CN111278176A - Graphene heating film and graphene heating device - Google Patents
Graphene heating film and graphene heating device Download PDFInfo
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- CN111278176A CN111278176A CN202010296814.XA CN202010296814A CN111278176A CN 111278176 A CN111278176 A CN 111278176A CN 202010296814 A CN202010296814 A CN 202010296814A CN 111278176 A CN111278176 A CN 111278176A
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- 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
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
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Abstract
The invention provides a graphene heating film which comprises a carrier and a plurality of graphene heating coatings coated on the carrier in parallel, wherein a high-molecular insulating film is coated on the graphene heating coatings in a hot-pressing manner; electrode strips are arranged at the bottoms of two ends of any graphene heating coating, the electrode strips are electrically connected with the graphene heating coating, and graphene strips for preventing the electrode strips from contacting with a carrier are arranged between the electrode strips and the carrier; the graphene heating film is provided with at least one pair of electrode holes, the electrode holes are arranged at two ends of the graphene heating film respectively and penetrate through the graphene heating film, and when the electrode holes are sleeved with electrode rods, the electrode current-carrying strips are electrically connected with the electrode rods. The graphene heating film disclosed by the invention can ensure that the graphene heating film is fixed in a graphene heating device, and also can ensure good conductivity between the graphene heating film and an electrode rod, and is safe and reliable in current carrying. The invention further provides a graphene heating device.
Description
Technical Field
The invention relates to the technical field of nano materials, in particular to a graphene heating film and a graphene heating device.
Background
Graphene is a two-dimensional nanomaterial with a hexagonal honeycomb lattice structure formed by carbon atoms through sp2 hybrid orbitals and only one layer of carbon atoms thick. The unique structure of graphene gives it a number of excellent properties, such as a high theoretical specific surface area (2630 m)2G) and ultrahigh electron mobility (200000 cm)2/v.s), high thermal conductivity (5000W/m.K), high Young's modulus (1.0TPa), and high light transmittance (97.7%), among others. By virtue of the advantages of the structure and the performance of the graphene, the graphene has a huge application prospect in the fields of energy storage and conversion devices, nano-electronic devices, multifunctional sensors, flexible wearable electronics, electromagnetic shielding, corrosion prevention and the like. In view of the flexibility and the conductive characteristic of graphene, the graphene slurry is added into the printing ink to prepare the conductive printing ink, and the graphene heating layer is further prepared by spraying and drying the printing ink to prepare the graphene heating body.
Along with the trend of people to good and healthy life, the traditional heating system is improved, more economic and clean alternative energy is searched, and the development of a novel green low-carbon heating system is reluctant. An electric heating technology based on graphene infrared emission performance, namely graphene-based infrared heating ink and an infrared heating body technology thereof, provides an effective solution for solving the problems. Compared with the traditional heating methods such as coal burning, steam, hot air and resistance, the graphene heating method has the advantages of high heating speed, high electricity-heat conversion rate, automatic temperature control, zone control, stable heating, no noise in the heating process, low operation cost, relatively uniform heating, small occupied area, low investment and production cost, long service life, high working efficiency and the like, and is more beneficial to popularization and application. The energy-saving heating device replaces the traditional heating, has particularly remarkable electricity-saving effect, can generally save electricity by about 30 percent, and even can achieve 60 to 70 percent in individual occasions.
The most central part of devices such as graphene infrared heating murals, wallpaper, floors and the like is the graphene heating plate/functional layer. In the prior art, graphene is generally prepared into graphene slurry, ink or paint, and then prepared into a graphene heating coating layer by a printing method. However, the graphene heating film and the heating device prepared by the methods have the problems that the functional layer has poor thickness controllability, large sheet resistance and uneven heat generation, is difficult to meet practical application, the structure of the graphene heating layer is unstable, heat generation is easy to break for a long time, the service life is short, and the like.
Disclosure of Invention
In view of this, the invention provides a graphene heating film, so as to solve the defects that the graphene heating film in the prior art is difficult to ensure heating uniformity, poor in high-voltage breakdown resistance, poor in fixing effect of the graphene heating film, poor in conductivity and the like.
In a first aspect, the invention provides a graphene heating film, which comprises a carrier and a plurality of graphene heating coatings coated on the carrier and arranged side by side, wherein a polymer insulating film is coated on the graphene heating coatings in a hot-pressing manner;
electrode strips are arranged at the bottoms of two ends of any graphene heating coating, the electrode strips are electrically connected with the graphene heating coating, and graphene strips for preventing the electrode strips from contacting with a carrier are arranged between the electrode strips and the carrier;
electrode current-carrying strips are further arranged at two ends of the graphene heating coating, the electrode current-carrying strips are sandwiched between the graphene heating coating and the polymer insulating film, and the plurality of graphene heating coatings arranged side by side are electrically connected with the electrode current-carrying strips;
electrode connecting sections are further arranged at two ends of any one of the graphene heating coatings, the electrode connecting sections are clamped between the graphene heating coatings and the electrode current carrying strips, and the graphene heating coatings arranged side by side are electrically connected with the electrode current carrying strips through the electrode connecting sections;
the graphene heating film is provided with at least one pair of electrode holes, the electrode holes are arranged at two ends of the graphene heating film respectively and penetrate through the graphene heating film, and when the electrode holes are sleeved with electrode rods, the electrode current-carrying strips are electrically connected with the electrode rods.
Preferably, the electrode hole is also provided with an electrode buckle for buckling the electrode rod, and the electrode buckle is electrically connected with the electrode current-carrying strip.
Preferably, the electrode buckle is a metal buckle, the outer edge of the metal buckle is electrically connected with the graphene heating film, and the inner edge of the metal buckle is used for sleeving the electrode rod.
Preferably, a first heat-reflecting layer is further arranged between the carrier and the graphene heating coating, and the first heat-reflecting layer comprises a first insulating layer, a metal foil layer and a second insulating layer;
the metal foil layer is arranged between the first insulating layer and the second insulating layer, the first insulating layer is arranged between the carrier and the metal foil layer and used for connecting the carrier and the metal foil layer, and the second insulating layer is arranged between the metal foil layer and the graphene heating coating and used for connecting the metal foil layer and the graphene heating coating.
Preferably, a heat storage slow release layer is further arranged between the graphene heating coating and the polymer insulating film.
Preferably, the carrier is a modified PET film, the polymer insulating film is a PET film, and the surface of the PET film is coated with vapor phase aluminum oxide.
Preferably, a plurality of evenly distributed square holes are formed at two ends of any graphene heating coating.
The graphene heating film comprises a carrier and a plurality of graphene heating coatings coated on the carrier and arranged side by side, wherein a high-molecular insulating film is coated on the graphene heating coatings in a hot-pressing mode. The graphene heating coatings arranged side by side are beneficial to the thickness uniformity of the graphene heating coatings and reach stable graphene heating impedance, so that the phase emissivity of the graphene far infrared method and the electrothermal radiation conversion efficiency are improved. Be equipped with the graphite alkene strip of separation electrode strip and carrier contact between electrode strip and carrier, can effectively separate the direct contact of silver electrode strip and carrier, prevent vulcanization reaction between the two to the life of extension product. The plurality of graphene heating coatings are connected in parallel by means of the electrode connecting section and the electrode current carrying strip, so that the graphene heating films are built into an integral heating module, and the rear-end process can be freely cut according to different product lengths, so that the film is multipurpose. Still be equipped with at least a pair of electrode hole on the graphite alkene heating film, cup joint the electrode rod through the electrode hole, can guarantee that graphite alkene heating film is fixed in graphite alkene heating device in, also can guarantee good electric conductivity between graphite alkene heating film and the electrode rod, the safe current-carrying is more reliable. The high-molecular insulating film is thermally laminated on the upper surfaces of the electrode current-carrying strip and the graphene heating coating, so that the graphene heating coating has strong peeling resistance, the graphene heating film is resistant to high-voltage breakdown, and the service life of a product is prolonged.
