Integrated Electric Power Head With Dual-Fan Heat Dissipation
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Solution Overview
Problem
Conventional power heads in outdoor power equipment are complex in structure, inconvenient to assemble, and have poor heat dissipation, while engines used in these devices are noisy, polluting, and pose safety hazards.
Innovation Solution
A power head integrating a motor assembly and battery pack assembly, featuring a simple structure for easy assembly and effective heat dissipation, using a housing assembly with air inlets and outlets for airflow to dissipate heat and a double fan system for enhanced cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an engine is used in outdoor power equipment, then power output is achieved, but noise, pollution, and safety hazards increase
Solution Approach 1:
The patent replaces the traditional internal combustion engine (mechanical system) with an electric motor system consisting of a motor assembly and battery pack assembly. This substitution eliminates the need for fuel combustion, thereby removing noise, exhaust pollution, and gasoline storage safety hazards while maintaining power output capability through electromagnetic conversion in the motor assembly.
2Ease of operation
If a conventional power head structure is used, then power transmission is achieved, but structural complexity and assembly difficulty increase
Solution Approach 1:
The power head is divided into distinct modular assemblies: a housing assembly containing a transmission mechanism, and a separate motor assembly with the electric motor. This segmentation allows each module to be independently manufactured, tested, and assembled, significantly improving assembly convenience while reducing overall structural complexity compared to integrated conventional designs.
Solution Approach 2:
The motor assembly serves multiple functions: it generates rotational power, transmits it through the housing assembly's transmission mechanism, and integrates the battery pack assembly for power supply. This multi-functionality consolidates what would traditionally require separate components, simplifying the overall structure while maintaining ease of assembly.
3Volume of moving object
If a compact power head design is used, then space efficiency is improved, but heat dissipation performance deteriorates
Solution Approach 1:
The housing assembly incorporates a transmission mechanism that allows the motor assembly to be positioned at an optimized location within the compact power head. The transmission mechanism transmits power through dimensional space efficiently, enabling the motor to be placed where it has access to cooling pathways without increasing the overall power head volume, thus maintaining compactness while improving heat dissipation.
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 integrated power head reduces energy consumption, enhances safety with insulation features, and provides efficient heat dissipation, making it energy-saving and environmentally friendly.
Implementation Method 1
The motor assembly includes a motor. One end of an output shaft of the motor extends to outside of the housing assembly.
Implementation Method 2
The battery pack assembly is arranged inside the housing space. The battery pack assembly supplies power for the motor assembly.
Data Source
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AI summary
The disclosure provides a power head and an outdoor power equipment using the same. The power head includes a housing assembly, a motor assembly and a battery pack assembly. The housing assembly includes a first housing and a second housing. The first housing and the second housing defines a housing space. The motor assembly is arranged in the housing space. The motor assembly includes a motor. One end of an output shaft of the motor extends to outside of the housing assembly. The battery pack assembly is arranged inside the housing space. The battery pack assembly supplies power for the motor assembly.