Method for improving safety performance of electric blanket

A safety performance, electric blanket technology, applied in the field of electric heating, can solve the problems of human health hazards, low control precision, lack of abnormal protection measures, etc., to avoid safety accidents, simple operation and control, and solve the hidden dangers of human electric shock

Inactive Publication Date: 2019-09-06
WUHAN SMARTDA ELECTRONICS TECH CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] ⑴Traditional electric blankets generally use high-voltage 220V heating wires for power supply and there are potential electric shock hazards in direct contact with the human body;
[0006] (2) The use of power frequency 50Hz alternating current will produce relatively large radiation (>200mGS), which will affect the secretion of human hormones, and...

Method used

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  • Method for improving safety performance of electric blanket
  • Method for improving safety performance of electric blanket

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as Figure 1-2 As shown, in the method for improving the safety performance of electric blankets described in Embodiment 1 of the present invention, the purpose of the implemented technical means is to solve the problem that the currently commonly used electric blankets have low safety performance on the human body and cannot achieve different temperature regulation. Requirement, therefore, possess the blanket body 1 of an electric heating blanket in the product design scheme that the present invention builds, adopt following steps to implement then:

[0040] First of all, in order to maintain the high stability of the power supply part, a DC isolated power supply 4 is used, and the output voltage is within the safe voltage range of the human body, and a safe low-voltage power supply of less than 36V can be implemented without radiation;

[0041] Then, the controller connected to the blanket 1 feeds back the temperature of the collected blanket 1 to the MCU operati...

Embodiment 2

[0047] Such as figure 1 As shown, Embodiment 2 of the present invention implements a method for improving the safety performance of electric blankets, which is a transformation based on Embodiment 1. It belongs to the same concept as Embodiment 1. The main technical means adopted are for temperature sensors. settings, as follows:

[0048] Inside the implemented blanket body 1 are evenly arranged snake-shaped nickel alloy heating components 2, and these nickel alloy heating components 2 preferably adopt the structure of nickel alloy low-voltage heating wires, and the implemented nickel alloy low-voltage heating wires are based on different laying methods Determined according to the density, at least two high-precision temperature sensors 8 are added to the back area of ​​the blanket body 1, at least one high-precision temperature sensor 8 is added to the waist area, and at least two high-precision temperature sensors 8 are added to the foot area. The three high-precision tempe...

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Abstract

The invention relates to a method for improving the safety performance of an electric blanket. The following steps are used: (1) a DC isolated power supply is used outside the blanket body so that theoutput voltage is lower than 36V without radiation; (2) a controller connected with the blanket body feeds back the temperature of the blanket body collected by multiple high-precision temperature sensors arranged in the blanket body to the MCU operation control unit of the controller for data analysis, temperature control of the heating wire is realized by using on/off of the MOS switch of a duty cycle control circuit module and the adjusting state is displayed through a controller liquid crystal screen; and (3) the Vref chip of the control circuit module of the MCU operation control unit realizes that the voltage rises from U1 to the safety voltage range of U2 within an instant. The DC isolated power supply is used so as to fundamentally solve the hidden danger of electric shock of thehuman body without radiation; the precision of temperature sampling can reach +/-0. 5 DEG C by temperature sampling sensors; and operation and control are simple and intelligentization can be realized.

Description

technical field [0001] The invention relates to the technical field of electric heating, in particular to a method for improving the safety performance of an electric heating blanket, which can fundamentally solve the hidden danger of human body electric shock caused by the electric heating blanket, and the output direct current does not have an alternating magnetic field. Background technique [0002] Electric blanket is an electric heating appliance. When in use, it is accompanied by the user for a long time and in close contact with the body. Obviously, this will cause some safety hazards, especially for some special users, such as pregnant women, children, the elderly, etc. Can't use the electric blanket with confidence. [0003] If on the basis of ensuring safety performance, the electric blanket can be used to maximize its advantages, for example, it has a good protective effect on people with rheumatism and can reduce the chance of seizures, and for the elderly or peo...

Claims

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Application Information

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IPC IPC(8): H05B1/02
CPCH05B1/0272
Inventor 刘永潮韩艳山
Owner WUHAN SMARTDA ELECTRONICS TECH CO LTD
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