CN201286547Y - Electric blanket without magnetic-field radiation - Google Patents
Electric blanket without magnetic-field radiation Download PDFInfo
- Publication number
- CN201286547Y CN201286547Y CNU2008201519400U CN200820151940U CN201286547Y CN 201286547 Y CN201286547 Y CN 201286547Y CN U2008201519400 U CNU2008201519400 U CN U2008201519400U CN 200820151940 U CN200820151940 U CN 200820151940U CN 201286547 Y CN201286547 Y CN 201286547Y
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- China
- Prior art keywords
- screen layer
- electric blanket
- magnetic field
- field radiation
- blanket
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- Expired - Fee Related
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Abstract
The utility model relates to an electric blanket without magnetic emission, which comprises a blanket body and a heating unit provided with a shielding layer. The heating unit is a single-strand heating wire provided with an insulating layer; the heating wire is folded in half, the two halves of the wire are wrapped tightly through the shielding layer, and wound in parallel; when the electric blanket is energized, the values of the currents in the two parallel wires are equal and the directions thereof are opposite, so that the magnetic fields generated by the heating wire cancel each other out; meanwhile, an electric field generated by the heating wire is shielded by the shielding layer, therefore, the radiation of the electric field is eliminated effectively, and the side effects caused by the electromagnetic field are also eliminated.
Description
Technical field
The utility model relates to a kind of electric blanket with the radiation of anti-magnetic field, belongs to small stores class technical field.
Background technology
Electric blanket is a kind of cheapness that last century, late nineteen seventies began to occur, practical small household appliances.For a long time, quite be subjected to people's welcome.Existing commercially available electric blanket adopts heating wire twist on the fire-retardant flexible cord in inside usually, current direction be folk prescription to, thereby produce stronger low frequency magnetic field.People recognize that progressively the electric current low frequency magnetic field that produces behind the resistance wire of flowing through has certain radiation to human body, and this gives people healthyly brings some harmful effects, has caused people's attention.
People study eliminating the low frequency magnetic field radiation.A kind of electric blanket of avoiding electromagenetic wave radiation of document announcement is arranged recently, and this electric blanket has adopted double-deck winding process, and promptly the ground floor heating wire is just around the back-roll of, second layer heating wire.Because inside and outside two-layer heating wire coiling diameter does not wait, and has only offset the part electromagenetic wave radiation, and the production technology more complicated.
For the consideration to health, people adopt before sleep energising a period of time earlier usually when using electric blanket, powered-down more in bed, and the heating function of electric blanket just can not be fully utilized like this.In order to solve heating and to avoid being subjected to the contradiction of low frequency magnetic field radiation, we provide in a kind of effective elimination electric blanket magnetic field to the radiation hazradial bundle of human body and no magnetic field radiation electric blanket safe in utilization.
The utility model content
The purpose of this utility model is at the above-mentioned deficiency of prior art, provides a kind of magnetic field of can effectively eliminating in the electric blanket to the radiation hazradial bundle and the manufacturing process no magnetic field radiation electric blanket simple, safe in utilization of human body.
Technical solution of the present utility model is as follows:
No magnetic field electric heating blanket structure is the outer blanket body that is, the center is the heater that is provided with the doubling coiling of screen layer, wherein, described heater is the heating wire that sub-thread is provided with insulating barrier, with the heating wire doubling, two lines of doubling are parallel to be twined, and wraps the metal forming screen layer again outside two-wire.
As mentioned above, the heating wire of the utility model electric blanket adopts the single cord doubling to twine, when switching on to electric blanket, and the equal and opposite in direction of electric current in two strands arranged side by side, direction is opposite, and cancelling out each other in the magnetic field that heating wire produces, reaches the purpose of demagnetization.Screen layer is with the electric field shielding of heating wire generation simultaneously.The blanket body is identical with the general material that electric blanket adopted.
Main feature of the present utility model is to have eliminated the harm that the electromagnetic field that heating wire produced is produced people's human body, plays function of health care, and keeps the effect of electric blanket heating, and has manufacturing process and simply, do not increase cost, advantage safe in utilization.
Description of drawings
Fig. 1 is an electric blanket structural representation of the present utility model
Number in the figure: 1 is the blanket body, and 2 is heater.
Fig. 2 is the bifilar heating element structure schematic diagram of doubling
Number in the figure: 1 is the blanket body, and 3 is heating wire, and 4 is insulating barrier, and 5 is screen layer
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model does not have the magnetic field radiation electric blanket and comprises blanket body 1, heater 2, and wherein said heater is heating wire 3 (see figure 2)s that sub-thread is provided with insulating barrier 4, with heating wire 3 doublings, two lines 3 of doubling can be close to parallel the winding by screen layer 5 parcels.When switching on to electric blanket, the equal and opposite in direction of electric current in two strands arranged side by side, direction is opposite, and cancelling out each other in the magnetic field that heating wire produces, reaches the purpose of demagnetization.The electric field shielding that while produces heating wire 3 owing to screen layer 5, thus electric field radiation effectively eliminated, and the human body of contact electric blanket is not subjected to than highfield irradiation.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (9)
1, a kind of electric blanket that does not have magnetic field radiation comprises the blanket body, is arranged on the heater in the blanket body, it is characterized in that described heater is the heating wire that sub-thread is provided with insulating barrier.
2, a kind of electric blanket that does not have magnetic field radiation according to claim 1 is characterized in that described heating wire is provided with screen layer.
3, a kind of electric blanket that does not have magnetic field radiation according to claim 2 is characterized in that, described screen layer is the screen layer that metal forming is made.
4, a kind of electric blanket that does not have magnetic field radiation according to claim 2 is characterized in that, described screen layer is to scribble the screen layer that the metal forming of conducting resinl is made.
5, a kind of electric blanket that does not have magnetic field radiation according to claim 2 is characterized in that, described screen layer is the screen layer that woven wire is made.
6, a kind of electric blanket that does not have magnetic field radiation according to claim 2 is characterized in that, described screen layer is the screen layer that Electromagnetically shielding fabrics is made.
7, a kind of electric blanket that does not have magnetic field radiation according to claim 6 is characterized in that, described screen layer is the screen layer that stainless steel metal wire and polyester cotton are made.
8, a kind of electric blanket that does not have magnetic field radiation according to claim 6 is characterized in that the screen layer that described screen layer is made for the metal coating fabric.
9, a kind of electric blanket that does not have magnetic field radiation according to claim 6 is characterized in that the screen layer that described screen layer is made for the acrylic conductive fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201519400U CN201286547Y (en) | 2008-08-14 | 2008-08-14 | Electric blanket without magnetic-field radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201519400U CN201286547Y (en) | 2008-08-14 | 2008-08-14 | Electric blanket without magnetic-field radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201286547Y true CN201286547Y (en) | 2009-08-12 |
Family
ID=40978215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201519400U Expired - Fee Related CN201286547Y (en) | 2008-08-14 | 2008-08-14 | Electric blanket without magnetic-field radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201286547Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149227A (en) * | 2011-04-28 | 2011-08-10 | 连建永 | Electric heating wire wiring method in flexible heating appliance |
| CN102958208A (en) * | 2011-08-25 | 2013-03-06 | 迟昀涛 | Zero-magnetic-field safety electric blanket with helical wires |
| CN103179699A (en) * | 2013-02-27 | 2013-06-26 | 杨成鑫 | Low-voltage electric heating appliance free of harmful electromagnetic wave radiation |
-
2008
- 2008-08-14 CN CNU2008201519400U patent/CN201286547Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149227A (en) * | 2011-04-28 | 2011-08-10 | 连建永 | Electric heating wire wiring method in flexible heating appliance |
| CN102958208A (en) * | 2011-08-25 | 2013-03-06 | 迟昀涛 | Zero-magnetic-field safety electric blanket with helical wires |
| CN103179699A (en) * | 2013-02-27 | 2013-06-26 | 杨成鑫 | Low-voltage electric heating appliance free of harmful electromagnetic wave radiation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20160814 |