A wearable stretchable heating sheet and a method of manufacturing

Abstract

The present application relates to the technical fields of heating clothes, and discloses a wearable stretchable heating sheet, which comprises: elastic cloth having left-right stretching characteristics; preset channels arranged on the elastic cloth, the preset channels being arranged in a continuous bending U-shaped or inverted U-shaped detour on the elastic cloth, the preset channels being turned at a position of 1 / 2 of a heating path length and arranged in the same continuous bending U-shaped or inverted U-shaped detour, and a starting end and an ending end of the preset channels being located on the same side; and a heating wire arranged in the preset channels, with a positive electrode and a negative electrode of the heating wire being arranged at the starting end and the ending end, respectively. The present application can meet the heating function of the heating clothes, and at the same time, meet the stretching requirement of the heating clothes.

Description

Technical Field

[0001] This invention relates to the field of heated clothing technology, and in particular to a wearable stretchable heating element and its preparation method. Background Technology

[0002] Heated clothing is a type of smart thermal clothing with built-in heating elements (such as heating wires, carbon fiber, etc.). It generates heat through electricity to provide active heating for the wearer and is suitable for outdoor activities, winter sports, or special work scenarios in cold environments.

[0003] The heating elements used in currently available wearable heated clothing, whether made of carbon fiber, metal wire, or carbon paste film, all utilize the high impedance of the heating wire itself to generate heat. However, all heating wires share a common characteristic: they cannot stretch. Therefore, heating elements in wearable heated clothing cannot be made of stretchable or elastic materials. Heating elements are typically fabricated as fixed sheets and then sewn onto the heated garment; even if the heated garment is made of stretchable elastic fabric, the heating element remains fixed to the garment and cannot be stretched.

[0004] Therefore, improvements are needed. Summary of the Invention

[0005] The technical problem solved by the present invention is to address the deficiencies in the prior art by providing a wearable stretchable heating pad to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wearable stretchable heating pad, comprising: an elastic fabric having lateral stretching characteristics; a pre-set channel disposed on the elastic fabric, the pre-set channel being arranged in a continuous U-shape or inverted U-shape on the elastic fabric, the pre-set channel turning around at 1 / 2 of the heating path length and being arranged in the same continuous U-shape or inverted U-shape, and the starting end and ending end of the pre-set channel being on the same side; a heating wire passing through the pre-set channel, the positive and negative terminals of the heating wire being respectively placed at the starting end and the ending end of the pre-set channel.

[0007] Furthermore, the elastic fabric includes an upper elastic fabric and a lower elastic fabric, and the upper elastic fabric and the lower elastic fabric are sewn together to form the pre-set channel.

[0008] Furthermore, the pre-set channel is formed by a herringbone stitch reciprocating along the path of the heating line, and the herringbone stitch binds the heating line to the elastic fabric.

[0009] Furthermore, the heating wire is made of a metal alloy heating wire or a carbon-based heating material.

[0010] Furthermore, the metal alloy heating wire may be a nickel-copper alloy or a nickel-chromium alloy.

[0011] Furthermore, the carbon-based heating material may be one of carbon fiber filaments, carbon paste film, graphene coating, or carbon nanotubes.

[0012] Furthermore, the elastic fabric can be one of natural elastic fiber fabric, synthetic elastic fiber fabric, or knitted elastic fabric.

[0013] A method for preparing a wearable stretchable heating pad involves forming a pre-set channel with continuous bending U-shapes or inverted U-shapes on an elastic fabric. The pre-set channel turns around at 1 / 2 of the heating path length and is arranged in the same continuous bending U-shape or inverted U-shape. The starting end and the ending end of the pre-set channel are in adjacent positions. A heating wire is inserted from the starting end of the pre-set channel and exits from the ending end of the pre-set channel.

[0014] Preferably, the pre-set channel is a hollow channel formed by sewing two layers of elastic fabric together.

[0015] Preferably, the pre-set channel is sewn along the path of the heating line using a herringbone stitch, which fixes the heating line to the elastic fabric.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Stretchability and Wearing Comfort: Utilizing a pre-set channel combined with a meandering heating wire design, the heating wires are arranged in a continuous U-shape / inverted U-shape within the pre-set channel. This channel extends with the fabric during stretching, preventing the heating wires from breaking. This design solves the problem of traditional heating pads using a rigid, single-piece structure, which limits their stretchability. It is suitable for areas requiring stretchability (such as the knees and lower back).

[0018] 2. Manufacturing process: The heating wire can be installed by sewing the upper / lower elastic fabric to form a pre-set channel, or the heating wire can be sewn directly onto the elastic fabric using herringbone stitching, ensuring that the heating wire is not torn when the elastic fabric is stretched. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 yes Figure 1 A schematic diagram of a partial cross-section structure.

