A dimming device, a control method thereof, and a dimming structure

Abstract

The embodiment of the application provides a kind of light adjusting device and its control method, belong to light adjusting glass field, comprising: first substrate, second substrate and the accommodating space of being arranged between the first substrate and the second substrate;Light adjusting function layer, slidingly arranged in the accommodating space;Mobile device, it is arranged in the accommodating space, is connected with the light adjusting function layer;Wherein, the mobile device is used to drive the light adjusting function layer and the displacement of first substrate or second substrate occurs.For the light adjusting device and its control method provided in the embodiment of the application, the adjustable range of sun-shading coefficient of light adjusting device can be increased.

Description

Technical Field

[0001] This application relates to the field of dimming glass technology, and more specifically, to a dimming device and its control method and dimming structure. Background Technology

[0002] The energy-saving performance of transparent building envelopes is mainly measured by thermal parameters, among which the shading coefficient (SC) represents the ratio of the amount of solar radiation that enters the room through the windows to the amount of solar radiation projected onto the outer surface of the windows. This includes both the energy that directly enters the room through solar radiation and the energy that enters the room through secondary heat transfer.

[0003] Dye-based liquid crystal dimming windows are a new type of smart window that can adjust the brightness of light. Common dye-based liquid crystal dimming windows typically include a liquid crystal layer composed of a mixture of negative liquid crystal and dichroic dye. The dichroic dye rotates with the liquid crystal, and its light absorption gradually increases with the rotation angle. However, current dye-based liquid crystal dimming windows have a relatively small range for adjusting the shading coefficient. Summary of the Invention

[0004] This application provides a dimming device and its control method and dimming structure, which aims to increase the adjustable range of the shading coefficient of the dimming device.

[0005] The first aspect of this application provides a dimming device, including:

[0006] A first substrate, a second substrate, and a receiving space disposed between the first substrate and the second substrate;

[0007] A dimming function layer is slidably disposed within the receiving space;

[0008] A mobile device is disposed within the accommodating space and connected to the dimming function layer;

[0009] The moving device is used to drive the dimming functional layer to move toward the first substrate or toward the second substrate.

[0010] Optionally, the dimming device further includes a spacer strip disposed between the first substrate and the second substrate, and the spacer strip, together with the first substrate and the second substrate, forms the receiving space.

[0011] Optionally, the dimming device further includes: a movable beam for fixing the dimming functional layer, the movable beam being disposed within the receiving space and being able to slide along a direction perpendicular to the dimming functional layer;

[0012] The movable beam is located on at least one side of the dimming functional layer.

[0013] Optionally, the moving device includes: a motor and a threaded screw connected to the output end of the motor, wherein the length direction of the threaded screw is parallel to the sliding direction of the moving beam;

[0014] The threaded screw is threaded with a connecting part, which is fixedly connected to the movable beam.

[0015] Optionally, at least one slide rail is provided on the spacer bar, and the movable beam is slidably connected to the receiving space through the at least one slide rail.

[0016] Optionally, the movable beam is provided with a fixing groove, and the dimming function layer is embedded in the fixing groove.

[0017] Optionally, the dimming device further includes: a first sealing portion disposed between the spacer strip and the first substrate, and between the spacer strip and the second substrate;

[0018] The second sealing part is disposed on the side of the spacer away from the receiving space, and the second sealing part is connected to the first substrate and the second window.

[0019] Optionally, the dimming function layer does not have a distance between the side of the moving beam and the spacer strip that is greater than or equal to 1 mm and less than or equal to 5 mm.

[0020] Optionally, the dimming device further includes a control module connected to the mobile device;

[0021] A temperature sensor, connected to the control module, is used to detect the temperature of the side of the second substrate away from the dimming functional layer, and send the detected temperature value to the control module.

[0022] The control module is also used to receive the temperature value and, based on the temperature value, control the moving device to drive the dimming functional layer to move toward the first substrate or toward the second substrate.

[0023] Optionally, the dimming device further includes: a glare sensor connected to the control module, used to detect the glare index on the side of the second substrate away from the dimming functional layer, and send the detected glare index to the control module;

[0024] The control module is also used to receive the glare index and, based on the glare index, change the light transmittance of the dimming functional layer.

