Low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions

Abstract

The utility model discloses a low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions. The low-temperature thermoplastic composite material structure comprises a light-transmitting fabric cloth layer I, a flexible transparent graphene layer, a heat-conducting low-temperature thermoplastic material layer, a matrix light source, a flexible PCB (Printed Circuit Board) layer, a temperature sensing coating and a light-transmitting fabric cloth layer II, the light-permeable fabric cloth layer is arranged on the flexible transparent graphene layer; the flexible transparent graphene layer is arranged on the upper surface of the heat-conducting low-temperature thermoplastic material layer and is used for radiating heat and emitting far infrared light waves for phototherapy; the flexible PCB layer is arranged on the lower surface of the heat-conducting low-temperature thermoplastic material layer; the matrix light source is arranged on the flexible PCB layer, is embedded into the heat-conducting low-temperature thermoplastic material layer, and is used for emitting visible light and near-infrared light for phototherapy; the second light-permeable fabric cloth layer is arranged below the flexible PCB layer. The temperature sensing coating is arranged between the flexible PCB layer and the second light-permeable fabric cloth layer.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature thermoplastic polymer composite materials, in particular to a low-temperature thermoplastic composite material structure with phototherapy and thermotherapy functions. Background Art

[0002] Low-temperature thermoplastic plates are lightweight, breathable, and have memory functions. They act on the limbs or trunk of the human body to protect and stabilize the limbs, prevent and correct limb deformities. In the treatment of bone, joint, nerve and muscle diseases, they are an in vitro device that has the single function of protecting limbs, stabilizing (fixing) joints, and preventing and correcting deformities.

[0003] In the field of rehabilitation therapy, especially for the treatment of fractures and limb injuries, low-temperature thermoplastic plates are widely used due to their lightness, breathability and memory function. These plates can be shaped to fit the human limbs or torso, and are used to protect and stabilize limbs, prevent and correct deformities. However, existing technologies mainly focus on providing external support, but lack the ability to assist in the treatment of muscle pain, swelling and wound healing.

[0004] As a new type of material, graphene heating film shows great potential in the field of medical health due to its high thermal conductivity and far-infrared radiation characteristics. However, existing graphene heating films are mostly used for single thermal therapy and have not been effectively combined with other rehabilitation methods such as phototherapy. Phototherapy equipment on the market, especially far-infrared phototherapy equipment, usually uses long-distance radiation therapy, which limits the continuity and convenience of treatment. Although wearable phototherapy equipment provides a certain degree of portability, it has problems such as a single spectrum and insufficient light power.

[0005] At present, low-temperature thermoplastic plates are mainly used in the field of external fixation due to their plasticity, and they provide protection and support for bone injury rehabilitation. However, due to the long recovery period of bone healing, auxiliary treatment of muscle pain, swelling, and wound healing at the fracture site is also required. However, currently, the formed external fixation brace needs to be removed before this can be performed, which can easily cause secondary damage to the affected tissue and fracture site, and the use environment is also limited. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides a low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a low-temperature thermoplastic composite material structure with phototherapy and thermotherapy functions, comprising a light-transmitting fabric layer 1, a flexible transparent graphene layer, a heat-conducting low-temperature thermoplastic material layer, a matrix light source, a flexible PCB board layer, a temperature-sensitive coating, and a light-transmitting fabric layer 2;

[0008] The light-permeable fabric layer is arranged on the flexible transparent graphene layer, and is used for contacting with the human body to provide a comfortable feeling;

[0009] The flexible transparent graphene layer is arranged on the upper surface of the heat-conducting low-temperature thermoplastic material layer, and is used to radiate heat and emit far-infrared light waves for phototherapy;

[0010] The flexible PCB board layer is placed on the lower surface of the thermally conductive low-temperature thermoplastic material layer;

[0011] The matrix light source is arranged on the flexible PCB board layer and embedded in the thermally conductive low-temperature thermoplastic material layer, and is used to emit visible light and near-infrared light for phototherapy;

