Quick-Swap Battery Bracket Bottom-Entry Locking for Stable EV Packs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The battery box of electric trucks experiences poor locking stability due to the cantilever state of the lock shaft, leading to potential sliding and falling issues, especially with the heavy weight of the battery pack.
Innovation Solution
A quick-swapping bracket assembly with a vehicle body bracket and a lock base, where the lock base is fixed under the bracket, featuring an opening and slideway for the lock shaft, ensuring the battery box enters and locks from the bottom, distributing the load uniformly and preventing side slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lock shaft is used in a cantilever state to lock the battery box, then the structure is simple and easy to operate, but the stress capability is poor and the locking stability deteriorates
Solution Approach 1:
The patent inverts the traditional side-entry locking mechanism into a bottom-entry mechanism. The lock shaft transitions from a cantilever state (side entry) to a supported state (bottom entry), where the lock base provides support from below. This inversion fundamentally changes the stress distribution, allowing the lock shaft to bear loads uniformly along its length rather than concentrating stress at the mounting point, thereby significantly improving locking stability while maintaining operational simplicity.
2Ease of manufacture
If the lock shaft enters the lock base from the side, then the installation is simple, but the lock shaft is prone to sliding out and falling due to poor stress distribution
Solution Approach 1:
The patent changes the dimensional approach of lock shaft entry from horizontal (side entry) to vertical (bottom entry). By having the lock shaft enter from the bottom through the lock base, the system utilizes the vertical dimension to provide gravitational and structural support. This dimensional change ensures that the lock shaft is supported along its entire length, preventing the harmful effects of sliding and falling while maintaining manufacturing simplicity through the use of standard mounting components.
Data Source
AI summary
A quick-swapping bracket assembly with high locking stability and electric vehicle comprising the same, the quick-swapping bracket assembly comprises a vehicle body bracket and a lock base. The lock base is fixed onto the electric vehicle by means of the vehicle body bracket, the opening of the lock base is arranged at the bottom, and the battery box enters the slideway through the opening at the bottom, so that the battery box is locked in the slideway and avoid the battery box entering the slideway from the side of the lock base, which can avoid the lock shaft being skidded out from one side of the lock base and improve the safety of the battery box being locked.