WO2023099393A1 - Elektrische antriebseinrichtung für ein fahrrad und fahrrad damit - Google Patents
Elektrische antriebseinrichtung für ein fahrrad und fahrrad damit Download PDFInfo
- Publication number
- WO2023099393A1 WO2023099393A1 PCT/EP2022/083453 EP2022083453W WO2023099393A1 WO 2023099393 A1 WO2023099393 A1 WO 2023099393A1 EP 2022083453 W EP2022083453 W EP 2022083453W WO 2023099393 A1 WO2023099393 A1 WO 2023099393A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- freewheel element
- drive shaft
- drive
- transmission
- drive device
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 91
- 238000009434 installation Methods 0.000 description 8
- 210000003205 muscle Anatomy 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- B62M6/55—Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
-
- 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
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
- B62M11/145—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the bottom bracket
Definitions
- the present invention relates to an electric drive device for a bicycle.
- the invention also relates to a bicycle with the electric drive device.
- Electric bicycles are known, in particular hybrid pedelecs driven electrically by means of an electric motor and by muscle power by means of pedals. These have an electric motor arranged on a receiving area of a pedal shaft of the electric bicycle. A transmission for torque transmission from the electric motor and the pedals of the electric bicycle to a drive shaft of the electric bicycle is also arranged in the receiving area of the pedal shaft of the electric bicycle.
- the installation space in the area of the receiving area of the pedal shaft of the electric bicycle is limited.
- the invention relates to an electric drive device for a bicycle.
- the drive device can be designed to transmit an electrically generated drive force to a drive axle of the bicycle.
- the drive device can be designed to transmit a drive force generated by muscle power, for example by turning the pedals of the bicycle, to the drive axle of the bicycle.
- a torque can be generated by means of the drive device, which can be transmitted to the drive axle of the bicycle to drive the same.
- the drive device can have a hybrid design, ie it can be designed both for driving the bicycle electrically and for driving it using muscle power.
- the bicycle can be an electric bicycle, in particular a hybrid-powered pedelec. With a pedelec, a driving force generated by muscle power of the bicycle can be combined with an electrically generated driving force of the bicycle.
- the electric drive device includes a transmission arranged in a bottom bracket of the bicycle.
- a bottom bracket can be the portion of the bicycle frame on which the pedals for driving the bicycle are arranged.
- a housing of the bottom bracket can be designed in the form of a tube in which the pedals of the bicycle are mounted.
- the gear can also be stored in the housing.
- a chain ring can be arranged in the area of the bottom bracket, which can be designed to transmit the drive force generated by the drive device to a drive axle of the bicycle.
- the transmission can be designed to translate the drive force applied by the drive device in the form of a drive speed generated by the latter into an output speed acting on a drive shaft by means of various transmission elements.
- the transmission comprises at least one planetary gear set, the planetary gear set comprising at least three rotating elements which are arranged such that they can rotate relative to one another and are designed for torque transmission.
- the three rotary elements arranged to be rotatable relative to each other can be a sun gear, a planet carrier comprising at least one planet gear and a ring gear of the planetary gear set.
- the sun gear, the planet carrier and the ring gear can each be arranged on rotatably mounted shafts.
- the sun gear, the planetary gear and the ring gear can each be designed as gears that mesh with one another. Depending on the diameter of the individual gears and their relative rotational speed, torque can be transmitted between the sun gear, the planet carrier and the ring gear.
- the ring gear can be blocked, so the ring gear can be fixed.
- the sun gear can be coupled to a drive shaft of the bicycle.
- the planet carrier can be coupled to a pedal crankshaft of the bicycle. Since both the sun gear and the ring gear mesh with the planet carrier, a torque can thus be transmitted from the drive device to the drive shaft of the bicycle.
- the electric drive device comprises an electric motor arranged offset to the transmission and a drive shaft mounted at least on a pedal crankshaft of the bicycle.
- the electric motor can be designed to convert electrical energy into mechanical energy.
- the electric motor can be designed as a synchronous motor or an asynchronous motor, for example.
- An output shaft of the electric motor can, for example, be permanently connected in a torque-proof manner to a rotor of the electric motor.