[0012] The second light-transmissive fabric layer is arranged below the flexible PCB layer;

[0013] The temperature-sensitive coating is arranged between the flexible PCB board layer and the second light-transmissive fabric cloth layer, and is used to display different colors according to different temperature ranges to monitor the temperature;

[0014] Among them, the graphene heating film, due to its unique physical properties, can efficiently convert electrical energy into heat energy after being powered on, and at the same time emit far-infrared rays, which match the wavelength absorbed by human tissue and are easily absorbed by the human body. It has a certain positive effect on relieving muscle pain, promoting wound healing and reducing inflammation, and is particularly suitable for therapeutic applications in fitting human limbs or local muscle tissue. In particular, the flexible transparent graphene layer has the characteristics of visible light and infrared spectrum penetration, which is easy to combine with red light and near-infrared light sources, and can be expanded into a physical therapy device with dual functions of visible light, near-infrared, far-infrared, light and heat. Through the control device, it can switch between light sources of different spectra, and produce biological effects on human tissues, which has a more extensive and beneficial treatment purpose.

[0015] Preferably, the thermally conductive low-temperature thermoplastic material layer is provided with a plurality of holes for ventilation and embedding the matrix light source.

[0016] Preferably, the wavelength range of the matrix light source is 600-1500 nm, and the optical power is in the range of 20-200 mW; the matrix light source includes visible light and near-infrared LED light sources.

[0017] Preferably, the flexible transparent graphene layer and the heat-conductive low-temperature thermoplastic material layer are hot-pressed by a hot press or bonded by an adhesive or welding.

[0018] Preferably, the material of the thermally conductive low-temperature thermoplastic material layer includes a low-temperature thermoplastic material and a thermally conductive filler.

[0019] Preferably, the low-temperature thermoplastic material is made of a special polymer material and has the property of shape memory. It can be softened and shaped according to the shape of the user within a temperature range of 40°C to 60°C, and maintain the shaped shape after cooling.

[0020] Preferably, the thermally conductive filler is selected from one or more of graphite, silicon carbide, silicon nitride, carbon nanotubes, and graphene.

[0021] Preferably, the temperature-sensitive coating is a multi-layer structure, and each layer is composed of a temperature-sensitive material, and each layer corresponds to a different temperature variation range.

[0022] The technical solution of the utility model has the following beneficial effects:

[0023] The low-temperature thermoplastic functional composite device of the utility model provides an innovative rehabilitation therapy solution by integrating visible light, infrared graphene light and thermal therapy functions. Compared with the prior art, the utility model has the following significant advantages:

[0024] Functional diversity: The composite device of the utility model can not only provide heat therapy, but also provide visible light and near-infrared light therapy through a flexible light source to meet the treatment needs of different rehabilitation stages.

[0025] Portability and Conformability: The device of this utility model is designed to be lightweight, easy to carry and store, while being able to precisely conform to different parts of the human body to provide more personalized and effective treatment.

[0026] Memory and comfort: Using the memory properties of low-temperature thermoplastic materials, the device of this utility model can be shaped according to the user's shape in one go, and return to its original shape after treatment, which is convenient for repeated use. The outer fabric layer further improves the wearing comfort.

[0027] Innovative structural design: The device of the utility model achieves the dual effects of phototherapy and thermal therapy by organically combining a flexible transparent graphene layer, a matrix light source layer and a light-transmitting fabric layer, while simplifying the preparation process and reducing costs.

[0028] Broad application prospects: The device of the utility model is not only suitable for bone injury treatment and rehabilitation, but also can be used for daily health care, and has broad market application potential.

[0029] Functional diversity: under the control of the control device, it can realize the single or superimposed phototherapy functions of visible light, near-infrared phototherapy, and graphene far-infrared phototherapy, and at the same time realize the function of graphene thermal therapy;

[0030] Portability: Traditional heat therapy and light therapy equipment are usually bulky and inconvenient to carry and store, which limits users' use at home or on the go;

[0031] Fit and wearability: Traditional devices cannot accurately fit different parts of the human body, and the treatment effect is poor.

[0032] Memory: When a part is treated, it can be restored to its original state by utilizing the memory characteristics of thermoplastic materials, making it easier to use next time.

[0033] Comfort: The outer layer is fitted with a fabric layer to increase comfort;

[0034] Heat dissipation: The heat dissipation performance of the thermoplastic board is improved by modifying the material and punching holes in the board;

[0035] Safety: The temperature-sensing coating can display different colors in different temperature ranges, and different colors represent different temperature values. When the temperature exceeds the set safety threshold, the temperature-sensing coating will quickly change color and send out a warning signal to alert people to possible safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a layered schematic diagram of the utility model;

[0037] Figure 2 This is a schematic diagram of a light-transmitting fabric layer of the utility model;

[0038] Figure 3 This is a schematic diagram of the flexible transparent graphene layer of the utility model;

[0039] Figure 4 This is a schematic diagram of a heat-conducting low-temperature thermoplastic material layer of the utility model;

[0040] Figure 5 This is a schematic diagram of the matrix light source and flexible PCB board layers of the utility model;

[0041] Figure 6 This is a side view of the matrix light source and flexible PCB board layer of the utility model;

[0042] Figure 7 This is a schematic diagram of the temperature-sensitive coating of the utility model;

[0043] Figure 8 This is a schematic diagram of the second light-transmitting fabric layer of the utility model. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] Reference Figures 1 to 8The utility model provides a low-temperature thermoplastic composite material structure with phototherapy and thermotherapy functions, including a light-transmitting fabric layer 100, a flexible transparent graphene layer 200, a heat-conducting low-temperature thermoplastic material layer 300, a matrix light source 400, a flexible PCB board layer 500, a temperature-sensitive coating 600, and a light-transmitting fabric layer 2 700;

[0046] The light-transmitting fabric layer 100 is arranged on the flexible transparent graphene layer 200. The light-transmitting fabric layer serves as an outer layer, providing comfort when in contact with the human body and protecting the durability of the inner layer. A number of mesh holes are provided on the light-transmitting fabric layer. The light-transmitting fabric layer has light transmittance: it allows light of specific wavelengths (such as visible light and near-infrared light) to penetrate to achieve a phototherapy effect; softness: it provides a soft touch when in contact with the skin, increasing the comfort of the user; breathability: it allows air circulation, reducing the stuffiness and moisture accumulation when worn; durability: it has certain wear resistance and stretch resistance to adapt to daily use and repeated wearing, and can withstand wear and stretching in daily use; decorativeness: different colors, patterns or textures can be used according to design requirements to enhance the appearance of the product; the light-transmitting fabric layer is made of skin-friendly material to reduce potential irritation to the skin.

[0047] The flexible transparent graphene layer 200 is arranged on the upper surface of the heat-conducting low-temperature thermoplastic material layer 300, and is used to radiate heat and emit far-infrared light waves for phototherapy; the flexible transparent graphene layer and the heat-conducting low-temperature thermoplastic material layer are bonded by hot pressing with a hot press; far-infrared light is generated by the flexible transparent graphene layer, and these particles can emit light of far-infrared wavelengths under the action of electric current, and the main wavelengths are concentrated in 4μm-20μm, which is very close to the human body's thermal radiation range of 4μm-17μm. This light energy penetrates deep into muscle tissue, helping to promote blood circulation and cell regeneration; the flexible graphene heating film has electrothermal conversion: it efficiently converts electrical energy into thermal energy, which is used to convert electrical energy into thermal energy and emit far-infrared rays for thermal therapy; the flexible graphene heating film can emit far-infrared rays: after power is turned on, it emits far-infrared rays that match the absorption wavelength of human tissue, which helps to promote blood circulation and wound healing; the flexible graphene heating film is flexible: it can bend and fit the natural shape of human limbs to increase the comfort of use; the flexible graphene heating film is transparent: it can be designed to be transparent or translucent, allowing visible light and near-infrared light to penetrate to achieve phototherapy effects. The flexible graphene heating film has a high thermal conductivity, which helps to evenly distribute heat; the flexible graphene heating film adjusts the temperature through the control circuit to adapt to different treatment needs; the flexible graphene heating film is combined with a temperature-sensitive coating to monitor and display the working temperature.

