Robotic Mower Battery Pack Coupling for Safe Detachable Handling

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Solution Overview

Problem

Robotic lawn mowers face issues with noise, dust, and physical fatigue during operation, and handling of battery pack assemblies is cumbersome, posing safety risks.

Innovation Solution

A battery pack assembly for robotic mowers with a blade carrier lifting assembly, height-adjustment mechanism, and suspension-lifting detection system to enhance handling and reduce operator fatigue, incorporating features like blade height adjustment, dust-proofing, and collision detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the battery pack assembly is made detachable for easy handling, then the ease of operation is improved, but the reliability of electrical connection may deteriorate

Engineering Contradiction:
Improvehandling of battery pack assemblyVSAvoidelectrical connection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The battery pack assembly is designed as a detachable module that can be separated from the robotic mower body. This segmentation allows the battery pack to be easily removed and reattached, improving handling ease while maintaining connection reliability through dedicated coupling structures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A coupling structure acts as an intermediary between the battery pack assembly and the robotic mower body. This coupling structure includes electrical connection components that ensure stable electrical contact while allowing the battery pack to be detached when needed, thus mediating between ease of operation and connection reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the robotic mower is equipped with multiple functional components for enhanced performance, then the productivity is improved, but the device complexity increases

Engineering Contradiction:
Improvemowing efficiencyVSAvoidstructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple functional components including the blade carrier lifting assembly, height-adjustment mechanism, and suspension-lifting detection system are integrated into a unified robotic mower platform. This merging approach allows enhanced productivity while managing overall system complexity through shared structural elements and control systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The robotic mower is designed with multi-functional components that serve multiple purposes. For example, the height-adjustment mechanism not only controls blade height but also contributes to the overall structural framework, thereby improving productivity without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the blade carrier lifting assembly is made adjustable for better ergonomics, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improveergonomic handlingVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The blade carrier lifting assembly incorporates a height-adjustment mechanism that allows dynamic adjustment of the blade carrier position. This dynamic capability enables ergonomic adaptation to different user needs and operating conditions, improving ease of operation while the adjustment mechanism is designed to minimize added complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4149237B1A battery pack assembly for a robotic mower
Publication Date: 2026.02.11 GLOBE (JIANGSU) CO LTD
  • EP4149237B1 patent drawingFigure 1~3
  • EP4149237B1 patent drawingFigure 4~6
  • EP4149237B1 patent drawingFigure 7~9

AI summary

A mower is provided and includes: a housing; a movable upper cover, disposed on the housing; and a cutting assembly, disposed on the housing. The cutting assembly includes a blade carrier assembly, and the blade carrier assembly includes a blade carrier and a blade. The blade carrier includes a disc body and a blade receiving groove recessed inwardly from an edge of the disc body along an axial direction of the disc body. The blade is mounted in the blade receiving groove and arranged to be that the blade is not protruded out of the blade receiving groove in the axial direction of the disc body.