CN203252311U - Safe type radiation prevention electric blanket - Google Patents
Safe type radiation prevention electric blanket Download PDFInfo
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- CN203252311U CN203252311U CN 201320049816 CN201320049816U CN203252311U CN 203252311 U CN203252311 U CN 203252311U CN 201320049816 CN201320049816 CN 201320049816 CN 201320049816 U CN201320049816 U CN 201320049816U CN 203252311 U CN203252311 U CN 203252311U
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- blanket
- rectifier
- heating
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- electric blanket
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Abstract
Provided is a safe type radiation prevention electric blanket. The safe type radiation prevention electric blanket is a device for heating and heat preservation, and comprises a blanket body, a direct-current rectifier, a leakage protector, a temperature control switch and a three-pole plug. A core wire is composed of heating wires, the heating wires are the same in section, the section of each heating wire is of a bow-shaped circle shape, or a semi-oval shape or a flat band shape or the like, the bow-shaped circle is no larger than a semicircle, planes of the heating wires get close to each other after relative insulation is carried out on the heating wires, a conductive shielding layer coats the heating wires, and the core wire is arranged in the blanket body in a parallel bending mode. The special core wire structure is adopted to carry out internal direct-current power supply, radiation can be counteracted and shielded, and the good radiation prevention function is achieved. Due to the facts that the outer conductive shielding layer of the core wire serves as a ground loop, the three-pole plug is adopted, and the leakage protector is added, the leakage automatic power-off protection function is achieved, and safety and reliability are achieved. The safe type radiation prevention electric blanket can be widely applied to various fields of household heating, medical equipment, electric heating clothes, food processing and the like.
Description
Technical field
The utility model relates to heating, heat-preserving equipment, particularly a kind of protection against electric shock, anti-radiation electric blanket.
Background technology
Electric blanket is as a kind of insulation, warming article, because of the advantage such as power consumptive province, temperature be suitable, easy to use, cheap, comes in a large number huge numbers of families and factory, enterprise; The special domestic heating staple product that has become outlying mountain area and low-income groups.But it bring to people warm in, also lie dormant and easily get an electric shock and problems that electromagnetic radiation safety, health and comfortableness are poor etc.
Only just have Henan area in 2008 a lot of by media report, because of use in winter electric blanket reason cause deadly, cause injury and fire incident because using electric blanket to cause.Allow the people more distressed be that the object that is hurt mostly is the elderly.In addition, according to many media such as " Chinese household electrical appliances are online ": " electric blanket in the market in use, the electromagenetic wave radiation of generation exceeds the relevant electromagenetic wave radiation safety standard value of country more than tens times and even hundred times, has a strong impact on healthy ".This problem has caused the great attention of relevant government department, revises the QB/T-3898-1999 standard in 2008 for this reason, and amended new standard QB/T-2994-2008 emphasis has increased radiation-resistant requirement.
The topmost reason of electric blanket generation security incident is: well do not consider the earth leakage protective problem during traditional electric blanket design.And traditional electric blanket directly uses alternating current, and the cyclically-varying of electromagnetic field causes cell membrane vibration or resonance, disturbs the biological electromagnetic field of human body, particularly brain electricity and electrocardio generation is disturbed; Orientation effect by electromagnetic field affects human circulation and metabolic function, so that brings out various systemic diseases.Radiation effects due to the electric blanket is the major incentive of cancer, reproduction pathology, genetic block, senile dementia, amnesia, leukemia of children, diabetes, cataract, heart disease etc.Therefore, solve the electric leakage problem of electric blanket, the electromagnetic radiation of eliminating electric blanket is very necessary.
At present, prior art does not have creepage protection function, and multiplex AC power acts directly on the electric-heating-wire-heating heating.Thereby electric blanket safety in the market, comfortableness are poor, and radiation intensity is high, healthy unfavorable to the people, so its improvement and bring new ideas is imperative.
