A motorized lift window drive device and motorized lift window that are easy to assemble

Abstract

The utility model discloses a kind of electric lifting window drive device and electric lifting window convenient to assemble, belong to motor field, solve the inconvenient problem of installation of prior art's drive device, the technical scheme solving this problem includes motor, gear box and transmission screw rod, the gear box is rectangular shell, the worm gear drive mechanism is equipped in the gear box, the output shaft of the motor is connected with worm, the worm wheel is coaxially fixed with the transmission screw rod, at least two mounting holes are equipped on the same side surface of the gear box, at least two the mounting hole includes a circular through hole and a non-circular through hole.The utility model makes drive device more convenient to install to electric lifting window.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to an electric lifting window drive device and an electric lifting window that are easy to assemble. Background Technology

[0002] In existing electric window lift drive systems, the motor, gearbox, and lead screw are typically separate components. During installation, the gearbox needs to be secured to the window frame or bracket using multiple screws. However, traditional gearboxes often employ a fully circular mounting hole layout, making quick positioning difficult during assembly and failing to effectively prevent rotation around the mounting axis. Especially in confined or high-altitude work environments, installers must repeatedly adjust the position and use additional clamps for fixation, which not only reduces assembly efficiency but may also cause positioning deviations that affect the alignment of the lead screw and window sash connection mechanism, potentially leading to jamming or wear. Utility Model Content

[0003] The purpose of this invention is to provide an electric lifting window drive device that is easy to assemble, which solves the problem of inconvenient installation of existing drive devices and makes it easier to install the drive device into the electric lifting window.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an electric lifting window drive device that is easy to assemble, comprising a motor, a gearbox, and a transmission screw. The gearbox is a rectangular shell, and a worm gear transmission mechanism is provided inside the gearbox. The output shaft of the motor is connected to the worm, and the worm gear is coaxially fixed with the transmission screw. At least two mounting holes are provided on the same side of the gearbox, and the at least two mounting holes include a circular through hole and a non-circular through hole.

[0005] After adopting the above technical solution, this utility model has the following advantages: First, the rectangular shell's shape and the typically right-angled, elongated cavity inside the window frame perfectly match, effectively utilizing the limited installation space and minimizing interference or space waste caused by the mismatch in the contour of the traditional circular shell. It also provides a clear layout path for surrounding wiring harnesses, brackets, and other components, improving the integration and compactness of the entire window system. Second, the different shapes of the circular and non-circular through holes create an asymmetrical structure, ensuring that the gearbox can only be installed in one correct direction. This fundamentally eliminates transmission misalignment or functional failure caused by reverse installation, achieving a reliable foolproof design. The specific geometric contour of the non-circular through hole also provides clear directional constraints during screw tightening, achieving high repeatability positioning accuracy. Simultaneously, the surface contact or contour engagement between the non-circular hole and the fastener effectively resists the reaction torque generated during worm gear transmission, minimizing gearbox rotation around the installation axis. Stable and reliable anti-rotation fixing can be achieved without additional anti-rotation structures or auxiliary clamps. Without increasing the number of parts or complicating assembly processes, installation convenience is improved solely through the optimization of the shell's shape and the geometric features of the mounting holes.

[0006] Furthermore, there are three mounting holes, and the three mounting holes are not on the same straight line.

[0007] Using the aforementioned technical solution, the three non-collinear mounting holes can form a stable triangular support structure, achieving greater stability in gearbox installation.

[0008] Furthermore, the non-circular through hole is an oblong hole or a square hole.

[0009] Furthermore, the gearbox is located at the output end of the motor, and the gearbox and the motor are arranged in an L-shape.

[0010] The L-shaped arrangement allows the motor and gearbox to extend in different directions without occupying continuous space on the same plane, making it more suitable for narrow installation environments.

[0011] Furthermore, the motor housing includes a top support surface, a bottom support surface, and a connecting surface connecting the top support surface and the bottom support surface. The top support surface and the bottom support surface are both planar, and the connecting surface is arc-shaped.

[0012] The aforementioned technical solution provides a planar support surface that is easy to hold or fix with the aid of simple tools, making it particularly suitable for complex work scenarios such as narrow spaces and high altitudes. This reduces the difficulty of operation for installers and also facilitates close contact with the installation surface or auxiliary tooling, providing a stable support reference.

[0013] Furthermore, the bottom surface of the gearbox and the bottom support surface of the motor are located on the same horizontal plane.

[0014] With the above technical solution, the two surfaces are coplanar to form a unified mounting support surface. There is no need to adjust the height of the motor and gearbox separately. The entire drive device can be quickly positioned on the mounting surface, and the device can be placed more stably on the mounting surface.

[0015] Furthermore, the gearbox housing is provided with a positioning groove that is adapted to the motor housing, and the output end of the motor is embedded in the positioning groove and fixed to the gearbox.

