CN205971486U - Electric automobile sub vehicle puts up structure - Google Patents

Abstract

The utility model discloses a sub-frame structure of an electric vehicle, which comprises a front sub-frame (1) and a rear sub-frame (2). The front sub-frame (1) and the rear sub-frame (2) The structural main bodies are all made of aluminum alloy profiles, and the aluminum alloy profiles are connected by welding or by threaded connectors. Adopting the above-mentioned technical scheme, it is made of hollow aluminum alloy profile, the overall weight is small, the strength is high, the safety performance of the structure is better, and the requirements for installation and connection are met; it is conducive to the lightweight of electric vehicles and can effectively extend the cruising range of electric vehicles.

Description

Electric vehicle sub-frame structure

technical field

The utility model belongs to the technical field of pure electric vehicle structure and relates to the structure of an electric vehicle body. More specifically, the utility model relates to a sub-frame structure of an electric vehicle.

Background technique

As a new energy vehicle, electric vehicles have the advantages of energy saving and environmental protection, especially pure electric vehicles are becoming more and more research hotspots in the automotive field. At present, the common problem in the field of electric vehicles is that the battery life of electric vehicles is limited, which limits the popularization and application of electric vehicles.

On the body of the aluminum alloy profile of the electric vehicle, the sub-frame plays an important role, on which it is required to install mechanical and power components, such as the lower swing arm, steering gear and other mechanical structures, as well as a large number of high-voltage electrical equipment, such as controllers , motor, etc. Therefore, extremely high requirements are put forward for the front and rear subframes, which require structural stability and reliable connection. At present, there is no corresponding technology that can meet the above requirements.

Utility model content

The utility model provides a sub-frame structure of an electric vehicle, the purpose of which is to make the sub-frame structure of an aluminum alloy profile meet the requirements for installation and connection.

In order to achieve the above object, the technical scheme that the utility model takes is:

The electric vehicle subframe structure of the utility model includes a front subframe and a rear subframe; the structural main bodies of the front subframe and the rear subframe all adopt aluminum alloy profiles, and the aluminum alloy profiles Connected by welding, or connected by threaded connectors.

The front subframe is provided with a front lap beam of the front subframe, a left and right longitudinal beam of the front subframe, and a rear lap beam of the front subframe which are welded and connected to each other.

A front lap vertical beam is respectively arranged on both ends of the front sub frame front lap cross beam, the front lap joint vertical beam is an aluminum alloy profile, and the upper end of the front lap joint vertical beam is threaded The casing and fastening bolts are tightly connected with the front longitudinal beam; the rear lap crossbeam of the front subframe is fastened with the lower crossbeam of the front baffle through the threaded casing and fastening bolts.

The left and right longitudinal beams of the front sub-frame are provided with lower swing arm mounting brackets, and the lower swing arm mounting brackets are fastened to the left and right longitudinal beams of the front sub-frame through threaded sleeves and fastening bolts.

The front sub-frame is provided with a steering gear mounting beam, and the steering gear mounting beam is an aluminum alloy profile; both ends of the steering gear mounting beam are welded to the left and right longitudinal beams of the front sub-frame.

The rear sub-frame is provided with the front lap beam of the rear sub-frame, the left and right longitudinal beams of the rear sub-frame, the installation beam of the rear sub-frame, and the rear lap beam of the rear sub-frame; The frame lap crossbeam is supported on the rear sub-frame installation crossbeam by the lap crossbeam support beam; the lap joint crossbeam support beam is an aluminum alloy profile.

The front lap beam of the rear sub-frame is tightly connected to the sill beam through threaded sleeves and fastening bolts; the rear lap beam of the rear sub-frame is connected to the rear floor through threaded sleeves and fastening bolts The rear cross member is fastened and connected.

The left and right longitudinal beams of the rear sub-frame are provided with lower swing arm mounting brackets, and the lower swing arm mounting brackets are fastened to the left and right longitudinal beams of the rear sub-frame through threaded sleeves and fastening bolts.

The rear sub-frame is equipped with a high-voltage line support plate, and the high-voltage line support plate is an aluminum alloy profile; The vehicle frame is installed with cross beams for fastening connection.

A support frame for a high-voltage distribution box is arranged on the overlapping beam support beam.

The utility model adopts the above-mentioned technical scheme and is made of hollow aluminum alloy profiles. The overall weight is small, the strength is high, the safety performance of the structure is better, and the requirements for installation and connection are met; it is conducive to the lightweight of electric vehicles and can effectively extend the battery life of electric vehicles mileage.

