Battery mechanism for a cycling device, drive mechanism and cycling device

Abstract

The utility model discloses a kind of battery mechanism of cycling equipment, driving mechanism and cycling equipment, it is related to battery technology field.The battery mechanism of cycling equipment, including battery assembly and control assembly, battery assembly includes first shell and the electric core being arranged in the inside of first shell, control assembly includes second shell and the first circuit board and second circuit board being stacked along axial direction in the inside of second shell, communication module is equipped on the first circuit board, MOS module is equipped on the second circuit board.The first shell is detachably connected along axial direction with the second shell, the control upper shell of plastic article and the control lower shell of metal article are included in the second shell along axial direction, control upper shell connects battery lower shell, communication module on the first circuit board is arranged in the inside of control upper shell, MOS module on the second circuit board is arranged in the inside of control lower shell.The battery mechanism of the utility model can improve the integrated degree of internal device.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery mechanism, a drive mechanism, and a cycling device. Background Technology

[0002] With the development of technology, new energy cycling equipment has become one of the essential choices for public travel, and the driving force of cycling equipment is inseparable from the battery mechanism.

[0003] Current battery structures generally consist of battery modules and control modules. The circuit boards corresponding to the battery modules and control modules are integrated into their respective housings, which are far apart. This results in excessive wire output when achieving control connection, and the integration level is low. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a battery mechanism, a drive mechanism and a cycling device for cycling equipment, which can improve the integration level of internal components.

[0005] This utility model is achieved through the following technical solution:

[0006] In a first aspect, this utility model provides a battery mechanism for a cycling device, including a battery assembly and a control assembly. The battery assembly includes a first housing and battery cells disposed inside the first housing. The control assembly includes a second housing and a first circuit board and a second circuit board stacked axially inside the second housing. The first circuit board is provided with a communication module, and the second circuit board is provided with a MOS module.

[0007] The first housing and the second housing are detachably connected along the axial direction. The second housing includes a plastic upper control housing and a metal lower control housing along the axial direction. The upper control housing is connected to the lower battery housing.

[0008] The communication module on the first circuit board is located inside the upper control housing, and the MOS module on the second circuit board is located inside the lower control housing.

[0009] Optionally, the first housing includes an upper battery housing and a lower battery housing along the axial direction.

[0010] The lower battery casing is connected to the second casing.

[0011] The upper casing of the battery is equipped with a BMS protection board, and the lower casing of the battery is equipped with the battery cell.

[0012] Optionally, the battery casing is also provided with an indicator button and a charging port.

[0013] Optionally, the lower casing of the battery is further provided with a cell support along the axial direction, and the cell is disposed on the cell support.

[0014] Optionally, the battery cell is connected to the signal terminals on the first circuit board via signal terminals extended along the axial direction.

[0015] Optionally, the battery cell is connected to a power terminal on the second circuit board via a power terminal extended axially.

[0016] Optionally, the battery cell is communicatively connected to the first circuit board, and the battery cell is electrically connected to the second circuit board. The first circuit board and the second circuit board are electrically connected and communicatively connected through a pin assembly.

[0017] Optionally, the pin assembly includes a pin terminal on the first circuit board and a plurality of pins on the second circuit board. The plurality of pins extend in an axial direction and are inserted into the pin terminal in an axial direction during the docking of the first circuit board and the second circuit board to limit the radial displacement of the first circuit board relative to the second circuit board.

[0018] Optionally, there are at least two pin assemblies, which are radially spaced to limit the circumferential displacement of the first circuit board relative to the second circuit board.

[0019] Optionally, the first circuit board and the second circuit board have corresponding first and second connection holes formed on their outer peripheries, respectively.

[0020] A floating copper layer is formed on the surface of the second circuit board near the first circuit board. A hollow copper pillar is welded to the floating copper layer at the position corresponding to the second connection hole. The interior of the hollow copper pillar is axially connected to the first connection hole and the second connection hole. A stud passes through the first connection hole, the hollow copper pillar and the second connection hole to connect the first circuit board and the second circuit board.

[0021] Optionally, the communication module includes a Bluetooth module and a virtual instrument module.

[0022] The Bluetooth module is axially disposed inside the control housing, and its axial extension length falls within the axial length of the control housing.

[0023] Optionally, the control component further includes an output terminal, which is disposed on the lower control housing.

[0024] The signal terminal of the output end is connected to the signal terminal on the first circuit board, and the power terminal of the output end is connected to the power terminal on the second circuit board.

