A mat for thermal insulation

Abstract

This application provides a heat-insulating mat, comprising a main body, a folded portion, and an edge portion. The edge portion is located at the edge of the main body, and the folded portion extends through the main body. The main body includes a first heat-insulating layer and a second heat-insulating layer. The first heat-insulating layer includes an upper heat-insulating sheet and a lower heat-insulating sheet. The upper heat-insulating sheet and the lower heat-insulating sheet are arranged opposite each other to form a receiving space. The second heat-insulating layer is sandwiched between the upper heat-insulating sheet and the lower heat-insulating sheet. The edge portion includes a connecting strap, which is arranged along the edge portion and uses stitching to sequentially fix the upper heat-insulating sheet, the second heat-insulating layer, and the lower heat-insulating sheet from top to bottom. The upper heat-insulating sheet, the second heat-insulating layer, and the lower heat-insulating sheet can be folded along the folded portion. The mat provides good heat insulation and is easy to store.

Description

Technical Field

[0001] This application relates to the field of mat technology, and more specifically, to a mat for thermal insulation. Background Technology

[0002] In daily life, when people heat food using smart tabletop heating systems, the tabletop and tableware often become very hot, causing damage. For example, in scenarios where the flexible heating plate is in direct contact with the tabletop, the plate can raise the surface temperature, potentially damaging marble, quartz, glass, or solid wood tabletops. Similarly, placing a freshly baked baking tray, air fryer, or boiling casserole dish directly onto a heat-sensitive surface will also cause damage. Based on these various applications, people have devised heat-insulating mats to protect food, tableware, and other everyday items from heat.

[0003] However, market research and actual use have revealed that existing heat insulation mats suffer from poor structural stability, insufficient heat insulation performance, inconvenient storage, and poor environmental friendliness. For example, traditional heat insulation mats often use adhesives to bond multiple layers of materials, which are prone to delamination and peeling due to adhesive aging in high-temperature environments, affecting their lifespan. Furthermore, the single material of traditional heat insulation mats, such as rubber or fabric, cannot simultaneously provide both heat reflection and heat conduction insulation, resulting in poor desktop temperature control. Additionally, traditional heat insulation mats lack specialized folding designs, resulting in large unfolded volumes and easy deformation when folded, taking up storage space. Moreover, most materials in traditional heat insulation mats are non-biodegradable or non-recyclable, easily causing environmental pollution after disposal. All these problems lead to a poor user experience and also present technical issues related to safety. Utility Model Content

[0004] In view of the above-mentioned technical problems, this application provides a heat insulation mat, the mat including a main body, at least one folded portion and an edge portion, the edge portion being disposed at the edge of the main body, and the folded portion penetrating the main body;

[0005] The main body comprises a first heat insulation layer and a second heat insulation layer. The first heat insulation layer includes an upper heat insulation sheet and a lower heat insulation sheet. The upper heat insulation sheet is composed of cloth, a coating, and aluminum foil, with the coating applied between the aluminum foil and the cloth. The upper heat insulation sheet is configured as the surface of the pad and is positioned to contact a heat source. The lower heat insulation sheet is disposed opposite to the upper heat insulation sheet and is composed of cloth, the coating, and the aluminum foil, with the coating applied between the aluminum foil and the cloth. The lower heat insulation sheet is configured as the bottom surface of the pad. The upper and lower heat insulation sheets are disposed opposite to each other to form a receiving space. The second heat insulation layer and the first heat insulation layer are approximately similar in shape and size. Similarly, the second heat insulation layer is installed within the receiving space and is made of a flexible material, sandwiched between the upper heat insulation sheet and the lower heat insulation sheet; the upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet are stacked sequentially from top to bottom to form the main body; the edge portion includes connecting strips, which are arranged along the edge portion and are used to fix the upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet sequentially from top to bottom by stitching, so that the upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet are aligned sequentially from top to bottom; the upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet can be folded along the folding portion.

[0006] Specifically, the upper heat insulation sheet includes an outer surface and an inner surface, the outer surface and the inner surface are arranged opposite to each other, and the aluminum foil, the coating and the cloth are stacked sequentially from the outside to the inside between the outer surface and the inner surface. The aluminum foil, the coating and the cloth are formed by hot pressing. The aluminum foil forms the outer surface, the cloth forms the inner surface, and the coating is sandwiched between the outer surface and the inner surface.

[0007] Specifically, the lower heat insulation sheet includes an outer surface and an inner surface, the outer surface and the inner surface are arranged opposite to each other, and the aluminum foil, the coating and the cloth are stacked sequentially from the outside to the inside between the outer surface and the inner surface. The aluminum foil, the coating and the cloth are formed by hot pressing process; the aluminum foil forms the outer surface, the cloth forms the inner surface, and the coating is sandwiched between the outer surface and the inner surface.

[0008] Specifically, the surface or bottom of the mat is provided with a texture, the texture including recessed areas and raised areas, wherein the recessed areas and the raised areas are arranged adjacent to each other, and the shape of the raised areas is at least one of the following: circular, triangular, polygonal, elliptical, and irregular shapes.

[0009] Specifically, the upper heat insulation sheet and the lower heat insulation sheet are roughly the same in shape and size.

[0010] Specifically, the fabric is at least one of Oxford cloth, canvas, or plain weave fabric.

[0011] Specifically, the coating material can be at least one of PE, PU, ​​TPU, PVC, and PET.

