Flexible synaptic fabric with pressure sensing function
By combining a double-layer tensile braided layer with a flexible thin-film pressure sensor, a fully enclosed structure is formed, which solves the problem of poor protective effect of existing pressure monitoring fabrics and achieves high-precision and high-sensitivity pressure monitoring.
Patent Information
- Application Number
- CN202511305465.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2025-11-18
AI Technical Summary
Existing pressure monitoring fabrics offer poor protection, sensors are easily damaged, and sensitivity is insufficient, making it impossible to achieve high-precision monitoring of minute pressures.
The design combines a double-layer tensile braided layer with a flexible thin-film pressure sensor to form a fully enclosed structure. Combined with flexible deformation support components and integrated wiring harness, this improves the sensor's protection and sensitivity.
It enhances the sensor's protection, improves the accuracy and sensitivity of pressure monitoring, extends its service life, and is suitable for high-precision pressure monitoring scenarios.
Smart Images
Figure CN120963167A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of pressure monitoring fabric, and particularly relates to a flexible synapse fabric with pressure sensing. BACKGROUND
[0002] As a kind of intelligent material with both flexibility and sensing function, pressure monitoring fabric has a broad application prospect in many fields due to its good conformability and dynamic response capability. It can be directly attached to the surface of human skin to monitor physiological signals such as pulse and respiration; it can also be integrated into the contact part of a robot or a prosthesis to realize fine force perception; it can also be laid on a mattress, a seat, a car seat cushion and other home and transportation scenes to complete real-time detection and analysis of pressure distribution. Its core working principle is based on the piezoresistive effect: when external pressure acts on the flexible film or active functional layer in the fabric, the material will undergo geometric deformation and produce stress change, which will in turn cause the regular increase or decrease of its own resistance value. Through the collection and analysis of the resistance signal, the quantitative perception of the pressure parameter can be realized, and some advanced products have already achieved millimeter-level spatial resolution.
[0003] At present, most of the pressure monitoring fabrics on the market adopt a planar laminated structure design, which is mainly made by integrating a flexible piezoresistive sensor array on the surface of a flexible substrate material in the form of weaving, attaching or printing. Although the existing pressure monitoring fabric has made certain progress, there are still two key technical bottlenecks: 1. Sensitivity needs to be improved: due to the planar structure design, pressure is prone to dispersion and loss during transmission, which makes the flexible film or active functional layer less sensitive to small pressure changes, and it is difficult to accurately capture low-amplitude and high-frequency dynamic pressure signals, limiting its application in high-precision sensing scenarios.
[0004] 2. Poor protection effect: the existing fabric generally lacks a special protective structure for flexible film pressure sensors, and the sensors are directly exposed to the external environment, which are easily damaged by factors such as friction, extrusion and sweat erosion, significantly shortening the service life of the fabric, increasing the use cost, and seriously restricting its large-scale popularization and application. SUMMARY
[0005] The technical problem solved by the present application is to provide a flexible synapse fabric with pressure sensing to solve the problem of poor protection effect of the existing pressure monitoring fabric.
[0006] The basic scheme provided by the present application is a flexible synapse fabric with pressure sensing, which comprises a flexible synapse fabric body, the flexible synapse fabric body comprises a first anti-tension woven layer, a second anti-tension woven layer, a plurality of flexible film pressure sensors one, a plurality of flexible film pressure sensors two, a plurality of flexible deformation support components and a plurality of strip-shaped integrated wire bundles, wherein: The first tensile braid layer and the second tensile braid layer are connected by stitching, the top of the first tensile braid layer forms a plurality of convex peak bodies one, the bottom of the second tensile braid layer forms a plurality of convex peak bodies two, the flexible deformation support assembly is located between the convex peak bodies one and the convex peak bodies two, the flexible thin film pressure sensor one is located between the convex peak bodies one and the flexible deformation support assembly, the flexible thin film pressure sensor two is located between the convex peak bodies two and the flexible deformation support assembly, and the flexible thin film pressure sensor one and the flexible thin film pressure sensor two are symmetrically arranged; The strip-shaped integrated wire harness is located between the first tensile braid layer and the second tensile braid layer and penetrates the flexible deformation support assembly, and the strip-shaped integrated wire harness is connected with the flexible thin film pressure sensor one and the flexible thin film pressure sensor two.
[0007] Further, one end of the flexible synaptic fabric body is provided with a collection wire harness connected with the strip-shaped integrated wire harness, and a lead-out wire harness is arranged at the middle position on one side of the collection wire harness.
