Hollow glass window with built-in double-layer window shade
By incorporating a three-layer cavity design with a double-layer blackout curtain inside the insulated glass window and an independent gear transmission device, the problems of space limitation and maintenance difficulties in traditional insulated built-in roller blind systems have been solved, enabling diversified blackout control and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SMARTSOLAR ENERGY TECH
- Filing Date
- 2025-03-12
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional hollow built-in roller blind systems cannot meet users' diverse shading needs due to space limitations, and are inconvenient to manufacture and maintain.
The three-layer cavity design of the drive equipment frame and the independent gear transmission device enable independent control of the double-layer curtain fabric. Combined with molecular sieve sealing and modular structure, production and maintenance are simplified.
The ability to operate two curtains independently within a limited space enhances the versatility of shading functions, improves sealing performance and production efficiency, and reduces maintenance costs.
Smart Images

Figure CN224120141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of insulated glass windows with built-in roller blinds, and particularly to an insulated glass window with built-in double-layer blackout curtains. Background Technology
[0002] In modern architecture, insulated glass is widely used due to its excellent thermal and sound insulation properties. To further enhance the functionality of insulated glass, built-in roller blinds are gradually becoming an emerging option. Traditional built-in roller blinds typically only allow one blind to be installed inside the insulated glass unit, which limits the diverse needs of users. For example, users may want to use semi-blackout roller blinds during the day to maintain soft indoor light, while requiring full blackout roller blinds at night to ensure privacy and a dark environment. However, due to the limited space inside the insulated glass unit, traditional designs can only choose one type of blind, failing to simultaneously meet the needs of different scenarios.
[0003] Furthermore, traditional insulated roller blinds present several technical challenges in their manufacturing process. For instance, the application of butyl rubber and the filling of molecular sieves during installation are complex, impacting production efficiency and the product's sealing performance. Damage to the roller blind also makes repair or replacement difficult, requiring the complete disassembly of the insulated glass unit, increasing maintenance costs.
[0004] Therefore, how to achieve independent operation of multiple roller blinds within the limited space of insulated glass, and simplify the production process, improve sealing performance, and facilitate maintenance and replacement, has become an urgent technical problem to be solved. Utility Model Content
[0005] The technical problem this invention aims to solve is that traditional hollow built-in roller blind systems cannot meet users' diverse shading needs due to space limitations, and are inconvenient to manufacture and maintain.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A double-glazed window with built-in double-layer blackout curtains, comprising:
[0008] The drive device frame is located at the top of the entire window, and its interior contains, from top to bottom, a drive device cavity, a first roll cavity, and a second roll cavity;
[0009] The gear transmission device includes a first gear transmission device and a second gear transmission device, and the two gear drive devices are respectively fixed on both sides of the drive device frame;
[0010] A first drum is disposed inside the first drum cavity, and one end of its drum is connected to the first gear transmission device.
[0011] The second drum is disposed inside the second drum cavity, and one end of it is connected to the second gear transmission device;
[0012] The drum drive device includes a first drum drive device and a second drum drive device, which are located at opposite ends of the drive equipment cavity, respectively. The first drum drive device is connected to the first gear transmission device and drives the first drum to rotate through gear linkage. The second drum drive device is connected to the second gear transmission device and drives the second drum to rotate through gear linkage.
[0013] The first curtain is wound around the first roll;
[0014] The second curtain is wound around the second roll;
[0015] The double-layer curtain frame is U-shaped and is connected to the bottom of the drive device frame. It has two U-shaped curtain grooves, namely the first curtain groove and the second curtain groove, which are used to store the two sides and the bottom edge of the first curtain and the second curtain, respectively.
[0016] The border is rectangular and fixed to the outer perimeter of the entire window.
[0017] The glass cover comprises two pieces, which respectively cover and are bonded to both sides of the partition frame.
[0018] A further preferred technical solution is that the drive device frame includes a frame body and a cover plate; the frame body has two partitions along its length, namely a first partition plate and a second partition plate; its inner cavity is divided from top to bottom into the drive device cavity, the first roll cavity and the second roll cavity; the upper part of the cover plate is provided with a sliding groove frame, and the top and bottom edges of the drive device cavity are inserted into the sliding groove frame and connected and fixed to the cover plate.
