CN219264374U

CN219264374U - Electromagnetic heating appliance

Info

Publication number: CN219264374U
Application number: CN202221001975.2U
Authority: CN
Inventors: 谢勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2023-06-27
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses an electromagnetic heating appliance, comprising: the heating plate, the heat insulating piece, the supporting piece, the power wire, the upper shell, the lower shell assembled with the upper shell to form a cavity, and the coil plate and the fan which are arranged in the cavities of the upper shell and the lower shell and are electrically connected with the control board through wires; the heating plate is supported by the supporting piece and arranged outside the upper shell, the upper part of the coil plate is not contacted with the upper shell, containers made of different materials can be placed on the top surface of the heating plate, heat is generated by utilizing vortex under the action of alternating magnetic fields of the coil plate, and then the heat is transferred to the container, the heat insulating piece is arranged between the upper shell and the heating plate, and the upper side and the lower side of the heat insulating piece are in clearance fit with the upper shell and/or the heating plate and used for blocking the heat transfer of the heating plate. The utility model aims to effectively solve the problem that the high-temperature heating plate possibly causes damage to appliances and/or devices when the electromagnetic heating is used for containers made of different materials through the heat insulation piece arranged between the upper shell and the heating plate, and further widely apply the electromagnetic heating technology to products of different varieties.

Description

Electromagnetic heating appliance

Technical Field

The utility model relates to the technical field of heating equipment, in particular to an electromagnetic induction heating appliance which heats containers made of different materials after a heating plate generates heat by using an alternating magnetic field.

Background

Electromagnetic induction heating (Electromagnetic heating abbreviation: EH), hereinafter referred to as electromagnetic heating.

The existing electromagnetic heating products are limited by the fact that the electromagnetic heating products can be heated only by a container made of magnetic materials, such as non-metallic materials like glass and ceramic, or containers made of metallic materials like aluminum and copper, so that the application range of the electromagnetic heating technology is greatly limited; in order to apply electromagnetic heating to containers made of different materials, a heating structure of a non-magnetic induction cooker on an electromagnetic oven is adopted in a non-magnetic induction cooker of patent number CN00209814.8, a multifunctional electromagnetic oven of patent number CN202021618265.5 and the like are provided, but various solutions are provided, but related technical solutions are that an additional and spliced set of devices are adopted on the existing electromagnetic oven and electromagnetic range, so that products still stay in the category of the electromagnetic oven and the electromagnetic range, the incompleteness and the operation complexity of the spliced devices are not adapted to the requirements of time development, and more importantly, the prior art solutions lack heat insulation treatment on a high-temperature heating plate in a limited space, so that the device is influenced by high temperature, performance and quality problems and even personal and property damage problems are very easy to occur.

Disclosure of Invention

The utility model aims to effectively solve the problem that the high-temperature heating plate possibly causes damage to appliances and/or devices when the electromagnetic heating is used for containers made of different materials through the heat insulation piece arranged between the upper shell and the heating plate, and further widely apply the electromagnetic heating technology to products of different varieties.

The technical scheme of the utility model is an electromagnetic heating appliance, which is characterized by comprising:

the heating plate, the heat insulating piece, the supporting piece, the power wire, the upper shell, the lower shell assembled with the upper shell to form a cavity, and the coil plate and the fan which are arranged in the cavities of the upper shell and the lower shell and are electrically connected with the control board through wires;

the heating plate is a device which is supported and arranged outside the upper shell by the supporting piece, the upper part of the coil plate is not contacted with the upper shell, the top surface of the heating plate is used for placing containers made of different materials, heat is generated by utilizing eddy current under the action of an alternating magnetic field of the coil plate, and then the heat is transferred to the containers;

the heat insulation piece is arranged between the upper shell and the heating disc, and the upper side and the lower side of the heat insulation piece are in clearance fit with the upper shell and/or the heating disc and are used for blocking heat transfer of the heating disc;

the coil panel is a device which is positioned below the heating panel and can convert alternating current into alternating magnetic field so that the heating panel generates heat under the action of eddy current.

