WO2020015082A1

WO2020015082A1 - Electric heating apparatus and electric flame cooker

Info

Publication number: WO2020015082A1
Application number: PCT/CN2018/104406
Authority: WO
Inventors: 卢驭龙
Original assignee: 卢驭龙
Priority date: 2018-07-16
Filing date: 2018-09-06
Publication date: 2020-01-23

Abstract

An electric heating apparatus and an electric flame cooker. The electric arcs generated by air outlet components (50) of the electric heating apparatus break down the outside air transferred by an air extraction assembly (10) to form a plasma flow. The plasma flow can be discharged from an air outlet port of an air outlet component (50) to form a plasma flame, which can be used to heat a cookware (40) and replace gaseous fuel used by a gas stove, greatly improving the usage safety of an electric heating apparatus. By inserting the air outlet components (50) to a first heat insulation element (20) and a second heat insulation element (30) respectively, the first heat insulation element (20) and the second heat insulation element (30) can effectively isolate the plasma flow discharged from the air outlet components (50) from the outside air, improving the heating efficiency of an electric heating apparatus. Also provided is a magnetic element (21), which is used to change the form and the flow rate of the plasma flame. The specification of the magnetic element (21) can be selected to realize the adjustment to the form and the flow rate of the plasma flame formed by the plasma flow, thus flexibly adjusting the heating effect of an electric heating apparatus.

Description

Manual Name of Invention: Electric heating device and electric flame stove

[0001] This application is based on a Chinese patent application with an application number of 201821129683.0 and an application date of July 16, 2018, and claims its priority. The entire contents of this application are incorporated herein as a whole.

[0002] Technical Field

[0003] The present application belongs to the technical field of electric heating, and in particular, relates to an electric heating device and an electric flame stove.

[0004] Background Art

[0005] Currently, electric stoves are used as a source of energy to generate heat for heating. They are convenient and safe and are widely used in various fields. There are mainly three types of electric heating cookers: 1. Induction cookers; Induction cookers use electromagnetic induction In principle, the surface of the induction cooker is a heat-resistant ceramic plate, and a pot made of ferromagnetic material is placed on the heat-resistant ceramic. A coil is placed below. The control circuit of the induction cooker generates an alternating current flowing through the coil to generate a magnetic field. The magnetic field lines pass through the iron. The bottom of the magnetic pot, the bottom of the ferromagnetic pot will generate eddy current, which will cause the bottom of the pot to quickly generate heat and achieve high temperature, to achieve the heating function. 2. Electric ceramic stove; Place the resistance wire in the lower part of the cooker. After the resistance wire is energized, it will generate high temperature, and the high-temperature resistance wire will glow. The bottom of the cooker will be heated mainly by heat radiation. 3. Halogen lamp stove; a halogen lamp is placed in the lower part of the cooker, and the halogen lamp emits infrared heat radiation when it is energized to heat the item.

[0006] However, the existing electric heating cooker has the following problems: 1. The principle of electromagnetic heating requires that the cooker must be made of ferromagnetic material, otherwise the heating function cannot be achieved, there are restrictions on the material of the cooker, and some cooking forms cannot be achieved (such as Some cooking methods using ceramic containers cannot be heated by induction cookers). In addition, the bottom of the ferromagnetic cooker can only generate heat when it is directly facing the upper part of the coil. There is no heat generation in the other parts of the cooker without the coils facing directly, which leads to insufficient heating uniformity of the cooker. It is cold and has an effect on cooking. The “fire pot” that does not reach gas heating has a very uniform heating effect. 2. The electric ceramic stove and the Nansu lamp stove both use the heat radiation method to heat the pot. Although these two heating methods have no restrictions on the material of the pot, they can heat pots of various materials, including ceramic containers, but radiant heating. The method is still very different from the traditional gas flame heating method, and it can not achieve a very uniform heating effect of the traditional fired "fired pot".

[0007] Application Contents [0008] The object of the present application is to provide an electric heating device, which aims to solve the technical problem of uneven electric heating in the prior art.

