Instant hand-held bed sheet warmer
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Solution Overview
Problem
Existing bed warming products, such as electric blankets and heated mattress pads, pose safety hazards and health risks due to potential short circuits and electromagnetic fields, and are often noisy and non-portable, while hand-held devices require assembly and lack efficient design.
Innovation Solution
A portable hand-held device with a ceramic heating coil and centrifugal fan that quickly warms bed sheets using forced convection, featuring a spring release switch, dual wattage protection, and a self-contained warm air distribution rod for safe and efficient heating without assembly, reducing noise and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If electric blankets or heated mattress pads are used to warm bed sheets, then the bedding can be warmed effectively, but safety hazards arise from potential short circuits and fire risks
Solution Approach 1:
The heating element is extracted from the bedding itself and placed in a separate handheld device. The device contains a ceramic heating coil that generates heat, which is then transferred to the bedding through direct contact of the distribution rod with the bed sheets, eliminating the safety hazards of embedded heating wires in electric blankets
Solution Approach 2:
A ceramic heating coil serves as an intermediary between the electrical power source and the bedding. The ceramic material provides safe, controlled heating without the risks of traditional resistive heating elements, and the heat is transferred through the distribution rod that contacts the bedding surface
2Temperature
If electric blankets or heated mattress pads are used, then bedding can be warmed, but electromagnetic fields pose health risks to users
Solution Approach 1:
The heating function is extracted from continuous operation devices and placed in a handheld device that is used only briefly before bedtime. This eliminates prolonged electromagnetic field exposure while still achieving the goal of warming bedding
Solution Approach 2:
The heating is applied periodically rather than continuously - the device is used for a few minutes before sleeping to warm the bedding, then turned off. This periodic application achieves the thermal effect without continuous electromagnetic field exposure
3Temperature
If stationary hot air devices are used throughout the night, then bedding can be kept warm, but noise disturbs sleep
Solution Approach 1:
The device operates periodically rather than continuously - it is used for 5-10 minutes before bedtime to warm the bedding, then turned off. This eliminates nighttime noise while achieving the warming effect during the brief pre-sleep period
Solution Approach 2:
The heating action is performed in advance before sleeping - the bedding is warmed during the pre-sleep routine, eliminating the need for continuous operation throughout the night and thereby eliminating continuous noise
4Temperature
If stationary hot air devices are used, then bedding can be warmed, but the devices lack portability for use on multiple beds
Solution Approach 1:
The device transitions from stationary to dynamic use - it is designed as a handheld portable device that can be moved and used on multiple beds throughout the house, providing adaptability and versatility while maintaining the heating function
5Adaptability or versatility
If hand-held warming devices with removable attachments are used, then the device can be disassembled, but assembly delays immediate use
Solution Approach 1:
The heating elements, fan, and distribution rod are merged into a single integrated handheld unit that requires no assembly. The ceramic heating coil, centrifugal fan, and distribution rod are permanently assembled during manufacturing, eliminating assembly time while maintaining the handheld portable design
Solution Approach 2:
The device is designed to be ready for immediate use upon unboxing, with all components pre-assembled and integrated. The user simply needs to plug it in and use it, eliminating the need for assembly or configuration
6Quantity of substance
If conventional fans are used for air circulation, then air flow can be provided, but noise levels are high and disturb sleep
Solution Approach 1:
The conventional axial fan is replaced with a centrifugal fan design that moves air more efficiently at lower speeds, reducing noise while maintaining adequate air flow for heating the bedding
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 device provides quick, safe, and efficient warming of bed sheets, reducing discomfort, energy costs, and health risks, while being portable and free from noise and fire hazards, offering health benefits and cost savings through reduced energy usage.
Implementation Method 1
A ceramic heating coil and centrifugal fan within the insulated handle assembly, hot air is forced through a perforated rod
Implementation Method 2
Utilizing a ceramic heating coil and centrifugal fan within the insulated handle assembly, hot air is forced through a perforated rod which, in a continuous motion, is swept between bed sheets
Implementation Method 3
a handle configured in between the air intake and the fan and heating coil assembly and comprising a hollow cavity formed therein to allow the air to pass through the handle from the air intake to the fan and heating coil assembly
Implementation Method 4
a warm air distributor rod configured to receive the warmed air and comprising a plurality of outlet vents configured to distribute the warm aired to the bedding
Data Source
AI summary
A hand-held bed sheet warmer device is provided for heating bedding, including an air intake configured to intake air, a fan and heating coil assembly to receive and heat the air to provide warm air, a handle configured in between the air intake and the fan and heating coil assembly and having a hollow cavity formed therein to allow the air to pass through the handle from the air intake to the fan and heating coil assembly, and a warm air distributor rod configured to receive the warm air and comprising a plurality of outlet vents configured to distribute the warm air to the bedding. The air intake, the fan and heating coil assembly, the handle and the warm air distributor are arranged linearly and the device is configured as a hand-held baton or shaft.