CN206528311U - A kind of pure electric vehicle double-motor driving device - Google Patents
A kind of pure electric vehicle double-motor driving device Download PDFInfo
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- CN206528311U CN206528311U CN201720202089.9U CN201720202089U CN206528311U CN 206528311 U CN206528311 U CN 206528311U CN 201720202089 U CN201720202089 U CN 201720202089U CN 206528311 U CN206528311 U CN 206528311U
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Abstract
The utility model discloses a kind of pure electric vehicle double-motor driving device, the first motor, the second motor, decelerator, differential mechanism are become one by Integration Design, common housing, and motor shaft not only as the output shaft of motor but also is used as the input shaft of decelerator, amount of parts is effectively reduced, assembly weight is reduced.The power that first motor of the drive device and the second motor are produced is directly inputted to decelerator by the first motor shaft and the second motor shaft, is reduced power loss, is improved transmission efficiency.The drive device includes two motors, can be according to the demand of user, driving or a motor are operated alone the carry out bi-motor of selectivity jointly, the starting acceleration performance and high speed performance of pure electric automobile are taken into account simultaneously, and ensure that motor is in higher operating mode rate of load condensate, improve the efficiency of drive device.
Description
Technical field
The utility model belongs to the technical field of pure electric vehicle drive device, and more particularly to one kind is in pure electric vehicle
On the double-motor driving device that uses.
Background technology
At present, Global Emissions of Greenhouse Gas aggravates, and various regions haze is taken place frequently, and environmental problem is increasingly highlighted, and vehicle exhaust is recognized
To be one of the arch-criminal for causing above mentioned problem, with the continuous consumption and the appearance of increasingly strict Abgasgesetz of petroleum-based energy,
New-energy automobile is small as one kind discharge, pollutes the extensive attention that few vehicles have obtained each vehicle factory, develops new energy
Automobile has turned into the very urgent task of automobile industry.
Pure electric automobile fully relies on battery and powers to drive vehicle to motor, and its energy comes from power network, realizes
Zero oil consumption, zero-emission, can effectively reduce the average fuel consumption of vehicle enterprise, therefore, commercially pure electric automobile into
For one of speedup most fast vehicle.But the drive device on most of pure electric automobiles uses a motor at present
With the combination of the decelerator of a fixed speed ratio, due to motor fan-out capability limitation and transforming gear can not be carried out,
It is difficult to take into account vehicle climbing and acceleration and the requirement of vehicle max. speed, causes the dynamic property and highest of part pure electric automobile
Speed gap compared with orthodox car is obvious.Chinese patent CN101386258A provides a kind of pure motorized motions system of bi-motor
System, which employs the part used in the traditional vehicles such as gearbox and clutch, gearbox is less efficient compared with decelerator, and from
Clutch also has very high friction loss.
Utility model content
For the deficiency of above-mentioned prior art, the purpose of this utility model is to provide a kind of compact conformation, integrated level
Height, the starting acceleration performance of pure electric automobile and the pure electric vehicle double-motor driving device of high speed performance can be taken into account simultaneously.