[0019] In a further optimized technical solution, the edge of the second partition is arc-shaped, and a gap is reserved between it and the cover plate to form a first curtain channel.
[0020] In a further optimized technical solution, an arc-shaped guide plate is provided on the lower part of the inner wall of the cover plate to guide the first curtain fabric into the first curtain fabric groove.
[0021] A further preferred technical solution is that the first gear transmission device includes a first gear housing; a first driving gear, a first transmission gear, and a first driven gear are arranged sequentially from top to bottom inside the first gear housing and mesh with each other; the first driving gear is installed at one end of the first drum drive device; and the first driven gear is installed at one end of the first drum.
[0022] A further preferred technical solution is that the second gear transmission device includes a second gear housing; inside the second gear housing, a second driving gear, three second transmission gears, and a second driven gear are arranged sequentially from top to bottom and mesh with each other; the second driving gear is installed at one end of the second drum drive device; and the second driven gear is installed at one end of the second drum.
[0023] Further optimizing the technical solution, the first drum drive device includes: a first geared motor and a first motor limiter.
[0024] Further optimizing the technical solution, the second drum drive device includes: a second geared motor and a second motor limiter.
[0025] Further optimizing the technical solution, the partition frame is formed by connecting four aluminum alloy strips end to end with right-angle corner connectors. The aluminum alloy strips are hollow inside and filled with molecular sieves.
[0026] The beneficial effects of this utility model are:
[0027] This utility model significantly improves the functionality and reliability of insulated windows through the following innovative structural design:
[0028] 1. Independent control of double curtains and space optimization
[0029] Based on the three-layer cavity design of the drive device frame (drive device cavity, first roller cavity, and second roller cavity) and the partition structure, a double roller blind system is vertically stacked within a limited hollow layer. With the embedded sealing of the cover plate sliding frame, the lateral space occupancy is reduced by 30%. Users can operate the half-blackout curtain and the full-blackout curtain separately through an independent gear transmission device to meet the needs of switching between day and night scenarios.
[0030] 2. Improved transmission accuracy and stability
[0031] The dual-sided independent gear transmission device (three-stage meshing in the first gear housing and dual transmission gears in the second gear housing) combined with the geared motor controls the deviation of the curtain lifting speed within ±5%, and the motor limiter ensures that the curtain stopping error is ≤1mm, completely solving the problem of curtain misalignment caused by traditional single motor drive.
[0032] 3. Enhanced sealing and durability
[0033] The interior of the partition frame is filled with 3A molecular sieve, which selectively adsorbs water molecules to keep the humidity of the hollow layer stable below 0.5%RH. Combined with the double seal of butyl rubber and silicone rubber on the drive equipment frame (water vapor permeability ≤0.01g / (m²·d)), no condensation is observed after high and low temperature cycling tests from -40℃ to 80℃. The corrosion rate of the aluminum spacer is reduced by 70%, and the service life is extended to 15 years.
[0034] 4. Optimize production and maintenance efficiency
[0035] The sliding groove insertion structure and U-shaped curtain groove design of the drive equipment frame allow the roller shutter module to be assembled independently, improving production line efficiency by 40%; during maintenance, only a partial cover plate needs to be removed, reducing material waste by 90% compared to traditional solutions.
[0036] 5. Ensuring smooth operation of the curtain fabric
[0037] The curved guide plate and the curved channel of the second partition plate optimize the bending angle of the curtain from 90° to 30°. Combined with the low-friction coating on the surface of the nylon curtain, the resistance to winding and unfolding is reduced by 60%, and no wear or breakage has been observed after 100,000 cycles of testing.
[0038] in conclusion This invention achieves independent control of double curtains within a limited space of insulating glass through spatial layering layout, independent transmission system, molecular sieve sealing optimization, and modular structure design. It also overcomes industry pain points such as complex production, difficult maintenance, and short lifespan, and its comprehensive performance indicators are significantly better than similar products. Attached Figure Description
[0039] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0040] Figure 2 This is a structural schematic diagram of the drive device frame;
[0041] Figure 3 This is a structural schematic diagram of the cover plate;
[0042] Figure 4 This is a schematic diagram of a double-layer curtain frame;
[0043] Figure 5 This is a schematic diagram of the structure of the first gear transmission device;
[0044] Figure 6 This is a schematic diagram of the second gear transmission device.
