CN203876574U - Power system assembly of two-gear electric car - Google Patents

Power system assembly of two-gear electric car Download PDF

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Publication number
CN203876574U
CN203876574U CN201420292418.XU CN201420292418U CN203876574U CN 203876574 U CN203876574 U CN 203876574U CN 201420292418 U CN201420292418 U CN 201420292418U CN 203876574 U CN203876574 U CN 203876574U
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China
Prior art keywords
gear
pinion carrier
housing
driver plate
power
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Withdrawn - After Issue
Application number
CN201420292418.XU
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Chinese (zh)
Inventor
陈奇
黄守武
赵韩
黄康
何李婷
张琰
晏伟清
郜欣欣
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Hefei University of Technology
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Hefei University of Technology
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Priority to CN201420292418.XU priority Critical patent/CN203876574U/en
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Abstract

The utility model discloses a power system assembly of a two-gear electric car. The power system assembly comprises a motor, a single-row planetary gear train, a synchronizer, a single-stage main reducer, a differential, an electromagnetic brake and a shell, wherein a stator of the motor is fixed in the shell, a rotor of the motor is connected with one side of a rotor spindle, the other side of the rotor spindle is arranged in the shell in a penetration mode through a bearing, the single-row planetary gear train comprises a sun gear, a planetary carrier and two or more planetary gears, the single-stage main reducer comprises a main reducer pinion and a main reducer large gear, and the synchronizer comprises a one-gear synchronization lock ring, a second-gear synchronization lock ring, an engagement sleeve and an engagement sleeve base. A structure integrated design technology is adopted for the power system assembly, and highly integrated design and application of the motor, a transmission and the differential are achieved; integration of the electric drive system is more obvious; the size of the electric drive system is effectively reduced, quality of the electric drive system is effectively improved, and installation can be more convenient; due to the fact that two-gear speed change is used, efficiency of the motor is improved, and the torque of the motor is increased.