The technical solution adopted in the utility model is：
Embodiment of the present utility model provides a kind of pure electric vehicle double-motor driving device, including driving chamber and placement
The first motor, the second motor, decelerator and differential mechanism in the driving chamber, the driving chamber is by the first motor
Housing and it is fixed on and first electric motor end cap and the second electric machine casing of first electric machine casing one end and is fixed on the second motor casing
Second electric motor end cap of body one end is collectively forming, the other end of first electric machine casing and second electric machine casing it is another
End is connected with each other, and the driving chamber is divided into the first motor chamber, decelerator chamber and the second motor chamber；First driving
First motor shaft of motor stretches into the decelerator chamber through the first motor chamber, and the two ends of first motor shaft are propped up respectively
Hold on first electric machine casing and first electric motor end cap；Second motor shaft of second motor is described in
Second motor chamber stretches into the decelerator chamber, and the two ends of second motor shaft are supported on second electric machine casing respectively
On second electric motor end cap；The decelerator and the differential mechanism are arranged in the decelerator intracavitary, the decelerator bag
The first train of reduction gears, the second train of reduction gears and final gear group are included, the differential mechanism includes differential carrier and is arranged on
Planetary gear, left half axle gear and right axle shaft gear in the differential carrier, wherein, first train of reduction gears includes phase
The first deceleration driving gear and the first deceleration driven gear mutually engaged, first deceleration driving gear and first motor
Axle is coaxially disposed and driven by first motor shaft and rotated, and the first deceleration driven gear is connected on a jackshaft, institute
The two supports of jackshaft are stated on first electric machine casing and second electric machine casing；The second train of reduction gears bag
Include intermeshing second deceleration driving gear and the second deceleration driven gear, second deceleration driving gear and described second
Motor shaft is coaxially disposed and driven by second motor shaft and rotated, and the second deceleration driven gear is connected to the jackshaft
On；The final gear group includes being intermeshed main deceleration driving gear and main deceleration driven gear, the main active of slowing down
Gear is coaxially disposed with the jackshaft and driven by the jackshaft and rotated, and the main deceleration driven gear is fixedly connected on institute
State on differential carrier；The Formation of Axle Shaft Spline connection of the left half axle gear and vehicle, with the wheel for the side for driving vehicle, the right side
Axle shaft gear is connected with the external splines on output shaft, and the output shaft is passed through from first motor shaft and by the output shaft
On internal spline be connected with the Formation of Axle Shaft Spline of the vehicle, with the wheel for the opposite side for driving vehicle；Described first slows down passively
One in gear and the second deceleration driven gear is optionally engaged and is disconnected with the jackshaft, and described
One motor shaft, the jackshaft and second motor shaft are set parallel to each other.
Alternatively, first deceleration driving gear is integrally formed with first motor shaft, and described second slows down actively
Gear is integrally formed with second motor shaft, and the main deceleration driving gear is integrally formed with the jackshaft.
Alternatively, the first deceleration driven gear is supported on the jackshaft by needle bearing, and described second subtracts
Fast driven gear is connected on the jackshaft by spline.
Alternatively, the first deceleration driven gear is connected on the jackshaft by spline, the second deceleration quilt
Moving gear is supported on the jackshaft by needle bearing.
Alternatively, be provided with parking gear and synchronizer on the jackshaft, the parking gear by spline with it is described
Jackshaft is connected and is connected with outside halting mechanism, and the tooth set of the synchronizer is connected by spline with the jackshaft, described
Synchronizer is arranged on left side and and the exterior operator of the first deceleration driven gear or the second deceleration driven gear
Connection, it is described it is outside perform structure by stir the clutch collar on the synchronizer come reality the first deceleration driven gear or
The engagement and disconnection of the second deceleration driven gear and the jackshaft.
Alternatively, first motor also includes being placed in the first motor stator on first motor shaft and the
One rotor, the first motor rotary transformer, the first motor rotary transformer are arranged in the outer of first motor shaft
Hold and at the position of the inner face of the first electric motor end cap；Second motor also includes being placed in second motor
The second motor stator and the second rotor, the second motor rotary transformer on axle, the second motor rotary transformer cloth
Put in the outer end of second motor shaft and at the position of the inner face of the second electric motor end cap.
Alternatively, the output shaft is supported on the rear end cap of the first electric motor end cap connection, in second motor
It is provided with housing and sealed half sealing is carried out to the semiaxis of the vehicle, is provided with to enter output shaft on end cap in the rear
Row sealedly output sealing.
Alternatively, first deceleration driving gear, the first deceleration driven gear, the second deceleration driving tooth
Wheel, the second deceleration driven gear, the main deceleration driving gear and the main deceleration driven gear are all helical gear.
Alternatively, between first electric machine casing and first electric motor end cap, second electric machine casing and described
It is bolted between second electric motor end cap and between first electric machine casing and second electric machine casing, the master
Deceleration driven gear is fixed together with the differential carrier by riveting, welding or bolt connection.
Alternatively, first motor and second motor are permagnetic synchronous motor or alternating current asynchronous electricity
Machine.
