Vehicle Battery Quick-Release Wedge Fastening Mechanism
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Solution Overview
Problem
Conventional electric bus battery systems are cumbersome to maintain, prone to damage from road vibrations, and lack effective quick-release mechanisms, leading to time-consuming and labor-intensive maintenance processes, with inadequate dustproof and waterproof protection.
Innovation Solution
A modular vehicle battery device with a quick-release fastening mechanism using a screw, washer, spring, fixing board, and wedge-shaped fixing block, along with a reinforced bottom base and hanging-fixing element, to securely fasten and easily remove the battery, preventing Z-direction jerks and facilitating maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stationary storage racks are used to mount power packs, then the power packs are securely fixed, but the maintenance process becomes time-consuming and laborious due to the need to completely remove and replace entire power pack assemblies
Solution Approach 1:
The power pack assembly is segmented into modular battery modules that can be independently removed and replaced. Each battery module can be quickly exchanged without affecting other modules, enabling rapid maintenance while maintaining secure fixation of the overall power pack assembly through the retaining structure.
2Reliability
If conventional bolted covers and multiple fasteners are used to prevent Z-direction vibration, then the power packs are protected from road vibrations, but the mounting and demounting process becomes lengthy and the weight increases
Solution Approach 1:
The complex multi-bolt fastening system is extracted and replaced with a simplified retaining structure comprising retaining members that engage with corresponding features on the battery modules. This extraction eliminates unnecessary fasteners while maintaining effective protection against Z-direction vibrations through the busbar-integrated retaining members.
Solution Approach 2:
The retaining function is merged with the busbar structure, combining the electrical connection function and mechanical retention function into a single integrated component. This merging eliminates separate fastening mechanisms, reducing complexity and weight while maintaining vibration protection through the structurally sound busbar-retaining member assembly.
3Reliability
If conventional stationary storage racks are used, then power packs are securely mounted, but dustproof and waterproof protection is inadequate and long-term maintenance cost increases
Solution Approach 1:
A waterproof and dustproof sealing structure is implemented using gaskets or sealing films between the power pack assembly and the storage rack, and between individual battery modules. This flexible sealing approach provides effective protection against dust and water intrusion while maintaining mounting security, without requiring expensive rigid sealed enclosures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick mounting and demounting of batteries, reduces maintenance time, and enhances durability and protection against dust and water, while maintaining structural integrity and cost efficiency.
Implementation Method 1
at least a quick-release unit comprising a screw, a washer, a spring, a fixing board and a wedge-shaped fixing block
Implementation Method 2
a wedge-shaped recess is disposed on an upper surface of the vehicle battery, and a wedge-shaped fastening hole is disposed in the fixing board, allowing the wedge-shaped fixing block to penetrate the wedge-shaped fastening hole and engage with the wedge-shaped recess
Data Source
AI summary
A vehicle battery device comprises a box for receiving therein at least a vehicle battery, wherein a fastening platform is disposed on an inner sidewall surface of the box, and support boards is disposed at a bottom of the fastening platform; an upper lid disposed above the box and separated from the box by a waterproof plastic sheet; and at least a quick-release unit comprising a screw, washer, spring, fixing board, and wedge-shaped fixing block, with the at least a quick-release unit fastened between the fastening platform and the vehicle battery, wherein a wedge-shaped recess is disposed on an upper surface of the vehicle battery, and a wedge-shaped fastening hole is disposed in the fixing board, allowing the wedge-shaped fixing block to penetrate the wedge-shaped fastening hole and engage with the wedge-shaped recess, thereby allowing the vehicle battery to be fixed in place inside the box.