Aluminum alloy door and window with controllable light transmittance
Patent Information
- Application Number
- CN202522268145.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-27
AI Technical Summary
Existing aluminum alloy doors and windows have a long light transmittance switching time, making it unable to quickly respond to the needs of different lighting conditions.
The device employs a dimming assembly, including a rotating shaft and blades. A drive motor drives a pull rope to rotate the blades, adjusting the light transmittance of the glass. Combined with a sealed space protection assembly, it prevents dust and moisture from entering.
It enables convenient adjustment of light transmittance, improves living comfort, extends the service life of doors and windows, simplifies operation, and saves manpower.
Smart Images

Figure CN224931561U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building door and window technology, and in particular to an aluminum alloy door and window with controllable light transmittance. Background Technology
[0002] Aluminum alloy doors and windows are a widely used type of door and window in the construction industry. They use extruded aluminum alloy profiles as frames, mullions, and sashes. They also include aluminum-wood composite doors and windows and aluminum-plastic composite doors and windows, which use aluminum alloy as the load-bearing material and are combined with wood or plastic. The quality of aluminum alloy doors and windows can be roughly judged from aspects such as the selection of raw materials (aluminum profiles), the surface treatment of the aluminum material, the quality of internal processing, and price.
[0003] In practical use, people have different needs regarding the light transmittance of aluminum alloy doors and windows. For example, when the sunlight is strong, it is necessary to reduce light transmittance to avoid glare and indoor temperature rise, while when the light is dim, it is desirable to increase light transmittance. However, existing aluminum alloy doors and windows generally use electrochromic glass to change the light transmittance of the glass. This type of glass requires electrical control, and generally suffers from the problem of a long light transmittance switching time. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an aluminum alloy door and window with controllable light transmittance, which does not require the use of electrochromic glass and saves the time of light transmittance switching.
[0005] This utility model provides an aluminum alloy door and window with controllable light transmittance, comprising: Window frame, fixedly installed on the building window; A sash frame, hinged to the window frame, is used for its opening and closing operation; Glass panes are fixedly installed on both sides of the fan frame, and a sealed space is formed between the two glass panes and the fan frame; A dimming component, located within the sealed space, is used to adjust the light transmittance of the glass.
[0006] Furthermore, the dimming assembly includes two symmetrically arranged side plates, the end of each side plate being fixedly connected to the fan frame; multiple rotating shafts are rotatably arranged between the two side plates, evenly spaced along their length direction, and blades extending along their length direction are fixedly arranged on the rotating shafts, with the ends of the multiple blades being fixedly connected to connecting ropes on the side opposite to the rotating shafts.
[0007] Furthermore, a drive motor located within the sealed space is fixedly installed on the window frame, and a pull rope is wound around the drive shaft of the drive motor. The free end of the pull rope is fixedly connected to the blade near the drive motor. When the drive motor rotates, each blade rotates around its corresponding shaft.
[0008] Furthermore, the profile of the fan frame includes a support plate, and each end of the support plate is fixedly provided with a mounting plate, with the two mounting plates located on the same side of the support plate.
[0009] Furthermore, a groove is formed along the length of the mounting plate on the side opposite to the supporting plate to accommodate the glass.
[0010] Furthermore, a plurality of hinges are provided between the sash frame and the window frame, which are equally spaced along the vertical direction; the mother page of the hinge is fixedly connected to the window frame, and the child page of the hinge is fixedly connected to the sash frame.
[0011] Furthermore, a handle is provided on the side of the fan frame away from the hinge.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention provides an aluminum alloy door and window with controllable light transmittance. By setting a dimming component located in the sealed space, the light transmittance of the glass can be easily adjusted. By using a drive motor to drive the pull rope, multiple blades can be rotated around their respective axes, which can easily change the relative angle and shading area between the blades, thereby meeting the indoor light needs at different times and under different weather conditions, and improving the comfort of living and use.
[0013] In this utility model, the sash frame adopts a profile structure including a support plate and a mounting plate. The groove opened on the mounting plate is used to accommodate the glass, ensuring the stability of the glass installation. At the same time, the two pieces of glass and the sash frame form a sealed space, effectively protecting the internal dimming components and preventing damage from external dust, moisture, etc., thus extending the service life of the doors and windows.
[0014] In this invention, the sash frame and the window frame are connected by multiple hinges that are equally spaced along the vertical direction. Combined with the handle on the sash frame, the opening and closing of the door and window is very convenient. Moreover, the dimming component is controlled by a drive motor, eliminating the need for manual adjustment of the blades, saving manpower and providing a better user experience.
