CN110662311B - Graphene electric heating film heating cooking device - Google Patents
Graphene electric heating film heating cooking device Download PDFInfo
- Publication number
- CN110662311B CN110662311B CN201911030993.6A CN201911030993A CN110662311B CN 110662311 B CN110662311 B CN 110662311B CN 201911030993 A CN201911030993 A CN 201911030993A CN 110662311 B CN110662311 B CN 110662311B
- Authority
- CN
- China
- Prior art keywords
- graphene
- cooking device
- container
- electrothermal film
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0258—For cooking
- H05B1/0261—For cooking of food
- H05B1/0266—Cooktops
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Food Science & Technology (AREA)
- Carbon And Carbon Compounds (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
本发明涉及石墨烯电热膜发热烹饪装置。烹饪装置包括盛物器具和石墨烯电热膜，其中，所述石墨烯电热膜置于盛物器具底面，所述石墨烯电热膜包括石墨烯发热层，电极和绝缘保护层，其中，所述石墨烯发热层为单层石墨烯，少层石墨烯或多层石墨烯。本发明的烹饪装置通过石墨烯电热膜发热，可以使食材受热均匀，避免食材烤糊或者未熟透的情况；可以低温低功率烹饪食品，实现节能减排；升温迅速，并能精确控制温度；烹饪过程中几乎不产生油烟，非常适合在室内进行烹饪。
The present invention relates to a graphene electric heating film heating cooking device. The cooking device comprises a container and a graphene electric heating film, wherein the graphene electric heating film is placed on the bottom surface of the container, and the graphene electric heating film comprises a graphene heating layer, an electrode and an insulating protective layer, wherein the graphene heating layer is a single-layer graphene, a few-layer graphene or a multi-layer graphene. The cooking device of the present invention generates heat through the graphene electric heating film, so that the food is heated evenly to avoid the situation that the food is burnt or not cooked thoroughly; food can be cooked at low temperature and low power to achieve energy saving and emission reduction; the temperature rises quickly and the temperature can be accurately controlled; almost no smoke is generated during the cooking process, which is very suitable for cooking indoors.
Description
Technical Field
The invention relates to the field of cooking appliances, in particular to a graphene electrothermal film heating cooking device.
Background
The existing electric furnace generally adopts alloy wires or alloy foils as heating elements for heating, and most commonly, the alloy wires are made into electric heating tubes for heating, so that the electric furnace has a plurality of defects.
Firstly, the alloy heating element heats unevenly, the heating element radiates heat by a point-shaped heat source or a linear heat source, the temperature of the position close to the heating element is high, the temperature of the position far away from the heating element is low, the food material is heated unevenly easily in the baking process, the same partial area of the food material is not cooked, and the other areas are burnt. In order to solve the problem of uneven heating, a part of baking trays adopt a mode of simultaneously heating a plurality of heating elements side by side or manufacturing the heating elements to generate heat, but on one hand, the structure has limited improvement degree of uneven heating, particularly the position between the heating elements is usually at a temperature far lower than the corresponding position of the heating elements, and on the other hand, the structure is complex, thereby causing the problems of inconvenient early installation and inconvenient later maintenance.
Secondly, the processing temperature is higher by adopting an alloy heating element heating mode, a temperature sensor is usually arranged on a baking tray to detect the temperature of the baking tray at present, but the temperature of the baking tray is uneven when the alloy element is heated because the sensor does not generate heat, so the temperature detected by the temperature sensor is usually far lower than the temperature near the heating element, namely the temperature of the baking tray is usually higher than the set temperature, the cooking temperature is usually higher than 200 ℃, and the cooking temperature is higher than the smoke point of most edible oil, so a large amount of oil smoke can appear in the baking process.
Again, the electric barbecue ovens using alloy heating elements are relatively powerful, typically greater than 1000W, and therefore are severely wasteful of energy.
Disclosure of Invention
The invention aims to solve the technical problems that the existing electric oven is uneven in heating, high in heating temperature, high in power and difficult to accurately control temperature.
The invention aims to solve the technical problems, adopts the graphene electrothermal film as a heating element, and the heating element dissipates heat by a planar heat source, so that the electric oven which generates heat uniformly, saves energy and has high temperature control precision is prepared.
