CN201286546Y

CN201286546Y - Green environmental-protection electric blanket

Info

Publication number: CN201286546Y
Application number: CNU2008200534530U
Authority: CN
Inventors: 吴佑茂
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-09
Filing date: 2008-06-09
Publication date: 2009-08-12
Anticipated expiration: 2018-06-09

Abstract

The utility model discloses an environmental protection electric blanket without electromagnetic radiation. A traditional electric blanket has invisible electromagnetic radiation, so that the damage to the health of people is caused. The environmental protection electric blanket of the utility model is characterized in that a heating wire has an inner layer circuit and an outer layer circuit; a thermosensitive insulating layer is arranged between the two layers of circuits; the inner layer is a resistance wire coil winding round an insulating core wire; the outer layer of circuit is a conductive coil, an insulating layer is arranged at the periphery of the conductive coil, and a shielding layer arranged outside the conductive coil is grounded; the circle radius of the inner resistance wire coil is smaller than that of the outer conductive coil; the number of turns of the inner resistance wire coil is more than that of the outer conductive coil; the initiating terminal of the inner resistance wire coil is connected in series with a fuse, and connected with a power phase indicator lamp; when the electric blanket is powered on, the out layer of conductive coil is connected with a zero line, the directions of the currents in the inner and outer circuits are opposite, instantaneous values thereof are equal, and the magnetic flux generated is equal in value and opposite in direction, and cancel each other out, so that no electromagnetic radiation is generated. If exists, certain survival electromagnetic radiation can be absorbed by the shielding layer in the outer layer, therefore, the electric blanket becomes environmental friendly.

Description

The environmental protection electric blanket

Affiliated technical field

The utility model relates to a kind of environmental protection electric blanket of electromagnetic-radiation-free.

Technical background:

Electrification is the civilization in epoch, promote the well-being of mankind, but it also has disadvantageous one side.Electrification is lived in the environment of electromagnetic radiation people, and the electromagnetic radiation of low dosage is good for one's health.Magnetic induction intensity surpasses the electromagnetic radiation of 0.2 emblem tesla.Impair the health of human body.Under general situation, the people is as long as outside half meter of electrical appliance, and electromagnetic radiation has not just impaired one's health.Human body is close in the use of electric blanket, and the time is long again, to the infringement maximum of health.

The unhealthful research of electromagnetic radiation of anti-electric blanket is a lot.As the patent No. be: 200610067716.9; 962055301; 92101866.6:95232384.2; 97248218.0; 92202740.4; 91222429.0; 95206283.6 patented technology.Above patented technology is not all resolved the unhealthful problem of electric blanket electromagnetic radiation.200610067716.9 patent be the patent of invention of new application, still unauthorized.This patented technology scheme, write like this in his application documents " specification digest ": the heating line of electric blanket is the bilayer of isolating with the temperature-sensitive insulating barrier, coaxial, same rotation direction, be resistive conductor with the fish line conductor and the outer electric insulation layer formation internal layer of pitch, and skin is a good conductor.The interior outer conductor of heating line one end is electrically connected.The interior resistive conductor of the other end connects phase line of power, and outer conductor connects the zero line of power supply.During energising, dual-layer metal line respectively produces a row equal and opposite in direction, the electromagnetic wave that direction is opposite, and two train waves are cancelled out each other, so electromagnetic-radiation-free.This saying is wrong on principle.Can there be electromagnetic radiation.Because there is thicker temperature-sensitive insulating barrier to be separated by between internal layer spirality resistance line and the outer fish line conductor, outer fish line conductor circle circle radius is big, and the circle radius of internal layer spirality resistance coil is little, equal turn numbers, the instantaneous value of interior extrinsic current is identical, and direction is opposite, and magnetic flux is directly proportional with area.The magnetic flux that exterior loop produces is big, and the magnetic flux that interior layer line produces is little, and the electromagnetic field of formation can not be offset entirely.

Content of the present utility model:

The purpose of this utility model provides a kind of unhealthful environmental protection electric blanket of electromagnetic radiation that do not have.

To achieve these goals, the utility model, the environmental protection electric blanket is the heating line, embeds in the interlayer that fills up blanket to form, and the heating resistor line is inside and outside two-layer coil, and the heating line has screen fraud layer ground connection outward, also is connected with power phase indicator lamp and fuse on the heating line.

The heating line of above-mentioned environmental protection electric blanket has inside and outside two-tier circuit, and internal layer circuit is the resistive conductor coil, is the parts that produce heat, and outer circuit is a lead loop, does not produce heat, has the temperature-sensitive insulating barrier isolated between the inside and outside two-tier circuit.

Above-mentioned environmental protection electric blanket, an end of the ectonexine circuit of heating line is electrically connected, and the other end connects power supply in terminal box.

