A double-layer window-embedded heat-insulating and sun-shading adjustable device combined envelope structure
By installing a combination of double-layer honeycomb curtains and insulation boards in the building's exterior windows, and utilizing a lifting motor to flexibly adjust the shading device, the problem of insufficient thermal insulation performance of exterior windows is solved, achieving efficient thermal insulation and shading effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU RES INST OF BUILDING SCI CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-14
AI Technical Summary
The thermal insulation performance of existing building windows is insufficient, and the heat transfer coefficient is difficult to reach below 1.0W/(m2·K). Furthermore, the external shading facilities are exposed to the outdoors for a long time, posing a safety hazard.
The device employs a double-layered window with a centrally located adjustable heat-insulating and sun-shading system. By setting up double-layered honeycomb curtains and insulation boards between the double-layered windows to form multiple air layers, and combining this with a lifting motor, the sun-shading device can be flexibly adjusted, including three states: fully closed, partially retracted, and fully retracted, thereby improving heat insulation performance.
It significantly improves the thermal insulation performance of exterior windows by 3-10 times, taking into account winter insulation, summer heat insulation, and natural daylighting, while saving materials and space.
Smart Images

Figure CN224496317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device for double-layer windows, and in particular, a combined enclosure structure that uses double-layer honeycomb curtains and insulation boards between double-layer windows to form multiple air layers, thereby significantly improving the heat insulation performance of exterior windows. Background Technology
[0002] With the implementation of the dual-carbon action in the construction sector, building energy efficiency standards are becoming increasingly stringent, making the promotion of ultra-low energy and near-zero energy buildings imperative. Ultra-low energy and near-zero energy buildings require higher-performance building envelopes that balance winter insulation, summer heat insulation, and natural daylighting. Windows are a weak point in the thermal insulation of building envelopes. Currently, most building windows use energy-saving windows with double-glazed glass and thermally broken profiles, with a heat transfer coefficient generally around 2.5 W / (m²). 2 The thermal insulation performance of windows is only a fraction of that of exterior walls, around 1.0 W / (m²). Further improving the thermal insulation performance of windows requires increasing the number of glass layers and using better thermally insulated profiles, significantly increasing costs. Even then, the improvement in insulation performance is limited, and the heat transfer coefficient is unlikely to reach 1.0 W / (m²). 2 Below ·K). In addition, to meet the requirements of summer heat insulation and further energy saving, it is generally necessary to install external sunshade facilities on the outside of the windows, which further increases the cost. However, external sunshade facilities are exposed to the outdoors for a long time, and are subject to wind and rain, which poses certain safety hazards. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device for double-layer windows. In particular, it is a combined enclosure structure that uses double-layer honeycomb curtains and insulation boards between double-layer windows to form multiple air layers, thereby significantly improving the heat insulation performance of exterior windows.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device for double-layered windows, including a window opening. The outer side of the wall at the window opening has an external heat-insulating system, and the inner side has an internal plaster layer. The window opening is fitted with double-layered windows, including an outer window and an inner window, with the outer window connected to the window opening via a subframe and window profile. The adjustable heat-insulating and sun-shading device is installed between the double-layered windows and includes a curtain box, a lifting motor, double-layered honeycomb curtains, a curtain tail frame, a base plate, an insulation board, and a vertical limiting groove. The curtain box is fixed to the upper part of the wall at the window opening using anchor bolts, and a lifting motor is installed inside the curtain box. The double-layered honeycomb curtains are composed of two layers of curtain fabric with a honeycomb cross-section in the vertical direction. The upper end of the double-layered honeycomb curtains is connected to the lifting motor, and the lower end is connected to the curtain tail frame. The base plate is installed on the windowsill between the double-layered windows at the bottom of the window opening to support the double-layered honeycomb curtain (curtain tail frame when fully lowered). The insulation board is placed between the double-layered honeycomb curtain to enhance insulation performance. The vertical limiting grooves are installed on the walls on both sides of the window opening to restrain the double-layered honeycomb curtain. The adjustable insulation and sunshade device has three working states: fully closed, partially retracted, and fully retracted. When fully closed, the lower curtain tail frame of the double-layered honeycomb curtain is bonded to the base plate, and both sides are placed in the vertical limiting grooves, forming multiple seals between the double-layered honeycomb curtain and the double-layered exterior windows. The air layer significantly improves insulation performance. For example, placing insulation boards inside the double-layer honeycomb curtains can further enhance insulation. In summer, when the adjustable insulation and shading device is fully closed, the building envelope's thermal insulation performance is greatly improved, and external shading is achieved when the outer windows are open. When the adjustable insulation and shading device is partially retracted, the lower curtain tail frame of the double-layer honeycomb curtain is positioned at part of the window height, ensuring a certain level of insulation and some natural lighting. When the adjustable insulation and shading device is fully retracted, the double-layer honeycomb curtain is pulled up to the bottom of the curtain box, ensuring a certain level of insulation and sufficient natural lighting.
