KR101254154B1 - Heating seat for car using heating fabric of carbon fiber and method of preparing the same - Google Patents

Abstract

PURPOSE: A heating seat for a vehicle using a carbon fiber heating fabric and a manufacturing method thereof are provided to prevent overheating and disconnection by autonomously controlling temperature and to prevent damage to the health of passengers due to generation of electromagnetic waves. CONSTITUTION: A heating seat for a vehicle using a carbon fiber heating fabric comprises a bottom plate(20), a back plate(20'), and a heating fabric(23,23'). The heating fabric is comprised of a material in which a fabric including carbon fibers is coated with polymer resin. The material controls exothermic temperature of the heating fabric by controlling the temperature of the carbon fibers by directly connected the carbon fibers to a power source without a temperature control device.

Description

Heated seat for car using heating fabric of carbon fiber and method of preparing the same}

The present invention relates to a heating sheet for a vehicle using a carbon fiber heating fabric and a method of manufacturing the same, more specifically, the heating temperature of the heating fabric by the temperature control of the carbon fiber by the temperature control itself without a thermostat such as a thermostat range The present invention relates to a heating sheet for automobiles and a method of manufacturing the same, which are advantageous for the health of the occupants by controlling the device in a simple manner, without the risk of disconnection, and by blocking the source of electromagnetic waves.

Recently, various convenience devices are installed in a car to satisfy a consumer's emotion and ride comfort.

Among them, a heating seat for satisfying the passenger's emotion by increasing the temperature of the vehicle seat in winter is applied to not only large luxury vehicles but also small vehicles and light vehicles.

Such a heating seat is generally driven by installing a heating conductor inside a cushion and a back of a vehicle seat and supplying a vehicle power.

Figure 1 shows that the heating conductor is installed in such a conventional car seat. The heating sheet for automobiles using the conventional heating wire is used as a heating wire in the form of attaching a metal heating wire such as copper wire or nichrome wire to the nonwoven fabric. In order to prevent overheating due to the metal heating wire, a bimetal, an actuator or a thermostat is used. A thermostat, such as thermostat, should be installed between the power supply and the metal heating wire. Therefore, additional cost is required to install the thermostat, space is required to mount the thermostat, and if a problem such as a malfunction occurs in the thermostat, it is difficult to control the temperature of the metal heating wire, causing a fire or a passenger inside the vehicle. There is a possibility of being burned.

In addition, the heating sheet for automobile using the existing metal heating wire is to heat the sheet by installing the metal heating wire on the bottom plate and the back plate, if the disconnection occurs in the recommended metal heating wire, it is difficult to exhibit the function of the heating sheet, for repair There is a problem that excessive repair costs occur because you have to tear off and reinstall. Particularly, in order to manufacture the heating sheet, there is a groove 11 formed in the middle portion of the bottom plate and the back plate to connect the outer seat cover, and the upper and lower heating wires must be connected to the groove. Since the bent to insert into the groove 11 and then connected, there was a possibility that disconnection occurs in the bent portion in the manufacturing process or use process. In the existing automotive heating seats, if a heating wire break occurs, the heating seat does not function, and thus, repairs have to be performed, which may be a dissatisfaction factor for consumers.

In addition, in the case of the heating sheet using a conventional metal heating wire, electromagnetic waves are generated in the metal heating wire, which adversely affects the health of the occupant, causing the occupant to be reluctant to use the heating device.

As a related art, Korean Patent Application Publication No. 90-18588 discloses electric heating heating of an automobile seat in which an alignment line provided with a thermostat is bent on the bottom inner surface of a seat of a chair so that electric heating heating is performed by using a battery power in the vehicle. Disclosed is a device, and Korean Patent Laid-Open Publication No. 2002-0023192 discloses a continuous on-off in order to improve the problem that a large temperature variation of a heating sheet occurs due to a wide time interval of physical on-off repetitive operation in a temperature control device. It is proposed a technique for reducing the temperature deviation by having a device that can be turned off.

In addition, the Republic of Korea Patent Publication No. 2012-0108597 is a heating mat temperature control device for a vehicle seat that is installed inside the seat back of the vehicle to adjust the temperature of the seat, by having a temperature sensor at the bottom of the front side of both sides of the lower heating wire Disclosed is a temperature control device capable of enhancing a temperature sensing effect by preventing a temperature sensor from contacting a passenger's back.

As mentioned above, all of the existing technologies use a method of heating a bottom plate and a back plate by connecting a metal heating wire to a power source in manufacturing a heating sheet, and thus requires equipment such as a temperature sensor and a thermostat. The problem remains, and there is a concern that the electromagnetic waves generated from the hot wires may adversely affect the health of the occupants, so that the occupants are reluctant to use them for a long time.

The present invention has been newly developed in consideration of the above-described situation of the prior art, and does not overheat itself by controlling the temperature without the temperature sensor and the temperature control device, there is no fear of disconnection, and the health of the occupants due to the generation of electromagnetic waves An object of the present invention is to provide a heating sheet for a vehicle and a method of manufacturing the same.

In order to achieve the above object,

In an automobile seat in which the bottom plate and the back plate are integrally connected,

It includes a heating fabric in the direction in contact with the body of the bottom plate and back plate

The heating fabric is composed of a material coated with a polymer resin of the fabric containing carbon fiber, the material coated with a polymer resin of the fabric containing the carbon fiber is directly connected to the power source without a temperature control device and the temperature of the carbon fiber itself Provided is a heating sheet for an automobile using a carbon fiber heating fabric, characterized in that the heating temperature of the heating fabric is controlled by the control.

In addition,

Preparing an automobile seat in which the bottom plate and the back plate are integrally connected;

Attaching a heating fabric in a direction of contacting the body of the bottom plate and the back plate; And

Covering a seat cover on the outside of the heating fabric

/ RTI >

The heating fabric is composed of a material coated with a polymer resin of the fabric including the carbon fiber, the material coated with a polymer resin of the fabric containing the carbon fiber is directly connected to the power supply without a temperature control device, the temperature of the carbon fiber itself Provided is a method for manufacturing a heating sheet for a vehicle using a carbon fiber heating fabric, characterized in that the heating temperature of the heating fabric is controlled by the control.

Referring to the characteristics and advantages of the vehicle heating sheet and the manufacturing method using the carbon fiber heating fabric according to the present invention.

1. First, a material coated with a polymer resin of a fabric including carbon fiber is used as a heating source, and since the material has a characteristic of temperature control of carbon fiber, a separate temperature sensor and temperature Even without a regulator, the temperature is controlled by itself to prevent overheating. Therefore, there is no defect problem caused by devices such as a temperature sensor and a thermostat, and the cost can be reduced.

2. In addition, in the case of a heating sheet using a conventional metal heating wire, if the metal heating wire is disconnected, there is a problem that the entire sheet cannot function. However, in the present invention, the fabric containing the carbon fiber is used instead of the metal heating wire. Since resin coated with resin is used as a heat generating source and carbon fiber is woven in parallel form, there is no fear of disconnection, so the heating sheet can be used semi-permanently.

3. In addition, in the case of the heating sheet using a conventional metal heating wire, since the electromagnetic wave generated from the heating wire adversely affects the health of the occupant, the passenger is reluctant to operate the heating seat, and in particular, avoids operating for a long time. In the present invention, there was a limit, but the present invention does not use the metal heating wire as a heating source, but because the fabric containing carbon fiber as a heating source does not generate electromagnetic waves. Therefore, there is no problem of health damage due to electromagnetic waves, so that the occupant can use it freely and there is no worry about health even for a long time use, thereby increasing the usability of the heating seat.

4. In addition, the carbon fiber itself can have various beneficial functions such as far-infrared radiation, anion radiation, and antimicrobial effects. The interior of the vehicle is softly heated without a separate heater to give passengers a pleasant feeling. Can be.