Specifically, the invention provides the following technical scheme:
the invention provides a cooking device which comprises a container and a graphene electrothermal film, wherein the graphene electrothermal film is arranged on the bottom surface of the container and comprises a graphene heating layer, an electrode and an insulating protective layer, the graphene heating layer is single-layer graphene, fewer-layer graphene or multiple-layer graphene, and preferably, the insulating protective layer is arranged on the upper surface and the lower surface of the graphene heating layer.
Preferably, in the cooking device, the area of the graphene is substantially equal to the area of the graphene electrothermal film;
Preferably, the area of the graphene is 50% -100% of the area of the bottom surface of the container, more preferably, the area of the graphene is more than 60% of the area of the back side of the container, still more preferably, the area of the graphene is more than 70% of the area of the back side of the container, still more preferably, the area of the graphene is more than 80% of the area of the back side of the container, still more preferably, the area of the graphene is more than 90% of the area of the back side of the container.
Preferably, in the cooking device, the graphene heating layer is 1-10 layers of graphene, preferably, the graphene heating layer is 1-5 layers of graphene, and more preferably, the graphene heating layer is 1-2 layers of graphene.
Preferably, the above cooking device, wherein the electrode material is disposed on the surface of the graphene heating layer, preferably, the electrode material is disposed on two sides of the graphene heating layer, more preferably, the electrode material is selected from metal, preferably, the electrode material is selected from silver, copper and/or aluminum.
Preferably, the cooking device comprises a temperature sensor, wherein the temperature sensor is preferably connected with the graphene electrothermal film, and more preferably, the temperature sensor is arranged on the bottom surface of the graphene electrothermal film;
More preferably, the cooking device comprises an over-temperature protection switch, more preferably, the over-temperature protection switch is connected with the graphene electrothermal film, more preferably, the over-temperature protection switch is set at 145-180 ℃, and more preferably, the over-temperature protection switch is set at 145-150 ℃.
Preferably, the cooking device is provided with a bottom shell, the bottom shell is located below the graphene electrothermal film, and preferably, the bottom shell is installed on the bottom surface of the container.
Preferably, the cooking apparatus as described above, wherein the cooking apparatus includes a support member,
Preferably, one end of the temperature sensor is connected with the bottom surface of the graphene electrothermal film, and the other end of the temperature sensor is connected with the temperature control system;
More preferably, the support member is provided with a first conductive contact portion, the container is provided with a second conductive contact portion, the second conductive contact portion is in electrical communication with the graphene electrothermal film, and when the container is placed on the support member, the first conductive contact portion is in electrical communication with the second conductive contact portion.
Preferably, in the cooking device, the container is provided with an oil leakage port, and preferably, the oil leakage port is located at an edge position of the container.
Preferably, the cooking device comprises an oil receiving component, and the oil receiving component is detachably arranged at a position corresponding to the oil leakage port on the bracket.
Preferably, the cooking device is a cooking device, wherein the container is selected from a baking tray, a grill or a pan, preferably, the container is selected from a metal material or a glass material, more preferably, the surface of the container is sprayed with a non-stick coating, and even more preferably, the non-stick coating is selected from a polytetrafluoroethylene coating.
The beneficial effects of the invention include:
1. The graphene electrothermal film is a planar heating structure which integrally heats, and can be used as a heating element for cooking, so that food materials can be heated uniformly, and the condition that the food materials are burnt or not cooked is avoided.
2. The graphene electrothermal film is used as a heating element, so that low-temperature and low-power food cooking can be realized, and energy conservation and emission reduction are realized.
3. The graphene electrothermal film is used as a heating element, the temperature is quickly raised, the temperature is sensitive to the change reaction of voltage or current, the power is controlled in a mode of stepless voltage or current regulation through the temperature control system, and the accurate temperature control is realized.
4. The graphene heating electric barbecue oven has the advantages that lampblack is hardly generated in the cooking process, the graphene heating electric barbecue oven is very suitable for cooking indoors, and cooking work, such as barbecue, which needs to be carried out outdoors can be transferred to be carried out indoors.
