Integrated electric vehicle frame

Abstract

The utility model relates to an integrated electric vehicle frame, and belongs to the technical field of electric vehicle frames. The trolley comprises a trolley body, a first functional area is arranged at the position of a vehicle head of the vehicle body, the first functional area is connected with one side of a second functional area, the other side of the second functional area is connected with a third functional area, a fourth functional area is arranged at the top of the third functional area, and the third functional area and the fourth functional area are located at the position of a vehicle tail of the vehicle body. A partition plate is arranged between the third functional area and the fourth functional area; the overall structure of the first functional area, the second functional area, the third functional area and the fourth functional area is integrally formed, and the integrally-formed overall structure serves as the outer vertical face of the vehicle body. The vehicle frame is reasonably distributed, the integrally formed vehicle frame directly serves as the outer vertical face of the vehicle body, plastic parts do not need to be covered, the weight of the vehicle frame can be reduced, and meanwhile strength and rigidity do not change along with weight reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle frames, in particular to an integrated electric vehicle frame. Background Technique

[0002] With the strict standardization of the electric vehicle industry, especially the requirement that the total weight of an electric vehicle does not exceed 55 kg and the weight of plastic parts is limited within 3 kg, aiming to promote the development of electric vehicles towards a more lightweight, environmentally friendly and efficient direction, higher requirements are also put forward for the design, material selection and manufacturing process of electric vehicles. Therefore, manufacturers are facing unprecedented challenges.

[0003] At the same time, when the electric vehicle frame is designed to be lightweight, it will also bring the problem that the strength and rigidity decrease accordingly.

[0004] Therefore, to solve the above technical problems, it is urgent to develop an integrated electric vehicle frame. Content of the Utility Model

[0005] The applicant of the present utility model aims at the shortcomings in the above-mentioned existing production technologies, and provides an integrated electric vehicle frame, which can reduce the weight of the frame, and at the same time ensure that the strength and rigidity do not change with the reduction of weight, meeting the requirements of lightweight of electric vehicles.

[0006] The technical solution adopted by the present utility model is as follows: an integrated electric vehicle frame, including a vehicle body; a first functional area is arranged at the head position of the vehicle body, the first functional area is connected to one side of the second functional area, the other side of the second functional area is connected to the third functional area, a fourth functional area is arranged at the top of the third functional area, the third functional area and the fourth functional area are located at the tail position of the vehicle body, and a partition is arranged between the third functional area and the fourth functional area; the overall structures of the first functional area, the second functional area, the third functional area and the fourth functional area are integrally formed, and the integrally formed overall structure serves as the outer facade of the vehicle body.

[0007] As a further improvement of the above technical solution:

[0008] In one embodiment, an integrated structure is formed between the inner windward surface in the first functional area, the footrest surface in the second functional area, the connection and extension surface in the third functional area and the outer side surface of the cabin in the fourth functional area.

[0009] In one embodiment, the structure of the first functional area is: a front enclosure cover is arranged on the outer side surface at the head position of the first functional area, and an inner windward unit is arranged on the inner side surface opposite to the front enclosure cover at the head position of the first functional area; the inner windward unit is integrally connected with the front fork mounting unit.

[0010] Preferably, the front enclosure cover is an independent split structure, and the front enclosure cover is connected to the inner windshield unit by bolts; the structure of the inner windshield unit is: a storage space is provided inside, and a hook is provided outside, and the hook is used for hanging items; the inner windshield unit and the front fork mounting unit are connected into one body by providing reinforcing ribs.

[0011] In one embodiment, the structure of the second functional area is: including a footrest unit, a side baffle, and a bottom reinforcing plate, and the footrest unit, the side baffle, and the bottom reinforcing plate are integrally connected structures.

[0012] Preferably, the footrest unit is the top surface of the integrally connected structure, and the footrest unit is used for carrying the driver's feet and placing accompanying items; the bottom reinforcing plate is the bottom surface of the integrally connected structure, and the bottom reinforcing plate strengthens the strength and stiffness of the frame and is used for the passage of wire harnesses, oil pipes, and cables; the side baffle is the connecting part between the footrest unit and the bottom reinforcing plate, located in the side vertical surface area of the second functional area, and the side baffle is used to enhance the body strength.