[0025] Optionally, the shading coefficient is greater than or equal to 0.18 and less than or equal to 0.61.

[0026] Optionally, the first substrate is laminated glass, and an ultraviolet light blocking layer is disposed inside the first substrate.

[0027] Optionally, the dimming device further includes: a sunshade film disposed on the side of the first substrate close to the second substrate;

[0028] Alternatively, the sunshade film may be disposed on the side of the dimming functional layer near the second substrate.

[0029] Optionally, the containment space is filled with gas;

[0030] The filling gas includes at least one of the following: argon, air, krypton, and xenon.

[0031] A second aspect of this application provides a control method for a dimming device, applied to the dimming device provided in the first aspect of this application, the control method comprising:

[0032] When the dimming device switches to the shading mode, the dimming function layer is controlled to move toward the first substrate;

[0033] When the dimming device switches to heating mode, the dimming function layer is controlled to move toward the second substrate.

[0034] A third aspect of the present application provides a dimming structure, including a dimming device as provided in the first aspect of the present application;

[0035] The dimming structure also includes an indoor side and an outdoor side, with the first substrate disposed on the outdoor side.

[0036] Beneficial effects:

[0037] This application provides a dimming device and its control method and dimming structure. By setting a first substrate, a second substrate and a receiving space between the first substrate and the second substrate, a slidable dimming functional layer is set in the receiving space. At the same time, a moving device is used to drive the dimming functional layer to move toward the first substrate or the second substrate. In this way, when the dimming functional layer moves toward the first substrate or the second substrate, the dimming functional layer is relatively closer to the first substrate or the second substrate, thereby making the adjustment range of the shading coefficient of the dimming device larger, and thus enabling the dimming device to better adapt to user needs. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a dimming device according to an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the dimming functional layer, moving beam, sliding mechanism, and spacer of a dimming device according to an embodiment of this application;

[0041] Figure 3 This is a schematic diagram of a dimming device comprising a control module, a temperature sensor, and a glare sensor, according to an embodiment of this application.

[0042] Figure 4 This is a schematic flowchart of the steps of a control method for a dimming device according to an embodiment of this application;

[0043] Figure 5 This is a schematic diagram of the structure of a dimming functional layer in a dimming device according to an embodiment of this application.

[0044] Explanation of reference numerals in the attached drawings: 11, First substrate; 111, Ultraviolet light blocking layer; 12, Second substrate; 13, Dimming functional layer; 14, Spacer strip; 15, Moving beam; 16, Slide rail; 17, First sealing part; 18, Second sealing part; 19, Sunshade film; 21, Control module; 22, Temperature sensor; 23, Glare sensor; 31, First substrate; 32, Second substrate; 33, Sealing adhesive; 341, First electrode layer; 342, Second electrode layer; 343, Dye liquid crystal layer; 37, Alignment layer; 46, Spacer; 60, Flexible circuit board; A, Accommodation space. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In related technologies, the thermal performance of transparent building envelopes is an important indicator affecting building energy consumption. Green buildings, ultra-low energy buildings, and near-zero energy buildings all have specific requirements for the thermal performance of transparent building envelopes such as windows and skylights.

[0047] Currently, transparent building envelopes such as exterior windows, curtain walls, and skylights often use double-glazed windows with good heat and sound insulation. To further reduce building air conditioning energy consumption, shading devices such as external shading, intermediate shading, and internal shading are usually installed. These shading devices typically use full or partial shading materials such as aluminum alloy louvers, polyester fiber cloth, and fiberglass cloth. When the shading devices are open, they often obstruct the view and affect the transparency of the windows. Moreover, for movable external shading devices with good shading effects, on the one hand, the installation and maintenance costs of the shading devices are high, and on the other hand, the shading devices often affect the overall simplicity and aesthetics of the building's appearance.

[0048] Dye-based liquid crystal windows can change light transmittance and thus the shading coefficient by adjusting different states of the liquid crystal layer. However, in related technologies, dye-based liquid crystal windows only adjust the performance of the liquid crystal layer itself, resulting in a small range of adjustment for the shading coefficient, making it difficult to adapt to different user needs.

