Mat unit and hot water mat including same

Abstract

A mat unit for a hot water mat according to an embodiment of the present invention may comprise: a first pad; a second pad detachably coupled to the first pad; and a heating pad disposed between the first pad and the second pad, wherein the heating pad includes: a first sheet; a second sheet disposed under the first sheet; and a hot water pipe disposed between the first sheet and the second sheet and having at least a portion extending to the outside, the heating pad is provided with a plurality of bonding portions at each of which at least a portion of the first sheet and at least a portion of the second sheet are bonded to each other, and the hot water pipe extends to be partially inserted into a plurality of hot water pipe receiving portions formed between the plurality of bonding portions.

Description

Mattress part and hot water mat including the same

[0001] Cross-citation with related applications

[0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2024-0200614 filed on December 30, 2024, and all contents disclosed in the document of said Korean Patent Application are incorporated herein as part of this specification.

[0003] Technology field

[0004] The present invention relates to a mat portion and a hot water mat including the same.

[0005] A hot water mat refers to a heating mat that provides heating by circulating hot water, heated to a set temperature in a boiler, along a path provided in the mat.

[0006] Generally, a hot water mat can be constructed by laminating materials such as various fabrics to function as a mat and inserting pipes through which hot water can flow between the laminated materials. Since grooves must be created for the pipes, this type of hot water mat has limitations in that the spacing between the hot water pipes is not dense enough, making it difficult to achieve even heating.

[0007] Additionally, the mattress section can be manufactured by forming a flow path through the contact and joining of laminated materials in the form of pipes, without the need for separate pipe insertion. In this type of hot water mattress, the laminated materials repeatedly expand and contract as the size of the flow path changes as hot water flows in and out. As this repeated expansion and contraction occurs, parts of the material weakened by fatigue may break, potentially damaging the flow path. Depending on the damage to the flow path, hot water flowing through it may leak to the outside of the mattress. Unexpected leakage can lead to problems such as flooding the floor or bed on which the mattress rests, or wetting the electronic control devices of the mattress.

[0008] The present invention aims to solve the above-mentioned problems by providing a mat portion that maintains a comfortable fit and minimizes the risk of hot water leakage while having even heating performance with hot water flowing at close intervals, and a hot water mat including the same.

[0009] A mat portion for a hot water mat according to one embodiment of the present invention comprises: a first pad; a second pad detachably coupled to the first pad; and a heating pad disposed between the first pad and the second pad; wherein the heating pad comprises: a first sheet; a second sheet disposed below the first sheet; and a hot water pipe disposed between the first sheet and the second sheet and having at least a portion extending outward; wherein the heating pad is provided with a plurality of joint portions in which at least a portion of the first sheet and the second sheet are joined to each other, and the hot water pipe may be extended to be partially inserted into a plurality of hot water pipe receiving portions formed between the plurality of joint portions.

[0010] In one embodiment, the first pad and the second pad may be provided such that their edge portions are joined by a double zipper structure.

[0011] In one embodiment, the first pad includes a first tooth portion, and the second pad includes a second tooth portion provided to engage with the first tooth portion, and the first pad and the second pad may be provided with a zipper handle that is slidably coupled along the first tooth portion and the second tooth portion.

[0012] In one embodiment, the first pad and the second pad are provided such that an opening is formed on one side while they are coupled to each other, and at least a portion of the hot water pipe may extend to the outside of the first pad and the second pad through the opening.

[0013] In one embodiment, the heating pad may be detachably coupled to at least one of the first pad and the second pad through a fastening means.

[0014] In one embodiment, the fastening means may include Velcro or a fastening strap.

[0015] In one embodiment, the plurality of joints may be formed by fusing or sewing together a portion of the facing first sheet and the second sheet.

[0016] In one embodiment, the plurality of joints are extended to have a predetermined length along a first direction and are spaced apart at predetermined intervals along a second direction perpendicular to the first direction, and the hot water pipe may be extended while partially bent so as to be inserted into the plurality of hot water pipe receiving portions provided between the plurality of joints adjacent to each other.

