CN202716729U - Integrated type power driving device of motor and speed changing box for electric vehicle - Google Patents
Integrated type power driving device of motor and speed changing box for electric vehicle Download PDFInfo
- Publication number
- CN202716729U CN202716729U CN 201220294052 CN201220294052U CN202716729U CN 202716729 U CN202716729 U CN 202716729U CN 201220294052 CN201220294052 CN 201220294052 CN 201220294052 U CN201220294052 U CN 201220294052U CN 202716729 U CN202716729 U CN 202716729U
- Authority
- CN
- China
- Prior art keywords
- motor
- driving device
- diff
- differential
- planetary
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
Abstract
The utility model discloses an integrated type power driving device of a motor and a speed changing box for an electric vehicle. The integrated type power driving device comprises a motor, a differential, a left planetary-gear speed reducing mechanism and a right planetary-gear speed reducing mechanism, wherein a rotor bracket of the motor is of a hollow structure; the differential is positioned in the rotor bracket; a shell of the differential is connected with the inner side of the rotor bracket; two output shafts of the differential are respectively and coaxially connected with a solar wheel of the planetary-gear speed reducing mechanism at the same side; planetary-carrier central shafts of the two planetary-gear speed reducing mechanisms are respectively connected with vehicle semiaxles at the same side; and the vehicle semiaxles are connected with wheel hubs. The integrated type power driving device disclosed by the utility model has the advantages that the structure is compact, the space is effectively optimized, the radial size can not be excessively large due to integration of the differential and a rotor, and the axial size is greatly reduced due to use of the planetary-gear speed reducing mechanisms; simultaneously, the high-speed and low-torque differential is used, and the placement of the differential into the rotor bracket of the motor is ensured; and the length of each output shaft is shorter, so that the rigidity is ensured, and the vibrating possibility of a dual-mass system is avoided. The integrated type power driving device is applicable to the high-rotating-speed and middle-low-torque motor.
Description
Technical field
The utility model is relevant with the electric propulsion system in power drive system field, specifically belongs to a kind of motor and change speed gear box integrated electric force driving device, is applicable to the motor of low moment of torsion (rotating speed surpasses 8000rpm, and moment of torsion is lower than 400Nm) in the high rotating speed.
Background technology
The electric propulsion system of electronlmobil mainly comprises wheel hub motor and two kinds of forms of concentrated motor, wherein concentrate motor to generally comprise motor, speed reduction gearing and diff, motor and speed reduction gearing are by linking to each other in conjunction with end face, and speed reduction gearing and diff are installed in the gear box casing jointly.Compare with orthodox car, said system only is that original driving engine is replaced with motor.Consider the particularity of electric machine structure and the minimizing of a change speed gear box gear (general gear, two gears of minority are also arranged), such structural arrangement spatially has optimizable leeway, can make whole electric propulsion system structure compacter by motor and the integrated design of driving system (change speed gear box, diff etc.).
The most simply optimizing structure is that housing with motor and change speed gear box carries out integrated design, and its positioned opposite relation does not change, and is the utility model of 201020142510.X such as application number, drive motor and change speed gear box common sparing housing.
Secondly, the part system removes speed reduction gearing, adopt wheel hub motor to add the version of diff, wherein diff can be positioned at wheel hub motor (be such as application number 201120056446.8 and 200920186125.2 utility model), also can with wheel hub motor parallel place and the diff shell by mechanical connection rotor (be such as application number 01216899.8 utility model).Former structure is comparatively simple, but because what use is traditional diff, and wheel hub motor has the characteristic of low speed and large torque, so that small product size is larger, and may have the problem of crossing ability after the entrucking; Though the latter is progressive to some extent than the former, but the rotor structure more complicated of motor, and difficulty of processing is also larger.
In addition, also have the part system to keep speed reduction gearing, and use planetary gear reducing mechanism.Be 02229004.4 utility model such as application number, motor at first passes through planetary gear speed-reduction, and then through the diff differential, its core still is the design of integrated and motor-hollow axle.And application number is in 200810021526.2 the application for a patent for invention, motor at first passes through the diff differential, pass through again planetary gear speed-reduction, owing to having added speed reduction gearing, therefore electric powerplant can not use the wheel hub motor of low-speed big, and make the rotating speed of motor can be higher, torque demand be relatively low, and (AC/DC, synchronous/asynchronous etc.) are more flexible in the selection of motor particular type; And this structure relative complex, motor is slender type, adopt simultaneously hollow shaft structure, transmission shaft is more elongated axle, for two quality systems that motor and vehicle form, relatively elongated adapter shaft rigidity is less, in the full-throttle starting process of actual vehicle and when switching to short-circuit mode, easily cause the vibration of driving system, transmission shaft is meticulous may to cause this vibration to eliminate by control device.
