Conductive base structure, electrochromic device, and electrochromic apparatus

Abstract

To provide a conductive base structure, an electrochromic device, and an electrochromic apparatus.SOLUTION: There is provided an electrochromic device. A conductive base structure comprises a base body (13) that comprises a first conductive base (1) and a second conductive base (3) that are stacked and are respectively used for connecting to an external power supply. At least one circumferential side wall of the first conductive base (1) is provided with a first groove (8). At least one circumferential side wall of the second conductive base (3) is provided with a second groove (9). Both the first groove (8) and the second groove (9) are located on the same side of the base body (13). The first conductive base (1) is provided with the first groove (8), and at the same time, the second conductive base (3) is provided with the second groove (9), so that connection terminals of the external power supply respectively connected to the first conductive base (1) and the second conductive base (3) are staggered, so as to improve the safety and stability of the connection of the first conductive base (1) and the second conductive base (3) to the external power supply, thereby avoiding a short circuit.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application claims priority to Chinese patent applications bearing application number 202121786998.4 and entitled "Electrochromic Device", filed with the China Patent Office on August 2, 2021, bearing application number 202110880224.6 and entitled "Electrochromic Device and Electrochromic Apparatus", bearing application number 202110882449.5 and entitled "Conductive Structure and Electrochromic Device", and bearing application number 202110881001.1 and entitled "Conductive Base Structure and Electrochromic Device", the entire contents of which are incorporated herein by reference. The present invention relates to the field of electrochromics, and in particular to conductive base structures, electrochromic devices and electrochromic apparatus. [Background technology]

[0002] As electronic components rapidly develop toward smaller size, finer design, and higher integration, the design of the base conductive lines also continues to be optimized.

[0003] In prior art, the conductive lines used in the conductive substrates of miniaturized electronic components are all single conductive lines, and in order to prevent contact between the lines on the conductive substrate, the installation of the conductive lines on the wiring board is complicated. As a result, the process of manufacturing the conductive wiring board is complicated, the cost is high, and there is a risk of mutual contact and short circuit.

[0004] In conventional technology, in order to avoid short circuits between the bus bars above and below an electrochromic device, typically one bus bar is provided on only one side of the electrochromic device. The purpose of the structure with one bus bar on one side is to prevent the two bus bars from coming into contact and shorting out. However, for electrochromic devices with a large area, the structure with one bus bar on one side significantly reduces the surface resistance of the electrochromic device (surface resistance is the resistive impedance per unit square area, which is generally the area of ​​a square with a side length of 1 cm), reducing its effectiveness. As a result, the color change rate of the electrochromic device slows down, and phenomena such as a slowdown in color change occur, which has a significant impact on the reliability of the electrochromic device. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of this, the present invention aims to provide a conductive base structure, an electrochromic device and an electrochromic apparatus to overcome the deficiencies in the prior art. [Means for solving the problem]

[0006] One aspect of the present invention provides a conductive base structure comprising a base body having a first conductive base and a second conductive base that are stacked and each used for connecting to an external power source, at least one first groove being provided in at least one circumferential side wall of the first conductive base, and at least one second groove being provided in at least one circumferential side wall of the second conductive base, and the first groove and the second groove are both located on the same side of the base body.

[0007] Furthermore, there are multiple first grooves and multiple second grooves, and the multiple first grooves are spaced apart from each other along the circumferential direction of the first conductive base, and the multiple second grooves are spaced apart from each other along the circumferential direction of the second conductive base.

[0008] Furthermore, there is a gap between the orthogonal projection of the first groove on the plane where the second conductive base is located and the second groove, and there is a gap between the orthogonal projection of the second groove on the plane where the first conductive base is located and the first groove.

[0009] Furthermore, the orthogonal projection of the first groove on the plane where the second conductive base is located partially overlaps with the second groove, and the orthogonal projection of the second groove on the plane where the first conductive base is located partially overlaps with the first groove.

[0010] Another aspect of the present invention provides an electrochromic device comprising an electrochromic layer and the conductive base structure described above, wherein the electrochromic layer is disposed between the first conductive base and the second conductive base.

[0011] Furthermore, a sealant layer is provided around the periphery of the electrochromic layer to form a seal around the periphery of the electrochromic layer and to fix the first conductive base and the second conductive base.

[0012] Furthermore, the first conductive base includes a first conductive layer having a plurality of first conductive segments, each of which has an orthogonal projection in a plane where the second conductive base is located located within one of the second grooves, and the second conductive base includes a second conductive layer having a plurality of second conductive segments, each of which has an orthogonal projection in a plane where the first conductive layer is located located within one of the first grooves, and there is a gap between the orthogonal projection of the first conductive segment in the plane where the second conductive layer is located and the second conductive segment, and the first conductive segment and the second conductive segment are each used for connection to an external power source.

[0013] Furthermore, a sealant layer is provided around the first groove, the second groove, and the electrochromic layer, and there is a gap between the first conductive segment and the second conductive segment and the sealant layer.

[0014] Furthermore, the orthogonal projections of each of the first grooves and each of the second grooves on the plane where the electrochromic layer is located are spaced apart, and a gap with a sealant layer provided therebetween is formed between the first grooves and the second grooves.

[0015] Furthermore, the orthogonal projections of each of the first grooves and each of the second grooves on the plane where the electrochromic layer is located partially overlap, and an overlapping portion is formed between the first grooves and the second grooves, with a sealant layer provided on the circumferential side.

[0016] Furthermore, the overlapping portions of the first and second conductive bases when projected orthogonally on the plane where the electrochromic layer is located overlie the electrochromic layer.

[0017] The electrochromic device further includes a first conductive base, an electrochromic layer, and a second conductive base, which are sequentially stacked. The first conductive base includes a first base layer and a first conductive layer provided on the first base layer closer to the electrochromic layer. The second conductive base includes a second base layer and a second conductive layer provided on the second base layer closer to the electrochromic layer. At least one circumferential side of the electrochromic device is provided with a first bus bar electrically connected to the first conductive layer by at least one first connection portion, and a second bus bar electrically connected to the second conductive layer by at least one second connection portion. There is a gap between the first bus bar when orthogonally projected on a plane where the first conductive base is located and the first conductive base. There is also a gap between the second bus bar when orthogonally projected on a plane where the second conductive base is located and the second conductive base.

