CN214563432U - Heating container - Google Patents

Abstract

The invention discloses: a heating container comprises a container body and a heating element wrapping the container body and heating the container body, wherein the heating element at least comprises a first carbon nano heating element and a second carbon nano heating element, and the first carbon nano heating element and the second carbon nano heating element are connected in series or in parallel through a flexible connecting piece.

Description

Heating container

Technical Field

The invention relates to the technical field of household appliances, in particular to a heating container with a carbon nano heating element.

Background

The carbon nanometer heating element comprises a carbon nanometer film layer and an insulating layer wrapping the carbon nanometer film layer, and the carbon nanometer film layer and the insulating layer are flexible layers and can be bent and folded, so that the surfaces of various heating containers can be conveniently attached to heat, and the carbon nanometer heating element is convenient to carry and wide in application range. In order to improve the heating power of the carbon nano-heating element, the prior art provides a two-dimensional nano-carbon heating element (patent number: 2011521137385.2) and a surface electric heater (CN201820258078.7), and the above-mentioned technology does not provide a solution for the assembly of a plurality of carbon nano-heating elements.

Disclosure of Invention

The invention aims to provide a heating container which is convenient for installing a heating element and improves the heating efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme: a heating container comprises a container body and a heating element wrapping the container body and heating the container body, wherein the heating element at least comprises a first carbon nano heating element and a second carbon nano heating element, and the first carbon nano heating element and the second carbon nano heating element are connected in series or in parallel through a flexible connecting piece.

Further, the first carbon nano-heating element and the second carbon nano-heating element heat different surfaces of the container body.

Further, the container body is cubic, the middle part of the first carbon nano-heating element is arranged at the bottom of the container body, and at least one end of the first carbon nano-heating element extends upwards and is arranged at the side part of the container body.

Further, the first carbon nano-heating element is arranged at the bottom of the container body, and the second carbon nano-heating element is arranged at the side of the container body.

Further, the container body is cylindrical, the first carbon nano heating element is circular, and the second carbon nano heating element is square.

Further, the flexible connecting piece comprises an electrode, an isolation layer and a connecting end, wherein the isolation layer and the connecting end are wrapped on the electrode to be isolated. Preferably, the isolation layer is a polyimide film.

Furthermore, the connecting end is a first connector, the heating element is provided with a second connector matched with the first connector, and the first connector and the second connector are connected in an inserting manner.

Further, carbon nanometer heating element is including the insulating layer that is used for the carbon nanometer rete and the parcel carbon nanometer rete of generating heat with the isolation, first carbon nanometer heating element's carbon nanometer rete with second carbon nanometer heating element's carbon nanometer rete passes through the parallelly connected or series arrangement of electrode, first carbon nanometer heating element and second carbon nanometer heating element share same insulating layer, flexible connecting piece includes electrode and part the insulating layer.

Further, carbon nanometer heating element includes two carbon nanometer retes that are used for generating heat and wraps up the insulating layer of carbon nanometer rete with the isolation, two carbon nanometer retes stack the setting, and carbon nanometer rete has a plurality of carbon nanotube along carbon nanometer rete interval setting, carbon nanotube dislocation set on two carbon nanometer retes is with the density of generating heat of increase carbon nanometer heating element.

Further, the carbon nano heating element is detachably connected with the container body; or the carbon nano heating element is connected with the container body in a bonding way; or the first carbon nano-heating element and the second carbon nano-heating element heat different surfaces of the container body.

After the technical scheme is adopted, the invention has the following advantages:

1. firstly, the texture of carbon nanometer rete and insulating layer is soft to both can fold and crooked lamellar structure, and not only the whole occupation space of carbon nanometer heating element is little, the quality is light, conveniently wraps up in addition or hugs closely various heating vessel and heats, and application scope is wide, does benefit to and goes out to carry, and simultaneously, the electrothermal conversion rate of carbon nanometer rete is high, has guaranteed heating efficiency. Secondly, the carbon nano-film layer is heated through the carbon nano-tubes with the tubular structures, the flowing length of current on the carbon nano-film layer is increased, the heating efficiency is improved, and the whole heating is promoted to be uniform.

