Lightweight frame structure of electric vehicle

Abstract

The utility model belongs to the technical field of frame structures, and particularly relates to a light-weight frame structure of an electric vehicle. The bicycle frame structure comprises a main frame piece, a front supporting beam, a first rear supporting beam and a second rear supporting beam are arranged in the main frame piece, a lead frame and an arch-shaped frame are arranged in the main frame piece, and meanwhile a steering supporting frame, a seat frame and a rear bearing frame are arranged above the main frame piece. According to the vehicle frame assembly, all the units can be fixedly connected to the chassis part in a fastened mode, so that the overall structural strength of the vehicle frame assembly can be improved, the structural strength of the connecting positions of all the vehicle frame units can change slowly, in other words, gentle rigidity transition of the connecting positions of all the vehicle frame units can be achieved, and then the overall structural strength of the vehicle frame assembly can be enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle frame structures and relates to a lightweight vehicle frame structure for an electric vehicle. Background Art

[0002] The vehicle frame, also known as the beam, is the base of the vehicle and is generally composed of two longitudinal beams and several transverse beams. It is supported on the wheels via the suspension device, the front axle, and the rear axle. It has sufficient strength and rigidity to withstand the load of the vehicle and the impact from the wheels. The quality of the frame design and structure should first be clearly understood by the various forces that the frame has to withstand when the vehicle is driving. In the prior art, in order to facilitate the production of the frame or achieve the universalization of the frame, the frame is usually divided into multiple sections, and the two adjacent frame sections are fixedly connected by fasteners. However, with the above structure, the structural strength of the connection between the frame sections is low, and the rigidity of the connection between the frame sections is much lower than the rigidity of the frame body, resulting in a low structural strength of the entire frame. Therefore, in response to the above problems, a lightweight frame structure for electric vehicles is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a lightweight frame structure for an electric vehicle in order to solve the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lightweight frame structure for an electric vehicle comprises a main frame, a steering support frame is provided in the middle portion above the front end of the main frame, a front support beam and a wire frame are respectively provided between the lower portion of the front end of the main frame, an arch frame and a first rear support beam are respectively provided between the lower portion of the rear end of the main frame, and a second rear support beam is provided between the upper portion of the rear end of the main frame, and at the same time, a first reinforcing rib and a second reinforcing rib are respectively provided in the bend of the rear end of the main frame, a support plate is provided between the first rear support beam and the second rear support beam, a seat frame is provided above the rear end of the main frame, a rear load-bearing frame is provided at the rear end of the main frame, and a lower support leg is provided below the main frame.

[0006] In the above-mentioned lightweight frame structure of the electric vehicle, the front section of the main frame is bent upward, and the upper middle part of the bent front section of the main frame is provided with a steering support frame at the lower middle part. The front support beam and the wire rack are fixedly connected between the lower horizontal sections of the front part of the main frame, and there is a distance between the front support beam and the wire rack. At the same time, the front support beam is placed in front of the wire rack.

[0007] In the above-mentioned lightweight frame structure of the electric vehicle, the middle part of the main frame is fixedly connected to the bottom of the seat frame, and the upper rear end of the main frame is fixedly connected to one side above the seat frame, while the other side above the seat frame is higher than the upper rear end of the main frame.

[0008] In the above-mentioned lightweight frame structure of the electric vehicle, the arch frame is fixedly connected between the middle parts of the main frame members, and the upper part of the arch frame is higher than the upper part of the middle part of the main frame members. At the same time, the arch frame is placed below the seat frame.

[0009] In the above-mentioned lightweight frame structure of the electric vehicle, the rear section of the main frame is bent upward, and the first rear support beam is fixedly connected between the bent parts of the rear section of the main frame, and there is a distance between the first rear support beam and the arch frame.

[0010] In the above-mentioned lightweight frame structure of the electric vehicle, the second rear support beam is fixedly connected between the vertical upper part of the rear section of the main frame, and the rear load-bearing frame is fixedly connected to the outside of the vertical upper part of the rear section of the main frame, and the inner side of the rear load-bearing frame is placed above the second rear support beam.

[0011] In the above-mentioned lightweight frame structure of the electric vehicle, a support plate is fixedly connected between the first rear support beam and the second rear support beam, and screw holes are provided in the support plate.

