KR20110053869A - Safety seat for infant having pad using flexible heating unit - Google Patents

Abstract

PURPOSE: A baby car-seat with a pad using a flexible heating unit is provided to prevent voltage drop and maintain a temperature and thus extend lifetime since errors or temperature differences are prevented in use. CONSTITUTION: A baby car-seat(10) with a pad using a flexible heating unit comprises a frame(18), a seat cover(16) and a belt member(17). A separate heating pad(30) is formed on the cover of the baby car-seat. The heating pad is connected to a controller(20), which comprises a rechargeable power supply unit(26). Power is supplied to the heating pad from the rechargeable power supply unit by the operation of the controller exposed from the seat cover. The seat cover is formed by the sewing coupling of an outer cover and an inner cover. The heating pad is installed between the outer and inner covers.

Description

Safety seat for infant having pad using flexible heating unit

The present invention relates to an infant car seat for allowing a newborn baby, infant, and infant to safely sit or move in a vehicle. More particularly, the present invention can be carried in a heating pad made of a flexible heating mesh or a heating element made of a flexible heating wire or conductive twisted yarn. While combining the controller with a built-in rechargeable power supply unit, and the heating pad is configured in a single or split type by fixing them directly to various positions on the seat cover of the baby car seat or by forming a separate pocket inserted into the pocket, It is designed to effectively protect the temperature of newborns, infants and infants in winter or low temperature, as well as to perform cold protection.

In general, when children, such as newborns, infants and infants want to move by vehicle, it is common to use an infant car seat. That is, since the vehicle seat is made to fit the physical condition of an adult, when a child including a newborn is seated on the vehicle seat, the seat and the back and the seat belt that are too wide are fastened across at a high position.

Accordingly, when a child is seated on the vehicle seat as described above, the seat belt may not support the child's body safely in a situation such as sudden start or sudden braking or a collision or collision of the vehicle, but may act as a weapon such as a strangle. Therefore, it is generally desirable to use a baby car seat that is made to fit the body structure of a child.

Such an infant car seat has various structures and shapes. In the case of a conventional infant car seat, a seat cover made of a soft cotton fabric is placed on a surface of a frame formed by injection molding a synthetic resin material, and the belt member fixed from the frame. Is mounted so that the body of the child sitting on the seat cover can be firmly fixed.

These infant car seats allow children, such as newborns, infants, and infants, to safely and relatively safely move or activities in the vehicle for a relatively long time.

However, the above-described infant car seat is not provided with a separate heating wire when the temperature inside the vehicle is low, such as winter, the children using it will be cold and uncomfortable.

That is, in general, the seat in the vehicle is manufactured in a state in which the heating wire is built in the seat and the back portion in preparation for the winter, while the child car seat as described above do not generate heat at all in the winter, such as the inconvenience caused by the Will be appealed. In particular, young children, such as newborns, are very sensitive to rapid temperature changes due to a weakened human immune system, and when exposed to prolonged exposure to rapid temperature changes, they suffer from colds and the like. It is natural that such sensitive reactions and diseases such as colds are not extremely beneficial to the physical and mental health of small children, such as newborns.

In addition, adults often use only the heating wire of the car seat without the heater operating due to the frustration caused by the hot wind in winter, and in this case, the young child sitting in the baby car seat is in the cold state unconsciously. Often left unattended, these young children will suffer from colds caused by cold.

Accordingly, although there have been attempts to embed a separate heating element in the seat cover of the infant car seat as described above, the infant car seat sheet that is continuously folded and unfolded and constantly under pressure by the weight of the child Due to the characteristics of the cover, such as breakage due to the breakage of the existing heating element is not the situation that the car seat having a heat generating function is specifically designed or implemented, as well as having a very short service life.

In addition, the above-described infant car seat heating element is in addition to the problem of disconnection for bending to provide continuous power and continuous operation by providing the power set by the user, so as to have excessive power consumption in the infant car seat having a long mobility in the outdoors There are technical difficulties to apply.

In addition, the heating element is a power supply is made only at both ends of the heating element, if the width or length of the heating element is long, the resistance value is increased proportionally, the instantaneous voltage drop occurs and the amount of current decreases the heating temperature There is a problem falling.

In addition, due to voltage drop and decreasing amount of current, the local low temperature phenomenon occurs or the heat generation itself is not available due to the technical limitations such as difficult to use as a heating element. In addition, when the local high temperature phenomenon occurs, the insulation coating layer is destroyed, which may cause problems of safety accidents such as electric shock or fire.

The present invention is to solve the problems as described above, connecting the controller with a built-in rechargeable power supply to the heating pad made by embedding the main and auxiliary power lines in the heating element made of a flexible heating mesh or flexible heating wire or conductive twisted yarn, The heating pad is composed of a single type or split type to sew it into the seat cover of the infant car seat or to form a separate pocket on the seat cover surface to insert the heating pad,

An object of the present invention is to provide an infant car seat having a heating pad by a flexible heating element, which reasonably overcomes the problems of the conventional heating element and the infant car seat due to the heating effect and electrical stability of the flexible heating pad. will be.

The present invention for achieving the above object, while forming a separate heating pad in the infant car seat having a seat cover made of the outer shell and the inner shell and the cushion member, the heating pad is a flexible heating mesh or flexible heating wire A heating element formed by connecting an auxiliary power line to the heating pad, wherein the heating pad is connected to a controller having a rechargeable power supply unit, and the rechargeable power supply unit is connected to an AC adapter, By the operation of the exposed controller is configured to supply power to the heating pad of the rechargeable power supply.

According to the present invention, the seat cover of an infant car seat is not excessively heavy or impaired in mobility due to the thin, flexible, yet excellent elasticity heating pad, and when the split type heating pad is applied, heat of a desired portion is generated. The pad can be selectively operated, which is excellent in terms of efficiency and convenience of use, and since the heating pad is heated in addition to the warmth of the car seat seat cover itself, it is able to perform excellent cold protection and body temperature protection and flexibility. The heating element maintains an even distribution of the voltage as a whole, so that the heating temperature can be maintained evenly, while preventing a current collision or voltage drop, thereby preventing an error in use or deviation of the heating temperature, thereby extending the service life.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

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

1 is an overall configuration of the infant car seat is formed with a heating pad according to the present invention, Figure 2 is an overall view of the seat cover of the infant car seat according to the invention.

The general infant car seat 10 is made by covering the seat cover 16 made of fiber paper such as soft cotton fabric paper on the surface of the synthetic resin frame 18 made to keep the child comfortable sitting, the infant car seat (10) has a belt member (17) fixed to the frame (18) and engaged and separated from the front of the seat cover (16).

Accordingly, in the present invention, in the infant car seat 10 having various forms as described above, a separate heating pad 30 is formed on the seat cover 16.

That is, the infant car seat 10 according to the present invention is formed by coupling or forming a separate heating pad 30 to the seat cover 16, the heating pad 30 as described above is a rechargeable power supply unit 26 It is connected to the controller 20 having a) to generate heat by supplying power to the heating pad 30 from the rechargeable power supply unit 26 through the operation of the controller 20, the temperature for the heating pad 30 As it rises, young children such as newborns using the infant car seat of the present invention will feel warm due to the warming action of the seat cover 16 to be in close contact.

At this time, the heating pad 30 is formed in a single unit with respect to the seat cover 16 of the infant car seat 10 or divided into a plurality of the whole surface of the seat cover 16 of the infant car seat 10 and parallel to each other Since it may be formed in a connected form, it will be possible to apply a variety of variables without limitation on the position and number of the heating pad 30 according to the convenience and variety of the user or the manufacturer.

In particular, the seat cover 16 of the child car seat 10 as described above may be composed of only one layer of the outer shell 11 made of various materials, the outer shell 11 and the sewing body or shell 11 of the inner shell 12 (11) ) And the cushion member 15 may be manufactured in a form in which the inner shell 12 is embedded.

Accordingly, the heating pad 30 positioned in the seat cover 16 as described above may be ideally formed to have a shape corresponding to the seat cover 16 by forming a single object, and the seat cover as necessary. The heating pad 30 may be divided into a plurality of parts so that only limited elements of the 16 may be installed.

In addition, when the seat cover 16 is made of a sewing configuration of the outer shell 11 and the inner shell 12 and the cushion member 15 therebetween, as shown in FIG. The heating pad 30 can be concealed and fixed by sewing the outer shell 11 and the inner shell 12 in a state in which it is embedded between the 12 and the cushion member 15. In addition, as shown in FIG. 4, the heating pads 30 are not completely concealed and fixed to the inside of the seat cover 16. As shown in FIG. 4, a separate pocket 13 is placed on a surface of the seat cover 16 to a desired position. It may be to be used by inserting the heating pad 30 into the inside of the pocket 13 in the sewing formed state.

In addition, the infant car seat of the present invention as a characteristic configuration in the present invention is to form a separate bag 14 on the surface or the edge of the seat cover 16 to the outside of the controller 20 exposed to the bag 14 It can be stored in the interior of the controller 20 to allow easy management and processing can be made. At this time, the position of the pocket 14 is a seat cover so that the pocket 14 can be located within the field of view of the driver or guardian while the child is placed in the baby seat using the infant car seat 10 described above. It would be ideal to form at the end or side edge of (16).

Such a child car seat 10 of the present invention will appear in the same use form as a conventional general car seat, and the heating pad 30 coupled to the seat cover 16 will have more various configurations. That is, the heating pad 30 may be manufactured in a form in which the plurality of heating pads 30 divided in the seat cover 16 in the unfolded state are connected in parallel to each other as shown in FIG. 5.

In this case, when the heating pads 30 are divided, the heating pads 30 are connected in parallel to each other, and the heating pads 30 are connected to the controller 20 to be provided from the rechargeable power supply unit 26 of the controller 20. Since power is delivered to each of the heating pads 30 at the same time, a fast and efficient heat can be made.

In addition, the controller 20 and the heating pad 30 have a connection structure by a general plug jack and a socket which can be separated from each other in an exposed state, and the controller 20 also has an AC adapter 27 and a plug jack and a socket. By having a connection structure of the separation and coupling by the heat generating pad 30 is a heat generation unnecessary position is to cut off the power through the separation of the plug jack to adjust the most efficient and suitable heat generation state according to the user's convenience.

In particular, when the separate pocket 13 is sewn to the surface of the seat cover 16 may be used by inserting the heating pad 30 in the pocket 13, the pocket 13 shown in FIG. As shown in FIG. 6, when the user needs to separately form only a portion of the user's necessary portion, that is, the back portion, the waist portion, or the thigh portion of the child, the seat cover 16 corresponds to each of these pockets 13. Since the heating pad 30 having a size may be individually inserted or separated, only limited portions may be generated, and when the heating pad 30 is unnecessary, all of the heating pads 30 may be pocketed. It is very economical and reasonable because it can be used in the same form as the seat cover 16 of the conventional general car seat.