[0012] Specifically, the second heat insulation layer includes a second aluminum foil, a rubber-plastic composite, and a third aluminum foil; the second aluminum foil, the rubber-plastic composite, and the third aluminum foil are arranged sequentially, and the second aluminum foil, the rubber-plastic composite, and the third aluminum foil are all sheet-like structures; wherein, the rubber-plastic composite is sandwiched between the second aluminum foil and the third aluminum foil, and the second aluminum foil, the rubber-plastic composite, and the third aluminum foil have approximately the same shape and size.

[0013] Specifically, the thickness of the upper heat insulation sheet and the lower heat insulation sheet is 0.3-0.9 mm, and the thickness of the second heat insulation layer is 3-12 mm.

[0014] Specifically, the folded portion includes at least one stitch that extends along the main body portion, from one of the edge portions to the other edge portion, and through the main body portion; wherein the thickness of the folded portion is less than the thickness of the main body portion.

[0015] Specifically, the thickness of the folded portion ranges from 0.1 to 0.2 mm, and the thickness of the main body portion ranges from 3 to 15 mm.

[0016] Specifically, the mat can be folded at least twice along the stitch line.

[0017] Specifically, the shape formed by the stitching on the main body can be any shape including parallel lines, a grid pattern, or a cross pattern.

[0018] Specifically, after the main body is folded along the folding portion, the main body is divided into several rectangles along the folding portion.

[0019] Specifically, the main body includes a folded state and an unfolded state; when the main body is folded along the folding portion, the main body is in the folded state; when the main body is on the same plane, the main body is in the unfolded state.

[0020] Compared to existing technologies, this solution employs a hot-pressing composite process to combine fabric, coating, and aluminum foil to form upper and lower insulation sheets, respectively. These are then secured with webbing stitching, avoiding the risk of delamination at high temperatures and improving structural durability. Furthermore, the top and bottom aluminum foils reflect heat radiation, while the middle layer of the second insulation layer, a rubber-plastic material with a microporous structure, blocks heat conduction, achieving double insulation and effectively reducing the temperature of the countertop or tableware. The stitching on the mat's surface creates folds that allow it to be folded multiple times along a predetermined path, reducing its volume after folding compared to its unfolded state, making it suitable for drawers or portable applications. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and their descriptions to explain this application, but do not constitute an undue limitation of this application. Some specific embodiments of this application will be described in detail below with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings designate the same or similar parts or components. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale, wherein:

[0022] Figure 1 This is a schematic flowchart of a method for forming a heat insulation pad provided in this application;

[0023] Figure 2 This is a flowchart of step S2 in one embodiment provided in this application;

[0024] Figure 3 This is a flowchart of step S2 in another embodiment provided in this application;

[0025] Figure 4 This is a flowchart illustrating step S3;

[0026] Figure 5 This is a flowchart of step S4.

[0027] Figure 6 This is a flowchart of step S5.

[0028] Figure 7 This is a flowchart of step S6;

[0029] Figure 8 This is a flowchart of step S7;

[0030] Figure 9 This is a flowchart of step S8;

[0031] Figure 10 This is a flowchart of step S9;

[0032] Figure 11 This is a flowchart of step S10;

[0033] Figure 12 This is a flowchart of step S11;

[0034] Figure 13 This is a structural schematic diagram of a heat insulation pad provided in this application;

[0035] Figure 14 This is a schematic diagram of the disassembled structure of a heat insulation pad provided in this application;

[0036] Figure 15 This is a schematic diagram of the side structure of a heat insulation pad provided in this application;

[0037] Figure 16 This is a schematic diagram of the partially unfolded state of the heat insulation pad of this application;

[0038] Figure 17 This is a schematic diagram of the folded state of the heat insulation pad according to this application;

[0039] Figure 18 This is a schematic diagram of the disassembled structure of the heat insulation pad of this application from another angle;

[0040] Figure 19 This is a schematic diagram of the unfolded state of another embodiment of the heat insulation pad of this application;

[0041] Figure 20 This is a schematic diagram of a semi-expanded state of another embodiment of the heat insulation pad of this application;

[0042] Figure 21 This is a schematic diagram of the folded state of another embodiment of the heat insulation pad of this application;

[0043] Figure 22 This is a schematic diagram of the unfolded state of the second insulation layer of another embodiment of the heat insulation pad of this application. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0046] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] The accompanying drawings appearing in this application are merely illustrative, and the dimensions and shapes involved are only representations of one embodiment and should not be regarded as limiting the scope of protection of the claims.

[0049] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0050] like Figure 1 As shown, Figure 1 This is a schematic flowchart illustrating a method for forming a heat insulation pad according to this application. It includes:

[0051] S1. Provide a certain quantity of coated cloth, adhesive layer and aluminum foil;

[0052] S2. A hot press is provided, which is configured to hot press coated cloth, adhesive layer and aluminum foil into a first heat insulation layer.

[0053] S3. Cut the first heat insulation layer to form an upper heat insulation sheet and a lower heat insulation sheet;

[0054] S4. Provide a certain quantity of nitrile rubber, polyvinyl chloride and additives;

[0055] S5. The nitrile rubber and the polyvinyl chloride are mixed to form a blend. The blend and the additives are vulcanized and foamed at a preset temperature for a preset time and cooled for a preset time to form a rubber-plastic composite.

[0056] S6. Process the rubber and plastic and the aluminum foil into a second heat insulation layer of a preset thickness;

[0057] S7. Provide a positioning clamp, which is configured to fix and stack the upper heat insulation sheet, the second heat insulation layer and the lower heat insulation sheet to form the main body of the pad;

[0058] S8. A sewing machine is provided to sew along the surface of the main body of the mat to form a folded edge of the mat;

[0059] S9. Provide a cutting tool device to process the main body of the mat into a preset width and length.

[0060] S10. Using a sewing machine, stitch the upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet again along the four edges of the main body of the mat;

[0061] S11. The connecting strip is sewn along the edge of the main body of the mat using a sewing machine to form the periphery of the mat, thereby fixing the upper heat insulation sheet, the second heat insulation layer and the lower heat insulation sheet.

[0062] It should be noted that, unless otherwise specified, the designations such as S1, S2, and S3 mentioned above are only for the purpose of making it easier to understand the relationship between the method steps and for the convenience of marking in the diagram, and do not uniquely limit the order of the steps.

[0063] In one embodiment of this application, a tight bond between materials is achieved by hot pressing with a hot press (steps S2 and S6), and then the materials are aligned by a positioning fixture (step S7) and double-thread overlock stitching with a sewing machine (steps S8, S10, and S11) to form a structurally stable heat-insulating pad, thus avoiding the problem of high-temperature aging and delamination.

[0064] For example, in a home kitchen, after cooking each day, high-temperature woks and soup pots are placed on the countertop, or high-temperature kitchen utensils are placed on a heating pad, which can easily cause the countertop temperature to rise. Traditional heat insulation pads are prone to deformation and have insufficient heat insulation. However, this heat insulation pad uses an aluminum foil surface layer to reflect most of the heat radiation, and a rubber and plastic middle layer to block heat conduction, which reduces the countertop temperature by 45-60% compared to not using a heat insulation pad. It is also effective for a long time and avoids the problem of high-temperature aging and delamination.

[0065] In one embodiment of this application, the heat insulation pad can be folded multiple times along its length by setting a folded edge formed by surface stitching, which fits into conventional drawer storage and saves space.

[0066] It should be noted that in step S1, a certain number of coatings are provided. These coatings can be various materials such as PE (polyethylene), PU (polyurethane), TPU (thermoplastic polyurethane), PVC (polyvinyl chloride), and PET (polyethylene terephthalate). As long as a polymer coating with similar functions and properties such as waterproofing, oil resistance, and weather resistance is used, it is acceptable; all are within the scope of this embodiment. In this embodiment, a PE coating is preferred. The PE coating has excellent waterproofing, chemical corrosion resistance, and low thermal conductivity, giving the first insulation layer waterproofing, oil resistance, easy cleaning, and heat insulation properties.

[0067] It should be noted that in step S1, a certain quantity of fabric is provided, which can be Oxford cloth or canvas. Both Oxford cloth and canvas are high-strength woven fabrics, and their common characteristics meet the functional requirements of the surface layer of the thermal insulation pad. Both can withstand the mechanical stress of hot-pressing (e.g., 180-220℃) and long-term folding and storage. The surface of Oxford cloth and canvas has a certain porosity, which can form a mechanical bond with coating materials such as PE and PU, preventing the coating from peeling off during subsequent use. In this example, Oxford cloth is preferred.

[0068] like Figure 2 As shown, Figure 2 This is a flowchart of step S2 in one embodiment provided in this application. Step S2 includes:

[0069] S21. A hot press is provided, which is configured at a preset temperature and a preset pressure;

[0070] S22, The hot press applies coated Oxford cloth to the surface of the aluminum foil through an adhesive layer;

[0071] S23. The hot press further heat-presses the coated Oxford cloth and the aluminum foil to form a first heat insulation layer with a width of 1-1.6m and a thickness of 0.3-0.9mm.

[0072] During the hot pressing process, textures of any surface can be pressed out, such as circles, triangles, polygons, diagonal lines, irregular lines, and straight lines, etc.

[0073] Any texture on the surface of the first insulation layer can offset interlayer stress, reduce heat conduction, accelerate heat dissipation, and conceal scratches.

[0074] For example, in real-world use, the frequent unfolding and folding of the mat can easily cause various scratches and wrinkles to form on its surface, making it impossible to maintain a roughly flat surface in each folded area over a long period of use. In this case, the textured surface of the first insulation layer can partially fill or cover shallow scratches, maintaining overall surface uniformity.

[0075] It should be noted that the preset temperature is 200-240℃ and the preset pressure is 0.5-1.5MPa.

[0076] It should be noted that the width of the first insulation layer is the width of the material, and the thickness is the shortest distance between the upper and lower surfaces of the first insulation layer, and the same applies to the following.

[0077] At this point, the first heat insulation layer consists of an upper heat insulation sheet and a lower heat insulation sheet, which are Oxford cloth aluminum foil with a thickness of 0.3-0.9 mm. The lower limit of its processing thickness is set to 0.3 mm to ensure its basic strength and prevent the fabric from stretching and deforming during hot pressing, while also providing the substrate support required for coating adhesion. Setting its upper limit to 0.9 mm controls the overall weight, ensuring the heat insulation pad can be folded and stored, and avoiding increased difficulty in the hot pressing process due to excessive thickness. In one embodiment, the thickness of the first heat insulation layer is preferably 0.5 mm.

[0078] The composite layer of coated fabric and aluminum foil has waterproof and oil-proof properties, and stains are easy to wipe clean.