- the electric motor can, for example, be arranged axially parallel to a longitudinal axis of the transmission or the bottom bracket.
- the pedal crankshaft can be a mechanical shaft mounted along the longitudinal direction of the bottom bracket.
- the pedal crankshaft can protrude from the bottom bracket at least at one of its end sections.
- a pedal crank can be mounted on opposite end sections of the pedal crankshaft, on which a pedal for mechanically driving the bicycle can be mounted.
- the drive shaft can be designed in the form of a hollow shaft which is mechanically operatively connected to the pedal crankshaft.
- the driving force generated by the pedal cranks can be transmitted to the drive shaft in the form of a torque via the pedal crank shaft.
- the drive shaft can also be mechanically operatively connected to at least one rotating element of the planetary gear set of the transmission.
- the drive shaft can also be mechanically operatively connected to an output shaft of the electric motor.
- the electric drive device comprises a drive wheel arranged coaxially to the drive shaft for transmitting a motor force of the electric motor to the drive shaft.
- the drive wheel can be designed in the form of a gear wheel, which can be coupled to an output shaft of the electric motor via a traction mechanism.
- the traction means can be a chain or a toothed belt, which can come with a toothing of the gear wheel.
- the drive wheel can be a belt pulley, which can be connected to the traction mechanism in a friction-locked manner.
- the electric drive device includes a first freewheel element and a second freewheel element.
- the first freewheel element and the second freewheel element are arranged together in a one-piece freewheel element carrier.
- the first freewheel element can be designed to two components of To couple drive device depending on the direction of rotation.
- the first freewheeling element can be designed to connect the two components of the drive device in a first direction of rotation for torque transmission.
- the connection of the two components can be released or interrupted by means of the first freewheel element.
- rotation of a shaft within the drive device can be blocked in a first direction of rotation by means of the first freewheel element. What was said about the first freewheel element applies analogously to the second freewheel element.
- a direction-dependent coupling function of two components of the drive device can be implemented using the first or the second freewheel element.
- the first and second freewheel elements can have pawls.
- the first and second freewheel elements can have pinch rollers, sprags, claw rings or wrap springs.
- the first and second sprags are co-located in a one-piece sprag carrier.
- the freewheel element carrier is therefore a single component in which the first freewheel element and the second freewheel element are arranged in sections.
- the drive wheel can be connected to the drive shaft by means of the first freewheel element via the one-piece freewheel element carrier.
- one of the rotary elements of the planetary gear set of the transmission can be connected to the drive shaft by means of the second freewheel element via the one-piece freewheel element carrier.
- the first freewheel element can therefore realize a direction-dependent coupling of the drive wheel or of the electric motor connected to it with the drive shaft.
- the second freewheel element can therefore implement a direction-dependent coupling of one of the rotary elements of the planetary gear set of the transmission, for example the ring gear, with the drive shaft.
- a power transmission device of the transmission can be a torque-transmitting, for example rotatable, component for power transmission arranged within the transmission.
- a power transmission device of the transmission can be a plurality of components for power transmission arranged within the transmission in a torque-transmitting, in particular rotatable, manner relative to one another.
- both the freewheel element carrier itself and another of the rotary elements of the planetary gear set are designed in one piece with a power transmission device of the transmission.
- components can be saved.
- installation space within the bottom bracket can also be saved, since fewer components have to be accommodated inside the bottom bracket.
- the drive device can also be constructed more simply and cost-effectively, since fewer components have to be used.
- the power transmission device of the transmission can be formed by the drive shaft.
- one of the rotary elements of the planetary gear set of the transmission can therefore be connectable to the drive shaft by means of the second freewheel element via the one-piece freewheel element carrier.
- Another of the rotating elements of the planetary gear set of the transmission can be formed in one piece with the input shaft. Accordingly, components such as gearing between the drive shaft and the rotating elements of the planetary gear set can be saved, particularly in the construction of the transmission. Due to the one-piece design, ie the direct connection, of one of the rotating elements of the planetary gear set to the drive shaft, a friction loss during torque transmission between these components can also be minimized.
- the power transmission device of the transmission can be of the one-piece design Freewheel element carrier are formed.