[0045] In the diagram: 100 - Drive device frame, 200 - Gear transmission device, 310 - First drum, 320 - Second drum, 400 - Drum drive device, 510 - First curtain fabric, 520 - Second curtain fabric, 600 - Double-layer curtain frame, 700 - Partition frame, 110 - Frame body, 120 - Cover plate, 111 - First partition plate, 112 - Second partition, 101-Drive device cavity, 102-First drum cavity, 103-Second drum cavity, 121-Slide frame, 122-Arc guide plate, 610-First curtain groove, 620-Second curtain groove, 210-First gear transmission device, 220-Second gear transmission device, 211-First gear housing, 212-First driving gear, 213-First transmission gear, 214-First driven gear, 221-Second gear housing, 222-Second driving gear, 223-Second transmission gear, 224-Second driven gear, 410-First drum drive device, 420-Second drum drive device, 411-First geared motor, 412-First motor limiter, 421-Second geared motor, 422-Second motor limiter. Detailed Implementation
[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0047] Combination Figure 1 As shown, this embodiment provides a double-glazed window with built-in double-layer blackout curtains, including a drive device frame 100, a gear transmission device 200, a first roller 310, a second roller 320, a roller drive device 400, a first curtain 510, a second curtain 520, a double-layer curtain frame 600, a partition frame 700, and a glass cover plate.
[0048] The 700-inch partition frame is composed of four aluminum alloy spacers filled with molecular sieves, spliced together by right-angle corner connectors, with a molecular sieve filling rate of 85%. The molecular sieves keep the humidity of the hollow layer ≤0.5%RH, and with the double sealing of butyl rubber and silicone sealant, the water vapor permeability is ≤0.01g / (m²·d).
[0049] like Figure 2As shown, the drive device frame 100 is located at the top of the window and is made of aluminum alloy profile. It includes a frame 110 and a cover plate 120. Two partitions are arranged along the length direction inside the frame 110: a first partition 111 and a second partition 112, dividing the interior into a drive device cavity 101, a first roller cavity 102, and a second roller cavity 103. The three-layer vertical cavity design realizes the superposition of double roller blinds within a limited space.
[0050] like Figure 3 As shown, a sliding frame 121 is provided on the upper part of the cover plate 120, and the top and bottom edges of the drive device cavity 101 are inserted into the sliding frame 121. The embedded connection of the sliding frame reduces the lateral space occupied by 30%.
[0051] The edge of the second partition 112 is curved, forming a first curtain channel with the cover plate 120. An arc-shaped guide plate 122 is provided on the lower part of the inner wall of the cover plate 120 to guide the first curtain 510 into the first curtain groove 610 of the double-layer curtain frame 600. The arc-shaped guide plate 122 optimizes the curtain bending angle to 30°, reducing frictional resistance by 60%.
[0052] like Figure 4 As shown, the double-layer curtain frame 600 is a U-shaped aluminum alloy profile, which has a first curtain groove 610 and a second curtain groove 620, which are used to store the first curtain 510 and the second curtain 520 respectively.
[0053] The gear transmission device 200 includes a first gear transmission device 210 and a second gear transmission device 220 arranged symmetrically.
[0054] like Figure 5 As shown, the first gear transmission device 210 includes a first gear housing 211, in which a first driving gear 212, a first transmission gear 213 and a first driven gear 214 are sequentially assembled, forming a three-stage reduction structure.
[0055] like Figure 6 As shown, the second gear housing 221 of the second gear transmission device 220 is equipped with a second driving gear 222, three second transmission gears 223 and a second driven gear 224, forming a two-stage speed-increasing transmission chain.
[0056] The drum drive device 400 includes a first drum drive device 410 and a second drum drive device 420.
[0057] The first drum drive device 410 includes: a first geared motor 411 and a first motor limiter 412; used to drive the first gear transmission device 210.
[0058] The second drum drive device 420 includes: a second reduction motor 421 and a second motor limiter 422; used to drive the second gear transmission device 220.
[0059] The geared motor, in conjunction with the limit switch, enables precise start-stop control, avoiding interference from the double curtain fabric.
[0060] Both the first geared motor 411 and the second geared motor 421 are DC geared motors.
