Speaker Box Metal Cover Case Leakage Hole Blockage
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Solution Overview
Problem
Existing speaker boxes face issues with leakage holes being blocked by the housing structure or glue, which affects the acoustic performance.
Innovation Solution
The speaker box design includes a metal cover case with leakage holes recessed from the edge, and a metal ring structure that avoids blocking these holes, while also preventing glue from reaching them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plastic cover plate is used to cover the magnetic bowl, then the structure is simple and easy to manufacture, but the leakage holes are blocked by the plastic case, affecting acoustic performance
Solution Approach 1:
The patent removes the plastic cover plate from the structure and replaces it with a metal ring that does not block the leakage holes. This extraction of the problematic plastic component eliminates the blockage issue while maintaining structural coverage functionality through the metal ring alternative.
Solution Approach 2:
The metal ring serves as an intermediary component that provides structural coverage without interfering with the leakage holes. It mediates between the need for structural coverage and the need for unobstructed acoustic airflow through the leakage holes.
2Stability of the object's composition
If glue is used to fix the magnetic bowl, then the magnetic bowl is securely fixed, but the glue overflows and blocks some leakage holes, affecting product performance
Solution Approach 1:
The patent incorporates a receiving groove into the metal cover case structure before assembly. This preliminary structural preparation provides a designated space for glue accumulation, preventing glue overflow into the leakage holes during the gluing process while maintaining secure fixation of the magnetic bowl.
Solution Approach 2:
The receiving groove acts as an intermediary structure that intercepts and contains the glue, preventing it from reaching and blocking the leakage holes. It mediates between the gluing process and the acoustic pathway through the leakage holes.
3Reliability
If the leakage holes are positioned at the edge of the metal cover case, then the acoustic performance is improved, but the holes are more susceptible to blockage by housing structure or glue
Solution Approach 1:
The patent positions the leakage holes in the side wall of the metal cover case rather than on the top surface where they would be most vulnerable to blockage. This dimensional repositioning moves the holes to a location that is less accessible to housing structure and glue overflow, reducing blockage susceptibility while maintaining acoustic performance.
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 effectively improves the acoustic performance of the speaker box by maintaining the integrity of the leakage holes and preventing glue from obstructing them.
Implementation Method 1
the second rear cavity is filled with sound-absorbing particles
Implementation Method 2
the magnetic circuit system includes a magnetic bowl and a magnetic steel component fixed on the magnetic bowl
Data Source
AI summary
A speaker box is provided and includes a housing defining a receiving space; and a speaker driver received in the receiving space. The speaker driver includes a basin frame, and a diaphragm and a magnetic circuit system. The speaker driver further includes a metal cover case fixed on the basin frame and the magnetic bowl. The metal cover case includes a bottom wall connected with the magnetic bowl and a side wall bent and extended from the bottom wall, and the leakage hole communicatively couples the first rear cavity with the second rear cavity. The speaker box further includes a metal ring covered on the magnetic bowl and the metal cover case, and the magnetic bowl, the metal cover case, and the metal ring are glued and fixed to one another. In this way, it is possible to effectively avoid blockage of the leakage holes.