Electric sunshade window and curtain lifting method thereof

Abstract

The invention relates to the technical field of curtains, in particular to an electric sunshade window and a curtain lifting method thereof. The electric sunshade window comprises a window frame, a curtain body, a driving assembly and a plurality of rope winders, the driving assembly and the rope winders are arranged on the window frame, each rope winder comprises a shell and a rope winding shaft used for winding or releasing a window rope, an output shaft of the driving assembly is in transmission connection with the rope winding shaft, and the rope winders are connected with the curtain body through the window rope. The rope winding shaft is driven by the driving assembly to rotate, the window rope is wound or released, and the curtain body is correspondingly driven to ascend or descend. A stroke matching piece is arranged in at least one shell, a stopping part and a lifting part are formed on the stroke matching piece, the stopping part faces the rope winding shaft, and the lifting part penetrates out of the bottom of the shell in a sliding mode and is located on an ascending path of the curtain body. By the adoption of the sunshade window, the position of the limiting structure does not need to be adaptively adjusted during debugging and using, and the debugging time of the sunshade window can be effectively shortened.

Description

Technical Field

[0001] This invention relates to the field of curtain technology, and in particular to an electric sunshade window and its curtain lifting and lowering method. Background Technology

[0002] Venetian blinds, as a common window decoration and sun-shading device, are widely used due to their diverse functions and neat and beautiful appearance. Venetian blinds can be divided into two types according to their driving method: manual Venetian blinds and electric Venetian blinds. Electric Venetian blinds mainly use a motor and shaft to drive the rope winder to realize the winding and releasing of the rope, thereby completing the extension and retraction of the slats.

[0003] The electric louvers of related technologies mainly limit the upward stroke of the louvers by arranging micro switches or other limiting structures. After the roller rotates a certain number of times, the corresponding limiting structure can be triggered to stop the roller rotation, thereby limiting the upward stroke of the louvers.

[0004] However, in practical applications, there will be a certain deviation between the actual number of rotations of the roller and the number of rotations output by the motor. This requires adaptive settings or adjustments to the travel limit structure, which increases the debugging time of the louvers and affects user experience. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an electric sunshade window that eliminates the need for adaptive adjustments to the position of the limiting structure during debugging and use, effectively shortening the debugging time and improving the user experience.

[0006] To solve the above-mentioned technical problems, the present invention provides an electric sunshade window, including a window frame, a curtain, a drive assembly, and a plurality of rope winders. The drive assembly and the rope winders are disposed on the window frame. The rope winders include a housing and a rope winding shaft for winding or releasing the window rope. The output shaft of the drive assembly is drivenly connected to the rope winding shaft. The rope winders are connected to the curtain through the window rope.

[0007] At least one of the housings has a travel fitting inside, the travel fitting having a stop and a lifting part, the stop facing the winding shaft, the lifting part slidably extending out of the bottom of the housing, and the lifting part being located on the rising path of the curtain;

[0008] When the curtain rises, the curtain abuts against the lifting part, and the curtain is used to push the travel fitting against the winding shaft.

[0009] As an improvement to the above solution, the housing is formed with a perforation, the lifting part is slidably connected to the perforation, and the bottom surface of the lifting part is located below the housing; the size of the stop part is larger than the size of the perforation.

[0010] As an improvement to the above solution, at least one of the sidewall of the stop portion and the sidewall of the housing is formed with a first guide portion. The stop portion and the housing are slidably connected through the first guide portion. The first guide portion extends in a preset direction, which is the direction from the bottom wall of the housing to the winding shaft.

[0011] As an improvement to the above solution, the winding shaft has a first abutment surface, and the stop portion has a second abutment surface facing the wall of the winding shaft. When the curtain is fully raised, the first abutment surface and the second abutment surface come into contact.

[0012] As an improvement to the above solution, when the curtain rises, the winding shaft rotates along a first rotation direction; the outer peripheral surface of the winding shaft is formed with a first stop surface facing the same direction as the first rotation direction, and the stop portion is formed with a second stop surface facing the opposite direction to the first rotation direction.

[0013] When the travel fitting is pressed against the winding shaft, the second stop surface is located on the rotation path of the first stop surface.

[0014] As an improvement to the above solution, the outer shaft surface of the winding shaft is formed with an inclined pressing surface facing the opposite direction to the first rotation direction, and the top of the stop portion is provided with a mating boss.

[0015] When the curtain descends, the mating boss is located on the rotation path of the inclined pressure surface.

[0016] As an improvement to the above solution, the stroke fitting is provided with a counterweight, which is located between the rope winding shaft and the bottom wall of the housing;

[0017] Alternatively, the bottom wall of the housing is provided with a first magnetic attractor, and the stop portion is provided with a second magnetic attractor, wherein the adjacent magnetic poles of the first magnetic attractor and the second magnetic attractor have opposite magnetic properties.

[0018] As an improvement to the above solution, a locking limiter is slidably connected inside the housing. The locking limiter is located below the rope winding shaft. A reset member is provided between the locking limiter and the housing. One end of the window rope is wound around the fixed end of the rope winding shaft, and the other end of the window rope passes around the locking limiter and is connected to the curtain.

[0019] When the window rope is tensioned, the locking limit member is spaced apart from the rope winding shaft; when the window rope is slack, the locking limit member is pressed against the rope winding shaft by the reset member.

[0020] As an improvement to the above solution, a third abutment surface is formed on the outer peripheral surface of the winding shaft, and a fourth abutment surface is formed on the top surface of the locking and limiting member facing the winding shaft. When the window rope is slack, the third abutment surface and the fourth abutment surface come into contact.

[0021] As an improvement to the above solution, when the curtain body descends, the winding rope shaft rotates in the second rotation direction;

[0022] The locking and limiting member has a third stop surface that faces the opposite direction to the second rotation direction, and the outer peripheral surface of the rope winding shaft has a fourth stop surface that faces the same direction as the second rotation direction; when the window rope is slack, the third stop surface is located on the rotation path of the fourth stop surface.

[0023] As an improvement to the above solution, one of the sidewalls of the locking limiting member and the sidewall of the housing is formed with a second guide portion, the locking limiting member and the housing are slidably connected through the second guide portion, and the second guide portion extends in a preset direction.

[0024] As an improvement to the above solution, the locking and limiting member is formed with a mounting groove facing the bottom wall of the housing. The reset member is installed in the mounting groove, with one end of the reset member abutting against the top wall of the mounting groove and the other end of the reset member abutting against the bottom wall of the housing.

[0025] As an improvement to the above solution, the winding shaft includes a winding shaft and a page-turning wheel, the end of the winding shaft is connected to a connecting end cap, and the output shaft of the drive assembly is connected to the connecting end cap and the page-turning wheel;

[0026] One of the scroll and the connecting end cap has a rotating groove, and the other has a first locking position. The first locking position is connected to the rotating groove and can rotate and slide along the inner wall of the rotating groove. A second locking position is formed in the rotating groove, protruding from the inner wall of the rotating groove, and the second locking position is located on the rotation path of the first locking position.

[0027] Accordingly, the present invention also provides a method for raising and lowering curtains of an electrically operated sunshade window, wherein the method for raising and lowering curtains of the electrically operated sunshade window described in any of the above-mentioned methods includes the following steps:

[0028] Acquire the operating signal of the drive component and determine whether the operating signal is a rising signal or a falling signal;

[0029] Based on the rising signal, the driving component is driven to drive the winding shaft to wind the window rope, causing the curtain to close and rise.

[0030] The curtain body is positioned against the lifting portion of the travel engagement member, and the curtain body is driven to rise continuously, causing the travel engagement member to move toward the winding shaft.

[0031] When the travel mating component is secured to the winding shaft, the winding shaft stops rotating, the feedback control stops the drive assembly, and the curtain's upward movement stops.

[0032] Based on the descent signal, the drive assembly is driven to reverse the winding shaft, and the winding shaft pushes the travel engagement member downward to release the contact relationship between the travel engagement member and the winding shaft;

[0033] The travel engagement component is determined to descend, driving the winding shaft to continuously reverse in order to release the window rope, causing the curtain to unfold and descend.

[0034] Implementing this invention has the following beneficial effects:

[0035] In this embodiment of the electric sunshade window, a travel fitting is provided inside the housing of the rope winder, and the lifting part of the travel fitting is located on the rising path of the curtain. When the curtain rises and closes, the curtain can abut against the lifting part of the travel fitting and push the travel fitting towards the rope winder shaft, thereby pressing the travel fitting against the rope winder shaft and stopping the rope winder shaft from rotating.

[0036] Furthermore, the lifting part of the travel engagement component can cooperate with the rising curtain body. After the curtain body is retracted, the travel engagement component will stop the rotation of the winding shaft, limiting the curtain body's upward travel. Therefore, motorized Venetian blinds do not require microswitches or other travel limit structures, meaning there is no need to set the number of rotations of the winding shaft to limit the curtain body's upward travel, avoiding the curtain body's upward travel being affected by deviations in the number of rotations. Thus, there is no need to adaptively adjust the position of the limit structure during debugging and use, effectively shortening the debugging time of the sunshade window and improving the user experience. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the electric sunshade window in this invention;

[0038] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0039] Figure 3 This is an exploded structural diagram of the rope reel in this invention;

[0040] Figure 4 This is one of the schematic diagrams showing the positional relationship between the stroke fitting component and the rope winding shaft in this invention; wherein the stroke fitting component is not tightly pressed against the rope winding shaft;

[0041] Figure 5This is the second schematic diagram showing the positional relationship between the stroke fitting component and the rope winding shaft in this invention; wherein the stroke fitting component abuts against the rope winding shaft;

[0042] Figure 6 This is a schematic diagram of the connection structure between the stroke mating component and the housing in this invention;

[0043] Figure 7 This is one of the schematic diagrams showing the positional relationship between the rope winding shaft and the locking limiting member in this invention, wherein the locking limiting member abuts against the rope winding shaft;

[0044] Figure 8 This is the second schematic diagram showing the positional relationship between the rope winding shaft and the locking limiting member in this invention, wherein the locking limiting member is not pressed against the rope winding shaft;

[0045] Figure 9 This is a side view of the positions of the rope winding shaft and the locking limit member in this invention, wherein the locking limit member abuts against the rope winding shaft;

[0046] Figure 10 This is a three-dimensional positional diagram of the rope winding shaft and the locking limiting member in this invention, wherein the locking limiting member is in the unlocked state;

[0047] Figure 11 This is an exploded structural diagram of the spool and connecting end cap in this invention;

[0048] Figure 12 This is a schematic diagram showing the relative positions of the first and second card slots in this invention;

[0049] Figure 13 This is a flowchart of the curtain raising and lowering method for the electric sunshade window in this invention. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.

[0051] In embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the electric sunshade window includes a window frame 1, a curtain body 2, a drive assembly 3, and multiple rope winders 4. The drive assembly 3 and the rope winders 4 are disposed on the window frame 1. The rope winder 4 includes a housing 41 and a rope winding shaft 42 for winding or releasing the window rope 5. The output shaft of the drive assembly 3 is connected to the rope winding shaft 42 for transmission. The rope winder 4 is connected to the curtain body 2 through the window rope 5 so that the drive assembly 3 drives the rope winding shaft 42 to rotate, thereby completing the action of winding or releasing the window rope 5, and correspondingly driving the curtain body 2 to rise or fall.

[0052] At least one housing 41 has a travel fitting 43 inside, the travel fitting 43 having a stop portion 431 and a lifting portion 432, the stop portion 431 facing the winding shaft 42, the lifting portion 432 slidably extending out of the bottom of the housing 41, and the lifting portion 432 being located on the rising path of the curtain 2; when the curtain 2 rises, the curtain 2 abuts against the lifting portion 432, and the curtain 2 is used to push the travel fitting 43 against the winding shaft 42.

[0053] In this embodiment of the electric sunshade window, a travel fitting member 43 is provided inside the housing 41 of the rope winder 4, and the lifting part 432 of the travel fitting member 43 is provided on the rising path of the curtain body 2. When the curtain body 2 rises and closes, the curtain body 2 can abut against the lifting part 432 of the travel fitting member 43 and push the travel fitting member 43 to move towards the rope winder shaft 42, so that the travel fitting member 43 abuts against the rope winder shaft 42 and stops the rope winder shaft 42 from rotating.

