Large-span multi-curvature electric bent steel glass window synchronously controlled by transverse shutters

Abstract

The utility model discloses a large-span multi-curvature electric bent steel glass window synchronously controlled by transverse shutters, which adopts a multi-directional synchronous compensation coupler to construct a sectional type synchronous transmission chain and solves the problem of transmission out-of-step of a traditional system under a complex curved surface. The window body structure comprises a window body frame assembly, a bent tempered glass panel, a transverse venetian blind set and a driving mechanism. The transverse venetian blind set comprises a plurality of transverse venetian blind mechanisms, all the mechanisms are transversely and horizontally arranged along the arc-shaped glass cavity, and the adjacent mechanisms are connected in a segmented mode through couplers to form a synchronous transmission chain. The full-window shutter angle is accurately regulated and controlled through a synchronous transmission chain, and the full-window shutter angle adjusting device is particularly suitable for large-span curved-surface buildings such as airport terminals and stadiums and has the advantages of being high in sunshade efficiency, high in structural stability, good in installation adaptability and the like.

Description

Technical Field

[0001] This utility model relates to the field of hollow louvered glass window technology, and in particular to an electric curved steel glass window with synchronous control of large-span, multi-curvature horizontal louvers. Background Technology

[0002] The traditional horizontal louver synchronous control system for curved steel windows suffers from the following technical bottlenecks, which urgently require breakthroughs through innovative design:

[0003] 1. Synchronization defects in large-span windows

[0004] When the horizontal width of the window exceeds 2 meters or the number of curtains exceeds 10 sets, the traditional coupling causes the lifting deviation of the first and last curtains to exceed ±5mm and the flipping angle error to exceed ±3° due to the cumulative error of the transmission chain. Existing technologies alleviate the friction problem by optimizing the slide rail material or adding lubrication components, but they do not solve the problem of synchronicity degradation caused by torque attenuation at the end of the large-span transmission chain.

[0005] For example, actual measurements show that the lifting error of the end curtain in a 3-meter-wide window can reach ±6.5mm, and the flipping angle error can expand to ±4.8°, which seriously affects the stability of the shading system of high-rise buildings.

[0006] 2. Insufficient adaptability to high curvature

[0007] When the window curvature radius R < 1000 mm, the angle compensation capability of traditional couplings (usually only ±5°) is insufficient, resulting in uneven torque transmission and further widening the synchronization error to ±8°. In addition, the mismatch between the curtain spacing and curvature can easily cause frictional interference between the curtain and the curved glass cavity wall, with a measured frictional interference rate as high as 15%, accelerating the wear of transmission components.

[0008] While existing solutions improve synchronization through segmented couplings, their lack of standardized design necessitates the customization of curved louvers and specialized transmission components, resulting in an increase in production costs of over 40%.

[0009] 3. Lack of dynamic compensation and control mechanisms

[0010] Traditional electric louvers rely on static gear ratio transmission, which cannot dynamically adjust transmission parameters according to the curvature of the window, resulting in insufficient compensation for linear velocity differences. For example, when the radius of curvature R=750mm, the linear velocity deviation of the traditional coupling reaches 12%, and the synchronization error increases exponentially with the number of runs.

[0011] Meanwhile, traditional closed-loop control systems rely on periodic reset operations, which consume additional time and power, and the synchronization error still cannot be effectively converged after the reset.

[0012] 4. Durability and maintenance cost issues

[0013] In existing solutions, transmission components such as lifting ropes and gears are prone to fatigue fracture due to long-term alternating stress. Experimental data shows that after 100,000 continuous cycles, the transmission efficiency of traditional couplings drops below 80%, the synchronization error expands to ±12mm, and the maintenance frequency increases threefold.

[0014] Therefore, there is an urgent need for an innovative solution that combines dynamic compensation, high curvature adaptation, and low-cost mass production. Utility Model Content

[0015] To address the technical problems existing in the prior art, the purpose of this utility model is to propose an electric curved steel glass window with synchronous control of large-span multi-curvature horizontal louvers. By adjusting the dynamic gear ratio of the multi-directional synchronous compensation coupling, the ±20° angle compensation of the perforated coupling plate, and the optimized design of the curtain spacing, the technical problem of poor synchronization of the lifting and turning of the horizontal louver curtains when the window width exceeds 2 meters or the curvature radius is less than 1000 mm is solved.

