Lower tube type electric bicycle lithium battery

Abstract

The utility model belongs to the technical field of lithium batteries, and discloses a down-tube type electric bicycle lithium battery, which comprises a box body, a lithium battery is placed in the box body, the top of the box body is connected with a battery cover, two sides of the battery cover are rotatably connected with handles, and two sides of the battery cover are both provided with a charging port and a discharging port; the protection assembly is connected to the bottom of the box body, the protection assembly comprises a connecting frame, and the connecting frame is connected to the bottom of the box body. Through the arrangement of the protection assembly structure, when the box body falls off, a connecting plate makes contact with the ground firstly, and under the action of a spring and a movable block, the box body is prevented from falling off; the bottom of the box body can be buffered, impact force borne by the bottom of the box body is relieved, the bottom of the box body is effectively protected, the situation that the bottom end of the box body is prone to being damaged due to large impact force is prevented, and the health state of the lithium battery in the box body is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium batteries, and in particular relates to a downtube type lithium battery for electric bicycles. Background Art

[0002] Lithium-ion batteries are rechargeable batteries that rely mainly on the movement of lithium ions between the positive and negative electrodes to work. Downtube lithium batteries are currently the most commonly used batteries in electric bicycles. This type of battery is easy to install and has strong adaptability to high and low temperatures.

[0003] However, when the existing downtube electric bicycle lithium battery falls accidentally, the bottom end of the downtube electric bicycle lithium battery is easily damaged by a large impact force due to the lack of protective measures at the bottom, which even affects the health of the internal lithium battery and is not conducive to the normal use of the downtube electric bicycle lithium battery. In addition, due to the gap between the lithium battery and the battery box, the lithium battery inside the battery box is prone to shaking during the riding of the electric bicycle, which can easily cause the electric bicycle and the lithium battery to be disconnected, affecting the stability of the lithium battery. Utility Model Content

[0004] The utility model aims to provide a downtube electric bicycle lithium battery to solve the problems that the bottom end of the existing downtube electric bicycle lithium battery is easily damaged by a large impact force and the lithium battery inside the battery box is easily shaken.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a downtube electric bicycle lithium battery, comprising: a box body, a lithium battery is placed inside the box body, and a battery cover is connected to the top of the box body, handles are rotatably connected to both sides of the battery cover, and charging port and discharging port are arranged on both sides of the battery cover; a protective component, the protective component is connected to the bottom of the box body, the protective component includes a connecting frame, the connecting frame is connected to the bottom of the box body, and slide grooves are opened on both sides of the inner wall of the connecting frame, a slider is connected to the inside of the slide groove, one side of the slider extends to the outside of the slide groove, a movable block is connected between the two sliders, a spring is connected between the movable block and the bottom of the box body, the bottom end of the movable block passes through the bottom of the connecting frame, and the movable block passes through one end of the connecting frame and is connected to a connecting plate; a clamping component, the clamping component is connected to both sides of the box body.

[0006] Preferably, the clamping assembly includes a cavity, two of which are provided on both sides of the interior of the box body, and a through groove is provided between the cavity and the outer wall of the box body, and a bearing is installed inside the through groove. A screw is connected through the bearing, and the screw is rotatably connected to the bearing. A clamp is provided between both sides of the inner wall of the box body and the two cavities, and a threaded groove is provided on one side of the clamp, and the screw is threadedly connected to the clamp through the threaded groove.

[0007] Preferably, guide rods are connected between both sides of the inner walls of the two slide grooves, and the guide rods pass through the slider.

[0008] Preferably, a rubber pad is provided at the bottom of the connecting plate.

[0009] Preferably, one end of the screw rod is connected to a torsion plate, and a plurality of arc grooves are formed on the edge of the torsion plate.

[0010] Preferably, one side of the clamping block is connected to a limiting plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model provides a protective component. When the box body falls, the connecting plate will first contact the ground. Under the action of the spring and the movable block, the bottom of the box body can be cushioned to reduce the impact force on the bottom of the box body, thereby achieving effective protection for the bottom of the box body and preventing the bottom of the box body from being easily damaged by a large impact force, thereby ensuring that the lithium battery inside the box body is in a healthy state.

[0013] (2) The utility model provides a clamping assembly. When the lithium battery in the box body needs to be clamped and fixed, the screws on both sides of the box body are screwed to make the screws rotate through the bearings. Due to the threaded connection between the screw and the thread groove, the two clamping blocks move relatively on the screw and clamp the two sides of the lithium battery, thereby preventing the lithium battery in the box body from shaking during riding of the electric bicycle, maintaining a stable connection between the electric bicycle and the lithium battery, and improving the stability of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A magnified image of point A;

[0016] Figure 3 It is a left view of the utility model;

[0017] In the figure: 1. box body; 2. lithium battery; 3. battery cover; 4. handle; 5. charging port; 6. discharge port; 7. connecting frame; 8. slide groove; 9. slider; 10. spring; 11. movable block; 12. connecting plate; 13. guide rod; 14. rubber pad; 15. cavity groove; 16. through groove; 17. bearing; 18. screw; 19. clamping block; 20. threaded groove; 21. limit plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-Figure 3 As shown, the utility model provides the following technical solutions: a downtube electric bicycle lithium battery, comprising: a box body 1, a lithium battery 2 is placed inside the box body 1, and a battery cover 3 is connected to the top of the box body 1, handles 4 are rotatably connected to both sides of the battery cover 3, and charging ports 5 and discharging ports 6 are provided on both sides of the battery cover 3; a protective component, the protective component is connected to the bottom of the box body 1, the protective component includes a connecting frame 7, the connecting frame 7 is connected to the bottom of the box body 1, and both sides of the inner wall of the connecting frame 7 are provided with slide grooves 8, the inside of the slide groove 8 is connected to a slider 9, one side of the slider 9 extends to the outside of the slide groove 8, a movable block 11 is connected between the two sliders 9, a spring 10 is connected between the movable block 11 and the bottom of the box body 1, the bottom end of the movable block 11 passes through the bottom of the connecting frame 7, and the movable block 11 passes through one end of the connecting frame 7 and is connected to a connecting plate 12; a clamping component, the clamping component is connected to both sides of the box body 1.

[0020] Through the above technical solution:

[0021] Specifically, when the box body 1 falls, the connecting plate 7 will first come into contact with the ground, and under the action of the spring 10 and the movable block 11, the bottom of the box body 1 will move toward the side of the movable block 11 through the slide groove 8, so that the spring 10 is compressed, thereby buffering the bottom of the box body 1 and reducing the impact force on the bottom of the box body 1, thereby achieving effective protection for the bottom of the box body 1 and preventing the bottom end of the box body 1 from being easily damaged by a large impact force, so that the lithium battery 2 inside the box body 1 is guaranteed to be in a healthy state, and the clamping assembly is provided to facilitate the lithium battery 2 to remain stable in the box body 1.

[0022] In the present utility model, further implementation modes are provided, referring to Figure 1 and Figure 2The clamping assembly includes a cavity 15, two cavities 15 are provided on both sides of the interior of the box body 1, and a through groove 16 is provided between the cavity 15 and the outer wall of the box body 1, and a bearing 17 is installed inside the through groove 16. A screw 18 is connected through the bearing 17, and the screw 18 is rotatably connected to the bearing 17. A clamping block 19 is provided between both sides of the inner wall of the box body 1 and the two cavities 15, and a threaded groove 20 is provided on one side of the clamping block 19, and the screw 18 is threadedly connected to the clamping block 19 through the threaded groove 20.

[0023] Through the above technical solution:

[0024] Specifically, when the lithium battery 2 inside the box body 1 needs to be clamped and fixed, the screws 18 on both sides of the box body 1 are screwed so that the screws 18 rotate through the bearings 17. Due to the threaded connection between the screws 18 and the threaded grooves 20, the two clamping blocks 19 move relatively on the two screws 18 respectively, and clamp the two sides of the lithium battery 2, so that the lithium battery 2 remains stable inside the box body 1, thereby preventing the lithium battery 2 inside the box body 1 from shaking during riding of the electric bicycle, maintaining a stable connection between the electric bicycle and the lithium battery 2, and improving the stability of the lithium battery 2 in use.

[0025] Reference Figure 1-Figure 3 A guide rod 13 is connected between both sides of the inner walls of the two slide grooves 8, and the guide rod 13 runs through the slider 9. A rubber pad 14 is provided at the bottom of the connecting plate 12. One end of the screw rod 18 is connected to a torsion plate, and a plurality of arc grooves are provided on the edge of the torsion plate. A limiting plate 21 is connected to one side of the clamping block 19.

[0026] Through the above technical solution:

[0027] Specifically, the stability of the slider 9 in the slide groove 8 is improved by setting the guide rod 13, the impact caused by the box body 1 falling is further mitigated by setting the rubber pad 1, the screwing of the screw 18 is facilitated by setting the arc groove on the torsion plate, and the clamping block 19 is facilitated to be limited inside the cavity 15 by setting the limit plate 21.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A downtube electric bicycle lithium battery, characterized in that: include: A box body (1), wherein a lithium battery (2) is placed inside the box body (1), and a battery cover (3) is connected to the top of the box body (1), handles (4) are rotatably connected to both sides of the battery cover (3), and charging ports (5) and discharging ports (6) are provided on both sides of the battery cover (3); A protection component, the protection component is connected to the bottom of the box body (1), the protection component comprises a connecting frame (7), the connecting frame (7) is connected to the bottom of the box body (1), and both sides of the inner wall of the connecting frame (7) are provided with sliding grooves (8), the interior of the sliding groove (8) is connected with a slider (9), one side of the slider (9) extends to the outside of the sliding groove (8), a movable block (11) is connected between the two sliders (9), a spring (10) is connected between the movable block (11) and the bottom of the box body (1), the bottom end of the movable block (11) passes through the bottom of the connecting frame (7), and one end of the movable block (11) passing through the connecting frame (7) is connected to a connecting plate (12); A clamping assembly is connected to two sides of the box body (1).

2. A downtube electric bicycle lithium battery according to claim 1, characterized in that: The clamping assembly comprises a cavity (15), wherein two cavities (15) are provided on both sides of the interior of the box body (1), and a through groove (16) is provided between the cavity (15) and the outer wall of the box body (1), a bearing (17) is installed inside the through groove (16), a screw rod (18) is connected through the bearing (17), and the screw rod (18) is rotatably connected to the bearing (17), and clamping blocks (19) are provided between both sides of the inner wall of the box body (1) and the two cavities (15), and a threaded groove (20) is provided on one side of the clamping block (19), and the screw rod (18) is threadedly connected to the clamping block (19) through the threaded groove (20).

3. A downtube electric bicycle lithium battery according to claim 1, characterized in that: A guide rod (13) is connected between both sides of the inner walls of the two slide grooves (8), and the guide rod (13) passes through the slide block (9).

4. A downtube electric bicycle lithium battery according to claim 1, characterized in that: A rubber pad (14) is provided at the bottom of the connecting plate (12).

5. A downtube electric bicycle lithium battery according to claim 2, characterized in that: One end of the screw rod (18) is connected to a torsion plate, and a plurality of arc grooves are formed on the edge of the torsion plate.

6. A downtube electric bicycle lithium battery according to claim 2, characterized in that: One side of the clamping block (19) is connected to a limiting plate (21).

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