[0025] Optionally, the output terminal includes a pluggable male cable and a female cable. The male cable is mounted on the lower control housing and has a Type-C interface and a power interface inside. One end of the Type-C interface and the power interface are respectively connected to the signal terminal on the first circuit board and the power terminal on the second circuit board. The other end of the Type-C interface and the power interface are plugged into the end of the female cable.

[0026] Optionally, a protrusion is formed on one side of the inner side of the control lower housing, and a mounting cavity is formed inside the protrusion to mount the output terminal, the output terminal penetrating through the inner and outer sides of the control lower housing.

[0027] Optionally, the interior of the lower control housing has a receiving cavity formed on the side opposite to the protrusion, the receiving cavity being used to receive the second circuit board.

[0028] Optionally, the bottom of the accommodating cavity is formed with protruding heat dissipation ribs, and the second circuit board is at least partially attached to the heat dissipation ribs.

[0029] Optionally, the number of heat dissipation ribs is provided in multiple ways, and the end face and side wall shape of the multiple heat dissipation ribs facing the second circuit board are adapted to the components on the second circuit board.

[0030] Optionally, a groove is formed on the outer bottom surface of the control housing corresponding to the mounting position of the output terminal, and the male terminal wire of the output terminal is disposed inside the groove. The port of the male terminal wire is lower than the outer bottom surface of the control housing in the axial direction, or is flush with the outer bottom surface of the control housing.

[0031] Optionally, the male end wire is provided with a buckle portion, and a slope is formed on one side of the inside of the groove, with the buckle portion located outside the inner end of the slope.

[0032] Optionally, a plurality of recessed heat dissipation portions are formed on the outer bottom surface of the control housing in the area surrounding the groove.

[0033] Secondly, this utility model provides a drive mechanism for a cycling device, including a battery mechanism and a drive motor for a cycling device as described in any of the embodiments of the first aspect above.

[0034] Optionally, the vehicle also includes a frame, wherein the drive motor is located at the bottom bracket or rear fork of the frame.

[0035] Optionally, the battery mechanism is located at the riser or downtube of the vehicle frame;

[0036] The battery assembly is electrically connected to the drive motor to supply power to the drive motor;

[0037] The battery assembly is signal-connected to the drive motor to control the output power of the drive motor.

[0038] Thirdly, this utility model provides a cycling device, including the drive mechanism and controller described in the second aspect embodiment above.

[0039] Optionally, the controller is connected to the battery mechanism via Bluetooth.

[0040] Optionally, the controller includes a mobile phone, tablet, and wearable device for real-time monitoring, display, and adjustment of operating parameters.

[0041] Compared with existing technologies, the advantages of this utility model are:

[0042] 1. The battery mechanism for the cycling device of this utility model stacks a first circuit board and a second circuit board along its axial direction inside the housing of the control component. This integrates the first circuit board with signal exchange function and the second circuit board with battery management function inside the control component, effectively reducing the amount of wire output between the first circuit board and the second circuit board, resulting in high integration and low production cost.

[0043] 2. In the battery mechanism of the cycling device of this utility model, the first circuit board and the second circuit board are connected by a pin assembly. While realizing communication and conductive connection, it can also initially ensure the relative positional relationship between the first circuit board and the second circuit board, which is conducive to installation in the compact space of the housing.

[0044] 3. In the battery mechanism of the cycling device of this utility model, when the first circuit board and the second circuit board are connected by studs, hollow copper pillars are also welded at the corresponding connection holes of the studs. The hollow copper pillars are placed between the first circuit board and the second circuit board, and the studs pass through the hollow copper pillars to realize the installation between the two. This can effectively avoid the problem of positional deviation between the first circuit board and the second circuit board in the axial and radial directions caused by different tightening degrees and force directions, and further ensure the accuracy of the relative position between the first circuit board and the second circuit board. Attached Figure Description

[0045] Figure 1 An exploded view of the battery mechanism for a cycling device according to an embodiment of this utility model;

[0046] Figure 2 This is an exploded view of the control components in the battery mechanism of the cycling device according to an embodiment of the present invention.

[0047] Figure 3 This is an assembly diagram of the first and second circuit boards according to an embodiment of the present utility model;

[0048] Figure 4 This is a schematic diagram of the control lower shell in the control assembly of this utility model embodiment;

[0049] Figure 5 This is another structural schematic diagram of the control lower shell in the control assembly of this utility model embodiment;

[0050] Figure 6 This is a schematic diagram of the drive mechanism for a cycling device according to an embodiment of the present invention;

[0051] Figure 7 This is a schematic diagram of the drive mechanism for a cycling device according to another embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the screen display of the controller in the cycling device according to an embodiment of the present invention.

