WO2015152575A1 - 자동차용 고효율 발열시트 - Google Patents
자동차용 고효율 발열시트 Download PDFInfo
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- WO2015152575A1 WO2015152575A1 PCT/KR2015/003061 KR2015003061W WO2015152575A1 WO 2015152575 A1 WO2015152575 A1 WO 2015152575A1 KR 2015003061 W KR2015003061 W KR 2015003061W WO 2015152575 A1 WO2015152575 A1 WO 2015152575A1
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- pattern
- automobiles
- layer
- heating sheet
- high efficiency
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 146
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 68
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 68
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 140
- 238000000034 method Methods 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 230000020169 heat generation Effects 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 238000007650 screen-printing Methods 0.000 claims description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 229910016036 BaF 2 Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- -1 WO 3 Inorganic materials 0.000 claims description 3
- 229910006501 ZrSiO Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Inorganic materials [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 3
- 229910003465 moissanite Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 3
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- 238000004378 air conditioning Methods 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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Images
Classifications
-
- 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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
-
- 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
-
- 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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
- H05B2203/004—Heaters using a particular layout for the resistive material or resistive elements using zigzag layout
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/009—Heaters using conductive material in contact with opposing surfaces of the resistive element or resistive layer
- H05B2203/01—Heaters comprising a particular structure with multiple layers
-
- 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
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/04—Heating means manufactured by using nanotechnology
Definitions
- It relates to a high efficiency heating sheet for automobiles.
- the planar heating body using the transfer energy was applied to the battery to ensure uniformity of temperature, but there was a limit in power consumption in warming the interior temperature of the car in winter, so the effect was not large.
- there is a need for developing a heating element for electric vehicles because a person who is in a car feels comfortable, sets a standard for a general air temperature, and an efficient way to reach the temperature. It is becoming.
- to provide a high-efficiency heat-generating sheet for a vehicle that realizes excellent weight efficiency, uniform heating performance and excellent stability while realizing light weight.
- a high-efficiency heating sheet for automobile comprising a laminated structure of the base layer, the first insulating layer, the carbon nanotube heating layer and the second insulating layer.
- the base layer may include a metal plate formed of a material including at least one selected from the group consisting of aluminum, copper, gold, silver, platinum, and combinations thereof.
- the high efficiency heating sheet for automobiles may not include an adhesive layer.
- the substrate layer may have a thickness of about 15 ⁇ m to about 500 ⁇ m.
- the first insulating layer and the second insulating layer may include an inorganic insulating material.
- the inorganic insulating material is LiF, BaF 2 , TiO 2 , ZnO, SiO 2 , SiC, SnO 2 , WO 3 , ZrO 2 , HfO 2 , Ta 2 O 5 , BaTiO 3 , BaZrO 3 , Al 2 O 3 , Y 2 O 3 , ZrSiO 4 , Si 3 N 4 , TiN, and combinations thereof.
- Each of the first and second insulating layers may have a thickness of about 5 ⁇ m to about 50 ⁇ m.
- the carbon nanotube heating layer may be patterned into a predetermined shape by coating the carbon nanotube paste on the substrate layer by a silk screen printing method.
- the carbon nanotubes may be carbon nanotubes doped with metal.
- the predetermined shape may include a parallel pattern or a serial pattern.
- the parallel pattern may include a first main pattern; A second main pattern; And at least one straight line pattern connecting the first main pattern and the second main pattern.
- the width of the straight line pattern connecting the first main pattern and the second main pattern may be about 100 ⁇ m to about 2 mm.
- the serial pattern includes a first main pattern and a second main pattern, wherein one of the first main pattern and the second main pattern is formed as a main jig pattern; Alternatively, the method may further include one zigzag pattern connecting the first main pattern and the second main pattern.
- a width of a zigzag pattern connecting the first main pattern and the second main pattern may be about 100 ⁇ m to about 2 mm.
- the carbon nanotube heating layer may have a thickness of about 5 ⁇ m to about 50 ⁇ m.
- the high-efficiency heating sheet for automobiles may further include a power supply electrically connected to the carbon nanotube heating layer and inducing heat generation of the carbon nanotube heating layer when a voltage is applied.
- the heating temperature of the heating layer may be formed at about 50 ° C to about 130 ° C.
- the high-efficiency heating sheet for automobiles can realize excellent energy efficiency, uniform heating performance and excellent stability while realizing light weight.
- FIG. 1 is a schematic diagram schematically showing a cross section of a portion including a carbon nanotube heating layer in a high-efficiency heating sheet for automobiles according to an embodiment of the present invention.
- Figure 2 (a) is a schematic diagram schematically showing a cross section of a conventional car heating sheet.
- Figure 2 (b) is a schematic diagram showing a cross-section of a high-efficiency heating sheet for automobiles which is an embodiment of the present invention.
- 3 (a) and 4 (a) are schematic diagrams schematically showing an example of a parallel pattern of the carbon nanotube heating layer.
- 3 (b) and 4 (b) are schematic diagrams schematically showing an example of a series pattern of a carbon nanotube heating layer.
- 3 (c) and 4 (c) are schematic diagrams schematically showing another example of a series pattern of a carbon nanotube heating layer.
- FIG. 5 is a schematic diagram schematically showing a carbon nanotube heating layer electrically connected to a power supply unit in the high-efficiency heating sheet for automobiles.
- any configuration is formed on the “top (or bottom)" of the substrate or “top (or bottom)” of the substrate means that any configuration is formed in contact with the top (or bottom) of the substrate.
- it is not limited to not including other configurations between the substrate and any configuration formed on (or under) the substrate.
- a high-efficiency heating sheet for automobiles including a laminated structure of the base layer, the first insulating layer, the carbon nanotube heating layer and the second insulating layer.
- HVAC heating, ventilation, air conditioning
- the air-conditioning system used in the existing automobiles was reflected as the electric heating system of electric vehicles, but about 40% of the total energy of the electric vehicle batteries was consumed for heating and cooling. High efficiency is constantly required, and heat loss reduction for heating and cooling system and structural improvement of the heating sheet applied to the system are increasing.
- the automotive high efficiency heating sheet includes a laminated structure of a base layer, a first insulating layer, a carbon nanotube heating layer, and a second insulating layer. It is possible to realize excellent performance by increasing temperature uniformity during heating. In addition, the electric vehicle to which the heating sheet is applied can control the indoor environment despite the outdoor air in winter.
- FIG. 1 is a schematic diagram schematically showing a cross section of a portion including a carbon nanotube heating layer in a high-efficiency heating sheet for automobiles according to an embodiment of the present invention.
- the automotive high efficiency heating sheet 100 includes a base layer 10, a first insulating layer 20, a carbon nanotube heating layer 30, and a second insulating layer 40 from below. can do.
- the high-efficiency heating sheet for automobiles has a structure in which three thin film layers are stacked on the base layer, and may be formed based on the material of each layer, the printing technology of each layer, and the pattern design of the carbon nanotube heating layer 30.
- the base layer 10 may include a metal plate formed of a material including at least one selected from the group consisting of aluminum, copper, gold, silver, platinum, and combinations thereof.
- a metal plate formed of a material including at least one selected from the group consisting of aluminum, copper, gold, silver, platinum, and combinations thereof.
- an aluminum plate having high electrical conductivity may be used as the base layer, and it is advantageous in that cracks do not occur in the aluminum plate even at an external pressure such as thermal contraction or expansion.
- the base layer 10 may have a thickness of about 15 ⁇ m to about 500 ⁇ m. By maintaining the thickness of the base layer in the above range, the base material can be prevented from being bent, and heat can be diffused in the horizontal direction or the vertical direction during heating.
- the first insulating layer 20 and the second insulating layer 40 may include an inorganic insulating material.
