Multifunctional Electromagnetic Transducer with Flexible Support
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Solution Overview
Problem
Existing multifunctional electromagnetic transducers in consumer electronic devices suffer from slow vibration response times, leading to poor user experience as they require separate devices for voice and vibration feedback, increasing device volume and complexity.
Innovation Solution
A multifunctional electromagnetic transducer design featuring a housing with a sound port, a speaker frame, a vibration system, and a magnetic circuit system suspended by a flexible support, allowing for simultaneous sound and vibration generation with improved motor driving force and reduced starting and braking times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate devices are used for voice and vibration feedback, then each device can be optimized for its specific function, but the overall device volume increases and system complexity increases
Solution Approach 1:
The patent combines voice feedback and vibration feedback functions into a single electromagnetic transducer device. The electromagnetic transducer includes a vibration system that can simultaneously produce acoustic output and vibration output, eliminating the need for separate voice and vibration devices, thus reducing overall device volume while maintaining functional optimization.
Solution Approach 2:
The electromagnetic transducer is designed to perform multiple functions: it can operate as a voice output device through the diaphragm and as a vibration output device through the magnetic circuit system. This multi-functional design allows one device to replace what would traditionally require two separate devices, reducing system complexity and volume.
2Reliability
If separate devices are used for voice and vibration feedback, then each device can be optimized for its specific function, but the system complexity increases
Solution Approach 1:
The patent merges voice and vibration feedback functions into a single integrated electromagnetic transducer system. By combining the voice output mechanism (diaphragm, voice coil) and vibration output mechanism (magnetic circuit system with movable magnets) into one device, the system complexity is reduced compared to using two separate devices, while each function remains optimized through dedicated structural components.
Solution Approach 2:
The electromagnetic transducer is designed as a universal device capable of both voice and vibration feedback. The shared electromagnetic actuation mechanism and common housing structure reduce system complexity, while the specialized vibration system and acoustic system components ensure each function is optimized for its specific purpose.
3Volume of stationary object
If a multifunctional sounding device integrates different functions, then device volume is reduced, but the vibration response time becomes long and user experience deteriorates
Solution Approach 1:
The patent segments the electromagnetic transducer into distinct functional modules: a vibration system with diaphragm for voice output, and a magnetic circuit system with movable magnets for vibration output. The magnetic circuit system is suspended by a flexible support, allowing independent vibration motion. This segmentation enables each subsystem to be optimized for its specific function, with the vibration system achieving fast response time despite the integrated design.
Solution Approach 2:
The magnetic circuit system is designed with a flexible support that allows dynamic motion. The yoke extension portion can bend and extend, and the magnetic circuit system is suspended to move along the vibration direction. This dynamic design enables the magnetic circuit system to respond quickly to electrical signals, achieving fast vibration response time while maintaining the integrated multifunctional structure.
4Stability of the object's composition
If the magnetic circuit system is fixed rigidly, then structural stability is improved, but the vibration response speed decreases
Solution Approach 1:
The magnetic circuit system is designed with dynamic characteristics through the flexible support. The yoke includes extension portions that can bend and extend, allowing the magnetic circuit system to move dynamically along the vibration direction. This dynamic design enables fast vibration response while the flexible support provides sufficient structural stability during operation.
Solution Approach 2:
The patent uses a flexible support consisting of an elastic portion that connects the magnetic circuit system to the housing. This flexible connection allows the magnetic circuit system to move freely in the vibration direction, achieving fast response speed, while still providing structural support and stability. The elastic portion acts as a flexible membrane that maintains structural integrity during vibration.
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 transducer achieves fast response speeds and enhanced user experience by integrating sound and vibration functions, reducing device volume and complexity through the flexible support mechanism, enabling efficient conversion of electrical signals into both sound and vibration.
Implementation Method 1
a magnetic circuit system received in the accommodating cavity driving the vibration system to vibrate along a first direction and generate sounds
Implementation Method 2
The magnetic circuit system is suspended in the accommodating cavity by the flexible support and moves along the first direction
Data Source
AI summary
The present invention provides a multifunctional electromagnetic transducer including: a housing providing with a sound port and a speaker fixed with the housing. The speaker includes a frame forming an accommodating cavity cooperatively with the housing, a vibration system supported on the frame and received in the accommodating cavity; and a magnetic circuit system received in the accommodating cavity driving the vibration system to vibrate along a first direction and generate sounds. The multifunctional electromagnetic transducer further includes a flexible support disposed on a side of the magnetic circuit system distal to the vibration system and secured to the housing. The magnetic circuit system is suspended in the accommodating cavity by the flexible support and moves along the first direction.