[0017] In one embodiment, the hot water pipe includes an inner pipe located inside between the first sheet and the second sheet, a first outer pipe extending outward from one end of the inner pipe, and a second outer pipe extending outward from the other end of the inner pipe, and the first outer pipe and the second outer pipe may be coupled with a connector.

[0018] In one embodiment, a portion of the inner tube is supported by the plurality of joints, and the remaining portion of the inner tube may be partially supported by a fixing band provided between the first sheet and the second sheet.

[0019] In one embodiment, either of the first outer pipe and the second outer pipe is a supply pipe for supplying water from the outside to the hot water pipe, and either of the first outer pipe and the second outer pipe may be a return pipe for recovering water from the hot water pipe to the outside.

[0020] In one embodiment, the first sheet and the second sheet may include a waterproof material.

[0021] In one embodiment, the first pad and the second pad may include a cushion layer.

[0022] A hot water mat according to one embodiment of the present invention comprises: a boiler unit for heating hot water; and a mat unit provided to receive hot water from the boiler unit and provide heating. The mat unit comprises: a first pad; a second pad detachably coupled to the first pad; and a heating pad disposed between the first pad and the second pad. The heating pad comprises: a first sheet; a second sheet disposed below the first sheet; and a hot water pipe disposed between the first sheet and the second sheet and extending so that at least a portion is connected to the boiler unit. The heating pad is provided with a plurality of joints in which at least a portion of the first sheet and the second sheet are joined to each other, and the hot water pipe may be extended so as to be partially inserted into a plurality of hot water pipe receiving portions formed between the plurality of joints.

[0023] According to the present invention, hot water can flow at close intervals while maintaining a comfortable fit and minimizing the risk of hot water leakage, thereby providing even heating performance.

[0024] FIG. 1 is a perspective view of a hot water mat according to one embodiment of the present invention.

[0025] FIG. 2 is an exploded perspective view of the mat portion of a hot water mat according to one embodiment of the present invention.

[0026] FIG. 3 is a drawing showing the side view of a part of the mat portion of a hot water mat according to one embodiment of the present invention.

[0027] FIG. 4 is a schematic cross-section of the mat portion of a hot water mat according to one embodiment of the present invention.

[0028] FIG. 5 is a drawing illustrating a heating pad of a hot water mat according to one embodiment of the present invention.

[0029] FIG. 6 is a schematic diagram illustrating a cross-section of a heating pad of a hot water mat according to one embodiment of the present invention.

[0030] FIG. 7 is a drawing illustrating a modified example of a heating pad according to one embodiment of the present invention.

[0031] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted.

[0032] In this specification, the width direction and the length direction are referred to for convenience of explanation and may be directions orthogonal to each other. In this specification, the up-down direction and the left-right direction are referred to for convenience of explanation and may be directions orthogonal to each other. However, these directions may be understood as being determined relatively according to the shape and arrangement direction of the components of the hot water mat.

[0033] Additionally, terms including ordinal numbers, such as "first," "second," etc., used herein may be used to describe various components, but said components are not limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any one of a plurality of related described items.

[0034]

[0035] FIG. 1 is a perspective view of a hot water mat according to one embodiment of the present invention.

[0036] Referring to FIG. 1, a hot water mat (1) according to one embodiment may include a mat portion (10) having hot water pipes (330) inside and outside, and a boiler portion (20) connected to the mat portion (10) and providing hot water to the hot water pipes (330) of the mat portion (10).

[0037] The mat section (10) may be formed externally by a first pad (100) and a second pad (200) combined with the first pad (100), and a hot water pipe (330) may be provided between the first pad (100) and the second pad (200). The hot water pipe (330) may extend outwardly between the first pad (100) and the second pad (200) and be connected to the boiler section (20) through a connector (340). The configuration of the mat section (10) will be explained in detail below with reference to FIGS. 2 to 6.

