Electrochromic device and electric vehicle having the same

Abstract

The utility model provides an electrochromism device and an electric vehicle with the electrochromism device. The electrochromism device comprises an electrochromism device, two substrate layers located on the two sides of the electrochromism device respectively, at least one conductive pattern and at least one touch signal processing module. The conductive pattern and the touch signal processing module are arranged on the outer surface of the substrate layer or in the color changing device, and the conductive pattern is used for generating a touch signal according to the touch of a user; the touch signal processing module is electrically connected with the conductive pattern and used for receiving the touch signal and generating a control signal used for controlling the electrochromic device. The conductive pattern and the touch signal processing module are integrated on the electrochromic device, so that the telecommunication transmission distance between the conductive pattern and the touch signal processing module is effectively shortened, and the touch sensitivity is improved.

Description

Technical Field

[0001] The present application relates to the field of electrochromic technology, and in particular provides an electrochromic device and an electric vehicle having the electrochromic device. Background Art

[0002] Electrochromic technology is a phenomenon in which the optical properties of a material (reflectivity, transmittance, absorptivity, etc.) undergo stable and reversible color changes under the action of an external electric field, which manifests itself as a reversible change in color and transparency. Devices containing electrochromic materials are called electrochromic devices. Typically, an external power supply is required to power an electrochromic device to form a voltage across its two ends. In recent years, electrochromic devices have been widely used in energy-saving windows, automotive glass, display devices, mobile terminals and other fields, and have good market application prospects.

[0003] In practical applications, a control system is often required to adjust the transmittance of electrochromic devices to meet varying dimming requirements. However, existing methods for controlling the transmittance of electrochromic devices using buttons are limited in signal transmission rate. This slow signal transmission affects the device's color change rate, resulting in poor control effectiveness. Furthermore, methods that stack touch-sensitive layers between electrochromic device layers can easily cause optical distortion. Utility Model Content

[0004] The purpose of the present application is to provide an electrochromic device and an electric vehicle, aiming to solve the problem that the touch control adjustment of the existing electrochromic device has poor control effect and easily causes light distortion of the electrochromic device.

[0005] To achieve the above objectives, the technical solution adopted in this application is:

[0006] In a first aspect, an embodiment of the present application provides an electrochromic device, comprising an electrochromic device, two substrate layers respectively located on both sides of the electrochromic device, at least one conductive pattern and at least one touch signal processing module; the conductive pattern and the touch signal processing module are arranged on the outer surface of the substrate layer or inside the color-changing device, and the conductive pattern is used to generate a touch signal based on the user's touch; the touch signal processing module is electrically connected to the conductive pattern, for receiving the touch signal and generating a control signal for controlling the electrochromic device.

[0007] The electrochromic device of this application has the following beneficial effects: the conductive pattern forms the touch adjustment area of the electrochromic device. When the touch pattern is touched by a user, a touch signal is generated. The touch signal processing module receives and processes the touch signal to generate a control signal, thereby achieving color control of the electrochromic device. By integrating the conductive pattern and the touch signal processing module into the electrochromic device, the structure is more streamlined. No long wiring is required between the conductive pattern and the touch signal processing module, effectively shortening the telecommunication transmission distance between the conductive pattern and the touch signal processing module, effectively improving touch sensitivity and enhancing the user experience.

[0008] In some embodiments, the conductive pattern is disposed on the inner surface of the base layer and / or on two opposite surfaces of the electrochromic device.

[0009] In some embodiments, the area of the region enclosed by the conductive pattern is less than 1 / 5 of the surface area of the base layer.

[0010] In some embodiments, the conductive pattern is printed on the surface of the electrochromic device or the substrate layer. The surface of the electrochromic device refers to two surfaces arranged opposite each other along its thickness. The surface of the substrate layer refers to two surfaces arranged opposite each other along its thickness. The surface area of the substrate layer refers to the area of one surface of one substrate layer.

[0011] By adopting the above technical solution, the conductive pattern is specifically formed by printing on the surface of the electrochromic device or the substrate layer, which improves processing efficiency and helps reduce the thickness of the conductive pattern, thereby reducing the impact on the thickness of the structure. In some embodiments, the conductive pattern is provided on the surface of the electrochromic device or the substrate layer, and the thickness of the conductive pattern ranges from 5μm to 100μm.

[0012] In some embodiments, the interior of the electrochromic device and / or the outer surface of the base layer is provided with a groove, and the conductive pattern is located in the groove.

[0013] In one embodiment, the depth of the groove ranges from 5 μm to 0.15 mm.

[0014] By adopting the above technical solution, the conductive pattern can be protruded on the surface of the base layer; or a groove for accommodating the conductive pattern can be provided on the surface of the base layer; the arrangement of the conductive pattern is not limited.

[0015] In some embodiments, the conductive pattern and the touch signal processing module are disposed on different surfaces of the base layer.

[0016] In some embodiments, the inner surface of each base layer comprises one conductive pattern, and the outer surface of the base layer is used to fix the touch signal processing module.

[0017] When the conductive pattern is disposed inside the electrochromic device, the conductive pattern is isolated from the external air, thereby effectively protecting the conductive pattern and increasing the service life.

[0018] In some embodiments, the electrochromic device further includes a wire, the wire including a first segment, a second segment, and a third segment connected in sequence, the first segment and the third segment being electrically connected to the conductive pattern and the touch signal processing module, respectively.

[0019] In some embodiments, along the thickness direction of the electrochromic device, the first segment, the one base layer, and the third segment are stacked in sequence.

[0020] In some embodiments, along the thickness direction of the electrochromic device, the thickness of the first segment is less than the thickness of the one substrate layer.

[0021] In some embodiments, the length of the first segment is greater than the length of the second segment and the third segment.

[0022] In some embodiments, the length of the first segment is less than half the length of the one substrate layer.

[0023] In some embodiments, the wire is a flat wire.

[0024] By adopting the above technical solution, the conductor is specifically a flat structure, that is, the conductor is thin in the thickness direction, reducing the impact on the thickness of the stacked structure; the conductor forms a three-section structure to stably achieve electrical connection between the conductive pattern and the touch signal processing module.

[0025] In some embodiments, the electrochromic device is provided with a notch, which penetrates one of the two base layers and the electrochromic device along the thickness direction of the electrochromic device, and is used to accommodate a connecting wire connecting the touch signal processing module and the conductive pattern.

[0026] In some embodiments, among the two base layers, one surface of one base layer includes the conductive pattern, the other surface of the other base layer is used to fix the touch signal processing module, and the notch penetrates the other base layer and the electrochromic device along the thickness direction.

[0027] By adopting the above technical solution, by setting a gap, it is beneficial to electrically connect the touch signal processing module and the touch pattern. The connecting wire is located in the gap, which is beneficial to regular circuit layout and reduces the phenomenon of circuit damage caused by exposed connecting wires.

[0028] In some embodiments, at least a portion of the conductive pattern is located within the notch; one end of the connecting wire forms a solder joint with the conductive pattern within the notch; and the other end of the connecting wire extends outside the notch and is electrically connected to the touch signal processing module.

[0029] By adopting the above technical solution, the connecting wire can be directly welded to the conductive pattern in the notch, which is convenient for connection and has a stable structure. The welding point is located in the notch and does not affect the thickness of the stacked structure.

[0030] In some embodiments, the conductive pattern includes a touch portion and a connecting portion connected to the touch portion; the area enclosed by the outer contour of the connecting portion is smaller than the area enclosed by the outer contour of the touch portion, and at least a portion of the connecting portion is located in the notch and connected to the solder joint.

[0031] By adopting the above technical solution, the touch part will not be exposed in the gap, which can effectively protect the touch part and increase the service life of the product.

[0032] In some embodiments, the color of the connecting portion is lighter than the color of the touch portion.

[0033] By adopting the above technical solution, the connecting portion plays an electrical connection role, which can reduce its projected area in the thickness direction and reduce its color depth, thereby reducing the adverse effect on the transmittance of the electrochromic device.

[0034] In some embodiments, the electrochromic device further includes a light-transmitting insulating layer, wherein the insulating layer covers the conductive pattern.

[0035] By adopting the above technical solution, the conductive pattern can be arranged on the surface of the base layer away from the electrochromic device, and an insulating layer can be further arranged on the outer surface of the conductive pattern to prevent the conductive pattern from being directly exposed to the outside, effectively protecting the conductive pattern and improving the service life.

[0036] In some embodiments, the electrochromic device further includes an indicator light and a connecting adhesive layer. The indicator light operates when the conductive pattern generates a touch signal. The indicator light is disposed between the base layer and the electrochromic device, and the connecting adhesive layer covers the indicator light.

[0037] In some embodiments, a receiving groove is provided on the outer surface of the base, and the indicator light is located in the receiving groove.

[0038] In some embodiments, the base layer has a hollow cavity, and the indicator light is located in the cavity.

[0039] By setting an indicator light, users can intuitively understand the dimming status of the electrochromic device through the light changes of the indicator light, thereby improving the user experience.

[0040] In some embodiments, each of the base layers includes a visible area and a non-visible area, wherein the non-visible area surrounds the visible area, the touch signal processing module is fixed in the non-visible area, and at least a portion of the conductive pattern is located in the visible area.

[0041] In some embodiments, the area of the visible region is larger than the area of the non-visible region.

[0042] By adopting the above technical solution, the non-visible area can shield the touch signal processing module so that the touch signal processing module is not exposed. The user can only see the conductive pattern in the visible area, which is convenient for the user to intuitively see the conductive pattern and touch it, and the structure is simple in appearance.

[0043] In a second aspect, an embodiment of the present application further provides an electric vehicle comprising a plurality of windows and an on-board power supply, wherein at least one of the windows adopts the electrochromic device as described above, and the electrochromic device is used to receive power from the on-board power supply to change the transmittance of the electrochromic device.

[0044] By adopting the above technical solution, the electrochromic device of the present application can be specifically used in windows of electric vehicles, including but not limited to side windows, windshield, rear windshield and sunroof.

[0045] In some embodiments, the two substrate layers of the electrochromic device constitute the inner and outer sides of the vehicle window, and the conductive pattern is disposed on the substrate layer on the inner side of the vehicle window.

[0046] By adopting the above technical solution, users have the actual need to adjust the color and transmittance of the windows while riding in the car. Therefore, the conductive pattern is set on the base layer on the inside of the window. The base layer on the inside of the window forms the inner glass of the window. The user can directly touch the conductive pattern on it to adjust the color and transmittance of the window. The adjustment operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0048] Figure 1This is a schematic top view of the electrochromic device according to one embodiment of the present application, wherein the conductive pattern is electrically connected to the touch signal processing module via a wire;

[0049] Figure 2 This is a schematic cross-sectional view of an electrochromic device according to another embodiment of the present application; wherein the conductive pattern is electrically connected to the touch signal processing module via a wire;

[0050] Figure 3 for Figure 2 A magnified view of the middle part A;

[0051] Figure 4 This is a schematic top view of the electrochromic device provided in one embodiment of the present application, wherein a gap is formed on a substrate layer;

[0052] Figure 5 A schematic cross-sectional view of an electrochromic device according to an embodiment of the present application, wherein a gap is formed on a substrate layer;

[0053] Figure 6 for Figure 5 Enlarged view of the middle part B;

[0054] Figure 7 This is a schematic diagram of the effect of two base layers separated from each other provided in one embodiment of the present application; wherein a gap is formed on one base layer;

[0055] Figure 8 A schematic top view of the electrochromic device provided in one embodiment of the present application having multiple conductive patterns formed thereon;

[0056] Figure 9 A schematic top view of an electrochromic device with an indicator light provided in another embodiment of the present application;

[0057] Figure 10 This is a schematic cross-sectional structural diagram of an electrochromic device at an indicator light provided by another embodiment of the present application.

[0058] Among them, the reference numerals in the figures are as follows:

[0059] 1000. Electrochromic device;

[0060] 1. electrochromic device; 2. substrate layer; 201. visible area; 202. non-visible area;

[0061] 3. Surface; 4. Conductive pattern; 41. Touch portion; 42. Connecting portion;

[0062] 5. Touch signal processing module; 6. Groove;

[0063] 7. Inner basal layer; 8. Outer basal layer;

[0064] 9. Wire; 901, first section; 902, second section; 903, third section;

[0065] 10. Notch; 11. Connecting wire; 12. Solder joint; 13. Indicator light; 14. Connecting adhesive layer;

[0066] X, thickness direction. DETAILED DESCRIPTION

[0067] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0068] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0069] In addition, in the description of the present application, “a plurality of” means two or more, unless otherwise clearly and specifically defined.

[0070] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0071] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0072] To meet the varying transmittance requirements of electrochromic devices in different scenarios, it is necessary to control the transmittance of electrochromic devices. However, existing methods for controlling the transmittance of electrochromic devices have poor control effects and are prone to causing optical distortion in the electrochromic devices.

[0073] Based on this, the present application sets a conductive pattern on the outer surface of the base layer or inside the color-changing device and sets the touch signal processing module directly on the base layer, so that the conductive pattern and the touch signal processing module are integrated into the electrochromic device, the structure is more streamlined, and touch control of the electrochromic device is realized; compared with the existing technology, in the embodiment of the present application, there is no need for a long line connection between the conductive pattern and the touch signal processing module, which effectively shortens the telecommunication transmission distance between the conductive pattern and the touch signal processing module, effectively improves the touch sensitivity, and enhances the user experience.

[0074] refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 One embodiment of the present application provides an electrochromic device 1000, comprising an electrochromic device 1, two substrate layers 2, a conductive pattern 4, and a touch signal processing module 5, wherein the two substrate layers 2 are respectively located on both sides of the electrochromic device 1. According to the actual application scenario, the two substrate layers 2 can be an inner substrate layer 7 and an outer substrate layer 8, respectively. The inner substrate layer 7 refers to the substrate layer 2 on the user side of the electrochromic device 1000 used to form curtain walls, car side windows, rearview mirrors, and car sunroofs, and the outer substrate layer 8 refers to the substrate layer 2 facing away from the user. The inner substrate layer 7, the electrochromic device 1, and the outer substrate layer 8 are stacked in sequence. The conductive pattern 4 is provided on the outer surface of the substrate layer 2 or inside the electrochromic device 1000, and is used to generate touch signals based on the user's touch and transmit the touch signals to the touch signal processing module 5. The touch signal processing module 5 is electrically connected to the conductive pattern 4 and is used to receive and process touch signals and generate control signals for controlling the electrochromic device. The touch signal processing module 5 can be fixed to any substrate layer 2 .

[0075] The conductive pattern 4 can be provided on any one of the electrochromic devices 1, such as Figure 2 The surface 3 shown can also be provided on any surface 3 of the base layer 2 , that is, the conductive pattern 4 can be located on the outer surface of the base layer 2 (that is, the outer surface of the electrochromic device 1000 ), or can be located inside the electrochromic device 1000 .

[0076] There may be multiple conductive patterns 4. The multiple conductive patterns 4 may be provided simultaneously and spaced apart from each other on the same surface 3 of the electrochromic device 1, or on different surfaces 3 of the electrochromic device 1, or simultaneously provided on the same surface of the same substrate 2, or on different surfaces of the same substrate 2, or respectively provided on the surfaces of the electrochromic device 1 and the substrate 2.

[0077] The base layer 2 is light-transmissive, and the electrochromic device 1 contains an electrochromic material. The electrochromic device 1 can undergo a reversible color change under the action of an external voltage, thereby causing the electrochromic device 1000 to change color, thereby adjusting the transmittance of the electrochromic device 1000, so that the electrochromic device 1000 can achieve the functions of light transmission or shielding and anti-glare.

[0078] The conductive pattern 4 is a non-transparent, continuous pattern, meaning that the surface of the base layer 2 can display the conductive pattern 4. The conductive pattern 4 can be any one of text, graphics, letters, and numbers, or a combination of at least two. The conductive pattern 4 is electrically conductive. The conductive pattern 4 can also be a discontinuous pattern, with each portion electrically connected to each other. The touch signal processing module 5 is electrically connected to any portion of the conductive pattern 4. The combination of the conductive pattern 4 and its corresponding base layer 2 utilizes existing touch screen technology, equivalent to an existing touch screen, such as capacitive touch screen technology or resistive touch screen technology, which will not be further described here.

[0079] As an example, in some embodiments, the conductive pattern 4 is provided on the substrate 2 or one of the surfaces 3 of the electrochromic device 1 and forms a capacitive touch pattern. When a user approaches the touch pattern with a finger and contacts the surface 3 of the substrate 2 facing away from the electrochromic device 1, the location where the finger contacts the surface 3 of the substrate 2 is called a touch point. After the finger contacts the surface 3 of the substrate 2, the capacitance at the contact point changes. According to the capacitance change at the contact point, a touch signal can be generated. It can be understood that the surface 3 of the conductive pattern 4 provided on the substrate 2 and the surface 3 of the substrate 2 contacted by the finger can be the same surface; or the surface 3 of the conductive pattern 4 provided on the substrate 2 and the surface 3 of the substrate 2 contacted by the finger can be different surfaces 3, as long as the capacitance at the contact point can change when touching. The touch signal processing module 5 is electrically connected to the control unit for controlling the color change of the electrochromic device 1. The touch signal processing module 5 is used to generate a control signal for controlling the electrochromic device 1 based on the received touch signal and send it to the control unit. The control unit is used to control the color change of the electrochromic device 1. Specifically, any capacitive touch implementation method in the prior art may be used to generate a touch signal according to a change in capacitance at a contact point of a user's finger, and details thereof will not be described in detail in this embodiment.

[0080] In one embodiment, in response to the control signal, the control unit is adapted to control the electrochromic device 1 to implement at least one of the following functions: start / stop coloring, start / stop fading, and adjust the electrochromic device 1 to a specific transmittance.

[0081] In one example, reference Figure 1 、 Figure 4 , the number of conductive pattern 4 is one, which is provided on the inner base layer 7, and the number of touch signal processing module 5 is one, which is provided on the surface of base layer 2. The conductive pattern 4 is electrically connected to the touch signal processing module 5 at a close distance through a wire. In another example, referring to Figure 8 , the number of conductive patterns 4 is 3. For example, one conductive pattern 4 may be provided on each of the two substrate layers 2 and the electrochromic device 1, or at least two conductive patterns 4 may be provided on the same substrate layer 2 or on the electrochromic device 1 at the same time.

[0082] When there are multiple conductive patterns 4, the number of touch signal processing modules 5 can be one, and each conductive pattern 4 is electrically connected to the touch signal processing module 5 through a wire, or the number of touch signal processing modules 5 can also be multiple, and each conductive pattern 4 is electrically connected to a corresponding touch signal processing module 5 through a wire.

[0083] In one embodiment, the electrochromic device 1000 includes a conductive pattern 4. In response to a first control signal generated by the conductive pattern 4 in response to a user trigger, the control unit controls the electrochromic device 1 to start coloring / fading. In response to a second control signal generated by the conductive pattern 4 in response to a user trigger, the control unit controls the electrochromic device 1 to stop coloring / fading.

[0084] In one embodiment, the electrochromic device 1000 includes two conductive patterns 4. In response to a control signal triggered by one of the conductive patterns 4, the control unit controls the electrochromic device 1 to start coloring / fading. In response to a control signal triggered by the other conductive pattern 4, the control unit controls the electrochromic device 1 to stop coloring / fading.

[0085] In one embodiment, the electrochromic device 1000 includes multiple conductive patterns 4, each corresponding to a specific position of the electrochromic device 1. The transmittance of the electrochromic device 1 varies in different positions. In response to a control signal triggered by any conductive pattern 4, the control unit controls the electrochromic device 1 to the position corresponding to the preset position of that conductive pattern 4.

[0086] In the electrochromic device of the present application, the conductive pattern 4 forms the touch adjustment area of the electrochromic device 1000. When the conductive pattern 4 is touched, a touch signal is generated. The touch signal processing module 5 receives and processes the touch signal to generate a control signal, thereby achieving color adjustment of the electrochromic device 1. In the embodiment of the present application, the transmittance of the electrochromic device 1 is adjusted by touch, which improves the convenience of operation.

[0087] In the embodiment of the present application, by directly setting the touch signal processing module 5 on the base layer 2, the conductive pattern 4 and the touch signal processing module 5 are integrated on the electrochromic device 1000, the structure is more streamlined, and no long line connection is required between the conductive pattern 4 and the touch signal processing module 5, which effectively shortens the telecommunication transmission distance between the conductive pattern 4 and the touch signal processing module 5, effectively improves the touch sensitivity, and enhances the user experience.

[0088] In addition, when the electrochromic device 1000 is applied to the vehicle side window, since the touch signal processing module 5 is integrated in the electrochromic device 1000, the touch signal processing module 5 follows the lifting and lowering of the side window, reducing the adverse effect of the lifting and lowering of the side window on the routing between the touch signal processing module 5 and the conductive pattern 4.

[0089] refer to Figure 2 、 Figure 3 、 Figure 5 and Figure 6In some embodiments, the area enclosed by the conductive pattern 4 is less than 1 / 5 of the surface area of the substrate layer 2. It can be understood that the area enclosed by the conductive pattern 4 is less than 1 / 5 of the surface area of the substrate layer 2. The conductive pattern 4 is arranged within a reasonable area range, thereby reducing the impact on the transmittance of the substrate layer 2. Here, the "enclosed area" refers to the area enclosed by the outer contour of the conductive pattern 4.

[0090] In some embodiments, the area of the region enclosed by the conductive pattern 4 may also be larger than 1 / 5 of the surface area of the base layer 2 to form a larger touch area.

[0091] In some embodiments, the conductive pattern 4 is printed on the surface 3 of the base layer 2 or the surface 3 of the electrochromic device 1 .

[0092] The conductive pattern 4 is formed on the surface 3 by printing using a conductive medium, which is simple and efficient to manufacture and process, thereby improving production efficiency. Furthermore, the printed conductive pattern 4 is relatively thin after being formed, which has little impact on the thickness of the stacked structure of the electrochromic device 1000.

[0093] Specifically, the conductive pattern 4 is formed on the surface 3 of the base layer 2 by a screen printing process, which can form a pattern with high precision and clear layers.

[0094] In some embodiments, the conductive medium may be a metal conductive paste or a conductive glue, etc. The conductive medium may be one or more of a conductive adhesive, a conductive acrylic, and a conductive silver glue, etc.

[0095] In one embodiment, both substrate layers 2 are made of glass. When the electrochromic device 1000 is used in a vehicle window, the substrate layer 2 needs to be formed into a specific curved shape through a thermal bending process. Before the substrate layer 2 is thermally bent, the conductive pattern 4 is printed on the surface 3 of the substrate layer 2. During the thermal bending process, the conductive pattern 4 is heated along with the substrate layer 2, thereby improving the connection stability between the conductive pattern 4 and the substrate layer 2.

[0096] In some embodiments, the conductive pattern 4 is protruded from the base layer 2 or the surface 3 of the electrochromic device 1 .

[0097] For example, the surface 3 of the substrate layer 2 is planar, and the conductive pattern 4 is directly screen-printed on one surface 3 of the substrate layer 2. After being formed, the conductive pattern 4 protrudes from one surface 3 of the substrate layer 2 away from the other surface 3 along the thickness direction of the electrochromic device 1. The thickness direction of the electrochromic device 1 is the stacking direction of the electrochromic device 1 and the two substrate layers 2.

[0098] In some embodiments, the thickness range of the conductive pattern 4 is 5μm-100μm; the thickness range of the conductive pattern 4 can be specifically set to any thickness range of 5μm-10μm, 10μm-15μm, 15-20μm, 20μm-25μm, 25μm-30μm, 30μm-40μm, 40μm-50μm, 50μm-60μm, 60μm-70μm, 70μm-80μm, 80μm-90μm and 90μm-10μm.

[0099] In some other embodiments, the outer surface of the base layer 2 and / or the interior of the electrochromic device 1000 are provided with grooves (not shown), and the grooves are used to accommodate the conductive pattern 4. The case where the interior of the electrochromic device 1000 has grooves includes the case where the inner surface of the base layer 2 has grooves.

[0100] The groove can be formed by processes such as chemical etching, grinding, or laser engraving. In one embodiment, a groove is provided on one surface 3 of the base layer 2, with the groove being recessed from one surface 3 toward the other surface 3 of the base layer 2. A conductive pattern 4 is formed on the inner wall of the groove by printing, or a conductive medium is filled into the groove and cured to form the conductive pattern 4. The conductive pattern 4 is completely or at least partially contained within the groove.

[0101] In one embodiment, the shape of the groove corresponds to the conductive pattern, that is, the groove is filled with a conductive medium, and the conductive pattern is formed after the conductive medium is solidified.

[0102] In the embodiment of the present application, at least a portion of the conductive pattern 4 is accommodated in the groove, so that the thickness of the conductive pattern 4 does not increase additionally or does not increase too much the overall thickness of the electrochromic device 1000, thereby reducing the impact of the conductive pattern 4 on the thickness of the electrochromic device 1000.

[0103] In some embodiments, the depth of the groove ranges from 5 μm to 0.15 mm. Specifically, the thickness of the groove can be set to any one of 5 μm, 0.01 mm, 0.02 mm, 0.04 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, and 0.15 mm. It is understood that the depth of the groove is configured to be greater than the thickness of the conductive pattern 4 so that the conductive pattern 4 is completely contained within the groove.

[0104] refer to Figures 1 to 6 In some embodiments, the conductive pattern 4 may be provided on the inner surface of any base layer 2 , and a touch signal processing module 5 may be fixed on the outer surface of any base layer 2 .

[0105] Specifically, see Figure 3 and Figure 6 According to the aforementioned method of this application, one of the two substrate layers 2 is defined as the outer substrate layer 8, and the other is defined as the inner substrate layer 7. The surface of the outer substrate layer 7 facing the electrochromic device 1 is defined as the inner surface of the outer substrate layer 8, and the surface of the outer substrate layer 8 facing away from the electrochromic device 1 is defined as the outer surface of the outer substrate layer 8. Similarly, the surface of the inner substrate layer 7 facing the electrochromic device 1 is defined as the inner surface of the inner substrate layer 7, and the surface of the inner substrate layer 7 facing away from the electrochromic device 1 is defined as the outer surface of the inner substrate layer 7.

[0106] In some embodiments, the conductive pattern 4 is arranged on the inner surface of the outer base layer 7 or the inner surface of the inner base layer 8, that is, the conductive pattern 4 is arranged inside the electrochromic device 1000. The conductive pattern 4 is isolated from the external air, which can effectively protect the conductive pattern 4 and improve the service life.

[0107] In some embodiments, the touch signal processing module 5 is fixed on the outer surface of the outer base layer 7 or the outer surface of the inner base layer 8. The touch signal processing module 5 can be connected and fixed on the outer surface of the outer base layer 7 or the outer surface of the inner base layer 8 by methods including but not limited to bonding or hot melting.

[0108] refer to Figure 2 、 Figure 3 In some embodiments, one surface 3 of a substrate layer 2 includes a conductive pattern 4, and the other surface 3 thereof is used to fix the touch signal processing module 5. The electrochromic device 1000 further includes a wire 9, which includes a first segment 901, a second segment 902, and a third segment 903 connected in sequence. The first segment 901 and the third segment 903 are respectively used to electrically connect the conductive pattern 4 and the touch signal processing module 5, wherein, along the thickness direction X, the first segment 901, a substrate layer 2, and the third segment 903 are stacked in sequence.

[0109] In one embodiment, along the thickness direction X, the thickness of the first segment 901 is less than the thickness of one substrate layer 2 .

[0110] In one embodiment, along the extension direction of the first segment 901 , the length of the first segment 901 is greater than the length of the third segment 903 , and greater than the length of the second segment 902 .

[0111] In one embodiment, the length of the first segment 901 along the extension direction of the first segment 901 is less than half the length of one substrate layer 2 .

[0112] In some embodiments, the conductive pattern 4 is formed on the inner surface of the inner substrate layer 7, and the touch signal processing module 5 is fixed to the outer surface of the inner substrate layer 7. The first segment 901 of the conductive wire 9 is located between the inner substrate layer 7 and the electrochromic device 1 and is electrically connected to the conductive pattern 4. It is understood that the length of the first segment 901 in the extension direction is less than half the length of the inner substrate layer 7 to avoid the first segment 901 being too long, which would increase the transmission distance. The thickness of the first segment 901 is less than that of the inner substrate layer 7. The conductive wire 9 can be flat, meaning that the thickness of the conductive wire 9 in the thickness direction X is relatively thin, minimizing the impact on the thickness of the stacked structure. The conductive wire 9 can also have other shapes. The second segment 902 of the conductive wire 9 is adjacent to the side edge of the outer substrate layer 7 and extends perpendicular to the thickness direction X. The third segment 903 of the conductive wire 9 is located on the outer surface of the inner substrate layer 7 and is electrically connected to the touch signal processing module 5. Consequently, the conductive wire 9 effectively enables transmission of signals between the conductive pattern 4 and the touch signal processing module 5.

[0113] In yet other embodiments, the conductive pattern 4 is formed on the inner surface of the outer substrate layer 8, and the touch signal processing module 5 is fixed to the outer surface of the outer substrate layer 8. The first segment 901 of the conductive wire 9 is located between the outer substrate layer 8 and the electrochromic device 1 and is electrically connected to the conductive pattern 4. It is understood that the length of the first segment 901 in the extension direction is less than half the length of the outer substrate layer 8 to avoid excessive length of the first segment 901, which would increase the transmission distance. The thickness of the first segment 901 is less than that of the outer substrate layer 8. The conductive wire 9 is preferably flat, meaning that the conductive wire 9 is thin in the thickness direction X, minimizing its impact on the thickness of the stacked structure. The second segment 902 of the conductive wire 9 is adjacent to the side edge of the outer substrate layer 8 and extends perpendicular to the thickness direction X. The third segment 903 of the conductive wire 9 is located on the outer surface of the outer substrate layer 8 and is electrically connected to the touch signal processing module 5. Consequently, the conductive wire 9 effectively enables transmission of electrical signals between the conductive pattern 4 and the touch signal processing module 5.

[0114] In the embodiment of the present application, the conductive pattern 4 and the touch signal processing module 5 are integrated onto the inner and outer surfaces of the same substrate layer 2. This helps shorten the length of the wire 9 between the conductive pattern 4 and the touch signal processing module 5, thereby shortening the electrical transmission distance between the conductive pattern 4 and the touch signal processing module 5 and improving touch sensitivity. Furthermore, the thickness direction of the wire 9 is parallel to the thickness direction X of the electrochromic device 1. The first section 901 of the wire is laminated between the substrate layer 2 and the electrochromic device 1, reducing the impact of the wire 9 on the thickness of the electrochromic device 1000 and facilitating miniaturization of the electrochromic device 1000. Furthermore, the use of the wire 9 increases the contact area between the wire 9 and the conductive pattern 4, thereby improving the connection reliability between the wire 9 and the conductive pattern 4.

[0115] It can be understood that, regardless of whether the conductive pattern 4 is disposed on the inner surface of the outer substrate layer 8 or the inner surface of the inner substrate layer 7, the length of the first segment 901 of the conductive wire 9 is greater than the length of the third segment 903, and greater than the length of the second segment 902. This facilitates controlling the total length of the conductive wire 9 to be within an appropriate length range. Furthermore, controlling the length of the third segment 903 to be less than the length of the first segment 901 can shorten the electrical transmission distance between the conductive pattern 4 and the touch signal processing module 5, thereby improving touch sensitivity.

