Fireproof mat

Abstract

The present disclosure provides a fireproof mat comprising: a base fabric 110 provided with a control device 140 for controlling the supply of DC power; a plurality of heating wires 120 coupled to the base fabric 110 and generating heat when power is applied; a plurality of conductive wires 250 configured to be in electrical contact with the heating wires 120; and an electrode portion 202 including a plurality of branched conductive wires 260 provided in the plurality of conductive wires 250, the branched conductive wires 260 being formed by dividing a copper wire forming the plurality of conductive wires 250 into a predetermined number of strands to branch the plurality of conductive wires 250 and connecting the branched conductive wires 250 to each other so as to be electrically connected.

Description

[Technical Field]

[0001] The present disclosure relates to a fire mat, and more particularly to a fire mat including a plurality of conductive wires, in which upper and lower conductive wire strands are split to form branched conductive wires in which the plurality of conductive wire strands branch off from each other, and the branched conductive wires formed at opposite positions among the branched conductive wires are connected to each other so that all of the plurality of conductive wires conduct electricity, thereby maximizing the contact area between the plurality of conductive wires and a heating wire, preventing poor contact with the heating wire, and preventing fire due to poor contact with the heating wire even if some of the conductive wire strands are damaged or broken. [Background technology]

[0002] Typical heating mats include heating mats that generate heat when powered and are used in a variety of applications, such as in sleep mattress applications or in vehicle seats.

[0003] Such heating mats include heating wires for generating heat, and many of the heating wires are made of copper (copper wire), which can cause problems such as short circuits due to continuous heat switching or hardening caused by copper oxidation, and can lead to problems such as poor contact with power lines and short circuits due to poor contact.

[0004] In particular, the series of copper wires used in prior art heating mats are woven into the fabric of the mat, such as a thin nonwoven fabric or similar sheet, causing abnormal overheating due to the accumulation or overlap of the heating wires.

[0005] For this reason, heating mats have been developed that include a heating wire made of carbon fiber and a copper wire that supplies power to the heating wire. However, in the case of carbon fiber heating wires using conventional technology, not only is it not possible to ensure sufficient heat generation due to the overheating limit of the carbon fiber, but there is also the problem that they are easily broken due to their weak tensile strength.

[0006] In addition, repeated use of the heating mat can cause the copper wire to separate from the mat's fabric, resulting in poor contact with the heating wire. This can then lead to a short circuit between the copper wire and the heating wire, and if the short circuit causes a fire, part or all of the mat can be damaged or broken, ultimately causing problems such as a serious reduction in product reliability and a lack of safety.

[0007] In addition, in conventional heating mats, if some of the copper conductive wire strands are damaged or broken due to long-term use or external forces such as impact, resistance will be concentrated in the remaining conductive wires, causing rapid localized heating and potentially causing burns to the user or a fire, which may result in reduced product reliability and serious safety issues.

[0008] In addition, conventional heating mats are difficult to wash using common washing methods such as washing with water or by hand, as some of the conductive wires may become damaged or broken, and they are also vulnerable to stress caused by repeated use.

[0009] If a conventional heating mat is damaged or disconnected due to a fire, additional costs are incurred for repairs and maintenance, resulting in increased operational costs. Summary of the Invention [Problem to be solved by the invention]

[0010] In order to address these problems, the present disclosure has been devised based on the above-mentioned background art, and provides a fireproof mat including a plurality of conductive wires, in which the conductive wire strands located at the upper and lower parts are divided to form branched conductive wires in which the plurality of conductive wire strands branch off from each other, and the branched conductive wires formed at opposite positions among the branched conductive wires are connected to each other so that all of the plurality of conductive wires are electrically connected, thereby maximizing the contact area between the plurality of conductive wires and the heating wire and preventing poor contact with the heating wire, and also preventing fires due to poor contact with the heating wire even if some of the conductive wire strands are damaged or broken.

[0011] In addition, the present disclosure provides a fireproof mat in which multiple conductive wires are all electrically connected via branched conductive wires so that stable and continuous power supply is possible even if only one strand of the branched conductive wire remains in contact with the heating wire, thereby preventing overheating due to concentration of resistance in conductive wires with poor contact and preventing the occurrence of fires.

