Infrared-Transmitting Glass Lid Sealing Without Positional Shift
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Solution Overview
Problem
The challenge is to join a lid body made of glass capable of transmitting infrared light with a frame body while ensuring excellent airtightness and preventing positional displacement of the lid body, which is difficult due to the poor adhesiveness of infrared light transmitting materials.
Innovation Solution
A composite is created by arranging a solder part and a metal particle bonding part between the lid body and the frame body, allowing them to be joined via these components. The metal particle bonding part reduces positional displacement caused by solder melting, and the solder part ensures high airtightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solder is used as a joining material to ensure airtightness, then airtightness is improved, but positional displacement of the lid body occurs during heating due to phase transition
Solution Approach 1:
The joining structure is divided into two distinct parts: a solder part for ensuring airtightness and a metal particle bonding part for preventing positional displacement. This segmentation allows each part to fulfill its specific function without compromising the other, resolving the contradiction between airtightness and positional stability during heating.
Solution Approach 2:
The solder part and metal particle bonding part are combined in a single joining structure between the lid body and frame body. The metal particle bonding part provides mechanical support and positional stability, while the solder part ensures airtightness, achieving both requirements simultaneously through merging.
2Illumination intensity
If glass is used as a lid body material for infrared light transmission, then infrared light transmission is improved, but adhesiveness to other substances deteriorates
Solution Approach 1:
The metal particle bonding part acts as an intermediary between the glass lid body and the frame body, providing a bonding interface that compensates for the poor adhesiveness of glass. This intermediary enables reliable joining while maintaining the infrared transmission properties of the glass lid body.
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 effectively imparts excellent airtightness to the space defined by the lid and frame bodies while preventing positional displacement of the lid body, making it suitable for applications requiring infrared light transmission.
Implementation Method 1
the composite has a solder part and a metal particle bonding part arranged between the lid body and the frame body, and wherein the lid body and the frame body are joined to each other via the solder part and the metal particle joining part
Implementation Method 2
when the solder part and the metal particle bonding part are arranged between the lid body and the frame body serving as targets to be joined, the influence of positional displacement caused by phase transition in association with melting of the solder part can be reduced by the metal particle bonding part
Data Source
AI summary
A composite includes a frame body (5) and a lid body (6) arranged on the frame body (5). The lid body (6) is formed of glass capable of transmitting infrared light (L). The composite has a solder part (9) and a metal particle bonding part (10) arranged between the lid body (6) and the frame body (5). The lid body (6) and the frame body (5) are joined to each other via the solder part (9) and the metal particle joining part (9).