Graphene heater

Abstract

The present invention discloses a type of graphene heater characterized by including a heat conductor and / or a heating element. In a first embodiment, the heat conductor comprises an electric conductor installed at both ends of a ceramic heating pad and a heat sink installed between the electric conductors, and a graphene coating layer is provided on the surface facing the heat outlets of the electric conductors and the heat sink. In a second embodiment, the heating element is a heating wire wrapped over a mica sheet, and a graphene coating layer is provided on the outer surface of the heating wire. In a third embodiment, the heating element is an infrared heat dissipation tube, and the infrared heat dissipation tube includes a high-temperature resistant glass tube, and a graphene coating layer is provided on the outer surface of the high-temperature resistant glass tube. In a fourth embodiment, the heat conductor is a heat dissipation fin, and the heating element is an electric heating tube. The graphene heater of the present invention combines the advantages of convective and radiative heating elements to conduct heat through convection while also possessing a relatively strong infrared radiation intensity.

Description

Technology Field

[0001] The present invention relates to the field of heating technology, specifically to a heating device using a type of graphene technology. Background Technology

[0002] Since current convection heaters achieve heat transfer primarily through atmospheric convection, the intensity of the convection affects the user's heating experience. Heaters with low convection efficiency result in higher temperatures in the surrounding area near the heater and lower temperatures in areas far from it. Heaters with high convection efficiency result in higher temperatures within the convection zone and lower temperatures in other areas. However, there is a problem in that not all types of convection heaters possess the specific advantages of radial heaters, such as rapid heating speed and good comfort. Prior art literature

[0003] Republic of Korea Registered Patent No. 10-1725428 The problem to be solved

[0004] In this invention, a graphene coating layer is provided on the surface of a heat conductor or heating element to increase the infrared radiation intensity of the heat conductor or heating element. Consequently, the heat conductor or heating element combines the advantages of convection-type heating elements and radiation-type heating elements, conducting heat through convection while simultaneously providing a relatively strong infrared radiation intensity. means of solving the problem

[0005] In order to solve the above technical problems, the present invention provides a graphene coating layer on the surface of the heat conductor or heating element.

[0006] In the first embodiment, the thermal conductor is an electric conductor installed at both ends of the ceramic heating pad and a heat sink installed between the electric conductors.

[0007] A graphene coating layer is provided on the surface facing the heat exhaust port of the above-mentioned electric conductor and the heat sink.

[0008] In the second embodiment, the heating element is a heating wire that wraps over a mica sheet.

[0009] In addition, the cross-sectional shape of the above heating wire is elongated.

[0010] In addition, the longer side of the cross-section of the heating wire is installed perpendicular to the heat outlet, and the shorter side is installed parallel to the heat outlet.

[0011] In the third embodiment, the heating element is an infrared heat dissipation tube.

[0012] The above infrared heat dissipation tube includes a high-temperature resistant glass tube and has a graphene coating layer on the outer surface of the high-temperature resistant glass tube.

[0013] In the fourth embodiment, the heat conductor is a heat dissipation fin and the heating element is an electric heating tube, and a metal shell is installed on the outside of the heat dissipation fin and the electric heating tube.

[0014] In addition, the front board of the metal shell is provided with a radiation hole.

[0015] In addition, a radiator plate is installed at one end of the above-mentioned heat dissipation fin.

[0016] In addition, a graphene coating layer is provided on the surface facing the radiation hole of the above-mentioned radiation plate.

[0017] Preferably, the radiation plate is installed parallel to the radiation hole.

[0018] In addition, the electric heating tube includes a first heat dissipation tube and a second heat dissipation tube.

[0019] Preferably, the second heat dissipation tube is installed vertically relative to the first heat dissipation tube.

