CN209683346U - A kind of electric car rear wheel drive structure with integral drive rear axle - Google Patents
A kind of electric car rear wheel drive structure with integral drive rear axle Download PDFInfo
- Publication number
- CN209683346U CN209683346U CN201920260507.9U CN201920260507U CN209683346U CN 209683346 U CN209683346 U CN 209683346U CN 201920260507 U CN201920260507 U CN 201920260507U CN 209683346 U CN209683346 U CN 209683346U
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- CN
- China
- Prior art keywords
- power assembly
- leaf spring
- shaft
- rear axle
- telescopic
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The utility model discloses a kind of electric car rear wheel drive structures with integral drive rear axle, including stringer, power assembly attachment rail, integral drive rear axle；Integral drive rear axle includes banjo axle, power assembly, telescopic universal drive shaft, semiaxis, leaf spring mounting plate and the rear axle rigid connecting rod for connecting leaf spring mounting plate that power assembly both ends are sequentially connected；Leaf spring mounting plate is equipped with leaf spring, and half outer shaft sleeve is equipped with brake drum；Telescopic universal drive shaft includes telescopic shaft outer shaft, telescopic shaft inner shaft and flexible dustproof cover, and the power assembly attachment rail includes the sliding rail of crossbeam between stringer, below the crossbeam, rear wheel drive structure further include control leaf spring bounce stop leaf spring limit it is secondary.The utility model rear wheel drive structure reduces rear axle self weight, realizes the adjusting of power assembly position, increases the arrangement and assembly space of power battery pack, improves integral drive Rear Axle and load, and vibration is small, and stability is good, designs install convenient.
Description
Technical field
The utility model relates to electric accessory motor fields, and in particular to a kind of electric car with integral drive rear axle
Rear wheel drive structure.
Background technique
It is widely applied in the characteristic of electric car low-consumption high-efficiency, no pollution, but by power battery pack arrangement space
Limitation, postpone thereafter drive structural development it is slow, the delivery occasion of big load high torque can not be adapted to.Existing solution be by
Power battery pack is divided into two pieces or muti-piece is arranged, to avoid the arrangement space of transmission shaft, or by driving motor and change
The fast direct carry of case will increase the manufacture and testing expenses of power battery pack in this way, reduce power battery pack on rear axle
Safety, while the self weight of rear axle is also increased, the load of rear axle is reduced, reduces vehicle torque and passability, very not
Conducive to the popularization and application of electric car.
Summary of the invention
More in order to solve power battery pack piecemeal in the prior art, manufacture and testing expenses are high, and security performance is low, and rear axle carries
Lotus and vehicle torque are small, the technological deficiency of passability difference, and it is small that the utility model provides a kind of self weight of rear axle, power assembly installation
Position-adjustable, power battery pack arrangement space is adjustable reserved, while adjustable front and back axle load distribution there is monoblock type to drive
The electric car rear wheel drive structure of dynamic rear axle.
To achieve the goals above, the technical solution of the utility model is:
A kind of electric car rear wheel drive structure with integral drive rear axle, including be arranged between driving wheel and car body
Connected and stringer parallel to each other, the power assembly attachment rail for being arranged between stringer and being attached thereto, setting are total in power
At integral drive rear axle attachment rail lower section and be attached thereto；
The integral drive rear axle includes banjo axle, is arranged below power assembly attachment rail and is attached thereto
Power assembly, be symmetricly set on power assembly both ends and be attached thereto telescopic universal drive shaft, with telescopic universal biography
The connected leaf spring mounting plate in the connected semiaxis of moving axis, inner end close with semiaxis, the rear axle rigid connecting rod for connecting leaf spring mounting plate；Institute
Leaf spring mounting plate upper surface is stated equipped with leaf spring, half outer shaft sleeve is equipped with the brake drum of braked drive wheels, described telescopic universal
Transmission shaft is connected respectively at power assembly with semiaxis by universal joint；The rear wheel drive structure further includes control leaf spring bounce stop
Leaf spring limit is secondary；
The telescopic universal drive shaft includes the telescopic shaft outer shaft being connected with semiaxis, the telescopic shaft being connected with power assembly
Inner shaft, the flexible dustproof cover being set in outside telescopic shaft inner shaft, the telescopic shaft inner shaft are set in telescopic shaft outer shaft and slide therewith
Dynamic cooperation, flexible dustproof cover one end is connected with telescopic shaft outer shaft far from half shaft end, the other end and the nearly power of telescopic shaft inner shaft
Assembly end is connected,
The power assembly attachment rail include be arranged between stringer and crossbeam parallel to each other, be arranged in below the crossbeam
And sliding rail parallel to each other, the crossbeam both ends are connected with the stringer, and sliding therewith is equipped on the crossbeam and sliding rail and is matched
The T-bolt of conjunction, the sliding rail cooperate confinement nut to be connected with the crossbeam by T-bolt, and the power assembly passes through T-type
Bolt cooperation confines nut and is connected with the sliding rail；
Further technical solution, the leaf spring mounting plate include one end be connected with rear axle rigid connecting rod, the other end with
The connected mounting base of semiaxis, the installation ridge that mounting base upper surface is arranged in, the installation ridge setting is in mounting base nearly half
Shaft end, the installation ridge upper end are connected with semiaxis, and the mounting base is equipped with regularly arranged bolt hole, and the leaf spring passes through
U-bolt and bolt hole are connected with mounting plate upper surface；
Further technical solution, the rear axle rigid connecting rod are at least one；
Further technical solution, the power assembly include the engine being connected with power assembly attachment rail and hair
The connected gearbox of motivation, the engine are one of driving motor, diesel engine, gasoline engine, the hydraulic turbine；
Further technical solution, the integral drive rear axle include banjo axle, setting in power assembly installation
Track lower section and the power assembly being attached thereto, the driving snake for being symmetricly set on power assembly both ends and being attached thereto and biography
The connected leaf spring mounting plate in the connected semiaxis of dynamic flexible axle, inner end close with semiaxis, the rear axle rigid connecting rod for connecting leaf spring mounting plate,
The driving snake is connected respectively at power assembly with semiaxis by flexible shaft end；
Further technical solution, the leaf spring limit is secondary to be equipped with the leaf spring limited block that is connected therewith to be arranged below stringer
Above or it is arranged under the leaf spring limited block of leaf spring upper surface；
Further technical solution, crossbeam and the stringer in the power assembly attachment rail are removably
Connection；
Further technical solution, the rear wheel drive structure suitable for rear-guard, 4 wheel driven, the driving method driven more.
Compared with prior art, the utility model has the beneficial effects that after the utility model one kind has integral drive
The electric car rear wheel drive structure of bridge is provided with the adjustable power assembly attachment rail of integral drive rear axle and position, changes existing
There is rear wheel drive structure by the mode of driving rear axle carrying power assembly weight, power assembly weight is carried by power assembly attachment rail
Amount reduces rear axle self weight, improves back axle load, realize the carrying capacity of high torque big load, while reducing existing whole
Driving motor is mounted on the covibration generated on rear axle in body formula rear axle, improves whole vehicle stability；And power assembly mounting rail
The setting in road has effectively avoided the arrangement space of power battery pack, at the same realize that axle load between the wheel shaft of front and back distributes can
It adjusts；Telescopic Universal drive axis connection is used between the power assembly and driving wheel of the utility model, can effectively absorb vehicle
Wheel vibration, cooperation power assembly attachment rail realize the adjustable of power assembly rigging position, it is ensured that the riding stability of vehicle
And passability, moreover it is possible to it is dust-proof, it is suitble to a variety of running environments.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial structure diagram of the integral drive rear axle of the utility model.
Fig. 3 is the structural schematic diagram of the telescopic universal drive shaft of the utility model.
Fig. 4 is the cross-sectional view of the telescopic universal drive shaft of the utility model.
Fig. 5 is the structural schematic diagram of the power assembly attachment rail of the utility model.
Fig. 6 is the structural schematic diagram of the power assembly of the utility model.
Wherein: 1, right driving wheel；2, telescopic universal drive shaft；3, driving motor；4, gearbox；5, after integral drive
Bridge；6, flexible dustproof cover；7, under leaf spring limited block；8, left driving wheel；9, on leaf spring limited block；10, left stringer；11, front beam；
12, rear cross beam；13, left sliding rail；14, T-bolt；15, right sliding rail；16, right vertical beam；17, right brake drum；18, right panel spring is installed
Plate；19, rear axle rigid connecting rod；20, left plate spring mounting plate；21, left brake drum；22, left half axle；23, right axle shaft；24, universal
Section；25, telescopic shaft inner shaft；26, telescopic shaft outer shaft；27, leaf spring
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.
As shown in figures 1 to 6, a kind of electric car rear wheel drive structure with integral drive rear axle, including be arranged in right driving
The left stringer 10 and right vertical beam 16 that are connected between wheel 1 and left driving wheel 8 and with car body, setting left stringer 10 and right vertical beam 16 it
Between and be attached thereto power assembly attachment rail, the monoblock type that below power assembly attachment rail and is attached thereto be set drive
Dynamic rear axle；The left stringer 10 and right vertical beam 16 are parallel to each other along car body direction；
The integral drive rear axle include rigid banjo axle, be arranged below power assembly attachment rail and with
Connected power assembly, be connected with power assembly telescopic universal drive shaft 2, be connected with telescopic universal drive shaft 2
Semiaxis (22,23), the leaf spring mounting plate (18,20) being connected with semiaxis (22,23), after being connected with leaf spring mounting plate (18,20)
Bridge rigid connecting rod 19, the leaf spring mounting plate (18,20) includes the left plate for being symmetricly set on 19 both ends of rear axle rigid connecting rod
Spring mounting plate 20 and right panel spring mounting plate 18, the rear axle rigid connecting rod 19 are at least one；
20 other end of left plate spring mounting plate is connected with the nearly inner end of the left half axle 22, is arranged on the left half axle 22
Brake the left brake drum 21 of left driving wheel 8, the inner end of the left half axle 22 is connected with left telescopic universal drive shaft 2, outer end and
The wheel hub of the left driving wheel 8 is connected；
18 other end of right panel spring mounting plate is connected with the nearly inner end of the right axle shaft 23, is arranged on the right axle shaft 23
Brake the right brake drum 17 of right driving wheel 1, the inner end of the right axle shaft 23 is connected with left telescopic universal drive shaft 2, outer end and
The wheel hub of the right driving wheel 1 is connected；
The leaf spring mounting plate (20,18) includes mounting base, the installation ridge that mounting base upper surface is arranged in, the peace
It fills ridge setting to hold in the nearly semiaxis of mounting base (22,23), the installation ridge upper end is connected with semiaxis (22,23), the installation bottom
Plate is equipped with regularly arranged bolt hole, and the mounting plate upper surface is equipped with leaf spring 27, and 27 bottom end of leaf spring passes through U-bolt
Be connected with bolt hole with the mounting plate, front end is connected by flat spring bracket with the stringer (10,16), rear end passes through lifting lug and
Shackle bracket is connected with the stringer (10,16)；Leaf spring on the left plate spring mounting plate 20 is connected with the left stringer 10, institute
The leaf spring stated on right panel spring mounting plate 18 is connected with the right vertical beam 16；Control leaf spring 27 is additionally provided on the rear wheel drive structure to beat
The leaf spring of stop limit it is secondary, the leaf spring limit it is secondary for be arranged under the leaf spring limited block that 27 upper surface of leaf spring is connected therewith 7 or
It is arranged 9 on the leaf spring limited block being connected therewith below stringer (10,16), the rear wheel drive structure, which limits pair by leaf spring, prevents plate
Spring 27, which is beated, excessive generates interference with telescopic universal drive shaft 2；The stringer (10,16) is equipped with and the corresponding leaf spring
The connected damper of mounting plate (20,18)；
The power assembly includes the driving motor 3 being connected with power assembly attachment rail, be connected speed change with driving motor 3
Case 4,4 both ends of gearbox are symmetrically arranged with the telescopic universal drive shaft 2 being attached thereto, the telescopic universal drive shaft 2
It is connected respectively at gearbox 4 with semiaxis (22,23) by universal joint 24；
The telescopic universal drive shaft 2 includes telescopic shaft outer shaft 26, is set in telescopic shaft outer shaft 26 and slides therewith
The telescopic shaft inner shaft 25 of cooperation, the flexible dustproof cover 6 being set in outside telescopic shaft inner shaft 25, described 26 one end of telescopic shaft outer shaft are arranged
Be arranged in telescopic shaft inner shaft 25 it is outer and be connected with one end of flexible dustproof cover 6, the other end by universal joint 24 and semiaxis (22,
23) it is connected, described 25 one end of telescopic shaft inner shaft is set in flexible telescopic shaft outer shaft 26, the other end is set in flexible dustproof cover 6
It is interior and be connected with 6 other end of flexible dustproof cover, the end of the nearly flexible dustproof cover 6 of the telescopic shaft inner shaft 25 by universal joint 24 with
Gearbox 4 is connected, and relative rotation and slide axially of the flexible dustproof cover 6 with telescopic shaft inner shaft 25 in telescopic shaft outer shaft 26 is stretched
Contracting and rotary extension is realized and prevents dust into telescopic universal drive shaft 2；
The power assembly attachment rail includes the front beam 11 being arranged between left stringer 10 and right vertical beam 16 and rear cross
Beam 12, the left sliding rail 13 and right sliding rail 15 being arranged in below front beam 11 and rear cross beam 12, the front beam 11 and rear cross beam 12
Parallel to each other, its both ends are connected with front beam 11, rear cross beam 12 respectively, and crossbeam (11, the 12) lower end surface, which is equipped with, to be convenient for and cunning
The connected T-type sliding slot of rail (13,15), the sliding slot is interior to be equipped with T-bolt 14, and the left sliding rail 13 and right sliding rail 15 are mutually equal
Row, its both ends are connected with front beam 11, rear cross beam 12 respectively, and the sliding rail (13,15) is equipped with convenient for power assembly installation
Mounting groove, the mounting groove is interior to be equipped with T-bolt 14, and the sliding rail (13,15) is cooperated tightly by the T-bolt 14 of T-type sliding slot
Gu nut and crossbeam (11,12) are connected, the position-adjustable of sliding rail (13,15) relatively left stringer 10 or right vertical beam 16, institute are realized
It states driving motor 3 and cooperates fastening nut and sliding rail (13,15) to be connected by the T-bolt 14 in mounting groove, realize driving motor 3
The position-adjustable of opposite front beam 11 or rear cross beam 12, the final position for realizing power assembly can be by adjusting the driving electricity
Machine 3 is adjusted and is assembled with respect to the position of crossbeam (11,12) or the position of sliding rail (13,15) opposing side rails (10,16), is also realized
Axle load distribution between front-wheel connecting shaft and rear-wheel connecting shaft, while enough installation skies are provided for the installation of power battery pack
Between；
The power assembly can also be that the engines such as diesel engine, gasoline engine, the hydraulic turbine and gearbox 4 form；
The telescopic universal drive shaft 2 could alternatively be driving snake, and the driving snake is distinguished by flexible shaft end
It is connected with the gearbox 4 and semiaxis (22,23)；
Front beam 11 and rear cross beam 12 and stringer (10,16) in the power assembly attachment rail are to be connected through a screw thread
It is connected etc. dismountable mode；
The rear wheel drive structure of the utility model can be adapted in the driving method of rear-guard, can be applicable to 4 wheel driven or more drives
In the driving method of driving；The integral drive rear axle of the utility model is different from existing beam rear axle, by axle housing and passes
Moving axis, semiaxis separation, the installation site of power assembly and weight are determined by power assembly attachment rail and are carried, will also move
Connection between power assembly and driving wheel realizes that this not only lowers after integral drive by telescopic universal drive shaft 2
Self weight in bridge improves the load of rear axle, reduces driving motor in existing beam rear axle and is mounted on and generates on rear axle
Covibration improves the stability of vehicle, and the intensity and torque of vehicle are increased by the rigidity of axle housing, also by telescopic
Universal drive shaft 2 effectively absorbs and adjusts the wheel hop in driving conditions, by power assembly attachment rail and telescopic
Universal drive shaft 2 adjusts power assembly position, increases power battery pack arrangement space and property easy to assembly, and flexible
Flexible dustproof sheath rotatable flexible on formula universal drive shaft 2, can be dust-proof, adapt to a variety of running environments；
Before use, user installs power assembly attachment rail, the especially installation of sliding rail (12,14) as needed, need
Carry out reserved space in conjunction with the installation requirements of battery pack and the layout of power assembly, adjust installation site, reasonable distribution front and back wheel company
Then axle load between spindle installs other component until rear wheel drive structure is installed；Vehicle can be used after being installed, and make
Electric power is transmitted to the driving motor 3 in power assembly by used time, battery pack, and driving motor 3 converts electric energy to mechanical energy and transmits
To gearbox 4, torque is transmitted to left half axle 22 and right axle shaft 23,22 He of left half axle by telescopic universal drive shaft 2 by gearbox 4
Right axle shaft 23 imparts power to corresponding left driving wheel 8 and right driving wheel 1 respectively, so that it is generated tractive force and reaches vehicle driving
Purpose；The integral drive rear axle of the application bear between road surface and vehicle frame or vehicle body vertically, longitudinally and transversely acting
Power；The electric car for being equipped with the application rear wheel drive structure can also reasonably be divided power by differential mechanism as existing automobile
Dispensing left driving wheel 8 and right driving wheel 1 make left and right sidesing driving wheel (8,1) have reasonable rotational speed difference, meet electric car and are not going the same way
Condition downward driving.
Be not specifically noted in all the utility model specifications be the prior art or can by existing technology
It realizes, it should be appreciated that for those of ordinary skills, under the premise of no creative, according to the above description
To improvement or transformation that the technical solution of the utility model carries out, the protection scope of the utility model is belonged to.
Claims (8)
1. a kind of electric car rear wheel drive structure with integral drive rear axle, including setting are between driving wheel and parallel to each other
Stringer, the stringer and car body are connected, it is characterised in that: further include that the power assembly between stringer and being attached thereto is arranged in
Attachment rail, the integral drive rear axle for being arranged in below power assembly attachment rail and being attached thereto；The integral drive
Rear axle includes banjo axle, the power assembly below power assembly attachment rail and being attached thereto is arranged in, is symmetricly set on
Power assembly both ends and the telescopic universal drive shaft being attached thereto, the semiaxis and semiaxis that are connected with telescopic universal drive shaft
The connected leaf spring mounting plate in nearly inner end, the rear axle rigid connecting rod for connecting leaf spring mounting plate；Leaf spring mounting plate upper surface is set
There is leaf spring, half outer shaft sleeve is equipped with the brake drum of braked drive wheels, and the telescopic universal drive shaft is distinguished by universal joint
It is connected in power assembly with semiaxis；The rear wheel drive structure further includes the leaf spring limit pair for controlling leaf spring bounce stop；
The telescopic universal drive shaft includes the telescopic shaft outer shaft being connected with semiaxis, in the telescopic shaft being connected with power assembly
Axis, the flexible dustproof cover being set in outside telescopic shaft inner shaft, the telescopic shaft inner shaft are set in telescopic shaft outer shaft and slide therewith
Cooperation, flexible dustproof cover one end is connected with telescopic shaft outer shaft far from half shaft end, the other end and the nearly power of telescopic shaft inner shaft are total
It is connected at end；
The power assembly attachment rail include be arranged between stringer and crossbeam parallel to each other, setting below the crossbeam and mutually
Parallel sliding rail, the crossbeam both ends are connected with the stringer, and the T being slidably matched therewith is equipped on the crossbeam and sliding rail
Type bolt, the sliding rail cooperate confinement nut to be connected with the crossbeam by T-bolt, and the power assembly passes through T-bolt
Cooperation confines nut and is connected with the sliding rail.
2. the electric car rear wheel drive structure according to claim 1 with integral drive rear axle, it is characterised in that: described
Leaf spring mounting plate includes the mounting base that one end is connected with rear axle rigid connecting rod, the other end is connected with semiaxis, is arranged and is installing
The installation ridge of bottom plate upper surface, the installation ridge are arranged in nearly half shaft end of mounting base, and the installation ridge upper end is connected with semiaxis,
The mounting base is equipped with regularly arranged bolt hole, and the leaf spring passes through U-bolt and bolt hole and mounting plate upper surface
It is connected.
3. the electric car rear wheel drive structure according to claim 1 with integral drive rear axle, it is characterised in that: described
Rear axle rigid connecting rod is at least one.
4. the electric car rear wheel drive structure according to claim 1 with integral drive rear axle, it is characterised in that: described
The gearbox that power assembly includes the engine being connected with power assembly attachment rail, is connected with engine, the engine are
One of driving motor, diesel engine, gasoline engine, hydraulic turbine.
5. the electric car rear wheel drive structure according to claim 1 with integral drive rear axle, it is characterised in that: described
Integral drive rear axle include banjo axle, be arranged in the power assembly below power assembly attachment rail and being attached thereto,
Be symmetricly set on power assembly both ends and be attached thereto driving snake, be connected with driving snake semiaxis, inner end close with semiaxis
The rear axle rigid connecting rod of connected leaf spring mounting plate, connection leaf spring mounting plate, the driving snake pass through flexible shaft end and distinguish
It is connected in power assembly with semiaxis.
6. the electric car rear wheel drive structure according to claim 1 with integral drive rear axle, it is characterised in that: described
Secondary leaf spring limit is that the leaf spring limit for being equipped with below stringer and being connected on leaf spring limited block or be arranged in leaf spring upper surface therewith is arranged in
Under the block of position.
7. the electric car rear wheel drive structure according to claim 1 with integral drive rear axle, it is characterised in that: described
Crossbeam in power assembly attachment rail is removably connect with the stringer.
8. the electric car rear wheel drive structure according to claim 1 with integral drive rear axle, it is characterised in that: described
Rear wheel drive structure suitable for rear-guard, 4 wheel driven, the driving method driven more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260507.9U CN209683346U (en) | 2019-03-01 | 2019-03-01 | A kind of electric car rear wheel drive structure with integral drive rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260507.9U CN209683346U (en) | 2019-03-01 | 2019-03-01 | A kind of electric car rear wheel drive structure with integral drive rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209683346U true CN209683346U (en) | 2019-11-26 |
Family
ID=68603318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920260507.9U Expired - Fee Related CN209683346U (en) | 2019-03-01 | 2019-03-01 | A kind of electric car rear wheel drive structure with integral drive rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209683346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849589A (en) * | 2019-03-01 | 2019-06-07 | 南京林业大学 | A kind of electric car rear wheel drive structure with integral drive rear axle |
-
2019
- 2019-03-01 CN CN201920260507.9U patent/CN209683346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849589A (en) * | 2019-03-01 | 2019-06-07 | 南京林业大学 | A kind of electric car rear wheel drive structure with integral drive rear axle |
| CN109849589B (en) * | 2019-03-01 | 2024-01-26 | 南京林业大学 | Electric automobile rear drive structure with integral drive rear axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 Termination date: 20210301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |