Universal Power Interface for Hand-Held Tool Housing
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Solution Overview
Problem
Existing hand-held power tool housing devices are costly to produce and require multiple injection molds due to the need for separate designs for battery and mains power operation, lacking a flexible solution for interchangeable power sources.
Innovation Solution
The housing device incorporates a receiving interface that can accept either a battery unit or a mains power connection unit, featuring a latching mechanism and motor-control electronics for adaptable operation, along with modular components for mounting various electric motors and switches, allowing for interchangeable power sources and simplified production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate designs are used for battery and mains power operation, then each power source can be optimized for its specific function, but production costs increase due to requiring multiple injection molds
Solution Approach 1:
The receiving interface is designed with universal geometric features that can accommodate both battery units and mains power connection units. The interface includes a receptacle with geometric coding elements that can recognize and securely receive different power source types, allowing a single housing design to support multiple power sources without requiring separate injection molds for each configuration
2Ease of manufacture
If a single receiving interface design is used for both battery and mains power, then production costs are reduced, but the interface must accommodate different geometries and connection types
Solution Approach 1:
The receiving interface is segmented into functional zones: a receptacle portion for receiving the power source, geometric coding elements for identification, and a latching portion for securing. This segmentation allows each zone to be optimized independently while maintaining overall compatibility with both battery and mains power connection units
Solution Approach 2:
Geometric coding elements act as intermediaries between the receiving interface and different power source types. These coding features enable the interface to distinguish between battery units and mains power connection units, facilitating appropriate engagement and latching mechanisms without requiring completely separate interface designs
3Adaptability or versatility
If the housing device is designed to accept both battery units and mains power connection units, then versatility is improved, but the latching mechanism must handle different unit types
Solution Approach 1:
The latching mechanism is designed to automatically engage and secure both battery units and mains power connection units through self-latching features. The geometric coding elements and receptacle geometry work together to guide the power source into the correct position and trigger automatic latching, eliminating the need for manual adjustment or different latching procedures for different power source types
Data Source
AI summary
A housing device for a hand-held power tool includes at least one receiving interface configured to receive a battery unit. The at least one receiving interface is further configured to receive a mains power connection unit as an alternative to the battery unit.