In a second aspect, the invention provides a graphene heating device, which comprises a groove base, an upper cover and any one of the graphene heating films, wherein the upper cover covers the groove base and is used for enclosing an accommodating cavity, and the graphene heating film is accommodated in the accommodating cavity;
the electrode carrier strip is characterized in that an electrode rod corresponding to the electrode hole is arranged in the groove of the groove base, and when the electrode hole is sleeved with the electrode rod, the electrode carrier strip is electrically connected with the electrode rod.
Preferably, four electrode rods are arranged in the groove of the groove base, and four electrode holes are formed in the graphene heating film;
the graphene heating film is rectangular, and the four electrode holes are formed in four corners of the graphene heating film.
Preferably, be provided with the second heat reflection layer on the recess inner wall of recess base, the upper cover includes insulating heat-conducting layer and locates the skid resistant course on the insulating heat-conducting layer, when the upper cover lid fits the recess base, insulating heat-conducting layer is towards the recess base.
Preferably, the grooves of the groove base are internally provided with a plurality of graphene heating films, the graphene heating coatings of the graphene heating films face the upper cover, and the graphene heating films are sequentially crenellated and sleeved with the electrode rods.
The graphene heating device comprises a groove base, an upper cover and a graphene heating film, wherein the graphene heating film has considerable flexibility, toughness and hardness, and has the functions of bending resistance, wear resistance and proper stretching. The graphene heating device also has the advantages of convenience in assembly, stable structure, good conductivity and the like, the heating device is well protected, and the graphene heating device has the characteristics of electric leakage prevention, low energy consumption, high temperature resistance, long service life and the like, and is strong in practicability and outstanding in economic value.
Advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the invention.
Drawings
In order to more clearly illustrate the contents of the present invention, a detailed description thereof will be given below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is an exploded view of an electrical heating apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the groove base shown in FIG. 1 (hiding the four walls of the groove base);
FIG. 3 is a schematic structural view of the upper cover shown in FIG. 1;
FIG. 4 is a schematic view of an arrangement between the heating plate and the upper cover shown in FIG. 1;
fig. 5 is an exploded view of the graphene heating film shown in fig. 1;
fig. 6 is a longitudinal cross-sectional view of the heat reflecting layer shown in fig. 5.
Detailed Description
While the following is a description of the preferred embodiments of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Example 1
As shown in fig. 1, the present invention discloses a graphene heating device. This graphite alkene heating device recess base 1, upper cover 2 and graphite alkene heating film 3. The upper cover 2 covers the groove base 1 to form an accommodating cavity, and when the graphene heating device is assembled, the graphene heating film 3 is accommodated in the groove of the groove base 1, and then the upper cover 2 covers the groove base 1 to plug the groove, so that the graphene heating device is assembled. In this embodiment, as shown in fig. 2 (four walls of the groove base are omitted), four electrode rods 11, which may be metal electrode rods made of aluminum, for example, are further disposed in the groove of the groove base 1, and the graphene heating film 3 is provided with electrode holes 31 corresponding to the electrode rods 11. When equipment graphite alkene heating film 3, aim at four electrode holes 31 and penetrate four electrode poles 11, firmly fix graphite alkene heating film 3 in the recess of recess base 1 from this, simultaneously, because electrode pole 11 is connected with graphite alkene heating film 3 electricity, conveniently through electrode pole 11 for graphite alkene heating film 3 power supply, heat production.
As a preferred embodiment of this embodiment, a plug or a socket may be disposed on the outer wall of the groove base 1, and the plug or the socket is electrically connected to one pair of the four electrode rods 11, so that power and heat are conveniently supplied to the graphene heating film 3 through the plug or the socket on the outer wall of the groove base 1 and the electrode rods 11.
In this embodiment, six plugs or sockets are disposed on the outer wall of the groove base 1, the six plugs or sockets are electrically connected to two of the four electrode rods 11, any two of the four electrode rods 11 are arranged and combined to form six groups, which correspond to the six plugs or sockets, respectively, and each plug or socket is marked with a pair of electrode rods 11 selected by the plug or socket. From this, when arbitrary electrode rod 11 or electrode hole 31 broke down (contact failure), can select other electrode rod 11 or electrode hole 31 to realize the electric conduction, avoid changing the loaded down with trivial details process of graphite alkene heating film 3 or recess base 1.