[0016] Through the above technical solution, the positioning groove provides a clear docking benchmark, and the motor output end can be directly embedded in the groove for quick alignment without repeatedly adjusting the relative position of the motor and gearbox, thus shortening the assembly time. Embedded assembly can also make the structure more compact.

[0017] Furthermore, the power cable of the motor is led out from the side of the motor near the gearbox and extends along the length of the motor.

[0018] The above technical solution, which uses wiring that extends along the length of the motor, allows the wiring to fit snugly against the motor housing, reducing outward lateral or longitudinal protrusion and directly reducing the size occupied by the drive unit along the length of the motor.

[0019] Another objective of this utility model is to provide an electric lift window, including a window frame, a liftable window panel, and a drive device for driving the window panel to rise and fall. The drive device is the drive device described in any of the above technical solutions. The window frame is provided with a horizontal mounting cavity arranged horizontally along the window frame and a vertical mounting cavity arranged vertically along the window frame. The horizontal mounting cavity and the vertical mounting cavity form an L-shaped mounting space at the corner of the window frame. The gearbox is located in the L-shaped mounting space, the motor is located in the horizontal mounting cavity, and the transmission screw is located in the vertical mounting cavity.

[0020] Through the above technical solution, the L-shaped structure closely matches the naturally formed L-shaped installation space at the corner of the window frame, greatly simplifying the assembly process. The drive device can be directly embedded into the corner area from the outside or inside of the window frame, reducing the steps of assembling parts one by one in narrow cavities. It is especially suitable for on-site operations at height or in confined spaces, significantly improving installation efficiency and positioning consistency. Secondly, the motor and the transmission screw are placed in different cavities, realizing functional zoning and spatial decoupling. The horizontal installation cavity provides stable support for the motor, while the vertical installation cavity limits the transmission direction of the transmission screw. The heat, electromagnetic interference, and vibration generated by the motor are confined within the horizontal installation cavity, minimizing direct impact on the transmission screw in the vertical installation cavity, which has higher requirements for precision and lubrication. At the same time, the linear motion path of the transmission screw is not affected by the shape of the motor or the wiring, and can maintain stable coaxial operation throughout the entire process.

[0021] Furthermore, the L-shaped mounting space is provided at both ends of the transverse mounting cavity.

[0022] With the above technical solution, there are L-shaped installation spaces at both ends, and the gearbox can be installed at either end according to the actual layout of the window frame and the on-site working conditions. It is not limited by a single installation position and has a wider range of applications. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the easily assembled electric lifting window drive device in Embodiment 1 of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the electric lifting window drive device, which is easy to assemble, in Embodiment 1 of this utility model.

[0026] Figure 3 This is a partial structural schematic diagram from another perspective of the electric lifting window drive device that is easy to assemble in Embodiment 1 of this utility model.

[0027] Figure 4 This is a partial structural schematic diagram from another perspective of the electric lifting window drive device that is easy to assemble in Embodiment 1 of this utility model.

[0028] Figure 5 This is a schematic diagram of the electric lifting structure in Embodiment 2 of this utility model;

[0029] Figure 6 This is a cross-sectional view of the electric lifting mechanism in Embodiment 2 of this utility model;

[0030] Figure 7 This is a cross-sectional view of the electric lifting mechanism from another perspective in Embodiment 2 of this utility model;

[0031] In the diagram, 1. Motor; 11. Top support surface; 12. Bottom support surface; 13. Connecting surface; 14. Power cord; 2. Gearbox; 21. Circular through hole; 22. Non-circular through hole; 23. Positioning groove; 3. Transmission screw; 4. Window frame; 41. Vertical mounting cavity; 42. Horizontal mounting cavity; 5. Window panel; 6. Joint bearing. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0033] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein.

[0034] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0035] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0036] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0037] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0038] Example 1:

[0039] like Figures 1 to 4 As shown, this utility model provides an easy-to-assemble electric lifting window drive device, including a motor 1, a gearbox 2 and a transmission screw 3. The gearbox 2 is a rectangular shell, and a worm gear transmission mechanism is provided inside the gearbox 2. The output shaft of the motor 1 is connected to the worm, and the worm gear is coaxially fixed with the transmission screw 3. At least two mounting holes are provided on the same side of the gearbox 2, including a circular through hole 21 and a non-circular through hole 22.

