Graphene warmer

Abstract

The utility model discloses a graphene warmer which comprises a heat conductor and / or a heating body. The heat conductors are electric conductors arranged at the two ends of the ceramic heating piece and cooling fins arranged between the electric conductors. Graphene coatings are arranged on the surfaces, facing the heat outlet, of the electric conductor and the cooling fins. In another embodiment, the heating body is an electric heating wire wound on a mica sheet. A graphene coating is arranged on the outer surface of the electric heating wire; in another embodiment, the heating body is an infrared heating tube. The infrared heating tube comprises a high-temperature-resistant glass tube. A graphene coating is arranged on the outer surface of the high-temperature-resistant glass tube; in another embodiment, the heat conductor is a radiating fin, and the heating body is an electric heating tube. According to the graphene warmer, the advantages of a convection type heating body and a radiation type heating body are combined, heat is conducted through convection, and meanwhile the graphene warmer has high infrared radiation intensity.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heater technology field, concretely relates to a heater using graphene technology. BACKGROUND

[0002] The prior art convection heater mainly realizes heat transfer through air convection, therefore the strength of convection influences the user's heating experience. The heater with weak convection effect has higher temperature near the heater and lower temperature far from the heater. The heater with strong convection effect has higher temperature in the convection area and lower temperature in other areas. However, neither of the two convection heaters has the advantages of fast heating speed and good comfort of the radiation heater. SUMMARY

[0003] To solve the above technical problems, the utility model provides a technical scheme of a graphene heater, which comprises a heat conductor and / or a heating body, and a graphene coating is arranged on the surface of the heat conductor or the heating body.

[0004] In the first embodiment, the heat conductor is an electric conductor arranged at both ends of a ceramic heating sheet and a heat sink arranged between the electric conductors.

[0005] The surface of the electric conductor and the heat sink facing the heat outlet is provided with a graphene coating.

[0006] In the second embodiment, the heating body is an electric heating wire wound on a mica sheet.

[0007] Further, the cross section of the electric heating wire is oblong.

[0008] Further, the longer side of the cross section of the electric heating wire is arranged perpendicularly to the heat outlet, and the shorter side is arranged parallel to the heat outlet.

[0009] In the third embodiment, the heating body is an infrared heating tube.

[0010] The infrared heating tube comprises a high-temperature-resistant glass tube, and the outer surface of the high-temperature-resistant glass tube is provided with a graphene coating.

[0011] In the fourth embodiment, the heat conductor is a heat dissipation fin, and the heating body is an electric heating tube. The heat dissipation fin and the electric heating tube are provided with a metal shell outside.

[0012] Further, the front panel of the metal shell is provided with a radiation hole.

[0013] Further, one end of the heat dissipation fin is provided with a radiation plate.

[0014] Further, the surface of the radiation plate facing the radiation hole is provided with a graphene coating.

[0015] Preferably, the radiating plate is arranged parallel to the radiating hole.

[0016] Furthermore, the heating element includes a first heating element and a second heating element.

[0017] Preferably, the second heating element is arranged perpendicularly to the first heating element.

[0018] Preferably, the heating element is positioned close to the radiant hole.

[0019] The advantages of this invention compared to existing technologies are as follows: By applying a graphene coating to the surface of the heat conductor or heating element, the infrared radiation intensity of the heat conductor or heating element is enhanced. Therefore, the heat conductor or heating element combines the advantages of convection heating elements and radiation heating elements, exhibiting strong infrared radiation intensity while conducting heat through convection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first embodiment of the graphene PTC heater of this utility model.

[0021] Figure 2 This is a schematic diagram of the graphene PTC heating element of the first embodiment of this utility model.

[0022] Figure 3 This is a cross-sectional view (AA) of the graphene PTC heating element of the first embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the graphene electric heating wire heater, a second embodiment of this utility model.

[0024] Figure 5 This is a schematic diagram of the graphene heating wire heating element of the second embodiment of this utility model.

[0025] Figure 6 This is a cross-sectional view (AA) of the graphene heating wire heating element of the second embodiment of this utility model.

[0026] Figure 7 This is a schematic cross-sectional view of the graphene heating wire in the second embodiment of this utility model.

[0027] Figure 8 This is a schematic diagram of the graphene infrared heater, the third embodiment of this utility model.

[0028] Figure 9 This is a schematic diagram of the graphene infrared heating tube of the third embodiment of this utility model.

[0029] Figure 10This is a cross-sectional view (AA) of the graphene infrared heating tube of the third embodiment of this utility model.

[0030] Figure 11 This is a schematic diagram of the graphene skirting board heater, the fourth embodiment of this utility model.

[0031] Figure 12 This is a schematic diagram of the graphene heating tube of the fourth embodiment of this utility model.

[0032] Figure 13 This is a cross-sectional view (AA) of the graphene heating tube according to the fourth embodiment of this utility model.

[0033] The following are the labels in the diagram: 1. Heat conductor; 11. Electrical conductor; 12. Heat sink; 13. Heat sink fins; 131. Radiating plate; 14. Metal casing; 140. Front panel; 141. Radiating hole; 2. Heating element; 20. Ceramic heating element; 21. Heating wire; 211. Longer side of the cross-section; 212. Shorter side of the cross-section; 22. Infrared heating tube; 221. High-temperature resistant glass tube; 23. Heating tube; 231. First heating tube; 232. Second heating tube; 3. Graphene coating; 4. Mica sheet; 5. Heat outlet; 6. Radiating port. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0038] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Example 1:

[0040] Reference Figures 1 to 3 The graphene heater provided in this embodiment includes a heat conductor 1, which consists of conductive bodies 11 disposed at both ends of a ceramic heating element 20 and a heat sink 12 disposed between the conductive bodies. The surfaces of the conductive bodies 11 and the heat sink 12 facing the heat outlet are coated with a graphene coating 3.

