CN112572684A - Auxiliary power driving equipment for ascending and descending of bicycle - Google Patents
Auxiliary power driving equipment for ascending and descending of bicycle Download PDFInfo
- Publication number
- CN112572684A CN112572684A CN202110051187.8A CN202110051187A CN112572684A CN 112572684 A CN112572684 A CN 112572684A CN 202110051187 A CN202110051187 A CN 202110051187A CN 112572684 A CN112572684 A CN 112572684A
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- China
- Prior art keywords
- cavity
- fixedly connected
- shaft
- sleeve
- slider
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/60—Rider propelled cycles with auxiliary electric motor power-driven at axle parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses an auxiliary power driving device for upward and downward slopes of a bicycle, which comprises a main body, wherein a power driving mechanism is arranged in the main body, the power driving mechanism comprises an auxiliary wheel cavity which is provided with an inner lower side of the main body and is provided with a downward opening, a motor is fixedly arranged on the front side of the auxiliary wheel cavity, the rear end of the motor is in power connection with an auxiliary wheel shaft, the auxiliary wheel shaft penetrates through the auxiliary wheel cavity, an auxiliary wheel is fixedly connected with the outer circular surface, a power generation cavity is arranged on the upper side of the auxiliary wheel cavity, and the rear wall of the power generation cavity is in rotary connection with a coil shaft. Helping the riding personnel to go up the slope more easily.
Description
Technical Field
The invention relates to the field of power driving equipment, in particular to auxiliary power driving equipment for ascending and descending of a bicycle.
Background
In the process of using a bicycle to run, people often need to go up and down slopes, when the bicycle goes up the slope, people who run the bicycle need to run hard to ensure that the bicycle runs and get tired very, when going down the slope, people may run into the situation that the speed is too high to cause that the brake needs to be pressed all the time to slow down, the brake is pressed for a long time to easily reduce the service life of the people, but once the speed is too high, the people who run the bicycle cannot timely react when meeting emergency, and the danger is high. The invention provides an auxiliary power driving device for ascending and descending of a bicycle, which can solve the problems.
Disclosure of Invention
In order to solve the problems, the embodiment designs an auxiliary power driving device for ascending and descending of a bicycle, the auxiliary power driving device for ascending and descending of a bicycle comprises a main body, a power driving mechanism is arranged in the main body, the power driving mechanism comprises an auxiliary wheel cavity which is arranged at the lower side in the main body and has a downward opening, a motor is fixedly arranged at the front side of the auxiliary wheel cavity, the rear end of the motor is in power connection with an auxiliary wheel shaft, the auxiliary wheel shaft penetrates through the auxiliary wheel cavity and is fixedly connected with an auxiliary wheel on the outer circular surface, a power generation cavity is arranged at the upper side of the auxiliary wheel cavity, the rear wall of the power generation cavity is rotatably connected with a coil shaft, a coil is fixedly connected on the outer circular surface of the coil shaft, power generation magnets are symmetrically and fixedly connected on the left wall and the right wall of the power generation cavity, a sleeve cavity is arranged at the rear, the utility model discloses a generator, including sleeve cavity, power generation cavity, sleeve cavity back wall, coil shaft rear end, the sleeve cavity back wall rotates and is connected with the quill, the coil shaft rear end extend to the sleeve cavity and with the common cover of quill front end is equipped with the front and back and runs through the sleeve of sleeve slider, sleeve slider front end with fixedly connected with sleeve spring between the sleeve cavity antetheca, power generation cavity upside is equipped with gliding balanced slider around can being equipped with, the intercommunication of balanced slider cavity upside bilateral symmetry is equipped with blocks the slider cavity, block that the slider cavity is equipped with gliding slider from top to bottom, balanced slider cavity left side wall fixedly connected with electro-magnet, balanced slider cavity right side wall fixedly connected with response piece, the main part.
Preferably, the upper end face of the blocking slider is fixedly connected with the upper wall of the sliding block cavity to block the sliding block spring, the lower side of the balance sliding block cavity is communicated with an inclined plane block cavity communicated with the sleeve cavity, an inclined plane block capable of sliding up and down is arranged in the inclined plane block cavity, and a limiting block cavity is communicated with the right side of the inclined plane block cavity.
