CN209700869U - The electric vehicle of Multi-stage transmission output mechanism and application Multi-stage transmission output mechanism - Google Patents
The electric vehicle of Multi-stage transmission output mechanism and application Multi-stage transmission output mechanism Download PDFInfo
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- CN209700869U CN209700869U CN201920504735.6U CN201920504735U CN209700869U CN 209700869 U CN209700869 U CN 209700869U CN 201920504735 U CN201920504735 U CN 201920504735U CN 209700869 U CN209700869 U CN 209700869U
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Abstract
A kind of Multi-stage transmission output mechanism, including motor, two or more sequentially connected transmission components, each transmission component includes driving disc spacing pressing, transmission belt, driven disc, output shaft, the driven disc is set in output shaft surface, the transmission belt is set in the surface of driving disc spacing pressing and driven disc, the driving disc spacing pressing of first transmission component is set in the output end of motor, and the driving disc spacing pressing of the latter transmission component is set in the output shaft surface of previous transmission component.The Multi-stage transmission output mechanism of the utility model, motor is exported by Multi-stage transmission, motor output torque can distribute 1 transmission and convert 2 transmissions conversion or n times transmission conversion, so as to improve the output torque of motor, so that low-power machine realizes large torque output, the energy consumption of motor can be reduced simultaneously, increases the single use time of the battery energized for motor, in addition it can realize that the speed of final output axis is adjusted.
Description
Technical field
The utility model relates to electric automobiles, espespecially a kind of Multi-stage transmission output mechanism and application Multi-stage transmission export machine
The electric vehicle of structure.
Background technique
Pure electric vehicle has many advantages, such as environmental protection, energy conservation, and development in recent years is increasingly more and more prosperous, has greatly some day
Replace the trend of gasoline car.The electric vehicle usually said, by components such as controller, motors, is incited somebody to action using battery as energy source
Electric energy is converted into mechanical energy movement, to control the vehicle that size of current changes speed.
But the power drive system of electric vehicle mostly uses electric-machine directly-driven, motor limited torque output, motor energy at present
Larger, electric vehicle mileage of riding is consumed not grow.
Summary of the invention
To solve the above problems, the utility model provides a kind of Multi-stage transmission output mechanism and application Multi-stage transmission exports machine
The electric vehicle of structure.
To achieve the above object, the utility model provides a kind of Multi-stage transmission output mechanism, including motor, two or more
Sequentially connected transmission component, each transmission component include driving disc spacing pressing, driven disc, output shaft, the driving disc spacing pressing and institute
Driven disc transmission connection is stated, the driven disc is set in output shaft surface；The driving disc spacing pressing of first transmission component is set in motor
Output end, the driving disc spacing pressing of the latter transmission component is set in the output shaft surface of previous transmission component.
Further, the driving disc spacing pressing and driven disc are belt pulley, and the surface of the driving disc spacing pressing and driven disc is socketed with
Belt；Or the driving disc spacing pressing and driven disc are flywheel chain wheel, the surface of the driving disc spacing pressing and driven disc is socketed with chain belt；Or
Driving disc spacing pressing and driven disc described in person are toothed disc, the driving disc spacing pressing and driven disc intermeshing.
It further, further include shell, the last one described transmission component is set to outside shell, the motor and remaining transmission
Component is set in the housing, the motor, remaining transmission component output shaft be fixedly connected with the casing.
Further, the motor is built-in motor, and the driving disc spacing pressing of first transmission component is set in turning for built-in motor
Sub- axis surface；Or the motor is hub motor, the driving disc spacing pressing of first transmission component is set in the rotor wheel of hub motor
Surface.
Further, the transmission component includes the first transmission component, the second transmission component, the first transmission component packet
Include the first driving disc spacing pressing, the first transmission belt, the first driven disc, the first output shaft, second transmission component include the second driving disc spacing pressing,
Second transmission belt, the second driven disc, the second output shaft, first driving disc spacing pressing is set in the arbor surface of the motor, described
First driven disc is set in the surface of the first output shaft, and first transmission belt is set in the first driving disc spacing pressing and the first driven disc
Surface, second driving disc spacing pressing are set in the surface of the first output shaft, and second driven disc is set in the table of the second output shaft
Face, second transmission belt are set in the surface of the second driving disc spacing pressing and the second driven disc.
