LED Floating Oil Pen with Pressure Sensor and Sealing Gaskets
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Solution Overview
Problem
Conventional oil-based pens lack engaging functionality, leading to reduced interest in writing and drawing among children, limiting their practicality.
Innovation Solution
A self-made LED luminous floating oil pen is created by filling an empty pen tube with mineral oil, gold powder, plastic balls, and PVC pattern pieces, equipped with LED lamp beads and a pressure sensor, allowing decorations to move and emit light when the pen is used, enhancing visual appeal and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional oil pens are used for writing and drawing, then the basic writing function is achieved, but children's interest and engagement are reduced due to limited functionality
Solution Approach 1:
The pen is transformed into a multi-functional device by integrating LED lighting, floating decorations, and pressure-sensitive interaction capabilities into the traditional writing pen structure, allowing it to serve both writing and entertainment functions simultaneously
Solution Approach 2:
Static pen components are replaced with dynamic elements including floating action figures that move when the pen is inverted, LED lights that illuminate on pressure, and decorations that drift in mineral oil, creating an engaging dynamic experience for children
2Ease of operation
If LED lamp beads and pressure sensors are added to create interactive lighting effects, then user engagement is improved, but device complexity increases
Solution Approach 1:
Multiple functional components (LED lamp beads, pressure sensors, floating decorations, mineral oil) are merged into a single integrated pen structure, where the pen tube serves as both the writing vessel and the container for the interactive liquid crystal display system
Solution Approach 2:
The pressure sensor automatically detects when the pen is pressed and triggers the LED lighting without requiring separate controls, and the floating decorations automatically move in response to pen orientation changes, eliminating the need for complex control mechanisms
3Adaptability or versatility
If mineral oil and floating decorations are placed in the pen tube to create visual appeal, then children's interest is increased, but ink leakage risk increases
Solution Approach 1:
The pen tube is nested within a sealed structure with gaskets and caps, creating multiple containment layers that protect the mineral oil and floating decorations from leaking while allowing the visual effects to be observed through the transparent pen tube
Solution Approach 2:
Flexible sealing gaskets and thin film barriers are used to create leak-proof seals around the mineral oil-containing chamber, allowing the liquid to move freely for visual effects while preventing leakage through the use of elastic sealing materials
4Reliability
If the pen structure is sealed with gaskets and caps to prevent leakage, then reliability is improved, but ease of manufacture decreases
Solution Approach 1:
The pen is divided into separate modular components (pen tube, cap, sealing gaskets, decoration chamber) that can be manufactured independently and assembled through simple screw-thread connections, making the sealing system easier to manufacture while maintaining reliability
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 pen's interactive features, including a floating action figure and light emission, increase user engagement and prevent ink leakage, while the anti-slip ring and sealing gasket improve usability and prevent finger wear, making the device more practical and fun for children.
Implementation Method 1
floating action-figure... when the pen is reversed, the floating action figure and other decorations will move, and the floating action figure will slowly rise
Implementation Method 2
Two sides of the inner cavity of the empty pen tube are provided with LED lamp beads distributed at equal distances
Implementation Method 3
the other end of the springs is equipped with a pressure sensor; the signal output end of the pressure sensor is connected with the signal input end of the processor through a signal line
Data Source
AI summary
Provided is a self-made LED luminous floating oil pen, including an empty pen tube. One end of the empty pen tube is threadedly connected to a plastic shell, and the inner cavity of the empty pen tube is filled with a mineral oil. Two sides of the inner cavity of the empty pen tube are provided with LED lamp beads distributed at equal intervals, and floating action figures are arranged in the inner cavity of the empty pen tube. Glitter and hollow plastic balls are filled in the inner cavity of the empty pen tube.