[0038] The boiler unit (20) may be configured to heat water stored inside to a predetermined temperature and provide the heated hot water to the mat unit (10). Although not illustrated, the boiler unit (20) may be equipped with a tank for storing water, a heater for heating water, a temperature sensor for measuring the temperature of water, a pump for circulating water by pressurizing water from the tank to the mat unit (10), and a control unit for performing various controls.

[0039] Additionally, the boiler unit (20) may be provided with an inlet formed in the tank cover to replenish water to the tank, a display showing the control status of the hot water mat (1), a control means for controlling the control status of the hot water mat (1), and a cord for connecting the control unit to a power source. After supplying water to the tank through the inlet, the user can set a desired control status by operating the control means.

[0040] A heater may be provided to heat water contained in a tank. For example, the heater may be a sheath heater. Accordingly, the heater may be formed in a shape in which a metallic pipe surrounds a heating wire that generates heat when an electric current flows. Electrical insulating powder may be densely filled between this pipe and the heating wire. However, the type of heater is not particularly limited and may be a type of heater other than a sheath heater. When an electric current flows through the heater and the heater generates heat due to the flowing current, the emitted heat is transferred to the water surrounding the heater, thereby heating the water. Therefore, the operation of the heater can be controlled by adjusting the current flowing through the heater with a control unit electrically connected to the heater.

[0041]

[0042] FIG. 2 is an exploded perspective view of the mat portion of a hot water mat according to one embodiment of the present invention. FIG. 3 is a side view of a part of the mat portion of a hot water mat according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of the mat portion of a hot water mat according to one embodiment of the present invention.

[0043] FIG. 2 illustrates the disassembled state of the mat portion (10) shown in FIG. 1. FIG. 3 illustrates the side view of the portion where the hot water pipe (330) extends outward from the mat portion (10) shown in FIG. 1. FIG. 4 schematically illustrates a cross-section showing the laminated structure of the mat portion (10) shown in FIG. 1.

[0044] Referring to FIGS. 2 to 4, a mat portion (10) of a hot water mat (1) according to one embodiment (e.g., a mat portion (10) for a hot water mat) may include a first pad (100), a second pad (200) detachably coupled to the first pad (100), and a heating pad (300) disposed between the first pad (100) and the second pad (200) and equipped with a hot water pipe (330).

[0045] The first pad (100) and the second pad (200) can form the main exterior of the mat portion (10). The first pad (100) and the second pad (200) may include a cushion layer to maintain a sense of comfort when a user lies down. For example, the first pad (100) and the second pad (200) may be composed of a plurality of layers including at least one of a cushion layer, a waterproof layer, and a finishing layer. Meanwhile, the laminated structure and material of the first pad (100) and the second pad (200) are not particularly limited.

[0046] The first pad (100) and the second pad (200) can be detachably connected through a zipper structure (C1). The first pad (100) may include a first toothed portion (110) extending along the edge, and the second pad (200) may include a second toothed portion (210) extending along the edge so as to be engaged with the first toothed portion (110), and two zipper handles (120) may be slidably connected to the first toothed portion (110) and the second toothed portion (210). The zipper handles (120) may be provided to move along the first toothed portion (110) and the second toothed portion (210) to connect or separate them. For example, the zipper structure (C1) can be implemented with a first toothed portion (110), a second toothed portion (210), and two zipper handles (120) provided on the first pad (100) and the second pad (200), and may correspond to a double zipper (or 2-WAY zipper) structure. Since the zipper structure (C1) is a known technology, a detailed description thereof is omitted.

[0047] The first pad (100) and the second pad (200) may be provided such that an opening (11) is formed on one side when they are joined together. For example, as shown in FIG. 3, the mat portion (10) may have an opening (11) formed in a lateral section between the first pad (100) and the second pad (200) when the toothed portions (110, 210) of the first pad (100) and the second pad (200) are joined together. Accordingly, a portion of the hot water pipe (330) in the internal space between the first pad (100) and the second pad (200) may be extended outward. That is, the zipper structure (C1) may be provided in a form such that an opening (11) can be formed when the first pad (100) and the second pad (200) are joined together. Meanwhile, the location of the opening (11) is not particularly limited and may be formed at various locations.

