A self-generating fabric, insole, and self-powered shoes
The self-generating fabric with a three-dimensional interlocking structure converts mechanical energy into electrical energy, solving the comfort and portability issues caused by the use of batteries in smart insoles. It also improves flexibility and durability, making it suitable for self-powered insoles and shoes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 361 DEGREES (CHINA) CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-06-30
AI Technical Summary
Existing smart insoles use batteries as a power source, which affects wearing comfort and portability. Furthermore, the manufacturing process is complex and can easily cause skin irritation and poor durability.
The self-generating fabric, which adopts a three-dimensional interlocking structure, converts mechanical energy into electrical energy by generating a charge difference when positive and negative friction materials come into contact, avoiding chemical processing and integrating into self-powered insoles and shoes.
It improves wearing comfort and portability, avoids discomfort caused by chemical reagents, has good electromechanical conversion capabilities and integrity, is suitable for emergency rescue scenarios, and reduces the frequency of maintenance and replacement.
Smart Images
Figure CN224430853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile technology, and in particular to a self-generating fabric, insole, and self-generating shoes. Background Technology
[0002] Current smart insoles typically use lithium-ion batteries or supercapacitors as power sources. Due to limitations in battery space and capacity, they require frequent charging, regular maintenance, and replacement to maintain normal operation. Furthermore, the batteries are relatively rigid and hard, which reduces comfort, lightweight design, and portability when placed under the foot, hindering normal movement and contradicting the concept of flexible wearable electronic textiles.
[0003] Most current smart insoles are manufactured using chemical processes, which are complex and time-consuming, and can easily cause skin irritation. Furthermore, the method of stacking functional materials results in poor overall integrity and durability, and delamination is prone to occur under prolonged use. Summary of the Invention
[0004] The purpose of this invention is to provide a self-generating fabric, insole, and self-powered shoe to solve the problem that using batteries as a power source for smart insoles affects wearing comfort and portability.
[0005] To achieve the above objectives, this utility model discloses a self-generating fabric, comprising: a fabric body, wherein the fabric body is a three-dimensional interlocking structure fabric woven from electrode material, positive friction material and negative friction material, wherein when the positive friction material and negative friction material come into contact with each other, the two materials generate charges of opposite polarities on their surfaces; the positive friction material and negative friction material interweave to form the inner layer of the fabric body, and the electrode material is woven into the surface layer of the fabric body.
[0006] Preferably, the electrode material is silver-plated nylon yarn, stainless steel yarn, or copper fiber; the positive friction material is wool yarn, nylon yarn, or cotton yarn; and the negative friction material is PTFE yarn, polyimide yarn, or polyethylene yarn.
[0007] Preferably, the electrode material is silver-plated nylon yarn, the positive friction material is nylon yarn or wool yarn, the negative friction material is PTFE yarn, the fineness of the silver-plated nylon yarn is 70 D-220 D, the fineness of the nylon yarn or wool yarn is 150 D-220 D, and the fineness of the PTFE yarn is 400 D-1300 D.
[0008] Preferably, the main body of the fabric is woven from warp and weft yarns into a multi-layer structure. The warp and weft yarns interweave to form multiple weaving points. Each weaving point contains two warp yarns and one weft yarn. The two warp yarns are bent and undulating in opposite directions to form an opening. The weft yarns shuttle through the openings of the warp yarns, and adjacent weft yarns are arranged in parallel without bending.
[0009] Preferably, the main body of the fabric includes an uppermost layer, a lowermost layer, and a plurality of intermediate layers, wherein the intermediate layers are disposed between the uppermost layer and the lowermost layer; the warp and weft yarns of the uppermost layer are electrode materials; the warp yarns of the intermediate layers are negative friction materials, and the weft yarns are positive friction materials; the warp and weft yarns of the lowermost layer are electrode materials.
[0010] Preferably, the main body of the fabric includes an uppermost layer, a lowermost layer, and a plurality of intermediate layers, wherein the intermediate layers are disposed between the uppermost layer and the lowermost layer; the warp and weft yarns of the uppermost layer are electrode materials; the warp yarns of the intermediate layers are positive friction materials, and the weft yarns are negative friction materials; the warp and weft yarns of the lowermost layer are electrode materials.
[0011] Preferably, the main body of the fabric has six layers.
[0012] This utility model also provides an insole, which includes an insole surface layer, an insole bottom layer and the above-mentioned fabric body, wherein the fabric body is disposed between the insole surface layer and the insole bottom layer.
[0013] Preferably, the insole surface layer is made of textile material combined with EVA material, and the insole bottom layer is made of high-density EVA sponge material; the insole surface layer, the fabric body and the insole bottom layer are fixedly connected by lamination, sewing or gluing.
[0014] This invention also provides a self-powered shoe, which includes the insole described above.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model adopts an all-fabric structure and uses special materials to generate electricity through friction instead of traditional batteries. It has good flexibility and wearing comfort, and is not treated with chemical processes, thus avoiding the drawbacks of itching and discomfort caused by contact between chemical reagents and human skin.