[0016] The technical solution adopted by this utility model to solve its technical problem is:

[0017] A motorized curved steel-glass window with synchronous control of large-span, multi-curvature horizontal louvers, characterized in that it comprises:

[0018] The form frame assembly consists of an arc-shaped top border, an arc-shaped bottom border, and straight side borders connected by corner connectors to form a closed ring frame with a curvature radius R of 500-5000mm.

[0019] The curved steel glass panel is bonded to the front and back of the window frame assembly with structural adhesive to form a hollow arc-shaped glass cavity;

[0020] The horizontal venetian blind assembly includes several horizontal venetian blind mechanisms. Each mechanism is arranged horizontally along the arc-shaped glass cavity. Adjacent horizontal venetian blind mechanisms are connected in segments by a multi-directional synchronous compensation coupling to form a synchronous transmission chain.

[0021] The horizontal Venetian blind mechanism includes Venetian blinds, Venetian blind pivots, and several winding drums; the winding drums are equidistantly installed on the Venetian blind pivots, and the drive ropes of the Venetian blinds are wound around the winding drums.

[0022] The drive mechanism includes a geared motor and a motor limiter. The geared motor is connected to the venetian blind shaft of the first set of horizontal venetian blind mechanisms to drive the first set of horizontal venetian blind mechanisms.

[0023] Multi-directional synchronous compensation couplings include:

[0024] Two symmetrical split housings, with an input shaft and an output shaft symmetrically installed inside the two housings via ball bearings; the input shaft and the output shaft are respectively connected to the venetian blind pivots of two adjacent transverse venetian blind mechanisms;

[0025] The input bevel drive gear meshes with the input bevel driven gear to form the first stage of transmission, and the input bevel drive gear is fixedly connected to one end of the input shaft cylinder;

[0026] The output bevel drive gear meshes with the output bevel driven gear to form the third stage of transmission, and the output bevel driven gear is fixedly connected to one end of the output shaft cylinder;

[0027] The spur gear driving gear and the spur gear driven gear mesh to form the second stage of transmission. The spur gear driving gear and the input bevel driven gear are coaxially fixed to the driving shaft, and the spur gear driven gear and the output bevel driving gear are coaxially fixed to the driven shaft. The driving shaft and the driven shaft are respectively fixed inside the housings of the two split housings.

[0028] A perforated coupling plate connects the active shaft and the passive shaft. Its shaft hole allows for ±20° angular deviation compensation between the two shafts. An elastic damping material layer is provided at the edge of the shaft hole.

[0029] The ratio of the number of teeth of the spur gear driving gear to the number of teeth of the spur gear driven gear is dynamically adjusted according to the curvature radius R of the window to compensate for the difference in transmission linear velocity.

[0030] In a further optimized technical solution, the split housing is U-shaped, with housing shaft holes symmetrically opened on its two arms and a power shaft hole on its bottom surface. The input shaft cylinder and the output shaft cylinder are respectively installed in the power shaft holes of the two split housings, and the active rotating shaft and the passive rotating shaft are respectively installed in the housing shaft holes of the two split housings through angular contact ball bearings.

[0031] Further optimization of the technical solution involves using silicone or polyurethane material for the elastic damping layer, with a thickness of 2-5mm and a Shore hardness of 50A-70A.

[0032] Further optimization of the technical solution involves controlling the pitch circle diameter tolerance of the spur gear and the spur gear to IT6 level accuracy, and nitriding treatment of the tooth surface to achieve a surface hardness ≥ HV800.

[0033] In a further preferred embodiment, the tooth ratio of the spur gear driving gear to the spur gear driven gear is 1:[ 0.5 ], where R is in mm and the tooth ratio ranges from 1:1.02 to 1.15.

[0034] Further optimization of the technical solution ensures that the spacing L between adjacent horizontal venetian blind mechanisms satisfies:

[0035] When R < 1000 mm, ;

[0036] When R≥1000mm, .

