Thin Double-Sided Speaker Asymmetric Magnet for Vibration Reduction
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Solution Overview
Problem
Conventional speakers face challenges in achieving thinness while maintaining two-way sounding and reducing vibration, as symmetrical designs of vibration components and magnet members hinder thinning.
Innovation Solution
A thin double-sided vibrating speaker design featuring a magnet member with a central plate and side plate bodies, laminated magnetic path units, and movable voice coils and diaphragms, which allows for independent magnetic fields and ventilation to reduce overall height and vibration, enabling two-way sounding and vibration reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If symmetrical design of vibration components and magnet members is used to achieve two-way sounding, then two-way sounding effect is improved, but speaker thickness cannot be reduced
Solution Approach 1:
The patent applies asymmetry by configuring the magnet member with a central plate body and side plate bodies where the side plate bodies are positioned asymmetrically relative to the central plate. The magnetic path units are arranged asymmetrically with the first magnetic path unit having different configuration compared to the second magnetic path unit, allowing independent magnetic fields while reducing overall thickness.
Solution Approach 2:
The magnet member is segmented into multiple independent components: central plate body, side plate bodies, first magnetic path unit, second magnetic path unit, and side magnetic path units. This segmentation allows each component to be independently configured and positioned to achieve two-way sounding while minimizing the overall thickness of the speaker assembly.
2Adaptability or versatility
If vibration components and magnet members are combined in symmetrical design, then two-way sounding is achieved, but vibration reduction effect is compromised
Solution Approach 1:
The asymmetric configuration of the magnet member with central and side plate bodies, combined with independently configured magnetic path units, creates unequal magnetic field distributions that help cancel unwanted vibrations while maintaining two-way sounding capability.
Solution Approach 2:
The patent converts the potentially harmful vibrations generated by the speaker into beneficial effects by using the vibration control structure and asymmetric magnetic field configuration to cancel unwanted vibrations, transforming the vibration problem into an advantage for reducing noise and improving sound quality.
3Length of moving object
If thin design is implemented, then speaker thickness is reduced, but magnetic field strength and vibration control are compromised
Solution Approach 1:
The magnetic path is segmented into multiple independent units (first, second, and side magnetic path units) that can be independently configured to maintain magnetic field strength while allowing for a thinner overall design. Each magnetic path unit contributes to the overall magnetic field while enabling independent optimization for strength and thickness.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of the magnetic path units and plate bodies to maintain magnetic field strength in a thinner profile. By distributing magnetic path components across different spatial dimensions rather than increasing thickness, the design maintains magnetic field strength while reducing the overall thickness of the speaker.
4Object-generated harmful factors
If ventilation parts are added to control air flow, then vibration reduction is improved, but device complexity increases
Solution Approach 1:
The ventilation parts are merged with the existing magnet member structure, specifically integrated into the central plate body or side plate bodies. This merging approach allows the ventilation function to be achieved without adding separate, complex vibration control components, thereby reducing overall device complexity while maintaining vibration reduction effectiveness.
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 design achieves thinness, two-way sounding, and vibration reduction by creating independent magnetic fields and utilizing ventilation to control air flow and force offset, enhancing output volume and preventing unnecessary vibration and noise.
Implementation Method 1
the first voice coil is movably configured between the first magnetic path unit and each the side magnetic path unit, the second voice coil is movably configured around the outer periphery of the second magnetic path unit
Implementation Method 2
the first magnetic path unit and the second magnetic path unit are laminated with each other through the communication part, the side magnetic path units respectively correspond to two sides of the first magnetic path unit
Implementation Method 3
the central plate body is provided with at least one ventilation part that communicates the surface and another surface thereof
Data Source
AI summary
A thin double-sided vibrating speaker includes a magnet member, a first vibration assembly and a second vibration assembly; the magnet member includes a main magnetic plate, a first magnetic path unit, a second magnetic path unit and side magnetic path units, the first magnetic path unit is disposed on one surface of the main magnetic plate, the second magnetic path unit is disposed on another surface of the main magnetic plate, the side magnetic path units are disposed on the main magnetic plate and correspond to two sides of the first magnetic path unit, the first vibration assembly is disposed on one surface of the magnet member, and the second vibration assembly is disposed on another surface of the magnet member. Accordingly, in addition to achieving the requirement of thinning, the thin double-sided vibrating speaker of the present disclosure also has the effect of vibration reduction and two-way sounding.