Electric heating body structure

Abstract

An electric heating body structure comprises an electromagnetic coil and further comprises a fire-resistant disc made of fire clay or coil cement, the electromagnetic coil is pre-buried in the fire-resistant disc, a first socket is arranged on the outer wall of the fire-resistant disc, and a first terminal and a second terminal of the electromagnetic coil respectively extend out of the first socket. And an electric heating body for heating is arranged on the fire-resistant disc. And the electric heating body is wound on the fire-resistant disc. An assembling groove used for containing the electric heating body is formed in the fire-resistant disc. The outer wall of the assembling groove is provided with a second socket, and the third terminal and the fourth terminal of the electric heating body respectively extend out of the second socket. The first socket and the second socket are arranged in the same direction or in a staggered mode. The distance between the electromagnetic coil and the bottom of the cooking utensil can be greatly shortened, the height of the whole product is reduced, the electromagnetic heating efficiency is improved, and the heating effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric heating body structure. BACKGROUND

[0002] Chinese patent document publication number CN 220379745U discloses a heating device on January 23, 2024, comprising: a shell, the shell is formed with installation cavity in it;An electromagnetic heating assembly is installed in the installation cavity;And, an infrared heating assembly is installed in the installation cavity, located above the electromagnetic heating assembly, and at least partially overlaps with the electromagnetic heating assembly along the up-down direction;Wherein, the bottom surface of the infrared heating assembly and the top surface of the electromagnetic heating assembly, both at the overlapping place thereof define a heat insulation cavity.

[0003] This heating device in actual use, the upper end surface of the infrared heating assembly must be close to the cooktop panel connected with the bottom of the cooking utensil, in order to reduce heat leakage, at the same time, the electromagnetic heating assembly must be close to the cooktop panel as much as possible, in order to increase the electromagnetic coupling between the electromagnetic heating assembly and the bottom of the cooking utensil above the cooktop panel, therefore, the electromagnetic heating assembly is generally close to the bottom of the infrared heating assembly above it.

[0004] Because the temperature in the installation cavity is as high as about 600 DEG C when the infrared heating assembly is heated, after the setting of the heat insulation layer, the temperature outside the infrared heating assembly is still as high as about 150 DEG C;If the outer side of the infrared heating assembly directly contacts the electromagnetic heating assembly below it in a large area, it is very easy to cause the melting of the electromagnetic wire disc support, or cause the aging of the enameled wire insulation layer of the electromagnetic wire. Although increasing the thickness of the heat insulation layer can effectively reduce the temperature outside the infrared heating assembly, the electromagnetic heating assembly will gradually move away from the cooktop panel with the increase of the thickness of the heat insulation layer, resulting in the deterioration of the coupling between the electromagnetic heating assembly and the bottom of the cooking utensil, and the reduction of the electromagnetic heating efficiency. This condition makes users not very satisfied, so it needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an electric heating body structure with good heating effect, in order to overcome the deficiencies in the prior art.

[0006] An electric heating body structure designed for this purpose comprises an electromagnetic coil, characterized in that it further comprises a refractory disc made of refractory mortar or coil mortar, the electromagnetic coil is embedded in the refractory disc, a first socket is provided on the outer wall of the refractory disc, and the first and second wiring ends of the electromagnetic coil respectively extend out of the first socket.

[0007] Further, an electric heating body for heating is provided on the refractory disc.

[0008] Further, the electric heating body is coiled on the fireproof disc.

[0009] Further, the fireproof disc is provided with an assembling groove for placing the electric heating body.

[0010] Further, a second socket is arranged on the outer wall of the assembling groove, and the third and fourth wiring ends of the electric heating body respectively extend out of the second socket.

[0011] Further, the first socket and the second socket are arranged in the same direction or staggered.

[0012] Further, the first socket or the second socket is arranged in two left and right or two up and down and spaced.

[0013] Further, the electric heating body is an electric heating wire or an electric heating sheet.

[0014] Further, the electromagnetic coil is made of a metal band.

[0015] Further, the outer wall of the electromagnetic coil is spaced apart from the outer wall of the fireproof disc by 0.1-5mm.

[0016] The utility model discloses the above-mentioned technical scheme can greatly shorten the distance between the electromagnetic coil and the bottom of the cooking utensil, improve the efficiency of electromagnetic heating, improve the heating effect, and also reduce the height of the whole product, and reduce the cost.

[0017] In conclusion, the utility model has the characteristics of good heating effect. DRAWINGS

[0018] Figure 1 It is the exploded structural schematic view of an embodiment of the utility model.

[0019] Figure 2 It is the three-dimensional structural schematic view of the utility model after assembly.

[0020] Figure 3 It is the longitudinal section structural schematic view of the utility model.