[0040] First, the rectangular shell's shape perfectly matches the typically right-angled, elongated cavity inside the window frame 4. This not only effectively utilizes limited installation space and minimizes interference or space waste caused by mismatched contours in traditional circular shells, but also provides a clear layout path for surrounding wiring harnesses, brackets, and other components, enhancing the integration and compactness of the entire window system. Second, the different shapes of the circular and non-circular through holes create an asymmetrical structure, ensuring that the gearbox 2 can only be installed in one correct direction. This fundamentally eliminates transmission misalignment or functional failure caused by reverse installation, achieving a reliable foolproof design. The specific geometric contour of the non-circular through hole 22 also provides clear directional constraints during screw tightening, achieving high repeatability positioning accuracy. Simultaneously, the surface contact or contour engagement between the non-circular hole and the fastener effectively resists the reaction torque generated during worm gear transmission, preventing the gearbox 2 from rotating around the mounting axis. Stable and reliable anti-rotation fixing can be achieved without additional anti-rotation structures or auxiliary clamps. Without increasing the number of parts or complicating assembly processes, installation convenience is improved solely through the optimization of the shell shape and mounting hole geometry.

[0041] Preferably, there are three mounting holes, and the three mounting holes are not on the same straight line. The non-collinear arrangement can form a stable triangular support structure, which effectively constrains the gearbox 2's two translational degrees of freedom and one rotational degree of freedom about the normal axis in the mounting plane during the installation process, thereby significantly improving its positioning accuracy and installation stability, and preventing the housing from shifting or loosening due to vibration or transmission reaction torque as much as possible.

[0042] Among them, the non-circular through hole 22 can be a waist-shaped hole. The waist-shaped hole has a certain dimensional allowance along its long axis, allowing the screw to be finely adjusted in this direction, thereby effectively compensating for dimensional deviations that may occur during manufacturing and installation, and ensuring convenient and accurate positioning. At the same time, the short side width of the waist-shaped hole is closely matched with the screw, providing a clear directional constraint, preventing the gearbox 2 from rotating around the mounting axis as much as possible, and achieving a reliable anti-rotation fixing function.

[0043] The housing of motor 1 includes a top support surface 11, a bottom support surface 12, and a connecting surface 13 connecting the top support surface 11 and the bottom support surface 12. The top support surface 11 and the bottom support surface 12 are both planar, while the connecting surface 13 is arc-shaped. The planar support surface is easy to hold or fix with the help of simple tools, making it especially suitable for complex working scenarios such as narrow spaces and high altitudes. This reduces the difficulty of operation for installers and also makes it easy to fit tightly with the mounting surface or auxiliary tooling, providing a stable support reference.

[0044] Furthermore, the bottom surface of the gearbox 2 and the bottom support surface 12 of the motor 1 are located on the same horizontal plane, forming a unified mounting support surface. There is no need to adjust the height of the motor 1 and the gearbox 2 separately, which can quickly position the entire drive device on the mounting surface and make the device more stable on the mounting surface.

[0045] To make the drive unit structure more compact, the housing of gearbox 2 is provided with a positioning groove 23 that is adapted to the housing of motor 1. The output end of motor 1 is embedded in the positioning groove 23 and fixed to gearbox 2. The positioning groove 23 provides a clear docking reference, and the output end of motor 1 can be directly embedded in the groove for quick alignment without repeatedly adjusting the relative position of motor 1 and gearbox 2, shortening the assembly time. Embedded assembly can also make the structure more compact.

[0046] In traditional designs, if the power cord 14 is led out from the end of the motor 1 furthest from the gearbox 2, the cable outlet and necessary bending radius, protective structure, or connectors will extend an additional distance, increasing the overall length of the device. Therefore, in this application, the power cord 14 of the motor 1 is led out from the side of the motor 1 closest to the gearbox 2 and extends along the length of the motor 1, allowing the cord to fit snugly against the motor 1 housing, reducing lateral or longitudinal protrusion and directly reducing the size occupied by the drive unit along the length of the motor 1.

[0047] Furthermore, the gearbox 2 is located at the output end of the motor 1. The gearbox 2 and the motor 1 are arranged in an L-shape. The L-shape arrangement allows the motor 1 and the gearbox 2 to extend in different directions, without occupying continuous space on the same plane, making it more suitable for narrow installation environments.

[0048] It is understood that in other embodiments, the number of mounting holes may also be set to four, five or other suitable numbers according to actual needs; the specific number may be determined by combining factors such as the size of the motor, output torque, vibration characteristics and structural strength of the window frame mounting base, and a suitable number of fasteners may be selected accordingly for fixing, so as to ensure the reliability of installation while taking into account structural compactness and manufacturing economy.

[0049] Understandably, in other embodiments, non-circular through holes may also be square holes to suit square fasteners.

