Electrochromic device

Abstract

The utility model discloses an electrochromic device. The electrochromic device comprises a first substrate, an electrochromic module formed on the first substrate, and a functional unit setting layer formed on the electrochromic module, a functional unit is accommodated in the functional unit setting layer, and the functional unit at least comprises a power supply unit; the first film layer covers the electrochromic module, the functional unit setting layer covers the first film layer, the second film layer covers the functional unit setting layer, the second substrate is formed on the second film layer, and the organic packaging layer surrounds the electrochromic module, the functional unit setting layer, the second film layer and the lateral direction of the second substrate. The electrochromic module and the power supply unit are configured to be electrically connected with an external control unit. Some embodiments of the utility model provide a self-powered and self-adaptive intelligent dimming energy-saving electrochromic device which can be used as a building material and can be applied to various building environments.

Description

Technical field:

[0001] The present invention relates to an electrochromic device, and in particular to an electrochromic device as a building material. Background technology:

[0002] Ceiling glass, curtain wall glass, car skylights, etc. have been widely used, especially in many iconic buildings, vehicles, ships, rail transit, aerospace and other fields. Due to higher requirements for glass energy saving, comfort, dimming ability, light pollution prevention, low carbon, etc., there are many limitations in application due to high energy consumption, non-dynamic adjustment, insufficient comfort and other factors; how to solve these problems, achieve near-zero carbon emissions, improve comfort, contribute to carbon neutrality and carbon peak, and achieve adaptive active changes and self-powered clean energy are the problems that need to be solved in 3C, home appliances, new energy automotive glass products, smart display decoration and building curtain walls.

[0003] Existing electrochromic products are mainly used to control light transmittance and are used as building curtain walls, automobile glass, etc. Due to the unique advantages of electrochromic such as anti-glare, infrared controllable, and complete ultraviolet blocking, skylight glass and curtain wall glass are increasingly used. However, the electrochromic devices used in the skylight or curtain wall of the current electrochromic glass have the disadvantages of high energy consumption, glaring light, lack of comfort, and power consumption. Utility model content:

[0004] One of the purposes of the present application is to provide an improved electrochromic device so as to solve at least one of the shortcomings of the existing electrochromic devices for skylights or curtain walls, such as high energy consumption, glaring light, insufficient comfort, and power consumption.

[0005] To this end, some embodiments of the present application provide an electrochromic device, which includes a first substrate, an electrochromic module formed on the first substrate, and a functional unit setting layer formed on the electrochromic module; the functional unit setting layer accommodates a functional unit, and the functional unit includes at least a power supply unit; a second film layer covering the functional unit setting layer, and a second substrate formed on the second film layer, surrounding the electrochromic module, the functional unit setting layer, the second film layer and a lateral organic encapsulation layer of the second substrate; the electrochromic module and the power supply unit are configured to be electrically connected to an external control unit.

[0006] In some embodiments, both the first substrate and the second substrate are planar substrates.

[0007] In some embodiments, the first substrate and the second substrate are both curved substrates, the first substrate includes a first curved portion and a first black printed area surrounding the first curved portion; the second substrate includes a second curved portion and a second black printed area surrounding the second curved portion; the position of the first black printed area corresponds to the position of the second black printed area, and the thin-film energy storage module is arranged between the first black printed area and the second black printed area.

[0008] In some embodiments, the functional unit setting layer includes a hollow layer or a vacuum layer, and the functional unit is set on the electrochromic module.

[0009] In some embodiments, the functional unit setting layer includes a first film layer, and the functional unit is set on a first sub-layer in the first film layer and surrounded by a second sub-layer.

[0010] In some embodiments, the power supply unit includes a solar power generation module and / or a thin-film lithium battery module electrically connected to the solar power generation module.