Drawings
FIG. 1 is an electric barbecue oven of example 1;
FIG. 2 is an electric barbecue oven of example 2;
In the figure, 1 is a baking tray, 2 is a graphene electrothermal film, 3 is a bottom shell, 4 is a temperature sensor, 5 is a bracket, 6 is a temperature control system, 7 is a metal contact column, 8 is a metal contact point, 9 is an oil leakage port, and 10 is an oil receiving tray.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is apparent that all other embodiments obtained by those skilled in the art without inventive work based on the specific embodiments of the present invention are within the scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, indirectly connected through intermediaries, or communicating between the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Where not specifically stated, the terms "center," "top," "bottom," "upper," "lower," "left," "right," "vertical," "horizontal," "longitudinal," "transverse," "inner," "outer," and the like designate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the invention and simplify description, and do not designate or imply that the apparatus or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the invention.
The terms "first," "second," and "third" are used for descriptive purposes only and not for understanding relative importance.
As used herein, the term "bottom surface" refers to the side facing away from the food product.
The term "graphene" or "monolayer graphene" refers to a two-dimensional carbon nanomaterial comprising only one layer of carbon atoms in sp 2 hybridized orbitals to form a hexagonal honeycomb lattice, including doped or undoped graphene.
The term "few-layer graphene" refers to a material obtained by stacking 2-3 layers of "single-layer graphene".
The term "multi-layer graphene" refers to a material obtained by stacking 4-10 layers of "single-layer graphene".
According to the technical scheme, the graphene electric heating film heating electric oven comprises a container and a graphene electric heating film, wherein the graphene electric heating film is arranged on the bottom surface of the container, the graphene electric heating film heats through graphene, and the area of the graphene is basically equal to that of the graphene electric heating film, so that the area of the bottom surface of the container can be more than 50%.
The graphene electrothermal film can be prepared by the method of CN105517215B example 1 or example 2. The electrothermal film comprises an insulating layer, a graphene heating layer, an electrode layer and an insulating protective layer.
In the preferred technical scheme of the invention, the graphene electrothermal film heating electric oven comprises a baking tray, a graphene electrothermal film, a power supply and a temperature control system.
In the preferred technical scheme of the invention, the graphene electrothermal film is directly adhered to the bottom surface of the baking tray. Preferably, the baking tray is made of metal or glass, preferably metal. The front surface of the baking tray made of metal material can be sprayed with a coating taking polytetrafluoroethylene as a main raw material. When the electric heating film is stably operated, the temperature difference between the temperature of the graphene electric heating film and the temperature of the front surface of the metal baking tray is less than 5%.
In the preferred technical scheme of the invention, an over-temperature protection switch and a temperature detector are arranged on the graphene electrothermal film. The temperature detector measures the temperature of the graphene electrothermal film in real time, and the overtemperature protection switch controls the highest temperature of the electric oven in real time. Preferably, the temperature of the over-temperature protection switch is set to be 150-180 ℃, and more preferably, the temperature of the over-temperature protection switch is set to be 150 ℃ so as to prevent the cooking temperature of the graphene electric barbecue oven from exceeding 150 ℃. Thereby realizing that the cooking temperature considered by the graphene point is controlled within most edible oil smoke points.
According to the technical scheme, the graphene heating electric oven comprises a baking tray, a graphene electric heating film, a bottom shell, a power supply and temperature control system, an oil leakage receiving tray and a bracket.
According to the technical scheme, the bottom shell can effectively prevent heat radiation generated by the downward face of the graphene electrothermal film and heat loss caused by air convection in the environment, so that heat energy generated by the graphene electrothermal film is transferred to the baking tray as much as possible. The bottom shell can effectively optimize heat energy utilization, and can effectively improve the electric utilization efficiency, thereby achieving the effect of energy conservation.
In a preferred embodiment of the present invention, the power source includes a power switch and an indicator light. The graphene electrothermal film can be suitable for direct current or alternating current, and the graphene electrothermal film can generate heat under the voltage within the rated voltage, so that the temperature control system adopts a voltage or current frequency conversion regulation mode.
The support is used as a supporting structure of the graphene electric heating film electric barbecue oven, the graphene electric barbecue oven can be suspended, the heating part of the graphene electric barbecue oven is prevented from being in direct contact with a tabletop, and the influence of the graphene electric barbecue oven on the tabletop is reduced as much as possible. Preferably, the portion of the support, which is in contact with the graphene electric oven, is made of a material with high temperature resistance, insulation and low heat conductivity.
Example 1
The embodiment is an electric barbecue oven, as shown in fig. 1, the electric barbecue oven comprises a baking tray 1, a graphene electrothermal film 2, a bottom shell 3, a power supply, a temperature control system 6 and a bracket 5. The graphene electrothermal film 2 comprises 2 layers of graphene and electrodes, the surface of the graphene electrothermal film is a polyethylene naphthalate (PEN) insulating protective layer, and the temperature of the graphene electrothermal film can be raised to 150 ℃ at about 30 seconds. The graphene electrothermal film 2 is connected with the temperature sensor 4 and an over-temperature protection switch, and the over-temperature protection switch sets the protection temperature of the graphene electrothermal film 2 to be 150 ℃.
The graphene electrothermal film 2 is directly pasted on the bottom surface of the baking tray 1, the area of the graphene electrothermal film 2 is 60% of the area of the bottom surface of the baking tray 1, two metal contact posts 7 are arranged on the support 5, the metal contact posts 7 are connected to a power switch, the baking tray is provided with two other metal contact points 8, and the metal contact points 8 are connected to the graphene electrothermal film 2, the temperature sensor 4 and an over-temperature protection switch. The metal contact points 8 correspond to the metal contact posts 7 on the bracket, and when the baking tray is placed on the bracket, the metal contact points correspond to the metal posts, so that the whole electric loop is connected.
Through detection, the temperature difference between the temperature of the baking tray 1 and the temperature difference between the graphene electrothermal film 2 is 5 ℃ at most, the area of an effective heating area of the baking tray 1 is basically equal to that of the graphene electrothermal film 2, and the highest temperature difference and the lowest temperature difference in adjacent 25cm 2 areas in the effective heating area of the baking tray 1 are about 12 ℃. It can be seen that the electric barbecue oven manufactured by the graphene electrothermal film has very uniform cooking temperature. In the cooking process, the food material is uniformly baked, and the phenomenon of baking paste hardly occurs. In addition, through detection, the electric barbecue oven with the effective heating area of about 1000cm 2 uses about 250W of power, thereby achieving the aim of saving energy to a great extent.
The temperature of the graphene electrothermal film is regulated by the temperature control system, so that the temperature control precision of the baking tray can reach 5 ℃ under the condition of responding to 10 s. The electric oven manufactured by the graphene electric heating film can effectively control the temperature of the baking tray within a smoke point, and can effectively control the cooking temperature by utilizing the characteristic of wide voltage range of the graphene electric heating film.
The steak with the weight of about 250g is placed in the baking tray for baking, the electric oven can enable the steak to be baked for ten maturity in 9 minutes when no smoke exists, so that the smokeless barbecue of food materials is realized, and meanwhile, the baking maturity of the food materials can be realized.
Example 2
The difference between the electric barbecue oven of this embodiment and the electric barbecue oven of embodiment 1 is that:
the graphene electrothermal film 2 comprises 1 layer of graphene and an electrode, the surface of the graphene electrothermal film is a polyethylene naphthalate (PEN) insulating protective layer, and the temperature of the graphene electrothermal film can be raised to 150 ℃ at about 15 seconds.
The area of the graphene electrothermal film 2 is 70% of the area of the bottom surface of the baking tray 1.
Example 3
Compared with the electric barbecue oven in embodiment 1, the electric barbecue oven is characterized in that the graphene electric heating film 2 comprises 3 layers of graphene and electrodes, the surface of the graphene electric heating film is a Polyimide (PI) insulating protection layer, and the temperature of the graphene electric heating film can be raised to 180 ℃ about 50 s.
The area of the graphene electrothermal film 2 is 90% of the area of the bottom surface of the baking tray 1.