[0079] like Figure 3 As shown, Figure 3 This is a flowchart of step S2 in another embodiment provided in this application. Step S2 includes:

[0080] S21. A hot press is provided, which is configured at a preset temperature and a preset pressure;

[0081] S22, The hot press applies coated Oxford cloth to the surface of the aluminum foil through an adhesive layer;

[0082] S23. The hot press further heat-presses the coated canvas and the aluminum foil to form a first heat insulation layer with a width of 1-1.6m and a thickness of 0.3-0.9mm.

[0083] During the hot pressing process, any texture can be pressed onto the surface of the first insulation layer, such as circles, triangles, polygons, diagonal lines, irregular lines, and straight lines, etc.

[0084] It should be noted that the preset temperature is 200-240℃ and the preset pressure is 0.5-1.5MPa.

[0085] At this point, the first heat insulation layer consists of an upper heat insulation sheet and a lower heat insulation sheet, both made of canvas aluminum foil with a thickness of 0.3-0.9 mm. This material is waterproof, oil-proof, and stain-resistant, easy to clean, and provides good heat insulation. In one embodiment, the thickness of the first heat insulation layer is preferably 0.5 mm.

[0086] In this embodiment, unlike another embodiment, the fabric is made of canvas.

[0087] like Figure 4 As shown, the Figure 4 The flowchart for step S3 includes:

[0088] S3. Cut the first heat insulation layer to form an upper heat insulation sheet and a lower heat insulation sheet.

[0089] At this point, cutting the first insulation layer means dividing it into two sheets to form an upper insulation sheet and a lower insulation sheet.

[0090] like Figure 5 As shown, the Figure 5 This is a flowchart of step S4, which includes:

[0091] S4. Provide a certain quantity of nitrile rubber, polyvinyl chloride and additives;

[0092] It should be noted that the additives include foaming agents, fillers, stabilizers, flame retardants, and other additives.

[0093] like Figure 6 As shown, the Figure 6 This is a flowchart of step S5, which includes:

[0094] S51. The nitrile rubber and the polyvinyl chloride are mixed to form a blend. The blend is then foamed with the foaming agent, filler, stabilizer and flame retardant at a preset temperature to form a plasticized rubber compound.

[0095] S52. An extruder apparatus is provided, which is configured to extrude the rubber compound into a continuous sheet-like preform;

[0096] S53. A calender is provided, which is configured to calender the sheet-like material into a continuous sheet-like material of uniform thickness;

[0097] S54. A foaming furnace apparatus is provided, which is configured to decompose the foaming agent at a high temperature, wherein the decomposition of the foaming agent generates gas, thereby forming a uniform and fine independent closed-cell structure in the sheet material.

[0098] S55. After the sheet material that has undergone vulcanization and foaming is cooled for a preset time, the sheet material is formed into a rubber-plastic composite.

[0099] The rubber and plastic are flexible materials with micropores. The micropores on the surface of the rubber and plastic can block heat conduction, improve flexibility and resistance to compression deformation, and block water vapor penetration.

[0100] like Figure 7 As shown, the Figure 7 This is a flowchart of step S6, which includes:

[0101] S61. Apply adhesive to the rubber-plastic surface;

[0102] S62. Adhere the outer and inner layers of the rubber and plastic to the aluminum foil to form a second heat insulation layer of a predetermined thickness;

[0103] S63. The surface and bottom layers of the second heat insulation layer are both wrapped with the aluminum foil, and the second heat insulation layer forms the second heat insulation layer of the pad.

[0104] The aluminum foil has a thickness of 7-12 μm, and the second heat insulation layer has a thickness of 3-12 mm.

[0105] At this point, the second insulation layer is the inner fabric layer, sandwiched inside the first insulation layer. The thickness of the second insulation layer is 3-12mm, with a lower limit of 3mm to ensure flexibility for easy folding, and an upper limit of 12mm to maintain structural rigidity while avoiding the risk of puncture due to excessive thinness. In this example, the second insulation layer is 5mm thick.

[0106] The micropores of the surface and bottom layers of the rubber and plastic are bonded to the aluminum foil, which can be done by using adhesives or hot pressing.

[0107] The aluminum foil composite forms a double-sided reflective layer on both the surface and bottom layers of the rubber and plastic, reducing radiative heat transfer compared to a single-sided aluminum foil design. The second insulation layer forms a continuous sealing layer between the aluminum foil and the rubber and plastic, making it difficult for water vapor to pass through and preventing the rubber and plastic from absorbing moisture and causing a decrease in insulation performance; at the same time, the aluminum foil acts as a surface reinforcement layer, improving the tear strength of the composite second insulation layer.

[0108] like Figure 8 As shown, the Figure 8 This is a flowchart of step S7, which includes:

[0109] S71. Provide a positioning fixture that receives the upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet;

[0110] S72. The upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet are fixedly stacked and aligned to form the main body of the mat.

[0111] At this point, the main body of the pad has a three-layer structure. The upper heat insulation sheet is made of canvas aluminum foil or Oxford cloth aluminum foil, the lower heat insulation sheet is made of canvas aluminum foil or Oxford cloth aluminum foil with high rigidity, and the second heat insulation layer is made of rubber and plastic aluminum foil, which is a flexible material and easy to fold. The three layers form the main body of the heat insulation pad.