[0037] Further optimizing the technical solution, when the window curvature radius R < 800mm, the spacing L between adjacent horizontal venetian blind mechanisms is further reduced to... .

[0038] In a further optimized technical solution, the drive mechanism also includes a Hall sensor and a main control module. The Hall sensor monitors the rotation angle of the blade shaft in real time, and the main control module dynamically adjusts the motor speed according to the feedback signal, so that the error of the first and last curtain flipping angle is ≤ ±0.4°.

[0039] Further optimizing the technical solution, when the window width W ≥ 3 meters, the number of segmented connections of the multi-directional synchronous compensation coupling is: Furthermore, the coaxiality error between the input and output shafts of each coupling segment is ≤0.05mm.

[0040] Further optimization of the technical solution: the arc-shaped top frame includes a frame and a cover plate, and the two are connected by a slot, which facilitates disassembly and maintenance later.

[0041] The beneficial effects of this utility model are:

[0042] 1. Significantly improved synchronization across large spans

[0043] Dynamic gear ratio adjustment: The difference in linear velocity caused by the curvature of the window is compensated by dynamically adjusting the gear ratio between the spur gear driving gear and the driven gear (1:1.02~1.15). For example, when the radius of curvature R=750mm, the gear ratio is set to 1:1.08, and the lifting error of the first and last curtains is reduced from ±7.2mm to ±0.7mm, a reduction of 87.7%.

[0044] Segmented coupling design: When the window width is ≥3 meters, the number of coupling segments is ⌈W / 1000⌉, and the coaxiality error of each input / output shaft is ≤0.05mm, suppressing the cumulative error of the transmission chain. The measured synchronous error of the lifting of a 3-meter window is ≤±0.8mm, which is 8 times better than the traditional solution.

[0045] 2. Breakthrough in high curvature adaptability and stability

[0046] ±20° Angle Compensation for Perforated Coupling Plate: A silicone elastic damping layer is set at the edge of the shaft hole of the perforated coupling plate, allowing ±20° angle compensation between the active and passive shafts, solving the problem of uneven torque transmission when R<800mm. In actual measurements with a curvature radius R=750mm, the flip angle error decreased from ±5.5° to ±0.3°, significantly improving synchronization stability.

[0047] Dynamic density adjustment of curtain spacing: When R < 1000mm, the spacing between adjacent curtains... When R≥1000mm, To prevent frictional interference between the curtain and the curved glass cavity wall. Comparative experiments show that the frictional interference rate decreased from 18% to 2.1%, extending the lifespan of the transmission components.

[0048] 3. Modular design and production cost optimization

[0049] Split-type housing: The U-shaped symmetrical housing can be detachably connected via snap-fit, adapting to windows with different curvatures and reducing customization needs. Standardized components reduce production costs by 42% and installation and maintenance time by 60%.

[0050] Nitrided gears and ball bearings: The spur gear teeth are nitrided (surface hardness HV≥800), and ball bearings are installed at the coupling sections. After 100,000 continuous operations, the transmission efficiency remains at 96.8%, and the wear is minimal.

[0051] 4. Improved control precision and reliability

[0052] Hall sensor closed-loop control: The Hall sensor monitors the angle of the Venetian blind shaft in real time, and the main control module dynamically adjusts the motor speed. The full window flip angle error is ≤ ±0.4°, which improves the efficiency of the periodic reset operation by 25% compared with the traditional solution. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the window frame structure of this utility model.

[0054] Figure 2 This is a schematic diagram of the connection between adjacent horizontal venetian blind mechanisms.

[0055] Figure 3 This is a schematic diagram of a multi-directional synchronous compensation coupling.

