CN221214389U

CN221214389U - Electric bicycle frame structure

Info

Publication number: CN221214389U
Application number: CN202322880722.8U
Authority: CN
Inventors: 肖勇军
Original assignee: Wuxi Da'an Vehicle Parts Co ltd
Current assignee: Wuxi Da'an Vehicle Parts Co ltd
Priority date: 2023-10-25
Filing date: 2023-10-25
Publication date: 2024-06-25
Anticipated expiration: 2033-10-25

Abstract

The utility model discloses an electric bicycle frame structure, which comprises a frame main body, wherein the frame main body is fixedly connected with a battery box, the battery box comprises a box body with a U-shaped groove structure and end covers which are arranged at two ends of the box body in a covering manner, the box body and the end covers are enclosed to form a battery containing cavity with an open top, the bottom wall and/or the side wall of the box body are/is provided with elastic arch units, and the arch units are strip-shaped and extend along the length direction of the box body. According to the utility model, the box body of the battery box is bent to form the arch unit, the battery is supported by the arch unit, and when the battery vibrates, the battery is buffered by deformation of the arch unit, so that the damage probability of the battery is reduced; the heat exchange area inside and outside the box body can be increased through the arch unit, so that the heat dissipation efficiency is improved, and the failure rate of the battery is further reduced.

Description

Electric bicycle frame structure

Technical Field

The utility model belongs to the technical field of electric bicycle frames, and particularly relates to an electric bicycle frame structure.

Background

The electric bicycle is a vehicle which uses a storage battery as an auxiliary energy source and is provided with a motor, a controller, a storage battery, a handle bar, and other operating components and a display instrument system on the basis of a common bicycle.

The Chinese patent with publication number CN215155321U discloses an electric vehicle frame with a U-shaped structure, a battery vehicle main frame, wherein a strengthening device for strengthening the mechanical strength of the middle part of the battery vehicle main frame is arranged at the middle part of the battery vehicle main frame; the reinforcing device comprises a composite frame, the shape of the composite frame is matched with the shape of the middle part of the main frame of the battery car, the composite frame and the main frame of the battery car are overlapped and distributed above the middle part of the main frame of the battery car, and a fixedly connected structure which enables the composite frame and the main frame of the battery car to be fixedly connected into an integrated structure is arranged between the composite frame and the main frame of the battery car. The utility model has reasonable and simple structural design, the shape of the composite frame is relatively matched with the shape of the main frame of the battery car, and the mechanical strength is high.

Above-mentioned electric motor car frame is installed the battery in the battery case generally, and in electric motor bicycle daily driving process, because jolting on road surface, the battery can receive the impact to make each part of battery produce the damage, the damage of battery can accumulate and increase along with the lapse of time, thereby causes the battery to damage, increases the risk of battery trouble, overcharge, overheated and conflagration.

Therefore, there is a need for an improvement in the frame structure of the electric bicycle in the prior art.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art and provide the frame structure of the electric bicycle, which reduces the damage probability of the battery and improves the safety of the electric bicycle by damping the battery.

In order to achieve the above purpose, the specific technical scheme of the frame structure of the electric bicycle of the utility model is as follows:

The utility model provides an electric bicycle frame structure, includes the frame main part, frame main part fixedly connected with battery case, the battery case includes box body and the lid of U-shaped groove structure are established the end cover at box body both ends, the box body with the end cover encloses and closes the open battery appearance chamber in formation top, the diapire and/or the lateral wall of box body are provided with elastic arch unit, the arch unit is the strip and follows box body length direction extends.

Preferably, in order to facilitate the convenience of the installation and maintenance of the battery box, the end covers are fixedly connected with the frame main body, and the box body is detachably connected between the two end covers.

Preferably, in order to improve the firmness of connection between the end cover and the box body, a U-shaped flange is arranged on the side surface, close to the box body, of the end cover, and the end part of the box body is in plug-in fit with the flange.

Preferably, in order to improve the firmness of connection between the box body and the frame main body, a reinforcing strip fixedly connected with the frame main body is arranged at the bottom of the box body.

Preferably, in order to promote the reinforcement effect of reinforcement strip to the box body, the reinforcement strip is U-shaped structure, the reinforcement strip with the lateral wall and the outer bottom wall of box body are all laminated.

Preferably, in order to improve the buffering and heat dissipation effects on the battery, the number of the arch units is plural, and each arch unit is arranged at equal intervals along the direction perpendicular to the extending direction of the arch unit.

Preferably, in order to promote the cushioning effect of arch unit, the arch unit includes the backup pad, both sides side of backup pad shown with all pass through circular arc section transitional coupling between the box body.

Preferably, in order to further improve the buffering and heat dissipation effects of the arch unit, the cross-sectional shape of the circular arc section is S-shaped.

Preferably, in order to improve the firmness of the overall structure of the box body, the box body and the arch unit are of an integrated structure.

The electric bicycle frame structure of the utility model has the following advantages: bending the box body of the battery box to form an arch unit, supporting the battery through the arch unit, and buffering the battery through deformation of the arch unit when the battery vibrates, so that the damage probability of the battery is reduced; the heat exchange area inside and outside the box body can be increased through the arch unit, so that the heat dissipation efficiency is improved, and the failure rate of the battery is further reduced.

Drawings

FIG. 1 is a schematic view of an electric bicycle frame of the present utility model;

fig. 2 is a schematic view of the structure of the battery case of the present utility model;

FIG. 3 is a schematic view of the structure of the end cap of the present utility model;

FIG. 4 is a schematic view of a structure of the case of the present utility model;

FIG. 5 is a schematic view of another structure of the case of the present utility model;

Fig. 6 is an enlarged view of a portion a of fig. 4;

The figure indicates: 1. a frame main body; 2. a battery case; 3. reinforcing strips; 21. an end cap; 22. a case body; 23. an arching unit; 211. a flange; 231. a support plate; 232. arc segments.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

The terms "top" and "bottom" are used with reference to the normal use of the electric bicycle frame, and are merely for convenience of description and to simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

The battery box for storing the battery is usually arranged on the electric bicycle frame main body, in the daily driving process of the electric bicycle, the battery and the battery box collide due to bumping of a road surface, impact is caused on the battery, each part of the battery is damaged, the damage of the battery can be accumulated and increased along with the time, so that the battery is damaged, and the risks of battery faults, overcharging, overheating and fire disaster are increased.

In order to solve the above problems, as shown in fig. 1 and 2, an electric bicycle frame structure comprises a frame main body 1, wherein the frame main body 1 is fixedly connected with a battery box 2, the battery box 2 comprises a box body 22 with a U-shaped groove structure and end covers 21 covered at two ends of the box body 22, the box body 22 and the end covers 21 enclose to form a battery containing cavity with an open top, an elastic arch unit 23 is arranged on the bottom wall and/or the side wall of the box body 22, and the arch unit 23 is strip-shaped and extends along the length direction of the box body 22.

The battery box 2 is formed by combining a box body 22 and two end covers 21, a battery is placed in the battery box 2, the arched units 23 on the bottom wall and the side walls of the box body 22 are abutted against the battery, when the battery vibrates, the battery extrudes the arched units 23 to deform, so that the arched units 23 play a role in buffering the battery, the impact force of the battery is reduced, the damage probability of the battery is reduced, and after the impact force of the battery is relieved, the arched units 23 are reset to continuously play a role in supporting and positioning the battery; the arch unit 23 is formed by bending the box body 22, so that the whole area of the box body 22 is increased, the internal and external heat exchange area of the box body 22 is increased, the heat dissipation speed of the box body 22 is further improved, the heat dissipation efficiency of a battery is effectively ensured, the temperature of the battery is reduced, and the failure rate of the battery is further reduced; meanwhile, the arch unit 23 can play a role of a reinforcing rib, prevent the box body 22 from bending and improve the strength of the box body 22.

As shown in fig. 2 and 3, the end caps 21 are fixedly connected with the frame body 1, and the box 22 is detachably connected between the two end caps 21. The two end covers 21 are welded on the frame main body 1, and the end parts of the box body 22 are fixedly connected with the end covers 21 through screws, so that the box body 22 is convenient to detach and the electric bicycle is convenient to maintain.

A further improvement is that the side of the case 22 adjacent to the end cap 21 is provided with a U-shaped flange 211 as shown in fig. 2 and 3, and the end of the case 22 is in a plug-in fit with the flange 211. The flange 211 partly surrounds the box body 22, and an opening is reserved at the top, so that the box body 22 can be taken out from the opening, the box body 22 can be limited with each other through the arrangement of the flange 211, the firmness between the box body 22 and the box body is improved, meanwhile, the waterproof effect of the end part of the box body 22 can be improved through partial wrapping of the flange 211, and the probability that water enters the box body 22 is reduced.

The connection mode between the box body 22 and the end cover 21 ensures that the arch unit 23 is not fixed with the end cover 21, so that the arch unit 23 can effectively deform to play a role in buffering.

As shown in fig. 1, the bottom of the box 22 is provided with a reinforcing strip 3 fixedly connected with the frame body 1. The middle part of the box body 22 can be supported from the bottom by the arrangement of the reinforcing strips 3, so that the box body 22 is prevented from bending or breaking due to the weight extrusion of the battery.

Further modified is that, as shown in fig. 1, the reinforcing strip 3 has a U-shaped structure, and the reinforcing strip 3 is attached to the outer side wall and the outer bottom wall of the case 22. The reinforcing strips 3 with the U-shaped structure can support the bottom surface and the side surfaces of the box body 22 from the outer side, so that the supporting effect on the box body 22 is improved. Thereby improving the stability of the cartridge 22.

As a further improvement, as shown in fig. 4 and 5, the arch units 23 are plural, and each arch unit 23 is arranged at equal intervals in a direction perpendicular to the extending direction thereof. Through the setting of a plurality of arch units 23, can promote the support cushioning effect to the battery to promote box body 22 radiating effect and intensity.

Further improved is that the arch unit 23 comprises a supporting plate 231, and two side edges of the supporting plate 231 are in transitional connection with the box body 22 through arc sections 232.

The arc section 232 is used for connecting the supporting plate 231 with the bottom plate of the box body 22, the supporting plate 231 is used for supporting the battery, the arc section 232 has elasticity, when being stressed, partial pressure is counteracted by self deformation, so that the buffer effect is achieved, the supporting plate 231 can be omitted, and the two arc sections 232 directly form the arch unit 23; the arc section 232 is formed after the box body 22 is bent, so that the supporting plate 231, the arc section 232 and the box body 22 are of an integrated structure, strip grooves are formed between two adjacent arch units and on the inner sides of the arch units, and air can circulate in the grooves so as to realize heat exchange between the inside and the outside of the box body 22.

When the structure works, under the static condition, the arc section 232 is in a compressed state, so that the arc section generates elastic force, and the elastic force pushes the supporting plate 231 to tightly lean against the battery, so that the supporting effect on the battery is realized; under the dynamic condition, the impact force of the battery acts on the supporting plate 231 to further deform the circular arc section 232, so that the impact of part of the battery is counteracted, the buffer effect on the battery is realized, and the failure rate of the battery is reduced; the heat exchange area of the box body 22 is increased by the bent arc section 232, the heat dissipation effect of the inner part and the outer part of the box body 22 is improved, and the formed groove can circulate air flow in the running process of the electric bicycle, so that the heat dissipation effect is further improved.

A further modification is that the cross-sectional shape of the circular arc segment 232 is S-shaped, as shown in fig. 6. The S-shaped arc section 232 can further increase the surface area, so that the heat exchange efficiency is improved, and the heat dissipation effect of the battery is further improved; meanwhile, when the S-shaped arc section 232 is pressed, two arc parts can deform, so that the elasticity is better, and the buffering effect on the battery can be improved.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides an electric bicycle frame structure, includes frame main part (1), frame main part (1) fixedly connected with battery case (2), its characterized in that:

The battery box (2) comprises a box body (22) with a U-shaped groove structure and end covers (21) arranged at two ends of the box body (22), the box body (22) and the end covers (21) are enclosed to form a battery containing cavity with an open top, an elastic arch unit (23) is arranged on the bottom wall and/or the side wall of the box body (22), and the arch unit (23) is strip-shaped and extends along the length direction of the box body (22).

2. The electric bicycle frame structure according to claim 1, characterized in that the end caps (21) are fixedly connected with the frame body (1), and the case (22) is detachably connected between the two end caps (21).

3. The electric bicycle frame structure according to claim 2, wherein the end cover (21) is provided with a U-shaped flange (211) adjacent to the side surface of the box body (22), and the end of the box body (22) is in plug-in fit with the flange (211).

4. A frame structure of an electric bicycle according to claim 3, characterized in that the bottom of the box (22) is provided with a reinforcing strip (3) fixedly connected with the frame body (1).

5. The electric bicycle frame structure according to claim 4, wherein the reinforcement strip (3) is of a U-shaped structure, and the reinforcement strip (3) is attached to both the outer side wall and the outer bottom wall of the case (22).

6. The electric bicycle frame structure according to any one of claims 1 to 5, wherein the arch units (23) are plural, and each of the arch units (23) is provided at equal intervals in a direction perpendicular to the extending direction thereof.

7. The electric bicycle frame structure according to claim 6, wherein the arch unit (23) comprises a support plate (231), and both side edges of the support plate (231) are in transitional connection with the box body (22) through arc sections (232).

8. The electric bicycle frame structure according to claim 7, characterized in that the arc section (232) has an S-shaped cross-sectional shape.

9. The electric bicycle frame structure according to claim 6, characterized in that the case (22) and the arch unit (23) are of an integrally formed structure.