- the inorganic insulating material is LiF, BaF 2 , TiO 2 , ZnO, SiO 2 , SiC, SnO 2 , WO 3 , ZrO 2 , HfO 2 , Ta 2 O 5 , BaTiO 3 , BaZrO 3 , Al 2 O 3 , Y 2 O 3 , ZrSiO 4 , Si 3 N 4 and TiN may include one or more selected from the group consisting of.
- the insulating material means a material that does not allow heat, and includes an insulating material formed of an inorganic material on the first insulating layer and the second insulating layer, and each layer includes the base layer and the carbon nanotube heating layer to be described later.
- the first insulating layer prevents electric shock of the base layer when heat is generated by applying a voltage to the high efficiency heat generating sheet for automobiles
- the second insulating layer protects a portion generated by voltage application.
- the heating sheet can prevent the electric shock and fire in the heating module.
- Each of the first insulating layer 20 and the second insulating layer 40 may have a thickness of about 5 ⁇ m to about 50 ⁇ m. By maintaining the thickness of the first insulating layer and the second insulating layer in the above range, it is possible to prevent cracking of the insulating layer and to prevent distortion during drying. In addition, thicknesses of the first insulating layer and the second insulating layer may be the same or different. If the thickness of each layer is the same, it is advantageous in terms of efficiency in the printing process and the heat transfer efficiency can be predicted.
- the carbon nanotube heating layer 30 may be patterned into a predetermined shape by coating the carbon nanotube paste on the substrate layer by a silk screen printing method, for example, the predetermined shape is shown in FIGS. As shown in 4, it may comprise a parallel pattern or a serial pattern.
- the carbon nanotube paste refers to a composition obtained by processing carbon nanotubes in the form of a paste.
- the paste may include an organic solvent, carbon nanotubes, a filler, an organic binder, and the like. It may include one or more of single-walled carbon nanofibers or multi-walled carbon nanofibers.
- the silk screen printing method is to make the screen of the chemical fiber tensioned to form a screen, and then to give the ink to the ink to leak only on the wire, so that the carbon nanotube paste in a predetermined pattern or shape It may be to be coated on the base layer. Since the carbon nanotube heating layer is formed by a silk screen printing method, the carbon nanotube heating layer may have a parallel pattern or a serial pattern, and by easily changing the heating portion and the heating area through the pattern, the efficiency of the heating sheet is improved. Can be improved.
- the carbon nanotubes may be carbon nanotubes doped with metal.
- the metal may be silver.
- Carbon nanotubes doped with metal have a temperature resistance coefficient of nearly zero, and there is no change in resistance value even after repeated use, so it is easy to secure reliability. This is not simply corrected by mixing a carbon having a negative temperature resistance coefficient and a metal having a positive temperature resistance coefficient, but the chemical effect of the metal ion is chemically bonded to the functional group at the end of the acid-treated carbon nanotubes. Can be implemented.
- the carbon nanotube heating layer 30 may be doped with silver on the carbon nanotubes so that the carbon nanotube paste having a sheet resistance of 10 ⁇ s / ⁇ or less may be coated by silk screen printing to be patterned into a predetermined shape. Can be.
- the paste By directly coating the paste on the aluminum plate, adhesion to the aluminum plate, that is, the base layer may be improved, thereby reducing heat loss of the high-efficiency heating sheet for automobiles.
- the carbon nanotube heating layer may have a thickness of about 5 ⁇ m to about 50 ⁇ m. By maintaining the thickness of the carbon nanotube heating layer uniformly in the above range it is possible to prevent the occurrence of cracks, and to ensure a certain level of durability. In addition, by maintaining the thickness in the above range, it is possible to easily change the pattern of the carbon nanotube heating layer according to the heat transfer area.
- Figure 2 (a) is a schematic cross-sectional view of a conventional automotive heating sheet
- Figure 2 (b) is a schematic cross-sectional view of a high-efficiency heating sheet for automobiles that is an embodiment of the present invention.
