Built-in type downward-pulling battery mounting structure

Abstract

The utility model discloses a built-in down-pulling battery mounting structure which comprises a lower tube and a controller, a mounting cavity with an opening at the bottom end is arranged in the lower tube, and a battery is mounted in the mounting cavity; the lower part of the lower pipe tilts relative to the opening of the mounting cavity to form a bent part; a five-way pipe of the frame is arranged on the bent part and forms an integrated structure with the bent part and the lower pipe; the bending part is connected with a rotatable bottom cover, the controller is installed in the bottom cover, and the bottom cover covers the bottom end of the battery after being closed. Therefore, the lower end of the lower tube and the lower tube main body can be staggered so as to facilitate loading and taking of a battery, the frame five-way tube can be directly arranged in the bending part to form an integrated structure with the lower tube, so that the structure and the manufacturing process are simpler, and the lower tube is more attractive. Meanwhile, the controller is arranged in the bottom cover, and the controller can avoid the battery after the bottom cover is opened, so that the battery can be directly taken out, the controller does not need to be detached additionally, and the maintenance operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle accessories, in particular to a battery installation structure mainly used for electric bicycles. Background Art

[0002] Current electric bicycles are prone to damage. Battery removal and installation are inconvenient during maintenance, and parts like the controller are prone to damage, resulting in high repair costs. This is primarily due to the top-access battery installation structure used in conventional electric bicycles. This makes it difficult to remove or install the battery from the bottom up or from the top down when there's insufficient overhead space, such as when blocked by a crossbar. Some electric bicycles use a side-access installation, but these batteries are typically exposed, resulting in poor waterproofing and anti-theft performance. Others use an internal installation structure, which offers the advantage of concealed batteries and improved waterproofing and anti-theft performance. However, current internal installations also present several issues. For example, the need for a clearance for battery removal requires staggering the down tube and the bottom bracket bracket to facilitate battery removal. Conventional methods typically involve welding a separate section of the chassis to the bottom of the down tube for mounting the bottom bracket bracket, resulting in a complex structure and cumbersome manufacturing process, which also detracts from the overall aesthetics of the vehicle. Furthermore, with the battery located above and the controller below, battery maintenance requires removing the controller before removing the battery, significantly inconvenient. Utility Model Content

[0003] In view of the defects in the prior art, the utility model provides a built-in bottom-draw battery installation structure with a simpler structure, a more reasonable design, a simpler manufacturing process, and more convenient maintenance and repair operations.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a built-in bottom-pull battery mounting structure, comprising a lower tube and a controller, a mounting cavity with an opening at the bottom end being provided in the lower tube, and the battery being installed in the mounting cavity, characterized in that: the lower portion of the lower tube is tilted relative to the opening of the mounting cavity to form a curved portion, and the curved portion and the opening of the mounting cavity are staggered with each other; the five-way tube of the frame is provided on the curved portion, and the five-way tube forms an integral structure with the curved portion and the lower tube; a rotatable bottom cover is connected to the bottom end of the curved portion, and the controller is installed inside the bottom cover, and the bottom cover covers the bottom end of the battery after being closed and locked to the lower tube.

[0005] Furthermore, a hinge seat is provided at the bottom end of the bent portion, and the tail end of the bottom cover has a hinge arm to form a fixed end. The hinge arm is hingedly assembled with the hinge seat by hinge screws to form a hanging rotatable structure, which is very convenient to open and close.

[0006] Furthermore, the controller is installed and fixed against the inner bottom surface of the bottom cover, and when the bottom cover is closed, the controller is located below the bottom end of the battery.

[0007] Furthermore, a protruding fixing ear is provided at the free end of the bottom cover, and after the bottom cover is closed, a fixing screw passes through the fixing ear and is locked and fixed to the lower tube.

[0008] Furthermore, a charging base is provided on the side of the curved portion, and the charging base is connected to the controller for charging the battery.

[0009] Furthermore, a lock core is provided at the bottom end of the battery, which is locked and fixed to the lower tube. When the key is released, the battery will pop out.

[0010] Preferably, the bent portion is bent upward or in an approximately horizontal posture relative to the opening of the installation cavity.

[0011] Preferably, the curved portion is arc-shaped, and the bottom cover is also an arc-shaped curved structure.

[0012] This utility model bends the lower end of the downtube into a curved portion, offsetting the lower end from the main body of the downtube to facilitate battery installation and removal. The frame bottom bracket can be directly positioned within the curved portion, forming an integrated structure with the downtube. This not only simplifies the structure and manufacturing process, but also enhances the appearance. Furthermore, by locating the controller within the bottom cover, the controller moves away from the battery when the bottom cover is opened, allowing direct removal of the battery without having to disassemble the controller, making repair and maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0015] Figure 3 This is a schematic diagram of the decomposition structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the exploded structure of the utility model from another angle.

[0017] In the figure, 1 is the lower tube, 11 is the bending part, 12 is the hinge seat, 2 is the battery, 21 is the lock core, 3 is the bottom cover, 31 is the hinge arm, 32 is the fixing ear, 4 is the controller, 5 is the five-way pipe, 6 is the charging base, 7 is the fixing screw, and 8 is the hinge screw. DETAILED DESCRIPTION

[0018] In this embodiment, refer to Figures 1-4The internally concealed, downward-drawable battery mounting structure includes a downtube 1 and a controller 4. The downtube 1 is provided with a mounting cavity with an opening at the bottom end, and the battery 2 is mounted in the mounting cavity to form an internally concealed, downward-drawable mounting structure. The lower portion of the downtube 1 is tilted relative to the opening of the mounting cavity to form a curved portion 11. The curved portion 11 and the opening of the mounting cavity are offset from each other to allow the battery 2 to be removed from below. The frame's bottom bracket 5 is mounted on the curved portion 11, and the bottom bracket 5, the curved portion 11, and the downtube 1 form an integral structure. A rotatable bottom cover 3 is connected to the bottom end of the curved portion 11, and the controller 4 is mounted inside the bottom cover 3. When the bottom cover 3 is closed and locked to the downtube 1, it covers the bottom end of the battery 2. Once the bottom cover 3 is opened, the controller 4 can be removed without further disassembly.

[0019] A hinge seat 12 is provided at the bottom end of the bent portion 11, and the tail end of the bottom cover 3 has a hinge arm 31 to form a fixed end. The hinge arm 31 is hingedly assembled with the hinge seat 12 by a hinge screw 8 to form a hanging rotatable structure, which is very convenient to open and close.

[0020] The controller 4 is installed and fixed against the inner bottom surface of the bottom cover 3 . When the bottom cover 3 is closed, the controller 4 is located below the bottom end of the battery 2 .

[0021] The free end of the bottom cover 3 is provided with a protruding fixing ear 32 . After the bottom cover 3 is closed, a fixing screw 7 is passed through the fixing ear 32 and is locked and fixed to the lower tube 1 .

[0022] A charging base 6 is provided on the side of the curved portion 11 , and the charging base 6 is connected to the controller 4 for charging the battery 2 .

[0023] A lock core 21 is provided at the bottom end of the battery 2 , which is locked and fixed to the lower tube 1 . When the key is released, the battery 2 pops out.

[0024] The curved portion 11 is curved upward or approximately horizontally relative to the opening of the installation cavity, and the curved portion 11 is arc-shaped. The bottom cover 3 is also arc-shaped to match the shape of the curved portion 11 .

[0025] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A built-in bottom-drawable battery mounting structure, comprising a bottom tube and a controller, wherein the bottom tube is provided with a mounting cavity with an open bottom end, and the battery is mounted in the mounting cavity, characterized in that: The lower portion of the down tube is tilted relative to the opening of the mounting cavity to form a bent portion, and the bent portion and the opening of the mounting cavity are staggered. The bottom bracket tube of the frame is arranged on the bent portion, and the bottom bracket tube, the bent portion and the down tube form an integrated structure. A rotatable bottom cover is connected to the bottom end of the bent portion, and the controller is installed inside the bottom cover. When the bottom cover is closed and locked to the down tube, it covers the bottom end of the battery.

2. The built-in bottom-draw battery installation structure according to claim 1, characterized in that: A hinge seat is provided at the bottom end of the bent portion, and the tail end of the bottom cover has a hinge arm to form a fixed end. The hinge arm is hingedly assembled with the hinge seat through a hinge screw to form a hanging rotatable structure.

3. The built-in bottom-draw battery installation structure according to claim 1, characterized in that: The controller is installed and fixed close to the inner bottom surface of the bottom cover. When the bottom cover is closed, the controller is located below the bottom end of the battery.

4. The built-in bottom-draw battery installation structure according to claim 1, characterized in that: The free end of the bottom cover is provided with a protruding fixing ear. After the bottom cover is closed, a fixing screw passes through the fixing ear and is locked and fixed to the lower tube.

5. The built-in bottom-draw battery installation structure according to claim 1, characterized in that: A charging seat is provided on the side of the curved portion, and the charging seat is connected to the controller.

6. The built-in bottom-draw battery installation structure according to claim 1, characterized in that: A lock core is provided at the bottom end of the battery, which is locked and fixed to the lower tube through the lock core.

7. The built-in bottom-draw battery installation structure according to claim 1, characterized in that: The bent portion is bent upward or approximately horizontally relative to the opening of the installation cavity.

8. The built-in bottom-draw battery installation structure according to claim 1 or 7, characterized in that: The curved portion is arc-shaped, and the bottom cover is also an arc-shaped curved structure.

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