[0054] Furthermore, the lifting part 432 of the travel fitting 43 can cooperate with the rising curtain 2 to stop the rotation of the winding shaft 42 after the curtain 2 has finished retracting, thus limiting the rising stroke of the curtain 2. Therefore, the electric venetian blind does not require other travel limiting structures such as microswitches, and there is no need to set the number of rotations of the winding shaft 42 to limit the rising stroke of the curtain 2, avoiding the influence of rotation deviation on the rising stroke of the curtain 2. Therefore, there is no need to adaptively adjust the position of the limiting structure during debugging and use, effectively shortening the debugging time of the sunshade and improving the user experience.

[0055] In addition, since no other travel limit structure is required, the problem of the window rope 5 becoming inaccurate due to excessive stretching caused by the misalignment of the travel limit structure can be avoided, effectively preventing the window rope 5 from breaking and improving the service life of the window rope 5.

[0056] Specifically, the working process of the motorized sunshade window in this embodiment is as follows:

[0057] When the curtain 2 needs to be retracted, the drive assembly 3 operates. The output shaft of the drive assembly 3 drives the winding shaft 42 to rotate. The winding shaft 42 winds the window rope 5, and through the window rope 5, it drives the curtain 2 to rise, thus retracting the curtain 2. During the rising process of the curtain 2, the curtain 2 abuts against the lifting part 432 of the travel engagement member 43, causing the travel engagement member 43 to move towards the winding shaft 42 and press the travel engagement member 43 against the winding shaft 42, restricting the rotation of the winding shaft 42, so that the winding shaft 42 stops winding the window rope 5 and stops the rising action of the curtain 2.

[0058] When the curtain 2 needs to be released, the drive assembly 3 drives the winding shaft 42 to reverse, and the curtain 2 is driven to descend through the window rope 5. The curtain 2 no longer abuts against the travel engagement part 43. At the same time, the winding shaft 42 presses down the travel engagement part 43, so that the travel engagement part 43 moves back to the upward path of the curtain 2 and releases contact with the winding shaft 42.

[0059] Furthermore, it should be noted that the drive assembly 3 preferably includes a drive motor, which is connected to the rope winding shaft 42 via an output shaft to drive the rope winding shaft 42 to rotate and complete the winding or releasing action of the window rope 5.

[0060] In this embodiment, to ensure that the travel fitting 43 can cooperate with the rising curtain 2, such as Figure 2 As shown, the housing 41 has a through hole 411, and the lifting part 432 is slidably connected to the through hole 411. The bottom surface of the lifting part 432 is located below the housing 41 so that the lifting part 432 can pass through the through hole 411 and move to the rising path of the curtain 2, ensuring that the curtain 2 can cooperate with the lifting part 432 when it rises, and push the lifting part 432 up to press against the winding rope shaft 42, thereby improving the convenience of the curtain 2 to apply force to the travel fitting 43.

[0061] It should be noted that, in order to ensure the stability of the fit between the travel fitting 43 and the housing 41, the size of the stop part 431 is larger than the size of the through hole 411, so as to ensure that when the travel fitting 43 is pressed down, the travel fitting 43 can move inside the housing 41 and will not move out of the housing 41 through the through hole 411, thus ensuring the stability of the fit between the travel fitting 43 and the housing 41.

[0062] As a specific example, the stop part 431 is a block formed above the stroke fitting part 43, and the lifting part 432 is a pressure bar formed below the stroke fitting part 43. The cross-section of the block and the pressure bar are both rectangular. The through hole 411 is also a square hole, and the length and width of the stop part 431 are greater than the length and width of the through hole 411.

[0063] In other examples, the cross-sectional shape of the stop 431, the lifting part 432, and the perforation 411 may also be circular or other shapes.

[0064] Furthermore, to facilitate the sliding of the travel limit member within the housing 41, so as to move it closer to or further away from the winding shaft 42, such as... Figure 2 , Figure 3 and Figure 6As shown, at least one of the sidewalls of the stop portion 431 and the housing 41 has a first guide portion 412. The stop portion 431 and the housing 41 are slidably connected by the first guide portion 412. The first guide portion 412 extends in a preset direction, wherein the preset direction is from the bottom wall of the housing 41 towards the winding shaft 42. Therefore, when the curtain 2 drives the travel fitting 43 to rise, the first guide portion 412 can guide the travel fitting 43 in the direction of movement towards the winding shaft 42, ensuring the stability of the travel fitting 43 when it moves towards or away from the winding shaft 42.

[0065] As one specific embodiment, such as Figure 2 and Figure 6 As shown, the first guide portion 412 can be a groove formed on the side wall of the housing 41. The side wall of the stop portion 431 is slidably connected to the groove. The groove extends in the vertical direction, so that the stop portion 431 can be slidably connected to the side wall of the housing 41 by the cooperation between the side wall of the stop portion 431 and the groove. At the same time, it facilitates the movement of the travel fitting 43 towards or away from the winding shaft 42 under the action of the curtain body 2.

[0066] Of course, a vertical slide can also be formed on the side wall of the stop portion 431, and the vertical slide is slidably connected to the slide groove to provide guidance for the movement of the stroke fitting part 43. The first guide portion 412 can also be a slide groove formed on the stop portion 431. In this case, a mating boss 435 is correspondingly provided on the side wall of the housing 41, and the slide groove is slidably connected to the mating boss 435 to provide guidance for the movement of the stroke fitting part 43.

[0067] In addition, it should be noted that the preset direction can be set to a vertical direction or an inclined direction, so that the travel fitting 43 is inclined and pressed against the winding shaft 42; or it can be set to a horizontal direction, so that the travel fitting 43 is horizontally pressed against the winding shaft 42. In this case, the bottom of the lifting part 432 forms an inclined tenon surface, which is located on the rising path of the curtain 2, so as to convert the rising movement of the curtain 2 into the horizontal movement of the travel fitting 43.

