Modular Electric Power Head for Engine Replacement Integration
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Solution Overview
Problem
Existing outdoor power machines are typically powered by internal combustion engines, necessitating a complete redesign when transitioning to electric power, which is inefficient and environmentally undesirable.
Innovation Solution
A self-contained electric power head with a horizontal output shaft, incorporating a battery compartment, electric motor, and electronic controls, designed for easy integration with mechanical loads, allowing for direct replacement of internal combustion engines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If outdoor power machines are re-powered using electric power packs, then efficiency and environmental performance are improved, but device complexity increases due to requiring a new complete machine design
Solution Approach 1:
The invention divides the outdoor power machine into two independent segments: the existing mechanical load components and the new electric power head assembly. The power head is a self-contained module with motor, battery compartment, and controls that can be independently designed and installed without redesigning the entire machine.
Solution Approach 2:
The power head is designed as a universal platform that can be applied to multiple different outdoor power machine types (lawn mowers, pressure washers, tillers, etc.). The mounting flange with multiple holes and standardized output shaft configuration allows the same power head design to interface with various mechanical loads, reducing overall system complexity.
2Adaptability or versatility
If a complete machine redesign is performed to incorporate electric components, then electric power integration is achieved, but manufacturing cost and time increase
Solution Approach 1:
The power head is manufactured as a separate, pre-assembled module containing the motor, battery compartment, electronic controls, and mounting flange. This segmentation allows for specialized manufacturing of the electric components independently from the mechanical load components, improving manufacturing efficiency and reducing overall production time.
Solution Approach 2:
The power head is pre-configured with all necessary electric components (motor, battery compartment, electronic controls, wiring) assembled and tested before installation on the outdoor power machine. This preliminary assembly eliminates the need for complex on-site integration and reduces manufacturing complexity.
3Object-affected harmful factors
If electric power packs are integrated into existing machines, then environmental performance improves, but installation complexity increases
Solution Approach 1:
The invention merges the motor, battery compartment, electronic controls, and mounting flange into a single integrated power head assembly. This consolidation simplifies installation by reducing the number of separate components that need to be installed and connected, while still providing complete electric power functionality.
Solution Approach 2:
The mounting flange is designed with multiple mounting holes and a standardized configuration that can interface with various existing machine types. This universal mounting design simplifies installation across different applications without requiring custom adaptation for each machine type.
4Adaptability or versatility
If a horizontal output shaft configuration is used, then compatibility with existing mechanical loads is improved, but design constraints increase
Solution Approach 1:
The power head adopts an asymmetric design where the output shaft is positioned horizontally rather than vertically, and the battery compartment is positioned to one side of the motor. This asymmetric configuration optimizes space utilization and interfaces more naturally with common mechanical load orientations, improving compatibility without significantly increasing overall 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
Enables efficient and environmentally friendly operation of outdoor power machines using electricity, reducing the need for a complete machine redesign and facilitating easy conversion to electric power.
Implementation Method 1
an electric motor disposed in the body and having an output shaft configured to be coupled to a mechanical load
Data Source
AI summary
An electric power head includes: a body including a mounting flange defining a mounting plane; a battery compartment disposed in the body and configured to receive one or more electric power packs; an electric motor disposed in the body and having an output shaft configured to be coupled to a mechanical load; and electronic controls configured to receive electric power from the one or more electric power packs and supply it to the electric motor.