotor and motor including the same | |
JP2011045156A (en) | Electric motor and rotor | |
JP2008236960A (en) | Motor rotor, motor, air conditioner and manufacturing method | |
KR20130120733A (en) | Rotor of brushless dc motor | |
KR101188073B1 (en) | Spindle motor | |
US8836189B2 (en) | Spindle motor having lubricant filled bearing clearance | |
JP2006288200A (en) | Production and motor of permanent-magnet rotor | |
KR20140065512A (en) | Fan motor | |
KR20160040788A (en) | BLDC motor and fixing method of stator housing thereof | |
KR20120116608A (en) | Rotor for motor | |
JP2008312402A (en) | Axial air-gap type motor | |
JP2015073350A (en) | Rotor and electric motor | |
US8727746B2 (en) | Method of producing a mini fan and a mini fan produced according to said method | |
KR20170062889A (en) | Surface permanent magnet synchronous motor | |
US20110127860A1 (en) | Brushless dc motor | |
JP5750360B2 (en) | Electric pump manufacturing method | |
KR20070109263A (en) | Brushless motor | |
CN110011446A (en) | A kind of brushless motor | |
KR20140067345A (en) | Motor rotor assembly for green car | |
KR200419965Y1 (en) | Magnet rotor for motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |