Projector Speaker Housing With Integrated Acoustic Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Encapsulating a loudspeaker in an enclosure to improve sound quality and pressure increases the number of parts and assembly man-hours, leading to higher costs in projectors.
Innovation Solution
A projector design that integrates a wall section extending along the loudspeaker's frame, forming a sealed space behind the loudspeaker to isolate sound waves from opposite phases, reducing the need for additional sealing components and minimizing part count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If the loudspeaker is encapsulated in a separate enclosure to improve sound quality and pressure, then sound pressure is improved, but the number of parts increases leading to higher cost and assembly man-hours
Solution Approach 1:
The patent combines the enclosure function with the existing housing structure by having the wall section of the housing extend along the frame of the loudspeaker. This integration eliminates the need for a separate enclosure component while maintaining the acoustic sealing function, thereby improving sound pressure without increasing the number of parts or assembly complexity
2Reliability
If the loudspeaker is encapsulated in a separate enclosure to prevent low-frequency sound cancellation, then sound quality is improved, but assembly man-hours increase
Solution Approach 1:
The enclosure function is merged into the existing housing wall section that extends along the loudspeaker frame. This integration allows the acoustic sealing to be achieved as part of the existing housing structure, eliminating separate assembly steps for installing a dedicated enclosure and thereby reducing assembly man-hours while maintaining sound quality
3Stress or pressure
If a separate enclosure is used to isolate sound waves from opposite phases, then sound pressure is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges the enclosure function with the existing housing structure, so that the wall section serving as the enclosure is formed as an integrated part of the housing. This eliminates the need for separate manufacturing and assembly of a dedicated enclosure component, thereby reducing manufacturing cost while maintaining the sound isolation function that improves sound pressure
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
Improves sound pressure by about 3 dB and suppresses chattering noise, while maintaining efficient assembly and reducing costs by integrating the wall section with existing housing components.
Implementation Method 1
the first container has a wall section extending along the frame... forms a sealed space behind the loudspeaker to isolate sound waves from opposite phases
Data Source
AI summary
A projector includes an outer housing, a single inner housing housed in the outer housing and including a first container and a second container, the second container housing a functional element, and a loudspeaker housed in the first container and including a frame, and the first container has a wall section extending along the frame.