CN103895507A - Motor and speed changer integrated power assembly for battery electric vehicles - Google Patents
Motor and speed changer integrated power assembly for battery electric vehicles Download PDFInfo
- Publication number
- CN103895507A CN103895507A CN201410084852.3A CN201410084852A CN103895507A CN 103895507 A CN103895507 A CN 103895507A CN 201410084852 A CN201410084852 A CN 201410084852A CN 103895507 A CN103895507 A CN 103895507A
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- speed changer
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- 239000000969 carrier Substances 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002493 climbing Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Abstract
The invention relates to a motor and speed changer integrated power assembly for battery electric vehicles. The motor and speed changer integrated power assembly comprises a motor, a speed changer and a differential mechanism; the motor comprises a stator, a rotor and a rotor base, and the stator is located on the inner wall of a motor shell; a first electromagnetic brake and a second electromagnetic brake are further arranged on the inner wall of the motor shell, a gear ring is arranged on the first electromagnetic brake in a matched mode, and a planet carrier is arranged on the second electromagnetic brake in a matched mode; the planet carrier is further respectively provided with three front-row planet wheels and three back-row planet wheels; front-row sun wheels are arranged at one axial end of the rotor base; back-row sun wheels are fixedly connected with flanges on a shell of the differential mechanism through screws; one end of the differential mechanism is located in the tubular rotor base, and the other end of the differential mechanism is located in the motor shell. By means of the motor and speed changer integrated power assembly, two-gear shifting can be achieved through different combinations of the two electromagnetic brakes; meanwhile, the motor and speed changer integrated power assembly is compact in structure, small in size and low in weight, and meets the automobile light-weight principle.
Description
Technical field
The invention belongs to pure electric automobile technical field, be specifically related to the dynamic assembly of pure electric automobile.
Background technology
The electricity of existing pure electric automobile drives solution and is conventionally formed by electrical motor, retarder and diff coupling; Because the integrated level of this structure is relatively low, therefore the hill climbing ability of pure electric automobile, acceleration capability and car load efficiency are all restricted.And adopt 2 grades of gear transmissions that axle torque energy can be provided efficiently in larger vehicle speed range, and improve its grade climbing performance and car load efficiency, extend the continual mileage that once charges.Existing conventional electronlmobil two-speed transmission has AMT structure and DCT structure.While adopting AMT structure, need to use synchro, now gearshift is impacted larger; And while adopting DCT structure, because change speed gear box only has two gears, now double clutch construction can make cost greatly increase.
Summary of the invention
Drive for overcoming the electricity of existing pure electric automobile the defect that technology exists, the invention provides a kind of for the motor of pure electric automobile and speed changer integrated dynamic assembly.
Concrete technical solution is as follows:
For the motor of pure electric automobile and speed changer integrated dynamic assembly, comprise motor, change-speed box and diff 13; Described motor comprises stator 1, rotor 2 and rotator seat 3, and stator 1 is positioned on the inwall of electric machine casing 4; Described diff 13 comprises input shaft and output shaft, and the two ends of described output shaft are left half axle 18 and the right axle shaft 19 of connecting electric automobile respectively;
Described rotor 2 is set on the rotator seat 3 of tubulose, and the output shaft of described rotator seat 3 and diff 13 is coaxial; Axial one end of rotator seat 3 is provided with front-seat sun wheel 5; On the inwall of described electric machine casing 4, be also provided with the first magnet stopper 11 and the second magnet stopper 12, coordinate and be provided with gear ring 9 with the first magnet stopper 11, coordinate and be provided with pinion carrier 10 with the second magnet stopper 12; In described pinion carrier 10, be respectively equipped with plural front-seat satellite gear 6 and plural rear seniority among brothers and sisters star-wheel 8, plural front-seat satellite gear 6 and plural rear seniority among brothers and sisters star-wheel 8 front and back are mutually corresponding, and engage with gear ring 9 respectively; Described plural front-seat satellite gear 6 goes back simultaneously and front-seat sun wheel 5 engages; Described plural rear seniority among brothers and sisters star-wheel 8 goes back simultaneously and rear row's sun wheel 7 engages, and described rear row's sun wheel 7 is fixed in one end of the first hollow axle, and the other end of the first hollow axle is fixedly connected with the flange on diff 13 housings by screw; One end of described diff 13 is positioned at the rotator seat 3 of tubulose, and the other end is positioned at electric machine casing 4.