[0049] In view of this, embodiments of this application propose a dimming device and its control method. By setting a first substrate, a second substrate, and a receiving space between the first substrate and the second substrate, a slidable dimming functional layer is set in the receiving space. At the same time, a moving device is used to drive the dimming functional layer to move toward the first substrate or the second substrate. In this way, when the dimming functional layer moves toward the first substrate or the second substrate, the dimming functional layer is relatively closer to the first substrate or the second substrate, thereby making the adjustment range of the shading coefficient of the dimming device larger, and thus enabling the dimming device to better adapt to user needs.

[0050] Reference Figure 1 As shown, this application discloses a dimming device, which includes a first substrate 11, a second substrate 12 and a receiving space A disposed between the first substrate 11 and the second substrate 12. The dimming device also includes a dimming functional layer 13 and a moving device.

[0051] Specifically, the first substrate 11 and the second substrate 12 form the basis of the dimming device.

[0052] Reference Figure 1 As shown, there is a receiving space A between the first substrate 11 and the second substrate 12. The receiving space A is a closed space. Therefore, there is also a spacer 14 between the first substrate 11 and the second substrate 12. The spacer 14 is rectangular in shape, and the size of the spacer is adapted to the size of the first substrate 11 and the second substrate 12. The spacer 14 and the first substrate 11 and the second substrate 12 form the receiving space A.

[0053] Furthermore, referring to Figure 5As shown, the dimming functional layer 13 serves as a window for changing the shading coefficient in the dimming device of this application. The dimming functional layer 13 may include a first substrate 31, a second substrate 32, and a liquid crystal layer disposed between the first substrate 31 and the second substrate 32. The first substrate 31 and the second substrate 32 may include glass or flexible materials.

[0054] Specifically, when the first substrate 31 and the second substrate 32 comprise flexible materials, the flexible materials may include one or more of polyethersulfone (PES), polyarylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyimide (PI), polycarbonate (PC), tricellulose acetate (TAC), and cellulose acetate propionate (CAP). In the embodiments of this application, the first substrate 31 and the second substrate 32 are glass substrates.

[0055] At the same time, refer to Figure 5 As shown, the liquid crystal layer may include a first electrode layer 341, a second electrode layer 342, an alignment layer 37, a sealant 33, a dye liquid crystal layer 343, a spacer 46, and a flexible circuit board 60.

[0056] Among them, reference Figure 5 As shown, the first electrode layer 341 is disposed on the side of the first substrate 31 facing the second substrate 32, and the second electrode layer 342 is disposed on the side of the second substrate 32 facing the first substrate 31. The first electrode layer 341 and the second electrode layer 342 can be transparent metal thin films with a total transmittance of 50% or more, based on oxides. Examples include tin oxide, indium oxide, zinc oxide, silver nanowires, etc.

[0057] For example, as a tin oxide (SnO2) system, it can include NESA (tin oxide SnO2), antimony-doped tin oxide (ATO), fluorine-doped tin oxide, etc. As an indium oxide (In2O3) system, it can include indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO), etc. As a zinc oxide (ZnO) system, it can include zinc oxide, aluminum-doped zinc oxide (AZO), gallium-doped zinc oxide, etc. In the embodiments of this application, the first electrode layer 341 and the second electrode layer 342 are made of ITO.

[0058] Reference Figure 5 As shown, the alignment layer 37 has two layers. One alignment layer 37 is disposed on the side of the first electrode layer 341 away from the first substrate 31, and the other alignment layer 37 is disposed on the side of the second electrode layer 342 away from the second substrate 32. The alignment layer 37 may include a photoalignment layer or a rubbing alignment layer.

[0059] Reference Figure 5 As shown, the sealant 33 and the dye liquid crystal layer 343 are located between the two alignment layers 37, and the sealant 33 surrounds the dye liquid crystal layer 343; wherein, the dye liquid crystal layer 343 includes liquid crystal molecules and dye molecules. The dye liquid crystal layer 343 may also contain a chiral agent, and when the liquid crystal material is horizontally aligned, it may also be aligned in a helical shape in the thickness direction of the dye liquid crystal layer 343.

