Wearable Device Epoxy Sealing for Waterproofing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wearable electronic devices face challenges in balancing portability and performance due to the inclusion of multiple components, which can limit their functionality and durability, especially in harsh environments and conditions such as water exposure.
Innovation Solution
The design incorporates a housing with a tailored arrangement of components, including a display assembly and epoxy seals, to create a waterproof and compact structure that maintains performance without increasing undesirable properties, using a sidewall with upper, lower, and middle portions bonded together and an epoxy layer that contacts the sidewall to prevent moisture ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple components are included in wearable devices to enhance functionality, then device performance is improved, but device size and complexity increase, limiting portability
Solution Approach 1:
The patent implements nesting by placing the display assembly within the housing cavity, and further nesting the epoxy seal within the gap between the display assembly and housing. This nested arrangement allows multiple functional components to occupy overlapping spatial volumes, enhancing device functionality while maintaining compact dimensions suitable for wearable applications.
Solution Approach 2:
The patent utilizes the gap dimension between the display assembly and housing sidewall to position the epoxy seal. By exploiting this third dimension (depth/gap) rather than only horizontal or vertical spacing, the design accommodates the seal without increasing the overall device footprint, thus maintaining portability while adding protective functionality.
2Volume of moving object
If components are tightly arranged to reduce device size, then portability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by positioning the epoxy seal specifically in the gap region between the display assembly and housing sidewall. This localized placement addresses sealing requirements only where needed (at the interface between components), rather than requiring precision sealing across entire component surfaces. The epoxy material properties are tailored for this specific local application, filling irregular gaps and accommodating manufacturing tolerances.
3Device complexity
If gaps are formed between housing and display assembly, then component arrangement flexibility is improved, but device reliability decreases due to potential moisture ingress
Solution Approach 1:
The epoxy seal serves as an intermediary element positioned between the display assembly and housing sidewall. It fills the gap that necessarily exists due to component arrangement requirements, transforming this potentially harmful space into a controlled sealing region. The epoxy material acts as a mediator that maintains the functional gap for component positioning while simultaneously providing the waterproof barrier needed for reliability.
Solution Approach 2:
The patent employs epoxy material as a composite sealing solution that combines adhesive, sealing, and protective functions. This composite material approach allows the gap to serve dual purposes: maintaining component arrangement flexibility while providing waterproof protection. The epoxy's composite nature (combining multiple functional properties in one material) resolves the contradiction between needing gaps for flexibility and preventing moisture ingress for reliability.
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
This configuration enhances the functionality and durability of wearable devices by allowing them to operate in various conditions while maintaining performance and preventing water damage, ensuring effective fluid communication and electrical connectivity.
Implementation Method 1
a housing sidewall including an upper sidewall portion and a lower sidewall portion bonded to a middle sidewall portion disposed between the upper and lower sidewall portions
Implementation Method 2
an epoxy component at least partially defines the cavity and can be in direct contact with the housing sidewall
Data Source
AI summary
An electronic device includes a housing sidewall defining an opening and a display component, such as a display cover, disposed in the opening to form a gap between the housing sidewall and the display component. In at least one example, the cavity is defined by the sidewall and the display cover with the cavity in fluid communication with an external environment through the gap. In at least one example, an epoxy component at least partially defines the cavity and can be in direct contact with the housing sidewall.