CN220701276U

CN220701276U - Integrative frame of electric motor car

Info

Publication number: CN220701276U
Application number: CN202322332853.2U
Authority: CN
Inventors: 牟微升
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-04-02
Anticipated expiration: 2033-08-28

Abstract

This technical scheme belongs to electric motor car technical field, concretely relates to integrative frame of electric motor car, include: a frame body; a front bottom fork mounting part arranged at the front end of the frame body and used for mounting a front bottom fork of the electric vehicle; a rear bottom fork mounting part arranged at the rear end of the frame body and used for mounting a rear bottom fork of the electric vehicle; wherein, front bottom fork installation department, frame framework and back bottom fork installation department integrated into one piece, front bottom fork installation department, frame framework and back bottom fork installation department are formed through magnesium aluminum alloy casting, integrated into one piece has supporting part on the front bottom fork installation department, the frame framework is connected simultaneously to the supporting part for promote the joint strength between front bottom fork installation department and the frame framework, the frame framework includes left frame, right frame and preceding frame, and preceding frame backward extends and forms the backup pad, and left frame and right frame are connected simultaneously to the backup pad, are used for promoting the physical strength of frame framework front end.

Description

Integrative frame of electric motor car

Technical Field

The technical scheme relates to the technical field of electric vehicles, in particular to an electric vehicle integrated frame.

Background

The electric vehicle frame generally comprises a frame body, a front bottom fork bracket, a rear bottom fork bracket and the like, and is usually manufactured by fixing in a pipe welding mode, a screw mode, a glue mode and other connecting modes, namely, all parts of the electric vehicle frame are manufactured and assembled together in a mode of mainly welding.

Chinese patent CN212313780U discloses an electric vehicle frame, which has the following drawbacks:

1. the first frame body, the second frame body, the saddle support piece, the rear clothes rack, the first rear bottom fork, the second rear bottom fork and the five-way single-piece structure of the electric vehicle frame are of an integrated structure formed by die casting, but when the structures are spliced, glue, bolts or welding mode are still needed to be fixedly connected, so that the structural strength of the joint of the structures is lower, and the consistency of the electric vehicle frame is poor.

2. When the electric vehicle frame is assembled in a mode mainly of welding, assembly errors at welding positions are large.

Disclosure of Invention

The technical scheme aims to provide an electric vehicle integrated frame, which solves the problems of low structural strength and poor consistency of the electric vehicle frame in a welding connection mode by integrally casting and forming a front bottom fork installation part, a frame body and a rear bottom fork installation part of the electric vehicle frame.

The technical scheme aims at realizing the following steps:

an electric vehicle integrated frame comprising: a frame body; a front bottom fork mounting part arranged at the front end of the frame body and used for mounting a front bottom fork of the electric vehicle; a rear bottom fork mounting part arranged at the rear end of the frame body and used for mounting a rear bottom fork of the electric vehicle; wherein, front bottom fork installation department, frame framework and back bottom fork installation department are cast into one piece.

Preferably, the front bottom fork mounting part, the frame body and the rear bottom fork mounting part are cast by magnesium-aluminum alloy.

Preferably, the front bottom fork mounting part is integrally formed with a supporting part, and the supporting part is simultaneously connected with the frame body and used for improving the connection strength between the front bottom fork mounting part and the frame body.

Preferably, the frame body comprises a left frame, a right frame and a front frame, wherein the front frame extends backwards to form a supporting plate, and the supporting plate is simultaneously connected with the left frame and the right frame and used for improving the physical strength of the front end of the frame body.

Preferably, an arc-shaped protruding structure is formed on the supporting plate.

Preferably, the upper and lower edges of the frame body are outwards bent and extended to form a long groove I in cooperation with the frame body, and a plurality of mutually-intersected reinforcing ribs I are integrally formed in the long groove I.

Preferably, the upper and lower edges of the rear bottom fork installation part are outwards bent and extended, and are matched with the rear bottom fork installation part to form a second long groove, and a plurality of mutually-intersected reinforcing ribs are integrally formed in the second long groove.

Preferably, a second long groove is formed in the surface of the front bottom fork installation part, and a plurality of second reinforcing ribs which are mutually intersected are arranged in the second long groove.

Compared with the prior art, the technical scheme has the advantages that:

1. the front bottom fork installation part, the frame body and the rear bottom fork installation part which are designed by the technical scheme are integrally cast and formed, so that the front bottom fork installation part is high in physical strength and quick in forming, and is more suitable for assembly line production operation.

2. The supporting part of this technical scheme design has increased the thickness of front bottom fork installation department, connects front bottom fork installation department and frame framework simultaneously, and then has increased the joint strength between front bottom fork installation department and the frame framework.