[0068] When the travel fitting 43 is pressed against the winding shaft 42 by the curtain body 2, in order to ensure the anti-rotation effect of the travel fitting 43 on the winding shaft 42, the travel fitting 43 can use a friction-locking method to restrict the rotation of the winding shaft 42. Specifically, such as Figure 4 and Figure 5As shown, the winding shaft 42 has a first abutment surface 421, and the stop portion 431 has a second abutment surface 433 facing the wall of the winding shaft 42. When the curtain 2 is fully raised, the first abutment surface 421 and the second abutment surface 433 come into contact. Thus, when the stop portion 431 abuts against the winding shaft 42, a frictional force that counteracts the rotational torque of the winding shaft 42 can be generated between the first abutment surface 421 and the second abutment surface 433. This achieves the restriction of the rotation of the winding shaft 42 by friction locking, stopping the winding of the window rope 5, and correspondingly stopping the rising action of the curtain 2.

[0069] Optionally, a convex ring 426 is formed on the outer periphery of the winding shaft 42, and the first abutting surface 421 is the outer circumferential surface of the convex ring 426. A clearance groove 437 is formed on the top surface of the stop portion 431, and the bottom surface of the clearance groove 437 faces the winding shaft 42, and the bottom surface of the clearance groove 437 is an arc surface. The arc surface of the clearance groove 437 has the same radius as the outer circumferential surface of the convex ring 426, so that when the travel fitting 43 abuts against the winding shaft 42, the outer circumferential arc surface of the convex ring 426 and the arc surface of the stop portion 431 form a surface contact, which enhances the friction between the winding shaft 42 and the travel fitting 43, and ensures that the travel fitting 43 can restrict the rotation of the winding shaft 42 by frictional clamping.

[0070] Furthermore, when the curtain 2 rises, the winding shaft 42 rotates in the first rotation direction. With the drive assembly 3 as a reference point, the first rotation direction is counterclockwise to complete the winding and retraction of the window rope 5. However, if the torque applied to the winding shaft 42 by the drive assembly 3 is too large, the friction between the first contact surface 421 and the second contact surface 433 may not be able to completely counteract the rotational torque of the winding shaft 42.

[0071] To further ensure the limiting effect of the stroke fitting 43 on the rotation of the rope winding shaft 42, such as Figure 4 and Figure 5 As shown, the outer peripheral surface of the winding shaft 42 has a first stop surface 422 facing the same direction as the first rotation direction, and the stop portion 431 has a second stop surface 434 facing the opposite direction to the first rotation direction. When the travel fitting 43 abuts against the winding shaft 42, the second stop surface 434 is located on the rotation path of the first stop surface 422; furthermore, when the first abutting surface 421 abuts against the second abutting surface 433, and the winding shaft 42 drives the first stop surface 422 to rotate relative to the stop portion 431, the first stop surface 422 can be rotated to abut against the second stop surface 434, so that a mechanical limiting stop is formed between the travel fitting 43 and the winding shaft 42, stopping the rotation of the winding shaft 42.

[0072] Furthermore, when the first stop surface 422 rotates and abuts against the second stop surface 434, the stroke fitting member 43 can apply a reverse force to the winding shaft 42 through the first stop surface 422 and the second stop surface 434, causing the operating current of the drive assembly 3 to increase, triggering the overload protection of the drive assembly 3, and correspondingly causing the drive assembly 3 to stop operating, so as to further ensure the anti-rotation effect of the stroke fitting member 43 on the winding shaft 42 and improve the limiting effect of the stroke fitting member 43 on the upward stroke of the curtain 2.

[0073] In one specific example, a stop protrusion 427 is formed on the side of the convex ring 426. The first stop surface 422 is the side of the stop protrusion 427 facing the travel mating member 43 when the window rope 5 is rotated. The top of the stop part 431 is provided with a mating boss 435. The second stop surface 434 is the side wall surface of the mating boss 435 facing the convex ring 426. The second stop surface 434 can be an inclined surface or a vertical surface, and the inclination angle of the second stop surface 434 can be set according to actual needs.

[0074] In this embodiment, when the curtain 2 needs to be released, to ensure that the travel fitting 43 can disengage from the winding shaft 42, such as... Figure 4 and Figure 5 As shown, the outer shaft surface of the rope winding shaft 42 is formed with an inclined pressure surface 423 facing in the opposite direction to the first rotation direction. That is, the inclined pressure surface 423 is the side of the stop protrusion 427 facing the stroke fitting member 43 when the window rope 5 is rotated. The top of the stop part 431 is provided with a mating protrusion 435. When the curtain 2 descends, the mating protrusion 435 is located on the rotation path of the inclined pressure surface 423.

[0075] Furthermore, when the curtain 2 is released again from the position of the upward stroke, the winding shaft 42 can drive the first stop surface 422 and the inclined pressure surface 423 to reverse, disengaging the first stop surface 422 from the second stop surface 434, and rotating the inclined pressure surface 423 to abut against the mating boss 435, thereby pushing the stroke limit block to move downward relative to the winding shaft 42, and disengaging the stroke mating part 43 from the winding shaft 42 to avoid the stroke mating part 43 interfering with the rotation of the winding shaft 42.

[0076] As an optional embodiment, after the travel fitting 43 disengages from the winding shaft 42, to facilitate subsequent engagement between the curtain body 2 and the travel fitting 43, the travel fitting 43 is equipped with a reset structure. This reset structure allows the lifting portion 432 of the travel fitting 43 to be moved back onto the rising path of the curtain body 2. Specifically, the reset structure can employ the following reset methods:

[0077] The first reset method, such as Figure 2 and Figure 6As shown, the travel fitting 43 is provided with a counterweight 436. The counterweight 436 is located between the winding shaft 42 and the bottom wall of the housing 41. The counterweight 436 can increase the weight of the travel fitting 43. When the curtain 2 is no longer in contact with the travel fitting 43, the travel fitting 43 will drop due to its own weight, thereby causing the lifting part 432 of the travel fitting 43 to move back to the rising path of the curtain 2, so that it can cooperate with the curtain 2 again when the curtain 2 rises in the future, thus limiting the rising stroke of the curtain 2.