[0048] The flexible PCB layer 500 is placed on the lower surface of the thermally conductive low-temperature thermoplastic material layer, and the flexible PCB layer 500 is fixed on the thermally conductive low-temperature thermoplastic material layer 300 by means of heat pressing, gluing or ultrasonic welding. The flexible PCB layer 500 is flexible: it can bend and adapt to different shapes to fit the contours of human limbs, provide necessary circuit wiring to connect and power the matrix light source 400 layer; it has good mechanical stability and electrical performance to withstand daily use and good durability; compared with traditional rigid PCB boards, flexible PCB boards are lighter and thinner, and are suitable for wearable devices;

[0049] The matrix light source is arranged on the flexible PCB board layer 500 and embedded in the thermally conductive low-temperature thermoplastic material layer, and is used to emit visible light and near-infrared light for phototherapy; the wavelength range of the matrix light source 400 is 600-1500nm, and the optical power is in the range of 20-200mW; the matrix light source 400 includes visible light and near-infrared LED light sources, and the wavelengths of the visible light and near-infrared light sources can be selected according to the needs of treatment, and a combination of light-emitting chips with different wavelength spectra can be selected to achieve the purpose of treatment; Matrix arrangement: The light sources are arranged in a matrix form, which can provide uniform illumination and a wider coverage area. The arrangement pattern of the matrix light source is optimized according to the shape of the human limbs and the treatment area; the matrix light source is connected to the control circuit through the flexible PCB board layer to achieve precise control of the light source.

[0050] The second light-transmissive fabric layer 700 is disposed below the flexible PCB layer 500;

[0051] The temperature-sensitive coating 600 is arranged between the flexible PCB board layer 500 and the second light-transmissive fabric layer 700, and is used to display different colors according to different temperature ranges to monitor the temperature; the temperature-sensitive coating 600 is a multi-layer structure, and each layer is composed of temperature-sensitive materials, and each layer corresponds to a different temperature change range. The color change of the temperature-sensitive coating is reversible, allowing the coating to return to its original color state after the temperature drops; the color change of the temperature-sensitive coating can be directly observed by the naked eye without the need for additional equipment or tools; the color change of the temperature-sensitive coating provides an intuitive temperature monitoring method, which enhances the user's understanding of the working status of the device. The color change of the temperature-sensitive coating includes but is not limited to changing from colorless to colored, or from one color to another, and the color change is reversible when the temperature drops below a threshold. The temperature-sensitive coating 600 includes at least two temperature-sensitive layers, the first layer changes color within a lower temperature range to indicate a safe temperature state, and the second layer changes color within a higher temperature range to issue an overheating warning, wherein when the temperature exceeds a preset threshold of the second layer, the temperature-sensitive coating quickly changes from the color of the first layer to the color of the second layer to provide an immediate visual warning; the temperature-sensitive coating is directly applied to the lower surface of the flexible PCB board layer by spraying, coating or other similar coating technologies; the color change of the temperature-sensitive coating is not affected by external light conditions, ensuring that it can be clearly seen in various lighting environments.

[0052] The thermally conductive low-temperature thermoplastic material layer 300 is provided with a plurality of holes 301 for ventilation and embedding a matrix light source, which can further improve the heat dissipation and ventilation performance of the board.