[0018] Furthermore, there is a gap between the orthogonal projection of the first bus bar on the plane in which the second conductive base is located and the orthogonal projection of the second bus bar on the plane in which the second conductive base is located.

[0019] Furthermore, the first bus bar is electrically connected to the first conductive segment by the first connection portion, and the second bus bar is electrically connected to the second conductive segment by the second connection portion.

[0020] Furthermore, the first bus bar and the second bus bar are both covered with an insulating layer in the circumferential direction, and both ends of the first bus bar and both ends of the second bus bar are conductive portions.

[0021] Furthermore, the first connecting portion and the second connecting portion are both circumferentially covered with an insulating layer.

[0022] Another aspect of the present invention provides an electrochromic apparatus including a first substrate layer, a first package layer, the electrochromic device, a second package layer, and a second substrate layer, which are sequentially stacked, the first package layer and the second package layer covering the electrochromic device. In this aspect of the present invention, the electrochromic device is enclosed in two package layers, which makes it possible to more effectively package the electrochromic device, and the placement of the package layer and the substrate layer also provides physical support for the bus bars in the electrochromic device, preventing the bus bars from breaking, bending, or falling off from their connections. [Effects of the Invention]

[0023]

[0013] The embodiments of the present invention have the following advantages: A first groove is provided on any one circumferential side wall of the first conductive base, and a second groove is provided on any one circumferential side wall of the second conductive base, forming a "convex-concave" structure in the circumferential direction of the base body, allowing the connection terminals of the external power source to be connected to the first conductive base through the second groove, and simultaneously the connection terminals of the external power source to be connected to the second conductive base through the first groove, so that the connection terminals of the external power source respectively input to the first conductive base and the second conductive base are misaligned, improving the safety and stability of the connection between the first conductive base and the second conductive base and the external power source, reducing the cost of conductive materials, and avoiding short circuits. The electrochromic device and electrochromic apparatus including the electrochromic device according to the present invention can effectively reduce the surface resistance of the electrochromic device and improve the color change speed of the electrochromic device, so that the electrochromic layer undergoes a stable and uniform color change under the action of an applied electric field.

[0024] In order to make the above objects, features and advantages of the present invention more apparent and understandable, the following detailed description will be given of a particularly preferred embodiment with reference to the accompanying drawings.

[0025] In order to more clearly explain the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the embodiments. The following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope. It should be understood that a person skilled in the art can further obtain other related drawings from these drawings without performing any creative work. [Brief explanation of the drawings]

[0026] [Figure 1] 1 shows a structural schematic diagram 1 of a conductive base structure according to some embodiments of the present invention at one viewing angle. [Figure 2] 2 shows a structural schematic diagram 2 of a conductive base structure according to some embodiments of the present invention at one viewing angle. [Figure 3] 1 shows a structural schematic diagram 1 of one viewing angle of an electrochromic device according to some embodiments of the present invention. [Figure 4] 4 shows a cross-sectional view of the AA portion in FIG. 3. [Figure 5] 1 shows a structural schematic diagram 1 of one viewing angle of a first conductive layer in an electrochromic device according to some embodiments of the present invention. [Figure 6] 1 shows a structural schematic diagram 1 of one viewing angle of a second conductive layer in an electrochromic device according to some embodiments of the present invention. [Figure 7] 1 shows a structural schematic diagram of one viewing angle of a first conductive base in an electrochromic device according to some embodiments of the present invention. [Figure 8] 1 shows a structural schematic diagram of one viewing angle of a second conductive base in an electrochromic device according to some embodiments of the present invention. [Figure 9] 1 shows a structural schematic diagram 1 of one viewing angle of a first bus bar in an electrochromic device according to some embodiments of the present invention; FIG. [Figure 10] 1 shows a structural schematic diagram of one viewing angle of a second bus bar in an electrochromic device according to some embodiments of the present invention; FIG. [Figure 11] 2 shows a structural schematic diagram 2 of one viewing angle of an electrochromic device according to some embodiments of the present invention. [Figure 12] 2 shows a structural schematic diagram 2 of one viewing angle of a first conductive layer in an electrochromic device according to some embodiments of the present invention. [Figure 13] 2 shows a structural schematic diagram 2 of one viewing angle of the second conductive layer in an electrochromic device according to some embodiments of the present invention. [Figure 14] 3 shows a structural schematic diagram 3 of one viewing angle of an electrochromic device according to some embodiments of the present invention. [Figure 15]3 shows a structural schematic diagram 3 of one viewing angle of a first conductive layer in an electrochromic device according to some embodiments of the present invention. [Figure 16] 4 shows a structural schematic diagram 4 of one viewing angle of the second conductive layer in an electrochromic device according to some embodiments of the present invention. [Figure 17] 4 shows a structural schematic diagram 4 of one viewing angle of an electrochromic device according to some embodiments of the present invention. [Figure 18] 18 shows an enlarged view of part B in FIG. 17. [Figure 19] 5 shows a structural schematic diagram 5 of one viewing angle of an electrochromic device according to some embodiments of the present invention. [Figure 20] 20 shows a cross-sectional view of the CC portion in FIG. 19. [Figure 21] 2 shows a structural schematic diagram 2 of one viewing angle of a first conductive base in an electrochromic device according to some embodiments of the present invention. [Figure 22] 22 shows an enlarged view of part D in FIG. 21. [Figure 23] 2 shows a structural schematic diagram 2 of one viewing angle of the second conductive base in an electrochromic device according to some embodiments of the present invention. [Figure 24] 24 shows an enlarged view of part E in FIG. 23. [Figure 25] 7 shows a structural schematic diagram 7 of one viewing angle of an electrochromic device according to some embodiments of the present invention. [Figure 26] 26 shows an enlarged view of part F in FIG. 25. [Figure 27] 6 shows a structural schematic diagram 6 of one viewing angle of an electrochromic device according to some embodiments of the present invention. [Figure 28] 28 shows a cross-sectional view of the GG portion in FIG. 27. [Figure 29] 1 shows a structural schematic diagram 1 of another structure of an electrochromic device according to some embodiments of the present invention at one viewing angle. [Figure 30]2 shows a structural schematic diagram 2 of another structure of an electrochromic device according to some embodiments of the present invention at one viewing angle. [Figure 31] 3 shows a structural schematic diagram 3 of another structure of an electrochromic device according to some embodiments of the present invention at one viewing angle. [Figure 32] 4 shows a structural schematic diagram 4 of another structure of an electrochromic device according to some embodiments of the present invention at one viewing angle. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, the embodiments of the present invention will be described in detail. Examples of the described embodiments are shown in the drawings, in which the same or similar reference numerals throughout indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are merely illustrative and are intended to help interpret the present invention, but should not be understood as limiting the present invention.