Preferably, the stopper intracavity be equipped with can slide from top to bottom and with inclined plane piece fixed connection's stopper, under the stopper terminal surface with fixedly connected with stopper spring between the stopper chamber lower wall, the upside is equipped with the ascending inclined plane piece groove of opening in the sleeve slider, inclined plane piece can block into in the inclined plane piece inslot.
But preferably, damper is including locating downside and the decurrent shock attenuation chamber of opening in the fixing base, shock attenuation chamber left and right wall symmetry and fixedly connected with shock attenuation fixed block, only two fixedly connected with damping shaft between the main part fixed block axle, main part upper end fixedly connected with main part fixed block, be equipped with bilateral symmetry in the main part fixed block and the opening upwards to being close to the connecting rod chamber of shock attenuation fixed block direction.
Preferably, the front wall and the rear wall of the connecting rod cavity are fixedly connected with a main body fixing block shaft, the damping shaft outer circular surface is bilaterally symmetrical and is connected with a damping shaft sliding block in a sliding mode, a sliding block cavity with a downward opening and penetrating left and right is formed in the inner lower side of the damping shaft sliding block, and the left wall and the right wall of the sliding block cavity are rotatably connected with the connecting rod shaft.
Preferably, the connecting rod shaft and the outer circular surface of the main body fixing block shaft are fixedly connected with a connecting rod, and a damping spring is fixedly connected between one end face, close to the damping fixing block, of the damping shaft sliding block and one wall, close to the damping shaft sliding block, of the damping fixing block.
Preferably, a belt pulley cavity is formed in the rear side of the sleeve cavity, the rear end of the sleeve shaft extends into the belt pulley cavity and is fixedly connected with a driven belt pulley, the rear end of the auxiliary wheel shaft extends into the belt pulley cavity and is fixedly connected with a driving belt pulley, and a belt pulley belt is wound between the driving belt pulley and the driven belt pulley.
The invention has the beneficial effects that: the device can automatically detect the running state of the bicycle, can convert part of downhill power into electric power for storage when the bicycle runs downhill, and can reduce the downhill speed through certain resistance to prevent the situation that the speed is too high and the danger cannot be reacted in time.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure A-A of FIG. 1;
FIG. 3 is a schematic diagram of B-B of FIG. 2;
FIG. 4 is an enlarged schematic view of C in FIG. 1;
fig. 5 is an enlarged schematic view of D in fig. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a bicycle up-down slope auxiliary power driving device, which comprises a main body 11, wherein a power driving mechanism 102 is arranged in the main body 11, the power driving mechanism 102 comprises an auxiliary wheel cavity 25 which is provided with the inner lower side of the main body 11 and has a downward opening, a motor 31 is fixedly arranged at the front side of the auxiliary wheel cavity 25, the rear end of the motor 31 is in power connection with an auxiliary wheel shaft 23, the auxiliary wheel shaft 23 penetrates through the auxiliary wheel cavity 25 and is fixedly connected with an auxiliary wheel 24 on the outer circular surface, a power generation cavity 12 is arranged at the upper side of the auxiliary wheel cavity 25, the rear wall of the power generation cavity 12 is rotatably connected with a coil shaft 27, the outer circular surface of the coil shaft 27 is fixedly connected with a coil 26, the left wall and the right wall of the power generation cavity 12 are symmetrically and fixedly connected with power generation magnets 13, a sleeve cavity 53 is arranged at the rear side of the power generation cavity 12, a sleeve sliding block 38 capable of sliding back and forth is, coil shaft 27 rear end extends to run through around in the sleeve chamber 53 and with the common cover of sleeve shaft 43 front end is equipped with sleeve 42 of sleeve slider 38, sleeve slider 38 front end with fixedly connected with sleeve spring 52 between the sleeve chamber 53 antetheca, electricity generation chamber 12 upside is equipped with balanced slider chamber 20, gliding balanced slider 22 in back before the ability is equipped with in the balanced slider chamber 20, the intercommunication of the 20 upside bilateral symmetry in balanced slider chamber is equipped with blocks slider chamber 17, it blocks slider 16 to be equipped with gliding from top to bottom in the slider chamber 17 to block, the left wall fixedly connected with electro-magnet 15 in balanced slider chamber 20, balanced slider chamber 20 right wall fixedly connected with response piece 21, main part 11 upside is equipped with fixing base 18, be equipped with damper 101 in the fixing base 18.
