Speaker Conductive Terminal Elasticity Optimization
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Solution Overview
Problem
Conductive terminals in existing speakers for portable devices have weak working elasticity due to excessive length, leading to deformation and poor contact, resulting in a short service life.
Innovation Solution
The speaker design features conductive terminals with shorter elastic arms and force arms, where the extending arms extend from opposite sides of the soldering sheets, and the connecting arms extend towards each other, enhancing elasticity and firm fixation through injection molding, reducing deformation and improving service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the elastic arm is extended from the connecting arm along the side wall towards a direction close to the other end of the side wall, then the conductive terminal can reach the contacting position, but the length of the force arm becomes too long, resulting in weak working elasticity
Solution Approach 1:
The patent changes the geometric parameters of the conductive terminal by reducing the length of the elastic arm and force arm. This parameter modification directly addresses the issue of weak working elasticity caused by excessive length, while still maintaining the terminal's ability to reach the contacting position through optimized configuration.
2Ease of manufacture
If the connecting arm is bent and extended from an end of the side wall, then the conductive terminal can be formed, but the excessive length increases the force arm length, leading to deformation over time
Solution Approach 1:
The patent modifies the dimensional parameters of the conductive terminal components, specifically reducing the length of the elastic arm and force arm. This change maintains manufacturability while significantly improving structural stability and preventing deformation over time.
3Ease of operation
If the elastic arm is made longer to reach the contacting hook, then the conductive terminal can make contact, but the working elasticity becomes weak and service life is reduced
Solution Approach 1:
The patent optimizes the length parameters of the elastic arm and force arm to achieve the minimum necessary length for contacting capability. This parameter optimization ensures the conductive terminal can make contact while maintaining strong working elasticity and extending service life.
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
This design enhances the working elasticity and extends the service life of the conductive terminals by reducing the length of the elastic arms and force arms, ensuring better contact and durability.
Implementation Method 1
the voice coil of the vibrating system is subjected to a alternating driving force in a magnetic circuit system so as to generate an alternating motion
Implementation Method 2
the elastic arm is formed by the connecting arm extending along the side wall... the elastic arm will easily deform over time
Data Source
AI summary
The present invention discloses a speaker which has a frame formed by side walls, a vibrating system and two conductive terminals. Each of the conductive terminal includes a soldering sheet, an extending arm, a connecting arm bending and extending from the extending arm and arranged on opposite to the soldering sheet, an elastic arm, and a contacting hook. The two extending arms respectively extend from the two soldering sheets at the sides away from each other. The two connecting arms respectively extend from the two extending arms towards the direction close to each other, and the elastic arms are arranged spaced from the side walls. Compared with the related art, the conductive terminals of the speaker of the present invention have the advantages of strong working elasticity and long service life.