Overlapping Battery Housings for Work Vehicle Turning Clearance
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Solution Overview
Problem
Existing electric work vehicles and tractors face limitations in battery storage capacity due to space constraints in their main housing, and they often lack separate battery housings to increase power storage capacity without compromising motive operation, such as wheel turning.
Innovation Solution
The design includes a vehicle with a main body, front and rear wheels, and two separate battery housings - one located forward of the rear wheels and overlapping partially with the other. This configuration allows for increased battery storage space without hindering the turning capability of the front wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single housing is used to store batteries in known electric work vehicles, then the structure is simple, but the battery storage capacity is limited due to space constraints in the main housing
Solution Approach 1:
The battery housing is divided into a first housing and a second housing that are separate from each other. The first housing stores first battery modules while the second housing stores second battery modules, allowing independent placement and expansion of battery capacity without requiring a single large housing structure.
Solution Approach 2:
The first housing and second housing are positioned such that they at least partially overlap with each other. This nested arrangement allows both housings to occupy partially the same spatial envelope, effectively increasing battery storage capacity without proportionally increasing the overall vehicle footprint.
2Quantity of substance
If battery storage space is increased in known electric work vehicles, then the power supply capacity improves, but the turning capability of front wheels is adversely affected
Solution Approach 1:
The first housing and second housing are arranged in an overlapping configuration where they extend in different spatial dimensions. This dimensional arrangement allows the battery housings to utilize vertical and lateral spaces that would otherwise be available for wheel movement, thereby preserving turning capability while increasing storage capacity.
Solution Approach 2:
The battery housings are positioned in specific locations that do not interfere with the turning radius of the front wheels. The first housing is located at a first position and the second housing at a second position, with their overlapping arrangement strategically placed to maximize battery capacity while maintaining clear pathways for wheel rotation.
Data Source
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AI summary
A work vehicle includes a main body, at least one front wheel (41R,41L) supported by the main body, at least one rear wheel (42L) supported by the main body, a first housing (60) to house one or more first battery modules (61), and a second housing (70) to house one or more second battery modules (71). The first housing at least partially overlaps the second housing, is located above the second housing in a vertical direction of the work vehicle, and extends beyond and overhangs the second housing.