Hearing Device Cable Retention Structure for Mechanical Load Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The reduction in size of hearing devices due to advancements in technology has exposed conductors and electronic components to mechanical forces, leading to increased likelihood of mechanical failure during normal usage, particularly when the device is removed from the ear canal.
Innovation Solution
The implementation of a blunt feature integrated into the outer jacket of a multi-function cable and a plurality of fibers that transfer mechanical forces from more fragile components to more durable components of the hearing device, such as the faceplate and shell, thereby distributing these forces across larger surface areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hearing device size is reduced to incorporate more components, then device functionality is improved, but mechanical strength and reliability of internal components deteriorate due to increased exposure to mechanical forces
Solution Approach 1:
The patent divides the mechanical load path into separate segments: the multi-function cable, the blunt feature, the recess, and the housing component. This segmentation allows each component to be optimized for its specific function while distributing mechanical stresses across multiple elements rather than concentrating them on fragile internal components like conductors and electronic components.
Solution Approach 2:
The blunt feature serves as an intermediary element between the multi-function cable and the housing component. It mediates the mechanical forces by providing a durable interface that can withstand tensile and rotational loads, preventing these forces from being directly transmitted to fragile internal components. The recess in the housing component acts as another intermediary structure that anchors the blunt feature securely.
2Volume of moving object
If conductors and electronic components are integrated into the multi-function cable for space efficiency, then device compactness is improved, but susceptibility to mechanical damage increases due to direct exposure to tensile and rotational forces
Solution Approach 1:
The patent implements prior cushioning by designing the blunt feature and recess interface to absorb and dissipate mechanical forces before they can reach the conductors and electronic components. The blunt feature's geometric design and material properties provide a cushioning effect that protects integrated components from tensile and rotational forces during device removal or manipulation.
Solution Approach 2:
The multi-function cable outer jacket serves as a flexible protective shell that encapsulates and protects the integrated conductors and electronic components. This flexible shell allows the cable to bend and move while maintaining protection of internal components, and the blunt feature extends through this shell to provide mechanical anchoring without exposing fragile components to external forces.
3Ease of operation
If the multi-function cable is used for device retention during removal, then ease of operation is improved, but mechanical forces are concentrated on fragile components leading to potential failure
Solution Approach 1:
The patent extracts the mechanical load-bearing function from the conductors and electronic components and places it solely on the blunt feature and housing component interface. The multi-function cable is taken out as the primary retention mechanism, but its connection to internal components is separated through the blunt feature, which handles all mechanical forces while allowing the conductors and electronics to remain protected within the housing.
Data Source
AI summary
A hearing device configured to be worn in an ear of a wearer includes a first housing component defining a recess, a second housing component configured to attach to the first housing component to define an enclosure, and a conductor, and a multi-function cable. The multi-function cable includes a blunt feature and an outer jacket of a multi-function cable. The outer jacket extends through the first housing component. A passage is defined by the blunt feature and the outer jacket, and the conductor extends through the passage. The hearing device further includes a plurality of fibers secured to an inner surface of the passage and an inner surface of the enclosure. The fibers extend through the passage and are configured to transfer mechanical forces from the multi-function cable to the first housing component.