[0060] Reference Figure 5 As shown, multiple spacers 46 are provided and located in the dye liquid crystal layer 343. The spacers 46 serve a supporting function, and one end of the spacer 46 contacts the alignment layer near the second electrode layer 342, while the other end penetrates the alignment layer near the first electrode layer 341 and contacts the first electrode layer 341. The spacers 46 may include frustum-shaped spacers (PS-Photo Spacer) made by exposure and development or bead-shaped spacers (BS-Ball Spacer) made by spraying.

[0061] Reference Figure 5 As shown, the flexible circuit board 60 includes two components: one flexible circuit board 60 is connected to the first electrode layer 341, and the other flexible circuit board 60 is connected to the second electrode layer 342. The flexible circuit board 60 is also connected to an external control board. (Refer to...) Figure 1 As shown, the dimming functional layer 13 is parallel to the first substrate 11 and the second substrate 12, and the dimming functional layer 13 is slidably disposed in the receiving space A. That is to say, the position of the dimming functional layer 13 in the receiving space A can be changed according to the requirements.

[0062] A moving device (not shown) is connected to the dimming functional layer 13. The moving device can drive the dimming functional layer 13 to move towards the first substrate 11 or towards the second substrate 12 to change the shading coefficient of the dimming device. It should be noted that, in an optional embodiment, the moving device may include a conductive structure electrically connected to the dimming functional layer 13. In this way, the flexible circuit board 60 of the dimming functional layer 13 can be directly connected to the conductive structure, so that the flexible circuit board 60 is not pulled when the dimming functional layer 13 moves.

[0063] As the dimming functional layer 13 moves toward the first substrate 11 or toward the second substrate 12, the distance between the dimming functional layer 13 and the first substrate 11 and the second substrate 12 changes relatively, thus affecting the shading coefficient of the dimming functional layer 13. Therefore, this embodiment uses the distance x between the dimming functional layer 13 and the first substrate 11 as a variable to perform simulation experiments and obtain the shading coefficient of the dimming device under different conditions. The specific simulation experiment calculation data are shown in Table 1.

[0064]

[0065] Table 1 Shading coefficient of dimming device at different locations

[0066] In Table 1, the dark and bright states refer to the different states of the dimming functional layer 13 itself. In the dimming functional layer 13, when the driving voltage is 0V, the liquid crystal and dye molecules do not rotate, and the light absorption is minimal, presenting a bright state; when the driving voltage is 10V, the rotation angle of the liquid crystal and dye molecules reaches its maximum value of 90°, and the light absorption also reaches its maximum value, presenting a dark state.

[0067] The bright and dark states of the dimming functional layer 13 also have a certain impact on the shading coefficient. However, under the same conditions, as shown in Table 1, the closer the dimming functional layer 13 is to the first substrate 11, the smaller the shading coefficient of the dimming device. In this case, less heat is transferred to the side of the second substrate 12 away from the dimming functional layer 13. Conversely, the farther the dimming functional layer 13 is from the first substrate 11, the larger the shading coefficient of the dimming device. In this case, more heat is transferred to the side of the second substrate 12 away from the dimming functional layer 13. The shading coefficient of the dimming device is greater than or equal to 0.18 and less than or equal to 0.61.

[0068] Therefore, the dimming device provided in this application embodiment has a shading mode, an intermediate mode, and a heating mode. When the distance between the dimming functional layer 13 and the first substrate 11 is in the range of 1mm to 4mm, the dimming device is in the shading mode; when the distance between the dimming functional layer 13 and the first substrate 11 is in the range of 5mm to 8mm, the dimming device is in the intermediate mode; and when the distance between the dimming functional layer 13 and the first substrate 11 is in the range of 9mm to 12mm, the dimming device is in the heating mode. Users can adjust the working mode of the dimming device according to their own needs.

[0069] Furthermore, when the dimming device is in shading mode, adjusting the light transmittance of the dimming functional layer 13 can simultaneously adjust the radiative heat gain on the side of the second substrate 12 away from the dimming functional layer 13; when the dimming device is in heating mode, adjusting the light transmittance of the dimming functional layer 13 does not affect the heat gain on the side of the second substrate 12 away from the dimming functional layer 13. In addition, the dimming device has multiple intermediate states for users to choose from, taking into account various user needs such as anti-glare, shading, and heating.