The outer end of described left half axle 18 is provided with left driving gear 14, is located at the inner of left power take-off shaft 20 with the left driven gear 15 of left driving gear 14 engaged transmission; The outer end of right axle shaft 19 is provided with right driving gear 16, is located at the inner of right power take-off shaft 21 with the right driven gear 17 of right driving gear 16 engaged transmission.
After being respectively equipped with three front-seat satellite gears 6 and three in described pinion carrier 10, rank star-wheel 8.
Described front-seat sun wheel 5 is fixed in one end of the second hollow axle, and the other end of the second hollow axle is fixedly connected with described rotator seat 3 by spline, and the second hollow axle coaxial sleeve is located in the first hollow axle of diff 13 1 sides.
Housing one end of described diff 13 by bearings in the rotator seat 3 of tubulose, the other end by bearings in electric machine casing 4.
The present invention adopts magnet stopper that domestic technique is more ripe as shifting element, and compared with AMT structure, gearshift is impacted less; Compared with DCT structure, productive costs is lower.
Useful technique effect of the present invention embodies in the following areas:
1. diff is placed in rotor seat, has reduced the bulk of whole driving system, make integral structure compacter;
2. compare with DCT structure with conventional two-speed transmission AMT structure, gearshift is impacted and is less than AMT structure, and productive costs is lower than DCT structure, and Combination property is better;
3. compared with fixed axis gear transmission, the transmitted power of Planetary Gear Transmission is larger, and load-carrying capacity is higher, efficiency is high, works more reliable;
4. arrangement of gears form structure compactness, volume is little, weight is little, meets the principle of automotive light weight technology.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In upper picture in picture, label is: 1 stator, 2 rotors, 3 rotator seats, 4 electric machine casings, 5 front-seat sun wheels, 6 front-seat satellite gears, 7 rear row's sun wheels, 8 rear seniority among brothers and sisters star-wheels, 9 gear rings, 10 pinion carriers, 11 first magnet stoppers, 12 second magnet stoppers, 13 difies, 14 left driving gears, 15 left driven gears, 16 right driving gears, 17 right driven gears, 18 left half axles, 19 right axle shafts, 20 left power take-off shafts, 21 right power take-off shafts, 22 left wheels, 23 right wheels.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
Referring to Fig. 1, for the motor of pure electric automobile and speed changer integrated dynamic assembly, comprise motor, change-speed box and diff 13; Motor comprises stator 1, rotor 2 and rotator seat 3, and stator 1 is positioned on the inwall of electric machine casing 4, and rotor 2 is set on the rotator seat 3 of tubulose; Axial one end of rotator seat 3 is provided with front-seat sun wheel 5; Front-seat sun wheel 5 is fixed in one end of the second hollow axle, and the other end of the second hollow axle is fixedly connected with described rotator seat 3 by spline, and the second hollow axle coaxial sleeve is located in the first hollow axle of diff 13 1 sides.On the inwall of electric machine casing 4, be also provided with the first magnet stopper 11 and the second magnet stopper 12, coordinate and be provided with gear ring 9 with the first magnet stopper 11, coordinate and be provided with pinion carrier 10 with the second magnet stopper 12; In pinion carrier 10, be respectively equipped with and rank that to rank star-wheel 8 front and back after 8, three front-seat satellite gears 6 of star-wheel and three mutually corresponding after three front-seat satellite gears 6 and three, and engage with gear ring 9 respectively; Three front-seat satellite gears 6 also simultaneously and front-seat sun wheel 5 engage; After three, rank star-wheel 8 and while and rear row's sun wheel 7 engage; Rear row's sun wheel 7 is fixed in one end of the first hollow axle, and the other end of the first hollow axle is fixedly connected with the flange on diff 13 housings by screw.Diff 13 comprises input shaft and output shaft, and the two ends of output shaft are left half axle 18 and the right axle shaft 19 of connecting electric automobile respectively; One end of diff 13 is positioned at the rotator seat 3 of tubulose, and the other end is positioned at electric machine casing 4; The output shaft of rotator seat 3 and diff 13 is coaxial; The outer end of left half axle 18 is provided with left driving gear 14, is located at the inner of left power take-off shaft 20 with the left driven gear 15 of left driving gear 14 engaged transmission; The outer end of right axle shaft 19 is provided with right driving gear 16, is located at the inner of right power take-off shaft 21 with the right driven gear 17 of right driving gear 16 engaged transmission.