Alternatively, it is fixed to first motor to be respectively formed with first electric machine casing and second electric machine casing
The cooling pipe that sub and described second motor stator is cooled down.
Compared with prior art, pure electric vehicle of the present utility model at least has advantages below with double-motor driving device：
Pure electric vehicle double-motor driving device of the present utility model is by the first motor, the second motor, decelerator, differential mechanism
It is integrated, amount of parts is effectively reduced, assembly weight is reduced.Due to including two motors, Ke Yigen
The acceleration and efficiency of pure electric automobile are taken into account simultaneously according to the demand of user.Promptly accelerate in vehicle or in larger slope road traveling
When, two motors work simultaneously, meet dynamic property demand, when vehicle is at the uniform velocity travelled, and a motor works independently, now motor
In higher operating mode rate of load condensate, electric efficiency is higher, reduces the consumption of battery electric quantity, improves vehicle continual mileage.
Brief description of the drawings
Fig. 1 is a kind of sectional view of pure electric vehicle double-motor driving device of the present utility model.
Fig. 2 is a kind of outline drawing of the first motor shaft of pure electric vehicle double-motor driving device of the present utility model.
Fig. 3 is a kind of outline drawing of the second motor shaft of pure electric vehicle double-motor driving device of the present utility model.
Fig. 4 is a kind of outline drawing of the output shaft of pure electric vehicle double-motor driving device of the present utility model.
(description of reference numerals)
1- jackshafts, 2- synchronizers, 3- the first deceleration driven gears, 4- needle bearings, 5- jackshaft right bearings, 6- first
Electric machine casing, the motor stators of 7- first, the rotors of 8- first, the electric motor end caps of 9- first, 10- the first motor rotary transformers,
11- the first motor left bearings, 12- output shaft bearings, 13- output shaft oil sealings, 14- rear end caps, 15- output shafts, 15a- output shafts
External splines, the internal spline of 15b- output shafts, the motor shafts of 16- first, 16a- first gears portion, 17- the first motor right bearings,
18- the first motor shaft oil sealings, 19- differential mechanism right bearings, 20- differential carriers, the main deceleration driven gears of 21-, 22- axle shaft gears,
23- differential mechanism left bearings, 24- axle-shaft oil seals, 25- parking gears, 26- the second deceleration driven gears, 27- jackshaft left bearings,
28- the second motor shaft oil sealings, 29- the second motor right bearings, the motor stators of 30- second, the rotors of 31- second, the electricity of 32- second
Machine left bearing, the motor shafts of 33- second, 33a- second gears portion, 34- the second motor rotary transformers, the electric motor end caps of 35- second,
The electric machine casings of 36- second, the main deceleration driving gears of 37-.
Embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
Fig. 1 is a kind of sectional view of pure electric vehicle double-motor driving device of the present utility model.Fig. 2 is that this practicality is new
A kind of outline drawing of first motor shaft of pure electric vehicle double-motor driving device of type.Fig. 3 is one kind of the present utility model
The outline drawing of second motor shaft of pure electric vehicle double-motor driving device.Fig. 4 is a kind of pure electric vehicle of the present utility model
With the outline drawing of the output shaft of double-motor driving device.Hereinafter, referring to figs. 1 to Fig. 4 to pure electric vehicle of the present utility model
It is introduced with double-motor driving device.