[0013] In one embodiment, the structure of the third functional area is: including a middle curved chain mounting unit, a rear flat fork mounting unit, and a rear baffle; the middle curved chain mounting unit is connected to the vehicle body by bolts; the rear flat fork mounting unit and the rear baffle are integrally connected by a reinforcing rib.

[0014] Preferably, the middle curved chain mounting unit is installed in the third functional area and is located on the right side of the second functional area, and the middle curved chain mounting unit is used for installing the middle curved chain system of the electric vehicle; the rear flat fork mounting unit is located on the right side of the middle curved chain mounting unit, and the rear flat fork mounting unit is used for installing the rear flat fork system of the electric vehicle; the rear baffle is located above the rear flat fork mounting unit, and the rear baffle is used to strengthen the frame strength.

[0015] In one embodiment, the structure of the fourth functional area is: including a power unit, a seat cushion support unit, and a shock absorber mounting lug; the power unit is arranged at the upper rear end of the vehicle body, the seat cushion support unit is arranged on the top of the power unit, and the shock absorber mounting lug is arranged at the rear side of the power unit.

[0016] Preferably, the power unit is a battery compartment structure, the side of the battery compartment is enclosed on all four sides, the top surface of the battery compartment is open and is used for disassembling and assembling the battery; a seat cushion is installed on the seat cushion support unit; a shock absorber is installed on the shock absorber mounting lug.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The integrated electric vehicle frame of the present utility model is integrally formed, the structure is reasonably distributed, and the overall structure after integral forming is directly used as the outer facade of the vehicle body, without being covered by plastic parts. It has the advantage of light weight and no plastic parts are provided, which can meet the weight limit requirements and plastic limit requirements;

[0019] The present utility model also has the following advantages:

[0020] For the integrated electric vehicle frame of the present utility model, by reasonably distributing and arranging the first functional area, the second functional area, the third functional area and the fourth functional area, each functional area is connected by a transition surface, and is supplemented by the setting of reinforcing ribs, so as to meet the strength and rigidity of the whole frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall layout of the present utility model.

[0022] Figure 2 It is Figure 1 a side view of

[0023] Figure 3 a three-dimensional view (first perspective) of the vehicle body structure of the present utility model.

[0024] Figure 4 a three-dimensional view (second perspective) of the vehicle body structure of the present utility model.

[0025] Figure 5 a three-dimensional view (third perspective) of the vehicle body structure of the present utility model.

[0026] Wherein: 1, the first functional area; 2, the second functional area; 3, the third functional area; 4, the fourth functional area; 5, the partition board;

[0027] 11, the front enclosure cover; 12, the inner windshield unit; 13, the front fork mounting unit; 14, the inner windshield surface;

[0028] 21, the footrest unit; 22, the side baffle; 23, the bottom reinforcement plate; 24, the footrest surface;

[0029] 31, the middle curved chain mounting unit; 32, the rear flat fork mounting unit; 33, the rear baffle; 34, the connection extension surface;

[0030] 41, the power unit; 42, the seat cushion support unit; 43, the shock absorber mounting lug; 44, the outer side surface of the cabin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will describe the detailed embodiments of the present utility model with reference to the accompanying drawings.

[0032] In order to facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model in this article are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] In the case of using "including", "having", and "comprising" described herein, unless explicit limiting terms are used, such as "only", "consisting of", etc., another component may also be added. Unless otherwise mentioned, terms in the singular form may include the plural form and should not be construed as having a quantity of one.

[0035] It should be understood that although terms such as "first" and "second" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this utility model, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element.

[0036] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the components are only drawn by way of example in the drawings and not necessarily to the actual scale.

[0037] As Figures 1 to 5 , a schematic structural state diagram of an integrated electric vehicle frame in an embodiment of this utility model is shown; for ease of description, the drawings only show the structures related to the embodiments of this utility model.