[0070] The dimming device provided in this application embodiment moves the dimming functional layer 13 toward the first substrate 11 or toward the second substrate 12, thereby changing the position of the dimming functional layer 13 in the accommodating space A, thereby changing the shading coefficient of the dimming device and increasing the adjustment range of the shading coefficient of the dimming device, so that the dimming device can better meet the different needs of users.

[0071] In one alternative implementation, refer to Figure 1 and Figure 2 As shown, this application embodiment also provides a dimming device, which further includes a movable beam 15 for fixing the dimming functional layer 13.

[0072] Specifically, the movable beam 15 is located within the receiving space A, and the movable beam 15 is slidably connected within the receiving space A in a direction perpendicular to the dimming functional layer 13. That is, the movable beam 15 can be displaced toward the first substrate 11 or toward the second substrate 12, thereby causing the dimming functional layer 13 to be displaced toward the first substrate 11 or toward the second substrate 12. The movable beam 15 may include at least one. Specifically, the movable beam 15 may be provided on only one side of the dimming functional layer 13, or it may be provided on both sides, three sides, or four sides of the dimming functional layer 13. A greater number of movable beams 15 can make the movement of the dimming functional layer 13 more stable.

[0073] Furthermore, referring to Figure 1 and Figure 2As shown, when only one movable beam 15 is provided, the movable beam 15 can be positioned on the spacer 14 below the dimming functional layer 13, and the spacer 14 is provided with at least one slide rail 16. The movable beam 15 is slidably connected to the receiving space A through the slide rail 16. In this embodiment, two sets of slide rails 16 are provided, with the two sets of slide rails 16 located at both ends of the movable beam 15, so that the movable beam 15 can move more stably within the receiving space A. Of course, three, four, or more sets of slide rails 16 can also be provided, which will not be elaborated here. At the same time, when there are more movable beams, correspondingly, there can also be more slide rails 16 on the spacer 14, that is, at least one slide rail 16 can be provided at the position of the movable beam 15 on each side to facilitate the movement of the movable beam 15 and the dimming functional layer 13.

[0074] Furthermore, in this embodiment, the moving device includes a motor and a threaded screw connected to the output end of the motor.

[0075] Specifically, a mounting slot can be provided inside the spacer 14 located below the dimming functional layer 13. The motor can be fixed in this mounting slot, and the threaded screw is connected to the motor, allowing the motor to drive the threaded screw to rotate. Simultaneously, the length direction of the threaded screw is parallel to the sliding direction of the moving beam 15, and a connecting part is threaded onto the threaded screw, which is fixedly connected to the moving beam 15. Thus, when the motor drives the threaded screw to rotate, because the connecting part is fixedly connected to the moving beam 15, the connecting part cannot rotate with the threaded screw. Furthermore, because the connecting part is threaded onto the threaded screw, it will move along the length direction of the threaded screw, thereby causing the moving beam 15 to move along the length direction of the threaded screw.

[0076] The motor can be a servo motor, which can rotate forward and reverse, thereby driving the lead screw to rotate forward or reverse, and thus enabling the moving beam 15 to move in different directions (i.e. towards the first substrate 11 or towards the second substrate 12).

[0077] The dimming device provided in this application embodiment uses the cooperation of a motor and a screw to move the moving beam 15, thereby causing the dimming functional layer 13 to shift, making the adjustment range of the shading coefficient of the dimming device larger, thus meeting the different needs of users.

[0078] It should be noted that similar moving devices can also be used in other embodiments, such as directly using a cylinder to drive the moving beam 15 to move, or using a gear and rack transmission to drive the moving beam 15 to move, as long as the movement of the moving beam 15 can be achieved. In this application embodiment, no further details will be provided.

[0079] In one alternative implementation, refer to Figure 1 and Figure 2 As shown in the embodiment of this application, a dimming device is also provided, in which a fixed groove is provided on the moving beam 15, and the dimming functional layer 13 is embedded in the fixed groove.

[0080] Specifically, the length and width of the fixing groove are adapted to the dimming functional layer 13 so that the dimming functional layer 13 can be better fixed on the moving beam 15. At the same time, since the dimming functional layer 13 is embedded in the fixing groove by physical fixing, it does not need to undergo a high temperature and high pressure lamination process. Therefore, the dimming functional layer 13 has less residual stress and is less prone to problems such as black spots, thereby improving the lamination yield of the dimming functional layer 13.