1 shows that a metal heating conductor is provided in a conventional automobile seat.
Figure 2 is a view showing a separate non-woven fabric with a metal heating conductor attached to a conventional vehicle seat.
3 is a diagram illustrating a circuit to which a metal heating conductor and a thermostat (thermostat) used in a conventional automobile seat are connected.
Figure 4 shows a heating sheet for a vehicle equipped with a material coated with a polymer resin of a fabric containing a carbon fiber according to an embodiment of the present invention.
Figure 5 is a view showing a separate material coated with a polymer resin fabric containing carbon fibers used in the heating sheet for automobiles according to an embodiment of the present invention.
6 is a view showing a circuit in which a material coated with a polymer resin of a fabric including carbon fibers used in a vehicle heating sheet according to an embodiment of the present invention is connected to a power source.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, and thus are not limitative of the scope of the invention.

1 shows that a metal heating conductor is installed in a conventional heating sheet for a vehicle. As shown in FIG. 1, a conventional automotive seat attaches metal heating wires 12, 12 ′, such as nichrome wire or copper wire, to nonwoven fabrics 14, 14 ′, and is used for automobiles on the metal heating wires 12, 12 ′. The principle of generating heat by supplying power is used.

Figure 2 is a view showing a separate non-woven fabric with a metal heating conductor attached to a conventional vehicle seat. As shown in FIG. 2, the nonwoven fabrics 14, 14 ′ attached to the bottom plate 10 or the back plate 10 ′ of the car seat are provided with an outer cover (not shown) about halfway between the bottom plate and the back plate. Since the grooves 11 and 11 'are formed to be long, they are inserted into the grooves so that the upper and lower portions thereof are connected to each other. plate). Therefore, the metal heating wire is the thinly cut portion, the two strands are connected up and down. The metal heating wire inserted into the bent portion may cause disconnection in the process of being inserted or installed in the sheet. If the metal heating wire is broken, the function as a heating sheet will not be shown. Repairing is necessary, but it is difficult to find and repair the broken wire, so the entire nonwoven fabric must be replaced. As a result, the cost of repairs is excessive and the same problem remains.

FIG. 3 is a diagram illustrating a circuit to which metal heating conductors 12 and 12 'and a temperature control device 13 and 13' used in a conventional automobile seat are connected. As shown in FIG. 3, the metal heating conductor may be overheated due to excessively high temperature when the power is supplied, and various devices for preventing overheating may be caused by a burner or a fire inside the vehicle. Should be provided. As one of such overheat protection devices, thermostats, such as temperature sensors and thermostats, use the bimetal principle to cut off the power supply when the temperature rises above the set temperature and to supply power when the temperature goes below the set temperature. Adjust the temperature in such a way that it starts.

Such a conventional heating sheet for automobiles must be provided with a device for preventing overheating, such as a temperature control device and a temperature sensing sensor, causing a rise in manufacturing costs. In addition, if the device, such as the temperature control device or the temperature sensor is defective or failure occurs, there is a number of problems, such as a cause of consumer complaints and additional costs are added to perform the replacement.

The present invention has been developed to solve the problems of the conventional heating sheet using a metal heating wire and to provide a heating sheet that is not harmful to health.

Figure 4 shows a heating sheet for a vehicle equipped with a material coated with a polymer resin of a fabric containing a carbon fiber according to an embodiment of the present invention.

As shown in Figure 4, the vehicle heating sheet according to the present invention is largely connected to the bottom plate 20 and the back plate 20 'integrally, the heating fabric in a direction in contact with the human body of the bottom plate and the back plate ( 23, 23 '), wherein the heating fabric is composed of a material coated with a polymer resin of the fabric including the carbon fiber, the fabric containing the carbon fiber is directly connected to the power source without a temperature control device and the The self-temperature control is characterized in that the heating temperature of the heating fabric is adjusted.

