CN102878601A - Radiation elimination device for radiationless induction cooker - Google Patents
Radiation elimination device for radiationless induction cooker Download PDFInfo
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- CN102878601A CN102878601A CN 201110207516 CN201110207516A CN102878601A CN 102878601 A CN102878601 A CN 102878601A CN 201110207516 CN201110207516 CN 201110207516 CN 201110207516 A CN201110207516 A CN 201110207516A CN 102878601 A CN102878601 A CN 102878601A
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Abstract
The invention discloses a radiation elimination device for a radiationless induction cooker. The radiation elimination device for the radiationless induction cooker consists of a shell lower cover, a shell upper cover, a supporting panel, a cooking pot body, a pot body contact pad, a radiation absorption layer, an electromagnetic conversion operating circuit and a power supply ground line, wherein the shell lower cover, the shell upper cover and the supporting panel form a complete shell; the radiation absorption layer is arranged at the corresponding position of the shell; functional devices of the induction cooker are arranged in the shell; the power supply ground line is connected with the radiation absorption layer and the pot body contact pad; the cooking pot body is fully contacted with the pot body contact pad and forms a complete shielding cover body through the pot body contact pad and the radiation absorption layer; and electromagnetic radiation generated by an electronic circuit inside the shielding cover body can be shielded and adsorbed by the shielding cover body and is discharged and eliminated by connecting a ground line of a power supply line to the ground, so that the aim of eliminating the harm caused by discharging electromagnetic radiation to outside when the induction cooker works is fulfilled. The radiation elimination device for the radiationless induction cooker can be used in household induction cookers, hot pot induction cookers, tea induction cookers, kitchen cabinet induction cookers, electromagnetic rice cookers and all electromagnetic induction heating fields of industry, commerce and the like.
Description
Technical field
The present invention relates to shield the field that reduces or eliminate electrical equipment electromagnetic radiation, especially a kind of irradiation eliminating apparatus that electromagnetic radiation can be shielded the non-radiation electromagnetic oven that absorbs and eliminate by the earth connection in the power supply.
Technical background
In recent years, electromagnetic oven becomes the household electrical appliances rising star because its thermal efficiency is high and has entered huge numbers of families.Its operation principle is: AC power is converted to direct current through rectifier, make direct current become the high-frequency alternating current of 20-30KHZ through the RF power converter again, again high-frequency alternating current is added on the electromagnetic induction coil of flat cored screw shape, produce thus high-frequency alternating magnetic field, its magnetic line of force penetrates the heat-resisting support panel of stove shell top setting and acts on the metal pan that is placed on this support panel, produce powerful eddy current in the metal pan bottom because of electromagnetic induction, the internal resistance that eddy current overcomes the bottom of a pan produces thermal source.Electromagnetic oven work that is to say as long as just must have the substantial radiation source that the low frequency of the high frequency of 20-30KHZ and 220V is superimposed.The electromagnetic radiation meeting of electromagnetic oven causes adverse effect to people's cognition of close contact electromagnetic oven, and the research staff has proposed many technical schemes to solve electromagnetic radiation for this reason.For example, disclose " a kind of electromagnetic oven " in the Chinese utility model patent specification of the CN2682767Y of on March 2nd, 2005 bulletin, its technical scheme comprises body of heater and platen, and platen is fixed on the body of heater, the body of heater surface is coated with metal coating, and the metal in the metal coating is nickel alloy.The body of heater surface of the electromagnetic oven of this structure is coated with metal coating can only carry out the part magnetic screen to electromagnetic oven.
