Flexible Cable Electrode Connection for Simpler Vibration Devices
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Solution Overview
Problem
Existing vibration devices require complex manufacturing processes and structures, including patterning and soldering, which hinder the simplification of the device and its production.
Innovation Solution
A flexible cable with a base member, conductor layer, and protection layer is integrated into a vibration device, eliminating the need for soldering and patterning by using a flexible cable with conductive lines that connect directly to electrode layers, allowing for simplified manufacturing and structure design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a film with patterned lines and pad electrodes is used in the vibration device, then electrical connections can be established, but the manufacturing process becomes complex requiring patterning and soldering steps
Solution Approach 1:
The patent extracts and removes the complex film structure with patterned lines and pad electrodes from the vibration device. Instead of using a pre-patterned film requiring soldering, the invention uses a flexible cable with conductive lines that are directly connected to electrode layers, eliminating the need for patterning and soldering processes while maintaining electrical connection reliability
Solution Approach 2:
The patent merges the functions of the film, lines, pad electrodes, and soldering process into a single integrated flexible cable structure. The flexible cable with conductive lines directly connects to the electrode layers, combining multiple manufacturing steps into one simpler process that reduces overall device complexity while preserving electrical connectivity
2Reliability
If a film with lines and pad electrodes is used, then electrical connectivity is achieved, but the device structure becomes more complex
Solution Approach 1:
The invention extracts and eliminates the complex multi-layer film structure with patterned conductive elements. The flexible cable with simple conductive lines replaces the complex film assembly, maintaining electrical connectivity while significantly simplifying the overall device structure
Solution Approach 2:
Instead of starting with a pre-patterned film and adding connections, the invention inverts the approach by using a flexible cable with conductive lines that are inherently designed to connect directly to electrode layers, reversing the traditional manufacturing sequence and simplifying the structure
3Reliability
If soldering and patterning processes are used, then electrical connections are established, but manufacturing time and complexity increase
Solution Approach 1:
The patent extracts and removes the time-consuming patterning and soldering processes from the manufacturing workflow. The flexible cable with pre-formed conductive lines enables direct connection to electrode layers, eliminating multiple manufacturing steps and significantly improving production efficiency while maintaining reliable electrical connections
Solution Approach 2:
The flexible cable is prepared in advance with conductive lines that are ready for direct connection, performing the electrical connection function beforehand. This preliminary preparation eliminates the need for time-consuming patterning and soldering during the final assembly process, thereby improving manufacturing productivity
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 solution simplifies the structure and manufacturing process of vibration devices, enabling thinner and more efficient vibration-based systems with improved electrical characteristics and reduced production complexity.
Implementation Method 1
piezoelectric elements capable of realizing a thin thickness are attracting much attention
Data Source
AI summary
A flexible cable may include a base member including a terminal portion, a conductor layer including a plurality of conductive lines disposed on the base member, and a protection layer disposed on the base member to cover at least prat of the conductor layer and to expose a portion of each of the plurality of conductive lines at the terminal portion. A length of each of the plurality of conductive lines may be longer than a length of the base member. A vibration device may include a vibration structure including a vibration layer, a first electrode layer disposed on a first surface of the vibration layer, and a second electrode layer disposed on a second surface of the vibration layer and a flexible cable electrically connected to the first electrode layer and to the second electrode layer of the vibration structure.