CN203059421U - Electromagnetic heating safe doughnut machine - Google Patents

Abstract

The electromagnetic heating safety donut machine provided by the utility model includes a base, an upper heating plate and a handle, a special hinge, a lower heating plate and heat insulation plates and coils, a magnetic strip and a control circuit in the upper and lower heating plates; the lower heating plate Supported on the base, the upper heating plate is supported behind the lower heating plate through a special hinge and is concentric with the lower heating plate and can be covered on the lower heating plate. The covering surfaces of the upper and lower heating plates are provided with donut grooves; One plane is helically coiled, respectively placed in the grooves of the upper and lower heating plates and electrically connected to the control circuit. Its advantages and positive effects are: the coils generate eddy currents to heat up the upper and lower heating plates, After electrification, the surface of the disk can heat up quickly; the thickness of the heat insulation plate is thin, and the gap between the heating disk and the coil is small, so the electromagnetic conversion efficiency is high, energy is saved, maintenance is convenient, and the service life is long. Due to the complete isolation of electric heat, the safety performance is improved.

Description

Electromagnetic Heating Safety Donut Maker

technical field

The utility model belongs to the field of kitchen appliances, in particular to an electromagnetic heating safety donut machine. the

Background technique

The donut machine is also called the donut machine, da da ring machine and da da pie machine. It is a professional food machinery equipment for making donuts. It is a good tool for people who like to make pastries or shop owners. Donut machine It is suitable for places such as hotels, leisure stores, restaurants, supermarkets or bazaars, and is currently entering the family as one of the household kitchen appliances. the

The electric heating donut machine currently used includes a base, a control circuit, an upper heating plate, a lower heating plate and heating elements. Among them, the heating element uses an electric heating alloy wire as a heating material, and uses a mica soft board or an asbestos board as an insulating material. In the upper heating plate and the lower heating plate; the other type is the electric heating tube, the electric heating tube 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 donut machine 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 upper heating plate, the lower heating plate, and the shell, especially the insulating material at high temperature It is easy to fail to cause the donut machine to be electrified, and it is easy to cause personal injury accidents. Therefore, this type of electric donut machine emphasizes the grounding wire; due to the complicated use environment, and the installation and operation of extensive grounding wires are often useless, personal injury accidents Difficult to put an end to. the

Utility model content

The purpose of this utility model is to overcome the above-mentioned defects of the prior art, and to provide an efficient and safe electromagnetic heating safety donut machine. the

In order to achieve the above purpose, the electromagnetic heating safety donut machine provided by the utility model includes a base, an upper heating plate and a handle, a hinge, a lower heating plate, and also includes a thermal insulation plate and a coil in the upper heating plate and the lower heating plate , the magnetic strip and the control circuit in the base, which are characterized in that: an alternating magnetic field is generated by a coil to generate eddy current heating on the upper heating plate and the lower heating plate; the lower heating plate is supported on the base in a rectangular shape, and the upper heating plate The plate is rectangular and supported on the back of the lower heating plate through a hinge, concentric with the lower heating plate and can be covered on the lower heating plate. The covering surfaces of the upper heating plate and the lower heating plate are provided with donut grooves; The longitudinal section of the upper heating plate is in an inverted “Π” shape, and the longitudinal section of the lower heating plate is in a “Π” shape. The coils are helically coiled on a plane, and are respectively placed on the upper concave of the upper heating plate. The slot and the lower groove of the lower heating plate are electrically connected to the control circuit, and the control circuit controls each coil part relatively independently and can be controlled separately; the heat insulating plate is located between the coil and the upper heating plate Between the coil and the lower heating plate, a magnetic strip is installed on the outside of the coil; the upper groove of the upper heating plate is provided with a cover. the

The utility model electromagnetic heating safety donut machine, wherein the cross-sectional diameter of the wire used for the coil is 4.5 mm, and 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. As a result, the outer surface of the coil has a resin sealing layer. the

The electromagnetic heating safety donut machine of the utility model, wherein the heat insulating board is a glass fiber board or an asbestos board, and its thickness is less than 3 mm. the

The electromagnetic heating safety donut machine of the utility model, wherein the upper heating plate and the lower heating plate are made of magnetic stainless steel or cast iron. the

The advantages and positive effects of the electromagnetic heating safety donut machine of the utility model are that: since the eddy current is generated by the coil to heat up 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 and the sweet The ring groove can heat up quickly. The heat insulation board is made of glass fiber board or asbestos board. Its thickness is thin, and the gap between the upper heating plate, the lower heating plate and the coil is small. The coil is equipped with a magnetic strip, which can effectively prevent the leakage of electromagnetic energy, so the electromagnetic conversion efficiency is higher. 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 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

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

Description of drawings

Fig. 1 is the left sectional view of electromagnetic heating safety donut machine of the present utility model;

Fig. 2 is the top view of the electromagnetic heating safety donut machine of the present invention after it is removed from the upper heating plate;