[0012] Furthermore, the present disclosure provides a fire mat that can prevent oxidation of the conductive wire that supplies power to the heating wire by tinning the surface of the small diameter copper.

[0013] Furthermore, the present disclosure provides a fireproof mat in which a plurality of tin-plated conductive wires are connected to each other via branched conductive wires to form an integrated conductive wire, thereby imparting sufficient resistance to stress caused by repeated use and improving the woven fabric properties with the base fabric of the mat, thereby minimizing the product reject rate or damage or breakage of the conductive wires even when the mat is washed by common washing methods such as hand washing or washing in water. [Means for solving the problem]

[0014] According to one embodiment of the present disclosure, the fire mat includes a base fabric 110 provided with a control device 140 for controlling the supply of DC power, a plurality of heating wires 120 coupled to the base fabric 110 and generating heat when power is applied, a plurality of conductive wires 250 configured to be in electrical contact with the heating wires 120, and an electrode unit 202 including a plurality of branched conductive wires 260 provided on the plurality of conductive wires 250, which are formed by dividing and branching the copper wire forming the plurality of conductive wires 250 into a predetermined number of strands and electrically connecting the branched conductive wires 250 to each other.

[0015] According to one embodiment of the present disclosure, the electrode unit 202 includes a first electrode unit 210, which is composed of a plurality of conductive wires 250 and a plurality of branch conductive wires 260, and is provided in the central portion of the base fabric 110 and configured to contact the central portion of the heating wire 120; a second electrode unit 220, which is provided on one or both sides of the base fabric 110, or on the peripheral surface of the single-sided base fabric 110, and is configured to contact both ends of the heating wire 120; and a plurality of first insulating cover units 230, which are provided on the first electrode unit 210 at positions where the heating wire 120 and the plurality of conductive wires 250 contact each other, and which fix the first electrode unit 210 to the base fabric 110.

[0016] According to one embodiment of the present disclosure, the electrode portion 202 is composed of a plurality of conductive wires 250 and a plurality of branch conductive wires 260, and includes a second insulating cover portion 240 disposed between a plurality of first insulating cover portions 230 to provide insulation against current flowing through the first electrode portion 210.

[0017] According to one embodiment of the present disclosure, the plurality of conductive wires 250 comprises a plurality of tinned copper wires.

[0018] According to one embodiment of the present disclosure, each of the branch conductive lines 260 branches from each of the plurality of conductive lines 250 into a first branch conductive line 260a and a second branch conductive line 260b.

[0019] According to one embodiment of the present disclosure, the first insulating cover part 230 includes an electrode contact part 310 that allows the heating wire 120 and the plurality of conductive wires 250 to be in electrical contact with each other while being perpendicular to each other; first electrode cover parts 320 that are provided respectively above and below the electrode contact part 310 and that surround and cover the heating wire 120 and the plurality of conductive wires 250; branch conductive wire connection parts 330 that are provided respectively above and below the first electrode cover part 320 and that connect the plurality of branch conductive wires 260 formed on the plurality of conductive wires 250; and second electrode cover parts 340 that are provided respectively above and below the branch conductive wire connection parts 330 and that surround and cover the plurality of conductive wires 250 extending from the ends of the plurality of branch conductive wires 260.

[0020] According to one embodiment of the present disclosure, the second insulating cover portion 240 includes a first electrode cover portion 320 that covers the heating wire 120 and the plurality of conductive wires 250, and a second electrode cover portion 340 that is provided below the first electrode cover portion 320 and covers the plurality of conductive wires 250 extending from the ends of the plurality of branch conductive wires 260. [Effects of the Invention]

[0021] According to the embodiment of the present disclosure, the plurality of conductive wires are configured to be all electrically connected via the branch conductive wires, and therefore the contact area between the plurality of conductive wires and the heating wire is maximized, thereby preventing poor contact with the heating wire and preventing fires due to poor contact with the heating wire even if some of the conductive wire strands are damaged or broken.

[0022] In addition, according to the embodiments of the present disclosure, since the multiple conductive wires are all electrically connected via the branch conductive wires, stable and continuous power supply is possible even if only one wire of the branch conductive wire remains in contact with the heating wire. This prevents overheating due to resistance concentration in the conductive wire with poor contact, and thus prevents the occurrence of a fire.

[0023] Furthermore, according to embodiments of the present disclosure, the surface of the small diameter copper can be tin-plated to prevent oxidation of the conductive wire that supplies power to the heating wire.

[0024] Furthermore, according to the embodiment of the present disclosure, a plurality of tin-plated conductive wires are connected to each other via branched conductive wires to form an integrated conductive wire, which provides sufficient resistance to stress caused by repeated use and improves the weaving property with the base fabric of the mat, minimizing the reject rate of products and minimizing damage or breakage of the conductive wires even when washed by common washing methods such as hand washing or washing in water. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a schematic diagram of a fire mat according to one embodiment of the present disclosure. [Figure 2] 1 illustrates a portion of a fire mat according to one embodiment of the present disclosure. [Figure 3] FIG. 1 is an enlarged view of section "A" according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0027] As shown, the fire mat of the present disclosure includes a typical sleeping mat, an electric heating mat that is placed on a bed mattress to provide heat, or a heat generating (or heating) sheet that is placed on a car seat, and is composed of a mat portion 100 and a heating sheet portion 200.

[0028] The mat portion 100 is composed of a base fabric 110, which is made of ordinary fibers woven perpendicular to each other and to which the heating sheet portion 200 is combined, a plurality of heating wires 120, which are woven together with the base fabric 110 so as to be electrically connected to the heating sheet portion 200 and generate heat when power is applied, and a control device 140, which controls the application of power to the heating wires 120.

[0029] The base fabric 110 is configured to include a second electrode portion 220 provided along the circumferential surface of the heating sheet portion 200, and a finishing portion 112 formed to support the second electrode portion 220 and the heating wire 120 so that they can be electrically connected to each other.

[0030] In this case, the finishing portion 112 may be made of the same material as the base fabric 110, and may be configured so that the ends of the second electrode portion 220 and the heating wire 120 can be electrically connected to each other internally so that the ends of the second electrode portion 220 and the heating wire 120 are not exposed to the outside, but the present disclosure is not limited to this.

[0031] That is, the second electrode portion 220 may be configured to be joined to the upper surface of the finishing portion 112 by weaving, and when the second electrode portion 220 is joined, the heating wire 120 may also be configured to be joined by weaving.

[0032] In addition, an electrode finishing portion 130 is formed on the base fabric 110 in the finishing portion 112, preferably at the portion where the first electrode portion 210 and the second electrode portion 220 that constitute the heating sheet portion 200 are connected (or in contact) with each other, thereby joining the first electrode portion 210 and the second electrode portion 220 to the base fabric 110.

[0033] In this case, the electrode finishing portion 130 may correspond to the portion where the first electrode portion 210 and the second electrode portion 220 are joined to the finishing portion 112 by weaving.

[0034] The heating wire 120 is configured to be a plurality of parts arranged in parallel at a predetermined interval on the upper surface of the base fabric 110, and is configured so that both ends thereof are electrically connected to the first electrode portion 210 and the second electrode portion 220 formed on the heating sheet portion 200, and is configured to generate heat by the power applied to the first electrode portion 210 and the second electrode portion 220.

[0035] The heating wire 120 may be made of carbon fiber, but the present disclosure is not limited thereto, and the heating wire 120 may be configured in a form in which a pair of silver-plated threads are crossed and double-wrapped.

[0036] In this case, double wrapping means that a silver-plated thread is wound clockwise around the outer periphery of the heating wire 120 and another silver-plated thread is wound counterclockwise, thereby enveloping the outer periphery of the heating wire 120 while crossing each other.

[0037] The heating sheet unit 200 is configured to heat the heating wire 120 when a current applied by the control device 140 flows through the heating wire 120, and includes a first electrode unit 210 woven into the base fabric 110 and configured to be in contact with the heating wire 120, and configured to branch so that the contact portions with the heating wire 120 communicate with each other, and a second electrode unit 210 provided on one or both sides of the base fabric 110 or on the circumferential surface of the base fabric 110 so that both ends of the heating wire 120 come into contact with each other. The heating wire 120 is configured to have a second electrode portion 220, a first insulating cover portion 230 configured on the first electrode portion 210 at a position where it contacts the heating wire 120, fixes the first electrode portion 210 to the base fabric 110, and provides insulation against current flowing through the first electrode portion 210, and a second insulating cover portion 240 configured between the first insulating cover portions 230, fixes the first electrode portion 210 to the base fabric 110, and provides insulation against current flowing through the first electrode portion 210.