[0038] In one embodiment, an integrated electric vehicle frame is provided, including a vehicle body; a first functional area 1 is provided at the front position of the vehicle body, the first functional area 1 is connected to one side of a second functional area 2, the other side of the second functional area 2 is connected to a third functional area 3, a fourth functional area 4 is provided at the top of the third functional area 3, the third functional area 3 and the fourth functional area 4 are located at the rear position of the vehicle body, and a partition 5 is provided between the third functional area 3 and the fourth functional area 4; the overall structures of the first functional area 1, the second functional area 2, the third functional area 3, and the fourth functional area 4 are integrally formed, and the integrally formed overall structure serves as the outer facade of the vehicle body;

[0039] Specifically, an integrated structure exists between the inner windward surface 14 in the first functional area 1, the footrest surface 24 in the second functional area 2, the connecting and extending surface 34 in the third functional area 3, and the outer side surface 44 of the cabin in the fourth functional area 4;

[0040] Among them, the connection between the inner windshield surface 14 in the first functional area 1 and the footrest surface 24 in the second functional area 2 can be a direct transition, or a chamfer can be provided at the contact end of the inner windshield surface 14 and the footrest surface 24 and the transition can be achieved through the chamfer;

[0041] Among them, the footrest surface 24 in the second functional area 2 is connected to the connecting extension surface 34 in the third functional area 3, and the connecting extension surface 34 is preferably an arc surface.

[0042] In this embodiment, further, the structure of the first functional area 1 is: a front enclosure cover 11 is provided on the outer side surface at the front of the first functional area 1, and an inner windshield unit 12 is provided on the inner side surface opposite to the front enclosure cover 11 at the front of the first functional area 1; the inner windshield unit 12 and the front fork mounting unit 13 are integrally connected;

[0043] Furthermore, the front enclosure cover 11 is an independent split structure, and the front enclosure cover 11 and the inner windshield unit 12 are connected by bolts; the structure of the inner windshield unit 12 is: a storage space is provided inside, and a hook is provided outside, and the hook is used for hanging items; the inner windshield unit 12 and the front fork mounting unit 13 are connected into one body by providing reinforcing ribs, and the front fork mounting unit 13 and the inner windshield unit 12 on the vehicle body are integrally formed, which can greatly increase the front end strength of the vehicle body; specifically, the front enclosure cover 11 is mainly formed by high-pressure injection molding of metal powder, the position of the front fork mounting unit 13 is in the front direction of the vehicle head, the front fork mounting unit 13 mainly mounts the front fork steering mechanism, and at the same time has the functions of steering limit and auxiliary bearing for installing electrical components such as horns, VCU, and converters. The implementation form of the front fork mounting unit 13 is integral casting with a low-pressure sand core mold. After the front fork mounting unit 13 is cast, it is necessary to use a tooling double-headed boring machine to ensure the installation accuracy.

[0044] In this embodiment, further, the structure of the second functional area 2 is: including a footrest unit 21, a side baffle 22, and a bottom reinforcement plate 23, and the footrest unit 21, the side baffle 22, and the bottom reinforcement plate 23 are an integrated connection structure;

[0045] Furthermore, the footrest unit 21 is the top surface of the integrated connection structure, and the footrest unit 21 is used to carry the driver's feet and place accompanying items; the bottom reinforcement plate 23 is the bottom surface of the integrated connection structure, and the bottom reinforcement plate 23 strengthens the strength and stiffness of the frame and is used for the passage of wire harnesses, oil pipes, and cables; the side baffle 22 is the connection part between the footrest unit 21 and the bottom reinforcement plate 23, and is located in the side vertical surface area of the second functional area 2. The side baffle 22 is used to enhance the body strength; specifically, the footrest unit 21 is a footrest board, which is responsible for carrying the driver's feet and placing accompanying items. Exemplarily, a window can be opened on the footrest board and covered by a covering piece; the footrest unit 21, the side baffle 22, and the bottom reinforcement plate 23 are integrally cast with a low-pressure sand core mold.

