Angled Battery Pack Receptacle for Ride-On Mower Replacement

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Solution Overview

Problem

Existing ride-on outdoor power equipment, such as lawn tractors, face challenges in efficiently inserting and removing battery packs due to the design orientation, which can complicate maintenance and operation.

Innovation Solution

The battery assembly in the ride-on outdoor power equipment is angled relative to the operating plane, facilitating easy insertion and removal of battery packs without tools, and is integrated with a receptacle that can receive multiple packs to power the drive motor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the battery assembly is positioned horizontally in a conventional receptacle, then the structural design is simple, but the insertion and removal of battery packs becomes difficult and time-consuming

Engineering Contradiction:
Improveease of battery pack insertion and removalVSAvoidreceptacle design complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The receptacle is tilted at an acute angle relative to the operating plane, transitioning from a conventional horizontal position to an angled configuration. This dimensional change in the receptacle's orientation facilitates easier insertion and removal of battery packs by aligning the power connector with the pack connector at a more accessible angle, while the receiver continues to guide the battery pack along its central axis

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the receptacle is tilted at an acute angle, then battery pack insertion and removal is easier, but the manufacturing and assembly complexity increases

Engineering Contradiction:
Improvebattery pack replacement efficiencyVSAvoidreceptacle manufacturing complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The receptacle is tilted at an acute angle relative to the operating plane, transitioning from a conventional horizontal position to an angled configuration. This dimensional change in the receptacle's orientation facilitates easier insertion and removal of battery packs by aligning the power connector with the pack connector at a more accessible angle, while the receiver continues to guide the battery pack along its central axis

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the power connector is positioned far from the bottom wall, then battery pack engagement is easier, but the electrical connection reliability may be compromised

Engineering Contradiction:
Improveconnector engagement easeVSAvoidelectrical connection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The power connector is positioned at a distance from the bottom wall along the battery pack's central axis, allowing the connector to engage the pack connector at an optimal position that facilitates easier connection while maintaining reliable electrical contact through proper alignment and spacing

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP4401545B1Ride-on outdoor power equipment with removable battery packs
Publication Date: 2026.02.18 BRIGGS & STRATTON CORP
  • EP4401545B1 patent drawingFigure 1
  • EP4401545B1 patent drawingFigure 2
  • EP4401545B1 patent drawingFigure 3

AI summary

A ride-on outdoor power equipment, comprising a chassis a pair of front wheels coupled with the chassis, a pair of rear wheels coupled with the chassis, a mower deck supported by the chassis, and a battery assembly configured to power a drive motor. The battery assembly may include a plurality of battery packs, and a receptacle defined in part by a bottom wall. The receptacle may include a plurality of bays, each bay having a receiver extending away from the bottom wall, the receiver configured to guide a battery pack within the bay, and a power connector spaced a distance from the bottom wall, the power connector configured to engage the pack connector to electrically couple the battery pack to the receptacle, where the receptacle is angled at an acute angle relative to an operating plane.