- the one-piece freewheel element carrier can therefore be formed in one piece with a rotating element of the planetary gear set.
- the drive device can therefore be mounted more easily.
- both the function of torque transmission and the function of a clutch between two torque-transmitting components can be implemented using a single component. The complexity of the transmission can be reduced as a result.
- the power transmission device of the transmission can be formed by the drive shaft and the one-piece freewheel element carrier.
- the functions and advantages described above can be combined.
- the drive shaft of the bicycle can be mechanically operatively connected to at least one pedal crank, with a power transmission path being able to lead to the drive shaft from the pedal crank via the gearbox.
- the pedal crank can be mounted, for example, on the pedal crank shaft.
- the drive shaft can be mechanically operatively connected to the pedal crank via the pedal crank shaft on which the drive shaft is mounted.
- the drive shaft can be connected to other transmission components via the first or the second freewheel element. Accordingly, if a drive force generated manually by stepping on the pedals mounted on the cranks is applied to the cranks, this can be transmitted to the drive shaft via the operative connection described above.
- the motor power of the electric motor can be transmitted to the drive shaft in the end region of the power transmission path.
- the motor power of the electric motor can be transmitted to the drive shaft by means of the drive wheel arranged coaxially with the drive shaft.
- the drive wheel can be arranged within the drive device in such a way that the engine power of the electric motor at the output of the transmission is transmitted to the drive shaft.
- the driving force applied via the cranks can therefore initially the pedal crankshaft to the transmission for torque transmission, i.e. to set a suitable translation of the rotary elements of the planetary gear set. After a suitable translation has been set, that is to say a shift has taken place, the driving force can be increased by the engine power of the electric motor and applied to the drive shaft.
- the drive wheel can be mounted on the drive shaft.
- the drive wheel can be mounted directly on the drive shaft.
- the drive wheel can be mounted indirectly on the drive shaft, for example by means of a further rotary element.
- the drive wheel can in particular be mounted on the drive shaft in a torque-transmitting manner. This configuration offers the advantage that the engine power of the electric motor can be transmitted to the drive shaft in a particularly simple manner by means of the drive wheel.
- the drive wheel can be mounted in a housing of the drive device. By mounting the drive wheel in the housing of the drive device, installation space within the drive device can be saved.
- the first freewheel element and the second freewheel element can be arranged axially adjacent to one another at least in sections within the one-piece freewheel element carrier with respect to a longitudinal axis of the drive shaft.
- the longitudinal axis of the drive shaft can, for example, correspond to the axis along which the drive shaft extends in the bottom bracket.
- the first freewheel element and the second freewheel element can be arranged adjacent to one another at least in sections along this axis.
- the first freewheel element and the second freewheel element can touch at their respective outer surfaces, which are aligned perpendicular to the longitudinal axis of the drive shaft.
- the extent of the one-piece freewheel element carrier can therefore be greater along the longitudinal axis of the drive shaft than perpendicular to this axis. In this embodiment, installation space can thus be saved in the radial direction with respect to the longitudinal axis of the drive shaft.
- the first freewheel element and the second freewheel element can be arranged radially adjacent to one another at least in sections within the one-piece freewheel element carrier with respect to the longitudinal axis of the drive shaft.
- the longitudinal axis of the drive shaft can, for example, correspond to the axis along which the drive shaft extends in the bottom bracket.
- the first freewheel element and the second freewheel element can be arranged adjacent to one another at least in sections.
- the extent of the one-piece freewheel element carrier can therefore be greater perpendicular to the longitudinal axis of the drive shaft than parallel to this axis.
- the first freewheel element and the second freewheel element can be aligned in the same direction within the one-piece freewheel element carrier with respect to a longitudinal axis of the drive shaft.
- the first freewheel element and the second freewheel element can be designed as a first and second pawl.
- the first and the second pawl can be aligned within the one-piece freewheel element carrier in such a way that the pawls can be extended radially outward at least in sections with respect to the longitudinal axis of the drive shaft.
- the first and second pawls can be deployed radially inward with respect to the longitudinal axis of the drive shaft.
