KR101642700B1

KR101642700B1 - Pot for vehicle

Info

Publication number: KR101642700B1
Application number: KR1020150069842A
Authority: KR
Inventors: 김윤진; 조진우; 신권우; 박지선
Original assignee: 주식회사 대화알로이테크
Priority date: 2015-05-19
Filing date: 2015-05-19
Publication date: 2016-07-27
Also published as: WO2016186314A1

Abstract

Disclosed is a port for a vehicle using a planar heating element. According to one embodiment of the present invention, a port for a vehicle includes: a container main body; an operation unit formed in a lower portion of the container main body; and a heating unit including a planar heating element formed inside a bottom surface of the container main body, wherein the planar heating element includes 3-6 parts by weight of a carbon nanotube, 0.5-30 parts by weight of a carbon nanoparticle, 10-30 parts by weight of a binder mixture, 29-83 parts by weight of an organic solvent, and 0.5-5 parts by weight of a dispersant with respect to 100 parts by weight of a heat generating paste composition and the binder mixture includes a heat generating paste composition in which epoxy acrylate, polyvinyl acetal and a phenol-based resin are mixed, or hexamethylene diisocyanate, polyvinyl acetal, and a phenol-based resin are mixed.

Description

Vehicle Port {POT FOR VEHICLE}

The present invention relates to a vehicle port using an area heating element.

The present invention relates to a port for a vehicle, and more particularly, to a port for a vehicle which is excellent in thermal efficiency and is mounted on an existing vehicle cup holder to be used as a cup holder at normal times, while boiling water in a vehicle if necessary.

Korean Patent Laid-Open Publication No. 10-2006-0056171 (May 26, 2006) discloses a stainless steel kettle boiling in an automobile. According to the above-mentioned patent, electricity is supplied from an automobile battery and heat is generated by using an electric wire having a built-in nichrome wire. The water is poured into a movable stainless steel kettle, the switch is turned on, a stainless steel water kettle is placed on the electric wire, When the water boils to a certain degree, it is equipped with a heat prevention part, and a flashing light is attached, so that the electricity is automatically cut off and turned on.

However, a stain water kettle boiling in the automobile uses automobile battery voltage, but the voltage of a conventional automobile battery is 12V or 24V, and the supplied current is about 2A. On the other hand, according to Ohm's law, the voltage should be 12V or 24V and the resistance should be designed to be less than 6? Or 12? However, since a conventional nichrome wire resistance plate having a resistance of 50Ω or less is about 10 cm in length, a current of several tens of amperes (A) must be supplied in order to supply sufficient heat. There is a problem that it is insufficient to boil the water quickly.

In US Patent Publication No. 05243684 (Apr. 9, 1993), a bottom surface is provided at a fixed position in an automobile, a heating plate is installed in a receiving portion, and a cup is inserted in the upper portion to heat the internal water through a power source A portable water electric heating device is disclosed.

However, as described above, the portable water electric heating apparatus as described above has a low risk of overcurrent when operating the heating plate with a low voltage of the automobile and is inconvenient to the user because the thermal efficiency is low and the small size general cup can not be mounted And the like.

An object of the present invention is to provide a vehicle port using an area heating paste mat composed of an exothermic paste composition having high heat resistance and small resistance change to temperature and low specific resistance so that it can be driven at low voltage and low power.

According to an aspect of the present invention, there is provided a vehicle port comprising: a container body; An operating portion formed at a lower portion of the container main body; And a planar heating element formed inside the bottom surface of the container body, wherein the planar heating element comprises 3 to 6 parts by weight of carbon nanotube particles, 0.5 to 30 parts by weight of carbon nanoparticles, Wherein the binder contains 10 to 30 parts by weight of a mixed binder, 29 to 83 parts by weight of an organic solvent, and 0.5 to 5 parts by weight of a dispersant, wherein the mixed binder is a mixture of epoxy acrylate, polyvinyl acetal and a phenolic resin or hexamethylene diisocyanate, A vinyl acetal and a phenolic resin are mixed.

Wherein the heat-generating portion includes a thin plate-shaped surface heating element; An electrode for applying electricity to the planar heating element; And an insulating material that insulates both surfaces of the planar heating element from the outside.

Wherein the vehicle port is open at one side,

And a pedestal for providing power from the vehicle to the heating unit through the protrusions.

The mixed binder may be prepared by mixing 10 to 150 parts by weight of a polyvinyl acetal resin and 100 to 500 parts by weight of a phenol resin with respect to 100 parts by weight of epoxy acrylate or hexamethylene diisocyanate.

