Wearable elastic heating sheet and manufacturing method thereof

Abstract

The present invention discloses a wearable elastic heating sheet and a manufacturing method thereof, wherein the wearable elastic heating sheet comprises an upper packaging portion, an elastic electric heating body and a lower packaging portion stacked in sequence, and an electrode end electrically connected to the elastic electric heating body; wherein the upper packaging portion and the lower packaging portion both have a certain elastic restoring force, the elastic electric heating body has electrical conductivity and a certain elastic restoring force, and is arranged between the upper packaging portion and the lower packaging portion; the elastic electric heating body is made by spraying conductive particles on an elastic fabric, and then forming a hydrophobic anti-oxidation film on the surface through chemical treatment; the electrode end comprises a first metal rivet and a second metal rivet with good electrical conductivity, and the upper packaging portion is provided with a first hole and a second hole matching the first metal rivet and the second metal rivet. The present invention uses a material with a certain elasticity as a whole, and ultimately achieves that the heating sheet also has good elasticity and wearing comfort, which can realize the senseless wearing of smart wear.

Description

Technical Field

[0001] The present invention relates to the field of smart wearables, and in particular to a wearable elastic heating sheet and a manufacturing method thereof. Background Art

[0002] The heating sheets currently used in smart wearables are almost all sheet-like and non-elastic, limiting their use to garments that don't require stretch, such as padded jackets, down jackets, and scarves. Alternatively, if applied to stretchy garments, these lose their elasticity, causing discomfort. There are two main types of heating sheets used for clothing heating. One uses heating wires laid on non-elastic fabric to achieve heating, but this has the disadvantage of uneven heating and a noticeable thread when worn. The other involves encapsulating heating materials like graphene into thin sheets and applying them to clothing. While these sheets are thin and lightweight, they lack elasticity, significantly impacting user comfort and resulting in poor applicability.

[0003] There are two main types of heating sheets used for heating clothing. One is to use heating filaments to lay wires on non-elastic cloth to achieve heating. Its disadvantage is that the heating is not uniform and there will be a noticeable sense of lines when worn. The other is to encapsulate heating materials such as graphene into thin sheets and apply them to clothing. Although light and thin, they have no elasticity, which greatly affects the user's wearing comfort and has poor applicability. Summary of the Invention

[0004] A brief overview of embodiments of the present invention is provided below to provide a basic understanding of certain aspects of the present invention. It should be understood that the following overview is not an exhaustive overview of the present invention. It is not intended to identify key or important aspects of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is simply to present certain concepts in a simplified form as a prelude to the more detailed description discussed later.

[0005] In response to the above problems, the present invention proposes a wearable elastic heating sheet with good elastic recovery, uniform heat generation and high wearing comfort. The sheet uses an elastic heating material with good tensile properties on all four sides, stable resistance and heating performance; a hydrophobic and antioxidant elastic electric heating body is used, which is made by spraying conductive particles on an elastic fabric, and then chemically treating the surface to form a hydrophobic and antioxidant film; a metal riveted structure is used, the connection position is stable and the conductivity is high; and hot pressing is used, the structure is light and thin, and the applicability is strong.

[0006] According to one aspect of the present application, a wearable elastic heating sheet is provided, comprising an upper packaging portion, an elastic electric heating body and a lower packaging portion stacked in sequence, and an electrode end electrically connected to the elastic electric heating body; wherein the upper packaging portion and the lower packaging portion both have a certain elastic restoring force, the elastic electric heating body has conductive properties and a certain elastic restoring force, and is arranged between the upper packaging portion and the lower packaging portion; the electrode end comprises a first metal rivet and a second metal rivet with good conductive properties, the upper packaging portion is provided with a first hole and a second hole matching the first metal rivet and the second metal rivet, the first metal rivet is installed on the first hole of the upper packaging portion as a positive input end, and the second metal rivet is installed on the second hole of the upper packaging portion as a negative output end.

[0007] Furthermore, the elastic electric heating body is an elastic fabric with a conductive layer. Specifically, the elastic electric heating body is made of elastic fabric as a base material, and a conductive material is attached to the base material, and the conductive materials are in contact with each other to form a conductive network. During production, the elastic electric heating body is made by spraying conductive material particles on the elastic fabric, and then forming a hydrophobic anti-oxidation film on the surface through chemical treatment. Furthermore, the elastic electric heating body is made by spraying conductive material particles on the elastic fabric, specifically, by setting multiple parallel S-shaped isolation belts (whose length is not less than half of the entire elastic fabric length) in the middle position of the elastic fabric, and then spraying the conductive material particles on the elastic fabric, so that the conductive materials are in contact with each other to form a conductive network with intervals and without interruption. In the prior art, full yarn laying is generally used to achieve this, but this method is very easy to generate static electricity. Therefore, the present invention studies the static electrification law of the elastic fabric conveying process, and thus adopts the isolation belt method to greatly avoid the occurrence of static electricity phenomena in the prior art.

[0008] The conductive material attached to the elastic fabric of the elastic electric heater comprises an anti-oxidation layer and a hydrophobic layer. This material is cut into a specific pattern and positioned between the upper and lower packaging portions. The conductive material attached to the fabric fibers of the elastic electric heater can be metal particles such as graphite particles, graphene particles, carbon nanotube particles, stainless steel particles, silver particles, copper particles, nickel particles, tin particles, or iron particles; the particle shapes can be spherical, needle-shaped, columnar, tubular, or linear.

[0009] Further preferably, the elastic fabric of the elastic electric heater is not limited to the number of layers, and the elastic electric heater is provided with holes for riveting at the positive input end and the negative output end of the electrode end, which correspond to the first hole and the second hole of the upper packaging part.

[0010] Furthermore, the upper packaging portion, elastic electric heating element, and lower packaging portion are all sheet-type structures, and the upper packaging portion, elastic electric heating element, and lower packaging portion are integrally formed by hot pressing. The bonding method can be to attach adhesive film, mesh adhesive, hole adhesive, or dispensing adhesive. Specifically, after the heating material is cut into a set pattern, it is riveted to the small holes (first hole and second hole) of the upper packaging portion using metal rivets (first metal rivets and second metal rivets). The upper packaging portion and the lower packaging portion are then pressed together to form an integral package, thereby realizing an elastic non-sensing heating sheet.

[0011] Furthermore, the first metal riveted part and the second metal riveted part of the electrode terminal are connected by riveting in the form of magnetic buckles or snap buckles.

[0012] According to another aspect of the present application, a method for manufacturing a wearable elastic heating sheet is provided, comprising:

[0013] An upper packaging part and a lower packaging part with a certain elastic restoring force are manufactured; the upper packaging part is provided with a first hole and a second hole;

[0014] Producing an elastic electric heating body with conductive properties and a certain elastic restoring force;

[0015] manufacturing a first metal riveted part and a second metal riveted part having good electrical conductivity;

[0016] The elastic electric heating body is provided with two holes corresponding to the positions of the first hole and the second hole of the upper packaging part;

[0017] Cut the elastic electric heating body into a predetermined shape and align its two holes with the first hole and the second hole of the upper packaging part, and first pass the first metal rivet or the second metal rivet through the first hole or the second hole of the upper packaging part, then through the hole of the elastic electric heating body and fix it by riveting;

[0018] The lower packaging part is aligned with the upper packaging part that has been riveted and fixed, and hot pressing is performed to complete the production of the wearable elastic heating sheet.

[0019] Furthermore, before hot pressing the lower packaging part to align with the riveted and fixed upper packaging part, gluing is performed between the upper and lower packaging parts. The gluing can be performed by attaching a glue film, mesh glue, hole glue or spot glue.

[0020] Furthermore, the first metal rivet is installed on the first hole of the upper packaging part as the positive input terminal, and the second metal rivet is installed on the second hole of the upper packaging part as the negative output terminal. The positive input terminal and the negative output terminal constitute a conductive loop.

[0021] Through the above scheme, the present invention uses a material with a certain elasticity as a whole, and finally realizes that the heating plate also has good elasticity and wearing comfort, which can realize the senseless wearing of smart wearables. The processing technology of the heating plate of the present invention is simple, which greatly reduces the production cost. At the same time, the heating plate of the present invention is corrosion-resistant and washable, meeting the daily use requirements of the product. It has a simple process, strong operability and high production efficiency. In addition, the wearable elastic heating plate of the present invention has high application flexibility, and can be designed according to different wearing parts. Heating plates of different sizes and powers have good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be better understood by referring to the following description in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to represent the same or similar components. The accompanying drawings, together with the following detailed description, are incorporated into and form a part of this specification and are used to further illustrate the preferred embodiments of the present invention and to explain the principles and advantages of the present invention.

[0023] In the picture:

[0024] Figure 1a is an overall schematic diagram of an elastic electric heating body according to a specific embodiment of the present invention;

[0025] Figure 1b for Figure 1a Schematic diagram of point A in FIG;

[0026] Figure 1c for Figure 1b Schematic diagram of point B in FIG.

[0027] Figure 2 A plan view of a wearable elastic heating sheet according to a specific embodiment of the present invention;

[0028] Figure 3 It is a plan view of the upper packaging portion of a specific embodiment of the present invention;

[0029] Figure 4 It is a plan view of the lower packaging portion of a specific embodiment of the present invention;

[0030] Figure 5 A plan view of an elastic electric heating body according to a specific embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of a riveted part of an electrode terminal according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0032] Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the sake of clarity, the drawings and descriptions omit the representation and description of components and processes that are not relevant to the present invention and are known to those of ordinary skill in the art.

[0033] In the description of the present invention, it should be understood that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, meaning, for example, fixed, removable, or integral; mechanical or electrical; direct or indirect through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0034] Example 1

[0035] The embodiment of the present invention provides a wearable elastic heating sheet, see Figure 1a 、 Figure 1b 、 Figure 1c 、 Figure 2-Figure 6 , the components corresponding to each reference numeral are as follows: 1 is the elastic electric heater, 2 is the upper packaging part, 3 is the lower packaging part, and 4 is the electrode end; 101 is the constituent yarn of the base material of the elastic electric heater, 102 is the conductive fiber on the yarn, 103 is the conductive particles, 104 is the hydrophobic layer, and 105 is the hole of the elastic electric heater; 401 and 402 are respectively the first metal rivet 401 and the second metal rivet 402 constituting the electrode end.

[0036] Specifically, the wearable elastic heating sheet of the present application includes an elastic electric heating body 1, an upper packaging part 2, a lower packaging part 3 and an electrode end 4. Figure 1a 、 Figure 1b 、 Figure 1c The elastic electric heating body 1 includes yarns 101 of a base material, conductive fibers 102, conductive particles 103, a hydrophobic layer 104, and holes 105 of the elastic heating body.

[0037] The elastic electric heating body 1 is an elastic fabric with a conductive layer, which is made of elastic fabric as a base material and a conductive material attached to the base material, and the conductive materials are in contact with each other to form a conductive network. During production, the elastic electric heating body is made by spraying conductive material particles on the elastic fabric, and then forming a hydrophobic antioxidant film on the surface through chemical treatment. Specifically, the elastic electric heating body is made by spraying conductive material particles on the elastic fabric, specifically, setting a plurality of parallel S-shaped isolation belts (whose length is not less than half of the length of the entire elastic fabric) in the middle position of the elastic fabric, and then spraying the conductive material particles on the elastic fabric, so that the conductive materials are in contact with each other to form a conductive network with intervals and without interruption. The setting of the isolation belt can be achieved by first setting an S-shaped isolation piece to block it, and then removing the isolation piece after spraying; it can also be achieved by directly setting an S-shaped non-conductive material, which is selected according to the actual process conditions. In the prior art, full yarn laying is generally used to achieve this, but this method is very easy to generate static electricity. Therefore, the present invention studies the static charging law during the elastic fabric conveying process, and thus adopts an isolation belt method to greatly avoid the occurrence of static electricity phenomena in the prior art.

[0038] Among them, the conductive material is metal particles such as graphite particles, graphene particles, carbon nanotube particles, stainless steel particles, silver particles, copper particles, nickel particles, tin particles or iron particles; its particle shape can be spherical particles, needle-shaped particles, columnar particles, tubular particles, linear particles and the like.