[0005] Preferably, the curtain box is made of a material that is a poor conductor of heat, such as wood or plastic, and soft wool is laid at the contact point between the curtain box and the top of the double-layer honeycomb curtain.
[0006] Preferably, the lifting motor is driven by a built-in tubular motor.
[0007] Preferably, the fabric of the double-layer honeycomb curtain is made of double-sided silver-white fabric with heat-reflective properties.
[0008] Preferably, the curtain tail frame and base plate are made of materials that are poor conductors of heat, such as wood and plastic. The base plate is connected to the windowsill by bonding, anchor bolts, nails, etc. The curtain tail frame is embedded with several magnetic pieces, and the base plate at the corresponding position is embedded with several iron pieces.
[0009] Preferably, the insulation board is composed of several strip-shaped vacuum insulation boards or aerogel felts and other materials.
[0010] Preferably, the vertical limiting groove is made of a material that is a poor conductor of heat, such as wood or plastic, and has a cross-section of []. Soft fibers are laid in the groove where it contacts the double-layer honeycomb curtain. The vertical limiting groove is connected to the walls on both sides of the window opening by bonding, anchor bolts, nails, etc.
[0011] This utility model has the following beneficial effects:
[0012] 1) Double-glazed windows, double-layered honeycomb curtains, and insulation boards create multiple air layers, which can increase thermal resistance by 1.0–4.0 m. 2 With a heat insulation rating of ·K) / W, the thermal insulation performance is improved by 3-10 times compared to single-layer exterior windows.
[0013] 2) Double-layer honeycomb curtains use two parallel honeycomb curtain fabrics, requiring only one lifting motor. Insulation boards can also be placed between the two honeycomb curtain fabrics, which greatly improves the thermal insulation performance while saving materials and space.
[0014] 3) The adjustable heat insulation and shading device can be flexibly opened and closed as needed. It can be closed during the day to ensure lighting and ventilation, and closed at night to improve heat insulation performance, taking into account winter heat insulation, summer heat insulation and natural lighting during the day. Attached Figure Description
[0015] Figure 1 The exterior facade of a combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device for double-layer windows.
[0016] Figure 2 The interior facade of the combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device for double-layer windows.
[0017] Figure 3 This is a vertical cross-sectional view (section AA) of the double-layer honeycomb curtain with a centrally located heat-insulating and sun-shading adjustable double-layer window device when it is fully retracted.
[0018] Figure 4 This is a horizontal cross-sectional view (section I-I) of the double-layer honeycomb curtain with a centrally located heat-insulating and sun-shading adjustable double-layer window device when it is retracted.
[0019] Figure 5 This is a vertical cross-sectional view (BB section) of the double-layer honeycomb curtain section of the double-layer window centrally located heat-insulating and sun-shading adjustable device when it is retracted.
[0020] Figure 6 This is a vertical cross-sectional view (CC section) of the double-layer honeycomb curtain with a centrally located heat-insulating and sun-shading adjustable double-layer window device when it is fully closed.
[0021] Figure 7This is a horizontal cross-sectional view (section II-II) of a double-layer honeycomb curtain with a centrally located heat-insulating and sun-shading adjustable double-layer window device when it is fully closed.