[0041] Example 2:

[0042] Reference Figures 4 to 7 The graphene heater provided in this embodiment includes a heating element 2; the heating element 2 is an electric heating wire 21 wound on a mica sheet 4; the cross-sectional shape of the electric heating wire 21 is flat and elongated; the outer surface of the electric heating wire 21 is provided with a graphene coating 3; the longer side 211 of the cross-section of the electric heating wire 21 is perpendicular to the heat outlet 5, and the shorter side 212 is parallel to the heat outlet 5.

[0043] In Examples 1 and 2, the graphene coating 3 emits infrared radiation outward through the heat outlet 5 of the heater.

[0044] Example 3:

[0045] Reference Figures 8 to 10 The graphene heater provided in this embodiment includes a heating element 2; the heating element 2 is an infrared heating tube 22; the infrared heating tube 22 includes a high-temperature resistant glass tube 221; the outer surface of the high-temperature resistant glass tube 221 is provided with a graphene coating 3.

[0046] In this embodiment, the graphene coating 3 emits infrared radiation outward through the radiant port 6 of the heater.

[0047] Example 4:

[0048] Reference Figures 11 to 13 The graphene heater provided in this embodiment includes a heat conductor 1 and a heating element 2; 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 provided on the outside of the heat dissipation fin 13 and the electric heating tube 23; the front panel 140 of the metal shell 14 is provided with a radiation hole 141; a radiation plate 131 is provided at one end of the heat dissipation fin 13; a graphene coating 3 is provided on the surface of the radiation plate 131 facing the radiation hole 141; the electric heating tube 23 includes a first heating tube 231 and a second heating tube 232; the second heating tube 232 is arranged perpendicularly to the first heating tube 231; the electric heating tube 23 is arranged close to the radiation hole 141.

[0049] In this embodiment, the graphene coating 3 on the radiation plate 131 emits infrared radiation outward through the radiation hole 141.

[0050] I. Comparative Test

[0051] Test method: The surface temperature of the heat conductor or heat source is compared and tested using a thermal imager of model HM-TPK10-3AQF / W.

[0052] (1) In Example 1, the highest temperature of the conductor and heat sink without graphene coating was 208.3°C. The highest temperature of the conductor and heat sink with graphene coating was 241.6°C. Calculations based on the Stefan-Boltzmann law and the normal emissivity of the material showed that the infrared radiative exitance of the graphene-coated heating element and heat sink was increased by 1127.9%.

[0053] (2) In Example 2, the highest temperature of the heating wire without graphene coating was 227.4°C. The highest temperature of the heating wire with graphene coating was 420°C. According to the Stefan-Boltzmann law and the normal emissivity of the material, the infrared radiative exitance of the heating wire with graphene coating was increased by 1507.7%.

[0054] (3) In Example 3, the highest temperature of the infrared heating tube without graphene coating was 335.8°C. The highest temperature of the infrared heating tube with graphene coating was 395.5°C. According to the Stefan-Boltzmann law and the normal emissivity of the material, the infrared radiative exitance of the infrared heating tube with graphene coating was increased by 25.8%.

[0055] (4) In Example 4, the highest temperature of the heat sink fins without graphene coating was 326.1°C. The highest temperature of the heat sink fins coated with graphene was 360.5°C. Calculations based on the Stefan-Boltzmann law and the normal emissivity of the material showed that the infrared radiative exitance of the graphene-coated heat sink fins increased by 1114.3%.

[0056] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A graphene heater, characterized in that, Includes a heat conductor (1) and / or a heating element (2); The heat conductor (1) is a conductor (11) disposed at both ends of the ceramic heating element (20) and a heat sink (12) disposed between the conductor (11); the surfaces of the conductor (11) and the heat sink (12) facing the heat outlet (5) are provided with a graphene coating (3). The heating element (2) is an electric heating wire (21) wound on a mica sheet (4); the cross-sectional shape of the electric heating wire (21) is flat and elongated; the surface of the electric heating wire (21) is provided with a graphene coating (3).

2. The graphene heater as described in claim 1, characterized in that, In the cross-section of the heating wire (21), its longer side (211) is perpendicular to the heat outlet (5), and its shorter side (212) is parallel to the heat outlet (5).

3. The graphene heater as described in claim 1, characterized in that, The heating element (2) is an infrared heating tube (22); the infrared heating tube (22) includes a high-temperature resistant glass tube (221); the outer surface of the high-temperature resistant glass tube (221) is provided with a graphene coating (3).

4. The graphene heater as described in claim 1, characterized in that, 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 provided on the outside of the heat dissipation fin (13) and the electric heating tube (23); the front panel (140) of the metal shell (14) is provided with a radiation hole (141).

5. The graphene heater as described in claim 4, characterized in that, One end of the heat dissipation fin (13) is provided with a radiation plate (131); the surface of the radiation plate (131) facing the radiation hole (141) is provided with a graphene coating (3).

6. The graphene heater as described in claim 5, characterized in that, The radiating plate (131) is arranged parallel to the radiating hole (141).

7. The graphene heater as described in claim 6, characterized in that, The heating element (23) includes a first heating element (231) and a second heating element (232); the second heating element (232) is arranged perpendicularly to the first heating element (231).

8. The graphene heater as described in claim 7, characterized in that, The heating element (23) is positioned close to the radiant hole (141).

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