Long-endurance pure electric tractor

Abstract

The utility model discloses a long-endurance pure electric tractor, and relates to the technical field of vehicles. The long-endurance pure electric tractor comprises a frame, a cab and a trailer, wherein the cab and the trailer are arranged on the frame at an interval; the back power battery pack, the middle power battery pack, the first side hanging power battery pack and the second side hanging power battery pack are fixedly connected with the frame; the back power battery, the first side-hung power battery pack and the middle power battery pack are sequentially arranged between the cab and the trailer, and the second side-hung power battery pack is hung on the side edge of the trailer. According to the long-endurance pure electric tractor, the endurance of the tractor can be improved while the driving safety of a driver is not affected.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to a long-range pure electric tractor. Background Technology

[0002] As the application of new energy commercial vehicles in the short-haul market continues to mature, and as electrification technology continues to mature, the application scope of heavy-duty electric tractors is gradually expanding to the longer-range market.

[0003] However, pure electric tractor vehicles currently face problems such as insufficient charging stations and low charging capacity, which cannot meet the demand for long-range tractor vehicles. Therefore, there is an urgent need for a battery pack arrangement for long-range tractor vehicles that can increase the number of battery packs without affecting the driver's driving safety, so as to improve the tractor vehicle's range. Utility Model Content

[0004] The purpose of this invention is to provide a long-range pure electric tractor that can improve the tractor's range without affecting the driver's driving safety.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In one aspect, this utility model provides a long-range pure electric tractor, including a frame and a cab and a trailer spaced apart on the frame; it also includes a rear-mounted power battery pack, a centrally mounted power battery pack, a first side-mounted power battery pack and a second side-mounted power battery pack, which are respectively fixedly connected to the frame; the rear-mounted power battery pack, the first side-mounted power battery pack and the centrally mounted power battery pack are sequentially arranged between the cab and the trailer, and the second side-mounted power battery pack is mounted on the side edge of the trailer.

[0007] Optionally, there are two first side-mounted power battery packs, which are mounted on opposite sides of the vehicle frame.

[0008] Optionally, there may be multiple second-side mounted battery packs, which are evenly distributed on opposite sides of the frame and located on the side of the trailer facing the ground.

[0009] Optionally, the long-range pure electric tractor also includes a battery mounting structure, wherein the rear-mounted power battery pack is erected on the frame and located between the cab and the trailer via at least one battery mounting structure; the mid-mounted power battery pack is mounted on the frame via at least one battery mounting structure; the first side-mounted power battery pack is mounted on the frame via at least one battery mounting structure; and the second side-mounted power battery pack is mounted on the frame via at least one battery mounting structure.

[0010] Optionally, the battery fixing structure has a connecting plate and two support plates that are connected to each other, with the two support plates respectively disposed on opposite sides of the connecting plate; the connecting plate has a planar structure, the support plates have an arc-shaped bending structure, and the two support plates are bent toward the same side.

[0011] Optionally, the battery fixing structure has a connecting plate and a support plate connected to each other. The support plate is located at the end of the connecting plate and has a connected inclined plate and a flat plate. The surface of the inclined plate is inclined to the surface of the connecting plate, and the flat plate is parallel to the surface of the connecting plate. The connecting plate is used to connect with the mid-mounted power battery pack, and the support plate is connected to the vehicle frame through the flat plate.

[0012] Optionally, the two support plates are arranged parallel to each other and of equal length, so that the connecting plate has a rectangular structure.

[0013] Optionally, the two support plates are arranged parallel to each other and have different lengths, and the connecting plate has at least one weight-reducing groove.

[0014] Optionally, the two support plates are arranged at an angle to each other, and the connecting plate has at least one weight-reducing groove.

[0015] Optionally, the battery mounting structure is made of aluminum-magnesium alloy.

[0016] Optionally, the connecting plate has at least one mounting hole for inserting a fastener.

