CN117528850A

CN117528850A - Heating plate

Info

Publication number: CN117528850A
Application number: CN202311582116.6A
Authority: CN
Inventors: 唐少春; 杜洋; 韩井闯
Original assignee: HAIAN INSTITUTE OF HIGH-TECH RESEARCH NANJING UNIVERSITY
Current assignee: HAIAN INSTITUTE OF HIGH-TECH RESEARCH NANJING UNIVERSITY
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-02-06

Abstract

The invention discloses a composite heating plate which comprises a first soaking layer, a first protective layer, a heating layer, a second protective layer, a second soaking layer and other five-layer structures. Wherein the heating layer main body adopts a flexible electric heating carbon fiber composite film material. The composite heating plate has the advantages of planar heating, high heating rate, infrared radiation heating and the like, and the energy-saving amplitude can reach 30%. The temperature of the composite heating plate can be regulated according to requirements, and the composite heating plate can be used as a structural member in various fields such as material baking, machining, equipment heating and the like.

Description

Heating plate

Technical Field

The invention belongs to the technical field of heating plates, and particularly relates to a high-efficiency energy-saving composite heating plate.

Background

The working principle of the traditional resistance wire heating plate is mainly an electric heating phenomenon after metal is electrified, after current passes through a conductor, the current can generate certain heat and conduct through the conductor, namely, the resistance wire can emit heat and provide heat energy after being electrified. However, the traditional resistance wire has poor durability and cannot work for a long time; the heat loss is large, and the heat energy can not be effectively utilized; the heating speed is relatively slow, and the heating device is not suitable for the occasion of rapid heating; the wire dress generates heat, the inhomogeneous scheduling problem of heat. Based on this, this application has designed a high-efficient energy-conserving compound hot plate.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an efficient and energy-saving heating plate.

The aim of the invention is achieved by the following technical scheme: a composite heating plate is characterized by comprising a first soaking layer, a first protective layer, a heating layer, a second protective layer and a second soaking layer which are sequentially arranged, wherein the heating layer comprises at least two conducting joints, a plurality of carbon fiber films and wires, the conducting joints and the carbon fiber films are connected in parallel by the wires, the first soaking layer and the heating layer are protected and separated by the first protective layer, and the second soaking layer and the heating layer are protected and separated by the second protective layer.

Preferably, the first protective layer and the second protective layer are polyimide films, the thickness is 0.2-0.4mm, and one side is provided with viscose.

Preferably, the heating layer main body is made of flexible electric heating carbon fiber composite film material.

Preferably, the heating layer is formed by connecting three sections of flexible electric heating carbon fiber composite film materials with sheet resistance of 1-10 ohms per square centimeter in parallel, and copper wires with the width of 0.5 millimeter are used as leads for connection, and silver paste is used as an adhesive.

Preferably, the soaking layer is an aluminum plate, and the thickness is 5mm.

Preferably, the protective layer and the soaking layer are directly bonded through high-temperature-resistant protective hot melt adhesive.

Preferably, the soaking layer is provided with four circular hole grooves which are distributed around the soaking layer.

Preferably, the two soaking layers are fixed by screws in the four circular hole grooves, and the heating layers are uniformly embedded in the two soaking plates.

Compared with the prior art, the invention has the following advantages and effects:

1. the flexible electric heating carbon fiber composite film material adopted by the application has the advantages of being thin, fast in temperature rise, uniform in temperature distribution and strong in stability, has no electromagnetic interference and harm, and the generated heat radiation wavelength is beneficial to human health;

2. the heating plate is different from the traditional metal resistance heating plate, adopts a carbon fiber film as a heating layer, has the advantages of planar heating, high heating rate, infrared radiation heating and the like, and has an energy-saving amplitude of up to 30% compared with the traditional heating wire heating plate;

3. the heating plate has the power density of 3W/square centimeter, the heating temperature of 250 ℃, and the structure size of the heating plate can be adjusted, and the heating plate can be used as a structural member in the field of plane heating such as hot pressing, baking and the like.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a view showing an overall construction of a heating plate according to the present invention;

FIG. 2 is a cross-sectional hierarchical view of a heating plate according to the present invention;

FIG. 3 is a view showing a constitution of a heating element of a heating plate of the present invention;

in the figure: 1. a soaking plate; 2. a protective layer; 3. a heating layer; 4. a carbon fiber film; 5. copper wire; 6. a conductive interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some of the embodiments of the present invention, but the implementation manners of the present invention are not limited thereto. Those skilled in the art can, with the benefit of this disclosure, suitably modify the process parameters to achieve this. It is expressly noted that all such similar substitutions and modifications will be apparent to those skilled in the art, and are deemed to be included in the present invention. The embodiments described below are only some, but not all, embodiments of the invention. While the method and product of the present invention have been described in terms of preferred embodiments, it will be apparent to those skilled in the relevant art that the invention can be practiced and practiced with modification and alteration and combination of the methods described herein without departing from the spirit and scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.