A kind of " radiation protection electromagentic furnace " disclosed in the Chinese utility model patent specification of the CN2777921Y of on May 3rd, 2006 bulletin, comprise upper shell, lower house and panel, characteristics are that the part beyond the relative stove interior loop of panel is provided with the metal radiation protective layer, and this metal radiation protective layer is located at outer surface or the inner surface of panel; The inner surface of upper shell, lower house or outer surface are provided with the metal radiation protective layer, this metal radiation protective layer disclosed technical scheme in specification is: upper shell, lower house can directly adopt ferromagnetic material or composite material to make, also can outside the plastic material housing, set up the cover body of a composite material, the heating position of the relative electromagnetic oven of cover body is provided with the cooker posting port, and air entry and the exhaust outlet of lower house are provided with wire netting.Technical scheme adopts metal radiation protective layer electromagnetic radiation shielding with electromagnetic induction coil corresponding to the part beyond the panel heating position in the above-mentioned disclosed file, but the device of eliminating radiation is not set, and between this electromagnetic radiation shielding device panel and the housing, have the leakage field gap between panel and the pan, exist can not be effectively with ELECTROMAGNETIC RADIATION SHIELDING and the deficiency eliminated.
In on April 19th, 2006 disclosed Chinese invention patent application prospectus disclosed " a kind of skid resistant, antimagnetic leakage structure of electromagnetic oven ", in the disclosed technical scheme of this application be: include the electromagnetic oven main body, cooking pan is seated on the support flat board of electromagnetic oven, the dull and stereotyped outer rim of support is embedded with ring-type skid resistant, antimagnetic leakage the first quoit, the second quoit of ring-type antimagnetic leakage also is installed around the electromagnetic induction wire coil outer in the electromagnetic oven, and the second quoit also is connected to a ground wire that draws outward.Electromagnetic induction coil can only be adopted the quoit radiation-screening corresponding to the part beyond the support flat board in the above-mentioned disclosed technical scheme, and the ground wire that connects on quoit carries out magnetic radiation and releases, ring-type skid resistant, antimagnetic leakage first quoit of the dull and stereotyped outer rim setting-in of support
Can further absorb the magnetic line of force, prevent that magnetic dispersion from occuring.But, electromagnetic induction coil is the position that the magnetic line of force is the most intensive, electromagnetic radiation is the strongest corresponding to the pot body heated end portion on the support flat board, magnetic line of force major part herein can be absorbed by the pot body, and a fraction of magnetic line of force is because of between the second quoit and the support flat board, have the leakage field gap between pot body and support flat board and the first quoit, cause electromagnetic radiation from the leakage field gap, to let out, so external electromagnetic radiation still exists.
In addition on June 1st, 2007, my application and patent of invention " irradiation eliminating apparatus of the non-radiation electromagnetic oven " patent No. of authorizing are in the patent applications such as 200710109398.2, although radiation provides a kind of shielding and cancellation element technology of complete closure to electromagnetic oven, also there is the incomplete problem in pot body touch pad installation site.
Summary of the invention
The deficiency of can not desirable shielding eliminating electromagnetic radiation in order to overcome existing electromagentic furnace technology, the invention provides a kind of screening arrangement that complete closure arranged, have radiation eliminate the loop, can the radiation of low-cost high-efficiency ground elimination electromagnetic oven the irradiation eliminating apparatus of non-radiation electromagnetic oven.Not only method is simple to utilize this technology, and is with low cost and to eliminate radiation effect good.
The present invention's technical scheme that adopts of dealing with problems is: a kind of irradiation eliminating apparatus of non-radiation electromagnetic oven, by complying with the shell lower cover that is assemblied in one outward, outer casing upper cover, support panel, cooking pan, pot body touch pad, radiation absorption layer, electromagnetic conversion operating circuit and power ground form, by the shell lower cover, outer casing upper cover, support panel forms a complete housing, the shell lower cover, outer casing upper cover is made of metal material or other insulating materials, support panel is made of black crystal panel or other similar materials, cooking pan is made of iron or the good material of other magnetic properties, pot body touch pad is made of the good material of electric conductivity, radiation absorption layer is directly to adopt metal shell or at the insulation crust lower cover by plastics etc., the complete outer casing inner wall that loam cake and the support panel that is connected form or outer wall are processed into the radiation absorption layer of approximate shell body with conductive material, the function element of electromagnetic oven product is loaded on the radiation absorption layer inboard, the electromagnetic conversion operating circuit is the circuit of selecting existing electromagnetic oven product, and power ground adopts the single-phase three-jaw attaching plug with ground wire to carry out the ground wire connection.Ground wire in the power line is connected with radiation absorption layer and pot body touch pad, cooking pan fully touches a pot body touch pad, and by pot body touch pad and complete shielding cover body of radiation absorption layer formation, electronic circuit generation electromagnetic radiation when shielding cover body inboard just can shield absorption with the shielding cover body, connect the earth eliminations of releasing by the ground wire in the power line again, the external hazards of electromagnetic radiation of generation when eliminating electromagnetic oven work fully.
