Portable moped battery structure and method of use thereof

Abstract

The application discloses a portable moped battery structure and a use method thereof, and belongs to the technical field of batteries, wherein the inner side of a front cover and a rear cover is provided with a bottom shell bone position groove, the inner sides of the front cover are respectively provided with a support B and a support A, the support B and the support A are provided with a battery cell, the outer ends of the support B and the support A are provided with a limiting support rod, the outer sides of the support B and the support A are symmetrically provided with the bottom shell bone position groove, the inner circle of the front cover and the rear cover is provided with a positioning mutual sleeve, the positioning mutual sleeve in the middle end of the front cover and the rear cover is provided with a pin, the structure strength of the two side surfaces of the battery is enhanced, the battery PACK part is prevented from being squeezed when the battery is subjected to a squeezing test, and thus the safety and reliability of the battery are ensured, the support A and the support B are positioned by means of a screw column mutual sleeve positioning structure, there are eight locking screws in the whole circle, the drop resistance of the battery pack is enhanced, the PACK structure reliability of the battery is enhanced, the battery is convenient, fast and efficient to install, the bottom of the battery cell support A and the bottom of the battery cell support B are provided with a U-shaped positioning structure which is inserted into the bottom shell bone position groove and is provided with a mutual embedding structure.

Description

Technical Field

[0001] This invention relates to a battery structure for electric bicycles, and more particularly to a portable electric bicycle battery structure and its usage method, belonging to the field of battery technology. Background Technology

[0002] The structure of electric bicycle batteries can be divided into two levels: the overall structure of the battery pack and the internal structure of the cells. The mainstream types are lithium-ion batteries and lead-acid batteries, which differ significantly in composition and design.

[0003] In the prior art, such as application number 202421712261.1, a battery structure and a power-assisted vehicle are disclosed. The battery structure includes a housing assembly and a battery assembly disposed in the enclosed space of the housing assembly. The battery assembly includes a cell group, which includes a first cell group and a second cell group connected in parallel. The first cell group includes a plurality of first cells stacked longitudinally and arranged in series in an S-shape, and the second cell group includes a plurality of second cells stacked longitudinally and arranged in series in an S-shape.

[0004] The existing technology still has the following problems: 1- The battery pack cannot pass the compression test during use; 2- The cell bracket does not provide enough space between the cell and the protection board PCM, which will cause the heat of the PCM to be conducted to the cell when it is working, and at the same time cause a short circuit between the two, leading to a safety accident; 3. Existing battery packs have poor structure, low reliability, are not convenient or quick to use, have low production efficiency, and provide poor protection for components and cells when dropped or impacted. 4. The battery casing and internal components are not safe or reliable enough for long-term underwater use, resulting in a high defect rate during production. Summary of the Invention

[0005] The main objective of this invention is to provide a battery structure for a portable electric bicycle.

[0006] The objective of this invention can be achieved by adopting the following technical solution: A portable electric bicycle battery structure includes a front cover and a rear cover for limiting the battery cells; The inner sides of the front cover and the rear cover are provided with bottom shell bone grooves. The inner sides of the front cover are respectively equipped with bracket B and bracket A. The battery cells are distributed between bracket B and bracket A. The outer ends of bracket B and bracket A are surrounded by limit struts. Among them, the outer sides of the bracket B and the bracket A are symmetrically equipped with bottom shell bone grooves; The inner rings of the front cover and the rear cover are provided with interlocking positioning devices, and pins are distributed within the interlocking positioning devices at the middle of the front cover and the rear cover.

[0007] Preferably, the outer side of the bracket B is provided with B+ / B- nickel sheet one, B1 / B8 nickel sheet one, B6 nickel sheet, B1 / B8 nickel sheet two, B2 nickel sheet and B+ / B- nickel sheet two. The B+ / B- nickel sheet one, B1 / B8 nickel sheet one, B6 nickel sheet, B1 / B8 nickel sheet two, B2 nickel sheet and B+ / B- nickel sheet two are in contact with one end of the battery cell. The outer side of the B+ / B- nickel sheet one, B1 / B8 nickel sheet one, B6 nickel sheet, B1 / B8 nickel sheet two, B2 nickel sheet and B+ / B- nickel sheet two is covered with PC sheet three, PC board one and PC board two. The outer side of the bracket A is provided with B1 / B9 nickel electrode sheet one, B7 nickel electrode sheet, B7 nickel electrode sheet, B3 nickel electrode sheet and B1 / B9 nickel electrode sheet two. The B1 / B9 nickel electrode sheet one, B7 nickel electrode sheet, B7 nickel electrode sheet, B3 nickel electrode sheet and B1 / B9 nickel electrode sheet two are in contact with the other end of the battery cell. The outer side of the B1 / B9 nickel electrode sheet one, B7 nickel electrode sheet, B7 nickel electrode sheet, B3 nickel electrode sheet and B1 / B9 nickel electrode sheet two is covered with PC board two.

