Decorative Member Venting Layout for Redundant Pressure Balance
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Solution Overview
Problem
Conventional electronic devices face venting failures due to insufficient venting areas and blocked vent channels, leading to noise issues from audio devices caused by air pressure changes, as the existing waterproof breathable films cannot fully meet the venting requirements.
Innovation Solution
A decorative member with multiple balance valves and vent paths is designed, allowing simultaneous venting through various channels and ensuring continued functionality even if one valve or path is blocked, by dispersing balance holes and valves to prevent concentration and increasing the vent area through stepped grooves and additional vent gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single waterproof breathable film is used for venting, then the structure is simple, but the venting area is insufficient and venting failure may occur
Solution Approach 1:
The single waterproof breathable film is segmented into multiple films (first waterproof breathable film and second waterproof breathable film) arranged in parallel. Each film has its own vent channel, creating multiple independent venting paths. This segmentation increases the total venting area and ensures that if one path is blocked, others remain functional, thereby improving venting reliability without requiring a completely new structural approach.
Solution Approach 2:
Different regions of the decorative member are assigned different functions: the first waterproof breathable film and its vent channel handle primary venting, while the second waterproof breathable film and its vent channel provide redundant venting capability. This local differentiation of function ensures that each region contributes specifically to reliability, with the second path serving as backup to the first.
2Reliability
If the vent channel is blocked, then the structure remains intact, but venting failure occurs
Solution Approach 1:
The patent implements a backup venting system where the second waterproof breathable film and its associated vent channel are pre-positioned as a redundant path. If the first vent channel becomes blocked during operation, the second vent channel immediately provides an alternative pathway for pressure equalization, cushioning against venting failure without requiring any active intervention or system reconfiguration.
Solution Approach 2:
The system changes the parameter of venting path redundancy by introducing a second independent vent channel with its own waterproof breathable film. This parameter change from single-path to multi-path venting ensures that the blocking of one channel does not prevent venting, as the second channel maintains the necessary pressure equalization function.
3Reliability
If the waterproof breathable film area is increased, then venting capability is improved, but the camera layout is constrained
Solution Approach 1:
Instead of increasing the venting area in a single plane which would conflict with camera module placement, the patent utilizes the vertical dimension by stacking multiple waterproof breathable films at different positions. The first and second films are arranged in layers, with each having its own vent channel, thereby increasing total venting area without expanding the horizontal footprint that would interfere with camera layout.
Solution Approach 2:
The total venting function is segmented across multiple films and channels rather than concentrated in a single large film. This segmentation allows the venting system to achieve sufficient total area while distributing the components in a way that accommodates the camera module's position, as each smaller film can be placed in available spaces around the camera layout.
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 solution effectively addresses venting failures by ensuring efficient air pressure balance and noise reduction in electronic devices, maintaining performance even when individual valves or paths are obstructed, and enhancing the aesthetic and structural integrity of the device.
Implementation Method 1
The waterproof breathable film can balance the air pressure inside and outside the electronic device and prevent the audio device from generating noise
Implementation Method 2
the first adhesive layer is bonded between the cover plate and the main board portion
Data Source
AI summary
This application provides a decorative member, a housing assembly, and an electronic device. In the decorative member, a plurality of balance holes and balance valves covering the balance holes are arranged on a support, including at least two first balance holes arranged at intervals on a main board portion of the support and first balance valves covering the first balance holes. In addition, a plurality of vent channels in communication with each other are formed in a region on the main board portion where a first adhesive layer is not arranged, and an end of each of the vent channels extends to an edge of the main board portion and is in communication with a first vent gap formed between a cover plate and a decorative ring.