Beneficially, a blocking slider spring 19 is fixedly connected between the upper end face of the blocking slider 16 and the upper wall of the blocking slider cavity 17, an inclined plane block cavity 36 communicated with the sleeve cavity 53 is formed in the lower side of the balance slider cavity 20, an inclined plane block 14 capable of sliding up and down is arranged in the inclined plane block cavity 36, and a limiting block cavity 41 is formed in the right side of the inclined plane block cavity 36 in a communicating manner.
Beneficially, a limiting block 39 capable of sliding up and down and fixedly connected with the inclined plane block 14 is arranged in the limiting block cavity 41, a limiting block spring 40 is fixedly connected between the lower end face of the limiting block 39 and the lower wall of the limiting block cavity 41, an inclined plane block groove 37 with an upward opening is formed in the upper side of the sleeve sliding block 38, and the inclined plane block 14 can be clamped into the inclined plane block groove 37.
Beneficially, damper 101 is including locating downside and the decurrent shock attenuation chamber 33 of opening in the fixing base 18, shock attenuation chamber 33 left and right wall symmetry and fixedly connected with shock attenuation fixed block 49, only two fixedly connected with shock attenuation axle 35 between main part fixed block axle 45, main part 11 upper end fixedly connected with main part fixed block 32, be equipped with bilateral symmetry and opening in the main part fixed block 32 and upwards be close to the connecting rod chamber 44 of shock attenuation fixed block 49 direction.
Beneficially, the front wall and the rear wall of the connecting rod cavity 44 are fixedly connected with a main body fixing block shaft 45, the outer circular surface of the damping shaft 35 is bilaterally symmetrical and is connected with a damping shaft sliding block 34 in a sliding manner, a sliding block cavity 48 with a downward opening and a left-right penetrating through is arranged at the inner lower side of the damping shaft sliding block 34, and the left wall and the right wall of the sliding block cavity 48 are connected with a connecting rod shaft 47 in a rotating manner.
Advantageously, a connecting rod 46 is fixedly connected to the outer circumferential surface of the connecting rod shaft 47 and the main body fixing block shaft 45, and a damping spring 50 is fixedly connected between an end surface of the damping shaft sliding block 34 close to the damping fixing block 49 and a wall of the damping fixing block 49 close to the damping shaft sliding block 34.
Beneficially, a pulley cavity 28 is disposed at the rear side of the sleeve cavity 53, the rear end of the sleeve shaft 43 extends into the pulley cavity 28 and is fixedly connected with a driven pulley 51, the rear end of the auxiliary wheel shaft 23 extends into the pulley cavity 28 and is fixedly connected with a driving pulley 30, and a pulley belt 29 is wound between the driving pulley 30 and the driven pulley 51.
The use steps herein are described in detail below with reference to fig. 1-5:
in the initial state, the motor 31 is not started.
When a downhill is needed, the main body 11 is inclined, the balance slide block 22 moves left under the action of gravity, the balance slide block 22 moves left to drive the inclined plane block 14 to descend, the inclined plane block 14 descends to be clamped in the inclined plane block groove 37 and drive the sleeve slide block 38 to move forward, the sleeve slide block 38 moves forward to drive the sleeve 42 to move forward, the coil shaft 27 is meshed with the sleeve shaft 43, the auxiliary wheel 24 rotates to drive the auxiliary wheel shaft 23 to rotate, the auxiliary wheel shaft 23 rotates to drive the driving pulley 30 to rotate, the driving pulley 30 rotates to drive the driven pulley 51 to rotate through the pulley belt 29, the driven pulley 51 rotates to drive the sleeve shaft 43 to rotate, the sleeve cavity 53 drives the coil shaft 27 to rotate through the sleeve 42, the coil shaft 27 rotates to drive the coil 26 to rotate, and the coil 26 rotates to react with the generating magnet 13.
When ascending, the main body 11 inclines, the balance slide block 22 moves to the right under the action of gravity, the balance slide block 22 moves to the right and contacts the induction block 21 to start the motor 31, the motor 31 is started to drive the auxiliary wheel shaft 23 to rotate, the auxiliary wheel shaft 23 rotates to drive the auxiliary wheel 24 to rotate, and the auxiliary wheel 24 rotates to assist a user to ascend.