[0048] At least one of the first pad (100) and the second pad (200) may be provided to be coupled to the heating pad (300) through a fastening means (C2) to restrain or limit the movement of the heating pad (300) placed between them. The fastening means (C2) can prevent or limit the heating pad (300) from being pushed or moving significantly within the first pad (100) and the second pad (200) when the mat portion (10) is used by coupling the heating pad (300) to the first pad (100) or the second pad (200) with a predetermined restraining force.

[0049] The fastening means (C2) may include a fixing strap or Velcro (or a touch fastener). The fastening means (C2) may provide a predetermined restraining force by being provided on at least one of the first pad (100) and the second pad (200) and on the heating pad (300) respectively and being mutually coupled. For example, a strap may be provided on the second pad (200) and a hole for fastening the strap may be provided on the heating pad (300). However, the type of fastening means (C2) is not particularly limited and may be implemented through various means within a range where separation is possible while providing a predetermined restraining force upon coupling. For example, the heating pad (300) may be detachably coupled to the first pad (100) or the second pad (200) using a zipper or a snap button.

[0050] The fastening means (C2) may be provided so that the heating pad (300) is fastened to both the first pad (100) and the second pad (200), but depending on the embodiment, the heating pad (300) may be provided so that it is fastened to only one of the first pad (100) and the second pad (200). For example, the first pad (100) may be classified as an upper pad and the second pad (200) as a lower pad, and the fastening means (C2) may be provided to fasten the heating pad (300) to the second pad (200) located at the bottom. Additionally, a plurality of silicone pads (not shown) for anti-slip purposes may be disposed on the bottom surface of the second pad (200), which is the lower pad.

[0051] As the first pad (100) and the second pad (200) are joined by a zipper structure (C1), the heating pad (300) placed inside can be removed and separated. Accordingly, it can be washed separately.

[0052] A heating pad (300) may be placed between the first pad (100) and the second pad (200). For example, the heating pad (300) may be placed in the internal space between the first pad (100) and the second pad (200) formed as they are combined.

[0053] The heating pad (300) may be equipped with a hot water pipe (330) for circulating water supplied from a boiler unit (e.g., the boiler unit (20) of FIG. 1) (specifically, a tank) inside. For example, water stored in the tank may be pumped into the hot water pipe (330) by a pump, and the pumped water may circulate along the hot water pipe (330) and then be returned to the tank. At this time, a heater may heat the water stored in the tank or the circulating water to control the temperature of the water.

[0054] The heating pad (300) may include a first sheet (310), a second sheet (320) partially coupled to the first sheet (310), a hot water pipe (330) disposed between the first sheet (310) and the second sheet (320), and a connector (340) coupled to the hot water pipe (330) and connecting the hot water pipe (330) to the boiler unit (20).

[0055] The first sheet (310) and the second sheet (320) may include a waterproof material. The first sheet (310) and the second sheet (320) may be formed of a waterproof material so that even if a leak occurs in the internal hot water pipe (330), it does not flow out to the outside of the heating pad (300). The first sheet (310) and the second sheet (320) may be partially joined (or fused) to form a space between the first sheet (310) and the second sheet (320) where the hot water pipe (330) can be placed.

[0056] The hot water pipe (330) may be extended with partial bending so as to overlap overall in the area where the first sheet (310) and the second sheet (320) face each other in order to transfer heat to the first pad (100) and the second pad (200) overall. For example, the hot water pipe (330) may be formed of a flexible material that allows hot water to flow without leakage and can be partially bent. The hot water pipe (330) may be formed of a PVC (PolyVinyl Chloride) material (i.e., a PVC hose), but is not limited thereto.

[0057] The specific configuration of the heating pad (300) will be explained in detail below with reference to FIGS. 5 and FIGS. 6.

[0058]

[0059] FIG. 5 is a drawing illustrating a heating pad of a hot water mat according to one embodiment of the present invention. FIG. 6 is a drawing illustrating a cross-section of a heating pad of a hot water mat according to one embodiment of the present invention.

