Electrochromic smart window

CN224745258UActive Publication Date: 2026-09-11ZHEJIANG JINGTAI GLASS TECH
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Patent Information

Application Number
CN202522546400.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-09-11
Estimated Expiration
2035-12-01

AI Technical Summary

Technical Problem

[0006]本实用新型的目的是提供一种电致变色智能窗,解决了现有技术中电致变色窗无法调整朝向与支撑结构,传统材质重量大、抗冲击差、难适配特殊环境且线路外露影响安全的问题

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Abstract

This utility model relates to the field of electrochromic devices, and more particularly to an electrochromic smart window. It solves the problems of existing electrochromic windows, such as the inability to adjust orientation and support structure, the heavy weight and poor impact resistance of traditional materials, difficulty in adapting to special environments, and exposed wiring affecting safety. An electrochromic smart window includes a support frame, with a substrate inside the support frame. A rotating shaft is located at the top of the substrate, penetrating the top of the substrate. Both ends of the rotating shaft are rotatably connected to the support frame via a pivot. A through hole is formed inside the rotating shaft, passing through the support frame and the substrate sequentially. A sealing layer is fixedly connected to the inner surface of the substrate, and two transparent electrodes are fixedly connected to both sides of the inner surface of the sealing layer. This utility model allows for adjustment of the support mechanism, thereby changing the window's orientation, optimizing the internal structure, and improving the device's service life.
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Description

Technical Field

[0001] This utility model relates to the field of electrochromic devices, and in particular to an electrochromic smart window. Background Technology

[0002] With the development of building energy conservation and intelligence, electrochromic smart windows have attracted much attention in terms of energy saving, lighting, and privacy control. Traditional glass cannot dynamically adjust light transmittance, leading to overheating in summer and heat loss in winter, increasing air conditioning energy consumption. Existing electrochromic technology suffers from problems such as slow response, short cycle life, poor color uniformity, high driving voltage, and high cost, which affect its widespread application. Therefore, there is an urgent need to develop a low-power, fast-response, long-life, and cost-effective electrochromic smart window to meet the needs of building energy conservation and comfort.

[0003] Chinese Patent Publication No. CN205121123U discloses a utility model of an electrochromic smart window, comprising a first glass substrate, a first transparent conductive layer, an electrochromic layer, an electrolyte layer, a second transparent conductive layer, and a second glass substrate, sequentially bonded together. The key technical feature is the inclusion of an encapsulation structure between the electrochromic layer and the second transparent conductive layer for encapsulating and sealing the electrolyte layer. This utility model provides an electrochromic smart window with good sealing performance, good encapsulation flatness, effectively preventing leakage and other problems, and exhibiting uniform coloring.

[0004] Currently, traditional electrochromic windows on the market have significant limitations in their functional design. Their fixed orientation means that additional shading is required to prevent overheating during periods of strong summer sunlight, and they cannot fully utilize natural light for auxiliary heating in winter, resulting in substantial energy waste. Furthermore, the exposed wiring of traditional electrochromic windows not only disrupts the overall aesthetic of the building but also poses safety hazards such as wire wear and leakage. In terms of material selection, these windows often use ordinary glass, which is not only heavy but also has poor impact resistance, causing numerous inconveniences during installation and making them unsuitable for humid or high-temperature environments. In addition, due to the lack of a dedicated adjustment and support structure, dimensional errors during installation or deformation caused by environmental factors over long-term use can easily lead to window tilting, resulting in sealing failure and affecting the stability of the indoor environment.

[0005] Therefore, we propose an electrochromic smart window to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an electrochromic smart window that solves the problems of existing electrochromic windows, such as the inability to adjust the orientation and support structure, the heavy weight and poor impact resistance of traditional materials, difficulty in adapting to special environments, and the safety impact of exposed wiring.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An electrochromic smart window includes a support frame, characterized in that a substrate is disposed inside the support frame, a rotating shaft is disposed on the top of the substrate, the rotating shaft passes through the top of the substrate, both ends of the rotating shaft are rotatably connected to the support frame via a pivot, a through hole is formed inside the rotating shaft, the through hole passes through the support frame and the substrate in sequence, a sealing layer is fixedly connected to the inner surface of the substrate, two transparent electrodes are fixedly connected to both sides of the inner surface of the sealing layer, two color-changing layers are fixedly connected between the two transparent electrodes, and an electrolyte layer is fixedly connected between the two color-changing layers.