- the conventional automotive heating sheet 101 mounted on the existing PTC heater is sequentially bonded with the metal base layer 11 and the ceramic heating layer 31 embedded therein. ), And a laminated structure in which the metal base layer 11 is laminated, thereby generating heat by applying a voltage directly to the metal base layer 11 to transfer current to the ceramic heat generating layer 31 through the adhesive layer 21. Performance can be exhibited.
- the ceramic heating layer 31 is attached to the metal base layer through the adhesive layer 21 to increase the thickness by the adhesive layer 21 having a predetermined thickness, and firmly maintain the appearance shape for a long time. Since both sides of the adhesive layer 21 must include a metal base layer to maintain, as a result, the total thickness and weight of the heat generating sheet 101 can only be formed at a high level. In addition, the heat generation performance of the ceramic material is low, in order to generate heat to a desired level of temperature, the thickness or volume of the ceramic heating layer 31 is inevitably formed at a high level. Accordingly, the conventional automotive heating sheet 101 has a high total thickness and weight, and thus, there is a problem in that driving performance and fuel efficiency of the vehicle are further reduced.
- the automotive high efficiency heating sheet 100 sequentially includes a laminated structure of a base layer, a first insulating layer, a carbon nanotube heating layer, and a second insulating layer, which will be described later.
- a rivet to the carbon nanotube heating layer to directly contact the wire to apply a voltage directly, it is possible to exhibit the heat generating performance.
- the automotive high-efficiency heating sheet 100 may be formed of a carbon nanotube material to form a heat generating layer, so that the heat generation performance is relatively increased, so that the thickness of the carbon nanotube heat generating layer may be thinly formed. By forming, it is possible to implement the heat generation performance uniformly as a whole.
- the high-efficiency heating sheet for automobiles can realize excellent energy efficiency by improving the driving performance and fuel efficiency of the vehicle by realizing weight reduction by reducing the total thickness and weight, and at the same time uniform
- the weight of the HVAC module to which the high-efficiency heat generating sheet 100 for automobiles is applied is about 57 g, which is about 31% less than that of a conventional PTC heater, and can heat the entire base layer area. Can reduce power consumption by about 20% compared to existing PTC heaters.
- the high-efficiency heating sheet 100 for automobiles may further include a power source electrically connected to the carbon nanotube heating layer 30 and inducing heat generation of the carbon nanotube heating layer when a voltage is applied.
- FIG. 5 schematically shows a schematic view of a carbon nanotube heating layer electrically connected to the power supply unit 50 in the automotive high efficiency heating sheet 100.
- the automotive high-efficiency heating sheet 100 schematically shows a schematic diagram in which the power supply unit 50 is electrically connected to the carbon nanotube heating layer.
- the power supply unit 50 may include a rivet 54, a wire 55, and a power supply 56.
- the rivet 54 is a crimp fixing member, and includes, for example, a wire connecting terminal, and the like, and fixes the wire 55 to be in contact with the carbon nanotube heating layer 30. 30) and the wire 55 may serve to connect.
- the rivet 54, the wire 55 and the power supply 56 may use a kind known in the art, and is not particularly limited.
- a voltage for example, a voltage of about 3V to about 24V may be applied to the power supply unit 50.
- an inrush current does not occur, and thus electrical characteristics may be ensured when the power supply unit 50 is turned on / off.
- the high efficiency heat generating sheet mounted on the HVAC module increases the surface and the ambient temperature of the heat generating sheet uniformly, and the heat generating area can also be widened.
- the heating temperature of the heating layer may be formed at about 50 ° C. to about 130 ° C.
- the high-efficiency heating sheet 100 for automobiles when the same voltage is applied in heat generation performance, the heat generation temperature is higher than about 15 ° C to about 30 ° C higher than the conventional PTC heater to reach the target temperature consumed less power to reach Can be.