[0022] Figure 8 This is a vertical cross-sectional view (DD section) of the double-layer honeycomb curtain with a double-layer window centrally located heat-insulating and sun-shading adjustable device, when it is fully closed and has an internal heat-insulating board.
[0023] Figure 9 This is an exterior view of the double-layer honeycomb curtain with the centrally located heat-insulating and sun-shading adjustable double-layer window device, when it is fully closed and the outer window is open.
[0024] Figure 10 This is a horizontal cross-sectional view (section III-III) of the double-layer honeycomb curtain with a double-layer window centrally located heat-insulating and sun-shading adjustable device, when it is fully closed and has an internal heat-insulating board.
[0025] In the diagram, 1-wall at the window opening; 2-external insulation system; 3-internal plaster layer; 4-outer window; 5-inner window; 6-external window subframe; 7-external window profile; 8-curtain box; 9-lifting motor; 10-double-layer honeycomb curtain; 11-curtain tail frame; 12-base strip; 13-insulation board; 14-vertical limiting groove. Detailed Implementation
[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0027] Implementation Example 1:
[0028] like Figures 1-10A combined enclosure structure with a double-layer window and an adjustable heat-insulating and sun-shading device, including a window opening. The outer side of the wall (1) at the window opening has an external heat-insulating system (2), and the inner side has an internal plaster layer (3). The window opening is equipped with a double-layer window, including an outer window (4) and an inner window (5). The outer window and the window opening are connected by a subframe (6) and an outer window profile (7). The adjustable heat-insulating and sun-shading device is installed between the outer window (4) and the inner window (5). The adjustable heat-insulating and sun-shading device includes a curtain box (8), a lifting motor (9), a double-layer honeycomb curtain (10), a curtain tail frame (11), a base plate (12), a heat-insulating board (13), and a vertical limiting groove (14). The curtain box (8) is made of solid wood and is fixed to the upper wall of the window opening with anchor bolts. The curtain box (8) is equipped with a lifting motor (9) driven by a tubular motor, and soft fur is laid at the contact point with the double-layer honeycomb curtain. The double-layer honeycomb curtain (10) consists of two honeycomb-shaped curtain fabrics in the vertical direction, and the curtain fabric is made of double-sided silver-white fabric. The upper end of the double-layer honeycomb curtain (10) is connected to a lifting motor (9), and the lower end is connected to a curtain tail frame (11) made of solid wood. Several magnetic pieces are embedded in the curtain tail frame (11). The base plate (12) is made of solid wood and is installed on the windowsill between the double windows at the bottom of the window opening. Several iron pieces are embedded in the base plate (12) at the positions corresponding to the magnetic pieces of the curtain tail frame (11). Before the double-layer honeycomb curtain (10) is lowered, an insulation board (13) can also be placed. Vertical limiting grooves (14) made of solid wood with a cross-section of [ are installed on the walls on both sides of the window opening to restrain the double-layer honeycomb curtain (10). Soft fibers are laid at the contact points between the grooves and the double-layer honeycomb curtain (10). The vertical limiting grooves (14) are connected to the walls on both sides of the window opening by anchor bolts.
[0029] Figure 1 , Figure 2 These are the exterior and interior facades of a combined enclosure structure with double-layered windows and a centrally located adjustable heat-insulating and sun-shading device, respectively. At this time, both the outer window (4) and the inner window (5) are closed. For example... Figure 3 , Figure 4 The lifting motor (9) completely retracts the double-layer honeycomb curtain (10) with adjustable heat insulation and sun shading device to the bottom of the curtain box (8). At this time, the closed outer window (4) and inner window (5) ensure a certain degree of heat insulation performance and sufficient natural lighting. Figure 5 The lifting motor (9) partially retracts the double-layer honeycomb curtain (10) of the adjustable heat-insulating and sun-shading device to a position at part of the window height. At this time, the closed outer window (4) and inner window (5) ensure a certain degree of heat insulation performance and some natural lighting. Figure 6 , Figure 7The double-layer honeycomb curtain (10) is completely closed, with both sides placed in the vertical limiting groove (14) in contact with the soft fur. The magnetic sheet in the lower curtain tail frame (11) of the double-layer honeycomb curtain (10) is bonded to the iron sheet of the base plate (12). Multiple air layers are formed between the double-layer honeycomb curtain (10) and the outer window (4) and the inner window (5), which greatly improves the thermal insulation performance. Figure 8 , 9 The double-layer honeycomb curtain (10) contains several vacuum insulation panels (13), which further enhances the thermal insulation performance. Figure 10 When the double-layer honeycomb curtain (10) is completely closed and the outer window (4) is open, the combined structure still has a certain thermal insulation performance. At this time, the double-layer honeycomb curtain (10) achieves the effect of external shading, which can greatly block solar radiation heat.
