EP4638252A1 - System zum verspannen einer energiespeichervorrichtung in einem rahmen mit einer abdeckung und fahrrad - Google Patents
System zum verspannen einer energiespeichervorrichtung in einem rahmen mit einer abdeckung und fahrradInfo
- Publication number
- EP4638252A1 EP4638252A1 EP23834032.7A EP23834032A EP4638252A1 EP 4638252 A1 EP4638252 A1 EP 4638252A1 EP 23834032 A EP23834032 A EP 23834032A EP 4638252 A1 EP4638252 A1 EP 4638252A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- storage device
- energy storage
- frame
- bicycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/10—Arrangements of batteries for propulsion
- B62J43/13—Arrangements of batteries for propulsion on rider-propelled cycles with additional electric propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/20—Arrangements of batteries characterised by the mounting
- B62J43/23—Arrangements of batteries characterised by the mounting dismounted when charging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/20—Arrangements of batteries characterised by the mounting
- B62J43/28—Arrangements of batteries characterised by the mounting hidden within the cycle frame
-
- 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 SIDECARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
-
- 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
- B62M6/80—Accessories, e.g. power sources; Arrangements thereof
- B62M6/90—Batteries
Definitions
- the present invention relates to a system for bracing an energy storage device in a frame with a cover. Furthermore, the present invention relates to a bicycle with such a system for bracing the energy storage device in the frame.
- Bicycles with an energy storage device are known from the prior art, wherein the energy storage device is arranged in the frame. Such bicycles are powered by energy from the energy storage device. There are different systems for locking the energy storage device in the frame.
- the object of the present invention is to provide an improved system for bracing an energy storage device in a frame of a bicycle. This object is achieved by the subject matter of the independent patent claims. Further advantageous embodiments emerge from the subclaims.
- the present invention relates to a first aspect of a system for bracing an energy storage device in a frame of a bicycle.
- the energy storage device can have a battery, an accumulator or another chemical or alternatively or additionally electrical energy storage device.
- the bicycle can be, for example, an electrically powered bicycle such as an (S-)Pedelec, a cargo bike, a velomobile or the like.
- the frame can have a top tube, a down tube and a seat tube.
- the frame can be designed to accommodate the energy storage device.
- the frame can have a cutout which can be arranged in at least one part of the frame, such as the down tube, the seat tube or the top tube. By providing the cutout in a part of the frame, side walls can be formed in this part of the frame.
- the down tube of the frame can have the cutout and it This creates two unsupported side walls on the long sides of the cutout.
- the system has a cover as well as the frame and the energy storage device.
- the cover can be made of plastic, aluminum or carbon, for example.
- the cover is designed to cover the cutout of the down tube of the frame.
- the cover can be designed to completely cover the cutout of the down tube, i.e. so that the cutout is closed and can form a closed cavity within the frame.
- the energy storage device can be accommodated in this cavity.
- the cover is designed to brace the energy device in the frame by covering the cutout. For example, a force from the energy storage device can act on the frame, and a counterforce of the same amount can act from the frame on the energy storage device, and this can represent the bracing.
- a user of the system of the bicycle can apply this force to brace the energy storage device in the frame.
- the user can insert the energy storage device into the recess in the frame.
- the user can then place the cover on the cutout, thereby causing the energy storage device and the frame to be clamped together.
- the spatial extent of the energy storage device can be slightly larger than the space formed by the cutout when the cover covers the cutout.
- the cover can reduce the cavity so that the space provided for the energy storage device is reduced.
- the cover can at least partially engage or penetrate the recess.
- a clamping force must be applied to completely cover the cutout when the energy storage device has been inserted into the cutout. This necessary clamping force is then stored in the clamping.
- the energy storage device can be clamped in the frame by covering the cutout.
- the system presented here allows the energy storage device to be attached and braced in the frame of the bicycle in such a way that vibrations from the frame can be transferred to the energy storage device.
- the energy storage device often a heavy battery or a heavy accumulator, can act as a slowly vibrating and inert mass.
- the bracing can be used to reduce the natural frequency of the frame by coupling the inert mass of the energy storage device to the frame.
- the unsupported side walls of the cutout in the frame can be stiffened by the bracing and additionally or alternatively supported.
- vibration energy from the frame can be converted into thermal energy, for example into thermal energy of the energy storage device or the cover.
- the presence of the system makes it possible to compensate for manufacturing tolerances of the energy storage device, the cover and the frame by bracing to compensate for slight irregularities in the geometry or dimensions of the energy storage device and alternatively or additionally of the frame.
- Vibrations can arise in a bicycle with an energy storage device, for example, when an electric motor is operated using energy from the energy storage device and generates vibrations during operation. These vibrations can, for example, lead to vibrations of the frame and, above all, to vibrations of the unsupported side walls. This can lead to unwanted vibration maxima, particularly when the frame's natural frequencies are affected by the exciting vibrations of the electric motor.
