EV Battery Slide-Rail Frame for Faster Battery Swapping
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Solution Overview
Problem
Existing battery replacement techniques in electric powered vehicles require a step of removing and setting aside batteries with low state of charge, reducing work efficiency.
Innovation Solution
A frame structure with front and rear slide rails on the vehicle width direction to guide and support the battery, allowing simultaneous insertion of a charged battery and removal of a low-state battery, enhanced by a battery reinforcement frame and stopper mechanism to facilitate easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a battery is removed and set aside using a forklift truck or lifting platform trolley, then the battery can be replaced, but the work efficiency of battery replacement is reduced due to multiple steps required
Solution Approach 1:
The battery replacement process is segmented into two simultaneous operations: inserting a charged battery from one end of the slide rails and removing a discharged battery from the other end. This segmentation allows parallel processing of battery insertion and removal, eliminating the need to set aside discharged batteries and significantly improving replacement efficiency.
Solution Approach 2:
The patent combines the functions of battery insertion and removal into a single integrated process using the slide rail system. Both operations occur simultaneously through the same structural mechanism, merging what were previously separate steps into one coordinated action, thereby reducing overall replacement time and complexity.
2Ease of operation
If a battery is mounted under a seat or in a bottom portion of the vehicle body, then the battery can be accessed, but the replacement process requires multiple steps and reduces work efficiency
Solution Approach 1:
The slide rails provide a dynamic replacement mechanism where batteries can be smoothly inserted and removed along the rail length. This dynamic system allows the battery to move freely during replacement while maintaining proper positioning, combining ease of access with efficient one-step replacement operation.
3Reliability
If two batteries are held in two respective holding brackets placed in two stages, then the batteries can be secured, but the replacement process requires removing and setting aside batteries, reducing work efficiency
Solution Approach 1:
The holding brackets are segmented and distributed at different positions along the slide rails, allowing independent engagement with batteries at different stages of the replacement process. This segmentation enables one battery to be secured while another is being replaced, maintaining reliability without compromising efficiency.
Solution Approach 2:
The slide rails act as an intermediary mechanism between the holding brackets and the battery replacement process. They transmit and coordinate the forces and movements required for both securing batteries in place and enabling their removal, facilitating smooth transitions during replacement while maintaining secure holding when needed.
Data Source
AI summary
A frame structure of an electric powered vehicle is for supporting a battery of the electric powered vehicle in which a frame constitutes a chassis, and the frame structure of the electric powered vehicle includes: a front slide rail that is provided on the frame between a front wheel and a rear wheel of the electric powered vehicle over a vehicle width direction and guides and supports a front end side of a battery; and a rear slide rail that is provided on the frame between the front wheel and the rear wheel of the electric powered vehicle over the vehicle width direction and guides and supports a rear end side of the battery.