Battery Case Mounting Structure for Stable Chassis Connection
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Solution Overview
Problem
Existing battery boxes in electric vehicles experience unstable connections between mounting portions and the vehicle chassis due to complex load stress, which can lead to connection failure, affecting driving safety.
Innovation Solution
A battery box design with a mounting apparatus at the central position and circumferential mounting portions, distributing load stress more evenly and enhancing connection stability by integrating a mounting sleeve and connection structure for secure attachment to the vehicle chassis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mounting portions are distributed circumferentially on the battery box, then the battery can be securely mounted to the vehicle chassis, but the complex load stress causes unstable connections and connection failures
Solution Approach 1:
The patent divides the mounting function into two separate systems: a central mounting apparatus that bears the primary load stress, and circumferential mounting portions that provide secondary support and positioning. This segmentation allows the central mounting apparatus to handle the complex load stress while the circumferential portions provide stable auxiliary support, resolving the contradiction between secure mounting and connection stability under stress.
2Force
If mounting portions bear complex load stress, then the battery can be supported, but the connection between mounting portions and vehicle chassis becomes unstable
Solution Approach 1:
The patent introduces a central mounting apparatus as an intermediary element between the battery box and the vehicle chassis. This central mounting apparatus acts as a mediator that distributes and manages the complex load stress, preventing direct transmission of unstable forces to the circumferential mounting portions, thereby maintaining connection stability while preserving load bearing capacity.
3Device complexity
If only circumferential mounting portions are used, then the battery box structure is simple, but the connection stability under load is insufficient
Solution Approach 1:
The patent merges two mounting approaches into a unified system: the central mounting apparatus provides primary connection stability, while the circumferential mounting portions provide secondary support. This combination achieves reliable connections under load while keeping the overall structure relatively simple, as both mounting systems work together synergistically rather than requiring completely separate mounting solutions.
Data Source
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AI summary
A battery box, a battery (100), and an electric device (200) are disclosed. The battery box has an accommodation space (13), and the battery box includes: a bottom plate (14) provided with a first through hole (15); and a mounting apparatus (30) including a mounting block (31) and a connection structure (32), where the mounting block (31) is disposed on a side of the bottom plate (14) facing the accommodation space (13), the mounting block (31) is aligned with the first through hole (15), the connection structure (32) passes through the first through hole (15) and has one end connected to the mounting block (31), and the other end of the connection structure (32) is configured to be connected to a fixed installation body. This solution addresses the issue in existing battery packs where the mounting portions, due to bearing complex load stress, are prone to unstable connections with the vehicle chassis.