[0030] Implementation Example 2:
[0031] like Figures 1-10 A combined enclosure structure with a double-layer window and an adjustable heat-insulating and sun-shading device, including a window opening. The outer side of the wall (1) at the window opening has an external heat-insulating system (2), and the inner side has an internal plaster layer (3). The window opening is equipped with a double-layer window, including an outer window (4) and an inner window (5). The outer window and the window opening are connected by a subframe (6) and an outer window profile (7). The adjustable heat-insulating and sun-shading device is installed between the outer window (4) and the inner window (5). The adjustable heat-insulating and sun-shading device includes a curtain box (8), a lifting motor (9), a double-layer honeycomb curtain (10), a curtain tail frame (11), a base strip (12), a heat-insulating board (13), and a vertical limiting groove (14). The curtain box (8) is made of rigid polyurethane plastic and is fixed to the upper wall of the window opening with anchor bolts. The curtain box (8) is equipped with a lifting motor (9) driven by a tubular motor, and a soft fleece is laid at the contact point with the double-layer honeycomb curtain. The double-layer honeycomb curtain (10) consists of two honeycomb-shaped curtain fabrics in the vertical direction, and the curtain fabric is made of double-sided light yellow fabric. The upper end of the double-layer honeycomb curtain (10) is connected to a lifting motor (9), and the lower end is connected to a curtain tail frame (11) made of rigid polyurethane plastic. Several magnetic pieces are embedded in the curtain tail frame (11). The base plate (12) is made of solid wood and is installed on the windowsill between the double-layer windows at the bottom of the window opening. Several iron pieces are embedded in the base plate (12) at positions corresponding to the magnetic pieces of the curtain tail frame (11). Before the double-layer honeycomb curtain (10) is lowered, an insulation board (13) can also be placed. Vertical limiting grooves (14) made of rigid polyurethane plastic with a cross-section of [ are installed on the walls on both sides of the window opening to restrain the double-layer honeycomb curtain (10). Soft fibers are laid at the contact points between the grooves and the double-layer honeycomb curtain (10). The vertical limiting grooves (14) are connected to the walls on both sides of the window opening by nails.
[0032] Figure 1 , Figure 2These are the exterior and interior facades of a combined enclosure structure with double-layered windows and a centrally located adjustable heat-insulating and sun-shading device, respectively. At this time, both the outer window (4) and the inner window (5) are closed. For example... Figure 3 , Figure 4 The lifting motor (9) completely retracts the double-layer honeycomb curtain (10) with adjustable heat insulation and sun shading device to the bottom of the curtain box (8). At this time, the closed outer window (4) and inner window (5) ensure a certain degree of heat insulation performance and sufficient natural lighting. Figure 5 The lifting motor (9) partially retracts the double-layer honeycomb curtain (10) of the adjustable heat-insulating and sun-shading device to a position at part of the window height. At this time, the closed outer window (4) and inner window (5) ensure a certain degree of heat insulation performance and some natural lighting. Figure 6 , Figure 7 The double-layer honeycomb curtain (10) is completely closed, with both sides placed in the vertical limiting groove (14) in contact with the soft fur. The magnetic sheet in the lower curtain tail frame (11) of the double-layer honeycomb curtain (10) is bonded to the iron sheet of the base plate (12). Multiple air layers are formed between the double-layer honeycomb curtain (10) and the outer window (4) and the inner window (5), which greatly improves the thermal insulation performance. Figure 8 , 9 The double-layer honeycomb curtain (10) contains several aerogel felt insulation boards (13), which further enhances the thermal insulation performance. Figure 10 When the double-layer honeycomb curtain (10) is completely closed and the outer window (4) is open, the combined structure still has a certain thermal insulation performance. At this time, the double-layer honeycomb curtain (10) achieves the effect of external shading, which can greatly block solar radiation heat.
