CN109455074A - A kind of integrated electric drive system - Google Patents
A kind of integrated electric drive system Download PDFInfo
- Publication number
- CN109455074A CN109455074A CN201811511151.8A CN201811511151A CN109455074A CN 109455074 A CN109455074 A CN 109455074A CN 201811511151 A CN201811511151 A CN 201811511151A CN 109455074 A CN109455074 A CN 109455074A
- Authority
- CN
- China
- Prior art keywords
- shaft
- output shaft
- gear
- motor output
- electric drive
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
Abstract
The present invention provides a kind of integrated electric drive systems, belong to electric vehicle engineering field.This integrated electric drive system mainly includes motor (6), retarder (20), differential mechanism (11) and cabinet (5) composition.Major function of the present invention is rotated by rotor (9), drive motor output shaft (1) rotation, transfer power to motor output shaft gear (29), using primary speed-down input gear (14), primary speed-down output gear shaft (16) is transmitted to double-reduction gear (25), differential assembly (20) are imparted power to by bolt (19), the effect of deceleration torque increase is realized simultaneously, left output axle shaft (33) are finally transferred power to by differential assembly (20), right output axle shaft (22), power is distributed to wheel.Motor output shaft (1) and differential assembly (20) coaxially, and using hollow structure, keep overall structure more compact in the present invention.
Description
Technical field
The invention belongs to electric powered motor drive assembly more particularly to a kind of integrated electric drive assembly.
Background technique
With the fast development of electric car industry, its part lightweight, the requirement of components integrated level and efficiency are got over
Come higher.Current most of motor in electric automobile and retarder are two independent components, pass through the side of flange face bolt, spline
Formula is attached and transmits power, and motor is offset to the side of retarder.This traditional power-driven system transmission efficiency
Low, repetitive structure is more, and volume is irregular, and outer dimension is big, is also unsatisfactory for light-weighted requirement, and motor is cantilever design, whole
The rigidity of transmission system and intensity are general, higher cost.The invention proposes a kind of new integrated electric drive systems, by closing
Removing the work office and optimization structure, can be obviously improved disadvantages mentioned above.
Summary of the invention
The purpose of the present invention is designing a kind of integrated electric drive system, transmission efficiency can be improved, reduce structure size
With weight, reduce cost, improve integrally-built intensity and rigidity, improve the performance of power drive system.
Of the invention can be realized by following technical proposal: by motor output shaft gear (29) by spline connection and
Circlip is fixed in motor rotation output shaft (1), and motor output shaft (1) is hollow structure, and left output axle shaft (33) may pass through
Motor output shaft (1) transmits power.The structure saves motor shaft material, improves space utilization rate, reduces rotary inertia, avoids
Hollow gear shaft is processed, technology difficulty is reduced, reduces cost.
In a kind of above-mentioned integrated electric drive system, motor output shaft (1) and differential assembly (20), left output
Semiaxis (33) is coaxial and left output axle shaft (33) passes through inside motor output shaft (1), keeps overall structure more compact, space
Occupancy is lower, more flexible in motor space location arrangements, while the structure can make box sizes smaller, and quality is more
Gently, to save cost.
In a kind of above-mentioned integrated electric drive system, motor stator (8), rotor (9), motor output shaft
(1), motor output shaft gear (29), differential assembly (20), primary speed-down input gear (14), primary speed-down output gear shaft
(16), double-reduction gear (25), differential support (15) share the same shell, and motor output shaft (1) and differential mechanism are total
Coaxially at (20), replace traditional offset placement, be obviously improved cabinet (5) with rigidity in the intensity of work, it is whole to improve system
The working performance of body.
In a kind of above-mentioned integrated electric drive system, left box body (10), right case (18) differential support (15),
Rear end cap (6) composition, left box body (10) is connect by bolt (31) with differential support (15), rear end cap (6) passes through bolt (7)
It being connect with left box body (10), right case (18) is connect by bolt (27) with left box body, and it is easy to disassemble, it is conducive to maintenance.
In a kind of above-mentioned integrated electric drive system, differential assembly (20) and differential support (15), right case
Body (18) is connected using bearing (26), (21), and adjusts bearing oil clearance and position by adjusting gasket (24), guarantees assembly essence
Degree, to improve the whole assembly precision of system.
Detailed description of the invention
A kind of Fig. 1: outside drawing of electric car integrated form drive system of the present invention.
A kind of Fig. 2: cross-sectional view of electric car integrated form drive system of the present invention.
