Electric vehicle frame with protective structure

Abstract

The utility model discloses an electric vehicle frame with a protective structure, which belongs to the technical field of electric vehicles, and is characterized in that the electric vehicle frame comprises a frame main body and a battery box, the battery box is arranged on the frame main body, the protective structure comprises a protective shell and a protective plate, the protective shell is detachably connected with the frame main body, and the protective plate is arranged on the protective shell. The protective shell is located below the battery box, the protective shell covers the outer side of the battery box, the protective shell and the battery box are arranged in a spaced mode, the bottom of the protective shell is movably connected with the protective plate through a damping assembly, the protective plate is detachably connected with the protective shell, and the protective plate is located below the protective shell; the protection structure on the electric vehicle frame can provide reliable protection for the battery box, and the risk that the battery box and batteries in the battery box are damaged due to collision is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric motor car technical field, especially related to a kind of electric motor car frame with protective structure. BACKGROUND

[0002] At present, with the rapid development of electric motor car industry, electric motor car as a kind of traffic tool has gradually entered people's daily life, and electric motor car is formed by multiple components, and electric motor car frame belongs to one of many components, to guarantee the quality of electric motor car, the design and manufacture of electric motor car frame are also constantly improved.

[0003] The Chinese patent with publication number CN216153945U discloses a high-safety electric motor car frame side beam structure, which comprises a main beam pipe and a rear connecting reinforcing plate. The main beam pipe is provided with a bottom support pipe near both sides of the front connecting reinforcing plate. The middle part of the bottom support pipe is connected with a middle connecting reinforcing plate, and the inner wall of the middle connecting reinforcing plate is tightly attached to the inner wall of the bottom support pipe. A stabilizing structure is further arranged above the middle part of the bottom support pipe on both sides, and the two ends of the stabilizing structure are respectively connected and fixed to the bottom support pipes on both sides. The stabilizing structure comprises a first segment, a second segment and a third segment connected in sequence. The first segment, the second segment and the third segment form a U-shaped structure with concave sides and a horizontal middle part.

[0004] The above technical solution has the following defects: the battery box in the electric motor car frame is located at the bottom. When the vehicle is running on complex road conditions such as uneven road, gravel or protruding obstacles, the battery box is easily directly and violently collided with various obstacles on the ground, or subjected to continuous scratching and friction, resulting in different degrees of damage to the surface of the battery box, such as scratches, depressions, etc. More seriously, under the continuous strong impact force, the structure of the battery box may be deformed, and the closely arranged batteries inside the battery box will directly exert uneven external force on the batteries, causing the batteries to vibrate or be squeezed and deformed, even in extreme cases, causing short circuit, leakage or even fire, posing a great threat to the life and property safety of the rider. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems existing in the prior art, and provides an electric motor car frame with protective structure. The technical problem to be solved by the utility model is how to improve the protection of the battery box.

[0006] The above technical purposes of the electric vehicle frame with the protection structure can be realized by the following technical scheme: an electric vehicle frame with a protection structure, the battery box is arranged on the frame body, the electric vehicle frame comprises a frame body and a battery box, the protection structure comprises a protection shell and a protection plate, the protection shell is detachably connected with the frame body, the protection shell is located below the battery box, and the protection shell is arranged on the outer side of the battery box, the protection shell and the battery box are spaced apart, the bottom of the protection shell is movably connected with the protection plate through a damping assembly, and the protection plate is detachably connected with the protection shell, and the protection plate is located below the protection shell.

[0007] In the electric vehicle frame with the protection structure, the damping assembly comprises a plurality of ball head seats one, a plurality of ball head seats two, a plurality of first ball heads, a plurality of second ball heads and a plurality of springs, the plurality of ball head seats one are connected with the bottom of the protection shell, the plurality of ball head seats two are connected with the protection plate, the plurality of first ball heads are rotatably arranged in the corresponding ball head seats one, the plurality of second ball heads are rotatably arranged in the corresponding ball head seats two, and the plurality of first ball heads and the plurality of second ball heads are connected through the corresponding springs.

[0008] In the electric vehicle frame with the protection structure, the plurality of ball head seats one are threadedly connected with the protection shell, and the plurality of ball head seats two are threadedly connected with the protection plate.

[0009] In the electric vehicle frame with the protection structure, the bottom of the protection shell is provided with a plurality of damping bodies, and the plurality of damping bodies are made of rubber material.

[0010] In the electric vehicle frame with the protection structure, the plurality of damping bodies are in the shape of a circular truncated cone, and the diameter gradually decreases from one end close to the protection shell to the other end close to the protection plate.

