Arrangement structure of chassis of pure electric rear-drive truck

Abstract

The utility model relates to the field of electric vehicle chassis, and particularly discloses a chassis arrangement structure of a pure electric rear-drive truck. Comprising a frame, a battery pack, an integrated controller and a motor, the battery pack and the motor are both arranged on the frame, the integrated controller is located between the battery pack and the motor, and an interface of the battery pack and a motor interface of the integrated controller both face the motor; a charging port support is arranged on the frame, the charging port frame is located in the side direction of the frame, the projection of the charging port support in the width direction of the frame right faces an interface of the battery pack, and a charging port of the battery pack is formed in the charging port support. According to the chassis arrangement structure of the pure electric rear-drive truck, the problem that the efficiency of an electric drive system and the cruising ability of the whole truck are reduced due to the fact that the high-voltage wiring harness is too long is solved.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle chassis, in particular to a chassis layout structure of a pure electric rear-drive truck. Background Art

[0002] Electric vehicles are exciting vehicles that are powered by batteries and driven by motors. Compared with fuel vehicles, electric vehicles are powered by electricity and do not emit exhaust gas that pollutes the environment while driving. They are currently being accepted by more and more consumers.

[0003] The current electric truck, as shown in the patent disclosed in application number CN202320580509.2, is a pure electric truck, including a cargo box, a frame, a front axle, a rear axle, a battery and a power system. The frame includes two longitudinal beams distributed left and right, and the longitudinal beams extend along the front and rear directions of the frame. The front axle and the rear axle are respectively located on the front and rear sides of the longitudinal beams. The power system includes an all-in-one controller, a high-voltage box and a battery replacement module; an installation area for arranging the power system and the battery is formed between the two longitudinal beams and the bottom of the cargo box. In the direction from the front end to the rear end of the longitudinal beam, the installation area includes a first installation area, a second installation area and a third installation area in sequence. The first installation area, the second installation area and the third installation area are all located between the front axle and the rear axle. The battery and the all-in-one controller are located in the first installation area, the high-voltage box is located in the second installation area, and the battery replacement module is located in the third installation area.

[0004] The all-in-one controller is a core control device used to control the start, operation, advance, retreat, speed, stop and other electronic devices of the electric vehicle motor. Therefore, after the all-in-one controller is installed, it needs to be connected to the battery, motor and other electronic devices through a high-voltage wire harness. The motor in the above-mentioned car is located at the rear axle position, which is a large distance away from the all-in-one controller. Therefore, the high-voltage wire harness between the motor and the all-in-one controller is longer, resulting in greater losses in the entire circuit, which will ultimately reduce the efficiency of the electric drive system and the vehicle's endurance. Utility Model Content

[0005] The utility model aims to provide a chassis layout structure of a pure electric rear-drive truck to solve the problem that the efficiency of the electric drive system and the endurance of the whole vehicle are reduced due to the excessive length of the high-voltage wiring harness.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pure electric rear-wheel drive truck chassis layout structure, including a frame, a battery pack, an integrated controller and a motor, the battery pack and the motor are both arranged on the frame, the integrated controller is located between the battery pack and the motor, the interface of the battery pack and the motor interface of the integrated controller are both facing the motor; a charging port bracket is provided on the frame, and the charging port frame is located on the side of the frame, and the projection of the charging port bracket along the width direction of the frame is opposite to the interface of the battery pack, and the charging port of the battery pack is arranged on the charging port bracket.

[0007] The beneficial effects of this solution are as follows:

[0008] The integrated controller in this solution is located between the battery pack and the motor. With the distance between the battery pack and the motor remaining unchanged, the distance between the integrated controller and either the battery pack or the motor is shorter. Therefore, the distances of the high-voltage harnesses between the integrated controller and the battery pack and between the integrated controller and the motor are both shorter, reducing the total length of the high-voltage harness used in the whole vehicle, lowering the cost of the whole vehicle, and at the same time improving the efficiency of the electric drive system and the endurance of the whole vehicle.

[0009] Furthermore, a cross beam is provided on the vehicle frame. The cross beam extends along the width direction of the vehicle frame and is located between the battery pack and the motor. The integrated controller is installed on the cross beam.

[0010] The beneficial effects of this solution are as follows: The cross beam in this solution provides an installation position for the integrated controller. Since the cross beam is horizontally arranged along the width direction of the vehicle frame, the integrated controller can select a suitable position on the cross beam to ensure that the distances between the integrated controller and the battery pack and the motor are both the shortest. Therefore, the position selection of the integrated controller is more convenient.

