Flame Sensor Socket Sealing Member Design
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Solution Overview
Problem
Conventional sealing structures for electronic devices, such as flame sensors, suffer from poor productivity and reliability due to the use of liquid or gel potting agents, which require hardening time, can produce bubbles, and are prone to airtightness issues caused by temperature fluctuations.
Innovation Solution
An electronic device holding socket with a cylindrical case, a conducting portion, and a sealing member formed from an elastic material that adheres to the case, eliminating the need for hardening time and preventing air layer formation, using a retaining member and stopper to ensure reliable sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid or gel potting agent or adhesive agent is used to seal the electrode terminal side, then sealing performance is improved, but productivity deteriorates due to hardening time requirement
Solution Approach 1:
The patent extracts the sealing function from the potting agent/adhesive agent and implements it through a dedicated sealing member (packing) made of elastic material. This sealing member is inserted into a sealing groove and pressed by a pressing member to create the seal, completely eliminating the need for hardening time while maintaining reliable sealing performance.
Solution Approach 2:
The patent replaces the chemical bonding mechanism of potting agents and adhesive agents with a mechanical sealing system. The sealing member is held in place by a pressing member that applies mechanical force, eliminating the need for chemical hardening processes and significantly improving productivity.
2Reliability
If liquid or gel potting agent or adhesive agent is used to seal the electrode terminal side, then sealing performance is improved, but air bubbles are produced reducing airtightness
Solution Approach 1:
The patent uses a sealing member made of elastic material that can be compressed and deformed to fit around the electrode terminals. This flexible sealing member creates a reliable seal without trapping air bubbles, as it can be properly positioned and compressed to eliminate voids, unlike rigid or viscous potting agents.
3Reliability
If liquid or gel potting agent or adhesive agent is used to seal the electrode terminal side, then sealing performance is improved, but airtightness deteriorates due to peeling from temperature fluctuations
Solution Approach 1:
The patent changes the material parameter from temperature-sensitive adhesive agents to temperature-resistant elastic material. The sealing member maintains its elastic properties across a wide temperature range, preventing the peeling and degradation that occurs with conventional adhesive agents under temperature fluctuations.
Solution Approach 2:
The sealing system uses a composite structure combining the sealing member made of elastic material with the pressing member that applies mechanical force. This composite approach creates a stable, temperature-resistant sealing system that maintains airtightness under varying thermal conditions.
4Reliability
If vacuum degassing is applied to prevent bubbles in filling agent, then airtightness is improved, but manufacturing cost increases
Solution Approach 1:
The patent extracts the sealing function from the filling agent process entirely and replaces it with a pre-formed sealing member. This eliminates the need for vacuum degassing equipment and processes, reducing manufacturing cost and complexity while maintaining or improving airtightness.
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
The solution enhances productivity and maintains reliable sealing performance over time by eliminating the need for waiting periods and temperature-related issues, ensuring airtightness without bubble formation.
Implementation Method 1
a seal portion between the dividing wall and the conducting portion, and a bearing portion that extends from the seal portion between the dividing wall and the retaining member; and the bearing portion is pressed by the retaining member to press against the dividing wall
Data Source
AI summary
A case is provided for holding an ultraviolet detecting device in a state wherein an electrode-side terminal portion of the ultraviolet detecting device is inserted into one end portion. A conducting portion is provided connected on one end to an electrode terminal portion of the ultraviolet detecting device with the other end led out from the other end portion of the case. A sealing member is provided attached removably to the case. The sealing member seals airtight between the inside and the outside of the case in a state wherein a cable of the conducting portion passes therethrough.