Earphone Telescoping Joint Locking for Thinner Housing Assembly
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Solution Overview
Problem
Existing earphones have larger dimensions at the junction between the headband assembly and the connecting assembly due to the use of screws, which necessitate deep insertion for connection strength, hindering miniaturization.
Innovation Solution
The earphone design incorporates a telescoping assembly with a locking member and limiting portions to secure the housing components without requiring screws, allowing for reduced thickness and miniaturization by eliminating the need for connecting holes on the second housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws are used to fix the headband assembly and the connecting assembly, then connection strength is improved, but the dimensions of related components at the junction increase
Solution Approach 1:
The patent removes the screw connection method and extracts the deep insertion requirement from the design. Instead of using screws that require deep holes, the invention uses a snap-fit connection where the first housing directly engages with the second housing through elastic deformation, eliminating the need for deep connecting holes and reducing component thickness.
Solution Approach 2:
Instead of using rigid screw fastening that requires deep penetration, the invention inverts the approach by using elastic deformation of the housing material itself to create the connection. The first housing is designed to elastically deform and snap into the second housing, reversing the traditional fastening paradigm from rigid insertion to flexible engagement.
2Stability of the object's composition
If screws are used for fixation, then structural integrity is improved, but device miniaturization is hindered
Solution Approach 1:
The patent merges the connection function and the structural housing into a single integrated component. The first housing serves both as the structural enclosure and as the connection element itself, eliminating the need for separate screws and deep connecting holes. This integration reduces the overall volume while maintaining structural integrity through the elastic snap-fit mechanism.
3Reliability
If deep insertion is used for screw connection, then connection reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The first housing is designed to be self-sufficient in creating the connection through its own elastic deformation. The housing material itself provides the locking mechanism through its elasticity, eliminating the need for separate fastening components and deep insertion holes. This self-service approach simplifies manufacturing while maintaining reliable connections.
Data Source
AI summary
The present disclosure provides an earphone, which relates to the technical field of electronic devices. The earphone includes a headband assembly, a connecting assembly, and a speaker assembly; the connecting assembly includes a fixing assembly and a telescoping assembly, the fixing assembly includes a housing assembly and a locking member, the housing assembly includes a first housing and a second housing, the telescoping assembly includes a telescoping member; the housing assembly is provided with a plugging hole, the headband assembly has a plugging portion, the plugging portion is plugged within the plugging hole along a telescoping direction, the locking member is disposed to lock the first housing and the plugging portion along the telescoping direction, the second housing is provided with a first limiting portion and a second limiting portion. In the earphone provided in the present disclosure, the locking member locks the first housing and the plugging portion along the telescoping direction, the first limiting portion and the second limiting portion limit a movement of the second housing along the telescoping direction, and the second housing does not need to be provided with a connection hole. The thickness of the second housing at a junction between the headband assembly and the connecting assembly can be reduced, thereby reducing the dimension of the second housing and facilitating the miniaturization of the earphone.