[0053] Reference numerals: 100, Battery assembly; 110, First housing; 111, Upper battery housing; 112, Lower battery housing; 113, Indicator button; 120, Cell support; 130, Cell signal terminal; 140, Cell power terminal; 200, Control assembly; 210, Second housing; 211, Upper control housing; 212, Lower control housing; 2121, Protrusion; 2122, Receiving cavity; 2123, Heat dissipation fins; 2124, Recess 2125. Slot; 2126. Bevel; 2127. Heat dissipation section; 2128. Mounting hole; 220. First circuit board; 221. Bluetooth module; 222. Virtual instrument module; 230. Second circuit board; 240. Pin assembly; 250. Hollow copper pillar; 260. Stud; 300. Output terminal; 310. Male wire; 320. Female wire; 330. Type-C interface; 340. Power interface; 400. Locking screw;

[0054] 10. Frame; 11. Bottom bracket; 12. Rear fork; 13. Stem tube; 14. Down tube; 20. Battery mechanism. Detailed Implementation

[0055] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, further illustrates the invention. In this description, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying any specific action. Figures 1 to 5This invention provides a detailed description of the battery mechanism used in a cycling device.

[0056] like Figure 1 and Figure 2 As shown, this utility model provides a battery mechanism for a cycling device, which may include a battery assembly 100 and a control assembly 200.

[0057] The battery assembly 100 may include a first housing 110 and battery cells (not shown) disposed inside the first housing 110. As an example, the first housing 110 has an axially arranged cell support 120, on which the battery cells are mounted, thereby securing the cells within the first housing 110 stably and reliably, and facilitating replacement and maintenance. The battery cells, as power supply components, provide power to the connected components and also have charging and discharging functions themselves.

[0058] The control component 200 may include a second housing 210 and a first circuit board 220 and a second circuit board 230 stacked axially inside the second housing 210. The first circuit board 220 is provided with a communication module for receiving control signals transmitted from an external control terminal; for example, the communication module may be a Bluetooth module, which transmits control signals (e.g., acceleration or deceleration signals) to the Bluetooth module through an external Bluetooth control terminal (e.g., a Bluetooth button), and similarly, can also transmit signals to an external control terminal.

[0059] The second circuit board 230 is equipped with a MOS module. The MOS module serves to control charging and discharging, manage battery balancing, provide temperature and safety protection, and optimize energy conversion and efficiency. Specifically, during the charging and discharging of the battery assembly 100, the MOS module precisely adjusts the gate voltage to quickly cut off or open the charging and discharging circuit, preventing damage to the battery assembly 100 from abnormal states such as overcharging or over-discharging. For example, when the battery assembly 100 is close to full charge, the MOS transistor immediately shuts off the charging circuit; when the charge is too low, it blocks the discharging circuit to prevent the battery from being "overdrawn." Regarding battery balancing management, to address the voltage differences between individual cells in the battery assembly 100, the MOS transistor dynamically adjusts the current distribution to achieve "peak shaving and valley filling," transferring power from high-voltage cells to low-voltage cells, extending the overall lifespan of the battery assembly 100 by more than 20%. In terms of temperature and safety protection, the MOS transistor with an integrated temperature sensor can monitor the junction temperature in real time and automatically cut off the circuit when the temperature exceeds a preset threshold, avoiding safety hazards caused by overheating. For example, cycling equipment uses thermal management strategies to control the motor controller temperature within a safe range. In terms of energy conversion and efficiency optimization, in fast-charging scenarios for cycling devices, for example, MOSFETs using SGT technology can improve charging efficiency to 97%, while silicon carbide (SiC) MOSFETs can shorten charging time to 15 minutes. In motor-driven scenarios, high-frequency switching reduces power consumption by 5%.

