3D PCB Photoelectric Module for Smaller Endoscope Camera Heads
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Solution Overview
Problem
The existing endoscopic devices face challenges in downsizing due to the need for a single printed board to perform multiple functions, such as relaying imaging and control signals, which increases the board's size and hinders miniaturization of the camera head.
Innovation Solution
A photoelectric composite module is introduced, featuring two separate printed boards - one for relaying imaging signals and another for control signals, arranged in a three-dimensional configuration within a tubular outer frame, allowing for reduced size and compact assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single printed board is used to relay both imaging signals and control signals, then the board can perform multiple functions, but the board size increases and camera head downsizing becomes difficult
Solution Approach 1:
The printed board is divided into a first printed board for relaying imaging signals and a second printed board for relaying control signals. This segmentation allows each board to be optimized for its specific function and reduces the overall size required compared to a single multi-functional board, thereby enabling camera head downsizing while maintaining multi-functionality.
Solution Approach 2:
The first and second printed boards are arranged in different plain faces (spatial dimensions) rather than occupying the same plane. This three-dimensional arrangement allows both boards to coexist in a compact space, reducing the camera head volume while preserving the multi-functional capability of relaying both imaging and control signals.
2Adaptability or versatility
If a single printed board is used to relay both imaging signals and control signals, then the board can perform multiple functions, but the structural complexity increases
Solution Approach 1:
The printed board structure is segmented into two separate boards with distinct functions. This segmentation simplifies the overall structure by allowing each board to be designed and manufactured independently with simpler routing and layout requirements, reducing the complexity compared to a single board handling all signal types.
Solution Approach 2:
By arranging the first and second printed boards in different plain faces, the patent creates a modular three-dimensional structure. This spatial separation simplifies the internal wiring and signal routing complexity, as each board can be optimized for its specific signal type without interference from the other function.
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 enables the downsizing of the camera head and endoscopic device by separating signal relay functions across distinct printed boards, reducing overall module size and enhancing compactness.
Implementation Method 1
a photoelectric conversion element configured to convert an electrical signal into an optical signal
Data Source
AI summary
There is provided a photoelectric composite module according to the present disclosure including: a first connecting member having an outer frame having a tubular shape, and a plurality of contacts provided in an interior of the outer frame; a first printed board on which a photoelectric conversion element configured to convert an electrical signal into an optical signal is mounted, and which is configured to act as a relay between the contacts and the photoelectric conversion element; and a second printed board configured to act as a relay between the contacts and an electrical signal cable. The first printed board and the second printed board are three-dimensionally arranged.