[0060] FIG. 5 is a drawing of the heating pad (300) shown in FIG. 2 viewed from above the first sheet (310), with the internal hot water pipe (330) indicated by a dotted line. FIG. 6 is a schematic drawing of the AA' cross-section of the heating pad (300) shown in FIG. 5.

[0061] Referring to FIGS. 5 and 6, a heating pad (300) of a mat portion (10) according to one embodiment may include a first sheet (310), a second sheet (320), a hot water pipe (330), and a connector (340). Since the heating pad (300) of FIGS. 5 and 6 is substantially the same as the heating pad (300) shown in FIGS. 2 to 4, redundant descriptions below will be omitted.

[0062] The edge portions of the first sheet (310) and the second sheet (320) can be joined by fusion and / or sewing. The first sheet (310) and the second sheet (320) can be joined excluding a portion of the edge portion so that at least a part of the hot water pipe (330) can extend outward.

[0063] The heating pad (300) may have multiple joints (350) formed by partially joining the first sheet (310) and the second sheet (320) so that a hot water pipe (330) can be laid by extending it in a winding manner between the first sheet (310) and the second sheet (320). That is, the first sheet (310) and the second sheet (320) are joined to each other at the edge portions and the multiple joints (350), and the remaining portions between them are not joined to each other and are spaced apart, thereby enabling the laying of the hot water pipe (330).

[0064] The heating pad (300) forms a plurality of joints (350) by joining a portion of the first sheet (310) and the second sheet (320), thereby providing a hot water pipe receiving portion (360), so that the hot water pipes (330) can be arranged at relatively close intervals. Accordingly, even heating performance can be provided over the entire area of ​​the heating pad (300).

[0065] A plurality of joints (350) may be extended to a predetermined length along the length direction (L) of the heating pad (300) (particularly, the first sheet (310) or the second sheet (320)) and may be spaced apart at predetermined intervals along the width direction (W) perpendicular to the length direction (L).

[0066] A plurality of joints (350) can support the hot water pipe (330) so that the hot water pipe (330) is positioned at a predetermined location. That is, the hot water pipe (330) can be maintained in a state where it does not deviate significantly from a predetermined location by means of the plurality of joints (350).

[0067] A hot water pipe receiving section (360) may be formed between multiple joints (350) through which a hot water pipe (330) can be inserted and extended. For example, the hot water pipe receiving section (360) may be a predetermined space formed by joining a portion of the lower surface of a first sheet (310) and a portion of the upper surface of a second sheet (320) facing each other. The hot water pipe receiving section (360) may be formed to be equal to or larger than the outer diameter of the hot water pipe (330) so that the hot water pipe (330) can pass through, and may be extended along the longitudinal direction (L). That is, the hot water pipe receiving section (360) is formed by adjacent joints (350), and the length of the hot water pipe receiving section (360) extended in the longitudinal direction (L) is equal to the length of the multiple joints (350).

[0068] Meanwhile, according to the form illustrated in FIG. 5, the hot water pipe (330) extends in a zigzag shape along the width direction (W) (i.e., the curved part of the hot water pipe (330) faces the length direction (L)), and correspondingly, a plurality of joints (350) are arranged along the width direction (W). However, this is an example, and the arrangement of the hot water pipe (330) and the plurality of joints (350) is not limited to the illustrated form, and according to various embodiments, when the hot water pipe (330) extends in a zigzag shape along the length direction (L) (i.e., the curved part of the hot water pipe (330) faces the width direction (W)), a plurality of joints (350) may be arranged along the length direction (L).

[0069] Additionally, according to the form illustrated in FIG. 6, the hot water pipe (330) is placed inside the hot water pipe receiving portion (360) and is spaced apart from the first sheet (310) and the second sheet (320) (i.e., the inner diameter of the hot water pipe receiving portion (360) is formed to be larger than the outer diameter of the hot water pipe (330), but this is exemplary and the heating pad (300) is not limited to the illustrated form. According to various embodiments, the heating pad (300) may be formed such that the inner diameter of the hot water pipe receiving portion (360) and the outer diameter of the hot water pipe (330) are substantially the same, so that the first sheet (310) and the second sheet (320) contact the outer surface of the hot water pipe (330) and support the hot water pipe (330).

