CN103348570A - Fan motor - Google Patents

Fan motor Download PDF

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Publication number
CN103348570A
CN103348570A CN2013800006143A CN201380000614A CN103348570A CN 103348570 A CN103348570 A CN 103348570A CN 2013800006143 A CN2013800006143 A CN 2013800006143A CN 201380000614 A CN201380000614 A CN 201380000614A CN 103348570 A CN103348570 A CN 103348570A
Authority
CN
China
Prior art keywords
rotating shaft
stator
rotor
cap
side bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013800006143A
Other languages
Chinese (zh)
Other versions
CN103348570B (en
Inventor
广泽清
山本年宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ikuraseiki Seisakusho Co Ltd
Original Assignee
Ikuraseiki Seisakusho Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ikuraseiki Seisakusho Co Ltd filed Critical Ikuraseiki Seisakusho Co Ltd
Publication of CN103348570A publication Critical patent/CN103348570A/en
Application granted granted Critical
Publication of CN103348570B publication Critical patent/CN103348570B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/062—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • 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
    • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/03—Machines characterised by thrust bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

This fan motor (1) has: a stator (6); a rotor (4) with a rotary shaft (22); a cover section (8) and a bracket (2) that liquid-tightly surround the stator (6) and the rotor (4) entirely, except for the top end of the rotary shaft (22); and a fan member (10) that is fixed to the top end of the rotary shaft (22). An insertion hole (42) is created on the cover section (8) and the bracket (2) in order for the top end of the rotary shaft (22) to be inserted therein with the top end projected to the outside of the cover section (8) and the bracket (2), and a cover-section-side bearing (44) is provided between the insertion hole (42) and the rotary shaft (22).

