Servo Light Guide for Motion State Identification
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Solution Overview
Problem
Conventional servos in robots are limited in structure and functionality, making it difficult to easily identify the motion state during operation.
Innovation Solution
A servo design that includes a servo casing, servo cover, circuit board, light emitting member, and light guide, where the light emitting member emits light according to motion state signals, and the light guide directs the light to an external surface for easy identification, using LEDs of different colors to indicate various motion states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If conventional servo structure is used, then the servo can perform basic rotation function, but the motion state cannot be easily identified
Solution Approach 1:
The patent uses different colored LEDs (red, yellow, green, blue) to indicate different motion states of the servo. The light guide transmits these colored lights to the external surface, allowing easy visual identification of motion states without adding complex sensing or communication interfaces.
Solution Approach 2:
The light guide acts as an intermediary component that transmits light from the light emitting member inside the servo to the external surface. This mediator enables the motion state information to be visually communicated outward without requiring direct observation of internal components.
2Loss of information
If light emitting member is added to indicate motion state, then identification is improved, but device complexity increases
Solution Approach 1:
The light guide serves multiple functions: it transmits light from the LED to the external surface, defines the light exit pattern, and integrates into the existing servo cover structure. This multi-functionality reduces the need for separate components for each function.
Solution Approach 2:
The light guide is integrated with the servo cover, combining the light transmission function with the existing structural component. The circuit board also integrates the LED mounting, wiring, and control functions in one location, reducing overall system complexity.
3Illumination intensity
If light is emitted internally, then motion state can be indicated, but light directionality and visibility are poor
Solution Approach 1:
The light guide has different properties at different locations: the light incident surface is positioned to receive light from the LED, the light transmission path is optimized for light propagation, and the light exit surface is positioned and shaped to provide directional light output. This local differentiation optimizes light visibility without requiring complex optical systems.
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
Enables clear and visually appealing identification of the motion state of the servo, enhancing the appearance and usability of the robot by directing light in a specific direction through the light guide, facilitating easier operation and maintenance.
Implementation Method 1
The light emitting member is arranged on the circuit board and electrically coupled to the circuit board. The light emitting member is capable of emitting light according to signals indicative of a motion state from the circuit board.
Implementation Method 2
The light guide includes a light incident surface that is located adjacent to the light emitting member, and a light exit surface that is exposed to an external surface of the servo cover.
Data Source
AI summary
A servo includes a servo casing, a servo cover connected to the servo casing, a circuit board, a light emitting member, and a light guide. The servo cover and the servo casing defines a receiving space. The circuit board is received in the receiving space. The light emitting member is arranged on the circuit board and electrically coupled to the circuit board. The light emitting member is capable of emitting light according to signals indicative of a motion state from the circuit board. The light guide includes a light incident surface that is located adjacent to the light emitting member, and a light exit surface that is exposed to an external surface of the servo cover.