The vehicle port may further include 0.5 to 5 parts by weight of a silane coupling agent per 100 parts by weight of the exothermic paste composition.

The carbon nanotube particles may be multi-walled carbon nanotube particles.

The organic solvent is selected from among carbonitol acetate, butyl carbitol acetate, DBE (dibasic ester), ethyl carbitol, ethyl carbitol acetate, dipropylene glycol methyl ether, cellosolve acetate, butyl cellosolve acetate, butanol and octanol It can be mixed for two or more daily.

The exothermic paste composition may be formed on the substrate by screen printing, gravure printing or comma coating.

The substrate may be a polyimide substrate, a glass fiber mat, or a ceramic glass.

And a protective layer formed on the upper surface of the planar heating element and formed of an organic material having a black pigment such as silica or carbon black.

According to the present invention, water can be quickly boiled by using an area heating element.

Further, according to the present invention, there is provided a vehicle port capable of quickly boiling water at a vehicle battery voltage as low as 12V or 24V.

Further, according to the present invention, the set temperature of the port can be confirmed through the display unit.

In addition, according to the present invention, it is possible to select the function of the warming / boiling, and the temperature of the warming temperature can be controlled.

1 is a perspective view showing a structure of a vehicle port according to the present invention.
2 is a view showing the internal structure of the port body portion
3 is a partial cross-sectional view showing an operation effect when the port body portion is placed on the mounting portion.
4 is an image of a surface heating element specimen produced using the heating paste composition according to the present invention.
5 is an image of a heat stability test of the surface heating element samples prepared according to Examples and Comparative Examples.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a structure of a vehicle port according to the present invention, and FIG. 2 is a view showing a container and a pedestal 200 connected to each other.

The container includes a container body 110, a cap 120 that closes an opening at an upper portion of the container body 110, an operation portion 130 formed at a lower portion of the container body 110, and a heat- .

The container body 110 is preferably a circular shape having an elongated shape as a space for accommodating contents such as water or coffee, and a steam outlet 122 is formed in the stopper 120.

The operation unit 130 includes a function selection unit 132, a temperature control unit 134, and a display unit 136 that are operated by a user to boil water. The function selecting unit 132 includes a warm-up button 132a and a water-taking button 132b. When the warm-up button is pressed, the temperature keeping function is operated so that the temperature of the surface heating element is not excessively high, and when the water extracting button 132b is pressed, the temperature of the surface heating element is maintained high.

The temperature regulating unit 134 includes a temperature lowering button 134a and a temperature rising button 134b. It is possible to adjust the temperature to a desired temperature by operating the button of the temperature regulator 134 even when the warm button 132a is pressed.

The display unit 136 displays the currently set temperature.

The planar heating unit has a built-in planar heating element inside. When power is supplied to the outside, the area heating element generates heat according to the operation of the operation part 130 to heat the container. The detailed configuration of the surface heating element will be described later.

The pedestal 200 comprises a housing 210 for holding a container and having a space for accommodating the container, and one side of the housing 210 is opened. Since the opening portion is formed, the operating portion 130 formed on the lower portion of the container is exposed, and it is possible to operate the port.

A holder 220 is formed on the upper part of the housing 210 so as to protrude in an arm shape so that the container can be supported so as not to fall, and a support part 230 is formed at the lower part to stably support the container.

The projecting portion 240 is formed of a conductive material such as metal and is supplied to the container through the projecting portion 240 when the power is supplied through the cigarette jack 250. [ do. Power can be supplied from the vehicle through the cigar jack 250.

Fig. 3 is an exploded perspective view showing the heat generating portion of the present invention in a disassembled state.

The heat generating unit 140 includes a plate-shaped heat sink 141, an electrode 142 for applying electricity to the heat sink 141, and an insulating material 142 for insulating the both surfaces of the heat sink 141 from the outside 143).

More specifically, the heating unit 140 applies radiant heat using a heat generated by the electrical resistance of carbon, so that a thin thin plate-shaped surface heating element 141 is prepared.

An electrode 142 for applying electricity to the planar heating element 141 is provided on the one side of the planar heating element 141 and the opposite side of the heating element 141.

Both surfaces of the planar heating element 141 are coated with an insulating material 143 for insulation from the outside. Here, the insulating material 143 is preferably made of a material such as PET or PVC having excellent thermal conductivity and insulation.

It is preferable that an electromagnetic wave shielding material 144 capable of shielding electromagnetic waves is disposed between the surface heating element 141 and the insulating material 143, respectively.

