Alternating Stacked Sound Transducer Unit for High Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sound transducer units, such as flat panel speakers, lack improved operating performance in terms of power and sound quality, particularly in generating sound waves effectively.
Innovation Solution
A sound transducer unit design featuring multiple magnet units with permanent magnetic fields and corresponding acoustic units with deflectable diaphragms and coil arrangements, where the diaphragms are deflected by Lorentz forces generated by interacting magnetic fields, allowing for enhanced sound wave generation and pressure through a stacked and alternating arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple magnet units and acoustic units are arranged alternatingly one above the other, then sound pressure and power are increased, but device complexity increases
Solution Approach 1:
The sound transducer unit is divided into multiple independent acoustic units, each comprising a diaphragm and coil arrangement, alternately stacked with magnet units. This segmentation allows each unit to contribute independently to sound pressure while maintaining modular simplicity in design and assembly.
Solution Approach 2:
The patent transitions from a single-plane speaker design to a three-dimensional stacked arrangement where magnet units and acoustic units are alternately positioned along the vertical axis. This dimensional change enables increased sound pressure through cumulative effect of multiple units without requiring lateral expansion.
2Reliability
If diaphragms are deflected uniformly in the same direction, then sound quality is improved, but controlling all diaphragms to deflect identically increases device complexity
Solution Approach 1:
Each acoustic unit is designed with identical structural characteristics, ensuring that local conditions for diaphragm deflection are uniform across all units. This local quality consistency enables synchronized sound wave generation without requiring complex control mechanisms, as each unit naturally responds identically to the applied electrical signal.
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 design significantly improves sound pressure and power by ensuring diaphragms deflect uniformly, generating sound waves in a consistent direction, and enhances sound quality by synchronizing the deflection of diaphragms, resulting in improved sound wave emission and reduced interference.
Implementation Method 1
the Lorentz force is formed such that the diaphragm can be deflected, thereby allowing for sound waves to be generated
Implementation Method 2
the dynamic magnetic field interacts with the permanent magnetic field and, as a result, the diaphragm is deflected
Implementation Method 3
each having a permanent magnetic field... The permanent magnetic fields of the at least two magnet units together form an overall magnetic field
Implementation Method 4
at least one diaphragm that is deflectable along a stroke axis for generating sound waves
Data Source
AI summary
In one aspect, a sound transducer unit includes at least two magnet units having a permanent magnetic field and further includes at least two acoustic units. Each acoustic unit has a diaphragm that is deflectable along a stroke axis for generating sound waves. The sound transducer unit also includes a coil arrangement provided in association with each acoustic unit, wherein the coil arrangement is configured to be supplied electric current such that the diaphragm is deflectable along the stroke axis. The at least two magnet units and the at least two acoustic units are arranged alternatively one above the other.