[0015] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description
[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a structural diagram of aluminum alloy doors and windows; Figure 2 This is a cross-sectional view of aluminum alloy doors and windows; Figure 3 This is a top view of the blade; The numbers in the diagram are: 1. Window frame, 2. Sash frame, 3. Glass, 4. Sealed space, 5. Dimming assembly, 6. Hinge, 7. Handle; 21. Support plate; 22. Mounting plate; 23. Groove; 52. Side plate, 53. Shaft, 54. Blade, 55. Connecting rope, 56. Drive motor, 57. Pull rope. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0019] Example 1
[0020] Please refer to Figures 1-3 The present invention provides an aluminum alloy door and window with controllable light transmittance, comprising: a window frame 1, a sash frame 2, glass 3, and a dimming component 5.
[0021] The window frame 1 is made of high-strength aluminum alloy profiles through cutting, welding or splicing. Its overall structure matches the size of the building window and is firmly set on the wall of the building window by expansion bolts, embedded parts and other fixing connectors to form a fixed frame foundation for the door and window. It is used to provide support for the installation and rotation of the sash frame 2, and plays a role in sealing, heat preservation and decorating the building facade.
[0022] The sash frame 2 is also made of aluminum alloy profile, and its outline matches the inner outline of the window frame 1. It is movably connected to one side edge of the window frame 1 through a hinge component, so that the window frame 1 can rotate relative to the window frame 1 around the hinge axis, thereby realizing the opening and closing operation of the door and window. The profile structure design of the sash frame 2 needs to meet certain strength requirements to ensure its stability during opening and closing and daily use.
[0023] The glass 3 is made of safety glass with good light transmission performance, such as tempered glass or insulated glass. It is tightly set on both sides of the sash frame 2 by means of sealing strips, glass pressure strips or grooves. The two pieces of glass 3 and the sash frame 2 together form a relatively independent sealed space 4. The sealed space 4 can effectively block the entry of external air, dust, water vapor, etc. through sealing treatment, and also has a certain heat insulation and sound insulation effect.
[0024] The dimming component 5 is assembled inside the sealed space 4, and its position corresponds to the two glass pieces 3. It can change the degree of light blocking or transmission by adjusting its own structure, thereby realizing flexible control of the overall light transmittance of the glass 3 to adapt to the indoor light intensity needs at different times and in different environments, and improve the comfort and functionality of the doors and windows.
[0025] Example 2
[0026] like Figures 1-3 As shown, the dimming assembly 5 includes two side plates 51 arranged symmetrically. The side plates 51 are made of lightweight and high-strength metal plates or engineering plastics. Their length is adapted to the corresponding side length of the fan frame 2, and their width is designed according to the thickness of the sealed space 4.
[0027] Both ends of each side plate 51 are fixedly connected to the inner frame of the fan frame 2 by means of screws, clips or welding to form a stable support frame and ensure the firmness of the installation of the entire dimming assembly 5 in the sealed space 4.
[0028] Multiple rotating shafts 52, evenly spaced along their length, are rotatably disposed between the two side plates 51. Each rotating shaft 52 has a blade 53 extending integrally along its length. Specifically, the spacing between adjacent rotating shafts 52 is matched to the width of the blade 53 to ensure effective shading or light transmission adjustment when the blade 53 rotates.
[0029] The rotating shaft 52 is made of wear-resistant metal shaft, and its two ends are rotatably connected to the two side plates 51 through bearings or bushings, so that the rotating shaft 52 can rotate flexibly around its own axis and reduce frictional resistance during rotation.
[0030] The blade 53 is made of lightweight light-blocking material (such as aluminum alloy sheet, frosted plastic sheet, etc.), and its length is the same as that of the rotating shaft 52. The width is designed according to the light transmission adjustment range. The blade 53 and the rotating shaft 52 are fixedly connected by welding, bonding or integral molding to ensure that the blade 53 can rotate synchronously with the rotating shaft 52 and avoid relative displacement from affecting the dimming effect.
[0031] The ends of multiple blades 53 (i.e., the free ends away from the rotating shaft 52) on the side facing away from the rotating shaft 52 are all fixedly connected to a connecting rope 54 by knots, buckles, or special connectors. The connecting rope 54 is made of a high-strength, tough, and non-aging material, such as nylon rope or steel wire, and its length is adapted to the arrangement length of the blades 53. By connecting the free ends of multiple blades 53 in series, when a single blade 53 rotates, it can drive the other blades 53 to rotate synchronously through the traction of the connecting rope 54, ensuring the consistency of the angle adjustment of multiple blades 53, thereby achieving uniform control of light transmittance.