[0017] The beneficial effects of this utility model include:

[0018] This application provides a long-range pure electric tractor unit, including a frame and a cab and trailer spaced apart on the frame; it also includes a rear-mounted power battery pack, a centrally mounted power battery pack, a first side-mounted power battery pack, and a second side-mounted power battery pack, all fixedly connected to the frame. The arrangement of multiple power battery packs significantly increases the total available electrical energy of the tractor unit, extends its driving range, reduces the number of charging cycles, and improves transportation efficiency. The rear-mounted power battery pack, the first side-mounted power battery pack, and the centrally mounted power battery pack are sequentially positioned between the cab and the trailer, with the second side-mounted power battery pack mounted on the side edge of the trailer. This layout improves the vehicle's space utilization, does not encroach on the trailer's main cargo-carrying space, and makes the weight distribution of the vehicle more reasonable and balanced in the front-rear direction and on both sides. The aforementioned long-range pure electric tractor unit can improve the tractor unit's driving range without affecting the driver's safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 One of the structural schematic diagrams of the long-range pure electric tractor provided in this embodiment of the utility model;

[0021] Figure 2 A second structural schematic diagram of the long-range pure electric tractor provided in this embodiment of the utility model;

[0022] Figure 3 A schematic diagram showing the connection between the rear power battery pack and the battery fixing structure provided in an embodiment of this utility model;

[0023] Figure 4 One of the structural schematic diagrams of the battery fixing structure provided in the embodiment of this utility model;

[0024] Figure 5 This is the second schematic diagram of the battery fixing structure provided in the embodiment of the present utility model;

[0025] Figure 6 The third schematic diagram of the battery fixing structure provided in the embodiment of this utility model;

[0026] Figure 7 Fourth schematic diagram of the battery fixing structure provided in the embodiment of this utility model;

[0027] Figure 8 A schematic diagram showing the connection between the first side-mounted power battery pack and the battery fixing structure provided in an embodiment of this utility model;

[0028] Figure 9 A schematic diagram showing the connection between the mid-mounted power battery pack and the battery fixing structure provided in an embodiment of this utility model;

[0029] Figure 10 The fifth schematic diagram of the battery fixing structure provided in the embodiment of this utility model.

[0030] Icons: 100 - Long-range pure electric tractor; 110 - Chassis; 120 - Cab; 130 - Trailer; 140 - Rear-mounted battery pack; 150 - Mid-mounted battery pack; 160 - First side-mounted battery pack; 170 - Second side-mounted battery pack; 180 - Battery mounting structure; 181 - Connecting plate; 182 - Support plate; 1821 - Flat plate; 1822 - Sloping plate; 183 - Weight reduction groove; 184 - Mounting hole; 200 - Fixture; 210 - Battery rack. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Please refer to Figure 1 and Figure 2 This embodiment provides a long-range pure electric tractor 100, including a frame 110 and a cab 120 and a trailer 130 spaced apart on the frame 110; it also includes a rear-mounted power battery pack 140, a centrally mounted power battery pack 150, a first side-mounted power battery pack 160 and a second side-mounted power battery pack 170 respectively fixedly connected to the frame 110; the rear-mounted power battery, the first side-mounted power battery pack 160 and the centrally mounted power battery pack 150 are sequentially arranged between the cab 120 and the trailer 130, and the second side-mounted power battery pack 170 is mounted on the side edge of the trailer 130.

[0038] Specifically, this application provides a long-range pure electric tractor 100, which includes a frame 110. The frame 110 provides stable support for the cab 120 and trailer 130 of the long-range pure electric tractor 100. The frame 110 consists of at least two parallel and spaced-apart crossbeams and multiple spaced-apart vertical longitudinal beams. The longitudinal beams are perpendicular to the crossbeams to further improve the stability of the frame 110. The rear-mounted power battery pack 140, the centrally mounted power battery pack 150, the first side-mounted power battery pack 160, and the second side-mounted power battery pack 170 can be fixed to the crossbeams or longitudinal beams to achieve a stable connection with the frame 110.

[0039] like Figure 1 and Figure 2Both the cab 120 and the trailer 130 are located at the ends of the frame 110, with the trailer 130 used for loading cargo. The cab 120 and trailer 130 are spaced apart to improve space utilization, providing installation space for the rear battery pack, the first side-mounted power battery pack 160, and the centrally mounted power battery pack 150. Furthermore, placing the rear battery pack, the first side-mounted power battery pack 160, and the centrally mounted power battery pack 150 between the cab 120 and the trailer 130 effectively increases the vehicle's battery capacity without affecting the normal operation of components such as the driveshaft and suspension system. Additionally, due to their proximity to the cab 120, the rear battery pack, the first side-mounted power battery pack 160, and the centrally mounted power battery pack 150 can easily connect to the control unit within the cab 120, improving the convenience of management system wiring and the reliability of signal transmission.