- Other configurations of the first and second freewheel elements and their respective alignment are also conceivable.
- This embodiment offers the advantage that the first and the second freewheel element can be formed particularly easily within the one-piece freewheel element carrier, namely in the same direction.
- the first freewheel element and the second freewheel element can be aligned in opposite directions within the one-piece freewheel element carrier with respect to a longitudinal axis of the drive shaft.
- the first freewheel element and the second freewheel element can be designed as a first and second pawl.
- the first and the second The pawl can be aligned within the one-piece freewheel element carrier in such a way that the first pawl can be extended radially outward at least in sections with respect to the longitudinal axis of the drive shaft.
- the second pawl can be extended radially inwards, at least in sections, with respect to the longitudinal axis of the drive shaft.
- Other configurations of the first and second freewheel elements and their respective alignment are also conceivable.
- This embodiment offers the advantage that the first and the second freewheel element can be formed particularly easily within the one-piece freewheel element carrier, namely mirrored in the axial direction.
- the first freewheel element and the second freewheel element can be arranged within the one-piece freewheel element carrier at a predetermined distance from a longitudinal axis of the drive shaft.
- the predetermined distance of the one-piece freewheel element carrier from the longitudinal axis of the drive shaft can be determined or designed, for example, by an expected load absorption of the first freewheel element and the second freewheel element.
- the first freewheel element and the second freewheel element can be arranged at a comparatively large distance from the longitudinal axis of the drive shaft when a comparatively high load is to be expected.
- the first freewheel element and the second freewheel element can be arranged at a comparatively small distance from the longitudinal axis of the drive shaft when a comparatively low load is to be expected.
- the torque acting on the one-piece freewheel element carrier can thus be adjusted by suitably selecting the distance between the same and the longitudinal axis of the drive shaft. The service life of the one-piece freewheel element carrier can thus be extended.
- the invention in a second aspect, relates to a bicycle comprising the electric drive device according to the first aspect and two pedal cranks arranged on opposite end sections of the pedal crank shaft.
- the pedal cranks are mechanically operatively connected to the drive shaft attached to the pedal crank shaft for manually driving the bicycle. Additional features, embodiments and advantages can be found in the descriptions of the first aspect. The opposite also represent features, embodiments and advantages of the second aspect features, embodiments and advantages of the first aspect.
- FIG. 1 schematically shows a section of an electric drive device arranged in a bottom bracket of a bicycle according to an embodiment of the invention.
- FIG. 2 schematically shows a section of an electric drive device arranged in a bottom bracket of a bicycle according to a further embodiment of the invention.
- FIG. 3a schematically shows a section of an electric drive device arranged in a bottom bracket of a bicycle according to a further embodiment of the invention.
- FIG. 3b schematically shows a section of an electric drive device arranged in a bottom bracket of a bicycle according to a further development of the embodiment of FIG. 3a.
- FIG. 4 schematically shows a section of an electric drive device arranged in a bottom bracket of a bicycle according to a further embodiment of the invention.
- FIG. 1 schematically shows a section of an electric drive device 1 arranged in a bottom bracket 3 of a bicycle, not shown in FIG.
- the drive device 1 is continued horizontally mirrored downwards with respect to the view shown.
- the electric drive device 1 includes a gear 4 arranged in the bottom bracket 3.
- the gear 4 is shown in FIG arranged planet gears PR and a ring gear HR.
- the planetary gear 4 is designed in a known manner for torque transmission by means of the sun gear SR, the planetary carrier PT and the ring gear HR.
- the drive device 1 also includes an electric motor 5 arranged offset to the transmission 4 for electrically driving the bicycle.
- the electric motor 5 is arranged axially parallel to a longitudinal axis of the transmission 4 in the illustration in FIG.
- the electric motor 5 is offset relative to the gear 4 relative to the plane of the figure in FIG.
- a pedal crankshaft 6 is mounted in the bottom bracket 3 of the bicycle and is mechanically operatively connected to pedal cranks (not shown in FIG. 1) for driving the bicycle by muscle power.
- a drive shaft 7 is mounted on the pedal crankshaft 6 .
- the drive shaft 7 is designed as a hollow shaft in the illustration in FIG. 1, which is mounted on the pedal crankshaft 6 by means of bearings L1, L2.
- the electric motor 5 is mechanically operatively connected to a drive wheel 8 arranged coaxially to the drive shaft 7 .
- a torque generated by the electric motor 5 is transmitted to the drive wheel 8 and from there to the drive shaft 7 by means of a traction mechanism 81 , a chain 81 in the illustration in FIG.
- the drive wheel 8 is mounted on the drive shaft 7 by means of a ball bearing KL1.
- the electric drive device 1 also includes a first freewheel element F1 and a second freewheel element F2.
- the first and second freewheeling elements F1, F2 are shown in FIG. 1 as the first and second pawls, respectively.
- the first pawl F1 and the second pawl F2 are arranged together in a one-piece freewheel element carrier 9 .
- the one-piece freewheel element carrier 9 is a single component in which the first freewheel element F1 and the second freewheel element F2 are arranged in sections.
- the drive wheel 8 can be connected to the drive shaft 7 in order to transmit the motor power of the electric motor 5.
- the electric motor 5 by means of the first freewheel element F1 are coupled to the drive shaft 7 via the one-piece freewheel element carrier 9 depending on the direction of rotation.
- One of the rotary elements of the planetary gear set of the transmission 4 can be connected to the drive shaft 7 by means of the second freewheel element F2, in particular via the one-piece freewheel element carrier 9.
- a rotary element 12 of the transmission 4 which is only partially represented, can be connected to the drive shaft 7 via the second freewheel element F2. Accordingly, this rotary element 12 of the transmission 4 can be coupled to the drive shaft 7 by means of the second freewheel element F2 via the one-piece freewheel element carrier 9, depending on the direction of rotation.
- another of the rotary elements of the planetary gear set of the transmission 4 is also designed in one piece with a power transmission device 7, 9 of the transmission 4.
- the power transmission device 7, 9 of the transmission 4 is formed by the freewheel element carrier 9, which is designed in one piece.
- the planetary carrier PT of the planetary gear set of the transmission 4 is designed in one piece with this power transmission device 9 .
- the first freewheel element F1 and the second freewheel element F2 are shown in the one-piece freewheel element carrier 9 in the illustration of FIG. 1 as the first or second pawl F1, F2.
- the first and second pawl F1, F2 are arranged axially adjacent to one another with respect to a longitudinal axis LA of the drive shaft 7.
- the first and second pawl F1, F2 in the representation of Figure 1 with respect to the longitudinal axis LA of the drive shaft 7 are each aligned radially outward, ie in the same direction.
- the first and second pawl F1, F2 are arranged at a comparatively small predetermined distance from the longitudinal axis LA of the drive shaft 7 in the representation of FIG.
- FIG. 2 schematically shows a section of an electric drive device 11 according to a further embodiment.
- the elements of the drive device 11 provided with the same reference numerals in FIG. 2 are the same as those of the Drive device 1 of Figure 1 equivalent. These are not discussed further in the explanation of FIG.
- the drive device 11 of Figure 2 differs from the drive device 1 of Figure 1 in that here the ring gear HR of the planetary gear set of the transmission 4 can be connected to the drive shaft 7 by means of the second freewheel element F2, in particular via the one-piece freewheel element carrier 9.
- the power transmission device 7, 9 of the transmission 4 is also formed by the one-piece freewheel element carrier 9 in the illustration in FIG.
- the sun wheel SR of the planetary wheel set of the transmission 4 and the one-piece freewheel element carrier 9 are designed in one piece instead of the planetary carrier PT.
- first freewheeling element F1 and the second freewheeling element F2 are also shown as a first or second pawl F1, F2.
- the first and second pawl F1, F2 are arranged radially adjacent to one another at least in sections with respect to a longitudinal axis LA of the drive shaft 7.
- the first pawl F1 in the illustration in FIG. 2 is oriented radially inward, but the second pawl F2 is oriented radially outward with respect to the longitudinal axis LA of the drive shaft 7 .
- installation space can be saved in the axial direction of the drive device 11 .
