Battery tube assembly of electric bicycle

Abstract

A battery tube assembly of an electric bicycle comprises a tube body and a battery assembly detachably arranged in the tube body, and an opening is formed in the side wall of the tube body; more than one group of positioning components are arranged on the other side of the base; the battery assembly comprises a shell, a first end cover is arranged at one end of the shell, and a second end cover is arranged at the other end of the shell; a handle containing groove is formed in the first end cover, a handle is rotatably arranged in the handle containing groove, and when the battery assembly is located in the pipe body, the handle is located in the handle containing groove; due to the fact that the opening of the battery bin is formed in the side face, after the battery is placed in the battery bin, the battery can be supported by the bottom wall of the battery bin, and the battery can be stably fixed in the battery bin. Meanwhile, the battery assembly is provided with the handle, and the battery can be grabbed through the handle, so that the battery is not easy to fall off and damage when the battery is disassembled and assembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bicycle technical field, concretely relates to a battery tube subassembly of electric bicycle. BACKGROUND

[0002] In order to facilitate the installation of the battery, not to occupy other space, usually install the battery pack on the lower pipe of electric bicycle. In the patent document with the announcement number CN222247512U, a lower pipe for installing battery of electric bicycle is disclosed, which includes: pipe body, provided with functional cavity, wiring cavity, battery slot and lock hole, the wiring cavity is located on one side of the functional cavity, the battery slot is located on the other side of the pipe body, and is communicated with the functional cavity, the functional cavity is used for installing battery box, the lock hole is located on one side of the pipe body, and is communicated with the functional cavity, for locking battery box;The rear connecting pipe is arranged on one end of the pipe body and is used for connecting with the middle shaft pipe;And the front connecting pipe is arranged on the other end of the pipe body and is provided with a wiring hole, and the front connecting pipe is used for connecting with the head tube. The scheme can facilitate the installation of the battery box, has high strength, can effectively prevent the deformation of the lower pipe, and the appearance is more beautiful.

[0003] But this scheme still has some deficiencies, because the battery slot of this scheme is opened on the low side of the wiring cavity and the reinforcing cavity, that is, the bottom of the pipe body, that is, the battery pack with a certain weight needs to be installed and disassembled from the bottom of the bicycle frame, which is not convenient for disassembly, and the battery pack is not supported by the pipe body, which is not conducive to the stability of the battery pack after installation;There is no structure in the functional cavity that can limit the battery pack, and the battery pack is easy to shake after being installed in the functional cavity;There is no part on the battery pack that can reliably hold the battery pack, and the battery pack is easy to fall and damage when disassembling the battery pack.

[0004] In the patent document with the announcement number CN210403841U, a lower pipe semi-embedded battery box of electric bicycle with secondary lock structure is disclosed, which is embedded with a secondary lock in the lower pipe of electric bicycle, the front cover of the secondary lock is provided with a secondary lock box cover, a mounting guide limiting boss is opened on the secondary lock box cover, the mounting guide limiting boss is matched with the mounting guide limiting groove of the battery pack, so that the battery pack and the secondary lock box cover are tightly installed together, the secondary lock tongue and the anti-theft lock tongue of the secondary lock are inserted through the secondary lock tongue groove and the anti-theft lock tongue groove of the battery pack and the secondary lock box cover, so that the battery pack is fixed in the lower pipe of electric bicycle by the secondary lock. This scheme realizes screwless quick installation, effectively solves the vibration and abnormal sound of the existing battery box during riding, prolongs the service life of the product, and ensures that the battery will not fall and be damaged when it automatically pops up at the appropriate angle.

[0005] Similarly, the scheme does not set the part that can reliably grab the battery pack on the battery pack, and the battery pack is easy to fall and damage when the battery pack is disassembled; the battery pack is positioned only by two ends, and no structure that can be positioned is set on the side of the battery pack, and the stability is still insufficient. SUMMARY

[0006] The utility model wants to solve the technical problem that the stability of the battery pack after installation in prior art is insufficient and the battery assembly is inconvenient to operate when disassembling.

[0007] To solve the above technical problem, the utility model provides a battery tube assembly of electric bicycle, including pipe body and the battery assembly of detachable being established in pipe body, pipe body is hollow structure, is equipped with first pipe joint in one end of pipe body, is equipped with second pipe joint in the other end of pipe body, is equipped with first resistance piece in one end of pipe body near first pipe joint, is equipped with second resistance piece in one end of pipe body near second pipe joint, and first resistance piece, second resistance piece and pipe body surround and form battery compartment, and the opening of the battery compartment is set in the lateral wall of the pipe body; more than one positioning assembly is arranged between the inner wall of the pipe body and the battery assembly on the side opposite to the opening; the battery assembly includes a shell, a first end cover is arranged at one end of the shell, a second end cover is arranged at the other end of the shell, and the first end cover is matched with the first resistance piece through an inclined surface; a conical part extending outward is arranged on the second end cover, and a conical hole matched with the conical part is arranged on the second resistance piece; a handle accommodating groove is arranged on the first end cover, and a handle is rotatably arranged in the handle accommodating groove, and when the battery assembly is located in the pipe body, the handle is located in the handle accommodating groove.