[0039] The upper packaging part 2 and the lower packaging part 3 are made of materials with a certain elastic recovery. In particular, the upper packaging part 2 needs to be provided with at least two small holes for riveting metal parts. In this embodiment, the upper packaging part is provided with two holes, 201 is the first hole, and 202 is the second hole. The elastic electric heater 1 is a material coated with metal particles and having good electrical conductivity and a certain elastic recovery. The material is cut into a certain pattern and arranged between the upper packaging part 2 and the lower packaging part 3; the electrode end 4 includes at least a positive input terminal and a negative output terminal, and is composed of metal parts with good electrical conductivity riveted together. The above components are all sheet-type structures, and the combination of the upper packaging part 2 and the lower packaging part 3 includes but is not limited to attaching a film, mesh glue, hole glue, and dispensing glue. The elastic electric heater 1 is encapsulated by methods including but not limited to hot pressing. Specifically, after the elastic electric heater 1 is cut into a predetermined pattern, it is then riveted to the first and second holes 201, 202 of the upper packaging portion 2 using first and second metal rivets. The upper packaging portion 2 and the lower packaging portion 3 are then pressed together to form an integrated package, thereby achieving an elastic, non-inductive heating element. The elastic electric heater 1 has a U-shaped design.

[0040] The first metal rivet is mounted on the first hole of the upper package portion 2 as the positive input terminal, and the second metal rivet is mounted on the second hole of the upper package portion 2 as the negative output terminal. The first and second metal rivets of the electrode terminal 4 are riveted using a magnetic buckle or snap fastener.

[0041] Example 2

[0042] An embodiment of the present invention provides a method for manufacturing a wearable elastic heating sheet, comprising:

[0043] An upper packaging part 2 and a lower packaging part 3 with a certain elastic restoring force are manufactured; a first hole and a second hole are provided on the upper packaging part 2;

[0044] Producing an elastic electric heating body 1 with conductive properties and a certain elastic restoring force;

[0045] manufacturing a first metal riveted part and a second metal riveted part having good electrical conductivity;

[0046] The elastic electric heating body 1 is provided with two holes corresponding to the positions of the first hole and the second hole of the upper packaging part 2;

[0047] Cut the elastic electric heater 1 into a predetermined shape and align its two holes with the first hole and the second hole of the upper packaging part 2, and first pass the first metal rivet or the second metal rivet through the first hole or the second hole of the upper packaging part 2, and then through the hole of the elastic electric heater 1 and fix it by riveting;

[0048] The lower packaging part 3 is aligned with the upper packaging part 2 which has been fixed by riveting and hot pressing to complete the production of the wearable elastic heating sheet.

[0049] Before hot pressing the lower packaging part 3 to align with the riveted upper packaging part 2 and fix it, gluing is performed between the upper packaging part 2 and the lower packaging part 3. The gluing can be performed by attaching a film, mesh glue, hole glue or spot glue.

[0050] The first metal rivet is installed on the first hole of the upper packaging part 2 as the positive input terminal, and the second metal rivet is installed on the second hole of the upper packaging part 2 as the negative output terminal. The positive input terminal and the negative output terminal form a conductive loop.

[0051] During design, the elastic electric heater can be designed with heating plates of different shapes, sizes, dimensions, and thicknesses according to functional requirements. It can also be designed with heating plates of corresponding patterns and heating power according to the heating position and heating effect requirements. After the elastic electric heater cut into a specific shape is aligned with the position of the small hole of the upper packaging part, the metal riveting component 1 is first passed through the small hole of the upper packaging part and then through the small hole of the elastic electric heater. After covering the component 2, it is riveted and pressed. Then the lower packaging part is aligned with the riveted upper packaging part and hot pressed to complete the production of the wearable elastic heating plate. Its processing technology is simple and reduces production costs. The process is simple, the operability is strong, and the production efficiency is high. The overall use of materials with a certain degree of elasticity ultimately achieves that the heating plate also has good elasticity and is comfortable to wear. The above-mentioned elastic electric heater has high application flexibility and can be designed to have heating plates of different sizes and powers according to different wearing parts. In addition, the elastic electric heater is U-shaped, which heats quickly and evenly.

[0052] It should be emphasized that the term "include / comprises" when used herein refers to the existence of features, elements, steps or components, but does not exclude the existence or addition of one or more other features, elements, steps or components.

[0053] Although the present invention has been disclosed above through the description of specific embodiments of the present invention, it should be understood that all the above embodiments and examples are illustrative rather than restrictive. Those skilled in the art may devise various modifications, improvements, or equivalents of the present invention within the spirit and scope of the appended claims. Such modifications, improvements, or equivalents should also be considered to be within the scope of protection of the present invention.