- the first and second pawl F1, F2 in the illustration in FIG. 2 are arranged at a greater predetermined distance from the longitudinal axis LA of the drive shaft 7 than in the illustration in FIG.
- FIG. 3a schematically shows a section of an electric drive device 21 according to a further embodiment.
- the elements of the drive device 21 provided with the same reference symbols in FIG. 3 are equivalent to those of the drive device 1 of FIG. 1 or the drive device 11 of FIG. These are not discussed further in the explanation of FIG. 3a.
- the ring gear HR of the planetary gear set of the transmission 4 can be connected to the drive shaft 7 by means of the second freewheel element F2, ie via the one-piece freewheel element carrier 9.
- the sun gear SR of the planetary gear set of the transmission 4 and the drive shaft 7 are designed in one piece.
- first freewheeling element F1 and the second freewheeling element F2 are also shown as first and second pawls F1, F2, respectively.
- the first and second pawl F1, F2 are at least partially axially adjacent with respect to a longitudinal axis LA of the drive shaft 7 and are each arranged radially inward, that is to say in the same direction as one another.
- the first and second pawl F1, F2 in the representation of Figure 3a are arranged at a greater predetermined distance from the longitudinal axis LA of the drive shaft 7 compared to the representation of Figures 1 and 2.
- the pawls F1 and F2 can absorb a greater torque compared to the drive devices 1 and 11.
- FIG. 3b schematically shows a development of the drive device 21 according to FIG. 3a.
- the drive shaft 7' of the drive device 21 is extended outwards in the radial direction with respect to the longitudinal axis LA.
- This configuration offers the advantage that a further drive wheel 8' for transmitting a drive force from the drive device 21 to a drive axle of the bicycle can be mounted on the drive shaft 7' at a shortened distance from it.
- a sealing element 10a is arranged between the radially outwardly extended drive shaft 7' and a housing 10 of the drive device 21.
- the housing 10 of the drive device 21 can be sealed against the ingress of dirt and/or moisture by means of the sealing element 10a.
- FIG. 4 schematically shows a section of an electric drive device 31 according to a further embodiment.
- the elements of the drive device 31 provided with the same reference symbols in FIG. 4 are to those of the Drive device 1 of Figure 1, the drive device 11 of Figure 2 or the drive device 21 of Figures 3a and 3b equivalent. These elements are not discussed further in the explanation of FIG.
- the rotating element 12 of the planetary gearset of the transmission 4 which is only partially shown, can be connected to the drive shaft 7 by means of the second freewheel element F2, in particular via the one-piece freewheel element carrier 9.
- the power transmission device 7, 9 of the transmission 4 is supported both by the drive shaft 7 and by the one-piece freewheel element carrier 9 educated.
- the sun gear SR of the planetary gear set of the transmission 4 is formed in one piece in the representation of FIG. Accordingly, in the drive device 31 of FIG.
- the drive device 31 can be constructed in a particularly simple manner, since fewer components have to be used than for the construction of the drive devices 1 , 11 and 21 .
- the drive wheel 8 is mounted in the housing 10 of the drive device 31 in the drive device 31 of FIG.
- the one-piece freewheel element carrier 9 can be arranged radially on the inside of the ball bearing KL1 of the drive wheel 8 with respect to the longitudinal axis LA of the drive shaft 7 .