[0081] Furthermore, since the materials of the dimming functional layer 13 and the spacer 14 are different, they have different coefficients of thermal expansion and contraction. In order to avoid the dimming range of the dimming device being affected by the contact between the dimming functional layer 13 and the spacer 14 under the influence of temperature, in this embodiment of the application, the distance between the side of the dimming functional layer 13 without the moving beam 15 and the spacer 14 is greater than or equal to 1 mm and less than or equal to 5 mm.

[0082] For example, the distance between the side of the dimming function layer 13 without the movable beam 15 and the spacer 14 can be 1mm, 2mm, 3mm, 4mm, 5mm, etc., and those skilled in the art can adjust it according to the actual situation.

[0083] In one alternative implementation, refer to Figure 1 As shown in the figure, this application embodiment also provides a dimming device, which further includes a sunshade film 19.

[0084] Specifically, since the energy distribution of solar radiation mainly includes visible light and near-infrared light, and the dimming functional layer 13 can only absorb the energy of the visible light band, the heat of the near-infrared band can be blocked by the strong reflective effect of the shading film 19.

[0085] exist Figure 2 In this configuration, the shading film 19 is disposed on the side of the dimming functional layer 13 closest to the second substrate 12. In this way, when the dimming functional layer 13 is close to the first substrate 11, the shading film 19 can conduct solar radiation energy across the entire wavelength range to the side of the first substrate 11 away from the dimming functional layer 13, thereby achieving a better shading effect for the dimming device.

[0086] Meanwhile, in other embodiments, the sunshade film 19 can be directly disposed on the side of the first substrate 11 near the second substrate 12.

[0087] Furthermore, referring to Figure 1As shown, since dye liquid crystal materials are highly sensitive to ultraviolet light, to ensure the stability of the dimming functional layer 13 under solar irradiation, the first substrate 11 can be made of laminated glass, and an ultraviolet light blocking layer 111 is disposed within the first substrate 11. The material of the ultraviolet light blocking layer 111 can be polyvinyl butyral (PVB), thereby ensuring that the blocking rate of ultraviolet light with a wavelength less than 390nm is greater than or equal to 99.9%, thus better protecting the dimming functional layer 13.

[0088] In one alternative implementation, refer to Figure 1 As shown in the figure, this application embodiment also provides a dimming device, which further includes a first sealing part 17 and a second sealing part 18.

[0089] Specifically, the first sealing part 17 is disposed between the spacer 14 and the first substrate 11, and between the spacer 14 and the second substrate 12. The first sealing part 17 can be made of hot-melt butyl adhesive, polyisobutylene adhesive, or comfort adhesive strip. The second sealing part 18 is disposed on the side of the spacer 14 away from the receiving space A, and the second sealing part 18 is connected to the first substrate 11 and the second substrate 12. The second sealing part 18 can be made of silicone adhesive, polyurethane adhesive, or polysulfide adhesive.

[0090] The first sealing part 17 and the second sealing part 18 can achieve double sealing of the dimming device, thereby improving the sealing performance of the accommodating space A and ensuring the normal operation of the dimming functional layer 13.

[0091] Furthermore, the accommodating space A is filled with a gas. The thickness of the filling gas (i.e., the distance between the first substrate 11 and the second substrate 12) can be 12 mm. The filling gas can be argon, or a mixture of air and a gas such as krypton or xenon, or a mixture of multiple gases. Different filling gases will affect the heat transfer coefficient of the dimming device. When argon is used, the dimming device can maintain a low level of heat transfer coefficient (K < 1.3 W / m²·K).

[0092] In one alternative implementation, refer to Figure 3 As shown in the figure, this application embodiment also provides a dimming device, which further includes a control module 21 and a temperature sensor 22.

[0093] Specifically, the control module 21 is connected to the mobile device, and the temperature sensor 22 is connected to the control module 21. The temperature sensor 22 is located indoors and is mainly used to detect the temperature of the side of the second substrate 12 away from the dimming functional layer 13, and send the detected temperature value to the control module 21.

[0094] The control module 21 is mainly used to receive the temperature value and, based on the temperature value, control the moving device to drive the dimming functional layer 13 to move toward the first substrate 11 or toward the second substrate 12 to change the shading coefficient of the dimming device.