[0078] In the second reset method, a first magnetic attractor (not shown in the figure) is provided on the bottom wall of the housing 41, and a second magnetic attractor (not shown in the figure) is provided on the stop part 431. The adjacent magnetic poles of the first and second magnetic attractors have opposite magnetic properties. Preferably, the first and second magnetic attractors are permanent magnets such as magnets. After the travel engagement part 43 is released from contact with the winding shaft 42, the magnetic attraction between the first and second magnetic attractors can be used to drive the curtain 2 to descend, and the lifting part 432 of the travel engagement part 43 will move back to the rising path of the curtain 2 so that it can engage with the curtain 2 again when the curtain 2 rises subsequently.

[0079] In this embodiment, the reset method of the reset structure preferably adopts the first reset method described above.

[0080] It should be noted that the reset method of the reset structure is not limited to the above-mentioned reset method. Elastic structures such as springs or other reset structures can also be used, which will not be elaborated here.

[0081] Furthermore, it should be noted that during the process of the curtain 2 descending by releasing the window rope 5 from the rope reel 42, if the descent is paused due to external factors (such as human error in supporting the bottom of the curtain 2), the rope reel 4 may continue to rotate and release the rope, increasing the slack of the window rope 5 and causing the window rope 5 to become tangled and messy.

[0082] To prevent the window rope 5 from becoming too slack when the curtain 2 descends, in this embodiment, as follows: Figure 2 , Figure 3 , Figures 7 to 10 As shown, a locking limit member 44 is slidably connected inside the housing 41. The locking limit member 44 is located below the rope winding shaft 42. A reset member 45 is provided between the locking limit member 44 and the housing 41. One end of the window rope 5 is wound around the fixed end of the rope winding shaft 42, and the other end of the window rope 5 passes around the locking limit member 44 and is connected to the curtain body 2. When the window rope 5 is tensioned, the locking limit member 44 and the rope winding shaft 42 are arranged at intervals. When the window rope 5 is slack, the locking limit member 44 is pressed against the rope winding shaft 42 through the reset member 45.

[0083] It is understandable that, such as Figure 7 and Figure 10As shown, during the retraction and normal descent of the curtain 2, the control rope tension can be maintained by the cooperation of the winding shaft 42 and the weight of the curtain 2, so that the locking limit member 44 and the winding shaft 42 are arranged at a distance, and the locking limit member 44 will not affect the action of the winding shaft 42 to release the window rope 5.

[0084] If the descent of curtain 2 is disrupted by external factors (such as curtain 2 tilting or pausing during descent), the weight of curtain 2 no longer acts on the window rope 5, and the window rope 5 begins to slacken under the rotation of the rope winding shaft 42. Figure 8 and Figure 9 As shown, at this time, the locking limit member 44 can be pushed by the reset member 45 to slide towards the rope winding shaft 42 and press against the rope winding shaft 42. Thus, the locking limit member 44 can be used to restrict the rotation of the rope winding shaft 42, so that the rope winding shaft 42 cannot continue to release the window rope 5. This effectively avoids the problem of the window rope 5 becoming tangled and messy due to increased slack, prevents the curtain 2 from getting stuck, and effectively improves the safety performance of the sunshade window during use.

[0085] Among them, such as Figure 9 and Figure 10 As shown, a third abutment surface 424 is formed on the outer peripheral surface of the winding shaft 42, and a fourth abutment surface 441 is formed on the top surface of the locking and limiting member 44 facing the winding shaft 42. When the window rope 5 is slack, the third abutment surface 424 and the fourth abutment surface 441 come into contact, thereby using the frictional force between the third abutment surface 424 and the fourth abutment surface 441 to counteract the rotational torque of the winding shaft 42, thereby limiting the rotation of the winding shaft 42 by friction locking and stopping the release of the window rope 5, so as to avoid the window rope 5 from increasing the slack due to excessive release.

[0086] Optionally, the third abutting surface 424 is an arc surface formed on the top of the locking and limiting member 44, and the fourth abutting surface 441 is the outer peripheral surface of the convex ring 426, and the top arc surface of the locking and limiting member 44 and the outer peripheral surface of the convex ring 426 have the same radius.

[0087] Similar to the travel mating part 43, the friction between the third abutment surface 424 and the fourth abutment surface 441 may not be able to completely counteract the rotational torque of the winding shaft 42. In this case, a mechanical limit stop can also be formed between the locking limit part 44 and the winding shaft 42. Specifically, as Figure 9 and Figure 10 As shown, when the curtain 2 descends, the winding rope shaft 42 rotates in the second rotation direction; the locking limit member 44 is formed with a third stop surface 442 facing the opposite direction to the second rotation direction, and the outer peripheral surface of the winding rope shaft 42 is formed with a fourth stop surface 425 facing the same direction as the second rotation direction; when the window rope 5 is slack, the third stop surface 442 is located on the rotation path of the fourth stop surface 425.

[0088] Furthermore, when the third contact surface 424 and the fourth contact surface 441 abut against each other, and the winding shaft 42 drives the fourth stop surface 425 to rotate, the third stop surface 442 can be used to stop the rotation of the fourth stop surface 425, thereby forming a mechanical limit stop between the locking limit member 44 and the winding shaft 42, thus stopping the rotation of the winding shaft 42 and releasing the window rope 5. The third stop surface 442 can also apply a reverse force to the fourth stop surface 425, increasing the operating current of the drive assembly 3, triggering the overload protection of the drive assembly 3, and improving the stopping effect of the locking limit member 44 on the winding shaft 42.

[0089] Optionally, a locking protrusion 445 is formed on the top surface of the locking limit member 44, and the third stop surface 442 is the side wall surface of the locking protrusion 445. An avoidance notch 446 is formed between the locking protrusion 445 and the third abutment surface 424. When the winding shaft 42 drives the fourth stop surface 425, the fourth stop surface 425 rotates and abuts against the third stop surface 442 through the avoidance notch 446, so as to prevent the locking limit member 44 from being pressed down when the winding shaft 42 rotates, thus ensuring the limiting effect of the locking limit member 44 on the winding shaft 42.

[0090] Among them, such as Figure 2 and Figure 3 As shown, a second guide portion 413 is formed on one of the sidewalls of the locking and limiting member 44 and the housing 41. The locking and limiting member 44 and the housing 41 are slidably connected through the second guide portion 413. The second guide portion 413 extends in a preset direction, that is, the extension direction of the second guide portion 413 is the same as the extension direction of the first guide portion 412. Therefore, when the reset member 45 moves the locking and limiting member 44 toward the winding shaft 42, or when the rope is pulled and the locking and limiting member 44 is disengaged from the winding shaft 42, the second guide portion 413 can be used to guide the movement direction of the locking and limiting member 44, ensuring the movement stability of the locking and limiting member 44 when it moves toward or away from the winding shaft 42.

[0091] As a specific example, the second guide portion 413 can be a lifting groove formed on the side wall of the housing 41, while the side wall of the locking and limiting member 44 is formed with a lifting boss 447, both of which extend vertically. The locking and limiting member 44 is slidably connected to the side wall of the housing 41 by the sliding connection between the lifting boss 447 and the lifting groove.

[0092] Of course, the guide part can also be a guide rail formed on the side wall of the housing 41, while the side wall of the locking and limiting member 44 forms a sliding groove. By using the guide rail and the sliding groove to slide, the locking and limiting member 44 is slidably connected to the side wall of the housing 41. Alternatively, the guide part can be directly slidably connected to the side wall surface of the locking and limiting member 44 to achieve the guiding function.

[0093] In addition to being set vertically, the guide portion can also be set at a certain angle to the bottom wall of the housing 41 to tilt the locking limit member 44 toward the winding shaft 42; or the guide portion can be set horizontally to horizontally abut the locking limit member 44 against the winding shaft 42. In this case, it is necessary to ensure that the height of the locking limit member 44 is consistent with the height of the winding shaft 42, and to ensure that the first stop surface 422 of the locking limit member 44 can move onto the rotation path of the first abutting surface.

[0094] Among them, such as Figure 9 and Figure 10 As shown, the locking limit member 44 has a mounting groove 443 facing the bottom wall of the housing 41. The reset member 45 is installed in the mounting groove 443, with one end of the reset member 45 abutting against the top wall of the mounting groove 443 and the other end of the reset member 45 abutting against the bottom wall of the housing 41. This allows the locking limit member 44 to cooperate with the bottom wall of the housing 41 to compress the reset member 45 when the window rope 5 is tensioned, and the reset member 45 to provide a resetting force to the locking limit member 44 to press against the winding shaft 42 when the window rope 5 is slack.

[0095] It should be noted that the reset component 45 can be one of the reset structures such as a torsion spring, a compression spring, or a magnet, and can be set according to specific requirements.

[0096] As an optional embodiment, in the field of Venetian blinds, the blind cord 5 can be divided into a pull cord for pulling the curtain body 2 up and down and a ladder cord for controlling the swing angle of the curtain body 2. The cord winding shaft 42 includes a winding shaft 428 and a flap wheel 429, wherein the winding shaft 428 is used to wind the pull cord and the flap wheel 429 is used to wind the ladder cord. In order to facilitate the adjustment of the swing angle of the curtain body 2 by means of the ladder cord, the flap wheel 429 is arranged above the cord outlet hole of the housing 41.

[0097] To ensure that when the window rope 5 is taut, the weight of the curtain 2 can act on the locking limit member 44 through the window rope 5, such as... Figure 2 , Figure 3 and Figure 10 As shown, the locking limit member 44 is located below the flip wheel 429; the locking limit member 44 has a groove 448 on the side facing the rope outlet hole, the groove 448 is rotatably connected to the steering wheel 46, and the steering wheel 46 is located above the rope outlet hole; the window rope 5 passes through the second mounting groove 443, and passes around the steering wheel 46 to connect to the curtain body 2 from the rope outlet hole.

[0098] The window rope 5 is preferably a pull rope. During the process of the roller 428 rotating to release the pull rope, the pull rope can convert the weight of the curtain 2 into pressure on the steering wheel 46 above the rope outlet hole. The steering wheel 46 then applies the pressure to the locking limit member 44, so that the locking limit member 44 can move away from the flap wheel 429. This allows the locking limit member 44 and the flap wheel 429 to be arranged at intervals, making it convenient for the pull rope to continue to be released and the curtain 2 to descend.

[0099] Furthermore, such as Figure 3 , Figure 11 and Figure 12 As shown, the end of the roller 428 is connected to a connecting end cover 4281. The output shaft of the drive assembly 3 is connected to the connecting end cover 4281 and the flap wheel 429 so that the output shaft of the drive assembly 3 can drive the connecting end cover 4281 to rotate, thereby driving the roller 428 to rotate, completing the lifting and lowering action of the curtain 2, and driving the flap wheel 429 to rotate, completing the adjustment action of the shading angle of the curtain 2.

[0100] To reduce the linkage change in the height of curtain 2 when adjusting the shading angle, such as Figure 11 and Figure 12 As shown, one of the spool 428 and the connecting end cap 4281 forms a rotating groove 4282, and the other forms a first locking position 4283. The first locking position 4283 is connected to the rotating groove 4282 and can rotate and slide along the inner wall of the rotating groove 4282. A second locking position 4284 is formed in the rotating groove 4282. The second locking position 4284 protrudes from the inner wall of the rotating groove 4282 and is located on the rotation path of the first locking position 4283.

[0101] Specifically, since the second locking position 4284 is located on the moving path of the first locking position 4283, when the drive component 3 is running, the output shaft of the drive component 3 can drive the connecting end cover 4281 to rotate, so that the first locking position 4283 rotates to abut against the second locking position 4284. By utilizing the cooperation between the first locking position 4283 and the second locking position 4284, the winding shaft 42 and the connecting end cover 4281 rotate synchronously to complete the winding or releasing action of the pull rope, which corresponds to pulling the curtain 2 up or down.

[0102] When the first locking position 4283 rotates within the rotating slot 4282 and does not abut against the second locking position 4284, the roller 428 will not rotate with the connecting end cover 4281, thus preventing the roller 428 from winding or releasing the pull rope. At this time, the rotation of the flap wheel 429 is unaffected, and the flap wheel 429 can be used to drive the ladder rope to adjust the tilt angle of the curtain 2, thereby completing the adjustment of the light-blocking angle of the curtain 2.

