Electro-Mechanical Interface with Nested Locking for Appliance Safety
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Solution Overview
Problem
Existing electro-mechanical interfaces for appliances lack effective mechanisms to enhance safety by limiting disassembly and improve usability through efficient space utilization and intuitive control mechanisms.
Innovation Solution
An electro-mechanical interface device featuring a selection element with snap locking tabs, a fastening ring, and a hub element that restricts separation and rotation, integrated with a variable resistor and LED display for user-friendly operation and alignment within a constrained space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional electro-mechanical interface is used, then the structure is simple, but the appliance safety is compromised due to easy disassembly
Solution Approach 1:
The patent implements a nested structure where the selection element is received within the mounting element, and the fastening ring engages both components. The hub element is nested within the selection element, creating a multi-layered assembly that prevents disassembly while maintaining a compact form factor. This nesting approach directly addresses the safety concern by making the interface不可拆卸 (non-disassemblable) without excessive complexity.
Solution Approach 2:
The fastening ring is pre-configured with engagement features that automatically secure the selection element to the mounting element upon assembly. The snap locking tabs are pre-positioned to engage with corresponding features on the fastening ring, creating a self-securing mechanism that prevents unauthorized disassembly before use.
2Ease of operation
If more control mechanisms are added to enhance usability, then the user interface becomes more intuitive, but the internal space of the appliance is reduced
Solution Approach 1:
The patent combines multiple control functions into a single integrated apparatus. The mounting element, selection element, fastening ring, and hub element work together as one unified component that provides both mechanical control and electrical connectivity. This merging eliminates the need for separate control mechanisms, preserving internal space while maintaining intuitive operation through the selection element's rotational and pressing capabilities.
Solution Approach 2:
The selection element serves multiple functions: it provides mechanical rotation for mode selection, pressing action for activation, and houses the variable resistor for electrical control. The fastening ring simultaneously secures the assembly and provides structural support. This multi-functionality reduces the number of separate components needed, maximizing internal space utilization.
3Adaptability or versatility
If the selection element is made rotatable for mode selection, then the control mechanism becomes more versatile, but the structural stability is reduced
Solution Approach 1:
The patent implements a dynamic structure where the selection element can rotate for mode selection but is constrained by the fastening ring and hub element to maintain stable engagement. The snap locking tabs provide discrete stable positions during rotation, allowing the interface to transition between static (stable) and dynamic (rotatable) states as needed for versatile control.
Solution Approach 2:
Different portions of the interface have different degrees of freedom: the selection element allows rotation at its mounting interface with the fastening ring, but the overall assembly maintains structural stability through the engaged fastening ring and hub element. This localized flexibility vs. stability approach enables versatile control without compromising overall structural integrity.
Data Source
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AI summary
An electro-mechanical interface device for an appliance. The device including: a mounting element having a first side and a second side, the mounting element having a mounting aperture from the first side through to the second side; a first selection element in the form of a hollow sleeve that is partially located through the mounting aperture from the first side of mounting element; and a fastening ring engages the first selection element from the second side of mounting element, such that the first selection element is releasably retained from being withdrawn from the mounting aperture, wherein the first selection element is rotatable with respect to the mounting element. The device may further include a hub element is located within the circular-sleeve of the first selection element that restricts separation of the first selection element from the fastening ring.