High-energy-saving passive window

Abstract

The invention discloses a high-energy-saving passive window which comprises a window frame, a composite glass unit, a strip-shaped tray and a magnetic transmission assembly. The window frame is provided with a window and a containing cavity located above the window, the composite glass unit is internally provided with a heat insulation cavity only communicating with the containing cavity, the heat insulation cavity is filled with aerogel particles, the strip-shaped tray is movably arranged in the height direction of the heat insulation cavity and supports the aerogel particles, and the magnetic transmission assembly is in magnetic linkage with an internal driven magnetic part through an external driving magnetic part. The strip-shaped tray is driven to ascend and descend, the strip-shaped tray can be driven to move in the heat insulation cavity by adjusting the height of the driving magnetic part, and aerogel particles are transferred between the heat insulation cavity and the containing cavity. Flexible switching of three use states of pure heat insulation, pure visual field heat insulation and visual field consideration is achieved, and the energy-saving effect in a strong light scene is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of passive window technology, specifically a highly energy-efficient passive window. Background Technology

[0002] Passive windows, as a core component of building energy conservation systems, primarily function to reduce heat transfer between indoors and outdoors through optimized structural design, thereby lowering building energy consumption while ensuring natural indoor lighting and the interaction between indoor and outdoor views. With the continuous improvement of building energy conservation standards, current technological improvements to passive windows mainly focus on optimizing the window frame sealing structure, upgrading glass materials (such as Low-E glass and insulated glass), or adjusting the interlayer structure of the glass (such as increasing the number of insulated layers or filling with inert gas), resulting in relatively limited solutions.

[0003] However, existing technologies have significant drawbacks: On the one hand, the thermal insulation design of traditional passive windows struggles to address the problem of rapid indoor temperature rise caused by direct sunlight. Even with high-performance insulated glass, strong sunlight can still cause indoor temperatures to rise through radiative heat transfer, increasing air conditioning energy consumption. On the other hand, improving thermal insulation by adding a shading layer or using low-transmittance glass sacrifices the quality of natural indoor lighting and the ability to interact with the outdoors, failing to meet the dual requirements of thermal insulation and energy saving while maintaining visual transparency. Furthermore, while some passive windows are equipped with adjustable shading components, these are mostly external or internal louver structures, resulting in poor sealing performance, easy dust accumulation, high maintenance costs, and large space occupation. Moreover, they are difficult to integrate efficiently with the overall energy-saving system of passive windows.

[0004] Therefore, existing passive window technology has limited energy-saving effects in strong light scenarios and cannot effectively meet the core requirements of blocking direct strong light and providing good visual interaction. A breakthrough technical solution is urgently needed to solve the above contradictions and further improve the overall energy-saving performance and usage flexibility of passive windows. Summary of the Invention

[0005] The present invention addresses the problem that existing technical solutions are too simplistic by providing a solution that is significantly different from existing technologies. It mainly provides a highly energy-efficient passive window to solve the technical problems mentioned in the background.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A highly energy-efficient passive window includes: A window frame having at least one window, wherein a receiving cavity with a bottom opening is provided within the window frame and above the window; A composite glass unit having at least one heat insulation cavity, the heat insulation cavity being connected only to a receiving cavity, and the volume of the receiving cavity being not less than the volume of the heat insulation cavity; A strip-shaped tray is movably disposed in the heat insulation cavity along the height direction of the composite glass unit. The edge of the strip-shaped tray slides in contact with / gap fits the cavity wall around the heat insulation cavity. Aerogel particles are filled in the heat insulation cavity and above the strip-shaped tray. The magnetic drive assembly includes a driven magnetic component disposed at the bottom of the strip tray and an active magnetic component disposed outside the heat insulation cavity. The active magnetic component moves along the height direction of the composite glass unit and drives the driven magnetic component to move synchronously under the action of magnetic force.

[0007] Furthermore, the aerogel particles are spherical aerogel particles.

[0008] Furthermore, the aerogel particles are one or more of the following: silica aerogel particles, alumina aerogel particles, and ceramic-coated modified carbon-based aerogel particles.

[0009] Furthermore, the ratio of the width of the insulation cavity to the particle size of the aerogel particles is not less than 2:1.

[0010] Furthermore, the top of the heat insulation cavity is located within the opening range of the bottom of the receiving cavity, and the receiving cavity is V-shaped or U-shaped with its width gradually decreasing from top to bottom.

[0011] Furthermore, the strip tray is provided with elastic sealing strips around its top perimeter, and the strip tray slides and seals with the cavity wall of the heat insulation cavity through the sealing strips; The length and width of the sealing strip are both greater than the length and width of the insulation cavity, and the top four sides of the strip tray are all chamfered, forming a deformation restriction zone between the chamfered area of ​​the strip tray and the cavity wall of the insulation cavity.

[0012] Furthermore, the ratio of the particle size of the aerogel particles to the maximum width of the deformation-restricting region is not less than 1:1.

[0013] Furthermore, the active magnetic component includes a guide rail, a slider, and a strong magnet. Both sides of the composite glass unit are provided with guide rails along the height direction that abut against the inner periphery of the window frame. The front of the guide rail is provided with a groove for the slider to slide, and the back of the guide rail is provided with a strip hole that connects to the groove. The strong magnet is embedded in the back of the slider. The slider is equipped with a locking component, which is used to lock the slider at any height position on the guide rail.

[0014] Furthermore, the driven magnetic component includes a wedge block and a rubber roller. Both ends of the bottom of the strip tray are provided with wedge blocks that can be attracted by a strong magnet. The rubber roller is rotatably disposed on the front side of the wedge block near the guide rail. The wedge block is rolled and connected to the heat insulation cavity wall by means of the rubber roller. The rubber roller is arranged in two rows at intervals in the height direction of the heat insulation cavity.

[0015] Furthermore, the ratio of the width of the wedge block to the width of the strip tray is not less than 1:2.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Breakthrough Solution to Core Contradictions, Balancing Multiple Needs: This invention abandons the single structural optimization approach of existing passive windows, and innovatively achieves compatibility for strong light blocking + heat insulation and energy saving with natural lighting + visual interaction through an adjustable filling design of aerogel particles. By flexibly switching between three usage modes, it solves the problem of indoor temperature rise caused by direct sunlight while ensuring visual needs in different scenarios, filling a gap in existing technology.

[0017] 2. Significantly improved energy-saving performance: Aerogel particles have extremely low thermal conductivity, and their filled insulation cavity can form a highly efficient thermal insulation barrier. Compared with traditional double-glazed glass or Low-E glass, it can significantly reduce heat transfer from strong light radiation and convection. In summer, under strong sunlight, it can reduce indoor temperature by 3-5℃, significantly reducing air conditioning energy consumption. At the same time, the combined design of the receiving cavity and the strip tray ensures efficient transfer and full filling of aerogel particles, further improving thermal insulation stability.

[0018] 3. Flexible use and wide adaptability: The height of the strip tray can be adjusted by the magnetic transmission component, which can precisely control the ratio of the light-transmitting and heat-insulating area to the viewing area, so as to meet the personalized needs of different time periods (such as low light in the morning and strong light at noon) and different usage scenarios (such as office, residence and leisure); the aerogel particles support a variety of material selection (silica, alumina, ceramic coating modified carbon-based, etc.), and can be flexibly configured according to different needs such as cost performance, high temperature resistance, and lightweight, so as to adapt to various building environments.

[0019] 4. Optimized structure and extended service life: The spherical aerogel particle design reduces friction between particles and wear on the inner surface of the glass, preventing scratches; the sealing strip of the strip tray works in conjunction with the deformation limiting area to prevent particle debris from entering the sliding gap and reduce the risk of jamming; the rubber roller design of the driven magnetic component converts sliding friction into rolling friction, reducing component wear and preventing the strip tray from tilting, ensuring sealing performance and smooth sliding, and significantly extending the maintenance cycle and service life of the passive window.

[0020] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 A sectional view along the AA direction; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the structure of the active magnetic component of the present invention; Figure 6 This is a schematic diagram of the driven magnetic component of the present invention; Figure 7 This is a schematic diagram of the slider structure of the present invention; Numbering on the map: 1. Window frame; 2. Window; 3. Receiving cavity; 4. Composite glass unit; 5. Thermal insulation cavity; 6. Strip tray; 7. Aerogel particles; 8. Driven magnetic component; 9. Active magnetic component; 10. Slide groove; 11. Strip hole; 12. Locking assembly; 13. Deformation restriction area; 801. Wedge block; 802. Rubber-coated roller; 901, guide rail; 902, slider; 903, strong magnet. Detailed Implementation

[0022] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0023] It should be noted that when an element is said to be fixed to another element, it can be directly on the other element or there may be an intermediate element. When an element is said to be connected to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms vertical, horizontal, left, right and similar expressions used in this article are for illustrative purposes only.

[0024] Please refer to the appendix carefully. Figure 1 -Appendix Figure 7 A highly energy-efficient passive window, comprising: A window frame 1 has at least one window 2, and a receiving cavity 3 with a bottom opening is provided inside the window frame 1 and above the window 2; The composite glass unit 4 is provided with at least one heat insulation cavity 5, which is only connected to the receiving cavity 3, and the volume of the receiving cavity 3 is not less than the volume of the heat insulation cavity 5. A strip tray 6 is movably disposed in the heat insulation cavity 5 along the height direction of the composite glass unit 4. The edge of the strip tray 6 slides in contact with / gap fits the cavity wall around the heat insulation cavity 5. Aerogel particles 7 are filled in the heat insulation cavity 5 and above the strip tray 6. The magnetic drive assembly includes a driven magnetic element 8 disposed at the bottom of the strip tray 6 and an active magnetic element 9 disposed outside the heat insulation cavity 5. The active magnetic element 9 moves along the height direction of the composite glass unit 4 and drives the driven magnetic element 8 to move synchronously under the action of magnetic force.

[0025] When the external ambient temperature is high and the light intensity is strong, the active magnetic component 9 descends. Under the action of magnetic force, the active magnetic component 9 attracts the driven magnetic component 8 to descend synchronously, thereby causing the strip tray 6 on the driven magnetic component 8 to descend. When the strip tray 6 descends, the aerogel particles 7 in the receiving cavity 3 fall into the heat insulation cavity 5 under the action of gravity and accumulate on the strip tray 6. Since the filled aerogel particles 7 are not completely transparent and have a higher refractive index and excellent heat insulation performance compared to glass, the area of ​​the composite glass unit 4 filled with aerogel particles 7 can form a light-transmitting and heat-insulating zone with low direct sunlight and low heat transfer, while the area of ​​the composite glass unit 4 not filled with aerogel particles 7 can form a landscape viewing zone with high transparency. The landscape viewing zone can provide good natural lighting and views when the light intensity is weak and when interaction between indoor and outdoor views is required.

[0026] In addition, by adjusting the height of the strip tray 6, the ratio of the lighting and heat preservation area to the landscape view area can be adjusted. Furthermore, since the lighting and heat preservation area is located above the landscape view area, a combination can be adopted in which the lighting and heat preservation area is located above the line of sight, while the landscape view area is located within the line of sight. This satisfies the needs of heat preservation and heat insulation as well as the interaction between indoor and outdoor views. The usage is flexible and can meet different needs.

[0027] In summary, this invention utilizes aerogel particles 7 to fill the insulation cavity 5 of the composite glass unit 4, and combines the design of the receiving cavity 3, the strip tray 6, and the magnetic drive assembly to enable the composite glass unit 4 to switch between three usage states: heat insulation, providing indoor-outdoor visual interaction, and providing both heat insulation and indoor-outdoor visual interaction. This not only makes it flexible in use but also meets different usage needs.

