Electrochromic device and terminal product

Abstract

The utility model provides an electrochromic device and a terminal product. The electrochromic device comprises a first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer and a second substrate layer which are sequentially stacked, a first groove and a second groove are formed in the electrochromic device, the first groove at least penetrates through the first conducting layer, the electrochromic layer and the second conducting layer, and the second groove at least penetrates through the first conducting layer and the electrochromic layer. According to the electrochromic device, the first bus bar and the second bus bar are arranged in the first groove and the second groove, so that the first bus bar is electrically connected with the first conducting layer, and the second bus bar is electrically connected with the second conducting layer, and the color changing function of the electrochromic device and the color changing effect of the terminal product shell are achieved.

Description

Technical Field

[0001] The present application relates to the field of electrochromic technology, and in particular to an electrochromic device and a terminal product. Background Art

[0002] With the rapid development of science and technology, the appearance design of product shells has become increasingly important. Electrochromic devices can change their colors by changing current or voltage, thereby achieving changes in the color of the product shell. In the prior art, in order to make the electrochromic device change color normally, it is necessary to connect the internal electrical connection structure of the electrochromic device to the wire, and use the wire and the external power supply to form electrical conduction. Therefore, how to design the internal electrical connection structure of the electrochromic device has become a technical difficulty. Summary of the invention

[0003] The purpose of the present application is to provide an electrochromic device and a terminal product, which are used to solve the technical problem of electrical conduction between the electrical connection structure and the external power supply in the electrochromic device in the related art.

[0004] In the first aspect, the present application provides an electrochromic device, comprising a first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer and a second substrate layer stacked in sequence; a first groove and a second groove are provided on the electrochromic device, the first groove at least passes through the first conductive layer, the electrochromic layer and the second conductive layer, and the second groove at least passes through the first conductive layer and the electrochromic layer; a first bus bar is provided on the side of the first conductive layer away from the first substrate layer, and the first bus bar is connected to the first conductive layer through the first groove; a second bus bar is provided on the side of the second conductive layer away from the second substrate layer, and the second bus bar is connected to the second conductive layer through the second groove.

[0005] In one embodiment, the portion where the first groove passes through the first substrate layer or the second substrate layer is the first region, the portion where the first groove passes through the first conductive layer or the second conductive layer is the second region, and the orthographic projection of the second region on the electrochromic layer falls within the orthographic projection of the first region on the electrochromic layer.

[0006] In one embodiment, the portion where the second groove passes through the first substrate layer or the second substrate layer is the third region, and the portion where the second groove passes through the first conductive layer or the second conductive layer is the fourth region, and the orthographic projection of the fourth region on the electrochromic layer falls within the orthographic projection of the third region on the electrochromic layer.

[0007] In one embodiment, within the first groove, an orthographic projection of the second region of the first conductive layer on the electrochromic layer falls within an orthographic projection of the first bus bar on the electrochromic layer.

[0008] In one embodiment, the first conductive layer forms a protrusion in the first groove, and the protrusion overlaps the first bus bar.

[0009] In one embodiment, the electrochromic device further includes a sealing portion, which is at least partially disposed in the first groove and covers the first bus bar; and the sealing portion is at least partially disposed in the second groove and covers the second bus bar.

[0010] In one embodiment, it also includes a first lead-out electrode and a second lead-out electrode, the first lead-out electrode is arranged on a side of the first bus bar away from the first conductive layer, and the first lead-out electrode is electrically connected to the first bus bar; the second lead-out electrode is arranged on a side of the second bus bar away from the second conductive layer, and the second lead-out electrode is electrically connected to the second bus bar.

[0011] In one embodiment, the first groove is disposed at an edge of the electrochromic device, and the first lead-out electrode extends away from at least one end of the first bus bar to a side of the electrochromic device.

[0012] In one embodiment, the second groove is disposed at an edge of the electrochromic device, and the second lead-out electrode extends away from at least one end of the second bus bar to a side edge of the electrochromic device.

[0013] In one embodiment, the first groove is disposed inside the electrochromic device, the first extraction electrode extends through the first groove to the first substrate layer or the second substrate layer, and the sealing portion at least partially covers the first bus bar and the first extraction electrode.

[0014] In one embodiment, the second groove is disposed inside the electrochromic device, the second extraction electrode extends through the second groove to the first substrate layer, and the sealing portion at least partially covers the second bus bar and the second extraction electrode.

[0015] In one embodiment, the first groove and the second groove are arranged on the same side of the electrochromic device, the first lead electrode is connected to the first bus bar through the first groove, and the second lead electrode is connected to the second bus bar through the second groove.

[0016] In one embodiment, a periphery of the first conductive layer is at least partially not covered by the first substrate layer; and / or a periphery of the second conductive layer is at least partially not covered by the second substrate layer.

[0017] In one embodiment, the edge of the electrochromic device includes a sealing frame, which at least partially covers the periphery of the second conductive layer away from the electrochromic layer and at least partially covers the periphery of the first substrate layer close to the first conductive layer.

[0018] In one embodiment, the edge of the electrochromic device includes a sealing frame, which at least partially covers the periphery of the first conductive layer away from the electrochromic layer, and at least partially covers the periphery of the second substrate layer close to the second conductive layer.

[0019] In a second aspect, the present application provides a terminal product, comprising the electrochromic device described in the first aspect, wherein the terminal product comprises any one of a rearview mirror, a curtain wall, a car sunroof, a car side window, a car windshield, an electronic product housing, glasses, a vehicle, and a display panel.

[0020] The electrochromic device and terminal product provided by the present application are configured such that the first bus bar and the first conductive layer are electrically connected, and the second bus bar and the second conductive layer are electrically connected, by arranging the first bus bar and the second bus bar in the first groove and the second groove. In addition, the first groove penetrates the part of the electrochromic device to form a receiving space, which is convenient for connecting the first bus bar and the external wire; the second groove penetrates the part of the electrochromic device to form a receiving space, which is convenient for connecting the second bus bar and the external wire, and finally enables the first bus bar and the second bus bar to be electrically connected to the external power supply at the same time, so as to realize the color changing function of the electrochromic device and the color changing effect of the terminal product shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. 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 creative work.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 1 ;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 2 ;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 3 ;

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 4 ;

[0026] Figure 5 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 5 ;

[0027] Figure 6 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 6 ;

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 7 ;

[0029] Figure 8 A schematic diagram of the structure of an electrochromic device from one viewing angle provided by an embodiment of the present application;

[0030] Fig. 9 A schematic structural diagram of an electrochromic device from one viewing angle provided by another embodiment of the present application;

[0031] Fig.10 A schematic structural diagram of an electrochromic device from one viewing angle provided in yet another embodiment of the present application;

[0032] Fig.11 A schematic structural diagram of an electrochromic device from one viewing angle provided in yet another embodiment of the present application;

[0033] Fig.12 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 8 ;

[0034] Fig.13 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 9 ;

[0035] Fig.14 Schematic diagram of the three-dimensional structure of the stacked arrangement of the electrochromic device provided in the embodiment of the present application Figure 10 .

