Gas Filling Device Rain Gutter Drainage for Display Panel
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Solution Overview
Problem
Gas filling devices for hydrogen vehicles face issues with rainwater splashing onto the display panel when opened, potentially causing malfunctions in the filling amount indicator due to inadequate drainage, leading to defects and malfunctions.
Innovation Solution
A gas filling device design featuring a rain gutter above the filling amount indicator on the display panel, combined with a sealing mechanism that covers the gutter, and a hole at the lower end for water discharge, preventing water from reaching the indicator and ensuring effective drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double packing structure is provided at the joint between the upper case and display panel to prevent rainwater entry, then water resistance is improved, but rainwater can still splash onto the back of the display panel when opened causing the filling amount indicator to malfunction
Solution Approach 1:
A rain gutter is introduced as an intermediary component between the display panel and the potential source of rainwater. The gutter extends in the width direction of the display panel and is positioned to intercept rainwater before it can reach the filling amount indicator on the back of the display panel, thus protecting the indicator without compromising the opening/closing functionality of the display panel
Solution Approach 2:
The rain gutter is positioned in the depth direction (front-to-back) of the display panel assembly, creating a new spatial dimension for water drainage. By extending the gutter in the width direction and positioning it above the filling amount indicator, the design creates a three-dimensional water management system that protects the indicator from rainwater while maintaining access to the display panel
2Ease of repair
If the display panel is opened for maintenance and inspection, then accessibility for maintenance is improved, but rainwater accumulated on the upper case may splash onto the back of the display panel causing malfunctions
Solution Approach 1:
The rain gutter is pre-installed and positioned above the filling amount indicator before any maintenance activities. This preliminary protective structure is already in place to intercept rainwater, so when the display panel needs to be opened for maintenance, the filling amount indicator is already protected from potential rainwater splash, eliminating the need for additional protective measures during maintenance operations
3Reliability
If the sealing mechanism covers the upper part of the rain gutter to prevent water entry, then water resistance is improved, but the rain gutter needs to be designed to accommodate the sealing mechanism
Solution Approach 1:
The rain gutter is designed to serve multiple functions: it intercepts and drains rainwater from the front of the display panel, provides a mounting surface for the sealing mechanism, and maintains the structural integrity of the display panel assembly. By integrating these functions into a single component, the design avoids the need for separate protective structures, thereby reducing overall device complexity while maintaining effective water resistance
Data Source
AI summary
To provide a gas filling device with a drainage treatment for rainwater that splashes onto a display panel side when the display panel is opened or closed for maintenance and inspection. A gas filling device 100 according to the present invention in which a display panel 10 having a filling amount indicator 1 therein is laterally opened, the gas filling device 100 including: an intermediate unit 50 disposed in a housing body 101, the intermediate unit 50 combined with the display panel 10; a sealing mechanism disposed in a portion of the intermediate unit 50 that faces an upper edge of the display panel 10; a rain gutter 12 disposed above the filling amount indicator 1, the rain gutter 12 extending in a width direction of the display panel 10.