- the heat generation temperature refers to the surface temperature of the carbon nanotube heat generating layer when a voltage is applied to the power supply unit 50. Heat is generated in the carbon nanotube heat generating layer by applying a voltage to the power supply unit 50. Due to the heat generated, the carbon nanotube heating layer may maintain a constant heating temperature.
- the heat generating temperature of the heat generating layer is less than about 50 ° C, there is a concern that the heat generating effect of the heat generating sheet does not affect the overall heating and heating system, and if the heat generating temperature of the heat generating layer exceeds about 130 ° C. Heat may occur, there is a possibility that the heating and cooling system itself is not executed, and may reduce the life of the heating sheet.
- FIG. 3 (a) and 4 (a) is a schematic diagram schematically showing an example of the parallel pattern of the carbon nanotube heating layer
- Figure 3 (b) and Figure 4 (b) is carbon nanotube heating
- Figure 3 (c) and Figure 4 (c) is a schematic diagram schematically showing another example of the series pattern of the carbon nanotube heating layer, as described above
- the carbon nanotube heating layer 30 may include a parallel pattern or a series pattern.
- the parallel pattern may include a first main pattern 31; Second main pattern 32; And one or more straight line patterns 33 connecting the first main pattern 31 and the second main pattern 32. Accordingly, the parallel pattern may be a pattern connected by the first main pattern 31, the second main pattern 32, and one or more straight line patterns 33.
- the first main pattern 31 and the second main pattern 32 may be patterns in which the power supply unit 50 is electrically connected directly.
- the power supply unit ( The wire 55 may be a pattern in which the wire 55 is directly contacted and connected by the wire connection terminal of the rivet 54 included in 50.
- the wire 55 may be fixedly connected to the distal ends of the first main pattern 31 and the second main pattern 32 by the rivets 54. have.
- each of the first main pattern 31 and the second main pattern 32 may have a width of about 100 ⁇ m to about 2 mm.
- the first main pattern 31 and the second main pattern 32 may be a pair of main straight patterns parallel to each other at a predetermined interval, and the predetermined interval may be For example, it may be about 0.5mm to about 50mm, but is not limited thereto, and may be appropriately changed according to the size of the high efficiency heat generating sheet 100 for automobiles.
- the one or more straight line patterns 33 connecting the first main pattern 31 and the second main pattern 32 may be formed as shown in FIGS. 3A and 4A. Orthogonal to the main pattern and the second main pattern may be connected to each other, and in the case of including a plurality of the linear pattern 33, the plurality of linear patterns 33 may be parallel to each other.
- the width of each linear pattern connecting the first main pattern 31 and the second main pattern 32 may be about 100 ⁇ m to about 2 mm.
- the serial pattern includes a first main pattern 31 and a second main pattern 32, wherein one of the first main pattern 31 and the second main pattern 32 is formed as a main jig pattern.
- the zigzag pattern 34 may further include a zigzag pattern 34 connecting the first main pattern 31 and the second main pattern 32 to each other.
- the first main pattern 31 and the second main pattern 32 may be patterns in which the power supply unit 50 is electrically connected directly.
- the power supply unit The wire 55 may be a pattern in which the wire 55 is directly contacted by the wire connection terminal of the rivet 54 included in the 50.
- the wire 55 may be fixedly connected to contact end portions of the first main pattern 31 and the second main pattern 32.
- each of the first main pattern 31 and the second main pattern 32 may have a width of about 100 ⁇ m to about 2 mm.
- one of the first main pattern 31 and the second main pattern 32 is a main zigzag pattern.
- the other may be formed as a main straight pattern connected to the main zigzag pattern.
- the first main pattern 31 and the second main pattern 32 have a predetermined interval. It may be a pair of main straight pattern to be parallel to each other, the predetermined interval may be, for example, about 0.5mm to about 50mm, but is not limited thereto.
