Electric vehicle quadricycle frame

Abstract

The utility model provides a kind of electric vehicle four-wheeler frame, including two main beam tubes, two the main beam tube are integrally formed structure, the main beam tube includes front end, rear end, reinforcing portion, first connecting part and second connecting part;The front end and the rear end portion are located at the both ends of the reinforcing portion respectively, the front end and the reinforcing portion are connected by the first connecting part, the reinforcing portion and the rear end portion are connected by the second connecting part.The four-wheeler frame provided in the application.Due to the main beam tube adopts integrally formed structure, reduces welding point, effectively avoids the problem that welding point is detached when traditional welded frame is stressed, significantly improves the overall strength and fluency of frame.

Description

Technical Field

[0001] This utility model relates to the field of electric four-wheeled vehicle technology, and in particular to an electric four-wheeled vehicle frame. Background Technology

[0002] With the increasing popularity of electric four-wheeled vehicles, the structural upgrading and improvement of the vehicle frame has become a key focus in the industry, and the frame used for cargo transport has higher requirements for structural load-bearing capacity.

[0003] The common electric vehicle frame structure is made up of several straight beams welded together. For comfort and performance, they are often interlocked to meet installation requirements. When the vehicle is subjected to large forces after the adjacent pipes are welded together, the weld joints are prone to detachment. The overall smoothness and strength of the frame are poor, which makes it unable to meet the requirements for carrying cargo.

[0004] To solve the above-mentioned technical problems, this application provides a frame for a four-wheeled electric vehicle. Utility Model Content

[0005] Based on the above situation, the main purpose of this utility model is to provide a four-wheeled electric vehicle frame to solve the problem that the existing electric vehicle frames are made of multiple straight beams welded together, and the welds are prone to detachment.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An electric four-wheeled vehicle frame includes two main beam tubes, both of which are integrally formed structures.

[0008] The main beam tube includes a front end, a rear end, a reinforcing part, a first connecting part, and a second connecting part;

[0009] The front end and the rear end are located at the two ends of the reinforcing part, respectively. The front end and the reinforcing part are connected by the first connecting part, and the reinforcing part and the rear end are connected by the second connecting part.

[0010] Preferably, it also includes a carriage mounting platform, which includes a rear pole, a front pole, and side poles;

[0011] The front rod includes a first intermediate rod and a first side rod. The first intermediate rod is fixed between two reinforcing parts, and the two first side rods are respectively fixed to the two reinforcing parts on opposite sides away from each other.

[0012] The rear rod includes a second intermediate rod and a second side rod. The second intermediate rod is fixed between the two rear ends, and the two second side rods are respectively fixed to the two rear ends on opposite sides.

[0013] The side rod is fixed to the first side rod and the second side rod, and the side rod is arranged perpendicular to the first side rod and the second side rod.

[0014] Preferably, it also includes a reinforcing component;

[0015] The reinforcing assembly includes a first reinforcing rod, a second reinforcing rod, and a connecting rod;

[0016] The first reinforcing rod is fixed between the two reinforcing parts, and multiple second reinforcing rods are provided. The multiple second reinforcing rods are distributed on both sides of the carriage mounting platform, and the two ends of the second reinforcing rods are respectively fixed to the reinforcing part and the side rod.

[0017] The two ends of the connecting rod are respectively fixed to the first intermediate rod and the first reinforcing rod.

[0018] Preferably, the reinforcing assembly further includes a rear reinforcing rod, which is fixed between the two rear ends.

[0019] Preferably, the front end, rear end, and reinforcing part are all straight rods;

[0020] The distance between the two front ends is D1, the distance between the two reinforcing parts is D2, and the distance between the two rear ends is D3, wherein D1 < D2 < D3.

[0021] Preferably, a mounting plate and a mounting strip are fixed between the two front ends, and multiple swing arm connecting lugs are fixed on the lower side of the mounting plate and the mounting strip.

[0022] Preferably, the second side rod is fixed with a rear axle connecting lug.

[0023] The beneficial effects of this utility model are as follows: The electric four-wheel vehicle frame provided in this application, through the one-piece molded main beam tube design, effectively avoids the problem of weld point detachment when the traditional welded frame is under stress, and significantly improves the overall strength and smoothness of the frame.

[0024] Other beneficial effects of this utility model will be explained in detail through the introduction of specific technical features and technical solutions in the specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0025] Figure 1 This is a top view of a four-wheeled electric vehicle frame according to the present invention.

