CN219179748U - Electrochromic device, color-changing glass and color-changing window - Google Patents

Abstract

The application provides an electrochromic device, a piece of color-changing glass and a color-changing window, and belongs to the field of electrochromic. 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; the edge of the first conductive layer is provided with a first bus bar, and the edge of the second conductive layer is provided with a second bus bar; two ends of the first bus bar are respectively and electrically connected with the first conductive circuit; and/or two ends of the second bus bar are respectively and electrically connected with the second conductive circuit; the wire diameter of the first conductive line is smaller than that of the first bus bar, and the wire diameter of the second conductive line is smaller than that of the second bus bar; the resistance of the first conductive line is greater than the resistance of the first conductive layer, and the resistance of the second conductive line is greater than the resistance of the second conductive layer. The two ends of the bus bar are electrically connected with the conductive circuit, so that the conduction rate of current on the conductive layer is improved, and the color change rate of the electrochromic device is improved.

Description

Electrochromic device, color-changing glass and color-changing window

Technical Field

The application relates to the field of electrochromic, in particular to an electrochromic device, a piece of electrochromic glass and a piece of electrochromic window.

Background

In order to ensure the color-changing speed of the device, the existing electrochromic device often has bus bars around, and the bus bars are shielded by using surrounding frames or other shielding components, but in some special application products, one side is not allowed to be shielded, for example, the upper side edge of a side window of a vehicle cannot be shielded, otherwise, the visual field of people can be influenced, meanwhile, the shielding areas of the two side edges are very narrow, and the bus bars are difficult to set, so that the bus bars are generally designed only on the lower side.

In the prior art, bus bars are arranged on one side only, so that the color changing rate of the electrochromic device is slow, and the current of a conductive layer on one side is excessive easily, so that the service life of the electrochromic device is influenced.

Disclosure of Invention

In view of this, the object of the present application is to overcome the deficiencies in the prior art, and to provide an electrochromic device, a electrochromic glass and a electrochromic window.

The application provides the following technical scheme: an electrochromic device includes a first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer, and a second substrate layer laminated in this order;

the edge of the first conductive layer is provided with a first bus bar, and the edge of the second conductive layer is provided with a second bus bar;

the edge of the electrochromic device is provided with a first conductive circuit and/or a second conductive circuit;

the two ends of the first bus bar are respectively and electrically connected with the first conductive circuit, and/or the two ends of the second bus bar are respectively and electrically connected with the second conductive circuit;

the wire diameter of the first conductive line is smaller than the wire diameter of the first bus bar, the wire diameter of the second conductive line is smaller than the wire diameter of the second bus bar, and/or the resistance of the first conductive line is smaller than the resistance of the first bus bar, and the resistance of the second conductive line is smaller than the resistance of the second bus bar;

the resistance of the first conductive line is greater than the resistance of the first conductive layer, and the resistance of the second conductive line is greater than the resistance of the second conductive layer.

In some embodiments of the present application, the first conductive trace and the second conductive trace are transparent conductive traces.

Further, the first conductive circuit is arranged on the first conductive layer, and the edge distance from the first conductive circuit to the first conductive layer is L1, wherein L1 is less than or equal to 35mm;

the second conductive circuit is arranged on the second conductive layer, and the distance from the second conductive circuit to the edge of the second conductive layer is L2, wherein L2 is less than or equal to 35mm.

Further, the first bus bar includes a plurality of spaced apart first bus bar segments, at least one of the first bus bar segments being electrically connected to the first conductive trace;

the second bus bar includes a plurality of spaced apart second bus bar segments, at least one of which is electrically connected to the second conductive trace.

Further, a first U-shaped etching line is formed on the first conductive layer, and the first bus bar and the first conductive line are respectively located on the outer side of the first etching line.

Further, a third bus bar is arranged on the first conductive layer, and the third bus bar is located on the inner side of the first etched line.

Further, a first bending part is arranged at one end, far away from the first bus bar, of the first conductive circuit, and the length of the first bending part is smaller than the vertical distance between the first conductive circuit and the first etching line.

Further, a second U-shaped etching line is formed on the second conductive layer, and the second bus bar and the second conductive line are respectively located on the outer side of the second etching line.