[0112] like Figure 9 As shown, the Figure 9 This is a flowchart of step S8, which includes:

[0113] S8. A sewing machine is provided to sew along the surface of the main body of the mat to form a folded edge of the mat.

[0114] At this point, the stitching penetrates the upper heat insulation sheet, the middle heat insulation layer, and the lower heat insulation sheet to form a folded edge of the pad, which fixes the upper heat insulation sheet, the middle heat insulation layer, and the lower heat insulation sheet, making them less prone to deformation.

[0115] It should be noted that the predetermined trajectory can be parallel vertical lines, a grid pattern, or other shapes, forming a 0.1-0.2mm indented folding edge for easy folding by the user. In this embodiment, the folding edge is a parallel vertical line, dividing the mat into several rectangles.

[0116] like Figure 10 As shown, the Figure 10 This is a flowchart of step S9, which includes:

[0117] S9. Provide a cutting tool device to process the main body of the mat into a preset width and length.

[0118] At this point, the cutting device cuts the material according to the preset dimensions, processing the mat to form the actual finished product. The preset width and length of the actual finished product can be selected according to the user's actual needs and are not specifically limited. In this embodiment, the preset length of the actual finished product is 30-110cm, and the preset width is 30-45cm.

[0119] like Figure 11 As shown, the Figure 11 This is a flowchart of step S10, which includes:

[0120] S10. Using a sewing machine, stitch the upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet again along the four edges of the main body of the mat.

[0121] like Figure 12 As shown, the Figure 12 This is a flowchart of step S11, which includes:

[0122] S11. The connecting strip is sewn along the edge of the main body of the mat using a sewing machine to form the periphery of the mat, thereby fixing the upper heat insulation sheet, the second heat insulation layer and the lower heat insulation sheet.

[0123] At this point, the wiring penetrates the upper heat insulation sheet, the middle heat insulation layer, and the lower heat insulation sheet fixing connecting strip to form the periphery of the heat insulation pad, which fixes the upper heat insulation sheet, the middle heat insulation layer, and the lower heat insulation sheet, making them less prone to deformation.

[0124] like Figure 13 , Figure 14 as well as Figure 15As shown, Figure 13 This is a structural schematic diagram of a heat insulation pad provided in this application. Figure 14 This is a schematic diagram of the disassembled structure of a heat insulation pad provided in this application. Figure 15 This is a schematic diagram of the side structure of a heat insulation pad provided in this application.

[0125] The heat insulation pad 100 is formed using any of the methods described above. All methods for forming heat insulation pads mentioned in this application can be applied to the heat insulation pad 100, so they will not be described again here. The heat insulation pad 100 includes a main body, at least one folded portion, and an edge portion. The edge portion is disposed at the edge of the main body, and the folded portion passes through the main body.

[0126] The main body consists of a first heat insulation layer 10 and a second heat insulation layer 20. The first heat insulation layer 10 includes an upper heat insulation sheet 101 and a lower heat insulation sheet 102. The second heat insulation layer 20 is an intermediate heat insulation layer 201, which is sandwiched between the upper heat insulation sheet 101 and the lower heat insulation sheet 102.

[0127] The folded portion 40 has at least one stitch 401 that extends along the main body portion, from one edge portion to another edge portion, and through the main body portion, for securing the main body portion;

[0128] The edge portion is a connecting strip 30, and the middle heat insulation layer 201 is sandwiched between the upper heat insulation sheet 101 and the lower heat insulation sheet 102. The sandwiching method can be fixing with the connecting strip 30, which can be fixed by webbing, edge binding, adhesive, etc. In this application, webbing is used to fix the middle heat insulation layer 201 between the upper heat insulation sheet 101 and the lower heat insulation sheet 102.

[0129] like Figure 13 and Figure 14 As shown, the upper heat insulation sheet 101 is the surface layer of the heat insulation pad. The upper heat insulation sheet 101 is configured as the surface of the pad and is configured to contact the heat source. It is composed of cloth 1011, coating 1012 and aluminum foil 1013. The upper heat insulation sheet 101 includes an outer surface and an inner surface. The outer surface and the inner surface are arranged opposite to each other. Aluminum foil 1013, coating 1012 and cloth 1011 are stacked sequentially from the outside to the inside between the outer surface and the inner surface. Aluminum foil 1013, coating 1012 and cloth 1011 are formed by hot pressing process. Aluminum foil 1013 forms the outer surface, cloth 1011 forms the inner surface, and coating 1012 is sandwiched between the outer surface and the inner surface.

[0130] It should be noted that the fabric can be Oxford cloth, canvas, or plain weave fabric; in this example, Oxford cloth is preferred.

[0131] It should be noted that the coating 1012 can be made of various materials such as PE (polyethylene), PU (polyurethane), TPU (thermoplastic polyurethane), PVC (polyvinyl chloride), and PET (polyethylene terephthalate). As long as a similar polymer coating is used and possesses properties such as waterproofing, oil resistance, and weather resistance, it is acceptable; all are within the scope of this embodiment. The surface of the heat insulation pad 100 is a generally flat, smooth surface, used to place hot items. In practical applications, the hot items can be tableware, food, etc.

[0132] In this application, the outer surface of the upper heat insulation sheet 101 is textured, the texture including recessed areas (not shown) and raised areas (not shown), wherein the recessed areas and the raised areas are arranged adjacent to each other, and the shape of the raised areas can be various shapes such as circles, triangles, polygons, diagonal lines, irregular lines, and straight lines. Any texture on the outer surface can offset interlayer stress, reduce heat conduction, accelerate heat dissipation, and conceal scratches.

