Planar Light Emitting Panel Heat Management via Smooth Contact
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Solution Overview
Problem
Planar light emitting panels used for illuminating food items or cultural assets generate heat during prolonged use, leading to drying and deterioration, necessitating a solution to suppress heat generation.
Innovation Solution
An illumination apparatus featuring a planar light emitting panel mounted on a heat-radiating mounting member with a smooth body plate-section and a heat transfer member, where the connecting wiring section extends through a through hole, allowing for efficient heat dissipation and minimizing heat transfer to the panel body, and the mounting-side and panel-side smooth regions ensure surface contact for effective heat release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a planar light emitting panel is used for illumination, then the illumination area is expanded and heat generation per unit area is reduced, but heat accumulates during prolonged use causing drying and deterioration of illuminated items
Solution Approach 1:
The patent extracts the heat management function from the illumination system by introducing a dedicated heat-radiating mounting member. This member includes a heat-radiating fin structure that separates heat dissipation from light emission, allowing the planar light emitting panel to maintain its wide illumination area while the mounting member handles heat removal independently.
Solution Approach 2:
The heat-radiating mounting member acts as an intermediary between the planar light emitting panel and the mounting surface. It receives heat from the panel through thermal conduction and dissipates it to the surrounding air through convection and radiation via the fin structure, preventing heat accumulation that would otherwise damage illuminated items.
2Device complexity
If the connecting wiring section passes through the body plate-section, then the device structure is simplified and compactness is improved, but heat transfer from the wiring to the panel body may increase
Solution Approach 1:
The patent applies local quality by creating a smooth region on the body plate-section where the connecting wiring passes through. This local modification ensures that the wiring makes good thermal contact with the heat-radiating mounting member in a specific area, facilitating heat dissipation from the wiring without requiring complex overall structural changes.
3Temperature
If the mounting-side smooth region and panel-side smooth region ensure extensive surface contact, then heat transfer efficiency is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent ensures that the smooth regions provide sufficient surface contact area for effective heat transfer, which may exceed the minimum theoretical requirement. This excessive action approach compensates for potential variations in manufacturing precision, guaranteeing adequate thermal contact without requiring extremely tight tolerances.
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 effectively suppresses heat generation and temperature rise on the light emitting surface of the planar light emitting panel, preventing deterioration of illuminated items and allowing for a thinner, more compact illumination apparatus design.
Implementation Method 1
a heat transfer member (16), wherein the connecting wiring section is configured to electrically connect the panel body to an external power source, the connecting wiring section traveling from a panel-body side of the body plate-section to an opposite side of the body plate-section through the first through hole
Implementation Method 2
a heat-radiating mounting member having a body plate-section
Implementation Method 3
a heat-radiating mounting member having a body plate-section
Data Source
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AI summary
The present invention provides an illumination apparatus that can suppress heat generation during lighting. The illumination apparatus includes a planar light emitting panel and a heat-radiating mounting member. The heat-radiating mounting member is configured to mount the planar light emitting panel on a mounted section, and has a body plate-section. The body plate-section has a through hole for feeding power that penetrates the body plate-section in a thickness direction, and a mounting-side smooth region that does not substantially include a protrusion. The planar light emitting panel has a panel body and a connecting wiring section. The connecting wiring section is configured to electrically connect the panel body to an external power source, and extends from a panel-body side of the body plate-section to an opposite side of the body plate-section through the through hole for feeding power. The planar light emitting panel has a front surface configured of a light emitting surface including a light emitting region that emits light during lighting, and a back surface on which a panel-side smooth region that does not substantially include a protrusion is provided. The mounting-side smooth region and the panel-side smooth region are in surface contact with each other in area of not less than 50 percent of area of the light emitting region in plan view of the light emitting surface.