[0028] It should be noted that when an element is said to be "fixed to" another element, it may be directly connected to the other element, or there may be intervening elements present. When an element is said to be "connected" to another element, it may be directly connected to the other element, or there may also be intervening elements present. Conversely, when an element is said to be "directly" "on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar terms used herein are for descriptive purposes only.

[0029] In the present invention, unless otherwise clearly specified or limited, the terms "attach," "connect," "fixed," etc. should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or integration, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, internal communication between two elements, or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0030] Furthermore, the terms "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying the relative importance or the number of the indicated technical features. Thus, a feature qualified with "first," "second," etc. may explicitly or implicitly include one or more of the feature. In the description of this invention, unless otherwise clearly and specifically limited, "plurality" means two or more than two.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of this application. Terms used in the template description herein are for the purpose of describing specific examples only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more associated listed items.

[0032] As shown in Figures 1, 2, 7 and 8, an embodiment of the present invention provides a conductive base structure, of which the conductive base is mainly applied to miniaturized, finely-tuned and integrated electronic components. The conductive base structure includes a base body 13, which includes a first conductive base 1 and a second conductive base 3 that are stacked one on top of the other. The first conductive base 1 and the second conductive base 3 are parallel to each other and are respectively used for connecting to an external power source.

[0033] Since there is a gap between the first conductive base 1 and the second conductive base 3, when external power sources are simultaneously applied to the first conductive base 1 and the second conductive base 3, an electric field is formed between the first conductive base 1 and the second conductive base 3, which can be used to ionize electrolytes in solution, and can also cause unidirectional movement of charges in conductive materials under the action of the applied electric field. The external power source has a positive electrode and a negative electrode, of which the positive electrode can be connected to the first conductive base 1 through at least one connecting terminal and the negative electrode can be connected to the second conductive base 3 through at least one connecting terminal, or the positive electrode can be connected to the second conductive base 3 through at least one connecting terminal and the negative electrode can be connected to the first conductive base 1 through at least one connecting terminal.

[0034] Furthermore, at least one first groove 8 is provided in at least one side wall in the circumferential direction of the first conductive base 1, and the number of the first grooves 8 may be specifically limited according to actual circumstances. Similarly, at least one second groove 9 is provided in at least one side wall in the circumferential direction of the second conductive base 3, and the number of the second grooves 9 may be specifically limited according to actual circumstances. The first groove 8 and the second groove 9 are both located on the same side of the base body 13, thereby causing the first groove 8 and the second groove 9 to be misaligned on the same side of the base body 13, and the connection terminals of the external power supplies connected to the first conductive base 1 and the second conductive base 3, respectively, to be misaligned and spaced apart, thereby improving safety when the external power supplies are simultaneously applied to the first conductive base 1 and the second conductive base 3.

[0035] In addition, the first groove 8 may be provided on any one side in the circumferential direction of the first conductive base 1, or the first groove 8 may be provided on any both sides or multiple sides in the circumferential direction of the first conductive base 1, where ``multiple'' may be understood as any numerical value greater than or equal to 2, or may be specifically limited according to actual circumstances, and the number of first grooves 8 provided on each side in the circumferential direction of the first conductive base 1 may be one or multiple, thereby increasing the versatility of the base body 13 and improving the utilization rate of the base body 13.

[0036] Among them, the second groove 9 may be provided on any one side of the edge of the second conductive base 3, or the second groove 9 may be provided on any two or more sides of the edge of the second conductive base 3, where "multiple" may be understood as any number greater than or equal to two, or may be specifically limited according to actual circumstances, and the number of second grooves 9 provided on each circumferential side of the second conductive base 3 may be one or more, thereby providing the required number of first grooves and second grooves according to different electronic components, and improving the use efficiency of the base body 13.

[0037] Furthermore, if the number of first grooves 8 provided in the circumferential direction of the first conductive base 1 is one and the number of second grooves 9 provided in the circumferential direction of the second conductive base 3 is one, there will be a gap between the orthogonal projection of the first groove 8 on the plane in which the second conductive base 3 is located and the second groove 9, which will cause the power connection terminals connected to the first conductive base 1 and the second conductive base 3, respectively, to be misaligned and spaced apart, thereby increasing safety when external power is applied to the first conductive base 1 and the second conductive base 3 simultaneously.

[0038] The orthogonal projection of the first groove 8 on the plane where the second conductive base 3 is located and the second groove 9 may partially overlap, and the connection terminals of the external power supply are electrically connected by the parts where the orthogonal projection of the first groove 8 on the plane where the second conductive base 3 is located and the second groove 9 do not overlap, thereby forming a positional misalignment, which improves the safety when external power is applied to the first conductive base 1 and the second conductive base 3 simultaneously.