Principle of work of the present invention is described as follows:
When rotor 2 cws rotate with certain speed and moment of torsion rotor driven seat 3, the second magnet stopper 12 combinations, when the first magnet stopper 11 is not worked, now pinion carrier 10 is fixing, before, rear rows of planetary gear transmission is converted into fixed shaft gear train transmission, power is passed to front-seat sun wheel 5 by rotator seat 3, be passed to rear row's sun wheel 7 by gear ring 9 again, complete primary speed-down through two single planetary gear reducing mechanisms, power is passed on left half axle 18 and right axle shaft 19 through diff 13 by rear row's sun wheel 7, pass through again left driving gear 14, left driven gear 15 and right driving gear 16, right driven gear 17 completes double reduction, final power exports left wheel 22 and right wheel 23 by left driven gear 15 and right driven gear 17 to through left power take-off shaft 20 and right power take-off shaft 21, now change-speed box is in D1 file location.
When the first magnet stopper 11 engages, when the second magnet stopper 12 is not worked, now gear ring 9 is fixing, power is passed to front-seat sun wheel 5 by rotator seat 3, after being passed to, pinion carrier 10 arranges again sun wheel 7, complete primary speed-down through two single planetary gear reducing mechanisms, power is passed on left half axle 18 and right axle shaft 19 through diff 13 by rear row's sun wheel 7, pass through again left driving gear 14, left driven gear 15 and right driving gear 16, right driven gear 17 completes double reduction, final power exports left wheel 22 and right wheel 23 by left driven gear 15 and right driven gear 17 to through left power take-off shaft 20 and right power take-off shaft 21, now change-speed box is in D2 file location.
When rotor 2 conter clockwises rotate with certain speed and moment of torsion rotor driven seat 3, the second magnet stopper 12 combinations, when the first magnet stopper 11 is not worked, now pinion carrier 10 is fixing, forward and backward rows of planetary gear transmission is converted into fixed shaft gear train transmission, power transmission line is identical with D1 shelves, and now change-speed box is in R file location.
Thus, by the various combination of control system the first magnet stopper 11 and the second magnet stopper 12, thereby can realize two D Drives and a reverse gear.
Taking actual development type pure electric automobile as example, selected gear number is that 2, one grades of transmitting ratios are 10.41, and second gear transmitting ratio is 7.67.Each gear number of teeth is as shown in table 1.
Table 1 gear table of gear tooth number
As shown in Figure 1, the motor for pure electric automobile of the present embodiment and speed changer integrated dynamic assembly have used two gear shift power elements: the first magnet stopper 11, the second magnet stopper 12.
The power element of each gear is as shown in table 2.
The table 2 power element worksheet of shifting gears
Note: in table, "●" represents combination, "○" represents to separate;
Each grade of power transmission line explanation, in conjunction with Fig. 1 and table 2.