[0050] Example 2:

[0051] like Figures 5 to 7As shown, in this embodiment, an electric lift window is provided, including a window frame 4, a liftable window panel 5, and a drive device for driving the window panel 5 to rise and fall. The drive device is any of the drive devices in the above technical solutions. The window frame 4 is provided with a horizontal mounting cavity 42 arranged horizontally along the window frame 4 and a vertical mounting cavity 41 arranged vertically along the window frame 4. The horizontal mounting cavity 42 and the vertical mounting cavity 41 form an L-shaped mounting space at the corner of the window frame 4. The gearbox 2 is located in the L-shaped mounting space, the motor 1 is located in the horizontal mounting cavity 42, and the transmission screw 3 is located in the vertical mounting cavity 41.

[0052] The L-shaped structure perfectly matches the L-shaped installation space naturally formed at the corner of the window frame 4, greatly simplifying the assembly process. The drive unit can be directly embedded into the corner area from the outside or inside of the window frame 4 as a whole, reducing the steps of assembling parts one by one in a narrow cavity. It is especially suitable for on-site operations at height or in confined spaces, significantly improving installation efficiency and positioning consistency. Secondly, the motor 1 and the transmission screw 3 are placed in different cavities, realizing functional zoning and spatial decoupling. The horizontal mounting cavity 42 provides stable support for the motor 1, and the vertical mounting cavity 41 defines the transmission direction of the transmission screw 3. The heat, electromagnetic interference and vibration generated by the motor 1 are confined within the horizontal mounting cavity 42, avoiding direct impact on the transmission screw 3 in the vertical mounting cavity 41, which has higher requirements for precision and lubrication. At the same time, the linear motion path of the transmission screw 3 is not affected by the shape of the motor 1 or the wiring, and can maintain stable coaxial operation throughout the entire process.

[0053] It should be noted that the window frame 4 is also equipped with a spherical bearing 6 corresponding to the transmission screw 3. The transmission screw 3 is mounted on the window frame 4 through the spherical bearing 6. The transmission screw 3 is equipped with a threaded sleeve that is threadedly engaged with the transmission screw 3 and fixedly connected to the window panel 5. Compared with ball bearings, the spherical bearing 6 eliminates the balls, has better load-bearing capacity, and can withstand a large load. Even after the drive device stops running, it can withstand the inertial impact brought by the window panel 5 and is not easily damaged.

[0054] Furthermore, both ends of the transverse mounting cavity 42 are provided with L-shaped mounting spaces. With L-shaped mounting spaces at both ends, the gearbox 2 can be installed at either end according to the actual layout of the window frame 4 and the on-site working conditions. It is not limited by a single installation position and has a wider range of applications.

[0055] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. An easy-to-assemble electric lifting window drive device, comprising a motor, a gearbox, and a transmission screw, characterized in that: The gearbox is a rectangular shell, and a worm gear transmission mechanism is provided inside the gearbox. The output shaft of the motor is connected to the worm, and the worm gear is coaxially fixed with the transmission screw. At least two mounting holes are provided on the same side of the gearbox, including a circular through hole and a non-circular through hole.

2. The easily assembled electric lifting window drive device according to claim 1, characterized in that, The mounting holes are provided in three places, and the three mounting holes are not on the same straight line.

3. The easily assembled electric lifting window drive device according to claim 1, characterized in that, The non-circular through hole is either a waist-shaped hole or a square hole.

4. The easily assembled electric lifting window drive device according to claim 1, characterized in that, The gearbox is located at the output end of the motor, and the gearbox and the motor are arranged in an L-shape.

5. The easily assembled electric lifting window drive device according to claim 1, characterized in that, The motor housing includes a top support surface, a bottom support surface, and a connecting surface connecting the top support surface and the bottom support surface. The top support surface and the bottom support surface are both planar, and the connecting surface is arc-shaped.

6. The easily assembled electric lifting window drive device according to claim 5, characterized in that, The bottom surface of the gearbox and the bottom support surface of the motor are on the same horizontal plane.

7. The easily assembled electric lifting window drive device according to claim 1, characterized in that, The gearbox housing is provided with a positioning groove that is adapted to the motor housing, and the output end of the motor is embedded in the positioning groove and fixed to the gearbox.

8. The easily assembled electric lifting window drive device according to claim 1, characterized in that, The power cord of the motor is led out from the side of the motor near the gearbox and extends along the length of the motor.

9. An electrically operated lifting window, characterized in that, The device includes a window frame, a liftable window panel, and a drive device for driving the window panel to rise and fall. The drive device is the drive device according to any one of claims 1 to 8. The window frame is provided with a horizontal mounting cavity arranged horizontally along the window frame and a vertical mounting cavity arranged vertically along the window frame. The horizontal mounting cavity and the vertical mounting cavity form an L-shaped mounting space at the corner of the window frame. The gearbox is located in the L-shaped mounting space, the motor is located in the horizontal mounting cavity, and the transmission screw is located in the vertical mounting cavity.

10. The electrically operated lifting window according to claim 9, characterized in that, The L-shaped mounting space is provided at both ends of the transverse mounting cavity.

Images