[0133] like Figure 14 As shown, the lower heat insulation sheet 102 is the bottom layer of the mat and is used to contact the tabletop. It is disposed opposite to the upper heat insulation sheet 101. The lower heat insulation sheet 102 is composed of the cloth 1021, the coating 1022, and the aluminum foil 1023. The lower heat insulation sheet 102 includes an outer surface and an inner surface, which are disposed opposite to each other. The aluminum foil 1023, the coating 1022, and the cloth 1021 are stacked sequentially from the outside to the inside between the outer surface and the inner surface. The aluminum foil 1023, the coating 1022, and the cloth 1021 are formed by a hot pressing process. The aluminum foil 1023 forms the outer surface, the cloth 1021 forms the inner surface, and the coating 1022 is sandwiched between the outer surface and the inner surface.

[0134] It should be noted that the upper heat insulation sheet 101 and the lower heat insulation sheet 102 are roughly the same in shape, size and material.

[0135] It should be noted that the fabric can be Oxford cloth, canvas, or plain weave fabric; in this example, Oxford cloth is preferred.

[0136] It should be noted that the coating 1022 can be made of various coating materials such as PE (polyethylene), PU (polyurethane), TPU (thermoplastic polyurethane), PVC (polyvinyl chloride), and PET (polyethylene terephthalate). As long as a polymer coating with similar functions is used and has properties such as waterproofing, oil resistance, and weather resistance, it is within the scope of the embodiments.

[0137] In this application, the outer surface of the lower heat insulation sheet 102 is also textured, such as various shapes including circles, triangles, polygons, diagonal lines, irregular lines, and straight lines. Any texture on the surface can offset interlayer stress, reduce heat conduction, accelerate heat dissipation, and conceal scratches.

[0138] The upper heat insulation sheet 101 and the lower heat insulation sheet 102 form the top and bottom surfaces of the pad 100, and the top and bottom surfaces of the heat insulation pad have the same length and width.

[0139] like Figure 13 and Figure 14 As shown, the second heat insulation layer 20 is an intermediate heat insulation layer 201, which is a flexible material composed of rubber-plastic 2011, a second aluminum foil 2012, and a third aluminum foil 2013. The second aluminum foil 2012, the rubber-plastic 2011, and the third aluminum foil 2013 are arranged sequentially, and all three are sheet-like structures. The rubber-plastic 2011 is sandwiched between the second and third aluminum foils, and the second aluminum foil, the rubber-plastic, and the third aluminum foil have approximately the same shape and size. The rubber-plastic 2011 is a flexible and resilient material, formed by vulcanizing and foaming a mixture of nitrile rubber, polyvinyl chloride, and a foaming agent in a certain mass ratio. Its surface has micropores, which can block heat conduction, improve flexibility and resistance to compression deformation, and block water vapor penetration.

[0140] The second aluminum foil 2012 and the third aluminum foil 2013 are laminated on the surface and bottom of the rubber and plastic 2011 to form a double-sided reflective layer, which reduces radiative heat transfer compared to a single-sided aluminum foil design. A continuous sealing layer is formed between the aluminum foil and the rubber and plastic 2011, which makes it difficult for water vapor to pass through and avoids the degradation of thermal insulation performance caused by moisture absorption by the rubber and plastic.

[0141] In one embodiment, the thickness of the rubber-plastic composite 2011 is 3-9 mm, the thickness of the second aluminum foil 2012 and the third aluminum foil 2013 is 7-12 μm, and the total thickness of the second heat insulation layer 201 after the rubber-plastic composite 2011 and aluminum foil is 3-12 mm. This lower limit of 3 mm ensures flexibility for easy folding, while the upper limit of 12 mm maintains structural rigidity and avoids the risk of puncture due to excessive thinness. In this example, the second heat insulation layer is 5 mm thick.

[0142] In one embodiment, in order to make the upper heat insulation sheet 101, the middle heat insulation layer 201 and the lower heat insulation sheet 102 into a finished mat 100, the upper heat insulation sheet 101 and the lower heat insulation sheet 102 are wrapped with the middle heat insulation layer 201 by a sewing machine through a webbing 30, so as to apply the middle heat insulation layer 201 to the inner layer of the heat insulation mat 100.

[0143] like Figure 15As shown, at this point, the thickness of the finished mat 100 is only 3-15mm, making it easy to fold and store.

[0144] In one embodiment, the mat 100 is configured to place a mat between the table and the table when the tableware is used in the heated area of ​​the table, thereby maintaining a lower table temperature when hotter tableware or heated products are used on a heat-sensitive table surface.

[0145] Please see Figure 13 In one embodiment, the mat 100 is divided into 6 regions by stitching 401, each region being approximately a flat rectangle, and each region is connected by a folded edge of stitching 401.

[0146] In practical applications, this heat-insulating mat 100 is suitable for families of 3-8 people to use when dining. Its bottom layer is attached to the table or heating pad, and its top surface is used to hold tableware or hot food to maintain a suitable temperature and prevent the tabletop from getting too hot.

[0147] For example, designed for daily meals for families of 3-8 people, the six zones allow for the placement of main bowls, soup bowls, plates, and water glasses, creating an organized dining layout. When used with a table heating pad in winter, it prevents the table from cracking due to localized overheating. It can also serve as a temporary mat next to the stove, protecting the surface from damage; and in outdoor picnic settings, its waterproof surface adapts to varying outdoor environments.

