Neckband Wire Unit Deformation and Button Accessibility
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Solution Overview
Problem
Conventional portable sound equipment, particularly neckband types, face challenges with portability, durability, and water resistance due to size constraints and exposure to sweat, as well as difficulties in distinguishing buttons without visual inspection.
Innovation Solution
A portable sound equipment design featuring a deformable neckband wire unit with a shape-memory alloy frame wire, a sheath tube, and a securing mechanism to stabilize the coupling between components, along with a waterproof structure and tactilely distinguishable buttons to enhance usability and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the neckband wire unit is made sufficiently large to be rested around the user's neck, then it occupies more space when held in hand or stored in a bag, but it provides sufficient comfort and stability when worn
Solution Approach 1:
The neckband wire unit is designed to be deformable, allowing it to transition between an expanded state for wearing and a compressed/rolled state for storage. The frame wire maintains structural integrity while enabling the unit to be rolled into a compact form factor without permanent deformation
Solution Approach 2:
The invention changes the physical state and configuration parameters of the neckband wire unit. When not in use, the unit can be rolled or folded into a compact configuration, effectively changing its volume parameter from large (when worn) to small (when stored), while the frame wire ensures it returns to its original shape
2Volume of moving object
If the neckband wire unit is deformed during rolling, then it becomes compact for storage, but stress is generated that weakens the coupling between the neckband wire unit and main body
Solution Approach 1:
A waterproof adhesive tape is applied beforehand to reinforce the coupling between the neckband wire unit and the main body. This protective measure is in place before any deformation occurs, cushioning against the stress that will be generated during rolling and unrolling operations, thereby preventing coupling failure
Solution Approach 2:
The coupling structure uses a composite approach by combining the neckband wire unit with a waterproof adhesive tape reinforcement. This composite structure distributes and withstands the stress generated during deformation, maintaining reliable coupling even when the unit is repeatedly rolled and unrolled
3Ease of operation
If physical buttons are provided with gaps for accessibility, then they are easy to operate, but liquid can permeate into the electronic control unit
Solution Approach 1:
A waterproof adhesive tape is applied over the button assembly, creating a flexible waterproof barrier. This thin film covers the gaps around the buttons while allowing the buttons to remain accessible and functional, preventing liquid from permeating into the electronic control unit through the button gaps
4Volume of moving object
If multiple buttons are placed adjacent to each other to reduce size, then space is saved, but users cannot easily distinguish and operate them without visual inspection
Solution Approach 1:
The buttons are designed with asymmetric tactile features including different heights, protrusion depths, and surface textures. This asymmetry allows users to distinguish between adjacent buttons through tactile sensation alone, even when the buttons are placed close together, eliminating the need for visual inspection during operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design allows for easy rolling and storage of the equipment, maintains button functionality with reduced manufacturing costs, prevents water ingress, and enables users to locate buttons through tactile sensation, maximizing space usage and reliability.
Implementation Method 1
a frame wire which forms a shape of the gentle curve
Data Source
AI summary
A portable sound equipment having a neckband wire unit which forms a gentle curve; a main body which is provided in each end of the neckband wire unit; a frame wire which forms a shape of the gentle curve; a sheath tube which defines an exterior appearance of the neckband wire unit cover the frame wire by covering the frame wire and exposes an end area of the frame wire; a fixing tube which covers a predetermined exposed area of the frame wire and an end area of the sheath tube; and a clamp which is configured to tighten an outer circumferential surface of the overlapped area between the sheath tube and the fixing tube is provided.