2. When the carbon nanotubes on the carbon nanotube film are arranged in parallel, the length and the width of the carbon nanotubes on the same carbon nanotube film are equal. The over-high current caused by the over-low resistance of a certain carbon nano tube is avoided, the over-high local heat productivity is prevented, and the uniform heat productivity is ensured. When the carbon nanotubes on the carbon nanotube film are serially arranged, the length and width of each carbon nanotube can be freely arranged and adjusted according to the outer surface of the carbon nano-heating element.

3. Two independent carbon nanometer heating elements pass through the flexible connector to be connected, when the container has a plurality of faces for the heating element can heat to a plurality of faces, improves heating efficiency, and can control different heating element work according to the selection of function, and in addition, the installation of heating element on the container is also convenient for to flexible connector.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is an exploded view of a carbon nano-heating element in accordance with one embodiment;

FIG. 2 is a cross-sectional view of a carbon nano-heating element in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram of the internal structure of a carbon nano-heating element according to a first embodiment of the present invention;

FIG. 4 is an exploded view of a carbon nano-heating element according to the first embodiment (II);

FIG. 5 is a structural view of a heating vessel in the second embodiment;

FIG. 6 is a structural view of a heating vessel in the third embodiment;

FIG. 7 is an exploded view of a carbon nano-heating element according to a third embodiment of the present invention;

FIG. 8 is a structural view of a heating element according to a third embodiment;

FIG. 9 is an exploded view of a heating element according to a third embodiment of the present invention;

Detailed Description

Example one

As shown in fig. 1 to fig. 3, the present embodiment provides a carbon nano-heating element, which includes two carbon nano-film layers 1 for generating heat and an insulating layer 2 wrapping the carbon nano-film layers 1 for isolation, the two carbon nano-film layers 1 are stacked, the carbon nano-film layer 1 has a plurality of carbon nanotubes 11 arranged along the carbon nano-film layers 1 at intervals, and the carbon nanotubes 11 on the two carbon nano-film layers 1 are arranged in a staggered manner to increase the heat generation density of the carbon nano-heating element.

Firstly, the texture of carbon nanometer rete 1 and insulating layer 2 is soft to both can fold and crooked lamellar structure, and not only the whole occupation space of carbon nanometer heating element is little, the quality is light, conveniently wraps up in addition or hugs closely various containers and heats, and application scope is wide, does benefit to going out to carry, and simultaneously, carbon nanometer rete 1's electrothermal conversion rate is high, has guaranteed heating efficiency. Secondly, carbon nano-film layer 1 heats through tubular structure's carbon nanotube 11, and increase current flow length on carbon nano-film layer 1 improves heating efficiency, promotes its whole even that generates heat, and simultaneously, carbon nanotube 11 sets up at the interval on carbon nano-film layer 1, avoids producing the creepage between the adjacent carbon nanotube 11, guarantees whole carbon nano-heating element's safe in utilization. Finally, two carbon nanometer rete 1 stack settings, so carbon nanotube 11 on the carbon nanometer heating element of unit area is more, has increased whole carbon nanometer heating element's heating power, simultaneously, carbon nanotube 11 dislocation set on two carbon nanometer rete 1, and carbon nanotube 11 on two carbon nanometer rete 1 is not sheltered from in the vertical direction of carbon nanometer rete 1 completely promptly, has increased the whole heating density of carbon nanometer heating element surface, and it is more even to generate heat.