[0021] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0022] Figure 4 yes Figure 3 A schematic diagram of a partial cross-section structure.

[0023] Figure 5 This is a schematic diagram of the present invention in a stretched state.

[0024] Figure 6 This is a schematic diagram of the existing heating element wiring method.

[0025] Figure 7 This is a schematic diagram of the existing heating element wiring method.

[0026] Reference numerals: 1. Elastic fabric; 2. Pre-set channel; 3. Starting point; 4. Ending point; 5. Heating line; 6. Upper elastic fabric; 7. Lower elastic fabric; 8. Herringbone stitch; 9. Sheet; 10. Halfway point of the heating path length. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In view of the technical problems described in the background art, such as Figure 1-5As shown, a wearable stretchable heating pad is provided, comprising: an elastic fabric 1 having lateral stretching characteristics; a pre-set channel 2 disposed on the elastic fabric 1, the pre-set channel 2 being arranged in a continuous U-shape or inverted U-shape on the elastic fabric 1, the pre-set channel 2 turning around at 1 / 2 of the heating path length and being arranged in the same continuous U-shape or inverted U-shape, and the starting end 3 and the ending end 4 of the pre-set channel 2 being on the same side; and a heating wire 5 passing through the pre-set channel 2, the positive and negative terminals of the heating wire 5 being respectively located at the starting end 3 and the ending end 4 of the pre-set channel 5.

[0030] refer to Figure 6-7 Traditional heating elements consist of a heating wire encapsulated on a sheet 9 to form a heating unit. Since the sheet 9 lacks tensile strength, the heating element cannot be stretched. To address this, a wearable, stretchable heating element is proposed.

[0031] In the above technical solution, the elastic fabric 1 can be one of natural elastic fiber fabric, synthetic elastic fiber fabric, or knitted elastic fabric 1, or other elastic fabric 1; it should be considered that a fabric with stretchable properties is elastic fabric 1. Among them, natural elastic fiber fabric can be cotton, wool, etc.; synthetic elastic fiber fabric can be cotton plus spandex, polyester plus spandex, nylon plus spandex, etc.; knitted elastic fabric 1 can be knitted cotton, knitted polyester, knitted nylon, etc.

[0032] A pre-formed channel 2 is formed on the elastic fabric 1. The pre-formed channel 2 is used to install the heating wire. The shape of the pre-formed channel 2 is a continuous U-shaped or inverted U-shaped meandering arrangement. The length and height of the continuous bends are designed according to the heating area required for actual implementation and are not limited in this regard. The pre-formed channel 2 is continuously bent in a U-shape or inverted U-shape according to the heating range. According to the length of the pre-installed heating wire 5, at half the length of the heating wire 5, the pre-formed channel 2 returns to the adjacent position of the starting end 3 along the same bending path. The heating wire 5 is inserted from the starting end 3 of the pre-formed channel 2, moves along the path of the pre-formed channel 2, and exits from the ending end 4 of the pre-formed channel 2. The positive and negative terminals of the heating wire 5 are placed at the starting end 3 and the ending end 4, respectively, completing the installation of the heating wire 5.

[0033] Using the above technical solution, when the elastic fabric 1 is stretched in the left and right direction during use, the preset channel 2 on the elastic fabric 1 undergoes synchronous stretching deformation in the left and right direction, and the heating wire 5 in the preset channel 2 can deform along with the preset channel 2, thereby avoiding tearing and damage to the heating wire.

[0034] The design employs a pre-set channel 2 combined with a meandering heating wire 5. The heating wire 5 is installed within the pre-set channel 2 in a continuous U-shaped / inverted U-shaped meandering arrangement. The pre-set channel 2 extends with the fabric during stretching, preventing the heating wire 5 from breaking. This design solves the problem of traditional heating pads using a rigid, one-piece structure, which prevents them from stretching. It is suitable for areas requiring stretching functionality (such as the knees and waist).

[0035] like Figure 2 As shown, the elastic fabric 1 includes an upper elastic fabric 6 and a lower elastic fabric 7, and the upper elastic fabric 6 and the lower elastic fabric 7 are sewn together to form the pre-set channel 2.

[0036] As a feasible technical solution, the pre-set channel 2 can be formed by sewing an upper elastic fabric 6 and a lower elastic fabric 7 together. The size of the pre-set channel 2 needs to be sufficient for the heating wire 5 to be inserted. In practice, the pre-set channel 2 can be pre-sewn and then the heating wire 5 can be inserted.