Summary of the invention
For above-mentioned situation, for overcoming the defective of prior art, the purpose of this utility model is to provide a kind of anticreep electric blanket, can effectively solve the electric blanket security, comfortableness is poor, and radiation intensity is high, to the problem of people's healthy unfavorable grade.
The technical scheme that the utility model solves is to comprise blanket body, dc rectifier, earth leakage protective device, temperature regulating switch and three-terminal polarized plus plug (such as PBS-10).Electric heater 2 is housed in the blanket body 1; the external dc rectifier of blanket 3 links to each other electric heater power with placing, the external shield conductive layer of electric heater connects three-terminal polarized plus plug PE (protective grounding or connecting to neutral) end; the power supply of dc rectifier 3 connects earth leakage protective device 4, and earth leakage protective device 4 connects alternating current 220V power supply (civil power) through temperature regulating switch 5 by three-terminal polarized plus plug 6 again.Described electric heater 2 (being provided by Fig. 2, Fig. 3) is parallelly to place that outer protection conductive shielding layer 9 is interior to consist of heart yearn by two of tape insulation layer 10 identical heating wire 7,8; two heated filaments, one end links to each other, and the other end connects respectively positive pole and the negative pole (as shown in Figure 2) of the dc source after the dc rectifier rectification.
The utility model novel structure is unique, safety and comfort, and energy-conserving and environment-protective are conducive to the healthy of people, and good economic and social benefit is arranged.
Description of drawings
Fig. 1 is structural principle front view of the present utility model.
Fig. 2 is electric heater laying structure front view of the present utility model.
Fig. 3 is the cross sectional view of electric heater heated filament of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.
Provided by Fig. 1, the utility model comprises blanket body, dc rectifier, earth leakage protective device, temperature regulating switch and three-terminal polarized plus plug.Electric heater 2 is housed in the blanket body 1, and electric heater is with placing the external dc rectifier of blanket 3 to link to each other, and the power supply of dc rectifier 3 connects earth leakage protective device 4, and earth leakage protective device 4 connects alternating current 220V power supply (civil power) through temperature regulating switch 5 by three-terminal polarized plus plug 6 again.Described electric heater 2 is parallelly to place that outer guard shield conductive layer 9 is interior to consist of heart yearn by two of tape insulation layer 10 identical heating wire 7,8, and two heated filaments, one end links to each other, and the other end connects respectively positive pole and the negative pole of the dc source after the dc rectifier rectification.
Described heating wire heart yearn 7,8 is provided by Fig. 2, Fig. 3, be cross section identical semicircle or half elliptic, or less than the arc circle of semicircle or the flat shapes such as band shape, the plane of two heating wire heart yearns is relatively close, its spacing≤1.2mm, two heart yearns are parallel bended and place in the blanket body.
Described rectifier is full-wave rectification bridge; full-wave rectification bridge D5 input connects the output of earth leakage protective device 4 through protective tube FR; the dc output end positive pole connects capacitor C 1 one ends and diode D6 one end; the dc output end negative pole connects the other end of capacitor C 1 and an end of capacitor C 2, and the other end of diode D6 links to each other with the other end of capacitor C 2.
Described earth leakage protective device is the device that low-voltage distribution system is used, and the hookup that R1 and self-complex switch form is connected to phase line L by neutral conductor N; Wear civil power in the Current Transmit, a termination rectification diode D3, D4, controllable silicon negative electrode (C), capacitor C 3, voltage-stabiliser tube VD1, resistance R 3; The other end and the resistance R 2 of transformer other end connecting resistance R3, voltage-stabiliser tube VD1; The other end of resistance R 2 joins with capacitor C 3 other ends and the SCR control utmost point (G); Relay contact section breaker (SW) is connected to power supply, connects piezo-resistance (YM) between L and the N behind relay contact section breaker (SW) output; Relay work loop K one termination rectification diode D1, D2, another termination controllable silicon anode (A); The electric current of rectifier bridge is provided by power supply L, N, is connected to respectively on the connecting path of commutation diode D1, D3 and D2, D4.