Example 1

As shown in fig. 1-3, the present application provides a technical solution: a composite heating plate is characterized by comprising a first soaking layer, a first protective layer, a heating layer, a second protective layer and a second soaking layer which are sequentially arranged, wherein the heating layer comprises at least two conducting joints, a plurality of carbon fiber films and wires, the conducting joints and the carbon fiber films are connected in parallel by the wires, the first soaking layer and the heating layer are protected and separated by the first protective layer, and the second soaking layer and the heating layer are protected and separated by the second protective layer.

Furthermore, the first protective layer and the second protective layer are polyimide films, the thickness is 0.2mm, and one side is provided with viscose.

Further, the heating layer is made of flexible electric heating carbon fiber according with a film material.

Furthermore, the heating body is formed by connecting three sections of flexible electric heating carbon fiber composite film materials 4 with sheet resistance of 5 ohms per square centimeter in parallel, and a copper wire 5 with the width of 0.5 millimeter is used as a lead.

Further, the soaking layer is an aluminum plate, and the thickness is 5mm.

Furthermore, the protective layer and the soaking layer are directly bonded through high-temperature-resistant protective hot melt adhesive.

Further, the soaking layer is provided with four circular hole grooves which are distributed around the soaking layer.

Furthermore, the two soaking layers are fixed through screws in the four circular hole grooves, and the heating layers are uniformly embedded in the two soaking plates.

The heating plate has the size of 10cm x 10cm, can be connected with 220V voltage, and has the power of 100W/m ² 。

The working principle is as follows: the carbon nano film has excellent conductive performance, and is electrified so as to generate electrothermal performance response; the aluminum plate is used as the soaking layer and has high heat transfer efficiency, heat generated by the heating layer can be effectively transferred to the working interface, and meanwhile, the temperature sensor is arranged to monitor the heating temperature in real time, so that the implementation of heating work is conveniently mastered.

Example 2

In this embodiment, the composite heating panel of the present invention is characterized in that: the composite heating plate comprises a heating layer and a soaking layer, wherein the heating layer is of a three-layer structure and consists of a first protection layer 2, a heating body 3 and a second protection layer 2, the soaking layer 1 is of an upper-lower two-layer structure, and the heating layer is inlaid in the two soaking layers.

Furthermore, the first protective layer and the second protective layer are polyimide films, the thickness is 0.4mm, and one side is provided with viscose.

Further, the heating body is made of flexible electric heating carbon fiber according with a film material.

Furthermore, the heating body is formed by connecting three sections of flexible electric heating carbon fiber composite film materials 4 with sheet resistance of 10 ohms per square centimeter in parallel, and a copper wire 5 with the width of 0.5 millimeter is used as a lead.

Further, the soaking layer is an aluminum plate, and the thickness is 10mm.

The heating plate has a size of 50cm and 50cm, can be connected with 220V voltage, and has a power of 500W/m ² 。

The foregoing is merely exemplary of the application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the application and are intended to be comprehended within the scope of the application.

Claims

1. A composite heating panel, comprising, in order: first soaking layer, first protective layer, layer that generates heat, second protective layer and second soaking layer: the heating layer comprises at least two conducting joints, a plurality of carbon fiber films and a wire, wherein the conducting joints are connected with the carbon fiber films in parallel by the wire, the first soaking layer is protected and separated from the heating layer by a first protection layer, and the second soaking layer is protected and separated from the heating layer by a second protection layer.

2. A composite heating panel according to claim 1, wherein: the first protective layer and the second protective layer are polyimide films, the thickness is 0.2-0.4mm, and one side of each protective layer is provided with viscose.

3. A composite heating panel according to claim 1, wherein: the heating layer main body is made of a flexible electric heating carbon fiber composite film material.

4. A composite heating panel according to claim 3, wherein: the heating layer is formed by connecting three sections of flexible electric heating carbon fiber composite film materials with sheet resistance of 1-10 ohm/square centimeter in parallel, and is formed by adopting copper wires with the width of 0.5 millimeter as leads to be connected and silver paste as an adhesive.

5. A composite heating panel according to claim 1, wherein: the soaking layer is an aluminum plate, and the thickness is 5mm.

6. A composite heating panel according to claim 1, wherein: the protective layer and the soaking layer are directly glued by high-temperature-resistant protective hot melt adhesive.

7. A composite heating panel according to claim 1, wherein: the soaking layer is provided with four circular hole grooves which are distributed around the soaking layer.

8. A composite heating panel according to claim 1, wherein: the two soaking layers are fixed through screws in the four circular holes and the heating layers are uniformly embedded in the two soaking plates.