Spring oscillation electromagnetic cradle
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Solution Overview
Problem
Conventional motorized cradles for babies produce uneven and costly swaying motions due to complex linkages, wasting energy and increasing fabrication costs.
Innovation Solution
An electromagnetic cradle utilizing a support frame, fixed and movable units, and an electromagnetic device with springs to create a smooth rocking motion through magnetic reactions and elastic oscillations, simplifying the structure and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a motor-driven linkage system is used to produce swaying motion, then the cradle can be automated, but the structure becomes complex and the swaying action is not smooth
Solution Approach 1:
The patent replaces the motor-driven mechanical linkage system with an electromagnetic oscillation system. The electromagnetic device generates oscillating motion through electromagnetic forces acting on a magnetic component, eliminating the need for complex mechanical linkages while achieving automated swaying motion. This substitution reduces structural complexity while maintaining automation.
Solution Approach 2:
The patent utilizes electromagnetic vibration to produce the swaying motion. The electromagnetic device creates oscillating forces that directly vibrate the cradle structure, producing smooth swaying motion without mechanical linkages. This vibration-based approach simplifies the system while achieving the desired automated motion.
2Extent of automation
If a motor-driven linkage system is used, then automation is achieved, but the fabrication cost increases
Solution Approach 1:
By replacing the motor-driven mechanical linkage with an electromagnetic oscillation system, the patent reduces the number of mechanical parts that require precision manufacturing and assembly. The electromagnetic device has fewer moving parts and simpler construction, leading to lower fabrication costs while maintaining automation capability.
3Device complexity
If manual operation is used, then the structure is simple, but the watcher's energy and time are wasted
Solution Approach 1:
The patent implements automation through an electromagnetic oscillation system that requires minimal manual intervention. Once activated, the system autonomously produces swaying motion, freeing the watcher from continuous manual operation while maintaining structural simplicity through the elimination of complex mechanical linkages.
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 electromagnetic cradle achieves a smooth and elastic rocking effect, effectively pacifying babies while reducing fabrication costs and simplifying maintenance.
Implementation Method 1
The movable unit achieves a rocking or shaking effect by the magnetic reaction between the electromagnetic device and the at least one magnet
Implementation Method 2
by the oscillating elasticity of the springs, so that the movable unit is moved smoothly and elastically
Data Source
AI summary
An electromagnetic cradle includes a support frame, a fixed unit mounted on the support frame, a movable unit mounted on the fixed unit, and an electromagnetic device secured on the support frame. The fixed unit includes two fixed rods secured on the support frame. Each of the fixed rods is provided with two mounting sleeves each of which is provided with a fixed tube. The movable unit includes a bed and two movable blocks. Each of the movable blocks is provided with two tracks, and the fixed rods extend through the tracks of each of the movable blocks. At least one spring is biased between each of the tracks and the respective fixed tube. At least one magnet is mounted is mounted on one of the movable blocks.