Here, since the electromagnetic wave shielding material 144 is widely known, detailed description thereof will be omitted in the detailed description of the present invention.

The planar heating element 141 generates heat at a constant temperature according to a voltage applied thereto, emits far-infrared rays when heated to a predetermined temperature or more, and does not generate heat above a designed temperature.

Hereinafter, the composition and production of the surface heating element 141 will be described in detail.

The planar heating element may be formed by screen printing, gravure printing (to roll-to-roll gravure printing), or comma coating (to roll-to-roll comma coating) on a substrate with an exothermic paste composition for forming a thick film (hereinafter referred to as an exothermic paste composition).

First, referring to the exothermic paste composition, specifically, 3 to 6 parts by weight of carbon nanotube particles, 0.5 to 30 parts by weight of carbon nanoparticles, 10 to 30 parts by weight of a mixed binder, 29 to 30 parts by weight of an organic solvent, 83 parts by weight and 0.5 to 5 parts by weight of a dispersant.

The carbon nanotube particles may be selected from single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, or a mixture thereof. For example, the carbon nanotube particles may be multi wall carbon nanotubes. When the carbon nanotube particles are multi-walled carbon nanotubes, the diameter may be 5 nm to 30 nm and the length may be 3 to 40 μm.

The carbon nanoparticles may be, for example, graphite nanoparticles, and may have a diameter of 1 to 25 mu m.

The mixed binder functions to allow the exothermic paste composition to have heat resistance even in a temperature range of about 300 DEG C, and can be formed of epoxy acrylate or hexamethylene diisocyanate, polyvinyl acetal, Phenol resin (Phenol resin) mixed form. For example, the mixed binder may be a mixture of an epoxy acrylate, a polyvinyl acetal, and a phenolic resin, or a mixture of hexamethylene diisocyanate, a polyvinyl acetal, and a phenolic resin. In the present invention, by increasing the heat resistance of the mixed binder, even when it is heated at a high temperature of about 300 캜, it has an advantage that there is no change in the resistance of the material or breakage of the coating film.

Herein, the phenolic resin means a phenolic compound including a phenolic resin and a phenolic resin. For example, the phenol derivatives may be selected from the group consisting of p-cresol, o-Guaiacol, Creosol, Catechol, 3-methoxy-1,2- homocatechol, vinylguaiacol, Syringol, iso-eugenol, methoxyeugenol, o (methyloxy) benzenethiol, -Cresol, 3-methoxy-1,2-benzenediol and (z) -2-methoxy-4- (1-propenyl) -phenol (2-methoxy-4- (1-propenyl) -phenol), 2,6-dimethoxy-4- (2-propenyl) ) -Phenol, 3,4-dimethoxy-Phenol, 4ethyl-1,3-benzenediol, Resole phenol, 4-methyl-1,2-benzenediol, 1,2,4-benzene triol, 2-methoxy-6-methylphenol 2-Methoxy-6-methylphenol, 2-Methoxy-4-vinylphenol or 4-ethyl-2-methoxy- And Information that is not.

The mixing ratio of the mixed binder may be 10 to 150 parts by weight of polyvinyl acetal resin and 100 to 500 parts by weight of phenol resin based on 100 parts by weight of epoxy acrylate or hexamethylene diisocyanate. When the content of the phenolic resin is less than 100 parts by weight, heat resistance of the heat generating paste composition is deteriorated. When the content of the phenolic resin is more than 500 parts by weight, the flexibility is lowered.

The organic solvent is used for dispersing the conductive particles and the binder. The organic solvent is selected from the group consisting of Carbitol acetate, Butyl carbotol acetate, DBE (dibasic ester), Ethyl Carbitol, A mixture of two or more selected from the group consisting of acetone, dipropylene glycol methyl ether, cellosolve acetate, butyl cellosolve acetate, butanol and octanol.

Meanwhile, various methods commonly used may be applied to the dispersion process. For example, ultrasonic treatment (roll-milling), bead milling or ball milling Lt; / RTI >

Dispersing agents are used to make the dispersion more smooth. Common dispersants used in the art such as BYK, amphoteric surfactants such as Triton X-100, and ionic surfactants such as SDS and the like can be used.

The exothermic paste composition according to an embodiment of the present invention may further include 0.5 to 5 parts by weight of a silane coupling agent per 100 parts by weight of the exothermic paste composition.