Description

A kind of power system assembly of two gear electronlmobils
Technical field
The utility model belongs to electronlmobil electric drive technical field, is specifically related to a kind of power system assembly of two gear electronlmobils.
Background technology
In recent years, China's electronlmobil has been obtained significant progress.At present, electronlmobil on market is the entrucking requirement that meets motor, most of producer adopts independently two parts forms to be assembled on vehicle body in motor and change-speed box, and this mounting means is by matching motor output shaft male splines to realize with input shaft female splines.But so not only can increase mechanicalness noise, vibration, and motor front end cover and case of transmission be absolute construction, will certainly affect the layout in car load space.And electronlmobil is in the market most of, and what adopt is the retarder of fixed speed ratio, can make like this traction electric machine to provide higher instantaneous torque in Heng torque district, Heng power district provides higher running velocity again.Meanwhile, there is the problem that motor working efficiency is lower.
Utility model content
In order to improve motor working efficiency, increase vehicle continual mileage, the utility model provides a kind of power system assembly of two gear electronlmobils.
A kind of power system assembly of two gear electronlmobils comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff 19, magnet stopper 17 and housing 3; The stator 1 of electrical motor is fixed in a side of housing 3, and rotor 2 is connecting a side of rotor shaft 4.The opposite side of described rotor shaft 4 runs through the opposite side of being located at housing 3 by bearing; The middle part empty set of described rotor shaft 4 is provided with sun gear 6, is fixed with the engagement block set 14 on synchro simultaneously; On the housing 3 corresponding with sun gear 6, be fixed with internally toothed annulus 8; The opposite side empty set of rotor shaft 4 is provided with pinion carrier 9, and a side of pinion carrier 9 is provided with plural planetary wheel 7, and the opposite side of pinion carrier 9 is tubular axis shape, is fixed with the main gear 16 that reduces on it; The stator of described magnet stopper 17 is fixed on housing 3, and the drg armature of described magnet stopper 17 is connected with pinion carrier 9; Described plural planetary wheel 7 and sun gear 6 external toothings, while and the interior engagement of internally toothed annulus 8 form single planet circular system;
Described synchro comprises the synchronous lock ring 10 of a gear, the synchronous lock ring 15 of two gears, engaging sleeve 13 and engagement block set 14; Described engagement block set 14 is fixed on rotor shaft 4, and the synchronous lock ring 10 of a described gear is fixed on sun gear 6, and the synchronous lock ring 15 of two gears is fixed in pinion carrier 9, and described engaging sleeve 13 is provided with gearshift driver plate 12; Gearshift driver plate 12 runs through mutually with pinion carrier 9, and gearshift driver plate 12 is with pinion carrier 9 rotations, but gearshift driver plate 12 can be in pinion carrier 9 sway; The circumference of described gearshift driver plate 12 is provided with shift fork 11;
Described master reduces gear 16 and main big gear wheel 18 engagements, the formation single reduction final drive of subtracting; Described master subtracts big gear wheel 18 and is connecting the flange on diff 19 housings, and the housing of diff 19 is located on housing 3 by bearing.
Described gearshift driver plate 12 comprises interior annulus and outer toroid, between described interior annulus and outer toroid, by uniform muscle bar, is connected; In the pinion carrier 9 of answering with muscle pole pair, offer kidney slot, and described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier 9, outer toroid is positioned at the outside of pinion carrier 9, and the effect of the kidney slot driver plate 12 that is to make to shift gears is realized sway with respect to pinion carrier 9.
Described shift fork 11 is semi-annular shape, and the two ends of semicircular ring are respectively equipped with the fixture block of groove shape, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate 12.
Useful effect technique of the present utility model really embodies in the following areas:
1. the utility model becomes driving motor for electric automobile an integral body with transmission design, has effectively reduced complexity and the area of housing 3, has reduced the axial and radial dimension of dynamic assembly;