[0011] Furthermore, there are at least two cross beams, and all the cross beams are distributed at intervals in the length direction of the vehicle frame.

[0012] The beneficial effects of this solution are as follows: Two cross beams can better support the integrated controller. Compared with a plate-like structure, there is a gap between the two cross beams in this solution. When the vehicle is running, the airflow can cool the integrated controller more conveniently.

[0013] Furthermore, the connection position between the cross beam and the vehicle frame is located at the bottom of the vehicle frame.

[0014] The beneficial effects of this solution are as follows: Compared with being set at the top of the vehicle frame, the position of the cross beam in this solution is lower, and the integrated controller is lower when supporting the integrated controller, avoiding hindering the installation of the cargo box above.

[0015] Furthermore, a plurality of mounting components are provided between the battery pack and the vehicle frame. All the mounting components are distributed along the circumference of the battery pack. The mounting component includes an upper mounting plate and a lower mounting plate. Both the upper mounting plate and the lower mounting plate are L-shaped. The vertical part of the lower mounting plate is detachably connected to the battery pack, the vertical part of the upper mounting plate is detachably connected to the vehicle frame, and the horizontal parts of the upper mounting plate and the lower mounting plate are detachably connected.

[0016] The beneficial effects of this solution are as follows: In this solution, the contact area between the lower mounting plate and the battery pack is larger, which facilitates the installation using multiple fasteners, making the connection between the lower mounting plate and the battery pack more stable; similarly, the connection between the upper mounting plate and the vehicle frame is more stable, and the connection between the lower mounting plate and the upper mounting plate is also more stable, improving the fixing effect on the battery pack.

[0017] Furthermore, the mounting assembly further includes a T-shaped rod and a fixing block. The T-shaped rod vertically penetrates the transverse parts of the upper mounting plate and the lower mounting plate, and the fixing block is in threaded cooperation with the T-shaped rod.

[0018] The beneficial effects of this solution are as follows: When installing the battery pack in this solution, before installing the battery pack on the vehicle frame, the upper mounting plate and the lower mounting plate are respectively installed on the vehicle frame. When installing the battery pack, align the upper mounting plate and the lower mounting plate belonging to the same mounting assembly, pass through the T-shaped rod and screw the fixing block into a certain length to initially fix the battery pack. After initially fixing several T-shaped rods and fixing blocks, the battery pack can be released. At this time, the battery pack can be supported by the mounting assembly, and there is no need for manual long-term support of the battery pack, and the operation is simple. Description of the Drawings

[0019] Figure 1 is a perspective view of an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a perspective view of the upper mounting plate and the lower mounting plate after installation;

[0021] Figure 3 is Figure 1 an enlarged view of the battery pack interface, the integrated controller and the motor in Detailed Description of the Embodiment

[0022] The following is a more detailed description through specific embodiments:

[0023] The reference numerals in the accompanying drawings of the specification include: battery pack 1, battery pack interface 11, lower mounting plate 12, charging port bracket 2, integrated controller 3, charging interface 31, motor interface 32, charging port 4, motor 5, cross beam 6, vehicle frame 7, upper mounting plate 71, T-shaped rod 8, fixing block 81.

[0024] Embodiment

[0025] The embodiment is basically as Figure 1 and Figure 3As shown in the figure, a chassis layout structure of a pure electric rear-wheel drive truck includes a frame 7, a battery pack 1, an integrated controller 3, and a motor 5. In this embodiment, the frame 7, the battery pack 1, the integrated controller 3, and the motor 5 all adopt existing technologies. The left end of the frame 7 is the front end, and the right end is the rear end. The motor 5 is installed at the rear axle position of the frame 7. The battery pack 1 is installed on the frame 7, and the battery pack 1 is lower than the frame 7. There are multiple mounting components between the battery pack 1 and the frame 7, and all the mounting components are evenly distributed along the circumference of the battery pack 1. Please refer to Figure 2 , the mounting component includes an upper mounting plate 71, a lower mounting plate 12, two T-shaped rods 8, and two fixing blocks 81. Both the upper mounting plate 71 and the lower mounting plate 12 are L-shaped, and the vertical part of the lower mounting plate 12 is detachably connected to the outer shell of the battery pack 1 by four bolts. The vertical part of the upper mounting plate 71 is detachably connected to the frame 7 by four bolts. The horizontal parts of the upper mounting plate 71 and the lower mounting plate 12 are in contact with each other. The T-shaped rods 8 penetrate through the horizontal parts of the upper mounting plate 71 and the lower mounting plate 12 vertically, and the two fixing blocks 81 are respectively threadedly connected to the two T-shaped rods 8 to connect the horizontal parts of the upper mounting plate 71 and the lower mounting plate 12.