[0060] The first housing 110 and the second housing 210 are detachably connected axially, making maintenance of the internal components of the battery mechanism more convenient and reducing operational complexity. The battery cell is communicatively connected to the first circuit board 220; for example, the battery cell can communicate with the first circuit board 220 via signal terminals for signal exchange. The battery cell is electrically connected to the second circuit board 230; for example, the battery cell can be electrically connected to the second circuit board 230 via power terminals to achieve power transmission. The electrical and communicative connections between the first circuit board 220 and the second circuit board 230 are illustrated in the example. Figure 3 As shown, a pin assembly 240 can be provided between the first circuit board 220 and the second circuit board 230. The pin assembly 240 enables electrical and communication connections between the two boards, thereby facilitating signal exchange and power transmission between them and reducing the amount of wiring required. The pin assembly 240 includes pin terminals on the first circuit board 220 and multiple pins on the second circuit board 230. All pins extend axially, and during the docking process between the first and second circuit boards 220 and 230, the multiple pins are inserted axially into the pin terminals. Preferably, in this embodiment, two pin assemblies 240 are provided, and the two pin assemblies 240 are radially spaced apart. The pin assembly 240 can initially ensure the accuracy of the relative position between the first circuit board 220 and the second circuit board 230. Specifically, after the pin and pin terminal are inserted, the radial and circumferential displacement of the first circuit board 220 relative to the second circuit board 230 are restricted, which also facilitates precise locking into the installation space inside the second housing 210.

[0061] Specifically, in the battery mechanism of the cycling device of this utility model, a first circuit board 220 and a second circuit board 230 are stacked along the axial direction inside the housing (i.e., the second housing 210) of the control component 200. This allows the first circuit board 220, which has signal exchange function, and the second circuit board 230, which has battery management function, to be integrated inside the control component 200, effectively reducing the amount of wire output between the first circuit board 220 and the second circuit board 230, resulting in high integration and low production cost.

[0062] In some embodiments, such as Figure 1As shown, the first housing 110 may include an upper battery housing 111 and a lower battery housing 112 along the axial direction. The lower battery housing 112 is connected to the second housing 210. The upper battery housing 111 houses a BMS protection board, and the lower battery housing 112 houses a battery cell. Specifically, the first housing 110 may be configured to have an axially detachable upper battery housing 111 and a lower battery housing 112, with the BMS protection board and battery cell respectively housed inside the upper battery housing 111 and the lower battery housing 112, facilitating disassembly and maintenance. The BMS protection board is used for real-time monitoring and intelligent control of the battery cell, ensuring its safe operation and extending its service life. The battery cell provides power support to the BMS protection board.

[0063] In some embodiments, such as Figure 1 As shown, the battery casing 111 also has an indicator button 113 and a charging port (not shown). The indicator button 113 is used to display the battery cell's charge level. For example, pressing the indicator button 113 once will display the following: if four indicator lights are lit, it indicates a full charge; if three indicator lights are lit, it indicates 80%–100% charge; if two indicator lights are lit, it indicates 50%–80% charge; if one indicator light is lit, it indicates 20%–50% charge; and if none of the indicator lights are lit, it indicates less than 20% charge. If the charge level is less than 20%, one indicator light will flash three times to indicate charging. If all indicator lights are flashing, it indicates a battery malfunction. Alternatively, in another embodiment, the charge level can be determined by observing the color of the indicator lights. The charging port can be, for example, a 3-pin charging port for connecting an external power source to charge the battery cell.

[0064] In some embodiments, the battery cell is connected to signal terminals on the first circuit board 220 via signal terminals extended axially. For example, such as... Figure 1 and Figure 2 As shown, the interior of the first housing 110 is provided with a plurality of cell signal terminals 130 along the axial direction, all of which are led out from the cells. The plurality of cell signal terminals 130 are connected to signal terminals (not shown) on the first circuit board 220. The cell signal terminals 130 are made of highly conductive materials (e.g., copper alloy) and are used to transmit control commands and data information between the BMS protection board and the high-voltage circuit (i.e., the first circuit board 220).

[0065] In some embodiments, the battery cell is connected to a power terminal on the second circuit board 230 via a power terminal extended axially. As an example, such as... Figure 1 and Figure 2 As shown, a battery cell power terminal 140 is provided axially inside the first housing 110, which is led out from the battery cell. The battery cell power terminal 140 is connected to a power terminal (not shown) on the second circuit board 230 to realize the conductivity function.

[0066] Before installing the first circuit board 220 and the second circuit board 230 into the second housing 210, the first circuit board 220 and the second circuit board 230 need to be fixed relative to each other. The pin assembly 240 described above has already limited the relative displacement of the first circuit board 220 and the second circuit board 230 in the axial and radial directions. The following embodiments further limit the relative displacement of the first circuit board 220 and the second circuit board 230 in the axial direction. Specifically, in some embodiments, such as... Figure 3 As shown, a first connecting hole (not shown) and a second connecting hole (not shown) are respectively formed at corresponding locations on the outer periphery of the first circuit board 220 and the second circuit board 230. A floating copper layer (not shown) is formed on the surface of the second circuit board 230 near the first circuit board 220. A hollow copper pillar 250 is soldered to the floating copper layer at the position corresponding to the second connecting hole. The interior of the hollow copper pillar 250 is axially connected to the first connecting hole and the second connecting hole. A stud 260 passes through the first connecting hole, the hollow copper pillar 250, and the second connecting hole to connect the first circuit board 220 and the second circuit board 230, thereby realizing the mutual locking action of the first circuit board 220 and the second circuit board 230.

