Composite conductive cotton material
By introducing a flexible conductive fabric additional layer and a spring structure into the conductive cotton material, the uniform distribution of filler is achieved by using external extrusion pressure, which solves the problem of filler gradient distribution caused by the porous structure of polyurethane foam and improves the uniformity of conductivity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YUEQING HEXING ELECTRONICS CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-14
AI Technical Summary
In existing conductive cotton materials, the porous structure of polyurethane foam causes fillers to accumulate on the surface, resulting in insufficient content inside and uneven conductivity.
By fixing a flexible conductive fabric additional layer to the base layer and utilizing the combined structure of the cover layer, spring and spacer, the filler is evenly distributed under external extrusion. The cover layer drives the flexible guide rod to move, which in turn pushes the vertical rod to link the cotton fiber transition layer, breaking up the filler aggregate on the surface. The dynamic extrusion pressure is maintained by the energy release of the spring, causing the filler to migrate into the internal pores.
This solves the problems of filler accumulation on the surface and insufficient content inside, thus improving the conductivity uniformity of conductive cotton.
Smart Images
Figure CN224501507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conductive cotton technology, and in particular to a composite conductive cotton material. Background Technology
[0002] Conductive cotton is a type of flexible porous material that is given conductive function through a composite process. Its typical structure is composed of a matrix layer such as polyurethane foam or non-woven cotton felt and a conductive functional layer such as a metal plating or carbon-based coating. According to industry standards (such as ASTM D4935), conductive cotton must have a surface resistivity of ≤100Ω / sq.
[0003] However, in the existing technology, because polyurethane foam has an interconnected porous network structure, the pore size distribution may vary from the surface to the interior. When carbon nanotubes are filled using mechanical stirring or solution mixing, the filler is more likely to accumulate in the pores or large pore areas of the foam surface, while the filler content in the fine pore areas inside is insufficient, forming a gradient distribution with strong conductivity on the surface and weak conductivity inside, which affects the conductivity performance. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a composite conductive cotton material.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a composite conductive cotton material, further comprising:
[0006] A base layer, on which a flexible conductive fabric supplementary layer is fixedly connected, a cover layer is slidably connected to the flexible conductive fabric supplementary layer, a spring is fixedly connected to the cover layer, a partition layer is fixedly connected to the spring, and a top layer is fixedly connected to the flexible conductive fabric supplementary layer.
[0007] In a preferred embodiment, an inner sliding plate is slidably connected to the base layer, and a vertical rod is slidably connected to the inner sliding plate.
[0008] In a preferred embodiment, a cotton fiber transition layer is fixedly connected to the vertical rod, and the cotton fiber transition layer is placed inside a flexible conductive fabric additional layer.
[0009] In a preferred embodiment, the flexible conductive fabric additional layer has a slot, the cover layer is slidably connected to the slot in the flexible conductive fabric additional layer, a flexible conductor rod is fixedly connected to the vertical rod, the cover layer has an inclined slot, and the flexible conductor rod is slidably connected to the inclined slot in the cover layer.
[0010] In a preferred embodiment, a slot is provided on the side of the cover layer near the vertical rod, and the vertical rod is slidably connected in the slot on the cover layer.
[0011] In a preferred embodiment, the top layer is connected to the outer wall of the flexible conductive fabric additional layer, and a flexible sliding strip is fixedly connected to the vertical rod, the flexible sliding strip being slidably connected within the flexible conductive fabric additional layer.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] This invention achieves uniform distribution of filler under external extrusion. The cover layer slides down, driving the flexible guide rod to move along the inclined groove, converting the vertical displacement into a lateral driving force. This force pushes the vertical rod, along with the cotton fiber transition layer, to swing within the flexible conductive fabric additional layer, breaking up the conductive filler aggregated on the surface. Simultaneously, the cover layer compresses the spring, and the interlayer is subjected to a reaction force to progressively compact the base foam, forcing the filler to migrate into the internal pores. During continuous extrusion, the vertical rod presses down on the inner sliding plate to lock the foam boundary and prevent filler leakage. The spring releases its stored energy to maintain dynamic extrusion pressure, driving the filler to penetrate the pore size gradient zone. This solves the problem of filler surface accumulation and insufficient internal content caused by the porous structure of polyurethane foam in the prior art, thus improving conductivity uniformity. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of a composite conductive cotton material provided by this utility model.
[0015] Figure 2 This is a schematic diagram showing the position of the cotton fiber transition layer in a composite conductive cotton material provided by this utility model.
[0016] Figure 3 This is a schematic diagram showing the overall structure of a composite conductive cotton material provided by this utility model.
[0017] Figure 4 A schematic diagram showing the position of the interlayer in a composite conductive cotton material provided by this utility model.
[0018] Figure 5 A schematic diagram showing the positions of the covering layer and inner sliding plate of a composite conductive cotton material provided by this utility model.
[0019] Legend:
[0020] 1. Base layer; 2. Top layer; 3. Flexible conductive fabric additional layer; 4. Cotton fiber transition layer; 5. Flexible sliding strip; 6. Flexible conductor rod; 7. Spring; 8. Partition layer; 9. Covering layer; 10. Inner sliding plate; 11. Vertical rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figure 1-5 As shown, this utility model provides a technical solution: a composite conductive cotton material, which further includes:
[0023] A base layer 1 is fixedly connected to a flexible conductive fabric supplementary layer 3. A cover layer 9 is slidably connected to the flexible conductive fabric supplementary layer 3. A spring 7 is fixedly connected to the cover layer 9. A partition layer 8 is fixedly connected to the spring 7. A top layer 2 is fixedly connected to the flexible conductive fabric supplementary layer 3.