[0009] In order to achieve the above object, the technical solution adopted in this application is: an electric heating device, the electric heating device includes a plurality of air outlet components for generating an arc to penetrate air to form a plasma airflow and heating the kitchenware, and A first heat insulator and a second heat insulator for heat-exhausting the plasma airflow discharged from the air-exhaust component, an air-exhaust component for delivering external air to the air-exhaust component, the first heat-insulation And the second heat insulator is spaced apart, one end of the air outlet component is inserted into the first heat insulator, and the other end of the air outlet component is inserted into the second heat insulator. The air extraction component is in communication with the air extraction component, and a magnetic member for changing the direction of the plasma is provided at the bottom of the first heat insulator.

[0010] Further, the electric heating device includes a plurality of air outlet components arranged in a ring shape, and each of the air outlet components is connected to the air extraction component.

[0011] Further, a ring formed by enclosing a plurality of the air outlet components has a central axis, a bottom of the first heat insulation part is provided with a fixing groove, and the fixing groove is located on the central axis, the magnetic The pieces are fixed in the fixing groove.

[0012] Further, a side wall of the fixing groove is further provided with a non-slip protrusion for preventing the magnetic piece from falling off.

[0013] Further, the non-slip protrusion is made of a rubber material.

[0014] Further, each of the air outlet components includes an air inlet for communicating with the air extraction component, a gas jet tube for discharging the plasma gas flow, a cover plate sleeved on one end of the gas jet tube, and a sleeve. An air outlet head provided at the other end of the air jet pipe and an electrode for forming an arc in cooperation with the air outlet head to penetrate air, the air inlet head has a receiving chamber for receiving the electrode, and the cover plate Covering the accommodating chamber, the air-jet tube is in communication with the accommodating chamber.

[0015] Further, each of the gas outlet components is disposed at an angle to a horizontal plane, and the line connecting the central axis of each of the gas jet tubes intersects at the same point.

[0016] Further, the air extraction assembly includes a gas collection chamber for storing air and an air extraction member for drawing external air into the gas collection chamber, and the gas collection chamber is provided with a plurality of exhausts. Each of the air inlets is in communication with an air outlet.

[0017] Further, the air extraction member is any one of a blower, an axial flow fan, an air pump, and a fan.

[0018] Beneficial effects of the present application: The electric heating device of the present application can set the air extraction group through the arc generated by the air outlet component. The external air transported by the components breaks down to form a plasma stream. The plasma stream can be discharged from the gas outlet of the gas outlet to form a plasma flame, which can then heat the kitchen utensils, which can replace the gas fuel used by the gas stove and greatly improve the electric heating. Safety of use of the device; by inserting the air outlet component on the first heat insulator and the second heat insulator, the first heat insulator and the second heat insulator are spaced apart, and the first heat insulator and the second heat insulator The hot piece can effectively separate the high-temperature plasma airflow discharged from the gas outlet component from the external air. The high-temperature plasma airflow is less affected by the external air, and the temperature change of the high-temperature plasma airflow is small. Therefore, the thermal efficiency of the electric heating device can be improved. Then, by providing a magnetic member for changing the shape and flow rate of the plasma flame, the shape and flow rate of the plasma flame formed by the plasma gas flow can be adjusted by selecting the specifications of the magnetic member, and the heating effect of the electric heating device can be flexibly adjusted.

[0019] An embodiment of the present application further provides a heating range, including the electric heating device described above, and further including a cooking body for installing the electric heating device.

[0020] The heating stove of the present application, because the arc generated by the gas outlet component of the electric heating device can penetrate the external air sent by the gas extraction component to form a plasma flow, and the plasma gas flow can be discharged from the gas outlet end of the gas outlet component to form a plasma flame. In addition, the kitchenware can be heated, and the shape and flow rate of the plasma flame can be changed by setting magnetic parts to flexibly adjust the heating effect of the electric heating device.

BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are merely Some embodiments of the present application, for those skilled in the art, can obtain other drawings according to the drawings without paying creative labor.

[0023] FIG. 1 is a schematic structural diagram of an electric flame range provided by an embodiment of the present application;

2 is a schematic structural diagram of an electric heating device according to an embodiment of the present application;

[0025] FIG. 3 is a schematic exploded structure diagram of an electric heating device according to an embodiment of the present application;

[0026] FIG. 4 is a schematic structural diagram of an air extraction component according to an embodiment of the present application;

[0027] FIG. 5 is a schematic diagram of an exploded structure of an air outlet component according to an embodiment of the present application;

6 is a schematic structural diagram of a first heat insulation member according to an embodiment of the present application.

