Earphone Charging Case Light Guide Using the Earbud Light Source
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Solution Overview
Problem
Existing earphone charging cases with light-emitting diodes (LEDs) have complex structures and high costs, hindering miniaturization and lightweight design.
Innovation Solution
A light guide structure where the earphone's light source transmits light to a shell light guide element embedded within the charging case, eliminating the need for an additional light source and utilizing inner and outer light guide elements for efficient light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an LED light source with condensing module and light guide element is designed on the charging case shell, then the charging case can emit light, but the structure becomes complex and costs increase
Solution Approach 1:
The light source is extracted from the charging case and relocated to the earphone unit. The charging case shell retains only the light guide element, which transmits light from the earphone to illuminate the shell. This separation eliminates the need for a condensing module and additional light guide elements in the charging case, significantly simplifying its structure while preserving light emission capability.
Solution Approach 2:
The earphone's light source serves dual purposes: it illuminates the earphone itself and simultaneously provides light for the charging case shell through the light guide element. This multi-functional use of the light source eliminates redundant components and reduces overall system complexity.
2Illumination intensity
If an LED light source with condensing module and light guide element is designed on the charging case shell, then the charging case can emit light, but manufacturing costs increase
Solution Approach 1:
By extracting the light source from the charging case and placing it in the earphone, the patent eliminates the need to manufacture and assemble additional light-emitting components in the charging case. This reduces part count, simplifies assembly processes, and lowers manufacturing costs while maintaining the light emission function.
Solution Approach 2:
The patent merges the lighting function of the earphone and charging case into a single light source system. The earphone's light source serves both units, reducing total component count and manufacturing complexity.
3Illumination intensity
If additional light sources and light guide elements are added to the charging case, then light emission is achieved, but the charging case size increases
Solution Approach 1:
The light source is extracted from the charging case and relocated to the earphone, removing the need for additional space-holding components such as the condensing module and separate light guide elements in the charging case. This significantly reduces the charging case volume while preserving light emission capability through the remaining light guide element.
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 reduces costs, minimizes the charging case size, and achieves lightweight design while maintaining effective light emission without additional light sources.
Implementation Method 1
the light source is capable of transmitting light to the shell light guide element when emitting light
Implementation Method 2
the light generated by the light source is refracted by 90° and is emitted from an exit end of the earphone light guide element
Implementation Method 3
a shell of the charging case is provided with a shell light guide element, and the shell light guide element penetrates the shell
Data Source
AI summary
The present utility model belongs to the technical field of charging cases, and discloses a light guide structure of an earphone charging case, including a charging case and earphones. A shell of the charging case is provided with a shell light guide element, and the element penetrates the shell. The earphone is provided with a light source. When the earphone is placed in the charging case, light generated by the earphone light source can be transmitted to the shell light guide element, making the guide element emits light. The light guide structure of the earphone charging case use the light source of the earphone directly through optical simulation so as to realize secondary light guide, so that the shell of the charging case emits light, no additional light source is required, costs are reduced, the size of charging case can be effectively reduced, and miniaturization and lightweight can be realized.