[0053] Furthermore, the material of the heat-conductive low-temperature thermoplastic material layer 300 includes a low-temperature thermoplastic material and a heat-conductive filler; the low-temperature thermoplastic material is made of a special polymer material and has the characteristic of memory shape. Within the temperature range of 40°C-60°C, it can be softened and shaped according to the shape of the user, and maintain the shaped shape after cooling; the heat-conductive filler is selected from graphite, silicon carbide, silicon nitride, carbon nanotubes, graphene, etc., which have a very high thermal conductivity coefficient and extremely high thermal conductivity. When these materials are used as fillers in plastic modification, they can significantly improve the thermal conductivity of the composite material; compared with traditional thermoplastic materials, low-temperature thermoplastic materials are usually lighter and suitable for wearable devices.

[0054] This embodiment also provides a method for preparing a low-temperature thermoplastic composite material structure having phototherapy and thermotherapy functions, comprising the following steps:

[0055] Step S1: After the low-temperature thermoplastic material and the heat-conducting filler are mixed and stirred evenly, they are extruded through a twin-screw extruder to obtain a heat-conducting low-temperature thermoplastic material layer 300, or after the low-temperature thermoplastic material and the heat-conducting filler are mixed and stirred evenly, they are extruded through a twin-screw extruder and then evenly extruded with a three-dimensional mesh fabric through an extruder to obtain a heat-conducting low-temperature thermoplastic material layer; wherein the weight ratio of the heat-conducting filler is 5-20% of the low-temperature thermoplastic material; in the step S1, by adding the heat-conducting filler, the thermal conductivity of the low-temperature thermoplastic material can be significantly improved, and the improved thermal conductivity performance helps to more effectively transfer heat to the body part that needs to be treated, thereby enhancing the thermal conductivity. Therapeutic effect, improved thermal conductivity helps to more effectively dissipate the heat generated by the light source, prevent the equipment from overheating, and improve safety; Form a uniform composite material: Ensure that the thermally conductive filler is evenly distributed in the low-temperature thermoplastic material during the blending process to obtain a composite material with consistent performance. By adjusting the proportion of thermally conductive fillers, customized materials with specific thermal conductivity requirements can be manufactured to optimize the softness and comfort of the material, making it more suitable for wear; The use of a twin-screw extruder can achieve continuous production, improve production efficiency and reduce costs. The blending and extrusion processes can be carried out under controlled conditions to ensure the quality and consistency of each batch of products;

[0056] Step S2: Bond the thermally conductive low-temperature thermoplastic material layer 300 and the flexible transparent graphene layer 200 by hot pressing using a hot press; in step S2, the thermally conductive low-temperature thermoplastic material layer 300 and the flexible transparent graphene layer 200 are bonded by hot pressing using a hot press; the hot pressing bonding ensures the heat energy transfer and electrical connection (if necessary) between the thermally conductive layer and the heating film, and the hot pressing conditions used in step S2 are precisely controlled according to the material properties of the thermally conductive low-temperature thermoplastic material layer 300 and the flexible transparent graphene layer 200. The bonding structure obtained in step S2 has high durability and stability, and is suitable for long-term wear and repeated use. Step S2 enables the flexible transparent graphene layer to provide a uniform thermal therapy effect. The bonded thermal conductive layer can quickly and evenly transfer the heat generated by the graphene heating film to the entire surface, improving the efficiency of heat conduction: hot pressing bonding provides a strong connection method, which makes the composite device stable during repeated use and washing, enhancing durability and stability; the addition of a flexible transparent graphene layer provides a soft and adaptable thermal therapy layer, increasing the comfort when wearing; optimizing the thermal therapy effect, the composite device combining the thermal conductive layer and the heating film can provide uniform and effective thermal therapy, which helps relieve pain, promote blood circulation and accelerate the healing process. Hot pressing is a mature industrial technology that can simplify the manufacturing process and improve production efficiency.

[0057] Step S3: Punching the heat-conductive low-temperature thermoplastic material layer 300 to facilitate air permeability and embedding of the matrix light source; wherein the punching process forms holes 301 on the material layer to allow air circulation, improve air permeability, and improve comfort when worn. The holes provide a precise installation position for the matrix light source 400, ensuring that the light source assembly can be correctly placed and that the matrix light source assembly can be stably embedded and not easily displaced; by punching out and removing part of the material, the total weight of the device can be reduced, making it more suitable for wear; the holes increase the discharge of hot air, help dissipate heat, and improve heat dissipation efficiency.

[0058] Step S4 embeds the matrix light source by hot pressing, gluing, or ultrasonic welding; gluing embedding: applying adhesive to the pads or contact points of the matrix light source, and then placing the light source on the flexible PCB layer, and fixing it after the adhesive is cured; ultrasonic welding: using the mechanical vibration and friction heat generated by the ultrasonic welding machine, the metal pads of the matrix light source 400 and the metal pads of the flexible PCB layer 500 are welded together, and then embedded into the hole 301 of the thermally conductive low-temperature thermoplastic material layer;

[0059] Step S5: spraying a temperature-sensitive coating 600 on one side of the flexible PCB layer 500;

[0060] The temperature-sensing coating 600 can visually indicate whether the device is in a safe operating temperature range through the color change of the coating. As a preventive measure, the temperature-sensing coating helps avoid device damage or user burns caused by overheating; enhance user experience: users can intuitively understand the working status of the device through the color change of the temperature-sensing coating.

[0061] Step S6: bonding the side of the flexible PCB layer 500 that is not coated with the temperature-sensitive coating 600 to the thermally conductive low-temperature thermoplastic material layer 300 by hot pressing with a hot press;

[0062] Step S7: bonding a layer of light-transmitting fabric to the surface of the flexible transparent graphene layer 200 and the surface of the flexible PCB board layer 500 .

[0063] The physiotherapy method of the utility model comprises the following steps: cutting the thermoplastic functional composite structure into a suitable size according to the needs of the treatment part; placing the composite structure in an environment of 40°C to 70°C and waiting for the board to soften; within the temperature range of 40°C to 70°C, the board will soften due to the thermoplastic effect and be easy to shape; the softened board can be customized and shaped according to the shape of the treatment part to ensure fit and functionality; the softened board can better fit the curves and irregular parts of the body and improve the comfort and stability of wearing; customized shaping helps to ensure that the treatment part receives uniform heat and light therapy, thereby improving the treatment effect; the softening process simplifies the shaping work of the board, making it easier for medical staff or patients to operate; fitting the softened board to the part to be treated; after waiting for the material to harden, the board is Trim to make it fit better with the skin, or use a mold to preform the softened sheet into a shape for direct use by the patient; connect an external controller for heat therapy and phototherapy; adjust the temperature of the flexible transparent graphene layer through the external controller to achieve the desired heat therapy effect; the controller can manage the turning on and off and intensity adjustment of the matrix light source to adapt to different phototherapy needs, and the controller can synchronize the heat therapy and phototherapy processes to provide a comprehensive treatment method; the external controller provides precise temperature and light intensity control to ensure the safety and effectiveness of the treatment, and the controller settings can be adjusted according to the different needs of the user and the treatment area to achieve personalized treatment. Users or medical staff can easily operate through the controller interface to improve ease of use, and the treatment effect can be optimized by precisely controlling the heat therapy and phototherapy parameters.

[0064] From the above embodiments, it can be seen that the low-temperature thermoplastic functional composite device of the utility model provides an innovative rehabilitation therapy solution by integrating visible light, infrared graphene light and thermal therapy functions. Compared with the prior art, the utility model has the following significant advantages:

[0065] Functional diversity: The composite device of the utility model can not only provide heat therapy, but also provide visible light and near-infrared light therapy through a flexible light source to meet the treatment needs of different rehabilitation stages.

[0066] Portability and Conformability: The device of this utility model is designed to be lightweight, easy to carry and store, while being able to precisely conform to different parts of the human body to provide more personalized and effective treatment.

[0067] Memory and comfort: Using the memory properties of low-temperature thermoplastic materials, the device of this utility model can be shaped according to the user's shape in one go, and return to its original shape after treatment, which is convenient for repeated use. The outer fabric layer further improves the wearing comfort.

[0068] Innovative structural design: The device of the utility model achieves the dual effects of phototherapy and thermal therapy by organically combining a flexible transparent graphene layer, a matrix light source layer and a light-transmitting fabric layer, while simplifying the preparation process and reducing costs.

[0069] Broad application prospects: The device of the utility model is not only suitable for bone injury treatment and rehabilitation, but also can be used for daily health care, and has broad market application potential.

[0070] Functional diversity: under the control of the control device, it can realize the single or superimposed phototherapy functions of visible light, near-infrared phototherapy, and graphene far-infrared phototherapy, and at the same time realize the function of graphene thermal therapy;

[0071] Portability: Traditional heat therapy and light therapy equipment are usually bulky and inconvenient to carry and store, which limits users' use at home or on the go;

[0072] Fit and wearability: Traditional devices cannot accurately fit different parts of the human body, and the treatment effect is poor.

[0073] Memory: When a part is treated, it can be restored to its original state by utilizing the memory characteristics of thermoplastic materials, making it easier to use next time.

[0074] Comfort: The outer layer is fitted with a fabric layer to increase comfort;

[0075] Heat dissipation: The heat dissipation performance of the thermoplastic board is improved by modifying the material and punching holes in the board;

[0076] Safety: The temperature-sensing coating can display different colors in different temperature ranges, and different colors represent different temperature values. When the temperature exceeds the set safety threshold, the temperature-sensing coating will quickly change color and send out a warning signal to alert people to possible safety hazards.

[0077] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A low-temperature thermoplastic composite material structure with phototherapy and thermotherapy functions, characterized in that: It includes a light-transmitting fabric layer 1, a flexible transparent graphene layer, a heat-conducting low-temperature thermoplastic material layer, a matrix light source, a flexible PCB board layer, a temperature-sensitive coating, and a light-transmitting fabric layer 2; The light-permeable fabric layer is arranged on the flexible transparent graphene layer, and is used for contacting with the human body to provide a comfortable feeling; The flexible transparent graphene layer is arranged on the upper surface of the heat-conducting low-temperature thermoplastic material layer, and is used to radiate heat and emit far-infrared light waves for phototherapy; The flexible PCB board layer is placed on the lower surface of the thermally conductive low-temperature thermoplastic material layer; The matrix light source is arranged on the flexible PCB board layer and embedded in the thermally conductive low-temperature thermoplastic material layer, and is used to emit visible light and near-infrared light for phototherapy; The second light-transmissive fabric layer is arranged below the flexible PCB layer; The temperature-sensitive coating is arranged between the flexible PCB board layer and the second light-transmissive fabric cloth layer, and is used to display different colors according to different temperature ranges to monitor the temperature.

2. The low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions according to claim 1, characterized in that: The thermally conductive low-temperature thermoplastic material layer is provided with a plurality of holes for ventilation and embedding a matrix light source.

3. The low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions according to claim 1, characterized in that: The wavelength range of the matrix light source is 600-1500nm, and the optical power is in the range of 20-200mW; the matrix light source includes visible light and near-infrared LED light sources.

4. The low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions according to claim 2, characterized in that: The flexible transparent graphene layer and the heat-conducting low-temperature thermoplastic material layer are hot-pressed by a hot press or bonded by an adhesive or welded.

5. The low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions according to claim 4, characterized in that: The material of the thermally conductive low-temperature thermoplastic material layer includes low-temperature thermoplastic material and thermally conductive filler.

6. The low-temperature thermoplastic composite material structure with phototherapy and thermal therapy functions according to claim 1, characterized in that: The temperature-sensitive coating is a multi-layer structure, and each layer is composed of a temperature-sensitive material, and each layer corresponds to a different temperature variation range.

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