[0011] In the electric vehicle frame with the protection structure, both sides of the protection shell are integrally provided with hanging ears, the frame body comprises a support pipe, and the hanging ears are hung on the corresponding support pipes.

[0012] In the electric vehicle frame with the protection structure, the hanging ears and the support pipes are connected through bolts.

[0013] In the above-mentioned electric vehicle frame with a protective structure, the contact surface of the support tube relative to the hanging ear is provided with a serrated structure, and the contact surface of the hanging ear and the support tube is provided with a serrated groove structure corresponding to and adapted to the serrated structure. When the hanging ear is hung on the support tube, the serrated structure is inserted into the serrated groove structure.

[0014] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0015] A protective shell is installed on the outside of the battery box, and the protective shell is located below the battery box. At the same time, the bottom of the protective shell is movably connected to a protective plate via a shock-absorbing component. The protective plate is located below the protective shell. The protective shell and the protective plate work together to protect the battery box, preventing various obstacles on the ground from directly colliding with the battery box. Moreover, when the electric vehicle is in dynamic driving conditions and the protective plate collides with various obstacles on the ground with a strong impact, the shock-absorbing component can form a buffer effect because the protective plate is movably connected to the bottom of the protective shell. This effectively absorbs and disperses the impact force generated by the impact. The battery box is mounted on the main body of the vehicle frame, and the protective shell and the battery box are spaced apart to prevent the impact force from acting directly on the battery box, thus providing reliable protection for the battery box and reducing the risk of damage to the battery box and its internal batteries due to collisions. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the structure of an embodiment;

[0017] Fig. 2 This is a partial structural schematic diagram of an embodiment;

[0018] Fig. 3 This is a schematic diagram of the battery box structure in an embodiment.

[0019] Reference numerals: 1. Frame body; 2. Battery box; 3. Protective shell; 4. Shock absorber assembly; 41. Ball joint seat one; 42. Ball joint seat two; 43. First ball joint; 44. Second ball joint; 45. Spring; 5. Protective plate; 6. Shock absorber; 7. Hanger; 8. Support tube; 9. Bolt. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] An electric vehicle frame with a protective structure, such as Figs. 1 to 3 As shown, the electric vehicle frame includes a frame body 1 and a battery box 2, with the battery box 2 mounted on the frame body 1.

[0022] The protection structure comprises a protection shell 3 and a protection plate 5, the protection shell 3 is located below the battery box 2, and the protection shell 3 covers the outside of the battery box 2, the protection shell 3 is arranged in a spaced manner with the battery box 2, and the protection shell 3 forms protection for the battery box 2, so that the battery box 2 is prevented from being directly collided with obstacles.

[0023] The protection shell 3 is detachably connected with the frame body 1, and the protection shell 3 can be disassembled, so that maintenance is facilitated in the later period.

[0024] The protection shell 3 is integrally provided with an ear 7 on each side, and the frame body 1 comprises a support pipe 8, the ear 7 is hung on the corresponding support pipe 8, and the ear 7 is connected with the support pipe 8 through a bolt 9; the ear 7 and the support pipe 8 are stably connected through the bolt 9, and can be detachably connected.

[0025] It should be noted that, since the ear 7 is hung on the support pipe 8 and supported by the support pipe 8, when the protection shell 3 is disassembled, an operator does not need to additionally apply an external force to support the protection shell 3, and the operation is more convenient and labor-saving.

[0026] Further, the support pipe 8 is provided with a sawtooth structure on a contact surface relative to the ear 7, and the ear 7 and the support pipe 8 are both provided with a sawtooth groove structure corresponding to and adapted to the sawtooth structure; when the ear 7 is hung on the support pipe 8, the sawtooth structure is inserted into the sawtooth groove structure, and the relative stability of the ear 7 and the support pipe 8 is ensured through the cooperation of the sawtooth groove structure and the sawtooth structure, so that the installation position is facilitated to be determined, the ear 7 and the support pipe 8 are connected through the bolt 9, and the installation efficiency of the protection shell 3 is improved.

[0027] The bottom of the protection shell 3 is movably connected with the protection plate 5 through a damping assembly 4, and the protection plate 5 is located below the protection shell 3.

[0028] In the embodiment, the damping assembly 4 comprises a plurality of ball head seats one 41, a plurality of ball head seats two 42, a plurality of first ball heads 43, a plurality of second ball heads 44, and a plurality of springs 45; the plurality of ball head seats one 41 are connected with the bottom of the protection shell 3, the plurality of ball head seats two 42 are connected with the protection plate 5, the plurality of first ball heads 43 are respectively rotationally arranged in the corresponding ball head seats one 41, the plurality of second ball heads 44 are respectively rotationally arranged in the corresponding ball head seats two 42, and the plurality of first ball heads 43 and the plurality of second ball heads 44 are connected through the corresponding springs 45.

