Color-changing fabric and automotive interior trim part

Abstract

The color-changing fabric comprises a surface layer, a first conducting layer, a macromolecule color-changing film layer, a second conducting layer and a back face layer which are sequentially arranged, and the first conducting layer and the second conducting layer are used for being connected with a power source respectively and conducting current from the power source to the macromolecule color-changing film layer. The polymer color-changing film layer can present light rays with different colors under different voltages, and the light rays can be emitted outwards through the surface layer; wherein the surface layer, the first conductive layer, the polymer color-changing film layer, the second conductive layer and the back layer are all made of flexible materials. The color-changing fabric has the effect of an atmosphere lamp, in addition, the surface layer, the first conducting layer, the macromolecule color-changing film layer, the second conducting layer and the back face layer are all made of flexible materials, shaping can be well achieved, the color-changing fabric can be widely applied to automobiles, and the design space of automobile interiors in the aspect of environment or atmosphere building is enlarged.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to a color-changing fabric and an automobile interior decoration part. Background Art

[0002] At present, the existing vehicle interiors only have ambient lights for the purpose of creating an environment. The ambient light area is limited, and the cost of large-area ambient lights is high, so there is still room for improvement in the environment or atmosphere creation of the interior.

[0003] In related technologies, in order to ensure the privacy of the space inside the car, color-changing accessories such as electrochromic glass are added to the car glass. Electrochromic glass can produce color changes for shielding. The traditional electrochromic glass design concept is to add a conductive medium between two layers of glass, and change the color and transparency of the medium through an external electric field or current. However, due to the large size of electrochromic glass, wide edge sealing, and the difficulty in shaping electrochromic glass, it is difficult to be widely used in automobiles. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a color-changing fabric and an automobile interior decoration part, which solves the problem in the prior art that electrochromic glass is difficult to shape and difficult to be widely used in automobiles.

[0005] In the first aspect, the present application provides a color-changing fabric for use in automobiles, comprising an epidermis layer, a first conductive layer, a polymer color-changing film layer, a second conductive layer and a back layer arranged in sequence, the first conductive layer and the second conductive layer being used to be respectively connected to a power source and conduct the current from the power source to the polymer color-changing film layer, the polymer color-changing film layer being able to present light of different colors under different voltages, and the light being able to be emitted outward through the epidermis layer; wherein the epidermis layer, the first conductive layer, the polymer color-changing film layer, the second conductive layer and the back layer are all made of flexible materials.

[0006] In one embodiment, the polymer color-changing film layer is sandwiched between the first conductive layer and the second conductive layer, and is directly connected to the first conductive layer and the second conductive layer.

[0007] In one embodiment, the first conductive layer is connected to a negative electrode wire, the negative electrode wire is used to be connected to the negative electrode of the power source, and the second conductive layer is connected to a positive electrode wire, the positive electrode wire is used to be connected to the positive electrode of the power source; or

[0008] The first conductive layer is connected to a positive wire, and the positive wire is used to be connected to the positive electrode of the power supply. The second conductive layer is connected to a negative wire, and the negative wire is used to be connected to the negative electrode of the power supply.

[0009] In one embodiment, the surface layer is made of a light-transmissive insulating material, and the back layer is made of a light-impermeable insulating material.

[0010] In one embodiment, a first adhesive film layer is connected between the surface layer and the first conductive layer, and a second adhesive film layer is connected between the back surface layer and the second conductive layer.

[0011] In a second aspect, the present application provides an automotive interior component, comprising:

[0012] The color-changing fabric as described in any one of the first aspects;

[0013] The voltage control module is electrically connected to the polymer color-changing film layer, and is used to control the voltage conducted by the polymer color-changing film layer, and to control the polymer color-changing film layer to present light of different colors under different voltages.

[0014] In one embodiment, it also includes a temperature acquisition module connected to the voltage control module, the temperature acquisition module is used to sense the temperature of the environment in which the color-changing fabric is located, and send corresponding temperature control signals to the voltage control module at different temperatures, and the temperature control signal is used to drive the voltage control module to adjust the voltage output to the polymer color-changing film layer.

[0015] In one embodiment, the temperature acquisition module includes:

[0016] The temperature sensing unit is provided with a temperature sensor NTC for sensing temperature changes, wherein the temperature sensor NTC presents different resistance values ​​under different temperature sensing to adjust the temperature control signal;

[0017] A filter unit is connected to the temperature sensing unit and the voltage control module, and is used to filter out noise in the temperature control signal sent by the temperature sensing unit to the voltage control module.