[0021] Figure 4 It is the local cut structure schematic view of the utility model.

[0022] In the drawing: 1 is electric heating body, 1.1 is third wiring end, 1.2 is fourth wiring end, 2 is fireproof disc, 2.1 is assembling groove, 3 is electromagnetic coil, 3.1 is first wiring end, 3.2 is second wiring end. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and embodiments.

[0024] See Figures 1-4 An electric heating body structure, comprising an electromagnetic coil 3, further comprising a refractory disk 2 made of refractory mortar or coil mortar, the electromagnetic coil 3 is embedded in the refractory disk 2, the outer wall of the refractory disk 2 is provided with a first socket, and the first connecting end 3.1 and the second connecting end 3.2 of the electromagnetic coil 3 respectively extend out of the first socket.

[0025] In this embodiment, the coil mortar has high high-temperature resistance, and the heat-resistant temperature can reach about 1550℃, and the refractory temperature range of corundum coil mortar is 1580-1770℃.

[0026] The coil mortar can remain stable in a high-temperature environment and will not easily fail, has high strength, high density and high insulation, etc., can play an insulating role between the electromagnetic coils 3, prevent turn-to-turn short circuit or discharge, and the coil mortar can provide reliable protection and stable performance in a high-temperature environment.

[0027] The refractory mortar is mainly composed of refractory powder, binder and additive, and is usually used for building refractory bricks or refractory materials, and has the characteristics of remaining stable in a high-temperature environment. The main components of the refractory mortar include kaolinite, hydrous kaolinite and hydromica, etc., which have high refractoriness and volume stability, and good resistance to rapid cooling and heating.

[0028] The refractory disk 2 is provided with an electric heating body 1 for heating.

[0029] In this embodiment, the electric heating body is powered by electric current, and the temperature is directly raised by the metal wire to achieve the purpose of heating.

[0030] The electric heating body 1 is wound on the refractory disk 2.

[0031] The refractory disk 2 is provided with an assembly groove 2.1 for placing the electric heating body 1.

[0032] The outer wall of the assembly groove 2.1 is provided with a second socket, and the third connecting end 1.1 and the fourth connecting end 1.2 of the electric heating body 1 respectively extend out of the second socket.

[0033] The first socket and the second socket are arranged in the same direction or staggered.

[0034] In this embodiment, since the height of the refractory disk 2 can be less than 1 cm, the first socket and the second socket can be arranged in the same direction or staggered according to actual needs, which is convenient for safe and reliable wiring in the later stage to ensure the quality of wiring.

[0035] The first socket or the second socket is arranged in two left and right or two up and down and spaced.

[0036] The electric heating body 1 is an electric heating wire or an electric heating sheet.

[0037] The electromagnetic coil 3 is wound by a metal band.

[0038] In the embodiment, the electromagnetic coil 3 can be wound by a bare copper band.

[0039] The outer wall of the electromagnetic coil 3 and the outer wall of the refractory plate 2 keep a distance of 0.1-5mm.

[0040] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0041] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electric heating body structure comprising an electromagnetic coil (3), characterized in that The application further comprises a refractory plate (2) made of refractory mortar or coil mortar, wherein the electromagnetic coil (3) is embedded in the refractory plate (2), and a first socket is arranged on the outer wall of the refractory plate (2), and the first connecting end (3.1) and the second connecting end (3.2) of the electromagnetic coil (3) respectively extend out of the first socket.

2. An electric heater structure according to claim 1, characterised in that The refractory plate (2) is provided with an electric heating element (1) for heating.

3. An electric heater structure according to claim 2, characterised in that The electric heating element (1) is coiled on the refractory plate (2).

4. An electric heater structure according to claim 2, characterised in that The refractory plate (2) is provided with an assembly groove (2.1) for placing the electric heating element (1).

5. An electric heater structure according to claim 4, characterised in that The outer wall of the assembly groove (2.1) is provided with a second socket, and the third connecting end (1.1) and the fourth connecting end (1.2) of the electric heating element (1) respectively extend out of the second socket.

6. An electric heater structure according to claim 5, characterised in that The first socket and the second socket are arranged in the same direction or staggered.

7. An electric heater structure according to claim 6, characterised in that The first socket or the second socket is arranged in two left and right or two up and down and spaced.

8. The electric heater structure according to claim 2, characterized in that The electric heating element (1) is an electric heating wire or an electric heating sheet.

9. The electrical heater structure of claim 1 wherein The electromagnetic coil (3) is made of a metal band.

10. The electrical heater structure of claim 1 wherein The outer wall of the electromagnetic coil (3) and the outer wall of the refractory plate (2) maintain a spacing of 0.1-5 mm.

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