[0039] 29 to 32 , in another embodiment of the present invention, there are multiple first grooves 8 and multiple second grooves 9, and the multiple first grooves 8 are spaced apart from one another along the circumferential direction of the first conductive base 1, forming a “convex-concave” structure in the circumferential direction of the first conductive base 1. The multiple second grooves 9 are spaced apart from one another along the circumferential direction of the second conductive base 3, forming a “concave-convex” structure in the circumferential direction of the second conductive base 3. As a result, the connection terminals of the external power supply are connected to the second conductive base through the first grooves, and simultaneously, the connection terminals of the external power supply are connected to the first conductive base through the second grooves, and the power connection terminals connected to the first conductive base 1 and the second conductive base 3 are misaligned and spaced apart, thereby improving safety when external power is simultaneously applied to the first conductive base 1 and the second conductive base 3.

[0040] As shown in Figures 1, 29 and 30, in another embodiment of the present invention, in order to improve safety and stability when connecting the first conductive base 1 and the second conductive base 3 to an external power source, there is a gap between the orthogonal projection of the first groove 8 on the plane where the second conductive base 3 is located and the second groove 9, so that the connection terminal of the external power source can be electrically connected to the second conductive base 3 through the first groove 8, and the connection terminal of the external power source input to the second conductive base 3 is spaced apart from the first conductive base 1, thereby avoiding the occurrence of a short circuit due to contact with the first conductive base 1.

[0041] At the same time, there is a gap between the first groove 8 and the orthogonal projection of the second groove 9 on the plane on which the first conductive base 1 is located. At this time, the first groove 8 and the second groove 9 form a misaligned structure in the circumferential direction of the base body 13, which allows the connection terminal of the external power supply to be electrically connected to the first conductive base 1 through the second groove 9, and the connection terminal of the external power supply input to the first conductive base 1 is spaced apart from the second conductive base 3, thereby preventing a short circuit caused by contact with the second conductive base 3. At the same time, a short circuit caused by contact between the power connection terminal input to the first conductive base 1 and the power connection terminal input to the second conductive base 3 is prevented, thereby improving the safety and stability between the external power supplies input to the first conductive base 1 and the second conductive base 3.

[0042] 2, 31 and 32, in still another embodiment of the present invention, in order to improve safety and stability when the first conductive base 1 and the second conductive base 3 are connected to an external power source, the orthogonal projection of the first groove 8 on the plane in which the second conductive base 3 is located partially overlaps with the second groove 9. The orthogonal projection of the second groove 9 on the plane in which the first conductive base 1 is located partially overlaps with the first groove 8. The first groove 8 and the second groove 9 form a misaligned structure in the circumferential direction of the base body 13.

[0043] Furthermore, to enhance safety and stability when connecting the first conductive base 1 and the second conductive base 3 to an external power source, the connection terminal of the external power source can be connected to the second conductive base 3 through a portion where the orthogonal projection of the first groove 8 on the plane where the second conductive base 3 is located does not overlap with the second groove 9. The connection terminal of the external power source can be connected to the first conductive base 1 through a portion where the orthogonal projection of the second groove 9 on the plane where the first conductive base 1 is located does not overlap with the first groove 8. As a result, the connection terminals of the external power source connected to the first conductive base 1 and the second conductive base 3 form an alternating structure, which prevents the connection terminals of the external power source connected to the first conductive base 1 and the second conductive base 3 from contacting each other, thereby enhancing safety and stability when connecting the first conductive base 1 and the second conductive base 3 to the external power source.

[0044] In addition, the second groove 9 and the first groove 8 may be located on different sides in the circumferential direction of the base body 13, thereby causing the power supply connection terminals connected to the first conductive base 1 and the second conductive base 3, respectively, to be misaligned and spaced apart, thereby increasing safety when external power is applied to the first conductive base 1 and the second conductive base 3 simultaneously.

[0045] As shown in Figures 3 and 4, the present invention further provides an electrochromic device primarily applicable to dimming of automobile auto-dimming rearview mirrors, displays, and smart glass. The electrochromic device has adjustable light absorption and transmission under the action of an electric field, and selectively absorbs or reflects external thermal radiation and internal thermal diffusion. The electrochromic device includes an electrochromic layer 2 and a conductive base structure according to any of the above embodiments, where the electrochromic layer 2 is laminated between a first conductive base 1 and a second conductive base 3. By simultaneously applying external power to the first conductive base 1 and the second conductive base 3, an electric field is formed between the first conductive base 1 and the second conductive base 3, and the electrochromic layer 2 connected between the first conductive base 1 and the second conductive base 3 undergoes a stable and reversible color change under the action of the electric field.

[0046] The discoloration or color change described in the present invention may be expressed as a change from one color to another, such as from red to black, or from one transmittance to another, such as from 30% transmittance to 80% transmittance.

[0047] In order to prevent the electrochromic layer 2 from contacting oxygen in the air and at the same time from contacting water, a sealant layer 12 is provided around the periphery of the electrochromic layer 2. The sealant layer 12 is used to form a seal around the periphery of the electrochromic layer 2, thereby forming a protective layer around the periphery of the electrochromic layer 2, preventing water and oxygen from penetrating the electrochromic layer 2, improving the durability of the electrochromic layer 2 during use, and extending the service life of the electrochromic layer 2.

[0048] At the same time, the sealant layer 12 provided around the periphery of the electrochromic layer 2 can fix the first conductive base 1 and the second conductive base 3, increasing the strength of the electrochromic layer 2 between the first conductive base 1 and the second conductive base 3, and improving the stability of the electrochromic layer.

[0049] As shown in Figures 5, 10, 12, 15, and 19, in one embodiment of the present invention, in order to further enhance the safety and stability of the connection between the first conductive base 1 and the second conductive base 3 and the external power source, the first conductive base 1 includes a first conductive layer 101, which is provided with a plurality of first conductive segments 10. The first conductive segments 10 are used to connect to the connection terminals of the external power source. The number of first conductive segments 10 may be two or more, and the orthogonal projection of each first conductive segment 10 on the plane where the second conductive base 3 is located is located in a second groove 9, and the connection terminals of the external power source can be connected to the first conductive segments 10 through the second groove 9. The first groove 8 isolates the connection terminals of the external power source connected to the first conductive layer 101, preventing short-circuiting of the connection terminals connected to the plurality of first conductive segments 10 and improving safety.