In other preferred embodiments, the number of the electrode rods 11 and the number of the electrode holes 31 may also be 3, 5, 6, 7, 8, etc., which can ensure that the graphene heating film 3 is firmly fixed in the groove of the groove base 1, and meanwhile, because the electrode rods 11 and the graphene heating film 3 have multiple optional electrical connection modes, short circuit or poor contact during the use of the graphene heating film is effectively prevented, and the service life of the graphene heating device is prolonged.
In other preferred embodiments, a power adjusting knob or a touch screen may be further disposed on the outer wall of the groove base 1, and is used for adjusting the heat generating power of the graphene heating film 3. In other preferred embodiments, a display screen may be disposed on the outer wall of the groove base 1 for displaying the temperature of the outer surface of the groove and the power of the operation.
In this embodiment, the cross section of the groove base 1 is rectangular, and correspondingly, the graphene heating film 3 is also rectangular, and in other embodiments, the cross section of the groove base 1 and the graphene heating film 3 may also be polygonal, circular, elliptical or irregular.
In this embodiment, the electrode hole 31 is further provided with a metal ring 32, which may be, for example, a metal nickel ring, an outer edge of the metal ring 32 is electrically connected to the graphene heating coating, and an inner edge of the metal ring 32 is used for sleeving the electrode rod 11. Can play the effect of protection graphite alkene heating coat and graphite alkene heating film 3 through setting up metal ring 32, when guaranteeing that graphite alkene heating coat and graphite alkene heating film 3 and 11 good electricity of electrode rod are connected, also can guarantee to fix graphite alkene heating film 3, can also prevent to cup joint 11 in-process of electrode rod and cause graphite alkene heating coat and graphite alkene heating film 3's damage. In this embodiment, the outer edge of the metal buckle 32 is provided with a plurality of metal hooks, the ends of the metal hooks firmly grasp the electrode current-carrying strip, so as to fix the metal buckle 32, and meanwhile, the metal buckle 32 can be ensured to be electrically connected with the graphene heating coating through the electrode current-carrying strip, that is, the electrode rod 11 is electrically connected with the graphene heating film 3.
In a preferred embodiment, a heat reflective layer 12 is further disposed on the inner wall of the groove base 1. From this, can prevent through setting up heat reflection layer 12 that the heat that graphite alkene heating film 3 produced from leading to the fact the waste of heat through the outer wall and the base diffusion of recess base 1 away, the heat reflection layer 12 that sets up ensures that the heat that graphite alkene heating film 3 produced only diffuses to the outside through upper cover 2, ensures the effective utilization of heat energy. In the present embodiment, the heat reflective layer 12 is a silver mirror layer. In this embodiment, the groove base 1 is made of heat-resistant and flame-retardant materials, or the groove base 1 can be set into an inner layer, an outer layer and a middle vacuum heat-insulating layer, and has the function of ensuring effective utilization of heat energy.
As a preferred embodiment, as shown in fig. 3, the upper cover 2 includes an insulating heat conducting layer 21 and an anti-slip layer 22 disposed on the insulating heat conducting layer 21, wherein the insulating heat conducting layer 21 is preferably made of a ceramic material, which can not only quickly diffuse heat generated by the graphene heating film 3, but also play a good role in supporting. The preferred flexible heat conduction resin that is of skid resistant course 22, when upper cover 2 approximately fits groove base 1, insulating heat-conducting layer 21 is down, skid resistant course 22 is up, and skid resistant course 22 can heat conduction fast, still has certain flexibility, has the effect of antiskid and gentle pressure.
As a preferred embodiment, as shown in fig. 4, a temperature sensor 211 is further disposed on the insulating and heat conducting layer 21, and the temperature sensor 211 is used for detecting the temperature of the insulating and heat conducting layer 21. Can also set up temperature display screen 221 on skid resistant course 22 for the temperature that shows temperature sensor 211 and detect, convenience of customers knows graphite alkene heating device's heat production condition in real time.