[0116] refer to Figure 5 、 Figure 6 、 Figure 7 In some embodiments, among the two base layers 2, the inner surface of the inner base layer 7 includes a conductive pattern 4, and the outer surface of the outer base layer 8 is used to fix the touch signal processing module 5. The electrochromic device 1000 is provided with a notch 10, and the notch 10 is used to accommodate a connecting line 11 between the touch signal processing module 6 and the conductive pattern 4, wherein the notch 10 penetrates the outer base layer 8 and the electrochromic device 1 along the thickness direction X.

[0117] refer to Figure 6 、 Figure 7 In some embodiments, the conductive pattern 4 is formed on the inner surface of the inner substrate layer 7, and the touch signal processing module 5 is fixed to the outer surface of the outer substrate layer 8. A notch 10 penetrates the outer substrate layer 8 and the electrochromic device 1. The touch signal processing module 5 and the conductive pattern 4 are electrically connected via a connecting wire 11, which is located within the notch 10. The provision of the notch 10 facilitates the electrical connection between the touch signal processing module 5 and the conductive pattern 4. The location of the connecting wire 11 within the notch facilitates regular wiring layout and reduces the risk of wiring damage caused by exposure of the connecting wire 11.

[0118] In yet other embodiments, the conductive pattern 4 is formed on the inner surface of the outer substrate layer 8, and the touch signal processing module 5 is fixed to the outer surface of the inner substrate layer 7. A notch 10 penetrates the inner substrate layer 7 and the electrochromic device 1. The touch signal processing module 5 and the conductive pattern 4 are electrically connected via a connecting wire 11, which is located within the notch 10. The provision of the notch 10 facilitates electrical connection between the touch signal processing module 6 and the conductive pattern 4. The location of the connecting wire 11 within the notch facilitates regular wiring layout and reduces the risk of exposed connecting wire 11, which could lead to damage.

[0119] Continue to refer Figure 6 In some embodiments, the conductive pattern 4 is at least partially located within the notch 10 and is welded to the connecting wire 11. One end of the connecting wire 11 is welded to the conductive pattern 4 to form a welding point 12 within the notch 10. The other end of the connecting wire 11 extends outside the notch 10 and is electrically connected to the touch signal processing module 5.

[0120] It is understandable that the connecting wire 11 can be directly welded to the conductive pattern 4 in the notch 10, which is convenient for connection and has a stable structure. The welding point 12 is located in the notch 10 and does not affect the thickness of the stacked structure. The structural design is ingenious.

[0121] The shape and structure of the notch 10 are not limited thereto, as long as it can accommodate the connecting wire 11 and the solder joint 12; for example, refer to Figure 7 The notch 10 is arranged at the edge of the base layer 2, and the notch 10 passes through the edge of the base layer 2, that is, the edge of the base layer 2 is concave in the notch 10; alternatively, the notch 10 may not pass through the edge of the base layer 2, and the cross-sectional shape of the notch 10 on the surface 3 of the base layer 2 may be, but is not limited to, rectangular, circular, triangular, etc.

[0122] refer to Figure 4 、 Figure 6 、 Figure 7 In some embodiments, the conductive pattern 4 includes a touch portion 41 and a connecting portion 42 connected to the touch portion 41. The outer contour of the connecting portion 42 encloses an area smaller than the outer contour of the touch portion 42. At least a portion of the connecting portion 42 is located within the notch 10 and is used to connect to the solder joint 12.

[0123] The touch portion 41 is located outside the notch 10. In one embodiment, the connecting portion 42 is linear.

[0124] Along the thickness direction X, the projected area of the touch portion 41 is larger than the projected area of the connecting portion 42. In the embodiment of the present application, the area enclosed by the outer contour of the conductive pattern 4 is reduced.

[0125] In one embodiment, the color of the connection portion 42 is lighter than the color of the touch portion 41. In one embodiment, the connection portion 42 is transparent and colorless, while the touch portion 41 has a color.

[0126] In some embodiments, the electrochromic device 1000 further includes a light-transmitting insulating layer (not shown), which covers the outer surface of the conductive pattern 4 .

[0127] In some embodiments, the conductive pattern 4 can be disposed on the outer surface of the inner substrate layer 7. The outer surface of the conductive pattern 4 is the surface of the conductive pattern 4 facing away from the electrochromic device 1. It is understood that to effectively protect the conductive pattern 4, an insulating layer is provided on the outer surface of the conductive pattern 4 to prevent direct exposure of the conductive pattern 4. In one embodiment, the touch signal processing module 5 is fixed to the outer surface of the inner substrate layer 7 and spaced apart from the conductive pattern 4, which helps shorten the connection path between the touch signal processing module 5 and the conductive pattern 4.

[0128] In other embodiments, the conductive pattern 4 may also be disposed on the outer surface of the outer substrate layer 8, with the outer surface of the conductive pattern 4 being the surface facing away from the electrochromic device 1. It is understood that to effectively protect the conductive pattern 4, an insulating layer is provided on the outer surface of the conductive pattern 4 to prevent direct exposure to the outside, effectively protecting the conductive pattern 4 and improving its service life. In one embodiment, the touch signal processing module 5 is fixed to the outer surface of the outer substrate layer 8 and spaced apart from the conductive pattern 4, which helps shorten the connection path between the touch signal processing module 5 and the conductive pattern 4.

[0129] It can be understood that the insulating layer can be a transparent or translucent insulating adhesive layer, which can be directly bonded to the outer surface of the conductive pattern 4, and is easy and quick to lay out; for example, the insulating layer can use UV (Ultraviolet Rays) curing adhesive, which has high bonding strength, can be cured quickly, and is completely transparent after curing.

[0130] In some embodiments, any surface 3 of the electrochromic device 1 includes a conductive pattern 4. The outer surface of any substrate layer 2 is used to fix the touch signal processing module 5.

[0131] It can be understood that the conductive pattern 4 can be set on any surface 3 of the electrochromic device 1, that is, the conductive pattern 4 is set inside the electrochromic device 1000, and the conductive pattern 4 is isolated from the external air, which effectively protects the conductive pattern 4 and improves the service life.