[0011] In some embodiments, the solar power generation module is a crystalline silicon solar power generation module and / or a thin film solar power generation module; wherein the thin film solar power generation module is arranged separately from the crystalline silicon solar power generation module; or the thin film solar power generation module is attached to a side of the crystalline silicon solar power generation module adjacent to the first substrate or adjacent to the second substrate.

[0012] In some embodiments, the first film layer and the second film layer are made of PMMA, PVB, EVA, or PU material.

[0013] In some embodiments, the substrate is made of glass, plastic, PMMA, PVF, PE, or PU material.

[0014] In some embodiments, at least one film-type sensor is further included which is integrated into the first film layer and is connected to the control unit.

[0015] In some embodiments, the film sensor includes a film photosensitive element, a film thermal element, and a film temperature and humidity sensor.

[0016] The beneficial effects of the present application are as follows: some embodiments of the present application provide a self-powered, adaptive intelligent dimming energy-saving electrochromic device, which can be used as a building material and can be applied to various building environments, such as: car skylight glass / railway traffic color-changing windows / building doors and windows and curtain wall glass, etc. The solar power generation module and thin-film power storage module of the electrochromic device provided in some embodiments of the present application constitute a self-powered power supply unit, which can achieve all-weather power supply guarantee; the thin-film photosensitive element and temperature and humidity thin-film sensor of the electrochromic device provided in some embodiments of the present application can adaptively adjust the device through the control unit, and can control the internal environment temperature by regulating light heat and radiation. Description of the drawings:

[0017] Figure 1 is a schematic cross-sectional side view of the structure of an electrochromic device according to an embodiment of the present application;

[0018] Figure 2 is a schematic top view of the structure of an electrochromic device according to an embodiment of the present application;

[0019] Figure 3 It is a schematic cross-sectional side view of the structure of an electrochromic device according to another embodiment of the present application. Specific implementation method:

[0020] The implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0021] as follows Figure 1 As shown, the electrochromic device 100 according to the embodiment of the present application includes a first glass substrate 101, an electrochromic module 102, a functional unit setting layer 103, a second film layer 104, and a second glass substrate 105, which are sequentially arranged, and a sealing layer, especially an organic sealing layer 110, which is arranged to surround the electrochromic module 102, the functional unit setting layer 103, the second film layer 104, and the second glass substrate 105. The functional units including a power supply unit including a solar power generation module 106 and / or a thin film type power storage module 107, and at least one thin film type sensor 108 are arranged in the functional unit setting layer 103.

[0022] The electrochromic device is electrically connected to an external control unit 200. The solar power generation module 106 and the thin-film power storage module 107 are electrically connected to the control unit 200 to drive the electrochromic module 102 through the driving circuit 201 in the control unit 200 and to supply power to other functional units, such as various thin-film sensors.

[0023] The film sensor 108 includes one or more of a film photosensitive element, a film thermal element, and a film temperature and humidity sensor.

[0024] The electrochromic module 102 realizes adaptive control adjustment through feedback from the control unit 200 and the thin-film photosensitive element and the thin-film thermosensitive element; the solar power generation module 106, the thin-film power storage module 107, etc. realize self-powered driving of the electrochromic module.

[0025] Among them, the solar power generation module 106 can be a crystalline silicon solar power generation module and / or a thin film solar power generation module; wherein the thin film solar power generation module can be arranged separately from the crystalline silicon solar power generation module, or the thin film solar power generation module can be attached to the side of the crystalline silicon solar power generation module adjacent to the first substrate or adjacent to the second substrate.

[0026] The thin-film power storage module 107 may be a thin-film lithium battery module.

[0027] The functional unit arrangement layer 103 may be a hollow layer, a vacuum layer or a first film layer. For the embodiment in which the functional unit arrangement layer 103 is a first film layer, each functional unit is arranged on the first sublayer 131 of the first film layer and surrounded by the second sublayer 132 of the first film layer. Figure 1 For the embodiment in which the functional unit setting layer 103 is a vacuum layer or a vacuum layer, each functional unit is arranged on the top of the electrochromic module, such as Figure 3 shown.