[0036] Description of reference numerals:

[0037] 1000-electrochromic device; 110-first substrate layer; 120-first conductive layer; 1201-protrusion; 130-electrochromic layer; 140-second conductive layer; 150-second substrate layer; 210-first groove; 220-second groove; 310-first bus bar; 320-second bus bar; 410-first lead electrode; 420-second lead electrode; 500-sealing part; 510-first sealing material; 520-second sealing material; 600-sealing glue frame; 610-first sealant; 620-second sealant; 2000-terminal product. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly or indirectly disposed on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0040] References to "one embodiment", "some embodiments" or "an embodiment" described in the specification of this application mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some other embodiments", "in some other embodiments", etc., which appear at different places in this specification, do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. In addition, in one or more embodiments, particular features, structures or characteristics may be combined in any suitable manner.

[0041] In a first aspect, the present application provides an electrochromic device, referring to Figure 1 and Figure 2, which is a schematic diagram of a three-dimensional structure of a stacked electrochromic device provided in an embodiment of the present application, wherein the electrochromic device 1000 provided in this embodiment comprises a first substrate layer 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, and a second substrate layer 150 which are stacked in sequence. The electrochromic device 1000 is provided with a first groove 210 and a second groove 220, wherein the first groove 210 at least penetrates the first conductive layer 120, the electrochromic layer 130, and the second conductive layer 140, and the second groove 220 at least penetrates the first conductive layer 120 and the electrochromic layer 130. By arranging a first bus bar 310 and a second bus bar 320 in the first groove 210 and the second groove 220, the first bus bar 310 and the first conductive layer 120 are electrically connected, and the second bus bar 320 and the second conductive layer 140 are electrically connected, so as to realize the color changing function of the electrochromic device 1000. Specifically, the first substrate layer 110 is disposed on a side of the first conductive layer 120 away from the electrochromic layer 130, and is used to support the first conductive layer 120; the second substrate layer 150 is disposed on a side of the second conductive layer 140 away from the electrochromic layer 130, and is used to support the second conductive layer 140. The first substrate layer 110 and the second substrate layer 120 are flexible substrates with water and oxygen barrier layers. Optionally, the first substrate layer 110 or the second substrate layer 120 includes a substrate and a water and oxygen barrier layer plated on at least one side of the substrate.

[0042] Exemplarily, the substrate can be made of a flexible transparent resin material, including but not limited to any one of polyethylene terephthalate (PET), cycloolefin copolymer or triacetyl cellulose or a combination of at least two of them. Typical but non-limiting combinations include a combination of polyethylene terephthalate (PET) and cycloolefin copolymer, a combination of cycloolefin copolymer and triacetyl cellulose, a combination of polyethylene terephthalate (PET) and triacetyl cellulose, or a combination of PET, cycloolefin copolymer and triacetyl cellulose. Optionally, the water and oxygen barrier layer can be a dense metal oxide layer or an inorganic non-metal layer or a composite layer of organic materials and inorganic materials. For example, aluminum oxide, silicon oxide or a laminated composite structure of multiple materials.

[0043] It should be noted that, in the present embodiment, the water vapor transmission direction of the first substrate layer 110 is from one side surface of the first substrate layer 110 to the other side surface in the thickness direction, and the water vapor transmission direction of the second substrate layer 150 is from one side surface of the second substrate layer 150 to the other side surface in the thickness direction. Since the first conductive layer 120 and the second conductive layer 140 are closely attached to the first substrate layer 110 and the second substrate layer 150, respectively, the formation of an air layer between the substrate layer and the conductive layer can be effectively avoided, and the water vapor is further blocked from entering the electrochromic layer 130 through the substrate layer and the conductive layer, thereby ensuring the reliability of the electrochromic device 1000.

[0044] It can be understood that at least one of the first substrate layer 110 and the second substrate layer 150 of the electrochromic device 1000 of the embodiment of the present application is a transparent substrate, so as to demonstrate the change of the optical properties of the electrochromic device 1000 .

[0045] In some embodiments, at least one of the first conductive layer 120 and the second conductive layer 140 is a transparent structure. Specifically, the materials of the first conductive layer 120 and the second conductive layer 140 are transparent conductive materials, including but not limited to indium-tin oxide (ITO), aluminum zinc oxide (AZO), fluorine doped tin oxide (FTO), graphene, carbon nanotubes, metal grids or silver nanoparticles.

[0046] In some embodiments of the present application, a first bus bar 310 is provided on a side of the first conductive layer 120 away from the first substrate layer 110, and the first bus bar 310 is electrically connected to the first conductive layer 120 through the first groove 210. Specifically, the first bus bar 310 is disposed in the first groove 210, and there is a gap between the first bus bar 310 and the groove wall of the first groove 210, and the portion of the first bus bar 310 located in the first groove 210 is electrically connected to the first conductive layer 120, so that the first conductive layer 120 can be electrically connected to an external power source through the first bus bar 310.

[0047] In other embodiments, a second bus bar 320 is provided on a side of the second conductive layer 140 away from the second base layer 150, and the second bus bar 320 is electrically connected to the second conductive layer 140 through the second groove 220. Specifically, the second bus bar 320 is disposed in the second groove 220, and there is a gap between the second bus bar 320 and the groove wall of the second groove 220, and the portion of the second bus bar 320 located in the second groove 220 is electrically connected to the second conductive layer 140, so that the second conductive layer 140 can be electrically connected to an external power source through the second bus bar 320.

[0048] In some embodiments, the first bus bar 310 and the second bus bar 320 are set in the groove by bonding, so that a gap is maintained between the bus bar and the inner wall of the groove, which can simplify the bonding operation of the first bus bar 310 and the second bus bar 320 and reduce the processing difficulty of the electrochromic device 1000.

[0049] In other embodiments, the first bus bar 310 and the second bus bar 320 are set in the groove by spraying. In order to avoid the bus bars being sprayed outside the groove, the spraying range of the first bus bar 310 and the second bus bar 320 can be limited to the first groove 210 and the second groove 220 respectively to ensure that the spraying range of the bus bars is controllable.

[0050] Optionally, the first bus bar 310 and the second bus bar 320 may be conductive glue, conductive silver paste or conductive ink, but are not limited thereto. It is understood that the first bus bar 310 and the second bus bar 320 are essentially a conductive body that has a conductive ability and can be connected to the conductive layer. By electrically connecting the first bus bar 310 to the first conductive layer 120, the resistance value at the surface contact between the first conductive layer 120 and the first bus bar 310 can be reduced, and by electrically connecting the second bus bar 320 to the second conductive layer 140, the resistance value at the surface contact between the second conductive layer 140 and the second bus bar 320 can be reduced.