[0132] In some embodiments, the touch signal processing module 5 is fixed on the outer surface of the inner base layer 7 or the outer surface of the outer base layer 8. The touch signal processing module 5 can be connected and fixed on the outer surface of the inner base layer 7 or the outer surface of the outer base layer 8 by, but not limited to, bonding, hot melting, etc.

[0133] In some embodiments, the electrochromic device 1000 of the electrochromic device 1 further includes a wire electrically connected between the conductive pattern 4 and the touch signal processing module 5. A conductor (not shown) surrounds the periphery of the electrochromic device 1, and the wire is insulated from the conductor. The wire may be a flat wire.

[0134] In this embodiment, the thickness direction of the wire is parallel to the thickness direction X, and the wire is at least partially stacked between one of the base layers 2 and the electrochromic device 1, which reduces the impact of the wire 9 on the thickness of the electrochromic device 1000 and is conducive to the miniaturization of the electrochromic device 1000.

[0135] It can be understood that when a conductive pattern 4 is provided on the surface 3 of the electrochromic device 1, the wire will contact the surface of the electrochromic device 1; and the periphery of the electrochromic device 1 has a conductor for conductive connection with an external power supply, and the conductor is a conductive material such as copper foil or conductive glue; the conductor is partially covered on the surface 3 of the electrochromic device 1, so it is necessary to insulate and isolate the wire from the conductor to avoid a short circuit between the electrochromic device 1 and the conductive pattern 4.

[0136] In one example, the method of insulating and isolating the wire from the conductor is as follows: coating the portion where the wire contacts the conductor with an insulating adhesive layer; or coating the portion where the conductor contacts the wire with an insulating adhesive layer; or coating both the wire and the conductor with an insulating adhesive layer; so that the wire and the conductor are effectively isolated by the insulating adhesive layer, thereby improving product reliability.

[0137] In one embodiment, the touch signal processing module 5 can also be fixed inside the electrochromic device 1000. For example, the inner surface of the outer base layer 7 is provided with a receiving groove that is recessed from the inner surface toward the outer surface, and the touch signal processing module is received within the receiving groove. In this embodiment of the present application, the touch signal processing module 5 is disposed inside the base layer 2, which helps to reduce the thickness of the electrochromic device 1000.

[0138] refer to Figure 9 、 Figure 10 In some embodiments, the electrochromic device 1000 further includes an indicator light 13 , which operates when the conductive pattern 4 generates a touch signal.

[0139] The projection position of the indicator light 13 in the thickness direction X and the projection position of the conductive pattern 4 in the thickness direction X are arranged side by side or overlapped.

[0140] In one embodiment, the indicator light 13 is electrically connected to the touch signal processing module 5. When the touch signal processing module 5 receives the touch signal, the touch signal processing module 5 can also be used to control the operation of the indicator light 13, or the touch signal processing module 5 sends a signal to the control unit to operate the indicator light 13, and the control unit controls the operation of the indicator light 13, or the control unit controls the operation of the indicator light 13 through the touch signal processing module 5. The indicator light 13 will light up when it is running. When the dimming of the electrochromic device 1 is completed, the control unit can control the indicator light 13 to turn off through the touch signal processing module 5, or the control unit can directly control the indicator light 13 to turn off. The user can intuitively understand the dimming status of the electrochromic device 1 through the light changes of the indicator light 13, thereby improving the user experience.

[0141] In one embodiment, indicator light 13 is electrically connected to a control unit. When touch signal processing module 5 receives a touch signal, it sends a signal to the control unit to activate indicator light 13, which then operates the control unit. When dimming of electrochromic device 1 is complete, the control unit directly turns indicator light 13 off.

[0142] In some embodiments, the electrochromic device 1000 includes a connecting adhesive layer 14. The indicator light 13 is disposed between the base layer 2 and the electrochromic device 1, with the connecting adhesive layer 14 encapsulating the indicator light 13. The connecting adhesive layer 14 serves to secure the base layer 2 to the electrochromic device 1. In one embodiment, the thickness of the indicator light 13 is less than that of the connecting adhesive layer 14.

[0143] Specifically, the connecting adhesive layer 14 is light-transmissive and covers the indicator light 13 , so that the indicator light 13 does not affect the thickness of the stacked structure of the electrochromic device 1000 .

[0144] In some embodiments, the thickness of the connecting adhesive layer 14 ranges from 0.1 mm to 1 mm. Specifically, the thickness of the connecting adhesive layer 14 can be any one of 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, and 1.0 mm.

[0145] It can be understood that the conductive pattern 4 is arranged on the surface 3 of the base layer 2, and the indicator light 13 is arranged in the connecting adhesive layer 14, so that the setting position of the conductive pattern 4 and the setting position of the indicator light 13 do not interfere with each other. The indicator light 13 can be arranged overlapping with the conductive pattern 4; the indicator light 13 can also be arranged side by side with the conductive pattern 4; as long as the indicator light 13 is close to the conductive pattern 4 so as to be able to effectively feedback the touch dimming state.

[0146] In some embodiments, the surface 3 of the base layer 2 may be provided with a receiving groove (not shown), and the receiving groove is used to receive the indicator light 13 .

[0147] Understandably, to reduce the impact of indicator light 13 on the thickness of base layer 2, a receiving groove is provided on surface 3 of base layer 2, and indicator light 13 is mounted within the receiving groove. The depth of the receiving groove is greater than or equal to the thickness of indicator light 13, so that indicator light 13 does not protrude from base layer 2, does not increase the thickness of electrochromic device 1000, and thus does not affect the stacking structure between base layer 2 and electrochromic device 1. The receiving groove can be formed by etching, laser engraving, grinding, or other methods, which are not limited here.

[0148] Specifically, when the receiving groove and the conductive pattern 4 are located on the same surface 3 of the same base layer 2, the projection position of the indicator light 13 in the thickness direction X and the projection position of the conductive pattern 4 in the thickness direction X are arranged side by side. When the receiving groove and the conductive pattern 4 are located on different surfaces 3 of different base layers 2 or on different surfaces 3 of the same base layer 2, the projection position of the indicator light 13 in the thickness direction X and the projection position of the conductive pattern 4 in the thickness direction X can be arranged side by side or overlapped, so that the indicator light 13 is close to the conductive pattern 4 to effectively feedback the touch dimming state.

[0149] In some embodiments, the base layer 2 has a hollow cavity (not shown), which is used to accommodate the indicator light.

