CN2834087Y

CN2834087Y - Electromagnetic leakage prevention structure for electromagnetic oven

Info

Publication number: CN2834087Y
Application number: CN 200520063673
Authority: CN
Inventors: 吕忠明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-30
Filing date: 2005-08-30
Publication date: 2006-11-01
Anticipated expiration: 2015-08-30

Abstract

The utility model relates to an electromagnetic leakage prevention structure, which can prevent electromagnetic leakage from the side part and the bottom of an electromagnetic oven coil disk. The electromagnetic leakage prevention structure comprises an electromagnetic oven body, an oven surface panel, a cooker and a coil disk. The inner part of an electromagnetic oven is provided with a metal frame body surrounding the coil disk, the upper part of the metal frame body is provided with an opening and the coil disk can be sealed in the frame body. The utility model attenuates the radiation intensity of the electromagnetic oven to a magnetic field of outside space from the periphery and the bottom of the coil disk, and simultaneously attenuates the interference of an electromagnetic field to the self electronic circuit of the electromagnetic oven. The utility model enables the electromagnetic oven to easily pass through the test requirement of Euramerican EMC and FCC.

Description

The anti-electromagnetic leakage structure that a kind of electromagnetic oven is used

Technical field:

The utility model relates to the household kitchen electric device technical field of utilizing electromagnetism heating principle to produce, refers in particular to the anti-electromagnetic leakage structure that a kind of electromagnetic oven device is used.

Background technology

At present, known electromagnetic oven is to utilize electromagnetic induction to produce the principle that eddy current makes the cooking pot tool self-heating, then can not produce electromagnetic leakage with avoiding, even some ultra-thin electromagnetic ovens be placed on conduct electricity and the metal table top of magnetic conduction on can make this table top that the phenomenon of serious heating is also arranged, as seen its electromagnetic radiation order of severity that leaks, the electromagnetic space that our use has not only been polluted in this electromagnetic radiation that leaks makes electromagnetic oven itself be difficult for also may causing the harm to human body simultaneously by the EMC electromagnetic compatibility test.Even the technical scheme that has some to prevent the electromagnetic oven electromagnetic radiation at present, they also only take measures to fail to prevent completely effectively electromagnetic radiation from the part.

Summary of the invention:

In order to overcome the electromagnetic field radiation important disadvantages that existing electromagnetic oven leaks, the utility model provides a kind of main scheme that prevents electromagnetic leakage from orientation such as electromagnetic oven sidepiece, bottoms, can prevent the electromagnetic oven electromagnetic radiation effectively.

The technical scheme that its technical problem that solves the utility model adopts is: in the inner metal framework that is opening around top of coil panel installation of electromagnetic oven coil panel is enclosed in the framework, metal framework opening part top edge prevents that near boiler face panel bottom the magnetic line of force from passing through the coil panel periphery and the bottom produces leakage.Wherein, the metal framework mainly is to absorb the magnetic line of force that leaks to make it become the loop of sealing if adopting the metal material of magnetic penetration capacity difference to make is to utilize the magnetic screen principle if adopt the good material of magnetic property.For preventing that further the magnetic line of force from passing through boiler face panel top and sidepiece and leaking, the metal framework can also be extended upward around boiler face panel periphery drawing and forming one becket again, frame is at electromagnetic oven boiler face panel outward flange.The metal framework can be that the conductivity good metal is made, these metals can be good steel-iron components of magnetic conductivity or coating, it also can be the similar material such as aluminium, copper of the non-magnetic material of magnetic penetration capacity difference, the metal framework also is provided with ground lead in position with on the ground wire that is connected to power supply in addition, thereby can make this part itself form the absorption that the loop is released to be increased the magnetic line of force that leaks because of the induced current that the action of a magnetic field produces with ground.

The beneficial effects of the utility model are: weaken greatly electromagnetic oven from coil panel periphery and bottom the magnetic field radiation intensity in space to external world, simultaneously also weakened the interference of electromagnetic field, made electromagnetic oven easier by American-European EMC, FCC test request to electromagnetic oven self electronic circuit.

Description of drawings:

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

Fig. 1 is the utility model embodiment 1 structural representation profile;

Fig. 2 is the utility model embodiment 1 metal frame body structure stereogram;

Fig. 3 is embodiment 2 structural representation profiles.

Embodiment:

Embodiment 1 explanation: see shown in accompanying drawing 1～accompanying drawing 2, coil panel is enclosed in the metal framework 5 in the inner metal framework 5 that is opening around top of coil bracket 4 installations of electromagnetic oven in this example, metal framework 5 opening part top edges are higher than coil panel 4 upper surfaces and near boiler face panel 2 lower surface, prevent that the magnetic line of force from passing through the coil panel periphery and the bottom produces leakage.Metal framework 5 can be similar material cold punching and drawings such as aluminium, stainless steel, iron material become with

Framework for the arbitrary shape of main projection body, for the ease of install and heat radiation also can be in the framework bottom and the framework periphery have size, quantity, through hole that shape is suitable, if metal framework 5 adopts ferrous materials or the similar material that magnetic conductions conduct electricity again to make, too concentrate and cause the bottom heating seriously can also or electroplate similar material such as one deck aluminium foil in metal framework 5 bottom sticky pads for avoiding the framework bottom magnetic line of force that leaks.Metal framework 5 also is provided with ground lead in position.Metal framework 5 can be to be drawn into circle, square, polygon, combination shape etc., and lower surface can be plane, concave surface or convex surface etc.

Embodiment 2 explanations: see shown in the accompanying drawing 3, this example is carried out on the basis of example one, in order to prevent that further the magnetic line of force is in the periphery of boiler face panel 2 and side's leakage on the upper side, periphery at boiler face panel 2 extends upward becket 7 of drawing and forming with metal framework 5 again, it is characterized in that forming the edges of a sealing around boiler face panel 2 periphery, becket 7 can by metal framework 5 succeeding stretch moulding circles, square, polygon, combination shape etc. (with metal framework 5 are one).Becket 7 can also pass through metallic conductor indirect contact pan 3 edges.

The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the protection range of the present utility model.

Claims

1, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven, comprise electromagnetic oven body (1), boiler face panel (2), pan (3), coil panel (4), it is characterized in that: coil panel (4) is enclosed in the framework in the inner metal framework (5) that is opening around top of coil panel (4) installation of electromagnetic oven.

2, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven according to claim 1 is characterized in that: described metal framework (5) can be that aluminium, stainless steel, ferrous metal material cold punching and drawing are circular, square, the framework of polygon, combination shape shape.

3, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven according to claim 1, it is characterized in that: described metal framework (5) periphery and bottom have suitable perforate or breach, and its shape can be circular, square, oval, polygon, composite entity, latticed.

4, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven according to claim 1 is characterized in that: described metal framework (5) bottom can be that a plane also can be concave surface, convex surface or combined shaped.

5, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven according to claim 1 is characterized in that: described metal framework (5) bottom interior surface can also be pasted one deck aluminium foil or electroplate the metal material of one deck magnetic property difference.

6, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven according to claim 1, it is characterized in that: metal framework (5) can also extend upward drawing and forming a becket (7), and frame is at electromagnetic oven boiler face panel outward flange.

7, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven according to claim 6, it is characterized in that: described becket (7) is the moulding of metal framework (5) cold stamping succeeding stretch, can also flange, crimping, spinning or be drawn into step once more in its oral area edge, top.

8, the anti-electromagnetic leakage structure used of a kind of electromagnetic oven according to claim 1, it is characterized in that: described metal framework (5) in position can also be provided with a ground lead and be connected on the earth connection of power supply.