[0051] In the embodiment of the present application, the first bus bar 310 and the second bus bar 320 are respectively used to electrically connect to an external power source and realize the change of the color and transmittance of the electrochromic device 1000. Specifically, the first bus bar 310 and the second bus bar 320 are used to connect to an external power source, and the external power source is used to form an electric field between the first conductive layer 120 and the second conductive layer 140, so that the electrochromic layer 130 undergoes a stable and reversible color change under the action of the electric field.

[0052] It should be noted that the external power supply in the above embodiments may include an energy storage device (such as a battery or a rechargeable device, etc.) arranged on or outside the electrochromic device 1000, and may also include other power supply devices, such as a car's power interface (input and output ports, etc.), a building's power interface (input and output ports, etc.), etc.

[0053] refer to Figures 1 to 3In some embodiments of the present application, the first groove 210 at least penetrates the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, including the first groove 210 penetrating the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, or the first groove 210 penetrating the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, or the first groove 210 penetrating the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150, or the first groove 210 penetrating the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150.

[0054] Furthermore, in some other embodiments, the second groove 220 at least penetrates the first conductive layer 120 and the electrochromic layer 130, including the second groove 220 penetrating the first conductive layer 120 and the electrochromic layer 130, or the second groove 220 penetrating the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, or the second groove 220 penetrating the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, or the second groove 220 penetrating the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150, or the second groove 220 penetrating the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150.

[0055] In some embodiments, reference Figure 1, is a schematic structural diagram of an electrochromic device provided by the present application from a perspective, wherein the first substrate layer 110 and the second substrate layer 150 are both penetrated by the first groove 210 and the second groove 220. Specifically, the first groove 210 and the second groove 220 are cut on the composite layer of the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150, so that the first groove 210 penetrates the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150, and the first bus bar 310 is arranged on the first conductive layer 120 in the first groove 210, and the first bus bar 310 is connected to the first conductive layer 120 through the first groove 210, The first bus bar 310 is arranged on a side of the first conductive layer 120 away from the first base layer 110; the second groove 220 passes through the first base layer 110, the first conductive layer 120 and the electrochromic layer 130, the second groove 220 does not pass through the second conductive layer 140 and the second base layer 150, and the second bus bar 320 is arranged on the second conductive layer 140 in the second groove 220, the second bus bar 320 is connected to the second conductive layer 140 through the second groove 220, and the second bus bar 320 is arranged on a side of the second conductive layer 140 away from the second base layer 150.

[0056] In some embodiments, reference Figure 2, is a schematic structural diagram of an electrochromic device provided by the present application from a perspective, wherein the first substrate layer 110 and the second substrate layer 150 are not penetrated by the first groove 210 and the second groove 220. Specifically, the first groove 210 penetrates the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, and the first groove 210 does not penetrate the first substrate layer 110 and the second substrate layer 150; the second groove 220 penetrates the first conductive layer 120 and the electrochromic layer 130, and the second groove 220 does not penetrate the first substrate layer 110, the second conductive layer 140 and the second substrate layer 150. A first groove 210 and a second groove 220 are cut on the composite layer of the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, so that the first groove 210 penetrates the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140, and a first bus bar 310 is arranged on the first conductive layer 120 in the first groove 210, and the first bus bar 310 is connected to the first conductive layer 120 through the first groove 210; the second groove 220 penetrates the first conductive layer 120 and the electrochromic layer 130, and the first bus bar 310 is arranged in the second groove 220. 0, a second bus bar 320 is arranged on the second conductive layer 140 in the inner part, and the second bus bar 320 is connected to the second conductive layer 140 through the second groove 220, and then the first substrate layer 110, the second substrate layer 150 and the stack of the first conductive layer 120, the electrochromic layer 130 and the second conductive layer 140 are aligned and pressed to form the electrochromic device 1000, so that the first bus bar 310 is arranged on the side of the first conductive layer 120 away from the first substrate layer 110, and the second bus bar 320 is arranged on the side of the second conductive layer 140 away from the second substrate layer 150.

[0057] In some embodiments of the present application, the portion where the first groove 210 passes through the first substrate layer 110 or the second substrate layer 150 is the first region, and the portion where the first groove 210 passes through the first conductive layer 120 or the second conductive layer 140 is the second region, and the orthographic projection of the second region on the electrochromic layer 130 falls within the orthographic projection of the first region on the electrochromic layer 130.

[0058] In some embodiments, reference Figure 1 and Figure 3The first groove 210 passes through the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150. The first groove 210 forms a first region on the first substrate layer 110 and a second region on the first conductive layer 120. The cross-sectional area of ​​the first region on the first substrate layer 110 is greater than or equal to the cross-sectional area of ​​the second region on the first conductive layer 120. By setting the first region and the second region to be connected, and the area of ​​the first region is greater than or equal to the area of ​​the second region, it is beneficial to reduce the difficulty of pouring the sealing material in the first groove 210 and increase the amount of the sealing material poured in the first groove 210, thereby increasing the contact area between the sealing material and the first conductive layer 120 and improving the sealing performance of the electrochromic device 1000.

[0059] In other embodiments, the first groove 210 also penetrates the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140, and the second substrate layer 150, and forms a first region on the second substrate layer 150, and forms a second region on the second conductive layer 140, and the cross-sectional area of ​​the first region on the second substrate layer 150 is greater than or equal to the cross-sectional area of ​​the second region on the second conductive layer 140. By setting the first region and the second region to be connected, and the area of ​​the first region being greater than or equal to the area of ​​the second region, it is helpful to reduce the difficulty of pouring the sealing material in the first groove 210. On the other hand, when the contact area between the sealing material and the second conductive layer 140 is larger, the bonding strength thereof is also enhanced, which further ensures the sealing performance of the sealing material, effectively reduces the probability of external water vapor entering the first groove 210, and thus protects the first bus bar 310 from corrosion. In some embodiments of the present application, the portion where the second groove 220 passes through the first substrate layer 110 or the second substrate layer 150 is the third region, and the portion where the second groove 220 passes through the first conductive layer 120 or the second conductive layer 140 is the fourth region, and the orthographic projection of the fourth region on the electrochromic layer falls within the orthographic projection of the third region on the electrochromic layer.

[0060] In some embodiments, continue to refer to Figure 1 and Figure 3The second groove 220 passes through the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150. The second groove 220 forms a third region on the first substrate layer 110 and a fourth region on the first conductive layer 120. The cross-sectional area of ​​the third region on the first substrate layer 110 is greater than or equal to the cross-sectional area of ​​the fourth region on the first conductive layer 120. By setting the third region and the fourth region to be connected and the area of ​​the third region to be greater than or equal to the area of ​​the fourth region, it is beneficial to reduce the difficulty of pouring the sealing material in the second groove 220 and increase the pouring amount of the sealing material in the second groove 220, thereby increasing the contact area between the sealing material and the first conductive layer 120 and improving the sealing performance of the electrochromic device 1000.