[0008] The opening of the battery compartment is opened on the side of the pipe body, compared with the structure that the battery pack is disassembled from the bottom in the prior art, the scheme not only facilitates the disassembly and assembly of the battery, but also saves labor when disassembling and assembling; when the battery assembly is put into the battery compartment, the battery assembly can be supported by the bottom of the battery compartment, so that the battery assembly can be stably fixed in the battery compartment during the driving process of the electric bicycle, and the battery assembly is not easy to fall and damage; meanwhile, the rotatable handle is arranged on the battery assembly, and when the battery assembly is disassembled or assembled, the battery assembly can be grabbed through the handle, so that the battery assembly is not easy to fall and damage when disassembling and assembling the battery assembly, and in addition, after the battery assembly is disassembled, the battery assembly can be lifted by rotating the handle, and the battery assembly is convenient to move. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the overall structure schematic diagram of the utility model embodiment;

[0010] Figure 2 It is the exploded structure schematic diagram of the utility model embodiment;

[0011] Figure 3 It is the exploded structure schematic diagram of another view of the utility model embodiment;

[0012] Figure 4 is a bottom view of the utility model embodiment;

[0013] Figure 5 is Figure 4 a middle A-A sectional view;

[0014] Figure 6 is Figure 5 a middle B enlarged view;

[0015] Figure 7 is Figure 5 a middle C enlarged view. DETAILED DESCRIPTION

[0016] The utility model will be further explained in detail in connection with the drawings and specific embodiments.

[0017] As Figure 1 shown, a battery tube assembly of an electric bicycle comprises a tube body 1 and a battery assembly 2 detachably arranged in the tube body 1, the tube body 1 is a hollow structure, a first tube joint 3 is arranged at one end of the tube body 1, and a second tube joint 4 is arranged at the other end of the tube body 1.

[0018] In the embodiment, the first tube joint 3 and the tube body 1 and the second tube joint 4 and the tube body 1 are connected by welding; the welding connection ensures the tightness and stability of the connection between the tube body 1 and the first tube joint 3 and the tube body 1 and the second tube joint 4, and reduces the connection loosening problem caused by vibration and other factors during the driving of the electric bicycle.

[0019] As Figure 2 and Figure 7 shown, a first stop piece 5 is arranged at one end of the tube body 1 close to the first tube joint 3, a second stop piece 6 is arranged at one end of the tube body 1 close to the second tube joint 4, and the first stop piece 5, the second stop piece 6 and the tube body 1 form a battery compartment 10; the tube body 1 comprises a left side wall 11, a right side wall 12, a top wall 13 and a bottom wall 14 connected to each other, and a limiting convex strip 131 for limiting and fixing the first stop piece 5 and the second stop piece 6 is formed on the inner wall of the top wall 13 of the tube body 1; the first stop piece 5 and the tube body 1 and the second stop piece 6 and the tube body 1 are fastened by screws; when the first stop piece 5 and the second stop piece 6 are installed, the limiting convex strip 131 can help quick positioning, shorten the installation time and improve the production efficiency.

[0020] As Figure 3 and Figure 5As shown, in this embodiment, in order to match the overall structural design of the electric bicycle and improve the aesthetic effect, the bottom wall 14 is designed as an arc shape, and an inner bottom wall 15 is further formed between the left side wall 11, the right side wall 12 and the bottom wall 14. The inner bottom wall 15 and the arc-shaped bottom wall 14 enclose a wiring cavity 16. Due to the arc-shaped bottom wall 14, the wiring cavity 16 can have a relatively large space, and the independent wiring cavity 16 provides a special passage for the wires and the like, making the installation, arrangement and maintenance of the wires more convenient. When performing line maintenance or replacement, the line position can be quickly and accurately found, reducing the difficulty of troubleshooting caused by line clutter, reducing maintenance cost and time. At the same time, separating the line from the battery assembly 2 can also reduce the influence of the line on the battery assembly 2 and improve the reliability of the entire system.

[0021] As shown in Figure 3 , an opening 101 is formed in the left side wall 11 of the pipe body 1 for the battery assembly 2 to enter and exit the battery compartment 10. In this embodiment, the opening 101 extends to the top wall 13 to form a top notch 17 for facilitating the entry and exit of the battery assembly. The top notch 17 provides a wider passage for the battery assembly 2 to enter and exit the battery compartment 10. Compared with the case where only the side wall opening 101 is provided, the provision of the top notch 17 makes the operation space larger when the battery assembly 2 is installed and disassembled, reduces the installation difficulty, and improves the installation and disassembly efficiency.

[0022] As shown in Figure 3 and Figure 6 , a plurality of positioning assemblies 20 are arranged between the inner wall of the pipe body 1 on the side opposite to the opening 101 and the battery assembly 2. In this embodiment, the battery assembly 2 includes a shell 21, and the pipe body 1 and the shell 21 are both made of extruded profiles through mechanical processing. The positioning assembly 20 includes a positioning groove 201 formed on the inner wall of the right side wall 12 of the pipe body 1 and a positioning protrusion 202 formed on the shell 21. The cross sections of the positioning groove 201 and the positioning protrusion 202 are both arc-shaped. Through the cooperation of the positioning groove 201 and the positioning protrusion 202, the movement range of the battery assembly 2 in the pipe body 1 is limited, so that it can only be installed and fixed in a specific direction, ensuring the positional accuracy of the battery assembly 2 in the pipe body 1 and avoiding the influence of the displacement of the battery assembly 2 on the normal use of the electric bicycle. Due to the guiding effect of the positioning groove 201 and the positioning protrusion 202, the operator can more quickly and accurately install the battery assembly into the pipe body during installation, improving the installation efficiency.

[0023] As shown in Figure 2 and Figure 3As shown, a first end cap 7 is provided at one end of the housing 21, and a second end cap 8 is provided at the other end of the housing 21. The first end cap 7 and the first abutment 5 are engaged by a bevel. One or more limiting grooves 72 are provided on the first end cap 7. In this embodiment, there are two limiting grooves 72. A limiting protrusion 51 that engages with the limiting groove 72 is provided on the side of the first abutment 5 near the first end cap 7. The limiting protrusion 51 is engaged into the limiting groove 72. The bevel engagement facilitates the disassembly and assembly of the battery assembly. The engagement of the limiting protrusion 51 into the limiting groove 72 increases the connection strength and stability between the first end cap 7 and the first abutment 5. During the operation of the electric bicycle, even if subjected to external forces such as vibration and bumps, relative displacement between the first end cap 7 and the first abutment 5 can be effectively prevented, ensuring the stability of the battery assembly 2 in the battery compartment 10.

[0024] A handle receiving groove 71 is provided on the first end cap 7, and a handle 9 is rotatably provided in the handle receiving groove 71. When the battery assembly 2 is located in the tube body 1, the handle 9 is located in the handle receiving groove 71. In this embodiment, there are two handle receiving grooves 71. A rotating shaft hole 73 perpendicular to the handle receiving groove 71 is provided on the first end cap 7, and a rotating shaft 74 is provided in the rotating shaft hole 73. The rotating shaft 74 passes through both handle receiving grooves 71, and the handle 9 rotates around the rotating shaft 74. The handle 9 provides an easy gripping part for the operator. When moving the battery assembly 2 or performing installation and disassembly operations, it is easier to apply force by gripping the handle 9, reducing the difficulty and labor intensity of operation, and making the process of moving and installing / disassembling the battery assembly 2 more convenient. When the battery assembly 2 is located in the tube body 1, the handle 9 can be rotated into the handle receiving groove 71, avoiding interference between the handle 9 and other parts when the battery assembly 2 is installed. In addition, after the battery assembly 2 is removed, the battery assembly 2 can be lifted by rotating the handle 9, which facilitates the movement of the battery assembly 2.

[0025] The second end cap 8 has an outwardly extending tapered portion 81, and the second stop 6 has a tapered hole 61 that can mate with the tapered portion 81. The second end cap 8 has a female connector 82 that extends into the tapered portion 81. The second stop 6 has a male connector 62 that extends out of the tapered hole 61. When the battery assembly 2 is installed, the tapered portion 81 is inserted into the tapered hole 61, so that the female connector 82 in the tapered portion 81 is connected to the male connector 62 in the tapered hole 61.

[0026] like Figure 3 and Figure 5As shown, in this embodiment, a battery locking lock 75 is also provided on the first end cover 7. The battery locking lock 75 includes a retractable locking tongue 76 and a limiting hole 151 is provided on the inner bottom wall 15. The locking tongue 76 can extend into the limiting hole 151. When the battery assembly 2 is installed into the battery compartment 10, the locking tongue 76 of the battery locking lock 75 can be controlled by the key to extend into the limiting hole 151, so that the battery assembly 2 is limited in the battery compartment 10, preventing the battery assembly 2 from falling out of the battery compartment 10 during the electric bicycle's operation. When it is necessary to remove the battery assembly 2, the locking tongue 76 of the battery locking lock 75 can be controlled by the key to retract into the battery locking lock 75, releasing the limitation between the battery assembly 2 and the battery compartment 10.

[0027] The above structure allows the battery assembly 2 to be installed and removed from the side of the tube 1 by opening an opening in the left side wall 11 of the tube body 1, which is more convenient than installation and removal from the bottom. After the battery assembly 2 is installed in the tube body 1, the bottom wall of the tube body 1 provides support for the battery assembly 2, making it less likely for the battery assembly 2 to fall out of the tube body 1 and be damaged. The handle 9 provided on the first end cap 7 provides an easy gripping point for the operator, which makes it less likely for the battery assembly 2 to fall out and be damaged during installation and removal. In addition, after the battery assembly 2 is removed, it can be lifted by rotating the handle 9, making it easy to move the battery assembly 2.

Claims

1. A battery tube assembly for an electric bicycle, comprising a tube body (1) and a battery assembly (2) detachably disposed within the tube body (1), the tube body (1) having a hollow structure, a first tube connector (3) provided at one end of the tube body (1), and a second tube connector (4) provided at the other end of the tube body (1), characterized in that: A first stop (5) is provided at one end of the tube body (1) near the first pipe joint (3), and a second stop (6) is provided at one end of the tube body (1) near the second pipe joint (4). The first stop (5), the second stop (6) and the tube body (1) form a battery compartment (10). An opening (101) is provided on the side wall of the tube body (1) for the battery assembly (2) to enter and exit the battery compartment (10). One or more positioning components (20) are provided between the inner wall of the tube (1) on the side opposite to the opening (101) and the battery assembly (2). The battery assembly (2) includes a housing (21), a first end cap (7) is provided at one end of the housing (21), and a second end cap (8) is provided at the other end of the housing (21). The first end cap (7) and the first stop (5) are engaged by a bevel. The second end cap (8) is provided with an outwardly extending tapered portion (81), and the second stop (6) is provided with a tapered hole (61) that can engage with the tapered portion (81). A handle receiving groove (71) is provided on the first end cap (7), and a handle (9) is rotatably provided in the handle receiving groove (71). When the battery assembly (2) is located in the tube (1), the handle (9) is located in the handle receiving groove (71).

2. The battery tube assembly for an electric bicycle according to claim 1, characterized in that: The first pipe joint (3) and the pipe body (1) and the second pipe joint (4) and the pipe body (1) are connected by welding.

3. The battery tube assembly for an electric bicycle according to claim 1, characterized in that: The tube (1) includes a left side wall (11), a right side wall (12), a top wall (13) and a bottom wall (14) that are connected to each other. The bottom wall (14) is arc-shaped. An inner bottom wall (15) is also formed between the left side wall (11), the right side wall (12) and the bottom wall (14). The inner bottom wall (15) and the bottom wall (14) form a wiring cavity (16).

4. The battery tube assembly for an electric bicycle according to claim 3, characterized in that: The opening (101) is located on the left side wall (11) and extends to the top wall (13), forming a top notch (17) that facilitates the entry and exit of the battery assembly.

5. The battery tube assembly for an electric bicycle according to claim 3, characterized in that: Both the tube (1) and the shell (21) are made of extruded profiles. The positioning assembly (20) includes a positioning groove (201) formed on the inner wall of the right side wall (12) and a positioning protrusion (202) formed on the shell (21).

6. The battery tube assembly for an electric bicycle according to claim 5, characterized in that: The cross-sections of the positioning groove (201) and the positioning protrusion (202) are both arc-shaped.

7. The battery tube assembly for an electric bicycle according to claim 1, characterized in that: A limiting protrusion (131) for limiting and fixing the first stop (5) and the second stop (6) is formed on the inner wall of the top wall (13); the first stop (5) is fastened to the tube body (1) and the second stop (6) is fastened to the tube body (1) by screws.

8. The battery tube assembly for an electric bicycle according to claim 1, characterized in that: One or more limiting grooves (72) are provided on the first end cap (7), and a limiting protrusion (51) that cooperates with the limiting groove (72) is provided on the side of the first abutment (5) near the first end cap (7). The limiting protrusion (51) is engaged in the limiting groove (72).

9. The battery tube assembly for an electric bicycle according to claim 1, characterized in that: A female connector (82) is provided on the second end cap (8), which extends into the conical part (81); a male connector (62) is provided on the outside of the second stop (6).

10. The battery tube assembly for an electric bicycle according to claim 1, characterized in that: The number of handle receiving slots (71) is two. A rotating shaft hole (73) perpendicular to the handle receiving slot (71) is provided on the first end cap (7). A rotating shaft (74) is provided in the rotating shaft hole (73). The rotating shaft (74) passes through both handle receiving slots (71) at the same time. The handle (9) rotates around the rotating shaft (74).

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