An integrated frame cross member structure for mid-mounting a battery
By designing an integrated cast frame crossbeam, the problem of heavy weight of traditional sheet metal structures was solved, achieving the high range and lightweight requirements of new energy commercial vehicles, improving mechanical performance and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI HEAVY DUTY AUTOMOBILE CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-21
Smart Images
Figure CN224528776U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive chassis technology, and in particular to an integrated frame beam structure for a centrally located battery. Background Technology
[0002] With the continuous innovation and development of new energy commercial vehicle technology, there is a growing demand for large-capacity battery assembly to meet the needs of long-distance and medium-distance transportation scenarios, while ensuring that the load capacity is not reduced, lower power consumption requirements, higher vehicle lightweighting requirements, higher overall vehicle safety requirements, and the need to meet strength requirements.
[0003] The existing vehicle frame crossbeams are made of sheet metal, and the various parts are fixedly connected by riveting. Sheet metal crossbeams are heavy and bulky. As new energy vehicles have greater requirements for driving range and lighter weight, traditional sheet metal crossbeams cannot meet the structural requirements of new energy commercial vehicles. Utility Model Content
[0004] The purpose of this utility model is to provide an integrated frame crossbeam structure for a mid-mounted battery, which solves the requirements of high range and lightweight for new energy commercial vehicles, and solves the problems of redundancy, heavy weight and poor mechanical performance of traditional riveted crossbeam structures.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] An integrated frame crossbeam structure for a centrally located battery, wherein the frame crossbeam is a one-piece molded structure; taking the direction between two frame longitudinal beams as the X-direction, the crossbeam has an "H"-shaped cross-section in the X-direction, and taking the height direction of the frame longitudinal beams as the Z-direction, the crossbeam has an "I"-shaped cross-section in the Z-direction.
[0007] Preferably, the crossbeams of the vehicle frame are symmetrical in the X direction and in the Z direction.
[0008] Preferably, the horizontal arms at the top and bottom of the "H"-shaped structure transition into an arc between the two vertical arms.
[0009] Preferably, the middle part of the "H"-shaped structure and the middle part of the "I"-shaped structure have a rounded transition.
[0010] Preferably, the frame crossbeam is a cast crossbeam.
[0011] Preferably, the crossbeam of the vehicle frame is provided with a number of wire-passing holes.
[0012] Preferably, the crossbeam of the vehicle frame is provided with a plurality of embedded threaded connecting seats.
[0013] Preferably, the crossbeam of the vehicle frame is provided with a number of drainage holes.
[0014] Preferably, the "I"-shaped structure is provided with several bolt holes.
[0015] Preferably, the frame crossbeams are located in the middle of the frame, and the modular power battery is located between two of the frame crossbeams.
[0016] The beneficial effects of this utility model are:
[0017] This utility model adopts a casting process and an integral molding structure to meet the requirements of modular power battery layout and the requirements of high and low voltage wiring harnesses and brackets for new energy commercial vehicles. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the crossbeam arrangement structure of the vehicle frame of this utility model;
[0019] Figure 2 This is a schematic diagram of the crossbeam structure of the vehicle frame of this utility model. Figure 1 ;
[0020] Figure 3 This is a schematic diagram of the crossbeam structure of the vehicle frame of this utility model. Figure 2 .
[0021] 1. Frame crossbeam; 2. Modular power battery; 11. Cable guide hole; 12. Embedded threaded connector; 13. Hollow structure; 14. Drain hole; 15. Arc. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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" and "second" are only used for distinction in description and have no special meaning.
[0026] like Figure 1-3 As shown: An integrated frame crossbeam structure for a mid-mounted battery, the frame crossbeam 1 is a one-piece molded structure; the frame crossbeam 1 adopts a one-piece molded structure, which reduces the weight by 36%, meets the requirements of modular battery layout, meets the requirements of electromagnetic valve body, high and low voltage wiring harness and bracket layout of new energy commercial vehicles, and can be applied to the chassis of various new energy commercial vehicles such as pure electric and fuel cell vehicles, reducing the impact of chassis lightweighting caused by the increase in battery pack weight;
[0027] Taking the direction between the two longitudinal beams of the frame as the X-direction, the cross section of the frame crossbeam 1 in the X-direction has an "H"-shaped structure. Taking the height direction of the longitudinal beams of the frame as the Z-direction, the cross section of the frame crossbeam 1 in the Z-direction has an "I"-shaped structure. Furthermore, the cross beam 1 in the X-direction is symmetrical, and the cross beam 1 in the Z-direction is also symmetrical.