The pure electric vehicle double-motor driving device that the utility model embodiment is provided includes driving chamber and is placed in institute
The first motor, the second motor, decelerator and the differential mechanism in driving chamber are stated, by the first motor, the second driving
Motor, decelerator and differential mechanism composition dynamic transfer system.As shown in figure 1, the driving chamber is by the first electric machine casing 6 and fixes
First electric machine casing one end the first electric motor end cap 9 and the second electric machine casing 36 and be fixed on second electric machine casing one end
Second electric motor end cap 35 is collectively forming, the other end of the other end of first electric machine casing 6 and second electric machine casing 36
It is connected with each other.Between first electric machine casing and first electric motor end cap, second electric machine casing and it is described second electricity
It can be bolted between generator terminal lid and between first electric machine casing and second electric machine casing.The driving chamber
The first motor chamber, decelerator chamber and the second motor chamber can be internally divided into, the first motor chamber is used to pacify
The first motor associated components are put, the second motor chamber is used to dispose the second motor associated components, and decelerator chamber is used
In placement decelerator and differential mechanism, decelerator is arranged in above differential mechanism and close to the second motor chamber, and differential mechanism is close to the
One motor chamber, so, the first electric machine casing 6 can be used as the first motor and the shared housing of decelerator, the second motor
The housing that housing 36 can be shared as the second motor, decelerator and differential mechanism.First motor chamber and decelerator chamber it
Between sealed by the first motor shaft oil sealing 18, pass through the second motor shaft oil sealing between the second motor chamber and decelerator chamber
28 are sealed, it is ensured that the lubricating oil of decelerator does not enter in the first motor and the second motor to two motors
Insulation produce influence.Decelerator intracavitary is equipped with lubricating oil, and the gear and bearing of decelerator are carried out glossy by way of splashing
It is sliding.
Specifically, the first motor shaft 16 of the first motor stretches into the decelerator chamber through the first motor chamber,
One end of first motor shaft 16 is supported on the first electric machine casing 6 by the first motor left bearing 17, and the other end passes through
One motor right bearing 11 is supported on the first electric motor end cap 9, and the first motor also includes being placed on first motor shaft 6
The first motor stator 7 and the first rotor 8, the first motor rotary transformer 10, the cloth of the first motor rotary transformer 8
Put in the outer end of first motor shaft 6 and at the position of the inner face of the first electric motor end cap 9.Second motor
The second motor shaft 33 stretch into the decelerator chamber through the second motor chamber, described one end of second motor shaft 33 passes through
Second motor left bearing 32 is supported on the second electric motor end cap 35, and the second motor may include to be placed in second motor shaft
The second motor stator 30 and the second rotor 31, the second motor rotary transformer 34 on 33, the second motor rotation become
Depressor 34 is arranged in the outer end of second motor shaft 33 and at the position of the inner face of the second electric motor end cap 35.Described
One motor stator 7 and the second motor stator 30 are constituted by stator core and winding, and stator core is laminated by non-oriented silicon steel sheet
Form, stator winding is distributed winding, and the rotor 31 of the first rotor 8 and second is by rotor core, permanent magnetism
Body is constituted with dynamic balancing duplicate removal plate, and rotor core is overrided to form by non-oriented silicon steel sheet, and permanent magnet material is neodymium iron boron, dynamic balancing
Duplicate removal plate material is stainless steel.First motor and the second motor can all be dry type motor, for example, can be permanent-magnet synchronous
Motor or AC induction motor.In the case where the first motor and the second motor are dry type motor, in the first motor
Have the cooling water channel of casting on the electric machine casing 36 of housing 6 and second, so as to by way of water cooling to the first motor
The motor stator 30 of stator 7 and second is cooled down, and cooling water channel can be formation in the first electric machine casing 6 and the second electric machine casing 36
On spirality channel.First motor rotary transformer 10 is the position sensor of the first motor, and the rotation of the second motor becomes
Depressor 34 is the position sensor of the second motor, and vehicle can drive according to the signal understood from two position sensors to two
Dynamic motor is controlled.
With continued reference to Fig. 1, decelerator may include the first train of reduction gears, the second train of reduction gears and final gear group,
The differential mechanism includes differential carrier 20 and the planetary gear and two coaxial half axle gears that are arranged in the differential carrier 20
Wheel 22.The structure and layout of each part (differential carrier, planetary gear and axle shaft gear etc.) of differential mechanism in the utility model
Similarly to the prior art, avoid that they are described in detail herein.
Wherein, first train of reduction gears includes intermeshing first deceleration driving gear and the first deceleration passive tooth
Wheel 3, first deceleration driving gear, which is coaxially disposed with first motor shaft 16 and driven by first motor shaft 16, to be turned
Dynamic, the first deceleration driven gear 3 is connected between on axle 1, and the two supports of the jackshaft 1 are in first motor casing
On body 6 and second electric machine casing 36, specifically, one end of jackshaft 1 supports to the second electricity by jackshaft left bearing 27
On casing body 36, the other end is supported on the first electric machine casing 6 by jackshaft right bearing 5.In one example, to cause structure
Characteristics of compact layout and reduce parts, the first deceleration driving gear can be and the integrally formed first gear portion of the first motor shaft 16
16a, is specifically molded over the first motor shaft 16 and stretches on the end in decelerator chamber, as shown in Fig. 2 so, the first motor shaft 16
Both as the output shaft of the first motor, and as the input shaft of the first decelerator group, by with its integrally formed first
Gear part 16a is meshed with the first reduction gearing 3, and the power that directly can be exported the first motor shaft 16 passes to decelerator, subtracts
Lack power loss, improve transmission efficiency；But the utility model is not limited thereto, the first deceleration driving gear may not be used yet
It is integrally formed, but is fixed on by modes such as splines on the first motor shaft 16 with the first motor shaft 16.Second reducing gear
Wheel group may include intermeshing second deceleration driving gear and the second deceleration driven gear 26, second deceleration driving gear
It is coaxially disposed with second motor shaft 33 and rotation, the second deceleration driven gear 26 is driven by second motor shaft 33
It is connected on the jackshaft 1.In one example, for cause structure characteristics of compact layout and reduce parts, the second deceleration driving tooth
Wheel can be with the integrally formed second gear portion 33a of the second motor shaft 33, be specifically molded over the second motor shaft 33 and stretch into decelerator
On end in chamber, as shown in figure 3, still the utility model is not limited thereto, the second deceleration driving gear also can not be with
Two motor shafts 33 are integrally formed, but are fixed on by modes such as splines on the second motor shaft 33.So, the second motor shaft 33 had been both
As the output shaft of the second motor, and as the input shaft of the second decelerator group, by with its integrally formed second tooth
Wheel portion 33a is meshed with the second reduction gearing 26, and the power that directly can be exported the second motor shaft 33 passes to decelerator, reduces
Power loss, improves transmission efficiency.The first deceleration driven gear 3 and the second deceleration driven gear 26 in the utility model
In one optionally engaged and disconnected with the jackshaft 1.In one example, the first deceleration driven gear
3 are supported on the jackshaft 1 by needle bearing 4, the second deceleration driven gear 26 by spline be connected to it is described in
On countershaft 1, the first deceleration driven gear 3 realizes the engagement and disconnection with jackshaft 1 by synchronizer described later.Another
In one example, the first deceleration driven gear 3 can be connected to by spline on the jackshaft 1, and the second deceleration quilt
Moving gear 26 is supported on the jackshaft by needle bearing 4, and the second deceleration driven gear 26 passes through synchronization described later
Device realizes engagement and disconnection with jackshaft 1.That is, optionally make the first motor of the present utility model and
One or two in second motor to provide power for vehicle.
The final gear group includes being intermeshed main deceleration driving gear 37 and main deceleration driven gear 21, the master
Deceleration driving gear 37 is coaxially disposed with the jackshaft 1 and drives rotation, the main deceleration driven gear by the jackshaft 1
21 are fixedly connected on the differential carrier 20, for example, can be by riveting, welding or bolt connection fixed to differential carrier
20.In one example, to cause structure characteristics of compact layout and reducing parts, main deceleration driving gear 37 can be with the one of jackshaft 1
Shaping, but the utility model is not limited thereto, main deceleration driving gear 37 can not be also integrally formed with jackshaft 1, but
It is fixed on by modes such as splines on jackshaft 1.First gear portion 16a, second gear portion 33a, the first deceleration driven gear 3,
Second deceleration driven gear 26, main deceleration driving gear 37, main deceleration driven gear 21 can all be helical gear, so as to meet weight
Intensity requirement during load.In the utility model, first motor shaft 16, the jackshaft 1 and second motor shaft 33
It is set parallel to each other, so enables to the compact conformation and collection of pure electric vehicle double-motor driving device of the present utility model
It is high into degree.