Further, the electromagnetic heating device is characterized in that the heating plate is supported by the supporting piece and does not contact with the upper shell, is fixedly connected or movably connected with the upper shell, and the top surface is flush with the upper surface of the upper shell or lower than or higher than the upper surface of the upper shell, and is made of one or more magnetic conductive metal or nonmetal materials, and is made into a flat plate or concave body or convex body independently or compositely.

Further, the electromagnetic heating device is characterized in that the upper side and the lower side of the heat insulating piece are in clearance fit with the upper shell and the heating disc, or only one side of the heat insulating piece is in clearance fit with the upper shell or the heating disc, or a partial area of the heat insulating piece is in clearance fit with the upper shell and/or the heating disc, or the heat insulating piece is arranged and filled between the heating disc and/or the upper shell, and one or more devices which are made of one or more high-temperature resistant materials with low heat conductivity coefficients and made of one or more components are made of composite materials.

Further, the electromagnetic heating device is characterized in that the upper shell is formed by a single non-magnetic material, or a combination of a plurality of non-magnetic materials, or a combination of a magnetic material and a non-magnetic material, the upper shell is provided with a concave cavity for installing a heating plate and/or a heat insulation piece and a supporting piece, or a step or a boss for directly or indirectly installing the heating plate, and the side surface of the concave cavity is provided with a notch or a through groove or a through hole for radiating, cleaning and draining in one direction or a plurality of directions.

The utility model has the beneficial effects that the combined heat insulation technology of the air and the heat insulation member is arranged in the limited space between the heating plate and the coil plate, so that the problem that appliances and/or devices possibly caused by the high-temperature heating plate are damaged when containers made of different materials are heated by utilizing electromagnetism is effectively solved, the electromagnetic heating technology is subdivided and applied to products of more varieties, such as electric rice cookers, health preserving kettles, electric pressure cookers, electric steamer, electric stewpots, electric heating multipurpose cookers and the like, more electromagnetic heating products with different appearances and functions are provided for markets, and the consumption demands of different layers are met on the products of the same variety by matching containers made of different materials. The remaining effects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment flat heat-generating plate below the upper surface of an upper shell;

FIG. 2 is a schematic cross-sectional view of an embodiment flat heat-generating plate above the upper surface of the upper shell;

FIG. 3 is a schematic cross-sectional view of an embodiment concave heat-generating disk flush with the upper surface of the upper shell.

Reference numerals: 1. an upper case; 11. a decoration piece; 2. a lower case; 3. a heat insulating member; 4. a support; 5. a heating plate; 6. a control board; 7. a heating plate; 8. a blower; 9 concave cavities; 91. a boss; 10. a cavity; A. the upper surface of the upper shell; B. and (5) conducting wires.

The specific embodiment is as follows:

embodiments of the present utility model will be described in detail below with reference to the drawings, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar devices or devices having the same or similar functions, and the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientation or positional relationship, based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus are not to be construed as limiting the utility model.

The description of the utility model refers to the conceptual illustration. And (3) fixedly connecting: means a connection mode of reliably and firmly fixing one part on another part by adopting a mechanical mode or a process; and (3) movably connecting: means a connection mode which is easy to disassemble and assemble one part and another part without any tool; and (3) electric connection: refers to the collection of all electrical circuits in an electrical product, including power connection components such as power plugs, power connection terminals, etc., power lines, internal conductors, internal connection components, etc., while the narrow sense of electrical connection refers only to all ways of connecting different conductors inside the product; and (3) a control panel: the induction cooker is characterized in that in a traditional induction cooker, an IGBT, a circuit board with a programmed IC and a circuit board for man-machine interaction and functional operation are arranged. The terms and terms such as "power cord", "fan", "wire", "container", "magnetic conductive", "notch", "through hole", "through slot" and the like should be construed broadly in connection with the description herein based on known technology, unless explicitly specified and limited otherwise. Therefore, the meaning of the above terms and terminology in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

An electromagnetic heating appliance of the present utility model will be described below with reference to fig. 1 to 3.