The utility model content
Technical problem to be solved in the utility model provides a kind of Motor for Electric Automobile and change speed gear box integrated electric force driving device, can optimize the position relationship of motor, change speed gear box and diff, avoids the vibration of driving system.
For solving the problems of the technologies described above, the Motor for Electric Automobile that the utility model provides and change speed gear box integrated electric force driving device, comprise motor, diff, left lateral star gear reduction and right lateral star gear reduction, the rotor field spider of described motor is hollow structure, described diff is arranged in rotor field spider, the housing of diff is connected with the inboard of rotor field spider, the coaxial connection of sun wheel of the left output shaft of diff and left lateral star gear reduction, the coaxial connection of sun wheel of right output shaft and right lateral star gear reduction, the pinion carrier center shaft of two planetary gear reducing mechanisms is connected with the vehicle semiaxle of homonymy respectively, and vehicle semiaxle connects wheel nave.
Wherein, the gear ring of the shell of described actuating device, electric machine casing and two planetary gear reducing mechanisms is structure as a whole.
In said structure, described motor stator is installed on the inboard of electric machine casing.
Preferably, the left and right output shaft of described pinion carrier center shaft and diff, the spigot shaft coaxle of rotor.
Wherein, the output shaft of described diff is by the bearings that is installed on the electric machine casing.
The utility model configuration speed reduction gearing, make actuating device be applicable to the motor of low moment of torsion in the present high rotating speed, and compact overall structure, so that the radial dimension on the space can not become excessive because of the integrated of diff and rotor, axial dimension then reduces greatly owing to using planetary gear reducing mechanism.In addition, motor passes through first the diff differential, slows down through change-speed box again, effectively optimize the space, use simultaneously the diff of the little moment of torsion of high speed, suitably overstriking of output shaft, rigidity can obtain the actv. guarantee, has avoided the vibration possibility of two quality systems from structure.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
Wherein description of reference numerals is as follows:
1 is motor stator; 2 is rotor; 3 is diff; 4 is bearing; 5 is sun wheel; 6 is pinion carrier; 7 is gear ring; 8 is shell.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the utility model is described in further detail.
Motor for Electric Automobile and change speed gear box integrated electric force driving device, as shown in drawings, comprise motor stator 1, electronics rotor 2, diff 3, left lateral star gear reduction and right lateral star gear reduction, wherein planetary gear reducing mechanism comprises sun wheel 5, satellite gear, pinion carrier 6 and gear ring 7.The shell 8 of this actuating device is structure as a whole with the gear ring 7 of electric machine casing and two planetary gear reducing mechanisms.Described motor stator 1 is installed on the inboard of electric machine casing by laser welding.The rotor field spider of motor is hollow structure, diff 3 is arranged in rotor field spider, and the housing of diff 3 is connected (preferred integrally casting) with the inboard of rotor field spider, 5 coaxial connections of sun wheel of the left output shaft of diff 3 and left lateral star gear reduction, 5 coaxial connections of sun wheel of right output shaft and right lateral star gear reduction, pinion carrier 6 center shafts of two planetary gear reducing mechanisms are as the mouth of whole actuating device, be connected with the vehicle semiaxle of homonymy respectively, vehicle semiaxle connects wheel nave again and drives wheel.
The left and right output shaft of the center shaft of described pinion carrier 6 and diff 3, the spigot shaft coaxle of rotor.The output shaft of described diff 3 is supported by the bearing 4 that is installed on the electric machine casing.
At present, diff volume on the common vehicle is larger, it is positioned at the mouth of change speed gear box, be usually operated under the operating mode of slow speed of revolution (generally being no more than 2000rpm) and high pulling torque (can reach 3000Nm even higher), and the motor device of low moment of torsion in some high rotating speeds, its rotating speed surpasses 8000rpm usually, moment of torsion is lower than 400Nm, common diff can't satisfy the differential requirement of this motor at all, therefore the diff 3 in the utility model adopts particular design and manufacturing, it can be operated in high rotating speed (motor may reach 10000rpm even higher), the operating mode of little moment of torsion (general low speed torque can not surpass 400Nm), the diff of this high rotating speed and little torque characteristics can be little more many than the volume of traditional diff, thereby so that the radial dimension of electric powerplant can not increase because diff is loaded on motor internal, can not have influence on the crossing ability of vehicle.