Described support panel adopts a kind of in numerous panels such as ceramic panel, black crystal panel.
The material that described cooking pan is good with iron or other magnetic properties and outer surface resistance is little is made, and can contact with the face that pot body touch pad is carried out small resistor.
Described pot body touch pad installation site is on the shell support panel or on the shell or supporter that can contact with the pot body, and can directly or indirectly touches the cooking pan in the work; Be shaped as the closed touch pad of close ring touch pad or other shapes or adopt independently one or more touch pads of the shape bodies such as disc shape, band shape, wire, strip or point-like body, quantity is one or more, makes of the material that the surface conductance performance is good; Pot body touch pad one end carries out small resistor with cooking pan and contacts, and the other end is wanted directly or indirectly to carry out small resistor with radiation absorption layer or ground wire and is connected.
Described radiation absorption layer can directly adopt metal shell to shield the electromagnetic radiation that function element sends in the absorption shell; If will be at the shell lower cover during insulation crust of employing plastic or other material, the complete inner walls that loam cake and the support panel that is connected form or outer wall are processed into the radiation absorption layer of approximate housing body with conductive material, the function element of electromagnetic oven product is loaded on the radiation absorption layer inboard, the leaving a space greater than the electromagnetic induction wire coil external diameter near the electromagnetic induction wire coil position and be not coated with radiation absorption layer of radiation absorption layer on support panel, the radiation absorption layer material therefor is metallic plate, the metal spraying material, conductive film layer, electrically-conducting paint, conduction charcoal slurry, conductive fabric, conductive paper, in the conductive materials such as conductive plastics one or more, if during the radiation absorption layer of other conductive materials that the use metallic plate is outer, will be at the loam cake of corresponding electromagnetic wire coil or lower cover or simultaneously upper, the appropriate location of lower cover increases metallic plate, increases the effect that shielding absorbs radiant magnetic-field intensity.Described electromagnetic conversion operating circuit is to adopt a kind of in the general various electromagnetic conversion operating circuits of existing electromagentic furnace technology.
Described power ground adopts the single-phase three-jaw attaching plug with ground wire to carry out the ground wire connection.
The invention has the beneficial effects as follows: simple in structure, with low cost, eliminate that radiation effect is good, highly versatile.
Description of drawings:
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a kind of principle schematic of the present invention.
Fig. 2 is a kind of example structure schematic diagram of the present invention.
Mark among the figure: 1. shell lower cover, 2. outer casing upper cover, 3. support panel, 4. cooking pan, 5. pot body touch pad, 6. radiation absorption layer, 7. electromagnetic conversion operating circuit, 8. power ground.
The specific embodiment
The present invention is further described below in conjunction with the principle schematic in the accompanying drawing and structural representation:
Fig. 1 is a kind of principle schematic of irradiation eliminating apparatus of non-radiation electromagnetic oven, mainly comprise: shell lower cover (1), outer casing upper cover (2), support panel (3), cooking pan (4), pot body touch pad (5), radiation absorption layer (6), electromagnetic conversion operating circuit (7), power ground (8).In the accompanying drawings, power ground (8) is connected with radiation absorption layer (6) and pot body touch pad (5), cooking pan (4) fully touches a pot body touch pad (5), and by pot body touch pad (5) and complete shielding cover body of radiation absorption layer (6) formation, when producing electromagnetic radiation, the electronic circuit of shielding in the cover body just can shield absorption with the shielding cover body, again by the elimination of releasing of the ground wire in the power line (8) connection the earth.