In the present invention, the temperature range in which the exothermic temperature of the heating fabric is controlled by the temperature control of the carbon fiber is preferably in the range of 30 to 60 ° C., which is the use temperature of the heating fabric. The heating fabric has an exothermic temperature controlled by self temperature control of the carbon fibers. The heating fabric is woven with warp and weft yarns such as nylon, cotton fiber, polyester fiber, etc., but the weft yarns are woven including carbon fibers at regular intervals, and the warp yarns include polar lines 22 and 22 'with a certain distance from both ends. After weaving, the whole fabric is coated with a polymer resin. In the present invention, the polymer resin used as the coating agent may be rubber-based or synthetic resin-based, and specific examples thereof include PVC, PE, PET, silicone, urethane, and the like. .

The material coated with the polymer resin of the fabric including the carbon fiber according to the present invention is heat generated by applying electricity to the carbon fiber when power is supplied to the pole. The heat generation of the carbon fiber is characterized in that the temperature is raised to some extent by the carbon fiber's own temperature control system when the power is supplied to the poles and is not increased anymore. Such characteristics are referred to as PTC (positive temperature control) in the present invention. In order to provide such a temperature control system, the exothermic temperature of the heating fabric may be controlled in the above temperature range by appropriately adjusting the composition and coating thickness of the carbon coating stock solution in the process of manufacturing the carbon fiber. In the present invention, the composition and coating thickness of the carbon coating stock solution as described above are described as follows. That is, for example, 10 to 55 wt% of carbon powder having a particle size of 0.01 to 0.1 μm, 5 to 50 wt% of carbon powder having a particle size of 1 to 10 μm, and 0.1 to 40 wt% of conductive fillers such as magnesium oxide and silicon carbide. Solids and solvents, synthetic resins, dispersants, coupling agents, defoamers, antioxidants, and the like may be mixed with a predetermined amount of components such as carbon coating stock solution prepared through a grinding process. In addition, the thickness of the carbon coating is preferably in the range of 0.1 ~ 100㎛. However, the composition and coating thickness of the carbon coating stock solution in the present invention may be used without particular limitation as long as it is configured to control the exothermic temperature of the heating fabric in the range of 30 to 60 ° C.

The heating fabric according to the present invention is kept constant without excessively rising the temperature even if power is continuously supplied to the poles 22 and 22 'by the PTC system. This eliminates the need for temperature sensors and thermostats (such as bimetals, actuators or thermostats).

As described above, since the temperature sensor and the temperature control device are not required, the manufacturing of the heating sheet is simple, and the problem caused by the device failure or defect can be blocked, thereby eliminating complaints from consumers.

In addition, although not necessarily required, a temperature setting device may be additionally provided to allow a passenger to select a desired temperature, whereby the heating temperature may be set step by step.

Meanwhile, the bottom plate 20 and the back plate 20 'of the heating sheet for automobiles have at least one or more grooves 21 and 21' for joining the outer cover, and the wires pass through the grooves. The heating fabric must be bent and fitted into the grooves to make this connection. In the present invention, the polar wires 22 and 22 'may be bent and fitted into the grooves so that the polar lines 22 and 22' are connected through the grooves 21 and 21 '.

However, when bent and fitted as a whole, it may not be easy to be inserted into the groove due to the elasticity of the heating fabrics 23 and 23 ', so that there may be a problem that the back surface is attached to the sheet using double-sided tape. Therefore, if you cut the middle of the heating fabric and insert only the connected part into the groove, the elasticity is small so that it is easily inserted and there is no need to use double-sided tape. Figure 5 is a view showing a separate material coated with a polymer resin fabric containing carbon fibers used in the heating sheet for automobiles according to an embodiment of the present invention. As shown in FIG. 5, the heating fabric at the position inserted into the outer cover (not shown) coupling grooves 21 and 21 ′ of the seat according to the present invention is not cut and the portion not inserted into the groove is cut and removed. This makes it easy to insert into the groove. At this time, the pole part of both ends should not be cut, but should be inserted and mounted in the groove.

In the present invention, since the heating fabric coated with the polymer resin is used, there is no problem that the polar lines 22 and 22 'are disconnected in the process of being inserted into or used in the groove, and because the polar lines are woven in multiple strands, diarrhea Even if some polar wires are disconnected, there is no problem in the overall heating function. In addition, since the weft yarns are woven in a parallel form, carbon fibers can semi-permanently exhibit the function of the heating sheet without any risk of disconnection.

In addition, most of all, the carbon fiber's own temperature control function eliminates the need for temperature control means such as thermostats and temperature sensing sensors.

FIG. 6 is a diagram illustrating a circuit in which a material coated with a polymer resin of a fabric including carbon fibers used in a vehicle heating sheet according to an embodiment of the present invention is connected to a power source. As shown in Figure 6, the electrical circuit of the heating sheet according to the present invention is very simple to manufacture because it is sufficient to simply connect the power supply from both sides to the pole of the heating fabric.

In addition, since a heating fabric including carbon fiber is used as a heat generating source, and the polar wire does not generate heat, only the role of supplying electricity to the carbon fiber is almost no electromagnetic wave generation, thereby solving problems such as damage to the passenger's health due to electromagnetic waves. . In addition, the carbon fiber itself has a number of beneficial functions such as far-infrared radiation, anion radiation, and antimicrobial effects, and can be obtained. The interior of the vehicle is softly heated without a separate heater to make the passenger feel comfortable. Can be.

In the above described the vehicle heating sheet according to the present invention, the scope of the present invention includes a method for manufacturing the same in addition to the vehicle heating sheet.

The manufacturing method of the vehicle heating sheet of the present invention

Preparing an automobile seat in which the bottom plate and the back plate are integrally connected;

Attaching a heating fabric in a direction of contacting the body of the bottom plate and the back plate; And

Covering a seat cover on the outside of the heating fabric

/ RTI >

The heating fabric is composed of a material coated with a polymer resin of the fabric including the carbon fiber, the material coated with a polymer resin of the fabric containing the carbon fiber is directly connected to the power supply without a temperature control device, the temperature of the carbon fiber itself The heating temperature of the heating fabric is controlled by the control.

In the manufacturing method of the vehicle heating sheet according to the present invention, it is preferable that the temperature range in which the exothermic temperature of the heating fabric is controlled by the temperature control of the carbon fiber is 30 to 60 ° C.

In addition, in the manufacturing method of the vehicle heating sheet according to the present invention, controlling the heating temperature of the heating fabric to 30 ~ 60 ℃ can be controlled by the carbon coating stock composition and coating thickness to produce carbon fiber. .

In addition, in the manufacturing method of the vehicle heating sheet according to the present invention, the bottom plate and the back plate is formed in the middle portion of the groove for coupling the outer cover, the heating fabric is bent entirely into the groove into the groove Can be fitted.

Alternatively, the heating fabric may be bent into the groove to fit into the groove, but only a portion including the polar portion may be inserted into the groove, and the remaining portion may be cut and not inserted into the groove.

Other things not mentioned here are the same as described above.

Although it has been described above with reference to the preferred accompanying drawings of the present invention, those skilled in the art can be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the present invention described in the claims below. I can understand.

10: bottom plate of sheet 10 ': back plate of sheet
11, 11 ': groove 12, 12': metal heating conductor
13, 13 ': thermostat 14, 14': nonwoven fabric
20: bottom plate of sheet 20 ': back plate of sheet
21, 21 ': Home 22, 22': Polar
23, 23 ': Heating fabric 25, 25': Power supply line

Claims (11)

In an automobile seat in which the bottom plate and the back plate are integrally connected,
It includes a heating fabric in the direction in contact with the body of the bottom plate and back plate
The heating fabric is composed of a material coated with a polymer resin of a fabric including carbon fiber, weaving warp and weft yarn with nylon, cotton fiber or polyester, weaving including carbon fiber at regular intervals to the weft yarn, both ends of the warp yarn After weaving with a polar line at a certain distance from PVC, PE. It is manufactured by coating the whole fabric with a polymer resin selected from PET, silicone and urethane resin, and the fabric including the carbon fiber is directly connected to the power source without a temperature control device, and the exothermic temperature of the heating fabric is controlled by the temperature control of the carbon fiber. It is adjusted to 30 ~ 60 ℃, the temperature range is adjusted to the composition of the carbon stock solution for producing the carbon fiber having a particle size of 10 ~ 55% by weight, 1 ~ 10㎛ carbon powder having a particle size of 0.01 ~ 0.1㎛ 5 to 50% by weight of the carbon powder, 0.1 to 40% by weight of the conductive filler mixed with a solvent, a synthetic resin, a dispersant, a coupling agent, an antifoaming agent, and an antioxidant component, using a carbon coating stock solution prepared by grinding Automotive heating sheet using a carbon fiber heating fabric, characterized in that by coating the thickness in the range of 0.1 ~ 100㎛.
delete delete The method of claim 1, wherein the bottom plate and the back plate is formed in the middle portion of the groove for joining the outer cover, the heating fabric using the carbon fiber heating fabric, characterized in that the heating fabric is bent into the groove as a whole Automotive heating seat.
The method of claim 1, wherein the bottom plate and the back plate is formed in the middle portion of the groove for joining the outer cover, the heating fabric is bent into the groove to be fitted into the groove, but only a portion including the polar portion is fitted into the groove and the rest Car heating sheet using a carbon fiber heating fabric, characterized in that the part is cut and not inserted into the groove.
The heating sheet for automobiles using a carbon fiber heating fabric according to claim 1, further comprising a temperature setting device so that a passenger can select a desired temperature.
Preparing an automobile seat in which the bottom plate and the back plate are integrally connected;
Attaching a heating fabric in a direction of contacting the body of the bottom plate and the back plate; And
Covering a seat cover on the outside of the heating fabric
Including;
The heating fabric is composed of a material coated with a polymer resin of a fabric including carbon fiber, weaving warp and weft yarn with nylon, cotton fiber or polyester, weaving including carbon fiber at regular intervals to the weft yarn, both ends of the warp yarn After weaving with a polar line at a certain distance from PVC, PE. It is manufactured by coating the whole fabric with a polymer resin selected from PET, silicone and urethane resin, and the material coated with the polymer resin of the fabric including the carbon fiber is directly connected to the power supply without a temperature control device. Heating temperature of the heating fabric is adjusted to 30 ~ 60 ℃, the temperature range is adjusted to the composition of the carbon stock solution for producing the carbon fiber 10 ~ 55% by weight, 1 ~ 1 ~ 1 ~ 1㎛ carbon powder having a particle size of 0.01 ~ 0.1㎛ Carbon powder prepared by mixing and pulverizing 5 to 50% by weight of carbon powder having a particle size of 10 μm and 0.1 to 40% by weight of conductive filler with a solvent, a synthetic resin, a dispersant, a coupling agent, an antifoaming agent, and an antioxidant component Production of automotive heating sheet using a carbon fiber heating fabric, characterized in that by using the coating stock solution, the thickness of the carbon coating to be in the range of 0.1 ~ 100㎛ Way.
delete delete The method according to claim 7, wherein the bottom plate and the back plate is formed in the middle portion of the groove for joining the outer cover, the heating fabric using the carbon fiber heating fabric, characterized in that the heating fabric is bent into the groove as a whole Method of manufacturing a heating sheet for an automobile.
According to claim 7, The bottom plate and the back plate is formed in the middle portion of the groove for joining the outer cover, the heating fabric is bent into the groove is fitted into the groove with only the portion including the polar line is inserted into the groove and the rest A part is cut and does not fit in a groove, The manufacturing method of the automotive heating sheet using the carbon fiber heating fabric characterized by the above-mentioned.

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