[0050] Furthermore, the multiple first conductive segments 10 are arranged at intervals from each other, and the multiple first conductive segments 10 may be arranged on any one side of the edge of the first conductive layer 101 at the same time, or the multiple first conductive segments 10 may be arranged on any multiple sides of the edge of the first conductive layer 101 at the same time, where ``multiple sides'' means any number greater than or equal to the number 2 and may be specifically limited according to actual circumstances, thereby increasing the diversity of the arrangement of the first conductive segments 10 on the first conductive layer 101 and allowing them to be used for different electronic components, thereby improving the utilization rate of the first conductive layer 101.

[0051] In addition, there is a gap between the electrochromic layer 2 and the orthogonal projection of the first conductive segment 10 on the plane where the electrochromic layer 2 is located, which prevents the electrochromic layer 2 from coming into contact with the electrochromic layer 2 when the connection terminal of an external power source is connected to the first conductive segment 10, thereby increasing safety when the connection terminal of an external power source is connected to the first conductive segment 10.

[0052] 6, 11, 13, 16 and 23, in one embodiment of the present invention, the second conductive base 3 includes a second conductive layer 301, which is provided with a plurality of second conductive segments 11 for connection with connection terminals of an external power source. The number of second conductive segments 11 may be two or more, and the orthogonal projection of each second conductive segment 11 on the plane where the first conductive layer 101 is located is located in a first groove 8. The connection terminals of the external power source can be connected to the second conductive layer 301 through the first groove 8. The second groove 9 isolates the connection terminals of the external power source connected to the second conductive layer 301, preventing short-circuiting of the connection terminals connected to the plurality of second conductive segments 11, thereby improving safety.

[0053] In addition, the multiple second conductive segments 11 are arranged at intervals from each other, and the multiple second conductive segments 11 may be arranged on any one side of the edge of the second conductive layer 301 at the same time, or the multiple second conductive segments 11 may be arranged on any multiple sides of the edge of the second conductive layer 301 at the same time, which increases the diversity of the arrangement of the first conductive segments 10 on the first conductive layer 101 and allows them to be used for different electronic components, thereby increasing the utilization rate of the first conductive layer 101.

[0054] There is a gap between the electrochromic layer 2 and the orthogonal projection of the second conductive segment 11 on the plane where the electrochromic layer 2 is located, which prevents the electrochromic layer 2 from coming into contact with the second conductive segment 11 and causing a short circuit when the connection terminal of an external power source is connected to the second conductive segment 11, thereby increasing safety when the connection terminal of an external power source is connected to the second conductive segment 11.

[0055] 17 and 27, in order to further enhance safety and stability in the process of connecting the first conductive segment 10 and the second conductive segment 11 to the connection terminals of the external power supply, a gap is provided between the orthogonal projection of the first conductive segment 10 on the plane where the second conductive layer 301 is located and the second conductive segment 11. In this way, an alternating connection structure is formed in the process of connecting the connection terminals of the external power supply to the first conductive segment 10 and the second conductive segment 11, respectively, and contact between the connection terminals of the external power supply connected to the first conductive segment 10 and the connection terminals of the external power supply connected to the second conductive segment 11 is avoided, thereby enhancing safety and stability in the process of connecting the first conductive segment 10 and the second conductive segment 11 to the connection terminals of the external power supply.

[0056] This prevents a short circuit from occurring when the connection terminal of the external power supply connected to the first conductive segment 10 comes into contact with the second conductive layer 301, and prevents a short circuit from occurring when the connection terminal of the external power supply connected to the second conductive segment 11 comes into contact with the first conductive layer 101, thereby improving safety and stability when connecting the first conductive segment 10 and the second conductive segment 11 to the connection terminal of the external power supply. At the same time, it also improves safety and stability when connecting the first conductive layer 101 and the second conductive layer 301 to the external power supply.

[0057] In particular, when the first conductive segment 10 and the second conductive segment 11 are projected orthogonally on the plane where the electrochromic layer 2 is located, there is a gap between the electrochromic layer 2 and the first conductive segment 10 and the second conductive segment 11. This prevents the first conductive segment 10 and the second conductive segment 11 from coming into contact with the electrochromic layer 2 during connection to the connection terminals of an external power supply, thereby further improving the safety and stability when connecting the first conductive segment 10 and the second conductive segment 11 to the connection terminals of an external power supply.

[0058] It can be seen that the plurality of first conductive segments 10 and the plurality of second conductive segments 11 are alternately spaced apart from one another along the circumferential edge of the electrochromic layer 2, respectively.

[0059] The material of the first base layer 102 and the second base layer 302 is not particularly limited and may be a transparent rigid material such as glass, or a transparent flexible material such as PET (polyethylene glycol terephthalate). The material of the first conductive layer 101 and the second conductive layer 301 is also not particularly limited and may be a transparent conductive material such as ITO (indium tin oxide) or silver nanowires.

[0060] 20 to 25, in yet another embodiment of the present invention, a sealant layer 12 is provided around the first groove 8, the second groove 9, and the electrochromic layer 2 in order to further enhance the protection of the electrochromic layer 2. The sealant layer 12 provided around the first groove 8 secures the second conductive base 3. At the same time, the sealant layer 12 isolates the electrochromic layer 2 facing the first groove 8 from external air and water, thereby enhancing the stability of the electrochromic layer 2.

[0061] In order to improve the protective quality of the sealant layer 12, there is a gap between the sealant layer 12 and the first conductive segment 10, which avoids the sealing quality of the sealant layer 12 being affected during the process of connecting the first conductive segment 10 to an external power source, and improves the stability of the protection of the sealant layer 12 against the electrochromic layer 2.

[0062] The sealant layer 12 arranged around the second groove 9 fixes the first conductive base 1 and at the same time separates the electrochromic layer 2 facing the second groove 9 from the outside air and water, thereby increasing the stability of the electrochromic layer 2.

[0063] In order to improve the protective quality of the sealant layer 12, there is a gap between the sealant layer 12 and the second conductive segment 11, which avoids the sealing quality of the sealant layer 12 being affected during the process of connecting the second conductive segment 11 to an external power source, and improves the stability of the protection of the sealant layer 12 against the electrochromic layer 2.

[0064] In addition, by providing a sealant layer 12 around the circumference of the electrochromic layer 2 so as to form a protective layer around the circumference of the electrochromic layer 2, the electrochromic layer 2 is sealed around the circumference, preventing contact between the electrochromic layer 2 and external air and water, and improving the durability of the electrochromic layer 2 during use.

[0065] As shown in Figures 3, 29 and 30, in some embodiments of the present invention, the orthogonal projections of each first groove 8 and each second groove 9 on the plane where the electrochromic layer 2 is located are spaced apart, and a gap is formed between the first groove 8 and the second groove 9.

[0066] At this time, the first grooves 8 and the second grooves 9 form a misaligned structure in the circumferential direction of the electrochromic layer 2 .

[0067] Furthermore, as shown in Figures 25 and 26, a sealant layer 12 is provided in the gap formed between the first groove 8 and the second groove 9, which separates the adjacent first groove 8 and second groove 9, and at the same time seals the gap formed between the first groove 8 and the second groove 9 with the sealant layer 12. This also isolates the electrochromic layer 2 facing the gap from external air and water, forming a protective layer in the circumferential direction of the electrochromic layer 2 and improving the stability of the electrochromic layer 2.

[0068] 31 and 32, in another embodiment of the present invention, in order to enhance the protective effect of the sealant layer 12 on the electrochromic layer 2, the orthogonal projection of the first groove 8 on the plane where the second groove 9 is located partially overlaps with the second groove 9, thereby forming a misaligned structure between the first groove 8 and the second groove 9. In this way, the external power supplies connected to the first conductive base 1 and the second conductive base 3 form an alternating structure, which prevents mutual contact between the external power supplies connected to the first conductive base 1 and the second conductive base 3, thereby improving safety and stability when the first conductive base 1 and the second conductive base 3 are simultaneously connected to external power supplies.

[0069] An overlapping portion is formed between the first groove 8 and the second groove 9, and at the same time, a sealant layer 12 is provided around the overlapping portion. This sealant layer 12 forms a seal around the electrochromic layer 2, isolates the electrochromic layer 2 from external air and water, forms a protective layer around the electrochromic layer 2, improves the sealing quality of the sealant layer 12 to the electrochromic layer 2, and increases the stability of the electrochromic layer 2.

[0070] In order to enhance safety and stability when connecting the first conductive layer 101 and the second conductive layer 301 to an external power source, the connection terminal of the external power source can be connected to the second conductive layer 301 through a portion where the orthogonal projection of the first groove 8 on the plane where the second conductive base 3 is located does not overlap with the second groove 9, and the connection terminal of the external power source can be connected to the first conductive layer 101 through a portion where the orthogonal projection of the second groove 9 on the plane where the first conductive base 1 is located does not overlap with the first groove 8. The connection terminals of the external power source connected to the first conductive layer 101 and the second conductive layer 301, respectively, form an alternating structure, which prevents the connection terminals of the external power source connected to the first conductive layer 101 and the second conductive layer 301 from contacting each other, thereby enhancing safety and stability when connecting the first conductive layer 101 and the second conductive layer 301 to the external power source.

[0071] As shown in Figures 20 and 28, in yet another embodiment of the present invention, in order to prevent the sealant layer 12 provided in the circumferential direction of the electrochromic layer 2 from extending outside the first conductive base 1 and the second conductive base 3, the overlapping portions of the orthogonal projections of the first conductive base 1 and the second conductive base 3 on the plane where the electrochromic layer 2 is located are covered by the electrochromic layer 2, thereby maximizing the effective area of ​​the electrochromic layer 2 located between the first conductive base 1 and the second conductive base 3 and improving the utilization rate of the electrochromic layer 2.

[0072] As shown in Figures 17 and 18, in this embodiment, the overlapping portion of the orthogonal projection of the first conductive layer 101 and the second conductive layer 301 on the plane where the electrochromic layer 2 is located covers the electrochromic layer 2, thereby maximizing the effective area of ​​the electrochromic layer 2 located between the first conductive layer 101 and the second conductive layer 301.

[0073] 3 to 6, in some embodiments of the present application, the electrochromic device includes a first conductive base 1, an electrochromic layer 2, and a second conductive base 3, which are sequentially stacked. The first conductive base 1 includes a first base layer 102 and a first conductive layer 101. The first conductive layer is located on the side of the first base layer closer to the electrochromic layer, and the first base layer 102 covers the first conductive layer 101, thereby preventing the first conductive layer 101 from being exposed from the side of the first base layer 102 and coming into contact with an external power source, which could cause a short circuit, and improving the safety and stability of the first conductive layer 101 in the first base layer 102.

[0074] In addition, the second conductive base 3 comprises a second base layer 302 and a second conductive layer 301, the second conductive layer being provided on the side of the second base layer closer to the electrochromic layer, and the second base layer 302 covering the second conductive layer 301, thereby preventing the second conductive layer 301 from being exposed from the side of the second base layer 302 and coming into contact with an external power source, thereby improving the safety and stability of the first conductive layer 101 in the second base layer 302.

[0075] Specifically, the first conductive base 1 and the second conductive base 3 are parallel to each other. Therefore, when external power is applied to the first conductive base 1 and the second conductive base 3 simultaneously, an electric field is formed between the first conductive base 1 and the second conductive base 3, and the applied electric field can cause a unidirectional movement of charges in a material with conductive properties.

[0076] As shown in Figures 3, 4, 5, 6, 11 and 14, in some embodiments of the present application, both a first bus bar 4 and a second bus bar 5 are provided on at least one circumferential side of the electrochromic device, thereby reducing the surface resistance of the electrochromic device and increasing the color change speed of the electrochromic layer 2.

[0077] The first bus bar 4 and the second bus bar 5 may be provided on any one side of the electrochromic device. In some examples, the first bus bar 4 and the second bus bar 5 may both be provided on opposite sides of the electrochromic device.