Further, first driving disc spacing pressing and the first driven disc are belt pulley, and first transmission belt is belt；It is described
Second driving disc spacing pressing and the second driven disc are flywheel chain wheel, and second transmission belt is chain belt.
Further, the transmission component includes the first transmission component, the second transmission component, third transmission component, described
First transmission component includes the first driving disc spacing pressing, the first transmission belt, the first driven disc, the first output shaft, second transmission component
Including the second driving disc spacing pressing, the second transmission belt, the second driven disc, the second output shaft, the third transmission component includes third active
Disk, third transmission belt, third driven disc, third output shaft, first driving disc spacing pressing are set in the arbor surface of the motor, institute
The surface that the first driven disc is set in the first output shaft is stated, first transmission belt is set in the first driving disc spacing pressing and the first driven disc
Surface, second driving disc spacing pressing is set in the surface of the first output shaft, and second driven disc is set in the second output shaft
Surface, second transmission belt are set in the surface of the second driving disc spacing pressing and the second driven disc, and the third driven disc is set in
The surface of three output shafts, the third transmission belt are set in the surface of third driving disc spacing pressing and third driven disc.
Further, first driving disc spacing pressing and the first driven disc are belt pulley, and first transmission belt is belt；It is described
Second driving disc spacing pressing and the second driven disc are flywheel chain wheel, and second transmission belt is chain belt；The third driving disc spacing pressing and third from
Moving plate is flywheel chain wheel, and the third transmission belt is chain belt.
To achieve the above object, the utility model also provides a kind of electric vehicle using Multi-stage transmission output mechanism, including
Car body, wheel, the wheel are set to the bottom end of car body, further include Multi-stage transmission output mechanism, the motor is fixed at car body
On, the wheel is set in the output shaft surface of the last one transmission component.
Further, the electric vehicle is electric bicycle, electric light motorcycle, battery-operated motor cycle, electro-tricycle
Or electric car.
The utility model has the beneficial effects that: the Multi-stage transmission output mechanism of the utility model, motor passes through belt, chain
Multi-stage transmission output is realized in band or gear drive, and motor output torque can distribute 1 transmission and convert 2 transmissions conversion or n times
Transmission conversion so that low-power machine realizes large torque output, while can reduce so as to improve the output torque of motor
The energy consumption of motor, the single use time for increasing the battery energized for motor, in addition it can realize the speed of final output axis
Degree is adjusted.
Detailed description of the invention
Fig. 1 be the utility model Multi-stage transmission output mechanism embodiment one be applied to electric bicycle when structural representation
Figure；
Fig. 2 is that the one structure of the electric bicycle using Multi-stage transmission output mechanism embodiment one of the utility model is shown
It is intended to；
Fig. 3 is the electric bicycle using Multi-stage transmission output mechanism embodiment one of the utility model secondly structure is shown
It is intended to；
Fig. 4 is the Multi-stage transmission output mechanism embodiment two of the utility model using the structural schematic diagram of built-in motor；
Fig. 5 is the Multi-stage transmission output mechanism embodiment two of the utility model using the structural schematic diagram of hub motor；
Fig. 6 is the structural schematic diagram of the electric bicycle of the Multi-stage transmission output mechanism embodiment two of the utility model；
Fig. 7 is that the Multi-stage transmission output mechanism embodiment one of the utility model is applied to the structural representation of electro-tricycle
Figure；
Fig. 8 is the structural representation of the electro-tricycle using Multi-stage transmission output mechanism embodiment one of the utility model
Figure；
Fig. 9 be the utility model Multi-stage transmission output mechanism embodiment two be applied to electric car when structural representation
Figure；
Figure 10 is the structural schematic diagram of the electric car using Multi-stage transmission output mechanism embodiment two of the utility model.
Drawing reference numeral explanation:
5- shell；
11- hub motor；12- built-in motor；
The first driving disc spacing pressing of 21-；The first transmission belt of 22-；The first driven disc of 23-；The first output shaft of 24-；
The second driving disc spacing pressing of 31-；The second transmission belt of 32-；The second driven disc of 33-；The second output shaft of 34-；
41- third driving disc spacing pressing；42- third transmission belt；43- third driven disc；44- third output shaft；
6a, 6b, 6c- car body；7a, 7b, 7c- wheel.