[0029] Wherein, each reference numeral in the figure:

[0030] 10-exhaust assembly; 11 a gas collection chamber; 12-exhaust parts; 111 an exhaust hole; [0031] 20—the first heat insulating member; 21—the magnetic member; 22—the fixing groove; 221—the non-slip protrusion;

[0032] 30—the second heat insulator;

[0033] 40-kitchenware;

[0034] 50-air-exhaust assembly; 51-air inlet; 52-jet tube; 53-cover; 54-air outlet;

[0035] 55—electrode; 511—accommodation chamber;

[0036] 60—support frame.

DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to FIGS. 1 to 6 are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0039] In the description of this application, it should be understood that the terms “length”, “width”, “upper”, “lower”, and “front”

, "Back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or position relationship based on the drawings The orientation or positional relationship is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, structure and operation in a specific orientation, so it cannot be understood as a limitation on this application.

[0040] In addition, the terms “first” and “second” are used for descriptive purposes only, and should not be interpreted as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "a plurality" is two or more, unless it is specifically and specifically defined otherwise.

[0041] In this application, the terms "installation", "connected", "connected", "fixed" and other terms shall be understood in a broad sense, unless explicitly stated and limited otherwise, for example, they may be fixed connections or may be Removable connection, or integration; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0042] As shown in FIGS. 1 to 6, an embodiment of the present application provides an electric heating device. The electric heating device includes a plurality of air outlet components 50 for generating an arc to penetrate air to form a plasma airflow and heat the kitchenware 40. , use A first heat insulator 20 and a second heat insulator 30 for insulating the air extraction module 10 for conveying external air to the air outlet module 50, and a first heat insulator 20 and a second heat insulator 30 for thermally insulating the plasma airflow discharged from the air outlet module 50; The second heat insulation member 30 is disposed at intervals. One end of the air outlet assembly 50 is inserted into the first heat insulation member 20, the other end of the air outlet assembly 50 is inserted into the second heat insulation member 30, the air extraction assembly 10 and the air outlet assembly 50 communicates, and a magnetic member 21 for changing the direction of the plasma is provided at the bottom of the first heat insulator 20.

[0043] The electric heating device of the embodiment of the present application can penetrate the external air delivered by the air extraction component 10 to form a plasma flow through the arc generated by the air outlet component 50. The plasma air flow can be discharged from the air outlet end of the air outlet component 50 to form a plasma. The flame can further heat the kitchen utensil 40, which can replace the gas fuel used by the gas stove, and can greatly improve the safety of the electric heating device. By inserting the gas outlet assembly 50 into the first heat insulator 20 and the second partition, respectively On the heat piece 30, the first heat insulation piece 20 and the second heat insulation piece 30 are arranged at intervals. The first heat insulation piece 20 and the second heat insulation piece 30 can effectively separate the plasma flame discharged from the gas outlet assembly 50 from the outside air. The plasma flame is less affected by external air, and the temperature change of the plasma flame is small, so the thermal efficiency of the electric heating device can be improved. By providing a magnetic piece, the magnetic field of the magnetic piece can be used to change the shape and flow rate of the plasma flame. The shape and flow rate of the plasma flame formed by the plasma stream can be adjusted by selecting the specifications of the magnetic piece, and the heating of the electric heating device can be flexibly adjusted. effect.

[0044] Further, as shown in FIGS. 3 to 5, in this embodiment, the electric heating device includes a plurality of air outlet components 50 arranged in a ring shape, and each air outlet component 50 is connected to the air extraction component 10. By providing a plurality of gas outlet components 50, the number of plasma flames can be increased, and the heating rate of the electric heating device can be further accelerated. In addition, setting the air outlet component 50 in a ring shape can make the distribution of the air component 50 more uniform, so that the heated pot body can be heated more uniformly.