[0026] Figure 2 This is a bottom view of a four-wheeled electric vehicle frame according to the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Main beam tube; 11. Front end; 111. Mounting plate; 112. Mounting strip; 113. Swing arm connecting lug; 12. Reinforcing part; 13. Rear end; 14. First connecting part; 15. Second connecting part; 2. Carriage mounting platform; 21. Front rod; 211. First side rod; 212. First intermediate rod; 22. Rear rod; 221. Second side rod; 222. Second intermediate rod; 23. Side rod; 24. Rear axle connecting lug; 3. Reinforcing assembly; 31. First reinforcing rod; 32. Second reinforcing rod; 33. Connecting rod; 34. Rear reinforcing rod. Detailed Implementation

[0029] The present invention will now be described based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0030] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0031] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0032] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] Reference Figure 1 and Figure 2 This utility model provides a four-wheeled electric vehicle frame, including a main beam tube 1, a cargo box mounting platform 2, and a reinforcing component 3. There are two main beam tubes 1, which are the main load-bearing structures of the four-wheeled vehicle frame. The cargo box mounting platform 2 is fixed to the main beam tubes 1, which can stably fix the cargo box to the four-wheeled vehicle frame. The reinforcing component 3 is used to strengthen the strength between the two main beam tubes 1 or between the main beam tube 1 and the cargo box mounting platform 2, thereby improving the overall strength and rigidity of the four-wheeled vehicle frame.

[0034] Specifically, the main beam tube 1 adopts an integral molding structure, including a front end 11, a rear end 13, a reinforcing part 12, a first connecting part 14, and a second connecting part 15. The front end 11 and the rear end 13 are located at the two ends of the reinforcing part 12, and are smoothly transitioned and stably connected through the first connecting part 14 and the second connecting part 15, respectively.

[0035] Compared to existing technologies, the main beam tube 1 in this application adopts a one-piece structure made of high-strength steel, abandoning the traditional segmented welding design, eliminating the risk of weld fatigue fracture common in traditional welded frames, and achieving higher structural integrity. The front end 11 and the rear end 13 achieve a smooth transition through the first connecting part 14 and the second connecting part 15, which not only improves the aesthetics of the frame but also further enhances its strength.

[0036] As one embodiment, the front end 11, the rear end 13 and the reinforcing part 12 are all straight rods, and the spacing between the two front ends 11, the rear end 13 and the reinforcing part 12 are different. In order to realize the connection between the front end 11 and the rear end 13, the first connecting part 14 and the second connecting part 15 are inclined rods to make the overall structure of the main beam tube 1 stable.

[0037] Specifically, the distance between the two front end portions 11 is D1, the distance between the two reinforcing portions 12 is D2, and the distance between the two rear end portions 13 is D3, where D1 < D2 < D3. The width of the entire frame gradually increases from front to rear, which can improve the stability of the frame. Furthermore, most of the car body mounting platform 2 is installed on the reinforcing portion 12, and a small portion is installed on the rear end portion 13, which can improve the overall strength of the frame after the car body is installed.

[0038] As one embodiment, the carriage mounting platform 2 includes a rear pole 22, a front pole 21, and a side pole 23.

[0039] The front rod 21 includes a first intermediate rod 212 and a first side rod 211. The first intermediate rod 212 is fixed between the two reinforcing parts 12, and the two first side rods 211 are respectively fixed to the two reinforcing parts 12 on opposite sides. The first intermediate rod 212 and the first side rod 211 are horizontally arranged, and the extension directions of the first intermediate rod 212 and the first side rod 211 are in the same straight line.

[0040] The rear rod 22 includes a second intermediate rod 222 and a second side rod 221. The second intermediate rod 222 is fixed between the two rear ends 13, and the two second side rods 221 are fixed on the opposite sides of the two rear ends 13. The second intermediate rod 222 and the second side rod 221 are horizontally arranged, and their extension directions are in the same straight line. The side rod 23 is fixed between the first side rod 211 and the second side rod 221, and the side rod 23 is perpendicular to the first side rod 211 and the second side rod 221. The side rod 23, the front rod 21, and the rear rod 22 form a square carriage mounting platform 2, which can stably support the carriage. It should be noted that the front rod 21 and the main beam tube 1 can be fixed by welding. Based on the integral molding of the main beam tube 1, welding is used here to meet the strength requirements for installing the carriage.

[0041] As one embodiment, the reinforcing component 3 includes a first reinforcing rod 31, a second reinforcing rod 32, and a connecting rod 33. The first reinforcing rod 31 is fixed between the two reinforcing parts 12. Multiple second reinforcing rods 32 are provided, distributed on both sides of the carriage mounting platform 2. The two ends of each second reinforcing rod 32 are fixed to the reinforcing part 12 and the side rod 23, respectively. The two ends of the connecting rod 33 are fixed to the middle of the first intermediate rod 212 and the first reinforcing rod 31, respectively. Since most of the carriage is installed at the location of the reinforcing part 12, the load-bearing capacity of the reinforcing part 12 can be specifically improved by setting the first reinforcing rod 31, the second reinforcing rod 32, and the connecting rod 33 at the location of the reinforcing part 12. At locations with slightly weaker strength requirements, such as the front and rear ends of the vehicle, the amount of reinforcing structure can be appropriately reduced, improving lightweighting and saving energy.