- the Freilaufelement investigating- ger 9 and the ball bearing KL 1 can therefore be stacked radially. Installation space can thus be saved in the axial direction with respect to the longitudinal axis LA of the drive shaft 7 . reference sign
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- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22822504.1A EP4440919A1 (de) | 2021-11-30 | 2022-11-28 | Elektrische antriebseinrichtung für ein fahrrad und fahrrad damit |
CN202280072281.4A CN118159464A (zh) | 2021-11-30 | 2022-11-28 | 用于自行车的电驱动装置和具有该电驱动装置的自行车 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021213515.3A DE102021213515B3 (de) | 2021-11-30 | 2021-11-30 | Elektrische Antriebseinrichtung für ein Fahrrad und Fahrrad damit |
DE102021213515.3 | 2021-11-30 |
Publications (1)
Publication Number | Publication Date |
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WO2023099393A1 true WO2023099393A1 (de) | 2023-06-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2022/083453 WO2023099393A1 (de) | 2021-11-30 | 2022-11-28 | Elektrische antriebseinrichtung für ein fahrrad und fahrrad damit |
Country Status (5)
Country | Link |
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EP (1) | EP4440919A1 (de) |
CN (1) | CN118159464A (de) |
DE (1) | DE102021213515B3 (de) |
TW (1) | TW202323124A (de) |
WO (1) | WO2023099393A1 (de) |
Citations (4)
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DE102010003650A1 (de) * | 2010-04-06 | 2011-10-06 | Robert Bosch Gmbh | Antriebsvorrichtung für ein Fahrrad |
EP3165438A1 (de) * | 2014-07-01 | 2017-05-10 | Panasonic Intellectual Property Management Co., Ltd. | Fahhrad mit elektrischem hilfsfantrieb |
DE102016121861A1 (de) * | 2015-11-30 | 2017-06-01 | Shimano Inc. | Fahrradantriebseinheit |
WO2019015811A1 (de) * | 2017-07-19 | 2019-01-24 | Robert Bosch Gmbh | Antriebsanordnung und fahrzeug |
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TWM483912U (zh) | 2014-02-21 | 2014-08-11 | J D Components Co Ltd | 可防止曲柄軸跟轉之中置電機 |
JP6675110B2 (ja) | 2015-07-14 | 2020-04-01 | パナソニックIpマネジメント株式会社 | 駆動ユニットおよび電動アシスト自転車 |
CN205239827U (zh) | 2015-12-09 | 2016-05-18 | 唐光庆 | 一种自行车低减速比中置式双动力驱动装置 |
DE102016225142B4 (de) | 2016-12-15 | 2023-08-10 | Zf Friedrichshafen Ag | Getriebe für ein Fahrrad |
DE102016225168A1 (de) | 2016-12-15 | 2018-06-21 | Zf Friedrichshafen Ag | Getriebe für ein Fahrrad |
CN110785344B (zh) | 2017-05-23 | 2021-06-01 | 马勒国际有限公司 | 具有包括功率分流的电驱动器的自行车 |
DE102017218448A1 (de) | 2017-10-16 | 2019-04-18 | Zf Friedrichshafen Ag | Getriebe für ein Fahrrad |
JP6936186B2 (ja) | 2018-05-30 | 2021-09-15 | 株式会社シマノ | 人力駆動車用ドライブユニット |
DE102020203711B4 (de) | 2020-03-23 | 2021-10-07 | Zf Friedrichshafen Ag | Antriebseinheit |
DE102021204634B3 (de) | 2021-05-07 | 2022-08-18 | Zf Friedrichshafen Ag | Getriebe für ein Fahrrad und Fahrrad |
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2021
- 2021-11-30 DE DE102021213515.3A patent/DE102021213515B3/de active Active
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2022
- 2022-10-25 TW TW111140417A patent/TW202323124A/zh unknown
- 2022-11-28 EP EP22822504.1A patent/EP4440919A1/de active Pending
- 2022-11-28 WO PCT/EP2022/083453 patent/WO2023099393A1/de active Application Filing
- 2022-11-28 CN CN202280072281.4A patent/CN118159464A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010003650A1 (de) * | 2010-04-06 | 2011-10-06 | Robert Bosch Gmbh | Antriebsvorrichtung für ein Fahrrad |
EP3165438A1 (de) * | 2014-07-01 | 2017-05-10 | Panasonic Intellectual Property Management Co., Ltd. | Fahhrad mit elektrischem hilfsfantrieb |
DE102016121861A1 (de) * | 2015-11-30 | 2017-06-01 | Shimano Inc. | Fahrradantriebseinheit |
WO2019015811A1 (de) * | 2017-07-19 | 2019-01-24 | Robert Bosch Gmbh | Antriebsanordnung und fahrzeug |
Also Published As
Publication number | Publication date |
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DE102021213515B3 (de) | 2023-03-23 |
CN118159464A (zh) | 2024-06-07 |
EP4440919A1 (de) | 2024-10-09 |
TW202323124A (zh) | 2023-06-16 |
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