The technical scheme of the utility model is that as shown in fig. 1 to 3, the electromagnetic heating appliance is characterized by comprising:

the heating plate, the heat insulating piece, the supporting piece, the power line, the upper shell, the lower shell assembled with the upper shell to form a cavity, and the coil plate and the fan which are arranged in the cavities of the upper shell and the lower shell and are electrically connected with the control board through wires.

The heating plate is supported and fixed or movably arranged outside the upper shell by a supporting piece, the top surface of the heating plate is flush with the upper surface of the upper shell, or is lower than or higher than the upper surface of the upper shell, the heating plate is positioned above the coil plate and is not in contact with the upper shell, the top surface of the heating plate is used for placing containers made of different materials, heat is generated by utilizing vortex under the action of an alternating magnetic field of the coil plate, the heat is transferred to the containers, and one or more magnetic conductive metal or nonmetal materials are used for singly manufacturing or compounding the flat plate, concave body or convex body devices; further, the heating plate is mounted and supported in the concave cavity or on the upper shell step and the boss by the supporting piece, is positioned above the coil plate and is not in contact with the upper shell, is movably connected or fixedly connected with the heat insulation piece and/or the supporting piece and/or the upper shell, and generates heat by utilizing vortex under the action of alternating magnetic field and transfers the heat to the magnetic conduction device of the container, so that the container placed on the heating plate can be heated by the heating plate no matter the container is made of magnetic conduction material or non-magnetic conduction metal or non-metal material, and the container made of magnetic conduction material can fully absorb the alternating magnetic field which does not act on the heating plate, thereby improving the heating speed of the container.

The heat insulation piece is arranged between the upper shell and the heating disc, is made of one or more liquid or solid high-temperature resistant materials with low heat conductivity, is made of one or more materials with excellent heat insulation performance, is in clearance fit with the upper shell and/or the heating disc on the upper and lower sides, is a device with excellent heat insulation performance, specifically, is a device with excellent heat insulation performance, wherein the upper shell, the heating disc and the heat insulation piece are in clearance fit with each other, or are in clearance fit with the upper shell or the heating disc on only one side, or are in contact with the upper shell and/or the heating disc in local areas, and the rest is in clearance fit with each other, or are arranged and filled between the heating disc and/or the upper shell, and is a device with excellent heat insulation performance, such as air, asbestos, glass or silicon crystal fiber, aerogel, mica, refractory powder and the like, and the upper shell, the heating disc and the heat insulation piece are in clearance fit, and are the most efficient application embodiments of the excellent heat insulation material, namely air; further, in order to enhance the heat insulating performance of the appliance, a heat insulating member may be added to the inside of the upper case and/or the connection part with the heat generating plate contact device.

The upper shell is formed by a single non-magnetic conductive material (such as plastic), or formed by combining a plurality of non-magnetic conductive materials (such as plastic, a micro-crystal plate, aluminum alloy and the like), or formed by combining a magnetic conductive material (such as stainless steel) and a non-magnetic conductive material, and specifically comprises a decoration (such as a micro-crystal plate used on the upper surface of the existing electromagnetic oven and the upper surface of the electromagnetic stove) for modifying and adjusting the gap between the heating plate and the upper shell; further, in order to provide products with different shapes and ensure the integrity of the appearance of the products, the upper shell is provided with a concave cavity for installing the heating plate and/or the heat insulation piece, or is provided with a step or a boss for directly or indirectly installing the heating plate, and in order to effectively reduce the temperature of the upper shell and/or the concave cavity and facilitate the cleaning and liquid discharge of the appliance, the side surface of the concave cavity is provided with a notch or a through groove or a through hole for radiating, cleaning and draining in one direction or multiple directions, and the side wall of the upper shell is provided with a hot air outlet.