[0038] The first electrode portion 210 is joined to the base fabric 110 by weaving it into the central portion of the base fabric 110, and is configured to contact the central side of the heating wire 120, so that the heating wire 120 is heated by a current applied from the control device 140.

[0039] In this case, the present disclosure describes the first electrode portion 210 as being formed in the central portion of the base cloth 110, but the present disclosure is not limited to this, and depending on the size of the base cloth 110, i.e., the size or area of ​​the fire mat, the first electrode portion 210 may be formed on one side of the base cloth 110.

[0040] In this case, when the first electrode portion 210 is formed on one side of the base fabric 110, the second electrode portion 220 may be formed in a position opposite the first electrode portion 210 so that both ends of the heating wire 120 are in contact with the first electrode portion 210 and the second electrode portion 220, respectively.

[0041] The first electrode portion 210 is formed of copper wire (or copper thread) with a tin-plated surface, and is composed of a plurality of conductive wires 250 spaced at fine intervals, and a plurality of branched conductive wires 260 that are formed by dividing and branching the plurality of conductive wires 250 into a specific number of strands and connecting the branched plurality of conductive wires 250 together.

[0042] In this case, the conductive wire 250 may be formed of multiple tin-plated copper wires. By providing multiple conductive wires 250 each made of multiple copper wires, the contact area with the heating wire 120 can be increased, and poor contact with the heating wire 120 can be prevented.

[0043] For example, one of the plurality of conductive wires 250 of the present disclosure may be formed of 32 tin-plated copper wires, but the present disclosure is not limited thereto, and the number of copper wires forming one conductive wire 250 may vary depending on the size and area of ​​the fire mat.

[0044] The branched conductive wires 260 are formed on each of the plurality of conductive wires 250 at a position spaced a predetermined distance from the portion that contacts the heating wire 120. The branched conductive wires 260 are formed by dividing the copper wire that forms the plurality of conductive wires 250 into a predetermined number of strands and then connecting the branched copper wires together, thereby maintaining the electrical conductivity of all of the conductive wires 250. This maximizes the contact area between the plurality of conductive wires 250 and the heating wire 120, preventing poor contact with the heating wire 120 and preventing a fire from occurring due to poor contact with the heating wire 120 even if some or most of the copper wires that form the plurality of conductive wires 250 are damaged or broken.

[0045] The branched conductive wires 260 are configured so that when connecting a plurality of conductive wires 250, the branched conductive wires 260 formed at opposing positions are connected to each other.

[0046] That is, as shown in FIG. 3, the branch conductive wire 260 branches from the conductive wire 250 into a first branch conductive wire 260a and a second branch conductive wire 260b, and when connecting the first conductive wire 250a and the second conductive wire 250b among the multiple conductive wires 250 branched into the first branch conductive wire 260a and the second branch conductive wire 260b, the second branch conductive wire 260b formed on the first conductive wire 250a and the first branch conductive wire 260a formed on the second conductive wire 250b are connected.

[0047] On the other hand, when one conductive wire 250 is composed of 32 tin-plated copper wires as in the above example, the branch conductive wire 260 of the present disclosure may be formed as a first branch conductive wire 260a and a second branch conductive wire 260b each composed of 16 copper wires, but the present disclosure is not limited thereto.

[0048] With this configuration, the present disclosure allows the plurality of conductive wires 250 to maintain a state in which they are connected to one another by the branch conductive wires 260, and the plurality of conductive wires 250 connected by the branch conductive wires 260 are configured to be integrated with one another. Therefore, even if many of the copper wires forming the conductive wires 250 are broken and cause poor contact with the heating wire 120, the flow of current applied via the other copper wires that maintain stable contact with the heating wire 120 can be maintained.