As a preferred embodiment, a plurality of graphene heating films 3 may be further disposed in the grooves of the groove base 1, graphene heating coatings of the plurality of graphene heating films 3 face the upper cover 2, and the plurality of graphene heating films 3 are sequentially crenellated and fixed to the electrode rod 11. The compound graphite alkene heating film of 3 constitution of graphite alkene heating film that the multilayer set up has the effect that promotes the heat production power, when certain graphite alkene heating film 3 broke down, because multilayer graphite alkene heating film 3 is parallelly connected each other, can not disturb each other, has certain supplementary heat production effect.
Example 2
As shown in fig. 1 and 5, the graphene heating film 3 is further provided with 4 electrode holes 31, the 4 electrode holes 31 are respectively disposed at four corners of the rectangular graphene heating film 3 and penetrate through the graphene heating film 3, and when the electrode holes 31 are sleeved with the electrode rods 11, the electrode current-carrying bars are electrically connected with the electrode rods 11. Therefore, good electric conduction between the graphene heating film 3 and the electrode rod 11 is realized.
As shown in fig. 5, a graphene exothermic film 3 according to an embodiment of the present invention is shown. The graphene heating film 3 comprises a carrier 301 and a plurality of graphene heating coatings 302 arranged side by side and coated on the carrier 301. The carrier 301 is a modified PET film, the modified PET film is subjected to corona treatment on the two sides of the PET film, then the surface of the PET film is subjected to hard coating treatment, and heat setting and desulfurization treatment are performed before production, so that the high-temperature dimensional stability of the modified PET film is ensured, the secondary transverse shrinkage rate is close to zero, the longitudinal shrinkage rate is 2-3 thousandths, the modified PET film has strong surface adhesion, and the stability and reliability of the product quality are improved.
The graphene heating coating 302 is printed with graphene-based conductive ink. Graphite alkene generate heat coating 302 coats on carrier 301, for many rectangle face shapes, every graphite alkene generate heat coating 302's width be 100 and give first place to with other 180mm, compares whole piece conductive ink, many be provided with the thickness homogeneity that does benefit to graphite alkene generate heat coating 302, reach stable graphite alkene impedance of generating heat to improve graphite alkene far infrared normal emissivity and electrothermal radiation conversion efficiency.
In a preferred embodiment, a polymer insulating film 303 is thermally compressed on the graphene heat-generating coating layer 302. The outer surface of the polymer insulating film 303 is coated with a PET film of gas-phase aluminum oxide, and is subjected to high-pressure surface treatment, the polymer insulating film 303 is thermally laminated on the upper surface of the graphene heating coating 303 at a high temperature of 140-.
The silver electrode strips 304 are arranged at the bottoms of the two ends of each graphene heating coating 302, so that the electrode stability of each graphene heating coating 302 can be improved, the impedance of a single graphene heating coating 302 can be conveniently monitored in a subsequent production link, and the stability of the impedance is ensured.
Be equipped with graphite alkene strip 305 between silver electrode strip 304 and carrier 301, graphite alkene strip 305 can obstruct silver electrode strip 304 and carrier 301's PET substrate direct contact, can prevent vulcanization reaction between the two, provides the guarantee for the quality of product, prolongs the life of product simultaneously.
The graphene heating coating 302 is also provided with an electrode connecting section 306, the width of the electrode connecting section 306 is 3-30mm, the electrode connecting section 306 connects the graphene heating coating 302 in parallel to form an integral product, and the rear-end process can be cut according to different product lengths, so that the film is multipurpose.
The upper surface of the electrode connecting section 306 is provided with an electrode current-carrying strip 307, the polymer insulating film 303 covers the upper surface of the electrode current-carrying strip 307, the electrode current-carrying strip 307 is made of a conductive copper foil with low resistance, and two ends of the graphene heating coating 302 are respectively provided with an electrode current-carrying strip 307 which is respectively: the graphene heating electrode comprises a left electrode current-carrying strip and a right electrode current-carrying strip, wherein the left electrode current-carrying strip and the right electrode current-carrying strip are electrically connected with an electrode hole 31 (specifically a metal buckle 32), so that each graphene heating coating 302 is electrically connected with an electrode rod 11. The left electrode current carrying strip and the right electrode current carrying strip are respectively electrically connected with the electrode connecting sections 306 at the two ends of the graphene heating coating 302, so that the graphene heating coating 302 is ensured to be connected in parallel, the loading force at the two ends of the graphene heating film can be improved, the safe current carrying capacity of the electrode end of the graphene heating film is increased within a standard power range, and the safety of a product is improved.