[0028] The first film layer and the second film layer can be made of materials such as polymethyl methacrylate (PMMA), polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), and polyurethane (PU).

[0029] Therefore, the present application provides a smart electrochromic device with self-power supply, adaptive intelligent dimming and energy saving, which can be used in various skylights, ceilings, curtain walls, doors and windows and other environments, such as: car skylight glass / rail transit color-changing windows / building doors and windows and curtain wall glass, etc.

[0030] In an embodiment of the present application, the solar power generation module 106 and the thin-film lithium battery module 107 form a self-powered power supply unit, which can achieve all-weather power supply guarantee; in an embodiment of the present application, thin-film photosensitive elements and thin-film temperature and humidity sensors adaptively adjust the electrochromic module 102 through the control unit 200, and can control the ambient temperature of a room where the electrochromic device of the present application is installed by regulating light, heat and radiation.

[0031] The control unit 200 may be, for example, Figure 1 , Figure 3As shown, a controller 201 and a first driving circuit 202A and a second driving circuit 202B connected to the controller 201 for driving the electrochromic module 102 may be included.

[0032] The electrochromic module 102 may include a first conductive layer 121 , a first electrochromic layer 122 , an ion conductive layer 123 , a second electrochromic layer 124 , a second conductive layer 125 , and an encapsulation layer 126 .

[0033] The material of the first conductive layer 121 and the second conductive layer 125 is one or more selected from indium tin oxide (ITO), aluminum zinc oxide (AZO), boron zinc oxide (BZO), gallium zinc oxide (GZO), indium gallium zinc oxide (IGZO), and fluorine-doped tin oxide (FTO).

[0034] The material of the first electrochromic layer 122 is one or more selected from tungsten oxide (WOxy), molybdenum oxide (MoOx), niobium oxide (NbOx), titanium oxide (TiOx) and tantalum oxynitride (TaOx).

[0035] The material of the ion conductive layer 123 is selected from the following materials or their mixtures: one or more of lithium silicon oxide (LiSizOx), lithium tantalum oxide (LiTazOx), lithium niobium oxide (LiNbzOx), lithium cobalt oxide (LiCozOx), lithium aluminum nitride oxide (LiAlzOx), lithium phosphide oxide (LiPzOx), and lithium boron oxide (LiBzOx).

[0036] The material of the second electrochromic layer 124 is one or more selected from nickel oxide (NiOx), iridium oxide (IrOx), manganese oxide (MnOx), cobalt oxide (CoOx), tungsten nickel oxide (WNizOx), tungsten iridium oxide (WIrzOx), tungsten manganese oxide (WMnzOx), and tungsten cobalt oxide (WCozOx).

[0037] The first electrochromic layer 122 and the second electrochromic layer 124 have an ion complementary relationship, which can realize linkage color change. For example, when the first electrochromic layer 122 obtains ions, the transmittance decreases, and when the second electrochromic layer 124 loses ions, the transmittance decreases. Therefore, the transmittance variation range of the electrochromic device can be increased; the transmittance adjustment through the stepless dimming and blue-black color change of the first electrochromic layer 122 / the second electrochromic layer 124 can complement the functions of display enhancement and privacy of transparent display, and various colors can also be adjusted.

[0038] This application effectively integrates the electrochromic module 102 and the solar power generation module 106 and / or the thin-film lithium battery module 107 to form a self-powered electrochromic device without the need for additional power supply; the film sensor is used to adaptively adjust the temperature and thermal radiation to automatically control a comfortable environment. It is an important part of future smart life, and has a huge market application prospect in the future and is one of the smart trends in human life.

[0039] It should be understood that the first substrate and the second substrate in the embodiments of the present application can be made of glass, such as plexiglass, and transparent plastic materials or resin materials, such as thermoplastic polyester (PET), polyurethane (PU), polyvinyl fluoride (PVF), polyethylene (PE), or PMMA (acrylic) and other light-transmitting materials with a certain strength.

[0040] The first substrate and the second substrate may be planar, thereby defining a planar electrochromic device, for example, used as a curtain wall, door or window. In a planar electrochromic device, the solar power generation module 106 may be arranged at any position.

[0041] The first substrate and the second substrate may be curved, such as a 3D curved surface, a single curved surface, or a specially configured curved surface, thereby defining a curved electrochromic device, such as a canopy, a dome, or a porthole. In a curved electrochromic device, for example, Figure 2 As shown, the first substrate 101 and the second substrate 105 are both curved substrates, the first substrate 101 includes a first curved portion 101A and a first black printed area 101B surrounding the first curved portion; the second substrate 105 includes a second curved portion 105A and a second black printed area 105B surrounding the second curved portion; the position of the first black printed area 101B corresponds to the position of the second black printed area 105B, and the thin-film lithium battery module 107 is arranged between the first black printed area 101B and the second black printed area 105B. In this structure, since the solar power generation module 106 can be a thin-film solar module, it can be arranged at any position, but the power is small, and a crystalline silicon solar module can also be used, but it has greater rigidity, so it can only be selectively arranged at a position with a smaller curvature radius relative to the first curved portion and the second curved portion.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present application, which should be included in the scope of the claims of the present application.

Claims

1. An electrochromic device, characterized in that: The invention comprises a first substrate, an electrochromic module formed on the first substrate, and a functional unit setting layer formed on the electrochromic module; the functional unit setting layer contains a functional unit, and the functional unit at least includes a power supply unit; a second film layer covering the functional unit setting layer, and a second substrate formed on the second film layer, and an organic encapsulation layer surrounding the electrochromic module, the functional unit setting layer, the second film layer and the lateral side of the second substrate; The electrochromic module and the power supply unit are configured to be electrically connected to an external control unit.

2. The electrochromic device according to claim 1, characterized in that: The first substrate and the second substrate are both planar substrates.

3. The electrochromic device according to claim 1, characterized in that: The first substrate and the second substrate are both curved substrates, the first substrate includes a first curved portion and a first black printed area surrounding the first curved portion; the second substrate includes a second curved portion and a second black printed area surrounding the second curved portion; The position of the first black printing area corresponds to the position of the second black printing area, and the thin-film power storage module is arranged between the first black printing area and the second black printing area.

4. The electrochromic device according to claim 1, characterized in that: The functional unit setting layer includes a hollow layer or a vacuum layer, and the functional unit is set on the electrochromic module.

5. The electrochromic device according to claim 1, characterized in that: The functional unit setting layer includes a first film layer, and the functional unit is set on a first sub-layer in the first film layer and surrounded by a second sub-layer.

6. The electrochromic device according to claim 1, characterized in that: in, The power supply unit includes a solar power generation module and / or a thin-film lithium battery module electrically connected to the solar power generation module.

7. The electrochromic device according to claim 6, characterized in that: The solar power generation module is a crystalline silicon solar power generation module and / or a thin film solar power generation module; wherein the thin film solar power generation module is arranged separately from the crystalline silicon solar power generation module; or the thin film solar power generation module is attached to a side of the crystalline silicon solar power generation module adjacent to the first substrate or adjacent to the second substrate.

8. The electrochromic device according to claim 5, characterized in that: The first film layer and the second film layer are made of PMMA, PVB, EVA, or PU material.

9. The electrochromic device according to claim 1, characterized in that: The substrate is a substrate made of glass, plastic, PMMA, PVF, PE, or PU material.

10. The electrochromic device according to claim 5, characterized in that: Also included is at least one film-type sensor integrated into the first film layer, the film-type sensor being connected to the control unit.

11. The electrochromic device according to claim 10, characterized in that: The film sensor comprises a film photosensitive element, a film thermal element and a film temperature and humidity sensor.

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