When normally traveling, the fixing base 18 remains stationary, the main body 11 moves up and down due to vibration in the traveling process, the main body 11 moves to drive the main body fixing block 32 to move up and down, the main body fixing block 32 moves to drive the connecting rod 46 to rotate, the connecting rod 46 rotates to drive the damping shaft sliding block 34 to move left and right, and the damping shaft sliding block 34 moves to compress or elongate the damping spring 50 to slow down the vibration.
The invention has the beneficial effects that: the device can automatically detect the running state of the bicycle, can convert part of downhill power into electric power for storage when the bicycle runs downhill, and can reduce the downhill speed through certain resistance to prevent the situation that the speed is too high and the danger cannot be reacted in time.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. A bicycle uphill and downhill auxiliary power driving apparatus includes a main body, characterized in that: the power driving mechanism is arranged in the main body and comprises an auxiliary wheel cavity which is provided with the inner lower side of the main body and has a downward opening, a motor is fixedly arranged on the front side of the auxiliary wheel cavity, the rear end of the motor is in power connection with an auxiliary wheel shaft, the auxiliary wheel shaft penetrates through the auxiliary wheel cavity and is fixedly connected with an auxiliary wheel, a power generation cavity is arranged on the upper side of the auxiliary wheel cavity, the rear wall of the power generation cavity is rotatably connected with a coil shaft, the outer circular surface of the coil shaft is fixedly connected with a coil, the left wall and the right wall of the power generation cavity are symmetrically and fixedly connected with a power generation magnet, a sleeve cavity is arranged on the rear side of the power generation cavity, a sleeve sliding block capable of sliding back and forth is arranged in the sleeve cavity, the rear wall of the sleeve cavity is rotatably connected with a sleeve shaft, the rear end of the coil shaft extends into the sleeve cavity and, the utility model discloses a damping device, including sleeve cavity, power generation cavity, balance slider cavity, intercommunication, main part upside, balancing slider cavity, main part upside, damping mechanism, sleeve slider front end with fixedly connected with sleeve spring between the sleeve cavity antetheca, the power generation cavity upside is equipped with balanced slider cavity, gliding balanced slider cavity is equipped with around the ability to balance the slider cavity, the intercommunication of balanced slider cavity upside bilateral symmetry is equipped with blocks the slider cavity, it is equipped with gliding slider that blocks from top to bottom to block the slider cavity, balanced slider cavity left side wall fixedly connected with electro-magnet.
2. An uphill/downhill auxiliary power driving apparatus for a bicycle according to claim 1, wherein: block the slider up end with block fixedly connected with between the slider chamber upper wall and block the slider spring, balanced slider chamber downside intercommunication be equipped with the inclined plane piece chamber of sleeve chamber intercommunication, inclined plane piece intracavity is equipped with gliding inclined plane piece from top to bottom, inclined plane piece chamber right side intercommunication is equipped with the stopper chamber.
3. An uphill/downhill auxiliary power driving apparatus for a bicycle according to claim 2, wherein: the stopper intracavity be equipped with can slide from top to bottom and with inclined plane piece fixed connection's stopper, under the stopper terminal surface with fixedly connected with stopper spring between the stopper chamber lower wall, the upside is equipped with the ascending inclined plane piece groove of opening in the sleeve slider, the inclined plane piece can be blocked in the inclined plane piece inslot.
4. An uphill/downhill auxiliary power driving apparatus for a bicycle according to claim 1, wherein: damping mechanism is including locating downside and the decurrent shock attenuation chamber of opening in the fixing base, left and right wall symmetry and fixedly connected with shock attenuation fixed block in shock attenuation chamber, only two fixedly connected with damping shaft between the main part fixed block axle, main part upper end fixedly connected with main part fixed block, be equipped with bilateral symmetry in the main part fixed block and the opening upwards to being close to the connecting rod chamber of shock attenuation fixed block direction.
5. An uphill/downhill auxiliary power driving apparatus for a bicycle according to claim 4, wherein: the connecting rod comprises a connecting rod cavity and is characterized in that a main body fixing block shaft is fixedly connected to the front wall and the rear wall of the connecting rod cavity, damping shaft sliding blocks are symmetrically arranged on the left side and the right side of the outer circular surface of each damping shaft in a sliding mode and are connected with the damping shaft sliding blocks in a sliding mode, a sliding block cavity with a downward opening and penetrating through the inner side and the outer side of the damping shaft sliding block in a left-right mode is.
6. An uphill/downhill auxiliary power driving apparatus for a bicycle according to claim 5, wherein: the connecting rod shaft and the outer circular surface of the main body fixing block shaft are fixedly connected with a connecting rod, and a damping spring is fixedly connected between one end face, close to the damping fixing block, of the damping shaft sliding block and one wall, close to the damping shaft sliding block, of the damping fixing block.
7. An uphill/downhill auxiliary power driving apparatus for a bicycle according to claim 1, wherein: the rear side of the sleeve cavity is provided with a belt wheel cavity, the rear end of the sleeve shaft extends into the belt wheel cavity and is fixedly connected with a driven belt wheel, the rear end of the auxiliary wheel shaft extends into the belt wheel cavity and is fixedly connected with a driving belt wheel, and a belt wheel belt is wound between the driving belt wheel and the driven belt wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110051187.8A CN112572684A (en) | 2021-01-14 | 2021-01-14 | Auxiliary power driving equipment for ascending and descending of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110051187.8A CN112572684A (en) | 2021-01-14 | 2021-01-14 | Auxiliary power driving equipment for ascending and descending of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112572684A true CN112572684A (en) | 2021-03-30 |
Family
ID=75145035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110051187.8A Withdrawn CN112572684A (en) | 2021-01-14 | 2021-01-14 | Auxiliary power driving equipment for ascending and descending of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112572684A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002689A (en) * | 2021-04-07 | 2021-06-22 | 浙江阿波罗摩托车制造有限公司 | Children electric bicycle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202541769U (en) * | 2012-05-04 | 2012-11-21 | 百顺松涛（天津）动力电池科技发展有限公司 | Self-generating electric bicycle |
| CN104044470A (en) * | 2014-06-17 | 2014-09-17 | 仲杏英 | Automatic hill decelerating and accelerating device |
| CN206202000U (en) * | 2016-08-31 | 2017-05-31 | 李美霖 | A kind of electric motor car descending potential energy reclaims gas-to electricity device |
| CN110203315A (en) * | 2019-06-17 | 2019-09-06 | 广州思天汽车用品有限公司 | A kind of energy saving and environment friendly shared vehicles |
| CN111469965A (en) * | 2020-05-06 | 2020-07-31 | 仙居夏朗新能源科技有限公司 | Electric motor car auxiliary assembly with power recovery function |
| CN111469673A (en) * | 2020-05-06 | 2020-07-31 | 仙居夏朗新能源科技有限公司 | Electric vehicle brake device capable of recovering energy |
| CN111791979A (en) * | 2020-07-22 | 2020-10-20 | 仙居夏朗新能源科技有限公司 | Power auxiliary device of electric vehicle |
-
2021
- 2021-01-14 CN CN202110051187.8A patent/CN112572684A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202541769U (en) * | 2012-05-04 | 2012-11-21 | 百顺松涛（天津）动力电池科技发展有限公司 | Self-generating electric bicycle |
| CN104044470A (en) * | 2014-06-17 | 2014-09-17 | 仲杏英 | Automatic hill decelerating and accelerating device |
| CN206202000U (en) * | 2016-08-31 | 2017-05-31 | 李美霖 | A kind of electric motor car descending potential energy reclaims gas-to electricity device |
| CN110203315A (en) * | 2019-06-17 | 2019-09-06 | 广州思天汽车用品有限公司 | A kind of energy saving and environment friendly shared vehicles |
| CN111469965A (en) * | 2020-05-06 | 2020-07-31 | 仙居夏朗新能源科技有限公司 | Electric motor car auxiliary assembly with power recovery function |
| CN111469673A (en) * | 2020-05-06 | 2020-07-31 | 仙居夏朗新能源科技有限公司 | Electric vehicle brake device capable of recovering energy |
| CN111791979A (en) * | 2020-07-22 | 2020-10-20 | 仙居夏朗新能源科技有限公司 | Power auxiliary device of electric vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002689A (en) * | 2021-04-07 | 2021-06-22 | 浙江阿波罗摩托车制造有限公司 | Children electric bicycle |
| CN113002689B (en) * | 2021-04-07 | 2022-03-15 | 浙江阿波罗运动科技股份有限公司 | Children electric bicycle |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210330 |
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| WW01 | Invention patent application withdrawn after publication |