CN102813466A - Electromagnetic heating safe energy-saving electric baking pan - Google Patents

Abstract

The electromagnetic heating safe and energy-saving electric heating grid provided by the present invention includes a shell, an upper heating plate and a handle, a hinge, a lower heating plate, and also includes the upper heating plate, the heat insulation plate and coil in the lower heating plate, the magnetic strip and the inner shell. Control circuit; the lower heating plate is supported above the shell, and the upper heating plate is supported on the shell by hinges. The rear of the lower heating plate is concentric with the lower heating plate and is fastened on the lower heating plate with tongue and groove; the coil is on a plane The upper part is evenly distributed in a spiral shape, respectively placed in the upper groove of the upper heating plate and the lower groove of the lower heating plate and electrically connected with the control circuit. The advantages and positive effects are: the coil generates eddy current The upper heating plate and the lower heating plate are heated up, and the surface of the plate can heat up rapidly after power-on; the thickness of the heat insulation plate is thin, and the gap between the heating plate and the coil is small, so the electromagnetic conversion efficiency is high, energy is saved, maintenance is convenient, and the service life is long. Isolation improves safety performance.

Description

Electromagnetic heating safe and energy-saving electric heating pan

technical field

The invention belongs to the field of kitchen appliances, and in particular relates to a safe and energy-saving electric pan for electromagnetic heating.

Background technique

The electric pan is also called the electric pancake oven, which is used for pancakes, such as pancakes, pancakes, pancakes, pancakes, pot stickers, fried buns, etc. It is suitable for hotels, leisure shops, restaurants or markets. Small electric pans Commonly known as electric baking pan and frying machine, it can complete the processing of the above-mentioned foods at home, and is currently entering the home as one of the home kitchen appliances.

The currently used electric heating pan includes a casing, a control circuit, an upper heating plate, a lower heating plate and heating elements, among which the heating element uses an electric heating alloy wire as a heating material, and uses mica soft board or asbestos board as an insulating material. The other type is the electric heating tube, which is cast in the upper heating plate and the lower heating plate or welded and embedded in the upper heating plate and the lower heating 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 upper heating plate and the lower heating plate at an appropriate temperature. Because the heating elements used in this type of electric heating pan are all resistive elements, not only the thermal efficiency is low, but also the heating element integrated with the electric heating is in close contact with the upper heating plate, the lower heating plate, and the shell, especially at high temperatures, the insulating material is prone to failure. Electric heating pans are live, which is prone to personal injury accidents, so this type of electric heating pans emphasizes the need for grounding wires; due to the complex environment in which they are used, and the extensive grounding wires for installation and operation are often useless, personal injury accidents are difficult to prevent.

Contents of the invention

The object of the present invention is to overcome the above-mentioned defects of the prior art, and provide an efficient and safe electromagnetic heating safe and energy-saving electric heating pan.

In order to achieve the above object, the electromagnetic heating safety and energy-saving electric heating pan provided by the present invention includes a shell, an upper heating plate and a handle, a hinge, a lower heating plate, and also includes the upper heating plate, the heat insulation plate and the coil in the lower heating plate, and the magnetic coil. strip and the control circuit in the shell; the lower heating plate is circular and supported above the shell, and the upper heating plate is circular and supported on the shell by a hinge behind the lower heating plate and the lower heating plate The plates are concentric and can be covered on the lower heating plate. The upper heating plate and the lower heating plate are covered with tenon grooves; the longitudinal sections of the upper heating plate and the lower heating plate are in the shape of “H” , the coils are evenly distributed in a helical shape on a plane, and are respectively placed in the upper groove of the upper heating plate and the lower groove of the lower heating plate and are electrically connected with the control circuit, and the control circuit controls The parts of each coil are relatively independent and can be controlled separately; the heat insulating plate is located between the coil and the upper heating plate and the lower heating plate, and a magnetic strip is installed on the outside of the coil; The upper groove is provided with a cover.

