Loudspeaker Damper Resin Flexibility for High Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing loudspeaker dampers fail to maintain stability and shape-keeping properties under high output conditions, leading to reduced minimum resonance frequency and potential gap failure due to insufficient binding strength between the damper base material and resin, and surface cracking from partial interface peeling.
Innovation Solution
Incorporating a thermosetting resin with 2 to 20 wt% flexibility imparting agents, such as liquid acrylonitrile-butadiene rubber, into the damper material, and optionally subjecting the base material to corona or plasma discharge treatment to enhance wettability and binding strength, allowing for improved flexibility and resistance to large amplitude oscillations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional resin impregnation is used without flexibility imparting agents, then the damper structure is simple and manufacturing is easier, but the damper lacks flexibility and binds too rigidly causing resonance frequency reduction and gap failure under high output conditions
Solution Approach 1:
The patent modifies the resin composition by adding flexibility imparting agents (rubber particles, liquid rubbers, or polymer compounds) at specific concentrations (2-20 wt%) to change the mechanical properties of the resin. This parameter change enables the resin to provide both binding strength and flexibility, preventing rigid over-constraint while maintaining structural integrity under high output conditions.
Solution Approach 2:
The patent creates a composite resin system combining thermosetting resin with flexibility imparting agents such as rubber particles, liquid rubbers, or polymer compounds. This composite material approach allows the resin to simultaneously provide structural binding and flexible movement, resolving the contradiction between rigidity for stability and flexibility for high output performance.
2Stability of the object's composition
If the damper uses strong binding between base material and resin to maintain stability, then shape-keeping property is improved, but surface cracking occurs due to insufficient flexibility under large amplitude oscillations
Solution Approach 1:
The patent changes the resin's mechanical parameters by incorporating flexibility imparting agents that modify the resin's modulus and tensile strength. This allows the resin to maintain strong binding for shape-keeping while having sufficient flexibility to accommodate large amplitude oscillations without cracking.
Solution Approach 2:
The flexibility imparting agents are distributed throughout the resin matrix to provide localized flexibility where needed. The rubber particles or liquid rubber components create zones of flexibility within the resin that can deform under stress while maintaining overall structural integrity and binding strength.
3Strength
If thermosetting resin is used for the damper, then binding strength and shape-keeping are improved, but flexibility is reduced causing the damper to be too rigid for high output operation
Solution Approach 1:
The patent combines thermosetting resin with flexibility imparting agents to create a composite material that maintains the high binding strength and shape-keeping properties of thermosetting resin while adding the flexibility needed for high output operation. The rubber particles, liquid rubbers, or polymer compounds provide the necessary adaptability without compromising the resin's binding capabilities.
Solution Approach 2:
The patent modifies the resin's physical and mechanical parameters by adding flexibility imparting agents at controlled concentrations. This changes the resin from a purely rigid thermosetting material to a composite material with adjusted modulus, tensile strength, and flexibility, enabling it to perform both strongly and adaptably under varying conditions.
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 solution provides a loudspeaker damper with enhanced durability and high input resistance, preventing resin layer cracking and maintaining performance over time, even under high temperature and humidity conditions, thus ensuring high-quality and reliable operation with wide dynamic range and large output capabilities.
Implementation Method 1
thermosetting resin including 2 to 20 wt % of flexibility imparting agent
Implementation Method 2
subjecting the base material to corona or plasma discharge treatment to enhance wettability and binding strength
Implementation Method 3
subjecting the base material to corona or plasma discharge treatment to enhance wettability and binding strength
Implementation Method 4
a damper base material is introduced, then impregnated with resin
Data Source
AI summary
A loudspeaker damper, a manufacturing method thereof, and a loudspeaker, electronic equipment and device using the loudspeaker damper. The damper has flexibility. Therefore, even if a large input is applied and the damper oscillates with a large amplitude, a resin layer provided on the surface of the damper base material is not cracked due to partial interface peeling. Thus, the damper follows such a large amplitude and realizes high input-resistance. This loudspeaker damper material is obtained by impregnating a material with thermosetting resin including 2 to 20 wt % of flexibility imparting agent and heat-curing thereof.