The lower shell is matched with the upper shell, the bottom of the lower shell is provided with an appliance placing support leg and a cold air inlet, or an electronic component, an IGBT (insulated Gate Bipolar transistor) and a coil panel heat dissipation air outlet, and the lower shell is assembled with the upper shell to form a cavity, so that a device with a control panel, the coil panel and a fan arranged in the cavity can be used.

The support piece is used for installing and supporting the heating disc, and preventing the heating disc from contacting with the upper shell, and is a device formed by independent or combined nonmetallic materials and/or metallic materials.

The coil panel is arranged below the heating panel and arranged in a cavity formed by the upper shell and the lower shell, and the traditional electromagnetic heating product is widely applied and can convert alternating current into an alternating magnetic field, so that the heating panel generates heat under the action of eddy current.

Further, an electromagnetic heating apparatus of the present utility model is described below in conjunction with fig. 1 to 3.

In the embodiment shown in fig. 1, the upper shell is a device provided with a concave cavity and integrally formed by plastic, the supporting piece is made of ceramic, glass or mica, is fixedly connected or movably connected with the bottom of the concave cavity, and is uniformly distributed with 3 or more support posts, the heating disc is movably or fixedly arranged on the support posts and does not contact the upper shell and/or the concave cavity, one or more magnetic conductive metal or nonmetal materials are singly or compositely made into a flat plate with the thickness of 1.8 mm-6 mm, the heat insulating piece is arranged between the heating disc and the upper shell, the upper side and the lower side are in clearance fit with the heating disc and the upper shell, and the heat insulating piece is a plate-shaped or plate-shaped device made of ceramic, fiber or mica; further, in the embodiment, as the concave cavity and the upper shell are integrally formed, the top surface of the heating disc is lower than the upper surface of the upper shell, so that the product designed according to the embodiment is free from the constraint of electromagnetic heating products equivalent to electromagnetic ovens and electromagnetic ranges from the aspects of application of upper shell materials (no microcrystal plate) and the aspects of product integrity and appearance plasticity, and the concave cavity can effectively prevent the sliding and displacement of the container in use, thereby improving the use safety of the product, and therefore, the embodiment is suitable for products such as electric rice cookers, electric multipurpose cookers, health preserving kettles and the like; meanwhile, the upper shell is not in contact with the heating plate, so that adverse effects on the appliances and/or devices caused by heat conduction and heat convection of the heating plate are effectively avoided, particularly, the upper shell, the heating plate and the heat insulation piece are in clearance fit, the heat insulation piece not only blocks the damage of high-temperature heat radiation of the heating plate to the upper shell, but also prevents the adverse effects of heat convection and heat conduction of the high-temperature heating plate on the appliances and/or devices through the efficient utilization of natural excellent heat insulation materials 'air' for two times, the quality and the functions of the appliances are guaranteed, and hidden dangers of safety accidents are avoided.

In the embodiment shown in fig. 2, the upper shell is made of plastic or other non-magnetic conductive materials, the heating plate is arranged on the upper surface of the upper shell through a supporting piece, and is not contacted with the upper shell, and a flat plate with the thickness of 1.8 mm-6 mm is made of one or more magnetic conductive metal or non-metal materials singly or compositely. The heat insulating part is arranged between the upper shell and the heating disc, one side of the heat insulating part is in clearance fit with the heating disc, and the heat insulating part is a device made of a non-magnetic conductive material with low heat conductivity coefficient, such as fiber cotton, aerogel cotton, mica plates and the like, or high-temperature-resistant and solidifiable glue coated on the upper shell. Because the heating plate of this embodiment is set up above the upper surface of the upper shell, and one side of the insulating part contacts with the upper shell, the opposite side is clearance fit with the heating plate, not only make full use of "air" to the high-efficient separation of heat convection and heat conduction, and the structural style that four sides link up, utilize "air" fine mobility again, take away the heat that the heat radiation acted on insulating part and upper shell, the effective high temperature heating plate of having reduced is to utensil and/or device adverse effect, therefore the product of this design, not only can greatly improve the service temperature of the heating plate, but also can greatly reduce the upper shell to the dependence of material high temperature resistant characteristic (if do not use the micro-crystal plate), and then design the function more abundant, novel electromagnetic heating product.