The silane coupling agent functions as an adhesion promoter for enhancing the adhesive force between the resins when the exothermic paste composition is blended. The silane coupling agent may be an epoxy-containing silane or a mercaptan-containing silane. Examples of such silane coupling agents include epoxy-containing 2- (3,4-epoxycyclohexyl) -ethyltrimethoxysilane, 3-glycidoxytrimethoxysilane, 3-glycidoxypropyltriethoxysilane, (Aminoethyl) 3-aminopropylmethyldimethoxysilane, N-2 (aminoethyl) 3-aminopropyltrimethoxysilane having an amine group and N-2 , N-2 (aminoethyl) 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-aminopropyltriethoxysil, 3-triethoxysilyl- Propylamine, N-phenyl-3-aminopropyltrimethoxysilane, 3-mercaptopropylmethyldimethoxysilane, 3-mercaptopropyltriethoxysilane, isocyanate, 3-isocyanatopropyltriethoxysilane and the like, which are limited to those listed above No.

Wherein the substrate is selected from the group consisting of polycarbonate, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimide, cellulose ester, nylon, polypropylene, polyacrylolinertryl, polysulfone, polyester sulfone, polyvinylidene fluoride , Glass, glass fiber (mat), ceramic, SUS, copper or aluminum substrate, and the like. The substrate can be appropriately selected depending on the application field of the heating element and the use temperature.

The surface heating element may be formed by printing an exothermic paste composition according to embodiments of the present invention on the substrate in a desired pattern through screen printing or gravure printing, drying and curing the paste, or printing and drying / Followed by curing to form an electrode. Or by printing or drying / curing a silver paste or a conductive paste, and then screen printing or gravure printing the heating paste composition according to the embodiments of the present invention on the top.

The planar heating element may further include a protective layer coated on the upper surface. The protective layer may be formed of silica (SiO2). When the protective layer is formed of silica, it has an advantage that flexibility of the heating element can be maintained even if it is coated on the heating surface.

Hereinafter, an exothermic paste composition for forming a thick film according to the present invention and a planar heating element using the same will be described in detail with reference to test examples. The following test examples are only illustrative of the present invention, and the present invention is not limited by the following test examples.

Test Example

(1) Preparation of Examples and Comparative Examples

Examples (3 kinds) and comparative examples (3 kinds) were prepared as shown in Table 1 below. It is to be noted that the composition ratios indicated in [Table 1] are expressed as% by weight.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 CNT particles 4 5 6 4 5 6 CNP particles 8 9 15 - - - Mixed binder 20 15 22 - - - Ethyl cellulose - - - 10 12 14 Organic solvent 63 67 52 82 79 76 Dispersant (BYK) 5 4 5 4 4 4

In the examples, CNT particles and CNP particles (Examples 1 to 3) were added to a carbitol acetate solvent according to the composition of [Table 1], BYK dispersant was added, and dispersion A was prepared through ultrasonic treatment for 60 minutes Respectively. Thereafter, the master batch was prepared by adding the mixed binder to the carbitol acetate solvent and then mechanically stirring. Next, the dispersion A and the masterbatch were firstly kneaded by mechanical stirring and then subjected to a second-order kneading by a three-roll-milling process to prepare an exothermic paste composition.

In the comparative examples, the CNT particles were added to the carbitol acetate solvent according to the composition of [Table 1], BYK dispersant was added, and the dispersion was prepared by ultrasonication for 60 minutes. After that, ethyl cellulose was added to the carbitol acetate solvent and the master batch was prepared by mechanical stirring. Next, the dispersion B and the masterbatch were firstly kneaded through mechanical stirring, and then subjected to a second-order kneading through a three-roll-mill process to prepare an exothermic paste composition.

(2) Evaluation of surface heating element characteristics

After heating paste compositions according to Examples and Comparative Examples were screen printed on a polyimide substrate with a size of 10 x 10 cm and cured, a silver paste electrode was printed on both ends and cured to prepare a surface heating element sample.

4 is an image of a surface heating element specimen produced using the heat generating paste composition according to the present invention. 4 (a) is a planar heating element formed by screen printing a heating paste composition on a polyimide substrate. 4 (b) is a planar heating element formed by screen printing a heating paste composition on a glass fiber mat. 4 (c) and 4 (d) are images when a protective layer is coated on the surface heating element of FIG. 4 (a) Green protective layer coating).

The specific resistance of the surface heating element sample (example) as shown in Fig. 4 (a) and the surface heating element samples prepared according to the above comparative example were measured. The applied voltage / current is shown in Table 2). Further, in order to confirm the effect of the temperature increase according to the applied voltage / current, the surface heating elements corresponding to the examples and the comparative examples were heated to 40, 100 and 200 ° C, respectively. The current was measured.