[0017] 2. This invention is based on the working principle of a triboelectric nanogenerator, possessing excellent electromechanical conversion capabilities. It collects widely distributed and minute mechanical energy and converts it into electrical energy, which can power LEDs and charge capacitors, making it suitable for emergency rescue scenarios. Furthermore, it does not require periodic disassembly, reducing the complexity of maintenance and replacement.
[0018] 3. A woven fabric with a three-dimensional interlocking structure is selected as the self-powered material. It has good integrity, lightness and flexibility, and high integration. Through subsequent research and development and expansion, it can be used as a self-powered foot pressure sensor.
[0019] 4. Compared with planar structures, three-dimensional fabric structures improve stability, interlayer performance, mechanical properties and fatigue resistance, and have good overall integrity.
[0020] 5. It does not employ complex chemical processes, thus avoiding a complicated and time-consuming preparation process. The process is relatively simple and low-cost.
[0021] 6. It replaces traditional rigid batteries, improving wearing comfort on the one hand, and avoiding the irreversible environmental impact caused by electrolyte leakage in rigid batteries on the other hand, which is in line with the current concept of sustainable development. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the warp cross-section of the self-generating fabric provided in a specific embodiment of this utility model;
[0023] Figure 2 This is a pattern diagram of the self-generating fabric provided in a specific embodiment of this utility model;
[0024] Figure 3 This is a structural schematic diagram of the insole provided in a specific embodiment of this utility model.
[0025] Explanation of symbols for main components:
[0026] 100. Insole surface layer; 200. Fabric body; 300. Insole bottom layer. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0028] Example 1
[0029] like Figures 1-2This invention provides a self-generating fabric, comprising: a fabric body 200, which is a three-dimensional interlocking structure fabric woven from electrode material, positive friction material, and negative friction material. When the positive and negative friction materials come into contact, equal amounts of oppositely charged charges are generated on their surfaces. The positive and negative friction materials interweave to form the inner layer of the fabric body 200. The electrode material is integrally woven into the surface layer of the fabric body 200 through a weaving process. When the positive and negative friction materials come into contact and separate under external force, a potential difference is generated between the positive and negative electrode layers under the action of electrostatic induction. The potential difference drives the charge to move in the external circuit to generate an electrical signal, thereby realizing the conversion of mechanical energy into electrical energy. Using an all-fabric structure, it replaces traditional rigid batteries with triboelectric power generation through special materials, possessing good flexibility and wearing comfort. Furthermore, it is not chemically treated, avoiding the drawbacks of itching and discomfort caused by contact between chemical reagents and human skin.
[0030] It should be noted that, Figure 2 This is a pattern diagram of a self-generating fabric. The black squares represent warp weft points, and the white squares represent weft weft points. This pattern diagram clearly shows the interlacing pattern of the warp and weft yarns.
[0031] In this embodiment, the electrode material is silver-plated nylon yarn, the positive friction material is wool yarn, and the negative friction material is PTFE yarn. The silver-plated nylon yarn has a yarn fineness of 70 D. In this embodiment, three strands of 70D silver-plated nylon yarn are twisted together to serve as the electrode material. The wool yarn has a yarn fineness of 187.5 D, and the PTFE yarn has a yarn fineness of 400 D. In other embodiments, the electrode material can also be conductive materials such as stainless steel yarn or copper fiber. The positive friction material can also be other materials with strong electron-losing ability, such as nylon yarn or cotton yarn. The negative friction material can also be other materials with strong electron-gaining ability, such as polyimide yarn or polyethylene yarn.
[0032] The main body of the fabric 200 is a multi-layer structure woven from warp and weft yarns. The warp and weft yarns interweave to form multiple weaving points. Each weaving point contains two warp yarns and one weft yarn. The two warp yarns are bent and undulating in opposite directions to form an opening. The weft yarns shuttle through the openings of the warp yarns, and adjacent weft yarns are arranged in parallel without bending.
[0033] The main fabric 200 includes an uppermost layer, a lowermost layer, and multiple intermediate layers, with the intermediate layers positioned between the uppermost and lowermost layers. The warp and weft yarns of the uppermost layer are electrode materials; the warp yarns of the intermediate layers are negative friction materials, and the weft yarns are positive friction materials; the warp and weft yarns of the lowermost layer are electrode materials.
[0034] In this embodiment, the main body of the fabric 200 consists of six layers, namely 12 warp layers, requiring 12 heddle frames. Silver-plated nylon yarns are threaded into heddle frames 1, 3, 10, and 12, and PTFE yarns are threaded into heddle frames 2, 4, 5, 6, 7, 8, 9, and 11.
[0035] A multi-shuttle weft insertion method is employed, with each layer of fabric using a different shuttle for weft insertion, totaling six shuttles. The first shuttle inserts silver-plated nylon yarn, the second and third shuttles insert wool yarn, the fourth and fifth shuttles insert wool yarn, and the sixth shuttle inserts silver-plated nylon yarn. The weft insertion sequence can be either from the inside out or from top to bottom, or at least one of these two methods.