[0018] In one embodiment, the filtering unit includes a first capacitor C1, a resistor R and a second capacitor C2, the first capacitor C1 is connected in parallel with the temperature sensor NTC, the resistor R is connected in series with the temperature sensor NTC, and the second capacitor C2 is connected in series with the resistor R; one end of the temperature sensor NTC is also connected in series with a pull-up resistor Rs, the pull-up resistor Rs is used to connect to the positive electrode of a power supply, and the other end of the temperature sensor NTC is connected to the negative electrode of the power supply.

[0019] In one embodiment, the voltage control module is provided with a single chip microcomputer with a chip model of DSH550.

[0020] In the color-changing fabric and automobile interior decoration parts of this embodiment, the polymer color-changing film layer can present different colors of light under different voltages after being powered on, and emit light outward through the epidermis layer, so that the color-changing fabric has the effect of an atmosphere light. In addition, the epidermis layer, the first conductive layer, the polymer color-changing film layer, the second conductive layer and the back layer are all made of flexible materials, can be well shaped, and can be widely used in automobiles, thereby increasing the design space of automobile interiors in terms of environment or atmosphere creation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the color-changing fabric and the car in the embodiment of the present application.

[0023] Figure 2 This is a circuit diagram of the voltage control module and the temperature acquisition module in the embodiment of the present application.

[0024] Among them: 10, epidermal layer; 20, first adhesive film layer; 30, first conductive layer; 40, polymer color-changing film layer; 50, second conductive layer; 60, second adhesive film layer; 70, back layer; 80, voltage control module; 90, temperature acquisition module; 91, temperature sensing unit; 92, filter unit. DETAILED DESCRIPTION

[0025] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0028] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0029] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0030] like Figure 1 As shown, this embodiment provides a color-changing fabric for use in automobiles, comprising an epidermis layer 10, a first conductive layer 30, a polymer color-changing film layer 40, a second conductive layer 50 and a back layer 70 arranged in sequence, the first conductive layer 30 and the second conductive layer 50 are used to be respectively connected to a power source, and conduct the current from the power source to the polymer color-changing film layer 40, the polymer color-changing film layer 40 can present light of different colors under different voltages, and the light can be emitted outward through the epidermis layer 10; wherein the epidermis layer 10, the first conductive layer 30, the polymer color-changing film layer 40, the second conductive layer 50 and the back layer 70 are all made of flexible materials.

[0031] In the color-changing fabric of the present embodiment, the polymer color-changing film layer 40 can present light of different colors under different voltages after being powered on, and emit light outward through the epidermis layer 10, so that the color-changing fabric has the effect of an ambient light. In addition, the epidermis layer 10, the first conductive layer 30, the polymer color-changing film layer 40, the second conductive layer 50 and the back layer 70 are all made of flexible materials, can be well shaped, and can be widely used in automobiles, thereby increasing the design space of automobile interiors in terms of environment or atmosphere creation.

[0032] The polymer color-changing film layer 40 is provided with a polymer color-changing film, which is usually made of polymer materials, including some special organic polymer materials, such as polymer liquid crystals, polymer photonic crystals, etc. When these materials are excited by voltage, the structure or molecular arrangement will change, resulting in a change in color. In addition, the polymer color-changing film can also be made of color-changing electrochromic fibers published by patent number 202210442656.3.

[0033] The first conductive layer 30 and the second conductive layer 50 are both made of conductive materials, such as indium tin oxide (ITO), graphene, metal nanowires, carbon nanotubes, conductive polymers, and silver, copper and aluminum films, etc. The first conductive layer 30 is made of a transparent conductive material, and the light emitted by the polymer color-changing film can pass through the first conductive layer 30 and the epidermis 10 in sequence and be emitted outward.

[0034] In one embodiment, the polymer color-changing film layer 40 is sandwiched between the first conductive layer 30 and the second conductive layer 50, and is directly connected to the first conductive layer 30 and the second conductive layer 50. In this embodiment, the first conductive layer 30 and the second conductive layer 50 can directly abut the polymer color-changing film layer 40 and supply power to the polymer color-changing film layer 40.

[0035] In one embodiment, the first conductive layer 30 is connected to a negative electrode wire, which is used to be connected to the negative electrode of the power supply, and the second conductive layer 50 is connected to a positive electrode wire, which is used to be connected to the positive electrode of the power supply; or the first conductive layer 30 is connected to a positive electrode wire, which is used to be connected to the positive electrode of the power supply, and the second conductive layer 50 is connected to a negative electrode wire, which is used to be connected to the negative electrode of the power supply.

[0036] In one embodiment, the epidermis 10 is made of a light-transmissive insulating material, and the back layer 70 is made of a light-impermeable insulating material. In this embodiment, the epidermis 10 needs to transmit the light generated by the polymer color-changing film layer 40, while the back layer 70 needs to prevent the light from transmitting, so as to prevent the color-changing fabric from leaking light. Among them, the epidermis 10 can be made of a transparent plastic material, a silicone material or a polymer material, such as polyvinyl chloride (PVC), thermoplastic polyurethane elastomer (TPU), etc. The epidermis 10 can also be made of fiber fabric, or leather with light transmission, or imitation wood grain material with a light-transmissive surface, so as to improve the aesthetics of the color-changing fabric.

[0037] In one embodiment, a first adhesive film layer 20 is connected between the epidermis layer 10 and the first conductive layer 30, and a second adhesive film layer 60 is connected between the back layer 70 and the second conductive layer 50. In this embodiment, the first adhesive film layer 20 and the second adhesive film layer 60 are made of insulating soft adhesive material, which can effectively prevent the color-changing fabric from leaking electricity. The first adhesive film layer 20 is made of transparent soft adhesive to ensure that the light generated by the polymer color-changing film can pass through the first adhesive film layer 20 and the epidermis layer 10 in sequence and emit outward, wherein the transparent soft adhesive is generally made of polyvinyl chloride (PVC), polyamide elastomer, polyolefin elastomer, polyurethane elastomer and other materials.

[0038] like Figure 2As shown, the present embodiment also provides an automotive interior component, including the above-mentioned color-changing fabric and a voltage control module 80. The voltage control module 80 is electrically connected to the polymer color-changing film layer 40, and is used to control the voltage conducted by the polymer color-changing film layer 40, and to control the polymer color-changing film layer 40 to present light of different colors under different voltages.

[0039] In this embodiment, the voltage control module 80 can control the voltage at both ends of the polymer color-changing film to control the polymer color-changing film to present different colors. For example, when the voltage is 15V or below, the polymer color-changing film presents blue; when the voltage is 15-18V, the polymer color-changing film presents yellow; when the voltage is 18-24V, the polymer color-changing film presents red. It is understood that the relationship between the above voltage value and color is only for example and can be customized according to the needs of the user.

[0040] In one embodiment, a temperature acquisition module 90 connected to the voltage control module 80 is also included. The temperature acquisition module 90 is used to sense the temperature of the environment in which the color-changing fabric is located, and sends a corresponding temperature control signal to the voltage control module 80 at different temperatures. The temperature control signal is used to drive the voltage control module 80 to adjust the voltage output to the polymer color-changing film layer 40. In this embodiment, the temperature acquisition module 90 can construct different scenes according to the temperature by sensing the temperature of the environment in which the color-changing fabric is located. For example, when the temperature is less than 10°C, the temperature acquisition module 90 can control the voltage control module 80 to output a voltage of 24V and drive the polymer color-changing film to appear red; when the temperature is greater than or equal to 10°C and less than or equal to 25°C, the temperature acquisition module 90 can control the voltage control module 80 to output a voltage of 18V and drive the polymer color-changing film to appear yellow; when the temperature is greater than 25°C, the temperature acquisition module 90 can control the voltage control module 80 to output a voltage of 15V and drive the polymer color-changing film to appear blue.

[0041] In one embodiment, the temperature acquisition module 90 includes a temperature sensing unit 91 and a filtering unit 92. The temperature sensing unit 91 is provided with a temperature sensor NTC for sensing temperature changes. The temperature sensor NTC presents different resistance values ​​under different temperature sensing to adjust the temperature control signal; the filtering unit 92 is connected to the temperature sensing unit 91 and the voltage control module 80, and is used to filter out noise in the temperature control signal sent by the temperature sensing unit 91 to the voltage control module 80.

[0042] In one embodiment, the filter unit 92 includes a first capacitor C1, a resistor R and a second capacitor C2, the first capacitor C1 is connected in parallel with the temperature sensor NTC, the resistor R is connected in series with the temperature sensor NTC, and the second capacitor C2 is connected in series with the resistor R; one end of the temperature sensor NTC is also connected in series with a pull-up resistor Rs, the pull-up resistor Rs is used to connect the positive electrode of the power supply, and the other end of the temperature sensor NTC is connected to the negative electrode of the power supply. In this embodiment, the temperature sensor NTC is a thermistor. When the sensed temperature is higher, the resistance of the temperature sensor NTC is lower. At this time, the voltage at both ends of the temperature sensor NTC is lower, and the voltage control module 80 can sense the corresponding low-voltage temperature control signal, and output the corresponding voltage value to the polymer color-changing film, driving the polymer color-changing film to present the corresponding color under the corresponding voltage. The high-level pin of the power supply +5V is connected to the pull-up resistor Rs, and the low-level pin is connected to the temperature sensor NTC. The pull-up resistor Rs can clamp the temperature control signal sent by the temperature acquisition module 90 at a high level, and can limit the current in the temperature acquisition module 90.

[0043] In one embodiment, the voltage control module 80 is provided with a single chip microcomputer with a chip model of DSH550. In this embodiment, the voltage control module 80 is specifically a temperature controller, which measures the temperature of the color-changing fabric through a temperature sensor NTC, and then outputs the measured temperature value and the corresponding converted voltage value. The temperature controller can use a microprocessor (PID controller) or an integrated circuit to achieve temperature measurement and control voltage output.

[0044] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. A color-changing fabric for automobiles, characterized in that: The invention comprises an epidermis layer (10), a first conductive layer (30), a polymer color-changing film layer (40), a second conductive layer (50) and a back layer (70) which are arranged in sequence, wherein the first conductive layer (30) and the second conductive layer (50) are used to be connected to a power source respectively and conduct the current from the power source to the polymer color-changing film layer (40), and the polymer color-changing film layer (40) can present light of different colors under different voltages, and the light can be emitted outward through the epidermis layer (10); wherein the epidermis layer (10), the first conductive layer (30), the polymer color-changing film layer (40), the second conductive layer (50) and the back layer (70) are all made of flexible materials.

2. The color-changing fabric according to claim 1, characterized in that: The polymer color-changing film layer (40) is sandwiched between the first conductive layer (30) and the second conductive layer (50), and is directly connected to the first conductive layer (30) and the second conductive layer (50).

3. The color-changing fabric according to claim 1, characterized in that: The first conductive layer (30) is connected to a negative electrode wire, the negative electrode wire is used to be connected to the negative electrode of the power source, and the second conductive layer (50) is connected to a positive electrode wire, the positive electrode wire is used to be connected to the positive electrode of the power source; or The first conductive layer (30) is connected to a positive electrode wire, which is used to be connected to the positive electrode of the power source, and the second conductive layer (50) is connected to a negative electrode wire, which is used to be connected to the negative electrode of the power source.

4. The color-changing fabric according to claim 1, characterized in that: The surface layer (10) is made of a light-transmissive insulating material, and the back layer (70) is made of a light-impermeable insulating material.

5. The color-changing fabric according to any one of claims 1 to 4, characterized in that: A first adhesive film layer (20) is connected between the surface layer (10) and the first conductive layer (30), and a second adhesive film layer (60) is connected between the back layer (70) and the second conductive layer (50).

6. An automotive interior component, characterized in that: include: The color-changing fabric according to any one of claims 1 to 5; The voltage control module (80) is electrically connected to the polymer color-changing film layer (40) and is used to control the voltage conducted by the polymer color-changing film layer (40) and to control the polymer color-changing film layer (40) to present light of different colors under different voltages.

7. The automotive interior component according to claim 6, characterized in that: It also includes a temperature acquisition module (90) connected to the voltage control module (80), wherein the temperature acquisition module (90) is used to sense the temperature of the environment in which the color-changing fabric is located, and to send corresponding temperature control signals to the voltage control module (80) at different temperatures, wherein the temperature control signal is used to drive the voltage control module (80) to adjust the voltage output to the polymer color-changing film layer (40).

8. The automotive interior component according to claim 7, characterized in that: The temperature acquisition module (90) comprises: A temperature sensing unit (91) is provided with a temperature sensor NTC for sensing temperature changes, wherein the temperature sensor NTC presents different resistance values ​​under different temperature sensing conditions to adjust the temperature control signal; A filter unit (92) is connected to the temperature sensing unit (91) and the voltage control module (80) and is used to filter out noise in the temperature control signal sent by the temperature sensing unit (91) to the voltage control module (80).

9. The automotive interior component according to claim 8, characterized in that: The filtering unit (92) comprises a first capacitor C1, a resistor R and a second capacitor C2, wherein the first capacitor C1 is connected in parallel with the temperature sensor NTC, the resistor R is connected in series with the temperature sensor NTC, and the second capacitor C2 is connected in series with the resistor R; one end of the temperature sensor NTC is also connected in series with a pull-up resistor Rs, the pull-up resistor Rs is used to connect to the positive electrode of a power supply, and the other end of the temperature sensor NTC is connected to the negative electrode of the power supply.

10. The automotive interior component according to claim 6, characterized in that: The voltage control module (80) is provided with a single chip microcomputer with a chip model of DSH550.

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