CN102310763A - In-wheel motor and electric vehicle - Google Patents

In-wheel motor and electric vehicle Download PDF

Info

Publication number
CN102310763A
CN102310763A CN2011101833517A CN201110183351A CN102310763A CN 102310763 A CN102310763 A CN 102310763A CN 2011101833517 A CN2011101833517 A CN 2011101833517A CN 201110183351 A CN201110183351 A CN 201110183351A CN 102310763 A CN102310763 A CN 102310763A
Authority
CN
China
Prior art keywords
coil
yoke
axle
fixed
wheel motor
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
CN2011101833517A
Other languages
Chinese (zh)
Other versions
CN102310763B (en
Inventor
白木学
窪田惠一
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.)
New Shicoh Motor Co Ltd
Original Assignee
Shicoh Motor Shanghai 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 Shicoh Motor Shanghai Co Ltd filed Critical Shicoh Motor Shanghai Co Ltd
Publication of CN102310763A publication Critical patent/CN102310763A/en
Application granted granted Critical
Publication of CN102310763B publication Critical patent/CN102310763B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

Abstract

The invention provides an in-wheel motor and an electric vehicle, wherein the in-wheel motor is equipped with an inner yoke so as to increase the density of the magnetic flux applied to a coil and is easy to assemble. The in-wheel motor 1 of the invention comprises a cylindrical coil 13; a coil supporting member 11 fixed to a shaft 9; an outer yoke 15 which is configured at the outer circumferential side of the coil 13 and is fixed outside a rim 5; a magnet 31 fixed on an inner circumferential surface of the outer yoke 15; and an inner yoke 17. The outer yoke 15 and the inner yoke 17 are freely rotated relative to the shaft 9 respectively, and are separated from each other.

Description

In-wheel motor and elec. vehicle
Technical field
The invention relates to through being arranged on motor and the in-wheel motor of drive wheels in the vehicle rim, particularly about electronlmobil, hybrid vehicle, and the elec. vehicle of Electrical Bicycle etc.
Background technology
Following content is disclosed in patent documentation 1 (the flat 5-22133 communique of the open JP of utility model) and the patent documentation 2 (the open JP2006-246678 communique of patent).Promptly; Cylindric coil is fixed on the coil support member; This coil support member is fixed on axle, and the cylindric outside yoke that is fixed with magnetite interior week is set at the outer circumferential side of coil, constitutes in-wheel motor thereby outside yoke is fixed on wheel rim; Wherein, through rotate the driving wheel rim to coil power supply.
On the other hand, in order to improve the flux density that acts on the magnetite on the coil, can consider to be arranged on the inner yoke of tubular interior all sides of tubular coil.Being provided with the occasion of inner yoke, in order to make the magnetic flow circulation of magnetite, generally is to be made as one to inner yoke and outside yoke.
But, if be made as one to inner yoke and outside yoke, with regard to the comparatively difficult such problem of installation that has coil support member and coil in interior all sides of coil.
Summary of the invention
Therefore, the objective of the invention is: provide inner yoke to be set can improve the flux density that acts on coil, simultaneously, also easier in-wheel motor of assembling and elec. vehicle.
For realizing the in-wheel motor of said purpose, be characterized in having: cylindric coil, all sides are inserted with axle in it; The coil support member, it is fixed on axle and support coils; Cylindric outside yoke, it is configured in the outer circumferential side of coil, and is fixed on wheel rim; Magnetite, it is fixed on the inner peripheral surface of outside yoke, and be configured in the outer peripheral face of coil in opposite directions and right; Cylindric inner yoke, it is configured in interior all sides of coil, and be configured in the inner peripheral surface of coil in opposite directions and right; Wherein, outside yoke and inner yoke rotate freely with respect to axle respectively, and disconnected from each other.
Described in-wheel motor, further, outside yoke has: main part, it comprises cylindrical portion and the bottom surface sections that is arranged on an end of cylindrical portion; And cap, it is arranged on the other end of cylindrical portion.Be formed with the patchhole of axle on bottom surface sections and the cap respectively, thereby fix the inside of airtight outside yoke to main part and cap.
For the inventive features of the elec. vehicle of realizing said purpose is to have described in-wheel motor.
According to described in-wheel motor, because of the interior all sides at coil are provided with inner yoke, outside yoke and inner yoke can improve the flux density that acts on coil, can improve driving torque.
The assembling of in-wheel motor for example, is fixed on the coil support member on the axle, and is installed in the rotation of inner yoke freely on the axle, afterwards, coil configuration in the periphery of inner yoke and be fixed on the coil support member.Then, be installed in periphery that is positioned at coil and the outside yoke rotation that is fixed with magnetite on it freely on the axle, again the external yoke ferropexy on wheel rim.
Like this, coil and coil support member can not hinder installs inner yoke and outside yoke, and the assembling of in-wheel motor just can be easy to carry out.
Be formed with the patchhole of axle on bottom surface sections and the cap respectively, thereby fix the inside of airtight outside yoke to main part and cap, thereby can play the in-to-in waterproof action of outside yoke.
Description of drawings
Fig. 1 is the one-sided half the longitudinal section of the in-wheel motor of example of the present invention with respect to axle.
[explanation of symbol]
1 in-wheel motor
5 wheel rims
9
13 coils
11 stator discs (coil support member)
15 outside yokes
17 inner yokes
27 main parts
29 caps
The specific embodiment
Below, with reference to Fig. 1 example of the present invention is elaborated.In-wheel motor 1 in this example is arranged in the wheel rim 5 of each wheel 3 of four wheels of electronlmobil, and the periphery of wheel rim 5 is equipped with tire 7, and with each wheel 3 of motorized motions.
In-wheel motor 1 has: be fixed on the stator discs 11 on the axle 9; Be fixed on the coil 13 of stator discs 11; Be configured in the outside yoke 15 of the outer circumferential side of coil 13; And the inside yoke 17. that is configured in coil 13 inboards
The hollow 19 that is used for distribution is formed on axle 9, passes the inner space of outside yoke 15 and is connected with coil 13 from the hollow 19 of axle 9 to the lead-in wire 21 of coil 13 power supplies.
Stator discs 11 as the coil support member is discoid, and the hole is formed on the central part of disk, and axle 9 runs through this hole.Stator discs 11 is fixed on the axle 9 by chock 12.
Coil 13 is cylindric, for example forms wire through the etching copper coin, is overlapped into multilayer after the insulation processing.An end of coil 13 is fixed on the periphery of stator discs 11.
Outside yoke 15 constitutes by main part 27 with through the cap 29 of screw retention at main part 27.Main part 27 is made up of cylindrical portion 27a cylindraceous that is arranged on coil 13 peripheries and bottom surface sections 27b.Cylindrical portion 27a is configured in the periphery of coil 13, and keeps at interval with coil 13.Interior all sides of cylindrical portion 27a are provided with magnetite 31, and magnetite 31 and coil 13 are in opposite directions and right.In addition, magnetite 31 be geomagnetic into a plurality of magnetic poles so that around direction have different magnetic poles.
The patchhole of axle 9 is formed on the middle body of bottom surface sections 27b, is inserted with axle 9 in the patchhole, and bottom surface sections 27b is fixed on the bearing 35 through screw 37.Also have, bottom surface sections 27b is configured in the medial surface of wheel rim 5, and is fixed on wheel rim 5 from the outside of wheel rim 5 with screw 33.
Cap 29 is discoid, and its central portion is formed with the patchhole of axle 9, inserts patchhole to axle 9, and is fixed on the bearing 41 with screw 43.Also have, the peripheral part of cap 29 is fixed on the main part 27a through screw 45.
Inner yoke 17 by: through coil 13 and magnetite 31 in opposite directions and right cylindric yoke main body 17a; And support portion 17b constitutes.Support portion 17b 18 is radial and is provided with a plurality ofly from the bottom, and bottom 18 is fixed on axle 9 the bearing 47 through screw 49.
Outside yoke 15, inner yoke 17 and axle 9 all are to be made up of magnetic substance, to form the path of magnetic flow.
Below, just in the example of the present invention, installation and action effect thereof in the wheel rim 5 of in-wheel motor 1 describe.
About the installation of in-wheel motor 1, at first insert axle to the cap 29 of outside yoke 15, and be fixed on the bearing 41 of axle 9 with screw 43.Secondly, be fixed on the stator discs that is fixed with coil 13 on it 11 on the axle 9, be fixed on the yoke body supports 17b of portion of inner yoke 17 on the bearing 47 through screw 49 again with chock 12.The main part 27 of outside yoke 15 is installed afterwards.When main part 27 is installed, be configured in the outer circumferential side of coil 13 to cylindrical portion 27a, and make axle connect the hole of bottom surface sections 27b, be fixed on the bearing 35 with screw 37 then.Bearing 35 is fixed on the axle 9.
Then, be fixed on the main part 27 of outside yoke 15 after the cap 29, be fixed on the bottom surface sections 27b of outside yoke 15 on the wheel rim 5 through screw 33 again through screw 45.
Driving about in-wheel motor 1; Coil 13 is given in 21 power supplies through going between; Magnetic field with respect between magnetite 31 and the inner yoke 17 just produces electromagnetic force; Therefore magnetite 31 rotates with respect to coil 13 with outside yoke 15 together, and the wheel rim 5 that is fixed on outside yoke 15 just is driven in rotation with respect to axle 9.And inner yoke 17 also rotates with outside yoke 15 synchronously.
The path of the magnetic flow of magnetite 31 is, from opposite directions and the loop of right inside yoke 17 through axle 9 and outside yoke.
According to this example, because inner yoke 17 is members separately with outside yoke 15, through being arranged separately in respectively on the axle 9, even the inboard of coil 13 is provided with the structure of inner yoke 17, also can easy mounting.
In this example, the magnetic flow that magnetite 31 acts on coil 13 is through by inner yoke 17, and the flux density that acts on coil 13 can be improved in the loop of the path that axle 9 and outside yoke 15 form therefore.Like this and do not have the occasion of inner yoke to compare, the torque that acts on the wheel rim 5 can be improved.
In this example, cap 29 and main part 27 make outside yoke 15 waterproof, thereby can prevent in outside yoke 15, to sneak into foreign matter, and simultaneously, water resistance is better.
Inner yoke 17 is the members that separate with outside yoke 15, and rotates freely with respect to axle 9 respectively, therefore stops after coil 13 energisings, producing generation current through being connected loads such as battery coil 13, thereby starting regenerative brake.In wheel rim 5 rotations, because the magnetic action that retracts magnetite on inner yoke 17, so suppressed the rotation of outside yoke 15, can play the effect of auxiliary braking for this reason.
The present invention is not limited to above-mentioned example, in the scope that does not break away from main idea of the present invention, can carry out all changes.For example: outside yoke 15 can not need airtight construction, and through forming air extractor vent to play inner colded effect.
Also can make cylindrical portion 27a and the bottom surface sections 27b of the main part 27 of outside yoke be member separately, fixing with screw etc. again.
Screw 37,43,45 can be respectively bolt also.

Claims (5)

1. in-wheel motor has:
Cylindric coil, all sides are inserted with axle in it;
The coil support member, it is fixed on axle and goes up and support coils;
Cylindric outside yoke, it is configured in the outer circumferential side of coil, and is fixed on the wheel rim;
Magnetite, it is fixed on the inner peripheral surface of outside yoke, and be configured in the outer peripheral face of coil in opposite directions and right;
Cylindric inner yoke, it is configured in interior all sides of coil, and be configured in the inner peripheral surface of coil in opposite directions and right;
Wherein,
Outside yoke and inner yoke rotate freely with respect to axle respectively and are disconnected from each other.
2. in-wheel motor as claimed in claim 1 is characterized in that,
Outside yoke has:
Main part, it comprises cylindrical portion and the bottom surface sections that is arranged on an end of cylindrical portion; And
Cap, it is arranged on the other end of cylindrical portion,
Be formed with the patchhole of axle on bottom surface sections and the cap respectively, thereby fix the inside of airtight outside yoke to main part and cap.
3. in-wheel motor as claimed in claim 1; It is characterized in that; Inner yoke comprises through coil and magnetite in opposite directions and right cylindric yoke main body, support portion and bottom, the support portion be from the bottom radial be provided with a plurality of, on the bearing that the bottom is fixed on spool.
4. in-wheel motor as claimed in claim 1 is characterized in that, outside yoke, and inner yoke and axle all are to be made up of magnetic substance, to form the path of magnetic flow.
5. an elec. vehicle is characterized in that having like claim 1 or 2 described in-wheel motors.
CN2011101833517A 2010-07-02 2011-07-01 In-wheel motor and electric vehicle Active CN102310763B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010152114A JP5562741B2 (en) 2010-07-02 2010-07-02 Wheel-in motor and electric vehicle
JP2010-152114 2010-07-02

Publications (2)

Publication Number Publication Date
CN102310763A true CN102310763A (en) 2012-01-11
CN102310763B CN102310763B (en) 2013-11-27

Family

ID=45424459

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011101833517A Active CN102310763B (en) 2010-07-02 2011-07-01 In-wheel motor and electric vehicle

Country Status (2)

Country Link
JP (1) JP5562741B2 (en)
CN (1) CN102310763B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105914976A (en) * 2015-02-25 2016-08-31 株式会社岛野 Generator for bicycle
CN106716793A (en) * 2014-09-04 2017-05-24 M-链接株式会社 Coreless rotating electric machine provided with stator including cylindrical coil and cooling method for same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6005886B1 (en) 2016-03-03 2016-10-12 株式会社エムリンク Iron-free rotating electric machine including a stator having a cylindrical coil and its cooling method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0717425A (en) * 1993-07-07 1995-01-20 Mitsubishi Heavy Ind Ltd Disc brake built-in wheel motor
CN2448589Y (en) * 2000-09-30 2001-09-19 江苏天宝电子集团有限公司 Electric driven hub
JP2004343905A (en) * 2003-05-16 2004-12-02 Toyota Motor Corp Wheel device with built-in motor
US20060138879A1 (en) * 2004-12-27 2006-06-29 Denso Corporation Electric wheel
CN2872718Y (en) * 2006-01-11 2007-02-21 徐州环海中意机电实业有限公司 Electric bi-rotary hub
CN201234197Y (en) * 2008-07-22 2009-05-06 戴杰 Permanent magnet brushless direct driving motor for single side axis automobile hub

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52146806A (en) * 1976-06-02 1977-12-06 Hitachi Ltd Rotor core of motor
DE10338659A1 (en) * 2003-08-22 2005-03-17 Magnet-Motor Gesellschaft Für Magnetmotorische Technik Mbh Electric drive unit for a motor vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0717425A (en) * 1993-07-07 1995-01-20 Mitsubishi Heavy Ind Ltd Disc brake built-in wheel motor
CN2448589Y (en) * 2000-09-30 2001-09-19 江苏天宝电子集团有限公司 Electric driven hub
JP2004343905A (en) * 2003-05-16 2004-12-02 Toyota Motor Corp Wheel device with built-in motor
US20060138879A1 (en) * 2004-12-27 2006-06-29 Denso Corporation Electric wheel
CN2872718Y (en) * 2006-01-11 2007-02-21 徐州环海中意机电实业有限公司 Electric bi-rotary hub
CN201234197Y (en) * 2008-07-22 2009-05-06 戴杰 Permanent magnet brushless direct driving motor for single side axis automobile hub

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106716793A (en) * 2014-09-04 2017-05-24 M-链接株式会社 Coreless rotating electric machine provided with stator including cylindrical coil and cooling method for same
CN106716793B (en) * 2014-09-04 2019-06-25 M-链接株式会社 The non iron-core rotating electric mechanism and its cooling means for having the stator comprising cylinder coil
CN105914976A (en) * 2015-02-25 2016-08-31 株式会社岛野 Generator for bicycle

Also Published As

Publication number Publication date
JP5562741B2 (en) 2014-07-30
JP2012016218A (en) 2012-01-19
CN102310763B (en) 2013-11-27

Similar Documents

Publication Publication Date Title
CN102315740B (en) In-wheel motor and electrically driven vehicle
EP3406019B1 (en) Wheel for a road vehicle
US9302577B2 (en) Halbach array electric motor with substantially contiguous electromagnetic cores
US9352645B2 (en) In-wheel motor and electrically driven vehicle
JP2017186006A (en) Motor and electric vehicle
CN102310763B (en) In-wheel motor and electric vehicle
JP2006062388A (en) Wheel drive for vehicle
JP2007060748A (en) Superconducting multishaft motor and vehicle equipped therewith
CN103121400B (en) In-wheel motor and elec. vehicle
KR100991072B1 (en) In-wheel motor for electric vehicle
CN202319875U (en) In-wheel motor and electric vehicle
CN201937416U (en) Permanent-magnetic shaft-hung type motor
CN208630263U (en) A kind of magnetic suspension wheel
CN105529848B (en) Wheel hub electric motor of electric vehicle and Electricmotor car wheel
WO2013162415A1 (en) Device for generating electrical energy from automobile wheels
US20230396138A1 (en) Electric disk motor for driving a wheel rim
CN201656683U (en) Vehicular hub permanent-magnet generator
JP2016054640A (en) Motor and electric vehicle
CN204810071U (en) Motor shaft of motor for electric motor car
US20230010171A1 (en) In wheel axial flux yokeless outrunner electric motor providing cables and cooling internally
WO2024029260A1 (en) In-wheel motor
KR100946649B1 (en) Motor having rotors arranged concentrically and driving apparatus having the motor
CN205075865U (en) Turnover vehicle for motor for electric motor car
JP2023175187A (en) Electric vehicle motor
KR101029690B1 (en) In?Wheel type driving device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: XINSIKAO ELECTRIC MOTOR CO., LTD.

Free format text: FORMER OWNER: SIKAO ELECTRIC MOTOR (SHANGHAI) CO., LTD.

Effective date: 20150710

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20150710

Address after: 314112 Jiashan City, Jiaxing province Huimin County Street, No., Jia Jia Road, building 3, 1 floor, 58

Patentee after: New math courses Electric Machine Co., Ltd

Address before: 201613 No. 38 Teng Teng Road, Songjiang District export processing zone, Shanghai, China

Patentee before: Shicoh Motor (Shanghai) Co., Ltd.