[0095] For example, a temperature upper limit and a temperature lower limit can be set in the control module 21. When the temperature value received by the control module 21 is higher than the temperature upper limit, the moving device drives the dimming functional layer 13 to move toward the first substrate 11 to adjust the dimming device to a shading mode; when the temperature value received by the control module 21 is lower than the temperature lower limit, the moving device drives the dimming functional layer 13 to move toward the second substrate 12 to adjust the dimming device to a heating mode.

[0096] In this way, the dimming device can automatically adjust the shading coefficient according to the temperature of the side of the second substrate 12 away from the dimming functional layer 13, making the dimming device more convenient to use.

[0097] Furthermore, in this embodiment, reference is made to... Figure 3 As shown, the dimming device may also include a glare sensor 23, which is also disposed on the side of the second substrate 12 away from the dimming functional layer 13, and the glare sensor 23 is connected to the control module 21.

[0098] Specifically, the glare sensor 23 is used to detect the glare index on the side of the second substrate 12 away from the dimming functional layer 13, and sends the detected glare index to the control module 21. The control module 21 is also used to receive the glare index and change the light transmittance of the dimming functional layer 13 according to the glare index. As mentioned above, the dimming functional layer 13 has different light transmittance in bright and dark states, and by changing the light transmittance of the dimming functional layer 13, the amount of light entering the side of the second substrate 12 away from the dimming functional layer 13 can be reduced or increased.

[0099] For example, a glare limit value can be set in the control module 21. When the glare index received by the control module 21 is higher than the glare limit value, the dimming functional layer 13 is changed to a dark state, which reduces the light transmittance of the dimming functional layer 13, thereby reducing the amount of light entering the side of the second substrate 12 away from the dimming functional layer 13, and reducing the glare index of the side of the second substrate 12 away from the dimming functional layer 13.

[0100] In this way, the dimming device can automatically adjust the light transmittance of the dimming functional layer 13 according to the glare index of the side of the second substrate 12 away from the dimming functional layer 13, which further facilitates the use of the dimming device.

[0101] Based on the same inventive concept, embodiments of this application also disclose a dimming structure, which includes any of the dimming devices described above in the embodiments of this application.

[0102] Specifically, the dimming structure may include one of the following: a skylight, a curtain wall, a rail transit vehicle, a passenger car, or an airplane. The dimming structure includes an indoor side and an outdoor side, wherein the first substrate is disposed on the side closer to the outdoors.

[0103] For example, when the dimming structure is a dimming window, the first substrate 11 is closer to the outdoor side and the second substrate 12 is closer to the indoor side; of course, in other embodiments, the first substrate 11 may also be closer to the indoor side and the second substrate 12 may also be closer to the outdoor side, which will not be elaborated on in this embodiment; by changing the position of the dimming functional layer in the dimming device, the shading coefficient of the dimming structure can be changed to meet different user needs.

[0104] Figure 4 A flowchart illustrating the steps of a control method for a dimming device is shown. (Refer to...) Figure 4 As shown, this application provides a control method for a dimming device, applicable to any dimming device described above in the embodiments of this application. The control method includes:

[0105] Step 101: When the dimming device switches to the shading mode, control the dimming function layer 13 to move toward the first substrate 11.

[0106] Specifically, when the dimming device needs to switch to the shading mode, the dimming functional layer 13 is moved toward the first substrate 11 by the moving device, thereby reducing the shading coefficient of the dimming device and reducing the heat entering the side of the second substrate 12 away from the dimming functional layer 13, so that the temperature of the side of the second substrate 12 away from the dimming functional layer 13 drops.

[0107] Step 102: When the dimming device switches to the heating mode, control the dimming function layer 13 to move toward the second substrate 12.

[0108] When the dimming device needs to switch to the heating mode, the dimming functional layer 13 is moved toward the second substrate 12 by the moving device, thereby increasing the shading coefficient of the dimming device and increasing the heat entering the side of the second substrate 12 away from the dimming functional layer 13, so that the temperature of the side of the second substrate 12 away from the dimming functional layer 13 rises.

