CN203263121U - Electromagnetic heating safe pancake stove - Google Patents

Abstract

The utility model electromagnetic heating safety pancake oven comprises a shell, a frying plate, and also includes a heat insulating plate, a coil, a magnetic strip and a control circuit in the shell; the upper surface of the frying plate is a round convex surface supported above the shell, The coil is helically coiled on a plane, the coil is fixedly installed under the bottom surface of the frying plate and is electrically connected to the control circuit, and the heat insulating plate is located between the coil and the frying plate , a magnetic strip is installed radially below the coil, its advantages and positive effects are: the coil generates eddy currents to heat up the frying plate, the frying plate is a heating element, the thermal inertia is small, the plate surface can heat up rapidly after electrification, and the thickness of the heat insulation plate Thin, the gap between the frying plate and the coil is small, so the electromagnetic conversion efficiency is high, more energy is saved, the maintenance is convenient, the service life is long, and the safety performance is improved due to the complete isolation of the electric heat.

Description

Induction Heating Safe Pancake Oven

technical field

The utility model belongs to the field of kitchen appliances, in particular to a safe pancake oven using electromagnetic heating.

Background technique

Pancakes originated very early and are one of the traditional Chinese foods, especially in Shandong. It is made by grinding whole grains into batter, pouring it into pans, spreading it flat with pancake pans and baking it. Because pancakes are made of raw grain without removing the bran, they are rich in nutrition, crispy and soft to eat, not easy to deteriorate, easy to store and carry, and eaten with side dishes, they have a unique flavor. It is a very distinctive local food. Recently, some people believe that eating pancakes requires a long time of chewing, so it can promote body fluids and stomach, increase appetite, promote facial nerve movement, help maintain the health of vision, hearing and olfactory nerves, and slow down aging. It can be regarded as a health food.

Now the processing of pancakes has bid farewell to the traditional open flame baking method, and various electric pancake ovens have appeared, which are suitable for hotels, leisure shops, restaurants or bazaars, etc., and are currently entering the family and becoming one of the home kitchen appliances.

The currently used electric pancake oven includes a casing, a control circuit, a frying plate and a heating element. One type of heating element is an electric heating alloy wire as a heating material, and a mica soft board or an asbestos board is used as an insulating material and placed under the frying plate; The first type is the electric heating tube, which is cast in the iron frying plate or welded and embedded under the iron frying plate. The heating element is connected to the control circuit, and the control circuit controls the on-off of the current in the heating element or the magnitude of the passing current through the temperature controller, so as to keep the temperature of the frying plate at an appropriate temperature. Because the heating elements used in this type of electric pancake oven are all resistive elements, not only the thermal efficiency is low, but also the heating element with integrated electric heating is in close contact with the frying plate and the shell, especially at high temperatures, the insulating material is prone to failure and the frying plate is charged. Personal injury accidents are prone to occur.

Utility model content

The purpose of the utility model is to overcome the above-mentioned defects of the prior art, and provide a high-efficiency, safe electromagnetic heating safety pancake oven.

In order to achieve the above purpose, the electromagnetic heating safety pancake oven provided by the utility model includes a shell, a frying plate, a heat insulation plate in the shell, a coil, a magnetic strip, and a control circuit; Eddy current heating, the frying plate is the heating body, the upper surface of the frying plate is a round convex surface supported above the shell, the coil is helically coiled on a plane, and the coil is fixedly installed on the frying plate The bottom of the plate is electrically connected to the control circuit, the heat insulating plate is located between the coil and the frying plate, and a magnetic strip is installed radially under the coil.

The utility model is an electromagnetic heating safety pancake oven, wherein the section diameter of the wire used for the coil is 4.5mm, which is wrapped by a glass fiber tube covered with glass fiber braiding after stranding a plurality of high temperature resistant enamelled copper wires. The outer surface of the coil has a resin sealing layer.

The utility model has an electromagnetic heating safety pancake oven, wherein the heat insulating board is a glass fiber board or an asbestos board, the thickness of which is 3 mm above the coil, and the remaining part around the coil is greater than 8 mm.

The utility model has an electromagnetic heating safety pancake oven, wherein the frying plate is made of ferromagnetic material, which is magnetic stainless steel material or cast iron material.

The utility model has the advantages and positive effects of the electromagnetic heating safe pancake oven: since the alternating magnetic field is generated by the coil, the frying plate generates eddy current heat, and the frying plate is a heating body, so the plate surface can heat up rapidly after being energized. The heat insulation board is made of glass fiber board or asbestos board. The thickness of the upper part of the coil is thin, and the gap between the coil and the frying plate is smaller. The outside of the coil is equipped with a magnetic strip, so the electromagnetic conversion efficiency is high. The thickness of the rest of the heat insulation plate under the frying plate Larger than 8 mm, good heat preservation effect, higher electrothermal conversion efficiency, more energy saving, easy maintenance and long service life. At the same time, because the coil is sealed as a whole and there is a non-metallic heat-insulating plate between the coil and the frying plate, the electric heat is completely isolated, so the safety performance is greatly improved and the personal safety of the user is ensured.