Example 4
In the embodiment, as shown in fig. 2, compared with the electric oven of embodiment 1, the electric oven of the embodiment is different in that the right side of the baking tray is provided with an oil leakage port 9, and the bracket is provided with an oil receiving tray 10.
Comparative example 1
The graphene electrothermal film in the embodiment 1 is replaced by alloy foil, and the highest temperature and the lowest temperature in the adjacent 25cm 2 area are about 30 ℃ in the effective heating area of the baking tray through detection. Therefore, the uniformity of the surface of the baking tray of the electric barbecue oven manufactured by adopting the graphene electrothermal film is far better than that of the baking tray manufactured by adopting the modes of alloy foil and the like.
In addition, through detection, under the condition that the electric baking tray adopting the alloy foil is 10 seconds, the error of the control temperature and the set temperature reaches 68 ℃, so that the temperature control accuracy of the electric baking oven manufactured by adopting the graphene electric heating film is far higher than that of the electric baking oven adopting the aluminum alloy foil.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. The cooking device is characterized by comprising a container (1) and a graphene electrothermal film (2), wherein the graphene electrothermal film (2) is arranged on the bottom surface of the container (1), the graphene electrothermal film (2) comprises a graphene heating layer, an electrode and an insulating protective layer, the graphene heating layer is 3 layers of graphene, the insulating protective layer is arranged on the upper surface and the lower surface of the graphene heating layer, and the graphene electrothermal film (2) rises to 180 ℃ in 50 seconds;
The cooking device comprises an over-temperature protection switch, the over-temperature protection switch is connected with the graphene electrothermal film (2), and the temperature of the over-temperature protection switch is 145-180 ℃;
The cooking device comprises a supporting component (5), wherein the supporting component (5) is provided with a first conductive contact part (7), the container (1) is provided with a second conductive contact part (8), the second conductive contact part (8) is electrically communicated with the graphene electrothermal film (2), and the first conductive contact part (7) is electrically communicated with the second conductive contact part (8) when the container (1) is arranged on the supporting component (5).
2. The cooking device according to claim 1, wherein the area of the graphene electrothermal film (2) is 50% -100% of the area of the bottom surface of the container (1).
3. The cooking device of claim 2, wherein the electrode is disposed on a surface of the graphene heat-generating layer.
4. The cooking device of claim 2, wherein the electrodes are disposed on both sides of the graphene heat-generating layer.
5. Cooking device according to claim 2, wherein the material of the electrode is selected from silver, copper and/or aluminium.
6. Cooking device according to claim 1, characterized in that the cooking device comprises a temperature sensor (4), the temperature sensor (4) is connected with the graphene electrothermal film (2), and the temperature sensor (4) is arranged on the bottom surface of the graphene electrothermal film (2).
7. Cooking device according to claim 1, characterized in that it is provided with a bottom shell (3), said bottom shell (3) being located below said graphene electrothermal film (2), said bottom shell (3) being mounted on the bottom surface of said container (1).
8. The cooking device according to claim 6, wherein the support member (5) is provided with a temperature control system (6), and one end of the temperature sensor (4) is connected with the bottom surface of the graphene electrothermal film (2), and the other end is connected with the temperature control system (6).
9. Cooking device according to claim 1, wherein the container (1) is provided with an oil leakage opening (9), the oil leakage opening (9) being located at an edge position of the container (1).
10. Cooking device according to claim 9, characterized in that the cooking device comprises an oil receiving part (10), which oil receiving part (10) is detachably placed on the support part (5) in a position corresponding to the oil leakage opening (9).
