Handle Assembly Eyelet Sealing for Audio Device Buzz Reduction
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Solution Overview
Problem
Portable electronic devices, such as audio devices, face challenges in carrying and maintaining portability while maximizing internal space for components, leading to issues like acoustic buzz and reduced durability.
Innovation Solution
A handle assembly with an eyelet, sealing member, and endpiece that securely attaches to the device's housing, reducing acoustic buzz and providing shock absorption, while occupying minimal internal volume, using a flexible handle and inexpensive sealing members like O-rings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a handle assembly is attached to the housing, then portability and carrying capability are improved, but internal space for components is reduced
Solution Approach 1:
The eyelet is inserted into the housing such that the sealing member passes through the housing opening and retains the eyelet within the housing structure. This nested configuration allows the handle assembly to be securely attached while minimizing the space occupied within the housing, as the eyelet and sealing member utilize the existing housing opening rather than requiring additional internal volume.
Solution Approach 2:
The sealing member, described as an O-ring, is a flexible element that can be compressed and deformed to pass through the housing opening and then expand to seal against both the eyelet and housing. This flexibility allows the sealing member to provide a secure seal while occupying minimal space, as it can be compressed during assembly and then expands to fill the sealing interface without requiring significant internal volume.
2Object-affected harmful factors
If the handle assembly is securely attached to prevent acoustic buzz, then acoustic performance is improved, but device complexity increases
Solution Approach 1:
The sealing member acts as an intermediary element between the eyelet and the housing. It is inserted through the housing opening and contacts both the eyelet and the housing, creating a seal that prevents acoustic buzz. This intermediary component simplifies the overall assembly by providing a single element that simultaneously achieves secure attachment and acoustic sealing, rather than requiring multiple separate components.
Solution Approach 2:
The sealing member, when inserted through the housing opening, automatically seals against both the eyelet and the housing due to its elastic properties. The act of inserting the sealing member through the opening inherently creates the seal and secures the eyelet in place, eliminating the need for additional fastening steps or complex assembly procedures. The sealing member essentially secures itself during the insertion process.
3Reliability
If the eyelet is retained in the housing opening, then durability and connection strength are improved, but manufacturing complexity increases
Solution Approach 1:
The sealing member is first inserted through the housing opening before the eyelet is fully secured. This preliminary action of inserting the sealing member through the opening prepares the sealing interface and positions the sealing member to subsequently retain the eyelet. By performing this sealing action first, the assembly process is simplified as the sealing member is already in place to guide and secure the eyelet during the next assembly step.
Solution Approach 2:
The sealing member, once inserted through the housing opening, automatically secures the eyelet in place through its elastic sealing action. The sealing member's inherent elasticity allows it to expand and contact both the eyelet and housing, creating a self-retaining mechanism that holds the eyelet securely without requiring additional fasteners or complex retention structures. This self-service retention simplifies the manufacturing process by eliminating extra retention components.
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 handle assembly enhances durability, reduces acoustic buzz, and maximizes internal space for audio device components, offering a robust and cost-effective solution for portable electronic devices.
Implementation Method 1
the sealing member reduces the handle assembly from causing undesired acoustic buzz during playback
Implementation Method 2
providing shock absorption
Data Source
AI summary
A handle assembly for an electronic device, such as an audio device, is described herein. In some implementations, the handle assembly includes a flexible fabric, rope handle that attaches at the side and near the top of the device. The attachment assembly utilizes an eyelet that slides onto the rope handle prior to attaching an endpiece to the rope. The endpiece is inserted into a device housing opening that receives the handle attachment assembly. The eyelet is then inserted into that housing opening to secure the eyelet and endpiece into the opening. A sealing member, such as an O-ring, is utilized to secure the eyelet into the opening, and to provide other benefits, such as preventing or reducing acoustic buzz that would otherwise occur between the eyelet and the casing during audio playback.