[0045] Further, as shown in FIG. 5, in this embodiment, a ring formed by enclosing a plurality of air outlet components 50 has a central axis, and a fixing groove 22 is provided at the bottom of the first heat insulation portion, and the fixing groove 22 is located on the central axis, and the magnetic member 21 is fixed in the fixing groove 22. By setting a fixing groove 22 on the bottom of the first heat insulation portion, the magnetic member 21 can be fixed, and the magnetic member 21 can be prevented from falling off due to environmental influences such as high temperature during the use of the electric heating device. The fixing groove 22 is provided at a circular central axis formed by enclosing the plurality of air outlet components 50, so that the plasma gas flow formed from the plurality of air outlet components 50 is subjected to the same magnetic field force and the direction of the magnetic field force is uniform. Toward or away from the central axis, when the magnetic field force of the plasma gas stream is directed toward the central axis, heating in a small area can be realized, and the heating efficiency is improved; When the magnetic field force is far from the central axis, the pot body can be uniformly heated.

[0046] Specifically, in this embodiment, the magnetic member is an electromagnet. The electromagnet has the characteristics of forming a relatively stable magnetic field and controllable magnetic force. In this way, on the one hand, the service life of the electric heating device can be effectively extended. On the other hand, the current flowing through the electromagnet can be controlled to adjust the shape and flow rate of the plasma flame formed by the plasma gas flow, which can flexibly adjust the heating effect of the electric heating device. In addition, it can also be controlled by controlling the direction of the current The direction of the magnetic field plays a more flexible role in controlling the heating effect of the electric heating device.

[0047] Specifically, in this embodiment, the magnetic member may also be a permanent magnet or other items that can generate a magnetic field, and this application does not specifically limit the specific type of the magnetic member.

[0048] Further, as shown in FIG. 6, in this embodiment, a side wall of the fixing groove 22 is further provided with a non-slip protrusion 221 for preventing the magnetic member 21 from falling off. The non-slip protrusion 221 is provided to fix the magnetic member and prevent the magnetic member from falling out of the fixing groove 22.

[0049] Further, in this embodiment, the non-slip protrusion 221 is made of a rubber material. The non-slip protrusion 221 is provided as a flexible rubber material. On the one hand, the rubber material is flexible. When the user exerts force, the shell can easily remove the magnetic member 21 to facilitate user replacement. On the other hand, the rubber material can be used with the magnetic member. The interference fit of 21 makes the magnetic piece 21 more firmly fixed.

[0050] Further, as shown in FIG. 5, in this embodiment, each air outlet component 50 includes an air inlet 51 for communicating with the air extraction component 10, a gas injection pipe 52 for exhausting a plasma gas stream, and is sleeved on A cover plate ₅₃ at the end of the air injection tube 52, an air outlet head 54 sleeved on the other end of the air outlet tube 52, and an electrode 55 for cooperating with the air outlet head 54 to form an arc to penetrate the air, and the air inlet head 51 has a space for accommodating the electrode 55. The accommodating chamber 511 and the cover plate 53 cover the accommodating chamber 511, and the air-jet tube 52 communicates with the accommodating chamber 511. The air extraction module 10 transmits external air to the accommodation chamber 511 through the air inlet channel. The electrode 55 cooperates with the air outlet head 54 to generate an arc and penetrate the air to form a plasma airflow, and is discharged through the air injection pipe 52 to heat the kitchen utensil 40. .

[0051] Further, as shown in FIGS. 3 to 5, in this embodiment, each of the air outlet components 50 is set at an angle to the horizontal plane, and the lines connecting the central axes of the air jet tubes 52 intersect at the same point. The lines connecting the central axes of the air-jet tubes 52 intersect at the same point, that is, the extension lines of the air outlets of the air-jet tubes 52 intersect at the same point, so that the kitchen utensil 40 can be uniformly heated.

[0052] Further, as shown in FIG. 4, in this embodiment, the air extraction assembly 10 includes a gas collection for storing air. The chamber 11 and an air extraction member 12 for drawing external air into the plenum chamber 11, the plenum chamber 11 is provided with a plurality of exhaust holes 111, and each of the air inlet heads 51 communicates with one exhaust hole 111. The gas collection chamber 11 is a hollow sealed chamber, and the air extraction member 12 is in communication with the gas collection chamber 11. Here, the air extractor 12 is preferably any one of an axial fan, an air pump, and a fan. A plurality of exhaust holes 111 are evenly distributed on the plenum chamber 11, each exhaust hole 111 is in communication with a corresponding air inlet passage, and the air inlet channel is in communication with a corresponding accommodating chamber 511. In this structure, the air extraction member 12 draws external air into the air collection chamber 11 and divides the air into the accommodating chamber 511 of each air outlet assembly 50 through each exhaust hole 111, so that the high temperature plasma airflow of each air outlet assembly 50 is uniform. In other embodiments, the air extraction member 12 may also be other air extraction equipment, which is not limited here.

