CN203014575U - Brushless motor with built-in differential mechanism - Google Patents
Brushless motor with built-in differential mechanism Download PDFInfo
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- CN203014575U CN203014575U CN 201220706364 CN201220706364U CN203014575U CN 203014575 U CN203014575 U CN 203014575U CN 201220706364 CN201220706364 CN 201220706364 CN 201220706364 U CN201220706364 U CN 201220706364U CN 203014575 U CN203014575 U CN 203014575U
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- differential mechanism
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- motor housing
- described rotor
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Abstract
The utility model discloses a brushless motor with a built-in differential mechanism. The brushless motor comprises a motor housing, a stator and a rotor which are positioned in the motor housing, and the rotor can rotate relative to the stator; a pair of oppositely arranged output half shafts are also positioned in the motor housing, the differential mechanism is positioned in the rotor, the rotor can drive the differential mechanism to rotate synchronously, and the differential mechanism can drive the pair of output half shafts to rotate through planetary gears, and drives rotation of wheels through the pair of output half shafts; and since the differential mechanism is installed in the rotor, the diameter of a rotor core is correspondingly increased, the increase of the diameter of the rotor core is equivalent to an increase of the arm of force, and since torque is in direct proportion to the arm of force, the torque of the brushless motor is also increased. Compared with a conventional brushless motor, the brushless motor with a built-in differential mechanism has the advantages of high work efficiency, large torque, low noise, and long service life.
Description
Technical field
The utility model relates to the electric vehicle motor technical field, relates 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 now is comprised of brushless electric machine, gear box and differential mechanism three parts, the output shaft of brushless electric machine is undertaken necessarily than the deceleration that is listed as by the gear of gear box, improve moment of torsion, and then by the left and right semiaxis output torque of differential mechanism to back axle, drive the rotation of left and right wheels.The efficient of whole like this drive system can be lower, noise is large, reliability is low.
Summary of the invention
In order to overcome defects, the utility model provides a kind of brushless electric machine of built-in differential mechanism, and this high efficiency, moment of torsion that is built-in with the brushless electric machine of differential mechanism is large, noise is low, long service life.
The utility model 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, described rotor can be with respect to described stator rotation; Also the location is provided with differential mechanism and a pair of output axle shaft in described motor housing, and described rotor can drive described differential mechanism and rotate, and described differential mechanism is connected with this axle head to output axle shaft respectively.
As further improvement of the utility model, described differential mechanism is located and is arranged on described internal rotor.
As further improvement of the utility model, 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 on the outside of described rotor core along its axially extended rotor winding; Separately be installed with a plurality of driving centers that extend towards its center on the madial wall of described rotor case, these a plurality of driving centers are circumferentially evenly distributed along described rotor case; Described differential mechanism is built in described rotor case, and described differential mechanism respectively with these a plurality of driving centers dorsad an end of described rotor case be connected.
As further improvement of the utility model, described motor housing includes and is the forward and backward end cap that is oppositely arranged, cover at described front and back ends and be relatively set with a pair of clutch shaft bearing and a pair of the second bearing, 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 beneficial effects of the utility model are: 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; Another also the location in described motor housing is provided with a pair of output axle shaft that is oppositely arranged that is, and the location is provided with differential mechanism in rotor, described rotor can drive described differential mechanism and synchronously rotate, and described differential mechanism can drive this by planetary gear output axle shaft is rotated, 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, rotor core diameter increase and are equivalent to the arm of force and increase, and are directly proportional to the arm of force due to moment of torsion, and the moment of torsion of brushless electric machine is also with regard to increase like this; Compare with traditional brushless electric machine, high efficiency, the moment of torsion that is built-in with the brushless electric machine of differential mechanism in the utility model is large, noise is low, long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
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
With reference to the accompanying drawings the embodiment of the brushless electric machine of built-in differential mechanism of the present utility model is elaborated.
The brushless electric machine of a kind of built-in differential mechanism of the present utility model 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; Also the location is provided with differential mechanism 4 and a pair of output axle shaft 5 in described motor housing, and described rotor 3 can drive described differential mechanism 4 and 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 output axle shaft is rotated, and then passes through this to the 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 on the outside of described rotor core 31 along its axially extended rotor winding; Separately be installed with a plurality of driving centers 32 that extend towards its center on the madial wall of described rotor case, these a plurality of driving centers are circumferentially evenly distributed along described rotor case; Described differential mechanism 4 is built in described rotor case, and described differential mechanism respectively with these a plurality of driving centers 32 dorsad an end of described rotor case be connected.Due to differential mechanism 4 is installed in rotor case 30, the corresponding diameter that increases rotor core, rotor core diameter increase and are equivalent to the arm of force and increase, and are directly proportional to the arm of force due to moment of torsion, and the moment of torsion of brushless electric machine is also with regard to increase like this.
In the present embodiment, described motor housing 1 includes and is front end housing 10, the rear end cap 11 that is oppositely arranged, cover at described front and back ends and be relatively set with a pair of clutch shaft bearing 12 and a pair of the second bearing 13, 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. the brushless electric machine of a built-in differential mechanism, comprise 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: also the location is provided with differential mechanism (4) and a pair of output axle shaft (5) in described motor housing, and described rotor (3) can drive described differential mechanism (4) and 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, be wound with on the outside of described rotor core (31) along its axially extended rotor winding; Separately be installed with a plurality of driving centers (32) that extend towards its center on the madial wall of described rotor case, these a plurality of driving centers are circumferentially evenly distributed along described rotor case; Described differential mechanism (4) is built in described rotor case, and described differential mechanism respectively with these a plurality of driving centers (32) dorsad an end of described rotor case be connected.
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) that is oppositely arranged, cover at described front and back ends and be relatively set with a pair of clutch shaft bearing (12) and a pair of the second bearing (13), 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 |
|---|---|---|---|
| CN 201220706364 CN203014575U (en) | 2012-12-19 | 2012-12-19 | Brushless motor with built-in differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706364 CN203014575U (en) | 2012-12-19 | 2012-12-19 | Brushless motor with built-in differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014575U true CN203014575U (en) | 2013-06-19 |
Family
ID=48606131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220706364 Expired - Lifetime CN203014575U (en) | 2012-12-19 | 2012-12-19 | Brushless motor with built-in differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203014575U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701253A (en) * | 2013-12-04 | 2014-04-02 | 张�杰 | Permanent-magnet motor for electric motor direct-drive axle |
| CN103887917A (en) * | 2012-12-19 | 2014-06-25 | 耀马车业(中国)有限公司 | Brushless motor provided with built-in differential mechanism |
| CN104052189A (en) * | 2013-11-26 | 2014-09-17 | 马力 | Rotor structure of differential motor for electric vehicle |
| CN112928859A (en) * | 2021-01-21 | 2021-06-08 | 清研众智测试技术（天津）有限公司 | Differential function rotor and driving motor |
-
2012
- 2012-12-19 CN CN 201220706364 patent/CN203014575U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887917A (en) * | 2012-12-19 | 2014-06-25 | 耀马车业(中国)有限公司 | Brushless motor provided with built-in differential mechanism |
| CN104052189A (en) * | 2013-11-26 | 2014-09-17 | 马力 | Rotor structure of differential motor for electric vehicle |
| CN103701253A (en) * | 2013-12-04 | 2014-04-02 | 张�杰 | Permanent-magnet motor for electric motor direct-drive axle |
| CN112928859A (en) * | 2021-01-21 | 2021-06-08 | 清研众智测试技术（天津）有限公司 | Differential function rotor and driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |