KR20230020080A - Graphene Heating and Cooling Electric Mat - Google Patents

Abstract

In the present invention, a graphene resin solution is prepared by mixing graphene and a highly viscous natural rubber synthetic acrylic resin, and the solution is coated on a fabric to produce a graphene fabric. The produced graphene fabric is attached to a heating wire of the electric mat, such that the temperature of the heating wire of the electric mat is increased near the heating wire, and the entire mat to which the graphene fabric is attached is warm. As a result, the amount of heat wires used in the electric mat is reduced, and electromagnetic waves harmful to a human body are also reduced due to the reduction in the amount of heat wires used. In addition, the lifespan of a thermostat increases and electricity bills decrease due to the reduced amount of heating wires. In addition, the present invention also relates to a method of manufacturing a four-season mat which serves not only a heating function of the electric mat but also a cooling function by using a thermoelectric element.

Description

Graphene heating and cooling electric mat {Graphene Heating and Cooling Electric Mat}

Existing electric mats mainly consisted of a method of arranging heating wires at regular intervals between an outer skin and an inner skin and sewing them by attaching them with non-woven fabric.

Recently, many more luxurious functional electric mats are being sold by inserting a cushion function into existing electric mats or by inserting a sheet layer containing a mineral capable of emitting far-infrared rays.

However, such a conventional functional electric mat has a high risk of damage due to its added functionality, and the defective rate of the product itself increases.

Existing technologies for solving this problem have been developed by increasing the thickness of the electric mat to prevent wrinkles and to provide a cushioning feeling.

The conventional manufacturing method of attaching a PVC mat to the top and placing a separate cushion layer on the bottom to increase the thickness of the electric mat required higher power due to the thickness of the pvc mat, and to solve this problem, the insulation effect of the lower layer A heat insulating layer with

In this way, the price of the electric mat continued to rise, and the lifespan of the electric mat was reduced due to the complex structure of the mat.

In addition, due to the configuration of the electric mat, it is inevitable to include a heating wire, so the problem of electromagnetic waves due to this has always remained a headache.

In order to solve this problem, Korean Patent Registration No. 10-1540439 relates to a graphene sheet and a heating mat having the same, and includes a cushioning material between an inner skin and an exterior, and includes a heating wire, an electromagnetic wave blocking member, and a graphene sheet to provide a heating wire. proposed a heating mat configured to deliver heat to a point deep in the user's body at the same time as quickly as possible. However, since this technology uses the existing heating wire, there is a problem of electromagnetic wave generation, and to improve this, electromagnetic wave blocking members are included, but even if these members are used, electromagnetic waves are not completely blocked, and these members increase the manufacturing process and manufacturing cost. There is a problem with rising.

In addition, Korean Patent Registration No. 10-1528487 proposed a technology related to a planar heating element of graphene. In this technology, it is a faceted structure in which a graphene printed layer and a copper nano-coating layer are formed. The graphene-printed printed layer increases the flexibility of the planar heating element and extends its useful life, and the copper nano-coating layer sterilizes, It is explained as an advantage that it can be given detoxification, deodorization function, electromagnetic wave blocking function, and water vein blocking function. However, in this technology, since electromagnetic waves are inevitably generated by including an electrode as a heating element, and a copper nano-coating layer must be additionally included to improve this, there is a problem in that the manufacturing process and manufacturing cost increase.

In addition, Korean Patent Registration No. 10-1724542 provides a method for manufacturing a cool mat and a thermal cushion mat using graphene. In this technology, a mat is manufactured by solutionizing and impregnating graphene on textile paper. This is a thermal and cool functional product using the thermal conductivity of graphene, and there is a problem that its functionality becomes insignificant when exposed to the human body temperature for a long time in real life.

In the present invention, by using Griffin, it can generate heat at a high temperature of 40℃ or higher in winter and provide heat and cool functions that can lower the temperature by 2 to 5℃ compared to the ambient temperature in summer, corresponding to the four seasons of Korea. It is intended to provide a technology for manufacturing a mat that can be made.

The present invention has excellent adhesiveness and high elasticity after curing by adding natural rubber and acrylic resin to the basic resin of the patent 'Method for manufacturing paint for antifouling coating of various facilities (Application No. 10-2020-0129205)' filed in 2020. A basic resin was invented, and as a result of applying it to the combination of existing fabric and graphene, a graphene fabric was created.

