Sound Generating Module with Segmented Units and Reinforcement Plate
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Solution Overview
Problem
The development trend of electronic products towards thinner and smaller designs poses a challenge for sound generating device modules, as it compromises acoustic performance and fails to meet sound quality requirements.
Innovation Solution
The sound generating device module incorporates a housing with a cavity, a frame supporting high-pitch and low-pitch sound generating units on opposite sides, a baffle plate for side sound output, and a reinforcement plate for structural stability, optimizing space usage and acoustic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the sound generating device module is made thinner and smaller, then the volume of electronic components is reduced, but the acoustic performance deteriorates
Solution Approach 1:
The sound generating device is segmented into distinct high-pitch and low-pitch sound generating units, each with dedicated magnetic circuits and diaphragms. This segmentation allows optimized space utilization for each frequency range while maintaining overall compactness, resolving the contradiction between reduced volume and preserved acoustic performance.
Solution Approach 2:
The patent employs a planar arrangement where high-pitch and low-pitch sound generating units are positioned on opposite sides of a frame within the same housing cavity. This dimensional optimization allows both units to coexist in a thin profile without compromising their acoustic performance, effectively addressing the volume-performace trade-off.
2Volume of moving object
If multiple sound generating units are integrated in a limited space, then the device becomes more compact, but the structural stability deteriorates
Solution Approach 1:
The high-pitch and low-pitch sound generating units share common structural elements including the housing cavity, frame, and reinforcement plate. This merging of structural support systems reduces overall volume while the reinforcement plate provides centralized stability for both units, resolving the contradiction between compactness and structural stability.
Solution Approach 2:
The reinforcement plate acts as an intermediary structural element positioned between the high-pitch and low-pitch sound generating units. It provides mechanical support and stability to both units while allowing them to be integrated in a limited space, effectively mediating between the requirements for compactness and structural integrity.
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 configuration reduces the internal volume of the loudspeaker while maintaining high sound quality, ensuring that the module meets the requirements for sound quality and is applicable to various electronic devices.
Implementation Method 1
a coil and a diaphragm, the magnet is disposed in the accommodation groove and is fixed on the reinforcement plate, the diaphragm is disposed on the housing at an opposite side of an opening of the accommodation groove, a magnetic gap is provided between the magnet and a wall of the accommodation groove, the coil is connected with the diaphragm, and the coil is located in the magnetic gap
Data Source
AI summary
The present application discloses a sound generating device module, comprising: a housing having a cavity therein; a frame fixedly provided in the cavity, a high-pitch sound generating unit and a low-pitch sound generating unit are respectively provided on two opposite sides of the frame; a baffle plate is provided on a side of the housing corresponding to the high-pitch sound generating unit, and the baffle plate and the housing together form a side sound output port corresponding to the high-pitch sound generating unit; the sound generating device module is configured to form a front sound output structure for the low-pitch sound generating unit; and a reinforcement plate is provided in the frame, and the reinforcement plate is interposed between the high-pitch sound generating unit and the low-pitch sound generating unit.