High-strength frame of electric vehicle and electric vehicle

Abstract

The present invention discloses a high-strength frame of an electric vehicle and an electric vehicle. The high-strength frame of the electric vehicle comprises: a main beam tube, a pair of lower side tubes, a pair of upper side tubes, a front mounting seat of a seat bucket, and a rear mounting seat of the seat bucket. The present invention adopts a double-sided tube structure, which greatly increases the overall strength of the frame. The front end of the upper side tube is flattened and welded to the main beam tube. The front end of the lower side tube is arranged in an arc-shaped notch at the lower end of the main beam tube and welded to the main beam tube, which enhances the overall strength of the frame. Secondly, the front mounting seat of the seat bucket is arranged between the two upper side tubes, and the rear part of the front mounting seat of the seat bucket is welded to the lower side tube, so that the three are formed into a whole, which further enhances the overall strength of the frame. In addition, the arrangement of the tail tube and the side tube connecting plate further enhances the overall strength of the frame. According to a vibration test, the frame deformation of the present invention is within 2 mm after being subjected to 210W vibrations.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a high-strength frame of an electric vehicle and an electric vehicle. Background Art

[0002] An electric vehicle is a mechatronic personal transportation vehicle that uses a battery as an auxiliary energy source and is based on an ordinary bicycle and is equipped with a motor, controller, battery, handlebars, brake handles and other operating components and a display instrument system.

[0003] The frame is one of the main components of electric vehicles. When the frame of an existing electric vehicle is subjected to vibration testing, it is usually qualified as long as it meets the standard of 300,000 times, that is, after 300,000 vibrations, the deformation of the frame is within the required range. However, when such a frame is used under good road conditions, its service life is relatively long. However, when it is driven on a rough road, its strength is difficult to meet the requirements and its service life is short. Therefore, it is urgent to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to provide a high-strength frame of an electric vehicle and an electric vehicle in order to solve the problems raised in the above background technology.

[0005] The purpose of the present invention is to be achieved through the following technical solutions:

[0006] A high-strength frame for an electric vehicle, comprising:

[0007] A main beam tube, the upper end of which is inclined toward the forward direction of the electric bicycle;

[0008] A pair of lower side tubes, which are symmetrically arranged relative to the main beam tube, the lower end of the main beam tube is provided with an arc-shaped notch adapted to the outer contour of the lower side tube, the front end of the lower side tube is located in the arc-shaped notch and is welded to the main beam tube, and the rear part of the lower side tube extends backward and upward to form an extension part, and the two lower side tubes are connected as a whole at the tail;

[0009] A pair of upper side tubes, which are symmetrically arranged relative to the main beam tube, the front ends of the upper side tubes are provided with flat portions of arc-shaped structures, the flat portions are fitted with the outer wall of the main beam tube, and the flat portions are welded to the main beam tube, and the tails of the upper side tubes are welded to the front ends of the extension portions of the lower side tubes;

[0010] A seat bucket front mounting seat is installed between the two upper side tubes, the front portion of the seat bucket front mounting seat is welded to the upper side tubes, and the rear portion of the seat bucket front mounting seat is welded to the extended portion of the lower side tubes;

[0011] A seat bucket rear mounting seat, which is installed between the two lower side tubes, the seat bucket rear mounting seat is welded to the lower side tubes, and the seat bucket rear mounting seat is located at the rear end of the lower side tubes;

[0012] A side tube connecting plate for increasing strength is provided between the upper side tube and the lower side tube on the same side;

[0013] A tail pipe for increasing strength is arranged between the two lower side pipes and at the rear end of the lower side pipes.

[0014] As a preferred solution of the present invention, a connecting plate for increasing strength is provided between the two upper side tubes.

[0015] As a preferred solution of the present invention, the tail pipe is located below the rear mounting seat of the seat bucket.

[0016] As a preferred solution of the present invention, the upper end of the main beam tube is connected to a head tube, the head tube is arranged obliquely, and the upper end of the head tube is inclined toward the rear of the electric vehicle.

[0017] An electric vehicle comprises the high-strength frame of the electric vehicle as described above.

[0018] The beneficial effect of the present invention is that, compared with the prior art, the present invention adopts a double-sided tube structure, which greatly increases the overall strength of the frame, and the front end of the upper side tube is flattened and welded to the main beam tube, and the front end of the lower side tube is arranged in the arc groove at the lower end of the main beam tube and welded to the main beam tube, thereby making the connection between the upper side tube, the lower side tube and the main beam tube more reliable, thereby enhancing the overall strength of the frame. Secondly, the front mounting seat of the seat bucket is arranged between the two upper side tubes, and the rear part of the front mounting seat of the seat bucket is welded to the lower side tube, thereby making the three form a whole, thereby further enhancing the overall strength of the frame. In addition, the arrangement of the tail pipe and the side tube connecting plate further enhances the overall strength of the frame. According to the vibration test, the frame deformation of the frame of the present invention is within 2 mm after being subjected to 210W vibrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the structure of a high-strength frame of an electric vehicle.

[0020] In the figure:

[0021] 1. Main beam tube; 2. Lower side tube; 3. Upper side tube; 4. Extension part; 5. Flat part; 6. Front mounting seat of seat bucket; 7. Rear mounting seat of seat bucket; 8. Tail tube; 9. Side tube connecting plate; 10. Connecting plate; 11. Head tube. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0023] Please refer to Figure 1 As shown, Figure 1 The figure is a schematic diagram of the structure of a high-strength frame of an electric vehicle.