- the system described here makes it possible to prevent or at least reduce the vibrations by means of the bracing between the energy storage device and the frame, since the natural frequency of the frame is reduced between the coupling with the energy storage device.
- the vibrations can also be at least partially converted into thermal energy, which can reduce the vibration energy in the frame. This can lead to improved handling of the bicycle. Alternatively or additionally, this can lead to less material fatigue of the elements of the bicycle, for example the energy storage device, the cover or the frame, and this can lead to a longer service life of the elements of the bicycle.
- the stiffness of the cover can be manipulated and adapted to the system.
- the tension can be created in one step by placing the cover on the cutout and the cutout can be closed off and thus protected against external influences such as splash water or dirt. This provides particularly easy handling of the system and the bicycle for a bicycle user.
- the cover can be designed to establish contact between the energy storage device and the down tube.
- One contact or, alternatively, multiple contacts can be established between the energy storage device and the down tube.
- the contact can be an additional contact.
- the energy storage device in the cutout of the down tube can touch an inner wall of the cutout. This can already establish a first contact between the energy storage device and the down tube.
- a further contact can be established between the energy storage device and the down tube.
- the contact enables a direct transfer of force from the energy storage device via the cover to the down tube. A first force from the energy storage device can act on the cover, and the force can then act from the cover on the down tube.
- Such contact enables particularly efficient force and vibration transmission between the energy storage device and the down tube. This allows vibration energy from the frame to be transferred to the cover. This vibration energy transferred to the cover can be converted into heat energy, and this vibration energy can also be passed on to the energy storage device.
- the cover can have an edge which can be designed to form a connection with the down tube.
- the edge can form a connection between the down tube and the cover at least over a section extending in a longitudinal extension of the cover. This section can be shorter than the longitudinal extension of the cover.
- the edge can form a connection along the entire longitudinal extent of the cover.
- the connection can be a positive connection and alternatively or additionally a frictional connection.
- the positive connection force can be transmitted due to a positive connection in at least one direction.
- the frictional connection a frictional connection can be ensured and force transmission can be possible by selecting the materials of the connection.
- the cover can have a first material and the frame can have a further material, whereby friction coefficients between the cover and the frame can ensure the frictional connection.
- the frame can be made of carbon or aluminum and the cover can be made of plastic.
- a particularly efficient power transmission between the cover and the down tube can be provided.
- a particularly efficient power transmission between the cover and the down tube can take place along a longer line and, for example, along the entire length of the cover.
- the cover can be designed to form an undersize when connected to the down tube.
- an oversize can be formed when connected to the down tube.
- An inner surface of the cover can rest on an outer surface of the side wall on each side wall of the cutout of the frame. The distance between the inner surfaces of the cover can be smaller than the distance between the outer surfaces of the side walls. This allows the undersize of the connection to be formed.
- a force can be exerted on the cover and side walls when the cover is placed on the down tube.
- a force can be exerted from the side wall onto the cover and an equal counterforce from the cover onto the side wall.
- the cover can be braced against the side walls. This can create a particularly stable connection between the cover and the side wall. Manufacturing tolerances can also be reduced. of the cover and the down tube. The user can build up these forces when placing the cover on the down tube.
- the cover can have an inner side which can be configured to form a positive connection with the energy storage device.
- the system can be configured to form a connection between the cover and the energy storage device.
- the inner side of the cover can be shaped such that an outer side or outer shape of the energy storage device can engage at least one shape of the inner side on at least one side of the energy storage device.
- a positive shape of the energy storage device can engage in a matching negative shape of the cover.
- a positive shape of the cover can engage in a negative shape of the energy storage device.
- a positive shape can have a protruding element and a negative shape can have an exception or a notch.
- Matching positive and negative shapes can be shaped such that the positive shape can engage precisely in the negative shape. In this way, contact between the cover and the energy storage device can be established over the largest possible contact area.
- the cover can have at least one barb, which can be designed to connect the cover to the energy storage device in a force-fitting manner.
- the system can have several barbs, for example the system can have eight barbs, which can be arranged symmetrically on edges of the inside of the cover.
- the barbs can be formed as part of the cover, which can be either external parts can be arranged on the cover, for example glued.
- the barbs can be an integral part of the cover.
- the energy storage device can have a groove at least on the side facing the cover when pushed in, which can be designed to form a positive and non-positive connection with the barbs. Alternatively or additionally, no groove is provided on the energy storage device into which the barbs can engage. In this case, the barbs are tightened when the cover is placed on the cutout. This tightening of the barbs can tighten the energy storage device even better in the frame.