In addition, the heat stability at 200 캜 was tested for each sample. In FIG. 5, images of heat stability tests of the surface heating element samples prepared according to Examples and Comparative Examples are shown, and the test results are summarized in Table 2 below.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Resistivity (× 10 ΩΩcm 1.9 2.55 2.96 9.73 8.52 6.23 40 ℃ reaching DC drive voltage / current 5V / 0.2A 6V / 0.2A 7V / 0.2A 20V / 0.3A 16V / 0.2A 12V / 0.2A 100 ℃ reach DC drive voltage / current 9V / 0.5A 12V / 0.4A 14V / 0.5A 48V / 0.7A 40V / 0.7A 26V / 0.6A 200 ℃ reaching DC drive voltage / current 20V / 0.6A 24V / 0.7A 24V / 1.0A - - - Heat stability (day) More than 20 days More than 20 days More than 20 days Bad Bad Bad

The surface heating elements corresponding to the embodiments are measured to be smaller than those of the surface heating elements corresponding to the comparative examples, and accordingly, the driving voltage / current necessary for reaching the respective temperatures is also shown in the examples Was smaller than that of the planar heating elements corresponding to the comparative examples. That is, it can be confirmed that the planar heating elements corresponding to the embodiments can be driven with lower voltage and lower power than the comparative example.

Further, in the planar heating elements according to Examples 1 to 3, stability was maintained for 20 days under exothermic driving at 200 ° C (no separate protective layer), whereas in Comparative Examples 1 to 3, A defective phenomenon that the surface of the heat generating portion swells up within a predetermined time was observed. That is, it can be confirmed that the surface heating elements corresponding to the embodiments can be stably driven at a temperature higher than 200 ° C. than the comparative example.

The embodiments of the present invention have been described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept as defined by the appended claims. It will be understood that various modifications may be made without departing from the scope of the present invention.

100: container 110: container body
120: plug 122: steam outlet
124: Dispersion body 130:
132: function selection unit 134: temperature control unit
136: Display unit 200: Pedestal
210: housing 220: holder
230: support part 240:
250: Cigar Jack

Claims

A container body;
An operating portion formed at a lower portion of the container main body; And
And a heat generating portion formed of a planar heating element formed inside the bottom surface of the container body,
The surface heating element
3 to 6 parts by weight of carbon nanotube particles, 0.5 to 30 parts by weight of carbon nanoparticles, 10 to 30 parts by weight of a mixed binder, 29 to 83 parts by weight of an organic solvent and 0.5 to 5 parts by weight of a dispersing agent are mixed with 100 parts by weight of an exothermic paste composition Including,
Wherein the mixed binder includes an exothermic paste composition in which an epoxy acrylate, a polyvinyl acetal, and a phenolic resin are mixed or a mixture of hexamethylene diisocyanate, polyvinyl acetal, and a phenolic resin is mixed.

The apparatus according to claim 1,
A thin plate-shaped surface heating element;
An electrode for applying electricity to the planar heating element; And
And an insulating material that insulates both surfaces of the planar heating element from the outside.

The method according to claim 1,
One side is open,
A projecting portion is formed at a central portion,
Further comprising a pedestal for providing power from the vehicle to the heating unit through the protrusions.

The method according to claim 1,
Wherein the mixed binder is a mixture of 10 to 150 parts by weight of a polyvinyl acetal resin and 100 to 500 parts by weight of a phenol resin with respect to 100 parts by weight of epoxy acrylate or hexamethylene diisocyanate.

The method according to claim 1 or 4,
Further comprising 0.5 to 5 parts by weight of a silane coupling agent per 100 parts by weight of the exothermic paste composition.

The method according to claim 1 or 4,
Wherein the carbon nanotube particles are multi-walled carbon nanotube particles.

The method according to claim 1 or 4,
The organic solvent is selected from among carbonitol acetate, butyl carbitol acetate, DBE (dibasic ester), ethyl carbitol, ethyl carbitol acetate, dipropylene glycol methyl ether, cellosolve acetate, butyl cellosolve acetate, butanol and octanol Wherein the mixed solvent is at least two mixed solvents.

The surface heating element according to claim 1,
Wherein the heating paste composition is formed by screen printing, gravure printing or comma coating on a substrate.

9. The method of claim 8,
Wherein the substrate is a polyimide substrate, a glass fiber mat, or a ceramic glass.

9. The method of claim 8,
Further comprising a protective layer formed on the upper surface of the planar heating element and formed of an organic material having a black pigment such as silica or carbon black.