CN103887917A - Brushless motor provided with built-in differential mechanism - Google Patents
Brushless motor provided with built-in differential mechanism Download PDFInfo
- Publication number
- CN103887917A CN103887917A CN201210556497.6A CN201210556497A CN103887917A CN 103887917 A CN103887917 A CN 103887917A CN 201210556497 A CN201210556497 A CN 201210556497A CN 103887917 A CN103887917 A CN 103887917A
- Authority
- CN
- China
- Prior art keywords
- differential mechanism
- rotor
- built
- motor housing
- described rotor
- 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.)
- Pending
Links
Images
Landscapes
- Retarders (AREA)
Abstract
The invention discloses a brushless motor provided with a built-in differential mechanism. The brushless motor comprises a motor housing, and a stator and a rotor which are located and arranged in the motor housing. The rotor can be rotated relative to the stator. A pair of output half shafts which are arranged oppositely is further located and arranged in the motor housing. The differential mechanism is located and arranged in the rotor. The rotor can be used to drive the synchronous rotation of the differential mechanism, and the differential mechanism can be used to drive the rotation of the pair of output half shafts through a planetary gear so as to drive the rotation of vehicle wheels through the pair of output half shafts. The differential mechanism is installed into the rotor, so the diameter of the rotor iron core is increased correspondingly, the increase of the rotor iron core diameter is equivalent to the increase of the force arm, and the torque is in direct proportion to the force arm, so the torque of the brushless motor is also increased; and compared with a conventional brushless motor, the brushless motor provided with a built-in differential mechanism of the invention has advantages of high working efficiency, large torque, low noise and long service life.
Description
Technical field
The present invention relates to electric vehicle motor technical field, relate in particular to a kind of brushless electric machine of built-in differential mechanism.
Background technology
The drive part that on market, electro-tricycle and electric automobile use is now made up of brushless electric machine, gear box and differential mechanism three parts, the output shaft of brushless electric machine is undertaken necessarily than the deceleration of row by the gear of gear box, improve moment of torsion, and then by differential mechanism the left and right semiaxis output torque to back axle, drive the rotation of left and right wheels.The efficiency of whole like this drive system can compared with low, noise is large, reliability is low.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of brushless electric machine of built-in differential mechanism, this operating efficiency of brushless electric machine that is built-in with differential mechanism is high, moment of torsion is large, noise is low, long service life.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of brushless electric machine of built-in differential mechanism, comprise that motor housing and location are arranged at stator and the rotor in described motor housing, and described rotor can be with respect to described stator rotation; In described motor housing, also location is provided with differential mechanism and a pair of output axle shaft, and described rotor can drive described differential mechanism to rotate, and described differential mechanism is connected with this axle head to output axle shaft respectively.
As a further improvement on the present invention, described differential mechanism location is arranged on described internal rotor.
As a further improvement on the present invention, described rotor comprises that one is the rotor case of hollow circular cylinder shape, is coated with rotor core in the outside of described rotor case, is wound with along its axially extended rotor winding on the outside of described rotor core; Separately on the madial wall of described rotor case, be installed with multiple driving centers that extend towards its center, the plurality of driving center is circumferentially evenly distributed along described rotor case; Described differential mechanism is built in described rotor case, and described differential mechanism is connected one end of described rotor case dorsad with the plurality of driving center respectively.
As a further improvement on the present invention, described motor housing includes and is the forward and backward end cap being oppositely arranged, cover and be relatively set with a pair of clutch shaft bearing and a pair of the second bearing at described front and back ends, described differential mechanism supports rotation by this to clutch shaft bearing, and this is rotated the second bearings by this output axle shaft correspondence.
The invention has the beneficial effects as follows: this brushless electric machine comprises that motor housing and location are built in stator and the rotor in described motor housing, and described rotor can be with respect to described stator rotation; Separately in described motor housing, also location is provided with a pair of output axle shaft being oppositely arranged that is, and location is provided with differential mechanism in rotor, described rotor can drive described differential mechanism synchronously to rotate, and described differential mechanism can drive this to rotate output axle shaft by planetary gear, and then by this rotation to output axle shaft band motor car wheel; Due to differential mechanism is installed in rotor, the corresponding diameter that increases rotor core, the increase of rotor core diameter is equivalent to the arm of force and increases, and because moment of torsion is directly proportional to the arm of force, the moment of torsion of brushless electric machine also just increases like this; Compare with traditional brushless electric machine, the operating efficiency of brushless electric machine that is built-in with differential mechanism in the present invention is high, moment of torsion is large, noise is low, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
By reference to the accompanying drawings, make the following instructions:
1---motor housing 10---front end housing
11---rear end cap 12---clutch shaft bearing
13---second bearing 2---stator
3---rotor 30---rotor case
31---rotor core 32---driving center
4---differential mechanism 5---output axle shaft
Embodiment
The embodiment of the brushless electric machine to built-in differential mechanism of the present invention is elaborated with reference to the accompanying drawings.
The brushless electric machine of a kind of built-in differential mechanism of the present invention, comprises that motor housing 1 and location are arranged at stator 2 and the rotor 3 in described motor housing, and described rotor can be with respect to described stator rotation; In described motor housing, also location is provided with differential mechanism 4 and a pair of output axle shaft 5, and described rotor 3 can drive described differential mechanism 4 to rotate, and described differential mechanism is connected by planetary gear and this axle head to output axle shaft respectively.The rotation of described differential mechanism be able to drive this to rotate output axle shaft, and then passes through this to output axle shaft outputting power, drives vehicle wheel rotation.
In the present embodiment, described differential mechanism 4 location are arranged on described rotor 3 inside.
In the present embodiment, described rotor 3 comprises that one is the rotor case 30 of hollow circular cylinder shape, is coated with rotor core 31 in the outside of described rotor case, is wound with along its axially extended rotor winding on the outside of described rotor core 31; Separately on the madial wall of described rotor case, be installed with multiple driving centers 32 that extend towards its center, the plurality of driving center is circumferentially evenly distributed along described rotor case; Described differential mechanism 4 is built in described rotor case, and described differential mechanism is connected one end of described rotor case dorsad with the plurality of driving center 32 respectively.Due to differential mechanism 4 is installed in rotor case 30, the corresponding diameter that increases rotor core, the increase of rotor core diameter is equivalent to the arm of force and increases, and because moment of torsion is directly proportional to the arm of force, the moment of torsion of brushless electric machine also just increases like this.
In the present embodiment, described motor housing 1 includes and is the front end housing 10, the rear end cap 11 that are oppositely arranged, cover and be relatively set with a pair of clutch shaft bearing 12 and a pair of the second bearing 13 at described front and back ends, described differential mechanism 4 supports rotation by this to clutch shaft bearing 12, and this supports rotation by this to the second bearing 13 to output axle shaft 5 correspondences.
Claims (4)
1. a brushless electric machine for built-in differential mechanism, comprises that motor housing (1) and location are arranged at stator (2) and the rotor (3) in described motor housing, and described rotor can be with respect to described stator rotation; It is characterized in that: in described motor housing, also location is provided with differential mechanism (4) and a pair of output axle shaft (5), described rotor (3) can drive described differential mechanism (4) to rotate, and described differential mechanism is connected with this axle head to output axle shaft respectively.
2. the brushless electric machine of built-in differential mechanism according to claim 1, is characterized in that: described differential mechanism (4) location is arranged on described rotor (3) inside.
3. the brushless electric machine of built-in differential mechanism according to claim 2, it is characterized in that: described rotor (3) comprises that one is the rotor case (30) of hollow circular cylinder shape, be coated with rotor core (31) in the outside of described rotor case, on the outside of described rotor core (31), be wound with along its axially extended rotor winding; Separately on the madial wall of described rotor case, be installed with multiple driving centers (32) that extend towards its center, the plurality of driving center is circumferentially evenly distributed along described rotor case; Described differential mechanism (4) is built in described rotor case, and described differential mechanism is connected one end of described rotor case dorsad with the plurality of driving center (32) respectively.
4. the brushless electric machine of built-in differential mechanism according to claim 1, it is characterized in that: described motor housing (1) includes and is the forward and backward end cap (10,11) being oppositely arranged, cover and be relatively set with a pair of clutch shaft bearing (12) and a pair of the second bearing (13) at described front and back ends, described differential mechanism (4) supports rotation by this to clutch shaft bearing (12), and this supports rotation by this to the second bearing (13) to output axle shaft (5) is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556497.6A CN103887917A (en) | 2012-12-19 | 2012-12-19 | Brushless motor provided with built-in differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556497.6A CN103887917A (en) | 2012-12-19 | 2012-12-19 | Brushless motor provided with built-in differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103887917A true CN103887917A (en) | 2014-06-25 |
Family
ID=50956671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210556497.6A Pending CN103887917A (en) | 2012-12-19 | 2012-12-19 | Brushless motor provided with built-in differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103887917A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183580A (en) * | 2018-02-08 | 2018-06-19 | 西安六环传动新能源科技有限公司 | A kind of permanent magnet synchronous motor of built-in spur-gear differential |
| CN112389178A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Axle assembly and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1209597A (en) * | 1967-05-19 | 1970-10-21 | Internat Res And Dev Company L | Electric motor drive for a vehicle |
| US20050245341A1 (en) * | 2004-01-29 | 2005-11-03 | Magnet-Motor Gesellschaft Fuer Magnetmotorische Technik Mbh | Electric drive unit for motor vehicles |
| CN101707412A (en) * | 2009-11-13 | 2010-05-12 | 北京科技大学 | Driving motor with function of differential speed output |
| CN201985686U (en) * | 2011-05-04 | 2011-09-21 | 李领领 | Dual-output motor transmission integrated system |
| CN202309370U (en) * | 2011-11-08 | 2012-07-04 | 东阳市东政电机有限公司 | Dual-output shaft motor |
| CN203014575U (en) * | 2012-12-19 | 2013-06-19 | 耀马车业(中国)有限公司 | Brushless motor with built-in differential mechanism |
-
2012
- 2012-12-19 CN CN201210556497.6A patent/CN103887917A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1209597A (en) * | 1967-05-19 | 1970-10-21 | Internat Res And Dev Company L | Electric motor drive for a vehicle |
| US20050245341A1 (en) * | 2004-01-29 | 2005-11-03 | Magnet-Motor Gesellschaft Fuer Magnetmotorische Technik Mbh | Electric drive unit for motor vehicles |
| CN101707412A (en) * | 2009-11-13 | 2010-05-12 | 北京科技大学 | Driving motor with function of differential speed output |
| CN201985686U (en) * | 2011-05-04 | 2011-09-21 | 李领领 | Dual-output motor transmission integrated system |
| CN202309370U (en) * | 2011-11-08 | 2012-07-04 | 东阳市东政电机有限公司 | Dual-output shaft motor |
| CN203014575U (en) * | 2012-12-19 | 2013-06-19 | 耀马车业(中国)有限公司 | Brushless motor with built-in differential mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183580A (en) * | 2018-02-08 | 2018-06-19 | 西安六环传动新能源科技有限公司 | A kind of permanent magnet synchronous motor of built-in spur-gear differential |
| CN112389178A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Axle assembly and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9011285B2 (en) | Drive arrangement | |
| CN101282071A (en) | Permanent magnetism synchronous wheel hub motor for directly driving electric vehicle wheel | |
| CN201663523U (en) | Brushless permanent-magnetic direct-current motor for electric automobiles | |
| CN206237248U (en) | A kind of permanent magnet synchronous type electric vehicle hub | |
| CN101692591B (en) | Split turbocharged speed reducer differential electric driver | |
| CN203014575U (en) | Brushless motor with built-in differential mechanism | |
| CN201985686U (en) | Dual-output motor transmission integrated system | |
| CN102946167B (en) | Planetary transmission combination motor for electric vehicle | |
| CN206237216U (en) | A kind of permagnetic synchronous motor mounting structure of electric vehicle hub | |
| CN103887917A (en) | Brushless motor provided with built-in differential mechanism | |
| CN203562882U (en) | Three-stage-transmission brushless motor easy to assemble | |
| CN103904845A (en) | Direct driving type motor suite and electromobile | |
| CN102332778A (en) | Through-shaft outer-rotor built-in motor | |
| CN106655672A (en) | Permanent magnet double-stator-rotor high-torque-density hub motor device | |
| CN205178739U (en) | A vehicle that is used for vehicle driver's wheel limit motor element and uses wheel limit motor element | |
| CN201490832U (en) | Differential mechanism assembly of brushless motor of electric vehicle | |
| Fu et al. | A novel axial-flux electric machine for in-wheel gearless drive in plug-in hybrid electric vehicles | |
| CN202602457U (en) | A brushless in-wheel motor with a built-in rotor | |
| CN201388111Y (en) | Permanent magnet motor with built-in compensating gear | |
| CN103607070A (en) | Three-level deceleration brushless motor | |
| CN103707757B (en) | Dynamic drive pallet truck and dynamic drive wheel thereof | |
| CN102570713B (en) | Brushless planetary speed reduction hub motor | |
| CN203522432U (en) | Wheel hub motor | |
| CN201956872U (en) | Stepping motor | |
| CN203739604U (en) | Gear motor for battery electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140625 |