11. Cooking device according to claim 1, wherein the container (1) is a baking pan, the container (1) is selected from a metal material or a glass material, a non-stick coating is sprayed on the surface of the container (1), and the non-stick coating is selected from a polytetrafluoroethylene coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030993.6A CN110662311B (en) | 2019-10-28 | 2019-10-28 | Graphene electric heating film heating cooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030993.6A CN110662311B (en) | 2019-10-28 | 2019-10-28 | Graphene electric heating film heating cooking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110662311A CN110662311A (en) | 2020-01-07 |
| CN110662311B true CN110662311B (en) | 2025-02-14 |
Family
ID=69041840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911030993.6A Active CN110662311B (en) | 2019-10-28 | 2019-10-28 | Graphene electric heating film heating cooking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110662311B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201515516U (en) * | 2009-09-25 | 2010-06-23 | 厦门索玛特节能科技有限公司 | Heating device and barbecue oven with heating device |
| CN108289347A (en) * | 2018-01-31 | 2018-07-17 | 无锡汉成新材料科技有限公司 | Electric radiant Heating Film, preparation method and applications |
| CN211128214U (en) * | 2019-10-28 | 2020-07-28 | 成都石墨烯应用产业技术研究院有限公司 | Graphene electrothermal film heating cooking device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104869676A (en) * | 2015-04-24 | 2015-08-26 | 冯冠平 | Low-voltage transparent electrothermal film and preparation process thereof |
| KR20170002715U (en) * | 2016-01-20 | 2017-07-31 | (주)세온 | Heating device for cooking |
| CN108777889A (en) * | 2018-07-07 | 2018-11-09 | 张迎秋 | The domestic energy-conserving electric appliance made in the way of graphene heated by electrothermal film |
-
2019
- 2019-10-28 CN CN201911030993.6A patent/CN110662311B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201515516U (en) * | 2009-09-25 | 2010-06-23 | 厦门索玛特节能科技有限公司 | Heating device and barbecue oven with heating device |
| CN108289347A (en) * | 2018-01-31 | 2018-07-17 | 无锡汉成新材料科技有限公司 | Electric radiant Heating Film, preparation method and applications |
| CN211128214U (en) * | 2019-10-28 | 2020-07-28 | 成都石墨烯应用产业技术研究院有限公司 | Graphene electrothermal film heating cooking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110662311A (en) | 2020-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201515516U (en) | Heating device and barbecue oven with heating device | |
| US10798786B2 (en) | Cooking appliance with a cooking plate and with a heating device thereunder | |
| CN203468382U (en) | Frying and baking machine with even heating | |
| CN211128214U (en) | Graphene electrothermal film heating cooking device | |
| EP3245921A1 (en) | Electrothermal film layer manufacturing method, electrothermal film layer, electrically-heating plate, and cooking utensil | |
| CN110662311B (en) | Graphene electric heating film heating cooking device | |
| KR101363359B1 (en) | Radiant panel of anodized aluminium with electric resistance of stainless | |
| CN216060235U (en) | Electric oven adopting planar heating body heating technology | |
| CN203619378U (en) | Stereo heating electric oven | |
| CN112762486A (en) | Graphene far-infrared external heating electric stove | |
| CN215773613U (en) | Planar heating body heating electric oven | |
| CN204445321U (en) | A kind of heating kettle body structure and electric frying pan | |
| KR20090088024A (en) | Grill with Far Infrared Glass Heater | |
| CN114727722A (en) | Electric hotplate using heat-generating paint | |
| CN2691267Y (en) | Far infra-red, electric heating and radiation type baker | |
| CN204561882U (en) | Electric baking pan | |
| CN208192764U (en) | A kind of electric cooking pot tool improving heat distribution | |
| CN209655374U (en) | A kind of electric ceramic heaters location structure | |
| CN210602260U (en) | Device for heating by using electrothermal film and electric heating plate | |
| CN216702339U (en) | Baking oven | |
| CN216393843U (en) | oven | |
| CN204445471U (en) | Heat-generating disc and cooking apparatus | |
| CN113518482B (en) | Magnetic conduction heating structure and cooking utensil | |
| CN217390491U (en) | Electric saucepan equipment | |
| KR102552263B1 (en) | A side heating penetration type cooker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240912 Address after: 518000 Smart Home Phase 2, No. 76 Baohe Avenue, Baolong Community, Baolong Street, Longgang District, Shenzhen, Guangdong Province, China, 2B703 Applicant after: GRAHOPE NEW MATERIALS TECHNOLOGIES Inc. Country or region after: China Address before: 611134 room 1-25, 9th floor, building 3, 77 Leshan Road, Taiji community, Gongping Street office, Wenjiang District, Chengdu, Sichuan Province Applicant before: CHENGDU GRAPHENE APPLICATION INSTITUTE OF INDUSTRIAL TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |