CN216508833U

CN216508833U - Electric bicycle frame tube with battery box structure

Info

Publication number: CN216508833U
Application number: CN202123348705.7U
Authority: CN
Inventors: 杨玉峰
Original assignee: Tianjin Jinlun Group Xinde Vehicle Industry Co ltd
Current assignee: Tianjin Jinlun Group Xinde Vehicle Industry Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-13
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to an electric bicycle frame tube with a battery box structure. The battery box comprises a frame tube main body with a battery box at the bottom of the middle part, wherein a battery box cover with a battery lock is arranged on the battery box, and the outline shape of the battery box cover is consistent with that of the frame tube main body; a plurality of strip-shaped connecting holes are formed in the top wall of the frame tube main body; a lower bent pipe is arranged at the lower end of the frame pipe main body, a lower connecting pipe is arranged below the lower bent pipe, an upper bent pipe is arranged at the upper end of the frame pipe main body, and an upper connecting pipe is arranged above the upper bent pipe; the frame tube main body, the lower bent tube, the lower connecting tube, the upper bent tube and the upper connecting tube are manufactured by processing the same metal tube through a water injection molding process. The electric bicycle frame pipe with the simple structure is beneficial to improving the simplicity of an electric bicycle frame, provides reliable protection for the battery, realizes hidden installation of the battery, and improves the overall structural strength through integrated water injection molding processing.

Description

Electric bicycle frame tube with battery box structure

Technical Field

The utility model belongs to the technical field of electric bicycle components, and particularly relates to an electric bicycle frame tube with a battery box structure.

Background

With the development of technology and the improvement of living standard of people, the electric bicycle is used as a riding tool and plays an increasingly important role in the life of people. The electric bicycle structurally comprises a frame, a front fork, a handlebar, wheels, a motor, a battery, a vehicle control unit and the like, wherein the battery is installed on the frame, and the motor is controlled by the vehicle control unit to run, so that the vehicle can be ridden.

The current design direction of the electric bicycle is to carry out the simplified design on the bicycle frame and improve the overall sense of the electric bicycle. On the other hand, the battery pack of the electric bicycle is usually designed to be removable for charging, which involves battery protection and theft prevention. Along with electric bicycle makes more and more the explanation sense of design, provides hidden design to the battery and has become people's demand gradually, through hiding the battery, can promote electric bicycle appearance design's succinct degree to provide certain guard action for comparatively valuable and delicate group battery.

Therefore, it is necessary to structurally optimize the frame tubes constituting the electric bicycle frame to improve the simplicity of the frame and to provide a protection function for the battery.

SUMMERY OF THE UTILITY MODEL

The utility model provides the electric bicycle frame tube with the battery box structure, which is simple in structure and can reliably protect the battery, for solving the technical problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: a frame tube of an electric bicycle with a battery box structure comprises a frame tube main body, wherein a battery bin is arranged at the bottom of the middle part of the frame tube main body; a plurality of strip-shaped connecting holes are formed in the top wall of the frame tube main body; a lower bent pipe is arranged at the lower end of the frame pipe main body, a lower connecting pipe is arranged below the lower bent pipe, an upper bent pipe is arranged at the upper end of the frame pipe main body, and an upper connecting pipe is arranged above the upper bent pipe; the frame tube main body, the lower bent tube, the lower connecting tube, the upper bent tube and the upper connecting tube are manufactured by processing the same metal tube through a water injection molding process.

The utility model has the advantages and positive effects that:

compared with the existing bicycle frame tube, the bicycle frame tube provided by the utility model has the advantages that the battery bin is arranged in the middle of the bicycle frame tube, the battery bin cover is arranged on the battery bin, the technical effect of mounting the battery component in the bicycle frame tube is realized, and the hidden mounting mode of the battery component is realized. The outer contour shape of the battery compartment cover is consistent with that of the frame tube main body, so that the battery compartment cover and the frame tube main body are integrated when being buckled on the battery compartment, and the structural simplicity of the frame tube and the bicycle frame is improved. The frame pipe main body, the upper bent pipe, the lower bent pipe and the upper connecting pipe and the lower connecting pipe are integrated into a water injection molding structure, so that the structural integrity of the frame pipe is improved, the structural strength of the frame pipe is improved, meanwhile, parts needing to be welded and assembled are reduced, and the processing technology is simplified. Through installing the battery lock on the battery compartment cover, make the battery compartment cover can open and the closure conveniently, be favorable to putting into and taking out the operation to inside battery pack.

Preferably: a plurality of mounting holes are arranged at the bottom of the frame tube main body and the front part of the battery bin.

Preferably: an upper wiring hole is arranged at the bottom of the frame tube main body and the front part of the battery bin; a lower wiring hole is arranged at the bottom of the frame tube main body and the rear part of the battery bin.

Preferably: the lower connecting pipe is a flat pipe, and the lower bent pipe is in arc transition between the frame pipe main body and the lower connecting pipe; the upper connecting pipe is a flat pipe, and the upper bent pipe is in arc transition between the frame pipe main body and the upper connecting pipe.

Preferably: the rear end of the battery compartment cover is hinged with the frame tube main body by a hinge.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic perspective view, from above, of the present invention;

fig. 3 is a schematic perspective view, from the bottom, of the present invention.

In the figure:

1. a lower connecting pipe; 2. a lower bent pipe; 3. a frame tube main body; 4. a battery compartment cover; 5. a battery lock; 6. bending the pipe upwards; 7. an upper connecting pipe; 8. a battery compartment; 9. a strip-shaped connecting hole; 10. mounting holes; 11. an upper wiring hole; 12. a lower wiring hole.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail.

Referring to fig. 1, 2 and 3, the frame tube of an electric bicycle with a battery box structure of the present invention includes a frame tube main body 3 having a battery compartment 8 at the bottom of the middle portion thereof, a battery compartment cover 4 having a battery lock 5 is mounted on the battery compartment 8, a battery assembly is mounted in the battery compartment 8 and in a space above the battery compartment cover 4, the battery lock 5 controls the opening and closing of the battery compartment cover 4, and the battery assembly inside the battery compartment cover 4 can be taken out after the battery compartment cover 4 is opened.

The outer contour shape of the battery compartment cover 4 is consistent with the outer contour shape of the frame tube main body 3, so that when the battery compartment cover 4 is locked on the battery compartment 8, the battery compartment cover 4 and the frame tube main body 3 are fused into a whole, and the simplicity and cleanliness of the frame tube are improved. As shown in the figure, the battery compartment 8 is obtained by cutting off a compartment opening on the frame tube main body 3, specifically, the frame tube main body 3 is placed on a processing platform of a laser cutting machine, and the battery compartment 8 is cut and formed by means of laser cutting. Accordingly, the plate material cut from the frame tube body 3 can be used as the cell case cover 4.

A plurality of strip-shaped connecting holes 9 are formed in the top wall of the frame tube main body 3, and each strip-shaped connecting hole 9 is used for installing a battery base of a battery assembly. Specifically, the battery base is placed in the battery compartment 8, and then a plurality of connecting bolts are adopted to penetrate through the strip-shaped connecting holes 9, so that the battery base is fixed in the battery compartment 8.

In the present embodiment, a plurality of mounting holes 10 are provided at the bottom of the tube main body 3 and the front portion of the battery compartment 8, the mounting holes 10 are used to mount accessories (such as a plug terminal of a battery, a controller of an electric bicycle, etc.) of the electric bicycle to the front portion of the bottom of the tube main body 3, and the accessories are usually placed inside the tube main body 3 and fixed by a plurality of screws inserted through the mounting holes 10.

In this embodiment, an upper wiring hole 11 is formed at the bottom of the frame tube main body 3 and the front part of the battery compartment 8; the lower wiring hole 12 is formed in the bottom of the frame pipe main body 3 and the rear portion of the battery bin 8, the upper wiring hole 11 and the lower wiring hole 12 are used for wiring of the electric bicycle, the upper wiring hole 11 can be used for wiring of an electric control device on a handlebar, and the lower wiring hole 11 can be used for wiring of a built-in motor, a sensor and the like.

In this embodiment, the rear end of the battery compartment cover 4 is hinged to the tube mounting main body 3 by a hinge, so that when the battery lock 5 is unlocked, the battery compartment cover 4 is tilted downward and opened without being separated from the tube mounting main body 3, which improves the operation convenience of putting and taking out the battery pack.

The lower end of the frame pipe main body 3 is provided with a lower bent pipe 2, a lower connecting pipe 1 is arranged below the lower bent pipe 2, an upper bent pipe 6 is arranged at the upper end of the frame pipe main body 3, and an upper connecting pipe 7 is arranged above the upper bent pipe 6. As shown in the drawing, the lower bent pipe 2 is used to form a certain angle between the rack pipe main body 3 and the lower connection pipe 1, and the upper bent pipe 6 is used to form a certain angle between the rack pipe main body 3 and the upper connection pipe 7. The lower connecting pipe 1 is generally fixedly connected with a five-way structure of the electric bicycle, and the upper connecting pipe 7 is generally fixedly connected with a front fork pipe of the electric bicycle.

In this embodiment, the lower connecting pipe 1 is a flat pipe, and the lower bent pipe 2 forms an arc transition between the frame pipe main body 3 and the lower connecting pipe 1; similarly, the upper connecting pipe 7 is a flat pipe, and the upper bent pipe 6 forms an arc transition between the frame pipe main body 3 and the upper connecting pipe 7.

The frame tube main body 3, the lower bent tube 2, the lower connecting tube 1, the upper bent tube 6 and the upper connecting tube 7 are manufactured by processing the same metal tube through a water injection molding process, and the water injection molding process is an existing processing process and adopts water pressure to perform compression molding on the metal tube.

The processing mode is as follows:

manufacturing a machining die of the frame tube, welding a blind plate at one end of the metal tube for plugging, welding and installing a high-pressure connector at the other end of the metal tube, and then integrally placing the metal tube into a die cavity of the die; sending a high-pressure water source into the metal pipe through a high-pressure pipeline, expanding the metal pipe under the action of pressure, shaping the outer wall contour of the metal pipe by the mold cavity contour of a mold, maintaining the pressure for a certain time, stopping the high-pressure water source, and taking out the shaped metal pipe from the mold;

placing the shaped metal tube on a processing platform of a laser cutting machine, removing the rear end of the lower connecting tube 1 and the front end of the upper connecting tube 7 in a laser cutting mode, cutting the bottom of the frame tube main body 3 to obtain a battery compartment 8, and using the cut plate as a battery compartment cover 4; processing the strip-shaped connecting hole 9, the mounting hole 10, the upper wiring hole 11 and the lower wiring hole 12 on the processing center;

a battery base is arranged in the battery bin 8, a battery lock 5 is arranged at the upper end of the battery bin cover 4, and a hinge is arranged between the lower end of the battery bin cover 4 and the frame tube main body 3; the battery assembly is placed in the battery compartment 8 and connected with the battery base, the battery compartment cover 4 is buckled, and the battery lock 5 is locked.

Claims

1. The utility model provides an electric bicycle frame pipe with battery case structure which characterized in that: the battery rack tube comprises a rack tube main body (3) with a battery bin (8) at the bottom of the middle part, wherein a battery bin cover (4) with a battery lock (5) is arranged on the battery bin (8), and the outline shape of the battery bin cover (4) is consistent with that of the rack tube main body (3); a plurality of strip-shaped connecting holes (9) are formed in the top wall of the frame tube main body (3); a lower bent pipe (2) is arranged at the lower end of the pipe erecting main body (3), a lower connecting pipe (1) is arranged below the lower bent pipe (2), an upper bent pipe (6) is arranged at the upper end of the pipe erecting main body (3), and an upper connecting pipe (7) is arranged above the upper bent pipe (6); the frame tube main body (3), the lower bent tube (2), the lower connecting tube (1), the upper bent tube (6) and the upper connecting tube (7) are manufactured by processing the same metal tube through a water injection molding process.

2. The electric bicycle frame tube with a battery box structure as claimed in claim 1, wherein: a plurality of mounting holes (10) are arranged at the bottom of the frame tube main body (3) and the front part of the battery bin (8).

3. The electric bicycle frame tube with a battery box structure as claimed in claim 2, wherein: an upper wiring hole (11) is arranged at the bottom of the frame tube main body (3) and the front part of the battery bin (8); a lower wiring hole (12) is arranged at the bottom of the frame tube main body (3) and the rear part of the battery bin (8).

4. The electric bicycle frame tube with a battery box structure as claimed in claim 3, wherein: the lower connecting pipe (1) is a flat pipe, and the lower bent pipe (2) is in arc transition between the frame pipe main body (3) and the lower connecting pipe (1); the upper connecting pipe (7) is a flat pipe, and the upper bent pipe (6) is in arc transition between the frame pipe main body (3) and the upper connecting pipe (7).

5. The electric bicycle frame tube with a battery box structure as claimed in claim 4, wherein: the rear end of the battery compartment cover (4) is hinged with the frame tube main body (3) by a hinge.