Specific embodiment
Core of the invention is a kind of electric car integrated electric drive system, structure mainly include motor stator (8),
Rotor (9), motor output shaft (1), motor output shaft gear (29), primary speed-down input gear (14), primary speed-down are defeated
Gear shaft (16), double-reduction gear (25), differential assembly (20), left box body (10), right case (18), differential support out
(15), left output axle shaft (33), right output axle shaft (22) and rear end cap (6) composition, middle housing part includes left box body
(10), right case (18) differential support (15), rear end cap (6) composition composition.Major function of the present invention is to pass through rotor
(9) it rotates, drives motor output shaft (1) rotation, transfer power to motor output shaft gear (29), it is defeated using primary speed-down
Enter gear (14), primary speed-down output gear shaft (16) is transmitted to double-reduction gear (25), power is passed by bolt (19)
Differential assembly (20) are passed, while realizing the effect of deceleration torque increase, a left side is finally transferred power to by differential assembly (20)
Output axle shaft (33), right output axle shaft (22), power is distributed to wheel.
Claims (11)
1. a kind of integrated electric drive system mainly includes motor stator (8), rotor (9), motor output shaft (1), motor
Output shaft gear (29), primary speed-down input gear (14), primary speed-down output gear shaft (16), double-reduction gear (25),
Differential assembly (20), left box body (10), right case (18), differential support (15), left output axle shaft (33), right output axle shaft
(22) and rear end cap (6) forms, it is characterised in that: motor stator (8), rotor (9), motor output shaft (1), motor are defeated
Shaft gear (29), primary speed-down input gear (14), primary speed-down output gear shaft (16), double-reduction gear (25), poor out
Fast device assembly (20) is integrated in same cabinet (18), motor output shaft (1) and left output axle shaft (33), right output axle shaft (22)
Coaxially；The power that motor generates delivers torque to motor output shaft gear (29) by motor output shaft (1) and subtracts by level-one
Fast input gear (14), primary speed-down output gear shaft (16) are transmitted to double-reduction gear (25), will be moved by bolt (19)
Power passes to differential assembly (20), finally transfers power to left output axle shaft (33), right output axle shaft by differential mechanism (20)
(22)。
2. a kind of integrated electric drive system according to claim 1, which is characterized in that by motor output shaft gear (29)
It is directly integrated on motor output shaft (1) by spline structure.The delineation in bearing (12) of motor output shaft gear (29) one end
Position, one end are compressed by circlip (28).
3. a kind of integrated electric drive system according to claim 1, which is characterized in that motor output shaft (1) is hollow
Axis.
4. a kind of integrated electric drive system according to claim 1, which is characterized in that motor output shaft (1) and left case
Body (10) is supported using bearing (5), (12), and middle (center) bearing (5) inner ring becomes positioning shaft sleeve (4) and motor output shaft (1) by rotation
The shaft shoulder limit, bearing (5) outer ring by corrugated gasket (35) and rear end cap (6) generation pretightning force；The inner ring of bearing (12) is logical
The shaft shoulder structure and motor output shaft gear (29) boss for crossing motor output shaft (1) are fixed, and bearing (12) outer ring passes through left box body
(10) and differential support (15) is fixed.
5. a kind of integrated electric drive system according to claim 1, which is characterized in that housing parts include left box body
(10), right case (18) differential support (15), rear end cap (6) composition, left box body (10) pass through bolt (31) and differential mechanism branch
Support (15) connection, rear end cap (6) are connect by bolt (7) with left box body (10), and right case (18) passes through bolt (27) and left case
Body connection.
6. a kind of integrated electric drive system according to claim 1, which is characterized in that differential bearing (26) passes through difference
Fast device support (15) is fixed on left box body (10).
7. a kind of integrated electric drive system according to claim 1, which is characterized in that left output axle shaft (33) and motor
Output shaft (1) is coaxial and passes through inside motor output shaft (1).
8. a kind of integrated electric drive system according to claim 1, which is characterized in that left and right semiaxis is exported across motor
Axis (1) is attached with differential mechanism (11) using spline form, output power.
9. a kind of integrated electric drive system according to claim 1, which is characterized in that differential assembly (20) and differential
Device supports (15), right case (18) to connect using bearing (26), (21), and adjust bearing oil clearance and position by adjusting gasket (24)
It sets.
10. a kind of integrated electric drive system according to claim 1, which is characterized in that electric engine oil seal (11) and semiaxis
Oil sealing (30) (23) completely cuts off cabinet internal gear oil and outside.Axle-shaft oil seal (30) is mounted on motor output shaft (1) inside, passes through
Shaft shoulder positioning, another axle-shaft oil seal (23) are installed on right case (18).