[0008] Further, the first tensile braid layer and the second tensile braid layer are connected by a plurality of transverse stitching lines and a plurality of longitudinal stitching lines, and the transverse stitching lines and the longitudinal stitching lines are arranged in a staggered manner with the flexible thin film pressure sensor one, the flexible thin film pressure sensor two and the strip-shaped integrated wire harness.
[0009] Further, the flexible thin film pressure sensor one and the flexible thin film pressure sensor two are both circular arc surface structures.
[0010] Further, one side of the flexible thin film pressure sensor one and the flexible thin film pressure sensor two is provided with a lead wire one and a lead wire two connected with the strip-shaped integrated wire harness.
[0011] Further, the first tensile braid layer and the second tensile braid layer are both woven by transverse tensile strips, longitudinal tensile strips, oblique tensile strips one and oblique tensile strips two.
[0012] Further, the transverse tensile strips, the longitudinal tensile strips, the oblique tensile strips one and the oblique tensile strips two are all woven by ultra-high molecular weight polyethylene woven lines, nylon lines, steel wire lines, bamboo charcoal fiber woven lines and cotton lines.
[0013] Further, the flexible deformation support assembly is composed of a first support unit and a second support unit, the first support unit and the second support unit are symmetrically arranged, one side of the first support unit and the second support unit is a circular planar structure, and the other side of the first support unit and the second support unit is a circular arc surface structure.
[0014] Further, the first support unit and the second support unit are connected by an adhesive layer.
[0015] Further, the first support unit and the second support unit are both composed of high-density polyurethane microcellular foam and microporous cortex coating layer.
[0016] The principle and advantage of the present application are that the first tensile braid layer and the second tensile braid layer form top and bottom surface protection, realize full cladding of the flexible thin film pressure sensor one, the flexible thin film pressure sensor two and the strip-shaped integrated wire harness, avoid the flexible thin film pressure sensor one, the flexible thin film pressure sensor two and the strip-shaped integrated wire harness from being exposed and easily damaged, the protruding peak one and the protruding peak two are combined with the flexible thin film pressure sensor one and the flexible thin film pressure sensor two, pressure change is more easily detected, pressure monitoring precision is improved, the flexible deformation support assembly realizes support of the flexible thin film pressure sensor one and the flexible thin film pressure sensor two, helps the flexible thin film pressure sensor one and the flexible thin film pressure sensor two to deform and recover, avoids permanent deformation, the flexible thin film pressure sensor one and the flexible thin film pressure sensor two are symmetrically designed, and twice pressure monitoring at the same position can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the flexible synaptic fabric with pressure sensing of the present application. Figure 2 It is a partial structural schematic view of the flexible synaptic fabric with pressure sensing of the present application. Figure 3 It is a partial sectional view of the flexible synaptic fabric with pressure sensing of the present application. Figure 4 It is a sectional view of the flexible deformation support assembly of the present application. Figure 5 It is a structural schematic view of the first tensile braid layer of the present application. Figure 6 It is a structural schematic view of the transverse tensile cloth strip of the present application. Figure 7 It is a structural schematic view of the flexible thin film pressure sensor one and the flexible thin film pressure sensor two of the present application.
[0018] The reference signs in the attached drawings of the specification include: flexible synaptic fabric body 1, first tensile woven layer 2, second tensile woven layer 3, flexible thin film pressure sensor one 4, flexible thin film pressure sensor two 5, flexible deformation support assembly 6, strip-shaped integrated wire harness 7, protruding peak one 8, protruding peak two 9, collection wire harness 10, lead-out wire harness 11, transverse suture line 12, longitudinal suture line 13, lead wire one 14, lead wire two 15, transverse tensile cloth strip 16, longitudinal tensile cloth strip 17, oblique tensile cloth strip one 18, oblique tensile cloth strip two 19, ultra-high molecular weight polyethylene woven wire 20, nylon wire 21, steel wire 22, bamboo charcoal fiber woven wire 23, cotton thread 24, first support unit 25, second support unit 26, adhesive layer 27, high-density polyurethane microcellular foam 28, microporous cortical coating layer 29. DETAILED DESCRIPTION
[0019] The following is further described in detail through specific embodiments: The embodiments are basically as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 : A flexible synaptic fabric with pressure sensing, comprising a flexible synaptic fabric body 1, the flexible synaptic fabric body 1 comprising a first tensile woven layer 2, a second tensile woven layer 3, a plurality of flexible thin film pressure sensors one 4, a plurality of flexible thin film pressure sensors two 5, a plurality of flexible deformation support assemblies 6, and a plurality of strip-shaped integrated wire harnesses 7, wherein: The first tensile woven layer 2 and the second tensile woven layer 3 are sutured together, the top of the first tensile woven layer 2 forms a plurality of protruding peak one 8, the bottom of the second tensile woven layer 3 forms a plurality of protruding peak two 9, the flexible deformation support assembly 6 is located between the protruding peak one 8 and the protruding peak two 9, the flexible thin film pressure sensor one 4 is located between the protruding peak one 8 and the flexible deformation support assembly 6, the flexible thin film pressure sensor two 5 is located between the protruding peak two 9 and the flexible deformation support assembly 6, the flexible thin film pressure sensor one 4 and the flexible thin film pressure sensor two 5 are symmetrically arranged; The strip-shaped integrated wire harness 7 is located between the first tensile woven layer 2 and the second tensile woven layer 3 and penetrates the flexible deformation support assembly 6, and the strip-shaped integrated wire harness 7 is connected with the flexible thin film pressure sensor one 4 and the flexible thin film pressure sensor two 5.