As such, when the heating pad 30 is configured in a split form, the selective heating can be performed to extend the heating time, as well as the back, waist, or hip or thigh of a young child such as a newborn baby. By concentrating the heating pad 30 in the heat dissipation is significantly lower than when the heating pad is formed as a whole, it is possible to maintain the heat action as it is.

Accordingly, the seat cover 16 having the heating pad 30 in the state that sufficient charge is made to the rechargeable power supply unit 26 inside the controller 20 in the home using the AC adapter 27. When the controller 20 exposed from the power is supplied to the heating pad 30 by the power of the rechargeable power supply unit 26, the heating pad 30 may be heated as the heating pad 30 is heated.

In addition, in view of the state in which the infant car seat 10 is installed and installed in the vehicle, the AC power adapter 27 is not used to the rechargeable power supply unit 26 of the controller 20 without using the AC adapter 27. While charging may be made, the cigar jack may be connected to the rechargeable power supply unit 26 to allow continuous use.

Hereinafter, the detailed configuration and operation of the controller and the heating pad for the baby car seat of the present invention will be described.

As shown in FIG. 7, the controller 20 of the heating pad according to the present invention includes a selection button part 21, a time setting part 22, and a temperature setting part 23, and the time setting part 22. And the central processing unit 24 in a state where the temperature setting unit 23 is connected with the temperature adjusted by the time setting unit 22 and the temperature setting unit 23 by receiving power from a separate rechargeable power supply unit 26. Having the power interruption time will deliver the power to the heating pad 30. In addition, the time, temperature and state of charge set as described above can be confirmed through a separate display unit 25.

Here, the rechargeable power supply unit 26 is made of a low-voltage direct-current battery or a supercapacitor, and the like is to use the power stored in the state stored in the home AC power using the AC adapter 27 or the like. The infant car seat 10 equipped with the seat cover 16 to which the heating pad 30 is coupled due to the rechargeable power supply 26 will not be hindered by movement, and thus will be very convenient to use outdoors.

That is, the controller 20 controls the power provided from the rechargeable power supply unit 26 and transmits the power to the heating pad 30. The controller 20 includes a selection button unit 21 and The time setting part 22, the temperature setting part 23, the central processing part 24, and the display part 25 are formed, and the rechargeable power supply part 26 is integrated.

Accordingly, when the power on, off, time setting and temperature setting are performed through the selection button unit 21, the central processing unit 24, which receives such a signal, generates power suitable for the set value as described above. At the same time, the display unit 25 displays the set time or temperature, displays the remaining battery capacity of the rechargeable power supply unit 26, and the battery voltage. It displays the status of being charged or charged. The display unit 25 may include an LED, a liquid crystal display, and the like.

Therefore, when the operation sequence for the heating pad formed in the infant car seat of the present invention using the controller 20 as described above, first to set the heating temperature for the heating pad 30 by pressing the selection button unit 21. For example, every time a specific button constituting the selection button unit 21 is sequentially pressed, the heating temperature is set in the same order as low temperature, medium temperature, medium temperature, high temperature, ultra high temperature, low temperature, and the like. The temperature can be selected and the selected temperature range can be confirmed by LED lighting on the display unit 25.

In addition, by pressing a specific button constituting the selection button unit 21 is adjusted for the interruption time of the power, the supply time and the interruption time of the power applied to the heating pad 30 is 1 ~ 40 If freely adjusted within the range of minutes to have the temperature set in the temperature setting section 23 and the process of applying power and cut off set in the time setting section 22 is to be repeated continuously.

In particular, the control of the heating temperature in the temperature setting unit 23 as described above is made by varying the amount of current applied to the heating pad 30 in accordance with the operation of the selection button unit 21, the heating pad 30 ), When the overheat cut-off part 33 by bimetal is additionally formed, the power is automatically cut off due to the physical properties of the bimetal when overheated beyond a desired set temperature range, so that a fire or burn may be caused by overheating. You can prevent accidents.

In particular, in operating the heating pad 30 made of a single or multiple heating elements 40 by using the rechargeable power supply unit 26 by the low-voltage DC rechargeable battery, the control operation of the rechargeable power supply unit 26 by the storage battery and the control operation. For various electronic circuits, it is preferable to adopt a structure in which a rechargeable battery and an electronic circuit are fixed together in one case, and a circuit is formed on a board to allow a temperature to be adjusted in multiple stages. Press the switch by (21) once, low temperature, twice press the middle temperature, three times the middle temperature, four times the high temperature, five times the ultra high temperature. Can also be cut off and flowed at regular intervals (e.g. after the first 20 minutes However, after that, the board is connected to the rechargeable battery by making terminals that can be energized and cut off at 10-minute intervals) and then connected to the rechargeable battery.

The rechargeable battery constituting the rechargeable power supply unit 26 should be replaceable, and the inside of the case may include a substrate designed with the above temperature controller function. It would be desirable to make.

In addition, the outside of the case to create a power groove that can be used by plugging in the power cord connected to the waterproof jack is pulled out of the heating pad (30), and can also be used by plugging in the AC adapter (27) used to charge the rechargeable battery, If you plug the adapter jack into the above power groove without removing the rechargeable battery, it will be charged immediately.If you plug in the waterproof jack, it will make a structure to supply electric current to the heating part. Temperature control and power on / off switch on the outside of the case to turn off the power.

Accordingly, the rechargeable power supply unit and the time and temperature control unit are integrally embedded in one case and separately separated from each other to form a heating pad 30 in which the heating element 40 and the overheat cutoff unit 33 are combined. Power supply groove (connector) attached to the (20) will be the most ideal form to be able to use the power jack attached to the heating pad (30).

The heating pad 30 that generates power by being supplied by the controller 20 is manufactured by applying various types of heating means known in the art, such as a flexible heating mesh or a flexible heating wire, to the heating means as described above. As shown in FIG. 8, the heat generating pad 30 is formed by the heat storage carrier 31 at the top thereof, the heat generator 40 at the bottom thereof, and the heat insulation 32 at the bottom thereof, so that they are sewn together. It is adhesively fixed.

At this time, the heat storage transfer material 31 is made by adding a cotton fabric to the upper part of the fabric made of Techno thermo, and the Techno thermo is a combination of a light energy absorbing heat generating yarn and a W-section yarn. It is a new material that realizes higher heat retention by manufacturing, and it has better heat retention than ordinary fabrics even in cloudy weather, where light energy is not active, and it prevents heat from leaking to the outside as it is a material with low thermal conductivity compared to conventional heat storage function yarns. There is a fabric. Accordingly, the heat storage transfer member 31 prevents heat from leaking by the heating element 40, thereby minimizing heat loss due to heat dissipation, and the cotton fabric has a soft touch, thereby making it more comfortable.

In addition, the heat insulator 32 is made of fiber glass silica pads, and fiber glass silica pads are commonly referred to as space suit materials, but they can withstand thousands of degrees Celsius and are oriented in one direction. It is widely known as a material having a function of completely blocking heat conduction, wherein the heat insulator 32 blocks heat from the heat generating body 40 in an unnecessary direction and at the same time the heat is directed toward the human body. Since it can be transmitted intact, it is possible to produce more efficient heat generation characteristics by blocking the release of unnecessary heat.

The flexible heating pad 30 made as described above is very effective because the heat generating action of the heating element 40 located between the heat storage carrier 31 and the heat insulator 32 can be evenly and effectively diffused and conducted.

Here, for the purpose of improving elasticity, durability and chemical resistance, insulation, and waterproofness for the heating pad 30, as shown in FIGS. 9 and 10, the upper and lower surfaces of the heating element 40 are separately provided. As the heat generating pads 30 are formed by attaching and forming the surface sheets 45 and 45 ', the heating pads 30 are elastic or durable due to the material properties of the surface sheets 45 and 45'. Various physical properties such as waterproofness or insulation are greatly improved.

In more detail, the heating element 40 having the power line is placed on the first surface sheet 45, and the second surface sheet 45 ′ is sequentially placed on the upper surface of the heating element 40. Then, when the surface sheets 45, 45 'are pressurized by a high-pressure press device, the surface sheets 45, 45' are thermally melted with each other and the surface sheets 45, 45 'are divided. At the same time, the heating pad 30 in which the heating element 40 is embedded with the power line is completed between the surface sheet covers 45 and 45 '.

In this case, when a separate adhesive sheet 46, such as a plastic sheet, is inserted between the surface sheets 45 and 45 'to be heat-compressed, the vinyl sheet adhesive sheet 46 has a very low melting point. It has the advantage that can be used for the surface sheets 45, 45 'of various materials having a higher melting point than the vinyl paper.

That is, when the surface sheets 45 and 45 'are used as nonwoven fabrics or woven papers, the surface sheets 45 and 45' made of nonwoven fabrics and woven papers, as well as the soft touch, of the heating pad 30 are used. It is to improve durability without affecting ductility, and when the surface sheets 45, 45 'are used as waterproof fabrics such as neoprene, the entire heating pad 30 is waterproof. It is possible to prevent a short circuit or an electric shock to the heating pad.

In addition, when the surface sheets 45 and 45 ′ are used as spandex having excellent elasticity, the heating pad 30 may have more elasticity, so that the heating sheet 30 may have a greater elasticity. Continuous and safe use can be made without difficulty from various pressures and loads applied.

The heating element 40 for constituting the heating pad 30 may be made of a conductive mesh 41 in the form of a mesh or the flexible heating wire 44 in the form of a wire, and the conductive mesh 41 may be used. In case of), it can be said that it has flexibility for a large area, and in the case of the flexible heating wire 44, it has an advantage that it can be effectively used in various fields due to its excellent elasticity.

That is, the heating element 40 is the entire surface of the core material 41a woven in the form of weft and warp or string and blade using fiber yarn or soft synthetic resin yarn or rubber yarn as shown in FIGS. 11 and 12. A conductive coating layer 41b formed of a conductive composition on the surface, and an insulating layer 41c formed by coating or coating an insulator made of liquid silicone rubber or the like on the surface of the conductive coating layer 41b. ), The conductive coating layer 41b made of a conductive composition generates heat by applying power to the conductive mesh 41 so that the overall temperature rise of the heating element 40 is achieved.

In particular, the core 41a woven as described above is impregnated in the conductive composition or the conductive composition is coated or coated on the surface of the core 41a to form the coating layer 41b by the conductive composition. Here, the conductive composition is made by mixing the liquid silicone rubber and the conductive carbon black. Preferably, the liquid silicone rubber and the conductive carbon black may be ideally mixed in a mass ratio of 100: 1 to 15.

In this way, the conductive mesh 41 on which the core 41a, the coating layer 41b, and the insulating layer 41c are formed is connected to a power line for applying power to the coating layer 41b to complete the heating element 40. Could be.

At this time, the power supply line is provided at regular intervals between the main power supply lines 42 and 42 'which are arranged side by side at both ends of the conductive mesh 41 and these main power supply lines 42 and 42'. Comprising an auxiliary power line 43, 43 'is arranged, the main power line 42, 42' and the auxiliary power line 43, 43 'is a coating layer 41b and the conductive composition Since the electrical connection state is maintained, when the power is applied to these main power lines 42 and 42 'and the auxiliary power lines 43 and 43', the coating layer 41b becomes energized and the coating layer 41b. The self acts as a resistor to perform a heat generating action by the resistance.

Particularly, the auxiliary power lines 43 and 43 'are applicable to various numbers according to the width or length of the conductive mesh 41. In the case where the conductive mesh 41 is wide or long, the auxiliary power source is long. The number of lines 43 and 43 'should be increased proportionally so that the distance between power lines is not too far.

Therefore, the flexible heating element 40 can be manufactured by adding or subtracting the number of the auxiliary power lines 43 and 43 'as described above, so that the resistance value of the place where the actual power is supplied even if the length of the heating element is long or wide is increased. It is kept substantially constant so that voltage drop does not occur at all, and current distribution is uniform, thereby preventing local heating or local low temperature phenomenon.

In addition, the main power lines 42 and 42 'and the auxiliary power lines 43 and 43' are to be connected so that powers of different polarities are sequentially applied alternately. In the same case, since the energization will not be performed, the main power lines 42, 42 'and the auxiliary power lines 43, 43' are positively or positively applied so that powers of different polarities can be applied between neighboring power lines. When the separate connection to the power supply of the negative electrode, the heating element 40 is evenly and stably generated from the applied power.

In addition, when a heating element is to be made according to a specific voltage, the grid gap of the conductive mesh 41 is adjusted according to the voltage to be used to adjust the installation interval of the auxiliary power lines 43 and 43 '. . In other words, in order to make a low voltage heating element, the voltage drop occurs at a small resistance value due to the low supply voltage, and the mesh size of the mesh is made very small, and a plurality of auxiliary power lines 43, 43 'are installed. However, while densifying the gap and applying a voltage to be used, the insulating layer 41c (which may be formed by forming an insulating layer by the liquid silicone rubber on the surface of the coating layer or by overlaying a separate coating material, if necessary) is destroyed. It is possible to create the optimal grid size and spacing between the power supply lines to produce the best heat without the need to do so.

On the other hand, in order to make a high-voltage heating mesh, the grid size of the conductive mesh 41 may be increased and the spacing of the auxiliary power lines 43 and 43 'may be increased. At this time, the grid size of the mesh should be adjusted so that the insulation between the horizontal and vertical lines between the grids of the mesh does not break due to the occurrence of corona. The spacing of the supply lines can also be made wider at a maximum distance where no voltage drop occurs.

In addition, in the construction of the heating element 40, the main heating means may be manufactured using the flexible heating wire 44 as shown in FIGS. 13 and 14, wherein the flexible heating wire 44 is a stretchable heat conductive material. Elasticity in which heat conduction is also performed on the surfaces of the flexible core member 44a and the conductive coil wire 44b in a state where the conductive coil wire 44b made of carbon fiber yarn is wound on the surface of the elastic core member 44a made of silicone resin. The stretchable insulating material 44c made of silicone resin is covered and formed. Accordingly, when power is applied to the conductive coil wire 44b of the flexible heating wire 44, the conductive coil wire 44b serves as a resistor to generate heat, and eventually the temperature rise of the flexible heating wire 44 is increased. Of course, the heat generation to the entire heating element 40 through the heat conduction will occur.

In this way, a separate power line for applying power to the conductive coil wire 44b is connected to the flexible heating wire 44 formed by the flexible core material 44a, the conductive coil wire 44b, and the elastic insulating material 44c. As it will be able to complete the desired heating element (40).

At this time, the power supply line is provided at regular intervals between the main power supply lines 42 and 42 'which are arranged side by side at both ends of the stretchable heating line 44 and these main power supply lines 42 and 42'. The main power lines 42 and 42 'and the auxiliary power lines 43 and 43' are electrically connected to the conductive coating line 44b. Since the connection state is maintained, when power is applied to the main power lines 42 and 42 'and the auxiliary power lines 43 and 43', the conductive coil lines 44b become energized and the conductive coil lines ( 44b) itself is to act as a resistor to perform the exothermic action by the resistance.

Particularly, the auxiliary power lines 43 and 43 'may be applied to various numbers according to the total length of the flexible heating line 44. When the length of the flexible heating line 44 is long, the auxiliary power line 43 43 ') should be increased proportionally so that the distance between power lines is not too far apart.

Therefore, the heating element 40 can be manufactured by adding or subtracting the number of the auxiliary power lines 43 and 43 'as described above, so that the resistance value of the actual power supply is substantially constant, no matter how long the heating element is. Not only does the voltage drop occur at all, but the current distribution is uniform, thereby preventing local heating or local low temperature.

In addition, the main power lines 42 and 42 'and the auxiliary power lines 43 and 43' are to be connected so that powers of different polarities are sequentially applied alternately, and the polarities of neighboring power lines are the same. In this case, since energization will not occur, the main power lines 42 and 42 'and the auxiliary power lines 43 and 43' are positive or negative so that power of different polarities can be applied between adjacent power lines. When the separate connection to the power supply of the stretchable heating element 40 is applied evenly and stably generated heat from the applied power.

In addition, when the heating element is to be made according to a specific voltage, the length of the flexible heating wire 44 may be adjusted according to the voltage to be used to adjust the installation interval of the auxiliary power lines 43 and 43 'installed therein. That is, in order to make a low voltage heating element, a plurality of auxiliary power lines 43 and 43 'are provided for the flexible heating line 44, considering that a voltage drop occurs at a small resistance value due to a low supply voltage. By narrowing the spacing and applying the voltage to be used, it is necessary to create an optimum spacing of the power supply line that produces the best heat without destroying the insulation.

On the other hand, in order to make a high voltage heating element, the spacing of the auxiliary power lines 43 and 43 'may be wider with respect to the entire length of the flexible heating line 44. At this time, the spacing of the auxiliary power lines 43, 43 'is to be made wider to the maximum distance that the voltage drop does not occur.

In addition, in the construction of the heating element 40, the main heating means may be manufactured using the conductive twisted yarn 47 as shown in Figs. 15 and 16, and the conductive twisted yarn 47 is made of non-combustible and The conductive layer 47b was formed by coating a conductive composition made of a mixture of liquid silicone rubber and carbon black on the surface of the screening 47a formed by joining several strands of glass fibers having durability and not absorbing moisture. In this state, the insulating layer 47c made of stretchable silicone resin is coated on the surface of the conductive layer 47b.

When the conductive twisted yarn 47 is applied with power from both ends, heat is generated while the conductive layer 47b plays a role of a resistor, and eventually, heat from the conductive layer 47b is insulated from the insulating layer 47c. While conducting through the heating element 40 is to perform the heating action.

In this way, the conductive twisted yarn 47 made of the screening 47a made of glass fiber, the conductive layer 47b made of carbon black, and the insulating layer 47c made of silicone rubber is woven together in the form of a weft and an inclined yarn. In this case, the method of weaving the net by the conductive twisted yarn 47 is a conductive cross that crosses each other by combining a plain weave and a plain weave, not tricot or knitted. The point of contact between the twisted yarns 47 is to be naturally produced. Accordingly, as the power is applied to the conductive twisted yarn 47 as described above, the heating element 40 by the conductive twisted yarn 47 performs a heat action.

At this time, as a means for applying power to the conductive twisted yarn 47, main power lines 42 (42 ') and these main power lines (parallel) disposed at both ends of the conductive twisted yarn 47 in parallel with each other ( 42 and 42 ', which are composed of auxiliary power lines 43 and 43' which are arranged at regular intervals between the main power lines 42 and 42 'and the auxiliary power line 43 ( 43 'maintains electrical connection with the conductive layer 47b of the conductive twisted yarn 47, so that power is supplied to these main power lines 42, 42' and auxiliary power lines 43, 43 '. In this case, the conductive twisted yarn 47 is in an energized state and at the same time, the conductive layer 47b itself performs a role of a resistor to perform a heat generating action by resistance.

Here, the main power lines 42 and 42 'and the auxiliary power lines 43 and 43' may be suitable for supplying a stable power supply using a braided electrode formed by braiding a conductive wire. In addition, as a method of connecting or fixing the main power supply lines 42 and 42 'and the auxiliary power supply lines 43 and 43' by the conductive twisted yarn 47, they are connected to each other using separate weaving yarns. It would be more preferable to be able to maintain a stable ground state without being separated or separated.

In particular, the auxiliary power lines 43, 43 'can be applied in various numbers according to the total length of the conductive twisted yarn 47, when the length of the conductive twisted yarn 47 is long or wide The number of auxiliary power lines 43 and 43 'should be increased proportionally so that the distance between power lines is not too far.

Therefore, the heating element 40 can be manufactured by adding or subtracting the number of the auxiliary power lines 43 and 43 'as described above, so that the resistance value of the actual power supply is substantially constant, no matter how long the heating element is. Not only does the voltage drop occur at all, but the current distribution is uniform, thereby preventing local heating or local low temperature.

The main power lines 42 and 42 'and the auxiliary power lines 43 and 43' applied to the heating element made of the conductive twisted yarn 47 are connected so that power of different polarities is alternately sequentially applied. If the polarities of the power lines adjacent to each other are the same, the energization will not occur, so that the main power lines 42 and 42 'and the auxiliary power supply are applied so that powers of different polarities can be applied between power lines adjacent to each other. When the lines 43 and 43 'are respectively connected to the power source of the positive electrode or the negative electrode, the heating element 40 is evenly and stably generated from the applied power source.

In addition, when the heating element is to be made according to a specific voltage, the length of the conductive twisted yarn 47 is adjusted according to the voltage to be used to adjust the installation interval of the auxiliary power lines 43 and 43 'installed therein. . That is, in order to make a low voltage heating element, a plurality of auxiliary power lines 43 and 43 'are provided for the conductive twisted yarn 47 in consideration of the fact that the voltage drop occurs at a small resistance value due to the low supply voltage. By narrowing the gap and applying the voltage to be used, it is necessary to create an optimum gap of the power supply line that generates the best heat without destroying the insulation.

On the other hand, in order to make a high voltage heating element, the spacing of the auxiliary power lines 43 and 43 'with respect to the entire length of the conductive twisted yarn 47 may be arranged. At this time, the spacing of the auxiliary power lines 43, 43 'is to be made wider to the maximum distance that the voltage drop does not occur.

The infant car seat of the present invention is configured by dividing the heating pad 30 formed in the infant car seat 10 with respect to the total area of the seat cover 16 by at least two or more, respectively, as shown in FIG. 17. As the heating pads 30 of the heating pads 30 are separately connected by the controllers 20, the power consumption of the rechargeable power supply unit 26 can be greatly reduced through separate control of each of the heating pads 30. It is.

That is, when the seat cover 16 of the infant car seat 10 having the respective heating pads 30 divided as described above is used for the first time, power is supplied to all the heating pads 30 arranged as above. After the heat generation is performed simultaneously for a predetermined time in a state in which the state is set, the power is cut off for all the heating pads 30 at the same time when the power supply is applied to each heating pad 30 individually or By blocking, the heating pads 30 sequentially connected to all the heating pads 30 or the heating pads 30 connected in the form of a specified object or set alternately sequentially perform the heating operation and the stopping operation.