[0109] By changing the position of the dimming function layer 13 within the accommodating space A, the shading coefficient of the dimming device is changed, and the adjustment range of the shading coefficient of the dimming device is larger, thereby enabling the dimming device to better meet the different needs of users.

[0110] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0111] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. In the absence of further restrictions, an element defined by the phrase "includes a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0112] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application, and the content of this specification should not be construed as a limitation of this application. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all implementation methods here, and obvious changes or modifications derived therefrom are still within the protection scope of this application.

Claims

1. A dimming device, characterized in that, include: A first substrate, a second substrate, and a receiving space disposed between the first substrate and the second substrate; A dimming function layer is slidably disposed within the receiving space; A mobile device is disposed within the accommodating space and connected to the dimming function layer; The moving device is used to drive the dimming functional layer to move toward the first substrate or toward the second substrate; The dimming device further includes: A movable beam is used to fix the dimming functional layer. The movable beam is disposed within the receiving space and slides in a direction perpendicular to the dimming functional layer. The movable beam is located on at least one side of the dimming functional layer; A spacer bar is disposed between the first substrate and the second substrate, and the spacer bar, together with the first substrate and the second substrate, forms the receiving space.

2. The dimming device according to claim 1, characterized in that, The mobile device includes: The motor and the threaded screw connected to the output end of the motor, wherein the length direction of the threaded screw is parallel to the sliding direction of the moving beam; The threaded screw is threaded with a connecting part, which is fixedly connected to the movable beam.

3. The dimming device according to claim 1, characterized in that: At least one slide rail is provided on the spacer bar, and the movable beam is slidably connected to the receiving space through the at least one slide rail.

4. The dimming device according to claim 1, characterized in that: The movable beam is provided with a fixing groove, and the dimming function layer is embedded in the fixing groove.

5. The dimming device according to claim 1, characterized in that, The dimming device further includes: A first sealing portion is disposed between the spacer strip and the first substrate, and between the spacer strip and the second substrate; The second sealing part is disposed on the side of the spacer away from the receiving space, and the second sealing part is connected to the first substrate and the second substrate.

6. The dimming device according to claim 1, characterized in that: The dimming function layer does not have a distance between the side of the moving beam and the spacer strip that is greater than or equal to 1 mm and less than or equal to 5 mm.

7. The dimming device according to any one of claims 1 to 6, characterized in that, The dimming device further includes: The control module is connected to the mobile device; A temperature sensor, connected to the control module, is used to detect the temperature of the side of the second substrate away from the dimming functional layer, and send the detected temperature value to the control module. The control module is also used to receive the temperature value and, based on the temperature value, control the moving device to drive the dimming functional layer to move toward the first substrate or toward the second substrate.

8. The dimming device according to claim 7, characterized in that, The dimming device further includes: A glare sensor, connected to the control module, is used to detect the glare index on the side of the second substrate away from the dimming functional layer, and send the detected glare index to the control module. The control module is also used to receive the glare index and, based on the glare index, change the light transmittance of the dimming functional layer.

9. The dimming device according to any one of claims 1 to 6, characterized in that: The shading coefficient of the dimming device is greater than or equal to 0.18 and less than or equal to 0.

61.

10. The dimming device according to any one of claims 1 to 6, characterized in that: The first substrate is laminated glass, and an ultraviolet light blocking layer is disposed inside the first substrate.

11. The dimming device according to any one of claims 1 to 6, characterized in that, The dimming device further includes: A sunshade film, wherein the sunshade film is disposed on the side of the first substrate near the second substrate; Alternatively, the sunshade film may be disposed on the side of the dimming functional layer near the second substrate.

12. The dimming device according to any one of claims 1 to 6, characterized in that: The containment space is filled with gas; The filling gas includes at least one of the following: argon, air, krypton, and xenon.

13. A control method for a dimming device, applied to the dimming device as described in any one of claims 1-12, characterized in that, The control method includes: When the dimming device switches to the shading mode, the dimming function layer is controlled to move toward the first substrate; When the dimming device switches to the heating mode, the dimming function layer is controlled to move toward the second substrate.

14. A dimming structure, characterized in that: Including the dimming device as described in any one of claims 1-12, The dimming structure also includes an indoor side and an outdoor side, with the first substrate disposed on the outdoor side.

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