[0032] A drive motor 55 is fixedly mounted on the inner frame of the window frame 1 via a mounting bracket. The drive motor 55 is located within the sealed space 4 formed by the two glass panels 3 and the sash frame 2, and its installation position corresponds to the blade 53, ensuring that the driving force can be effectively transmitted to the blade 53. The drive motor 55 is a miniaturized, low-noise servo motor with forward and reverse rotation functions and stable output torque, which can precisely control the rotation angle to meet the different adjustment range requirements of the blade 53.
[0033] A winding component is fixedly provided at the end of the drive shaft of the drive motor 55. One end of a pull rope 56 is tightly wound around the winding component. The winding method must ensure that the pull rope 56 does not slip or fall off during the winding and unwinding process. The other end is a free end and is fixedly connected to the side of the first blade 53 near the drive motor 55 (the side away from the rotating shaft 52) by means of hooking, knotting or crimping.
[0034] The pull rope 56 is made of high-strength, low-elongation materials, such as plastic-coated steel wire rope and aramid fiber rope, to ensure that it is not easy to break or deform significantly during transmission, and can adapt to the environment in the enclosed space, and is not easy to fail due to moisture or aging.
[0035] When the drive motor 55 starts and rotates in the forward direction, its drive shaft will gradually tighten the pull rope 56. The tension of the pull rope 56 acts on the blade 53 connected to it, causing the blade 53 to rotate around its corresponding shaft 52 towards the drive motor 55. Since the free ends of multiple blades 53 are connected in series by the connecting rope 54, the rotation of the first blade 53 will sequentially pull the subsequent blades 53 through the connecting rope 54, eventually driving all blades 53 to rotate synchronously around their respective shafts 52, thus achieving uniform adjustment of the blade angle.
[0036] Conversely, when the drive motor 55 rotates in the reverse direction, the drive shaft releases the pull cord 56, and the blades 53 can rotate in the opposite direction under the action of their own gravity or a preset reset mechanism (such as a torsion spring), returning to the initial angle or other preset positions.
[0037] Through the forward and reverse rotation control of the drive motor 55, the rotation angle of all the blades 53 can be accurately adjusted, so as to flexibly change the light shielding area of the blades 53 and realize controllable adjustment of light transmittance.
[0038] Embodiment 3
[0039] As shown in Figures 1-3 , the profile of the sash frame 2 adopts an integrally extruded aluminum alloy structure, whose core force-bearing component is a bearing plate 21. The bearing plate 21 is an elongated flat plate structure made of high-strength aluminum alloy, which has sufficient rigidity and deformation resistance, can bear the weight of the glass 3 and the dimming assembly 5, and maintains the stability of the overall structure during the opening and closing process of the door or window.
[0040] At both ends in the width direction of the bearing plate 21, mounting plates 22 are fixedly provided by means of integral profile forming or welding. The mounting plates 22 are also aluminum alloy plates, arranged perpendicularly to the bearing plate 21 or at a preset angle, and the two mounting plates 22 are located on the same side of the bearing plate 21 to form a "C"-shaped cross-sectional structure, which together constitute the main frame body of the sash frame 2, providing a symmetrical and stable support foundation for the installation of the glass 3.
[0041] On the plate surface of each side of the mounting plate 22 facing away from the bearing plate 21, a continuous groove 23 is provided along its length direction. The cross-sectional shape of the groove 23 is adapted to the edge thickness of the glass 3, and is usually rectangular.
[0042] The depth of the groove 23 is designed according to the installation requirements of the glass 3, to ensure that the edge of the glass 3 can be completely embedded therein, and a sealing strip installation groove can be further provided on the inner side wall of the groove opening for placing the elastic sealing strip. When the glass 3 is installed, its edge is embedded into the groove 23 of the mounting plate 22 located in the same horizontal direction, and the tight fixation between the glass 3 and the sash frame 2 is realized through the elastic extrusion of the sealing strip, while ensuring the sealing performance of the connecting part between the two, effectively blocking external moisture and dust from entering the sealed space 4, and enhancing the heat preservation and sound insulation performance of the door or window.
[0043] Embodiment 4
[0044] As shown in Figure 1As shown, to ensure the stability of the hinge connection between the sash frame 2 and the window frame 1 and the smoothness of the opening and closing process, a plurality of hinges 6 are provided between the corresponding sides of the sash frame 2 and the window frame 1, and the spacing is adapted according to the overall height and weight of the sash frame 2. That is, the higher the sash frame 2 and the greater its weight, the more hinges 6 there are and the smaller the spacing, so as to avoid the sash frame 2 from sagging or deforming due to uneven force, and to ensure that it can still rotate flexibly after long-term use.
[0045] The hinge 6 is made of high-strength stainless steel or aluminum alloy, which has good rust resistance and wear resistance. Its structure includes a mother page and a daughter page that can rotate with each other. The two are flexibly hinged by a hinge shaft in the middle, and lubricating grease can be applied to the hinge shaft to reduce friction noise and wear during rotation.
[0046] The mother page of the hinge 6 is fixedly connected to the inner frame of the window frame 1 by countersunk screws or self-tapping screws. The number and specifications of the screws are designed according to the load-bearing requirements of the hinge 6 to ensure that there is no looseness between the mother page and the window frame 1. The child page of the hinge 6 is fixedly connected to the corresponding position of the outer frame of the sash frame 2 by the same fixing method. The installation positions of the mother page and the child page are precisely aligned so that the sash frame 2 can maintain a good fit with the window frame 1 when closed, avoiding gaps that affect the sealing performance.
[0047] To facilitate the user's operation of opening and closing the fan frame 2, a handle 7 is movably provided on the side of the fan frame 2 away from the hinge 6 (i.e., the free side of the fan frame 2) via a rotating connector (such as a pin). The handle 7 can rotate around its own mounting axis at a certain angle, making the operation very convenient.
[0048] The working principle of aluminum alloy doors and windows with controllable light transmittance: When it is necessary to adjust the light transmittance of glass 3, the drive motor 55 is started. The drive shaft of the drive motor 55 rotates, causing the pull rope 56 to wind or release. The movement of the pull rope 56 causes the blades 53 fixedly connected to it to rotate around their corresponding shafts 52. Since the ends of multiple blades 53 are connected by connecting ropes 54, when the blade 53 closest to the drive motor 55 rotates, it will drive the other blades 53 to rotate synchronously around their respective shafts 52 through the connecting ropes 54. By changing the relative angle and shading area between the blades 53, the light transmittance of glass 3 can be adjusted.
[0049] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0050] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0051] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An aluminum alloy door and window with controllable light transmittance, characterized in that, include: Window frame (1), fixedly installed on the building window; The sash frame (2) is hinged to the window frame (1) for its opening and closing operation; Glass (3) is fixedly installed on both sides of the fan frame (2), and a sealed space (4) is formed between the two pieces of glass (3) and the fan frame (2). The dimming component (5) is located within the sealed space (4) and is used to adjust the light transmittance of the glass (3).
2. The aluminum alloy door and window with controllable light transmittance according to claim 1, characterized in that, The dimming assembly (5) includes two symmetrically arranged side plates (51), the end of each side plate (51) is fixedly connected to the fan frame (2); multiple rotating shafts (52) are rotatably arranged between the two side plates (51) and are evenly distributed along their length direction. Blades (53) extending along their length direction are fixedly arranged on the rotating shafts (52), and the ends of the multiple blades (53) on the side away from the rotating shafts (52) are fixedly connected to the connecting rope (54).
3. The aluminum alloy door and window with controllable light transmittance according to claim 2, characterized in that, A drive motor (55) is fixedly installed on the window frame (1) and located in the sealed space (4). A pull rope (56) is wound on the drive shaft of the drive motor (55). The free end of the pull rope (56) is fixedly connected to the blade (53) near the drive motor (55). When the drive motor (55) rotates, each blade (53) rotates around its corresponding shaft (52).
4. The aluminum alloy door and window with controllable light transmittance according to claim 1, characterized in that, The profile of the fan frame (2) includes a support plate (21), and each end of the support plate (21) is fixedly provided with a mounting plate (22), and the two mounting plates (22) are located on the same side of the support plate (21).
5. The aluminum alloy door and window with controllable light transmittance according to claim 4, characterized in that, The mounting plate (22) has a groove (23) along its length on the side facing away from the bearing plate (21) to accommodate the glass (3).
6. The aluminum alloy door and window with controllable light transmittance according to claim 1, characterized in that, Multiple hinges (6) are provided between the fan frame (2) and the window frame (1) at equal intervals along the vertical direction; the mother page of the hinge (6) is fixedly connected to the window frame (1), and the child page of the hinge (6) is fixedly connected to the fan frame (2).
7. The aluminum alloy door and window with controllable light transmittance according to claim 6, characterized in that, The fan frame (2) is provided with a handle (7) on the side away from the hinge (6).