[0150] Specifically, a hollow cavity is formed inside the base layer 2, and the cavity has an opening formed at the side of the base layer 2, and then the indicator light 13 can be installed in the cavity from the opening; the setting position of the indicator light 13 and the setting position of the conductive pattern 4 do not interfere with each other, and the indicator light 13 can be set overlapping with the conductive pattern 4; the indicator light 13 can also be set side by side with the conductive pattern 4; so that the indicator light 13 is close to the conductive pattern 4 so as to be able to effectively feedback the touch dimming state.

[0151] refer to Figure 1 、 Figure 4 In some embodiments, each substrate layer 2 includes a visible area 201 and a non-visible area 202, with the non-visible area 202 surrounding the visible area 201. In one embodiment, the area of the visible area 202 is larger than that of the non-visible area 202. The touch signal processing module 5 is fixed within the non-visible area 202, and the conductive pattern 4 can be located entirely or partially within the visible area 201.

[0152] As can be understood, the electrochromic device 1 has a color-changing region. The electrochromic material within the color-changing region undergoes a reversible change in color and transmittance under the action of voltage or current. The projection of the color-changing region of the electrochromic device 1 along the thickness direction X coincides with the visible region 201 of the substrate layer 2. This means that the user can intuitively observe the changes in color and transmittance of the electrochromic device 1 from the visible region 201. The conductive pattern 4 is located within the visible region 202, making it easy for the user to visually see and touch the conductive pattern 4.

[0153] The touch signal processing module 5 is fixed on the non-visible area 202. The non-visible area 202 is opaque and can shield the touch signal processing module 5 so that the touch signal processing module 5 is not exposed. The user can only see the conductive pattern 4 in the visible area 201, with a simple structure and appearance.

[0154] It is understandable that the shape of the visible area 202 can be adjusted accordingly to follow the outer contour of the electrochromic device 1000; the visible area 202 can be rectangular, elliptical, or irregular in shape.

[0155] A second aspect of an embodiment of the present application further provides an electric vehicle, comprising a plurality of windows and an on-board power supply, wherein at least one window adopts the electrochromic device 1000 as described above, and the electrochromic device 1000 is used to receive power from the on-board power supply to change the transmittance of the electrochromic device 1000.

[0156] The electric vehicle includes a two-wheeled, three-wheeled, or four-wheeled vehicle. The electric vehicle can be a pure electric vehicle, a hybrid electric vehicle, an extended-range electric vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle.

[0157] Specifically, the electrochromic device 1000 of the present application can be used as the window of an electric vehicle, including but not limited to at least one of the side windows, windshield, rear windshield and sunroof; then the conductive pattern 4 will be revealed on the window, and the user only needs to directly touch the conductive pattern 4 on the window to adjust the color and transmittance of the window. The operation is very convenient, which improves the user experience.

[0158] In some embodiments, the two substrate layers 2 of the electrochromic device 1000 form the inner layer (facing the interior) and outer layer (facing the exterior) of the vehicle window, and the conductive pattern 4 is disposed on the substrate layer 2 located within the vehicle. This allows the user to adjust the window color and transmittance by simply touching the conductive pattern 4 while inside the vehicle, making adjustments quick and easy.

[0159] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An electrochromic device, characterized in that: It includes an electrochromic device, two substrate layers respectively located on both sides of the electrochromic device, at least one conductive pattern and at least one touch signal processing module; the conductive pattern and the touch signal processing module are arranged on the outer surface of the substrate layer or inside the color-changing device, and the conductive pattern is used to generate a touch signal according to the user's touch; the touch signal processing module is electrically connected to the conductive pattern, and is used to receive the touch signal and generate a control signal for controlling the electrochromic device.

2. The electrochromic device according to claim 1, wherein: The conductive pattern is provided on the inner surface of the base layer and / or on two opposite surfaces of the electrochromic device; or a groove is provided on the outer surface of the base layer and / or inside the electrochromic device, and the conductive pattern is located in the groove.

3. The electrochromic device according to claim 1, wherein: The electrochromic device also includes a wire, which includes a first segment, a second segment, and a third segment connected in sequence. The first segment and the third segment are electrically connected to the conductive pattern and the touch signal processing module, respectively. Along the thickness direction of the electrochromic device, the first segment, the one base layer, and the third segment are stacked in sequence; the length of the first segment is greater than the length of the second segment and the third segment, and less than half the length of the one base layer.

4. The electrochromic device according to claim 1, wherein: The electrochromic device is provided with a notch, which penetrates one of the two base layers and the electrochromic device along the thickness direction of the electrochromic device and is used to accommodate a connecting wire connecting the touch signal processing module and the conductive pattern.

5. The electrochromic device according to claim 4, characterized in that: The conductive pattern is at least partially located in the notch; one end of the connecting wire forms a solder joint with the conductive pattern in the notch; the other end of the connecting wire is located outside the notch and is electrically connected to the touch signal processing module.

6. The electrochromic device according to claim 5, characterized in that: The conductive pattern includes a touch portion and a connecting portion connected to the touch portion; the area enclosed by the outer contour of the connecting portion is smaller than the area enclosed by the outer contour of the touch portion, and at least a portion of the connecting portion is located in the notch and connected to the solder joint; and / or, The color of the connecting portion is lighter than the color of the touch portion.

7. The electrochromic device according to claim 1, wherein: The electrochromic device further includes a light-transmitting insulating layer, wherein the insulating layer covers the conductive pattern.

8. The electrochromic device according to claim 1, wherein: The electrochromic device also includes an indicator light and a connecting adhesive layer. The indicator light operates when the conductive pattern generates a touch signal. The indicator light is arranged between the base layer and the electrochromic device, and the connecting adhesive layer covers the indicator light. Alternatively, a receiving groove is provided on the outer surface of the base, and the indicator light is located in the receiving groove. Alternatively, the base layer has a hollow cavity, and the indicator light is located in the cavity.

9. The electrochromic device according to claim 1, wherein: Each of the base layers includes a visible area and a non-visible area, the non-visible area surrounds the visible area, the touch signal processing module is fixed in the non-visible area, and at least a portion of the conductive pattern is located in the visible area.

10. An electric vehicle, characterized in that: The invention comprises a plurality of vehicle windows and a vehicle power supply, wherein at least one of the vehicle windows adopts the electrochromic device according to any one of claims 1 to 9, and the electrochromic device is used to receive power from the vehicle power supply to change the transmittance of the electrochromic device.

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