- a particularly efficient force-locking connection can be created between the cover and the energy storage device. This allows manufacturing tolerances of the cover, frame and energy storage device to be compensated. If necessary, a connection can always be provided between the cover and the energy storage device when the bike is riding particularly unsteadily, so that power can always be transmitted between these two elements.
- the cover can have a honeycomb structure, and a rigidity of the cover can be increased by the honeycomb structure.
- the honeycomb structure can be formed in at least a part of the inside of the cover.
- the honeycomb structure can be an integral part of the cover.
- the honeycomb structure can be arranged on the inside of the cover, for example mounted, for example with a screw, or it can be glued.
- the honeycomb structure can have several elements, such as several walls. Different walls can be arranged at different angles to each other to form the honeycomb structure. Depending on the shape of the honeycomb structure, and depending on the arrangement and number of the individual elements, for example the walls of the honeycomb structure, the rigidity of the cover can be changed.
- the position of the honeycomb structure within the inside of the cover can influence the rigidity of the cover. For example, in a first case it can be particularly advantageous to obtain a particularly rigid and stiff cover. In such a case, a different honeycomb structure can be used than in a second case if For example, a comparatively softer cover may be desired.
- the cover can have a damping layer, wherein the damping layer can be arranged at a connection.
- the damping layer can be arranged at a connection between the cover and the down tube.
- the or another damping layer can be arranged between the cover and the energy storage device.
- One damping layer can be provided, alternatively several damping layers can be provided.
- the damping layer can consist of aluminum butyl, for example. The damping layer can convert vibration energy into heat.
- a particularly high amount of vibration energy can be converted into heat energy.
- the vibration energy transferred from the frame to the cover and further to the energy storage device can thus be reduced. This can be particularly advantageous when there is a particularly high amount of vibration energy, for example when riding a mountain bike.
- the cover can be designed to be locked to the frame by means of a locking device.
- a force can be exerted on the cover by the tensioned energy storage device in the frame.
- the locking device can be provided to hold the cover in position and to contribute to the transmission of force between the energy storage device and the frame via the cover.
- a second aspect of the present invention relates to a bicycle with a system according to an embodiment of the first aspect of the present invention for bracing the energy storage device in the frame.
- the bicycle can be an e-bike, an (S-)Pedelec, an e-motorcycle, an e-scooter or an e-scooter.
- Fig. 1 shows a bicycle according to an embodiment of the invention.
- Fig. 2 shows a system of the bicycle of Fig. 1 according to an embodiment of the invention.
- Fig. 3a-3d show elements of the system shown in Fig. 2 according to one embodiment.
- Fig. 4a-4b show elements of the system shown in Fig. 2 according to one embodiment.
- Fig. 5 shows a cover of a system from Fig. 2 according to an embodiment of the invention.
- Fig. 6a-6b show a cover of a system from Fig. 2 according to an embodiment of the invention.
- Fig. 1 shows a bicycle 2 according to an embodiment of the invention.
- the bicycle 2 has a frame 4.
- the frame 4 has a down tube 6 in which a cutout 8 is provided.
- the cutout 8 points downwards onto the ground on which the bicycle 2 stands.
- the cutout 8 forms two side walls 10 which are opposite one another and are laterally arranged on the down tube 6.
- the bicycle 2 also has an energy storage device 12 which is fully inserted into the cutout 8 in Fig. 1.
- the bicycle 2 also has an electric motor 14 which is designed to drive the bicycle using energy from the energy storage device 12.
- Fig. 2 shows the frame 4, the cover 16 and the energy storage device 12 of a system according to an embodiment of the invention of a bicycle 2 from Figure 1.
- Schematically shown is an axial displacement direction R1 which is transverse to the down tube 6 and in a plane of the frame 4.
- R1 axial displacement direction
- the cover 6 is displaced along the direction R1 towards the frame 4. This is done by a user, such as a rider of the bicycle 2.
- a force builds up which the user must overcome.
- This Force represents the clamping force for clamping the energy storage device 12 in the frame 4. The force builds up between the energy storage device 12, the cover 16 and the frame 4.
- Figure 3a shows elements of the system from Figure 2. It shows a cross-section through the down tube 6, with the energy storage device 12 fully inserted into the down tube 6.
- a connection 18 will be formed between the cover 16 and the down tube 6.
- the connection 18 is not yet fully closed.
- Figure 3b the connection between cover 16 and down tube 6 is fully closed.
- Figure 3c shows a detailed view of the state when the energy storage device 12 is braced in the frame 4.
- the connection 18 between the down tube 6 and the cover 16 is formed along an edge 16b.
- an undersize 22 is formed between the down tube 6 and the cover 16.
- a connection 20 is formed between the energy storage device 12 and the cover 16.