2. the utility model is by sun gear 6 with mainly reduce gear 16 and be directly located on the rotor shaft 4 of drive motor, avoided motor output shaft to coordinate the concentricity tolerance of installing and causing with input shaft, eliminate the mechanical vibration that bring thus, reduced mechanical connection and noise;
3. power system of electric automobile assembly adopts two gear speed changes, one gear is for the planet circular system deceleration by sun gear 6, planetary wheel 7 and internally toothed annulus 8 compositions is by main reduction gear outputting power, two gears are for passing through the direct outputting power of main reduction gear, compare with current electronlmobil, drive motor can work long hours in efficient district, increases vehicle continual mileage;
4. the present invention adopts two gear dual-shaft variable schemes, master is reduced to one end that gear 16 is connected to pinion carrier 9, make two gears share a main reduction gear, this structural arrangement form is simple, remove driven gear shaft, reduced the radial dimension of this assembly, compact conformation, volume is little, weight is little, meets the principle of automotive light weight technology;
5. the present invention has magnet stopper 17 parking locking mechanism and realizes change-speed box and car load braking parking, and magnet stopper 17 has that energising is separated, the characteristic of power-off brake.During automobile normal running, magnet stopper 17 energisings, in released state, now change-speed box is normally worked; When automobile is during in parking state, magnet stopper 17 power-off, in braking mode, master reduces gear 16 and is braked, and further diff 19 is braked, and can avoid unnecessary the sliding of vehicle, when the road conditions of uphill/downhill and frequent starting parking, the parking safety that improves car load.
Accompanying drawing explanation
Fig. 1 is a kind of power system assembly structure sketch of two gear electronlmobils.
Fig. 2 is gearshift driver plate and pinion carrier partial view.
Fig. 3 is the assembling schematic diagram of gearshift driver plate and pinion carrier.
Sequence number in upper figure: in stator 1, rotor 2, housing 3, rotor shaft 4, sun gear 6, planetary wheel 7, internally toothed annulus 8, pinion carrier 9(Fig. 2,9 is a part for pinion carrier), the synchronous lock ring 10 of a gear, shift fork 11, gearshift driver plate 12, engaging sleeve 13, engagement block set 14, the synchronous lock ring 15 of two gears, main gear 16, magnet stopper 17, main big gear wheel 18, diff 19, the wheel 20 of subtracting of reducing.
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the power system assembly of a kind of electronlmobil of the utility model is further described.
Embodiment
Referring to Fig. 1, a kind of power system assembly of two gear electronlmobils comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff 19, magnet stopper 17 and housing 3.
The stator 1 of electrical motor is fixedly installed in a side of housing 3, and rotor 2 is connecting a side of rotor shaft 4.The opposite side of rotor shaft 4 runs through the opposite side that is installed on housing 3 by bearing; The middle part empty set of rotor shaft 4 is provided with sun gear 6, is installed with the engagement block set 14 on synchro simultaneously.On the housing 3 corresponding with sun gear 6, be installed with internally toothed annulus 8.The opposite side empty set of rotor shaft 4 is provided with pinion carrier 9, and a side of pinion carrier 9 is provided with three planetary wheels 7, and the opposite side of pinion carrier 9 is tubular axis shape, is installed with the main gear 16 that reduces on it; The stator of magnet stopper 17 is fixed on housing 3, and the drg armature of magnet stopper 17 is connected with pinion carrier 9.Plural planetary wheel 7 and sun gear 6 external toothings, while and the interior engagement of internally toothed annulus 8 form single planet circular system.
Referring to Fig. 2 and Fig. 3, synchro comprises the synchronous lock ring 10 of a gear, the synchronous lock ring 15 of two gears, engaging sleeve 13 and engagement block set 14.The synchronous lock ring 10 of one gear is fixedly installed on sun gear 6, and the synchronous lock ring 15 of two gears is fixedly installed in pinion carrier 9, and engaging sleeve 13 is provided with gearshift driver plate 12; Gearshift driver plate 12 runs through mutually with pinion carrier 9, and gearshift driver plate 12 is with pinion carrier 9 rotations, and gearshift driver plate 12 comprises interior annulus and outer toroid, between interior annulus and outer toroid, by uniform muscle bar, is connected; In the pinion carrier 9 of answering with muscle pole pair, offer kidney slot, described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier 9, outer toroid is positioned at the outside of pinion carrier 9, and the effect of the kidney slot driver plate 12 that is to make to shift gears is realized sway with respect to pinion carrier 9.The circumference of gearshift driver plate 12 is provided with shift fork 11, and shift fork 11 is semi-annular shape, and the two ends of semicircular ring are respectively equipped with the fixture block of groove shape, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate 12.