[0012] In the above-mentioned lightweight frame structure of the electric vehicle, the bent parts below the rear section of the main frame are fixedly connected to the first reinforcing ribs, and the two first reinforcing ribs are symmetrical.

[0013] In the above-mentioned lightweight frame structure of the electric vehicle, the upper bends of the rear section of the main frame are fixedly connected to the second reinforcing ribs, and the two second reinforcing ribs are symmetrical. At the same time, the second reinforcing ribs are located below the second rear support beam and the rear load-bearing frame.

[0014] In the above-mentioned lightweight frame structure of the electric vehicle, the lower middle portion of the main frame is fixedly connected to the lower support legs, and the two lower support legs are symmetrical. At the same time, the lower support legs are located between the wire rack and the arch frame.

[0015] Compared with the existing technology, the advantages of this utility model are:

[0016] The utility model provides a front support beam, a first rear support beam and a second rear support beam in the main frame, and provides a wire rack and an arch frame between the main frame. At the same time, a steering support frame, a seat frame and a rear load-bearing frame are provided above the main frame. By adopting this frame structure, each unit can be firmly connected to the chassis member, thereby improving the overall structural strength of the frame assembly and slowly changing the structural strength of the connection between each frame unit, that is, achieving a smooth transition of the stiffness of the connection between each frame unit, thereby enhancing the overall structural strength of the frame assembly.

[0017] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 It is a schematic side view of the entirety of the present invention;

[0020] Figure 3 It is an overall top view schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall left side view of the utility model;

[0022] Figure 5 It is an overall right side schematic diagram of the present utility model.

[0023] In the figure: 1. main frame; 2. front support beam; 3. first rear support beam; 4. second rear support beam; 5. seat frame; 6. arch frame; 7. first reinforcement rib; 8. second reinforcement rib; 9. wire frame; 10. steering support frame; 11. rear load-bearing frame; 12. support plate; 13. lower support leg. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, a lightweight frame structure of an electric vehicle includes a main frame 1, a steering support frame 10 is provided in the middle part above the front end of the main frame 1, and a front support beam 2 and a wire frame 9 are respectively provided between the lower part of the front end of the main frame 1, an arch frame 6 and a first rear support beam 3 are respectively provided between the lower part of the rear end of the main frame 1, and a second rear support beam 4 is provided between the upper part of the rear end of the main frame 1, and at the same time, a first reinforcing rib 7 and a second reinforcing rib 8 are respectively provided in the bend of the rear end of the main frame 1, a support plate 12 is provided between the first rear support beam 3 and the second rear support beam 4, a seat frame 5 is provided above the rear end of the main frame 1, and a rear load-bearing frame 11 is provided at the rear end of the main frame 1, and a lower support leg 13 is provided below the main frame 1.

[0026] The front section of the main frame 1 is bent upward, and the middle part of the upper part of the bent front section of the main frame 1 is covered with the middle part of the lower part of the steering support frame 10. The front support beam 2 and the wire rack 9 are fixedly connected between the lower horizontal sections of the front part of the main frame 1, and there is a distance between the front support beam 2 and the wire rack 9. At the same time, the front support beam 2 is placed in front of the wire rack 9.

[0027] The front section of the main frame 1 is curved upward, so that the vertically upward section of the main frame 1 supports the front part of the frame, and a steering support frame 10 is provided above this vertically upward section, and the steering support frame 10 will be installed with a handle for rotating the electric vehicle. In this way, the vertical section of the front section of the main frame 1 plays a supporting role in the structure of the rotating handle. The front support beam 2 provided between the lower part of the front section of the main frame 1 is used to position and stabilize the lower part of the main frame 1, so that the two main beams of the main frame 1 are not easily deformed. At the same time, the wire rack 9 provided in the front section of the main frame 1 can not only route wires, but also strengthen the stability of the main frame 1.

[0028] Furthermore, the middle portion of the main frame 1 is fixedly connected to the bottom of the seat frame 5 , and the upper portion of the rear end of the main frame 1 is fixedly connected to one side of the upper portion of the seat frame 5 , while the other side of the upper portion of the seat frame 5 is higher than the upper portion of the rear end of the main frame 1 .