[0049] In other words, the present disclosure solves the problem of the prior art in that, because multiple conductive wires 250 are independently constructed and woven into the base fabric 110, some of the copper wires forming the conductive wires 250 may break, resulting in poor contact with the heating wire 120, and if only a few copper wires come into contact with the heating wire 120, resistance may be concentrated in those few copper wires, leading to overheating, transfer of resistance to the broken copper wires, and the occurrence of a fire.

[0050] On the other hand, the second electrode portion 220 of the present disclosure is formed in the finishing portion 112 of the base fabric 110 and is configured so that both ends of the heating wire 120 can come into contact with each other, and is configured to have a shape similar to that of the first electrode portion 210 described above.

[0051] That is, the second electrode portion 220 is also formed of copper wire (or copper thread) with a tin-plated surface, and includes a plurality of conductive wires 250 spaced at fine intervals, and a plurality of branched conductive wires 260 that are formed by dividing and branching the plurality of conductive wires 250 into a specific number of strands and connecting the branched plurality of conductive wires 250 together.

[0052] The first insulating cover portion 230 is a component provided on the electrode portion 202 including the first electrode portion 210 or the first electrode portion 210 and the second electrode portion 220, and supports electrical contact between the heating wire 120 and the plurality of conductive wires 250, and provides insulation for the electrode portion 202 by surrounding and covering the plurality of conductive wires 250, while surrounding and covering the connection portions of the branch conductive wires 260 formed on each of the plurality of conductive wires 250 to ensure bonding to the base fabric 110.

[0053] The first insulating cover portion 230 may be configured in a plurality of sections spaced apart at predetermined intervals along the electrode portion 202 and configured to intersect at right angles with the heating wires 120 arranged in parallel on the base fabric 110 .

[0054] As shown in FIGS. 2 and 3 , the first insulating cover part 230 includes an electrode contact part 310 that has a space so that the heating wire 120 can be arranged perpendicular to the plurality of conductive wires 250, and that allows electrical contact between the heating wire 120 and the plurality of conductive wires 250; first electrode cover parts 320 that are provided respectively above and below the electrode contact part 310 and that cover the plurality of conductive wires 250 that are in electrical contact with the heating wire 120 and fix them to the base fabric 110; and branch conductive wire connection parts 330 that are provided respectively above and below the first electrode cover part 320 and that connect the plurality of branch conductive wires 260 formed on the plurality of conductive wires 250 so that the plurality of conductive wires 250 can be integrated with each other.

[0055] In addition, the first insulating cover portion 230 may further include a second electrode cover portion 340 that is provided on the upper and lower sides of the branch conductive wire connection portion 330, covers the multiple conductive wires 250 extending from the ends of the branch conductive wires 260, fixes the multiple conductive wires 250 to the base fabric 110, and provides insulation against current flowing through the multiple conductive wires 250.

[0056] Furthermore, the first insulating cover portion 230 of the present disclosure may be formed from a blended yarn that is a mixture of carbon fiber yarn and elastic yarn such as spandex yarn or highly elastic urethane yarn, and may be configured to wrap around the electrode portion 202, with both ends thereof woven onto the base fabric 110.

[0057] The first insulating cover portion 230 of the present disclosure configured in this manner makes contact between the base fabric 110 and the heating wire 120 easier and better, and also maximizes electrode contact with the electrode portion 202, thereby maintaining a stable electrical connection.

[0058] In addition, structural stability can be provided between the electrode portion 202 and the base fabric 110, which makes the fire mat resistant to stress caused by repeated loads caused by repeated use, and minimizes damage or breakage of the conductive wires even when the mat is washed using common washing methods such as hand washing or washing with water.

[0059] The second insulating cover portion 240 is provided between the plurality of first insulating cover portions 230, and covers the electrode portion 202 including the first electrode portion 210 and the second electrode portion 220 composed of the plurality of conductive wires 250 and branch conductive wires 260 arranged between the first insulating cover portions 230, and serves to fix the electrode portion 202 to the base fabric 110 and to insulate the electrode portion 202 from the current flowing through it.

[0060] The second insulating cover portion 240 may include a first electrode cover portion 320 and a second electrode cover portion 340 provided on the first insulating cover portion 230 .