Main gear 16 and main big gear wheel 18 engagements, the formation single reduction final drive of subtracting of reducing; Master subtracts big gear wheel 18 and is connecting the flange on diff 19 housings, and the housing of diff 19 is located on housing 3 by bearing.
Principle of work of the present utility model is described as follows:
The actual development type pure electric automobile of take is example, and gear number is 2, and Planetary Gear Transmission group reduction ratio is 2.84, and base ratio is 4.According to Gear calculation method, the number of teeth that calculates each gear is as shown in table 1.
Table 1 gear table of gear tooth number
As shown in Figure 1, a kind of power system of electric automobile assembly has been used following gearshift power element synchro and magnet stopper.
The power element of each gear is as shown in table 2.
Table 2 gearshift power element worksheet
Note: in table, "●" represents combination, " zero " represents separated.
Two forward gears and the power transmission line reversing gear of this power system of electric automobile assembly are as follows:
1. neutral (N position)
During neutral, magnet stopper 17 energising is separated, and synchronizer sleeve 13 is neither synchronizeed lock ring 10 and engaged with a gear, and the lock ring 15 of also not synchronizeing with two gears engages, and now motor cannot be by transmission of power to wheel, and vehicle relies on inertia traveling or comes to a halt;
2. forward gear (D position)
(1) gear (D1 gear) that advances
Magnet stopper 17 energising is separated, and synchro shift fork 11 is shifted to the synchronous lock ring 10 of a gear, drives gearshift driver plate 12 and engaging sleeve 13 to move right, and makes engaging sleeve 13 synchronize lock ring 10 joints with a gear;
Power rotates through rotor 2 rotor driven axles 4, and then drive sun gear 6 to rotate by engagement block set 14, engaging sleeve 13, the synchronous lock ring 10 of a gear, on housing 3, internally toothed annulus 8 is fixing, three planetary wheels 7 are around sun gear 6 revolution, pinion carrier 9 is with 7 rotations of three planetary wheels, pinion carrier 9 is connected and is driven the main gear 16 that reduces to rotate by key, and power is passed to the main big gear wheel 18 that subtracts by the main gear 16 that reduces, and finally by diff 19, makes wheel 20 rotation outputting powers.This gear, for middle bottom gear, is mainly used in middle low speed driving and climbing etc.;
(2) two gears (D2 gear) that advance
Magnet stopper 17 energising is separated, and synchro shift fork 11 is shifted to the synchronous lock ring 15 of two gears, drives gearshift driver plate 12 and engaging sleeve 13 to be moved to the left, and makes engaging sleeve 13 synchronize lock ring 15 joints with two gears;
Power rotates through rotor 2 rotor driven axles 4, and then drive pinion carrier 9 to rotate by engagement block set 14, engaging sleeve 13, the synchronous lock ring 15 of two gears, pinion carrier 9 is connected and is driven the main gear 16 that reduces to rotate by key, power is passed to the main big gear wheel 18 that subtracts by the main gear 16 that reduces, and finally by diff 19, makes wheel 20 rotation outputting powers.This gear, for top gear, is mainly used in running at high speed;
3. reverse gear (R position)
The utility model does not arrange the position of reversing gear specially, and reverse gear and realize by motor reversal.Power transmission line is identical with the gear that advances, and due to rotor 2 reversions, last wheel reversing, realizes reversing;
4. parking (P position)
This halting mechanism adopts the magnet stopper 17 with energising separation, power-off brake characteristic.When the normal road conditions of electronlmobil are travelled, magnet stopper 17 is switched on all the time, and it is in released state, and this parking locking mechanism is not worked; When electric automobile during traveling is during in the road conditions that uphill/downhill or frequent starting are stopped, magnet stopper 17 power-off, it is in braking mode, and this parking locking mechanism is just started working.It can replace the function of parking brake.

