Integrated Sounding Driver With Vertical Sealing Film for Haptic Feedback
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Solution Overview
Problem
Existing portable electronic devices face challenges in assembly and internal space utilization due to separate sound playback and vibration sensing components, which are independent and occupy excessive space.
Innovation Solution
A multifunctional sounding device with a sounding driver that includes a housing, a flexible sealing film, and a magnetic circuit system, allowing for dual functionality of sound playback and vibration feedback within the same dimensions by vertically arranging the sealing film to simplify assembly and enhance acoustic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate speakers and motors are used for sound playback and vibration sensing, then each component can be optimized independently, but the device occupies more internal space and assembly becomes less favorable
Solution Approach 1:
The patent combines the speaker and motor into a single integrated unit where the vibration system serves dual purposes: generating sound through the diaphragm and providing vibration feedback through the same structural components. This merging eliminates the need for separate motor housing and reduces overall device volume while maintaining independent optimization of acoustic and haptic functions through dedicated magnetic circuit and vibration control mechanisms.
Solution Approach 2:
The vibration system is designed with multi-functionality, where the same diaphragm and magnetic circuit structure performs both sound playback and vibration feedback functions. The basket frame and suspension system serve as common structural elements for both acoustic radiation and haptic actuation, allowing a single component to fulfill multiple roles and reduce the total number of parts required in the device.
2Reliability
If multiple independent devices are used for sound and vibration functions, then each device can be optimized for its specific function, but assembly complexity increases
Solution Approach 1:
The patent merges the speaker and motor assemblies into a single integrated unit with shared structural components including the basket frame, suspension system, and magnetic circuit elements. This consolidation reduces the number of separate assemblies that need to be handled during manufacturing, simplifying the assembly process while preserving the functional optimization of both sound playback and vibration feedback through dedicated control mechanisms.
3Reliability
If the sounding driver is enlarged to improve acoustic performance, then acoustic quality increases, but the device occupies more space
Solution Approach 1:
The patent utilizes the vertical dimension by arranging the magnetic circuit system and vibration system in a stacked configuration within the housing. The magnetic circuit system is positioned above the vibration system, with the magnetic gap extending vertically. This vertical arrangement allows the sounding driver to achieve larger effective dimensions for improved acoustic performance without increasing the horizontal footprint of the device, effectively trading horizontal space for vertical space.
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 device enlarges the size of the sounding driver while improving acoustic performance and enabling horizontal vibration functionality through a flexible sealing film that deforms during operation.
Implementation Method 1
a magnetic circuit system configured to drive the vibration system to vibrate along a first direction to generate sound
Implementation Method 2
a coil fixed to the housing and configured to drive the sounding driver to vibrate along a second direction
Implementation Method 3
the flexible sealing film can undergo deformation in the horizontal direction, meeting the horizontal vibration function of the sounding driver
Data Source
AI summary
The present application provides a multifunctional sounding device including a housing with an accommodating cavity and a sounding driver including a basket frame, a vibration system fixed to the basket frame, and a magnetic circuit system configured to drive the vibration system to vibrate along a first direction to generate sound. The multifunctional sounding device further includes a coil configured to drive the sounding driver to vibrate along the second direction, an elastic connecting member, and a flexible sealing film. The housing includes an upper cover body, a lower cover body, and a side wall. The side wall is provided with a sound-emitting hole. The flexible sealing film includes an annular body portion and an extension portion. The solution employs a method of vertically arranging the sealing film, thereby simplifying the molding and assembly process of the sealing film while achieving dual functionality of sound playback and vibration feedback.