Mobile Power Supply Interface Lockout for Tool and 3C Safety
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Solution Overview
Problem
Existing mobile power supplies are limited in their functionality, often unable to safely power both 3C electronic products and electric tools simultaneously, which can lead to operation accidents and unsafe use.
Innovation Solution
A multi-purpose mobile power supply with a first discharge interface for powering 3C electronic products and a second discharge interface for powering electric tools, where the second interface is designed to cover the first interface when connected to an electric tool, preventing simultaneous powering and ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile power supply is designed with multiple discharge interfaces for simultaneous powering of electric tools and 3C electronic products, then the versatility and productivity are improved, but the safety and reliability deteriorate due to potential operation accidents
Solution Approach 1:
The patent implements a dynamic interface management system where the availability of discharge interfaces changes based on the connected load type. When an electric tool is detected via the second discharge interface, the system dynamically disables the first discharge interface through control circuitry, preventing simultaneous powering operations and eliminating safety hazards while maintaining versatile powering capability
2Adaptability or versatility
If the mobile power supply provides multiple discharge interfaces for different device types, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent employs self-service mechanisms including automatic device type recognition through detection circuits that identify whether an electric tool or 3C product is connected. The control system automatically manages interface availability and power distribution without requiring user intervention, thereby maintaining high adaptability while minimizing the operational complexity for users
3Reliability
If the first discharge interface is covered when electric tool is connected, then the safety is improved by preventing simultaneous powering, but the ease of operation deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanical cover structure that physically blocks access to the first discharge interface when an electric tool is connected to the second interface. This cover acts as a mediator between the safety requirement and user operation, automatically engaging to prevent accidental simultaneous powering while allowing intentional interface management by users who need to switch between device types
Data Source
AI summary
A multi-purpose mobile power supply includes a first discharge interface configured for powering a computer, communication and consumer electronic product; a second discharge interface configured for powering an electric tool; and an assembly of the mobile power supply and the electric tool. The electric tool includes: an motor; a mounting portion configured for a freely assembling and disassembling connection with the multi-purpose mobile power supply; a power supply terminal provided on the mounting portion and electrically connected to the motor, where the power supply terminal is configured for being combined with the second discharge interface; a latch arranged on the mounting portion, where the multi-purpose mobile power supply is provided with a latch groove corresponding to the latch, and the latch is fitted in the latch groove in a latching connection.