[0061] In other embodiments, the second groove 220 also penetrates the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140, and the second substrate layer 150, and forms a third region on the second substrate layer 150, and forms a fourth region on the second conductive layer 140, and the cross-sectional area of ​​the third region on the second substrate layer 150 is greater than or equal to the cross-sectional area of ​​the fourth region on the second conductive layer 140. By setting the third region and the fourth region to be connected, and the area of ​​the third region being greater than or equal to the area of ​​the fourth region, it is helpful to reduce the difficulty of pouring the sealing material in the second groove 220. On the other hand, when the contact area between the sealing material and the second conductive layer 140 is larger, the bonding strength thereof is also enhanced, which further ensures the sealing performance of the sealing material, effectively reduces the probability of external water vapor entering the second groove 220, and thus protects the second bus bar 320 from corrosion.

[0062] It should be noted that the orthographic projection of the second region on the electrochromic layer 130 falls within the orthographic projection of the first region on the electrochromic layer 130, including that the cross-sectional area of ​​the first region is greater than or equal to the cross-sectional area of ​​the second region. Figure 1 As shown, the cross-sectional area of ​​the first region is greater than the cross-sectional area of ​​the second region. Figure 3 As shown, the cross-sectional area of ​​the first region is the same as the cross-sectional area of ​​the second region, and the orthographic projection of the first region coincides with the orthographic projection of the second region.

[0063] Further, the orthographic projection of the fourth region on the electrochromic layer 130 falls within the orthographic projection of the third region on the electrochromic layer 130, including that the cross-sectional area of ​​the third region is greater than or equal to the cross-sectional area of ​​the fourth region. Figure 1 As shown, the cross-sectional area of ​​the third region is greater than the cross-sectional area of ​​the fourth region. Figure 3 As shown, the cross-sectional area of ​​the third region is the same as the cross-sectional area of ​​the fourth region, and the orthographic projection of the third region coincides with the orthographic projection of the fourth region.

[0064] In the above embodiment, by making the orthographic projections of the first area and the second area coincide with each other or the orthographic projections of the third area and the fourth area coincide with each other, the cutting steps can be reduced, and the first substrate layer 110 and the first conductive layer 120 can be cut at the same time, or the second conductive layer 140 and the second substrate layer 150 can be cut at the same time, which simplifies the production process, improves production efficiency, and provides convenience for large-scale production. In addition, the first substrate layer 110 and the first conductive layer 120 are cut synchronously, or the second conductive layer 140 and the second substrate layer 150 are cut synchronously, which also ensures the accuracy and consistency of the cutting, and improves the quality and reliability of the electrochromic device 1000.

[0065] refer to Figure 4 , in the first groove 210, the orthographic projection of the second region of the first conductive layer 120 on the electrochromic layer 130 falls within the orthographic projection of the first bus bar 310 on the electrochromic layer 130. Specifically, the first groove 210 penetrates the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140 and the second substrate layer 150, and the first groove 210 forms a second region on the first conductive layer 120. In the first groove 210, the first conductive layer 120 forms a protrusion 1201 in the first groove 210, and the protrusion 1201 of the first conductive layer 120 overlaps with the first bus bar 310, so that the orthographic projection of the first bus bar 310 on the electrochromic layer 130 falls within the orthographic projection of the second region of the first conductive layer 120 on the electrochromic layer 130.

[0066] In this embodiment, a protrusion is formed on the first conductive layer 120 in the first groove 210, and the first bus bar 310 is overlapped on the protrusion of the first conductive layer 120, so that the portion of the first bus bar 310 located in the first groove 210 is electrically connected to the first conductive layer 120, so that the first conductive layer 120 can be electrically connected to an external power supply through the first bus bar 310.

[0067] In some embodiments of the present application, the electrochromic device 1000 further includes a sealing portion 500 , which is at least partially disposed in the first groove 210 and covers the first bus bar 310 ; the sealing portion is at least partially disposed in the second groove 220 and covers the second bus bar 320 .

[0068] Specifically, refer to Figure 5 , Figure 12 to Figure 14The sealing part 500 includes a first sealing material 510 and a second sealing material 520, and the first sealing material 510 and the second sealing material 520 have a sealing effect. The first sealing material 510 is arranged in the first groove 210, and the first sealing material 510 is used to block the first groove 210, so that the first sealing material 510 fills the first groove 210 and covers the first bus bar 310, so that the sealing of the first bus bar 310 at the first groove 210 can be guaranteed.

[0069] In other embodiments, a second sealing material 520 is disposed in the second groove 220 and is used to seal the second groove 220 so that the second sealing material 520 fills the second groove 220 and covers the second bus bar 320 . Therefore, the sealing of the second bus bar 320 at the second groove 220 can be ensured.

[0070] It should be noted that the first sealing material 510 and the second sealing material 520 can be the same sealing material or different sealing materials. Those skilled in the art can select the type of sealing material according to sealing requirements.

[0071] Preferably, in the embodiment of the present application, the first sealing material 510 and the second sealing material 520 in the sealing portion 500 are sealing glue, and the sealing portion 500 is formed by curing the sealing glue, wherein the viscosity of the sealing glue is not particularly limited. In some embodiments, the viscosity of the sealing glue may be no less than μ1 and no greater than μ2, wherein the value of μ1 may be, for example, 1000cps, 2000cps, 3000cps, 4000cps, 5000cps, 6000cps, 7000cps or 8000cps, and the value of μ2 may be, for example, 10000cps, 15000cps, 20000cps, 25000cps, 30000cps, 40000cps, 50000cps or 60000cps, therefore, the viscosity of the sealing glue may be 1000-60000cps, 3000-40000cps or 5000-30000cps, etc. Therefore, by setting the viscosity of the sealing glue within a certain range, a sealing glue with suitable fluidity can be obtained. When performing a sealing process, for example, when performing a dispensing operation inside the first groove 210 and the second groove 220, due to the suitable fluidity of the sealing glue, the amount of glue can be better controlled during dispensing, thereby improving the sealing performance of the sealing portion 500 formed by curing, thereby improving the overall sealing performance of the electrochromic device 1000.

[0072] Continue to refer Figure 5In the electrochromic device 1000 provided in this embodiment, the first groove 210 and the second groove 220 also penetrate the first substrate layer 110 or the second substrate layer 150. By filling the sealing material in the first substrate layer 110 or the second substrate layer 150, the bonding area between the sealing portion 500 and the first conductive layer 120 or the second conductive layer 140 can be increased, and the difficulty of external water vapor entering the first groove 210 or the second groove 220 is increased, so as to avoid the first bus bar 310 and the second bus bar 320 from being corroded, and the sealing performance of the electrochromic device 1000 is further guaranteed.

[0073] Furthermore, the sealing material is an insulating material. When the sealing material has an insulating effect, the insulation inside the first groove 210 and the second groove 220 can be improved, which is beneficial to reduce the risk of the bus bar contacting the conductive layer on the other side, thereby avoiding the short circuit problem of the electrochromic device 1000.

[0074] In some embodiments, an insulating first sealing material 510 is disposed in the first groove 210 to prevent the first bus bar 310 from being connected to the second conductive layer 140 on the other side and causing a short circuit; at the same time, the first sealing material 510, on the basis of covering the first bus bar 310, extends and connects to the first conductive layer 120 on both sides of the first bus bar 310, effectively avoiding the problem of device damage and failure caused by the first conductive layer 120 in the area where the first bus bar 310 is located being subjected to excessive current for a long time, thereby improving the stability and reliability of the electrochromic device 1000 and extending the service life of the device.

[0075] In some embodiments, an insulating second sealing material 520 is disposed in the second groove 220 to prevent the second bus bar 320 from being connected to the first conductive layer 120 on the other side and causing a short circuit; at the same time, the second sealing material 520, on the basis of covering the second bus bar 320, extends and connects to the second conductive layer 140 on both sides of the second bus bar 320, thereby effectively avoiding the problem of device damage and failure caused by the conductive layer in the area where the second bus bar 320 is located being subjected to excessive current for a long time, thereby improving the stability and reliability of the electrochromic device 1000 and extending the service life of the device.

[0076] In the above embodiment, the inner wall of the first groove 210 and the inner wall of the second groove 220 are in contact with the sealing part 500 respectively, so as to prevent the first bus bar 310 from being electrically connected to the first conductive layer 120 and the second conductive layer 140 at the same time, and to prevent the second bus bar 320 from being electrically connected to the first conductive layer 120 and the second conductive layer 140 at the same time, so as to cause a short circuit in the electrochromic device 1000, thereby improving the safety and stability of the electrochromic device 1000. In addition, by filling the sealing part 500 in the first groove 210 and the second groove 220, it is beneficial to improve the sealing performance and waterproof ability of the electrochromic device 1000, so as to protect the first bus bar 310 and the second bus bar 320 from being corroded by the external environment.

[0077] Optionally, the electrochromic layer 130 is a liquid electrochromic medium, a solid electrochromic medium or a sol-state electrochromic medium, or a combination of two or more thereof. Preferably, the electrochromic medium layer 130 is an electrochromic stacked layer, and the electrochromic stacked layer includes an ion storage layer, an electrolyte layer and an electrochromic layer stacked in sequence. By setting the electrochromic layer 130 to form the electrochromic device 1000, an external power supply is introduced between the first conductive layer 120 and the second conductive layer 140 to form an electric field on both sides of the electrochromic layer 130, thereby driving the electrochromic layer 130 to color or fade, that is, the electrochromic device 1000 shows a change in transmittance in appearance, thereby achieving a light transmittance adjustment effect on the scene where the electrochromic device 1000 is applied.

[0078] In some embodiments, the first extraction electrode 410 is disposed on a side of the first bus bar 310 close to the first conductive layer 120, and the first extraction electrode 410 is electrically connected to the first bus bar 310, so that the first bus bar 310 can be electrically connected to an external power source through the first extraction electrode 410. Figure 4 , Figure 6 and Figure 7 The portion of the first bus bar 310 located in the first groove 210 is electrically connected to the protruding portion 1201 of the first conductive layer 120 , and the first lead-out electrode 410 is electrically connected to the first conductive layer 120 through the first bus bar 310 .

[0079] In other embodiments, the second extraction electrode 420 is disposed on a side of the second bus bar 320 away from the second conductive layer 140, and the second extraction electrode 420 is electrically connected to the second bus bar 320, so that the second bus bar 320 can be electrically connected to an external power source through the second extraction electrode 420. Specifically, the portion of the second bus bar 320 located in the second groove 220 is electrically connected to the second conductive layer 140, and the second extraction electrode 420 is electrically connected to the second conductive layer 140 through the second bus bar 320.

[0080] The electrochromic device provided in the present application is configured with a first lead-out electrode 410 and a second lead-out electrode 420 respectively disposed on a first bus bar 310 and a second bus bar 320, so that the first conductive layer 120 and the second conductive layer 140 are electrically connected to an external power source through the lead-out electrodes, so that a current or voltage is introduced between the first conductive layer 120 and the second conductive layer 140 through the external power source, and an electric field is formed on both sides of the electrochromic layer 130, thereby driving the electrochromic layer 130 to color or fade, i.e., the electrochromic device 1000 exhibits a change in transmittance in appearance, thereby achieving a transmittance adjustment effect on the scene in which the electrochromic device 1000 is applied.

[0081] In some embodiments of the present application, the first groove 210 is disposed at the edge of the electrochromic device 1000, and the first extraction electrode 410 extends away from at least one end of the first bus bar to the side of the electrochromic device. Figure 6 , Figure 8 and Fig. 9 The electrochromic device 1000 includes a first substrate layer 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, and a second substrate layer 150, which are stacked in sequence. The first groove 210 penetrates the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140, and the second substrate layer 150. The first groove 210 is located at the edge of the electrochromic device 1000, and the sidewall of the first groove 210 has an opening, and the opening is located at the side of the electrochromic device 1000. Through the opening of the first groove 210, the first extraction electrode 410 can extend to the side of the electrochromic device 1000 through the first groove 210. In an embodiment of the present application, a first lead-out electrode 410 is disposed on a side of the first bus bar 310 close to the first conductive layer 120, so that one end of the first lead-out electrode 410 is connected to the first bus bar 310 and the other end extends to the side of the electrochromic device 10, so as to facilitate the connection of the electrochromic device 1000 with an external power source.

[0082] In other embodiments, the second groove 220 is disposed at the edge of the electrochromic device 1000, and at least one end of the second lead-out electrode 420 away from the second bus bar 320 extends to the side of the electrochromic device. Figure 6 , Figure 8 and Fig. 9The electrochromic device 1000 includes a first substrate layer 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, and a second substrate layer 150, which are sequentially stacked. The second groove 210 penetrates the first substrate layer 110, the first conductive layer 120, and the electrochromic layer 130. The second groove 220 is located at the edge of the electrochromic device 1000, and the side wall of the second groove 220 has an opening, and the opening is located at the side of the electrochromic device. Through the opening of the second groove 220, the second extraction electrode 420 can extend to the side of the electrochromic device 1000 through the second groove 220. In the embodiment of the present application, the second extraction electrode 420 is arranged on the side of the second bus bar 320 away from the second conductive layer 140, so that one end of the second extraction electrode 420 is connected to the second bus bar 320, and the other end extends to the side of the electrochromic device 1000, so as to facilitate the electrochromic device 1000 to be connected to an external power source.

[0083] Thus, by arranging the first bus bar 310 in the first groove 210, and at least partially arranging one end of the first lead-out electrode 410 on the first bus bar 310, the first lead-out electrode 410 forms an electrical connection with the first conductive layer 120 through the first bus bar 310; or by arranging the second bus bar 320 on the second conductive layer 140, and at least partially arranging one end of the second lead-out electrode 420 on the second bus bar 320, the second lead-out electrode 420 forms an electrical connection with the second conductive layer 140 through the second bus bar 320, which not only accelerates the rate of electrical conduction of the electrochromic device 1000, but also arranges the first groove 210 and the second groove 220 at the edge of the electrochromic device 1000, which is conducive to leading the lead-out electrode from the side of the electrochromic device 1000, simplifies the connection process of the lead-out electrode, and facilitates the connection of an external power supply to the electrochromic device 1000.

[0084] It should be noted that if Figure 8 and Fig. 9As shown, in some embodiments, a sealing frame 600 is provided on the outer circumference of the electrochromic device 1000 to seal the side of the electrochromic device 1000, and the first lead electrode 410 and the second lead electrode 420 are led out from the side of the electrochromic device 1000, so that the first lead electrode 410 or the second lead electrode 420 partially passes through the sealing frame 600 to reach the outer circumference of the electrochromic device 1000, so that the middle section between the two ends of the first lead electrode 410 and the second lead electrode 420 is covered by the sealing frame 600, resulting in that part of the first lead electrode 410 and the second lead electrode 420 are invisible. Furthermore, when the first sealing material 510 is set in the first groove 210, the first sealing material 510 contacts the sealing frame 600 through the opening of the side wall of the first groove 210, and the first lead-out electrode 410 is sealed and protected by both the first sealing material 510 and the sealing frame 600; when the second sealing material 520 is set in the second groove 220, the second sealing material 520 contacts the sealing frame 600 through the opening of the side wall of the second groove 220, and the second lead-out electrode 420 is sealed and protected by both the second sealing material 520 and the sealing frame 600.

[0085] In some embodiments, the first groove 210 is disposed inside the electrochromic device 1000, the first extraction electrode 410 extends through the first groove 210 onto the first substrate layer 110, and the first sealing material 510 at least partially covers the first bus bar 310 and the first extraction electrode 410. Figure 7 , Fig.10 and Fig.11 The electrochromic device 1000 includes a first substrate 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, and a second substrate 150 which are stacked in sequence. The first groove 210 penetrates the first substrate 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140, and the second substrate 150. The first groove 210 is located inside the electrochromic device 1000, and the first extraction electrode 410 is disposed on the first bus bar 310. One end of the first extraction electrode 410 is connected to the first bus bar 310, and the other end extends to the first substrate 110, so as to facilitate the electrochromic device 1000 to be connected to an external power source.

[0086] In other embodiments, the second groove 220 is disposed inside the electrochromic device 1000, the second extraction electrode 420 extends through the second groove 220 onto the first substrate layer 110, and the second sealing material 520 at least partially covers the second bus bar 320 and the second extraction electrode 420. Specifically, refer to 7, Fig.10 and Fig.11The electrochromic device 1000 includes a first substrate layer 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, and a second substrate layer 150 which are stacked in sequence. The second groove 220 penetrates the first substrate layer 110, the first conductive layer 120, and the electrochromic layer 130. The second groove 220 is located inside the electrochromic device 1000, and the second extraction electrode 420 is disposed on the second bus bar 320. One end of the second extraction electrode 420 is connected to the second bus bar 320, and the other end extends to the first substrate layer 110, so as to facilitate the electrochromic device 1000 to be connected to an external power source.

[0087] Optionally, the first extraction electrode 410 and the second extraction electrode 420 are both extended onto the first substrate layer 110, or the first extraction electrode 410 is extended onto the second substrate layer 150, and the second extraction electrode 420 is extended onto the first substrate layer 110. According to the structure of the electrochromic device 1000, the extraction method of the first extraction electrode 410 and the second extraction electrode 420 is adjusted. Preferably, the first extraction electrode 410 and the second extraction electrode 420 are both extended onto the first substrate layer 110, so that the appearance of the substrate layer on at least one side of the electrochromic device 1000 can be more regular, thereby improving the applicability of the electrochromic device 1000.

[0088] For further information, please refer to Figure 7 In some embodiments, one end of the first extraction electrode 410 away from the first bus bar 310 at least extends to the first substrate layer 110, and the first sealing material 510 at least partially covers the first bus bar 310 and the first extraction electrode 410. In other embodiments, one end of the second extraction electrode 420 away from the second bus bar 320 at least extends to the first substrate layer 110, and the second sealing material 520 at least partially covers the second bus bar 320 and the second extraction electrode 420.

[0089] In this embodiment, one end of the first lead-out electrode 410 is electrically connected to the first conductive layer 120 through the first bus bar 310, and the other end is electrically connected to the first external terminal of the external power supply through the first groove 210; one end of the second lead-out electrode 420 is electrically connected to the second conductive layer 140 through the second bus bar 320, and the other end is electrically connected to the second external terminal of the external power supply through the second groove 220. Among them, the first groove 210 and the second groove 220 leave operating space for the extension of the lead-out electrode, and by using the internal space of the electrochromic device 1000 to set the lead-out structure, the width of the edge of the electrochromic device 1000 is reduced, which is conducive to the narrow frame design of the product and improves the overall aesthetics.

[0090] In some embodiments, a sealing portion 500 is provided in the first groove 210 and the second groove 220. The sealing portion 500 includes a first sealing material 510 and a second sealing material 520. The sealing portion 500 covers at least the first groove 210 and the second groove 220, and reserves an opening for the lead-out electrode to pass through. The sealing portion 500 may cover the first groove 210 and the second groove 220 before the lead-out electrode is connected to the first bus bar 310 and the second bus bar 320, or may cover the first groove 210 and the second groove 220 after the lead-out electrode is connected to the first bus bar 310 and the second bus bar 320.

[0091] In some embodiments of the present application, the first extraction electrode 410 or the second extraction electrode 420 includes a conductive substrate and an adhesive layer plated on at least one side of the conductive substrate. Specifically, the adhesive layer uses a conductive colloid, including but not limited to any one of polyimide resin, phenolic resin, polyurethane, and acrylic resin. Exemplarily, the adhesive layer can be anisotropic conductive film (ACF). As a result, the adhesion between the first extraction electrode 410 and the first bus bar 310, the second extraction electrode 420, and the second bus bar 320 can be achieved more conveniently and stably.

[0092] like Figure 8 and Fig. 9 As shown, in some embodiments, the first groove 210 and the second groove 220 are arranged on the same side of the electrochromic device 1000, the first lead electrode 410 is connected to the first bus bar 310 through the first groove 210, and the second lead electrode 420 is connected to the second bus bar 320 through the second groove 220.

[0093] In this embodiment, by leading the first lead-out electrode 410 in the first groove 210 and the second lead-out electrode 420 in the second groove 220 from the same side of the electrochromic device 10, it is convenient to connect the external power supply to the electrochromic device 1000 from the same side, thereby simplifying the connection process between the lead-out electrode and the external power supply. Compared with setting the lead-out electrodes on different sides of the electrochromic device 1000, by leading the first lead-out electrode 410 and the second lead-out electrode 420 from the same side of the electrochromic device 1000, it is possible to connect the electrochromic device 1000 to the external power supply on one side, thereby simplifying the connection method of the electrochromic device 1000, while ensuring the aesthetic appearance of one side of the electrochromic device 1000, thereby improving the user experience of the electrochromic device.

[0094] Furthermore, when it is necessary to shield the portion of the lead-out electrode located outside the electrochromic device 1000, since the lead-out electrode is located on one side of the electrochromic device 1000, it is possible to choose to set the shielding area only on one side of the device, thereby simplifying the setting of the shielding area, reducing the area of ​​the shielding area, and achieving the narrow frame effect of the electrochromic device 1000.

[0095] In the above embodiment, the first extraction electrode 410 and the second extraction electrode 420 can be a flexible circuit board that is resistant to bending, or other structures with conductive properties, such as copper foil, silver wire, etc. The first external connection terminal and the second external connection terminal can be positive and negative power lines of an external power source, and the positive and negative power lines can be electrically connected to the first extraction electrode 410 and the second extraction electrode 420 respectively by welding or buckling to achieve stable electrical connection.

[0096] In some embodiments, the periphery of the first conductive layer 120 is at least partially not covered by the first substrate layer 110; in other embodiments, the periphery of the second conductive layer 140 is at least partially not covered by the second substrate layer 150. The sealing glue frame 600 at least partially covers the sides of the first substrate layer 110, the first conductive layer 120, the electrochromic layer 130, the second conductive layer 140, and the second substrate layer 150. Specifically, the two ends of the sealing glue frame 600 are correspondingly attached to the circumference of the electrochromic device 1000. By arranging the sealing glue frame 600 around the electrochromic device 1000, the stability of the bonding between the sealing glue frame 600 and the electrochromic device 1000 is improved, and the sealing performance of the sealing glue frame 600 to the edge of the electrochromic device 1000 is improved, and the integrity of the edge sealing structure of the electrochromic device 1000 is ensured, thereby improving the sealing performance and waterproof ability of the electrochromic device 1000.

[0097] In some embodiments, the sealant frame 600 at least partially covers the periphery of the first conductive layer 120 away from the electrochromic layer 130, and at least partially covers the periphery of the second base layer 150 close to the second conductive layer 140. Fig.12As shown, the electrochromic device 1000 includes a first substrate 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, a second substrate 150, and a sealing frame 600. In this embodiment, the size of the first substrate 110 in the electrochromic device 1000 is smaller than the size of the first conductive layer 120, the size of the second conductive layer 140 is smaller than the size of the second substrate 150, the sealing frame 600 is arranged around the circumference of the electrochromic device 10, and the opposite ends of the sealing frame 600 are respectively bonded to the first substrate 110 and the second substrate 150. Among them, one end of the sealing frame 600 is bonded to the surface of the first conductive layer 120 away from the electrochromic layer 130, and the other end of the sealing frame 600 is bonded to the surface of the second substrate 150 close to the second conductive layer 140. In this embodiment, by providing a sealing frame 600 around the electrochromic device 1000, the integrity of the sealing structure of the electrochromic device 1000 can be ensured, the sealing performance and waterproof ability of the electrochromic device 1000 can be improved, and the color changing performance of the electrochromic device 1000 can be further guaranteed.

[0098] In other embodiments, the sealant frame 600 at least covers the periphery of the second conductive layer 140 away from the electrochromic layer 130, and at least partially covers the periphery of the first substrate layer 110 close to the first conductive layer 120. Fig.13 As shown, the electrochromic device 1000 includes a first substrate 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, a second substrate 150 and a sealing frame 600. In this embodiment, the size of the second substrate 150 in the electrochromic device 1000 is smaller than the size of the second conductive layer 140, the size of the first conductive layer 120 is smaller than the size of the first substrate 110, the sealing frame 600 is arranged around the circumference of the electrochromic device 1000, and the opposite ends of the sealing frame 600 are respectively bonded to the first substrate 110 and the second substrate 150. Among them, one end of the sealing frame 600 is bonded to the surface of the second conductive layer 140 away from the electrochromic layer 130, and the other end of the sealing frame 600 is bonded to the surface of the first substrate 110 close to the first conductive layer 120. In this embodiment, by providing a sealing frame 600 around the electrochromic device 1000, the integrity of the sealing structure of the electrochromic device 1000 can be ensured, the sealing performance and waterproof ability of the electrochromic device 1000 can be improved, and the color changing performance of the electrochromic device 1000 can be further guaranteed.

[0099] In some other embodiments, the sealing frame 600 at least partially covers the periphery of the first conductive layer 120 away from the electrochromic layer 130, and at least partially covers the periphery of the second base layer 150 close to the second conductive layer 140; at the same time, the sealing frame 600 at least covers the periphery of the second conductive layer 140 away from the electrochromic layer 130, and at least partially covers the periphery of the first base layer 150 close to the first conductive layer 120.

[0100] like Fig.14 As shown, the electrochromic device 1000 includes a first substrate 110, a first conductive layer 120, an electrochromic layer 130, a second conductive layer 140, a second substrate 150, and a sealing frame 600. In this embodiment, the sealing frame 600 is arranged around the circumference of the electrochromic device 1000, and the opposite ends of the sealing frame 600 are respectively bonded to the first substrate 110 and the second substrate 150. Specifically, the sealing frame 600 is composed of a first sealant 610 and a second sealant 620 connected end to end, and the first sealant 610 and the second sealant 620 are each a non-enclosed structure, and the first sealant 610 and the second sealant 620 are enclosed together to form a closed structure to seal the circumference of the electrochromic device 1000.

[0101] Among them, at a portion of the edge of the electrochromic device 1000, the edge of the first conductive layer 120 protrudes from the edge of the first substrate layer 110, and the edge of the second substrate layer 150 protrudes from the edge of the second conductive layer 140, one end of the first sealant 610 is bonded to the surface of the first conductive layer 120 away from the electrochromic layer 130, and the other end of the first sealant 610 is bonded to the surface of the second substrate layer 150 close to the second conductive layer 140. At the same time, at another portion of the edge of the electrochromic device 10, the edge of the second conductive layer 140 protrudes from the edge of the second substrate layer 150, and the edge of the first substrate layer 110 protrudes from the edge of the first conductive layer 120, one end of the second sealant 620 is bonded to the surface of the second conductive layer 140 away from the electrochromic layer 130, and the other end of the second sealant 620 is bonded to the surface of the first substrate layer 110 close to the first conductive layer 120.

[0102] In the above embodiment, the sealant frame 600 can be formed by solidifying epoxy glue or acrylic glue, wherein epoxy glue has better waterproof performance, while acrylic glue has stronger bonding force.

[0103] In the electrochromic device 1000 in this embodiment, the two ends of the sealing frame 600 are correspondingly attached to the circumference of the electrochromic device 1000 and bonded to the periphery of the first conductive layer 120 or the second conductive layer 140. By increasing the contact area between the two ends of the sealing frame 600 and the conductive layer, the stability of the connection between the sealing frame 600 and the electrochromic device 1000 can be improved, and the sealing performance of the sealing frame 600 to the circumference of the electrochromic device 1000 is enhanced, thereby ensuring the integrity of the sealing structure of the electrochromic device 1000, thereby improving the sealing performance and waterproof ability of the electrochromic device 1000.

