Speaker Cup-Shaped Support Radial Grooves Cooling
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Solution Overview
Problem
Existing speaker cooling designs, such as forming holes on the U-shaped yoke or voice coil frame, either compromise the structural integrity and sealing of ultra-thin speakers, leading to wind noise and increased manufacturing costs, or fail to effectively cool the diaphragm by not allowing airflow through it.
Innovation Solution
A speaker design featuring a cup-shaped support with radial grooves and protrusions that guide airflow over the diaphragm surface, maintaining sound quality and reducing manufacturing costs by eliminating holes on the U-shaped yoke, while enhancing cooling through airflow circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a hole is formed on the bottom of the U-shaped yoke for cooling, then the voice coil can be cooled, but the speaker box cannot be sealed and wind noise is generated significantly
Solution Approach 1:
The invention divides the cooling function into two separate pathways: one for the voice coil (through the U-shaped yoke hole) and one for the diaphragm (through the cup-shaped support grooves). This segmentation allows the voice coil cooling to occur without compromising the speaker box sealing, as the diaphragm cooling pathway is independent and does not require external exposure.
Solution Approach 2:
The cup-shaped support with its grooves acts as an intermediary structure that guides airflow across the diaphragm surface. The grooves serve as channels that direct the cooling air flow, enabling effective diaphragm cooling without requiring holes in the U-shaped yoke that would compromise sealing and generate wind noise.
2Temperature
If holes are formed on the voice coil frame or cup-shaped support, then cooling is provided, but airflow does not pass through the surface of the diaphragm, limiting cooling effects
Solution Approach 1:
The invention applies local quality by creating grooves specifically on the cup-shaped support structure where they can directly interact with the diaphragm surface. This localized modification ensures that the cooling airflow is directed precisely where needed (across the diaphragm surface) rather than providing generic cooling elsewhere in the structure.
Solution Approach 2:
The grooves on the cup-shaped support create a three-dimensional airflow pathway that allows air to flow across the diaphragm surface in a radial direction. This dimensional approach to cooling pathway design enables the airflow to effectively contact and cool the diaphragm surface area, transforming the cooling from a point-based to a surface-based approach.
3Length of moving object
If the U-shaped yoke is disposed outside the speaker box for ultra-thin design, then structural layout limitations are met, but forming a hole compromises sealing and increases manufacturing cost
Solution Approach 1:
The invention merges the cooling function with the existing cup-shaped support structure that is already part of the voice coil assembly. By integrating the cooling grooves into this existing component, the design achieves effective cooling without adding separate cooling structures that would increase complexity or compromise sealing in ultra-thin speaker configurations.
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 effectively cools the diaphragm, reducing its surface temperature and maintaining sound quality without the drawbacks of wind noise or increased costs associated with traditional cooling methods.
Implementation Method 1
the grooves extends in radial directions of the cup-shaped support to form air passages
Data Source
AI summary
A speaker includes a basket; a diaphragm, supported on the basket through a surround; and a voice coil, including a cup-shaped support connected to the basket through a damper. An upper periphery of the cup-shaped support includes protrusion portions in contact with a lower surface of the diaphragm and grooves spaced apart from the diaphragm. The grooves extend in radial directions of the cup-shaped support to form air passages.