[0148] Please see Figure 16 , Figure 16 This is a schematic diagram of the partially unfolded state of the heat insulation pad according to this application. In one embodiment, the heat insulation pad 100 is divided into 6 regions by stitching, each region being approximately a flat rectangle. After the main body is partially folded along the folding portion, the main body is divided into several rectangles along the folding portion. In practical use, the user can quickly fold and store the pad along the folding portion 40 without having to compress it further, reducing storage time.

[0149] Please see Figure 17 , Figure 17 This is a schematic diagram of the folded state of the heat insulation pad of this application.

[0150] like Figure 17 As shown, the mat 100 is in a fully folded state, and each area is roughly a flat rectangle. Each outer edge of each mat is provided with a connecting strip 30 and a stitch 401 to fix the second insulation layer 20 to the inner layer of the first insulation layer 10 and prevent it from shifting.

[0151] In practical use, users can quickly fold the mat along the fold section 40 to store it in a rectangular shape. This mat can then be placed in a cabinet or corner, reducing its storage space. Furthermore, it saves on transport volume when dining outdoors, making it convenient to carry.

[0152] Please refer to the following: Figure 17 and Figure 18 , Figure 18 This is a schematic diagram showing another angle of the disassembled structure of the heat insulation pad of this application. To better secure the upper heat insulation sheet 101, the second heat insulation layer 20, and the lower heat insulation sheet 102, the pad 100 undergoes three stitching processes. The first stitching secures the upper heat insulation sheet 101, the second heat insulation layer 20, and the lower heat insulation sheet 102 with stitches 401 through the folded portion 40. The second stitching secures the four edges of the upper heat insulation sheet 101, the second heat insulation layer 20, and the lower heat insulation sheet 102 with stitches 401. The third stitching further secures the four edges of the upper heat insulation sheet 101, the second heat insulation layer 20, and the lower heat insulation sheet 102 with binding webbing 30. After these three stitching processes, each edge of the outer edge of the pad 100 is fitted with connecting tape 30 and stitches 401 to secure the second heat insulation layer to the inner layer of the heat insulation pad, preventing displacement. Meanwhile, the folded part 40 is formed by the stitching 401, making it easy to store and fold.

[0153] Please see Figure 19 , Figure 19 This is a schematic diagram of the unfolded state of another embodiment of the heat insulation mat of this application. In one embodiment, the heat insulation mat 100 is divided into four regions by stitching, each region being approximately a flat rectangle. Each region is connected by a folded edge 40 of the stitching 401. In practical applications, the heat insulation mat 100 is suitable for use when dining in a family of 1-2 people. Its bottom layer is used to adhere to the table or heating pad, and its upper surface is used to hold tableware or hot food to maintain a suitable temperature and prevent the tabletop from overheating.

[0154] For example, for daily meals for 1-2 person families, the four areas can be used to place the main bowl, soup bowl, plate, and water glass, forming an orderly dining layout. When used with a table heating pad in winter, it prevents the table from cracking due to localized overheating. It can also be used as a temporary mat next to the stove to protect the surface from damage; furthermore, in outdoor picnic settings, its waterproof surface design adapts to varying outdoor environments.

[0155] Please see Figure 20 , Figure 20This is a schematic diagram of a semi-open state of another embodiment of the heat insulation pad according to this application. In one embodiment, the heat insulation pad 100 is divided into four regions by stitching lines 401, each region being approximately a flat rectangle, and each region is connected by a folded edge 40 of the stitching lines 401. In practical use, the user can quickly fold and store the pad along the folded edge 40 without having to compress it further, thus reducing storage time.

[0156] Please see Figure 21 , Figure 21 This is a schematic diagram of the folded state of another embodiment of the heat-insulating mat of this application. In one embodiment, the heat-insulating mat 100 is divided into four regions by stitching lines 401, each region being approximately a flat rectangle, and each region is connected by a folded edge 40 of the stitching lines 401. In practical use, the user can quickly fold and store the mat along the folded edge 40 into a rectangular area, which can then be placed in a cabinet or corner, reducing the volume occupied during storage. Furthermore, it saves on transport volume and is convenient to carry when dining outdoors.

[0157] Please see Figure 22 , Figure 22 This is a schematic diagram showing the unfolded state of the second insulation layer of another embodiment of the heat insulation pad of this application. The diagram shows that the total thickness of the second insulation layer 20 after the rubber and plastic are combined with the aluminum foil is 3-12 mm.

[0158] It should be noted that the mat 100 can also be made into a circular, triangular, or irregular shape. In this embodiment, a rectangle is preferred.

[0159] It should be noted that the folded stitching of the mat 100 can be parallel vertical lines, a grid pattern, or a cross pattern, etc. In this embodiment, parallel vertical lines are preferred.

[0160] It should be noted that the length and width of the mat 100 can be expanded indefinitely, and there are no restrictions here.

[0161] The descriptive terms “preset temperature” and “preset time” mentioned in this application are as follows: “preset temperature” refers to the target temperature value that the user sets in advance according to their needs, and “preset time” refers to the device running time or operation trigger time that the user sets in advance.

[0162] The descriptive terms “approximately,” “about,” and “close to” used in this application mean that the range of fluctuation relative to the standard value can vary within ±10%.