[0046] In this embodiment, further, the structure of the third functional area 3 is as follows: it includes a middle crank chain mounting unit 31, a rear swingarm mounting unit 32, and a rear baffle 33; the middle crank chain mounting unit 31 is connected to the vehicle body by bolts; the rear swingarm mounting unit 32 and the rear baffle 33 are integrally connected by a reinforcing rib;

[0047] Furthermore, the middle crank chain mounting unit 31 is installed within the third functional area 3 and on the right side of the second functional area 2. The middle crank chain mounting unit 31 is used to install the middle crank chain system of the electric vehicle; the rear swingarm mounting unit 32 is located on the right side of the middle crank chain mounting unit 31, and the rear swingarm mounting unit 32 is used to install the rear swingarm system of the electric vehicle; the rear baffle 33 is located above the rear swingarm mounting unit 32, and the rear baffle 33 is used to strengthen the frame strength; specifically, the middle crank chain mounting unit 31 can meet the pedaling function when installing the middle crank chain system of the electric vehicle. The middle crank chain mounting unit 31, the rear swingarm mounting unit 32, and the rear baffle 33 are integrally cast by a low-pressure sand core mold. The rear swingarm mounting unit 32 is provided at the bottom rear end of the vehicle body and matches the mounting holes. The process form of integrally casting the rear swingarm mounting unit 32 with the frame can greatly increase the mounting dimensional accuracy and connection strength of the rear swingarm; a middle crank sprocket system is provided in the middle crank chain mounting unit 31 at the bottom of the vehicle body, and the middle crank sprocket system is connected to the frame by bolts or welding, greatly reducing the maintenance cost.

[0048] In this embodiment, further, the structure of the fourth functional area 4 is as follows: it includes a power unit 41, a seat support unit 42, and a shock absorber mounting lug 43; the power unit 41 is arranged at the upper rear end of the vehicle body, the seat support unit 42 is arranged on the top of the power unit 41, and the shock absorber mounting lug 43 is arranged at the rear side of the power unit 41;

[0049] Furthermore, the power unit 41 is a battery compartment structure. The side of the battery compartment is enclosed on all four sides, and the top surface of the battery compartment is open and used for disassembling and assembling the battery; specifically, the battery can be disassembled and assembled through the upper opening of the battery compartment. The battery compartment is provided with limiting ribs, and the battery compartment is integrally cast with the frame in a process form. This form does not burn in case of fire, greatly increasing safety; exemplarily, electrical components such as a controller and an air switch can also be installed in the battery compartment;

[0050] A seat cushion is installed on the seat support unit 42, and a shock absorber is installed on the shock absorber mounting lug 43. The seat cushion and the shock absorber have the functions of filtering vibration and increasing comfort; the power unit 41, the seat support unit 42, and the shock absorber mounting lug 43 are integrally cast by a low-pressure sand core mold. The shock absorber mounting lug 43 is integrally cast with the frame in a process form, which can greatly increase the connection strength of the rear shock absorber.

[0051] In this embodiment, exemplarily, the die-casting molding materials that can be selected include, but are not limited to, aluminum alloy, magnesium alloy, or aluminum-magnesium alloy;

[0052] Preferably, aluminum alloy can be used in this embodiment.

[0053] The structure of the utility model is reasonable and easy to manufacture. It can be integrally cast by a low-pressure sand core mold. Each functional area is connected by a transition surface and is provided with reinforcing ribs for assistance, meeting the strength and rigidity requirements of the entire vehicle frame. At the same time, it has the advantage of light weight and meets the weight limit requirements. The entire vehicle body has no plastic part design and can also meet the plastic limit requirements.

[0054] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0055] The above-described embodiments only express the implementation manners of the utility model, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An integrated electric vehicle frame, characterized in that: include: Vehicle body; A first functional area (1) is arranged at the front of the vehicle body, the first functional area (1) is connected to one side of the second functional area (2), the other side of the second functional area (2) is connected to the third functional area (3), a fourth functional area (4) is arranged on the top of the third functional area (3), the third functional area (3) and the fourth functional area (4) are located at the rear of the vehicle body, and a partition (5) is arranged between the third functional area (3) and the fourth functional area (4); The overall structure of the first functional area (1), the second functional area (2), the third functional area (3) and the fourth functional area (4) is formed in an integrated manner, and the integrated structure serves as the exterior facade of the vehicle body.

