Electric Riding Lawn Mower Lithium Battery Power System
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Solution Overview
Problem
Existing riding lawn mowers are often powered by gasoline or diesel, leading to environmental pollution and high maintenance costs due to frequent wear and tear in the fuel system, and handheld mowers are inadequate for large lawn areas in terms of mowing capacity and efficiency.
Innovation Solution
An electric riding lawn mower with a power supply system using lithium battery packs, providing a discharge power of 2000 W to 4000 W, powered by multiple detachable battery packs that can also power other tools, and a walking assembly with a second motor for efficient travel and mowing, reducing environmental impact and maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If gasoline or diesel engines are used to power riding lawn mowers, then sufficient power and mowing capacity are achieved, but environmental pollution increases and maintenance costs rise due to frequent wear in the fuel system
Solution Approach 1:
The patent replaces the mechanical fuel combustion system with an electric power system. The riding lawn mower uses an electric motor driven by a battery pack instead of a gasoline or diesel engine, eliminating exhaust emissions and reducing environmental pollution while maintaining sufficient mowing power through high-torque electric motor performance.
2Power
If gasoline or diesel engines are used to power riding lawn mowers, then sufficient power is achieved, but maintenance costs increase due to frequent wear and tear in the fuel system
Solution Approach 1:
The patent replaces the complex mechanical fuel system with a simpler electric power system. The battery-electric motor configuration eliminates fuel injection systems, spark plugs, exhaust valves, and other components requiring frequent maintenance, thereby reducing maintenance costs and improving ease of repair while delivering adequate mowing power.
3Ease of operation
If handheld lawn mowers are used, then portability and convenience are improved, but mowing capacity and efficiency are insufficient for large lawn areas
Solution Approach 1:
The patent segments the power supply system into detachable battery packs that can be easily removed and recharged. This allows the riding lawn mower to maintain portability and ease of operation while providing sufficient mowing capacity for large areas. The battery packs can be quickly swapped during operation to extend working time and maintain high productivity.
4Power
If multiple detachable battery packs are used to provide high discharge power, then sufficient power for large area mowing is achieved, but device complexity increases
Solution Approach 1:
The patent designs the battery packs with universal compatibility across different power tools. The same battery pack configuration that provides high discharge power for the riding lawn mower can also power other garden equipment, reducing overall system complexity through standardized power interfaces and modular design that simplifies the power supply structure.
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 riding lawn mower offers high adaptability and low usage costs by using lithium batteries for power, reducing pollution and maintenance needs, and enabling efficient mowing of larger areas without the need for frequent part replacements.
Implementation Method 1
a power supply device including one or more first battery packs to power the electric riding lawn mower; wherein each of the one or more first battery packs including: a first battery pack housing; and battery cells disposed in the first battery pack housing; wherein the power supply device is mounted to the main frame
Data Source
AI summary
An electric riding lawn mower includes a seat for a user to ride, a main frame to support the seat, a power output assembly including a mowing element to output power to realize mowing function and a first motor to drive the mowing element, a walking assembly to at least drive the electric riding lawn mower to travel in the direction of a first straight line on the ground and a second motor to drive the walking assembly, and a power supply device to power the electric riding lawn mower with a first battery pack, which includes a first battery pack housing and a plurality of battery cells disposed therein. The power supply device is mounted to the main frame. At least one of the first battery packs of the power supply device forms a pluggable connection with the main frame. The battery cells are lithium batteries.