[0056] In the diagram: 100-Window frame assembly, 110-Curved top frame, 110a-Frame, 110b-Cover plate, 120-Curved bottom frame, 130-Straight side frames, 140-Corner connector, 200-Curved steel glass panel, 300-Horizontal Venetian blind assembly, 310-Horizontal Venetian blind mechanism, 310a-Venetian blind, 310b-Venetian blind pivot, 310c-Winding spool, 400-Drive mechanism, 500-Multi-directional synchronous compensation coupling Device, 510a-split housing, 510b-split housing, 520a-input shaft cylinder, 520b-output shaft cylinder, 530a-input bevel drive gear, 530b-input bevel driven gear, 540a-spur drive gear, 540b-spur driven gear, 550a-drive shaft, 550b-driven shaft, 560a-output bevel drive gear, 560b-output bevel driven gear, 570-perforated coupling plate. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings.

[0058] Example 1: Large span window (W=3200mm, radius of curvature R=1500mm)

[0059] The specific implementation structure of this utility model includes: a window frame assembly 100, a curved steel glass panel 200, a horizontal venetian blind assembly 300, a drive mechanism 400, and a multi-directional synchronous compensation coupling 500. The specific structures of each part are as follows:

[0060] like Figure 1 As shown, the window frame assembly 100 includes a closed ring frame formed by an arc-shaped top frame 110, an arc-shaped bottom frame 120, and straight side frames 130 connected by corner connectors 140, with a curvature radius R of 1500mm; it is made of 6063-T5 aluminum alloy profile.

[0061] The curved top frame 110 includes a frame 110a and a cover plate 110b, which are connected by a slot for easy disassembly and maintenance later.

[0062] The curved steel glass panel 200 is bonded to the front and back of the window frame assembly 100 with structural adhesive to form a hollow arc-shaped glass cavity, and the horizontal venetian blind assembly 300 is placed in the arc-shaped glass cavity.

[0063] like Figure 2 As shown, the horizontal venetian blind assembly 300 includes several horizontal venetian blind mechanisms 310. Each mechanism is arranged horizontally along the arc-shaped glass cavity. Adjacent mechanisms are connected in segments through a multi-directional synchronous compensation coupling 500 to form a synchronous transmission chain.

[0064] The spacing L of the horizontal venetian blind mechanism 310 is 60mm (when ≥1000mm, );

[0065] The horizontal Venetian blind mechanism 310 includes a Venetian blind 310a, a Venetian blind pivot 310b, and several winding drums 310c; the winding drums 310c are equidistantly installed on the Venetian blind pivot 310b, and the drive rope of the Venetian blind 310a is wound on the winding drums 310c.

[0066] The drive mechanism 400 includes a geared motor (rated torque 5 N·m), a motor limiter, a Hall sensor, and a main control module. The geared motor is connected to the venetian blind shaft 310b of the first set of horizontal venetian blind mechanisms 310 via a flange coupling, driving the first set of horizontal venetian blind mechanisms 310. The Hall sensor monitors the rotation angle of the venetian blind shaft 310b in real time, and the main control module adjusts the motor speed according to the feedback signal, with a closed-loop control accuracy of ±0.1°.

[0067] like Figure 3 As shown, the multi-directional synchronous compensation coupling 500 includes:

[0068] Two symmetrical split housings 510a and 510b are provided, and an input shaft cylinder 520a and an output shaft cylinder 520b are symmetrically installed in the two housings 510a and 510b via ball bearings; the input shaft cylinder 520a and the output shaft cylinder 520b are respectively connected to the venetian blind shaft 310b of two adjacent transverse venetian blind mechanisms 310.

[0069] The input bevel drive gear 530a and the input bevel driven gear 530b mesh to form the first stage of transmission. The input bevel drive gear 530a is fixedly connected to one end of the input shaft cylinder 520a. The input bevel drive gear 530a and the input bevel driven gear 530b have a module of 1.5 and mesh orthogonally (with an included angle of 90° between their axes), transmitting power to the spur drive gear 540a.

[0070] The spur gear 540a and the spur gear 540b mesh to form the second stage of transmission. The spur gear 540a and the input bevel gear 530b are coaxially fixed to the drive shaft 550a, and the spur gear 540b and the output bevel gear 560a are coaxially fixed to the drive shaft 550b. The drive shaft 550a and the drive shaft 550b are respectively fixed inside the housings of two split housings 510a and 510b.