Above-mentioned environmental protection electric blanket, heating line internal layer resistance coil circle radius is less than the circle radius of outer loop, the internal layer resistance coil number of turn is suitably more than the number of turn of outer lead loop, like this under the situation that electric current equates by force, the ectonexine coil, the magnetic flux that energising produces just may equate, because φ=BS.φ represents magnetic flux in the examination, and B represents magnetic induction, and S represents the area of coil.

Above-mentioned environmental protection electric blanket, the power phase indicator lamp is that a neon tube, high value resistor of series connection are connected across, between the interior resistive conductor top of heating line and the screen fraud layer.Use electric blanket, when connecing power supply, if interior resistance coil is connected on the phase line, indicator lamp is luminous, if interior resistance coil connects on the zero line of power supply, indicator lamp is not luminous, at this moment the current potential of outer conductor circle equals phase voltage, does not play the effect of screen fraud, just should plug the Rotate 180 degree to power supply and insert.

The temperature controller of above-mentioned environmental protection electric blanket is made up of temperature-sensitive insulating barrier and the fuse that is connected on circuit.

The principle and the course of work: the environmental protection electric blanket is plugged in,, illustrate that the outer loop in the heating line is the phase current potential, do not have the effect of screen fraud if the power phase indicator lamp is not luminous.Just should insert power supply and turn over the insertion again of 180 degree.The internal layer resistance coil produces the heat heat supply during energising.Because the instantaneous value of the electric current in internal layer resistance coil and the outer lead loop, Deng oppositely big, again since the interior resistance coil number of turn suitably more than the outer conductor coil turn, the circle radius of interior resistance coil is less than the circle radius of outer conductor circle, so the electromagnetic field that produces etc. are oppositely big.Offset, so electromagnetic-radiation-free, if also have some remaining electromagnetic waves to shoot out, the outside also has the screen fraud layer of ground connection to absorb electromagnetic wave.So this electric blanket has just become the environmental protection electric blanket of electromagnetic-radiation-free.

Description of drawings:

Fig. 1 is the utility model environmental protection electric blanket schematic diagram;

Fig. 2 is heating toe-in composition;

Among the figure: 1, supply socket, 2, power plug, 3, terminal box, 4 fuses,

5, neon tube, 6, high value resistor, 7, the heating line, 8, screen fraud layer, 9, screen fraud layer ground wire, 10, the pad blanket, 11, the insulation heart yearn, 12, interior resistive conductor coil, 13, the temperature-sensitive insulating barrier, 14, the outer conducting lead coil, 15, insulating barrier;

The specific embodiment:

As shown in the figure, fuse [4] is connected on the top of the internal layer resistance coil of heating line, and power phase refers to the neon tube [5] and high value resistor [6] series connection of lamp, is connected across between the internal layer resistance coil top and screen fraud layer of heating line, screen fraud layer [8] is by ground wire [9] ground connection.The heating line embeds between the interlayer of pad blanket [10].The interior resistance coil [12] of heating line has temperature-sensitive insulating barrier [13] to isolate on the insulation heart yearn between outer conducting lead circle [14] and the interior resistance coil [12].The outer conducting lead circle has insulating barrier [15] outward, the outside is shielded fraud layer [8] in addition, power plug [2] is gone on the socket [1], if power phase indicator lamp, do not work, will transfer to power plug [2], turn over 180 degree and insert again, power supply indicator is shinny, and outer conducting lead circle [14] current potential that the heating line is described is zero.The heating of heating line, instantaneous value size of electric current in electric current in the interior resistance coil [12] and the outer conductor coil [14] etc., direction are opposite, the magnetic flux sizes that coil produces etc., direction are opposite, cancel out each other, there is not electromagnetic radiation, if also have remaining electromagnetic radiation, the screen fraud layer [8] of ground connection also can absorb it.So this electric blanket is a kind of environmental protection electric blanket of electromagnetic-radiation-free.

Claims

1, a kind of environmental protection electric blanket, be the heating line to be embedded in the interlayer of pad blanket its feature: the heating line has inside and outside two-layer conducting channel, and the heating line has screen fraud layer ground connection, also is connected with power phase indicator lamp and fuse on the heating line.

2, environmental protection electric blanket according to claim 1, its feature: the heating line has inside and outside two-tier circuit, internal layer circuit is the resistive conductor coil, on the insulation heart yearn, outer circuit is a lead loop, have the temperature-sensitive insulating barrier isolated between the inside and outside two-tier circuit, the outside of outer circuit also has insulating barrier.

3, according to claim 1 or 2, described environmental protection electric blanket, its feature: an end of the inside and outside two-tier circuit of heating line is electrically connected, and the other end connects power supply in terminal box.

4, according to claim 2, described environmental protection electric blanket, its feature: the internal layer resistance coil circle radius of heating line is less than outer lead loop circle radius, and the number of turn of internal layer resistance coil is suitably more than the number of turn of outer conductive coil.

5, environmental protection electric blanket according to claim 1, its feature: the power phase indicator lamp is high resistance measurement of a neon tube series connection, is connected across between interior resistance coil top and the screen fraud layer.