Mobile Terminal Receiver Bracket Design for Thickness Reduction
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Solution Overview
Problem
Conventional mobile terminal devices face challenges in reducing thickness due to dead space occupied by the grill structure and insecure coupling of the receiver with the PCB, leading to potential performance failures and quality deterioration.
Innovation Solution
A mobile terminal device design that incorporates a bracket with a container-shaped area housing the PCB and a receiver mesh, where the receiver is securely mounted with a magnet and coil, and electrically connected through contact lines penetrating the bracket, eliminating the need for a Flexible PCB and utilizing dead space for thickness reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a grill structure is used to house the receiver separately, then the receiver is protected and mounted, but dead space is created that increases the overall thickness of the mobile terminal device
Solution Approach 1:
The patent merges the receiver housing function into the bracket structure itself. The bracket includes a container-shaped area that houses both the receiver and PCB, eliminating the need for a separate grill structure. This integration removes the dead space created by the traditional grill while maintaining receiver protection and mounting security.
2Ease of manufacture
If double-sided tape is used to fix the grill to the bracket, then the grill is mounted, but the coupling is not secure enough to withstand external impacts
Solution Approach 1:
The patent extracts the grill component entirely from the design, eliminating the need for double-sided tape attachment. The receiver is directly housed within the bracket's container-shaped area, providing secure coupling that can withstand external impacts without requiring adhesive materials.
3Ease of operation
If FPCB is used to connect the receiver to the PCB, then electrical connection is achieved, but the exposed FPCB and grill structure cannot ensure secure coupling under impact
Solution Approach 1:
The patent merges the electrical connection structure into the bracket itself. The bracket includes a contact portion that provides both mechanical support and electrical connection between the receiver and PCB. This integrated approach ensures secure coupling under impact while maintaining electrical connectivity, eliminating the vulnerability of exposed FPCB.
4Reliability
If a separate grill structure is used to house the receiver, then the receiver is protected, but the mounting portion becomes dead space that prevents thickness reduction
Solution Approach 1:
The patent merges the receiver housing function into the bracket structure. The bracket's container-shaped area serves as both the mounting structure and protective housing for the receiver. This eliminates the need for a separate grill structure, reducing dead space and overall device thickness while maintaining receiver protection.
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 design securely couples the receiver to the PCB, reduces the overall thickness of the mobile terminal device, and enhances structural integrity by utilizing previously unused space, thereby improving performance and quality.
Implementation Method 1
When a current flows to the voice coil under a line of magnet force formed by the magnet, a Lorentz force occurs. As the voice coil vibrates the diaphragm by this force, while air contacting with the diaphragm vibrates, a sound wave occurs.
Data Source
AI summary
A receiver, a mobile terminal device having the same includes a main circuit disposed upward by a predetermined gap from a bottom surface of a bracket housed within the mobile terminal device. The receiver includes a diaphragm provided at the other side of the bracket separated by a predetermined gap from the main circuit and a container shape in which a circuit is wired within the bracket and that houses a receiver mesh in an area in which a portion of a lower surface of the container shape is opened and that mounts a magnet on an injection structure molded at a periphery of the receiver mesh and the diaphragm covers an upper portion of the receiver mesh and the magnet and a coil fixed to the diaphragm and facing the magnet.