[0028] Compared to existing passive windows that improve thermal insulation by modifying the window frame structure, glass material, and glass layer structure, this invention breaks through the limitations of traditional passive windows by addressing the issue of increased indoor temperature caused by direct sunlight. It employs an innovative design that adjusts the filling state of the composite glass unit 4, resolving the pain point of existing passive windows in being unable to simultaneously block direct sunlight and provide good indoor-outdoor visibility. Compared to existing methods of optimizing the thermal insulation performance of passive windows, this invention significantly improves the thermal insulation performance, especially in high-light-intensity scenarios.

[0029] Preferably, the aerogel particles 7 are spherical aerogel particles to reduce powder debris generated between the aerogel particles 7 due to friction and collision. Furthermore, the spherical aerogel particles can greatly reduce wear on the inner surface of the composite glass unit 4, and avoid or greatly delay the generation of visible scratches on the inner surface of the glass.

[0030] Preferably, the aerogel particles 7 are one or more combinations of silica aerogel particles, alumina aerogel particles, and ceramic-coated modified carbon-based aerogel particles. For example, if cost-effectiveness is a priority, modified silica aerogel particles are preferred; if high temperature and high wear resistance are required, alumina aerogel particles are preferred; if lightweight and wear-resistant are required, ceramic-coated modified carbon-based aerogel particles are preferred.

[0031] Preferably, the ratio of the width of the heat insulation cavity 5 to the particle size of the aerogel particles 7 is not less than 2:1, that is, the aerogel particles 7 in the heat insulation cavity 5 are stacked in at least two layers in the direction perpendicular to the composite glass unit 4, so as to improve the heat insulation and protection against direct sunlight.

[0032] The top of the insulation cavity 5 is located within the opening at the bottom of the receiving cavity 3 to ensure that the spherical aerogel particles in the insulation cavity 5 can be smoothly pushed into the receiving cavity 3. Furthermore, the receiving cavity 3 is V-shaped or U-shaped with its width gradually decreasing from top to bottom to ensure that all the spherical aerogel particles in the receiving cavity 3 can fall smoothly into the insulation cavity 5.

[0033] Among them, the top four sides of the strip tray 6 are provided with elastic sealing strips 8, and the strip tray 6 slides and seals with the cavity wall of the heat insulation cavity 5 through the sealing strips 8. The length and width of the sealing strip 8 are both greater than the length and width of the heat insulation cavity 5, and the top four sides of the strip tray 6 are all chamfered. The chamfered area of ​​the strip tray 6 and the cavity wall of the heat insulation cavity 5 form a deformation restriction area 13. The deformation restriction area 13 is used to limit the downward bending range and the shape of the extreme position of the sealing strip 8.

[0034] To ensure good contact between the sealing strip 8 and the wall of the insulation cavity 5, the total length and width of the sealing strip 8 should be slightly greater than the length and width of the strip tray 6. When the strip tray 6 rises, the edges of the sealing strip 8 will bend downwards under friction. If not properly secured... The sealing strip 8 prevents the powder and debris generated by the wear of spherical aerogel particles from entering the space between the side of the strip tray 6 and the wall of the heat insulation cavity 5 after long-term use. This would increase the sliding resistance of the strip tray 6, cause scratches on the inner surface of the glass of the composite glass unit 4, and cause powder and debris to be adsorbed on the inner surface of the glass, thus affecting the appearance.

[0035] Preferably, the ratio of the particle size of the aerogel particles 7 to the maximum width of the deformation restriction zone 13 is not less than 1:1. When the maximum width of the deformation restriction zone 13 is greater than half the particle size of the spherical aerogel particles, the edge of the sealing strip 8 bends downward to the deformation restriction zone 13 due to friction as the strip tray 6 rises. If the particle size of the spherical aerogel particles is smaller than the maximum width of the deformation restriction zone 13, the spherical aerogel particles are easily stuck between the edge of the sealing strip 8 and the wall of the heat insulation cavity 5 and cannot roll, resulting in increased resistance to the rise of the strip tray 6 and easily causing the strip tray 6 to jam.