[0024] This invention achieves uniform distribution of filler under external extrusion. The cover layer 9 slides down, driving the flexible guide rod 6 to move along the inclined groove, converting the vertical displacement into a lateral driving force. This force pushes the vertical rod 11, along with the cotton fiber transition layer 4, to swing within the flexible conductive fabric additional layer 3, breaking up the conductive filler aggregated on the surface. Simultaneously, the cover layer 9 compresses the spring 7, and the partition layer 8 is subjected to a reaction force to progressively compact the base layer 1 foam, forcing the filler to migrate into the internal pores. During continuous extrusion, the vertical rod 11 presses down on the inner sliding plate 10 to lock the foam boundary and prevent filler leakage. The spring 7 stores and releases energy to maintain dynamic extrusion pressure, driving the filler to penetrate the pore size gradient zone. This solves the problem of filler surface accumulation and insufficient internal content caused by the porous structure of polyurethane foam in the prior art, thereby improving the uniformity of conductivity.
[0025] like Figures 4 to 5 As shown, an inner slide plate 10 is slidably connected to the base layer 1, and a vertical rod 11 is slidably connected to the inner slide plate 10. The cover layer 9 slides a compression spring 7, and the partition layer 8 transmits the extrusion pressure to compact the filler migration channel.
[0026] like Figures 1 to 3 As shown, a cotton fiber transition layer 4 is fixedly connected to the vertical rod 11. The cotton fiber transition layer 4 is placed inside the flexible conductive fabric additional layer 3. The vertical rod 11 (anodized aluminum tube) presses down on the inclined surface of the inner sliding plate 10 and slides inward to lock the boundary of the base layer 1 (polyurethane foam) to prevent lateral leakage of the filler.
[0027] A slot is formed on the flexible conductive fabric additional layer 3, and the cover layer 9 is slidably connected to the slot in the flexible conductive fabric additional layer 3. A flexible conductor rod 6 (gold-plated nickel-titanium alloy wire) is fixedly connected to the vertical rod 11. An inclined slot is formed on the cover layer 9, and the flexible conductor rod 6 is slidably connected to the inclined slot on the cover layer 9.
[0028] When the cover layer 9 moves downward, the inclined groove pushes the flexible guide rod 6 to convert the vertical pressure into horizontal displacement, controlling the lateral movement of the vertical rod 11 and avoiding excessive disturbance that could damage the conductive network material. A groove is provided on the side of the cover layer 9 (molybdenum disulfide solid lubricating coating) near the vertical rod 11. The vertical rod 11 is slidably connected in the groove on the cover layer 9. The groove limits the movement trajectory of the vertical rod 11 to ensure that the compaction direction is strictly perpendicular to the foam layer structure, preventing lateral displacement that could lead to uneven local pressure.
[0029] The top layer 2 is connected to the outer wall of the flexible conductive fabric additional layer 3. A flexible sliding strip 5 is fixedly connected to the vertical rod 11. The flexible sliding strip 5 (graphene / silicone composite material) is slidably connected inside the flexible conductive fabric additional layer 3. The flexible sliding strip 5 buffers the stress between the layers to prevent the additional layer from rubbing and breaking with the cotton fiber transition layer 4. The top layer 2 is hydrophobically encapsulated to prevent sweat from corroding the conductive filler material.
[0030] Working principle:
[0031] like Figure 1-5 As shown, when the conductive cotton is subjected to external pressure (such as when it is worn close to the body), the covering layer 9 slides down, causing the vertical rod 11 to slide down, which causes the flexible conductor rod 6 to slide in the inclined groove on the covering layer 9, causing the covering layer 9 to be moved inward, compressing the spring 7, causing the partition layer 8 on the spring 7 to be moved inward, gradually squeezing the conductive cotton, making its interior compact.
[0032] During the wearing process, the vertical rod 11 presses down on the inner slide plate 10. The surface of the inner slide plate 10 is set as an inclined surface, so the inner slide plate 10 will be squeezed and slid inward to prevent the conductive cotton from coming off from the bottom of the base layer 1.
[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A composite conductive cotton material, characterized in that, include: A base layer (1) is fixedly connected to the base layer (1), a flexible conductive fabric supplementary layer (3) is slidably connected to the flexible conductive fabric supplementary layer (3), a spring (7) is fixedly connected to the cover layer (9), a partition layer (8) is fixedly connected to the spring (7), and a top layer (2) is fixedly connected to the flexible conductive fabric supplementary layer (3).
2. The composite conductive cotton material according to claim 1, characterized in that: An inner slide plate (10) is slidably connected to the base layer (1), and a vertical rod (11) is slidably connected to the inner slide plate (10).
3. The composite conductive cotton material according to claim 2, characterized in that: A cotton fiber transition layer (4) is fixedly connected to the vertical rod (11), and the cotton fiber transition layer (4) is placed inside the flexible conductive fabric additional layer (3).
4. The composite conductive cotton material according to claim 2, characterized in that: The flexible conductive fabric additional layer (3) has a slot, the cover layer (9) is slidably connected to the slot in the flexible conductive fabric additional layer (3), the vertical rod (11) is fixedly connected to a flexible conductor rod (6), the cover layer (9) has an inclined groove, and the flexible conductor rod (6) is slidably connected to the inclined groove in the cover layer (9).
5. The composite conductive cotton material according to claim 1, characterized in that: A slot is provided on the side of the cover layer (9) near the vertical rod (11), and the vertical rod (11) is slidably connected in the slot on the cover layer (9).
6. The composite conductive cotton material according to claim 5, characterized in that: The top layer (2) is connected to the outer wall of the flexible conductive fabric supplementary layer (3), and a flexible sliding strip (5) is fixedly connected to the vertical rod (11). The flexible sliding strip (5) is slidably connected inside the flexible conductive fabric supplementary layer (3).