In this embodiment, the carbon nanotubes 11 on the carbon nanotube film layer 1 are arranged side by side along the carbon nanotube film layer 1, and the arrangement directions of the carbon nanotubes 11 on the two carbon nanotube film layers 1 are the same. A plurality of carbon nanotube 11 set up side by side on same carbon nanometer rete 1, not only easily guarantee the interval between the carbon nanotube 11, make things convenient for processing and the installation of carbon nanometer rete 1, and the length sum of carbon nanotube 11 is longer on single carbon nanometer rete 1, do benefit to the heating efficiency who improves single carbon nanometer rete 1, and simultaneously, the carbon nanotube 11 on two carbon nanometer rete 1 sets up the direction the same, not only two carbon nanometer rete 1's shape structure is the same, can be with batch rapid tooling, and connect electrical components and parts on two carbon nanometer rete 1 to be located same one side or relative both sides of carbon nanometer heating element, do benefit to the reliable sealed of relative edge of insulating layer 2.

Specifically, the carbon nano-heating element is a planar sheet structure after being unfolded, and projections of the carbon nanotubes 11 on the two carbon nano-film layers 1 in a direction perpendicular to the carbon nano-heating element are not shielded from each other. In the vertical direction of the carbon nano-film layer 1, the carbon nanotubes 11 on one carbon nano-film layer 1 can be completely exposed from the space between the carbon nanotubes 11 on the other carbon nano-film layer 1, so that the phenomenon that the two are shielded and overheated to cause uneven heating is avoided, and the heating density of the carbon nano-heating element is maximized.

It is understood that the carbon nanotubes 11 on the two carbon nanotube film layers 1 may also be arranged to intersect in the projection perpendicular to the direction of the carbon nanotube heating element. The carbon nanotube 11 on two carbon nanometer rete 1 sets up the direction difference promptly, avoids whole carbon nanometer heating element to feel with folding the bending in the equidirectional not too big that differs, has guaranteed carbon nanometer heating element's intensity, easily keeps crooked folding state simultaneously, and convenient design, carbon nanometer rete 1 can be laminated with the container of various shapes.

In this embodiment, the two carbon nano-film layers 1 may be arranged in parallel, so that the two carbon nano-film layers 1 are independent from each other, thereby preventing the carbon nano-heating element from being completely unusable after one of the carbon nano-film layers 1 is damaged, and improving reliability. Certainly, two carbon nano-film layers 1 can also be arranged in series, so that the structure is simpler and the wiring is more convenient.

In this embodiment, the carbon nanotubes 11 on the carbon nanotube film layer 1 are arranged in parallel, and in order to ensure uniform heat generation, the length and the width of the carbon nanotubes 11 on the same carbon nanotube film layer 1 are equal. Excessive current caused by too small resistance of a carbon nanotube 11 is avoided, and excessive local heat generation is prevented. Of course, the carbon nanotubes 11 on the carbon nanotube film layer 1 may also be arranged in series, so that the length and width of each carbon nanotube 11 can be freely set and adjusted according to the outer surface of the carbon nanotube heating element.

In this embodiment, in order to prevent the two adjacent carbon nanotubes 11 from being too close to each other to cause electric leakage, the minimum distance S between the two adjacent carbon nanotubes 11 on the carbon nanotube film 1 is not less than 4 mm.

Meanwhile, in order to ensure the use safety, the area of the insulating layer 2 is larger than that of the carbon nano film layer 1, and the edge distance D between the carbon nano film layer 1 and the insulating layer 2 is more than or equal to 4 mm. Thereby insulating layer 2 can cover the carbon nanotube 11 that generates heat completely, and the security is good, simultaneously, also does benefit to the edge of insulating layer 2 and can glue sealedly in the outside of carbon nano film layer 1, prevents that the high temperature of carbon nano film layer 1 from causing the sealed inefficacy of insulating layer 2.

The carbon nano-film layer 1 further comprises an electrode 12 and a lead 13, one end of the lead 13 is electrically connected with the electrode 12, the other end of the lead 13 extends out of the insulating layer 2 along the carbon nano-film layer 1, the carbon nano-tubes 11 of the same carbon nano-film layer 1 are all in electrical contact with the electrode 12, centralized electrification of the carbon nano-tubes 11 is facilitated, and meanwhile, in order to guarantee safety in use, the distance L between the connection position of the lead 13 and the electrode 12 and the edge of the insulating layer 2 is larger than or equal to 8 mm.