In the embodiment shown in fig. 3, the upper shell is a combined device comprising a decoration and a decoration for adjusting the gap between the heating plate and the upper shell, wherein the heating plate is supported on the decoration through a supporting member and does not contact the upper shell, and is made into a concave body with the thickness of 1.8 mm-6 mm by singly or compositely using one or more magnetic conductive metal or non-metal materials, the concave body of the concave body heating plate is flush with the upper surface of the upper shell and/or the decoration, or is higher than or lower than the upper surface of the upper shell and/or the decoration, and the heat insulation member is a device which is arranged between the upper shell and the heating plate, is made of a non-magnetic conductive material with low heat conductivity coefficient, specifically, is a device which is filled between the heating plate and the upper shell, is made of a single or mixed powder heat insulation material, or is arranged between the heating plate and the upper shell, and is made of a device which is made of a combination of a plurality of heat insulation materials. Therefore, according to the embodiment, as the natural excellent heat insulation material, namely air is not adopted, the three heat conduction is reliably and effectively isolated within the height space of 6-12 mm between the upper shell and the heating plate, so that the cost of the heat insulation piece is increased, and the heat insulation protection level is reduced.

In summary, the technical scheme of the utility model uses the excellent heat insulation material air with low heat conductivity coefficient and good fluidity without any cost as a transmission way for blocking heat conduction and heat convection of the high-temperature heating plate in the axial space between the heating plate and the upper shell, namely between the upper shell and the heating plate by 6 mm-12 mm, and uses a diversified solid heat insulation member setting scheme as a transmission way for blocking heat radiation of the high-temperature heating plate. Therefore, the utility model not only reliably and efficiently blocks the adverse effect on the appliances and/or devices by the high-temperature heating plate in the limited space and improves the quality and performance of products, and avoids the occurrence of safety accidents, but also is easy to apply the electromagnetic heating technology to more finely divided products, and the products with complete and fashionable appearance modeling, complete functions and simple operation lead the public to generate new cognition on the electromagnetic heating technology, such as home use or business use of the utility model: air fryer, electric cooker, electric pressure cooker, electric steamer, health preserving kettle, electric traditional Chinese medicine kettle, electric heating multipurpose pot, electromagnetic oven or electromagnetic stove without picking pot, etc. and the same product can meet the demands of different consumption levels only by configuring containers with different materials.

Claims

1. An electromagnetic heating appliance, comprising:

2. An electromagnetic heating device according to claim 1, wherein the heating plate is supported by the support member without contacting the upper shell, is fixedly or movably connected with the upper shell, has a top surface flush with the upper surface of the upper shell, or is lower or higher than the upper surface of the upper shell, and is made of a magnetically conductive metal material, and is a plate, a concave body or a convex body which is independently made of the magnetically conductive metal material.

3. An electromagnetic heating device according to claim 1, wherein the heat insulating member is one or more devices made of a low thermal conductivity high temperature resistant material, and having upper and lower sides in clearance fit with both the upper case and the heat generating plate, or having only one side in clearance fit with the upper case or the heat generating plate, or having a partial region in clearance fit with the upper case and/or the heat generating plate contact remainder, or being mounted on, filled between, and made of a low thermal conductivity high temperature resistant material.

4. An electromagnetic heating device according to claim 1, characterized in that the upper shell is provided with a concave cavity for installing a heating plate and/or a heat insulating piece and a supporting piece, or is provided with a step or a boss for directly or indirectly installing the heating plate, and the side surface of the concave cavity is provided with a notch or a through groove or a through hole for heat dissipation, cleaning and liquid drainage in one direction or a plurality of directions.