CN201032196Y

CN201032196Y - Non-radiation electromagnetic oven

Info

Publication number: CN201032196Y
Application number: CNU2007200191042U
Authority: CN
Inventors: 滕翔升
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-27
Filing date: 2007-02-27
Publication date: 2008-03-05
Anticipated expiration: 2017-02-27

Abstract

The utility model discloses an induction cooler without radiation, consisting of an outer shell, a cooking boiler body, a boiler contacting pad, an electromagnetic conversion work circuit, a conductive shielding cover and a power ground line. The power ground line is connected with the conductive shielding cover and the boiler contacting pad; the cooking boiler body completely contacts the boiler contacting pad; and the boiler contacting pad and the conductive shielding cover form a complete closed shielding cover body. When an electronic circuit in the shielding cover body produces electromagnetic radiation, the closed shielding cover body can be used for shielding; the ground line in the power line can be connected with the ground to discharge and eliminate the electromagnetic radiation, so as to achieve the purpose of no outside electromagnetic radiation when the induction cooler works.

Description

Non-radiation electromagnetic oven

Technical field

The utility model relates to the field that the electric equipment electromagnetic radiation is eliminated in shielding, especially a kind of non-radiation electromagnetic oven that electromagnetic radiation can be shielded and eliminate by the earth connection in the power supply.

Technical background

The hazards of electromagnetic radiation health of human body causes people's attention already.Electromagnetic oven has entered huge numbers of families as the household electrical appliances rising star in recent years, but because working principle of induction cooker is that 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 conversion equipment again, again high-frequency alternating current is added on the load coil of flat cored screw shape, produce high-frequency alternating magnetic field thus, its magnetic line of force penetrates the ceramic platen of the kitchen range top and acts on metal pan, just there is powerful eddy current to produce at pot body internal cause electromagnetic induction, and produces the thermal source of the cooking.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.Harm for the electromagnetic oven radiation causes people's attention already, but many for this reason electromagnetic ovens manufacturer all solve by every means produce effects little.

The patented technology that discloses " radiation protection electromagentic furnace " in 200520025201.3 patents of announcing in " a kind of electromagnetic oven that has electromagnetic radiation shielding device " and on May 3rd, 2006 is disclosed in the CN200520034113.X patent that on July 5th, 2006 was announced, though these two patents have all been mentioned and have been used the metal shell electromagnetic radiation shielding, but all do not mention the device of eliminating radiation, this structure can not be eliminated electromagnetic radiation.

In addition, the patented technology of " a kind of skid resistant, antimagnetic leakage structure of electromagnetic oven " is disclosed in the CN200510100028.3 patent that on April 19th, 2006 was announced, though the antimagnetic leakage ring is arranged and utilizes ground wire to eliminate radiation, but there is the long-pending too little high frequency electromagnetic radiation that can not seal low frequency electromagnetic radiation and electromagnetic disc generation effectively of antimagnetic leakage anchor ring in he, so this patented technology can not shield the electromagnetic radiation of eliminating electromagnetic oven effectively in the same old way.

Summary of the invention

Can not thoroughly shield the deficiency of eliminating electromagnetic radiation in order to overcome existing electromagnetic oven, the utility model provides a kind of has closed screening arrangement to have radiation to eliminate the loop, can eliminate the non-radiation electromagnetic oven of electromagnetic oven radiation effectively.Not only method is simple to utilize this technology, and is with low cost and to eliminate radiation effect good.

The technical scheme that the utility model technical solution problem is adopted is: a kind of non-radiation electromagnetic oven, be assemblied in unitary housing outward by complying with, the pot body, the pot body touches pad, the electromagnetic conversion operating circuit, electrically conductive shield and power ground are formed, shell is made of plastics or other materials, the material that pot body and function iron or other magnetic properties are good is made, the pot body touches pad and makes of the good material of electric conductivity, the electromagnetic conversion operating circuit is a circuit of selecting existing electromagnetic oven product for use, electrically conductive shield be in the enclosure wall or outer wall with the electrically conductive shield of conductive material machine-shaping with shell, the function element of electromagnetic oven product is loaded in the electrically conductive shield, and power ground adopts the single-phase three-jaw attaching plug of band ground wire to carry out the ground wire connection.Ground wire in the power line touches pad with electrically conductive shield and pot body and is connected, the pot body fully touches a pot body and touches pad, and touch pad and complete shielding cover body of electrically conductive shield formation by the pot body, electronic circuit in radome produces electromagnetic radiation and just can shield with the shielding cover body of closure, connect the earth eliminations of releasing by the ground wire in the power line again, external electromagnetic-radiation-free endangers when guaranteeing electromagnetic oven work.

The material that described pot body and function iron or other magnetic properties are good and outer surface resistance is little is made, and can and pot body touch and fill up the face that carries out small resistor and contact.

It is on the outside or middle panel greater than the space of electromagnetic induction wire coil diameter of electrically conductive shield upper end that described pot body touches the pad installation site, and can touch the pot body in the work; Be shaped as in disc shape, band shape, wire, strip or the point-like body one or more, material good with electric conductivity and that outer surface resistance is little is made, and energy contacts with the face that the pot body carries out small resistor.