[0061] The working principle is as follows:
[0062] When the user sends a command via remote control, the first roller drive device 410 drives the first roller 310 to rotate via the first gear transmission device 210, and the first curtain 510 enters the first curtain groove 610 from the first roller cavity 102 through the first curtain channel and the arc-shaped guide plate 122, thereby realizing the unfolding of the semi-blackout curtain.
[0063] The second roller drive device 420 independently drives the second roller 320 to rotate in the opposite direction, and the second curtain 520 directly enters the second curtain groove 620 from the second roller cavity 103, completing the unfolding of the blackout curtain. The two sets of transmission devices are completely physically isolated through the gear housing to avoid magnetic interference. When maintenance is required, the cover plate 120 can be removed separately to replace any roller without damaging the sealing structure of the insulating glass.
[0064] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A double-glazed window with built-in double-layer blackout curtains, characterized in that, include: The drive device frame is located at the top of the entire window, and its interior contains, from top to bottom, a drive device cavity, a first roll cavity, and a second roll cavity; The gear transmission device includes a first gear transmission device and a second gear transmission device, and the two gear drive devices are respectively fixed on both sides of the drive device frame; A first drum is disposed inside the first drum cavity, and one end of its drum is connected to the first gear transmission device. The second drum is disposed inside the second drum cavity, and one end of it is connected to the second gear transmission device; The drum drive device includes a first drum drive device and a second drum drive device, which are located at opposite ends of the drive equipment cavity, respectively. The first drum drive device is connected to the first gear transmission device and drives the first drum to rotate through gear linkage. The second drum drive device is connected to the second gear transmission device and drives the second drum to rotate through gear linkage. The first curtain is wound around the first roll; The second curtain is wound around the second roll; The double-layer curtain frame is U-shaped and is connected to the bottom of the drive device frame. It has two U-shaped curtain grooves, namely the first curtain groove and the second curtain groove, which are used to store the first curtain and the second curtain respectively. The border is rectangular and fixed to the outer perimeter of the entire window. The glass cover comprises two pieces, which respectively cover and are bonded to both sides of the partition frame.
2. A double-glazed window with a built-in double-layer blackout curtain as described in claim 1, characterized in that, The drive device frame includes a frame and a cover plate; the frame has two partitions along its length, namely a first partition and a second partition; its inner cavity is divided from top to bottom into the drive device cavity, the first roll cavity and the second roll cavity; the upper part of the cover plate is provided with a sliding frame, and the top and bottom edges of the drive device cavity are inserted into the sliding frame and connected and fixed to the cover plate.
3. A double-glazed window with a built-in double-layer blackout curtain as described in claim 2, characterized in that, The edge of the second partition is curved, and a gap is reserved between it and the cover plate to form the first curtain channel.
4. A double-glazed window with a built-in double-layer blackout curtain as described in claim 2, characterized in that, The lower part of the inner wall of the cover plate is provided with an arc-shaped guide plate for guiding the first curtain fabric into the first curtain fabric groove.
5. A double-glazed window with a built-in double-layer blackout curtain as described in claim 1, characterized in that, The first gear transmission device includes a first gear housing; inside the first gear housing, a first driving gear, a first transmission gear, and a first driven gear are arranged sequentially from top to bottom and mesh with each other; the first driving gear is installed at one end of the first drum drive device; the first driven gear is installed at one end of the first drum.
6. A double-glazed window with a built-in double-layer blackout curtain as described in claim 1, characterized in that, The second gear transmission device includes a second gear housing; inside the second gear housing, a second driving gear, three second transmission gears, and a second driven gear are arranged sequentially from top to bottom and mesh with each other; the second driving gear is installed at one end of the second drum drive device; the second driven gear is installed at one end of the second drum.
7. A double-glazed window with a built-in double-layer blackout curtain as described in claim 1, characterized in that, The first drum drive device includes: a first geared motor and a first motor limiter.
8. A double-glazed window with a built-in double-layer blackout curtain as described in claim 1, characterized in that, The second drum drive device includes: a second geared motor and a second motor limiter.
9. A double-glazed window with a built-in double-layer blackout curtain as described in claim 1, characterized in that, The partition frame is formed by connecting four aluminum alloy strips end to end with right-angle corner connectors. The aluminum alloy strips are hollow inside and filled with molecular sieves.