[0020] In the embodiment, the first tensile braid layer 2 and the second tensile braid layer 3 form top and bottom protection, realize full coverage of the flexible film pressure sensor one 4, the flexible film pressure sensor two 5 and the strip-shaped integrated wire harness 7, avoid damage of the flexible film pressure sensor one 4, the flexible film pressure sensor two 5 and the strip-shaped integrated wire harness 7 due to exposure, the protruding peak one 8 and the protruding peak two 9 are combined with the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5, more easily detect pressure changes, improve pressure monitoring accuracy, the flexible deformation support assembly 6 supports the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5, helps the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 to recover from deformation, avoids permanent deformation, the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 are symmetrically designed, which can realize twice pressure monitoring at the same position.
[0021] As shown in Figure 1 , one end of the flexible synaptic fabric body 1 is provided with a collection wire harness 10 connected with the strip-shaped integrated wire harness 7, the middle position of one side of the collection wire harness 10 is provided with a lead-out wire harness 11, which can realize electrical connection between the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 and the pressure monitoring controller, and realize feedback of pressure monitoring data.
[0022] As shown in Figure 2 , the first tensile braid layer 2 and the second tensile braid layer 3 are connected by a plurality of transverse stitching lines 12 and a plurality of longitudinal stitching lines 13, the transverse stitching lines 12 and the longitudinal stitching lines 13 are arranged in a staggered manner with the flexible film pressure sensor one 4, the flexible film pressure sensor two 5 and the strip-shaped integrated wire harness 7, the transverse stitching lines 12 and the longitudinal stitching lines 13 realize stitching and reinforcement of the first tensile braid layer 2 and the second tensile braid layer 3, avoid dislocation of the first tensile braid layer 2 and the second tensile braid layer 3, improve overall stability, and realize efficient protection of the flexible film pressure sensor one 4, the flexible film pressure sensor two 5 and the strip-shaped integrated wire harness 7.
[0023] At the same time, as shown in Figure 5 , the first tensile braid layer 2 and the second tensile braid layer 3 are both composed of transverse tensile cloth strips 16, longitudinal tensile cloth strips 17, oblique tensile cloth strips one 18 and oblique tensile cloth strips two 19, which realize tensile effect in four directions through the transverse tensile cloth strips 16, the longitudinal tensile cloth strips 17, the oblique tensile cloth strips one 18 and the oblique tensile cloth strips two 19, avoid damage of the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 due to pulling force on the first tensile braid layer 2 and the second tensile braid layer 3.
[0024] And the transverse tensile strips 16, longitudinal tensile strips 17, diagonal tensile strips one 18 and diagonal tensile strips two 19 are all woven by ultra-high molecular weight polyethylene woven wire 20, nylon wire 21, steel wire 22, bamboo charcoal fiber woven wire 23 and cotton wire 24, as shown in the structure diagram of the transverse tensile strips 16 of the example, the combination of ultra-high molecular weight polyethylene woven wire 20, nylon wire 21, steel wire 22, bamboo charcoal fiber woven wire 23 and cotton wire 24 can improve the tensile properties and antibacterial properties. Figure 6
[0025] As shown in Figure 7 The flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 are both circular arc surface structures, which can improve the uniformity of the force and further improve the accuracy of pressure monitoring; one side of the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 is provided with a lead one 14 and a lead two 15 connected with the strip-shaped integrated wire harness 7, and the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 are electrically connected with the strip-shaped integrated wire harness 7 through the lead one 14 and the lead two 15.
[0026] As shown in Figure 4 The flexible deformation support assembly 6 is composed of a first support unit 25 and a second support unit 26, the first support unit 25 and the second support unit 26 are symmetrically arranged, one side of the first support unit 25 and the second support unit 26 is a circular plane structure, and the other side of the first support unit 25 and the second support unit 26 is a circular arc surface structure; the circular plane structure and the circular arc surface structure on both sides of the first support unit 25 and the second support unit 26 can match the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5.
[0027] At the same time, the first support unit 25 and the second support unit 26 are connected through the adhesive layer 27, which can improve the connection stability; the first support unit 25 and the second support unit 26 are both composed of high-density polyurethane micro-honeycomb foam 28 and microporous cortical coating layer 29, the high-density polyurethane micro-honeycomb foam 28 is located inside the microporous cortical coating layer 29, which can have a memory rebound effect, so as to drive the flexible film pressure sensor one 4 and the flexible film pressure sensor two 5 to reset the shape.
[0028] The above are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A flexible synaptic fabric with pressure sensing, characterized by: The flexible synapse fabric body comprises a first tensile woven layer, a second tensile woven layer, a plurality of flexible thin film pressure sensors one, a plurality of flexible thin film pressure sensors two, a plurality of flexible deformation support assemblies and a plurality of strip-shaped integrated wire harnesses, wherein: The first tensile woven layer and the second tensile woven layer are connected by stitching, the top of the first tensile woven layer forms a plurality of convex peak bodies one, the bottom of the second tensile woven layer forms a plurality of convex peak bodies two, the flexible deformation support assemblies are located between the convex peak bodies one and the convex peak bodies two, the flexible thin film pressure sensors one are located between the convex peak bodies one and the flexible deformation support assemblies, the flexible thin film pressure sensors two are located between the convex peak bodies two and the flexible deformation support assemblies, and the flexible thin film pressure sensors one and the flexible thin film pressure sensors two are symmetrically arranged; The strip-shaped integrated wire harnesses are located between the first tensile woven layer and the second tensile woven layer and penetrate the flexible deformation support assemblies, and the strip-shaped integrated wire harnesses are connected with the flexible thin film pressure sensors one and the flexible thin film pressure sensors two.
2. The flexible synaptic fabric with pressure sensing of claim 1, wherein: One end of the flexible synapse fabric body is provided with a collection wire harness connected with the strip-shaped integrated wire harnesses, and a lead wire harness is arranged at the middle position of one side of the collection wire harness.
3. The flexible synaptic fabric with pressure sensing of claim 1, wherein: The first tensile woven layer and the second tensile woven layer are connected by stitching through a plurality of transverse stitching lines and a plurality of longitudinal stitching lines, and the transverse stitching lines and the longitudinal stitching lines are arranged in a staggered manner with the flexible thin film pressure sensors one, the flexible thin film pressure sensors two and the strip-shaped integrated wire harnesses.
4. The flexible synaptic fabric with pressure sensing of claim 1, wherein: The flexible thin film pressure sensors one and the flexible thin film pressure sensors two are both circular arc surface structures.
5. The flexible synaptic fabric with pressure sensing of claim 2, wherein: One side of each of the flexible thin film pressure sensors one and the flexible thin film pressure sensors two is provided with a lead wire one and a lead wire two connected with the strip-shaped integrated wire harnesses.
6. The flexible synaptic fabric with pressure sensing of claim 3, wherein: The first tensile woven layer and the second tensile woven layer are both woven from transverse tensile cloth strips, longitudinal tensile cloth strips, oblique tensile cloth strips one and oblique tensile cloth strips two.
7. The flexible synaptic fabric with pressure sensing of claim 6, wherein: The transverse tensile cloth strips, the longitudinal tensile cloth strips, the oblique tensile cloth strips one and the oblique tensile cloth strips two are all woven from ultra-high molecular weight polyethylene woven lines, nylon lines, steel wire lines, bamboo charcoal fiber woven lines and cotton lines.
8. The flexible synaptic fabric with pressure sensing of claim 1, wherein: The flexible deformation support assemblies are composed of first support units and second support units, the first support units and the second support units are symmetrically arranged, one side of each of the first support units and the second support units is a circular planar structure, and the other side of each of the first support units and the second support units is a circular arc surface structure.
9. The flexible synaptic fabric with pressure sensing of claim 8, wherein: The first support units and the second support units are connected by an adhesive layer.
10. The flexible synaptic fabric with pressure sensing of claim 9, wherein: The first support units and the second support units are both composed of high-density polyurethane micro-honeycomb bubble foam and microporous cortical coating layers.