[0078] Additionally, the first bus bar 4 and the second bus bar 5 may both be provided on adjacent sides of the electrochromic device. In some examples, two or more adjacent first bus bars 4 may be integrally molded, and two or more second bus bars 5 may be integrally molded.

[0079] In some other examples, two or more adjacent first bus bars 4 may be mechanically connected to each other, for example, by any one of button connections, fastenings, welding, or a combination thereof, and two or more adjacent second bus bars 5 may be mechanically connected to each other, for example, by any one of button connections, fastenings, welding, or a combination thereof.

[0080] In still other examples, the angle formed by the connection between two or more first bus bars 4 may be specifically limited according to actual conditions, and the angle formed by the connection between two or more second bus bars 5 may be specifically limited according to actual conditions, and the connection method between multiple first bus bars 4 or multiple second bus bars 5 can be adjusted according to the shape of the electrochromic device, thereby increasing the versatility and use efficiency of the first bus bars 4 and second bus bars 5.

[0081] It can be understood that both the first bus bar 4 and the second bus bar 5 are provided on one circumferential side of the electrochromic device. Alternatively, both the first bus bar 4 and the second bus bar 5 are provided on any two circumferential sides of the electrochromic device. Alternatively, both the first bus bar 4 and the second bus bar 5 are provided on any three circumferential sides of the electrochromic device. Alternatively, both the first bus bar 4 and the second bus bar 5 are provided on each circumferential side of the electrochromic device.

[0082] As shown in Figures 4, 5 and 9, the first bus bar 4 is electrically connected to the first conductive layer 101 of the first conductive base 1 by at least one first connecting portion 6, thereby electrically connecting the first bus bar 4 and the first conductive base 1 through the first connecting portion 6, and supplying an external power source through the first bus bar 4. The connection method between the first connecting portion 6 and the first conductive segment 10 may be any one of welding, adhesion, clinging and crimping.

[0083] At the same time, as shown in Figures 4, 6 and 10, the second bus bar 5 is electrically connected to the second conductive layer 301 of the second conductive base 3 by at least one second connection part 7, thereby electrically connecting the second bus bar 5 and the second conductive base 3 through the second connection part 7, and an external power source is supplied through the second bus bar 5. The connection method between the second connection part 7 and the second conductive segment 11 may be any one of welding, adhesion, clinging and crimping.

[0084] In addition, there is a gap between the orthogonal projection of the first busbar 4 on the plane where the first conductive base 1 is located and the first conductive base 1, and there is a gap between the orthogonal projection of the second busbar 5 on the plane where the second conductive base 3 is located and the second conductive base 3, which prevents the first busbar 4 and the second busbar 5 from coming into contact with the first conductive base 1 or the second conductive base 3, thereby improving the safety and stability of the electrochromic device.

[0085] The first bus bar 4 and the second bus bar 5 are each used to connect to an external power source, and the first connection portion 6 and the second connection portion 7 are arranged alternately, thereby increasing the safety of the connection between the first bus bar 4 and the first conductive segment 10 and the safety of the connection between the second bus bar 5 and the second conductive segment 11, thereby reducing the surface resistance of the electrochromic device and increasing the discoloration speed of the electrochromic layer 2.

[0086] In some embodiments of the present application, the first connecting portion 6 and the second connecting portion 7 are both covered with an insulating layer in the circumferential direction, both ends of the first connecting portion 6 and both ends of the second connecting portion 7 are conductive surfaces, and both the first connecting portion 6 and the second connecting portion 7 are conductive wires. Specifically, the material of the first connecting portion 6 and the second connecting portion 7 is any one of copper, aluminum, copper-clad aluminum, and copper-clad steel.

[0087] It should be noted that in some embodiments of the present application, the connection portion corresponds to the lead-out portion, that is, the first connection portion corresponds to the first lead-out portion, and the second connection portion corresponds to the second lead-out portion.

[0088] At the same time, the first connection portion 6 and the second connection portion 7 are both covered with an insulating layer in the circumferential direction, and the first connection portion 6 and the second connection portion 7 are both conductive wire materials. Specifically, the material of the first connection portion 6 and the second connection portion 7 is any one of copper, aluminum, copper-clad aluminum, and copper-clad steel.

[0089] The material of the insulating layer is not particularly limited and may be any material having insulating properties. In some examples, the insulating layer may be any one of PVC (Polyvinyl chloride), PE (Polyethylene), PP (Polypropylene), fluoroplastic, rubber, and mica tape.

[0090] Preferably, both the first bus bar 4 and the second bus bar 5 are provided in the circumferential direction of the electrochromic device. This allows electrical connections to be formed simultaneously around the peripheries of the first bus bar 4 and the first conductive base 1, and electrical connections to be formed simultaneously around the peripheries of the second bus bar 5 and the second conductive base 3, thereby significantly reducing the surface resistance of the electrochromic device, significantly improving the color-changing efficiency of the electrochromic device, and enhancing the practicality of the electrochromic device.

[0091] As shown in Figures 3, 4, 5, 11 and 14, in yet another embodiment of the present invention, in order to avoid the first bus bar 4 and the second bus bar 5 coming into contact with each other and causing a short circuit, a gap is provided between the orthogonal projection of the first bus bar 4 on the plane where the second conductive base 3 is located and the second bus bar 5.

[0092] Furthermore, there is a gap between the orthogonal projection of the first busbar 4 on the plane where the second conductive base 3 is located and the orthogonal projection of the second busbar 5 on the plane where the second conductive base 3 is located, which prevents contact between the first busbar 4 and the second busbar 5 and improves safety and stability during the process of connecting the first busbar 4 and the second busbar 5 to an external power source, while also improving safety and stability during the use of the electrochromic device.