[0033] This combined enclosure structure has the following characteristics:
[0034] 1) The double-glazed windows and adjustable heat insulation and sun shading devices can be flexibly adjusted according to different application scenarios, and various combinations of double-glazed windows, double-layer honeycomb curtains and heat insulation boards can be made to meet the needs of different application scenarios, thus taking into account winter heat preservation, summer heat insulation and natural daylighting.
[0035] 2) The combined enclosure structure formed by double-glazed windows and adjustable heat insulation and shading devices includes multiple insulation bodies and multiple air layers, thereby greatly improving the heat insulation performance.
[0036] 3) Double-layer honeycomb curtains share a single lifting motor, saving materials and space.
[0037] 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 the above embodiments do not limit the scope of protection of this utility model in any way, and all technical solutions obtained by equivalent substitution or other means fall within the scope of protection of this utility model.
[0038] The parts not covered in this utility model are the same as or can be implemented using existing technologies.
Claims
1. A combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows; comprising window openings, characterized in that: The wall at the window opening (1) has an external insulation system (2) on the outside and an internal plaster layer (3) on the inside. The window opening is equipped with a double-layer window, including an outer window (4) and an inner window (5). The outer window is connected to the window opening by a subframe (6) and an outer window profile (7). The heat insulation and sun shading adjustable device is installed between the double-layer windows. The heat insulation and sun shading adjustable device includes a curtain box (8), a lifting motor (9), a double-layer honeycomb curtain (10), a curtain tail frame (11), a base plate (12), a heat insulation board (13), and a vertical limiting groove (14). The curtain box (8) is fixed to the upper wall of the window opening with anchor bolts, and a lifting motor (9) is installed in the curtain box (8). The double-layer honeycomb curtain (10) is composed of two curtain fabrics with honeycomb cross-section in the vertical direction. The upper end of the double-layer honeycomb curtain (10) is connected to the lifting motor (9), and the lower end is connected to the curtain tail frame (11). The base plate (12) is installed on the windowsill between the double windows at the bottom of the window opening to support the curtain tail frame (11) after the double honeycomb curtain (10) is fully lowered. The insulation board (13) is placed between the double-layer honeycomb curtains (10) to enhance the insulation performance; The vertical limiting groove (14) is installed on the walls on both sides of the window opening to restrain the double-layer honeycomb curtain (10).
2. The combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows according to claim 1, characterized in that: When the double-layer honeycomb curtain (10) is fully lowered, multiple air layers are formed between it and the insulation board, the outer window (4), and the inner window (5).
3. The combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows according to claim 1, characterized in that: The curtain box (8) is made of wood and plastic, and soft wool is laid at the top of the curtain box (8) and the double-layer honeycomb curtain (10).
4. The combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows according to claim 1, characterized in that: The lifting motor (9) is driven by a built-in tubular motor.
5. The combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows according to claim 1, characterized in that: The fabric of the double-layer honeycomb curtain (10) is made of double-sided silver-white fabric with heat reflection function.
6. The combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows according to claim 1, characterized in that: The curtain tail frame (11) and base plate (12) are made of wood and plastic; The base strip (12) is connected to the window sill by adhesive bonding or by anchor bolts and nails; Several magnetic pieces are embedded in the curtain tail frame (11), and several iron pieces are embedded in the base strip (12) at the corresponding position.
7. The combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows according to claim 1, characterized in that: The insulation board (13) is composed of several strip-shaped vacuum insulation boards or aerogel felts.
8. The combined enclosure structure with a centrally located adjustable heat-insulating and sun-shading device in double-layered windows according to claim 1, characterized in that: The vertical limiting groove (14) is made of wood or plastic and has a cross-section of [ ]. Soft fur is laid in the groove where it contacts the double-layer honeycomb curtain (10). The vertical limiting groove (14) is connected to the walls on both sides of the window opening by bonding or by anchor bolts or nails.