Connecting structure for battery pack and chassis of light truck
By eliminating the chassis crossbeams in the connection structure between the battery pack and the chassis of the light truck, and using internal crossbeams directly connected to the chassis longitudinal beams, the problems of low ground clearance of the battery pack and high vehicle weight are solved, thereby improving passability and range, while simplifying the installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU XCMG NEW ENERGY POWER TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-05
AI Technical Summary
In existing technologies, when the battery pack of a new energy light commercial vehicle is placed in the middle of the chassis, in order to avoid the chassis crossbeam, the ground clearance of the battery pack is small, resulting in poor vehicle passability and heavy vehicle weight, which affects the range.
The battery pack adopts a connection structure between the light truck battery pack and the chassis. It is fixedly connected to the chassis longitudinal beam through an internal crossbeam, eliminating the chassis crossbeam. The internal crossbeam of the battery pack replaces the chassis crossbeam, increasing the direct connection between the battery pack and the chassis longitudinal beam. It is fixed with bolts, eliminating the traditional connecting frame and simplifying the installation process.
The battery pack's ground clearance is increased, reducing the overall vehicle weight, improving the vehicle's passability and range, simplifying the installation process, and improving the battery pack's assembly efficiency and maintenance convenience.
Smart Images

Figure CN224197578U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery pack installation technology, specifically relating to the connection structure between a light truck battery pack and the chassis. Background Technology
[0002] Currently, new energy light commercial vehicles are widely used. The battery pack is located in the middle of the chassis and has a certain height. In order to avoid the chassis crossbeams, the battery pack often needs to be arranged downwards, either through a battery pack mounting bracket or directly fixed to the crossbeam. This results in a small ground clearance for the battery pack and poor overall vehicle passability. Moreover, with both the battery pack and crossbeams on the chassis, the overall vehicle weight is large, affecting the vehicle's range. Utility Model Content
[0003] The purpose of this utility model is to provide a connection structure between a light truck battery pack and the chassis, which can effectively increase the ground clearance of the battery pack, reduce the weight of the vehicle, and improve the vehicle's range.
[0004] To achieve the above objectives, the present invention provides a light truck battery pack and chassis connection structure, including a battery pack and chassis longitudinal beams arranged parallel to each other at the bottom of the vehicle body. The battery pack includes a side frame and an internal crossbeam located within the side frame. The internal crossbeam is fixedly connected to the side frame. The battery pack is located between two sets of chassis longitudinal beams and is fixedly connected to the chassis longitudinal beams through the internal crossbeam.
[0005] As a further embodiment of this utility model: the internal crossbeam extends outward to connect the battery pack to the chassis longitudinal beam.
[0006] As a further embodiment of this utility model: threaded holes are provided on the internal crossbeam, and the chassis longitudinal beam is connected and fixed to the internal crossbeam by bolts.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] By removing the crossbeams between the longitudinal beams of the vehicle chassis and allowing the crossbeams inside the battery pack to act as the chassis crossbeams, the battery pack and the longitudinal beams of the vehicle chassis are directly connected by bolts. This eliminates the need for connecting brackets between the chassis and the battery pack, effectively reducing the weight of the entire vehicle. At the same time, the battery pack can be moved upwards in the spatial position of the vehicle, effectively raising the lowest point of the vehicle, increasing the minimum ground clearance, and improving the vehicle's passability. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the connection structure between the battery pack and the chassis of the light truck of this utility model.
[0010] Figure 2 This is a bottom view structural diagram of the connection structure between the light truck battery pack and the chassis of this utility model.
[0011] Figure 3This is a schematic diagram of the internal structure of the battery pack in the connection structure between the battery pack and the chassis of this utility model light truck.
[0012] In the diagram: 1. Battery pack, 2. Chassis longitudinal beam, 3. Bolt, 4. Internal crossbeam, 5. Side frame. Detailed Implementation
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] like Figures 1 to 3 As shown, the light truck battery pack and chassis connection structure includes a battery pack 1 and chassis longitudinal beams 2 arranged parallel to each other at the bottom of the vehicle body. The battery pack 1 includes a side frame 5 and an internal crossbeam 4 located within the side frame 5. The internal crossbeam 4 is fixedly connected to the side frame 5. The battery pack 1 is located between two sets of chassis longitudinal beams 2 and is fixedly connected to the chassis longitudinal beams 2 through the internal crossbeam 4.
[0015] By replacing the original chassis crossbeam with the internal crossbeam 4 of the battery pack 1, the lowest point of the vehicle can be raised, improving the overall passability. Moreover, the elimination of the chassis crossbeam allows the internal crossbeam 4 of the battery pack 1 to maintain the structural stability of the vehicle while greatly reducing the weight of the vehicle and enhancing its range.
[0016] To facilitate the installation and fixation of the battery pack 1, the internal crossbeam 4 extends outward from the battery pack 1 and is fixedly connected to the chassis longitudinal beam 2. The internal crossbeam 4 extends to the outside of the battery pack 1, which facilitates the corresponding connection between the battery pack 1 and the chassis longitudinal beam 2.
[0017] Furthermore, threaded holes are provided on the internal crossbeam 4, and the chassis longitudinal beam 2 is connected and fixed to the internal crossbeam 4 by bolts 3. Since the threaded holes are directly on the internal crossbeam 4, which extends to the outside of the battery pack 1, the battery pack 1 can be installed and fixed simply by using bolts 3 corresponding to the threaded holes, greatly improving the assembly efficiency of the battery pack 1. The direct connection between the battery pack 1 and the chassis longitudinal beam 2 also eliminates the traditional installation method using a connecting frame, making the installation of the battery pack 1 simple and convenient, and effectively reducing weight.
[0018] In a specific implementation of this utility model, the battery pack 1 is assembled according to specifications and, after testing, is fixedly installed on the chassis longitudinal beam 2 using the threaded holes on the internal crossbeam 4 and bolts 3. The installation operation is simple and convenient, greatly improving the installation convenience of the battery pack 1 and facilitating the replacement and maintenance of the battery pack 1.
Claims
1. A light truck battery pack and chassis connection structure, comprising a battery pack (1) and chassis longitudinal beams (2) arranged parallel to each other at the bottom of the vehicle body, characterized in that, The battery pack (1) includes a side frame (5) and an internal crossbeam (4) located within the side frame (5). The internal crossbeam (4) is fixedly connected to the side frame (5). The battery pack (1) is located between two sets of chassis longitudinal beams (2) and is fixedly connected to the chassis longitudinal beams (2) through the internal crossbeam (4).
2. The connection structure between the light truck battery pack and the chassis according to claim 1, characterized in that, The internal crossbeam (4) extends outward to the battery pack (1) and is fixedly connected to the chassis longitudinal beam (2).
3. The connection structure between the light truck battery pack and the chassis according to claim 1 or 2, characterized in that, The internal crossbeam (4) has threaded holes, and the chassis longitudinal beam (2) is connected and fixed to the internal crossbeam (4) by bolts (3).