[0093] In yet another embodiment of the present invention, to improve the stability of the electrochromic device, an insulating layer is provided around both the first bus bar 4 and the second bus bar 5, preventing the first bus bar 4 and the second bus bar 5 from coming into contact with each other and causing a short circuit. At the same time, both ends of the first bus bar 4 and the second bus bar 5 are conductive. The conductive portions can establish an internal electrical connection within the first bus bar 4 or the second bus bar 5. The conductive portions can also establish an electrical connection between the first bus bar 4 and an external power source (e.g., an electrical connection with the cathode or anode of the external power source) or between the second bus bar 5 and the external power source (e.g., an electrical connection with the anode or cathode of the external power source), thereby improving the safety and stability of the first bus bar 4 and the second bus bar 5 when the external power source is turned on.

[0094] In this embodiment, the material of the first bus bar 4 and the second bus bar 5 is not particularly limited. In some examples, the first bus bar 4 and the second bus bar 5 may be any conductive material, such as copper wire or a conductive wire formed by applying a drop of silver paste, or an FPC (Flexible Printed Circuit). This allows the bus bar characteristics required for different usage scenarios to be met, improving the applicability of the electrochromic device.

[0095] The electrochromic layer 2 includes an electrochromic material layer, an electrolyte layer, and an ion storage layer, which are sequentially attached. The electrochromic material layer, the electrolyte layer, and the ion storage layer may be made of materials available in the prior art, and the present invention does not particularly limit them.

[0096] Embodiments of the present invention further provide an electrochromic apparatus including the above-described electrochromic device. In some examples, the electrochromic apparatus further includes a first substrate layer, a first packaging layer, an electrochromic device, a second packaging layer, and a second substrate layer, which are stacked in sequence. In other examples, the first packaging layer and the second packaging layer cover the electrochromic device. In such cases, covering the electrochromic device within the two packaging layers can more effectively package the electrochromic device, and the placement of the packaging layer and the substrate layer can also provide physical support for the bus bars in the electrochromic device, preventing the bus bars from breaking, snapping, or falling off from their connections.

[0097] In all examples shown and described herein, any specific values ​​should be construed as illustrative only and not limiting, and as such, other instances of the example embodiments may have different values.

[0098] It should be noted that like symbols and letters represent like items in the following drawings, so that once an item is defined in one drawing, it does not need to be further defined and interpreted in subsequent drawings.

[0099] The above examples merely represent some embodiments of the present invention, and although the description is specific and detailed, it should not be understood as limiting the scope of the present invention. However, those skilled in the art may make further modifications and improvements without departing from the concept of the present invention, and all of these fall within the scope of protection of the present invention. [Explanation of symbols]

[0100] 1...first conductive base, 2...electrochromic layer, 3...second conductive base, 4...first bus bar, 5...second bus bar, 6...first connecting portion, 7...second connecting portion, 8...first groove, 9...second groove, 10...first conductive segment, 11...second conductive segment, 102...first base layer, 101...first conductive layer, 302...second base layer, 301...second conductive layer, 12...sealant layer, 13...base body.

Claims

1. The electrolytic capacitor includes a first conductive base, an electrochromic layer, and a second conductive base, which are laminated in this order, the first conductive base including a first base layer and a first conductive layer provided on the first base layer closer to the electrochromic layer, and the second conductive base including a second base layer and a second conductive layer provided on the second base layer closer to the electrochromic layer; a first bus bar electrically connected to the first conductive layer by at least one first connection portion and a second bus bar electrically connected to the second conductive layer by at least one second connection portion are both provided on at least one side in a circumferential direction of the electrochromic device; a gap exists between an orthogonal projection of the first bus bar on a plane on which the first conductive base is located and the first conductive base, and a gap exists between an orthogonal projection of the second bus bar on a plane on which the second conductive base is located and the second conductive base; An electrochromic device characterized by:

2. a first groove is formed in at least one side wall of the first conductive base in a circumferential direction, and a second groove is formed in at least one side wall of the second conductive base in a circumferential direction; the first grooves and the second grooves are each provided in plural, the first grooves being spaced apart from one another along the circumferential direction of the first conductive base, and the second grooves being spaced apart from one another along the circumferential direction of the second conductive base; 10. The electrochromic device of claim 1.

3. the first conductive base includes a first conductive layer provided with a plurality of first conductive segments, each of which has an orthogonal projection in a plane where the second conductive base is located located within one of the second grooves; the second conductive base includes a second conductive layer provided with a plurality of second conductive segments, each of which has an orthogonal projection in a plane where the first conductive layer is located located within one of the first grooves; and there is a gap between the orthogonal projection of the first conductive segment in the plane where the second conductive layer is located and the second conductive segment, and the first conductive segment and the second conductive segment are each used for connection to an external power source.

3. The electrochromic device of claim 2.

4. the first bus bar is electrically connected to the first conductive segment by the first connection portion, and the second bus bar is electrically connected to the second conductive segment by the second connection portion; 4. The electrochromic device of claim 3.

5. the first bus bar and the second bus bar are both covered with an insulating layer in a circumferential direction, and both ends of the first bus bar and both ends of the second bus bar are conductive portions; 10. The electrochromic device of claim 1.

6. There is a mechanical connection between two or more adjacent first bus bars and / or there is a mechanical connection between two or more adjacent second bus bars.

6. The electrochromic device of claim 5.

7. a gap exists between an orthogonal projection of the first bus bar on a plane in which the second conductive base is located and an orthogonal projection of the second bus bar on a plane in which the second conductive base is located; 10. The electrochromic device of claim 1.

8. an insulating layer is provided around both the first connection portion and the second connection portion in a circumferential direction; 10. The electrochromic device of claim 1.

9. a gap exists between the second groove and an orthogonal projection of the first groove on a plane where the second conductive base is located, and a gap exists between the first groove and an orthogonal projection of the second groove on a plane where the first conductive base is located; 3. The electrochromic device of claim 2.

10. an orthogonal projection of the first groove on a plane where the second conductive base is located partially overlaps with the second groove; and an orthogonal projection of the second groove on a plane where the first conductive base is located partially overlaps with the first groove; 3. The electrochromic device of claim 2.

11. 11. An electrochromic device comprising: a first substrate layer; a first package layer; an electrochromic device according to claim 1; a second package layer; and a second substrate layer, which are laminated in this order; and the first package layer and the second package layer cover the electrochromic device.

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