[0008] Preferably, a support plate is fixedly connected to one side of the extension end of the support frame, a support column is rotatably connected to one side of each of the two support plates, a connecting column is provided on one side of each of the two support columns, a pad is fixedly connected to one end of each of the two connecting columns, a plurality of positioning holes are provided inside the support column and the connecting column, the positioning holes pass through the support column and the connecting column in sequence, a pin is provided inside the positioning hole, the pin passes through the positioning hole, and one side of each of the two pads is fixedly connected to one side of the base material.

[0009] Preferably, the substrate is made of any one of polyethylene naphthalate, polyimide, polymethyl methacrylate, and quartz substrate.

[0010] Preferably, the transparent electrode is made of any one of inorganic conductive oxides, composite conductive materials, and novel nano-conductive materials.

[0011] Preferably, the material used for the color-changing layer is any one of inorganic color-changing materials, composite color-changing materials, and composite color-changing materials.

[0012] Preferably, the electrolyte layer is made of any one of liquid electrolyte, solid polymer electrolyte, inorganic solid electrolyte, and solid polymer electrolyte.

[0013] This utility model has at least the following beneficial effects: This device allows the substrate to rotate flexibly via a rotating shaft, adjusting the angle to adapt to lighting conditions, reducing energy consumption. Through holes can conceal wiring, solving the problem of exposed wiring. Meanwhile, traditional window frames have poor sealing, making components easily damaged and resulting in short lifespans. The sealing layer of this device can isolate impurities, protect internal components, extend service life, and improve the stability of the electrochromic function and the accuracy of light transmittance control.

[0014] This utility model also has the following beneficial effects: This device offers a variety of substrate options, allowing for flexible selection based on specific scenarios and overcoming the limitations of traditional substrates. Furthermore, its adjustable support system allows for length adjustment based on substrate angle, while the padding disperses force, avoiding the problems associated with traditional window supports and ensuring long-term reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This is a schematic diagram of the overall rear view structure of this utility model; Figure 3 This is a schematic diagram of the overall half-section structure of this utility model; Figure 4 This is a partial cross-sectional view of the present invention. Figure 5 This is a partially enlarged structural schematic diagram of the present invention.

[0017] In the diagram: 1. Support frame; 2. Substrate; 3. Sealing layer; 4. Rotating shaft; 5. Through hole; 6. Transparent electrode; 7. Color-changing layer; 8. Electrolyte layer; 9. Support plate; 10. Support column; 11. Connecting column; 12. Positioning hole; 13. Pin; 14. Pad Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Reference Figure 1-5An electrochromic smart window includes a support frame 1. The support frame 1 contains a substrate 2, and a rotating shaft 4 is mounted on the top of the substrate 2, penetrating the top of the substrate 2. Both ends of the rotating shaft 4 are rotatably connected to the support frame 1 via a pivot. By placing the substrate 2 inside the support frame 1 and mounting the rotating shaft 4 on the top of the substrate 2, penetrating itself and rotatably connected to the support frame 1 at both ends, the substrate 2 can flexibly rotate around the rotating shaft 4, facilitating the adjustment of the smart window's angle to suit different lighting requirements. The rotating shaft 4 has a through hole 5 that passes through both the support frame 1 and the substrate 2. Used for threading wires and pipes, avoiding exposed wiring that affects aesthetics and safety. A sealing layer 3 is fixedly connected to the inner surface of the substrate 2. The sealing layer 3 fixed to the inner surface of the substrate 2 can effectively isolate external dust and moisture, protect the internal transparent electrode 6, color-changing layer 7 and electrolyte layer 8, and extend the service life of the component. The orderly arrangement of the transparent electrode 6, color-changing layer 7 and electrolyte layer 8 can ensure the stable realization of the electrochromic function, allowing the smart window to accurately control the light transmittance and improve indoor comfort. Two transparent electrodes 6 are fixedly connected to both sides of the inner surface of the sealing layer 3. Two color-changing layers 7 are fixedly connected between the two transparent electrodes 6. An electrolyte layer 8 is fixedly connected between the two color-changing layers 7.

