Mobile Terminal Exciter Fixing via Elastic Precompression
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Solution Overview
Problem
Existing mobile terminal designs face challenges in optimizing space utilization and drop reliability due to the increased lateral size caused by fixing exciters using adhesives, screws, or clasps, which compromise structural stacking and reliability.
Innovation Solution
A mobile terminal design featuring a housing with a side wall and supporting block, where an elastic member is fixed to the housing and provides precompression to resist an exciter sandwiched between the elastic member and screen module, allowing for improved fixing and drop reliability while saving space through efficient assembly and utilization of structural gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive is used to fix the exciter, then assembly is simplified, but drop reliability deteriorates
Solution Approach 1:
The patent combines the fixing function and the cushioning function into a single integrated structure. The elastic member serves both to secure the exciter in position and to provide shock absorption during drops, eliminating the need for separate adhesive layers while improving reliability through mechanical elasticity.
Solution Approach 2:
The elastic member is pre-configured in a compressed state between the housing and the exciter, providing beforehand cushioning that absorbs impact energy during drops. This pre-compression ensures that the cushioning effect is immediately available when impact occurs, significantly improving drop reliability.
2Reliability
If screws or clasps are used to fix the exciter, then drop reliability is improved, but lateral size increases
Solution Approach 1:
The patent transitions from lateral/planar fixing methods (screws, clasps) to a vertical/dimensional fixing approach. The elastic member is compressed in the thickness direction of the housing, utilizing the Z-axis dimension for fixing rather than consuming lateral space, thereby maintaining compact form factor while achieving reliable fixation.
Solution Approach 2:
The elastic member functions as a flexible component that can be compressed and deformed to provide both fixing and cushioning functions. This flexible element replaces rigid mechanical fasteners, enabling space-efficient integration within the housing structure while maintaining secure attachment of the exciter.
3Ease of manufacture
If exciter is directly fixed on the screen, then assembly is simplified, but fixing reliability deteriorates
Solution Approach 1:
The elastic member serves as an intermediary component between the housing and the exciter, providing both mechanical support and shock absorption. This intermediate element distributes forces evenly and secures the exciter more reliably than direct screen fixation, while still maintaining assembly simplicity through a single integrated component.
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 the fixing and drop reliability of the exciter, improves space utilization, and simplifies assembly by leveraging the elastic member's rebounding force, resulting in a more consistent and compact mobile terminal structure.
Implementation Method 1
an elastic member fixed in the receiving cavity and providing precompression to resist against the exciter
Implementation Method 2
The exciter vibrates to drive the screen vibrating to generate sounds
Data Source
AI summary
The present application discloses a mobile terminal. The mobile terminal includes a housing; a screen module; an elastic member received in the receiving cavity; and an exciter sandwiched between the elastic member and the screen module, the exciter driving the screen module to vibrate, the exciter including a bottom wall, a lateral wall extending bently towards the screen module from the bottom wall, and a top wall covered on the lateral wall; one end of the elastic member is fixed to the housing, the other end is spaced from the housing and abuts against the bottom wall of the exciter; the top wall is fixed to the screen module, and the elastic member is in a compression deformation state to resist against the bottom wall.