[0070] A plurality of joints (350) may be formed by fusing a portion of the facing areas of the first sheet (310) and the second sheet (320) together. For example, while the first sheet (310) and the second sheet (320) are in contact with each other, a plurality of joints (350) may be formed by fusing and joining some points of the first sheet (310) and the second sheet (320) using a high-frequency welding machine. However, the plurality of joints (350) may be formed by sewing (or stitching) rather than welding. For example, the plurality of joints (350) may be referred to as a plurality of welding lines or sewing lines.

[0071] The hot water pipe (330) may include an inner pipe (331) located inside between the first sheet (310) and the second sheet (320), a first outer pipe (332) extending outward from one end of the inner pipe (331), and a second outer pipe (333) extending outward from the other end of the inner pipe (331).

[0072] Either of the first outer pipe (332) and the second outer pipe (333) is a supply pipe for supplying water stored in the boiler unit (e.g., the boiler unit (20) of FIG. 1) to the hot water pipe (330), and the other may be a return pipe (or return pipe) for recovering water from the hot water pipe (330) to the boiler unit (20). The first outer pipe (332) and the second outer pipe (333) may extend outside the sheet (310, 320) and be connected to a connector (340). That is, the first outer pipe (332) and the second outer pipe (333) are connected to the boiler unit (20) through the connector (340) so that water can be supplied to the inner pipe (331) or recovered to the boiler unit (20), thereby allowing water to circulate in the inner pipe (331).

[0073] Meanwhile, the inner pipe (331), the first outer pipe (332), and the second outer pipe (333) are designated separately according to their locations, and the hot water pipe (330) is not physically divided into the inner pipe (331), the first outer pipe (332), and the second outer pipe (333). For example, the inner pipe (331) refers to a section (or part) located inside the hot water pipe (330), and the outer pipes (332, 333) refer to a section (or part) located outside the hot water pipe (330).

[0074] The heating pad (300) may be provided with a fixing band (370) to fix a part of the inner tube (331) connected to the first outer tube (332) or the second outer tube (333). The fixing band (370) may be provided on at least one of the first sheet (310) and the second sheet (320) and may be located between the first sheet (310) and the second sheet (320).

[0075] The fixing band (370) can fix a portion (331a) connecting the portion of the inner pipe (331) installed in the hot water pipe receiving portion (360) (i.e., the portion supported by a plurality of joints (350)) and at least one of the first outer pipe (332) and the second outer pipe (333), thereby allowing each portion of the hot water pipe (330) to be arranged without mutual interference. That is, the fixing band (370) may be intended to fix a portion of the inner pipe (331) that is not placed in the hot water pipe receiving portion (360) to prevent interference or collision with the portion placed in the hot water pipe receiving portion (360).

[0076] According to the embodiment illustrated in FIG. 5, an inner tube (331) extending from a first outer tube (332) can be laid directly in a hot water pipe receiving section (360) and arranged along the width direction (W) while extending in a zigzag shape, and a part of the inner tube (331) placed at the right end of the drawing can be connected to a second outer tube (333) through a connecting part (331a) that extends a predetermined length along the width direction (W). At this time, since the connecting part (331a) is not supported by the hot water pipe receiving section (360) or a plurality of joints (350), it can be supported by a fixing band (370), and thereby, the connecting part (331a) can be arranged so as not to overlap with a part of the inner tube (331) placed in the hot water pipe receiving section (360).

[0077] Meanwhile, the illustrated embodiment is exemplary, and the position and / or number of fixing bands (370) may be changed depending on the arrangement of the hot water pipe (330). For example, if the first outer pipe (332) and the second outer pipe (333) are located below the first sheet (310) and the second sheet (320) based on the drawing, the part connecting the inner pipe (331) laid in the hot water pipe receiving section (360) and the first outer pipe (332) may also be extended to a predetermined length, and a fixing band (370) for fixing it may be added. That is, the fixing band (370) may be provided in response to the need to fix a part of the inner pipe (331) that is not supported by a plurality of joints (350).