[0008] Preferably, a PD board module is installed on the inner side of the front cover, and the PD board module is fixedly connected by a PD support plate. A charging port plug is installed on the outer side of the front cover, and a LED button board is installed on one side of the charging port plug. The charging port plug and the LED button board are used in conjunction with the PD board module, and a sealing ring is sleeved on the inner side of the charging port plug.

[0009] Preferably, a female panel plug wire is installed on the inner middle section of the rear cover. A hexagonal nut and a waterproof ring are respectively fitted on the female panel plug wire. The female panel plug wire is rotated and installed inside the front cover and sealed by the waterproof ring.

[0010] Preferably, a buckle plate is installed on the front cover, and a female end panel plug wire is installed on the rear cover, with the buckle plate inserted into the locking slot and interlocked.

[0011] Preferably, a glue-applying groove is provided around one side of the outer ring of the rear cover, and the front cover is placed into the glue-applying groove and sealed and fixed by screws.

[0012] Preferably, after the front cover and the rear cover are assembled, glue is injected through the glue injection groove. A stud is inserted around the bracket A and the stud is inserted into the limiting support rod. Wires are distributed around the outer ring of the bracket B. An insert is installed around the upper end of the front cover.

[0013] Preferably, a double-lock support is installed inside the rear cover, and a double-lock optional block is movably installed inside the double-lock support. The double-lock support and the double-lock optional block are limited by a spindle and a torsion spring.

[0014] Preferably, bracket B and bracket A have circular I-shaped slots, and bracket B and bracket A are fixedly connected by locking screws. The outer side of the front cover is covered with a label.

[0015] Preferably, a portable electric bicycle battery structure also includes its method of use, the method of use comprising the following steps: Step 1: First, place the battery cells into bracket A respectively, then cover the battery cells with bracket B. Insert the studs on bracket A and fix them by screwing them in place. Clamp bracket B and bracket A together with screws. After the battery cells are fixed, install the B+ / B- nickel plates one, B1 / B8 nickel plates one, B6 nickel plates, B1 / B8 nickel plates two, B2 nickel plates, B+ / B- nickel plates two, B1 / B9 nickel plates one, B7 nickel plates, B5 nickel plates, B3 nickel plates, and B1 / B9 nickel plates two with the corresponding battery cells to initially improve stability and increase pressure resistance. Step 2: After fixing the battery cell, place it inside the front cover. Then, insert the pin and reinforcing pin into the positioning interlock. After the pin and reinforcing pin are in place, install the PD board module on one side of the battery cell inside the front cover. Install the charging port plug, LED button board, double lock bracket and female end panel plug wire on the front cover. Perform preliminary waterproofing operation on the inside and outside of the front cover using sealing rings and waterproof rings. Step 3: Make U-shaped positioning at the bottom of bracket B and bracket A and insert them into the bottom shell bone groove to make an interlocking structure. Then cover the back cover and put the insert into the glue groove. Then snap the clip with the buckle. After snapping, fix the front cover and the back cover with screws through the back cover and pins and reinforcing pins respectively. Step 4: After the entire assembly is fixed in place, apply adhesive through the adhesive applicator to the female panel plug wire, charging port plug, LED button board, positioning interlock and double lock support on the front and rear covers. Once the adhesive has solidified, a waterproof seal is achieved again.

