Decorative Member Venting Structure for Redundant Pressure Equalization
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Solution Overview
Problem
Existing electronic devices face issues with noise generation due to air pressure changes, which are not adequately addressed by conventional air holes and waterproof breathable films, leading to potential venting failures.
Innovation Solution
A decorative member with multiple balance valves and vent paths is designed to ensure efficient air pressure equalization, allowing simultaneous venting through alternative paths if one fails, thus preventing venting failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single air hole with waterproof breathable film is used to balance air pressure, then the structure is simple, but the venting reliability is insufficient and may cause venting failure
Solution Approach 1:
The single air hole is segmented into multiple air holes (first air hole and second air hole) with independent waterproof breathable films. This segmentation ensures that if one air hole or its film fails, other air holes can still perform venting functions, thereby improving venting reliability without requiring complex mechanical backup systems.
Solution Approach 2:
Different regions of the decorative member are assigned different functions: some regions contain air holes for venting, while other regions maintain decorative properties. The waterproof breathable films are selectively applied only in specific locations where venting is needed, allowing the structure to achieve both reliability and aesthetic quality locally.
2Reliability
If the waterproof breathable film area is increased to meet venting requirements, then the venting capacity is improved, but the camera layout is constrained
Solution Approach 1:
The total venting area is segmented into multiple distributed air holes rather than one large continuous film area. This allows the waterproof breathable films to be positioned in specific regions that do not interfere with camera module placement, while collectively providing sufficient total venting capacity for pressure balance.
Solution Approach 2:
Instead of increasing venting area in a single plane which would conflict with camera layout, the solution distributes multiple air holes across different locations and depths. The venting function is achieved through spatial distribution in multiple dimensions rather than expanding a single large area, thus accommodating camera placement flexibility.
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 solution enhances venting efficiency and reliability by dispersing venting load across multiple paths, ensuring effective air pressure regulation and reducing noise generation.
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
Gas flows between the outside of the electronic device, the first gap, the first channel, the breathable space, the waterproof breathable film, and the first space to implement a quick balance between internal air pressure of the first space and external air pressure of the electronic device
Data Source
Figure 1
Figure 2
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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. In this way, the electronic device may vent a gas simultaneously through the plurality of first balance holes on the support, and the gas in the electronic device may be vented through the first vent gap via any vent channel. Through venting by using the plurality of balance valves and a plurality of vent paths, venting efficiency of the electronic device can be improved, and venting may still be performed through another balance valve and another vent path when one of the balance valves fails or some of the vent paths are blocked, thereby avoiding venting failure.