[0071] The gear ratio of the spur drive gear 540a to the spur driven gear 540b is 1:1.06 (according to formula 1: [ 0.5 ]Calculation, where R is in mm), tooth tip circle diameter tolerance IT6 grade, tooth surface nitriding treatment (surface hardness HV800);

[0072] The output bevel drive gear 560a meshes with the output bevel driven gear 560b to form the third stage of transmission, and the output bevel driven gear 560b is fixedly connected to one end of the output shaft cylinder 520b;

[0073] The perforated coupling plate 570 connects the active shaft 550a and the passive shaft 550b. Its shaft hole allows for ±15° angle compensation between the active shaft 561 and the passive shaft 562. A thick silicone elastic damping layer with a Shore hardness of 60A is provided at the edge of the shaft hole.

[0074] The multi-directional synchronous compensation coupling has 4 segments (⌈3200 / 1000⌉=4), and the coaxiality error of the input / output shaft of each segment is ≤0.05mm.

[0075] The experimental comparison data are as follows:

[0076]

[0077] Example 2: High curvature window (W=2500mm, radius of curvature R=750mm)

[0078] The specific implementation structure of this embodiment differs from that of Embodiment 1 in the following ways:

[0079] Curtain spacing is increased: the spacing between adjacent curtains is L=25mm (R / 30=25mm), and the distance between the Venetian blind 310a and the glass cavity wall after unfolding is ≤2mm;

[0080] Reinforced coupling design: The 570° angle compensation of the perforated coupling plate is extended to ±18°, and the thickness of the elastic damping layer is increased to 5mm (polyurethane material, Shore hardness 70A); the gear ratio of the spur drive gear 540a to the spur driven gear 540b is 1:1.08, the module is 2.0, and the torque capacity is increased to 30N·m;

[0081] Needle roller bearings: Needle roller bearings (model NK17 / 16) are added at the joint section, which can withstand radial loads of 12kN and have a transmission efficiency of ≥98%.

[0082] The multi-directional synchronous compensation coupling has 3 segments (⌈2500 / 1000⌉=3), and the coaxiality error of the input / output shaft of each segment is ≤0.05mm.

[0083] The experimental comparison data are as follows:

[0084]

[0085] The working principle is as follows:

[0086] (a) Power transmission and compensation:

[0087] The geared motor drives the first-end Venetian blind shaft 310b, and the power is transmitted to the curtain body of the end transverse Venetian blind mechanism 310 through the segmented transmission chain of the multi-directional synchronous compensation coupling 500.

[0088] The input bevel drive gear 530a and the input bevel driven gear 530b mesh orthogonally to achieve 90° power steering; the spur drive gear 540a and the spur driven gear 540b compensate for the difference in linear velocity caused by curvature through dynamic gear ratio.

[0089] The elastic damping layer of the perforated coupling plate 570 absorbs high-frequency vibrations and allows for ±15°~±20° angular deviation compensation between the shafts.

[0090] (ii) Closed-loop control:

[0091] The Hall sensor collects the 310b angle data of the Venetian blind shaft every 0.1 seconds, and the main control module dynamically adjusts the motor speed to ensure that the synchronization error of the entire window Venetian blind is ≤±0.4°;

[0092] The motor limit switch precisely controls the lifting height based on the preset number of pulses (error ≤ ±0.8mm).

[0093] 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.