[0026] Both interfaces of the battery pack 1 face the rear. The left battery pack interface 11 is connected to the charging port 4 through a high-voltage wire harness. A charging port bracket 2 is installed on the left side of the frame 7 by bolts. The projection of the charging port along the width direction of the frame 7 is directly opposite to the left battery pack interface 11. The charging port 4 of the battery pack 1 is arranged on the charging port bracket 2, so the distance between the charging port 4 of the battery pack 1 and the battery pack interface 11 is shorter. In actual implementation, if the interface of the battery pack 1 close to the right side is connected to the charging port 4, the charging port bracket 2 is arranged on the right side of the frame 7 to make the distance between the charging port 4 of the battery pack 1 and the battery pack interface 11 the shortest.

[0027] There are two cross beams 6 between the battery pack 1 and the motor 5. Both cross beams 6 extend along the width direction of the frame 7, and there is a gap between the two cross beams 6. The two ends of the cross beam 6 are installed at the bottom of the frame 7 by bolts, so the top of the cross beam 6 is lower than the top of the frame 7.

[0028] The integrated controller 3 is disposed between the battery pack 1 and the motor 5, and the motor interface 32 of the integrated controller 3 faces backward. In actual implementation, if the integrated controller 3 with the charging interface 31 and the motor interface 32 in the same direction is adopted, then the charging interface 31 of the integrated controller 3 also faces backward at this time. The integrated controller 3 is installed on two cross beams 6. Specifically, the position of the integrated controller 3 on the cross beam 6 is determined according to the connection port between the motor 5 and the integrated controller 3 and the position of the motor interface 32 of the integrated controller 3, so that the connection port between the motor 5 and the integrated controller 3 is directly opposite to the motor interface 32 of the integrated controller 3. At this time, the high-voltage wire harness connects another interface of the battery pack 1 to the charging interface 31 of the integrated controller 3, and another high-voltage wire harness connects the motor interface 32 of the integrated controller 3 to the motor 5. At this time, the total length of the high-voltage wire harness of the whole vehicle is shorter, effectively improving the efficiency of the electric drive system and the endurance of the whole vehicle.

[0029] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A pure electric rear-drive truck chassis layout structure, including a frame, a battery pack, an integrated controller and a motor, wherein the battery pack and the motor are both arranged on the frame, characterized in that: The integrated controller is located between the battery pack and the motor, and the interface of the battery pack and the motor interface of the integrated controller are both facing the motor; a charging port bracket is provided on the frame, and the charging port frame is located on the side of the frame, and the projection of the charging port bracket along the width direction of the frame is opposite to the interface of the battery pack, and the charging port of the battery pack is arranged on the charging port bracket.

2. The chassis layout structure of a pure electric rear-wheel drive truck according to claim 1, characterized in that: A crossbeam is provided on the frame, the crossbeam extends along the width direction of the frame, and the crossbeam is located between the battery pack and the motor, and the integrated controller is installed on the crossbeam.

3. The chassis layout structure of a pure electric rear-wheel drive truck according to claim 2, characterized in that: At least two cross beams are provided, and all the cross beams are distributed in sequence with gaps along the length direction of the frame.

4. The chassis layout structure of a pure electric rear-wheel drive truck according to claim 3, characterized in that: The connection position between the crossbeam and the frame is located at the bottom of the frame.

5. The chassis layout structure of a pure electric rear-wheel drive truck according to claim 1, characterized in that: A plurality of mounting components are provided between the battery pack and the frame, and all the mounting components are distributed along the circumference of the battery pack. The mounting components include an upper mounting plate and a lower mounting plate, and both the upper mounting plate and the lower mounting plate are L-shaped. The vertical portion of the lower mounting plate is detachably connected to the battery pack, the vertical portion of the upper mounting plate is detachably connected to the frame, and the lateral portions of the upper mounting plate and the lower mounting plate are detachably connected.

6. The chassis layout structure of a pure electric rear-wheel drive truck according to claim 5, characterized in that: The mounting assembly also includes a T-shaped rod and a fixing block. The T-shaped rod vertically penetrates the lateral parts of the upper mounting plate and the lower mounting plate, and the fixing block is threadedly matched with the T-shaped rod.

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