The safe and energy-saving electric heating pan for electromagnetic heating of the present invention, wherein the cross-sectional diameter of the wire used for the coil is 4.5 mm, which is wrapped by a layer of glass fiber wire with a diameter of 0.5 mm after stranding a plurality of high-temperature-resistant enamelled copper wires , the outer surface of the coil has a resin sealing layer.

The safe and energy-saving electric heating pan for electromagnetic heating of the present invention, wherein the heat insulation board is a glass fiber board or an asbestos board, the thickness of which is 2 mm in the coil part, and greater than 8 mm in the remaining parts around the coil.

The safe and energy-saving electric heating griddle for electromagnetic heating of the present invention, wherein the upper heating plate and the lower heating plate are made of ferromagnetic materials, such as magnetic stainless steel or cast iron.

The safe and energy-saving electric heating pan for electromagnetic heating of the present invention, wherein the hinge supporting the upper heating plate can not only rotate but also move up and down in translation.

The advantages and positive effects of the electromagnetic heating safe and energy-saving electric heating griddle of the present invention are: since the alternating magnetic field is generated by the coil to generate eddy current heating on the upper heating plate and the lower heating plate, the upper heating plate and the lower heating plate are heating bodies, so the surface of the plate after power-on Can heat up quickly. The insulation board is made of glass fiber board or asbestos board, the thickness of the coil part is thin, the gap between the upper heating plate, the lower heating plate and the coil is small, and the coil is equipped with a magnetic strip, which can effectively prevent the leakage of electromagnetic energy, so the electromagnetic conversion efficiency is high. , The thickness of the heat insulation plate around the coil in the upper heating plate and the lower heating plate is greater than 8mm, which has a good heat preservation effect, higher electrothermal conversion efficiency, more energy saving, convenient maintenance and long service life. At the same time, because the coil is sealed as a whole and there is a non-metallic heat insulation plate between the upper heating plate and the lower heating 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 a front sectional view of an electromagnetic heating safe and energy-saving electric heating pan of the present invention;

Detailed ways

The embodiments of the electromagnetic heating safety and energy-saving electric heating pan of the present invention will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1 , the electromagnetic heating safe and energy-saving electric heating pan provided by the present invention includes a casing 1, an upper heating plate 2 and a handle 8, a hinge 9, a lower heating plate 3, and also includes the upper heating plate 2 and the lower heating plate 3. Insulation plate 4, coil 5, magnetic strip 6 and control circuit 7 in the housing 1; the lower heating plate 3 is circular and supported above the housing 1, and the upper heating plate 2 is circular and supported on the hinge 9 The rear of the lower heating plate 3 on the housing 1 is concentric with the lower heating plate 3 and can be covered on the lower heating plate 3. The lids of the upper heating plate 2 and the lower heating plate 3 are provided with interlocking Tongue groove 10; the longitudinal sections of the upper heating plate 2 and the lower heating plate 3 are “H” shaped, and the coils 5 are evenly distributed in a helical shape on a plane, and are respectively placed on the concave surface of the upper heating plate 2. The slot is in the lower groove of the lower heating plate 3 and is electrically connected to the control circuit 7. The part of the control circuit 7 that controls each coil 5 is relatively independent and can be controlled separately. The heat insulating plate 4 is located on the coil 5 Between the upper heating plate 2 and the lower heating plate 3 , a magnetic strip 6 is installed on the outside of the coil 5 ; the upper groove of the upper heating plate 2 is provided with a cover 11 .

The cross-sectional diameter of the wire used in the coil 5 is 4.5 mm, which is wrapped by a layer of glass fiber wires with a diameter of 0.5 mm after stranding a plurality of high-temperature-resistant enamelled copper wires. The outer surface of the coil 5 has a resin The sealing layer is equipped with a magnetic strip 6 outside the coil, and the magnetic strip 6 shields the electromagnetic field, which can effectively prevent the leakage of electromagnetic energy and improve the efficiency of electromagnetic conversion.

The heat insulating board 4 is a glass fiber board or an asbestos board, and its thickness is 2 mm in the coil part, and the remaining parts around the coil are greater than 8 mm.