Claims

1. A wearable elastic heating sheet, characterized by: It includes an upper packaging part, an elastic electric heating body and a lower packaging part stacked in sequence, and an electrode terminal electrically connected to the elastic electric heating body; Wherein, the upper packaging part and the lower packaging part both have a certain elastic restoring force, the elastic electric heating body has conductive properties and a certain elastic restoring force, and is arranged between the upper packaging part and the lower packaging part; The electrode terminal includes a first metal rivet and a second metal rivet with good electrical conductivity. The upper packaging portion is provided with a first hole and a second hole matching the first metal rivet and the second metal rivet. The first metal rivet is mounted on the first hole of the upper packaging portion as a positive input terminal, and the second metal rivet is mounted on the second hole of the upper packaging portion as a negative output terminal. The elastic electric heating element is an elastic fabric with a conductive layer. Specifically, the elastic electric heating element is realized by using the elastic fabric as a base material and attaching a conductive material to the base material. The conductive materials are in contact with each other to form a conductive network. Among them, the elastic electric heating body is made by spraying conductive material particles on elastic fabric. Specifically, multiple parallel S-shaped isolation belts are set in the middle position of the elastic fabric, and then the conductive material particles are sprayed on the elastic fabric, so that the conductive materials contact each other to form a conductive network with intervals and no interruption.

2. The wearable elastic heating sheet according to claim 1, characterized in that: The elastic electric heating body is provided with holes for riveting at the positions of the positive input end and the negative output end of the electrode terminal, and the holes correspond to the first hole and the second hole of the upper packaging part.

3. The wearable elastic heating sheet according to claim 1, characterized in that: An anti-oxidation layer and a hydrophobic layer are provided on the conductive material.

4. The wearable elastic heating sheet according to claim 1, characterized in that: The conductive material attached to the elastic fabric of the elastic electric heating body is graphite particles, graphene particles, carbon nanotube particles, stainless steel particles, silver particles, copper particles, nickel particles, tin particles or iron particles; the particle shape of the conductive material is spherical particles, needle-shaped particles, columnar particles, tubular particles or linear particles.

5. The wearable elastic heating sheet according to claim 1, characterized in that: The elastic fabric is a fabric with a certain elastic recovery, and its structure includes but is not limited to knitting and woven, and its composition is one or more of cotton, linen, polyester, nylon, spandex, acrylic and chemical fiber.

6. The wearable elastic heating sheet according to claim 1, characterized in that: The upper packaging part, the elastic electric heating body and the lower packaging part are all sheet-type structures, and the upper packaging part, the elastic electric heating body and the lower packaging part are formed into one piece by hot pressing.

7. The wearable elastic heating sheet according to claim 1, characterized in that: The first metal rivet and the second metal rivet of the electrode terminal are riveted in a magnetic buckle or snap buckle manner.

8. A method for manufacturing a wearable elastic heating sheet, comprising: Making an upper packaging part and a lower packaging part with a certain elastic restoring force; The upper packaging portion is provided with a first hole and a second hole; Producing an elastic electric heating body with conductive properties and a certain elastic restoring force; manufacturing a first metal riveted part and a second metal riveted part having good electrical conductivity; The elastic electric heater is provided with two holes corresponding to the first hole and the second hole positions of the upper packaging part; the elastic electric heater is an elastic fabric with a conductive layer. Specifically, the elastic electric heater is realized by using the elastic fabric as a base material, and a conductive material is attached to the base material, and the conductive materials are in contact with each other to form a conductive network; wherein the elastic electric heater is made by spraying conductive material particles on the elastic fabric, specifically: a plurality of parallel S-shaped isolation strips are provided in the middle position of the elastic fabric, and then the conductive material particles are sprayed on the elastic fabric, so that the conductive materials are in contact with each other to form a conductive network with intervals and without interruption; Cut the elastic electric heating body into a predetermined shape and align its two holes with the first hole and the second hole of the upper packaging part, and first pass the first metal rivet or the second metal rivet through the first hole or the second hole of the upper packaging part, then through the hole of the elastic electric heating body and fix it by riveting; The lower packaging part is aligned with the upper packaging part that has been riveted and fixed, and hot pressing is performed to complete the production of the wearable elastic heating sheet.

9. The method for manufacturing a wearable elastic heating sheet according to claim 8, characterized in that: Before hot pressing the lower packaging part to align with the riveted and fixed upper packaging part, gluing is performed between the upper and lower packaging parts. The gluing method is to attach a glue film, mesh glue, hole glue or glue.

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