Electric Work Vehicle Hood Charging Port Layout
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Solution Overview
Problem
In electric tractors, the placement of work devices on either side of the driving section often obstructs the connection of an external charger to the battery, making it difficult to charge the battery efficiently.
Innovation Solution
The charger connector section is relocated to the front portion of the hood, allowing easy access and reducing the length of connecting harnesses, while being protected by a cover to prevent water and dust intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the connector section is placed on the lateral side of the steering wheel in the driving section, then the connector is protected within the body structure, but the connection becomes difficult when work devices are positioned on the right and left sides of the driving section
Solution Approach 1:
The connector section is extracted from the driving section and relocated to the front portion of the hood, separating it from the area where work devices are positioned. This extraction eliminates the obstruction problem while maintaining protection within the body structure.
Solution Approach 2:
The connector section is moved from a lateral position in the driving section to a front-facing position on the hood, changing the spatial dimension of access. This allows charging operations to be performed from the front of the vehicle rather than from the side, avoiding interference with work devices.
2Ease of operation
If the connector section is moved to the front portion of the hood, then the charger can be easily connected from the front, but the connector may be exposed to environmental elements like rain and dust
Solution Approach 1:
A cover portion is provided that can open and close over the connector section. This flexible covering mechanism protects the connector from environmental elements like rain and dust while allowing easy access for charging operations when needed.
3Length of stationary object
If the battery is placed within the hood, then the connector section can be positioned close to the battery, but the hood space becomes more crowded
Solution Approach 1:
The hood interior space is segmented into different functional zones, with the battery positioned in a lower or rear portion and the connector section in a front portion. This segmentation allows both components to coexist in the limited hood space while maintaining a relatively short harness connection between them.
Data Source
AI summary
An electric work vehicle includes a hood 4 in a front portion of a body and a driving section 5 behind the hood 4. The electric work vehicle includes a connector section 39 to which a charger is connected to charge a battery, and the connector section 39 is in a front portion of the hood 4.