[0016] Beneficial technical effects of the present invention: The present invention provides a portable electric bicycle battery structure, which adds five stainless steel shafts to the front and rear shells to enhance the structural strength of the two sides of the battery and ensure that the battery PACK part will not be damaged when the battery is subjected to compression test, thereby ensuring the safety and reliability of the battery. The brackets A and B use a stud interlocking positioning structure with a total of 8 locking screws around the perimeter, which enhances the battery pack's resistance to drops, improves the reliability of the battery pack structure, and makes installation convenient, quick, and efficient. The bottom of the cell brackets A and B are U-shaped and inserted into the bottom shell groove to form an interlocking structure. This serves two purposes: firstly, to position the cell PACK, and secondly, to ensure the strength and reliability of the reinforced structural connection between the cell PACK and the shell, thus avoiding the force on the cell during drop impacts and enhancing the battery pack's drop resistance. The integrated BMS board design facilitates cell packing, makes assembly convenient, and increases production efficiency. The nickel sheet features a circular I-shaped slot for easy spot welding, while also providing excellent vibration and impact resistance to ensure product quality and reliability. The front and rear shells are connected using a screw, snap-fit, and glue groove structure, which ensures both connection reliability, overall product structural strength, and waterproof reliability. The discharge port is waterproofed by pressing a waterproof ring with a lock nut and applying adhesive internally. The screw positions are waterproofed by applying adhesive inside the holes as shown in the diagram. The TYPE_C charging port is waterproofed by pressing a waterproof ring inside, and the outer rubber plug and the front shell are waterproofed by extruding a waterproof ring. The LED button board flexible cable is waterproofed by applying adhesive to the inside of the front shell. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 2 This is a front internal schematic diagram of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 3 This is an internal side top view of a preferred embodiment of a portable electric bicycle battery structure and its method of use according to the present invention; Figure 4 This is an internal perspective side view of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 5 This is a schematic diagram of the rear interior of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 6 This is a schematic diagram of the female end panel plug wire structure of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 7 This is a schematic diagram of a two-lock optional block structure according to a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 8 This is a schematic diagram of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention, showing the structure of a two-lock optional block and a two-lock support. Figure 9 This is a schematic diagram of a PD board module and a PD board support plate structure according to a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 10 This is a schematic diagram of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention, showing a two-lock optional block and a two-lock support structure. Figure 11 This is a side view of the PD board module and PD board support plate according to a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 12 This is a schematic diagram of bracket B, bracket A, and battery cell structure according to a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention; Figure 13 This is a schematic diagram of the charging port plug and LED button board structure of a preferred embodiment of a portable electric bicycle battery structure and its usage method according to the present invention.

[0018] In the diagram: 1. Front cover; 1.1. Insert; 2. Rear cover; 3. Charging port plug; 301. Sealing ring; 4. LED button board; 5. Label; 6. Pin; 7. Reinforcing pin; 8. PD board module; 9. PD board support plate; 10. B+ / B- nickel electrode sheet one; 101. B1 / B8 nickel electrode sheet one; 102. B6 nickel electrode sheet; 103. B1 / B8 nickel electrode sheet two; 104. B2 nickel electrode sheet; 105. B+ / B- nickel electrode sheet two; 106. B1 / B9 nickel electrode sheet one; 107. B7 nickel electrode sheet; 108. B5 nickel electrode sheet; 109. B3 nickel electrode sheet; 110. B1 / B9 nickel electrode sheet two. 11. Bracket B; 12. Bracket A; 13. Battery cell; 14. Optional double lock block; 15. Torsion spring; 16. Double lock support; 17. Spindle; 19. Wire; 20. Female panel plug wire; 21. Hex nut; 210. Waterproof ring; 22. PC sheet three; 23. Protective plate; 24. PC sheet one; 25. PC sheet two; 26. Bottom shell support groove; 28. Positioning interlock; 29. ​​Buckle plate; 30. Locking position; 31. Glue groove; 32. Limiting support rod; 33. Stud. Detailed Implementation

[0019] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] Example 1

[0021] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this embodiment provides a portable electric bicycle battery structure, including a front cover 1 and a rear cover 2 for limiting the battery cell 13; Among them, the inner sides of the front cover 1 and the rear cover 2 are provided with bottom shell bone grooves 26, the inner sides of the front cover 1 are respectively equipped with brackets B11 and brackets A12, the battery cells 13 are distributed between the brackets B11 and brackets A12, and the outer ends of the brackets B11 and brackets A12 are surrounded by limit struts 32. Among them, the outer sides of the brackets B11 and A12 are symmetrically equipped with bottom shell bone grooves 26; The inner rings of the front cover 1 and the rear cover 2 are provided with positioning interlocking 28s, and pins 6 are provided in the positioning interlocking 28s at the middle of the front cover 1 and the rear cover 2. Reinforcing pins 7 are provided in the positioning interlocking 28s at the corners of the front cover 1 and the rear cover 2.