2. The integrated electric vehicle frame according to claim 1, characterized in that: The inner windshield surface (14) in the first functional area (1), the footrest surface (24) in the second functional area (2), the connecting extension surface (34) in the third functional area (3), and the cabin outer surface (44) in the fourth functional area (4) form an integrated structure.

3. The integrated electric vehicle frame according to claim 1, characterized in that: The structure of the first functional area (1) is as follows: a front enclosure cover (11) is arranged on the outer side surface of the first functional area (1) at the front position of the vehicle, and an inner windshield unit (12) is arranged on the inner side surface of the first functional area (1) at the front position of the vehicle opposite to the front enclosure cover (11); The inner windshield unit (12) and the front fork mounting unit (13) are integrally formed.

4. The integrated electric vehicle frame according to claim 3, characterized in that: The front enclosure cover (11) is an independent split structure, and the front enclosure cover (11) and the inner windshield unit (12) are connected by bolts; The structure of the inner windshield unit (12) is as follows: a storage space is arranged inside, and a hook is arranged outside, and the hook is used to hang articles; The inner windshield unit (12) and the front fork mounting unit (13) are connected as one body by providing reinforcing ribs.

5. The integrated electric vehicle frame according to claim 1, characterized in that: The structure of the second functional area (2) is as follows: it includes a pedal unit (21), a side baffle (22) and a bottom reinforcement plate (23); the pedal unit (21), the side baffle (22) and the bottom reinforcement plate (23) are an integrated connection structure.

6. The integrated electric vehicle frame according to claim 5, characterized in that: The pedal unit (21) is the top surface of the integrated connection structure, and the pedal unit (21) is used to support the driver's feet and place accompanying items; The bottom reinforcement plate (23) is the bottom surface of the integrated connection structure. The bottom reinforcement plate (23) strengthens the strength and rigidity of the vehicle frame and is used for the passage of wire harnesses, oil pipes and cables. The side baffle (22) is a connecting portion between the pedal unit (21) and the bottom reinforcing plate (23), and is located in the side elevation area of ​​the second functional area (2). The side baffle (22) is used to improve the strength of the vehicle body.

7. The integrated electric vehicle frame according to claim 1, characterized in that: The structure of the third functional area (3) is as follows: it includes a middle curved chain installation unit (31), a rear flat fork installation unit (32) and a rear baffle (33); The middle bend chain installation unit (31) is connected to the vehicle body via bolts; The rear flat fork mounting unit (32) and the rear baffle (33) are integrally connected via reinforcing ribs.

8. The integrated electric vehicle frame according to claim 7, characterized in that: The middle-curve chain installation unit (31) is installed in the third functional area (3) and is located on the right side of the second functional area (2). The middle-curve chain installation unit (31) is used to install the middle-curve chain system of the electric vehicle; The rear fork installation unit (32) is located on the right side of the middle curved chain installation unit (31), and the rear fork installation unit (32) is used to install the rear fork system of the electric vehicle; The rear baffle (33) is located above the rear flat fork mounting unit (32), and the rear baffle (33) is used to enhance the strength of the frame.

9. The integrated electric vehicle frame according to claim 1, characterized in that: The structure of the fourth functional area (4) is as follows: it includes a power unit (41), a seat cushion support unit (42) and a shock-absorbing mounting lug (43); The power unit (41) is arranged at the upper rear end of the vehicle body, the seat cushion support unit (42) is arranged at the top of the power unit (41), and the shock-absorbing mounting lug (43) is arranged at the rear side of the power unit (41).

10. The integrated electric vehicle frame according to claim 9, characterized in that: The power unit (41) is a battery compartment structure, the sides of the battery compartment are closed on all four sides, and the top of the battery compartment is open and used for disassembling and installing batteries; A seat cushion is mounted on the seat cushion support unit (42); A shock absorber is installed on the shock absorbing mounting lug (43).

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