Speaker Yoke Leakage Structure with Air-Permeable Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing speaker devices for portable electronic products face challenges in full sealing during assembly, leading to complex assembly processes and risks of powder leakage due to the need for three-dimensional mesh cloth, which is prone to deformation and leakage.
Innovation Solution
A speaker device with a yoke leakage structure that incorporates an air-permeable isolation member with a bottom wall and side wall, where the side wall bends and extends from the bottom wall to cover the leakage port, and includes leakage holes to prevent external sound-absorbing particles from entering the sound-producing inner cavity, allowing for self-sealing without the need for three-dimensional mesh cloth during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If three-dimensional mesh cloth is used to cover the speaker device from the back to realize full filling, then the speaker device can be sealed, but the assembly process becomes complicated and there is a risk of powder leakage caused by deformation
Solution Approach 1:
The patent extracts the sealing function from the three-dimensional mesh cloth and transfers it to the air-permeable isolation member integrated with the yoke structure. This eliminates the need for separate mesh cloth assembly while maintaining sealing performance, directly resolving the contradiction between reliability and assembly complexity
Solution Approach 2:
The air-permeable isolation member is merged with the yoke to form an integrated structure where the isolation member includes a bottom wall fixed to the yoke and a side wall extending from the bottom wall. This integration eliminates the need for separate mesh cloth components and simplifies the assembly process while maintaining sealing functionality
2Reliability
If three-dimensional mesh cloth is used to cover the speaker device, then full filling is realized, but powder leakage risk increases due to deformation of the mesh cloth
Solution Approach 1:
The patent removes the three-dimensional mesh cloth from the system and replaces it with the air-permeable isolation member that has a rigid or semi-rigid structure. This extraction eliminates the deformation issue inherent in mesh cloth while maintaining the sealing function, thereby reducing powder leakage risk
Solution Approach 2:
The air-permeable isolation member functions as a flexible barrier that can adapt to the speaker device geometry while maintaining structural integrity. Unlike the three-dimensional mesh cloth, this isolation member provides a continuous sealing surface that prevents powder leakage while allowing air permeability for acoustic function
3Object-generated harmful factors
If the yoke and frame are spaced to form a leakage port, then acoustic performance is improved, but external sound-absorbing particles can enter the sound-producing inner cavity
Solution Approach 1:
The air-permeable isolation member is made of porous material that allows air to pass through while blocking sound-absorbing particles. This enables the leakage port to maintain its acoustic function for sound diffusion while preventing particle contamination of the sound-producing inner cavity, resolving the contradiction between acoustic performance and particle protection
Solution Approach 2:
The air-permeable isolation member acts as an intermediary element positioned at the leakage port. It mediates between the need for acoustic performance (requiring open leakage ports) and the need to prevent particle contamination, by allowing air flow while blocking particles through its porous structure
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 air-permeable isolation member effectively seals the sound-producing inner cavity from external particles, simplifying the assembly process and eliminating the risk of powder leakage, while maintaining good acoustic performance and enabling miniaturization of the speaker device.
Implementation Method 1
The air-permeable isolation member completely covers the leakage port... configured to isolate external sound-absorbing particles from entering the sound-producing inner cavity
Data Source
AI summary
A speaker device is provided. The speaker device includes a frame, and a vibration unit, a magnetic circuit unit, and air-permeable isolation member. The magnetic circuit unit includes a yoke fixed to the frame. The yoke and the frame are spaced to form a leakage port to enable leaking from a side surface of the speaker device. The sound-producing inner cavity communicates with the leakage port. The air-permeable isolation member completely covers the leakage port. The leakage port communicates with the outside through the leakage hole. Compared with the related art, the speaker device of the present disclosure has a yoke leakage structure, which can realize self-sealing and is conducive to assembling.