In this embodiment, the insulating layer 2 includes outer insulating layer 21 and inner insulating layer 22, and inner insulating layer 22 is located between two adjacent carbon nano film layers 1 to the creepage takes place for carbon nanotube 11 on two carbon nano film layers 1 of separation, and the security is high, and simultaneously, outer insulating layer 21 covers the side outwards on carbon nano film layer 1, prevents carbon nanotube 11 on the user direct contact carbon nano film layer 1.

To further ensure the safety of the outer insulating layer 21, the outer insulating layer 21 includes a base insulating layer 211, a first additional insulating layer 212, and a second additional insulating layer 213 distributed from inside to outside, and the outer insulating layer 21 abuts against the carbon nano film layer 1 through the base insulating layer 211. Not only can the outer insulating layer 21 be effectively prevented from being easily worn out, but also the base insulating layer 211, the first additional insulating layer 212 and the second additional insulating layer 213 can be made of different materials to realize different functions, so that the user experience is better.

In this embodiment, insulating layer 2 is the polyimide film, and not only high temperature resistance is good, and the material is soft and thinner moreover, and is better with the surface laminating of container after folding. Of course, as shown in fig. 4, the insulating layer 2 may be made of high temperature glass 3, and the high temperature glass 3 may specifically be borosilicate glass or quartz glass, and it is understood that the insulating layer 2 may be partially made of polyimide film and partially made of high temperature glass 3.

Furthermore, the carbon nanotubes of the same carbon nanotube film layer are arranged in parallel or in series; or, the carbon nano-heating element at least comprises a first carbon nano-tube, a second carbon nano-tube, a third carbon nano-tube and a fourth carbon nano-tube, the first carbon nano-tube and the second carbon nano-tube are positioned on the first carbon nano-film layer, the third carbon nano-tube and the fourth carbon nano-tube are positioned on the second carbon nano-film layer, the first carbon nano-tube and the third carbon nano-tube are connected in parallel or in series, and the second carbon nano-tube and the fourth carbon nano-tube are connected in parallel or in series.

Example two

As shown in fig. 5, the present embodiment provides a heating container, which includes a container body 4, and further includes any one of the carbon nano-heating elements a, which wraps the container body 4 and heats the container body 4. Thereby heating container's whole is small, conveniently carries, and the molding can be more various, and simultaneously, carbon nanometer heating element an is inseparabler with vessel 4's contact, and area of contact is big, not only can heat vessel 4's bottom surface, can also heat vessel 4's lateral wall, and heating efficiency is high, and the heating is more even.

Further, the carbon nano heating element is detachably connected with the container body. By adopting the technical scheme, the maintenance cost between the heating element and the container body is reduced.

Reference may be made to embodiments one and three for other content not described in this embodiment.

Example 3:

as shown in fig. 6 to 9, a heating container includes a container body (including glass, metal, ceramic, etc.) and a heating element 7 wrapping and heating the container body, where the heating element 7 includes at least a first carbon nano-heating element 112 and a second carbon nano-heating element 111, and the first carbon nano-heating element and the second carbon nano-heating element are connected in series or in parallel through a flexible connection member 9. Preferably, the first carbon nano-heating element 112 and the second carbon nano-heating element 111 heat different surfaces of the container body, for example, the first carbon nano-heating element is disposed at the bottom of the container body, and the second carbon nano-heating element is disposed at the side of the container body. The carbon nano heating element comprises a carbon nano film layer for generating heat and an insulating layer wrapping the carbon nano film layer for isolation. The carbon nanomembrane layer may be composed of a single film or a plurality of films.

Adopt above-mentioned technical scheme, two independent carbon nanometer heating element pass through flexible connector and connect, when the container has a plurality of faces for heating element can heat to a plurality of faces, improves heating efficiency, and can control different heating element work according to the selection of function, and in addition, flexible connector also is convenient for the installation of heating element on the container.

