Speaker Module Connector Structure for Compact Air Sealing
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Solution Overview
Problem
Existing speaker modules in portable mobile terminals face issues with miniaturization due to glue height increase and potential air leakage, which affect sound performance.
Innovation Solution
A speaker module design with a yoke fixed to the bottom cover and a connector system that maintains miniaturization by eliminating the need for external yoke exposure, using a thinner edge portion and groove to accommodate the yoke, ensuring sealability and acoustic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the yoke is exposed outside the housing through a hole and glued to the housing for sealing, then the sealability is improved, but the height of the speaker module increases affecting miniaturization
Solution Approach 1:
The invention extracts the sealing function from the traditional external yoke configuration and relocates it to an internal connector structure. The connector is integrated within the housing and provides sealing without requiring the yoke to be exposed outside, thereby eliminating the height increase while maintaining sealability.
Solution Approach 2:
The invention transitions from a horizontal sealing approach (external yoke glued to housing) to a vertical integration approach (connector integrated within housing structure). This dimensional reorganization allows sealing to be achieved through the connector's internal positioning rather than external attachment, reducing the height dimension.
2Reliability
If glue is used to seal the yoke to the housing, then air leakage is prevented, but the glue height increases affecting miniaturization
Solution Approach 1:
The invention extracts the sealing function from the glue layer and transfers it to the connector structure itself. The connector is designed with sealing features integrated into its geometry, eliminating the need for additional glue height while maintaining air tightness between the yoke and housing.
3Ease of manufacture
If the yoke is exposed outside the housing, then the magnet system can be assembled, but the speaker module cannot be miniaturized due to height constraints
Solution Approach 1:
The invention implements nesting by placing the connector and yoke assembly inside the housing rather than exposing them externally. The connector surrounds the yoke and both are integrated within the housing boundaries, creating a nested configuration that maintains assembly ease while reducing overall height.
Solution Approach 2:
The invention reorganizes the magnet system assembly from an external horizontal arrangement to an internal vertical integration. The yoke and connector are positioned within the housing's vertical space, utilizing the internal volume efficiently to maintain manufacturability while minimizing the external height dimension.
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 enhances sealability and acoustic performance by preventing air leakage and maintaining a compact size, while avoiding glue-related issues.
Implementation Method 1
a coil fixed to the diaphragm and inserted into the magnetic gap
Implementation Method 2
a vibration system mounted on the frame, including: a diaphragm fixed to the frame; and a coil fixed to the diaphragm
Data Source
AI summary
The present disclosure discloses a speaker module including a housing and a speaker unit received in the housing, comprising: a frame, a magnet system, including: a yoke fixed to the frame; and a first magnet fixed to the yoke; a vibration system mounted on the frame, including: a diaphragm fixed to the frame; and a coil fixed to the diaphragm and inserted into the magnetic gap; a connector surrounding the yoke and configured to connect the yoke with frame; wherein the housing includes an upper cover enclosing a front cavity with the diaphragm, a bottom cover fixed to the yoke, and a side wall enclosing the receiving space with the upper cover and the bottom cover; a surface of the yoke away from the first magnet is fixed to the bottom cover; the speaker module in the present disclosure has high sealability.