Differential assembly is supported on the second electric machine casing 36 by differential mechanism left bearing 23 and differential mechanism right bearing 19.Difference
The axle shaft gear in the left side of fast device and the Formation of Axle Shaft Spline of vehicle are connected, and drive the wheel of side, the internal spline of right axle gear
Be connected with the external splines 15a of output shaft 15, output shaft 15 from the first motor shaft 16 through again by internal spline 15b thereon with
The Formation of Axle Shaft Spline connection of vehicle, drives the wheel of opposite side, such first motor and differential mechanism be it is coaxially arranged, and second
Motor is parallel shaft arrangement with differential mechanism.As shown in figure 4, external splines 15a and internal spline 15b are respectively formed at output shaft 15
Two ends.Output shaft 15 is supported on rear end cap 14 by output shaft bearing 12, and rear end cap 14 can pass through with the first electric motor end cap 9
Bolt connection.Axle-shaft oil seal 24 is installed on the second electric machine casing, and output shaft oil sealing 13 is installed on rear end cap 14, drive device
Two output ends sealed respectively by axle-shaft oil seal 24 and output shaft oil sealing 13, so as to ensure lubricating oil in device not
Leakage.
In addition, being provided with parking gear 25 on jackshaft 1, the two is connected by spline, and parking gear 25 is arranged on institute
State between the second deceleration driven gear 26 and the main deceleration driving gear 37 and be connected with outside halting mechanism (not shown), outside
Portion's halting mechanism pins jackshaft 1 by parking gear 25, so as to realize parking function；Synchronizer is also equipped with jackshaft 1
2, the tooth set of synchronizer 2 is connected with the spline of jackshaft 1, and synchronizer 2 may be provided at the first deceleration driven gear 3 or second and slow down
The left side of driven gear 26 is simultaneously connected (not shown) with outside execution structure, and exterior operator stirs synchronizer 2 by shift fork
On clutch collar, realize the engagement and disconnection of the reduction gearing 3 of synchronizer 2 and first or the second deceleration driven gear 26, i.e., it is real
The engagement and disconnection of existing first reduction gearing 3 or the second deceleration driven gear 26 and jackshaft 1, so as to realize the first driving electricity
Power and the engagement and disconnection of output end that machine or the second motor are produced.
It should be noted that being fixedly connected between the utility model middle gear and axle employs spline connected mode, but
It is to be not limited thereto, it would however also be possible to employ the mode of interference combination.Fitted in addition, bearing used in the utility model can be used
For the even extremely high-revolving operation of high rotating speed, and extremely durable deep groove ball bearing.
The power delivery mode of pure electric vehicle double-motor driving device of the present utility model is as follows：
Winding in first motor stator 7 is powered, and is converted electrical energy into by the electromagnetic field of the rotor of the first motor
The first rotor 8 is rotated into mechanical energy, power passes through the first train of reduction gears (first gear portion on the first motor shaft 16
16a, the first reduction gearing 3) and final gear group (jackshaft 1, main deceleration driven gear 21) pass to differential carrier 20, pass through
Hub for vehicle wheel is passed to after differential assembly differential, so as to drive vehicle to travel.
Winding in second motor stator 30 is powered, and is converted electrical energy into by the electromagnetic field of the second motor rotor
Mechanical energy rotates the second rotor 31, and power passes through the second train of reduction gears (second gear portion on the second motor shaft 33
33a, the second reduction gearing 26) and final gear group (jackshaft 1, main deceleration driven gear 21) pass to differential carrier 20,
Hub for vehicle wheel is passed to after differential assembly differential, so as to drive vehicle to travel.
In vehicle travel process, the specific works pattern of pure electric vehicle double-motor driving device of the present utility model is such as
Under：
(1) when vehicle is at the uniform velocity travelled or running resistance is little, synchronizer 2 disconnects with the first reduction gearing 3, the first driving
Motor is not worked, and vehicle is operated alone by the second motor, and the second motor can be made to be in higher efficiency area work, subtracted
The consumption of few battery electric quantity.
(2) when vehicle promptly accelerates or vehicle is travelled on the slope road of great slope, the first motor is started working
Drive the first reduction gearing 3 to rotate, when the speed discrepancy of the first reduction gearing 3 and synchronizer 2, which is met, to be required, driven by shift fork
Synchronizer 2 is engaged with the first reduction gearing 3, and the first motor participates in power output, it is ensured that the dynamic property of vehicle.
(3) when vehicle deceleration is travelled or braked, synchronizer 2 disconnects with the first reduction gearing 3, the first motor
Do not work, the second motor generates electricity, and now the second motor is in higher efficiency area, can make more braking energies
Change into battery electric quantity.
(4) when vehicle backing is travelled, synchronizer 2 disconnects with the first reduction gearing 3, and the first motor is stopped,
Second motor is inverted, and makes vehicle travel backwards.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
Protection domain of the present utility model is also should be regarded as with retouching.
Claims (10)
1. a kind of pure electric vehicle double-motor driving device, it is characterised in that including driving chamber and be placed in the driving chamber
In the first motor, the second motor, decelerator and differential mechanism, the driving chamber is by the first electric machine casing and being fixed on
First electric motor end cap and the second electric machine casing of first electric machine casing one end and it is fixed on the second of second electric machine casing one end
Electric motor end cap is collectively forming, and the other end of the other end of first electric machine casing and second electric machine casing is connected with each other,
The driving chamber is divided into the first motor chamber, decelerator chamber and the second motor chamber；
First motor shaft of first motor stretches into the decelerator chamber, first electricity through the first motor chamber
The two ends of arbor are supported on first electric machine casing and first electric motor end cap respectively；The of second motor
Two motor shafts stretch into the decelerator chamber through the second motor chamber, and the two ends of second motor shaft are supported on respectively
On second electric machine casing and second electric motor end cap；The decelerator and the differential mechanism are arranged in the decelerator chamber
Interior, the decelerator includes the first train of reduction gears, the second train of reduction gears and final gear group, and it is poor that the differential mechanism includes
Fast device shell and planetary gear, left half axle gear and the right axle shaft gear being arranged in the differential carrier,
Wherein, first train of reduction gears includes intermeshing first deceleration driving gear and the first deceleration driven gear,
First deceleration driving gear and first motor shaft are coaxially disposed and driven by first motor shaft and rotated, and described the
One deceleration driven gear is connected on a jackshaft, and the two supports of the jackshaft are in first electric machine casing and described
On two electric machine casings；Second train of reduction gears includes intermeshing second deceleration driving gear and the second deceleration passive tooth
Wheel, second deceleration driving gear is coaxially disposed with second motor shaft and driven by second motor shaft and rotated, institute
The second deceleration driven gear is stated to be connected on the jackshaft；The final gear group includes being intermeshed main deceleration driving tooth
Wheel and main deceleration driven gear, the main deceleration driving gear, which is coaxially disposed with the jackshaft and driven by the jackshaft, to be turned
Dynamic, the main deceleration driven gear is fixedly connected on the differential carrier；The Formation of Axle Shaft Spline of the left half axle gear and vehicle
Connection, with the wheel for the side for driving vehicle, the right axle shaft gear is connected with the external splines on output shaft, the output shaft from
First motor shaft is passed through and is connected by the internal spline on the output shaft with the Formation of Axle Shaft Spline of the vehicle, to drive car
Opposite side wheel；
One in the first deceleration driven gear and the second deceleration driven gear optionally with the jackshaft
Engaged and disconnected, first motor shaft, the jackshaft and second motor shaft are set parallel to each other.
2. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that described first, which slows down, leads
Moving gear is integrally formed with first motor shaft, and second deceleration driving gear is integrally formed with second motor shaft,
The main deceleration driving gear is integrally formed with the jackshaft.
3. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that the first deceleration quilt
Moving gear is supported on the jackshaft by needle bearing, the second deceleration driven gear by spline be connected to it is described in
On countershaft.
4. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that the first deceleration quilt
Moving gear is connected on the jackshaft by spline, the second deceleration driven gear by needle bearing be supported on it is described in
On countershaft.
5. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that set on the jackshaft
Parking gear and synchronizer are equipped with, the parking gear is connected with the jackshaft by spline and connected with outside halting mechanism
Connect, the tooth set of the synchronizer is connected by spline with the jackshaft, the synchronizer is arranged on described first and slowed down passively
The left side of gear or the second deceleration driven gear is simultaneously connected with exterior operator, and the outside structure that performs is by stirring
During clutch collar on the synchronizer comes the real first deceleration driven gear or the second deceleration driven gear and is described
The engagement and disconnection of countershaft.
6. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that the first driving electricity
Machine also includes the first motor stator and the first rotor, the first motor rotation transformation being placed on first motor shaft
Device, the first motor rotary transformer is arranged in the outer end of first motor shaft and positioned at the inner face of the first electric motor end cap
Position at；
Second motor also include being placed in the second motor stator and the second rotor on second motor shaft,
Second motor rotary transformer, the second motor rotary transformer is arranged in the outer end of second motor shaft and positioned at second
At the position of the inner face of electric motor end cap.
7. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that the output shaft support
On the rear end cap that first electric motor end cap is connected, it is provided with to enter the semiaxis of the vehicle on second electric machine casing
Sealed half sealing of row, is provided with end cap sealedly output sealing is carried out to output shaft in the rear.
8. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that described first, which slows down, leads
Moving gear, the first deceleration driven gear, second deceleration driving gear, the second deceleration driven gear, the master
Deceleration driving gear and the main deceleration driven gear are all helical gear.
9. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that first motor casing
Between body and first electric motor end cap, between second electric machine casing and second electric motor end cap and first electricity
It is bolted between casing body and second electric machine casing, the main deceleration driven gear passes through with the differential carrier
Riveting, welding or bolt connection and be fixed together.
10. pure electric vehicle double-motor driving device according to claim 1, it is characterised in that first driving
Motor and second motor are permagnetic synchronous motor or AC induction motor；
It is respectively formed with first electric machine casing and second electric machine casing to first motor stator and described
The cooling pipe that two motor stators are cooled down.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808989A (en) * | 2017-03-03 | 2017-06-09 | 中国第汽车股份有限公司 | A kind of pure electric vehicle double-motor driving device |
| CN109318697A (en) * | 2018-10-26 | 2019-02-12 | 蔚来汽车有限公司 | Dynamical system, vehicle, control system and the control method of vehicle |
| CN110228363A (en) * | 2018-03-05 | 2019-09-13 | 本田技研工业株式会社 | Power device |
| CN111016629A (en) * | 2019-12-31 | 2020-04-17 | 西南大学 | Central driven double-motor integrated power system |
| US20210138899A1 (en) * | 2018-03-29 | 2021-05-13 | Dana Automotive Systems Group, Llc | Integrated power source and housing |
| US20220396136A1 (en) * | 2019-10-24 | 2022-12-15 | Volvo Truck Corporation | A vehicle axle, in particular a motorized axle, on which several electric motors are mounted |
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2017
- 2017-03-03 CN CN201720202089.9U patent/CN206528311U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808989A (en) * | 2017-03-03 | 2017-06-09 | 中国第汽车股份有限公司 | A kind of pure electric vehicle double-motor driving device |
| CN110228363A (en) * | 2018-03-05 | 2019-09-13 | 本田技研工业株式会社 | Power device |
| US20210138899A1 (en) * | 2018-03-29 | 2021-05-13 | Dana Automotive Systems Group, Llc | Integrated power source and housing |
| US11639102B2 (en) * | 2018-03-29 | 2023-05-02 | Dana Automotive Systems Group, Llc | Integrated power source and housing |
| CN109318697A (en) * | 2018-10-26 | 2019-02-12 | 蔚来汽车有限公司 | Dynamical system, vehicle, control system and the control method of vehicle |
| US20220396136A1 (en) * | 2019-10-24 | 2022-12-15 | Volvo Truck Corporation | A vehicle axle, in particular a motorized axle, on which several electric motors are mounted |
| US11850929B2 (en) * | 2019-10-24 | 2023-12-26 | Volvo Truck Corporation | Vehicle axle, in particular a motorized axle, on which several electric motors are mounted |
| CN111016629A (en) * | 2019-12-31 | 2020-04-17 | 西南大学 | Central driven double-motor integrated power system |
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