By said structure, the utility model is to adopt the mode of DC power supply and " radiation counteracting " significantly to reduce radiation; Realize electric leakage auto-breaking defencive function with heating wire external shield conductive layer and earth leakage protective device, and further eliminate radiation, elimination static.Realize automatically protection of electric leakage, eliminate electromagnetic radiation, eliminate static, improve comfortableness, the protection user's is safe, healthy.
Compared with prior art; the utility model becomes original Alternating Current Power Supply direct current supply, adopts the multi-structural layer heating wire, uses earth leakage protective device and with the three-terminal polarized plus plug of ground connection, and the safe practice progress of this family of electric blanket heating product is had landmark meaning.Owing to adopt earth leakage protective device, as earth-return circuit, fundamentally solved the electric leakage problem of electric blanket with the heating wire outer conducting layer; Circuit is provided with protective tube and piezo-resistance, and short circuit and overvoltage are had defencive function.Because the outer conducting layer of heating wire lays and the blanket body uniformly, and by three-terminal polarized plus plug (PE end) ground connection, can well eliminate static and improve comfortableness.The effect of DC electric energy elimination electric field reduces magnetic field to the human injury to the impact of human body.But dc source can not be eliminated magnetic field radiation to the impact of human body, because direct current can produce the annular Vector Magnetic Field perpendicular to conductor, there is injury in magnetic field to human body equally.Be directly proportional because magnetic field is size and the conductor current of vector and generation, and magnetic direction is relevant with current direction; Therefore, as long as the electric current of two opposite sign but equal magnitude enough hour of distance on enough thin conductor, the envelope external magnetic field intensity of two conductors is close to zero, and situation was identical when its situation was zero with Ampere circuit law circulation just in time.So as long as system of laying and the process reform of traditional electrical heated filament required for meeting upper genus.The utility model electric blanket has above-mentioned functions fully.
The utility model can adopt when producing makes semicircle or semiellipse with heating wire or less than arc circle or the flat type shapes such as band shape, the then insulation paint immersion coating of semicircle; The insulated paint of dip-coating is dried to meets insulating requirements, insulated paint is the suitable insulating barrier such as application of polyvinyl as required more outward; Again outside two treated qualified heating wire, compress and to add one deck and conduct electricity netted screen layer.The utility model is easy to industrialized mass production, and with low cost.Batch production can be made elongated, blocks during use, and two heart yearns, one end termination, the two heart yearn other ends connect respectively positive pole and the negative pole of power supply.The heating wire of making so just in time satisfies above-mentioned requirements after adding direct current, and its size of current equates, opposite direction, and the outer electromagnetic radiation of screen layer is close to zero.
Electric heater heated filament of the present utility model can also adopt following structure to realize:
1, lays being close to behind two common electrothermic wire insulations.This mode will be noted being fixed, because there is repulsion in the straight parallel current conductor of two current opposite in direction, and nearlyer repulsion is larger.
2, two common heating wire through external insulation are twisted into twisted shape.
3, heating wire (comprising the bandwire sheet) is made the close around mode of similar electromagnet.
Electric heater heated filament of the present utility model external shield can also adopt following structure to realize:
1, adopt airtight conductive foil to coat;
2, make the close around mode (comprising ribbon line) of similar electromagnet;
3, with many conductors canoe in the same way not.
Earth leakage protective device of the present utility model also can be replaced by the finished product in market.
The utility model safety, environmental protection, comfortable, healthy, and radiation can be reduced in theory below the internationally recognized safe radiation intensity 0.15 μ T.Because the unique texture of heating wire, not needing has the loop in addition, therefore can make the system of laying variation.Both can adopt traditional system of laying also can adopt and spiral around waiting system of laying, convenient, flexible, be easy to suitability for industrialized production, result of use is good.The subsidiary earth-return circuit of the utility model has the function of eliminating static, and security, comfortableness all have qualitative leap, are the innovations on the space heater.This technology can be widely used in a plurality of fields such as Medical Devices, electric pyrogenicity clothes, food processing.
Claims (4)
1. safety-type anti-radiation electric blanket, comprise blanket body, dc rectifier, earth leakage protective device, temperature regulating switch and three-terminal polarized plus plug, it is characterized in that, electric heater (2) is housed in the blanket body (1), electric heater is with placing the external dc rectifier of blanket (3) to link to each other, the power supply of dc rectifier (3) connects earth leakage protective device (4), and earth leakage protective device (4) connects the alternating current 220V power supply through temperature regulating switch (5) again; Described electric heater (2) is to consist of heart yearn in outer protection conduction, the screen layer (9) by parallel the placing of two identical heating wire (7,8) of tape insulation layer (10); two heated filaments, one end links to each other, and the other end connects respectively positive pole and the negative pole of the dc source after the dc rectifier rectification.
2. safety-type anti-radiation electric blanket according to claim 1 is characterized in that, described battery core line heated filament (7,8) is the identical semicircle in cross section or half elliptic, or less than the arc circle of semicircle, or flat belt like shape; The plane of two battery core line heated filaments compresses near insulation is rear relatively, its spacing≤1.2mm, and the mesh shields layer of overcoat conduction is fixed, and two heart yearns are parallel bended and place in the blanket body; Adopt the triple-pole type plug, screen layer extremely links to each other with one of plug earthed.
3. safety-type anti-radiation electric blanket according to claim 1; it is characterized in that; described rectifier is full-wave rectification bridge; full-wave rectification bridge D5 input connects the output of earth leakage protective device (4) through protective tube FR; the dc output end positive pole connects capacitor C 1 one ends and diode D6 one end; the dc output end negative pole connects the other end of capacitor C 1 and an end of capacitor C 2, and the other end of diode D6 links to each other with the other end of capacitor C 2.
4. safety-type anti-radiation electric blanket according to claim 1 is characterized in that, described earth leakage protective device is the device that low-voltage distribution system is used, and the hookup that R1 and self-complex switch form is connected to phase line L by neutral conductor N; Wear civil power in the Current Transmit, a termination rectification diode D3, D4, controllable silicon negative electrode (C), capacitor C 3, voltage-stabiliser tube VD1, resistance R 3; The other end and the resistance R 2 of transformer other end connecting resistance R3, voltage-stabiliser tube VD1; The other end of resistance R 2 joins with capacitor C 3 other ends and the SCR control utmost point (G); Relay contact section breaker (SW) is connected to power supply, connects piezo-resistance (YM) between L and the N behind relay contact section breaker (SW) output; Relay work loop K one termination rectification diode D1, D2, another termination controllable silicon anode (A); The electric current of rectifier bridge is provided by power supply L, N, is connected to respectively on the connecting path of commutation diode D1, D3 and D2, D4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049816 CN203252311U (en) | 2013-01-30 | 2013-01-30 | Safe type radiation prevention electric blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049816 CN203252311U (en) | 2013-01-30 | 2013-01-30 | Safe type radiation prevention electric blanket |
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| Publication Number | Publication Date |
|---|---|
| CN203252311U true CN203252311U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049816 Expired - Fee Related CN203252311U (en) | 2013-01-30 | 2013-01-30 | Safe type radiation prevention electric blanket |
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| CN (1) | CN203252311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068731A (en) * | 2014-06-25 | 2014-10-01 | 徐州中安机械制造有限公司 | Double-shielded constant-temperature electric heating carpet |
-
2013
- 2013-01-30 CN CN 201320049816 patent/CN203252311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068731A (en) * | 2014-06-25 | 2014-10-01 | 徐州中安机械制造有限公司 | Double-shielded constant-temperature electric heating carpet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Jinhong Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhao Weiya Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140130 |