[0040] In addition, the centrally located power battery pack 150 is situated in the middle of the frame 110, which helps to balance the vehicle's center of gravity, thereby reducing instability caused by the shift in the center of gravity.

[0041] like Figure 2 As shown, the first side-mounted power battery pack 160 is mounted on one side of the frame 110. This side-mounted design can increase battery capacity without occupying too much longitudinal space of the frame 110. At the same time, this layout can also fine-tune the lateral center of gravity of the vehicle. Together with the second side-mounted power battery pack 170, it helps the long-range pure electric tractor 100 maintain balance in the lateral direction, improving the stability of vehicle operation.

[0042] like Figure 2 As shown, the second side-mounted power battery pack 170 is mounted on the side edge of the trailer 130. This layout makes full use of the space on the side edge of the trailer 130, further expanding the vehicle's energy reserves without affecting the internal cargo space. Simultaneously, placing the second side-mounted power battery pack 170 on the side edge of the trailer 130 helps improve the weight distribution of the trailer 130. After loading cargo, the center of gravity of the trailer 130 may change significantly. The weight of the second side-mounted power battery pack 170 can, to some extent, balance this change, lowering the center of gravity of the long-range pure electric tractor 100. This makes the trailer 130 more stable during operation, reducing problems such as cargo swaying and vehicle rocking caused by an unstable center of gravity, thereby improving transportation safety and cargo integrity.

[0043] It should be noted that, firstly, such as Figure 2 As shown, in one possible embodiment of this application, there are two first side-mounted power battery packs 160, which are mounted on opposite sides of the vehicle frame 110.

[0044] Specifically, such as Figure 2 As shown, the two first side-mounted battery packs 160 are symmetrically distributed on opposite sides of the frame 110, which greatly optimizes the lateral weight balance of the vehicle, thereby effectively reducing vehicle roll. Furthermore, the two first side-mounted battery packs 160 significantly increase the total energy reserve of the long-range pure electric tractor 100, effectively improving the vehicle's range. Even if one side-mounted battery pack fails or its performance degrades, the other side-mounted battery pack can still continue to provide partial power support to the vehicle, enhancing the reliability and fault tolerance of the vehicle's electrical system, ensuring the continuity of transportation tasks, reducing the risk of transportation interruptions due to battery failure, and improving the vehicle's adaptability and stability under various operating conditions.

[0045] Second, such as Figure 2 As shown, in one possible embodiment of this application, there are multiple second side-mounted power battery packs 170, which are evenly distributed on opposite sides of the frame 110 and located on the side of the trailer 130 facing the ground.

[0046] Specifically, such as Figure 2 As shown, multiple second-side-mounted power battery packs 170 are symmetrically distributed on opposite sides of the frame 110, which can balance the lateral weight distribution of the long-range pure electric tractor 100. The multiple second-side-mounted power batteries are located on the ground-facing side of the trailer 130, making their position relatively low, thereby lowering the overall center of gravity of the vehicle and improving driving safety. At the same time, the layout of the second-side-mounted power battery packs 170 makes full use of the space under the trailer 130 without encroaching on the cargo space inside the trailer 130, thus improving the vehicle's space utilization rate.

[0047] This application provides a long-range pure electric tractor 100, including a frame 110 and a cab 120 and a trailer 130 spaced apart on the frame 110; it also includes a rear-mounted power battery pack 140, a centrally mounted power battery pack 150, a first side-mounted power battery pack 160 and a second side-mounted power battery pack 170, which are respectively fixedly connected to the frame 110; by setting up multiple power battery packs, the total amount of electric energy available to the tractor is greatly increased, the driving range of the vehicle is extended, the number of times the vehicle needs to be charged is reduced, and the transportation efficiency is improved;

[0048] The rear-mounted power battery, the first side-mounted power battery pack 160, and the centrally mounted power battery pack 150 are sequentially positioned between the cab 120 and the trailer 130, while the second side-mounted power battery pack 170 is mounted on the side edge of the trailer 130. This layout improves the vehicle's space utilization without encroaching on the trailer 130's primary cargo-carrying space, and also makes the vehicle's weight distribution in the front-rear direction and on both sides more reasonable and balanced. The aforementioned long-range pure electric tractor unit 100 can improve the tractor's range without compromising driver safety.

[0049] For example, the long-range pure electric tractor 100 also includes a battery mounting structure 180, such as Figure 3 , Figure 8 and Figure 9 As shown, the rear-mounted power battery pack 140 is erected on the frame 110 via at least one battery fixing structure 180 and is located between the cab 120 and the trailer 130; the mid-mounted power battery pack 150 is mounted on the frame 110 via at least one battery fixing structure 180; the first side-mounted power battery pack 160 is mounted on the frame 110 via at least one battery fixing structure 180; and the second side-mounted power battery pack 170 is mounted on the frame 110 via at least one battery fixing structure 180.

[0050] Specifically, to improve the stability of the connection between the rear-mounted power battery pack 140, the mid-mounted power battery pack 150, the first side-mounted power battery pack 160, and the second side-mounted power battery pack 170 and the frame 110, they can all be mounted on the frame 110 using a battery fixing structure 180. One side of the battery fixing structure 180 is fixedly connected to the frame 110, and the other side is fixedly connected to the battery pack. Depending on the specific form and installation method of the battery pack, the assembly position of the battery fixing structure 180 and the battery pack can be adaptively adjusted.

[0051] This application does not impose any restrictions on the specific form or number of battery fixing structures 180. Each battery pack can be fixed to the frame 110 by at least one battery fixing structure 180. In order to further improve the stability of the battery, preferably, when the battery pack is fixed to the frame 110 by one battery fixing structure 180, the width of the battery fixing structure 180 is greater than or equal to the width of the battery pack, so as to balance the force on the battery pack as much as possible.

[0052] In a preferred embodiment of this application, such as Figure 3 As shown, the rear power battery pack 140 is fixed to the frame 110 by three battery fixing structures 180. Each battery fixing structure 180 is spaced apart from each other to make the force on the battery pack as balanced as possible.

[0053] It should be noted that, in one possible implementation of this application, firstly, as... Figure 5 As shown, the battery fixing structure 180 has a connecting plate 181 and two support plates 182 connected to each other, with the two support plates 182 respectively disposed on opposite sides of the connecting plate 181; the connecting plate 181 has a planar structure, as shown in the figure. Figure 7 As shown, the support plate 182 has an arc-shaped bending structure, and the two support plates 182 are bent towards the same side.

[0054] Specifically, the connecting plate 181, as the main connecting component, plays a role in integrating and transmitting force, connecting the two support plates 182 into a whole structure. Through the combination of the connecting plate 181 and the two side support plates 182, an arch-like shape is formed in the cross-section, thereby improving the stability of the battery fixing structure 180 and effectively distributing the weight of the battery pack evenly on the support plates 182, avoiding deformation or damage to the battery fixing structure 180 due to excessive local stress.

[0055] like Figure 4 , Figure 6 , Figure 6 and Figure 7 As shown, the connecting plate 181 has a planar structure. The surface of the planar connecting plate 181 is relatively flat and smooth, which can provide a larger contact area when connecting and fixing with the battery pack to improve stability. At the same time, the planar structure allows the connecting plate 181 to distribute the force evenly on its surface when subjected to various forces from the battery and the vehicle during operation, ensuring the strength and reliability of the connection.

[0056] The support plate 182 has an arc-shaped bending structure, giving the battery fixing structure 180 a certain curvature and three-dimensional shape. When the vehicle is in motion, the battery fixing structure 180 will be subjected to forces of various directions and magnitudes. When bearing these forces, the arc-shaped bending support plate 182 can guide the force to be transmitted and dispersed along the arc structure, avoiding force concentration and reducing direct impact and damage to the battery pack. At the same time, the arc-shaped bending structure of the support plate 182 has higher structural strength and deformation resistance.

[0057] Second, such as Figure 9 and Figure 10 In another possible embodiment of this application, the battery fixing structure 180 has a connecting plate 181 and a support plate 182 connected to each other. The support plate 182 is disposed at the end of the connecting plate 181. The support plate 182 has a inclined plate 1822 and a flat plate 1821 connected to each other. The surface of the inclined plate 1822 is inclined to the surface of the connecting plate 181, and the flat plate 1821 is parallel to the surface of the connecting plate 181. The connecting plate 181 is used to connect with the centrally located power battery pack 150, and the support plate 182 is connected to the vehicle frame 110 through the flat plate 1821.

[0058] Specifically, such as Figure 9As shown, multiple mid-mounted battery packs 150 can be included. To improve space utilization, multiple mid-mounted battery packs 150 can be stacked and installed on the battery rack 210. The support plate 182 is fixedly connected to the battery rack 210 at one end via an inclined plate 1822, and fixedly connected to the vehicle frame 110 at the other end via a flat plate 1821. This arrangement allows the mid-mounted battery pack 150 to be installed lower, and the inclined support plate 182 increases the installation space for the mid-mounted battery pack 150, preventing the mid-mounted battery pack 150 from being too close to the vehicle frame 110.

[0059] Preferably, to further improve the stability of the battery fixing structure 180, such as... Figure 10 As shown, the thickness of the connecting plate 181 on the side closer to the support plate 182 can be greater than the thickness on the side farther from the support plate 182, so as to further improve the strength of the battery fixing structure 180.

[0060] Third, the battery mounting structure 180 is made of aluminum-magnesium alloy, achieving weight reduction. Using aluminum-magnesium alloy for the battery mounting structure 180 effectively reduces the overall weight of the vehicle. For the long-range pure electric tractor 100, reduced vehicle weight means a longer driving distance with the same amount of battery power. This not only helps improve the vehicle's energy efficiency but also reduces battery energy consumption to some extent, extending battery life. Simultaneously, the lightweight battery mounting structure 180 also improves vehicle handling performance, making the vehicle more agile and responsive during steering, acceleration, and braking.

[0061] In addition, aluminum-magnesium alloy parts also have high strength and durability, which can ensure that the battery pack is prevented from shifting, loosening or falling off during vehicle operation.

[0062] Third, the connecting plate 181 is provided with at least one mounting hole 184 for inserting the fastener 200. Preferably, the fastener 200 is a screw. To improve the connection stability between the connecting plate 181 and the battery pack, such as... Figure 4 , Figure 5 and Figure 6 As shown, there can be multiple mounting holes 184, which are evenly distributed on the surface of the connecting plate 181.

[0063] This application does not impose any limitation on the specific shape of the battery fixing structure 180, which can have multiple forms. For example, such as... Figure 5 As shown, the two support plates 182 are arranged parallel to each other and of equal length, so that the connecting plate 181 has a rectangular structure. The combination of the parallel and equal-length support plates 182 and the rectangular connecting plate 181 simplifies the production process and also has good adaptability, enabling installation with most battery packs.

[0064] For example, such as Figure 6 As shown, the two support plates 182 are arranged parallel to each other and have different lengths, and the connecting plate 181 has at least one weight-reduction groove 183. Because the two support plates 182 are parallel to each other and have different lengths, when the two ends of the connecting plate 181 are connected to the two support plates 182 respectively, it will bend when connected to the shorter support plate 182, thereby reducing the weight of the battery fixing structure 180. This structure can better adapt to the complex and varied vehicle frame structure 110 and battery packs of different shapes.

[0065] Because the two support plates 182 have different lengths, the distribution and transmission path of forces will change accordingly when bearing the weight of the battery and external forces during vehicle operation. The longer support plate 182 can serve as the main load-bearing component, while the shorter support plate 182 provides supplementary support and dispersion of forces in specific directions or areas, thereby improving the reliability and durability of the structure.

[0066] like Figure 6 As shown, a weight reduction groove 183 is provided in the middle of the connecting plate 181. The weight reduction groove 183 can reduce the weight of the entire battery fixing structure 180, thereby improving the energy utilization efficiency and driving range of the vehicle. In addition, the weight reduction groove 183 can also improve the heat dissipation performance of the battery fixing structure 180 to a certain extent, making it easier for the heat generated by the battery pack to be dissipated into the surrounding environment through the weight reduction groove 183.

[0067] For example, such as Figure 4 As shown, the two support plates 182 are inclined relative to each other to better adapt to the complex and varied structure of the vehicle frame 110 and battery packs of different shapes; at the same time, the inclined arrangement of the two support plates 182 allows each support plate 182 to distribute the force in different directions more evenly, reducing local stress concentration and improving the stability and reliability of the battery fixing structure 180 under complex stress conditions; the connecting plate 181 has at least one weight-reducing groove 183. Figure 4 As shown, two weight-reducing grooves 183 are respectively provided on opposite sides of the connecting plate 181 to reduce the weight of the entire battery fixing structure 180, thereby improving the energy utilization efficiency and driving range of the vehicle.

[0068] This application does not impose any restrictions on the specific shape of the weight reduction groove 183. The weight reduction groove 183 can be rectangular, trapezoidal, etc., as long as it can reduce the weight of the battery fixing structure 180.

[0069] The above description is merely an optional embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. A long-range pure electric tractor, characterized in that, The system includes a frame (110) and a cab (120) and a trailer (130) spaced apart on the frame (110); it also includes a rear-mounted power battery pack (140), a centrally mounted power battery pack (150), a first side-mounted power battery pack (160), and a second side-mounted power battery pack (170) respectively fixedly connected to the frame (110); the rear-mounted power battery pack, the first side-mounted power battery pack (160), and the centrally mounted power battery pack (150) are sequentially arranged between the cab (120) and the trailer (130), and the second side-mounted power battery pack (170) is mounted on the side edge of the trailer (130).

2. The long-range pure electric tractor according to claim 1, characterized in that, There are two first side-mounted power battery packs (160), and the two first side-mounted power battery packs (160) are mounted on opposite sides of the vehicle frame (110).

3. The long-range pure electric tractor according to claim 1, characterized in that, There are multiple second side-mounted power battery packs (170), which are evenly distributed on opposite sides of the frame (110) and located on the side of the trailer (130) facing the ground.

4. The long-range pure electric tractor according to claim 1, characterized in that, The long-range pure electric tractor (100) also includes a battery fixing structure (180). The rear-mounted power battery pack (140) is erected on the frame (110) through at least one of the battery fixing structures (180) and is located between the cab (120) and the trailer (130). The mid-mounted power battery pack (150) is mounted on the frame (110) through at least one of the battery fixing structures (180). The first side-mounted power battery pack (160) is mounted on the frame (110) through at least one of the battery fixing structures (180). The second side-mounted power battery pack (170) is mounted on the frame (110) through at least one of the battery fixing structures (180).

5. The long-range pure electric tractor according to claim 4, characterized in that, The battery fixing structure (180) has a connecting plate (181) and two support plates (182) connected to each other. The two support plates (182) are respectively disposed on opposite sides of the connecting plate (181). The connecting plate (181) has a planar structure, and the support plates (182) have an arc-shaped bending structure. The two support plates (182) are bent toward the same side.

6. The long-range pure electric tractor according to claim 4, characterized in that, The battery fixing structure (180) has a connecting plate (181) and a support plate (182) connected to each other. The support plate (182) is disposed at the end of the connecting plate (181). The support plate (182) has a connected inclined plate (1822) and a flat plate (1821). The surface of the inclined plate (1822) is inclined to the surface of the connecting plate (181). The flat plate (1821) is parallel to the surface of the connecting plate (181). The connecting plate (181) is used to connect with the mid-mounted power battery pack (150). The support plate (182) is connected to the vehicle frame (110) through the flat plate (1821).

7. The long-range pure electric tractor according to claim 5, characterized in that, The two support plates (182) are arranged parallel to each other and have the same length, so that the connecting plate (181) has a rectangular structure.

8. The long-range pure electric tractor according to claim 5, characterized in that, The two support plates (182) are arranged parallel to each other and have different lengths, and the connecting plate (181) has at least one weight-reducing groove (183).

9. The long-range pure electric tractor according to claim 5, characterized in that, The two support plates (182) are inclined to each other, and the connecting plate (181) has at least one weight-reducing groove (183).

10. The long-range pure electric tractor according to claim 5 or 6, characterized in that, The battery fixing structure (180) is an aluminum-magnesium alloy component.

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