Structure as shown in drawings, speed reduction gearing adopts the one pole planetary wheel, and the reduction ratio computing formula is
I=1+z
Gear ring/ z
Sun wheel
For the one pole planetary gear construction, the ratio of number of teeth of gear ring and sun wheel can be accomplished more than 5, can reach more than 6 according to structure total reduction gear ratio among the figure.
This motor and change speed gear box integrated electric force driving device are when work, rotor 2 rotations, the moment of torsion that motor sends is delivered to diff 3 shells that are attached thereto by rotor rack, arrive two ends, the left and right sides and the coaxial sun wheel that is connected 5 of diff output shaft through difference output torque behind the differential 3 device differentials, sun wheel is exported by pinion carrier 6 after increasing torsion effect by the planetary gear system reduction of speed, drives vehicle by semiaxis again.
Abovely by specific embodiment the utility model is had been described in detail, this embodiment only is preferred embodiment of the present utility model, and it is not that the utility model is limited.In the situation that do not break away from the utility model principle, equivalent replacement and improvement that those skilled in the art makes the composition of speed reduction gearing and the layout of actuating device etc. all should be considered as in the technology category that the utility model is protected.
Claims (5)
1. a Motor for Electric Automobile and change speed gear box integrated electric force driving device, comprise motor, diff, left lateral star gear reduction and right lateral star gear reduction, it is characterized in that: the rotor field spider of described motor is hollow structure, described diff is arranged in rotor field spider, the housing of diff is connected with the inboard of rotor field spider, the coaxial connection of sun wheel of the left output shaft of diff and left lateral star gear reduction, the coaxial connection of sun wheel of right output shaft and right lateral star gear reduction, the pinion carrier center shaft of two planetary gear reducing mechanisms is connected with the vehicle semiaxle of homonymy respectively, and vehicle semiaxle connects wheel nave.
2. Motor for Electric Automobile according to claim 1 and change speed gear box integrated electric force driving device, it is characterized in that: the gear ring of the shell of described actuating device, electric machine casing and two planetary gear reducing mechanisms is structure as a whole.
3. Motor for Electric Automobile according to claim 1 and change speed gear box integrated electric force driving device, it is characterized in that: described motor stator is installed on the inboard of electric machine casing.
4. Motor for Electric Automobile according to claim 1 and change speed gear box integrated electric force driving device is characterized in that: the left and right output shaft of described pinion carrier center shaft and diff, the spigot shaft coaxle of rotor.
5. Motor for Electric Automobile according to claim 1 and change speed gear box integrated electric force driving device, it is characterized in that: the output shaft of described diff is by the bearings that is installed on the electric machine casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294052 CN202716729U (en) | 2012-06-21 | 2012-06-21 | Integrated type power driving device of motor and speed changing box for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294052 CN202716729U (en) | 2012-06-21 | 2012-06-21 | Integrated type power driving device of motor and speed changing box for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202716729U true CN202716729U (en) | 2013-02-06 |
Family
ID=47618563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220294052 Expired - Fee Related CN202716729U (en) | 2012-06-21 | 2012-06-21 | Integrated type power driving device of motor and speed changing box for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202716729U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781378A (en) * | 2016-08-26 | 2018-03-09 | 东风德纳车桥有限公司 | A kind of motor differential assembly |
| CN111086376A (en) * | 2018-10-23 | 2020-05-01 | 源捷公司 | Powertrain assembly |