[0103] Furthermore, by utilizing the cooperation of the first locking position 4283 with the rotating slot 4282 and the second locking position 4284, the winding shaft 42 can be driven to rotate independently when the first locking position 4283 is not in contact with the second locking position 4284, thereby completing the dimming action of the curtain 2. When the first locking position 4283 is in contact with the second locking position 4284, the winding shaft 428 can be driven to rotate, thereby completing the lifting and lowering action of the curtain 2. This allows the dimming action and the lifting and lowering action of the curtain 2 to be performed separately, ensuring that the curtain 2 will not lift or lower when dimming in both directions, effectively reducing the impact of dimming on the lifting and lowering height of the curtain 2.

[0104] As an optional embodiment, such as Figure 11 and Figure 12 As shown, the first locking position 4283 can be a protrusion structure formed on the side of the connecting end cover 4281 facing the spool 428. The rotating groove 4282 is formed on the side of the spool 428 facing the connecting end cover 4281, and the inner wall diameter of the rotating groove 4282 is equal to the diameter of the end of the winding shaft 42, so that the first locking position 4283 extends into the rotating groove 4282 and is rotatably slidably connected with the rotating groove 4282. The second locking position 4284 is a protrusion structure protruding inward from the inner wall of the rotating groove 4282, to ensure that the second locking position 4284 can be located on the rotation path of the first locking position 4283, so that the first locking position 4283 and the second locking position 4284 can cooperate, so that the output shaft of the drive assembly 3 can drive the spool 428 to rotate through the connecting end cover 4281.

[0105] It should also be noted that the distance between the two sides of the second locking position 4284 can be adjusted according to the actual required shading angle of the curtain 2, so that when the first locking position 4283 abuts against one side, the curtain 2 rotates inward to shade, and when the second locking position 4284 abuts against the other side, the curtain 2 rotates outward to shade.

[0106] Accordingly, the present invention also provides a method for raising and lowering curtains in an electrically operated sunshade window, the method being based on the electrically operated sunshade window described in any of the above embodiments, such as... Figure 13 As shown, the curtain raising and lowering method includes the following steps:

[0107] Step S1: Obtain the operating signal of the drive component 3 and determine whether the operating signal is an upward signal or a downward signal.

[0108] It should be noted that the operation signal of the drive component 3 can be controlled by the user via external remote control, or by pressing the up or down button in the outer shell of the window frame 1.

[0109] Step S2: Based on the rising signal, drive the drive component 3 to drive the winding shaft 42 to wind the window rope 5, so that the curtain 2 is retracted and raised.

[0110] Step S3: Determine that the curtain body 2 abuts against the lifting part 432 of the travel engagement member 43, drive the curtain body 2 to rise continuously, so that the travel engagement member 43 moves toward the winding shaft 42.

[0111] It should be noted that the travel fitting 43 can sink to the bottom of the rope winder 4 housing 41 under its own weight, and the bottom lifting part 432 of the travel fitting 43 is arranged on the rising path of the curtain 2. Then, when the curtain 2 is closed and rising, the curtain 2 can push the travel fitting 43 towards the rope winding shaft 42 so that the travel fitting 43 abuts against the rope winding shaft 42.

[0112] Step S4: Determine that the travel mating part 43 is pressed against the winding rope shaft 42, the winding rope shaft 42 stops rotating, the feedback control drive component 3 stops operating, and the rising action of the curtain 2 stops.

[0113] Specifically, when the travel fitting 43 is pressed against the winding shaft 42 under the action of the curtain body 2, the first contact surface 421 of the travel fitting 43 first contacts the second contact surface 433 of the winding shaft 42, and the friction between the first contact surface 421 and the second contact surface 433 is used to rub and lock the winding shaft 42 to stop the rotation of the winding shaft 42.

[0114] When the first contact surface 421 contacts the second contact surface 433, and the winding shaft 42 still has a certain tendency to rotate, the winding shaft 42 can drive the first stop surface 422 to rotate and abut against the second stop surface 434. The first stop surface 422 and the second stop surface 434 form a mechanical limit stop between the stroke fitting component 43 and the winding shaft 42, further preventing the winding shaft 42 from rotating. Furthermore, the interaction force between the first stop surface 422 and the second stop surface 434 can increase the operating current of the drive motor to trigger the overload protection of the drive motor, further ensuring the anti-rotation effect of the stroke fitting component 43 on the winding shaft 42 and improving the limiting effect of the stroke fitting component 43 on the upward stroke of the curtain 2.

[0115] Step S5: Based on the descent signal, drive component 3 is driven to reverse the winding shaft 42. The winding shaft 42 pushes the stroke mating part 43 to descend, thereby releasing the contact relationship between the stroke mating part 43 and the winding shaft 42.

[0116] When the curtain 2 needs to be released again, by reversing the winding shaft 42, the winding shaft 42 can drive the first stop surface 422 and the inclined pressure surface 423 to reverse, disengaging the first stop surface 422 from the second stop surface 434, and rotating the inclined pressure surface 423 to abut against the mating boss 435, thereby pushing the travel limit block to move downward relative to the winding shaft 42, and disengaging the travel mating part 43 from the winding shaft 42 to avoid the travel mating part 43 interfering with the rotation of the winding shaft 42.

[0117] Step S6: Determine the descent of the stroke fitting 43, drive the winding rope shaft 42 to continuously reverse, so as to release the window rope 5, causing the curtain 2 to unfold and descend.

[0118] Therefore, the curtain raising and lowering method of the electric sunshade window in this embodiment can utilize the lifting part 432 of the travel fitting 43 to cooperate with the rising curtain body 2. After the curtain body 2 is retracted, the travel fitting 43 drives the winding rope shaft 42 to stop its rotation, thus limiting the rising stroke of the curtain body 2. As a result, the electric venetian blind does not need to be equipped with other stroke limiting structures such as microswitches, that is, it does not need to set the number of rotations of the winding rope shaft 42 to limit the rising stroke of the curtain body 2, avoiding the influence of the rotation number deviation on the rising stroke of the curtain body 2. Therefore, there is no need to make adaptive adjustments to the position of the limiting structure during debugging and use, which can effectively shorten the debugging time of the sunshade window and improve the user experience.