The realization of 1.D1 shelves
When the second magnet stopper 12 combinations, when the first magnet stopper 11 is not worked, rotor 2 cws rotate with certain speed and moment of torsion rotor driven seat 3, now pinion carrier 10 is fixing, power is passed to front-seat sun wheel 5 by rotator seat 3, be passed to rear row's sun wheel 7 by gear ring 9 again, complete primary speed-down through two single planetary gear reducing mechanisms, power is passed on left half axle 18 and right axle shaft 19 through diff 13 by rear row's sun wheel 7, pass through again left driving gear 14, left driven gear 15 and right driving gear 16, right driven gear 17 completes double reduction, final power exports left wheel 22 by left driven gear 15 and right driven gear 17 to through left power take-off shaft 20 and right power take-off shaft 21, right wheel 23.
The realization of 2.D2 shelves
When the first magnet stopper 11 engages, when the second magnet stopper 12 is not worked, rotor 2 cws rotate with certain speed and moment of torsion rotor driven seat 3, now gear ring 9 is fixing, power is passed to front-seat sun wheel 5 by rotator seat 3, after being passed to, pinion carrier 10 arranges again sun wheel 7, complete primary speed-down through two single planetary gear reducing mechanisms, power is passed on left half axle 18 and right axle shaft 19 through diff 13 by rear row's sun wheel 7, pass through again left driving gear 14, left driven gear 15 and right driving gear 16, right driven gear 17 completes double reduction, final power exports left wheel 22 by left driven gear 15 and right driven gear 17 to through left power take-off shaft 20 and right power take-off shaft 21, right wheel 23.
The realization of 3.R shelves
When electronlmobil is in the time that reverse gear is travelled, only need provide rotor 2 counter-rotational power.Now the second magnet stopper 12 combinations, the first magnet stopper 11 is not worked, and power transmission line is identical with D1 shelves, because motor rotates counterclockwise, final left and right power take-off shaft 20,21 left-hand revolution outputting powers.
The realization of 4.N shelves
In the time that the first magnet stopper 11 and the second magnet stopper 12 are not worked, unpowered output.
Claims (4)
1. for the motor of pure electric automobile and speed changer integrated dynamic assembly, comprise motor, change-speed box and diff (13); Described motor comprises stator (1) and rotor (2), and stator (1) is positioned on the inwall of electric machine casing (4); Described diff (13) comprises input shaft and output shaft, the two ends of described output shaft are left half axle (18) and the right axle shaft (19) of connecting electric automobile respectively, it is characterized in that: described rotor (2) is set on the rotator seat (3) of tubulose, and the output shaft of described rotator seat (3) and diff (13) is coaxial; Axial one end of rotator seat (3) is provided with front-seat sun wheel (5); On the inwall of described electric machine casing (4), be also provided with the first magnet stopper (11) and the second magnet stopper (12), coordinate and be provided with gear ring (9) with the first magnet stopper (11), coordinate and be provided with pinion carrier (10) with the second magnet stopper (12); In described pinion carrier (10), be respectively equipped with plural front-seat satellite gear (6) and plural rear seniority among brothers and sisters star-wheel (8), mutually corresponding before and after plural front-seat satellite gear (6) and plural rear seniority among brothers and sisters star-wheel (8), and engage with gear ring (9) respectively; Described plural front-seat satellite gear (6) is while and front-seat sun wheel (5) engagement also; Described plural rear seniority among brothers and sisters star-wheel (8) is while and rear row's sun wheel (7) engagement also, described rear row's sun wheel (7) is fixed in one end of the first hollow axle, and the other end of the first hollow axle is fixedly connected with by the flange on the housing of screw and diff (13); One end of described diff (13) is positioned at the rotator seat (3) of tubulose, and the other end is positioned at electric machine casing (4); The outer end of described left half axle (18) is provided with left driving gear (14), is located at the inners of left power take-off shaft (20) with the left driven gear (15) of left driving gear (14) engaged transmission; The outer end of right axle shaft (19) is provided with right driving gear (16), is located at the inners of right power take-off shaft (21) with the right driven gear (17) of right driving gear (16) engaged transmission.
2. according to claim 1 for the motor of pure electric automobile and speed changer integrated dynamic assembly, it is characterized in that: after being respectively equipped with three front-seat satellite gears (6) and three in described pinion carrier (10), rank star-wheel (8).