- the first main pattern 31 and the second main pattern 32 when the first main pattern 31 and the second main pattern 32 are a pair of main straight patterns, the first main pattern 31 and the second main pattern 32 ) May further include one zigzag pattern 34. That is, the one zigzag pattern 34 having a predetermined area may connect the first main pattern and the second main pattern.
- the width of the zigzag pattern connecting the first main pattern 31 and the second main pattern 32 may be about 100 ⁇ m to about 2 mm. As the zigzag pattern maintains the width of the above range, a contact area between the first main pattern and the second main pattern is secured so that a current according to a voltage applied to the power supply unit 50 can flow, thereby preventing local heating.
- the heat generating area of the heat generating layer by the pattern can be easily implemented.
- the sheet resistance of the heat generating layer is about 0.5 kW / ⁇ to about 10 kW / ⁇
- the sheet resistance of the heating layer is about 0.5 kW / ⁇ to about 10 kW / ⁇
- the parallel pattern may be input less process cost and work time than the serial pattern.
- the serial pattern is advantageous in terms of uniformity of heat generation compared to the parallel pattern.
- the parallel pattern and the serial pattern are mixed, and the advantages of the straight line pattern and the zigzag pattern are simultaneously applied to the stability of the heating sheet. Both temperature and temperature uniformity can be improved.
- a first insulating layer having a thickness of 20 ⁇ m including an inorganic insulating material composed of SiO 2 and ZnO was laminated on an aluminum plate having a thickness of 500 ⁇ m, and 30 weight parts of carbon nanotubes per 100 parts by weight of the organic solvent by silk screen printing.
- the carbon nanotube paste including 5 parts by weight of the filler and 20 parts by weight of the organic binder was coated and coated to form a carbon nanotube heating layer having a thickness of 10 ⁇ m.
- a second insulating layer having a thickness of 20 ⁇ m including an inorganic insulating material composed of SiO 2 and ZnO was formed on the carbon nanotube heating layer to manufacture a high efficiency heating sheet for automobiles.
- the high-efficiency heating sheet for the vehicle used an electric vehicle heater applied to the heat core (Heat Core) for the electric vehicle.
- the PTC heater (PTC Polo, HVAC system) was applied to the heat core (Heat Core) for electric vehicles.
- the PTC heater (PTC Polo, HVAC system) is a heating sheet formed of a laminated structure of a 500 ⁇ m thick aluminum plate, an adhesive layer embedded with a 1.8 mm thick ceramic heating layer, and a 500 ⁇ m thick aluminum plate. Included.
- the exothermic temperature of the heat generating sheet was measured to be about 30 ° C. or more higher than the heat generating temperature of the heat generating sheet of the comparative example. It was confirmed that it is superior to the performance of the heating sheet.
- Module performance evaluation The heaters of the above-described examples and comparative examples are mounted on a normal HVAC module, and voltages (8V and 6V) are applied to the power supply unit with the same power (210W), and then the temperature is set in an electric vehicle using a thermometer. And the maximum surface temperature of the heater was measured and the results are shown in Table 2 below.
- the weight of the heating sheet according to the embodiment is further reduced to effectively realize the weight reduction can be clearly expected that the driving performance and fuel efficiency of the vehicle is improved to implement more excellent energy efficiency.
Landscapes
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
- Air-Conditioning For Vehicles (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
3V | 6V | 8V | ||
실시예 | Heating power(W) | 209 | 210 | 212 |
Air mass flow(kg/min) | 1.34 | 2.94 | 3.95 | |
Temp difference(℃) | 14 | 10 | 9 | |
Max. heat core temp.(℃) | 115 | 78 | 72 | |
비교예 | Heating power(W) | 206 | 211 | 207 |
Air mass flow(kg/min) | 1.36 | 2.97 | 4.16 | |
Temp difference(℃) | 11 | 5 | 5 | |
Max. heat core temp.(℃) | 75 | 47 | 43 |
8V(4kg/min) | 6V(3kg/min) | ||
실시예 | Air Temperature 증가폭(K) | 9 | 10 |
Maximum Surface Temp.(℃) | 72 | 78 | |
비교예 | Air Temperature 증가폭(K) | 5 | 5 |
Maximum Surface Temp.(℃) | 43 | 47 |
중량(g) | |
실시예 | 58 |
비교예 | 89 |
Claims (17)
- 기재층, 제1절연층, 탄소나노튜브 발열층 및 제2절연층의 적층구조를 포함하는자동차용 고효율 발열시트.