[0119] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An electric sunshade window, characterized in that, The device includes a window frame, a curtain body, a drive assembly, and multiple cord winders. The drive assembly and the cord winders are disposed on the window frame. Each cord winder includes a housing and a cord winding shaft for winding or releasing the window cord. The output shaft of the drive assembly is drively connected to the cord winding shaft. The cord winders are connected to the curtain body via the window cord. At least one of the housings has a travel fitting inside, the travel fitting having a stop and a lifting part, the stop facing the winding shaft, the lifting part slidably extending out of the bottom of the housing, and the lifting part being located on the rising path of the curtain; When the curtain rises, the curtain abuts against the lifting part, and the curtain is used to push the travel fitting against the winding shaft.

2. The motorized sunshade window as described in claim 1, characterized in that, The housing has a perforation, the lifting part is slidably connected to the perforation, and the bottom surface of the lifting part is located below the housing; the size of the stop part is larger than the size of the perforation.

3. The motorized sunshade window as described in claim 1, characterized in that, At least one of the sidewalls of the stop portion and the sidewall of the housing has a first guide portion formed thereon. The stop portion and the housing are slidably connected through the first guide portion. The first guide portion extends in a preset direction, which is the direction from the bottom wall of the housing to the winding shaft.

4. The motorized sunshade window as described in claim 1, characterized in that, The winding shaft has a first contact surface, and the stop portion has a second contact surface on the wall surface facing the winding shaft. When the curtain is fully raised, the first contact surface and the second contact surface come into contact.

5. The motorized sunshade window as described in claim 4, characterized in that, When the curtain rises, the winding shaft rotates in a first rotation direction; the outer peripheral surface of the winding shaft is formed with a first stop surface facing the same direction as the first rotation direction, and the stop portion is formed with a second stop surface facing the opposite direction to the first rotation direction; When the travel fitting is pressed against the winding shaft, the second stop surface is located on the rotation path of the first stop surface.

6. The motorized sunshade window as described in claim 5, characterized in that, The outer shaft surface of the winding shaft is formed with an inclined pressing surface facing the opposite direction to the first rotation direction, and the top of the stop part is provided with a mating boss. When the curtain descends, the mating boss is located on the rotation path of the inclined pressure surface.

7. The motorized sunshade window as described in claim 1, characterized in that, The stroke fitting is provided with a counterweight, which is located between the rope winding shaft and the bottom wall of the housing; Alternatively, the bottom wall of the housing is provided with a first magnetic attractor, and the stop portion is provided with a second magnetic attractor, wherein the adjacent magnetic poles of the first magnetic attractor and the second magnetic attractor have opposite magnetic properties.

8. The motorized sunshade window as described in claim 1, characterized in that, A locking limiter is slidably connected inside the housing. The locking limiter is located below the cord winding shaft. A reset member is provided between the locking limiter and the housing. One end of the window cord is wound around the fixed end of the cord winding shaft, and the other end of the window cord passes around the locking limiter and is connected to the curtain. When the window rope is tensioned, the locking limit member is spaced apart from the rope winding shaft; when the window rope is slack, the locking limit member is pressed against the rope winding shaft by the reset member.

9. The motorized sunshade window as described in claim 8, characterized in that, The outer peripheral surface of the winding shaft has a third abutment surface, and the locking and limiting member has a fourth abutment surface facing the top surface of the winding shaft. When the window rope is slack, the third abutment surface and the fourth abutment surface come into contact.

10. The motorized sunshade window as described in claim 9, characterized in that, As the curtain descends, the winding shaft rotates in the second rotation direction; The locking and limiting member has a third stop surface that faces the opposite direction to the second rotation direction, and the outer peripheral surface of the rope winding shaft has a fourth stop surface that faces the same direction as the second rotation direction; when the window rope is slack, the third stop surface is located on the rotation path of the fourth stop surface.

11. The motorized sunshade window as described in claim 8, characterized in that, One of the sidewalls of the locking and limiting member and the sidewall of the housing is formed with a second guide portion. The locking and limiting member and the housing are slidably connected through the second guide portion, which extends in a preset direction.

12. The motorized sunshade window as described in claim 8, characterized in that, The locking and limiting member has a mounting groove facing the bottom wall of the housing. The reset member is installed in the mounting groove, with one end of the reset member abutting the top wall of the mounting groove and the other end of the reset member abutting the bottom wall of the housing.

13. The motorized sunshade window as described in claim 1, characterized in that, The winding shaft includes a winding shaft and a page-turning wheel. The end of the winding shaft is connected to a connecting end cap. The output shaft of the drive assembly is connected to the connecting end cap and the page-turning wheel. One of the scroll and the connecting end cap has a rotating groove, and the other has a first locking position. The first locking position is connected to the rotating groove and can rotate and slide along the inner wall of the rotating groove. A second locking position is formed in the rotating groove, protruding from the inner wall of the rotating groove, and the second locking position is located on the rotation path of the first locking position.

14. A method for raising and lowering curtains in an electrically operated sunshade window, characterized in that, The curtain raising and lowering method of the motorized sunshade window is based on the motorized sunshade window according to any one of claims 1 to 13, and the curtain raising and lowering method includes the following steps: Acquire the operating signal of the drive component and determine whether the operating signal is a rising signal or a falling signal; Based on the rising signal, the driving component is driven to drive the winding shaft to wind the window rope, causing the curtain to close and rise. The curtain body is positioned against the lifting portion of the travel engagement member, and the curtain body is driven to rise continuously, causing the travel engagement member to move toward the winding shaft. When the travel mating component is secured to the winding shaft, the winding shaft stops rotating, the feedback control stops the drive assembly, and the curtain's upward movement stops. Based on the descent signal, the drive assembly is driven to reverse the winding shaft, and the winding shaft pushes the travel engagement member downward to release the contact relationship between the travel engagement member and the winding shaft; The travel engagement component is determined to descend, driving the winding shaft to continuously reverse in order to release the window rope, causing the curtain to unfold and descend.

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