[0067] Specifically, a first connecting hole and a second connecting hole are respectively opened at corresponding locations on the outer periphery of the first circuit board 220 and the second circuit board 230 to fix them together with studs 260. To further prevent positional deviations in the axial and radial directions between the first circuit board 220 and the second circuit board 230 due to differences in the tightness and direction of force applied by the studs 260, in this embodiment, a hollow copper pillar 250 is welded to the surface of the floating copper layer on the side of the second circuit board 230 closest to the first circuit board 220. The hollow part inside the hollow copper pillar 250 communicates with the first connecting hole and the second connecting hole, and their respective central axes coincide. Thus, the studs 260 pass through the hollow copper pillars 250 to connect the first circuit board 220 and the second circuit board 230, which can effectively avoid positional deviations in the axial and radial directions between the first circuit board 220 and the second circuit board 230 due to differences in the tightness and direction of force applied, and further ensure the accuracy of the relative position between the first circuit board 220 and the second circuit board 230.

[0068] It should be noted that the surface of the second circuit board 230 has a floating copper layer for mounting electrical components. Placing the hollow copper pillar 250 on this floating copper layer allows for compatible soldering of the same material, resulting in a stable and good connection without the need for additional processes. It is worth noting that copper is used here not only to maintain good compatibility for soldering but also because copper's hardness meets the requirements. Of course, other materials can be adapted to meet the soldering and hardness requirements of this embodiment.

[0069] In some embodiments, such as Figure 1and Figure 2 As shown, the second housing 210 includes a plastic upper control housing 211 and a metal lower control housing 212 along the axial direction. The upper control housing 211 is connected to the lower battery housing 112. A first circuit board 220 is located inside the upper control housing 211, and a second circuit board 230 is located inside the lower control housing 212. Specifically, since the first circuit board 220 is equipped with a communication module, placing the first circuit board 220 inside the plastic upper control housing 211 is advantageous because the plastic material has minimal interference with signal transmission, facilitating signal transmission. Furthermore, the plastic upper control housing 211 is less prone to corrosion, resulting in lower material costs. On the other hand, since the second circuit board 230 is equipped with a MOS module, the power devices in the MOS module generate significant heat during operation. Metal has good thermal conductivity, and placing the second circuit board 230 inside the metal lower control housing 212 provides excellent heat dissipation.

[0070] In some embodiments, such as Figure 2 As shown, the communication module may include a Bluetooth module 221 and a virtual instrument module 222. The Bluetooth module 221 is axially disposed inside the control housing 211, and its axial extension length falls within the axial length of the control housing 211.

[0071] Specifically, Bluetooth module 221 is used to realize wireless communication and data transmission between devices. Bluetooth module 221 can adopt BLE (Bluetooth Low Energy) technology, with extremely low standby power consumption, reducing the consumption of the battery pack's own energy, and is suitable for devices that need to operate for a long time. Compared with traditional wired communication, Bluetooth module 221 supports wireless connection, simplifying the deployment process and reducing physical wiring costs. It should be noted that the length of Bluetooth module 221 falls entirely within the length of control housing 211 along the axial direction. On the one hand, this meets the installation space requirements, and on the other hand, it ensures the signal transmission quality of Bluetooth module 221. That is, the signal of Bluetooth module 221 is transmitted through the plastic control housing 211, with minimal interference.

[0072] The virtual instrument module 222 can dynamically display key parameters such as battery voltage, current, and temperature, allowing users to receive and observe data changes in real time directly on the terminal interface.

[0073] In some embodiments, the control component 200 further includes an output terminal 300, which is disposed on the control lower housing 112. The signal terminal of the output terminal 300 is connected to the signal terminal on the first circuit board 220, and the power terminal of the output terminal 300 is connected to the power terminal on the second circuit board 230. As an example, such as Figure 2 , Figure 4 as well as Figure 5As shown, the output terminal 300 may include a pluggable male cable 310 and a female cable 320. The male cable 310 is mounted on the lower control housing 112. The male cable 310 has a Type-C interface 330 and a power interface 340 inside. The Type-C interface 330 and the power interface 340 are located at one end inside the lower control housing 112 (e.g., Figure 2 , Figure 4 The two parts are respectively connected to the signal terminals on the first circuit board 220 and the power terminals on the second circuit board 230 to realize signal interaction and power transmission. The other end (i.e., the male end) of the Type-C interface 330 and the power interface 340 is plugged into the end of the female cable 320 for signal and power output.