[0020] Furthermore, a support plate 9 is fixedly connected to one side of the extension end of the support frame 1, and a support column 10 is rotatably connected with the pivot shaft. A connecting column 11 is also provided on one side of the support column 10, forming an adjustable support structure. A support column 10 is rotatably connected to one side of each of the two support plates 9, and a connecting column 11 is provided on one side of each of the two support columns 10. A pad 14 is fixedly connected to one end of each of the two connecting columns 11. The pad 14 fixed to one end of the connecting column 11 is fixedly connected to one side of the substrate 2, increasing the contact area with the substrate 2, dispersing the supporting force, preventing excessive local stress on the substrate 2 and further improving the reliability and usability of the overall structure of the smart window. For longevity, the support column 10 and the connecting column 11 are provided with several positioning holes 12 inside. The positioning holes 12 pass through the support column 10 and the connecting column 11 in sequence. The positioning holes 12 are provided with pins 13 inside. The pins 13 pass through the positioning holes 12. One side of each of the two pads 14 is fixedly connected to one side of the base material 2. By opening several through positioning holes 12 inside the support column 10 and the connecting column 11 and inserting pins 13 for fixation, the combined length of the support column 10 and the connecting column 11 can be easily adjusted, thereby flexibly supporting the base material 2 at different angles, avoiding the base material 2 from shifting due to its own weight or external force, and ensuring the stability of the smart window after angle adjustment.

[0021] Furthermore, the material selected for substrate 2 is any one of polyethylene naphthalate, polyimide, polymethyl methacrylate, and quartz substrate. These materials all have excellent light transmittance, ensuring the basic light transmittance requirements of the smart window. Each material has its own advantages: polyethylene naphthalate and polyimide have good toughness and strong impact resistance, making them suitable for scenarios requiring structural strength; polymethyl methacrylate is lightweight and easy to process, reducing the overall weight of the smart window and facilitating installation; quartz substrate has high temperature resistance and excellent chemical stability, making it suitable for high-temperature or special chemical environments. This enriches the applicable scenarios of substrate 2, allowing the smart window to select the most suitable substrate according to different usage environments, improving product adaptability and practicality.

[0022] Furthermore, the transparent electrode 6 is made of any one of inorganic conductive oxides, composite conductive materials, and novel nano-conductive materials. Inorganic conductive oxides have stable conductivity and high light transmittance, ensuring that the electrode can achieve its conductive function without affecting the light transmission effect of the smart window. Composite conductive materials combine the advantages of multiple materials, possessing both good conductivity and mechanical properties, and can adapt to slight deformations during the use of the smart window. Novel nano-conductive materials have higher conductivity and specific surface area, which can improve the electrode response speed and make the electrochromic function more sensitive. The selection of multiple materials can meet the design of smart windows with different performance requirements, enhancing product performance diversity and market competitiveness.

[0023] Furthermore, the color-changing layer 7 is made of any one of inorganic color-changing materials, composite color-changing materials, or composite color-changing materials. Inorganic color-changing materials have excellent chemical stability and cycle life, ensuring that the color-changing performance of the smart window does not decay during long-term use. Composite color-changing materials can combine the advantages of different color-changing components to achieve a wider color-changing range and faster color-changing speed, allowing the smart window to accurately adapt to the light transmission needs under different light intensities and improve the user experience. Multiple material options provide more possibilities for optimizing the color-changing performance of the smart window and can meet the personalized needs of different users for color-changing effects.