The upper heating plate 2 and the lower heating plate 3 are made of ferromagnetic materials, such as magnetic stainless steel or cast iron.

The shaft of the hinge 9 supporting the upper heating plate 2 is a cylinder, and the shaft hole is “O” shape, so the hinge 9 can rotate and move up and down, so that when the cake is cooked and expanded, the upper heating plate 2 can be lifted It will not be restrained and unable to expand, and the processed cake will be more puffy.

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

Since the alternating magnetic field is generated by the coil to generate eddy current heating on the upper heating plate and the lower heating plate, the upper heating plate and the lower heating plate are heating elements, and the surface of the plate can heat up rapidly after being energized. The insulation board is made of glass fiber board or asbestos board, the thickness of the coil part is only 2 mm, the gap between the upper heating plate, the lower heating plate and the coil is small, and the coil is equipped with a magnetic strip, which can effectively prevent the leakage of electromagnetic energy, so The electromagnetic conversion efficiency is high, and the thickness of the heat insulation plate around the coils in the upper heating plate and the lower heating plate is greater than 8 mm. The heat preservation effect is good, the electrothermal conversion efficiency is higher, the electric energy is saved, the maintenance is convenient, and the service life is long.

At the same time, because the coil is sealed as a whole and there is a non-metallic heat insulation plate between the upper heating plate and the lower heating 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 invention, and are not intended to limit the concept and scope of the present invention. Under the premise of not departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the scope of protection of the present invention, and the technical content claimed in the present invention has been fully described in the claims.

Claims (5)

1. an electromagnetism heats the energy-saving safe Electric baking pan; Comprise shell (1), upper heating disk (2) and handle (8), hinge (9), following heating plate (3), it is characterized in that: also comprise heat-insulating shield (4) and the middle control circuit 7 of coil (5), magnetic stripe (6) and shell (1) in said upper heating disk (2), the following heating plate (3); The said top of heating plate (3) said shell (1) down for circle is bearing in; To be bearing in following heating plate (3) rear on the said shell (1) through hinge (9) concentric and can cover on following heating plate (3) with said heating plate (3) down for circular for said upper heating disk (2), and the place of covering of said upper heating disk (2), following heating plate (3) is provided with the tongue-and-groove (10) that is interlocked; The longitudinal section of said upper heating disk (2), following heating plate (3) is " H " type; Said coil (5) is in one plane linear in the shape of a spiral to be uniformly distributed with; Be placed in respectively in the top groove of said upper heating disk (2) in the lower recess with said heating plate (3) down and and link to each other with said control circuit (7) electricity; Control circuit (7) is controlled relatively independent can the control separately of part of each coil (5); Said heat-insulating shield (4) is positioned between said coil (5) and said upper heating disk (2) and the said following heating plate (3), and magnetic stripe (6) is equipped with in the outside of said coil (5); The top groove of said upper heating disk (2) is provided with capping (11).

2. electromagnetism heating energy-saving safe Electric baking pan according to claim 1; It is characterized in that: the cross section diameter of the used lead of wherein said coil (5) is 4.5 millimeters; Close by the stranded back outside of the high temperature resistant enamel covered wire of multiply is that 0.5 millimeter glass wire parcel forms around one deck diameter, and the appearance of said coil (5) has resin-sealed layer.

3. electromagnetism according to claim 1 heating energy-saving safe Electric baking pan, it is characterized in that: wherein said heat-insulating shield (4) be glass mat or asbestos board, its thickness is 2 millimeters partly at said coil (5), coil (5) on every side remainder greater than 8 millimeters.

4. electromagnetism heating energy-saving safe Electric baking pan according to claim 1, it is characterized in that: wherein said upper heating disk (2), following heating plate (3) adopt ferrimagnet to process, and are magnetic stainless steel material or cast iron materials.

5. electromagnetism heating energy-saving safe Electric baking pan according to claim 1, it is characterized in that: wherein said hinge (9) can rotate and translation up and down.

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