Further, a fourth bus bar is arranged on the second conductive layer, and the fourth bus bar is located on the inner side of the second etched line.

Further, a second bending part is arranged at one end, far away from the second bus bar, of the second conductive circuit, and the length of the second bending part is smaller than the vertical distance between the second conductive circuit and the second etching line.

Some embodiments of the present application provide a color-changing glass comprising a laminate of glass layers and the electrochromic device.

Some embodiments of the present application provide a color shifting window comprising a window frame and the color shifting glass, wherein the window frame completely covers the first bus bar, the second bus bar, the first conductive line and the second conductive line.

Embodiments of the present application have the following advantages: the first conductive circuit and/or the second conductive circuit are/is arranged at the edge of the electrochromic device, two ends of the first bus bar are respectively and electrically connected with the first conductive circuit, the wire diameter of the first conductive circuit is smaller than that of the first bus bar, the effective color-changing area of the electrochromic device is improved, and the resistance of the first conductive circuit is larger than that of the first conductive layer, so that the conduction rate of current on the first conductive layer is improved, and the color-changing rate of the electrochromic device is improved. Through respectively with the both ends of second busbar with second conductive line electricity connection, and the wire footpath of second conductive line is less than the wire footpath of second busbar, promote electrochromic device's effective area of discolouring, and the resistance of first conductive line is greater than the resistance of first conductive layer to promote the conduction rate of electric current on the second conductive layer, thereby promote electrochromic device's rate of discolouring.

The current in the first bus bar is shunted through the first conductive circuit so as to reduce the current size of the first bus bar, and the current in the second bus bar is shunted through the second conductive circuit so as to reduce the current size of the second bus bar, so that the stability and the service life of the electrochromic device in the color change process are improved.

In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a first embodiment of an electrochromic device according to some embodiments of the present application;

FIG. 2 is a schematic diagram showing the structure of a first embodiment of a first conductive layer in the electrochromic device of FIG. 1 at a viewing angle;

FIG. 3 is a schematic diagram showing the structure of a first embodiment of a second conductive layer in the electrochromic device of FIG. 1 at a viewing angle;

FIG. 4 is a schematic diagram showing the structure of a view angle of a second embodiment of a first conductive layer in the electrochromic device of FIG. 1;

FIG. 5 shows a schematic structural view of a second embodiment of a second conductive layer of the electrochromic device of FIG. 1;

FIG. 6 illustrates a schematic structural view of a second embodiment of an electrochromic device according to some embodiments of the present application;

FIG. 7 is a schematic diagram showing the structure of a view angle of the first conductive layer in the electrochromic device of FIG. 6;

fig. 8 is a schematic structural view of a third embodiment of an electrochromic device according to some embodiments of the present application;

FIG. 9 is a schematic diagram showing the structure of a view angle of the second conductive layer in the electrochromic device of FIG. 8;

fig. 10 is a schematic structural view of a fourth embodiment of an electrochromic device according to some embodiments of the present application;

FIG. 11 is a schematic structural view showing a view angle of a first conductive layer in the electrochromic device of FIG. 10;

FIG. 12 is a schematic diagram showing the structure of a view angle of a second conductive layer in the electrochromic device of FIG. 10;

fig. 13 is a schematic structural view of another embodiment of a first conductive layer of an electrochromic device according to some embodiments of the present application;

fig. 14 is a schematic structural view of a view of other embodiments of a second conductive layer in an electrochromic device according to some embodiments of the present application;

fig. 15 illustrates a schematic structural view of an electrochromic device according to some embodiments of the present application at a viewing angle.

Description of main reference numerals:

10-a first substrate layer; 20-a first conductive layer; 30-an electrochromic layer; 40-a second conductive layer; 50-a second substrate layer; 60-a first bus bar; 70-a second bus bar; 201-a first etching line; 401-a second etched line; 80-a first conductive trace; 801-a first bend; 90-a second conductive trace; 901-a second bend; 301-a layer of electrochromic material; 302-an electrolyte layer; 303-an ion storage layer; 100-a third bus bar; 110-fourth bus bar; 120-a first color change zone; 130-a second color change zone.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the templates is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, in some embodiments of the present application, an electrochromic device is provided, which is mainly applied to side windows of automobiles, architectural glass, and the like, and includes a first base layer 10, a first conductive layer 20, an electrochromic layer 30, a second conductive layer 40, and a second base layer 50, which are sequentially stacked.