[0024] Specifically, the electrolyte layer 8 is made of any one of the following materials: liquid electrolyte, solid polymer electrolyte, inorganic solid electrolyte, and solid polymer electrolyte. Liquid electrolyte has high ionic conductivity, which can ensure the rapid progress of the electrochromic reaction. Solid polymer electrolyte and inorganic solid electrolyte have good sealing performance and safety, which can avoid the safety hazards caused by liquid electrolyte leakage. In addition, solid electrolyte has better mechanical properties, which can improve the adhesion of electrolyte layer 8 to other components, reduce interface resistance, and ensure the stability of electrochromic function. The selection of multiple electrolyte materials can be adapted to smart windows with different structural designs, taking into account both performance and safety, and expanding the application range of smart windows.

[0025] In summary: This electrochromic smart window is based on a support frame 1, which contains a substrate 2. A rotating shaft 4 runs through the top of the substrate 2, with both ends rotatably connected to the support frame 1 and through holes 5 for wiring to pass through, facilitating window angle adjustment and wiring. A sealing layer 3 is fixed on the inner surface of the substrate 2, with transparent electrodes 6 on both sides, and a color-changing layer 7 and an electrolyte layer 8 sandwiched in between. The sealing layer 3 protects the internal components. The electrodes conduct electricity, the color-changing layer adjusts light, and the electrolyte provides ion migration, thus realizing the electrochromic function. The extended end of the support frame 1 is connected to a support plate 9, which is then connected to a support column 10. A connecting column 11 with a pad 14 is connected to the side of the column. Each column has positioning holes 12, and pins 13 fix the hole positions to adjust the support length. With the help of the pads 14, the force is dispersed, stably supporting the substrate 2 at different angles, ensuring the overall structural reliability and ease of use.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electrochromic smart window, comprising a support frame (1), characterized in that, The support frame (1) has a substrate (2) inside. The top of the substrate (2) has a rotating shaft (4) that passes through the top of the substrate (2). Both ends of the rotating shaft (4) are rotatably connected to the support frame (1) via a rotating shaft. The rotating shaft (4) has a through hole (5) inside. The through hole (5) passes through the support frame (1) and the substrate (2) in sequence. A sealing layer (3) is fixedly connected to the inner surface of the substrate (2). Two transparent electrodes (6) are fixedly connected to both sides of the inner surface of the sealing layer (3). Two color-changing layers (7) are fixedly connected between the two transparent electrodes (6). An electrolyte layer (8) is fixedly connected between the two color-changing layers (7).

2. The electrochromic smart window of claim 1, wherein, One side of the extension end of the support frame (1) is fixedly connected to a support plate (9). One side of each of the two support plates (9) is rotatably connected to a support column (10). One side of each of the two support columns (10) is provided with a connecting column (11). One end of each of the two connecting columns (11) is fixedly connected to a pad (14). Several positioning holes (12) are opened inside the support column (10) and the connecting column (11). The positioning holes (12) pass through the support column (10) and the connecting column (11) in sequence. A pin (13) is provided inside the positioning hole (12). The pin (13) passes through the positioning hole (12). One side of each of the two pads (14) is fixedly connected to one side of the base material (2).

3. The electrochromic smart window of claim 1, wherein, The substrate (2) is made of any one of polyethylene naphthalate, polyimide, polymethyl methacrylate and quartz substrate.

4. The electrochromic smart window according to claim 1, characterized in that, The transparent electrode (6) is made of any one of inorganic conductive oxides, composite conductive materials, and novel nano-conductive materials.

5. The electrochromic smart window of claim 1, wherein, The material selected for the color-changing layer (7) is any one of inorganic color-changing material, composite color-changing material, and composite color-changing material.

6. The electrochromic smart window of claim 1, wherein, The electrolyte layer (8) is made of any one of liquid electrolyte, solid polymer electrolyte, inorganic solid electrolyte and solid polymer electrolyte.

Citation Information

Patent Citations

  • Electrochromic intelligence window

    CN205121123U