LED Light Guidance Ducts Prevent Leakage in Electronic Housing
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Solution Overview
Problem
Existing electronic apparatuses with LED light emitting parts face challenges in preventing light leakage and achieving effective lighting designs due to limitations in light guidance and protection mechanisms.
Innovation Solution
The implementation of a housing structure with duct-shaped members and a reinforcing plate that allows light to pass through while preventing leakage, including a transparent portion, printed circuit board, and light sources, along with a configuration that reduces component count and enhances design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light emitting part employing an LED is provided in an electronic apparatus, then the lighting function is improved, but light leakage occurs and structural protection is compromised
Solution Approach 1:
The light guidance structure is divided into multiple duct-shaped members (first duct-shaped member and second duct-shaped member) that work together to guide light from the LED to the transparent portion. Each duct-shaped member has specific opening portions that segment the light path, allowing precise control of light direction while preventing leakage to unintended areas.
Solution Approach 2:
The duct-shaped members act as intermediary structures between the LED light source and the transparent portion. These intermediaries guide and control the light path, ensuring light reaches the intended area while preventing leakage. The reinforcing plate also serves as an intermediary that protects the printed circuit board from pressure while allowing light transmission.
2Object-affected harmful factors
If light guidance structures are added to prevent light leakage, then light control is improved, but device complexity increases
Solution Approach 1:
The duct-shaped members serve multiple functions simultaneously: they guide light from the LED to the transparent portion, prevent light leakage to unintended areas, and provide structural support. The reinforcing plate also performs dual functions of protecting the printed circuit board from pressure and allowing light transmission. This multi-functionality reduces the need for separate components, thereby reducing overall device complexity.
Solution Approach 2:
The patent combines the light guidance function and structural support function into integrated components. The duct-shaped members merge light guidance with structural protection, and the reinforcing plate combines pressure protection with light transmission. This merging of functions reduces the total number of components and simplifies the overall structure.
3Reliability
If protective structures are added to prevent pressure transfer to the printed circuit board, then reliability is improved, but device complexity increases
Solution Approach 1:
The reinforcing plate serves multiple functions: it protects the printed circuit board from pressure transfer, allows light transmission from the LED to the transparent portion, and provides structural support for the housing. This multi-functionality achieves reliable pressure protection without adding excessive complexity, as the same component performs multiple protective and functional roles.
4Object-affected harmful factors
If traditional light blocking methods are used, then light leakage is prevented, but design flexibility and lighting effect are reduced
Solution Approach 1:
Instead of using uniform light blocking throughout the housing, the patent applies light guidance structures (duct-shaped members) only in specific locations where light needs to be directed to the transparent portion. The opening portions of these duct-shaped members are strategically positioned to allow light transmission only where needed, while blocking light in other areas. This localized approach provides effective light leakage prevention while maintaining design flexibility for different lighting configurations.
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 configuration effectively directs light to the intended area, reduces light leakage, and enhances the structural integrity of the electronic apparatus by preventing pressure transfer to the printed circuit board, thus improving the lighting effect and durability.
Implementation Method 1
a light source provided on the printed circuit board; a first member includes: a first opening portion configured to allow light emitted from the light source to the transparent portion to pass therethrough
Data Source
AI summary
According to one embodiment, an electronic apparatus includes a housing including a transparent portion, a printed circuit board contained in the housing, a light source provided on the printed circuit board, a first member, a second member, and a reinforcing plate. The first member includes a first opening portion configured to allow light emitted from the light source to the transparent portion to pass therethrough, and a duct-shaped first main body defining the periphery of the first opening portion. The second member includes a second opening portion configured to allow light emitted from the light source to the transparent portion to pass therethrough, and a duct-shaped second main body defining the periphery of the second opening portion, and brought into contact with the first member so that the first opening portion communicates with the second opening portion.