When the basic resin and the fabric were impregnated, the characteristics of the fabric and the characteristics of the resin were well combined.

With these results, graphene is added to the base resin and blended to make a graphene base resin and when it is incorporated into a fabric, it retains the wrinkles, which are the characteristics of the fabric, and is easy to restore to its original state and stretches well. got to manufacture

The most important point in manufacturing the above graphene fabric is to partially apply graphene by writing various patterns on the fabric.

Full coating of graphene on the fabric and partial coating by inputting a special pattern to the fabric cause a huge difference in the unit price of the graphene fabric made. Even with the graphene coating area of , it showed sufficient heat transfer effect.

The prepared graphene fabric was made of a graphene fabric having various functionalities according to the characteristics of the fabric to be impregnated with the basic graphene resin.

The manufacturing of the electric mat using the graphene fabric is performed in the following order.

The graphene fabric is located on the upper part of the electric mat, the non-woven fabric is located below it, the heating wire is located below it, the non-woven fabric is located below it, the insulation material is located below it, and the fabric layer for cushion is located below it. A sheet for product protection is located.

The graphene fabric electric mat thus formed plays a sufficient role to function as a thermal mat, but is somewhat less functional in expressing cooling performance having the functionality of lowering the temperature by 2 to 5 ° C compared to the ambient temperature in summer as specified in the present invention.

Therefore, in the present invention, the graphene fabric and the temperature controller were connected by adding 2 wires for heat transfer in addition to 4 wires for the electric wire inlet of the electric mat.

The two added wires were produced by greatly increasing the graphene content of the graphene fabric or by coating the graphene resin on the existing copper wire once more.

In addition, in manufacturing the temperature controller part, the three roles of the temperature control function of the existing electric mat, the temperature reduction and cooling function using a thermoelectric element (Peltier element), and the water storage function that stores moisture generated by the function of the cooling function part made it

In the present invention, a graphene fabric was prepared by incorporating a graphene blending resin and various fabrics. As a result, each fabric has the following advantages, and it was possible to apply general fabrics to products as functional fabrics.

cotton fabric series polyester series pvc series before application After applying before application After applying before application After applying crumpled O X △ X X X Shout X O O O O O water repellent X O X O O O

Based on the above results, in the present invention, a graphene fabric in which a polyester-based fabric is impregnated was prepared, and an electric mat was manufactured using the graphene fabric.

In the present invention, a graphene fabric was used as a finishing layer without using a separate finishing layer.

It has higher thermal conductivity than the existing electric mat or the technology for manufacturing a cool mat and a thermal cushion mat using graphene (Korean Patent Registration No. 10-1724542), which soon led to the manufacture of products with high thermal efficiency.

In addition, in the present invention, the amount of graphene resin used in the fabric was reduced by writing a pattern on the graphene fabric and coating it, thereby recording a significant cost reduction.

In addition, in the present invention, the effect of heat transfer is maximized by placing the inlet and outlet in the pattern of the graphene fabric.

In the present invention, in order to make an electric mat having a heating function and convenience by using graphene, it has the following characteristics.

To manufacture the following anti-fouling hydrophilic fluororesin with the method on the patent 'Method for manufacturing paint for anti-fouling coating of various facilities (registered patent 10-2204064)' filed by the present inventor in 2020 for smooth impregnation of graphene and fabric As a first step, a method for producing a paint for antifouling painting of various facilities consisting of a second step of manufacturing a paint for antifouling painting using the manufactured antifouling hydrophilic fluororesin, wherein the first step is a component measurement process, It consists of a metered component mixing process. The component metering process includes 5-30% by weight of an aqueous dispersion in which polytetrafluoroethylene is dispersed in water, 1-5% by weight of polytetrafluoroethylene (PTFE), and polypropylene PTFE-M (molding). Powder) 1-10% by weight, 10-50% by weight of acrylic resin, 0.3-4% by weight of additives, 1-10% by weight of pigment, and the remaining solvent, and the component mixing process is performed after the weighed ingredients are sequentially added to the stirring tank and then 30 It consists of a process of stirring at low speed for 1-2 hours at a rate of 50-100 rpm while heating to -40 ° C,