[0029] The seat frame 5 provided above the main frame 1 is connected to the main frame 1 at the top and bottom, so that the load-bearing capacity of the seat frame 5 is increased, and the force borne by the seat frame 5 is transmitted to the main frame 1.

[0030] Furthermore, an arch frame 6 is fixedly connected between the middle parts of the main frame members 1, and the upper part of the arch frame 6 is higher than the upper part of the middle part of the main frame members 1, and the arch frame 6 is placed below the seat frame 5.

[0031] The arch frame 6 provided in the middle of the main frame member 1 has a special shape and cooperates with the wire frame 9 to stabilize the middle section of the main frame member 1.

[0032] Furthermore, the rear section of the main frame member 1 is bent upward, and the first rear support beam 3 is fixedly connected between the bent parts of the rear section of the main frame member 1, and there is a distance between the first rear support beam 3 and the arch frame 6.

[0033] Furthermore, the second rear support beam 4 is fixedly connected between the vertical upper part of the rear section of the main frame member 1, and the rear load-bearing frame 11 is fixedly connected to the outer vertical upper part of the rear section of the main frame member 1, and the inner side of the rear load-bearing frame 11 is placed above the second rear support beam 4.

[0034] Furthermore, a support plate 12 is fixedly connected between the first rear support beam 3 and the second rear support beam 4 , and screw holes are provided in the support plate 12 .

[0035] The rear section of the main frame 1 is also bent upward, so that the first rear support beam 3 and the second rear support beam 4 are respectively provided in the bent upward part. Since the rear load-bearing frame 11 is provided on the outer side of the bent upward part to increase the weight of the rear section of the main frame 1, the first rear support beam 3 and the second rear support beam 4 are used together to stabilize the main frame 1. At the same time, the support plate 12 provided between the first rear support beam 3 and the second rear support beam 4 will be connected to the vehicle body, thereby increasing the stability of the main frame 1 between the two.

[0036] The first reinforcing ribs 7 are fixedly connected to the bent portion at the lower rear section of the main frame member 1 , and the two first reinforcing ribs 7 are symmetrical.

[0037] Furthermore, the upper bending portion of the rear section of the main frame member 1 is fixedly connected to the second reinforcing ribs 8 , and the two second reinforcing ribs 8 are symmetrical. At the same time, the second reinforcing ribs 8 are located below the second rear support beam 4 and the rear load-bearing frame 11 .

[0038] A first reinforcing rib 7 and a second reinforcing rib 8 are provided at the rear bend of the main frame 1. Since the rear section of the main frame 1 bears a relatively large load, the first reinforcing rib 7 and the second reinforcing rib 8 prevent the rear bend of the main frame 1 from breaking.

[0039] The lower support legs 13 are fixedly connected to the lower middle portion of the main frame member 1 , and the two lower support legs 13 are symmetrical. At the same time, the lower support legs 13 are located between the wire rack 9 and the arch frame 6 .

[0040] Two lower support legs 13 are provided below the main frame 1 in order to embed the frame into the vehicle body, and the lower support legs 13 are used to support the main frame 1 and the structure above it.

[0041] Working principle:

[0042] At both ends of the main frame member 1, two sections are made into a bent upward state corresponding to the shape of the vehicle body, so that the two ends and the middle part form a total load-bearing body, and a front support beam 2, a first rear support beam 3 and a second rear support beam 4 are respectively provided in the main frame member 1. The three are integrated with the main frame member 1. The front support beam 2, the first rear support beam 3 and the second rear support beam 4 are used to stabilize the front and rear of the main frame member 1 respectively, thereby enhancing the bearing capacity of the main frame member 1. At the same time, a wire rack 9 and an arch frame 6 are respectively provided between the inside of the main frame member 1 to further stabilize the bottom of the main frame member 1.

[0043] In addition, a steering support frame 10, a seat frame 5 and a rear load-bearing frame 11 are respectively provided above the main frame 1 and are integrated with the main frame 1, thereby increasing the continuity of the entire frame and enhancing the load-bearing capacity of the entire frame.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods without departing from the spirit of the present invention.