Description

Fan motor
Technical field
The present invention relates to a kind of fan motor, particularly relate to a kind of stator arrangement in the fan motor of the external rotor structure in the outside of rotor.
Background technology
For example, as patent documentation 1 is disclosed, for prevent from around drop, dust etc. enter the inside of fan motor, known fan motor has in the past adopted water proof structure.As shown in Figure 2, this patent documentation 1 disclosed fan motor comprises: have the rotor 102 of rotating shaft 100, the stator 104 of inboard that is disposed at rotor 102 and the enclosure body 106 that surrounds whole rotor 102 and whole stator 104.The upper end perforation of rotating shaft 100 is formed on the through hole 108 of enclosure body 106 and gives prominence to the outside of enclosure body 106, in this upper end fan member 110 is arranged fixedly.In the fan motor of such structure, for anti-sealing enters from the through hole 108 of enclosure body 106 and the gap 112 between the rotating shaft 100, by being set in enclosure body 106, fan member 110, concavo-convex general path 114, that lead to gap 112 forms labyrinth-like between the two.
The prior art document
Patent documentation
Patent documentation 1: No. 4822021 communique of Japan's special permission
Summary of the invention
The problem that invention will solve
Yet, in the fan motor 100 of such structure in the past, even path 114 is formed labyrinth-like, but have gap 112, therefore be the structure of waterproof and dustproof completely hardly.
Therefore, the object of the present invention is to provide a kind of fan motor that can obtain reliable water proofing property, dust tightness.
For the scheme of dealing with problems
In order to reach above-mentioned purpose, fan motor of the present invention comprises: stator; Rotor, it has rotating shaft; Enclosure body, it surrounds the entire portion except the upper end of rotating shaft of stator and rotor liquid-tightly; And fan member, it is fixed in the upper end of rotating shaft; This fan motor is characterised in that, enclosure body be formed with for the upper end of rotating shaft run through and the upper end that makes rotating shaft to the outstanding through hole in the outside of enclosure body, between through hole and rotating shaft, be provided with the enclosure body side bearing.
In the present invention of this spline structure, owing between the through hole of enclosure body and rotating shaft, be provided with the enclosure body side bearing, therefore utilize the enclosure body side bearing can stop up gap between enclosure body and the rotating shaft.Thereby, owing to making enclosure body, the bearing that can utilize supporting rotating shaft surrounds rotor and stator liquid-tightly, therefore can realize the reliable waterproof and dustproof of fan motor.
In the present invention, preferably, rotor configuration is provided with the stator side bearing in the outside of stator between stator and rotating shaft, and rotor is fixed in rotating shaft between enclosure body side bearing and stator side bearing.
In the present invention of this spline structure, owing to adopted the outside, the so-called external rotor structure of rotor configuration in stator, and rotor is fixed in rotating shaft between enclosure body side bearing and stator side bearing, so rotor can utilize enclosure body side bearing and stator side bearing with the supporting of double base structure.Thereby rotatablely moving of rotor is stable, can obtain the stable rotation action of fan motor.
Description of drawings
Fig. 1 is the cutaway view of the fan motor of one embodiment of the present invention.
Fig. 2 is the cutaway view of fan motor in the past.
Embodiment
Below, with reference to the description of drawings preferred embodiment of the present invention.Fig. 1 is the cutaway view of the fan motor of one embodiment of the present invention.As shown in Figure 1, the fan motor 1 of present embodiment is the AC motor, comprises be used to the carriage 2 as base portion that fan motor 1 is set, is disposed at rotor 4 on the carriage 2 and stator 6, is used for surrounding the cap 8 of rotor 4 and stator 6 and with the upside that covers cap 8 and the fan member 10 that mode on every side disposes.In addition, in the present embodiment, with the top of Fig. 1 as the top of fan motor 1, the below as fan motor 1, the below of Fig. 1 is described.In addition, enclosure body of the present invention constitutes and comprises carriage 2 and cap 8.
Carriage 2 is by forming discoid bottom surface sections 12, vertically erectting cylindric 14 of the central portion that is arranged at bottom surface sections 12 with bottom surface sections 12 and constitute.Be formed with the protuberance 16 of ring-type at the outer circumferential side of bottom surface sections 12.In addition, cylindric 14 bottom becomes circular peristome 14A.
Rotor 4 comprises down bowl-shape rotor case 18, is located at die-stacks 20 and the rotating shaft 22 of the inwall of rotor case 18.
Rotor case 18 form utilize disc-shaped component stop up sidewall cylindraceous upper surface the round-ended cylinder shape arranged, its central portion is fixed in rotating shaft 22 by lining 24.At the central portion of the disc-shaped component of rotor case 18, around lining 24, be formed with circular recess 26, the periphery wall 26A of recess 26 extends with rotating shaft 22 abreast with cylindric around rotating shaft 22.In addition, the recess 26 of rotor case 18 also can not be to form.
The chip of stacked many ring-types of being made up of silicon steel plate etc. of die-stacks 20 forms, and lower surface is provided with not shown short-circuited conducting sleeve thereon.Die-stacks 20 is parallel with the outer surface of stator 6 and be disposed at the outside of stator 6 apart from outer surface with having specified gap.
Rotating shaft 22 is disposed in cylindric 14 of bottom surface sections 12 central authorities, is provided with stator side bearing 28 between the outer surface of cylindric 14 inner surface of stator 6 and rotating shaft 22.Rotating shaft 22 utilizes this stator side bearing 28 to support in the mode that can rotate with respect to stator 6.Stator side bearing 28 utilizes the seal 14B of the peristome 14A that stops up carriage 2 to be fixed in cylindric 14.The upper end of rotating shaft 22 connects cap 8 and outstanding to the outside of cap 8.
Stator 6 comprises die-stacks 30 and is wound in the coil 32 of die-stacks 30.
Die-stacks 30 forms by stacked many chips that are made of silicon steel plate etc. on the coil rack that is made of ambroin.Coil 32 be wound in continuously die-stacks 30 around.
Cylindric 14 the periphery that is fixed in carriage 2 interior week of stator 6.At this, the inner peripheral surface of stator 6 is positioned at the position of leaning on the radial direction outside than the periphery wall 26A of the recess 26 of rotor case 18.Thereby for example, as shown in Figure 1, under the situation that the coil rack 6A of stator 6 gives prominence to upward than the bottom surface of the recess 26 of rotor case 18, stator 6 can not interfere with rotor case 18 yet.Thereby, can effectively utilize the space that rotor case 18 interior ratio recesses 26 lean on the top.
Cap 8 becomes sidewall cylindraceous 34 and has covered bowl-shape that the upper surface 36 of the top of sidewall 34 forms as one and forms, and is formed with the recess 38 of ring-type in the lower surface of sidewall 34.This recess 38 is disposed at the position corresponding with the protuberance 16 of carriage 2, by embed O-ring seals 40 between above-mentioned recess 38 and protuberance 16, seals the lower surface of cap 8 and the bottom surface sections 12 of carriage 2.In addition, the central portion at the upper surface 36 of cap 8 is formed with the through hole 42 that runs through for rotating shaft 22.And, between the outer surface of the inner surface of through hole 42 and rotating shaft 22, be provided with cap side bearing 44.Rotating shaft 22 utilizes this cap side bearing 44 to support in the mode that can rotate with respect to cap 8, and stops up the gap between cap 8 and the rotating shaft 22.By such structure, become roughly airtight liquid-tight space 46 by cap 8 and bottom surface sections 12 area surrounded, this space 46 accommodates a part, rotor 4 and the stator 6 of rotating shaft 22.Thereby the enclosure body that is made of cap 8 and carriage 2 has surrounded the top (upper surface side) of rotor 4, top (upper surface side), (outer circumferential side) and below (lower face side) on every side of (outer circumferential side) and below (lower face side) and stator 6 on every side.
On rotating shaft 22, between the inner ring of stator side bearing 28 and lining 24, be penetrated with helical spring 45.Stator side bearing 28 and lining 24 utilize helical spring 45 to the direction application of force disconnected from each other.Thus, the inner ring of 45 pairs of stator side bearings 28 of helical spring applies preload and applies preload across the inner ring of 24 pairs of cap side bearings 44 of lining, thereby makes the inner ring location of inner ring and the cap side bearing 44 of stator side bearing 28.In addition, except utilizing spring stator side bearing 28 and cap side bearing 44 are applied the preload, can also utilize lock washer to apply preload.In addition, helical spring 45 can also be to be located at the outer ring of the outer ring of stator side bearing 28 and cap side bearing 44 and by above-mentioned bearing 28,44 the outer ring application of force being applied the structure of preload.
Between cap side bearing 44 and fan member 10, be provided with lining 47 and guarantee each other distance.
In addition, central portion at the upper surface 36 of cap 8, be formed with the inclined plane 48 of cutting frustum that tilts towards middle heart around through hole 42 downwards, the end is formed with the protuberance 50 of outstanding upward ring-type thereon, is formed with the recess 52 of depression downwards at the outer circumferential side of protuberance 50.At protuberance 50 the tabular flange part of giving prominence to foreign side from the outer circumferential side end of protuberance 50 54 is installed, this flange part 54 covers the part of the top of recesses 52.In addition, on the outer peripheral face bottom of the sidewall 34 of cap 8, be formed with the protuberance 56 of outstanding upward ring-type in the position than the outer side of outer peripheral face.In addition, the inclined plane 48 of cap 8 upper surfaces also can not be to arrange.
Fan member 10 is to cover the upper surface 36(upside of cap 8) and sidewall 34(around) the mode of foreign side dispose, form have discoid upper surface 58 and the integrally formed columnar sidewall 60 of the periphery of upper surface 58 the round-ended cylinder shape arranged, and integral body is down bowl shape.Outer peripheral face at sidewall 60 is formed with a plurality of blades 62.Following ora terminalis in fan member 10 is formed with the recess 64 of opening downwards, is extruded with the protuberance 56 of cap 8 in the inside of this recess 64.In addition, the lower surface at the upper surface 36 of fan member 10 is formed with outstanding protuberance 66 downwards.Protuberance 66 is positioned at the position than the flange part 54 outer sides of cap 8, and gives prominence in recess 52.
Utilize the structure of such protuberance 50, flange part 54, recess 52 and protuberance 66, the gap between fan member 10 and the cap 8 forms labyrinth-like, drop, dust is become be difficult to enter into this gap.In addition, utilize the recess 64 of fan member 10 and the protuberance 56 of cap 8 also can make the gap between fan member 10 and the cap 8 form labyrinth-like, thereby prevent that drop, dust from entering between fan member 10 and the cap 8 from this gap.In addition, be formed with recess 68 at the central portion of upper surface 36, on this recess 68, fan member 10 is fixed in the upper end of rotating shaft 22.
In the fan motor 1 of above-mentioned such structure, when making rotor 4 rotations in coil 32 energisings, rotating shaft 22 makes fan member 10 rotations with rotor 4 rotations.
According to the present embodiment that constitutes in this wise, can obtain the effect of following such excellence.
Therefore between cap 8 and rotating shaft 22, cap side bearing 44 be set, owing to the mode supporting rotating shaft 22 that utilizes this cap side bearing 44 can rotate with rotating shaft 22 can prevent from producing the gap between cap 8 and rotating shaft 22.In structure in the past shown in Figure 2, two positions of rotating shaft 100 below the lining 116 that rotor 102 is fixed in rotating shaft 100 are supported on bearing 118.In such structure in the past, produce gap 112 between enclosure body 106 and the rotating shaft 100.Relative therewith, in the present embodiment, the outside at rotor 4, owing to utilize the cap side bearing 44 of supporting rotating shaft 22 to fill up gap between cap 8 and the rotating shaft 22, therefore can utilize the enclosure body that is constituted by cap 8 and carriage 2 to surround rotor 6 and stator 4 liquid-tightly, thereby can prevent reliably that drop, dust etc. from entering from the gap between cap 8 and the rotating shaft 22.
Owing to become the outside, so-called external rotor structure that rotor 4 is disposed at stator 6, cap side bearing 44 is disposed at than the position of lining 24 by the top, therefore and stator side bearing 28 is disposed at than lining 24 position on the lower, can be in the mode of grip roll 4 at two-side supporting rotating shaft 22.Thereby the supporting construction that comprises the rotor 4 of rotating shaft 22 becomes firm, can make the spinning movement of rotor 4 stable.
The present invention is not limited to above execution mode, for example, in the above-described embodiment, be the outside, the so-called external rotor structure of rotor configuration in stator, but be not limited thereto, can also adopt stator arrangement in the outside, the so-called internal rotor structure of rotor.
As fan motor, be not limited to the such AC motor of above-mentioned execution mode, can also adopt the DC motor.Under the situation that adopts the DC motor, as rotor, also can use magnet, as stator, except the structure that has adopted stacked core body as described above, the structure by the compressed-core material that powder compression molding is formed, the structures such as centreless type that do not use core body ground to form at substrate installation hollow coil can also have been adopted.
In addition, as the insulating method of stator, except above-mentioned execution mode uses the method for coil rack like that, can also guarantee insulating properties by powder sintered coating insulating resin on matrix.
Description of reference numerals
1 fan motor; 2 carriages; 4 rotors; 6 stators; 8 caps; 10 fan member; 22 rotating shafts; 28 stator side bearings; 42 through holes.