As the second step, 20 to 40% by weight of the antifouling hydrophilic fluororesin prepared in the first step; 10-20% by weight of any one selected from acrylic resin, modified latex resin, hybrid rubber, silicone resin, and urethane-modified polyester; Polyfron PTFE-M 1-10% by weight; Ammonium phosphate monobasic 1-5% by weight; 0.1-2% by weight of lauryl betaine; 0.1-1% by weight of diethylenetriamine and the rest of the water dispersion-polyurethane resin (Polyurethane Dispersion Type) are put in a mixing tank and stirred at a speed of 150 rpm for 30 minutes. When preparing the resin in the first step of the manufacturing method and mixing the resin in the second step, 20-50% by weight of the antifouling hydrophilic fluororesin prepared in the first step, 10-20% by weight of acrylic resin, 10-20% by weight of modified latex resin %, hybrid rubber 5-20% by weight, polypropylene PTFE-M 1-10% by weight; Ammonium phosphate monobasic 1-5% by weight; 0.1-2% by weight of lauryl betaine; 0.1-1% by weight of diethylenetriamine and the rest of the water dispersion-polyurethane resin (Polyurethane Dispersion Type) were put in a mixing tank, stirred at a speed of 150 rpm for 10 minutes, and then 10-20% by weight of the liquefied graphene solution was further added. Go to make a graphene base resin.

After preparing the graphene base resin, a graphene fabric is prepared by impregnating the polyester-based fabric.

At this time, in the process of impregnating the graphene base resin and the polyester-based fabric, the amount of the graphene base resin can be reduced by inputting a specific pattern.

At this time, in the generation of the pattern, the area of the graphene base resin will be 20-50% of the area of the entire fabric, and the thickness of the graphene base resin is 50-150 μm.

When manufacturing a queen size (2000 * 1500) electric mat using the above graphene fabric, a heating wire of 20m or more is usually required, but in the present invention, a heating wire of 12-18m is used, and the generation of electromagnetic waves is reduced as the amount of heating wire is reduced. It functions as an electric mat that saves electricity bills by using a small amount of electricity.

In addition, when manufacturing electric mats such as the sequence size (2000 * 1500) for producing the above electric mat, the heating wire is inserted only inside the reinforcing seam line, which is the end (edge) of the electric mat, so that the total length of the heating wire is less than 7m A separate heat insulating material was inserted into the insertion part of the heating wire inside the reinforcing seam line and adhesively sewn so that the heat of the heating wire was transmitted only to the graphene fabric.

At this time, all parts of the inside except for the edge of the electric mat have a structure in which the heat of the heating wire is transferred by the graphene pattern of the graphene fabric. It is effective when the film thickness of the graphene pattern is 100-200㎛.

The electric mat was manufactured and, when using the electric mat, there is little or no heating wire in contact with the human body or reduced to a minimum compared to existing electric mats, resulting in an electric mat with increased safety from the risk of electromagnetic waves. can be of great help to

Existing electric mats generate heat concentrated only on the heating wire, so there is a slight risk of burns when the heating wire comes into contact with the human body. Therefore, a separate blanket or blanket was placed on the electric mat to distribute the temperature of the heating wire, but this caused inconvenience and waste of constant use at a relatively high temperature. However, the above electric mat is continuous as the graphene fabric transfers the heat of the heating wire, and has an effect of evenly transferring heat to the entire graphene fabric, so there is no need to use a separate blanket or blanket.

In addition, in the electric mat manufactured in the above manner, the length of the heating wire is reduced, so that the load on each part of the controller is reduced and the life of the product is extended.

When the electric mat was manufactured in the same way as above, even when the length of the heating wire was limited to at least 7m (queen size 2m x 1.5m), the same effect was exhibited, and the shortening of the heating wire led to a reduction in electricity rates.

In addition, when manufacturing electric mats such as queen size (width 2000 * height 1500), if heating wires are inserted inside the reinforcing seam line, which is the end (edge) of the electric mat, the total length of the heating wire is at least 4m at both ends of the horizontal part. Separate the inlet heating line and the outlet heating line

All parts of the inside except for the edge of the electric mat have a structure in which the heat of the heating wire is transmitted by the graphene pattern of the graphene fabric. Since there is no heating wire in direct contact with the human body, it is safer as a risk of electromagnetic waves, and the thickness of the heating wire It is a method of manufacturing an electric mat that allows you to take a comfortable rest because there is no exhaustion in the contact area of the electric mat due to heat loss, and the lifespan of the temperature controller is extended by using a heating wire with a short length and the amount of power consumption is reduced.