[0020] Preferably, the electric heating tube is installed close to the radiation hole. Effects of the invention

[0021] According to the present invention, a graphene coating layer is provided on the surface of a heat conductor or heating element to increase the infrared radiation intensity of the heat conductor or heating element. Consequently, the heat conductor or heating element combines the advantages of a convection type heating element and a radiation type heating element, conducting heat through convection while also possessing a relatively strong infrared radiation intensity. Brief explanation of the drawing

[0022] Figure 1 is a guide diagram of a graphene PTC heater of the first embodiment of the present invention. FIG. 2 is a guide diagram of a graphene PTC heating element of the first embodiment of the present invention. FIG. 3 is a cross-sectional view AA of a graphene PTC heating element of the first embodiment of the present invention. FIG. 4 is a guide diagram of a graphene electric heating wire heater of the second embodiment of the present invention. FIG. 5 is a guide diagram of a graphene heating wire heating element of the second embodiment of the present invention. FIG. 6 is a cross-sectional view AA of a graphene heating wire heating element of the second embodiment of the present invention. FIG. 7 is a cross-sectional guide of a graphene heating wire of the second embodiment of the present invention. FIG. 8 is a guide diagram of the graphene infrared heater of the third embodiment of the present invention. FIG. 9 is a guide diagram of a graphene infrared heat dissipation tube of the third embodiment of the present invention. FIG. 10 is a cross-sectional view AA of a graphene infrared heat dissipation tube of the third embodiment of the present invention. FIG. 11 is a guide diagram of the graphene ring heater of the fourth embodiment of the present invention. FIG. 12 is a guide diagram of a graphene electric heating tube of the fourth embodiment of the present invention. FIG. 13 is a cross-sectional view AA of a graphene electric heating tube of the fourth embodiment of the present invention. Specific details for implementing the invention

[0023] The present invention is described in detail below in conjunction with the attached drawings and specific embodiments to enable those skilled in the art to better understand and implement the present invention. However, the present invention is not limited to the exemplified embodiments.

[0024] In the description of the present invention, the directions or positional relationships indicated by terms such as “vertical,” “parallel,” “inside,” and “outside” are based on the directions or positional relationships presented in the attached drawings; however, they are intended merely for the purpose of explaining the invention and for simplicity, and do not imply or suggest that the relevant device or component must necessarily have a specific direction or that its structure and operation must be performed according to that specific direction, nor should they be understood as limiting the present invention.

[0025] Furthermore, it will be understood that the terms “first” and “second” are for illustrative purposes only and do not indicate or imply relative importance, or imply or specify the quantity of the technical features indicated. This may specify or imply that the features of “first” and “second” include at least one of the relevant features.

[0026] As shown in FIGS. 1 to 3, the first embodiment of a graphene heater in the present invention includes a heat conductor (1), the heat conductor (1) is an electric conductor (11) installed at both ends of a ceramic heating pad (20) and a heat sink (12) installed between the electric conductors, and a graphene coating layer (3) is provided on the surface facing the heat outlets of the electric conductor (11) and the heat sink (12).

[0027] As illustrated in FIGS. 4 to 7, the second embodiment of a graphene heater in the present invention includes a heating element (2), the heating element (2) is a heating wire (21) that wraps over a mica sheet (4), the shape of the cross section of the heating wire (21) is elongated, and a graphene coating layer (3) is provided on the outer surface of the heating wire (21). The long side (211) of the cross section of the heating wire (21) is installed perpendicular to the heat outlet (5), and the short side (212) is installed parallel to the heat outlet (5).

[0028] The graphene coating layer (3) of the first and second embodiments emits infrared radiation to the outside through the heat outlet (5) of the heater.

[0029] As shown in FIGS. 8 to 10, the third embodiment of a graphene heater in the present invention includes a heating element (2), the heating element (2) is an infrared heat radiating tube (22), the infrared heat radiating tube (22) includes a high-temperature glass tube (221), and a graphene coating layer (3) is provided on the outer surface of the high-temperature glass tube (221).

[0030] The graphene coating layer (3) of the third embodiment emits infrared radiation to the outside through the radiator (6) of the heater.

[0031] As illustrated in FIGS. 11 to 13, the fourth embodiment of a type of graphene heater in the present invention includes a heat conductor (1) and a heating element (2), wherein the heat conductor (1) is a heat dissipation fin (13) and the heating element (2) is an electric heating tube (23). A metal shell (14) is installed on the outside of the heat dissipation fin (13) and the electric heating tube (23), and a radiation hole (141) is provided on the front board (140) of the metal shell (14). A radiation plate (131) is installed at one end of the heat dissipation fin (13), and a graphene coating layer (3) is provided on the surface facing the radiation hole (141) of the radiation plate (131). The electric heating tube (23) includes a first heat dissipation tube (231) and a second heat dissipation tube (232), and the second heat dissipation tube (232) is installed vertically relative to the first heat dissipation tube (231), and the electric heating tube (23) is installed close to the radiation hole (141).