Claims (2)

1. a fan motor is characterized in that, this fan motor comprises:
Stator;
Rotor, it has rotating shaft;
Enclosure body, it surrounds the entire portion except the upper end of above-mentioned rotating shaft of said stator and above-mentioned rotor liquid-tightly; And
Fan member, it is fixed in the upper end of above-mentioned rotating shaft;
Above-mentioned enclosure body be formed with that upper end for above-mentioned rotating shaft is run through and the upper end that makes above-mentioned rotating shaft to the outstanding through hole in the outside of above-mentioned enclosure body,
Between above-mentioned through hole and above-mentioned rotating shaft, be provided with the enclosure body side bearing.
2. fan motor according to claim 1, wherein,
Above-mentioned rotor configuration is in the outside of said stator,
Between said stator and above-mentioned rotating shaft, be provided with the stator side bearing,
Above-mentioned rotor is fixed in above-mentioned rotating shaft between above-mentioned enclosure body side bearing and said stator side bearing.
CN201380000614.3A 2012-01-26 2013-01-28 Fan motor Active CN103348570B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012013943A JP5884214B2 (en) 2012-01-26 2012-01-26 Fan motor
JP2012-013943 2012-01-26
PCT/JP2013/051767 WO2013111903A1 (en) 2012-01-26 2013-01-28 Fan motor

