Full-range speaker phase plate for 6 kHz-18 kHz response
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional full-range speakers experience significant attenuation in their frequency response curve at 6 kHz-18 kHz and have lower sensitivity, resulting in an uneven overall frequency response.
Innovation Solution
A full-range speaker design incorporating a phase plate with a curved cross-section support rib, which is fixed to a bracket using screws, helps adjust the phase to prevent standing waves and enhance frequency response characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional full-range speaker design without phase plate is used, then product height control and voice coil design are achieved, but frequency response curve shows obvious attenuation at 6 kHz-18 kHz with lower sensitivity
Solution Approach 1:
The patent extracts and addresses the specific frequency range problem (6 kHz-18 kHz attenuation) by introducing a phase plate as a separate component. The phase plate is designed with specific geometric features (curved cross-section support ribs) that target the problematic frequency range, allowing the main speaker structure to remain unchanged while correcting the frequency response in the affected band.
Solution Approach 2:
The phase plate changes the acoustic parameters within the speaker enclosure by introducing reflective surfaces at specific angles and positions. The curved cross-section of the support ribs creates controlled reflections that modify the phase and amplitude of sound waves in the 6 kHz-18 kHz range, thereby improving frequency response characteristics without changing the fundamental speaker design.
2Reliability
If traditional full-range speaker design is used, then magnetic fluid injection for voice coil centering is achieved, but overall frequency response curve is uneven
Solution Approach 1:
The phase plate acts as an intermediary element between the sound source and the external environment. It mediates the acoustic field by introducing controlled reflections and phase shifts, thereby equalizing the frequency response across different frequency ranges. The phase plate does not interfere with the voice coil centering mechanism but independently addresses the frequency response uniformity issue.
3Reliability
If phase plate with curved cross-section support rib is added, then frequency response at 6 kHz-18 kHz is improved, but device complexity increases
Solution Approach 1:
The phase plate is segmented into distinct functional elements: the main plate structure and the curved cross-section support ribs. This segmentation allows each component to be optimized independently for its specific function while keeping the overall design manageable. The support ribs are positioned at specific locations to target particular frequency ranges, reducing the need for complex overall redesign.
Solution Approach 2:
The curved cross-section of the support ribs is specifically designed to create optimal acoustic reflections for the target frequency range. The curvature geometry is calculated to reflect sound waves at specific angles that constructively interfere with the direct sound, improving frequency response without requiring complex electronic or mechanical systems.
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 addition of the phase plate significantly improves the frequency response curve between 6 kHz-18 kHz, resulting in a smoother overall frequency response for the speaker.
Implementation Method 1
By adding the phase plate, the phase may be adjusted to prevent standing waves
Implementation Method 2
the phase may be adjusted to prevent standing waves
Data Source
AI summary
A full-range speaker with phase plate includes a speaker body disposed with a bracket above and a phase plate including a phase plane. The bracket is adapted to the phase panel. The phase panel is fixed above the bracket. The opposite corners of the phase panel are provided with protruding support ribs, and each of the support ribs meets with each other. By adding the phase plate, the phase may be adjusted to prevent standing waves, and the frequency response characteristics of the speaker may be effectively improved, so that the overall frequency response curve of the full-range speaker is improved at 6 kHz-18 kHz, thereby smoothing the overall frequency response curve of the full-range speaker.