Flexible Wiring Board for Endoscope Imaging Module Assembly
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Solution Overview
Problem
The assembly of imaging apparatus in endoscopes is challenging due to the complexity of handling components, which hinders ease of assembly and increases the risk of defects and costs.
Innovation Solution
An imaging module is designed with a flexible wiring board that connects the imaging device to the electrical cable, featuring a device mounting portion with a bent rear portion and conductive terminal connections, and an outer frame member with a movement restriction portion to secure the module in place, facilitating easier assembly and reducing assembly steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional imaging apparatus with separate circuit board and imaging device is used, then electrical connection is achieved, but assembly handling becomes complex and difficult
Solution Approach 1:
The patent combines the circuit board and imaging device into an integrated imaging module. The flexible wiring board integrates both the circuit board function and the imaging device mounting function, eliminating the need for separate assembly steps and reducing handling complexity.
Solution Approach 2:
The imaging module is segmented into distinct functional portions: a device mounting portion for the imaging device and a rear portion for cable connection. This segmentation allows each portion to be optimized independently while simplifying the overall assembly process.
2Productivity
If multiple separate components are assembled, then functional requirements are met, but the number of assembly steps increases
Solution Approach 1:
By merging the circuit board and imaging device into a single integrated module, the patent reduces the number of assembly steps required. The flexible wiring board serves multiple functions simultaneously, eliminating sequential assembly operations and reducing overall assembly time.
3Ease of operation
If the wiring board extends straight from mounting surface, then electrical connection is simple, but component alignment and positioning becomes difficult
Solution Approach 1:
The patent introduces a bent portion in the flexible wiring board that curves the connection path. This curvature allows the wiring board to navigate around obstacles and align properly with both the imaging device mounting surface and the rear cable connection point, facilitating easier positioning and assembly.
Data Source
AI summary
An imaging module includes: an electrical cable; an imaging device; and a flexible wiring board with wirings electrically connecting the imaging device with the electrical cable. The flexible wiring board includes: a device mounting portion on which the imaging device is mounted, and one end of the device mounting portion in a longitudinal direction has a bent portion; and a rear portion that bends and extends from the bent portion to a side opposite the imaging device. The device mounting portion has a mounting surface intersecting an axial direction of a distal end of the electrical cable, and the imaging device is mounted on the mounting surface, and the wirings extend from the mounting surface, pass through the bent portion, and connect with the electrical cable at the rear portion.