Accordingly, since the initial heat is generated for the entire seat cover 16 of the infant car seat 10 by supplying power to the entire heating pad 30 at the time of initial use, rapid heat action is achieved, and only after the individually set time. Since only the individual heating pads 30 are sequentially flashed, the power consumption can be significantly reduced. At this time, as the heating pad 30 blinks as described above, a temperature drop may occur in a short-circuit state, but the heating pad in a state embedded in the seat cover 16 of the child car seat 10 as described above. 30 is warmed for a predetermined time due to the heat retaining properties of the seat cover 16 itself and the latent heat characteristics of the heating pad 30, even if the heating pad 30 is sequentially flashing as described above, the thermal effect is sufficient. You will get

Accordingly, when the power is applied to all of the heating pads 30 as described above, the power consumption of the rechargeable power supply unit 26 is large, so that the heating pads 30 may be used only for 3 to 4 hours. As the intermittent operation is sequentially performed, the usage time for the rechargeable power supply unit 26 is increased by two to three times or more. Therefore, more effective use can be made when a long time work or activity in the open air is required.

The embodiments described in the present specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, and various equivalents and modifications that may be substituted for them are provided. It should be understood that there may be examples.

1 is an overall configuration diagram of a child car seat formed with a heating pad according to the present invention

Figure 2 is an overall view of the seat cover of the child car seat according to the invention

Figure 3 is an enlarged cross-sectional view of the heating pad portion of the child car seat according to the present invention.

Figure 4 is an enlarged cross-sectional view showing another embodiment of the heating pad portion of the child car seat according to the present invention.

Figure 5 is another embodiment of the seat cover of the child car seat according to the invention

Figure 6 is another embodiment of the seat cover of the child car seat according to the invention

Figure 7 is a controller configuration and connection diagram of the heating pad according to the present invention

8 is another embodiment of the heating element of the heating pad according to the present invention;

9 is another embodiment of the heating element of the heating pad according to the present invention;

10 is a partially enlarged view of a heating element according to FIG. 9.

11 is a block diagram of an internal heating element of the heating pad according to the present invention;

12 is an enlarged view of a portion “A” of the heating mesh of FIG. 11;

13 is another configuration diagram of the internal heating element of the heating pad according to the present invention;

FIG. 14 is an enlarged view of a portion “A” of the elastic heating wire according to FIG. 13. FIG.

15 is another configuration diagram of the internal heating element of the heating pad according to the present invention;

FIG. 16 is an enlarged view of a portion “A” of the conductive twisted yarn of FIG. 15. FIG.

17 is a diagram illustrating a separate control connection for a heating pad divided according to the present invention

Explanation of symbols on the main parts of the drawings

10: car seat 11: the outer shell

12: endothelial 13: pocket

14: pocket 15: cushion member

16 seat cover 17 belt member

18: frame

20: controller 21: selection button

22: time setting section 23: temperature setting section

24: central processing unit 25: display unit

26: rechargeable power supply unit 27: AC adapter

30: heating pad 31: heat storage carrier

32: insulator 33: overheat cut off

40: heating element 41: conductive mesh

41a: core material 41b: conductive coating layer

41c: Insulation layer 42,42 ': Main power line

43,43 ': Auxiliary power cable 44: Flexible heating wire

44a: flexible core material 44b: conductive coil wire

44c: elastic insulation coating

45,45 ': Surface sheet 46: Adhesive sheet

47: conductive twisted yarn 47a: screening

47b: conductive layer 47c: insulating layer

Claims (22)

In the infant car seat 10 is coupled to the seat cover 16 and the belt member 17 on the frame 18, Forming a separate heating pad 30 in the seat cover 16 of the child car seat 10, wherein the heating pad 30 is connected to the controller 20 having a rechargeable power supply unit 26, the heat generation The heating pad by the flexible heating element, characterized in that the power supply of the rechargeable power supply unit 26 is supplied to the heating pad 30 by the operation of the controller 20 exposed from the seat cover 16 having the pad 30. Car seat having a. The method of claim 1, Seat cover 16, the outer shell 11 and the inner shell 12 is made of a sewing each other and the heating pad 30 is a flexible heating element, characterized in that configured to be embedded between the outer shell 11 and the inner shell 12 Infant car seat having a heating pad by. The method of claim 1, The seat cover 16 is made of a cushion member 15 is positioned between the outer shell 11 and the inner shell 12 and sewn together, and the heating pad 30 is formed of the inner shell 12 and the cushion member 15. Infant car seat having a heating pad by a flexible heating element, characterized in that it is built in between. The method of claim 1, The seat cover 16, the infant car seat having a heating pad by a flexible heating element, characterized in that configured to be stored in the pocket 14, the controller 20 to be exposed to the outside by forming a separate pocket 14 . The method of claim 1, The heating pad 30 is a child car seat having a heating pad by a flexible heating element, characterized in that configured to be inserted into a separate pocket 13 formed on the surface of the seat cover (16). The method of claim 5, The pocket 13 is formed to be divided into at least two or more with respect to the seat cover 16 of the child car seat 10, each of the pocket 13 is to be inserted into the heating pad 30 having a corresponding size, Each of the heating pads 30 are connected in parallel by a plug jack and a socket structure that can be separated and connected to each other, so that the heating pads 30 corresponding to unnecessary positions are cut off to reduce power consumption. Infant car seat having a heating pad by a flexible heating element characterized in that. The method of claim 1, The controller 20 has a time setting unit 22 and a temperature setting unit 23 which are variable by the selection button unit 21, and a central processing unit connected to the time setting unit 22 and the temperature setting unit 23. 24 has a set temperature and intermittent time to supply power to the heating pad 30, The display unit 25 connected to the central processing unit 24 allows the power to be applied, the set operating time, the set temperature, the remaining power, the voltage for the power source, and the state of charge. The rechargeable power supply unit 26 of the infant having a heating pad by the flexible heating element, characterized in that configured to be supplied to the heating pad 30 through the central processing unit 24 by charging the power supplied from the AC adapter 27 Car seat. The method of claim 1, The heating pad 30 is a child car seat having a heating pad by a flexible heating element, characterized in that the heating element 40 is built between the upper and lower surface sheets 45, 45 '. The method of claim 8, The surface sheets 45 and 45 'are fused to each other by inserting the adhesive sheet 46 between the surface sheets 45 and 45' and fusion of the adhesive sheet 46 by heat pressing. An infant car seat having a heating pad by a flexible heating element. The method of claim 8, Surface sheet 45 (45 ') is a child car seat having a heating pad by a flexible heating element, characterized in that consisting of one selected from neoprene (neoprene) or spandex (spandex). The method of claim 1, The heating pad 30 is a child car seat having a heating pad by a flexible heating element, characterized in that the heating element 40 is built between the upper heat storage transfer member 31 and the lower heat insulator 32. The method of claim 11, Thermal accumulator (31) is a child car seat having a heating pad by a flexible heating element, characterized in that formed by forming a cotton fabric paper in close contact with the upper surface of the Techno thermo fabric. The method of claim 11, Insulator 32, the infant car seat having a heating pad by a flexible heating element, characterized in that composed of fiber glass silica pad (fiber glass silica pad). The method of claim 1, The heating pad 30 has a heat generating body 40 embedded between the top and bottom surface sheets 45 and 45 ′, and a heat storage carrier 31 is formed on the top surface of the top surface sheet 45. Infant car seat having a heating pad by a flexible heating element, characterized in that the bottom surface of the lower surface sheet 45 'is formed by a heat insulator (32). The method according to any one of claims 8, 11, 14, The heating element 40 is equally disposed between the main power lines 42 and 42 'and the main power lines 42 and 42' which are arranged side by side at both ends of the conductive mesh 41 in a lattice form. Comprised of auxiliary power lines 43, 43 'arranged at intervals, the main power lines 42, 42' and the auxiliary power lines 43, 43 'are connected so that different polarities are sequentially applied alternately. Infant car seat having a heating pad by a flexible heating element, characterized in that configured. The method of claim 15, The conductive mesh 41 forms a coating layer 41b made of a conductive composition in which liquid silicon rubber and carbon black are mixed on the surface of the core material 41a in the form of a lattice, and an insulating layer (on the surface of the coating layer 41b). 41c) is an infant car seat having a heating pad by a flexible heating element, characterized in that formed. The method according to any one of claims 8, 11, 14, The heating element 40 is disposed between the main power lines 42 and 42 'and the main power lines 42 and 42' which are arranged in parallel with each other at both ends of the flexible heating line 44 which are arranged side by side. Is composed of auxiliary power lines 43, 43 'evenly arranged in connection with the flexible heating line 41, and alternately with the main power lines 42, 42' and the auxiliary power lines 43, 43 '. Infant car seat having a heating pad by a flexible heating element, characterized in that configured to connect so that different polarities are sequentially applied. The method of claim 17, The stretchable heating wire 44 winds and forms the conductive coil wire 44b on the surface of the stretchable core material 44a, and coats the stretchable insulating material 44c on the outer surface of the stretchable core material 44a and the conductive coil wire 44b. Infant car seat having a heating pad by a flexible heating element, characterized in that made by. The method according to any one of claims 8, 11, 14, The heating element 40 is formed by weaving the conductive twisted yarns 47 in a warp shape with the weft yarns, and on both sides of the woven conductive twisted yarns 47 side by side to connect the ends of the conductive twisted yarns 47 to each other. The auxiliary power supply line 43 disposed at equal intervals to form a contact with the conductive twisted yarn 47 between the main power supply lines 42 and 42 'and the main power supply lines 42 and 42'. (43 ') by the flexible heating element, characterized in that it is configured to connect different polarities sequentially applied to the main power line 42, 42' and the auxiliary power line (43, 43 ') in turn. Infant car seat with heating pad. The method of claim 19, The conductive twisted yarn 47 forms a conductive layer 47b made of a conductive composition in which liquid silicone rubber and carbon black are mixed on the surface of the screening 47a in which glass fibers are joined, and the surface of the conductive layer 47b. Infant car seat having a heating pad by a flexible heating element, characterized in that formed by forming an insulating layer (47c) of the liquid silicone rubber. The method according to any one of claims 8, 11, 14, The heating element 40, the infant car seat having a heating pad by a flexible heating element, characterized in that the bimetal overheating blocking portion 33 is mounted. The method of claim 1, The heating pad 30 is divided into separate shapes for the entire surface of the seat cover 16 of the child car seat 10, and each of the divided heating pads 30 is separately provided to the controller 20 described above. By being connected to each other, the use time due to the reduction of power consumption for the rechargeable power supply unit 26 of the controller 20 as the intermittent power supply to each of the heating pad 30 through the individual control of the controller 20 Infant car seat having a heating pad by a flexible heating element, characterized in that configured to extend.

Images