[0078]

[0079] FIG. 7 is a drawing illustrating a modified example of a heating pad according to one embodiment of the present invention.

[0080] FIG. 7 is a drawing illustrating a modified example of the heating pad (300) shown in FIG. 5. The heating pad (300') of FIG. 7 may be a modified form compared to the heating pad (300) of FIG. 5, in which the internally provided hot water pipes (330) include a first hot water pipe (330a) and a second hot water pipe (330b) that are separated from each other.

[0081] Below, content that overlaps with the previous explanation will be omitted, and the explanation will focus on the changed parts.

[0082] Referring to FIG. 7, a heating pad (300') according to one embodiment may have a hot water pipe (330) provided inside between a first sheet (310) and a second sheet (320), and the hot water pipe (330) may include a first hot water pipe (330a) and a second hot water pipe (330b) that are separated from each other.

[0083] The arrangement of the hot water pipe (330) can be applied in the same way as the arrangement of the hot water pipe receiving portion (e.g., the hot water pipe receiving portion (360) of FIG. 6) formed by the plurality of joints (350) described above.

[0084] The first hot water pipe (330a) and the second hot water pipe (330b) may be provided to allow water having different temperatures to circulate, and accordingly, the heating pad (300') can separately control the temperature of the left area corresponding to the first hot water pipe (330a) and the right area corresponding to the second hot water pipe (330b).

[0085] The first hot water pipe (330a) may include a first return pipe (322a) for returning internal water to a boiler section (e.g., the boiler section (20) of FIG. 1), and the second hot water pipe (330b) may include a second return pipe (322b) for returning internal water to the boiler section (20). The first return pipe (322a) and the second return pipe (322b) may extend outside the first sheet (310) and the second sheet (320) and be connected to a connector (340). Here, the first and second return pipes (322a, 322b) may be referred to as return pipes.

[0086] The first hot water pipe (330a) may include a first supply pipe (333a) for water supplied from the boiler unit (20) to flow through, and the second hot water pipe (330b) may include a second supply pipe (333b) for water supplied from the boiler unit (20) to flow through. The first supply pipe (333a) and the second supply pipe (333b) are connected to a branch pipe (335), and the branch pipe (335) may be connected to an integrated supply pipe (334) connected to a connector (340). That is, the integrated supply pipe (334) may be branched into the first supply pipe (333a) and the second supply pipe (333b) through a Y-shaped branch pipe (335).

[0087] According to the illustrated embodiment, the branch pipe (335) is located inside between the first sheet (310) and the second sheet (320), but this is exemplary and the location of the branch pipe (335) is not particularly limited.

[0088] The fixing band (370) can fix at least one of the first supply pipe (333a), the second supply pipe (333b), the first recovery pipe (322a), and the second recovery pipe (322b) inside between the first sheet (310) and the second sheet (320).

[0089] Meanwhile, although not shown, the boiler section (20) may be provided with a flow path to which the first recovery pipe (322a) is connected and a flow path to which the second recovery pipe (322b) is connected, and a valve may be installed on each flow path to control the recovery or return of water through the first recovery pipe (322a) and the second recovery pipe (322b).

[0090]

[0091] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

[0092]

[0093] [Explanation of the symbol]

