Battery Electric Powerhead With Engine-Mount Compatibility

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Solution Overview

Problem

Existing outdoor power equipment relies on small internal combustion engines, which are inefficient and environmentally harmful, lacking a compact and efficient electric power solution that can replace these engines effectively.

Innovation Solution

The development of an electric powerhead with a horizontal output shaft, powered by a lithium-ion battery system, designed to have a similar volume and mounting compatibility as small internal combustion engines, thereby enabling direct replacement in outdoor power equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If small internal combustion engines are used to power outdoor equipment, then sufficient power output is achieved, but environmental pollution and inefficiency increase

Engineering Contradiction:

ImproveemissionsVSAvoidpower output

Core Design Contradiction:

Object-affected harmful factorsVSPower

Solution Approach 1:

The patent replaces the internal combustion engine (mechanical/chemical system) with an electric motor (electrical system). The electric motor converts electrical energy directly to mechanical rotation without combustion, eliminating emissions while providing comparable power output for outdoor power equipment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental energy conversion parameter from chemical combustion to electrical conversion. By using a battery-powered electric motor system, the power delivery characteristics change from intermittent combustion cycles to continuous electrical drive, improving efficiency and eliminating harmful emissions.

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If electric motors are designed to replace internal combustion engines, then environmental friendliness improves, but compatibility with existing mounting standards becomes difficult

Engineering Contradiction:

ImproveemissionsVSAvoidmounting compatibility

Core Design Contradiction:

Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent designs the electric motor assembly with a standard horizontal shaft configuration that universally fits existing outdoor power equipment mounting patterns. The base plate incorporates standard engine support mounting hole patterns, allowing the electric motor to replace internal combustion engines across multiple equipment types without custom modifications.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent separates the electric motor into distinct functional modules: the motor assembly, the base plate with mounting features, and the horizontal output shaft. This segmentation allows each component to be optimized independently while maintaining overall compatibility with existing equipment through standardized interfaces.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If the electric powerhead is designed with standard mounting patterns, then adaptability to existing equipment improves, but device complexity increases

Engineering Contradiction:

Improvemounting compatibilityVSAvoidstructural complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the mounting base plate with the motor housing into a single integrated component. The base plate is formed as part of the motor assembly, combining the structural support function with the mounting interface, thereby reducing the number of separate parts while maintaining standard mounting compatibility.

Inventive Principle:

Principle #5Merging (Combining)

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 electric powerhead provides a compact, efficient, and environmentally friendly alternative to small internal combustion engines, offering comparable power output while reducing emissions and operational costs.

Implementation Method 1

a battery including a plurality of lithium-ion battery cells, the battery coupled to the electric motor

Methodology Applied

Scientific EffectBattery (electricity): Battery (electricity)

Implementation Method 2

an electric motor with a horizontal output shaft configured to rotate about a horizontal axis of rotation

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS20250167627A1Electric powerhead

Publication Date: 2025.05.22 BRIGGS & STRATTON CORP

AI summary

An electric powerhead includes an electric motor including an output shaft configured to rotate about an axis of rotation, a battery including a plurality of lithium-ion battery cells, the battery coupled to the electric motor, a housing having a cross-sectional footprint substantially the same as 174.5 in2, and a base plate configured to be fastened to a mounting surface, the base plate including a plurality of openings arranged in an engine support pattern.