[0028] The "H" shaped structure transitions from the horizontal arms at the top and bottom to the arc 15 between the two vertical arms.
[0029] The middle of the "H"-shaped structure transitions with the middle of the "I"-shaped structure using a rounded transition. Preferably, the two semicircular arcs serve as wire guide holes.
[0030] The above-mentioned frame crossbeam 1 has been optimized in shape based on stress analysis to improve strength performance, resulting in a better structure.
[0031] The frame crossbeam 1 is a cast crossbeam. The frame crossbeam 1 adopts a casting process and a one-piece structure, which simplifies the part structure, solves the stress concentration problem caused by the riveting of the connecting plate and the crossbeam, reduces the number of parts, and lowers the production process cost; the assembly process is simple and has good manufacturability.
[0032] The frame crossbeam 1 is provided with several wire passing holes 11. Preferably, the middle vertical arm of the "H"-shaped structure is provided with two elongated holes as wire passing holes.
[0033] The frame crossbeam 1 is provided with several embedded threaded connectors 12. Preferably, three embedded threaded connectors 12 are provided on each of the upper and lower cross arms of the "H"-shaped structure, which are used to fix the high and low voltage wiring harnesses, reduce assembly stress, and have good mechanical properties.
[0034] Several drainage holes 14 are provided on the crossbeam 1 of the frame.
[0035] The "I"-shaped structure has several bolt holes. These bolt holes are used for bolt and nut connections on the longitudinal beams of the frame. Two hollow structures are formed between the upper and lower longitudinal arms and between the middle vertical arm of the "I"-shaped structure to meet lightweight requirements.
[0036] The frame crossbeam 1 is located in the middle of the frame, and the modular power battery 2 is located between the two frame crossbeams 1. The integrated centrally located battery crossbeam is specifically designed for pure electric and fuel cell commercial vehicles, reducing the impact of high range and large capacity on chassis lightweighting in new energy commercial vehicles. The integrated centrally located battery crossbeam has a small X-axis space occupation, modular design, and strong compatibility, and can be adapted to the modular power battery needs of different market and operating conditions.
[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An integrated frame crossbeam structure for a mid-mounted battery, characterized in that, The vehicle frame cross beam (1) is of an integrally formed structure; taking the direction between the two vehicle frame longitudinal beams as the X direction, the X-direction cross section of the vehicle frame cross beam (1) is an "H" shape structure, and taking the height direction of the vehicle frame longitudinal beam as the Z direction, the Z-direction cross section of the vehicle frame cross beam (1) is an "I" shape structure.
2. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 1, characterized in that, The X-direction structure of the vehicle frame cross beam (1) is symmetric, and the Z-direction structure of the vehicle frame cross beam (1) is symmetric.
3. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 2, characterized in that, The upper and lower cross arms of the "H" shape structure are transitioned to the arc (15) between the two longitudinal arms.
4. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 3, characterized in that, There is an arc transition between the middle part of the "H" shape structure and the middle part of the "I" shape structure.
5. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 4, characterized in that, The vehicle frame cross beam (1) is a cast cross beam.
6. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 5, characterized in that, A number of wire passing holes (11) are provided on the vehicle frame cross beam (1).
7. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 5, characterized in that, A number of embedded threaded connection seats (12) are provided on the vehicle frame cross beam (1).
8. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 5, characterized in that, A number of drain holes (14) are provided on the vehicle frame cross beam (1).
9. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 5, characterized in that, A number of bolt holes are provided on the "I" shape structure.
10. The integrated frame crossbeam structure for a mid-mounted battery as described in claim 9, characterized in that, The vehicle frame cross beam (1) is arranged in the middle of the vehicle frame, and the modular power battery (2) is arranged between the two vehicle frame cross beams (1).