Fig. 2 is the structural representation of the irradiation eliminating apparatus of a kind of non-radiation electromagnetic oven of designing of the operation principle according to Fig. 1, by shell lower cover (1), outer casing upper cover (2), support panel (3) forms a complete housing, its housing lower cover (1), outer casing upper cover (2) is made of insulating materials such as metal material or plastics, support panel (3) is with ceramic, black brilliant plate or other similar materials are made, the material making that cooking pan (4) is good with iron or other magnetic properties and outer surface resistance is little, its whole outer surface metal requires light, the smaller the better with pot body touch pad (5) contact resistance, pot body touch pad (5) is installed on the shell support panel (3), or on the shell that can contact with the pot body or the supporter (3), and can directly or indirectly touch cooking pan (4) in the work; Be shaped as the closed touch pad of close ring touch pad or other shapes or adopt independently one or more touch pads of the shape bodies such as disc shape, band shape, wire, strip or point-like body, quantity is one or more, makes of the material that the surface conductance performance is good; Pot body touch pad (5) one ends carry out small resistor with cooking pan (4) and contact, and the other end is wanted directly or indirectly to carry out small resistor with radiation absorption layer (6) or ground wire (8) and is connected.
Radiation absorption layer (6) can directly adopt metal shell to shield the electromagnetic radiation that function element sends in the absorption shell; If will be at the shell lower cover during insulation crust of employing plastic or other material, the complete outer casing inner wall that loam cake and the support panel that is connected form or outer wall are processed into the radiation absorption layer of approximate shell body with conductive material, the function element of electromagnetic oven product is loaded on the radiation absorption layer inboard, the leaving a space greater than the electromagnetic induction wire coil external diameter near the electromagnetic induction wire coil position and be not coated with radiation absorption layer of radiation absorption layer on support panel, material therefor is metallic plate, the metal spraying material, conductive film layer, electrically-conducting paint, conductive fabric, conductive paper, in the conductive materials such as conductive plastics one or more, if will be at the loam cake of corresponding electromagnetic wire coil or lower cover or simultaneously upper during outer other conductive material radiation absorption layers of use metallic plate, the appropriate location of lower cover increases metallic plate, strengthens the effect that shielding absorbs radiant magnetic-field intensity.
Electromagnetic conversion operating circuit (7) is the circuit of selecting existing electromagnetic oven product, and this circuit is placed on by shell lower cover (1), outer casing upper cover (2), the housing inboard that support panel (3) forms is fixed installation, power ground (8) adopts the single-phase three-jaw attaching plug with ground wire, and the interior ground wire of inner be connected with radiation absorption layer (6) outer end and supply socket is connected.
Can make between ground wire (8) in the power line, radiation absorption layer (6), pot body touch pad (5), the cooking pan (4) by above combination and to form a complete shielding cover body, when producing electromagnetic radiation, the inboard electronic circuit of radiation absorption layer (6) just can shield absorption with the shielding cover body, and connect the earth eliminations of releasing by the ground wire in the power line (8), finally reach when eliminating electromagnetic oven and working the purpose to the outward leakage hazards of electromagnetic radiation.
The present invention can be used on all fields with electromagnetic induction heating such as Household induction cooker, hot pot induction cooker, tea electromagnetic oven, cabinet electromagnetic oven, electromagnetism rice cooker and industry, commerce.
Claims (7)
1. the irradiation eliminating apparatus of a non-radiation electromagnetic oven, formed by shell lower cover, outer casing upper cover, support panel, cooking pan, pot body touch pad, radiation absorption layer, electromagnetic conversion operating circuit and power ground, it is characterized in that: radiation absorption layer connects pot body touch pad and is connected with ground wire in the power line, and cooking pan fully touches pot body touch pad and forms a complete shielding cover body by pot body touch pad and radiation absorption layer.