[0061] That is, the second insulating cover part 240 includes a first electrode cover part 320 that surrounds and covers the heating wire 120 and the plurality of conductive wires 250, and a second electrode cover part 340 that is provided below the first electrode cover part 320 and surrounds and covers the plurality of conductive wires 250 extending from the ends of the plurality of branch conductive wires 260.

[0062] The above description is merely an exemplary description of the technical concept of the present disclosure, and various changes and modifications may be made by those skilled in the art to which the present disclosure pertains without departing from the essential features of the present disclosure. Therefore, the embodiments disclosed in the present disclosure are not intended to limit the technical concept of the present disclosure, but merely illustrate the technical concept, and the scope of the technical concept of the present disclosure is not limited by these embodiments. The scope of protection of the present disclosure should be interpreted by the scope of the appended claims, and all technical concepts within the scope equivalent to the scope of the appended claims should be interpreted as being included in the scope of the present disclosure. [Explanation of symbols]

[0063] 100 Mat section 110 Base fabric 112 Finishing Section 120 heating wire 130 Electrode finishing section 140 Control device 200 Heating sheet section 210 first electrode portion 220 Second electrode part 230 First insulating cover part 240 Second insulating cover part 250 Conductive Wire 260 Branch Conductor Wire 310 Electrode contact part 320 first electrode cover part 330 Branched conductive wire connection 340 second electrode cover part

Claims

1. A fire mat, a base fabric (110) provided with a control device (140) for controlling the supply of DC power; a plurality of heating wires (120) coupled to the base fabric (110) and generating heat when power is applied; an electrode portion (202) including a plurality of conductive wires (250) configured to be in electrical contact with the heating wire (120), and a plurality of branched conductive wires (260) provided on the plurality of conductive wires (250), which are formed by dividing a copper wire forming the plurality of conductive wires (250) into a predetermined number of strands and branching the plurality of branched conductive wires (250) to electrically connect the branched conductive wires (250) to each other; A fire mat is provided.

2. The electrode portion (202) is a first electrode portion (210) that is configured by the plurality of conductive wires (250) and the plurality of branched conductive wires (260), that is provided in a central portion of the base fabric (110), and that is configured to contact the central portion of the heating wire (120); a second electrode portion (220) provided on one or both sides of the base fabric (110) or on the circumferential surface of the base fabric (110) and configured to contact both ends of the heating wire (120); a plurality of first insulating cover portions (230) provided on the first electrode portion (210) at positions where the heating wire (120) and the plurality of conductive wires (250) contact each other, and fixing the first electrode portion (210) to the base fabric (110); a second insulating cover portion (240) provided between the plurality of first insulating cover portions (230) and providing insulation against current flowing through the first electrode portion (210); 10. The fire mat of claim 1, comprising:

3. 3. The fire mat of claim 2, wherein the plurality of conductive wires (250) comprises a plurality of tinned copper wires.

4. 3. The fire mat of claim 2, wherein each of the branched conductive lines (260) branches off from each of the plurality of conductive lines (250) into a first branched conductive line (260a) and a second branched conductive line (260b).

5. The first insulating cover portion (230) an electrode contact portion (310) that allows the heating wire (120) and the plurality of conductive wires (250) to be in electrical contact with each other while being perpendicular to each other; a first electrode cover portion (320) provided on each of the upper and lower sides of the electrode contact portion (310) and surrounding and covering the heating wire (120) and the plurality of conductive wires (250); branched conductive wire connection portions (330) provided on the upper and lower sides of the first electrode cover portion (320), respectively, for connecting the branched conductive wires (260) formed on the plurality of conductive wires (250); a second electrode cover portion (340) provided on each of the upper and lower sides of the branched conductive wire connection portion (330) and surrounding and covering the plurality of conductive wires (250) extending from the ends of the plurality of branched conductive wires (260); 3. The fire mat of claim 2, comprising:

6. The second insulating cover portion (240) a first electrode cover portion (320) that covers the heating wire (120) and the plurality of conductive wires (250); a second electrode cover portion (340) provided below the first electrode cover portion (320) and covering the plurality of conductive wires (250) extending from the ends of the plurality of branched conductive wires (260); 3. The fire mat of claim 2, comprising:

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