[0094] 1 : Hot water mattress

[0095] 10: Matte section

[0096] 11 : Opening

[0097] 20: Boiler section

[0098] 100 : 1st pad

[0099] 110: First tooth profile

[0100] 120 : Zipper handle

[0101] 200 : 2nd pad

[0102] 210: Second tooth profile

[0103] 300 : Heating pad

[0104] 310 : 1st sheet

[0105] 320 : 2nd sheet

[0106] 330 : Hot water pipe

[0107] 331 : Internal Affairs

[0108] 332 : 1st External View

[0109] 333 : 2nd External View

[0110] 340 : Connector

[0111] 350 : Joint

[0112] 360 : Hot water pipe receiving section

[0113] 370 : Fixing band

[0114] C1 : Zipper structure

[0115] C2: Fastening means

[0116] L: Length direction

[0117] W: Width direction

Claims

1. First pad; A second pad detachably coupled to the first pad; and A heating pad disposed between the first pad and the second pad; comprising The above heating pad is, A first sheet; a second sheet disposed below the first sheet; and a hot water pipe disposed between the first sheet and the second sheet, with at least a portion extending outward; comprising The above heating pad is provided with a plurality of joints in which at least a portion of the first sheet and the second sheet are joined to each other, and The above-mentioned hot water pipe is a mat portion for a hot water mat that is partially extended to be inserted into a plurality of hot water pipe receiving portions formed between the plurality of joints.

2. In Claim 1, The first pad and the second pad are, A mat part for a hot water mat, configured such that the edge portion is joined by a double zipper structure.

3. In Claim 2, The first pad above includes a first tooth portion, and The second pad includes a second tooth portion provided to engage with the first tooth portion. A mat portion for a hot water mat, wherein the first pad and the second pad are provided with a zipper handle that is slidably coupled along the first tooth portion and the second tooth portion.

4. In Claim 1, The first pad and the second pad are provided such that an opening is formed on one side while they are joined together, and A mat portion for a hot water mat, wherein at least a portion of the hot water pipe extends to the outside of the first pad and the second pad through the opening.

5. In Claim 1, The above heating pad is a mat part for a hot water mat that is detachably coupled to at least one of the first pad and the second pad through a fastening means.

6. In Claim 5, The above fastening means comprises Velcro or a fastening strap, for a mat portion for a hot water mat.

7. In Claim 1, The above plurality of joints are formed by fusing or sewing together a portion of the facing first sheet and the second sheet, forming a mat portion for a hot water mat.

8. In Claim 1, The plurality of joints are extended to have a predetermined length along a first direction and are spaced apart at predetermined intervals along a second direction perpendicular to the first direction, and The above-mentioned hot water pipe is a mat portion for a hot water mat that is partially bent and extended so as to be inserted into the plurality of hot water pipe receiving portions provided between the plurality of adjacent joint portions.

9. In Claim 8, The above hot water pipe is, It includes an inner tube located inside between the first sheet and the second sheet, a first outer tube extending outward from one end of the inner tube, and a second outer tube extending outward from the other end of the inner tube. A mat portion for a hot water mat, wherein the first outer tube and the second outer tube are coupled to a connector.

10. In Claim 9, A portion of the above inner tube is supported by the plurality of joints, and A mat portion for a hot water mat, wherein the remaining part of the inner tube is partially supported by a fixing band provided between the first sheet and the second sheet.

11. In Claim 9, Either of the first outer pipe and the second outer pipe is a supply pipe for supplying water from the outside to the hot water pipe, and A mat part for a hot water mat, wherein either of the first outer tube and the second outer tube is a recovery tube for recovering water from the hot water tube to the outside.

12. In Claim 1, The above first sheet and the above second sheet comprise a waterproof material, forming a mat portion for a hot water mat.

13. In Claim 1, The above first pad and the above second pad are a mat portion for a hot water mat, comprising a cushion layer.

14. A boiler unit for heating hot water; and A mat section provided to provide heating by receiving hot water from the above-mentioned boiler section; and The above mat part is, A first pad; a second pad detachably coupled to the first pad; and a heating pad disposed between the first pad and the second pad; comprising The above heating pad is, A first sheet; a second sheet disposed below the first sheet; and a hot water pipe disposed between the first sheet and the second sheet and extending such that at least a portion is connected to the boiler unit; comprising The above heating pad is provided with a plurality of joints in which at least a portion of the first sheet and the second sheet are joined to each other, and A hot water mat, wherein the hot water pipe is extended to be partially inserted into a plurality of hot water pipe receiving portions formed between the plurality of joints.

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