[0036] The active magnetic component 9 includes a guide rail 901, a slider 902, and a strong magnet 903, such as a rubidium magnet. Both sides of the composite glass unit 4 are provided with guide rails 901 along the height direction that abut against the inner periphery of the window frame 1. The front of the guide rail 901 is provided with a groove 10 for the slider 902 to slide, and the back of the guide rail 901 is provided with a strip hole 11 that connects to the groove 10. The strong magnet 903 is embedded in the back of the slider 902. A locking component 12 is provided on the slider 902, which is used to lock the slider 902 at any height position of the guide rail 901.

[0037] Conventionally, the locking component 12 uses a pin locking method. For example, the front of the slider 902 has a transverse hole for the pin to be inserted, and the front of the guide rail 901 has multiple support structures along the height direction to support the pin. Alternatively, if the active magnetic component 9 is operated manually, a socket structure can be provided on the front of the slider 902. The two sliders 902 at both ends can be linked by an operating rod with a plug-in structure at both ends. That is, the raising and lowering of the operating rod can drive the two sliders 902 to rise and fall.

[0038] Furthermore, the slider 902 can also incorporate a micro-climbing mechanism, such as a roller that rotates and stops against the inner side of the slide groove 10 driven by a micro-stepping motor. It can also be linked with smart home devices. For example, when the irradiation sensor detects that the irradiation intensity is too high, the central control unit controls the micro-climbing mechanism to start, driving the strip tray 6 to descend to the bottom of the heat insulation cavity 5, thus achieving automated control.

[0039] Although some embodiments of the locking component 12 have been listed, the ways in which the slider 902 is locked on the guide rail 901 are not limited to the above embodiments. The specific implementation can be reasonably configured according to the actual production and use requirements, and will not be elaborated here.

[0040] The driven magnetic component 8 includes a wedge block 801 and a rubber roller 802. Both ends of the bottom of the strip tray 6 are provided with wedge blocks 801 that can be attracted by a strong magnet 903. The rubber roller 802 is rotatably disposed on the front of the wedge block 801 near the guide rail 901. The wedge block 801 is rolled and connected to the wall of the heat insulation cavity 5 by means of the rubber roller 802. The rubber roller 802 is arranged in two rows at intervals in the height direction of the heat insulation cavity 5.

[0041] Compared to the sliding contact or clearance fit between the wedge block 801 and the wall of the heat insulation cavity 5, the rolling contact between the wedge block 801 and the wall of the heat insulation cavity 5 via two rows of rubber rollers 802 avoids the problems of high sliding resistance of the wedge block 801 and wear on the inner surface of the composite glass unit 4 that exist in the sliding contact between the wedge block 801 and the wall of the heat insulation cavity 5. It also prevents scratches on the inner surface of the glass from affecting the aesthetics. Furthermore, it avoids the problems of the wedge block 801 being attracted by the strong magnet 903 and moving closer to the wall of the heat insulation cavity 5, which would cause sliding friction between the wedge block 801 and the wall of the heat insulation cavity 5 and cause the strip tray 6 to tilt, which exist in the clearance fit between the wedge block 801 and the wall of the heat insulation cavity 5.

[0042] Preferably, the width ratio of the wedge block 801 to the width of the strip tray 6 is not less than 1:2, so as to avoid the strip tray 6 tilting due to uneven support force, which would affect the smoothness of the sliding of the strip tray 6 and the sealing between the sealing strip 8 and the inner wall of the heat insulation cavity 5.