- 제1항에 있어서,상기 기재층은 알루미늄, 구리, 금, 은, 백금 및 이들의 조합으로 이루어진 군으로부터 선택된 하나 이상을 포함하는 재질로 형성된 금속 플레이트를 포함하는자동차용 고효율 발열시트.
- 제1항에 있어서,접착층을 포함하지 않는자동차용 고효율 발열시트.
- 제1항에 있어서,상기 기재층의 두께는 15㎛ 내지 500㎛인자동차용 고효율 발열시트.
- 제1항에 있어서,상기 제1절연층 및 제2절연층은 무기 절연물질을 포함하는자동차용 고효율 발열시트.
- 제5항에 있어서,상기 무기 절연물질은 LiF, BaF2, TiO2, ZnO, SiO2, SiC, SnO2, WO3, ZrO2, HfO2, Ta2O5, BaTiO3, BaZrO3, Al2O3, Y2O3, ZrSiO4, Si3N4, TiN 및 이들의 조합으로 이루어진 군으로부터 선택되는 하나 이상을 포함하는자동차용 고효율 발열시트.
- 제1항에 있어서,상기 제1절연층 및 제2절연층 각각의 두께는 5㎛ 내지 50㎛인자동차용 고효율 발열시트.
- 제1항에 있어서,상기 탄소나노튜브 발열층은 상기 기재층 상부에 탄소나노튜브 페이스트가 실크 스크린 인쇄방식으로 코팅되어 소정의 형상으로 패턴화된자동차용 고효율 발열시트.
- 제8항에 있어서,상기 탄소나노튜브는 금속이 도핑된 탄소나노튜브인자동차용 고효율 발열시트.
- 제8항에 있어서,상기 소정의 형상은 병렬 패턴 또는 직렬 패턴을 포함하는자동차용 고효율 발열시트.
- 제10항에 있어서,상기 병렬 패턴은 제 1 메인 패턴; 제 2 메인 패턴; 및 상기 제 1 메인 패턴 및 상기 제 2 메인 패턴을 연결하는 하나 이상의 직선 패턴;을 포함하는자동차용 고효율 발열시트.
- 제11항에 있어서,상기 제 1 메인 패턴 및 상기 제 2 메인 패턴을 연결하는 직선 패턴의 폭은 100㎛ 내지 2 mm인자동차용 고효율 발열시트.
- 제10항에 있어서,상기 직렬 패턴은 제 1 메인 패턴 및, 제 2 메인 패턴을 포함하고,상기 제 1 메인 패턴 및 상기 제 2 메인 패턴 중 하나가 메인 지그지그 패턴으로 형성되거나; 또는 상기 제 1 메인 패턴 및 상기 제 2 메인 패턴을 연결하는 하나의 지그재그 패턴을 추가로 포함하는자동차용 고효율 발열시트.
- 제 13에 있어서,상기 제 1 메인 패턴 및 상기 제 2 메인 패턴을 연결하는 지그재그 패턴의 폭은 100㎛ 내지 2mm인자동차용 고효율 발열시트.
- 제 1항에 있어서,상기 탄소나노튜브 발열층의 두께는 5㎛ 내지 50㎛인자동차용 고효율 발열시트.