[0029] Since the first ball head 43 and the second ball head 44 can rotate relative to the ball head seat one 41 and the ball head seat two 42 respectively, and the first ball head 43 and the second ball head 44 are connected through the spring 45, when the electric vehicle is in a dynamic driving condition and the protective plate 5 collides with the ground and various obstacles with strong impact, not only effective buffering can be formed, but also adaptive buffering effect in the corresponding direction can be provided according to the stress direction when the collision occurs, so as to adapt to the complex situation in the dynamic driving process of the electric vehicle.

[0030] The protective plate 5 and the protective shell 3 are detachably connected, that is, the protective plate 5 can be disassembled and replaced, which is convenient for later maintenance. Specifically, the plurality of ball head seats one 41 are threadedly connected with the protective shell 3, and the plurality of ball head seats two 42 are threadedly connected with the protective plate 5, that is, by rotating the ball head seat one 41 to release the connection with the protective plate 5, the protective plate 5 can be disassembled, which is simple in operation and convenient in disassembly.

[0031] The bottom of the protective shell 3 is provided with a plurality of shock absorbers 6, the plurality of shock absorbers 6 are all made of rubber material, the plurality of shock absorbers 6 are all in the shape of a circular truncated cone, and the diameter thereof gradually decreases from one end close to the protective shell 3 to one end close to the protective plate 5, so as to avoid direct collision between the protective plate 5 and the protective shell 3 in extreme cases, and the shock absorbers 6 made of rubber material are used for shock absorption, and the shock absorbers 6 in the shape of a circular truncated cone can more effectively disperse the collision energy and optimize the shock absorption performance.

[0032] The specific embodiments described in the present application are only illustrative of the spirit of the present application; those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. An electric vehicle frame with a protective structure, the electric vehicle frame comprising a frame body (1) and a battery box (2), the battery box (2) being disposed on the frame body (1), characterized in that: The protective structure includes a protective shell (3) and a protective plate (5). The protective shell (3) is detachably connected to the vehicle frame body (1). The protective shell (3) is located below the battery box (2) and covers the outside of the battery box (2). The protective shell (3) and the battery box (2) are spaced apart. The bottom of the protective shell (3) is movably connected to the protective plate (5) through a shock-absorbing component (4). The protective plate (5) is detachably connected to the protective shell (3) and is located below the protective shell (3).

2. The electric vehicle frame with a protective structure according to claim 1, characterized in that: The shock absorption assembly (4) includes several ball joints (41), several ball joints (42), several first ball joints (43), several second ball joints (44), and several springs (45). Several ball joints (41) are connected to the bottom of the protective shell (3), several ball joints (42) are connected to the protective plate (5), several first ball joints (43) are rotatably disposed in their respective ball joints (41), several second ball joints (44) are rotatably disposed in their respective ball joints (42), and several first ball joints (43) and several second ball joints (44) are connected by their respective springs (45).

3. The electric vehicle frame with a protective structure according to claim 2, characterized in that: Several ball head seats (41) are threadedly connected to the protective shell (3), and several ball head seats (42) are threadedly connected to the protective plate (5).

4. An electric vehicle frame with a protective structure according to any one of claims 1, 2, or 3, characterized in that: The bottom of the protective shell (3) is provided with several shock absorbers (6), and all of the shock absorbers (6) are made of rubber.

5. The electric vehicle frame with a protective structure according to claim 4, characterized in that: Several of the shock absorbers (6) are frustum-shaped, and their diameter gradually decreases from one end near the protective shell (3) to the other end near the protective plate (5).

6. An electric vehicle frame with a protective structure according to any one of claims 1, 2, or 3, characterized in that: The protective shell (3) has a hanging ear (7) integrally provided on both sides. The frame body (1) includes a support tube (8). The hanging ear (7) is hung on the corresponding support tube (8).

7. The electric vehicle frame with a protective structure according to claim 6, characterized in that: The hanging ear (7) is connected to the support tube (8) by bolts (9).

8. The electric vehicle frame with a protective structure according to claim 7, characterized in that: The support tube (8) has a serrated structure on the contact surface with the hanging ear (7). The hanging ear (7) and the support tube (8) are both provided with a serrated groove structure that corresponds to and matches the serrated structure. When the hanging ear (7) is hung on the support tube (8), the serrated structure is inserted into the serrated groove structure.

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