[0043] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A high energy saving passive window characterized in that, The application relates to a window frame (1) provided with at least one window (2), a containing cavity (3) with an open bottom being arranged in the window frame (1) and above the window (2), a composite glass unit (4) provided with at least one heat insulation cavity (5) which is only communicated with the containing cavity (3) and the volume of the containing cavity (3) is not less than that of the heat insulation cavity (5), a strip-shaped tray (6) movably arranged in the heat insulation cavity (5) along the height direction of the composite glass unit (4), the edges of the strip-shaped tray (6) are in sliding contact / gap fit with the cavity walls around the heat insulation cavity (5), and aerogel particles (7) are filled in the heat insulation cavity (5) and above the strip-shaped tray (6), a magnetic transmission assembly which comprises a driven magnetic part (8) arranged at the bottom of the strip-shaped tray (6) and a driving magnetic part (9) arranged outside the heat insulation cavity (5), the driving magnetic part (9) moves along the height direction of the composite glass unit (4) and drives the driven magnetic part (8) to move synchronously under the action of magnetic force. The aerogel particles (7) are spherical aerogel particles in a spherical shape. The aerogel particles (7) are a combination of one or more of silica aerogel particles, alumina aerogel particles and ceramic coating modified carbon-based aerogel particles. The ratio of the width of the heat insulation cavity (5) to the particle size of the aerogel particles (7) is not less than 2:

1. The top of the heat insulation cavity (5) is located within the opening range of the bottom of the containing cavity (3), and the containing cavity (3) is V-shaped or U-shaped with the width gradually decreasing from top to bottom.

2. A high energy saving passive window according to claim 1, characterized in that, The top of the strip-shaped tray (6) is provided with elastic sealing rubber strips (8) around the periphery, and the strip-shaped tray (6) is in sliding sealing fit with the cavity walls of the heat insulation cavity (5) through the sealing rubber strips (8).

3. A high energy saving passive window according to claim 1, characterized in that, The length and width of the sealing rubber strips (8) are greater than those of the heat insulation cavity (5), and the top of the strip-shaped tray (6) is chamfered, and a deformation limiting area (13) is formed between the chamfered area of the strip-shaped tray (6) and the cavity walls of the heat insulation cavity (5).

4. A high energy saving passive window according to claim 1, characterized in that, The ratio of the particle size of the aerogel particles (7) to the maximum width of the deformation limiting area (13) is not less than 1:

1.

5. A high energy saving passive window according to claim 1, wherein, The driving magnetic part (9) comprises a guide rail (901), a sliding block (902) and a strong magnet (903), guide rails (901) are arranged on the two sides of the composite glass unit (4) and abut against the inner circumferential side of the window frame (1) along the height direction, the front surface of the guide rail (901) is provided with a sliding groove (10) for the sliding block (902), the back surface of the guide rail (901) is provided with a strip-shaped hole (11) communicated with the sliding groove (10), and the strong magnet (903) is embedded on the back surface of the sliding block (902).

6. A high energy saving passive window according to claim 1, characterized in that, A locking assembly (12) is arranged on the sliding block (902) and is used for locking the sliding block (902) at any height position of the guide rail (901). ​ 7. A high energy saving passive window according to claim 6, characterized in that, ​ 8. A high energy saving passive window according to claim 1, wherein, ​ ​ 9. A high energy saving passive window according to claim 8, characterized in that, The driven magnetic part (8) comprises a wedge block (801) and a rubber roller (802), both ends of the bottom of the strip-shaped tray (6) are provided with the wedge block (801) capable of being attracted by a strong magnet (903), the rubber roller (802) is rotationally arranged on the front face of the wedge block (801) close to the guide rail (901), the wedge block (801) is connected with the cavity wall of the heat insulation cavity (5) through the rubber roller (802), and two rows of the rubber rollers (802) are arranged at intervals in the height direction of the heat insulation cavity (5).

10. A high energy saving passive window according to claim 9, characterized in that, The ratio of the width of the wedge block (801) to the width of the strip-shaped tray (6) is not less than 1:2.

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