[0036] Example 2
[0037] The difference between this embodiment and Embodiment 1 is that the fabric body 200 includes an uppermost layer, a lowermost layer, and multiple intermediate layers, with the intermediate layers positioned between the uppermost and lowermost layers. The warp and weft yarns of the uppermost layer are electrode materials; the warp yarns of the intermediate layers are positive friction materials, and the weft yarns are negative friction materials; the warp and weft yarns of the lowermost layer are electrode materials. In this embodiment, the warp yarns are replaced with positive friction materials, and the weft yarns with negative friction materials. After the positive and negative friction materials come into contact, equal amounts of charges with opposite polarities are generated on the surfaces of the two materials.
[0038] Example 3
[0039] like Figure 3 The difference between this embodiment and Embodiment 1 is that: an insole, characterized in that: it includes an insole surface layer 100, an insole bottom layer 300 and a fabric body 200, wherein the fabric body 200 is disposed between the insole surface layer 100 and the insole bottom layer 300.
[0040] In this embodiment, the insole surface layer 100 is made of textile material combined with EVA material. Of course, the insole surface layer 100 can also be made of other conventional insole materials. The insole bottom layer 300 is made of high-density EVA sponge material. The insole surface layer 100, the self-generating fabric, and the insole bottom layer 300 are fixedly connected by lamination, sewing, or gluing.
[0041] The upper insole 100 and the lower insole 300 provide elasticity, softness, comfort, and compression resistance, as well as address the issues of sweat absorption, breathability, and shock absorption; the self-generating fabric is made of a three-dimensional interlocking woven fabric that can convert the mechanical energy of human movement into electrical energy to power microelectronic devices.
[0042] Example 4
[0043] The difference between this embodiment and Embodiment 1 is that this embodiment is a self-powered shoe, characterized by including an insole. The self-powered insole can provide power to the microelectronic devices on the shoe.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A self-generating fabric, characterized in that, include: The main body of the fabric (200) is a three-dimensional interlocking structure fabric woven from electrode material, positive friction material and negative friction material. When the positive friction material and the negative friction material come into contact with each other, the two materials generate charges of opposite polarities on their surfaces. The positive friction material and the negative friction material are interwoven to form the inner layer of the fabric body (200), and the electrode material is woven into the surface layer of the fabric body (200).
2. The self-generating fabric of claim 1, wherein: The electrode material is silver-plated nylon yarn, stainless steel yarn, or copper fiber; the positive friction material is wool yarn, nylon yarn, or cotton yarn; and the negative friction material is PTFE yarn, polyimide yarn, or polyethylene yarn.
3. The self-generating fabric of claim 2, wherein: The electrode material is silver-plated nylon yarn, the positive friction material is nylon yarn or wool yarn, the negative friction material is PTFE yarn, the fineness of the silver-plated nylon yarn is 70D-220D, the fineness of the nylon yarn or wool yarn is 150D-220D, and the fineness of the PTFE yarn is 400D-1300D.
4. A self-generating fabric according to any one of claims 1 to 3, wherein: The main body of the fabric (200) is woven from warp and weft yarns into a multi-layer structure. The warp and weft yarns interweave to form multiple weaving points. Each weaving point contains two warp yarns and one weft yarn. The two warp yarns are bent and undulating in opposite directions to form an opening. The weft yarns shuttle through the openings of the warp yarns. Adjacent weft yarns are arranged in parallel without bending.
5. A self-generating fabric according to claim 4, wherein: The main body of the fabric includes an uppermost layer, a lowermost layer, and multiple intermediate layers, wherein the intermediate layers are disposed between the uppermost layer and the lowermost layer; The uppermost warp and weft yarns are electrode materials; the middle layer warp yarns are negative friction materials and the weft yarns are positive friction materials; the lowermost warp and weft yarns are electrode materials.
6. The self-generating fabric according to claim 4, characterized in that: The main body of the fabric includes an uppermost layer, a lowermost layer, and multiple intermediate layers, wherein the intermediate layers are disposed between the uppermost layer and the lowermost layer; The uppermost warp and weft yarns are electrode materials; the middle layer warp yarns are positive friction materials and the weft yarns are negative friction materials; the lowermost warp and weft yarns are electrode materials.
7. The self-generating fabric according to claim 4, characterized in that: The main body of the fabric consists of six layers.
8. A shoe insole, characterized in that: It includes an insole top layer (100), an insole bottom layer (300), and a fabric body (200) as described in any one of claims 1-7, wherein the fabric body (200) is disposed between the insole top layer (100) and the insole bottom layer (300).
9. The insole according to claim 8, characterized in that: The insole surface layer (100) is made of textile material combined with EVA material, and the insole bottom layer (300) is made of high-density EVA sponge material; the insole surface layer (100), the fabric body (200) and the insole bottom layer (300) are fixedly connected by lamination, sewing or gluing.
10. A self-powered shoe, characterized in that: Including the insole as described in any one of claims 8-9.