The temperature controller part of the electric mat used in the above claims is the same as the heat controller part of the existing electric mat.

It is divided into the air conditioner part, which is operated through a manual control switch.

When the air conditioner is operated through the manual control switch, it is converted into 12v direct current through an adapter and connected to a thermoelectric element (Peltier element) to operate the thermoelectric element.

For the efficient operation of the thermoelectric element, the air conditioner part is divided into six parts, the first part has the air conditioner, the second part below it has the thermoelectric element, and the third part below it has the inlet heating wire to the thermoelectric element. is connected, and it is a part that reinforces it with an insulator, and a cooling fan is located in the fourth part below it to help cool the heat sink, and the fifth part below it is connected to the aluminum heat sink with an outlet heating wire, so that cold air from the inlet heating wire passes through the electric mat. It reaches the outlet heating line smoothly through the heat sink and serves to increase the cooling efficiency, and the sixth part below it is a plastic bucket part that collects and stores water generated from the thermoelectric element and the aluminum heat sink.

In the air conditioner, the inlet heating wire of the third part and the outlet heating wire of the fifth part are connected to the inlet heating wire part and the outlet heating wire part of the electric mat, respectively, and through this, the cold air of the thermoelectric element is smoothly transferred to the electric mat. And to put it briefly, it is:

First, for smooth impregnation of graphene and fabric, natural rubber and acrylic resin are used in the basic resin of the patent 'Method for manufacturing anti-fouling paint for various facilities (Application No. 10-2020-0129205)' filed by the present inventor in 2020 was added to invent a base resin with excellent adhesiveness and high elasticity after curing, and a graphene fabric was manufactured by applying this to the combination of the existing fabric and graphene.

By writing a certain pattern on the graphene fabric, the amount of graphene used could be reduced by 30 to 90%, and there was no significant difference in thermal efficiency felt when using the fabric.

Second, in the pattern of the graphene fabric, an inlet and an inlet must be provided, and this inlet and outlet are finally connected to the heating wire connection part of the electric mat.

The heating wire connecting between the electric mat and the temperature controller basically has two heating wires and two sensing wires, which are divided into an inlet heating wire, a sensing wire and an outlet heating wire, and a sensing wire, respectively, and classified into an inlet heating wire and an outlet heating wire. This is because when the cooling function of the thermostat is used, only the temperature transfer function is used, not the function of the heating wire and the sensing wire of the heating wire.

Third, in manufacturing the temperature controller part, it is divided into the heat controller part and the air conditioner part of the existing electric mat. The heat controller part uses 220v AC electricity and the air conditioner part uses 12v DC electricity. To this end, an adapter is essential for the air conditioning controller, and in order to suppress simultaneous use of the thermostat and the air conditioner, a switch is placed on one of the 220v leads to control the electricity coming into the thermostat and the air conditioner.

Then, among the 2 heating wires and the 2 sensing wires leading from the thermostat to the electric mat, it is divided into an inlet heating wire and an outlet heating wire. Connect the wire connected to the heat sink to the outlet heating wire.

At this time, the wire coming out of the thermoelectric element of the air conditioner and the aluminum heat sink is used by increasing the graphene content of the graphene fabric or by coating the graphene fabric on the copper wire to increase the thermal conductivity.

Due to the above three characteristics, it functions as a heating/cooling/heating electric mat that can be used throughout the four seasons in the existing electric mat, which only had a heating function.

Claims (2)

