Battery integrated system for battery-replaceable electric bicycle

Abstract

The utility model relates to a kind of battery integrated system of battery exchange type electric bicycle, including battery lower pipe, frame head pipe, battery box and base combination;Battery lower pipe is fixedly connected with base combination inside, battery box is locked on base combination, battery lower pipe is welded frame head pipe.The beneficial effects of the utility model are: battery lower pipe simple structure;Iron battery lower pipe can be adapted to the volume larger, density lower but safety more optimal lithium iron phosphate battery cell;Battery box cover plate four edges completely cover lower pipe opening sink, hide spliced gap, reduce the requirement to the machining precision of lower pipe;BMS module can be repaired and replaced;Battery box cover plate of aluminium alloy material and iron lower pipe form double protection, can effectively resist the risk of battery theft;Multiple waterproof pad makes waterproof grade satisfy the demand of riding in rain outdoors, using electronic lock to lock battery box, while retaining battery lock tail part physical lock pull ring, with reliability.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric bicycles with built-in batteries that support battery swapping, and particularly relates to an integrated battery system for battery swapping electric bicycles. Background Technology

[0002] Existing battery bottom tubes mainly suffer from the following three typical problems, thus failing to meet the multi-dimensional requirements of cost, structural strength, battery compatibility, and user experience:

[0003] Currently, most mainstream electric bicycles using battery swapping technology use aluminum alloy for their lower tubes. Based on different processing techniques, aluminum alloy lower tubes can be divided into profile tubes and water-injected tubes. 1) Profile tubes are formed by stretching using profile molds. However, due to limitations in the stretching process, only long strips with the same cross-section can be produced. While these long strips can be combined with extrusion or bending molds to obtain simpler shapes, the types are relatively limited. 2) Water-injected tubes are obtained by injecting high-pressure liquid into aluminum profiles to deform them. These water-injected tubes have irregular appearances and internal structures, allowing them to fit the complex surfaces of the outer mold. While this improves the overall integration and styling diversity of the vehicle and maximizes the battery installation space inside the lower tube, the water-injected tubes still require multiple subsequent processing steps after forming (such as surface polishing, CNC precision machining of the battery box opening, and welding of internal mounting brackets), making the process cumbersome and costly. Furthermore, the widespread use of aluminum alloy downtubes has increased the overall cost of vehicles. On the one hand, aluminum alloy itself is a high-cost raw material; on the other hand, to match the lightweight characteristics of aluminum alloy downtubes, the entire vehicle frame usually needs to be made of aluminum alloy, further increasing the frame manufacturing cost. In addition, if aluminum alloy downtubes need to meet the frame strength requirements, they need to be designed with thicker walls and complex reinforcement structures, and the increase in wall thickness will significantly reduce the installation space of the battery box inside the downtube. This contradiction directly results in the fact that existing aluminum alloy downtubes can only be used with ternary lithium batteries, which have higher density and smaller volume. They have extremely poor compatibility with lithium iron phosphate cells, which have lower density but better safety and higher market acceptance (especially the need for large-capacity multi-cell arrangement), making it difficult to meet users' demand for high-safety, high-capacity batteries.

[0004] Some electric bicycles use iron downtubes, which are often formed by bending and welding sheet metal or processing profiled iron pipes. These iron downtubes have a simple structure and are mostly straight, generally not supporting convenient battery swapping. When the battery is fixed inside the iron downtube, swapping it requires pulling it out from openings at both ends of the downtube, which is extremely inconvenient. If battery swapping openings were added to the iron downtube to meet swapping needs, it would severely weaken the downtube itself, requiring additional reinforcement of the entire frame by welding a top tube. However, this additional welded top tube raises the lowest point of the frame, making it unfriendly to shorter riders or female riders wearing skirts, resulting in poor frame versatility and difficulty adapting to most users.

[0005] Currently, mechanical locks or screw covers are mostly used to lock the lower tube battery. However, mechanical locks are complex in structure, take up a lot of space, and require a keyhole opening on the outside of the lower tube, which will damage the overall appearance of the vehicle. Compared with existing intelligent locking devices, the key unlocking method of mechanical locks is not convenient enough, and the presence of a keyhole makes it easier to pry open the lock and steal the battery.

[0006] In summary, existing technologies for aluminum alloy bottom tubes suffer from high costs and poor battery compatibility due to space constraints. Traditional iron bottom tubes have deficiencies in structural design, battery swapping functionality, and strength reinforcement. Furthermore, the mechanical locks of battery locking mechanisms cannot meet the requirements for intelligent and secure operation. Therefore, there is an urgent need for a novel battery bottom tube technology that balances cost, structural strength, battery compatibility, and ease of battery swapping. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a battery integration system for battery swapping electric bicycles.

[0008] This battery-swapping electric bicycle battery integration system is equipped with a matching battery management system and remote module, including: a battery lower tube, a frame head tube, a battery box, and a base assembly; the base assembly is fixedly connected inside the battery lower tube, the battery box is locked on the base assembly, and the frame head tube is welded to the battery lower tube.

[0009] The battery lower tube includes: a left half, a right half, a rear sealing plate, a front sealing plate, a base assembly bracket, and a frame bottom bracket. The left and right halves of the lower tube are spliced ​​and welded together to form the lower tube body. The front and rear sealing plates are welded to the front and rear ends of the lower tube body, respectively. These plates connect the left and right halves of the lower tube and enhance the overall strength of the lower tube body. The base assembly bracket is welded inside the lower tube body to increase the strength of the base and thus improve the battery's resistance to damage. The frame head tube is welded to the front of the lower tube body, and the frame bottom bracket is welded to the rear. The frame bottom bracket enhances the strength of the lower tube body, and the frame head tube enhances the overall strength of the frame.

[0010] The battery box includes a battery box cover, cover baffle, cover anti-collision block, battery box speaker, battery box upper shell, battery box bottom shell, locking tongue baffle, battery box charging terminal waterproof pad, battery box charging terminal, battery box discharging terminal waterproof pad, battery box discharging terminal, battery management system (BMS) module waterproof pad, battery management system shell, and battery management system cover; the battery box speaker is also fixed on the battery box upper shell by battery box speaker fixing screws; a removable battery box charging terminal waterproof pad is also provided between the battery box bottom shell and the battery box charging terminal (battery box charging terminal) A waterproof pad is used to fill the gap between the bottom shell of the battery box and the charging terminals of the battery box to achieve a waterproof effect. A removable waterproof pad for the discharge terminals of the battery box is also provided between the bottom shell of the battery box and the discharge terminals of the battery box (the waterproof pad for the discharge terminals of the battery box is used to fill the gap between the bottom shell of the battery box and the discharge terminals of the battery box to achieve a waterproof effect); a removable waterproof pad for the battery management system module is also provided between the outer shell of the battery management system and the bottom shell of the battery box; the four sides of the battery box cover completely cover the opening of the lower battery tube, hiding the gap and reducing the requirements for the processing precision of the lower battery tube;

[0011] The base assembly includes a base fixing guide plate, a lower base bracket, a lower base, a lower base discharge terminal, an upper base bracket, an upper base, a battery lock, and a spring plug. The upper base and the lower base are fixedly connected to the base fixing guide plate by upper base fixing screws and lower base fixing screws. The space between the upper base and the lower base is just enough to accommodate the battery box, ensuring that the battery box will not wobble back and forth after installation and has good consistency. The upper base and the lower base are fixed to the base fixing guide plate before the lower battery tube is fixedly connected. Only the base assembly fixing bracket needs to be welded on the frame, which is simple to process and install.

[0012] The battery lock is wirelessly connected to a remote module (such as a mobile phone). The battery lock's power cord is electrically connected to the battery, which in turn connects to the battery box and battery management system. The battery management system is electrically connected to the battery box's speaker. The remote module sends unlocking or locking commands to the battery lock. The battery lock unlocks or locks itself according to these commands. The battery powers the battery management system and the battery box's speaker. The battery management system manages the battery and sends control commands to the battery box's speaker. The battery box's speaker announces the commands.

[0013] The bottom shell of the battery box is also equipped with a battery box locking groove, which is used to lock the battery lock tongue and thus lock the battery box; the rear of the battery lock is equipped with a physical unlocking pull ring, which is used to unlock the battery box in case the battery lock malfunctions or the battery is dead and cannot supply power to the electric bicycle.

[0014] As a preferred option:

[0015] The battery box cover is slidably connected to the upper shell of the battery box; both ends of the battery box cover are fixedly connected to cover plate baffles by baffle fixing screws, and the outer sides of the cover plate baffles at both ends are fixedly connected to cover plate anti-collision blocks by cover plate anti-collision block fixing screws; the bottom shell of the battery box is fixedly connected to a locking tongue baffle, battery box charging terminal fixing screw, battery box discharging terminal fixing screw, and BMS module shell fixing screws; the battery management system shell is also fixedly connected to a battery management system cover by BMS module cover plate fixing screws; a replaceable battery management system is located inside the battery management system shell;

[0016] The lower base is fixedly connected to the lower base bracket by lower base bracket fixing screws; the upper base is fixedly connected to the upper base bracket by upper base bracket fixing screws, and a battery lock is also fixedly connected to the upper base by battery lock fixing screws; the lower base is fixedly connected to the lower base discharge terminal by lower base discharge terminal fixing screws; the bottom of the upper base has two spring plunger mounting holes, in which spring plungers are placed, which can extend outward or retract, and are used to lift the battery box located at the bottom of the upper base; the diameter of the spring plunger mounting holes is slightly smaller than the outer diameter of the spring plunger, so that the spring plunger is in an interference fit after installation, preventing the spring plunger from falling off; the battery lock tongue extends out from the mounting surface between the upper base and the battery box; the lower base discharge terminal can be inserted into the battery box discharge terminal.

[0017] Preferably, the battery box cover is provided with a battery box cover guide boss, and the battery box upper shell is provided with a battery box upper shell guide slot, and the battery box cover guide boss is slidably connected to the battery box upper shell guide slot.

[0018] As a preferred option:

[0019] Both the left and right halves of the lower tube are formed sheet metal, resulting in lower material and processing costs, higher yield, and higher processing efficiency.

[0020] The battery box charging terminal waterproof pad, battery box discharging terminal waterproof pad, and battery management system module waterproof pad are all made of rubber; the battery management system shell is made of aluminum alloy to facilitate heat dissipation of the BMS module; the battery management system cover is made of iron to prevent damage to the BMS module; the lower tube body is made of iron, and the battery box cover is made of aluminum alloy. After the battery box is locked inside the lower tube, the aluminum alloy battery box cover and the iron lower tube body can effectively prevent battery theft; the battery box upper shell and battery box lower shell are both made of plastic; the upper base is made of rubber, the lower base is made of plastic, the lower base bracket and the upper base bracket are made of aluminum alloy, and the base fixing guide plate is made of aluminum alloy; the battery box upper shell and battery box lower shell are formed by ultrasonic welding.

[0021] As a preferred option: the front end cap of the downtube is also used to provide a fixing point for the basket at the front of the frame, and the rear end cap of the downtube is also used to provide a fixing point for the mudguard at the rear of the frame.

[0022] As a preferred embodiment, the base assembly fixing bracket inside the lower tube body is fixedly connected to the base assembly by screws.

[0023] Preferably, the battery box has a battery box positioning groove at the rear end and a battery box positioning boss on the lower base. The battery box positioning boss is inserted into the battery box positioning groove to limit the battery box. The lower base also has a lower base guide groove for guiding the entry of the battery box.

[0024] Preferably, the upper base is provided with a front limiting groove for the battery box corresponding to the front end of the battery box, and the upper base is also provided with an upper base guide groove for guiding the entry of the battery box.

[0025] The beneficial effects of this utility model are:

[0026] The battery lower tube is welded from iron sheet metal, resulting in a simple structure, high production efficiency, and high yield rate, significantly reducing production costs compared to traditional aluminum alloy lower tubes. The iron battery lower tube has a thinner wall and surpasses the strength of aluminum alloy lower tubes. The thinner wall allows for increased internal space while maintaining the same external dimensions, accommodating larger, lower-density, but safer lithium iron phosphate cells. Furthermore, the battery box cover completely covers the lower tube opening recess on all four sides, concealing splicing gaps and reducing the precision requirements for lower tube processing, further improving yield rate and cost advantages. In addition, the BMS module is replaceable, allowing for repair and replacement without damaging the battery box body, reducing after-sales costs. The aluminum alloy BMS shell enhances heat dissipation, improving battery reliability. The aluminum alloy battery box cover and iron lower tube provide double protection, effectively resisting the risk of battery theft.

[0027] Multiple waterproof pads ensure waterproofing for outdoor riding in the rain; the upper and lower bases are integrated and fixed by base fixing guide plates, ensuring precise spacing, no wobble and good consistency after battery box installation; when the base assembly is fixed inside the down tube, only the base guide plate bracket needs to be welded, making frame processing simple and installation convenient; an electronic lock is used to lock the battery box, eliminating the need for a mechanical lock keyhole on the outside of the down tube, reducing processing steps and simplifying the upper base structure, while retaining the physical unlocking pull ring at the tail of the battery lock for emergency unlocking in case of electronic lock failure or battery power failure, balancing intelligence and reliability;

[0028] In summary, this utility model solves the problems of high cost, poor compatibility, and weak waterproof and anti-theft properties in traditional solutions, and designs a low-cost, high-efficiency, safe and intelligent battery swapping system. Attached Figure Description

[0029] Figure 1 A 3D view of a battery integration system for a battery-swapping electric bicycle.

[0030] Figure 2 An exploded view of the battery integration system for a battery-swapping electric bicycle.

[0031] Figure 3 Cross-section of a battery integration system for battery swapping electric bicycles Figure 1 ;

[0032] Figure 4 This is an exploded view of the battery box;

[0033] Figure 5 Three-dimensional base assembly Figure 1 ;

[0034] Figure 6 Three-dimensional base assembly Figure 2 ;

[0035] Figure 7This is an exploded view of the base assembly;

[0036] Figure 8 For the three-dimensional battery box Figure 1 ;

[0037] Figure 9 For the three-dimensional battery box Figure 1 ;

[0038] Figure 10 Cross-section of a battery integration system for a battery-swapping electric bicycle during battery box insertion and removal. Figure 1 ;

[0039] Figure 11 Cross-section of a battery integration system for battery swapping electric bicycles Figure 2 ;

[0040] Figure 12 This is a circuit diagram of the battery integration system for battery swapping electric bicycles according to this utility model.

[0041] Explanation of reference numerals in the attached diagram: 1. Left half of lower tube; 2. Right half of lower tube; 3. Rear sealing plate of lower tube; 4. Front sealing plate of lower tube; 5. Base assembly fixing bracket; 6. Bottom bracket of frame; 7. Head tube of frame; 8. Battery box; 9. Base assembly; 10. Lower tube body; 11. Battery box cover; 12. Cover baffle; 13. Cover anti-collision block; 14. Battery box speaker; 15. Battery box upper shell; 16. Battery box bottom shell; 17. Locking tongue baffle; 18. Waterproof pad for battery box charging terminals; 19. Waterproof pad for battery box discharging terminals; 20. Waterproof pad for battery box discharging terminals; 21. Waterproof pad for battery management system module; 22. Battery management system housing 23, battery management system cover 24, battery box cover guide boss 25, battery box upper shell guide slot 26, base fixing guide plate 27, lower base bracket 28, lower base 29, lower base discharge terminal 30, upper base bracket 31, upper base 32, battery lock 33, spring plug 34, battery lock tongue 35, battery lock physical unlocking pull ring 36, battery box positioning groove 37, battery box positioning boss 38, battery box front end limiting groove 39, battery box locking groove 40, upper base guide groove 41, lower base guide groove 42, battery lock power cord 43. Detailed Implementation

[0042] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0043] As one example, such as Figures 1 to 12As shown, a battery-swapping electric bicycle battery integration system is provided with a matching battery management system and a remote module, including: a battery lower tube, a frame head tube 7, a battery box 8 and a base assembly 9; the base assembly 9 is fixedly connected inside the battery lower tube, the battery box 8 is locked on the base assembly 9, and the frame head tube 7 is welded to the battery lower tube.

[0044] The battery lower tube includes: a left half 1, a right half 2, a rear sealing plate 3, a front sealing plate 4, a base assembly fixing bracket 5, and a frame bottom bracket 6; the left half 1 and the right half 2 are spliced ​​and welded together to form the lower tube body 10; the front sealing plate 4 and the rear sealing plate 3 are welded to the front and rear ends of the lower tube body 10, respectively, which serve to connect the left half and the right half of the lower tube and enhance the overall strength of the lower tube body; the base assembly fixing bracket 5 is welded inside the lower tube body 10. The base assembly fixing bracket is used to increase the strength of the base, thereby improving the battery's resistance to damage; the frame head tube 7 is welded to the front of the lower tube body 10, and the frame bottom bracket 6 is welded to the rear of the lower tube body 10. The frame bottom bracket is used to enhance the strength of the lower tube body, and the frame head tube is used to enhance the overall strength of the frame; the lower tube front sealing plate 4 is also used to provide a fixing point for the basket at the front of the frame, and the lower tube rear sealing plate 3 is also used to provide a fixing point for the mudguard at the rear of the frame; the base assembly fixing bracket 5 inside the lower tube body 10 is fixedly connected to the base assembly 9 by screws;

[0045] The battery box 8 includes a battery box cover 11, a cover baffle 12, a cover anti-collision block 13, a battery box speaker 14, a battery box upper shell 15, a battery box bottom shell 16, a locking tongue baffle 17, a battery box charging terminal waterproof pad 18, a battery box charging terminal 19, a battery box discharging terminal waterproof pad 20, a battery box discharging terminal 21, a battery management system (BMS) module waterproof pad 22, a battery management system housing 23, and a battery management system cover 24; the battery box upper shell 15 is also equipped with a battery box speaker 14 fixedly mounted on it by battery box speaker fixing screws; the battery box bottom shell... A removable waterproof gasket 18 for the battery box charging terminal is also provided between the battery box bottom shell 16 and the battery box charging terminal 19 (the waterproof gasket for the battery box charging terminal is used to fill the gap between the battery box bottom shell and the battery box charging terminal to achieve a waterproof effect); a removable waterproof gasket 20 for the battery box discharge terminal is also provided between the battery box bottom shell 16 and the battery box discharge terminal 21 (the waterproof gasket for the battery box discharge terminal is used to fill the gap between the battery box bottom shell and the battery box discharge terminal to achieve a waterproof effect); a removable battery management system module is also provided between the battery management system housing 23 and the battery box bottom shell 16. A waterproof pad 22; the four sides of the battery box cover 11 completely cover the opening of the battery lower tube, hiding the gap and reducing the requirements for the processing precision of the battery lower tube; the battery box cover 11 is slidably connected to the battery box upper shell 15; both ends of the battery box cover 11 are fixedly connected to cover plate baffles 12 by baffle fixing screws, and the outer sides of the cover plate baffles 12 at both ends are fixedly connected to cover plate anti-collision blocks 13 by cover plate anti-collision block fixing screws; on the battery box bottom shell 16 (fixed by locking tongue baffle screws, fixed by battery box charging terminal screws, fixed by battery box discharge terminal screws, and fixed by B... The MS module housing is fixedly connected to the locking tongue baffle 17, the battery box charging terminal 19, the battery box discharging terminal 21, and the battery management system housing 23 by the BMS module housing fixing screws; the battery management system housing 23 is also fixedly connected to the battery management system cover 24 by the BMS module cover fixing screws; the battery management system housing 23 is equipped with a replaceable battery management system; the battery box cover 11 is provided with a battery box cover guide boss 25, and the battery box upper shell 15 is provided with a battery box upper shell guide slot 26, and the battery box cover guide boss 25 is slidably connected to the battery box upper shell guide slot 26;

[0046] The base assembly 9 includes a base fixing guide plate 27, a lower base bracket 28, a lower base 29, a lower base discharge terminal 30, an upper base bracket 31, an upper base 32, a battery lock 33, and a spring plug 34. The upper base 32 and lower base 29 are fixedly connected to the base fixing guide plate 27 via upper and lower base fixing screws. The space between the upper base 32 and lower base 29 is just enough to accommodate the battery box 8, ensuring that the battery box will not wobble back and forth after installation and has good consistency. The upper base 32 and lower base 29 are fixed to the base fixing guide plate 27 before the lower battery tube is fixedly connected. Only the base assembly fixing bracket needs to be welded to the vehicle frame, simplifying processing and installation. The lower base 29 is fixedly connected to the lower base bracket 28 via lower base bracket fixing screws. The upper base 32 is fixed to the lower base bracket 28 via upper base bracket fixing screws. The upper base bracket 31 is fixedly connected to the bracket 32 ​​by a fixing screw, and the upper base 32 is also fixedly connected to the battery lock 33 by a battery lock fixing screw; the lower base 29 is fixedly connected to the lower base discharge terminal 30 by a lower base discharge terminal fixing screw; the bottom of the upper base 32 has two spring plug mounting holes, and spring plugs 34 are placed in the two spring plug mounting holes. The spring plugs 34 can extend outward or retract, and the spring plugs are used to lift the battery box located at the bottom of the upper base; the diameter of the spring plug mounting hole is slightly smaller than the outer diameter of the spring plug 34, so that the spring plugs are in an interference fit state after installation, preventing the spring plugs 34 from falling off; the battery lock tongue 35 extends out of the mounting surface between the upper base 32 and the battery box 8; the lower base discharge terminal 30 can be inserted into the battery box discharge terminal 21;

[0047] The battery lock 33 is wirelessly connected to a remote module (such as a mobile phone). The battery lock power cord 43 of the battery lock 33 is electrically connected to the battery. The battery is electrically connected to the battery box 8 and the battery management system. The battery management system is electrically connected to the battery box speaker 14. The remote module is used to send unlocking or locking commands to the battery lock 33. The battery lock 33 is used to unlock or lock according to the unlocking or locking commands. The battery is used to supply power to the battery management system and the battery box speaker 14. The battery management system is used to manage the battery and send control commands to the battery box speaker. The battery box speaker is used to announce according to the control commands.

[0048] The bottom shell 16 of the battery box is also provided with a battery box locking groove 40, which is used to lock the battery lock tongue 35 and thus lock the battery box 8; the rear of the battery lock 33 is provided with a battery lock physical unlocking pull ring 36, which is used to pull open the battery box in case the battery lock 33 malfunctions or the battery is dead and cannot supply power to the electric bicycle; the rear end of the battery box 8 is provided with a battery box positioning groove 37, and the lower base 29 is provided with a battery box positioning boss 38, which is inserted into the battery box positioning groove 37 to limit the battery box 8; the lower base 29 is also provided with a lower base guide groove 42 for guiding the entry of the battery box 8;

[0049] Both the left half 1 and the right half 2 of the lower tube are sheet metal after forming, which has low material cost and processing cost, high yield rate and high processing efficiency;

[0050] The battery box charging terminal waterproof pad 18, the battery box discharging terminal waterproof pad 20, and the battery management system module waterproof pad 22 are all made of rubber; the battery management system shell 23 is made of aluminum alloy to facilitate heat dissipation of the BMS module; the battery management system cover 24 is made of iron to prevent damage to the BMS module; the lower tube body 10 is made of iron, and the battery box cover 11 is made of aluminum alloy. After the battery box is locked inside the lower tube, the aluminum alloy battery box cover and the iron lower tube body can effectively prevent the battery from being stolen; the battery box upper shell 15 and the battery box bottom shell 16 are both made of plastic; the upper base 32 is made of rubber, the lower base 29 is made of plastic, the lower base bracket 28 and the upper base bracket 31 are made of aluminum alloy, and the base fixing guide plate 27 is made of aluminum alloy;

[0051] During installation of this battery swapping electric bicycle battery integration system: Lift the front of the battery box 8 with one hand; the lower end of the battery box 8 will naturally droop due to gravity. Align one end of the battery box 8 with the lower base 29. Insert the battery box positioning protrusion 38 into the battery box positioning groove 37 to limit the battery box 8's position. Insert the lower base discharge terminal 30 into the battery box discharge terminal 21. Then, lower the battery box 8 naturally, allowing its front end to fall naturally. Align the front end of the battery box 8 with the battery box on the upper base 32. The front limiting groove 39 is inserted into the upper base 32; after the battery box 8 falls to the bottom, the battery box cover 11 is pressed, causing the battery lock tongue 35 to slide into the battery box locking groove 40 through the lock tongue baffle 17 at the front of the battery box 8, thereby locking the battery box 8; at this point, the battery box 8 is installed and the electric bicycle is powered on; the upper base 32 is provided with a front limiting groove 39 corresponding to the front of the battery box 8, and the upper base 32 is also provided with an upper base guide groove 41 for guiding the entry of the battery box 8.

[0052] When this battery-swapping electric bicycle battery integration system is in operation: the battery lock 33 is unlocked via a remote module, the battery box 8 is lifted by two spring plugs 34 at the bottom of the upper base 32, and the battery box 8 is removed by holding the battery box cover 11 on both sides by hand.

Claims

1. A battery-swapping electric bicycle battery integration system, comprising a matching battery management system and a remote module, characterized in that, include: The battery lower tube, the frame head tube (7), the battery box (8) and the base assembly (9) are fixedly connected inside the battery lower tube, the battery box (8) is locked on the base assembly (9), and the frame head tube (7) is welded to the battery lower tube. The battery lower tube includes: a left half (1), a right half (2), a rear sealing plate (3), a front sealing plate (4), a base assembly fixing bracket (5), and a frame bottom bracket (6); the left half (1) and the right half (2) of the lower tube are spliced ​​and welded to form the lower tube body (10); the front sealing plate (4) and the rear sealing plate (3) of the lower tube body (10) are respectively welded to the front end and the rear end; the base assembly fixing bracket (5) is welded inside the lower tube body (10); the frame head tube (7) is welded to the front part of the lower tube body (10), and the frame bottom bracket (6) is welded to the rear part of the lower tube body (10). The battery box (8) includes a battery box cover (11), a cover baffle (12), a cover anti-collision block (13), a battery box speaker (14), a battery box upper shell (15), a battery box bottom shell (16), a locking tongue baffle (17), a battery box charging terminal waterproof pad (18), a battery box charging terminal (19), a battery box discharging terminal waterproof pad (20), a battery box discharging terminal (21), a battery management system module waterproof pad (22), a battery management system shell (23), and a battery management system cover (24); the battery box upper shell (15) is also fixedly equipped with The battery box has a speaker (14); a removable battery box charging terminal waterproof pad (18) is provided between the battery box bottom shell (16) and the battery box charging terminal (19); a removable battery box discharge terminal waterproof pad (20) is provided between the battery box bottom shell (16) and the battery box discharge terminal (21); a removable battery management system module waterproof pad (22) is provided between the battery management system housing (23) and the battery box bottom shell (16); the four sides of the battery box cover (11) completely cover the opening of the battery lower tube. The base assembly (9) includes a base fixing guide plate (27), a lower base bracket (28), a lower base (29), a lower base discharge terminal (30), an upper base bracket (31), an upper base (32), a battery lock (33), and a spring plug (34); the upper base (32) and the lower base (29) are fixedly connected to the base fixing guide plate (27), the space between the upper base (32) and the lower base (29) accommodates the battery box (8), and the upper base (32) and the lower base (29) are fixed to the base fixing guide plate (27) and then the lower battery tube is fixedly connected to it; The battery lock (33) is wirelessly connected to a remote module, the battery lock (33) is electrically connected to a battery, the battery is electrically connected to a battery box (8) and a battery management system, and the battery management system is electrically connected to a speaker (14) in the battery box; the remote module is used to send unlocking or locking commands to the battery lock (33); the battery lock (33) is used to unlock or lock according to the unlocking or locking commands; the battery is used to supply power to the battery management system and the speaker (14) in the battery box; the battery management system is used to manage the battery and send control commands to the speaker in the battery box; the speaker in the battery box is used to make announcements according to the control commands; The bottom shell (16) of the battery box is also provided with a battery box locking groove (40), which is used to lock the battery lock tongue (35) and thus lock the battery box (8); the tail of the battery lock (33) is provided with a battery lock physical unlocking pull ring (36), which is used to unlock the battery box when the battery lock (33) malfunctions or the battery is out of power and cannot supply power to the electric bicycle.

2. The battery integration system for battery swapping electric bicycles according to claim 1, characterized in that: The battery box cover (11) is slidably connected to the battery box upper shell (15); both ends of the battery box cover (11) are fixedly connected to cover plate baffles (12), and both ends of the cover plate baffles (12) are fixedly connected to cover plate anti-collision blocks (13); the battery box bottom shell (16) is fixedly connected to a locking tongue baffle (17), a battery box charging terminal (19), a battery box discharging terminal (21) and a battery management system shell (23); the battery management system shell (23) is also fixedly connected to a battery management system cover (24); the battery management system shell (23) is equipped with a replaceable battery management system; The lower base (29) is fixedly connected to the lower base bracket (28); the upper base (32) is fixedly connected to the upper base bracket (31), and a battery lock (33) is also fixedly connected to the upper base (32); the lower base (29) is fixedly connected to the lower base discharge terminal (30); the bottom of the upper base (32) is provided with a spring plug mounting hole, and a spring plug (34) is placed in the spring plug mounting hole. The spring plug (34) can extend outward or retract. The diameter of the spring plug mounting hole is smaller than the outer diameter of the spring plug (34) to prevent the spring plug (34) from falling off; the battery lock tongue (35) extends out of the mounting surface between the upper base (32) and the battery box (8); the lower base discharge terminal (30) can be inserted into the battery box discharge terminal (21).

3. The battery integration system for battery swapping electric bicycles according to claim 2, characterized in that: The battery box cover (11) is provided with a battery box cover guide boss (25), and the battery box upper shell (15) is provided with a battery box upper shell guide slot (26). The battery box cover guide boss (25) is slidably connected to the battery box upper shell guide slot (26).

4. The battery integration system for battery swapping electric bicycles according to claim 1, characterized in that: The left half (1) and the right half (2) of the lower tube are both sheet metal after forming. The battery box charging terminal waterproof pad (18), the battery box discharging terminal waterproof pad (20), and the battery management system module waterproof pad (22) are all made of rubber; the battery management system shell (23) is made of aluminum alloy; the battery management system cover (24) is made of iron; the lower tube body (10) is made of iron, and the battery box cover (11) is made of aluminum alloy; the battery box upper shell (15) and the battery box bottom shell (16) are both made of plastic; the upper base (32) is made of rubber, the lower base (29) is made of plastic, the lower base bracket (28) and the upper base bracket (31) are made of aluminum alloy, and the base fixing guide plate (27) is made of aluminum alloy.

5. The battery integration system for battery swapping electric bicycles according to claim 1, characterized in that: The lower tube front sealing plate (4) is also used to provide a fixing point for the vegetable basket at the front end of the frame, and the lower tube rear sealing plate (3) is also used to provide a fixing point for the mudguard at the rear end of the frame.

6. The battery integration system for battery swapping electric bicycles according to claim 1, characterized in that: The base assembly fixing bracket (5) inside the lower tube body (10) is fixedly connected to the base assembly (9).

7. The battery integration system for battery swapping electric bicycles according to claim 1, characterized in that: The battery box (8) has a battery box positioning groove (37) at its rear end, and a battery box positioning boss (38) is provided on the lower base (29). The battery box positioning boss (38) is inserted into the battery box positioning groove (37) to limit the battery box (8). The lower base (29) is also provided with a lower base guide groove (42) for guiding the entry of the battery box (8).

8. The battery integration system for battery swapping electric bicycles according to claim 1, characterized in that: The upper base (32) is provided with a battery box front end limiting groove (39) corresponding to the front end of the battery box (8), and the upper base (32) is also provided with an upper base guide groove (41) for guiding the entry of the battery box (8).

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