As a preferred embodiment, a plurality of square holes 3021 are uniformly distributed at both ends of each graphene heating coating 302, so that the impedance of each section of graphene heating coating 302 can be within a standard range in the production process, and the contact surface between the graphene heating coating 302 and the electrode current carrying strip 307 and the silver electrode 304 is increased, thereby achieving more reliable current carrying.
In a preferred embodiment, a heat reflecting layer 308 is further provided between the support 301 and the graphene heat-generating coating 302, and the graphene heat-generating coating 302 is applied on the heat reflecting layer 308. As shown in fig. 6, the heat reflection layer 308 includes a first insulating layer 3081, a metal foil layer 3082 and a second insulating layer 3083. The metal foil layer 3082 is disposed between the first insulating layer 3081 and the second insulating layer 3083, the first insulating layer 3081 is disposed between the carrier 301 and the metal foil layer 3082 for connecting the carrier 301 and the metal foil layer 3082, and the second insulating layer 3083 is disposed between the metal foil layer 3082 and the graphene heating coating 302 for connecting the metal foil layer 3082 and the graphene heating coating 302. Play the function of reflection of heat, infrared ray through setting up metal foil layer 3082, prevent that the heat from generating heat the coating 302 below diffusion from graphite alkene, concentrate graphite alkene generate heat the heat that coating 302 produced and from the top diffusion to the hot environment of needs in, avoid causing thermal a large amount of wastes. In the embodiment of the invention, the metal foil layer 3082 is preferably an aluminum foil layer or a silver foil layer, and both the aluminum foil layer and the silver foil layer have good flexibility and ductility, so that the graphene heating film has certain flexibility and is convenient to roll. In the embodiment of the invention, the first insulating layer 3081 and the second insulating layer 3083 are preferably polyimide film layers, and the polyimide film layers have good insulating property and flexibility, so that the graphene heating film can be ensured to have certain flexibility and is convenient to roll up, and adhesion among the carrier 301, the metal foil layer 3082 and the graphene heating coating 302 can be assisted.
In a preferred embodiment, a heat storage slow release layer 309 is further disposed between the graphene heat-generating coating 302 and the polymer insulating film 303, and the heat storage slow release layer 309 has a function of storing heat and slowly releasing heat, and has an effect of maintaining constant heat generation of the graphene heat-generating coating 302.
In a preferred embodiment, the carrier 301 is a modified PET film, the polymer insulating film 303 is a PET film, and the PET film can resist high temperature and wear, and meanwhile, has excellent flexibility and elasticity, and is convenient to roll up. In this embodiment, the surface of the polymer insulating film 303 is coated with vapor phase alumina. The composite vapor phase aluminum oxide enables the polymer insulating film 303 to have strong peeling resistance and high voltage breakdown resistance, and meanwhile, the service life of the product is prolonged.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The graphene heating film is characterized by comprising a carrier and a plurality of graphene heating coatings coated on the carrier in parallel, wherein a high-molecular insulating film is coated on the graphene heating coatings in a hot-pressing manner;
electrode strips are arranged at the bottoms of two ends of any graphene heating coating, the electrode strips are electrically connected with the graphene heating coating, and graphene strips for preventing the electrode strips from contacting with a carrier are arranged between the electrode strips and the carrier;
electrode current-carrying strips are further arranged at two ends of the graphene heating coating, the electrode current-carrying strips are sandwiched between the graphene heating coating and the polymer insulating film, and the plurality of graphene heating coatings arranged side by side are electrically connected with the electrode current-carrying strips;
electrode connecting sections are further arranged at two ends of any one of the graphene heating coatings, the electrode connecting sections are clamped between the graphene heating coatings and the electrode current carrying strips, and the graphene heating coatings arranged side by side are electrically connected with the electrode current carrying strips through the electrode connecting sections;
the graphene heating film is provided with at least one pair of electrode holes, the electrode holes are arranged at two ends of the graphene heating film respectively and penetrate through the graphene heating film, and when the electrode holes are sleeved with electrode rods, the electrode current-carrying strips are electrically connected with the electrode rods.
2. The graphene heating film according to claim 1, wherein an electrode buckle for buckling an electrode rod is further disposed at the electrode hole, and the electrode buckle is electrically connected to the electrode current carrier.
3. The graphene heating film according to claim 1, wherein a first heat reflective layer is further disposed between the carrier and the graphene heating coating, and the first heat reflective layer includes a first insulating layer, a metal foil layer, and a second insulating layer;
the metal foil layer is arranged between the first insulating layer and the second insulating layer, the first insulating layer is arranged between the carrier and the metal foil layer and used for connecting the carrier and the metal foil layer, and the second insulating layer is arranged between the metal foil layer and the graphene heating coating and used for connecting the metal foil layer and the graphene heating coating.
4. The graphene heating film according to claim 1, wherein a heat storage slow release layer is further disposed between the graphene heating coating layer and the polymer insulating film.
5. The graphene heating film according to claim 1, wherein the carrier is a modified PET film, the polymer insulating film is a PET film, and the surface of the PET film is coated with vapor phase aluminum oxide.
6. The graphene heating film according to claim 1, wherein a plurality of square holes are uniformly distributed at both ends of any one of the graphene heating coatings.
7. A graphene heating device is characterized by comprising a groove base, an upper cover and the graphene heating film of any one of claims 1 to 6, wherein the upper cover covers the groove base and is used for enclosing an accommodating cavity, and the graphene heating film is accommodated in the accommodating cavity;
the electrode carrier strip is characterized in that an electrode rod corresponding to the electrode hole is arranged in the groove of the groove base, and when the electrode hole is sleeved with the electrode rod, the electrode carrier strip is electrically connected with the electrode rod.
8. The graphene heating device according to claim 7, wherein four electrode rods are disposed in the groove of the groove base, and four electrode holes are disposed on the graphene heating film;
the graphene heating film is rectangular, and the four electrode holes are formed in four corners of the graphene heating film.
9. The graphene heating device according to claim 7, wherein a second heat reflecting layer is disposed on an inner wall of the groove base, the upper cover includes an insulating heat conducting layer and an anti-slip layer disposed on the insulating heat conducting layer, and when the upper cover is covered on the groove base, the insulating heat conducting layer faces the groove base.
10. The graphene heating device according to claim 7, wherein a plurality of graphene heating films are arranged in the groove of the groove base, the graphene heating coatings of the graphene heating films face the upper cover, and the graphene heating films are sequentially stacked and castellated and sleeved with the electrode rod.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112218496A (en) * | 2020-10-10 | 2021-01-12 | 江南大学 | Thermal rectifying device and application thereof in regulating graphene thermal rectifying effect |
| CN113242618A (en) * | 2021-05-21 | 2021-08-10 | 北京化工大学 | Heat conduction and heat preservation integrated graphene heating film |
| CN113382486A (en) * | 2021-07-06 | 2021-09-10 | 德州宇航派蒙石墨烯科技有限责任公司 | Integrated heating diaphragm and preparation method thereof |
-
2020
- 2020-04-15 CN CN202010296814.XA patent/CN111278176A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112218496A (en) * | 2020-10-10 | 2021-01-12 | 江南大学 | Thermal rectifying device and application thereof in regulating graphene thermal rectifying effect |
| CN112218496B (en) * | 2020-10-10 | 2021-08-17 | 江南大学 | Thermal rectifying device and application thereof in regulating graphene thermal rectifying effect |
| CN113242618A (en) * | 2021-05-21 | 2021-08-10 | 北京化工大学 | Heat conduction and heat preservation integrated graphene heating film |
| CN113242618B (en) * | 2021-05-21 | 2022-09-09 | 北京化工大学 | Heat conduction and heat preservation integrated graphene heating film |
| CN113382486A (en) * | 2021-07-06 | 2021-09-10 | 德州宇航派蒙石墨烯科技有限责任公司 | Integrated heating diaphragm and preparation method thereof |
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