Description of drawings

A brief description of the content shown in the drawings and the marks in the drawings is as follows:

Fig. 1 is the structural front view schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of the connection structure between the front subframe and the front longitudinal beam of the present invention;

Fig. 3 is the axonometric schematic diagram of the front auxiliary frame structure of the utility model;

Fig. 4 is a schematic structural diagram of the rear sub-frame of the present invention.

Labeled in the figure:

1. Front subframe, 2. Rear subframe, 3. Front longitudinal beam, 4. Front lap beam of front subframe, 5. Left and right longitudinal beams of front subframe, 6. Front lap vertical beam, 7 . Front sub-frame rear lap beam, 8. Lower swing arm mounting bracket, 9. Steering gear installation beam, 10. Rear sub-frame front lap beam, 11. Rear sub-frame left and right longitudinal beams, 12. Rear sub-frame 13, the lap beam support beam, 14, the rear sub-frame installation beam, 15, the lower swing arm mounting bracket, 16, the high-voltage line support plate, 17, the high-voltage distribution box support frame.

detailed description

Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the utility model will be further described in detail, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the utility model .

The structure of the utility model as shown in Figure 1 is a subframe structure of an electric vehicle, including a front subframe 1 and a rear subframe 2.

In order to overcome the defects of the prior art and realize the purpose of the invention that the sub-frame structure of the aluminum alloy profile meets the installation and connection requirements, the technical proposal adopted by the utility model is as follows:

As shown in Figures 1 to 4, in the electric vehicle subframe structure of the present utility model, the structural main bodies of the front subframe 1 and the rear subframe 2 all adopt aluminum alloy profiles, and the aluminum alloy profiles Connected by welding, or connected by threaded connectors.

Adopting the above-mentioned technical scheme, it is made of hollow aluminum alloy profile, the overall weight is small, the strength is high, the safety performance of the structure is better, and the requirements for installation and connection are met; it is conducive to the lightweight of electric vehicles and can effectively extend the cruising range of electric vehicles.

As shown in Figure 2 and Figure 3:

The front subframe 1 is provided with a front lap beam 4 of the front subframe, a left and right longitudinal beam 5 of the front subframe, and a rear lap beam 7 of the front subframe which are welded and connected to each other.

The front lap beam 4 of the front subframe, the left and right longitudinal beams 5 of the front subframe, and the rear lap beam 7 of the front subframe form a frame structure through welding, and its overall strength is greatly improved.

A front lap vertical beam 6 is respectively arranged on the two ends of the front lap cross beam 4 of the front sub-frame, and the front lap vertical beam 6 is an aluminum alloy profile, and the front lap vertical beam 6 The upper end of the upper end is fastened to the front longitudinal beam 3 through a threaded sleeve and fastening bolts; the rear lap beam 7 of the front subframe is fastened to the lower crossbeam of the front baffle through a threaded sleeve and fastening bolts .

The fastening bolt is made of steel; the threaded sleeve is made of aluminum; its connection strength is higher. By adopting the above-mentioned technical scheme, the overall installation and fixing requirements of the front sub-frame 1 are realized, and the connection thereof is more stable and firm.

The left and right longitudinal beams 5 of the front sub-frame are provided with lower swing arm mounting brackets 8, and the lower swing arm mounting brackets 8 are fastened to the left and right longitudinal beams 5 of the front sub-frame through threaded sleeves and fastening bolts. connect.

As can be seen in the figure, four lower swing arm mounting brackets 8 are arranged on the front sub-frame 1 in total, which meets the requirements of the whole vehicle for installing the lower swing arm.

Said front sub-frame 1 is provided with a steering gear mounting crossbeam 9, said steering gear mounting crossbeam 9 is an aluminum alloy profile; Beam 5 welded connection.

This structural arrangement meets the requirements of the vehicle for the steering mechanism.

As shown in Figure 4:

The rear subframe 2 is provided with a front lap beam 10 of the rear subframe, a left and right longitudinal beam 11 of the rear subframe, a mounting beam 14 of the rear subframe, and a rear lap beam 12 of the rear subframe which are welded and connected to each other; The rear sub-frame lap beam 12 is supported on the rear sub-frame installation beam 14 through the lap beam support beam 13; the lap beam support beam 13 is an aluminum alloy profile.

The front lap beam 10 of the rear subframe, the left and right longitudinal beams 11 of the rear subframe, the installation beam 14 of the rear subframe, the rear lap beam 12 of the rear subframe and the support beam 13 of the lap beam are welded to form a The overall frame structure greatly improves its overall strength.

The front lap beam 10 of the rear subframe is tightly connected with the threshold beam through a threaded sleeve and fastening bolts; the rear lap beam 12 of the rear subframe is connected with the Fasten the connection of the rear crossbeam of the rear floor.