The following will describe in detail with reference to the accompanying drawings in conjunction with the embodiments.

Description of drawings

Fig. 1 is the front sectional view of the utility model electromagnetic heating safety pancake oven;

Detailed ways

The embodiments of the electromagnetic heating safety pancake oven of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, the electromagnetic heating safety pancake oven provided by the utility model includes a shell 1, a frying plate 2, and an insulating plate 3 in the shell 1, a coil 4, a magnetic strip 5, and a control circuit 6; The alternating magnetic field causes the frying plate 2 to generate eddy current heating, and the frying plate 2 is a heating element; the upper surface of the frying plate 2 is a round convex surface supported above the shell 1, and the frying plate 2 is made of ferromagnetic material, such as magnetic stainless steel, cast iron material, the coil 4 is helically coiled on a plane, the coil 4 is fixedly installed under the bottom surface of the frying plate 2 and is electrically connected with the control circuit 6, and the heat insulating plate 3 is located on the Between the coil 4 and the frying plate 2, a magnetic strip 5 is installed radially below the coil 4, and the magnetic strip 5 can effectively prevent leakage of electromagnetic energy and improve electromagnetic conversion efficiency.

The cross-sectional diameter of the wire used in the coil 4 is 4.5 mm, which is made of strands of high-temperature-resistant enamelled copper wires twisted and wrapped with a glass fiber tube covered with glass fiber braiding. The outer surface of the coil 4 has a resin sealing layer.

The heat insulating board 3 is a glass fiber board or an asbestos board, the thickness of which is 3mm above the coil 4, and the rest around the coil 4 is greater than 8mm.

In the embodiment of the electromagnetic heating safety pancake oven of the present invention, the temperature control part in the control circuit is similar to the electric pancake oven of the prior art, and the temperature controller is used to control the on-off of the circuit or the size of the current passing through; The circuit of the coil is similar to the control circuit widely used in the prior art induction cooker, and can be simplified in the multi-stage regulation and detection circuit of the output power according to actual needs.

Since the alternating magnetic field generated by the coil causes the frying plate to generate eddy current heating, the frying plate is a heating body, so the plate surface can heat up rapidly after being energized. The heat insulation board is made of glass fiber board or asbestos board, the thickness of the upper part of the coil is only 3 mm, the gap between the coil and the frying plate is smaller, and the outside of the coil is equipped with a magnetic strip, which can effectively prevent the leakage of electromagnetic energy, so the electromagnetic conversion efficiency is high ; In addition, the thickness of the heat insulation plate in the rest of the frying plate is greater than 8 mm, and the heat preservation effect is good, so the electrothermal conversion efficiency is higher, more energy is saved, and it is easy to maintain and has a long service life.

At the same time, because the coil is sealed as a whole and there is a non-metallic heat-insulating plate between the coil and the frying plate, the electric heat is completely isolated, so the safety performance is greatly improved and the personal safety of the user is ensured.

The above-mentioned embodiments are only descriptions of preferred implementations of the present utility model, and are not intended to limit the concept and scope of the present utility model. Under the premise of not departing from the design concept of the present utility model, various modifications and improvements made by ordinary persons in the art to the technical solution of the present utility model should fall into the protection scope of the present utility model, and the technology claimed by the utility model The contents are all described in the claims.

Claims (4)

1. the safe thin pancake stove of Electromagnetic Heating, comprise shell (1), fry in shallow oil plate (2), also comprises heat-insulating shield (3) and coil (4), magnetic stripe (5) and control circuit (6) in described shell (1); it is characterized in that: produce alternating magnetic field by described coil (4) and make the described plate (2) of frying in shallow oil produce eddy-current heating, frying in shallow oil plate (2) is exactly heater, the described upper surface of frying in shallow oil plate (2) is bearing in the top of shell (1) for the convex surface of circle, described coil (4) in one plane is the spiral form coiling, described coil (4) is fixedly mounted on describedly to be fried in shallow oil the below of plate (2) bottom surface and is connected with described control circuit (6) electricity, described heat-insulating shield (3) is positioned at described coil (4) and described frying in shallow oil between plate (2), the following magnetic stripe (5) that radially is equipped with of described coil (4).

2. the safe thin pancake stove of Electromagnetic Heating according to claim 1, it is characterized in that: the cross section diameter of wherein said coil (4) wire used is 4.5 millimeters, have fiberglass braided fiberglass pipe parcel to form by the stranded rear outer surface cover of the high temperature resistant enamel covered wire of multiply, the appearance of described coil (4) has resin-sealed layer.

3. the safe thin pancake stove of Electromagnetic Heating according to claim 1 is characterized in that: the wherein said plate (2) of frying in shallow oil adopts ferrimagnet to make, and is magnetic stainless steel material or cast iron materials.

4. the safe thin pancake stove of Electromagnetic Heating according to claim 1, it is characterized in that: wherein said heat-insulating shield (3) is glass mat or asbestos board, its thickness is 3 millimeters at described coil (4) upper part, at coil (4) peripheral part thickness greater than 8 millimeters.

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