Specific embodiment
Fig. 1,4,5,7,9 are please referred to, to achieve the above object, the utility model provides a kind of Multi-stage transmission output mechanism,
Including motor, two or more sequentially connected transmission components, each transmission component includes driving disc spacing pressing, driven disc, defeated
Shaft, the driving disc spacing pressing and the driven disc are sequentially connected, and the driven disc is set in output shaft surface；First transmission component
Driving disc spacing pressing be set in the output end of motor, the driving disc spacing pressing of the latter transmission component is set in the output shaft of previous transmission component
Surface.
It should be noted that " multistage " in Multi-stage transmission output mechanism refers to two or more transmission components, and
And the utility model does not set the upper limit to the quantity of the Multi-stage transmission component, as long as installation space is allowed, can constantly be superimposed, superposition
The order of magnitude is more, and effect is more obvious.
The Multi-stage transmission output mechanism of the utility model, motor realize Multi-stage transmission by belt, chain belt or gear drive
Output, motor output torque can distribute 1 transmission and convert 2 transmissions conversion or n times transmission conversion, so as to improve motor
Output torque so that low-power machine realize large torque output, while can reduce motor energy consumption, increase be motor energize
Battery the single use time, in addition it can realize final output axis speed adjust.
Further, the driving disc spacing pressing and driven disc are belt pulley, and the surface of the driving disc spacing pressing and driven disc is socketed with
Belt；Or the driving disc spacing pressing and driven disc are flywheel chain wheel, the surface of the driving disc spacing pressing and driven disc is socketed with chain belt；Or
Driving disc spacing pressing and driven disc described in person are toothed disc, the driving disc spacing pressing and driven disc intermeshing.
The kind of drive in the utility model includes that belt transmission, chain V belt translation or gear drive, the utility model are unlimited
Make the kind of drive of each transmission component, the kind of drive of each transmission component unrestricted choice and can take according to actual needs
Match, as long as motor realizes that the multiple conversions of power reach the ideal effect of the utility model by Multi-stage transmission component, that is, falls into this
The protection scope of utility model.
Fig. 4,5 are please referred to, further includes shell 5 further, the last one described transmission component is set to outside shell 5, described
Motor and remaining transmission component are set in shell 5, the motor, remaining transmission component output shaft with shell 5 is fixed connects
It connects.
Using the above scheme, integral structure is formed by being arranged motor and remaining transmission component in a shell 5,
So that structure is more compact firm as a whole for the utility model, the whole service life of the utility model can be improved.
Fig. 4,5 are please referred to, further, the motor is built-in motor 12, and the driving disc spacing pressing of first transmission component is arranged
On the armature spindle surface of built-in motor 12；Or the motor is hub motor 11, the driving disc spacing pressing of first transmission component is arranged
In the rotor wheel surface of hub motor 11.
Motor model can use hub motor 11 or built-in motor 12.
When wherein, using built-in motor 12, the driving disc spacing pressing of the first transmission component is set in the armature spindle table of built-in motor 12
Face.
When wherein, using hub motor 11, the driving disc spacing pressing of the first transmission component is set in the rotor wheel table of hub motor 11
The power output in face, motor is more balanced.In the present embodiment, the rotor wheel of first driving disc spacing pressing and hub motor 11 is integrally formed,
So that the structure of the utility model more concision and compact.
The two kinds provided herein specific embodiments based on above-mentioned grade transmission output mechanism, including secondary transmission output mechanism
Output mechanism is driven with three-level.
Embodiment one
Fig. 1,7 are please referred to, the transmission component includes the first transmission component, the second transmission component, first transmission group
Part includes the first driving disc spacing pressing 21, the first transmission belt 22, the first driven disc 23, the first output shaft 24, the second transmission component packet
The second driving disc spacing pressing 31, the second transmission belt 32, the second driven disc 33, the second output shaft 34 are included, first driving disc spacing pressing 21 is set in
The arbor surface of the motor, first driven disc 23 are set in the surface of the first output shaft 24, first transmission belt 22
It is set in the surface of the first driving disc spacing pressing 21 and the first driven disc 23, second driving disc spacing pressing 31 is set in the table of the first output shaft 24
Face, second driven disc 33 are set in the surface of the second output shaft 34, and second transmission belt 32 is set in the second driving disc spacing pressing
31 and second driven disc 33 surface.