[0045] Although this document frequently uses terms such as 1. main frame member; 2. front support beam; 3. first rear support beam; 4. second rear support beam; 5. seat frame; 6. arch frame; 7. first reinforcing rib; 8. second reinforcing rib; 9. wire frame; 10. steering support frame; 11. rear load-bearing frame; 12. support plate; and 13. lower support leg, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention. Any interpretation of them as additional limitations would be contrary to the spirit of the present invention.

Claims

1. A lightweight frame structure for an electric vehicle, comprising a main frame member (1), characterized in that: A steering support frame (10) is provided in the middle of the upper front end of the main frame (1), and a front support beam (2) and a wire frame (9) are provided between the lower front end of the main frame (1), an arch frame (6) and a first rear support beam (3) are provided between the lower rear end of the main frame (1), and a second rear support beam (4) is provided between the upper rear end of the main frame (1), and a first reinforcing rib (7) and a second reinforcing rib (8) are provided in the bend of the rear end of the main frame (1), a support plate (12) is provided between the first rear support beam (3) and the second rear support beam (4), a seat frame (5) is provided above the rear end of the main frame (1), and a rear bearing frame (11) is provided at the rear end of the main frame (1), and a lower support leg (13) is provided below the main frame (1).

2. The lightweight frame structure of an electric vehicle according to claim 1, characterized in that: The front section of the main frame (1) is bent upward, and the middle section above the bent front section of the main frame (1) is provided with the middle section below the steering support frame (10). The front support beam (2) and the wire frame (9) are fixedly connected between the lower horizontal sections of the front part of the main frame (1), and there is a distance between the front support beam (2) and the wire frame (9). At the same time, the front support beam (2) is placed in front of the wire frame (9).

3. The lightweight frame structure of an electric vehicle according to claim 2, characterized in that: The middle portion of the main frame member (1) is fixedly connected to the bottom of the seat frame (5), and the upper portion of the rear end of the main frame member (1) is fixedly connected to one side of the upper portion of the seat frame (5), while the other side of the upper portion of the seat frame (5) is higher than the upper portion of the rear end of the main frame member (1).

4. The lightweight frame structure of an electric vehicle according to claim 3, characterized in that: The middle parts of the main frame members (1) are fixedly connected to an arch frame (6), and the upper part of the arch frame (6) is higher than the upper part of the middle part of the main frame members (1). At the same time, the arch frame (6) is placed below the seat frame (5).

5. The lightweight frame structure of an electric vehicle according to claim 4, characterized in that: The rear section of the main frame member (1) is bent upward, and the first rear support beam (3) is fixedly connected between the bent parts of the rear section of the main frame member (1), and there is a distance between the first rear support beam (3) and the arch frame (6).

6. The lightweight frame structure of an electric vehicle according to claim 5, characterized in that: The second rear support beam (4) is fixedly connected between the vertical upper portion of the rear section of the main frame member (1), and the rear support frame (11) is fixedly connected to the outside of the vertical upper portion of the rear section of the main frame member (1), and the inner side of the rear support frame (11) is placed above the second rear support beam (4).

7. The lightweight frame structure of an electric vehicle according to claim 6, characterized in that: A support plate (12) is fixedly connected between the first rear support beam (3) and the second rear support beam (4), and screw holes are provided in the support plate (12).

8. The lightweight frame structure of an electric vehicle according to claim 7, characterized in that: The lower bending portion of the rear section of the main frame member (1) is fixedly connected to the first reinforcing ribs (7), and the two first reinforcing ribs (7) are symmetrical.

9. The lightweight frame structure of an electric vehicle according to claim 8, characterized in that: The upper bend of the rear section of the main frame member (1) is fixedly connected to the second reinforcing ribs (8), and the two second reinforcing ribs (8) are symmetrical. At the same time, the second reinforcing ribs (8) are located below the second rear support beam (4) and the rear bearing frame (11).

10. The lightweight frame structure of an electric vehicle according to claim 9, characterized in that: The lower portion of the central portion of the main frame (1) is fixedly connected to a lower support leg (13), and the two lower support legs (13) are symmetrical. The lower support legs (13) are located between the wire rack (9) and the arch frame (6).

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