Road Smoothing Blade Assembly With Integrated Motor Cooling Fan
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Solution Overview
Problem
Existing work machines for smoothing road surfaces face challenges in maintaining efficient cooling performance, which affects battery output stability and lifespan, particularly when high-capacity batteries are used.
Innovation Solution
Incorporating a fan to cool the motor between the motor and the blade, with specific configurations to manage weight, visibility, and rotational load, ensuring efficient cooling and reduced component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a high-output battery having a large capacity is mounted on a work machine, then work can be performed for a long time, but a work machine having excellent cooling performance is desired from the viewpoint of stabilization of battery output and prolongation of battery life
Solution Approach 1:
A fan is introduced as an intermediary cooling device positioned between the motor and the blade. The fan actively circulates air to cool the motor, which in turn helps maintain stable battery output and prolong battery life by preventing overheating during extended operation periods.
Solution Approach 2:
The fan is configured to rotate together with the blade, utilizing the blade's rotational motion to drive the fan. This self-service arrangement eliminates the need for a separate power source for the fan, as it is powered by the motor's output through the blade's rotation, thereby cooling the motor during operation without additional energy consumption.
2Temperature
If a fan is added to cool the motor, then cooling performance is improved, but device complexity increases
Solution Approach 1:
The fan is merged with the blade assembly, with the fan positioned between the motor and the blade. Both the blade and fan share the same rotational axis and are driven by the same motor, combining cooling functionality with the existing blade structure rather than adding a completely separate cooling system.
Solution Approach 2:
The rotating assembly serves multiple functions: the blade performs the road surface smoothing function while the fan simultaneously provides cooling for the motor. This multi-functionality reduces the need for separate dedicated cooling components, thereby limiting the increase in device complexity.
3Temperature
If the fan is positioned between the motor and the blade, then cooling performance is improved, but rotational load on the motor increases
Solution Approach 1:
The fan is designed with a thin, flexible blade structure that allows air to pass through while minimizing the mass and rotational inertia. This reduces the additional rotational load imposed on the motor while still achieving effective cooling through air circulation.
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
The solution stabilizes battery output and prolongs battery life by enhancing cooling performance, improving workability and reducing rotational load on the motor.
Implementation Method 1
a fan that cools the motor and is provided between the motor and the blade
Data Source
AI summary
A work machine that smooths a road surface by rotating a blade contacting the road surface, the work machine comprises: a motor that rotates the blade; and a fan that cools the motor and is provided between the motor and the blade.