[0022] The outer side of the support B11 is provided with B+ / B- nickel electrode sheet 10, B1 / B8 nickel electrode sheet 101, B6 nickel electrode sheet 102, B1 / B8 nickel electrode sheet 103, B2 nickel electrode sheet 104, and B+ / B- nickel electrode sheet 105. The B+ / B- nickel electrode sheet 10, B1 / B8 nickel electrode sheet 101, B6 nickel electrode sheet 102, and B1 / B8 nickel electrode sheet 103... B2 nickel sheet 104 and B+ / B- nickel sheet 105 are in contact with one end of the battery cell 13. The outer sides of B+ / B- nickel sheet 10, B1 / B8 nickel sheet 101, B6 nickel sheet 102, B1 / B8 nickel sheet 103, B2 nickel sheet 104 and B+ / B- nickel sheet 105 are covered with PC sheet 22, PC board 24 and PC board 25. The outer side of the bracket A12 is provided with B1 / B9 nickel sheet 106, B7 nickel sheet 107, B7 nickel sheet 108, B3 nickel sheet 109 and B1 / B9 nickel sheet 110. The B1 / B9 nickel sheet 106, B7 nickel sheet 107, B7 nickel sheet 108, B3 nickel sheet 109 and B1 / B9 nickel sheet 110 are in contact with the other end of the battery cell 13. The outer side of the B1 / B9 nickel sheet 106, B7 nickel sheet 107, B7 nickel sheet 108, B3 nickel sheet 109 and B1 / B9 nickel sheet 110 is covered with PC board 25.

[0023] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, firstly, the battery cells 13 are placed in the brackets A12 respectively, and then the bracket B11 is placed on the battery cells 13. The studs 33 on the bracket A12 are inserted into the brackets 32 and fixed by screws. The brackets B11 and A12 are clamped and fixed by screws. After the battery cells 13 are fixed, the B+ / B- nickel plates 10, B1 / B8 nickel plates 101, B6 nickel plates 102, B1 / B8 nickel plates 103, B2 nickel plates 104, B+ / B- nickel plates 105, B1 / B9 nickel plates 106, B7 nickel plates 107, B5 nickel plates 108, B3 nickel plates 109 and B1 / B9 nickel plates 110 are installed with the corresponding battery cells 13 to initially improve stability and increase pressure resistance. After fixing the battery cell 13, place it into the front cover 1. Then, insert the pin 6 and the reinforcing pin 7 into the positioning interlock 28. After the pin 6 and the reinforcing pin 7 are in place, install the PD board module 8 on one side of the battery cell 13 inside the front cover 1. Install the charging port plug 3, the LED button board 4, the double lock support 16 and the female end panel plug wire 20 on the front cover 1. Perform preliminary waterproofing on the inside and outside of the front cover 1 through the sealing ring 301 and the waterproof ring 210. After the adhesive solidifies, achieve waterproof sealing again. Add five stainless steel shafts to the front and rear shells to enhance the structural strength of the two sides of the battery and ensure that the battery PACK part will not be damaged when the battery is squeezed during the extrusion test, thereby ensuring the safety and reliability of the battery. The brackets B11 and A12 are positioned by interlocking studs 33, with a total of 8 locking screws around the perimeter, which enhances the battery pack's drop resistance, improves the reliability of the battery pack structure, makes installation convenient, quick and efficient, and achieves double-layer protection and pressure resistance, making it more pressure resistant.

[0024] Example 2

[0025] like Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, a PD board module 8 is installed on the inner side of the front cover 1. The PD board module 8 is fixedly connected by a PD support plate 9. A charging port plug 3 is installed on the outer side of the front cover 1. A light button board 4 is installed on one side of the charging port plug 3. The charging port plug 3 and the light button board 4 work together with the PD board module 8. A sealing ring 301 is sleeved on the inner side of the charging port plug 3.

[0026] A female panel plug wire 20 is installed on the inner middle section of the rear cover 2. A hexagonal nut 21 and a waterproof ring 210 are respectively fitted on the female panel plug wire 20. The female panel plug wire 20 is rotated and installed inside the front cover 1 and sealed by the waterproof ring 210.

[0027] A buckle plate 29 is installed on the front cover 1, and a female end panel plug wire 20 is installed on the rear cover 2. The buckle plate 29 is inserted into the locking position 30 and interlocked.

[0028] The outer edge of one side of the rear cover 2 is provided with a glue groove 31, and the front cover 1 is placed into the glue groove 31 and sealed and fixed by screws.

[0029] After the front cover 1 and the rear cover 2 are assembled, glue is injected through the glue injection groove 31. A stud 33 is inserted around the bracket A12 and the stud 33 is inserted into the limiting support rod 32. The outer ring of the bracket B11 is surrounded by wires 19. The upper end of the front cover 1 is surrounded by an insert 1.1.

[0030] A double-lock support 16 is installed inside the rear cover 2, and a double-lock optional block 14 is movably installed inside the double-lock support 16. The double-lock support 16 and the double-lock optional block 14 are limited by a spindle 17 and a torsion spring 15.

[0031] The brackets B11 and A12 have circular I-shaped slots and are fixedly connected by eight screws. The outer side of the front cover 1 is covered with a label 5. like Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, the bottom of bracket B11 and bracket A12 are U-shaped and inserted into the bottom shell bone groove 26 to form an interlocking structure. Then, the back cover 2 is placed on top of 1, and the insert 1.1 is placed into the glue inlet groove 31. Then, the locking position 30 is engaged with the buckle 29. After the engagement is completed, the front cover 1 and the back cover 2 are fixed by screws through the back cover 2 and respectively with pin 6 and reinforcing pin 7. After the entire assembly is fixed and installed, the adhesive is applied through the adhesive application groove 31 to the female end panel plug wire 20, charging port plug 3, light button board 4, positioning interlock 28 and double lock support 16 on the front cover 1 and rear cover 2. The bottom of the cell brackets A and B are U-shaped and inserted into the bottom shell bone groove to form an interlocking structure. This serves two purposes: firstly, to position the cell PACK, and secondly, to ensure the strength and reliability of the reinforced structural connection between the cell PACK and the shell, thereby avoiding the force on the cell during drop impacts and enhancing the battery pack's drop resistance. The integrated BMS board design facilitates cell packing, makes assembly convenient, and increases production efficiency. The nickel sheet features a circular I-shaped slot for easy spot welding, while also providing excellent vibration and impact resistance, ensuring product reliability. The front and rear shells are connected using a screw, snap-fit, and glue groove structure, ensuring both connection reliability and overall structural strength, as well as waterproofing reliability. The discharge port is waterproofed by a lock nut pressing a waterproof ring and internal glue application. The screw positions are waterproofed by internal glue application as shown in the diagram. The TYPE_C charging port has an internal waterproof ring, and the outer rubber plug and front shell are sealed with a squeeze waterproof ring for waterproofing. The LED button board flexible cable is waterproofed by glue application on the inner surface of the front shell.

[0032] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A portable electric bicycle battery structure, comprising a front cover (1) and a rear cover (2) for limiting the position of a battery cell (13); Its features are: in, The inner sides of the front cover (1) and the rear cover (2) are provided with bottom shell bone grooves (26). The front cover (1) is provided with brackets B (11) and A (12) on both sides. A battery cell (13) is provided between the brackets B (11) and A (12). Limiting struts (32) are distributed around the outer ends of the brackets B (11) and A (12). Among them, the outer sides of the support B (11) and support A (12) are symmetrically equipped with bottom shell bone grooves (26). The inner rings of the front cover (1) and the rear cover (2) are provided with positioning interlocking (28), and pins (6) are provided in the positioning interlocking (28) at the middle of the front cover (1) and the rear cover (2). Reinforcing pins (7) are provided in the positioning interlocking (28) at the corner of the front cover (1) and the rear cover (2).

2. The portable electric bicycle battery structure according to claim 1, characterized in that: The outer side of the support B (11) is provided with B+ / B- nickel electrode sheet one (10), B1 / B8 nickel electrode sheet one (101), B6 ​​nickel electrode sheet (102), B1 / B8 nickel electrode sheet two (103), B2 nickel electrode sheet (104) and B+ / B- nickel electrode sheet two (105). The two nickel plates (104) and the B+ / B- nickel plates (105) are in contact with one end of the battery cell (13). The outer sides of the B+ / B- nickel plates (10), B1 / B8 nickel plates (101), B6 ​​nickel plates (102), B1 / B8 nickel plates (103), B2 nickel plates (104) and B+ / B- nickel plates (105) are covered with PC plates (22), PC boards (24) and PC boards (25). The outer side of the bracket A (12) is provided with B1 / B9 nickel sheet one (106), B7 nickel sheet (107), B7 nickel sheet (108), B3 nickel sheet (109) and B1 / B9 nickel sheet two (110). The B1 / B9 nickel sheet one (106), B7 nickel sheet (107), B7 nickel sheet (108), B3 nickel sheet (109) and B1 / B9 nickel sheet two (110) are in contact with the other end of the battery cell (13). The outer side of the B1 / B9 nickel sheet one (106), B7 nickel sheet (107), B7 nickel sheet (108), B3 nickel sheet (109) and B1 / B9 nickel sheet two (110) is covered with PC board two (25).

3. The portable electric bicycle battery structure according to claim 1, characterized in that: A PD board module (8) is installed on the inner side of the front cover (1). The PD board module (8) is fixedly connected by a PD support plate (9). A charging port plug (3) is installed on the outer side of the front cover (1). A light button board (4) is installed on one side of the charging port plug (3). The light button board (4) of the charging port plug (3) works in conjunction with the PD board module (8). A sealing ring (301) is fitted inside the charging port plug (3).

4. The portable electric bicycle battery structure according to claim 3, characterized in that: The inner middle section of the rear cover (2) is equipped with a female end panel plug wire (20). The female end panel plug wire (20) is fitted with a hexagonal nut (21) and a waterproof ring (210). The female end panel plug wire (20) is rotated and installed inside the front cover (1) and sealed by the waterproof ring (210).

5. The portable electric bicycle battery structure according to claim 4, characterized in that: A buckle plate (29) is installed on the front cover (1), and a female end panel plug wire (20) is installed on the rear cover (2). The buckle plate (29) is inserted into the slot (30) and connected to each other.

6. The portable electric bicycle battery structure according to claim 5, characterized in that: The outer ring of one side of the rear cover (2) is provided with a glue groove (31), and the front cover (1) is placed in the glue groove (31) and sealed and fixed by screws.

7. The portable electric bicycle battery structure according to claim 6, characterized in that: After the front cover (1) and the rear cover (2) are assembled, glue is injected through the glue injection groove (31). A stud (33) is inserted around the bracket A (12). The stud (33) is inserted into the limiting support rod (32). The outer ring of the bracket B (11) is surrounded by wires (19). The upper end of the front cover (1) is surrounded by an insert (1.1).

8. The portable electric bicycle battery structure according to claim 7, characterized in that: The rear cover (2) is equipped with a double lock support (16), and a double lock optional block (14) is movably installed in the double lock support (16). The double lock support (16) and the double lock optional block (14) are limited by a spindle (17) and a torsion spring (15).

9. The portable electric bicycle battery structure according to claim 1, characterized in that: The brackets B (11) and A (12) are circular I-shaped slots. The brackets B (11) and A (12) are fixedly connected by 8 screws. The outer side of the front cover (1) is covered with a label (5).

10. The portable electric bicycle battery structure according to any one of claims 1 to 9 further includes the method of using it, characterized in that: Its usage includes the following steps: Step 1: First, place the battery cell (13) into bracket A (12) respectively, then cover the battery cell (13) with bracket B (11), insert the stud (33) on bracket A (12) into (32) and fix it by rotating the screw. Clamp bracket B (11) and bracket A (12) together with screws. After the battery cell (13) is fixed, place the B+ / B- nickel plate one (10) and B1 / B8 nickel plate one (10) into the bracket. 1) B6 nickel plate (102), B1 / B8 nickel plate II (103), B2 nickel plate (104), B+ / B- nickel plate II (105), B1 / B9 nickel plate I (106), B7 nickel plate (107), B5 nickel plate (108), B3 nickel plate (109) and B1 / B9 nickel plate II (110) are respectively installed with the battery cell (13) to initially improve stability and increase pressure resistance; Step 2: After fixing the battery cell (13), place it into the front cover (1), and then put the pin (6) and reinforcing pin (7) into the positioning interlock (28). After the pin (6) and reinforcing pin (7) are in place, install the PD board module (8) on one side of the battery cell (13) in the front cover (1). Install the charging port plug (3), the light button board (4), the double lock support (16) and the female end panel plug wire (20) on the front cover (1). Perform preliminary waterproofing operation on the inside and outside of the front cover (1) through the sealing ring (301) and the waterproof ring (210). Step 3: Make U-shaped positioning at the bottom of bracket B (11) and bracket A (12) and insert them into the bottom shell bone position groove (26) to make an interlocking structure. Then cover the back cover (2) on (1) and place the insert (1.1) into the glue inlet groove (31). Then lock the slot (30) and the buckle (29). After locking, fix the front cover (1) and the back cover (2) with screws through the back cover (2) and pins (6) and reinforcing pins (7) respectively. Step 4: After the overall installation is completed, apply adhesive through the adhesive applicator (31) to the female panel plug wire (20), charging port plug (3), LED button board (4), positioning interlock (28) and double lock support (16) on the front cover (1) and rear cover (2). After the adhesive solidifies, waterproof sealing is achieved again.

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