[0094] 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 alterations 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 large span multi-curvature transverse louver synchronous control electrically bent steel glass window, characterized in that, include: The form frame component consists of an arc-shaped top border, an arc-shaped bottom border, and straight side borders connected by corner connectors to form a closed ring frame. The curved steel glass panel is bonded to the front and back of the window frame assembly with structural adhesive to form a hollow arc-shaped glass cavity; The horizontal venetian blind assembly includes several horizontal venetian blind mechanisms. Each mechanism is arranged horizontally along the arc-shaped glass cavity. Adjacent horizontal venetian blind mechanisms are connected in segments by a multi-directional synchronous compensation coupling to form a synchronous transmission chain. The horizontal Venetian blind mechanism includes Venetian blinds, Venetian blind pivots, and several winding drums; the winding drums are equidistantly installed on the Venetian blind pivots, and the drive ropes of the Venetian blinds are wound around the winding drums. The drive mechanism includes a geared motor and a motor limiter. The geared motor is connected to the venetian blind shaft of the first set of horizontal venetian blind mechanisms to drive the first set of horizontal venetian blind mechanisms. Multi-directional synchronous compensation couplings include: Two symmetrical split housings, with an input shaft and an output shaft symmetrically installed inside the two housings via ball bearings; the input shaft and the output shaft are respectively connected to the venetian blind pivots of two adjacent transverse venetian blind mechanisms; The input bevel drive gear meshes with the input bevel driven gear to form the first stage of transmission, and the input bevel drive gear is fixedly connected to one end of the input shaft cylinder; The output bevel drive gear meshes with the output bevel driven gear to form the third stage of transmission, and the output bevel driven gear is fixedly connected to one end of the output shaft cylinder; The spur gear driving gear and the spur gear driven gear mesh to form the second stage of transmission. The spur gear driving gear and the input bevel driven gear are coaxially fixed to the driving shaft, and the spur gear driven gear and the output bevel driving gear are coaxially fixed to the driven shaft. The driving shaft and the driven shaft are respectively fixed inside the housings of the two split housings. A perforated coupling plate connects the active shaft and the passive shaft. Its shaft hole allows for ±20° angular deviation compensation between the two shafts. An elastic damping material layer is provided at the edge of the shaft hole. The ratio of the number of teeth of the spur gear driving gear to the number of teeth of the spur gear driven gear is dynamically adjusted according to the curvature radius R of the window to compensate for the difference in transmission linear velocity.

2. A large span multi-curvature transverse louver synchronous controlled electrically bent steel glazing unit as claimed in claim 1, wherein, The split housing is U-shaped, with housing shaft holes symmetrically opened on its two arms and a power shaft hole on its bottom surface. The input shaft cylinder and the output shaft cylinder are respectively installed in the power shaft holes of the two split housings. The active rotating shaft and the passive rotating shaft are respectively installed in the housing shaft holes of the two split housings through angular contact ball bearings.

3. A large span multi-curvature transverse louver synchronous controlled electrically bent steel glazing unit as claimed in claim 1, wherein, The elastic damping material layer is made of silicone or polyurethane.

4. A large span multi-curvature transverse louver synchronous controlled electrically bent steel glazing unit as claimed in claim 1, wherein, The tooth ratio of the spur gear driving gear to the spur gear driven gear is 1:[ 0.5 The unit of the window curvature radius R is mm, and the tooth ratio ranges from 1:1.02 to 1.

15.

5. A large span multi-curvature transverse louver synchronous controlled electrically bent steel glazing unit as claimed in claim 1, wherein, The distance L of the adjacent transverse louver curtain mechanism satisfies: when the curvature radius R of the window body is less than 1000mm, ; When the radius of curvature of the window R≥1000mm, .

6. A large span multi-curvature transverse louver synchronous controlled electrically operated bending steel glazing unit as claimed in claim 5, wherein, When the curvature radius R of the window is less than 800 mm, the distance L between the adjacent transverse shutter mechanisms is further reduced to .

7. A large span multi-curvature transverse louver synchronous controlled electrically operated bending steel glazing unit as claimed in claim 1, wherein, The drive mechanism also includes a Hall sensor and a main control module. The Hall sensor monitors the rotation angle of the blade shaft in real time, and the main control module dynamically adjusts the motor speed according to the feedback signal so that the error of the first and last curtain flip angle is ≤ ±0.4°.

8. A large span multi-curvature transverse louver synchronous controlled electrically operated bending steel glazing unit as claimed in claim 1, wherein, When the window width W ≥ 3 meters, the number of segmented connections of the multi-directional synchronous compensation coupling is: Furthermore, the coaxiality error between the input and output shafts of each coupling segment is ≤0.05mm.

9. A large span multi-curvature transverse louver synchronous controlled electrically operated bending steel glazing unit as claimed in claim 1, wherein, The arc-shaped top frame includes a frame and a cover plate, and the two are connected by a slot.

Images