3. according to claim 1 and 2 for the motor of pure electric automobile and speed changer integrated dynamic assembly, it is characterized in that: described front-seat sun wheel (5) is fixed in one end of the second hollow axle, the other end of the second hollow axle is fixedly connected with described rotator seat (3) by spline, and the second hollow axle coaxial sleeve is located in the first hollow axle of diff (13) one sides.
4. according to claim 1 and 2 for the motor of pure electric automobile and speed changer integrated dynamic assembly, it is characterized in that: housing one end of described diff (13) by bearings in the rotator seat (3) of tubulose, the other end by bearings in electric machine casing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084852.3A CN103895507A (en) | 2014-03-10 | 2014-03-10 | Motor and speed changer integrated power assembly for battery electric vehicles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084852.3A CN103895507A (en) | 2014-03-10 | 2014-03-10 | Motor and speed changer integrated power assembly for battery electric vehicles |
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| CN103895507A true CN103895507A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410084852.3A Pending CN103895507A (en) | 2014-03-10 | 2014-03-10 | Motor and speed changer integrated power assembly for battery electric vehicles |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104477029A (en) * | 2014-12-26 | 2015-04-01 | 合肥工业大学 | Electric drive system of two-gear electric automobile |
| CN105570392A (en) * | 2016-03-25 | 2016-05-11 | 重庆青山工业有限责任公司 | Pure electric two speed transmission |
| CN106427551A (en) * | 2016-11-21 | 2017-02-22 | 合肥工业大学 | Rotary-shaft-free two-speed gearshift transmission system for electric vehicle |
| CN108177512A (en) * | 2017-03-29 | 2018-06-19 | 上海迪鲲机电科技有限公司 | Two grades of speed change electricity of integrated form drive assembly system and application process |
| CN108953539A (en) * | 2018-09-05 | 2018-12-07 | 恒大法拉第未来智能汽车（广东）有限公司 | Two speed transmission and electric car |
| WO2020001859A1 (en) * | 2018-06-25 | 2020-01-02 | Daimler Ag | Transmission unit for a motor vehicle, in particular for a car |
| CN111717024A (en) * | 2020-06-11 | 2020-09-29 | 重庆长安新能源汽车科技有限公司 | Coaxial electric drive axle power assembly with disconnecting mechanism |
| CN112046275A (en) * | 2020-09-26 | 2020-12-08 | 南京好龙电子有限公司 | Axially aligned coaxially driven axle |
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| US20060247081A1 (en) * | 2005-04-18 | 2006-11-02 | Nissan Motor Co., Ltd. | Transmission |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477029A (en) * | 2014-12-26 | 2015-04-01 | 合肥工业大学 | Electric drive system of two-gear electric automobile |
| CN105570392A (en) * | 2016-03-25 | 2016-05-11 | 重庆青山工业有限责任公司 | Pure electric two speed transmission |
| CN106427551A (en) * | 2016-11-21 | 2017-02-22 | 合肥工业大学 | Rotary-shaft-free two-speed gearshift transmission system for electric vehicle |
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| WO2020001859A1 (en) * | 2018-06-25 | 2020-01-02 | Daimler Ag | Transmission unit for a motor vehicle, in particular for a car |
| CN112313429A (en) * | 2018-06-25 | 2021-02-02 | 戴姆勒股份公司 | Transmission device for a motor vehicle, in particular a motor vehicle |
| CN108953539A (en) * | 2018-09-05 | 2018-12-07 | 恒大法拉第未来智能汽车（广东）有限公司 | Two speed transmission and electric car |
| CN111717024A (en) * | 2020-06-11 | 2020-09-29 | 重庆长安新能源汽车科技有限公司 | Coaxial electric drive axle power assembly with disconnecting mechanism |
| CN112046275A (en) * | 2020-09-26 | 2020-12-08 | 南京好龙电子有限公司 | Axially aligned coaxially driven axle |
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Application publication date: 20140702 |