Motorized Reel for String Lights with Prism Spool
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Solution Overview
Problem
Existing motorized reels for string lights lack efficient mechanisms for deploying and retracting light strings, often resulting in tangling and manual labor for storage and decoration.
Innovation Solution
A motorized reel with a spool structure featuring a prism-shaped core, disk-shaped flanges, and tubular handles, powered by an independent control circuit that includes a motor circuit, switches, load resistors, and batteries, allowing for automated deployment and retraction of light strings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a motorized reel is used to deploy and retract light strings, then manual labor is reduced and convenience is enhanced, but the device complexity increases due to the need for motor circuits, control circuits, and additional mechanical components
Solution Approach 1:
The patent combines the motor circuit, control circuit, power source (batteries), and spool structure into a single integrated reel assembly. The control circuit is mounted directly on the spool structure, and the motor is coupled to the spool, creating a unified device that reduces the number of separate components and simplifies operation while maintaining motorized functionality
Solution Approach 2:
The reel assembly serves multiple functions: it stores the light string on the spool, provides motorized deployment through the motor circuit, enables controlled retraction via the control circuit, and powers all operations through integrated batteries. This multi-functionality reduces the need for separate manual operations and external power sources
2Extent of automation
If an independent control circuit with motor circuit, switches, load resistors, and batteries is integrated into the spool structure, then automated deployment and retraction are achieved, but the weight of the moving object increases
Solution Approach 1:
The reel assembly is self-powered through integrated batteries that provide electrical energy to the motor circuit and control circuit. The device can autonomously deploy and retract the light string without requiring external power sources or manual intervention, making the added weight of the power system necessary for achieving self-service functionality
3Productivity
If the spool structure rotates to deploy and retract the light string, then the light string can be efficiently stored and deployed, but tangling may occur during rotation
Solution Approach 1:
The control circuit is configured to control the motor circuit in a specific sequence: first rotating the spool in the first direction to deploy the light string, and only after deployment is complete, rotating in the second direction to retract it. This preliminary planning of the rotation sequence prevents tangling by ensuring the light string is fully deployed before retraction begins
Solution Approach 2:
The spool structure is designed to rotate dynamically in both first and second directions under control of the motor circuit. The ability to change rotation direction allows the system to adapt to different operational phases (deployment vs. retraction) and prevents tangling by maintaining proper tension and orientation of the light string throughout the rotation cycle
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 motorized reel efficiently deploys and retracts light strings with minimal tangling, reducing manual effort and enhancing convenience for decoration and storage.
Implementation Method 1
The motor circuit includes a motor. The motor converts electrical energy from the batteries into rotational mechanical energy to rotate the spool structure, thereby deploying and retracting the light string
Data Source
AI summary
The motorized reel for string lights is a device used in decorating or storage, and which is configured for use with a light string. The motorized reel for string lights rolls on or unrolls a light string. The motorized reel for string lights deploys the light string for use. The motorized reel for string lights retracts the light string for storage. The motorized reel for string lights is an electrically powered device. By electrically powered device is meant that the motorized reel for string lights provides the motive force required to: a) retract the light string for storage; and, b) deploy the light string for use in decorating.