[0053] Further, in this embodiment, a support frame 60 for supporting the kitchenware 40 is also provided above the second heat insulation member 30.

[0054] As shown in FIG. 1, an embodiment of the present application further provides a heating range, including the above-mentioned electric heating device, and further including a cooking body for installing the electric heating device.

[0055] In the heating range of the embodiment of the present application, the arc generated by the air outlet component 50 of the electric heating device can penetrate the external air delivered by the air extraction component 10 to form a plasma flow, and the plasma air flow can be emitted from the air outlet component 50. The plasma flame is formed at the end, and the kitchenware 40 can be heated. The shape and flow rate of the plasma flame can be changed by setting the magnetic member 21 to flexibly adjust the heating effect of the electric heating device.

[0056] The above are only preferred embodiments of this application, and are not intended to limit this application. Any modification, equivalent replacement, and improvement made within the spirit and principles of this application shall be included in this application. Within the scope of protection.

Summary of invention

technical problem

Problem solution

The beneficial effects of the invention

Claims

Claim

[Claim 1] An electric heating device, characterized in that: the electric heating device includes an air outlet component for generating an electric arc to penetrate air to form a plasma gas flow and heating the kitchenware, and is used to deliver external air to the air outlet An air extraction component of the module, a first heat insulation component and a second heat insulation component for heat insulation of the plasma airflow discharged from the air outlet component, the first heat insulation component and the second heat insulation component At intervals, one end of the air outlet component is inserted into the first heat insulator, the other end of the air outlet component is inserted into the second heat insulator, the air extraction component and the air outlet component Communicating, a magnetic member for changing the direction of the plasma airflow is provided at the bottom of the first heat insulator.

[Claim 2] The electric heating device according to claim 1, characterized in that: the electric heating device includes a plurality of the air outlet components arranged in a ring shape, and each of the air outlet components and the air extraction component Connected and evenly spaced.

[Claim 3] The electric heating device according to claim 2, wherein a ring formed by enclosing a plurality of the air outlet components has a central axis, and a fixing groove is provided at the bottom of the first heat insulation member. And the fixing groove is located on the central axis, and the magnetic member is fixedly disposed in the fixing groove.

[Claim 4] The electric heating device according to claim 3, wherein a side wall of the fixing groove is further provided with a non-slip protrusion for preventing the magnetic member from falling off.

[Claim 5] The electric heating device according to claim 4, wherein the non-slip protrusions are made of rubber material.

[Claim 6] The electric heating device according to claim 2, characterized in that each of the air outlet components includes an air inlet head for communicating with the air extraction component, and a gas injection pipe for exhausting the plasma gas flow. A cover plate sleeved on one end of the air jet tube, a gas outlet head sleeved on the other end of the air jet tube, and an electrode for cooperating with the gas outlet head to form an arc to penetrate air, and the air inlet head has An accommodating chamber for accommodating the electrodes, the cover plate covers the accommodating chamber, and the air jet tube is in communication with the accommodating chamber.

[Claim 7] The electric heating device according to claim 6, characterized in that: each of the gas outlet components is disposed at an angle to a horizontal plane, and the line connecting the central axis of each of the gas jet tubes intersects at the same point

[Claim 8] The electric heating device according to claim 7, characterized in that: the air extraction assembly includes a gas collection chamber for storing air and a gas extraction chamber for drawing external air into the gas collection chamber. For air parts, a plurality of exhaust holes are provided on the air collection chamber, and each of the air inlets is in communication with one of the exhaust holes.

[Claim 9] The electric heating device according to claim 8, wherein the air extraction member is any one of a blower, an axial fan, an air pump, and a fan.

[Claim 10] The heating range, characterized in that: the heating range comprises the electric heating device according to any one of claims 1 to 9, and further comprises a stove body for mounting the electric heating device.