Detailed ways

Embodiments of the electromagnetic heating safety donut machine of the present utility model will be described in detail below in conjunction with the accompanying drawings. the

Referring to Fig. 1 and Fig. 2, the electromagnetic heating safety donut machine provided by the utility model includes a base 1, an upper heating plate 2 and a handle 3, a hinge 4, a lower heating plate 5, and also includes the upper heating plate 2 and the lower heating plate The heat insulating plate 6 in the heating plate 5, the coil 7, the magnetic strip 8 and the control circuit 9 in the base 1 are characterized in that: the coil 7 generates an alternating magnetic field to cause the upper heating plate 2 and the lower heating plate 5 to generate eddy current heat; The lower heating plate 5 is supported on the base in a rectangular shape, and the upper heating plate 2 is supported on the back of the lower heating plate 5 through a hinge 4. It is concentric with the lower heating plate 5 and can be covered on the lower heating plate 5. Above, the covering surfaces of the upper heating plate 2 and the lower heating plate 5 are provided with donut grooves 10; Π" type, the coil 7 is helically coiled on one plane, respectively placed in the upper groove of the upper heating plate 2 and the lower groove of the lower heating plate 5 and connected with the control circuit 9 are electrically connected, and the control circuit 9 controls the part of each coil 7 to be relatively independent and can be controlled independently; 7 is equipped with a magnetic strip 8; the upper groove of the upper heating plate 2 is provided with a cover 11. the

The electromagnetic heating safety donut machine of the utility model, wherein the section diameter of the wire used for the coil 7 is 4.5 mm, and a layer of glass fiber wire with a diameter of 0.5 mm is tightly wound on the outside after twisted by multiple strands of high temperature resistant enamelled copper wire Wrapped, the outer surface of the coil 7 has a resin sealing layer. the

The electromagnetic heating safety donut machine of the utility model, wherein the heat insulating board 6 is a glass fiber board or an asbestos board, and its thickness is less than 3 mm. the

The electromagnetic heating safety donut machine of the utility model, wherein the upper heating plate 2 and the lower heating plate 5 are made of magnetic stainless steel or cast iron. the

In the embodiment of the electromagnetic heating safety donut machine of the utility model, the temperature control part in the control circuit is similar to the electric heating donut machine in the prior art, and the temperature controller controls the on-off of the circuit or the current passing through the size of. The circuit of the control 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. the

Since the alternating magnetic field generated by the coil causes the upper heating plate and the lower heating plate to generate eddy current heating, the upper heating plate and the lower heating plate are heating elements, and the surface of the plate and the donut slot can heat up rapidly after being energized. The heat insulation board is made of glass fiber board or asbestos board. Its thickness is thin, and the gap between the upper heating plate, the lower heating plate and the coil is small. The coil is equipped with a magnetic strip, which can effectively prevent the leakage of electromagnetic energy, so the electromagnetic conversion efficiency is higher. More energy saving, easy maintenance and long service life. the

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

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. the

Claims (4)

1. an electromagnetism heats safe baked donut machine, comprise base (1), upper heating disk (2) and handle (3), hinge (4), following heating plate (5), also comprise the control circuit (9) in heat-insulating shield (6), coil (7), magnetic stripe (8) and the base (1) in described upper heating disk (2) and the following heating plate (5), it is characterized in that: produce alternating magnetic field by coil (7) and make upper heating disk (2), following heating plate (5) produce eddy-current heating; Described down heating plate (5) is on rectangle the is bearing in described base (1), described upper heating disk (2) is concentric and can cover on heating plate (5) down with described heating plate (5) down for rectangle is bearing in described down heating plate (5) rear by hinge (4), and the face of covering of described upper heating disk (2), time heating plate (5) is provided with baked donut groove (10); The longitudinal section of described upper heating disk (2) is down " ∏ " type, the longitudinal section of heating plate (5) is " ∏ " type down, described coil (7) is line formula coiling in the shape of a spiral in one plane, be placed in respectively in the top groove of described upper heating disk (2) in the lower recess with described heating plate (5) down and with described control circuit (9) electricity and link to each other, control circuit (9) is controlled relatively independent can the control separately of part of each coil (7); Described heat-insulating shield (6) is positioned between described coil (7) and described upper heating disk (2) and the described following heating plate (5), and magnetic stripe (8) is equipped with in the outside of described coil (7); The top groove of described upper heating disk (2) is provided with capping (11).

2. electromagnetism according to claim 1 heats safe baked donut machine, it is characterized in that: the cross section diameter of the used lead of wherein said coil (7) 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 described coil (7) has resin-sealed layer.

3. electromagnetism according to claim 1 heats safe baked donut machine, it is characterized in that: wherein said heat-insulating shield (6) is glass mat or asbestos board, and its thickness is less than 3 millimeters.

4. electromagnetism according to claim 1 heats safe baked donut machine, it is characterized in that: wherein said upper heating disk (2), following heating plate (5) adopt magnetic stainless steel or cast iron materials to make.

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