[0032] The graphene coating layer (3) on the radiation plate (131) of the fourth embodiment emits infrared radiation to the outside through the radiation hole (141).

[0033] The surface temperature of a heat conductor or heating element was compared using a thermal imaging device with the model name HM-TPK10-3AQF / W.

[0034] In the first embodiment, the maximum temperature of the electrical conductor and heat sink without graphene spray coating is 208.3°C, and the maximum temperature of the electrical conductor and heat sink with graphene spray coating is 241.6°C. As a result calculated based on Stefan-Boltzmann's law and the normal emissivity of the material, the radiation emission in the infrared frequency range of the heating element and heat sink with graphene spray coating was improved by 1127.9%.

[0035] In the second embodiment, the maximum temperature of the heating wire without graphene spray coating is 227.4°C, and the maximum temperature of the heating wire with graphene spray coating is 420°C. As a result calculated based on Stefan-Boltzmann's law and the normal emissivity of the material, the radiation emission in the infrared frequency band of the heating wire with graphene spray coating was improved by 1507.7%.

[0036] In the third embodiment, the maximum temperature of the infrared heat dissipation tube without graphene spray coating is 335.8°C, and the maximum temperature of the infrared heat dissipation tube with graphene spray coating is 395.5°C. As a result calculated based on Stefan-Boltzmann's law and the normal emissivity of the material, the radiation emission in the infrared frequency range of the infrared heat dissipation tube with graphene spray coating was improved by 25.8%.

[0037] In the fourth embodiment, the maximum temperature of the heat dissipation fin without graphene spray coating is 326.1°C, and the maximum temperature of the heat dissipation fin with graphene spray coating is 360.5°C. As a result calculated based on Stefan-Boltzmann's law and the normal emissivity of the material, the radiation emission in the infrared frequency range of the heat dissipation fin with graphene spray coating was improved by 1114.3%.

[0038] The above embodiments are merely preferred embodiments illustrated to sufficiently explain the present invention and do not limit the scope of protection of the present invention. Those skilled in the art may make equivalent substitutions or modifications based on the present invention, and all such substitutions or modifications fall within the scope of protection of the present invention. The scope of protection of the present invention is based on the claims. Explanation of the symbols

[0039] 1: Thermal conductor 11: Electrical conductor 12: Heat sink 13: Heat fins 131: Radiator 14: Metal Shell 140: Front board 141: Radiation hole 2: Heating element 20: Ceramic heating pad 21: Heating wire 211: Long side of the cross-section 212: Short side of the cross-section 22: Infrared heat radiator tube 221: High-temperature glass tube 23: Electric heating tube 231: 1st electric heating tube 232: 2nd electric heating tube 3: Graphene coating layer 4: Mica sheet 5: Heat exhaust 6: Radiation outlet

Claims

Claim 1 delete Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 A graphene heater comprising a heat conductor (1) and / or a heating element (2), wherein the heating element (2) is an infrared heat radiating tube (22), the infrared heat radiating tube (22) includes a high-temperature glass tube (221), and the outer surface of the high-temperature glass tube (221) is provided with a graphene coating layer (3). Claim 6 A graphene heater characterized by having a heat conductor (1) and / or a heating element (2), wherein the heat conductor (1) is a heat dissipation fin (13) and the heating element (2) is an electric heating tube (23), a metal shell (14) is installed on the outside of the heat dissipation fin (13) and the electric heating tube (23), and a radiation hole (141) is provided on the front board (140) of the metal shell (14). Claim 7 A graphene heater according to claim 6, characterized in that a radiating plate (131) is installed at one end of the heat dissipation fin (13), and a graphene coating layer (3) is provided on the surface facing the radiating hole (141) of the radiating plate (131). Claim 8 A graphene heater according to claim 7, characterized in that the radiating plate (131) is installed parallel to the radiating hole (141). Claim 9 A graphene heater according to claim 8, wherein the electric heating tube (23) includes a first heat dissipation tube (231) and a second heat dissipation tube (232), and is installed vertically relative to the first heat dissipation tube (231) on the second heat dissipation tube (232). Claim 10 A type of graphene heater according to claim 9, characterized in that the electric heating tube (23) is installed close to the radiation hole (141).

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