Replaceable Battery Venting Layout for Safer Vehicle Swapping
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Solution Overview
Problem
Existing replaceable batteries for vehicles do not adequately ensure worker safety during battery replacement when gas is discharged from the relief valve.
Innovation Solution
A replaceable battery design with a pull-handle on one lid part and a relief valve on the opposite lid part, ensuring gas discharge away from the worker, along with a metal cover protecting connectors and a rotatable grip-handle for safe handling and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the relief valve is provided on the same side as the worker during battery replacement, then gas can be discharged efficiently, but worker safety is compromised due to direct exposure to discharged gas
Solution Approach 1:
The relief valve is extracted from the worker's side and relocated to the opposite side of the battery case. This spatial separation removes the harmful gas discharge function from proximity to the worker, eliminating the safety hazard while preserving the gas discharge capability through the relief valve.
Solution Approach 2:
The battery case structure itself acts as an intermediary barrier between the relief valve and the worker. By positioning the relief valve on the opposite side, the battery case body serves as a physical mediator that blocks and redirects the discharged gas away from the worker's working area.
2Ease of operation
If the connector is exposed without protection, then connection to the vehicle is easier, but the connector is vulnerable to damage from discharged gas and external impacts
Solution Approach 1:
The connector assembly is segmented into a functional connection portion and a protective cover portion. The cover can be opened to facilitate connection operations and closed to provide protection, allowing the system to switch between ease of operation and reliability modes as needed.
Solution Approach 2:
A protective cover is provided beforehand to shield the connector from potential damage by discharged gas and external impacts. The cover acts as a preemptive protective barrier that can be opened when connection is needed and closed when protection is required.
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
Ensures worker safety by directing gas discharge away from the worker and protecting connectors, facilitating easy handling and storage while maintaining connection integrity.
Implementation Method 1
a relief valve through which gas generated from the cell stack is discharged
Data Source
AI summary
A replaceable battery according to the present disclosure is a replaceable battery mounted on a vehicle so as to be removable by sliding the replaceable battery in a longitudinal direction, the replaceable battery including: a rectangular parallelepiped cell stack having a plurality of battery cells stacked thereon; and a case for accommodating the cell stack. The case includes a rectangular tube shaped main body part, a first lid part for closing one opening end of the main body part, and a second lid part for closing an other opening end of the main body part. The first lid part is provided with a pull-handle, and the second lid part is provided with a connector protruding outward so as to be connected to a vehicle, and a relief valve through which gas generated from the cell stack is discharged.