In the first step to prepare graphene base resin for manufacturing graphene fabric, to make anti-fouling hydrophilic fluororesin, a component metering process and a metered component mixing process are performed. The component metering process is polytetrafluorocarbon 5-30% by weight of an aqueous dispersion of ethylene dispersed in water, 1-5% by weight of Polyflon PTFE (polytetrafluoroethylene), 1-10% by weight of Polyflon PTFE-M (molding powder), 10-50% by weight of acrylic resin, It consists of 0.3-4% by weight of additives, 1-10% by weight of pigment, and the rest of the solvent. In the component mixing process, the weighed ingredients are sequentially put into a stirring tank and then heated at 30-40℃ for 1-2 hours at a speed of 50-100rpm. It is made by a process of low-speed stirring,
In the second step, the resin of step 1 is prepared, and when the resin of step 2 is mixed, 20-50% by weight of the antifouling hydrophilic fluororesin prepared in step 1, 10-20% by weight of acrylic resin, 10-20% by weight of modified latex resin 20% by weight, 5-20% by weight of hybrid rubber, 1-10% by weight of polypropylene PTFE-M; Ammonium phosphate monobasic 1-5% by weight; 0.1-2% by weight of lauryl betaine; Add 0.1-1% by weight of diethylenetriamine and the rest of the water dispersion-polyurethane resin (Polyurethane Dispersion Type) to the mixing tank, stir at a speed of 150 rpm for 10 minutes, and then add 5-20% by weight of the liquefied graphene solution. Add and stir at a speed of 150 rpm for 30 minutes to make a graphene base resin.
In the process of impregnating the graphene base resin and the polyester-based fabric, the amount of the graphene base resin can be reduced by inputting a specific pattern. The area to be used will be 10-60%, and the thickness of the graphene base resin is 20-150㎛. At this time, the creation of the pattern must be divided into an inlet and an outlet, and the total length of one pattern must be between 2-20m, and 2-50 patterns between 5-20m can be used for one electric mat. The pattern used connects each inlet to an inlet heating wire and each outlet to an outlet heating wire.
As an example of using the above graphene fabric, it is characterized by using a 3-18m heating wire when manufacturing an electric mat such as a queen size (2000 * 1500), and the used heating wire must be divided into an inlet heating wire and an outlet heating wire to insert into the mat
In addition, when manufacturing electric mats such as queen size (width 2000 * height 1500), if heating wires are inserted inside the reinforcing seam line, which is the end (edge) of the electric mat, the total length of the heating wire is at least 4m at both ends of the horizontal part. Separate the inlet heating line and the outlet heating line
All parts of the inside except for the edge of the electric mat have a structure in which the heat of the heating wire is transmitted by the graphene pattern of the graphene fabric. Since there is no heating wire in direct contact with the human body, it is safer as a risk of electromagnetic waves, and the thickness of the heating wire It is a method of manufacturing an electric mat that allows you to take a comfortable rest because there is no exhaustion in the contact area of the electric mat due to heat loss, and the lifespan of the temperature controller is extended by using a heating wire with a short length and the amount of power consumption is reduced.
The temperature controller part of the electric mat used in the above claims is the same as the heat controller part of the existing electric mat.
It is divided into the air conditioner part, which is operated through a manual control switch.
When the air conditioner is operated through the manual control switch, it is converted into 12v direct current through an adapter and connected to a thermoelectric element (Peltier element) to operate the thermoelectric element.
For the efficient operation of the thermoelectric element, the air conditioner part is divided into six parts, the first part has the air conditioner, the second part below it has the thermoelectric element, and the third part below it has the inlet heating wire to the thermoelectric element. is connected, and it is a part that reinforces it with an insulator, and a cooling fan is located in the fourth part below it to help cool the heat sink, and the fifth part below it is connected to the aluminum heat sink with an outlet heating wire, so that cold air from the inlet heating wire passes through the electric mat. It reaches the outlet heating line smoothly through the heat sink and serves to increase the cooling efficiency, and the sixth part below it is a plastic bucket part that collects and stores water generated from the thermoelectric element and the aluminum heat sink.
In the air conditioner, the inlet heating wire of the third part and the outlet heating wire of the fifth part are connected to the inlet heating wire part and the outlet heating wire part of the electric mat, respectively, and through this, the cold air of the thermoelectric element is smoothly transferred to the electric mat. and
Among the two heating wire parts and the two sensing wire wires leading from the temperature controller to the electric mat, the inlet heating wire part and the outlet heating wire part are divided, and the line that transfers the cold air of the thermoelectric element of the air conditioner is connected to the inlet heating wire, and the aluminum of the air conditioner Connect the wire connected to the heat sink to the outlet heating wire.
At this time, the wire coming out of the thermoelectric element of the air conditioner and the aluminum heat sink is characterized in that the graphene content of the graphene fabric is increased or the graphene fabric is coated on the copper wire to increase the thermal conductivity.