Specifically, when the container body is cuboidal (cube-like or cube-like), the middle of the first carbon nano-heating element is disposed at the bottom of the container body, and at least one end of the first carbon nano-heating element extends upward to be disposed at the side of the container body. At this time, the four sides of the container body may be heated by the first carbon nano-heating element 112 and the second carbon nano-heating element 111, respectively, and of course, a third carbon nano-heating element may be added. The resistance values of the different carbon nano-heating elements in the embodiment may be the same or different.

When the container body is cylindrical, the first carbon nano heating element is circular, and the second carbon nano heating element is square. At this time, the second carbon nano-heating element is wrapped on the side wall of the container body.

Further, the flexible connector comprises an electrode 92, an isolation layer 91 wrapping the electrode for isolation, and a connection end. Preferably, the isolation layer is a polyimide film.

Specifically, for the convenience of maintenance, the link is first connector, heating element be equipped with first connector complex second connector, first connector and second connector plug-in connection. Through setting up the connector, the connection and the plug of two heating element of being convenient for, convenient maintenance and installation. Meanwhile, the number of the heating elements can be conveniently reduced according to different product positioning by manufacturers.

In another structure of the flexible connector, the carbon nano-film layer of the first carbon nano-heating element and the carbon nano-film layer of the second carbon nano-heating element are connected in parallel or in series through electrodes, the first carbon nano-heating element and the second carbon nano-heating element share the same insulating layer, and the flexible connector comprises the electrodes and part of the insulating layer. At this moment, the insulating layer is the isolation layer, seals through using high temperature glue all around of carbon nanometer rete for two heating element's carbon nanometer rete are kept apart, and pass through electrode connection, and like this, two heating element's carbon nanometer rete have formed two zone of heating through same insulating layer, can be to the heating surface of difference, in the aspect of the product leaves the factory, and is more swift, for above technical scheme, can reduce the assembly process.

The carbon nano-heating element comprises two carbon nano-film layers for generating heat and an insulating layer for wrapping the carbon nano-film layers to isolate, the two carbon nano-film layers are stacked and arranged, the carbon nano-film layers are provided with a plurality of carbon nano-tubes arranged at intervals along the carbon nano-film layers, and the carbon nano-tubes on the two carbon nano-film layers are arranged in a staggered manner to increase the heating density of the carbon nano-heating element.

The carbon nano heating element is detachably connected with the container body; or the carbon nano heating element is connected with the container body in an adhesion mode.

The heating container may be a health preserving kettle, an electric lunch box, an electric kettle, etc., for example, the electric lunch box includes a container body 4 and a bottom cover 8, the bottom cover is wrapped outside the container body, and the heating element 7 is located between the container body 4 and the bottom cover 8.

Reference may be made to embodiments one and two for other content not described in this embodiment.

The traditional metal heating wire and heating bar are generally used by being packaged in a tube through MgO powder, and the metal heating wire or the carbon fiber heating wire is also made into a tubular shape and then fixed on a container, such as an electric kettle, a soybean milk machine and other products. However, the carbon nanotube film is a heating element which can uniformly heat as thin as 5um, and the carbon nanotube film is soft and can be bent at will, so that the electrothermal conversion efficiency of the carbon nanotube film is more than 99% when the carbon nanotube film is used as a heating element; wherein the electrothermal radiation efficiency reaches 60%; the temperature of the heating body is much lower than that of the resistance wire under the same temperature; the heating temperature of the electric heating element can reach 1200 ℃ in a closed environment; and the heat conductivity coefficient of the ceramic material is more than 5000W/mk, so that the ceramic material can uniformly generate heat.

Because the carbon nano tube film is very thin and only about 5um-10um, the thermal inertia of the electric heating element of the carbon nano film is small, and the heat conduction is fast. The surface is heated and the heating is uniform, the heat transfer temperature difference is small when the heating element is used, and the heated object is not easy to stick on the pan.

The carbon nanotube film can be provided with a temperature detection and protection device, such as a temperature sensor, a temperature controller, a fuse link and the like, after being installed, so that the temperature of the heating element can be detected, the power of the heating element can be controlled, the temperature of the heating element can be prevented from being too high, and the situations of dry burning, overheating, bottom pasting in a heated container and the like of a product can be avoided.

The carbon nanotube heating element can be disposed on a spherical or cylindrical-like container due to its flexible and heel-shaped characteristics, and of course, can be disposed on a plane or a rectangular container, and the rectangular container should have a round angle larger than R0.5. The electric rice box is suitable for being arranged on a spherical body and a plane, such as the bottom surface and the side surface of a cup body of a soybean milk machine, the bottom surface and the side surface of an electric rice cooker and the bottom side surface of the electric rice box; the effect of three-dimensional heating is achieved.

The carbon nanotube heating element can be directly arranged on the insulating surface of the non-metal container, such as on a transparent glass surface and a ceramic plate, and the carbon nanotube is directly packaged on the insulating container.

Thus, not only the space occupied for heating is reduced, but also the heat capacity of the whole heating part is reduced and the volume is reduced; the heat transfer efficiency is improved. And the heat transfer area can be enlarged by utilizing the carbon nano tube, so that the temperature of a heating part is reduced and the pan pasting is lightened under the condition of the same heat transfer power.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims (10)

1. A heating container comprises a container body and a heating element wrapping the container body and heating the container body, and is characterized in that the heating element at least comprises a first carbon nano-heating element and a second carbon nano-heating element which are connected in series or in parallel through a flexible connecting piece.

2. The heating vessel of claim 1, wherein the first and second carbon nano-heating elements heat different faces of the vessel body.

3. The heating container as claimed in claim 2, wherein the container body has a cubic shape, the middle portion of the first carbon nano-heating element is provided at the bottom of the container body, and at least one end of the first carbon nano-heating element extends upward to be provided at a side portion of the container body.

4. The heating vessel according to claim 2, wherein the vessel body has a cylindrical shape, the first carbon nano-heating element has a circular shape, and the second carbon nano-heating element has a square shape.

5. The heating vessel as claimed in any one of claims 1 to 4, wherein the flexible connecting member comprises an electrode, a separation layer wrapping the electrode for separation, and a connecting end.

6. A heating vessel according to claim 5, wherein said barrier layer is a polyimide film.

7. A heating vessel according to claim 5, wherein the connecting end is a first connecting head, the heating element is provided with a second connecting head which cooperates with the first connecting head, and the first connecting head and the second connecting head are plug-connected.

8. The heating container as claimed in any one of claims 1 to 4, wherein the carbon nano-heating element comprises a carbon nano-film layer for generating heat and an insulating layer wrapping the carbon nano-film layer for isolation, the carbon nano-film layer of the first carbon nano-heating element and the carbon nano-film layer of the second carbon nano-heating element are arranged in parallel or in series by an electrode, the first carbon nano-heating element and the second carbon nano-heating element share the same insulating layer, and the flexible connecting member comprises an electrode and a part of the insulating layer.

9. The heating container as claimed in claim 1, wherein the carbon nano-heating element comprises two carbon nano-film layers for generating heat and an insulating layer for wrapping the carbon nano-film layers to separate the two carbon nano-film layers, the two carbon nano-film layers are stacked, the carbon nano-film layer has a plurality of carbon nanotubes spaced along the carbon nano-film layers, and the carbon nanotubes on the two carbon nano-film layers are arranged in a staggered manner to increase the heating density of the carbon nano-heating element.

10. The heating vessel of claim 1, wherein the carbon nano-heating element is removably connected to the vessel body; or the carbon nano heating element is connected with the container body in a bonding way; or the first carbon nano-heating element and the second carbon nano-heating element heat different surfaces of the container body.

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