2. the irradiation eliminating apparatus of a kind of non-radiation electromagnetic oven according to claim 1 is characterized in that: described radiation absorption layer can directly adopt metal shell to shield to absorb the electromagnetic radiation that function element sends in the shell; If will be at the shell lower cover during insulation crust of employing plastic or other material, the complete inner walls that loam cake and the support panel that is connected form or outer wall are processed into the radiation absorption layer of approximate housing body with conductive material, the function element of electromagnetic oven product is loaded on the radiation absorption layer inboard, the leaving a space greater than the electromagnetic induction wire coil external diameter near the electromagnetic induction wire coil position and be not coated with radiation absorption layer of radiation absorption layer on support panel, the radiation absorption layer material therefor is metallic plate, the metal spraying material, conductive film layer, electrically-conducting paint, conduction charcoal slurry, conductive fabric, conductive paper, in the conductive materials such as conductive plastics one or more, if will be at the loam cake of corresponding electromagnetic wire coil or lower cover or simultaneously upper during the radiation absorption layer of other conductive materials that the use metallic plate is outer, the appropriate location of lower cover increases metallic plate, strengthens the effect of shielding attenuation radiant magnetic-field intensity.
3. according to claim 1, the irradiation eliminating apparatus of 2 described a kind of non-radiation electromagnetic ovens, it is characterized in that: described support panel adopts a kind of in numerous panels such as ceramic panel, black crystal panel.
4. the irradiation eliminating apparatus of a kind of non-radiation electromagnetic oven according to claim 1 is characterized in that: cooking pan is made of iron or other magnetic properties are good and outer surface resistance is little material, and can and pot body touch pad carry out the Surface Contact of small resistor.
5. the irradiation eliminating apparatus of a kind of non-radiation electromagnetic oven according to claim 1, it is characterized in that: described pot body touch pad installation site, be on the shell support panel or on the shell or supporter that can contact with the pot body, and can directly or indirectly touch the cooking pan in the work; Be shaped as the closed touch pad of close ring touch pad or other shapes or adopt independently one or more touch pads of the shape bodies such as disc shape, band shape, wire, strip or point-like body, quantity is one or more, makes of the material that the surface conductance performance is good; Pot body touch pad one end carries out small resistor with cooking pan and contacts, and the other end is wanted directly or indirectly to carry out small resistor with radiation absorption layer or ground wire and is connected.
6. the irradiation eliminating apparatus of a kind of non-radiation electromagnetic oven according to claim 1 is characterized in that: described electromagnetic conversion operating circuit is to adopt a kind of in the general various electromagnetic conversion operating circuits of electromagentic furnace technology.
7. the irradiation eliminating apparatus of a kind of non-radiation electromagnetic oven according to claim 1 is characterized in that: power ground adopts the single-phase three-jaw attaching plug with ground wire to carry out ground wire to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110207516 CN102878601A (en) | 2011-07-16 | 2011-07-16 | Radiation elimination device for radiationless induction cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110207516 CN102878601A (en) | 2011-07-16 | 2011-07-16 | Radiation elimination device for radiationless induction cooker |
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| Publication Number | Publication Date |
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| CN102878601A true CN102878601A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110207516 Pending CN102878601A (en) | 2011-07-16 | 2011-07-16 | Radiation elimination device for radiationless induction cooker |
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| CN (1) | CN102878601A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108323142A (en) * | 2018-03-07 | 2018-07-24 | 四川无限电科技有限公司 | A kind of household appliance frequency electromagnetic radiation absorption cancellation element |
| CN109869783A (en) * | 2017-12-02 | 2019-06-11 | 山东富帅无辐射技术股份有限公司 | Without external radiation electromagnetic oven |
-
2011
- 2011-07-16 CN CN 201110207516 patent/CN102878601A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869783A (en) * | 2017-12-02 | 2019-06-11 | 山东富帅无辐射技术股份有限公司 | Without external radiation electromagnetic oven |
| CN108323142A (en) * | 2018-03-07 | 2018-07-24 | 四川无限电科技有限公司 | A kind of household appliance frequency electromagnetic radiation absorption cancellation element |
| CN108323142B (en) * | 2018-03-07 | 2024-01-30 | 四川无限电科技有限公司 | Power frequency electromagnetic radiation absorbing and eliminating device for household appliance |
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Application publication date: 20130116 |