| CN111520453A (en) * | 2020-03-25 | 2020-08-11 | 湖南农业大学 | Embedded differential mechanism rotor |
| CN112092540A (en) * | 2020-08-24 | 2020-12-18 | 北汽福田汽车股份有限公司 | Electric drive axle assembly and vehicle |
| CN112677760A (en) * | 2019-10-18 | 2021-04-20 | 比亚迪股份有限公司 | Axle assembly and vehicle |
| CN113565941A (en) * | 2021-06-01 | 2021-10-29 | 浙江盘毂动力科技有限公司 | High integrated structure of differential mechanism and motor |
| CN114454712A (en) * | 2022-02-23 | 2022-05-10 | 浙江吉利控股集团有限公司 | Automobile power system and automobile |
| CN115214329A (en) * | 2022-07-08 | 2022-10-21 | 广州汽车集团股份有限公司 | Drive assembly and vehicle |
| CN116494742A (en) * | 2023-05-17 | 2023-07-28 | 湖北万润新能源科技股份有限公司 | Driving device and motor driving method |
| WO2024008719A1 (en) * | 2022-07-06 | 2024-01-11 | Zf Friedrichshafen Ag | Electric drive arrangement for a vehicle |
-
2012
- 2012-06-21 CN CN 201220294052 patent/CN202716729U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781378A (en) * | 2016-08-26 | 2018-03-09 | 东风德纳车桥有限公司 | A kind of motor differential assembly |
| CN111086376A (en) * | 2018-10-23 | 2020-05-01 | 源捷公司 | Powertrain assembly |
| CN112677760A (en) * | 2019-10-18 | 2021-04-20 | 比亚迪股份有限公司 | Axle assembly and vehicle |
| CN111520453A (en) * | 2020-03-25 | 2020-08-11 | 湖南农业大学 | Embedded differential mechanism rotor |
| CN112092540A (en) * | 2020-08-24 | 2020-12-18 | 北汽福田汽车股份有限公司 | Electric drive axle assembly and vehicle |
| CN113565941A (en) * | 2021-06-01 | 2021-10-29 | 浙江盘毂动力科技有限公司 | High integrated structure of differential mechanism and motor |
| CN114454712A (en) * | 2022-02-23 | 2022-05-10 | 浙江吉利控股集团有限公司 | Automobile power system and automobile |
| WO2024008719A1 (en) * | 2022-07-06 | 2024-01-11 | Zf Friedrichshafen Ag | Electric drive arrangement for a vehicle |
| CN115214329A (en) * | 2022-07-08 | 2022-10-21 | 广州汽车集团股份有限公司 | Drive assembly and vehicle |
| CN116494742A (en) * | 2023-05-17 | 2023-07-28 | 湖北万润新能源科技股份有限公司 | Driving device and motor driving method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202716729U (en) | Integrated type power driving device of motor and speed changing box for electric vehicle | |
| US9255633B2 (en) | Drive arrangement | |
| CN102555766A (en) | Hybrid transmission assembly | |
| CN202507926U (en) | Pure-electromobile driving device | |
| CN201549972U (en) | Hub motor system and vehicle including same | |
| CN101692591B (en) | Split turbocharged speed reducer differential electric driver | |
| CN206664249U (en) | A kind of electric automobile gear system | |
| CN107972461A (en) | A kind of pure electric automobile bi-motor coupler | |
| CN103625263A (en) | Dual-mode hybrid power system based on dual-rotor motor and planetary gear mechanism | |
| CN207257337U (en) | A kind of electric axle assembly | |
| CN201511804U (en) | Improved power synthesizing box structure of hybrid electric vehicle | |
| CN203142396U (en) | Electric drive assembly of vehicle | |
| CN209079653U (en) | One kind two keeps off coaxial-type electric drive axle | |
| CN103978882A (en) | Power transmission device of hybrid power vehicle | |
| CN213291965U (en) | Pure electric vehicles bi-motor drive axle assembly | |
| CN203681249U (en) | Double-mode hybrid power system based on dual-rotor motor and planet gear mechanism | |
| CN103904845A (en) | Direct driving type motor suite and electromobile | |
| CN202264634U (en) | Ordinary gear speed-reducing type internal wheel driving device with power switching device | |
| WO2020093302A1 (en) | Hybrid power module and vehicle | |
| CN109624681B (en) | Double-motor power transmission system for electric automobile | |
| CN212604505U (en) | Coaxial two-gear planetary row electric drive axle for automobile | |
| CN108180232A (en) | Three shaft space parallel connection clutch assemblies | |
| CN211820616U (en) | Three-gear hybrid transmission adopting double-long-wheelbase motor | |
| CN204674762U (en) | The mid-moment driving system that a kind of diaxon three grades slows down | |
| CN202062998U (en) | Integrated single-oblique-arm deceleration type rear-wheel hub electric--driving automobile power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20190621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |