CN207715657U - A kind of pure electric automobile power failure-free manual transmission - Google Patents
A kind of pure electric automobile power failure-free manual transmission Download PDFInfo
- Publication number
- CN207715657U CN207715657U CN201721218730.4U CN201721218730U CN207715657U CN 207715657 U CN207715657 U CN 207715657U CN 201721218730 U CN201721218730 U CN 201721218730U CN 207715657 U CN207715657 U CN 207715657U
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- Prior art keywords
- gear
- clutch
- freewheel clutch
- control
- roller
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model provides a kind of pure electric automobile power failure-free manual transmission,The gearbox is by input shaft,First gear is to mechanism,Second gear is to mechanism,Diaphragm spring clutch,Output shaft and shift control mechanism composition,The shift control mechanism includes control gear pair mechanism,One gear freewheel clutch,Control the roller control mechanism of freewheel clutch and a gear freewheel clutch,The one gear freewheel clutch is double rolling key clutch,The one gear driven gear inner surface and a gear freewheel clutch inner ring outer surface form wedge shape space,The both ends of the wedge shape space are two wedge-shaped locking surfaces being oppositely arranged,One end is that a gear runs locking surface,The other end is operation locking surface of reversing gear,Traveling of reversing gear is kept off with one gear forward travel of realization and one,The utility model is by first gear to advancing or reversing gear,Solve that second gear is too fast to speed of reversing gear and the safety problem of freewheel clutch clamping stagnation.
Description
Technical field
The utility model belongs to pure electric automobile drive technology field, and in particular to a kind of pure electric automobile power failure-free
Manual transmission.
Background technology
China's pure electric automobile is quickly grown at present, has occurred large-scale pure electric automobile, pure electric vehicle in the market
Automobile comes into the large-scale production stage.
There are many drive schemes of pure electric automobile, for example, motor acceleration and deceleration device straight drive scheme, this kind of drive
Ride comfort is good, but very high to the performance requirement of dynamo battery, and vehicle cannot take into account the comprehensive performance of low speed and high speed simultaneously.Such as
Fruit will take into account the low speed climbing capacity of vehicle and ability of running at high speed, and improve motor running efficiency, then motor needs to install additional more
Gear gearbox, this scheme then greatly reduce requirement of the vehicle to dynamo battery.
Since the characteristic of motor low speed permanent torque high speed invariable power makes its demand to gearbox gear quantity not be
Very much, but the transmission efficiency to gearbox and the requirement of shift speed change comfort are very high.The transmission of power failure-free shift at present
Scheme has contiuously variable transmission CVT, double-clutch speed changer DCT etc., these schemes are complicated for pure electric automobile, cost
It is higher, and itself transmission efficiency is relatively low.Electric control mechanical type automatic speed variator AMT has the advantages that transmission efficiency, but passes
Uniting, there are power interruptions for electric control mechanical type automatic speed variator shift process, influence the ride comfort of vehicle traveling.In addition, tradition machinery
The operating mechanism of formula automatic gear-box includes selector fork and selector fork axis, and which increase transmission dimensions, increase cost.
It can be seen that develop be specifically applied to electric vehicle simple, efficient, power failure-free shift special gear box it is very necessary.
Application No. is 2016104732436 patent propose a kind of electric vehicle power failure-free manual transmission and its
Shift control method, described in power failure-free manual transmission tool there are two gear, shifted gears by freewheel clutch,
Realize shift process power failure-free.But the gearbox is by second gear to reversing gear, due to two gear speed ratios compared with
Greatly so that speed is very fast when reversing gear；In addition, by second gear to reversing gear when, there are clamping stagnation is existing for a gear freewheel clutch
As these can all lead to Exploration on Train Operation Safety.
Invention content
Defect present in for the above-mentioned prior art, the utility model provide a kind of novel pure electric automobile without dynamic
Power interrupts manual transmission, realizes through first gear to advancing or reverse gear, solve second gear it is too fast to speed of reversing gear and
The safety problem of freewheel clutch clamping stagnation.In conjunction with Figure of description, the technical solution of the utility model is as follows：
A kind of pure electric automobile power failure-free manual transmission, by input shaft 1, first gear to mechanism, second gear
To mechanism, diaphragm spring clutch, output shaft 17 and shift control mechanism composition, the shift control mechanism includes control gear
To the roller control mechanism of mechanism, a gear freewheel clutch, control freewheel clutch and a gear freewheel clutch, a gear
Freewheel clutch is double rolling key clutch, and traveling of reversing gear is kept off with one gear forward travel of realization and one；
The gear driven gear that the one gear freewheel clutch is an integral structure by the outer ring with double rolling key clutch
19, a gear freewheel clutch inner ring 18, roller toggle mechanism, roller A22 and the preloading spring A23 being connected on output shaft 17
Composition；
One gear 19 inner surface of driven gear and 18 outer surface of a gear freewheel clutch inner ring form wedge shape space, described
The both ends of wedge shape space are two opposite wedge locking surfaces, and one end is that a gear runs locking surface, and the other end is the operation locking that reverses gear
Face；
Roller A22 is pre-tightened the gear operation locking in wedge shape space by preloading spring A23 by the roller rolling retainer 20
In face.
The control freewheel clutch controls transmission reverse gear so that gearbox is respectively in a gear, two gears and operation of reversing gear
When unpowered interference.
Compared with prior art, the beneficial effects of the utility model are：
1, a gear freewheel clutch of the utility model uses double rolling key clutch, can realize that a gear advances and falls
Gear, speed is very fast when solving the problems, such as the prior art by second gear to reversing gear, and effectively eliminates freewheel clutch and deposit
Clamping stagnation etc. safety problems.
2, the utility model controls the double rolling key clutch of a gear by a pair of control gear, to realize that a gear advances
With reverse gear, solve in conventional solution and cannot achieve a gear by the gearbox designs of mono-directional overrun clutch passing power
The problem of reversing gear.
3, the utility model solves the problems, such as that traditional AMT shifting powers interrupt, and can realize that power failure-free is shifted gears, rise
Gear or the dynamic output always of downshift process gearbox, the ride comfort of shift process are improved, and the speed ratio of smooth-going may be implemented
Handoff procedure.
4, the utility model does not have conventional gearbox synchronizer structure, does not need individual synchronizer executing agency, entirely
Only there are one clutch actuating mechanisms for gearbox to realize gear shifting action, and production cost is low, and control is simple.
5, the utility model uses dry clutch, improves drive system efficiency；In addition, the diaphragm spring clutch
Both can also be multidisc clutch for single disc clutch, either normally disengaged clutch can also be normal-close clutch
Device, widely applicable, application is strong.
6, the utility model can be directly by motor reversal, and the executing agency without increasing additional, which can realize, reverses gear
Operation.
7, the utility model also eliminates selector fork and shift fork axle, has simplified system structure significantly, alleviates speed changer
Total weight.
Description of the drawings
Fig. 1 is structure schematic diagram when power failure-free manual transmission one described in the utility model keeps off state；
Fig. 2 is structure schematic diagram when power failure-free manual transmission two described in the utility model keeps off state；
Fig. 3 is a gear freewheel clutch and its roller control in power failure-free manual transmission described in the utility model
The mounting structure schematic diagram of mechanism processed；
Fig. 4 is power failure-free manual transmission described in the utility model, a work when gear freewheel clutch one is kept off
Status diagram；
Fig. 5 is power failure-free manual transmission described in the utility model, a work when gear freewheel clutch two is kept off
Status diagram；
Fig. 6 is power failure-free manual transmission described in the utility model, a work when gear freewheel clutch reverses gear
Status diagram；
Fig. 7 is power failure-free manual transmission described in the utility model, work when control freewheel clutch reverses gear
Status diagram；
Fig. 8 is diaphragm spring clutch and output shaft in the electric vehicle power failure-free manual transmission of the utility model
Connection diagram is installed.
In figure：
1- input shafts, the gear driving gears of 2- mono-, 3- active control gears,
4- controls freewheel clutch inner ring, 5- two gear driving gears, and 6- bis- keeps off driven gear,
7- clutch friction plates, 8- clutch compressing discs, 9- clutch diaphragm springs,
10- thrust bearings, 11- clutch levers, 12- first bearings,
13- second bearings, the driven control gears of 14-, 15- control platen,
16- controls friction plate, 17- output shafts, and 18- mono- keeps off freewheel clutch inner ring,
The gear driven gears of 19- mono-, 20- roller rolling retainers, 21- waveform springs,
22- rollers A, 23- preloading spring A, 24- roller B,
25- preloading springs B, 27- retarder driving gear.
Specific implementation mode
In order to which the technical solution of the utility model is expanded on further, in conjunction with Figure of description, the specific reality of the utility model
It is as follows to apply mode：
Generally, gearbox described in the utility model is mainly made of three pairs of gear mesh and three groups of clutches, three groups from
Clutch includes：One double rolling key clutch, a mono-directional overrun clutch and a diaphragm spring clutch；Three pairs of gears
To including：The gear mesh of two pairs of different drive ratios of corresponding two gears, and a pair is between other two pairs of gear mesh
Gear mesh for controlling freewheel clutch；And the transmission ratio for controlling the gear mesh of freewheel clutch is more than first gear pair
Transmission ratio.
As shown in fig. 1, fig. 2 and fig. 8, the utility model discloses a kind of pure electric vehicle power failure-free manual transmission,
By input shaft 1, first gear to mechanism, second gear to mechanism, diaphragm spring clutch, output shaft 17 and shift control machine
Structure forms.
The first gear is kept off driving tooth 2 and is mounted on one on output shaft 17 to mechanism by being connected in one on input shaft 1
Gear driven gear 19 is connected by meshing transmission composition；The second gear keeps off driving tooths to mechanism by be connected on input shaft 1 two
Wheel 5 is connected by meshing transmission composition with two gear driven gears 6 being mounted on output shaft 17 by first bearing 12；The shift
Control mechanism is located at first gear to mechanism and second gear between mechanism.
As shown in Figure 1 and Figure 2, the shift control mechanism includes a gear freewheel clutch, control freewheel clutch, control
The roller control mechanism of gear pair mechanism and a gear freewheel clutch；
As shown in Figure 1 and Figure 2, the gear freewheel clutch is mounted in a gear driven gear 19, a gear freewheel clutch
Inner ring 18 is connected on output shaft 17, and a gear freewheel clutch outer ring is an integral structure with a gear driven gear 19；The control
Freewheel clutch processed is mounted in the first control gear 3, and control freewheel clutch inner ring 4 is connected on input shaft 1, and control surmounts
Clutch outer is an integral structure with the first control gear 3；
The control gear pair mechanism is pacified by the active control gear 3 on input shaft 1 with by second bearing 13
Driven control gear 14 on output shaft 17 is connected by meshing transmission composition；
The transmission ratio of the control gear pair mechanism is more than transmission ratio of the first gear to mechanism；
As shown in figure 3, the roller control mechanism of the gear freewheel clutch, by roller rolling retainer 20, preloading spring
A23, controls platen 15, and waveform spring 21 and control friction plate 16 form.
The control friction plate 16 is fixed on by outer peripheral protrusion in the groove of 20 end face of roller rolling retainer, the wave
Shape spring 21 is mounted in the annular groove of 14 end face of driven control gear；The control platen 15 is mounted on control friction plate 16
Between waveform spring 21, by 21 axial pretightening of waveform spring, control platen 15 is made to be tightly attached on control friction plate 16, it is described
Control platen 15 is fixed in the annular groove of 14 end face of driven control gear by the protrusion of inward flange with driven control
Gear 14 rotates synchronously；
The one gear freewheel clutch is double rolling key clutch, can realize advance traveling and the row that reverses gear under a gear state
It sails；
The one gear freewheel clutch by a gear driven gear 19, one keep off freewheel clutch inner ring 18, roller rolling retainer 20,
Roller A22 and preloading spring A23 compositions；
The one gear freewheel clutch outer ring is an integral structure with a gear driven gear 19, the gear driven gear 19
Inner surface and the outer surface of a gear freewheel clutch inner ring 18 form multigroup wedge shape space, the both ends of every group of wedge shape space are equal
Corresponding two wedge-shaped locking surfaces being oppositely arranged, wedge shape space one end are that a gear runs corresponding wedge shape space under locking surface, separately
One end is corresponding wedge shape space under reversing gear operation locking surface.The roller rolling retainer 20 is sleeved on a gear freewheel clutch inner ring
On 18, and between a gear freewheel clutch inner ring 18 and a gear driven gear 19, roller A22 is evenly distributed on roller holding
In roller slot on 20 circumferencial direction of frame, the rotation of roller rolling retainer 20 can drive 22 synchronizing moving of roller；The preload bullet
Spring 23 is evenly distributed in roller rolling retainer 20, and one end of preloading spring 23 and one side contacts of roller slot of roller rolling retainer 20 connect
It connects, the projection contacts connection of the other end and gear 19 inner surface of driven gear, roller rolling retainer 20 will be rolled by preloading spring 23
Column 22 pre-tightens wedge shape space one end corresponding in a gear operation locking surface.
As shown in fig. 7, the control freewheel clutch includes active control gear 3, control freewheel clutch inner ring 4, rolling
Column B24 and preloading spring B25；
The outer surface of the inner surface of the active control gear 3 and control freewheel clutch inner ring 4 forms wedge shape space, rolling
Column B24 is evenly distributed in wedge shape space, and is pre-tightened in angle of wedge one end of wedge shape space by preloading spring B25；
As shown in fig. 1, fig. 2 and fig. 8, the diaphragm spring clutch by clutch friction plate 7, clutch compressing disc 8 and pushes away
Power bearing 10 forms；
In pure electric vehicle power failure-free manual transmission described in the utility model, diaphragm spring clutch both can be with
On input shaft 1, it can also be mounted on output shaft 17：
When the diaphragm spring clutch is mounted on input shaft 1, two gear driven gears 6 and output shaft 17 are connected, from
Clutch platen 8 and clutch friction plate 7 are connected, and 10 empty set of thrust bearing moves axially on input shaft 1 on input shaft 1；
When the diaphragm spring clutch is mounted on output shaft 17, two gear driving gear 5 and input shaft 1 are connected, from
Clutch platen 8 and clutch friction plate 7 are connected, and 10 empty set of thrust bearing is axially moved on output shaft 17 on output shaft 17
It is dynamic, as shown in Figure 8.
The diaphragm spring clutch is dry multi-plate clutch or dry single disc clutch.
The course of work of the utility model pure electric automobile power failure-free manual transmission includes a gear, two gears and falls
Gear；
As shown in Figure 1, the transfer route of the gear power is followed successively by：It is passive that input shaft 1, one keeps off the gear of driving gear 2, one
Gear 19, roller A22, a gear freewheel clutch inner ring 18, output shaft 17；
As shown in Fig. 2, the transfer route of the two gears power is followed successively by：Input shaft 1, the gear of two gear driving gear 5, two are passive
Gear 6, clutch friction plate 7, clutch compressing disc 8, output shaft 17；
As shown in Figure 1, the transfer route of the power that reverses gear is followed successively by：It is passive that input shaft 1, one keeps off the gear of driving gear 2, one
Gear 19, roller A22, a gear freewheel clutch inner ring 18, output shaft 17；
One gear is switched to the operation principles of two gears and is：
When one gear, the clutch friction plate 7 in diaphragm spring clutch is detached with clutch compressing disc 8, as shown in Fig. 2, this
When, control freewheel clutch is in discrete state.When input shaft 1 rotates counterclockwise, forward travel.Due to one gear surmount from
The preload effect of preloading spring A23 in clutch so that retainer 20 pushes roller A22, and roller A22 is made to be locked at a gear quilt
In the corresponding wedge shape space of a gear operation locking surface between moving gear 19 and a gear freewheel clutch inner ring 18, a gear surmount from
Clutch passing power, as shown in figure 4, being run under one gear state of vehicle.When stopping beginning shift to two from a gear, separation shaft is pushed
Hold 10 so that the friction plate 7 of diaphragm spring clutch is gradually combined with clutch compressing disc 8, as shown in Figure 1.Due to two gear speed ratios
Less than a gear speed ratio, the rotating speed for the gear freewheel clutch inner ring 18 being fixed on output shaft 17 is more than a gear driven gear 19,
At this point, roller A22 is detached from the corresponding wedge shape space of a gear operation locking surface under the drive of a gear freewheel clutch inner ring 18, to
Locking does not occur relatively for the Internal and external cycle of space larger part movement, a gear freewheel clutch, and a gear freewheel clutch will not pass at this time
Graduating power, as shown in Figure 5.Power starts to be transmitted to two gear driven gears 6 by two gear driving gear 5, then gradually passes through diaphragm bullet
Spring clutch is transmitted to output shaft 17, and the power transmitted with diaphragm spring clutch gradually increases, and a gear freewheel clutch passes
The power passed is gradually reduced, until being zero.At this point, power is transferred to diaphragm spring clutch by second gear to mechanism completely
Device, then be transmitted on output shaft 17, as shown in figure 8, eventually by retarder driving gear 27, power output is to new with this practicality
The differential mechanism that gearbox described in type is integrated together, vehicle realize that hanging two gears advances；
Two gear is switched to the operation principle of a gear and is：
When two gears, the clutch friction plate 7 in diaphragm spring clutch is combined with clutch compressing disc 8, as shown in Figure 1, control
Freewheel clutch processed is in discrete state.Input shaft 1 rotates counterclockwise, forward travel, and vehicle power passes under two gear states
It is as described above to pass process.It is kept off to when a gear shift when from two, pulls release bearing 10 so that clutch friction plate 7 and clutch
Platen 8 is gradually disengaged, as shown in Figure 1, two gear passing powers reduce, 17 rotating speed clockwise of output shaft decline, when one gear surmount from
When 18 rotating speed clockwise of clutch inner ring and gear 19 rotating speed clockwise of driven gear reach identical, the roller of a gear freewheel clutch
The gear operation locking surface that A22 is locked between a gear driven gear 19 and a gear freewheel clutch inner ring 18 is corresponding wedge-shaped empty
In, as shown in figure 4, a gear driven gear 19 drives freewheel clutch inner ring 18 to rotate clockwise by roller A22, a gear is super
More clutch starts passing power；Power will be transmitted to a gear driven gear 19, two gear driving gear 5 by a gear driving gear 2
It will dally with two gear driven gears 6, at this point, power is transmitted to a gear driven gear 19 by a gear driving gear 2, then pass through
One gear freewheel clutch is transmitted to output shaft 17, as shown in figure 8, eventually by retarder driving gear 27, power output to
The differential mechanism that gearbox described in the utility model is integrated together, vehicle realize that hanging a gear advances；
The operation principle reversed gear is：
When reversing gear, clutch friction plate 7 is detached with clutch compressing disc 8, as shown in Fig. 2, input shaft 1 rotates clockwise, control
Freewheel clutch processed, which is in, combines lockup state, as shown in fig. 7, control freewheel clutch passing power, active control gear 3
It rotates clockwise therewith, driven control gear 14 rotates counterclockwise.One gear driven gear 19 rotates counterclockwise, and drives retainer
20 rotate counterclockwise.The transmission ratio for controlling gear pair mechanism is more than first gear to the transmission ratio of mechanism, makes driven control gear
14 rotating speed counterclockwise is less than the rotating speed counterclockwise of roller rolling retainer 20 less than the rotating speed counterclockwise of a gear driven gear 19,
At this point, control friction plate 16 and control platen 15 can occur to skid relatively, clockwise friction torque is generated, which makes roller
Retainer 20 rotates clockwise certain angle relative to a gear driven gear 19, and roller A22 is allocated to a gear by roller rolling retainer 20
In the corresponding wedge shape space of reversing gear operation locking surface between driven gear 19 and a gear freewheel clutch inner ring 18, roller A22
It is locked in and reverses gear in the corresponding wedge shape space of operation locking surface, as shown in fig. 6, a gear freewheel clutch passing power.Power
Mechanism is transmitted on output shaft 17 by first gear, realizes that vehicle reverses gear retrogressing.
As described above, control gear pair mechanism reverses gear process for controlling, control the control in gear pair mechanism surmount from
Clutch will not have an impact its work when vehicle hangs a gear and two gears advance, and concrete reason is described below：
As shown in Fig. 1, Fig. 4 and Fig. 7, one gear when, 1 direction of rotation of input shaft be counterclockwise rotation, then the rotation of output shaft 17
It is clockwise to turn direction, and a gear driven gear 19 rotates clockwise, while roller rolling retainer 20 rotates clockwise.Roller rolling retainer
20 drive control friction plate 16 to rotate again, control platen 15 and control the driven control of frictional force drive generated between friction plate 16
Gear 14 rotates clockwise, and the driven control gear 14 on output shaft 17 is rotated clockwise with the first control on driven input shaft 1
Gear 3 rotates counterclockwise, because the transmission ratio of gear pair mechanism in order to control is more than the transmission ratio of first gear pair, so at this time actively
The rotating speed counterclockwise for controlling gear 3 is higher than the rotating speed counterclockwise of input shaft 1, that is, is higher than the control being connected on input shaft 1 and surmounts
The rotating speed of clutch inner ring 4.As shown in fig. 7, when 3 rotating speed counterclockwise of active control gear is higher than control freewheel clutch inner ring 4
Rotating speed counterclockwise when, roller B24 will be moved to the space larger part of the wedge shape space where it, and roller B24 will not lock
Only, freewheel clutch not passing power is controlled.At this point, vehicle gear box is operated under a gear forward mode, gear mesh machine is controlled
The power that structure will not interfere with a gear transmits.
Two gear when, it is same gear similarly, as shown in Fig. 1, Fig. 5 and Fig. 7, two gear when, 1 direction of rotation of input shaft be counterclockwise rotation
Turn, then the direction of rotation of output shaft 17 is clockwise, and a gear driven gear 19 rotates clockwise, while roller rolling retainer 20 is suitable
Hour hands rotate.Roller rolling retainer 20 drives control friction plate 16 to rotate again, controls and is generated between platen 15 and control friction plate 16
Frictional force drive driven control gear 14 to rotate clockwise, the driven control gear 14 on output shaft 17 rotates counterclockwise drive
Active control gear 3 on input shaft 1 rotates counterclockwise, because the transmission ratio of gear pair mechanism in order to control is more than second gear pair
Transmission ratio is higher than and is connected in so the rotating speed counterclockwise of active control gear 3 is higher than the rotating speed counterclockwise of input shaft 1 at this time
The rotating speed of control freewheel clutch inner ring 4 on input shaft 1.As shown in fig. 7, when 3 rotating speed counterclockwise of active control gear is higher than
When controlling the rotating speed counterclockwise of freewheel clutch inner ring 4, locking will not occur for roller B24, and control freewheel clutch can not transmit
Power.At this point, vehicle gear box is operated in two gear forward modes, the power that control gear pair mechanism will not interfere with two gears transmits.
Claims (1)
1. a kind of pure electric automobile power failure-free manual transmission, by input shaft (1), first gear to mechanism, second gear
To mechanism, diaphragm spring clutch, output shaft (17) and shift control mechanism composition, the shift control mechanism includes control tooth
Take turns the roller control mechanism to mechanism, a gear freewheel clutch, control freewheel clutch and a gear freewheel clutch, feature
It is：
The one gear freewheel clutch is double rolling key clutch, and traveling of reversing gear is kept off with one gear forward travel of realization and one；
It is described one gear freewheel clutch by the outer ring with double rolling key clutch be an integral structure one gear driven gear (19),
A gear freewheel clutch inner ring (18), roller toggle mechanism, roller A (22) and the preloading spring being connected on output shaft (17)
A (23) is formed；
One gear driven gear (19) inner surface and gear freewheel clutch inner ring (18) outer surface form wedge shape space, described
The both ends of wedge shape space are two opposite wedge-shaped locking surfaces, and one end is that a gear runs locking surface, and the other end is the operation lock that reverses gear
Only face；
Roller rolling retainer (20) in the one gear freewheel clutch is pre-tightened roller A (22) in wedge by preloading spring A (23)
In the one gear operation locking surface in shape space；
The control freewheel clutch controls transmission reverse gear so that gearbox respectively a gear, two gears and reverse gear operation when without
Power is interfered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218730.4U CN207715657U (en) | 2017-09-22 | 2017-09-22 | A kind of pure electric automobile power failure-free manual transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218730.4U CN207715657U (en) | 2017-09-22 | 2017-09-22 | A kind of pure electric automobile power failure-free manual transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207715657U true CN207715657U (en) | 2018-08-10 |
Family
ID=63063637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721218730.4U Expired - Fee Related CN207715657U (en) | 2017-09-22 | 2017-09-22 | A kind of pure electric automobile power failure-free manual transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207715657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639018A (en) * | 2020-04-27 | 2021-11-12 | 福州锐智新能源科技有限公司 | Single-actuator three-gear planetary gear transmission |
-
2017
- 2017-09-22 CN CN201721218730.4U patent/CN207715657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639018A (en) * | 2020-04-27 | 2021-11-12 | 福州锐智新能源科技有限公司 | Single-actuator three-gear planetary gear transmission |
| CN113639018B (en) * | 2020-04-27 | 2022-09-16 | 福州锐智新能源科技有限公司 | Single-actuator three-gear planetary gear transmission |
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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: 20180810 Termination date: 20210922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |