Wireless Data Module Mounting in Hand-Held Power Tools

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Solution Overview

Problem

Hand-held working apparatuses face challenges in protecting operating data communication components from external damage and ensuring optimal communication while avoiding the need for radio device approval, which is required for permanent installations.

Innovation Solution

The operating data communication component is mounted on the inner side of the apparatus housing's outer wall, providing protection from external dirt and shocks, and allowing for easy accessibility and replacement, while eliminating the need for radio device approval by being installed as a separate device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the operating data communication component is mounted on the outside of the apparatus housing, then the component is easily accessible and can be easily replaced, but the component is exposed to external dirt and possible damage from shocks

Engineering Contradiction:

ImproveAccessibility and replaceability of operating data communication componentVSAvoidExposure to external dirt and shock damage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The operating data communication component is nested within the apparatus housing by mounting it on the inner side of the outer wall. This allows the component to be protected from external harmful factors while still maintaining accessibility for installation and replacement through the battery compartment opening.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If the operating data communication component is permanently installed inside the housing, then the component is protected from external damage, but radio device approval is required

Engineering Contradiction:

ImproveProtection from external damageVSAvoidRadio device approval requirement

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The operating data communication component is designed as a separate, detachable unit that can be mounted on the inner side of the housing without being permanently integrated into the main device structure. This segmentation allows the component to be protected while avoiding the need for radio device approval for the entire working apparatus.

Inventive Principle:

Principle #1Segmentation

3Reliability

If the operating data communication component is mounted on the inner side of the outer wall, then the component is well-protected and radio device approval is eliminated, but the mounting region requires precise positioning

Engineering Contradiction:

ImproveProtection and elimination of radio device approvalVSAvoidPositioning accuracy of mounting region

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The battery compartment serves multiple functions: it houses the energy storage device, provides accessibility to the operating data communication component for installation and replacement, and offers a mounting region for the component on the inner side of the outer wall. This multi-functionality reduces the need for separate precise positioning structures.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12059793B2Hand-held, motor-driven working apparatus

Publication Date: 2024.08.13 ANDREAS STIHL AG & CO KG

AI summary

A hand-held working apparatus has an apparatus housing, a working tool capable of being motor-driven, a drive motor for the working tool, and an operating data communication component connected to the apparatus housing and having a communication interface configured for wireless transmission of operating data. The operating data communication component has a mounting region by which it is mounted on an attachment region of the apparatus housing. The attachment region is located on an inside of an outer wall of the apparatus housing.