[0042] Furthermore, the reinforcing component 3 also includes a rear reinforcing bar 34, which is located between the two rear ends 13. Since the rear end of the carriage needs to bear a certain weight of cargo, the rear reinforcing bar 34 is provided on the rear end 13 to further enhance the load-bearing capacity of the rear end of the frame and ensure the stability and safety of the frame when carrying cargo.

[0043] As one embodiment, a mounting plate 111 and a mounting strip 112 are fixed between the two front ends 11. Multiple swing arm connecting lugs 113 are fixed on the lower side of the mounting plate 111 and the mounting strip 112. The swing arm connecting lugs 113 can be connected to the swing arm of the front suspension of the four-wheeled vehicle, so that the swing arm of the suspension of the four-wheeled vehicle frame can be connected to the swing arm connecting lugs 113, and the impact load can be more smoothly distributed to the main beam tube 1 structure.

[0044] Furthermore, the second side rod 221 is fixed with a rear axle connecting lug 24, which can be connected to the tie rod of the rear axle. The force borne by the rear axle can be indirectly transmitted to the main beam tube 1 through the carriage mounting platform 2, thereby improving the stability of the four-wheeled vehicle.

[0045] The implementation principle of this utility model is as follows: In practical applications, the four-wheeled electric vehicle frame, through its unique one-piece molded main beam tube 1 design, effectively avoids the problem of weld fatigue fracture in traditional welded frames, greatly enhancing the structural integrity and durability of the frame. The front end 11, rear end 13, and reinforcing part 12 of the main beam tube 1 adopt a straight rod design, and achieve a smooth transition through the first connecting part 14 and the second connecting part 15, which not only makes the frame more aesthetically pleasing but also further improves its overall strength.

[0046] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0047] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this utility model, any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details will be included within the scope of the claims of this utility model.

Claims

1. A frame for a four-wheeled electric vehicle, characterized in that, It includes two main beam tubes, both of which are integrally formed structures. The main beam tube includes a front end, a rear end, a reinforcing part, a first connecting part, and a second connecting part; The front end and the rear end are located at the two ends of the reinforcing part, respectively. The front end and the reinforcing part are connected by the first connecting part, and the reinforcing part and the rear end are connected by the second connecting part.

2. The electric four-wheeled vehicle frame as described in claim 1, characterized in that, It also includes a carriage mounting platform, which includes a rear pole, a front pole, and side poles; The front rod includes a first intermediate rod and a first side rod. The first intermediate rod is fixed between two reinforcing parts, and the two first side rods are respectively fixed to the two reinforcing parts on opposite sides away from each other. The rear rod includes a second intermediate rod and a second side rod. The second intermediate rod is fixed between the two rear ends, and the two second side rods are respectively fixed to the two rear ends on opposite sides. The side rod is fixed to the first side rod and the second side rod, and the side rod is arranged perpendicular to the first side rod and the second side rod.

3. The electric four-wheeled vehicle frame as described in claim 2, characterized in that, It also includes reinforcement components; The reinforcing assembly includes a first reinforcing rod, a second reinforcing rod, and a connecting rod; The first reinforcing rod is fixed between the two reinforcing parts, and multiple second reinforcing rods are provided. The multiple second reinforcing rods are distributed on both sides of the carriage mounting platform, and the two ends of the second reinforcing rods are respectively fixed to the reinforcing part and the side rod. The two ends of the connecting rod are respectively fixed to the first intermediate rod and the first reinforcing rod.

4. The electric four-wheeled vehicle frame as described in claim 3, characterized in that, The reinforcing assembly also includes a rear reinforcing rod, which is fixed between the two rear ends.

5. The electric four-wheeled vehicle frame as described in claim 1, characterized in that, The front end, rear end, and reinforcing part are all straight rods; The distance between the two front ends is D1, the distance between the two reinforcing parts is D2, and the distance between the two rear ends is D3, wherein D1 < D2 < D3.

6. The electric four-wheeled vehicle frame as described in claim 1, characterized in that, A mounting plate and a mounting strip are fixed between the two front ends, and multiple swing arm connecting lugs are fixed on the lower side of the mounting plate and the mounting strip.

7. The electric four-wheeled vehicle frame as described in claim 2, characterized in that, The second side rod is fixed with a rear axle connecting lug.

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