The edge of the first conductive layer 20 is provided with a first bus bar 60, and the first bus bar 60 is electrically connected to the first conductive layer 20. Meanwhile, a second bus bar 70 is disposed at an edge of the second conductive layer 40, and the second bus bar 70 is electrically connected to the second conductive layer 40.

The first bus bar 60 can be disposed on either side of the edge of the first conductive layer 20, and the second bus bar 70 can be disposed on either side of the edge of the second conductive layer 40.

In this embodiment, the first bus bar 60 and the second bus bar 70 are respectively located on the same side of the edge of the electrochromic device, and it is understood that when the electrochromic device is used, the process of shielding the bus bars is reduced by shielding the side of the electrochromic device on which the first bus bar 60 and the second bus bar 70 are disposed, so as to improve the aesthetic property of the electrochromic device and the effective color-changing area of the electrochromic device.

Meanwhile, a first conductive line 80 and/or a second conductive line 90 are provided at an edge of the electrochromic device. It will be appreciated that in some embodiments, the edges of the electrochromic device are provided with first conductive traces 80 and second conductive traces 90. In some embodiments, the edge of the electrochromic device is provided with a first conductive trace 80 or a second conductive trace 90.

The number of the first conductive lines 80 and the second conductive lines 90 may be any integer value of one, two or more, and may be specifically set according to practical situations. In this application, the first conductive line 80 and the second conductive line 90 are two, and the first conductive line 80 and the second conductive line 90 are both linear structures and parallel to each other. Wherein, two first conductive wires 80 are disposed at two ends of the first bus bar 60, respectively.

In this embodiment, both ends of the first bus bar 60 are electrically connected to the first conductive traces 80, respectively. It should be noted that the number of the first conductive wires 80 is two, and the two conductive wires are electrically connected to two ends of the first bus bar 60, respectively.

Wherein the wire diameter of the first conductive line 80 is smaller than the wire diameter of the first bus bar 60, so as to reduce the influence of the first conductive line 80 on the effective color change area of the electrochromic device. The effective color change region of the electrochromic device refers to a region inside the U-shaped conductive line formed by connecting the two first conductive lines 80 and the first bus bar 60.

In addition, the resistance of the first conductive line 80 is greater than the resistance of the first conductive layer 20, and by increasing the resistance of the first conductive line 80, the conduction speed of the current on the first conductive layer 20 is increased, so as to increase the color changing speed of the electrochromic device.

In this embodiment, two ends of the second bus bar 70 are electrically connected to the second conductive wires 90, and two second conductive wires 90 are disposed at two ends of the second bus bar 70 and are electrically connected to two ends of the second bus bar 70.

Wherein the wire diameter of the second conductive trace 90 is smaller than the wire diameter of the second bus bar 70 to reduce the effect of the first conductive trace 80 on the effective color change area of the electrochromic device. The effective color change region of the electrochromic device refers to a region inside the U-shaped conductive line formed by connecting the two first conductive lines 80 and the first bus bar 60.

Additionally, in some embodiments of the present application, the resistance of the first conductive trace 80 is less than the resistance of the first bus bar 60 to increase the conduction rate of current on the first conductive trace 80. At the same time, the resistance of the second conductive trace 90 is less than the resistance of the second bus bar 70 to increase the conduction rate of current on the second conductive trace 90 and thus increase the color change rate of the electrochromic device.

It will be appreciated that in some embodiments of the present application, the wire diameter of the first conductive trace 80 is less than the wire diameter of the first bus bar 60, the wire diameter of the second conductive trace 90 is less than the wire diameter of the second bus bar 70, or the resistance of the first conductive trace 80 is less than the resistance of the first bus bar 60, and the resistance of the second conductive trace 90 is less than the resistance of the second bus bar 70. In addition, in other embodiments of the present application, the wire diameter of the first conductive trace 80 is smaller than the wire diameter of the first bus bar 60, and the wire diameter of the second conductive trace 90 is smaller than the wire diameter of the second bus bar 70. Meanwhile, or the resistance of the first conductive line 80 is smaller than the resistance of the first bus bar 60, and the resistance of the second conductive line 90 is smaller than the resistance of the second bus bar 70, so as to further increase the conduction speed of the current on the first conductive line 80 and the second conductive line 90, respectively, and thus increase the color change speed of the electrochromic device.

In addition, the resistance of the second conductive line 90 is greater than the resistance of the second conductive layer 40, and by increasing the resistance of the first conductive line 80, the conduction speed of the current on the second conductive layer 40 is increased, so as to increase the color changing speed of the electrochromic device.

It should be noted that in some embodiments of the present application, the first conductive trace 80 and the second conductive trace 90 are transparent conductive traces to enhance the aesthetic appearance of the electrochromic device.

As shown in fig. 2, in some embodiments of the present application, the first conductive trace 80 is disposed on the first conductive layer 20. Specifically, the number of the first conductive lines 80 is two, the two first conductive lines 80 are respectively disposed at two opposite sides of the edge of the first conductive layer 20, and the distance from the first conductive line 80 to the edge of the first conductive layer 20 is L1, where L1 is less than or equal to 35mm, i.e., the value of L1 may be any positive number not greater than 35mm.

The distance from the first conductive trace 80 to the edge of the first conductive layer 20 refers to a vertical distance between the first conductive trace 80 and a side of the first conductive layer 20 that is close to and parallel to the first conductive trace 80.

By reducing the distance of the first conductive trace 80 from the edge of the first conductive layer 20, the effective color change area of the electrochromic device is increased to ensure the visual aesthetics of the electrochromic device. For example, when the electrochromic device is disposed on a side window of an automobile, the first bus bar 60 and the first conductive trace 80 disposed at the edge of the electrochromic device are shielded by the window frame of the automobile, thereby improving the aesthetic appearance of the side window of the automobile.

Additionally, in some embodiments of the present application, the first bus bar 60 includes a plurality of spaced apart first bus bar 60 segments, at least one of the first bus bar 60 segments being electrically connected to the first conductive trace 80.

It is to be understood that the number of the first bus bar 60 segments may be any integer value of two or more, and may be specifically set according to practical situations. Wherein the plurality of primary bus bar 60 segments are arranged linearly.

Specifically, each first conductive trace 80 is electrically connected to a segment of the first bus bar 60, so as to be electrically connected to the first conductive trace 80 when the segment of the first bus bar 60 is electrically connected to an external power source, thereby increasing the conduction rate of the current on the first conductive layer 20.

In addition, the rate of change of color of the electrochromic device is adjusted by adjusting the number of segments of the first bus bar 60 electrically connected to an external power source to adjust the rate of conduction of current on the first conductive layer 20.

As shown in fig. 6, 7 and 15, in some embodiments of the present application, a U-shaped first etching line 201 is formed on the first conductive layer 20, so that the electrochromic device is divided by the first etching line 201 to form the first color-changing region 120 and the second color-changing region 130.

Wherein the first bus bar 60 and the first conductive line 80 are located outside the first etched line 201, respectively. Specifically, when the first bus bar 60 and the second bus bar 70 are both connected to an external power source, the conduction direction of the current on the first conductive layer 20 is conducted from the first conductive layer 20 located outside the first etched line 201 to the first conductive layer 20 located inside the first etched line 201. Meanwhile, the first conductive lines 80 are respectively connected to both ends of the first bus bar 60 to increase the conduction rate of current on the first conductive layer 20 through the first conductive lines 80, thereby increasing the discoloration rate of the electrochromic device.

In the present embodiment, the opening direction of the U-shaped first etching line 201 is directed to the side away from the first bus bar 60.

As shown in fig. 13, in some embodiments of the present application, a third bus bar 100 is disposed on the first conductive layer 20, and the third bus bar 100 is located inside the first etched line 201.

Specifically, the third bus bar 100 and the first bus bar 60 are both located on the same side of the first conductive layer 20, and are both located on the same side of the electrochromic device.

When the first bus bar 60, the second bus bar 70, and the third bus bar 100 are simultaneously connected to an external power source, the first color change region 120 and the second color change region 130 start to change colors. Since the first conductive lines 80 are respectively spot-connected to both ends of the first bus bar 60, the conduction rate of the current on the first conductive layer 20 located in the first color change region 120 is greater than the conduction rate on the first conductive layer 20 in the second color change region 130, i.e., after the color change of the first color change region 120, the color change from both upper and lower sides to the middle is formed in the second color change region 130 at the same time, so as to improve the color change rate and the variety of the color change of the electrochromic device.