[0037] like Figure 4 As shown, the pre-set channel 2 is formed by the herringbone stitch 8 reciprocating along the path of the heating line 5, and the herringbone stitch 8 binds the heating line 5 to the elastic fabric 1.

[0038] As another feasible technical solution, in implementation, the heating wire 5 is laid on the elastic fabric 1 according to the heating range, and the heating wire 5 is sewn on the elastic fabric 1 using herringbone stitch 8. When the elastic fabric 1 is stretched horizontally, the herringbone stitch 8 drives the heating wire 5 to stretch and deform synchronously to meet the stretching requirements.

[0039] Preferably, the heating wire is made of a metal alloy heating wire or a carbon-based heating material. The metal alloy heating wire can be a nickel-copper alloy or a nickel-chromium alloy, or other types of heating wire.

[0040] The carbon-based heating material can be one of carbon fiber filaments, carbon paste film, graphene coating, or carbon nanotubes.

[0041] The following provides a method for preparing a wearable, stretchable heating pad.

[0042] A pre-set channel 2 with continuous U-shaped or inverted U-shaped bends is formed on the elastic fabric 1. The pre-set channel 2 turns around at 1 / 2 of the heating path length and is arranged in the same continuous U-shaped or inverted U-shaped bends. The starting end 3 and the ending end 4 of the pre-set channel 2 are in adjacent positions. The heating wire 5 is inserted from the starting end 3 of the pre-set channel 2 and exits from the ending end 4 of the pre-set channel 2. At this time, the positive and negative poles of the heating wire are located at the starting end 3 and the ending end 4 of the pre-set channel 2, respectively.

[0043] In one feasible preparation method, the pre-formed channel 2 is a hollow channel formed by sewing two layers of elastic fabric 1 together. During processing, the pre-formed channel 2 can be prepared in advance, and then the heating wire 5 is passed through the pre-formed channel 2 to complete the processing.

[0044] In another feasible preparation method, the pre-set channel 2 is sewn along the path of the heating line 5 using a herringbone stitch 8, which fixes the heating line 5 to the elastic fabric 1. During processing, the heating line 5 is laid out along the length of the heating path, and then sewn onto the elastic fabric 1 using the herringbone stitch 8.

[0045] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the technical scope of the present invention.

Claims

1. A wearable, retractable heating element, characterized in that, include: An elastic fabric having lateral stretching properties; A pre-set channel is provided on the elastic fabric. The pre-set channel is arranged in a continuous U-shape or inverted U-shape on the elastic fabric. The pre-set channel turns around at 1 / 2 of the heating path length and is arranged in the same continuous U-shape or inverted U-shape. The starting end and the ending end of the pre-set channel are on the same side. A heating wire is inserted into the preset channel, with the positive and negative terminals of the heating wire located at the starting and ending points of the preset channel, respectively.

2. The wearable retractable heating pad according to claim 1, characterized in that: The elastic fabric includes an upper elastic fabric and a lower elastic fabric, and the upper elastic fabric and the lower elastic fabric are sewn together to form the pre-set channel.

3. The wearable retractable heating pad according to claim 1, characterized in that: The pre-set channel is formed by a herringbone stitch that runs back and forth along the path of the heating line, and the herringbone stitch binds the heating line to the elastic fabric.

4. The wearable retractable heating pad according to claim 1, characterized in that: The heating wire is made of metal alloy heating wire or carbon-based heating material.

5. The wearable retractable heating pad according to claim 4, characterized in that: The metal alloy heating wire can be a nickel-copper alloy or a nickel-chromium alloy.

6. The wearable retractable heating pad according to claim 4, characterized in that: The carbon-based heating material can be one of carbon fiber filaments, carbon paste film, graphene coating, or carbon nanotubes.

7. The wearable retractable heating pad according to claim 1, characterized in that: The elastic fabric can be one of natural elastic fiber fabric, synthetic elastic fiber fabric, or knitted elastic fabric.

8. A method for preparing a wearable, stretchable heating pad, characterized in that: A pre-set channel with continuous U-shaped or inverted U-shaped meandering is formed on the elastic fabric. The pre-set channel turns around at 1 / 2 of the heating path length and is arranged in the same continuous U-shaped or inverted U-shaped meandering pattern. The starting end and the ending end of the pre-set channel are in adjacent positions. Insert the heating wire into the preset channel from the beginning end and out from the preset channel from the end end.

9. The method for preparing the wearable stretchable heating pad according to claim 8, characterized in that: The pre-set channel is a hollow channel formed by sewing the upper elastic fabric and the lower elastic fabric together.

10. The method for preparing the wearable stretchable heating pad according to claim 8, characterized in that: The pre-set channel is sewn along the path of the heating line using a herringbone stitch, which fixes the heating line to the elastic fabric.

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