The Multi-stage transmission output mechanism of the present embodiment, the chain belt that motor passes through belt transmission and the second level by the first order
Output is realized in transmission, and motor output torque is converted by 2 transmissions, so as to improve the output torque of motor, so that small function
Rate motor realizes large torque output, while can reduce the energy consumption of motor, increase the single use time of motor, in addition it can
Realize that the speed of final output axis is adjusted.
Further, first driving disc spacing pressing 21 and the first driven disc 23 are belt pulley, and first transmission belt 22 is skin
Band；Second driving disc spacing pressing 31 and the second driven disc 33 are flywheel chain wheel, and second transmission belt 32 is chain belt.
First order transmission component is that, when stuck situation occurs in somewhere output shaft, motor can using the effect of belt transmission
To avoid motor itself from burning by idle running.
Embodiment two
Fig. 4,5,9 are please referred to, the transmission component includes the first transmission component, the second transmission component, third transmission component,
First transmission component includes the first driving disc spacing pressing 21, the first transmission belt 22, the first driven disc 23, the first output shaft 24, described
Second transmission component includes the second driving disc spacing pressing 31, the second transmission belt 32, the second driven disc 33, the second output shaft 34, the third
Transmission component includes third driving disc spacing pressing 41, third transmission belt 42, third driven disc 43, third output shaft 44, and described first actively
Disk 21 is set in the arbor surface of the motor, and first driven disc 23 is set in the surface of the first output shaft 24, and described
One transmission belt 22 is set in the surface of the first driving disc spacing pressing 21 and the first driven disc 23, and it is defeated that second driving disc spacing pressing 31 is set in first
The surface of shaft 24, second driven disc 33 are set in the surface of the second output shaft 34, and second transmission belt 32 is set in
The surface of second driving disc spacing pressing 31 and the second driven disc 33, the third driven disc 43 are set in the surface of third output shaft 44, institute
State the surface that third transmission belt 42 is set in third driving disc spacing pressing 41 and third driven disc 43.
The Multi-stage transmission output mechanism of the present embodiment, motor pass through the belt transmission and the second level and third by the first order
The chain V belt translation of pole realizes output, and motor output torque is converted by 3 transmissions, so as to improve the output torque of motor,
So that low-power machine realizes large torque output, while can reduce the energy consumption of motor, increase the single use time of motor, separately
It can also realize that the speed of final output axis is adjusted outside.
Further, first driving disc spacing pressing 21 and the first driven disc 23 are belt pulley, and first transmission belt 22 is skin
Band；Second driving disc spacing pressing 31 and the second driven disc 33 are flywheel chain wheel, and second transmission belt 32 is chain belt；The third master
Moving plate 41 and third driven disc 43 are flywheel chain wheel, and the third transmission belt 42 is chain belt.
First order transmission component is that, when stuck situation occurs in somewhere output shaft, motor can using the effect of belt transmission
To avoid motor itself from burning by idle running.
Above-described embodiment is only driven output mechanism to two-stage and three-level transmission output mechanism is illustrated, it is clear that
It is that Multi-stage transmission output mechanism can also be driven output mechanism using level Four transmission output mechanism or Pyatyi, is unequal to exhaustion herein,
Those skilled in the art can freely implement according to the above technical scheme.
Fig. 2,3,6,8,10 are please referred to, to achieve the above object, it is defeated that the utility model also provides a kind of application Multi-stage transmission
The electric vehicle of mechanism out, including car body, wheel, the wheel are set to the bottom end of car body, further include Multi-stage transmission output mechanism, institute
It states motor to be fixed on car body, the wheel is set in the output shaft surface of the last one transmission component.
The electric vehicle using Multi-stage transmission output mechanism of the utility model, motor is driven by belt or chain V belt translation
Realize Multi-stage transmission output, motor output torque can distribute 1 transmission and convert 2 transmissions conversion or n times transmission conversion, thus
The output torque of motor can be improved, so that low-power machine realizes large torque output, improve the climbing capacity of electric vehicle, simultaneously
The energy consumption that motor can be reduced increases the mileage of riding of electric vehicle, in addition it can realize that the speed of electric vehicle is adjusted.