By adopting the above-mentioned technical scheme, the overall installation and fixing requirements of the rear sub-frame 2 are realized, and the connection thereof is more stable and firm.

The left and right longitudinal beams 11 of the rear subframe are provided with lower swing arm mounting brackets 15, and the lower swing arm mounting brackets 15 are fastened to the left and right longitudinal beams 11 of the rear subframe through threaded sleeves and fastening bolts. connect.

As can be seen in the figure, four lower swing arm mounting brackets 8 are arranged on the rear subframe 2 in total, which meets the requirements of the whole vehicle for installing the lower swing arm.

The rear sub-frame 2 is provided with a high-voltage line support plate 16, and the high-voltage line support plate 16 is an aluminum alloy plate; the two ends of the high-voltage line support plate 16 are respectively overlapped with the front of the rear sub-frame by welding The crossbeam 10 is fastened to the rear subframe installation crossbeam 14 .

A support frame 17 for a high-voltage power distribution box is provided on the overlapping beam support beam 13 .

Mounting brackets for motor controllers, motors, etc. are arranged on the rear sub-frame. The above structure meets the needs of the electric vehicle for the motor and its control, and realizes safe, efficient and stable power supply.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model.

Claims (10)

1. Electric vehicle subframe structure, comprising front subframe (1) and rear subframe (2), characterized in that: the structure of the front subframe (1) and rear subframe (2) The main body is made of aluminum alloy profiles, and the aluminum alloy profiles are connected by welding or by threaded connectors. 2. According to the electric vehicle subframe structure according to claim 1, it is characterized in that: the front subframe (1) is provided with a front lap beam (4) of the front subframe welded and connected to each other, a front subframe Frame the left and right longitudinal beams (5), the front sub-frame and the rear overlapping beam (7). 3. According to the electric vehicle sub-frame structure according to claim 2, it is characterized in that: a front lap vertical beam (6) is respectively arranged on both ends of the front sub-frame front lap beam (4) , the front lap vertical beam (6) is an aluminum alloy profile, and the upper end of the front lap vertical beam (6) is fastened to the front longitudinal beam (3) through a threaded sleeve and fastening bolts; The rear overlapping crossbeam (7) of the front subframe is fastened and connected with the lower crossbeam of the front baffle through threaded sleeves and fastening bolts. 4. The electric vehicle sub-frame structure according to claim 2, characterized in that: the left and right longitudinal beams (5) of the front sub-frame are provided with lower swing arm mounting brackets (8), and the lower swing arm mounting brackets (8) Fasten and connect with the left and right longitudinal beams (5) of the front sub-frame through threaded sleeves and fastening bolts. 5. The electric vehicle sub-frame structure according to claim 2, characterized in that: said front sub-frame (1) is provided with a steering gear installation beam (9), and said steering gear installation beam (9) It is an aluminum alloy profile; the two ends of the steering gear mounting beam (9) are welded to the left and right longitudinal beams (5) of the front sub-frame. 6. According to the electric vehicle subframe structure according to claim 1, it is characterized in that: said rear subframe (2) is provided with a rear subframe front lap beam (10) which is welded and connected to each other, a rear subframe Frame left and right longitudinal beams (11), rear subframe installation crossbeams (14), rear subframe lap joint crossbeams (12); 13) Supported on the rear sub-frame installation beam (14); the overlapping beam support beam (13) is an aluminum alloy profile. 7. The electric vehicle sub-frame structure according to claim 6, characterized in that: the front lap beam (10) of the rear sub-frame is fastened to the threshold beam through threaded sleeves and fastening bolts; The rear lap crossbeam (12) of the rear subframe is tightly connected with the rear floor rear crossbeam through threaded sleeves and fastening bolts. 8. According to the electric vehicle sub-frame structure according to claim 6, it is characterized in that: the left and right longitudinal beams (11) of the rear sub-frame are provided with lower swing arm mounting brackets (15), and the lower swing arm mounting brackets (15) Fasten and connect with the left and right longitudinal beams (11) of the rear sub-frame through threaded sleeves and fastening bolts. 9. The electric vehicle sub-frame structure according to claim 6, characterized in that: the rear sub-frame (2) is provided with a high-voltage line support plate (16), and the high-voltage line support plate (16) is an aluminum alloy plate; the two ends of the high voltage line support plate (16) are respectively fastened and connected to the front lap beam (10) of the rear subframe and the installation beam (14) of the rear subframe by welding. 10. The sub-frame structure of an electric vehicle according to claim 6, characterized in that: a high-voltage power distribution box support frame (17) is arranged on the overlapping beam support beam (13).