Publications (2)

Publication Number Publication Date
CN103348570A true CN103348570A (en) 2013-10-09
CN103348570B CN103348570B (en) 2016-05-04

Family

ID=48873613

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380000614.3A Active CN103348570B (en) 2012-01-26 2013-01-28 Fan motor

Country Status (7)

Country Link
US (1) US20140154108A1 (en)
JP (1) JP5884214B2 (en)
KR (1) KR101493635B1 (en)
CN (1) CN103348570B (en)
DE (1) DE112013000708B4 (en)
TW (1) TWI536716B (en)
WO (1) WO2013111903A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105978211A (en) * 2015-03-10 2016-09-28 阿斯莫株式会社 Brushless motor
CN110932452A (en) * 2019-12-12 2020-03-27 浙江亿雄机电制造有限公司 Efficient and dustproof EC motor
CN117329140A (en) * 2023-10-17 2024-01-02 肇庆晟辉电子科技有限公司 Fan blade with dustproof structure and fan

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TWI575849B (en) * 2015-05-06 2017-03-21 佛山市建準電子有限公司 Motor
US10215231B2 (en) * 2017-06-26 2019-02-26 Asia Vital Components Co., Ltd. Bearing structure with close fit
KR102371384B1 (en) * 2017-08-03 2022-03-07 엘지이노텍 주식회사 Motor for drone
TWI659594B (en) * 2018-02-09 2019-05-11 建準電機工業股份有限公司 Bearing positioning structure and motor including the same
KR102350767B1 (en) * 2020-06-04 2022-01-14 주식회사 오성기전 Brushless Direct Current Motor Assembly
KR102584929B1 (en) * 2021-03-18 2023-10-05 주식회사 코아오토모티브 Fan motor assembly

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CN201274427Y (en) * 2008-02-05 2009-07-15 松下电器产业株式会社 Brushless motor
US20100215491A1 (en) * 2009-02-24 2010-08-26 Dyson Technology Limited Rotor assembly
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Publication number Priority date Publication date Assignee Title
JPH08182242A (en) * 1994-12-27 1996-07-12 Kosoku Denki Kk Dustproof structure of bearing for motor
EP0907028A1 (en) * 1997-10-03 1999-04-07 Bitron S.p.A. An electric fan assembly with a hermetically sealed electric motor
JP4822021B2 (en) * 2007-12-27 2011-11-24 株式会社育良精機製作所 Fan motor
CN201274427Y (en) * 2008-02-05 2009-07-15 松下电器产业株式会社 Brushless motor
US20100215491A1 (en) * 2009-02-24 2010-08-26 Dyson Technology Limited Rotor assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105978211A (en) * 2015-03-10 2016-09-28 阿斯莫株式会社 Brushless motor
US10224777B2 (en) 2015-03-10 2019-03-05 Denso Corporation Brushless motor with water stopping walls creating labyrinth structure
CN105978211B (en) * 2015-03-10 2019-10-01 株式会社电装 Brushless motor
CN110932452A (en) * 2019-12-12 2020-03-27 浙江亿雄机电制造有限公司 Efficient and dustproof EC motor
CN117329140A (en) * 2023-10-17 2024-01-02 肇庆晟辉电子科技有限公司 Fan blade with dustproof structure and fan

Also Published As

Publication number Publication date
JP2013153628A (en) 2013-08-08
WO2013111903A1 (en) 2013-08-01
US20140154108A1 (en) 2014-06-05
DE112013000708T5 (en) 2014-11-20
JP5884214B2 (en) 2016-03-15
DE112013000708B4 (en) 2022-08-18
KR101493635B1 (en) 2015-02-13
CN103348570B (en) 2016-05-04
TW201340555A (en) 2013-10-01
KR20130111642A (en) 2013-10-10
TWI536716B (en) 2016-06-01

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