11. a kind of integrated electric drive system according to claim 1, which is characterized in that rotation becomes rotor (2) and is mounted on electricity
On machine output shaft (1), one end becomes positioning shaft sleeve (4) positioning by rotation, and one end is compressed using circlip (1).Revolve set (3) installation
In on rear end cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511151.8A CN109455074A (en) | 2018-12-11 | 2018-12-11 | A kind of integrated electric drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511151.8A CN109455074A (en) | 2018-12-11 | 2018-12-11 | A kind of integrated electric drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109455074A true CN109455074A (en) | 2019-03-12 |
Family
ID=65612975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811511151.8A Withdrawn CN109455074A (en) | 2018-12-11 | 2018-12-11 | A kind of integrated electric drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109455074A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028023A (en) * | 2021-04-16 | 2021-06-25 | 四川建安工业有限责任公司 | Arrangement structure of electric drive speed reducer assembly |
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| US20030196842A1 (en) * | 2002-04-19 | 2003-10-23 | Takenori Hashimoto | Driving apparatus for vehicle |
| DE10314182A1 (en) * | 2002-03-29 | 2003-11-06 | Aisin Aw Co | Front engine rear drive type motor vehicle has drive shaft between output shaft and wheel drive shafts, moved based on operation of differential apparatus |
| DE102004003645A1 (en) * | 2004-01-24 | 2005-08-11 | Zf Friedrichshafen Ag | Portal axle drive for e.g. low-floor omnibus, has two stage gear reduction built through gear wheels that are assembled on same shaft, and split ring arranged between two wheels or between one wheel and output side of intermediate shaft |
| WO2007110204A1 (en) * | 2006-03-24 | 2007-10-04 | Getrag Innovations Gmbh | Drivetrain and production and installation method |
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| JP2012241820A (en) * | 2011-05-20 | 2012-12-10 | Ntn Corp | Electric vehicle reduction differential gear |
| CN103475152A (en) * | 2013-09-22 | 2013-12-25 | 襄阳群龙汽车部件股份有限公司 | Coaxial motor with one-stage speed-changing function |
| WO2014168034A1 (en) * | 2013-04-11 | 2014-10-16 | 日産自動車株式会社 | Vehicular in-wheel motor unit and method for assembling displacement-absorbing mechanism therefor |
| CN105790500A (en) * | 2016-04-23 | 2016-07-20 | 中国第汽车股份有限公司 | Integrated driving device for electric vehicle |
| CN106274463A (en) * | 2016-09-27 | 2017-01-04 | 北京宏瑞汽车科技股份有限公司 | A kind of integrated high efficiency electric drive assembly |
| DE102016223110B3 (en) * | 2016-11-23 | 2018-02-01 | Schaeffler Technologies AG & Co. KG | Drive device for a motor vehicle |
| US20180076687A1 (en) * | 2016-09-14 | 2018-03-15 | Borgwarner Inc. | Electric vehicle drive system |
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-
2018
- 2018-12-11 CN CN201811511151.8A patent/CN109455074A/en not_active Withdrawn
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10314182A1 (en) * | 2002-03-29 | 2003-11-06 | Aisin Aw Co | Front engine rear drive type motor vehicle has drive shaft between output shaft and wheel drive shafts, moved based on operation of differential apparatus |
| US20030196842A1 (en) * | 2002-04-19 | 2003-10-23 | Takenori Hashimoto | Driving apparatus for vehicle |
| DE102004003645A1 (en) * | 2004-01-24 | 2005-08-11 | Zf Friedrichshafen Ag | Portal axle drive for e.g. low-floor omnibus, has two stage gear reduction built through gear wheels that are assembled on same shaft, and split ring arranged between two wheels or between one wheel and output side of intermediate shaft |
| WO2007110204A1 (en) * | 2006-03-24 | 2007-10-04 | Getrag Innovations Gmbh | Drivetrain and production and installation method |
| JP2009121552A (en) * | 2007-11-13 | 2009-06-04 | Honda Motor Co Ltd | Motor power device |
| WO2012098957A1 (en) * | 2011-01-21 | 2012-07-26 | Ntn株式会社 | In-wheel motor drive device |
| JP2012241820A (en) * | 2011-05-20 | 2012-12-10 | Ntn Corp | Electric vehicle reduction differential gear |
| WO2014168034A1 (en) * | 2013-04-11 | 2014-10-16 | 日産自動車株式会社 | Vehicular in-wheel motor unit and method for assembling displacement-absorbing mechanism therefor |
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| US20180076687A1 (en) * | 2016-09-14 | 2018-03-15 | Borgwarner Inc. | Electric vehicle drive system |
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| DE102016223110B3 (en) * | 2016-11-23 | 2018-02-01 | Schaeffler Technologies AG & Co. KG | Drive device for a motor vehicle |
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| 秦建军, 蔚蕊, 王跃进: "电动车辆整体式驱动系统设计", 北京建筑工程学院学报, no. 01, pages 37 - 40 * |
| 范健文, 吴彤峰, 金国栋: "电动汽车电驱动系统结构方案分析", 机械制造, no. 11, pages 39 - 41 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028023A (en) * | 2021-04-16 | 2021-06-25 | 四川建安工业有限责任公司 | Arrangement structure of electric drive speed reducer assembly |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190312 |
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| WW01 | Invention patent application withdrawn after publication |