Described electrically conductive shield be in the enclosure wall or outer wall with the electrically conductive shield of conductive material machine-shaping with shell, the function element of electromagnetic oven product is loaded in the electrically conductive shield, a space greater than the electromagnetic induction wire coil diameter is left in the electromagnetic induction wire coil position, upper end of electrically conductive shield, the radiator fan place, lower end of electrically conductive shield leaves air vent, and the electrically conductive shield material therefor is one or more in the conductive materials such as metallic plate, metal spraying material, conductive film layer, electrically-conducting paint, conductive fabric, conductive paper, conductive plastics.

Described power ground adopts the single-phase three-jaw attaching plug of band ground wire to carry out the ground wire connection.

The beneficial effects of the utility model are: simple in structure, with low cost, good, the highly versatile of elimination radiation effect.

Description of drawings:

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a kind of principle schematic of the present utility model.

Fig. 2 is a kind of example structure schematic diagram of the present utility model.

Mark among the figure: 1. shell, 2. pot body, 3. a pot body touches pad, 4. electromagnetic conversion operating circuit, 5. electrically conductive shield, 6. power ground.

The specific embodiment

Below in conjunction with principle schematic in the accompanying drawing and structural representation the utility model is further specified:

Fig. 1 is a kind of principle schematic of non-radiation electromagnetic oven, mainly comprise: shell (1), pot body (2), the pot body touches pad (3), electromagnetic conversion operating circuit (4), electrically conductive shield (5), power ground (6). in the accompanying drawings, power ground (6) touches pad (3) with electrically conductive shield (5) and pot body and is connected, pot body (2) fully touches a pot body and touches pad (3), and touch pad (3) and electrically conductive shield (5) by the pot body and form a complete closure shielding cover body, electronic circuit in radome produces electromagnetic radiation and just can shield with the shielding cover body of closure, again by the elimination of releasing of the ground wire in the power line (6) connection the earth.

Fig. 2 is the structural representation of a kind of non-radiation electromagnetic oven of designing of the operation principle according to Fig. 1, wherein shell (1) is the shell with plastics or the moulding of other materials processing and fabricating, the material making that pot body (2) is good with iron or other magnetic properties and outer surface resistance is little, its whole outer surface metal requires light, to touch pad (3) contact resistance the smaller the better with the pot body, the pot body touches the material that pad (3) is good with electric conductivity and outer surface resistance is little and makes, its outer surface metal requires light, be shaped as the disc shape, banded, wire, in strip or the point-like body one or more, the pot body touches pad (3) one ends and closely contacts with pot body (2), the other end is connected with electrically conductive shield (5), electromagnetic conversion operating circuit (4) is a circuit of selecting existing electromagnetic oven product for use, and this circuit is placed on electrically conductive shield (5) inside to fixedly mount, electrically conductive shield (5) be in the enclosure wall or outer wall with the electrically conductive shield of conductive material machine-shaping with shell, electrically conductive shield (5) material therefor is a 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, the function element of electromagnetic oven product is loaded in the electrically conductive shield (5), a space greater than the electromagnetic induction wire coil diameter is left in the electromagnetic induction wire coil position, upper end of electrically conductive shield (5), the radiator fan place, lower end of electrically conductive shield (5) leaves air vent, and power ground (6) adopts the single-phase three-jaw attaching plug of band ground wire to carry out the ground wire connection.

Can make ground wire (6), electrically conductive shield (5), pot body in the power line touch complete closure shielding cover body of formation between pad (3), the pot body (2) by above combination, electronic circuit in electrically conductive shield (5) produces electromagnetic radiation and just can shield with the shielding cover body of closure, and connect the earth eliminations of releasing, the purpose that external electromagnetic-radiation-free endangers when reaching electromagnetic oven work by the ground wire in the power line (6).

Claims

1. non-radiation electromagnetic oven, touch pad, electromagnetic conversion operating circuit, electrically conductive shield and power ground and form by shell, pot body, pot body, it is characterized in that: electrically conductive shield connects the pot body and touches pad and be connected with ground wire in the power line, and the pot body fully touches pot body and touches pad and touch pad and electrically conductive shield by the pot body and form a complete closure and shield cover body.

2. a kind of non-radiation electromagnetic oven according to claim 1, it is characterized in that: described electrically conductive shield be in the enclosure wall or outer wall with the electrically conductive shield of conductive material machine-shaping with shell, the function element of electromagnetic oven product is loaded in the electrically conductive shield, a space greater than the electromagnetic induction wire coil diameter is left in the electromagnetic induction wire coil position, upper end of electrically conductive shield, the radiator fan place, lower end of electrically conductive shield leaves air vent, and the electrically conductive shield material therefor is a 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.

3. a kind of non-radiation electromagnetic oven according to claim 1, it is characterized in that: described pot body touches the pad installation site, be on the outside or middle panel greater than the space of electromagnetic induction wire coil diameter of electrically conductive shield upper end, and can touch the pot body in the work, be shaped as one or more of disc shape, band shape, wire, strip or point-like body, material making, an end good with the surface conductance performance contact with the face that the pot body carries out small resistor, and the other end carries out being connected of small resistor with the conductive shield cover body.

4. a kind of non-radiation electromagnetic oven according to claim 1 is characterized in that: the material that pot body and function iron or other magnetic properties are good and outer surface resistance is little is made, and can and pot body touch and fill up the surface of carrying out small resistor and contact.

5. 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 of band ground wire to carry out the ground wire connection.