[0104] It is understandable that the sealant frame 600 in the present application may include at least one sealant, and the number and position of the sealants in this embodiment may be set accordingly according to the size of the first substrate layer 110 and the second substrate layer 150. The side of each sealant contacts the side of another sealant.

[0105] In this embodiment, the sealing frame 600 surrounds the periphery of the electrochromic device 1000, and the first sealant 610 and the second sealant 620 together form a closed structure, which can seal the periphery of the electrochromic device 1000, thereby effectively preventing water vapor from penetrating from the periphery of the electrochromic device 1000, ensuring the integrity of the sealing structure of the electrochromic device 1000, improving the sealing performance and waterproof ability of the electrochromic device 1000, and thereby extending the service life of the electrochromic device 1000.

[0106] It should be noted that in the embodiment of the present application, the water vapor transmission direction of the sealing frame 600 is from the outer surface of the frame 600 in the thickness direction to penetrate through the sealing frame 600 to reach the surface adjacent to the electrochromic layer 130 .

[0107] In a second aspect, the present application provides a terminal product, including the electrochromic device in the first aspect, wherein the terminal product includes any one of a rearview mirror, a curtain wall, a car sunroof, a car side window, a car windshield, an electronic product housing, glasses, a vehicle, and a display panel.

[0108] The terminal product provided by the present application is provided with a first bus bar 310 and a second bus bar 320 in the first groove 210 and the second groove 220, so that the first bus bar 310 and the first conductive layer 120 are electrically connected, and the second bus bar 320 and the second conductive layer 140 are electrically connected. In addition, the first groove 210 penetrates the part of the electrochromic device 1000 to form a receiving space, which is convenient for the first bus bar 310 to be connected to the external wire; the second groove 220 penetrates the part of the electrochromic device to form a receiving space, which is convenient for the second bus bar 320 to be connected to the external wire, and finally the first bus bar 310 and the second bus bar 320 can be electrically connected to the external power supply at the same time, so as to realize the color changing function of the electrochromic device and the color changing effect of the terminal product shell.

[0109] On the basis of having the beneficial effects of the above-mentioned embodiments, the terminal product provided by this embodiment can also be provided with a sealing portion 500 in the groove of the electrochromic device 1000 for sealing, which not only ensures the conduction performance of the electrochromic device 1000, but also ensures the integrity of the sealing structure at the groove. In addition, the sealing rubber frame 600 around the electrochromic device 1000 is used to form a ring-shaped enclosure around the electrochromic device 1000, and the side of the electrochromic device 1000 is completely sealed and protected to prevent water and oxygen from invading the electrochromic device, thereby improving the sealing performance and waterproof ability of the electrochromic device 1000.

[0110] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

[0111] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

1. An electrochromic device, characterized in that: include: A first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer, and a second substrate layer are sequentially stacked; the electrochromic device is provided with a first groove and a second groove, the first groove at least passes through the first conductive layer, the electrochromic layer, and the second conductive layer, and the second groove at least passes through the first conductive layer and the electrochromic layer; and, A first bus bar is provided on a side of the first conductive layer away from the first base layer, and the first bus bar is connected to the first conductive layer through the first groove; a second bus bar is provided on a side of the second conductive layer away from the second base layer, and the second bus bar is connected to the second conductive layer through the second groove.

2. The electrochromic device according to claim 1, characterized in that: The portion where the first groove passes through the first substrate layer or the second substrate layer is a first region, the portion where the first groove passes through the first conductive layer or the second conductive layer is a second region, and the orthographic projection of the second region on the electrochromic layer falls within the orthographic projection of the first region on the electrochromic layer; and / or, The portion of the second groove that passes through the first substrate layer or the second substrate layer is the third region, and the portion of the second groove that passes through the first conductive layer or the second conductive layer is the fourth region, and the orthographic projection of the fourth region on the electrochromic layer falls within the orthographic projection of the third region on the electrochromic layer.

3. The electrochromic device according to claim 2, characterized in that: In the first groove, an orthographic projection of the second region of the first conductive layer on the electrochromic layer falls within an orthographic projection of the first bus bar on the electrochromic layer.

4. The electrochromic device according to claim 3, characterized in that: The first conductive layer forms a protrusion in the first groove, and the protrusion overlaps the first bus bar.

5. The electrochromic device according to claim 1, characterized in that: It also includes a sealing portion, which is at least partially disposed in the first groove and covers the first bus bar; the sealing portion is at least partially disposed in the second groove and covers the second bus bar.

6. The electrochromic device according to claim 5, characterized in that: Also includes a first lead-out electrode and a second lead-out electrode; The first lead-out electrode is disposed on a side of the first bus bar close to the first conductive layer, and the first lead-out electrode is electrically connected to the first bus bar; The second lead-out electrode is disposed on a side of the second bus bar away from the second conductive layer, and the second lead-out electrode is electrically connected to the second bus bar.

7. The electrochromic device according to claim 6, characterized in that: The first groove is arranged at the edge of the electrochromic device, and at least one end of the first lead-out electrode away from the first bus bar extends to the side of the electrochromic device; and / or, The second groove is arranged at an edge of the electrochromic device, and at least one end of the second lead-out electrode away from the second bus bar extends to a side edge of the electrochromic device.

8. The electrochromic device according to claim 6, characterized in that: The first groove is arranged inside the electrochromic device, the first extraction electrode extends through the first groove to the first substrate layer or the second substrate layer, and the sealing portion at least partially covers the first bus bar and the first extraction electrode; and / or, The second groove is disposed inside the electrochromic device, the second lead-out electrode extends through the second groove to the first substrate layer, and the sealing portion at least partially covers the second bus bar and the second lead-out electrode.

9. The electrochromic device according to claim 6, characterized in that: The first groove and the second groove are arranged on the same side of the electrochromic device, the first lead-out electrode is connected to the first bus bar through the first groove, and the second lead-out electrode is connected to the second bus bar through the second groove.

10. The electrochromic device according to claim 1, characterized in that: The periphery of the first conductive layer is at least partially not covered by the first substrate layer; and / or, A periphery of the second conductive layer is at least partially not covered by the second base layer.

11. The electrochromic device according to claim 10, characterized in that: The periphery of the electrochromic device includes a sealing frame, wherein the sealing frame at least partially covers the periphery of the first conductive layer away from the electrochromic layer, and at least partially covers the periphery of the second substrate layer close to the second conductive layer; and / or, The sealant frame at least partially covers a periphery of the second conductive layer away from the electrochromic layer, and at least partially covers a periphery of the first substrate layer close to the first conductive layer.

12. A terminal product comprising the electrochromic device according to any one of claims 1 to 11, wherein: The terminal product includes any one of a rearview mirror, a curtain wall, a car sunroof, a car side window, a car windshield, a housing of an electronic product, glasses, a vehicle and a display panel.

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