[0024] In this embodiment, a high-strength frame of an electric vehicle includes:

[0025] The main beam tube 1 has an upper end inclined toward the forward direction of the electric bicycle;

[0026] A pair of lower side tubes 2 are symmetrically arranged relative to the main beam tube 1, and the lower end of the main beam tube 1 is provided with an arc-shaped notch adapted to the outer contour of the lower side tube 2, the front end of the lower side tube 2 is located in the arc-shaped notch and is welded to the main beam tube 1, and the rear part of the lower side tube 2 extends backward and upward to form an extension part 4, and the two lower side tubes 2 are connected as a whole at the tail;

[0027] A pair of upper side tubes 3 are symmetrically arranged relative to the main beam tube 1, and a flat portion 5 with an arc structure is arranged at the front end of the upper side tube 3, and the flat portion 5 fits the outer wall of the main beam tube 1, and the flat portion 5 is welded to the main beam tube 1, and the tail of the upper side tube 3 is welded to the front end of the extension portion 4 of the lower side tube 2;

[0028] The front seat bucket mounting seat 6 is installed between the two upper side tubes 3, the front portion of the front seat bucket mounting seat 6 is welded to the upper side tube 3, and the rear portion of the front seat bucket mounting seat 6 is welded to the extension portion 4 of the lower side tube 2;

[0029] The seat bucket rear mounting seat 7 is installed between the two lower side tubes 2, the seat bucket rear mounting seat 7 is welded to the lower side tubes 2, and the seat bucket rear mounting seat 7 is located at the rear end of the lower side tubes 2;

[0030] A side tube connecting plate 9 for increasing strength is provided between the upper side tube 3 and the lower side tube 2 on the same side thereof;

[0031] A tail pipe 8 for increasing strength is provided between the two lower side pipes 2 and at the rear end of the lower side pipe 2 .

[0032] Specifically, in this embodiment, a connecting plate 10 is provided between the two upper side tubes 3 to increase the strength.

[0033] Specifically, in this embodiment, the tail pipe 8 is located below the rear mounting seat 7 of the seat bucket.

[0034] Specifically, in this embodiment, the upper end of the main beam tube 1 is connected to the head tube 11, and the head tube 11 is arranged obliquely, and the upper end of the head tube 11 is inclined toward the rear of the electric vehicle.

[0035] The high-strength frame of the above-mentioned electric vehicle adopts a double-sided tube structure, which greatly increases the overall strength of the frame, and the front end of the upper side tube 3 is flattened and welded to the main beam tube 1, and the front end of the lower side tube 2 is arranged in the arc groove at the lower end of the main beam tube 1 and welded to the main beam tube 1, thereby making the connection between the upper side tube 3, the lower side tube 2 and the main beam tube 1 more reliable, thereby enhancing the overall strength of the frame. Secondly, the front mounting seat 6 of the seat bucket is arranged between the two upper side tubes 3, and the rear part of the front mounting seat 6 of the seat bucket is welded to the lower side tube 2, thereby making the three form a whole, thereby further enhancing the overall strength of the frame. In addition, the setting of the tail pipe 8 and the side tube connecting plate 9 further enhances the overall strength of the frame. According to the vibration test, the deformation of the above-mentioned frame is within 2 mm after undergoing 210W vibrations.

[0036] This embodiment also discloses an electric vehicle, comprising the high-strength frame of the electric vehicle as described above.

[0037] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subjected to various changes and modifications, which are within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims.

Claims

1. A high-strength frame for an electric vehicle, characterized in that: include: A main beam tube, the upper end of which is inclined toward the forward direction of the electric bicycle; A pair of lower side tubes, which are symmetrically arranged relative to the main beam tube, the lower end of the main beam tube is provided with an arc-shaped notch adapted to the outer contour of the lower side tube, the front end of the lower side tube is located in the arc-shaped notch and is welded to the main beam tube, and the rear part of the lower side tube extends backward and upward to form an extension part, and the two lower side tubes are connected as a whole at the tail; A pair of upper side tubes, which are symmetrically arranged relative to the main beam tube, the front ends of the upper side tubes are provided with flat portions of arc-shaped structures, the flat portions are fitted with the outer wall of the main beam tube, and the flat portions are welded to the main beam tube, and the tails of the upper side tubes are welded to the front ends of the extension portions of the lower side tubes; A seat bucket front mounting seat is installed between the two upper side tubes, the front portion of the seat bucket front mounting seat is welded to the upper side tubes, and the rear portion of the seat bucket front mounting seat is welded to the extended portion of the lower side tubes; A seat bucket rear mounting seat, which is installed between the two lower side tubes, the seat bucket rear mounting seat is welded to the lower side tubes, and the seat bucket rear mounting seat is located at the rear end of the lower side tubes; A side tube connecting plate for increasing strength is provided between the upper side tube and the lower side tube on the same side; A tail pipe for increasing strength is arranged between the two lower side pipes and at the rear end of the lower side pipes.

2. The high-strength frame of an electric vehicle according to claim 1, characterized in that: A connecting plate is provided between the two upper side tubes to increase the strength.

3. The high-strength frame of an electric vehicle according to claim 2, characterized in that: The tail pipe is located below the rear mounting seat of the seat bucket.

4. The high-strength frame of an electric vehicle according to claim 3, characterized in that: The upper end of the main beam tube is connected with a head tube, the head tube is arranged obliquely, and the upper end of the head tube is inclined toward the rear of the electric vehicle.

5. An electric vehicle, characterized in that: The invention comprises a high-strength frame of an electric vehicle according to any one of claims 1 to 4.

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