Circuit Board Fixing Structure for Thin Replaceable Light Modules
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Solution Overview
Problem
The existing light irradiation devices have a size constraint due to protruding electrode and fixing plates, which increases thickness and complicates the replacement of light source modules.
Innovation Solution
A circuit board fixing structure with a wire pattern and through holes that allows electrodes to penetrate and connect with the base, enabling both fixation and power supply, reducing the need for separate power supply members and simplifying module replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrode plates and fixing plates are separately provided to stably supply electric power and fix the light source module, then the stability of power supply and fixation is improved, but the thickness of the device is increased
Solution Approach 1:
The patent combines the electrode plate and fixing plate into a single integrated structure. The electrode plate is extended to form a fixing plate portion that protrudes from the light source module, eliminating the need for a separate fixing plate. This merging reduces the overall thickness while maintaining both power supply stability and fixation reliability through the integrated design.
Solution Approach 2:
The electrode plate is designed to serve multiple functions: it supplies electric power to the light source module through its conductive function, and simultaneously acts as a fixing element through its extended fixing plate portion that protrudes to engage with the terminal block. This multi-functionality eliminates the need for separate components, reducing thickness while maintaining reliability.
2Reliability
If electrode plates and fixing plates protrude toward the terminal block to ensure stable connection, then the connection stability is improved, but the device thickness cannot be reduced
Solution Approach 1:
The fixing plate is integrated as an extension of the electrode plate rather than being a separate component. The fixing plate portion protrudes from the light source module to engage with the terminal block, ensuring stable connection, while being part of the same structural element that provides electrical connection, thus avoiding additional thickness from separate components.
Solution Approach 2:
The electrode plate is designed with a three-dimensional structure that extends in multiple directions. The fixing plate portion protrudes in one direction to engage with the terminal block for stable connection, while the main body of the electrode plate maintains electrical contact. This dimensional arrangement allows connection stability without uniformly increasing device thickness.
3Length of moving object
If the fixing plate is integrated with the electrode plate to reduce thickness, then the device size is reduced, but the ease of replacing light source modules is worsened
Solution Approach 1:
The integrated electrode-fixing structure is designed as a removable unit that can be detached from the terminal block. The electrode plate with its integrated fixing plate portion forms a complete assembly that can be removed together, allowing the light source module to be replaced by simply detaching this integrated unit, thus maintaining ease of repair while reducing overall device thickness.
Solution Approach 2:
The integrated electrode plate and fixing plate structure is designed with dynamic removability. The fixing plate portion can be engaged with or detached from the terminal block, allowing the light source module to be easily replaced. This dynamic design maintains the reduced thickness benefit while enabling simple replacement operations when needed.
Data Source
AI summary
Provided is a small-sized circuit board fixing structure capable of enabling a circuit board on a base to be easily replaced. A circuit board fixing structure configured to fix a circuit board onto a surface of a base includes a wire pattern formed on a surface of the circuit board, a first through hole penetrating from a front surface to a rear surface of the circuit board, a second through hole penetrating from a front surface to a rear surface of the base so as to communicate with the first through hole, an electrode penetratively inserted into the second through hole, and a fixing member engaged with the electrode mounted on the surface of the circuit board and configured to fix the circuit board to the base, in which when the fixing member and the electrode are engaged, the wire pattern and the electrode are electrically connected through the fixing member.