Speaker Box Leakage Hole Gradient Aperture Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional speaker boxes with constant aperture leakage holes suffer from amplitude deviation during operation, affecting their acoustic performance.
Innovation Solution
A speaker box design featuring a housing with a leakage hole covered by an air-permeable mesh, where the hole's size gradually decreases from the outer to the inner surface, and its shape varies along the vibration direction to stabilize sound transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a leakage hole with constant aperture is used, then the structure is simple and easy to manufacture, but the amplitude of the speaker box deviates during operation, affecting acoustic performance
Solution Approach 1:
The leakage hole is designed with non-uniform aperture distribution, where the aperture size varies at different locations (outer surface vs inner surface). This local variation in quality allows different regions of the leakage hole to serve different functions: the larger outer aperture facilitates air flow while the smaller inner aperture provides structural stability, thereby maintaining acoustic performance without significantly complicating manufacturing
Solution Approach 2:
The aperture parameter of the leakage hole is changed from a constant value to a variable value that transitions from the outer surface to the inner surface. This parameter change (aperture size gradient) enables the leakage hole to dynamically adapt to pressure differential changes during speaker operation, preventing amplitude deviation while remaining manufacturable
2Reliability
If a leakage hole with varying aperture size is used, then acoustic performance is improved, but the manufacturing complexity increases
Solution Approach 1:
The leakage hole is designed with a dynamic aperture distribution that automatically adapts to operating conditions. The aperture size gradually changes from the outer surface to the inner surface, creating a dynamic structure that responds to pressure differentials during speaker operation, thereby maintaining optimal acoustic performance
Solution Approach 2:
The leakage hole design extends into the third dimension by creating a gradient aperture structure that varies along the depth of the hole (from outer to inner surface). This dimensional variation allows the leakage hole to control air flow more precisely while maintaining manufacturability through standard drilling and machining processes
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 design stabilizes the amplitude and enhances acoustic performance by preventing sound deviation and allowing controlled air permeability.
Implementation Method 1
an air-permeable mesh covering the leakage hole
Implementation Method 2
a diaphragm and a magnetic circuit system supported on the frame
Implementation Method 3
a front cavity for transmitting a sound generated by the speaker
Data Source
AI summary
The present invention provides a speaker box including a housing having a receiving room and a speaker received in the receiving room. The speaker includes a frame, a diaphragm and a magnetic circuit system supported on the frame. The speaker separates the receiving room into a front cavity for transmitting a sound and a rear cavity. The speaker has a back cavity, and the back cavity is communicated with the rear cavity. The housing includes an outer surface and an inner surface. The housing includes a leakage hole communicating the rear cavity and an outside. The speaker box further includes an air-permeable mesh covering the leakage hole. A size of the leakage hole located on the outer surface is larger than the size of the leakage hole located on the inner surface. The speaker box of present invention can effectively avoid the problem of amplitude deviation during work.