Integrated Push Button Illumination Structure for Light Leakage Control
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Solution Overview
Problem
Existing push button illumination structures for vehicle-mounted apparatuses face challenges such as increased part count and manufacturing complexity, leading to higher costs and potential quality issues due to light leakage and uneven illumination.
Innovation Solution
A push button illumination structure featuring a light emitting base part with optical transparency, a button body part molded as one body with the light emitting base part, and a frame-shaped light shielding wall part that reflects light emitted from a source inside the light shielding wall part, directing it to illuminate the button body part effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light shielding tape is applied to prevent light leakage, then light leakage is prevented, but the number of parts increases and manufacturing complexity increases
Solution Approach 1:
The light shielding function is merged with the button body part by forming the light shielding wall part as an integrated structure. The light shielding wall part is molded as one body with the light emitting base part and button body part, eliminating the need for separate light shielding tape components while maintaining the light leakage prevention function
Solution Approach 2:
The light shielding function is extracted from the separate light shielding tape and integrated into the button body part structure itself. The light shielding wall part is formed as a protruding frame-shaped structure on the back side of the light emitting base part, creating a self-contained light shielding mechanism within the button assembly
2Object-affected harmful factors
If a light shielding tape is applied to prevent light leakage, then light leakage is prevented, but manufacturing cost increases and productivity decreases
Solution Approach 1:
The light shielding function is merged with the button body part by forming the light shielding wall part as an integrated structure. The light shielding wall part is molded as one body with the light emitting base part and button body part, eliminating the need for separate light shielding tape components while maintaining the light leakage prevention function
Solution Approach 2:
The button body part is designed to serve multiple functions simultaneously: it provides the button structure, houses the light emitting base part, and includes the light shielding wall part for preventing light leakage. This multi-functional design eliminates the need for separate light shielding components and simplifies the manufacturing process
3Object-affected harmful factors
If a light shielding tape is applied, then light leakage is prevented, but position shifts cause uneven illumination and quality deteriorates
Solution Approach 1:
The light shielding function is merged with the button body part by forming the light shielding wall part as an integrated structure. The light shielding wall part is molded as one body with the light emitting base part and button body part, eliminating the need for separate light shielding tape components while maintaining the light leakage prevention function
Solution Approach 2:
The light shielding wall part is pre-formed as an integrated structure with the button body part during the molding process. This preliminary formation ensures precise positioning and eliminates the need for subsequent assembly steps where position shifts could occur, guaranteeing uniform illumination
4Object-affected harmful factors
If additional light shielding components are added, then light leakage is prevented, but device complexity and part count increase
Solution Approach 1:
The light shielding function is merged with the button body part by forming the light shielding wall part as an integrated structure. The light shielding wall part is molded as one body with the light emitting base part and button body part, eliminating the need for separate light shielding tape components while maintaining the light leakage prevention function
Solution Approach 2:
The button body part serves itself by incorporating the light shielding wall part as an integrated structure. The light shielding function is provided by the button body part itself rather than requiring external light shielding components, simplifying the overall device structure
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 eliminates the need for additional light shielding components, simplifies manufacturing, reduces costs, and maintains high-quality illumination by ensuring even light distribution and minimizing light leakage.
Implementation Method 1
The push button illumination structure is configured to cause light emitted from a light source arranged inside with respect to the light shielding wall part in the plan view to be reflected by an inner surface of the light shielding wall part
Data Source
AI summary
A push button illumination structure includes a light emitting base part having transparency, and a button body part configured to be molded as one body with the light emitting base part. The button body part includes: a fixed leg part configured to elastically support the light emitting base part; a push-in column configured to apply pressure to a switch; and a light shielding wall part configured to protrude on a back side of the light emitting base part, and having a frame shape. The light shielding wall part is formed at a position corresponding to an outer shape of the light emitting base part in a plan view. The push button illumination structure is configured to cause light emitted from a light source arranged inside with respect to the light shielding wall part in the plan view to be reflected by an inner surface of the light shielding wall part.