Receiver Front Sound Cavity Sealing in a Terminal Middle Frame
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Solution Overview
Problem
Existing terminal devices face high manufacturing and mounting costs due to the complex structure of the front sound cavity of the receiver, which requires additional supports and grooves for sound emission, occupying valuable mounting space and increasing production costs.
Innovation Solution
A terminal device design featuring a middle frame with a first groove and through hole forming a front sound cavity, sealed by a sealing assembly, which includes a cover plate and sealing members, allowing sound emission only through designated outlet holes, reducing the need for additional supports and minimizing space occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver is sealedly connected to the support and the support is sealedly connected to the middle frame by sealing members, then the front sound cavity is sealed, but the manufacturing and mounting costs of the support increase
Solution Approach 1:
The patent merges the sealing function with the middle frame structure itself. The first groove is directly formed on the middle frame, and the sealing assembly is integrated into this groove, eliminating the need for a separate support component. This integration reduces the number of parts and assembly steps while maintaining the sealing function.
Solution Approach 2:
The patent extracts the sealing function from the support component and relocates it to the middle frame. By forming the first groove on the middle frame and using the sealing assembly within this groove, the support is eliminated, thereby reducing manufacturing and mounting costs associated with the support.
2Shape
If the groove and through hole for forming the front sound cavity are arranged on the support, then the sound cavity is formed, but the space occupied by the support increases
Solution Approach 1:
The patent combines the sound cavity formation features (first groove and first through hole) directly into the middle frame structure. This eliminates the need for a separate support component, thereby reducing the total space occupied by mounting structures while maintaining the front sound cavity functionality.
3Reliability
If multiple sealing members are used to seal the receiver and support connections, then the sealing is ensured, but the device complexity increases
Solution Approach 1:
The patent merges multiple sealing functions into a single integrated sealing assembly. The sealing assembly includes a cover plate and sealing members that work together as one unit, reducing the number of separate components and simplifying the overall structure while maintaining sealing effectiveness.
Solution Approach 2:
The sealing assembly serves multiple functions simultaneously: it seals the first groove, supports the receiver assembly, and provides a mounting structure for the cover plate. This multi-functionality reduces the need for separate components and simplifies the overall device structure.
Data Source
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AI summary
This application provides a terminal device. The terminal device includes a middle frame, a receiver assembly, and a sealing assembly. The middle frame includes a first surface and a second surface that are arranged opposite to each other. Sound outlet holes are arranged on the middle frame. A first groove is arranged on the first surface of the middle frame. The first groove is in communication with the sound outlet holes. A first through hole is arranged on a bottom wall of the first groove. The receiver assembly is arranged on the second surface of the middle frame. The receiver assembly is sealedly connected to the middle frame, and corresponds to the first through hole. The sealing assembly is configured to seal the first groove. The first groove of the middle frame and the first through hole form a front sound cavity of the receiver assembly. The middle frame is sealedly connected to the receiver assembly, and the sealing assembly seals the first groove, so that the front sound cavity of the receiver assembly is sealed, and the sound outlet holes on the middle frame are only sound emitting channels of the receiver assembly. In this way, the cost of the sealing assembly for sealing the structure of the front sound cavity is low, and the cost of manufacturing the first groove and the first through hole on the middle frame is low.