Ribbon Speaker Flexible Substrate Soldering Access
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Solution Overview
Problem
The manufacturing process of miniaturized ribbon speakers faces challenges with high soldering difficulty, which hinders accurate and rapid production.
Innovation Solution
The design includes a flexible substrate with soldering portions arranged outside the housing, reducing the complexity of soldering and enabling more efficient assembly of the ribbon speaker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the ribbon speaker is miniaturized for small terminal devices, then the device becomes more suitable for mobile applications, but the soldering difficulty increases during manufacturing
Solution Approach 1:
The patent extends the flexible substrate beyond the housing boundaries in the spatial dimension, allowing soldering portions to be accessed from outside the housing. This dimensional extension transforms the soldering operation from an internal constrained process to an external accessible process, resolving the contradiction between miniaturization and manufacturability
Solution Approach 2:
The flexible substrate serves as an intermediary element that bridges the internal coil connection and external soldering access. By positioning soldering portions on the external side of the housing through this flexible intermediary, the patent enables easy soldering without compromising the miniaturized internal structure
2Device complexity
If the soldering portions are arranged inside the housing, then the structure is compact, but the soldering process becomes complex and time-consuming
Solution Approach 1:
The flexible substrate protrudes from the housing in the spatial dimension, creating external access points for soldering. This dimensional arrangement maintains internal structural compactness while enabling external soldering operations, thereby improving production speed without sacrificing structural integrity
Solution Approach 2:
The flexible substrate is pre-positioned and extended beyond the housing during assembly, preparing the soldering portions for external access before the soldering process begins. This preliminary arrangement eliminates the need for disassembly or complex positioning during soldering, enhancing production efficiency
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 configuration simplifies the soldering process, allowing for more accurate and rapid production of miniaturized ribbon speakers, which is beneficial for lightweight and low-power consumption applications in mobile devices.
Implementation Method 1
The coil, formed on the ribbon diaphragm, includes two first connection portions. The flexible substrate includes a body, two second connection portions, and two soldering portions
Implementation Method 2
When the current passes through the ribbon, the ribbon will be affected by the magnetic field, causing the ribbon to vibrate and produce sound
Implementation Method 3
The ribbon diaphragm is arranged between the first magnet assembly and the second magnet assembly. The same poles of the first magnet assembly and the second magnet assembly are arranged opposite to each other
Data Source
AI summary
A ribbon speaker includes a housing, first and second magnet assemblies, a ribbon diaphragm, a coil, and a flexible substrate. The first and second magnet assemblies is arranged in the housing. The same poles of the first magnet assembly and the second magnet assembly are arranged opposite to each other. The diaphragm is positioned between these magnet assemblies. The coil, placed on this diaphragm, includes two first connection portions. The flexible substrate includes a body, two connection portions, and two soldering portions. The body's first part is inside the housing, while the second part arranged outside. The second connections on the body's first part electrically connected to the coil's first connections. The externally positioned soldering portions facilitate easier assembly, significantly reducing soldering complexity. The soldering portions are respectively and electrically connected to the second connection portions. This improvement ensures the ribbon speaker is more accurately and more rapidly produced.