[0163] The term "at least one" as used in this application means that it can refer to one of the possible scenarios or the coexistence of multiple scenarios. For example, "at least one of A, B, and C" includes all possible combinations such as A appearing alone, B appearing alone, C appearing alone, A and B coexisting, and A and C coexisting. These will not be elaborated upon further.

[0164] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A pad for heat insulation, characterized in that, The mat includes: The body portion, at least one folded portion, and an edge portion, wherein the edge portion is disposed at the edge of the body portion and the folded portion extends through the body portion; The main body includes: A first heat insulation layer, the first heat insulation layer comprising: The upper heat insulation sheet is composed of cloth, a coating and aluminum foil, wherein the coating is applied between the aluminum foil and the cloth; the upper heat insulation sheet is configured as the surface of the pad and is configured to contact a heat source; A lower heat insulation sheet is disposed opposite to the upper heat insulation sheet. The lower heat insulation sheet is composed of the cloth, the coating, and the aluminum foil. The coating is applied between the aluminum foil and the cloth. The lower heat insulation sheet is configured as the bottom surface of the pad. The upper heat insulation sheet and the lower heat insulation sheet are disposed opposite to each other to form an accommodating space. The second heat insulation layer has a shape and size that are approximately the same as the first heat insulation layer. The second heat insulation layer is installed in the receiving space and is made of flexible material. It is sandwiched between the upper heat insulation sheet and the lower heat insulation sheet. The upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet are stacked sequentially from top to bottom to form the main body. The edge portion includes: A connecting strip is arranged along the edge portion, and the connecting strip is used to fix the upper heat insulation sheet, the second heat insulation layer and the lower heat insulation sheet from top to bottom in sequence by means of sewing, so that the upper heat insulation sheet, the second heat insulation layer and the lower heat insulation sheet are aligned from top to bottom; The upper heat insulation sheet, the second heat insulation layer, and the lower heat insulation sheet can be folded along the folded portion.

2. The heat insulation pad according to claim 1, characterized in that, The upper heat insulation sheet includes an outer surface and an inner surface, which are arranged opposite to each other. The aluminum foil, the coating, and the cloth are stacked sequentially from the outside to the inside between the outer surface and the inner surface. The aluminum foil, the coating, and the cloth are formed by a hot pressing process. The aluminum foil forms the outer surface, the cloth forms the inner surface, and the coating is sandwiched between the outer surface and the inner surface.

3. The heat insulation pad according to claim 1, characterized in that, The lower heat insulation sheet includes an outer surface and an inner surface, which are arranged opposite to each other. The aluminum foil, the coating, and the cloth are stacked sequentially from the outside to the inside between the outer surface and the inner surface. The aluminum foil, the coating, and the cloth are formed by a hot pressing process. The aluminum foil forms the outer surface, the cloth forms the inner surface, and the coating is sandwiched between the outer surface and the inner surface.

4. The heat insulation pad according to claim 1, characterized in that, The surface or bottom of the mat is provided with a texture, the texture including recessed areas and raised areas, wherein the recessed areas and the raised areas are arranged adjacent to each other, and the shape of the raised areas is at least one of the following: circular, triangular, polygonal, elliptical, and irregular shapes.

5. The heat insulation pad according to claim 1, characterized in that, The upper and lower heat insulation sheets are roughly the same in shape and size.

6. The heat insulation pad according to claim 1, characterized in that, The fabric is at least one of Oxford cloth, canvas, or plain weave fabric.

7. The heat insulation pad according to claim 1, characterized in that, The coating material is at least one of PE, PU, ​​TPU, PVC, and PET.

8. The heat insulation pad according to claim 1, characterized in that, The second insulation layer includes: Second aluminum foil; Rubber and plastics; Third aluminum foil; The second aluminum foil, the rubber-plastic composite, and the third aluminum foil are arranged sequentially, and the second aluminum foil, the rubber-plastic composite, and the third aluminum foil are all sheet-like structures; wherein, the rubber-plastic composite is sandwiched between the second aluminum foil and the third aluminum foil, and the second aluminum foil, the rubber-plastic composite, and the third aluminum foil have approximately the same shape and size.

9. The heat insulation pad according to claim 1, characterized in that, The thickness of the upper and lower heat insulation sheets is 0.3-0.9 mm, and the thickness of the second heat insulation layer is 3-12 mm.

10. The pad for heat insulation according to claim 1, characterized in that, The folded portion includes at least one stitch that extends along the main body portion, from one of the edge portions to the other edge portion, and through the main body portion; wherein the thickness of the folded portion is less than the thickness of the main body portion.

11. The heat-insulating pad according to claim 10, characterized in that, The thickness of the folded portion ranges from 0.1 to 0.2 mm, and the thickness of the main body portion ranges from 3 to 15 mm.

12. The heat-insulating mat according to claim 10, characterized in that, The mat can be folded at least twice along the stitch line.

13. The heat-insulating pad according to claim 12, characterized in that, The stitching on the main body is formed in at least one of the following shapes: parallel lines, a grid pattern, or a cross pattern.

14. The heat-insulating mat according to claim 1, characterized in that, After the main body is folded along the folding portion, the main body is divided into several rectangles along the folding portion.

15. The heat insulation pad according to claim 1, characterized in that: The main body includes a folded state and an unfolded state; When the main body is folded along the folding portion, the main body is in a folded state; When the main body parts are on the same plane, the main body parts are in an unfolded state.

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