Pressure Washer Heat Dissipation Air Path
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Solution Overview
Problem
Existing pressure washers have poor heat dissipation due to reliance on a single cooling fan for the control board, leading to inefficient heat management.
Innovation Solution
The pressure washer design incorporates a heat dissipation air path within the housing, which includes an air inlet and an air outlet, and positions the battery holder, power management board, and control board sequentially along this path to enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single cooling fan is used for heat dissipation, then the device complexity is reduced, but the heat dissipation effect deteriorates
Solution Approach 1:
The housing is divided into multiple compartments (battery holder compartment, control board compartment, power management board compartment) with dedicated air inlet and air outlet channels for each section. This segmentation allows independent heat dissipation paths for different components, improving overall heat dissipation efficiency without requiring a single complex cooling system.
Solution Approach 2:
Air is introduced as an intermediary heat transfer medium through designated air inlet channels, flowing sequentially through the battery holder, control board, and power management board compartments, then exiting through air outlet channels. This intermediary air flow enables efficient heat transfer from multiple components simultaneously, replacing the need for a single cooling fan while improving heat dissipation effectiveness.
2Temperature
If multiple components are arranged sequentially on a heat dissipation air path, then the heat dissipation effect is improved, but the device complexity increases
Solution Approach 1:
The air inlet channels and air outlet channels are merged into a unified heat dissipation air path that serves multiple components (battery holder, control board, power management board) sequentially. This merging approach allows multiple components to share a common heat dissipation pathway, improving heat dissipation effectiveness while avoiding the need for separate cooling systems for each component.
Solution Approach 2:
The heat dissipation air path serves multiple functions: it cools the battery holder, control board, and power management board sequentially as air flows through the housing. This multi-functional design allows a single air path structure to handle heat dissipation for multiple components, improving overall heat management efficiency without proportionally increasing structural complexity.
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
This design effectively dissipates heat from the battery holder, power management board, and control board, improving the overall heat management and performance of the pressure washer.
Implementation Method 1
a heat dissipation air path is formed between the air inlet and the air outlet, the heat dissipation air path is located inside the housing, and from the air inlet to the air outlet, the battery holder and the control board are located on the heat dissipation air path in sequence
Data Source
AI summary
A pressure washer includes a housing formed with a battery holder and a drive compartment; a battery pack accommodated in the battery holder; a control board disposed in the housing; a drive assembly disposed in the drive compartment and including a pump and an electric motor for driving the pump; and a water gun connected to the pump through a water pipe. The housing is provided with an air inlet and an air outlet, a heat dissipation air path is formed between the air inlet and the air outlet, the heat dissipation air path is located inside the housing, and from the air inlet to the air outlet, the battery holder and the control board are located on the heat dissipation air path in sequence.