As shown in fig. 11 and 13, in some embodiments of the present application, a first bending portion 801 is disposed at an end of the first conductive line 80 away from the first bus bar 60, so as to increase a conduction speed of a current of the first conductive layer 20 on a side away from the first bus bar 60, so as to increase a color changing speed of the electrochromic device at the first bending portion 801.

In this embodiment, the length of the first bending portion 801 is smaller than the vertical distance between the first conductive line 80 and the first etching line 201, so as to improve the effective color-changing area and visual aesthetics of the electrochromic device.

The vertical distance between the first conductive line 80 and the first etched line 201 refers to the vertical distance between the first etched line 201 and the first conductive line 80 on the same side of the electrochromic device.

Preferably, the length of the first bending part 801 is equal to the vertical distance between the first conductive line 80 and the first etched line 201, so that the rate of change of the color of the electrochromic device at the first bending part 801 is increased while the conduction rate of the current on the first conductive layer 20 is increased.

As shown in fig. 2, 8 and 9, in some embodiments of the present application, the second conductive trace 90 is disposed on the second conductive layer 40. The two second conductive lines 90 are respectively disposed at two opposite sides of the edge of the second conductive layer 40, and the distance from the second conductive line 90 to the edge of the second conductive layer 40 is L2, where L2 is less than or equal to 35mm, i.e., the value of L2 may be any positive number not greater than 35mm.

The distance between the second conductive trace 90 and the edge of the second conductive layer 40 refers to a vertical distance between the second conductive trace 90 and a side of the second conductive layer 40 that is close to and parallel to the second conductive trace 90.

By reducing the distance of the second conductive trace 90 from the edge of the second conductive layer 40, the effective color change area of the electrochromic device is increased to ensure the visual aesthetics of the electrochromic device.

Additionally, in some embodiments of the present application, the second bus bar 70 includes a plurality of spaced apart second bus bar 70 segments, at least one of the second bus bar 70 segments being electrically connected to the second conductive trace 90.

It is to be understood that the number of the second bus bar 70 segments may be any integer value of two or more, and may be specifically set according to practical situations. Wherein the plurality of secondary bus bar 70 segments are arranged linearly.

Specifically, each of the second conductive traces 90 is electrically connected to a segment of the second bus bar 70, so as to conduct with the second conductive trace 90 when the segment of the second bus bar 70 is electrically connected to an external power source, thereby increasing the conduction rate of the current on the second conductive layer 40.

In addition, the rate of change of color of the electrochromic device is adjusted by adjusting the number of segments of the second bus bar 70 electrically connected to an external power source to adjust the rate of conduction of current on the second conductive layer 40.

As shown in fig. 8 and 9, in some embodiments of the present application, a U-shaped second etching line 401 is formed on the second conductive layer 40, so as to divide the electrochromic device into the first color-changing region 120 and the second color-changing region 130 by the second etching line 401.

Wherein the second bus bar 70 and the second conductive line 90 are located outside the second etching line 401, respectively. Specifically, when the first bus bar 60 and the second bus bar 70 are connected to an external power source, a conduction direction of a current on the second conductive layer 40 is conducted from the second conductive layer 40 located outside the second etched line 401 to the second conductive layer 40 located inside the second etched line 401. Meanwhile, the second conductive lines 90 are respectively connected to both ends of the second bus bar 70 to increase the conduction rate of the current on the second conductive layer 40 through the second conductive lines 90, thereby increasing the discoloration rate of the electrochromic device.

In the present embodiment, the opening direction of the U-shaped second etching line 401 is directed to the side away from the second bus bar 70.

As shown in fig. 10, a first U-shaped etching line 201 is formed on the first conductive layer 20, and a second U-shaped etching line 401 is formed on the second conductive layer 40. It should be noted that, the orthographic projection of the first etching line 201 on the plane where the second conductive layer 40 is located coincides with the second etching line 401, so that the electrochromic device is divided by the first etching line 201 and the second etching line 401 to form the first color-changing region 120 and the second color-changing region 130, so that when the first bus bar and the second bus bar are simultaneously connected with an external power supply, current sequentially passes through the first color-changing region 120 and the second color-changing region 130, the color-changing diversity of the electrochromic device is improved, and meanwhile, the excessive current of the first conductive layer 20 or the second conductive layer 40 on the electrochromic device is avoided, so that the service life of the electrochromic device is prolonged.

As shown in fig. 14, in some embodiments of the present application, a fourth bus bar 110 is disposed on the second conductive layer 40, and the fourth bus bar 110 is located inside the second etched line 401.

Specifically, the fourth bus bar 110 and the second bus bar 70 are both located on the same side of the second conductive layer 40, and are both located on the same side of the electrochromic device.

When the first bus bar 60, the second bus bar 70, and the fourth bus bar 110 are simultaneously connected to an external power source, the first color change region 120 and the second color change region 130 start to change colors. Since the second conductive lines 90 are respectively spot-connected to both ends of the second bus bar 70, the conduction rate of the current on the second conductive layer 40 located in the first color change region 120 is greater than the conduction rate on the second conductive layer 40 located in the second color change region 130, i.e., after the color change of the first color change region 120, the color change from both upper and lower sides to the middle is formed in the second color change region 130 at the same time, so as to improve the color change rate and the variety of the color change of the electrochromic device.

In addition, in some embodiments of the present application, the third bus bar 100 is disposed on the first conductive layer 20, while the fourth bus bar 110 is disposed on the second conductive layer 40. It can be appreciated that when the first bus bar 60, the second bus bar 70, the third bus bar 100, and the fourth bus bar 110 are simultaneously connected to an external power source, the first conductive traces 80 disposed at both ends of the first bus bar 60 and the second conductive traces 90 disposed at both ends of the second bus bar 70 are used to increase the conduction rate of current on the first conductive layer 20 and the second conductive layer 40, thereby increasing the discoloration rate of the electrochromic device.

As shown in fig. 12 and 14, in some embodiments of the present application, a second bending portion 901 is disposed at an end of the second conductive trace 90 away from the second bus bar 70, so as to increase the conduction speed of the current on the side of the first conductive layer 20 away from the first bus bar 60, so as to increase the color change speed of the electrochromic device at the first bending portion 801.

In this embodiment, the length of the second bending portion 901 is smaller than the vertical distance between the second conductive line 90 and the second etching line 401, so as to improve the effective color-changing area and visual aesthetics of the electrochromic device.

The vertical distance between the second conductive line 90 and the second etched line 401 refers to the vertical distance between the second etched line 401 and the second conductive line 90 on the same side of the electrochromic device.

Preferably, the length of the second bending portion 901 is equal to the vertical distance between the second conductive line 90 and the second etched line 401, so as to increase the rate of current conduction on the second conductive layer 40, and at the same time, increase the rate of color change of the electrochromic device at the second bending portion 901.

In some embodiments of the present application, the electrochromic layer 30 includes an electrochromic material layer 301, an electrolyte layer 302, and an ion storage layer 303, which are sequentially stacked.

Some embodiments of the present application also provide a color-changing glass comprising a laminate of glass layers and the electrochromic device.

The glass layer may be a layer formed by laminating an electrochromic device on one side in the thickness direction of the glass layer to form a color-changing glass.

In addition, the electrochromic device may be embedded in the glass layer to form a color-changing glass.

Alternatively, the glass layer is two-layered, and the electrochromic device is laminated between the two glass layers to form the electrochromic glass.

In addition, some embodiments of the present application also provide a color-changing window comprising a window frame and the color-changing glass.

Specifically, the window frame completely covers the first bus bar 60, the second bus bar 70, the first conductive trace 80, and the second conductive trace 90.

The first bus bar 60, the second bus bar 70, the first conductive line 80 and the second conductive line 90 are simultaneously covered by the window frame, so that the attractive appearance of the color-changing glass on the window frame is improved, and the attractive appearance of the color-changing glass in the color-changing process is improved.

In some embodiments of the present application, the color-changing window is used as a side window of an automobile. It will be appreciated that, since the side window of the car can be lifted up and down on the window frame, both the edge of the bottom of the side window and both the side edges of the side window are covered by the window frame of the car during the lifting process, i.e. a U-shaped screening zone is formed.