The specific embodiment of several electric vehicles based on application Multi-stage transmission output mechanism provided herein, electrical salf-walking
Vehicle, electric light motorcycle, battery-operated motor cycle, electro-tricycle or electric car.Wherein, the electric bicycle, electronic light
Just the prior art can be used in the structure of motorcycle, battery-operated motor cycle, electro-tricycle or electric car and component, in addition to car body
And wheel, it also include the controller of the battery for motor energy supply and control motor work, details are not described herein again.
Embodiment one
Using the electric bicycle of Multi-stage transmission output mechanism
Fig. 2,3,6, a kind of electric bicycle using Multi-stage transmission output mechanism, including car body 6a, wheel 7a are please referred to,
The wheel 7a is set to the bottom end of car body 6a, further includes Multi-stage transmission output mechanism, the motor is fixed on car body 6a, institute
State the output shaft surface that wheel 7a is set in the last one transmission component.
Electric bicycle provided in this embodiment, Multi-stage transmission output mechanism can be driven output mechanism or three using two-stage
Grade transmission output mechanism, to realize the conversion of 2 times or 3 times power of motor.For the specific installation site of two-stage transmission mechanism, electricity
Machine can choose below the cushion for being mounted on car body 6a or pedal part.For the specific installation site of three-level transmission mechanism, electricity
Machine is preferably mounted at below the cushion of car body 6a.
Wherein, using in the electric light motorcycle of Multi-stage transmission output mechanism, battery-operated motor cycle, Multi-stage transmission component
Structure and installation can be configured completely with reference to above-mentioned electric bicycle, and details are not described herein again.
Embodiment two
Using the electro-tricycle of Multi-stage transmission output mechanism
Referring to Fig. 8, a kind of electro-tricycle using Multi-stage transmission output mechanism, including car body 6b, wheel 7b, it is described
Wheel 7b is set to the bottom end of car body 6b, further includes Multi-stage transmission output mechanism, the motor is fixed on car body 6b, the vehicle
Wheel 7b is set in the output shaft surface of the last one transmission component.
Electro-tricycle provided in this embodiment, Multi-stage transmission output mechanism can be driven output mechanism or three using two-stage
Grade transmission output mechanism, to realize the conversion of 2 times or 3 times power of motor.Multi-stage transmission output mechanism is preferably mounted at car body 6b
The lower section of shelf.
Embodiment three
Using the electric car of Multi-stage transmission output mechanism
Referring to Fig. 10, a kind of electric car using Multi-stage transmission output mechanism, including car body 6c, wheel 7c, it is described
Wheel 7c is set to the bottom end of car body 6c, further includes Multi-stage transmission output mechanism, the motor is fixed on car body 6c, the vehicle
Wheel 7c is set in the output shaft surface of the last one transmission component.
Electric car provided in this embodiment, Multi-stage transmission output mechanism can be using three-level transmission output mechanism or level Four
It is driven output mechanism, to realize the conversion of 3 times or 4 times power of motor.Multi-stage transmission output mechanism is preferably mounted at car body 6c's
At chassis.
Embodiment of above is only that preferred embodiments of the present invention are described, not to the utility model
Range be defined, under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel to this
The various changes and improvements that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
It protects in range.
Claims (10)
1. a kind of Multi-stage transmission output mechanism, it is characterised in that: including motor, two or more sequentially connected transmission components,
Each transmission component includes driving disc spacing pressing, driven disc, output shaft, and the driving disc spacing pressing and the driven disc are sequentially connected, institute
It states driven disc and is set in output shaft surface；The driving disc spacing pressing of first transmission component is set in the output end of motor, the latter transmission
The driving disc spacing pressing of component is set in the output shaft surface of previous transmission component.
2. Multi-stage transmission output mechanism according to claim 1, it is characterised in that: the driving disc spacing pressing and driven disc are skin
The surface of tep reel, the driving disc spacing pressing and driven disc is socketed with belt；Or the driving disc spacing pressing and driven disc are flywheel chain wheel, institute
The surface for stating driving disc spacing pressing and driven disc is socketed with chain belt；Or the driving disc spacing pressing and driven disc are toothed disc, the driving disc spacing pressing
It is intermeshed with driven disc.
3. Multi-stage transmission output mechanism according to claim 1, it is characterised in that: further include shell, it is described the last one
Transmission component is set to outside shell, the motor and remaining transmission component are set in the housing, the motor, remaining transmission component
Output shaft is fixedly connected with the casing.
4. Multi-stage transmission output mechanism according to claim 1, it is characterised in that: the motor be built-in motor, first
The driving disc spacing pressing of a transmission component is set in the armature spindle surface of built-in motor；Or the motor is hub motor, first biography
The driving disc spacing pressing of dynamic component is set in the rotor wheel surface of hub motor.
5. Multi-stage transmission output mechanism according to claim 1, it is characterised in that: the transmission component includes the first transmission
Component, the second transmission component, first transmission component includes the first driving disc spacing pressing, the first transmission belt, the first driven disc, first defeated
Shaft, second transmission component include the second driving disc spacing pressing, the second transmission belt, the second driven disc, the second output shaft, described first
Driving disc spacing pressing is set in the arbor surface of the motor, and first driven disc is set in the surface of the first output shaft, and described first
Transmission belt is set in the surface of the first driving disc spacing pressing and the first driven disc, and second driving disc spacing pressing is set in the table of the first output shaft
Face, second driven disc are set in the surface of the second output shaft, and second transmission belt is set in the second driving disc spacing pressing and second
The surface of driven disc.
6. Multi-stage transmission output mechanism according to claim 5, it is characterised in that: first driving disc spacing pressing and first driven
Disk is belt pulley, and first transmission belt is belt；Second driving disc spacing pressing and the second driven disc are flywheel chain wheel, described second
Transmission belt is chain belt.
7. Multi-stage transmission output mechanism according to claim 1, it is characterised in that: the transmission component includes the first transmission
Component, the second transmission component, third transmission component, first transmission component include the first driving disc spacing pressing, the first transmission belt, first
Driven disc, the first output shaft, second transmission component includes the second driving disc spacing pressing, the second transmission belt, the second driven disc, second defeated
Shaft, the third transmission component include third driving disc spacing pressing, third transmission belt, third driven disc, third output shaft, and described first
Driving disc spacing pressing is set in the arbor surface of the motor, and first driven disc is set in the surface of the first output shaft, and described first
Transmission belt is set in the surface of the first driving disc spacing pressing and the first driven disc, and second driving disc spacing pressing is set in the table of the first output shaft
Face, second driven disc are set in the surface of the second output shaft, and second transmission belt is set in the second driving disc spacing pressing and second
The surface of driven disc, the third driven disc are set in the surface of third output shaft, and the third transmission belt is set in third master
The surface of Moving plate and third driven disc.
8. Multi-stage transmission output mechanism according to claim 7, it is characterised in that: first driving disc spacing pressing and first driven
Disk is belt pulley, and first transmission belt is belt；Second driving disc spacing pressing and the second driven disc are flywheel chain wheel, described second
Transmission belt is chain belt；The third driving disc spacing pressing and third driven disc are flywheel chain wheel, and the third transmission belt is chain belt.
9. a kind of electric vehicle using Multi-stage transmission output mechanism described in claim 1, including car body, wheel, the wheel
Set on the bottom end of car body, it is characterised in that: further include Multi-stage transmission output mechanism, the motor is fixed on car body, described
Wheel is set in the output shaft surface of the last one transmission component.
10. electric vehicle according to claim 9, it is characterised in that: the electric vehicle is electric bicycle, electric light rubs
Motorcycle, battery-operated motor cycle, electro-tricycle or electric car.
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| CN201920504735.6U CN209700869U (en) | 2019-04-15 | 2019-04-15 | The electric vehicle of Multi-stage transmission output mechanism and application Multi-stage transmission output mechanism |
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| CN201920504735.6U CN209700869U (en) | 2019-04-15 | 2019-04-15 | The electric vehicle of Multi-stage transmission output mechanism and application Multi-stage transmission output mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111824323A (en) * | 2019-04-15 | 2020-10-27 | 陈贤森 | Multi-stage transmission output mechanism and electric vehicle applying same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824323A (en) * | 2019-04-15 | 2020-10-27 | 陈贤森 | Multi-stage transmission output mechanism and electric vehicle applying same |
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