3. The backup pad setting of this technical scheme design is at the front end of frame framework to trilateral butt frame framework, and then increased the physical strength of frame framework front end.

Drawings

Fig. 1 is a schematic structural diagram of the present technical solution.

Fig. 2 is a schematic structural diagram of the present solution.

Fig. 3 is a schematic structural diagram III of the present technical solution.

Reference numerals: 1. a frame body; 11. a support plate; 111. an arc-shaped protruding structure; 12. a left frame; 13. a right frame; 14. a front frame; 15. a first long groove; 16. a first reinforcing rib; 2. a front fork mounting portion; 21. a support part; 22. a long groove III; 23. reinforcing ribs III; 3. a rear fork mounting portion; 31. a second long groove; 32. a second reinforcing rib; 4. a main beam tube; 41. a head pipe; 42. a through hole; 43. a panel mounting bracket; 44. a battery mounting bracket; 45. a pedal mounting bracket; 46. a tail lamp mounting bracket; 47. the controller is provided with a bracket.

Detailed Description

The following describes the specific embodiments of the present technical solution in further detail with reference to the accompanying drawings.

An electric vehicle integrated frame comprising: a frame body 1; a front bottom fork mounting part 2 provided at the front end of the carriage frame 1 for mounting a front bottom fork of an electric vehicle; a rear bottom fork mounting part 3 provided at the rear end of the carriage frame 1 for mounting a rear bottom fork of an electric vehicle; the front bottom fork mounting part 2, the frame body 1 and the rear bottom fork mounting part 3 are integrally cast and formed, and the front bottom fork mounting part 2, the frame body 1 and the rear bottom fork mounting part 3 are cast through magnesium aluminum alloy. As shown in fig. 1-3, the electric vehicle frame is composed of a plurality of mounting parts, and mainly comprises a front bottom fork mounting part 2, a frame body 1 and a rear bottom fork mounting part 3, wherein the technical scheme is that the front bottom fork mounting part 2, the frame body 1 and the rear bottom fork mounting part 3 are integrally cast and formed through a die, namely, the front bottom fork mounting part 2, the frame body 1 and the rear bottom fork mounting part 3 do not need to be welded after being cast and formed respectively, and the electric vehicle frame obtained by the casting mode has the advantages of high strength and strong consistency, wherein the front bottom fork mounting part 2 comprises a main beam tube 4, and the main beam tube 4 is formed at the front end of the frame body 1; a head pipe 41 formed at the top of the main beam pipe 4 and having a through-hole 42 formed therein for mounting the front fork and the handle bar; a panel mounting bracket 43 formed on the surface of the head pipe 41 for mounting an instrument panel of the electric vehicle; the frame body 1 is also provided with a battery mounting bracket 44; a pedal mounting bracket 45 formed at the middle of the frame body 1 for mounting pedals; the tail lamp installing support 46 and the controller installing support 47 are formed at the top of the rear bottom fork installing part 3, and matched screw holes, installing holes and wiring holes are formed on all installing supports or at the side, so that the electric vehicle frame is integrally cast.

Preferably, integrated into one piece has supporting part 21 on the front fork installation department 2, frame framework 1 is connected simultaneously to supporting part 21 for promote the joint strength between front fork installation department 2 and the frame framework 1, frame framework 1 includes left frame 12, right frame 13 and preceding frame 14, preceding frame 14 backward extension forms backup pad 11, left frame 12 and right frame 13 are connected simultaneously to backup pad 11, are used for promoting the physical strength of frame framework 1 front end, the shaping has arc protruding structure 111 on the backup pad 11. As shown in fig. 1, since the girder pipe 4 needs to be demolded during production, a plurality of demolding grooves are formed in the girder pipe 4, resulting in thinner girder pipe 4, the supporting portion 21 is formed beside the girder pipe 4 and is connected with the frame body 1, the supporting portion 21 is used for increasing the thickness of the girder pipe 4 and is also used for improving the connection strength between the girder pipe 4 and the frame body 1, the frame body 1 is approximately a rectangular frame, the supporting plate 11 is simultaneously connected with the left frame 12, the right frame 13 and the front frame 14 of the frame body 1, the physical strength of the front end of the frame body 1 is increased, the arc-shaped protruding structure 111 can increase the physical strength of the supporting plate 11, and when the electric vehicle runs, the position where the frame of the electric vehicle is stressed is the connection position of the front bottom fork mounting portion 2 and the frame body 1, in order to ensure the running safety of the electric vehicle, the structural strength of the girder pipe 4 is required to be ensured, and the girder pipe 4 is designed and the frame body 1 is reinforced.

Preferably, the upper and lower edges of the frame body 1 are bent and extended outwards, and form a long groove I15 in cooperation with the frame body 1, and a plurality of mutually-intersected reinforcing ribs I16 are integrally formed in the long groove I15. As shown in fig. 2, the left frame 12 and the right frame 13 are respectively provided with a first long groove 15, a plurality of first reinforcing ribs 16 are uniformly formed in the first long groove 15, the first reinforcing ribs 16 are mutually crossed, the side walls of the first reinforcing ribs are integrally connected to the bottom of the first long groove 15, the upper end face and the lower end face of the first reinforcing ribs are integrally connected to the inner side wall of the first long groove 15, and meanwhile, the first reinforcing ribs 16 and the frame are integrally subjected to demolding and casting.

Preferably, the upper and lower edges of the rear bottom fork mounting portion 3 are bent and extended outwards, and are matched with the rear bottom fork mounting portion 3 to form a second long groove 31, a plurality of mutually-intersected reinforcing ribs 32 are integrally formed in the second long groove 31, a third long groove 22 is formed in the surface of the front bottom fork mounting portion 2, and a plurality of mutually-intersected reinforcing ribs three 23 are arranged in the third long groove 22. As shown in fig. 2, the second reinforcing rib 32 arranged in the rear bottom fork installation part 3 is basically the same as the first reinforcing rib 16 formed in the frame body 1 in a mode, and the only difference is that the second reinforcing rib 32 in the rear bottom fork installation part 3 is designed to be perpendicular to each other, because the frame body 1 is horizontally arranged, the rear bottom fork installation part 3 is obliquely arranged, when the first reinforcing rib 16 in the frame body 1 needs to have a certain included angle with a horizontal line, the uniform stress can be realized, and then the rear bottom fork installation part 3 only needs to bear the force in the vertical direction and the self direction when the electric vehicle runs, so that the second reinforcing rib 32 in the long groove of the rear bottom fork installation part 3 is arranged to be perpendicular to each other reasonably, the third long groove 22 is a groove generated when the frame is demolded, and the third reinforcing rib 23 which is perpendicular to each other is arranged in the groove, so that the physical strength of the structure in the main beam tube 4 can be ensured.

The foregoing shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of protection of the technical solution is defined by the appended claims and equivalents thereof.

Claims

1. An electric vehicle integrated frame, comprising:

a frame body (1);

a front bottom fork mounting part (2) which is arranged at the front end of the frame body (1) and is used for mounting a front bottom fork of the electric vehicle;

a rear bottom fork mounting part (3) which is arranged at the rear end of the frame body (1) and is used for mounting a rear bottom fork of the electric vehicle;

wherein, front bottom fork installation department (2), frame framework (1) and back bottom fork installation department (3) are cast into one piece and are moulded.

2. An electric vehicle integrated chassis according to claim 1, wherein: the front bottom fork mounting part (2), the frame body (1) and the rear bottom fork mounting part (3) are formed by casting magnesium aluminum alloy.

3. An electric vehicle integrated chassis according to claim 1, wherein: the front bottom fork mounting part (2) is integrally formed with a supporting part (21), and the supporting part (21) is simultaneously connected with the frame body (1) and is used for improving the connection strength between the front bottom fork mounting part (2) and the frame body (1).

4. An electric vehicle integrated chassis according to claim 1, wherein: the frame body (1) comprises a left frame (12), a right frame (13) and a front frame (14), wherein the front frame (14) extends backwards to form a supporting plate (11), and the supporting plate (11) is simultaneously connected with the left frame (12) and the right frame (13) and used for improving the physical strength of the front end of the frame body (1).

5. An electric vehicle integrated chassis according to claim 4, wherein: an arc-shaped protruding structure (111) is formed on the supporting plate (11).

6. An electric vehicle integrated chassis according to claim 1, wherein: the upper edge and the lower edge of the frame body (1) are outwards bent and extended, a long groove I (15) is formed by matching with the frame body (1), and a plurality of mutually-intersected reinforcing ribs I (16) are integrally formed in the long groove I (15).

7. An electric vehicle integrated chassis according to claim 1, wherein: the upper edge and the lower edge of the rear bottom fork installation part (3) are outwards bent and extended, the rear bottom fork installation part (3) is matched to form a second long groove (31), and a plurality of second reinforcing ribs (32) which are mutually intersected are integrally formed in the second long groove (31).

8. An electric vehicle integrated chassis according to claim 1, wherein: the surface of the front bottom fork installation part (2) is provided with a long groove III (22), and a plurality of reinforcing ribs III (23) which are mutually intersected are arranged in the long groove III (22).