When the side window rises to the highest point, the shielding area is an area surrounded by the upper edge of the lower window frame and the corresponding position of the side window.

Meanwhile, the electrochromic device is divided into the first and second colored regions 120 and 130 by the first and/or second etched lines 201 and 401 of the U shape.

It should be noted that, in the lifting process of the side window of the automobile, the U-shaped second color-changing area 130 can be blocked by the window frame, that is, the bottom of the U-shaped second color-changing area 130 is located at the bottom of the window frame. Meanwhile, the bus bars and the etching lines in the color-changing window are shielded, so that the attractiveness of the side window in the lifting process is improved, the attractiveness in the color-changing process is improved, and the experience of a user is improved.

In addition, in some embodiments of the present application, the edge of the color-changing glass is provided with a shielding area, and the shielding area completely covers the bus bar and the etching line, so that the bus bar, the conductive line and the etching line in the color-changing glass are prevented from being revealed, and the aesthetic property of the color-changing glass is improved.

Wherein the blocking area may be a black coating applied to the edge of the color-changing glass.

Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.

Claims (12)

1. An electrochromic device is characterized by comprising a first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer and a second substrate layer which are sequentially stacked;

the edge of the first conductive layer is provided with a first bus bar, and the edge of the second conductive layer is provided with a second bus bar;

the edge of the electrochromic device is provided with a first conductive circuit and/or a second conductive circuit;

the two ends of the first bus bar are respectively and electrically connected with the first conductive circuit, and/or the two ends of the second bus bar are respectively and electrically connected with the second conductive circuit;

the wire diameter of the first conductive line is smaller than the wire diameter of the first bus bar, the wire diameter of the second conductive line is smaller than the wire diameter of the second bus bar, and/or the resistance of the first conductive line is smaller than the resistance of the first bus bar, and the resistance of the second conductive line is smaller than the resistance of the second bus bar;

the resistance of the first conductive line is greater than the resistance of the first conductive layer, and the resistance of the second conductive line is greater than the resistance of the second conductive layer.

2. The electrochromic device according to claim 1, wherein the first conductive trace and the second conductive trace are transparent conductive traces.

3. The electrochromic device according to claim 1, wherein said first conductive track is provided on said first conductive layer, said first conductive track being at an edge distance L1 from said first conductive layer, wherein L1 is less than or equal to 35mm;

and/or the second conductive circuit is arranged on the second conductive layer, and the edge distance from the second conductive circuit to the second conductive layer is L2, wherein L2 is less than or equal to 35mm.

4. The electrochromic device according to claim 1, wherein said first bus bar comprises a plurality of spaced apart first bus bar segments, at least one of said first bus bar segments being electrically connected to said first conductive trace;

and/or the second bus bar comprises a plurality of spaced apart second bus bar segments, at least one of the second bus bar segments being electrically connected to the second conductive trace.

5. The electrochromic device according to claim 1, wherein a first etched line of a U shape is provided on the first conductive layer, and the first bus bar and the first conductive line are located outside the first etched line, respectively.

6. The electrochromic device according to claim 5, wherein a third bus bar is provided on the first conductive layer, the third bus bar being located inside the first etched line.

7. The electrochromic device according to claim 5, wherein an end of the first conductive line remote from the first bus bar is provided with a first bent portion, a length of which is smaller than a vertical distance between the first conductive line and the first etched line.

8. The electrochromic device according to claim 1, wherein a second etched line of a U shape is provided on the second conductive layer, and the second bus bar and the second conductive line are located outside the second etched line, respectively.

9. The electrochromic device according to claim 8, wherein a fourth bus bar is provided on the second conductive layer, the fourth bus bar being located inside the second etched line.

10. The electrochromic device according to claim 8, wherein an end of the second conductive trace remote from the second bus bar is provided with a second bend, the length of the second bend being smaller than the vertical distance between the second conductive trace and a second etched line.

11. A color-changing glass comprising laminated glass layers and an electrochromic device according to any one of claims 1 to 10.

12. A color-changing window comprising a window frame and the color-changing glass of claim 11, the window frame completely covering the first bus bar, the second bus bar, the first conductive trace, and the second conductive trace.

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