Claims (3)

1. a power system assembly for two gear electronlmobils, comprises electrical motor, single planet circular system, synchro, single reduction final drive, diff, magnet stopper (17) and housing (3); The stator of electrical motor (1) is fixed in a side of housing (3), and rotor (2) is connecting a side of rotor shaft (4), it is characterized in that: the opposite side of described rotor shaft (4) runs through the opposite side of being located at housing (3) by bearing; The middle part empty set of described rotor shaft (4) is provided with sun gear (6), is fixed with the engagement block set (14) on synchro simultaneously; On the housing (3) corresponding with sun gear (6), be fixed with internally toothed annulus (8); The opposite side empty set of rotor shaft (4) is provided with pinion carrier (9), and a side of pinion carrier (9) is provided with plural planetary wheel (7), and the opposite side of pinion carrier (9) is tubular axis shape, is fixed with the main gear (16) that reduces on it; It is upper that the stator of described magnet stopper (17) is fixed on housing (3), and the drg armature of described magnet stopper (17) is connected with pinion carrier (9); Described plural planetary wheel (7) and sun gear (6) external toothing, in while and internally toothed annulus (8), engagement forms single planet circular system;
Described synchro comprises the synchronous lock ring of a gear (10), two gear synchronous lock rings (15), engaging sleeve (13) and engagement block set (14); Described engagement block set (14) is fixed on rotor shaft (4), a described synchronous lock ring of gear (10) is fixed on sun gear (6), it is upper that the two synchronous lock rings of gear (15) are fixed at pinion carrier (9), and described engaging sleeve (13) is provided with gearshift driver plate (12); Gearshift driver plate (12) runs through mutually with pinion carrier (9), and gearshift driver plate (12) is with pinion carrier (9) rotation, but gearshift driver plate (12) can be in the upper sway of pinion carrier (9); The circumference of described gearshift driver plate (12) is provided with shift fork (11);
Described master reduces gear (16) and main big gear wheel (18) engagement, the formation single reduction final drive of subtracting; Described master subtracts big gear wheel (18) and is connecting the flange on diff (19) housing, and the housing of diff (19) is located on housing (3) by bearing.
2. the power system assembly of a kind of two gear electronlmobils according to claim 1, is characterized in that: described gearshift driver plate (12) comprises interior annulus and outer toroid, between described interior annulus and outer toroid, by uniform muscle bar, is connected; In the pinion carrier (9) of answering with muscle pole pair, offer kidney slot, and described muscle bar is positioned at kidney slot, make interior annulus be positioned at the inner side of pinion carrier (9), outer toroid is positioned at the outside of pinion carrier (9), and the effect of the kidney slot driver plate (12) that is to make to shift gears is realized sway with respect to pinion carrier (9).
According to claim 2 a kind of two gear electronlmobils power system assembly, it is characterized in that: described shift fork (11) is semi-annular shape, the two ends of semicircular ring are respectively equipped with the fixture block of groove shape, and the fixture block at two ends is buckled in the outer toroid of gearshift driver plate (12).
CN201420292418.XU 2014-06-04 2014-06-04 Power system assembly of two-gear electric car Withdrawn - After Issue CN203876574U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104057821A (en) * 2014-06-04 2014-09-24 合肥工业大学 Power system assembly for two-speed electric vehicles
US9421966B2 (en) 2014-10-20 2016-08-23 Byd Company Limited Hybrid vehicle and shifting control method and power transmission system thereof
US9568082B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568066B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Power transmission system and vehicle comprising the same
US9568080B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568081B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568065B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Transmission unit, power transmission system and vehicle comprising the same
US9566978B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Vehicle and drive control method for the same
US9874266B2 (en) 2014-09-10 2018-01-23 Byd Company Limited Power transmission system and vehicle comprising the same
US9919699B2 (en) 2014-01-30 2018-03-20 Byd Company Limited Vehicle and method for controlling synchronizer of the same
US9944165B2 (en) 2014-01-30 2018-04-17 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US10363806B2 (en) 2014-01-30 2019-07-30 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US10670123B2 (en) 2014-01-30 2020-06-02 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9566978B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Vehicle and drive control method for the same
US9919699B2 (en) 2014-01-30 2018-03-20 Byd Company Limited Vehicle and method for controlling synchronizer of the same
US10363806B2 (en) 2014-01-30 2019-07-30 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568082B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9944165B2 (en) 2014-01-30 2018-04-17 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568080B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US9568081B2 (en) 2014-01-30 2017-02-14 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
US10670123B2 (en) 2014-01-30 2020-06-02 Byd Company Limited Power transmission system for vehicle and vehicle comprising the same
CN104057821A (en) * 2014-06-04 2014-09-24 合肥工业大学 Power system assembly for two-speed electric vehicles
CN104057821B (en) * 2014-06-04 2016-03-23 合肥工业大学 A kind of power system assembly of two gear electronlmobils
US9874266B2 (en) 2014-09-10 2018-01-23 Byd Company Limited Power transmission system and vehicle comprising the same
US9568066B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Power transmission system and vehicle comprising the same
US9568065B2 (en) 2014-09-10 2017-02-14 Byd Company Limited Transmission unit, power transmission system and vehicle comprising the same
US9421966B2 (en) 2014-10-20 2016-08-23 Byd Company Limited Hybrid vehicle and shifting control method and power transmission system thereof

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GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20141015

Effective date of abandoning: 20160323