- the connection 20 is formed by a positive connection between the energy storage device 12 and an inner side 16a of the cover 16, as shown in Fig. 4a.
- the connections 18 and 20 establish contact between the down tube 6 and the energy storage device 12 via the cover 16.
- Figure 4a shows a cover 16 of a system according to an embodiment of the invention with barbs 24.
- Six barbs 24 can be seen, which are arranged symmetrically on an inner side of the cover 16.
- the barbs are an integral part of the cover 16.
- the barbs engage in a groove (not shown) of the energy storage device 12.
- Figure 4b shows a tensioned state.
- the barbs 24 engage in the groove of the energy storage device 12.
- Figure 5 shows a honeycomb structure of the cover 16.
- the honeycomb structure 26 is an integral part of the cover 16.
- the honeycomb structure is formed on the inner side 16a of the cover 16 during the manufacturing process of the cover 16.
- the rigidity and torsional rigidity of the cover 16 are adjusted. This makes it possible to adapt the rigidity of the cover 16 to the application on the bicycle 2.
- the honeycomb structure is formed differently on a city bike than on a mountain bike.
- FIGs 6a and 6b show further embodiments of the cover 16 of a system according to an embodiment of the invention.
- the cover 16 has at least one damping layer 28.
- This damping layer 28 is, as shown in Figure 6a, applied to the cover 16 after production of the cover 16. In the embodiment shown here, this is done by gluing.
- the damping layer helps to ensure that vibrations from the electric motor 14, which are transmitted to the cover 16, are converted into thermal energy in the damping layer 28. This converted energy is no longer passed on to the energy storage device 12 as vibration energy.
- the damping layer 28 is shown in the applied state on the cover 16. Not visible is a symmetrically arranged further damping layer 28, which is arranged on the opposite side of the inner side 16a of the cover 16.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022214011.7A DE102022214011A1 (de) | 2022-12-20 | 2022-12-20 | System zum Verspannen einer Energiespeichervorrichtung in einem Rahmen mit einer Abdeckung und Fahrrad |
| PCT/EP2023/086245 WO2024133001A1 (de) | 2022-12-20 | 2023-12-18 | System zum verspannen einer energiespeichervorrichtung in einem rahmen mit einer abdeckung und fahrrad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4638252A1 true EP4638252A1 (de) | 2025-10-29 |
Family
ID=89473386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23834032.7A Pending EP4638252A1 (de) | 2022-12-20 | 2023-12-18 | System zum verspannen einer energiespeichervorrichtung in einem rahmen mit einer abdeckung und fahrrad |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4638252A1 (de) |
| DE (1) | DE102022214011A1 (de) |
| WO (1) | WO2024133001A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000238675A (ja) * | 1999-02-23 | 2000-09-05 | Yamaha Motor Co Ltd | 電動自転車 |
| CN103121486B (zh) * | 2013-01-11 | 2015-10-21 | 苏州达方电子有限公司 | 电动自行车 |
| CN105705408A (zh) * | 2013-11-06 | 2016-06-22 | 雅马哈发动机株式会社 | 骑乘式电动车 |
| DE202017000144U1 (de) * | 2017-01-11 | 2017-02-23 | Weidner & Heimerdinger GbR (vertretungsberechtigter Gesellschafter: Andreas Heimerdinger, 22605 Hamburg) | Formschlüssig verschließbares Unterrohr zur Unterbringung eines internen Akkus (bzw. der internen Batterie) bei einem Elektro-Motor betriebenen Fahrrad-verschließbares Batterie-Fach |
| DE202017105339U1 (de) * | 2017-07-12 | 2017-09-21 | Iko Sportartikel-Handels Gmbh | Fahrradrahmen und ein Fahrrad mit einem solchen Fahrradrahmen |
| CN209037762U (zh) * | 2018-11-07 | 2019-06-28 | 天成车料(深圳)有限公司 | 一种电动自行车下管盖子 |
| DE102019204572B3 (de) | 2019-04-01 | 2020-08-06 | Brose Antriebstechnik GmbH & Co. Kommanditgesellschaft, Berlin | Verriegelungseinrichtung zur Verriegelung einer Energieversorgungseinheit für ein Fahrrad |
| TWI709507B (zh) * | 2019-06-19 | 2020-11-11 | 巨大機械工業股份有限公司 | 車架罩體結構 |
-
2022
- 2022-12-20 DE DE102022214011.7A patent/DE102022214011A1/de active Pending
-
2023
- 2023-12-18 WO PCT/EP2023/086245 patent/WO2024133001A1/de not_active Ceased
- 2023-12-18 EP EP23834032.7A patent/EP4638252A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024133001A1 (de) | 2024-06-27 |
| DE102022214011A1 (de) | 2024-06-20 |
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