[0074] It is worth noting that the signal terminal input and output on the first circuit board 220 has multiple wires. The Type-C interface 330 can integrate the multiple output wires, that is, one output interface can output multiple signals, which effectively reduces the number of wires output by the first circuit board 220 and the second circuit board 230. It has a high degree of integration, low production cost, and facilitates subsequent testing and maintenance.

[0075] In some embodiments, such as Figure 4 and Figure 5 As shown, a protrusion 2121 is formed on one side of the interior of the lower control housing 212. A mounting cavity is formed inside the protrusion 2121 to mount the output terminal 300. The output terminal 300 penetrates both the interior and exterior of the lower control housing 212. In other words, the protrusion 2121 on the bottom surface inside the lower control housing 212 has sufficient axial mounting thickness to create mounting space for the male terminal wire 310 of the output terminal 300, thereby ensuring reliable installation.

[0076] In some embodiments, such as Figure 4 As shown, a receiving cavity 2122 is formed on the other side of the protrusion 2121 inside the control lower housing 212. The receiving cavity 2122 is used to receive the second circuit board 230. That is, the side wall of the protrusion 2121 inside the control lower housing 212 and the inner side wall of the control lower housing 212 form the receiving cavity 2122, thereby embedding the second circuit board 230 in the receiving cavity 2122 in a compact and secure manner.

[0077] In some embodiments, such as Figure 4As shown, protruding heat dissipation ribs 2123 are formed at the bottom of the accommodating cavity 2122. Therefore, when the second circuit board 230 is installed inside the accommodating cavity 2122, the second circuit board 230 adheres to the heat dissipation ribs 2123, further improving the heat dissipation efficiency of the second circuit board 230. Preferably, multiple heat dissipation ribs 2123 are provided, and the end faces and sidewall shapes of the multiple heat dissipation ribs 2123 facing the second circuit board 230 are adapted to the components on the second circuit board 230. The main purpose is to maximize heat dissipation of the second circuit board 230 through heat transfer.

[0078] In some embodiments, such as Figure 5 As shown, the outer bottom surface of the control lower housing 212 has multiple recessed heat dissipation portions 2126. As an example, the outer bottom surface of the control lower housing 212 has multiple recessed circular grooves (i.e., heat dissipation portions 2126), which increases the contact area with air compared to a flat outer bottom surface. Considering the application environment, i.e., during the movement of the cycling device, this increased contact area with airflow allows for better heat dissipation of the components inside the control lower housing 212. It should be noted that the heat dissipation portions 2126 in this embodiment can be not only grooves, but also blind holes, etc., and are not specifically limited here.

[0079] In some embodiments, such as Figure 5 As shown, a groove 2124 is formed on the outer bottom surface of the control lower housing 212 corresponding to the mounting position of the output terminal 300, and a slope 2125 is formed on one side inside the groove 2124. Specifically, the male terminal wire 310 of the output terminal 300 is located inside the groove 2124, and the port of the male terminal wire 310 is either lower than or flush with the outer bottom surface of the control lower housing 212 (i.e., the opening of the groove 2124) in the axial direction, thereby effectively protecting the male terminal wire 310. In addition, since the male terminal wire 310 and the female terminal wire 320 adopt a snap-fit ​​connection, the slope 2125 formed on one side inside the groove 2124 is ergonomic, allowing the operator to easily insert their fingers through the slope 2125 to the snap-fit ​​position at the bottom of the groove 2124 to release the snap-fit ​​(i.e., separate the ports of the male terminal wire 310 and the female terminal wire 320).

[0080] In some embodiments, such as Figure 2 and Figure 5 As shown, multiple mounting holes 2127 are also provided axially on the bottom surface of the lower housing 212, and locking bolts 400 are inserted into the mounting holes 2127. Thus, after the first housing 110 and the second housing 210 are connected, the locking bolts 400 are placed in the mounting holes 2127, and the first housing 110 and the second housing 210 are connected axially to fix the battery mechanism housing.

[0081] Secondly, this utility model also provides a drive mechanism for cycling equipment, including the battery mechanism and drive motor for cycling equipment described in any of the above embodiments.

[0082] In some embodiments, such as Figure 6 As shown, the drive mechanism may also include a frame 10, with a drive motor (not shown) located at the bottom bracket 11 or the rear fork 12 of the frame 10.

[0083] In other words, the drive motor of the present invention can be selectively located at the bottom bracket 11 or the rear fork 12 of the frame 10, depending on specific production needs. Specifically, the drive motor is located on the rear fork 12, and is mounted at the wheel hub, serving as a hub motor.

[0084] In some embodiments, such as Figure 6 and Figure 7 As shown, the battery mechanism 20 can be located at the riser tube 13 or the downtube 14 of the frame 10. The battery mechanism 20 is electrically connected to the drive motor to supply power to the drive motor. The battery mechanism 20 is also signal connected to the drive motor to control the output power of the drive motor.

[0085] Finally, this utility model provides a cycling device, including the drive mechanism and controller described in the above embodiments.

[0086] In some embodiments, the controller is connected to the battery mechanism via Bluetooth to interact with the battery mechanism. Specifically, it sends Bluetooth signals to the battery mechanism to control the drive motor and ultimately achieve the riding purpose of the cycling device.

[0087] In some embodiments, the controller may include a mobile phone, tablet, wearable device, etc., for real-time monitoring, display, and adjustment of operating parameters. As an example, such as... Figure 8 As shown, the controller's display screen shows the real-time battery level information, i.e., 100% fully charged; the real-time riding speed, i.e., 30km / h; as well as riding power, motor power, cadence, riding distance, riding time, remaining riding distance, and assist level (TOUR, CLIMB, and SPORT), etc.

[0088] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A battery mechanism for a cycling device, comprising a battery assembly (100) and a control assembly (200), characterized in that, The battery assembly (100) includes a first housing (110) and battery cells disposed inside the first housing (110). The control assembly (200) includes a second housing (210) and a first circuit board (220) and a second circuit board (230) stacked axially inside the second housing (210). The first circuit board (220) is provided with a communication module, and the second circuit board (230) is provided with a MOS module. The first housing (110) and the second housing (210) are detachably connected along the axial direction. The second housing (210) includes a plastic upper control housing (211) and a metal lower control housing (212) along the axial direction. The upper control housing (211) is connected to the lower battery housing (112). The communication module on the first circuit board (220) is located inside the upper control shell (211), and the MOS module on the second circuit board (230) is located inside the lower control shell (212).

2. The battery mechanism for a cycling device according to claim 1, characterized in that, The first housing (110) includes an upper battery housing (111) and a lower battery housing (112) along the axial direction. The lower battery casing (112) is connected to the second casing (210). The upper battery casing (111) contains a BMS protection board, and the lower battery casing (112) contains the battery cell.

3. The battery mechanism for a cycling device according to claim 2, characterized in that, The battery casing (111) is also equipped with an indicator button (113) and a charging port.

4. The battery mechanism for a cycling device according to claim 2, characterized in that, The battery lower casing (112) is further provided with a cell support (120) along the axial direction inside, and the cell is disposed on the cell support (120).

5. The battery mechanism for a cycling device according to any one of claims 1 to 4, characterized in that, The battery cell is connected to the signal terminals on the first circuit board (220) via signal terminals extended along the axial direction.

6. The battery mechanism for a cycling device according to any one of claims 1 to 4, characterized in that, The battery cell is connected to the power terminals on the second circuit board (230) via power terminals extended along the axial direction.

7. The battery mechanism for a cycling device according to any one of claims 1 to 4, characterized in that, The battery cell is communicatively connected to the first circuit board (220) and electrically connected to the second circuit board (230). The first circuit board (220) and the second circuit board (230) are electrically connected and communicatively connected through a pin assembly (240).

8. The battery mechanism for a cycling device according to claim 7, characterized in that, The pin assembly (240) includes a pin terminal on the first circuit board (220) and a plurality of pins on the second circuit board (230). The plurality of pins extend in the axial direction and are inserted into the pin terminal in the axial direction during the docking process of the first circuit board (220) and the second circuit board (230) to limit the radial displacement of the first circuit board (220) relative to the second circuit board (230).

9. The battery mechanism for a cycling device according to claim 7, characterized in that, The number of the pin assemblies (240) is at least two, and the two pin assemblies (240) are arranged radially spaced to limit the circumferential displacement of the first circuit board (220) relative to the second circuit board (230).

10. The battery mechanism for a cycling device according to claim 7, characterized in that, The first circuit board (220) and the second circuit board (230) have corresponding first connecting holes and second connecting holes formed on their outer peripheries, respectively. A floating copper layer is formed on the side surface of the second circuit board (230) near the first circuit board (220). A hollow copper pillar (250) is welded to the floating copper layer at the position corresponding to the second connection hole. The hollow copper pillar (250) is axially connected to the first connection hole and the second connection hole. A stud (260) passes through the first connection hole, the hollow copper pillar (250) and the second connection hole to connect the first circuit board (220) and the second circuit board (230).

11. The battery mechanism for a cycling device according to claim 1, characterized in that, The communication module includes a Bluetooth module (221) and a virtual instrument module (222). The Bluetooth module (221) is disposed axially inside the control housing (211), and its axial extension length falls within the axial length of the control housing (211).

12. The battery mechanism for a cycling device according to claim 1, characterized in that, The control component (200) further includes an output terminal (300), which is disposed on the lower control housing (212). The signal terminal of the output terminal (300) is connected to the signal terminal on the first circuit board (220), and the power terminal of the output terminal (300) is connected to the power terminal on the second circuit board (230). The signal terminals of the output terminal (300) include a Type-C interface (330).

13. The battery mechanism for a cycling device according to claim 12, characterized in that, The output terminal includes a pluggable male cable (310) and a female cable (320). The male cable (310) is mounted on the control lower housing (112). The male cable (310) is provided with a Type-C interface (330) and a power interface (340). One end of the Type-C interface (330) and the power interface (340) are respectively connected to the signal terminal on the first circuit board (220) and the power terminal on the second circuit board (230). The other end of the Type-C interface (330) and the power interface (340) are plugged into the end of the female cable (320).

14. The battery mechanism for a cycling device according to claim 12, characterized in that, A protrusion (2121) is formed on one side of the inner side of the control lower housing (212), and a mounting cavity is formed inside the protrusion (2121) to mount the output terminal (300). The output terminal (300) penetrates the interior and exterior of the control lower housing (212).

15. The battery mechanism for a cycling device according to claim 14, characterized in that, The control housing (212) has an accommodating cavity (2122) formed on the side opposite to the protrusion (2121) inside, the accommodating cavity (2122) being used to accommodate the second circuit board (230).

16. The battery mechanism for a cycling device according to claim 15, characterized in that, The bottom of the accommodating cavity (2122) has protruding heat dissipation ribs (2123), and the second circuit board (230) is at least partially attached to the heat dissipation ribs (2123).

17. The battery mechanism for a cycling device according to claim 16, characterized in that, The number of heat dissipation ribs (2123) is set to multiple, and the end face and side wall shape of the multiple heat dissipation ribs (2123) facing the second circuit board (230) are adapted to the components on the second circuit board (230).

18. The battery mechanism for a cycling device according to claim 13, characterized in that, A groove (2124) is formed on the outer bottom surface of the control lower housing (212) corresponding to the installation position of the output terminal (300). The male end wire (310) of the output terminal (300) is located inside the groove (2124). The port of the male end wire (310) is lower than the outer bottom surface of the control lower housing (212) in the axial direction, or is flush with the outer bottom surface of the control lower housing (212).

19. The battery mechanism for a cycling device according to claim 18, characterized in that, The male end wire (310) is provided with a buckle part, and a slope (2125) is formed on one side inside the groove (2124). The buckle part is located outside the inner end of the slope (2125).

20. The battery mechanism for a cycling device according to claim 18, characterized in that, On the outer bottom surface of the control housing (212), a plurality of recessed heat dissipation parts (2126) are formed in the area surrounding the groove (2124).

21. A drive mechanism for a cycling device, characterized in that, Includes a battery mechanism and a drive motor for a cycling device as described in any one of claims 1-20.

22. The drive mechanism for a cycling device according to claim 21, characterized in that, Also includes the chassis, The drive motor is located at the center axle or rear fork of the frame.

23. The drive mechanism for a cycling device according to claim 22, characterized in that, The battery mechanism is located on the riser or downtube of the vehicle frame; The battery assembly is electrically connected to the drive motor to supply power to the drive motor; The battery assembly is signal-connected to the drive motor to control the output power of the drive motor.

24. A cycling device, characterized in that, Includes the drive mechanism and controller as described in any one of claims 21-23.

25. The cycling device according to claim 24, characterized in that, The controller is connected to the battery mechanism via Bluetooth.

26. The cycling device according to claim 24, characterized in that, The controller includes mobile phones, tablets, and wearable devices, used to monitor, display, and adjust operating parameters in real time.

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