Box body, battery device and vehicle
By designing an integrated base plate, frame, and beam structure within the battery pack housing, the problem of limited structural space was solved, improving the rigidity and vibration fatigue resistance of the battery pack, and enhancing the safety and reliability of the vehicle.
CN224355331UActive Publication Date: 2026-06-12BEIJING AUTOMOBILE RES GENERAL INST
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202521079500.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-12
- Estimated Expiration
- 2035-05-28
AI Technical Summary
Technical Problem
Limited structural space in battery devices prevents the placement of internal connection points, leading to reduced stiffness, decreased frequency, excessive local structural stress, fatigue cracking, and compromised vehicle safety.
Method used
The box-type structure adopts a unified design of base plate, frame and beam. By integrating the first and second frame, first beam and electrical area base plate into one unit, the load-bearing interface is expanded and the structural rigidity and vibration fatigue resistance are enhanced.
Benefits of technology
Improve the rigidity and vibration fatigue resistance of the housing structure, reduce the deformation amplitude during vibration, and enhance the safety and reliability of the battery device.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a box body, a battery device and a vehicle. The box body comprises a bottom plate and a frame, the frame is arranged on the peripheral side of the bottom plate in a surrounding mode, and a containing space is defined by the frame; a first beam is arranged in the containing space, extends in the first direction and is connected with the frame in the second direction so that the containing space can be divided into an electrical area and an energy area which are separated from each other. The bottom plate comprises an energy area bottom plate and an electrical area bottom plate, the frames comprise first frames oppositely arranged in the first direction and second frames oppositely arranged in the second direction, and the second frames participating in limiting the electrical area, the electrical area bottom plate and the first beam are constructed into an integrated piece. Therefore, the bearing interface can be enlarged, the structural rigidity, especially the bending and torsional rigidity, of the box body can be remarkably improved, the structural rigidity and the vibration fatigue resistance of the box body can be improved, the rigidity and the modal dominant frequency of the battery device can be improved, and the deformation amplitude of the box body structure in the vibration process is reduced, so that the stress level is reduced, and the fatigue strength is improved.
Need to check novelty before this filing date? Find Prior Art