- 제 1항에 있어서,상기 탄소나노튜브 발열층에 전기적으로 연결되며 전압 인가시 상기 탄소나노튜브 발열층의 발열을 유도하는 전원부를 더 포함하는자동차용 고효율 발열시트.
- 제 16항에 있어서,상기 전원부에 전압 인가시 상기 발열층의 발열온도는 50°C 내지 130°C로 형성되는자동차용 고효율 발열시트.
Priority Applications (4)
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CN201580014417.6A CN106105385A (zh) | 2014-03-31 | 2015-03-27 | 汽车用高效发热片 |
JP2016559932A JP2017516259A (ja) | 2014-03-31 | 2015-03-27 | 自動車用高効率発熱シート |
US15/122,180 US20160374147A1 (en) | 2014-03-31 | 2015-03-27 | Heating seat with high efficiency for vehicle |
DE112015001591.4T DE112015001591T5 (de) | 2014-03-31 | 2015-03-27 | Hocheffiziente Sitzheizung für ein Fahrzeug |
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KR10-2014-0038007 | 2014-03-31 | ||
KR1020140038007A KR20150114119A (ko) | 2014-03-31 | 2014-03-31 | 자동차용 고효율 발열시트 |
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US (1) | US20160374147A1 (ko) |
JP (1) | JP2017516259A (ko) |
KR (1) | KR20150114119A (ko) |
CN (1) | CN106105385A (ko) |
DE (1) | DE112015001591T5 (ko) |
WO (1) | WO2015152575A1 (ko) |
Cited By (1)
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CN105578629A (zh) * | 2016-02-29 | 2016-05-11 | 比赫电气(太仓)有限公司 | 一种金属柔性发热膜及其制备方法 |
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DE102018200293A1 (de) | 2018-01-10 | 2019-07-11 | Volkswagen Aktiengesellschaft | Fahrzeugsitz mit einer elektrischen Heizeinrichtung |
WO2019146282A1 (ja) * | 2018-01-23 | 2019-08-01 | 株式会社デンソー | シートヒータ |
US10962980B2 (en) | 2018-08-30 | 2021-03-30 | Ford Global Technologies, Llc | System and methods for reverse braking during automated hitch alignment |
US10821862B2 (en) | 2018-12-06 | 2020-11-03 | Ford Global Technologies, Llc | Temperature control system for seating assembly |
US11167856B2 (en) * | 2018-12-13 | 2021-11-09 | Goodrich Corporation Of Charlotte, Nc | Multilayer structure with carbon nanotube heaters |
US11633881B1 (en) * | 2018-12-20 | 2023-04-25 | General Nano Llc | Heated composite tool and method for building and use |
TWI708877B (zh) | 2019-10-18 | 2020-11-01 | 福懋興業股份有限公司 | 導電布及其製備方法與應用 |
US11910495B2 (en) * | 2019-12-13 | 2024-02-20 | Goodrich Corporation | Conductive ink with enhanced mechanical fatigue resistance |
USD1021032S1 (en) * | 2021-12-28 | 2024-04-02 | Shin-Etsu Polymer Co., Ltd. | Heat conducting unit |
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2015
- 2015-03-27 DE DE112015001591.4T patent/DE112015001591T5/de not_active Withdrawn
- 2015-03-27 CN CN201580014417.6A patent/CN106105385A/zh active Pending
- 2015-03-27 US US15/122,180 patent/US20160374147A1/en not_active Abandoned
- 2015-03-27 WO PCT/KR2015/003061 patent/WO2015152575A1/ko active Application Filing
- 2015-03-27 JP JP2016559932A patent/JP2017516259A/ja not_active Withdrawn
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Also Published As
Publication number | Publication date |
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KR20150114119A (ko) | 2015-10-12 |
US20160374147A1 (en) | 2016-12-22 |
DE112015001591T5 (de) | 2017-01-19 |
JP2017516259A (ja) | 2017-06-15 |
CN106105385A (zh) | 2016-11-09 |
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