Drive device and drive structure for sunroof

Abstract

Drive device comprising a longitudinally arranged screw A (31) and a transversely arranged turbine (32), wherein the rotation of the screw A (31) causes the corresponding rotation of the turbine (32), further comprising an electric motor (26), the rotating shaft of the electric motor (26) is designed as a screw B (261), characterized in that the upper rod end of the screw A (31) is designed as a square bar A (311), further comprising: - an electromagnet (11), the electromagnet (11) being electrically connected in series with the electric motor (26), the electromagnet (11) being continuous in the middle, an iron disc (12) being mounted on the top side of the electromagnet (11), the iron disc (12) being fixedly connected to a plunger (13), the plunger (13) passing through the middle of the electromagnet (11) and being able to move up and down together with the iron disc (12); - a movable part (21), wherein a contact surface A (212) is provided at the lower end of the movable part (21), wherein a plurality of projection teeth A (2121) are arranged on the surface of the contact surface A (212), wherein a downwardly open square hole A (211) is formed in the center of the movable part (21), wherein the square rod A (311) can be inserted precisely into the square hole A (211), wherein the upper end of the movable part (21) presses against the lower end of the plunger (13); - a gear disc (22), wherein the outer side of the gear disc (22) is designed as a gear, the upper side is designed as a contact surface B (221), wherein a plurality of projection teeth B (2211) are arranged on the surface of the contact surface B (221), and in the center of the contact surface B (221) a through hole (222) is provided through which the shaft of the worm B (261) can be passed; - a double gear (25), the double gear (25) being provided at the top and bottom with an upper gear (251) and a lower gear (252), the upper gear (251) being in engagement with the worm B (261); - a gear set (24), the gear set (24) being in engagement with the sub-gear (252) and the gear disc (22) in order to realize the transmission of the driving force of the electric motor (26); - a spring (23), the lower end of the spring (23) being in contact with the gear disc (22) and the upper end being in contact with the movable part (21); - wherein in the standard state, the movable part (21) moves away from the gear disc (22) under the elastic support of the spring (23) and the iron disc (12) moves synchronously away from the electromagnet (11), the projection tooth B (2211) does not hinder the movement of the projection tooth A (2121), and the worm A (31) is manually rotated to provide driving force for the rotation of the turbine (32);when the power supply is switched on, the electromagnet (11) and the electric motor (26) operate synchronously, the electromagnet (11) generates a magnetic force which attracts the iron disc (12) and pushes the plunger (13) downwards, thereby pushing the movable part (21) downwards and compressing the spring (23) so that the projection tooth A (2121) meshes with the projection tooth B (2211), the electric motor (26) rotates the gear disc (22), the movable part (21) and the worm A (31) and drives them sequentially via the double gear (25) and the gear set (24), which ultimately drives the turbine (32) to provide driving power; after the power supply is switched off, the driving device returns to the standard state.;

Description

Technical area

[0001] This application relates to the field of leisure products, in particular a drive device and drive structure for sunroofs. State of the art

[0002] Currently, sunroofs are widely used in outdoor recreation. Opening and closing the sunroof requires a drive device that provides power. Chinese Patent Application No. CN218176784U provides a drive device for opening and closing a sunroof. The drive device consists of a direction sensor composed of a worm gear and a turbine, and a hand crank that can be detachably connected to the direction sensor. The turbine is connected to the rotating shaft, and the rotation of the turbine results in a corresponding rotation of the rotating shaft.

[0003] However, this drive device can only realize power transmission by manually rotating the screw, which is not only a one-sided power source and has low transmission efficiency, but also requires a relatively large force when used, which makes the operation inconvenient. Contents of the present invention

[0004] In view of the deficiencies in the existing technology, the objects of this application are to provide a driving device and a driving structure for sunroof with high transmission efficiency and easy handling.

[0005] The above-mentioned technical problems of this application are achieved by the following technical solutions: A drive device comprising a longitudinally arranged screw A and a transversely arranged turbine, wherein the rotation of the screw A causes the corresponding rotation of the turbine, further comprising an electric motor, the rotating shaft of the electric motor is designed as a screw B, the upper rod end of the screw A is designed as a square rod A, further comprising: an electromagnet, wherein the electromagnet is electrically connected in series with the electric motor, wherein the electromagnet is continuous in the middle, wherein an iron disc is attached to the top of the electromagnet, wherein the iron disc is fixedly connected to a plunger, wherein the plunger passes through the center of the electromagnet and can move up and down together with the iron disc;a movable part, wherein a contact surface A is provided at the lower end of the movable part, wherein a plurality of projection teeth A are arranged on the surface of the contact surface A, wherein a downwardly open square hole A is formed in the center of the movable part, wherein the square rod A can be precisely inserted into the square hole A, wherein the upper end of the movable part presses against the lower end of the plunger; a gear disc, wherein the outer side of the gear disc is designed as a gear, the upper side is designed as a contact surface B, wherein a plurality of projection teeth B are arranged on the surface of the contact surface B, and a through hole is provided in the center of the contact surface B through which the shaft of the worm B can pass; a double gear, wherein the double gear is provided at the top and bottom with an upper gear and a lower gear, wherein the upper gear is in engagement with the worm B;a gear set, the gear set meshing with the sub-gear and the gear disc, respectively, to realize the transmission of the driving force of the electric motor; a spring, the lower end of the spring abutting the gear disc and the upper end abutting the movable part; wherein, in the standard state, the movable part moves away from the gear disc under the elastic support of the spring, and the iron disc moves synchronously away from the electromagnet, the protrusion tooth B does not hinder the movement of the protrusion tooth A, and the worm A is manually rotated to provide driving force for the rotation of the turbine;When the power is turned on, the electromagnet and the electric motor work synchronously, the electromagnet generates a magnetic force that attracts the iron disc and pushes the plunger downwards, thereby pushing the movable part downwards and compressing the spring, so that the projection tooth A meshes with the projection tooth B, the electric motor rotates the gear disc, the movable part and the worm A and drives them sequentially via the double gear and the gear set, which ultimately drives the turbine to provide driving power; after the power is turned off, the driving device returns to the standard state.

[0006] Furthermore, the projection tooth A and the projection tooth B are each block-shaped elevations with a flat top, wherein after the boundary of the projection tooth A and the projection tooth B, the projection tooth A abuts the contact surface B or the projection tooth B abuts the contact surface A, or the projection tooth A and the projection tooth B abut the contact surface B and the contact surface A at the same time.

[0007] Furthermore, the projection tooth A is a sawblade-like element arranged in a ring shape on the surface of the contact surface A and having a plurality of downwardly projecting gears, the projection tooth B is a sawblade-like element arranged in a ring shape on the surface of the contact surface B and having a plurality of upwardly projecting gears, wherein the projection tooth A and the projection tooth B are arranged above and below each other, and the projection tooth A and the projection tooth B can mesh with each other after relative movement to form a boundary.

[0008] It further comprises a cover, a base and a bottom cover, wherein the cover and the bottom cover are connected to the base at the upper and lower ends by means of screws or rivets, respectively, wherein the electromagnet is fixedly attached to the inside or the outside of the upper part of the cover, wherein the movable part, the gear disc, the spring, the gear set, the double gear and the electric motor are all arranged in the closed space between the cover and the base, wherein the turbine and the screw A are mounted on the bottom cover, wherein the lower end of the screw A protrudes to connect external components, and wherein a square hole B connected to the outside world is provided in the center of the turbine.

[0009] Furthermore, a step is provided on the inner ring of the through hole which is lower than the contact surface B, with the lower end of the spring pressing against the step.

[0010] Furthermore, the gear set is a reduction gear to achieve greater torque, with both the turbine and the upper gear having helical teeth.

[0011] Furthermore, the device comprises a hand crank, wherein the hand crank can be connected to the screw B, and that a limiting head is attached to the lower end of the plunger, the diameter of the limiting head being larger than the hole diameter in the central part of the electromagnet.

[0012] A drive structure for a sunroof using the drive device, comprising: a cross member and a longitudinal member, which are vertically connected to each other, wherein the drive device is mounted on the cross member; a fastening element that is mounted on the longitudinal member, wherein the fastening element is provided with a fixing axis, further comprising a rotating shaft parallel to the cross member, wherein one end of the rotating shaft is designed as a square bar B that can be inserted into the square hole B, and the other end is mounted on the fixing axis, wherein a rotating bar is arranged on an end of the rotating shaft facing the longitudinal member and is fixed vertically, wherein a moving bar is movably connected to the end of the rotating bar, wherein the other end of the moving bar is movably connected to a series switching bar, wherein the series switching bar runs parallel to the longitudinal member;Sun louvers and connecting pieces, several groups of sun louvers and connecting pieces are arranged one after the other and form the roof of a sunroof, the connecting piece is Z-shaped, a connecting hole A is provided in the upper part of the main body of the connecting piece, a connecting hole B is provided at the end, the connecting hole A is movably connected to the longitudinal member by means of screws, the connecting hole B is movably connected to the series switching bar by means of screws; wherein the rotation of the turbine drives the rotating shaft and the rotating bar in sequence to rotate, and the moving bar moves the series switching bar and the connecting hole B forward and backward, so that the connecting piece rotates around the connecting hole A and drives the rotating movement to open and close the sun louvers.

[0013] Furthermore, a stop pin is arranged on the fastening element, which runs parallel to the fixing axis, whereby the stop pin is arranged on the side facing away from the cross member, and the rotating bar rotates downwards until it comes to a stop at the stop pin.

[0014] Furthermore, a mounting area is arranged at the rear end of the upper part of the connecting piece, wherein the mounting area is designed as a protruding polygonal shape, and an upwardly directed mounting hole is arranged at the front end of the upper part of the connecting piece, wherein the sun louvre comprises a main body arranged in the center, wherein a mounting groove is formed at the rear end of the main body, the mounting area is arranged in the mounting groove to limit its position, the main body receives the upper part of the connecting piece and is firmly connected to the mounting hole by means of screws or rivets, wherein the sun louvre is provided with a covering edge on the front side of the main body and with a drainage channel on the rear side; a covering edge of one of the sun louvers rests against the rear wall of the drainage channel of the front-adjacent sun louvers, the sun roof drive structure stops moving, the sun roof closes; the sun louvers rotate, a covering edge of one of the sun louvers is removed from the rear wall of the drainage channel of the front-adjacent sun louvers, the sun roof opens.

[0015] In summary, the advantageous effects of this application compared to the prior art are: By separating and connecting the movable part with the gear disc, the synchronous action of the electromagnet and the electric motor allows the drive device to drive the screw A electrically or manually to cause the rotation of the turbine to provide energy. The use of two drive types offers flexible selection options and, thanks to the electric drive method, enables time and effort savings as well as increased conveying efficiency. Brief description of the characters Fig. 1 is a schematic diagram of the overall structure of the embodiment; Fig. 2 is a schematic exploded view of the embodiment; Fig. 3 is a schematic diagram of the power transmission structure of the embodiment; Fig. 4 is a schematic structural diagram of screw A and turbine; Fig. Figure 5 is a schematic representation of the combination of iron disc, plunger, electromagnet and moving part; Fig. 6 is a schematic exploded view of iron disc, plunger, electromagnet and moving part; Fig. 7 is a first schematic exploded view of the movable part and the gear disc in the first embodiment with the worm A; Fig. Fig. 8 is a second schematic exploded view of the movable part and the gear disc in the first embodiment with the worm A; Fig. 9 is a schematic structural diagram of the gear disk in the first embodiment; Fig. 10 is a schematic sectional view of a part of the embodiment; Fig. 11 is a schematic diagram of the connection structure between the hand crank and the worm A; Fig. 12 is a schematic partial enlargement of the roof drive structure; Fig. 13 is a schematic partial enlargement of the drive structure in the closed state of the roof; Fig. 14 is a schematic partial enlargement of the drive structure in the partially opened state of the roof; Fig. 15 is a schematic partial enlargement of the drive structure in the fully open state of the roof; Fig. 16 is a schematic representation of the drive structure components in a disassembled state; Fig. 17 is a schematic structural representation of the solar lamellae; Fig. 18 is a schematic structural diagram of the connector; Fig. 19 is a schematic diagram of the connection structure between the connector and the sun louver; Fig. 20 is a first exploded and partially enlarged schematic view of the second embodiment of the movable member and the gear disk; Fig. 21 is a second exploded and partially enlarged schematic view of the second embodiment of the movable member and the gear disk; Fig. 22 is a vertical correspondence view of the second embodiment of protrusion tooth A and protrusion tooth B; Fig. 23 is an overall structural diagram of the electromagnet arranged inside the cover; Fig. 24 is a sectional view of the structure of the electromagnet arranged inside the cover. Detailed embodiments

[0016] In the description of this application, it should be noted that the terms "top," "bottom," "inside," "outside," "front," "back," etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are used only to simplify the description of this application. They do not indicate or imply that the designated device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting this application.

[0017] This application is explained in more detail below in conjunction with the drawings: A drive device, as in the Fig. 1 to 19 uses the same worm wheel-worm structure (the turbine 32 and the worm A31 of this technical solution) as in the existing Chinese patent CN218176784U, which ensures that the power transmission is only from the worm to the turbine and cannot be transmitted in the opposite direction, that is, a self-locking effect. In contrast, the upper rod end of the worm A31 is designed as a square bar A311. An electric motor 26 is also provided, the rotating shaft of which is designed as a worm B261. The square bar A311 cooperates with other components to realize the coupling and disconnection between the structure of the turbine 32 with the worm A31 and the electric motor 26.The electromagnet 11 and the electric motor 26 are electrically connected in series, meaning that when the power supply is switched on, both start simultaneously, and when the power supply is switched off, both stop simultaneously. The electromagnet 11 is continuous in the middle. forms a through channel Y, as in Fig. 6. Attached to the top of the electromagnet 11 is an iron disc 12, which is rigidly connected to a plunger 13. The plunger 13 penetrates the through-channel Y and moves up and down together with the iron disc 12. After switching on, the electromagnet 11 generates a magnetic field that can magnetically attract the iron disc 12 to its top. During this process, the plunger 13 moves downward together with the iron disc.The upper end of the movable part 21 rests against the lower end of the plunger 13, in the middle part of the movable part 21 there is a downwardly open square hole A211, the square bar A311 can be accurately inserted into the square hole A211, the rotation of the square bar A311 leads to the rotation of the square hole A211 under a limiting effect, which ultimately leads to the rotation of the movable part 21, preferably both the square bar A311 and the square hole A211 are square, at the lower end of the movable part 21 there is a contact surface A212, on the surface of the contact surface A212 there is a projection tooth A2121.The outer surface of the gear disc 22 is formed as a gear, the upper surface is formed as a contact surface B221. A protrusion tooth B2211 is mounted on the surface of the contact surface B221. In the center of the contact surface B221, there is a through hole 222 through which the cylindrical body of the worm B261 can pass. After the contact of the protrusion tooth A 2121 and the protrusion tooth B 2211, the movable part 21 rotates, causing the gear disc 22 to rotate.

[0018] As in Fig. 6 to Fig. 9, in one embodiment, the projection tooth A2121 and the projection tooth B2211 are each formed as block-shaped protrusions with a flat top. Since these block-shaped protrusions extend in the horizontal direction, even a small number may be sufficient to achieve a mutual limiting effect. Generally, two, four, or six groups are sufficient to ensure synchronous movement after the limit. This arrangement is structurally simple, but due to the certain distance between the individual protrusions, the movable part 21 may run slightly idle before the projection tooth A2121 abuts the projection tooth B2211 and reaches the limit.If the machining precision of the workpiece is not required to be high, after the limitation by the protrusion tooth A2121 and the protrusion tooth B2211, the protrusion tooth A2121 can be in contact with the contact surface B221, or the protrusion tooth B2211 can be in contact with the contact surface A212. That is, it is sufficient for the protrusion tooth of one surface to be in contact with the other surface. If the machining precision of the workpiece needs to be higher, the protrusion tooth A2121 and the protrusion tooth B2211 can be set to simultaneously contact the contact surface B221 and the contact surface A212 to form a limitation.

[0019] As in Fig. 20 to Fig. 22, in a further embodiment, the projection tooth A2121 is designed as a ring-shaped, sawtooth-shaped element arranged on the surface of the contact surface A212 with several downwardly projecting gears (position P in Fig. 20), wherein the gear P is a conventional gear. The projection tooth B2211 is designed as an annular, sawtooth-shaped element arranged on the surface of the contact surface B221 with a plurality of upwardly projecting gears (position Q in Fig. 21), wherein the gear Q is a conventional gear. As shown by the vertical lines M and N in Fig. 22, the protrusion tooth A2121 and the protrusion tooth B2211 are arranged at the top and bottom, respectively, to ensure that the protrusion tooth A2121 and the protrusion tooth B2211 can mesh with each other after relative movement and form a limit. The circular, sawtooth-like arrangement of the protrusion tooth A2121 and the protrusion tooth B2211 can prevent the movable part 21 from running idle and enables rapid engagement limitation when the movable part 21 approaches the gear disc 22. Preferably, at least one of the circular areas in which the protrusion tooth A2121 and the protrusion tooth B2211 are respectively located is located on the maximum circumference of the contact surface A212 or the contact surface B221. As shown in Fig. As shown in Figure 22, the projection tooth A2121 is distributed in a ring shape over the maximum circumference of the contact surface A212, which enables the largest possible engagement surface and thus an optimal limiting effect.

[0020] As in Fig. As shown in Figure 3, the double gear 25 is provided at the top and bottom with an upper gear 251 and a lower gear 252. The upper gear 251 meshes with the worm B261, and the gear set 24 meshes with the lower gear 252 and the gear disc 22, respectively, to realize the power transmission of the electric motor 26. The gear set 24 can consist either of several identical individual gears that only transmit power, or of a reduction gear that generates a higher torque, i.e., the transmission occurs from a large gear to a small gear or alternates between large and small gears. The spring 23 is supported at the bottom on the gear disc 22 and at the top on the movable part 21.

[0021] In the default state, the spring 23 is in a naturally relaxed elastic state, and the movable part 21 is kept away from the gear disc 22 by the spring force of the spring 23. The movable part 21 pushes the plunger 13 upward, so that the iron disc 12 is kept away from the electromagnet 11. In this state, the protrusion tooth B2211 does not hinder the movement of the protrusion tooth A2121, that is, the drive device is in manual mode. By manually rotating the worm gear A31, driving force is provided to drive the turbine 32, whose rotation can in turn provide driving force to the outside. After the power is turned on, the drive device is in electric mode. The electromagnet 11 and the electric motor 26 operate synchronously.The electromagnet 11 generates a magnetic force that attracts the iron disc 12 and pushes the plunger 13 downward, causing the movable part 21 to compress the spring 23 and mesh the protrusion tooth A2121 with the protrusion tooth B2211. The electric motor 26, through the double gear 25 and the gear set 24, sequentially drives the gear disc 22, the movable part 21, and the worm A31, ultimately driving the turbine 32 to provide driving power. After the power is turned off, the driving device returns to the standard state. It should be noted that due to the self-locking effect of the worm gear structure, power transmission from the turbine to the worm cannot be realized, that is, reverse rotation is not possible.Specifically, in manual mode, worm A 31 and turbine 32 are self-locking; in electric mode, both worm A 31 and turbine 32, as well as worm B 261 and upper gear 251, are doubly self-locking. Of course, by rotating worm A 31 or worm B 261 forward or backward, a corresponding forward or reverse rotation of turbine 32 or upper gear 251 can be achieved.

[0022] To place the spring 23 securely, as shown in Fig. 9, a step 223 is arranged in the through hole 222 in an annular manner, which is lower than the contact surface B221, the lower end of the spring 23 resting against the step 223.

[0023] In order to further reduce wear and increase the load capacity and efficiency of the drive, as described in Fig. 3, the gears of the turbine 32 and the upper gear 251 are designed with helical teeth.

[0024] To prevent the plunger 13 from coming out of the passage Y during the upward movement, as shown in Fig. 6 and Fig. 10, a limiting head 131 is attached to the lower end of the plunger 13, the diameter of which is larger than the diameter of the through-channel Y.

[0025] In manual mode, a hand crank 4 can be provided for manual operation to facilitate operation. The hand crank 4 can be connected to the auger B261 and set it in rotation. The hand crank 4 can be designed as a universal rotating bar and can be connected to the auger B261 by means of screws, rivets, welding, or other common methods. The hand crank 4 can also be Fig. 11, be designed as a main rod 44 with a curved end, wherein a hook 41 is attached to the upper end of the main rod 44, a crank handle A 42 is attached to the end of the main rod 44, and a crank handle B 43 is attached to the middle part of the main rod 44. The main rod 44 is rotatably connected to the crank handle A 42 and the crank handle B 43. At the lower end of the worm A31, a suspension ring 312 is attached, onto which the hook 41 can be hooked. During use, one hand holds the crank handle A 42 and the other hand holds the crank handle B 43. By turning the crank handle A 42, the hook 41 moves the suspension ring 312, causing the worm A31 to rotate. When not in use, the hand crank 4 can be removed from the suspension ring 312.

[0026] To realize the optimal assembly method of the drive device, a housing may also be constructed to adequately accommodate the components of the drive device. The housing comprises, from top to bottom, a cover 1, a base 2, and a bottom cover 3. The cover 1 and the bottom cover 3 are connected to the base 2 at the upper and lower ends by screws or rivets, respectively, as shown in Fig. 1 and Fig. 2. The electromagnet 11 can be firmly attached to the outside of the cover 1, that is, the bottom of the electromagnet 11 is attached to the top of the cover 1. In this way, the size of the electromagnet 11 is not limited by the size of the cover 1. For example, if a stronger magnetic attraction force is required and a larger volume electromagnet 11 must be used, the cover 1 does not need to be modified; the electromagnet 11 can simply be replaced on top of the cover 1. As shown in Fig. 23 and Fig. 24, the electromagnet 11 can also be fixedly mounted on the inside of the cover 1, that is, the top of the electromagnet 11 is fixed to the top of the cover 1, so that if the volume of the electromagnet 11 can be accommodated inside the cover 1, it will result in a better appearance and take up less space; the movable part 21, the gear disc 22, the spring 23, the gear set 24, the double gear 25 and the electric motor 26 are all arranged in the closed space between the cover 1 and the base 2, the turbine 32 and the worm A31 are mounted on the bottom cover 3, the lower end of the worm A31 protrudes for connecting external components, and a square hole B321 connected to the outside world is arranged in the center of the turbine 32.

[0027] As in Fig. 12, the sunroof driving structure using the aforementioned driving device comprises: a cross member 91 and a longitudinal member 92 vertically connected to each other, the driving device being mounted on the cross member 91;a fastening element 61 which is fastened to the longitudinal member 92, the fastening element 61 being provided with a fixing axis 611, further comprising a rotating shaft 51 parallel to the cross member 91, one end of the rotating shaft 51 being designed as a square bar B511 which can be inserted into the square hole B321, and the other end being placed on the fixing axis 611, a rotating bar 52 being arranged on an end of the rotating shaft 51 facing the longitudinal member 92, a moving bar 53 being movably connected to the end of the rotating bar 52, the other end of the moving bar 53 being movably connected to a series switching bar 54, the series switching bar 54 running parallel to the longitudinal member 92;Sun louvers 8 and connecting pieces 7, several groups of sun louvers 8 and connecting pieces 7 are arranged one after the other and form the roof of the sunroof, the connecting piece 7 is Z-shaped, in the upper part of the connecting piece 7 there is a connecting hole A71, at the end there is a connecting hole B72, the connecting hole A71 is movably connected to the longitudinal member 92 by screws, the connecting hole B72 is movably connected to the series switching bar 54 by screws; wherein the rotation of the turbine 32 drives the rotating shaft 51 and the rotating bar 52 sequentially to rotate, and the moving bar 53, the series switching bar 54 and the connecting hole B72 move forward and backward, so that the connecting piece 7 rotates around the connecting hole A71 and drives the rotary movement to open and close the sun louvers 8.

[0028] As in Fig. 17-19, a mounting portion 73 is arranged at the upper rear end of the connecting piece 7, wherein the mounting portion 73 is designed as a protruding polygonal shape. An upwardly directed mounting hole 74 is arranged at the upper front end of the connecting piece 7. The sun louver 8 comprises a main body 81 arranged in the center, wherein a mounting groove 84 is arranged at the rear end of the main body 81. The mounting portion 73 is positionally limited in the mounting groove 84. The main body 81 receives the upper end of the connecting piece 7 and is firmly connected to the mounting hole 74 by screws or rivets.The sunshade 8 has a covering edge 82 on the front side of the main body 81 and a drainage channel 83 on the rear side; the covering edge 82 of a sunshade 8 is supported on the rear wall of the drainage channel 83 of the front adjacent sunshade 8, the sunroof driving structure stops moving, and the roof of the sunroof closes; the sunshade 8 rotates, a covering edge 82 of the sunshade 8 separates from the rear wall part of the drainage channel 83 of the front adjacent sunshade 8, and the sunroof opens.

[0029] In order to be able to limit the range of movement of the rotary shaft 51, as shown in Fig. 16, a stop pin 612 is mounted on the fastening element 61 parallel to the fixing axis 611. The stop pin 612 is mounted on the side facing away from the cross member 91, so that the rotating bar 52 rotates downwards until it comes to a stop at the stop pin 612.

[0030] As in Fig. 13, the rotating bar 52 is in the rearmost position when the sun louvre 8 is closed, with a covering edge 82 of a sun louvre 8 resting against the rear wall of the drainage channel 83 of the sun louvres 8 adjacent to the front;

[0031] As in Fig. As shown in Figure 14, when the sun louver 8 begins to open, the rotating bar 52 rotates forward from its rear end and pushes the connecting piece 7, which rotates around the axis of the connecting hole A71. A cover edge 82 of one sun louver 8 gradually separates from the rear wall of the drainage channel 83 of the adjacent sun louver 8 at the front. Due to the self-locking action of the turbine worm, the connecting piece 7 immediately stops rotating when the driving force disappears, and the sun louver 8 is fixed at a certain angle. Preferably, the rotation angle of the sun louver 8 is 90 degrees.

[0032] As in Fig. As shown in Figure 14, the sun louver 8 is in the fully open state when rotated 90 degrees. At this point, the movement stops when the rotating bar 52 abuts the stop pin 612.

[0033] From the above description, it can be seen that the above-mentioned embodiment achieves the following technical effects: Under the synchronous action of the electromagnet and the electric motor, it can switch between the electric mode and the manual mode. The power source for the auger A is diverse, the use is convenient, and the transmission efficiency is high.

[0034] The above merely represents exemplary embodiments of this application and is not intended to limit the scope of this application. The scope of this application is determined by the appended claims. List of reference symbols

[0035] 1, cover; 11, electromagnet; 12, iron disc; 13, plunger; 131, limit head; 2, base; 21, moving part; 211, square hole A; 212, contact surface A; 2121, projection tooth A; 22, gear disc; 221, contact surface B; 2211, projection tooth B; 222, through hole; 223, step; 23, spring; 24, gear set; 25, double gear; 251, upper gear; 252, lower gear; 26, electric motor; 261, worm B; 3, bottom cover; 31, worm A; 311, square rod A; 312, hanging ring; 32, turbine; 321, square hole B; 4, hand crank; 41, hook; 42, Crank handle A; 43, Crank handle B; 44, Main rod; 51, Rotating shaft; 511, Square rod B; 52, Rotating bar; 53, Moving bar; 54, Series switching bar; 61, Fastening element; 611, Fixing axis; 612, Stop pin; 7, Connecting piece; 71, Connecting hole A; 72, Connecting hole B; 73, Mounting area; 74, Mounting hole; 8, Sun louver; 81, Main body; 82, Cover edge; 83, Drain channel; 84, Mounting groove; 91, Cross member; 92, Longitudinal member QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 218176784U [0002, 0017]

Claims

[1] Drive device comprising a longitudinally arranged screw A (31) and a transversely arranged turbine (32), wherein the rotation of the screw A (31) causes the corresponding rotation of the turbine (32), further comprising an electric motor (26), the rotating shaft of the electric motor (26) is designed as a screw B (261), characterized by that the upper rod end of the screw A (31) is designed as a square rod A (311), further comprising: - an electromagnet (11), the electromagnet (11) being electrically connected in series with the electric motor (26), the electromagnet (11) being continuous in the middle, an iron disc (12) being mounted on the top side of the electromagnet (11), the iron disc (12) being fixedly connected to a plunger (13), the plunger (13) passing through the middle of the electromagnet (11) and being able to move up and down together with the iron disc (12); - a movable part (21), wherein a contact surface A (212) is provided at the lower end of the movable part (21), wherein a plurality of projection teeth A (2121) are arranged on the surface of the contact surface A (212), wherein a downwardly open square hole A (211) is formed in the center of the movable part (21), wherein the square rod A (311) can be inserted precisely into the square hole A (211), wherein the upper end of the movable part (21) presses against the lower end of the plunger (13); - a gear disc (22), wherein the outer side of the gear disc (22) is designed as a gear, the upper side is designed as a contact surface B (221), wherein a plurality of projection teeth B (2211) are arranged on the surface of the contact surface B (221), and in the center of the contact surface B (221) a through hole (222) is provided through which the shaft of the worm B (261) can be passed; - a double gear (25), the double gear (25) being provided at the top and bottom with an upper gear (251) and a lower gear (252), the upper gear (251) being in engagement with the worm B (261); - a gear set (24), the gear set (24) being in engagement with the sub-gear (252) and the gear disc (22) in order to realize the transmission of the driving force of the electric motor (26); - a spring (23), the lower end of the spring (23) being in contact with the gear disc (22) and the upper end being in contact with the movable part (21); - wherein in the standard state, the movable part (21) moves away from the gear disc (22) under the elastic support of the spring (23) and the iron disc (12) moves synchronously away from the electromagnet (11), the projection tooth B (2211) does not hinder the movement of the projection tooth A (2121), and the worm A (31) is manually rotated to provide driving force for the rotation of the turbine (32);when the power supply is switched on, the electromagnet (11) and the electric motor (26) operate synchronously, the electromagnet (11) generates a magnetic force which attracts the iron disc (12) and pushes the plunger (13) downwards, thereby pushing the movable part (21) downwards and compressing the spring (23) so that the projection tooth A (2121) meshes with the projection tooth B (2211), the electric motor (26) rotates the gear disc (22), the movable part (21) and the worm A (31) and drives them sequentially via the double gear (25) and the gear set (24), which ultimately drives the turbine (32) to provide driving power; after the power supply is switched off, the driving device returns to the standard state.; [2] Drive device according to claim 1, characterized bythat the projection tooth A (2121) and the projection tooth B (2211) are each block-shaped elevations with a flat upper side, wherein after the delimitation of the projection tooth A (2121) and the projection tooth B (2211), the projection tooth A (2121) bears against the contact surface B (221) or the projection tooth B (2211) bears against the contact surface A (212), or the projection tooth A (2121) and the projection tooth B (2211) bear simultaneously against the contact surface B (221) and the contact surface A (212). [3] Drive device according to claim 1, characterized bythat the projection tooth A (2121) is a sawblade-like element arranged in a ring shape on the surface of the contact surface A (212) and having a plurality of downwardly projecting gears, the projection tooth B (2211) is a sawblade-like element arranged in a ring shape on the surface of the contact surface B (221) and having a plurality of upwardly projecting gears, wherein the projection tooth A (2121) and the projection tooth B (2211) are arranged above and below each other, and the projection tooth A (2121) and the projection tooth B (2211) can mesh with each other after relative movement to form a boundary. [4] Drive device according to claim 2 or 3, characterized bythat further comprises a cover (1), a base (2) and a bottom cover (3), wherein the cover (1) and the bottom cover (3) are connected to the base (2) at the upper and lower ends by means of screws or rivets, respectively, wherein the electromagnet (11) is fixedly attached to the inside or the outside of the upper part of the cover (1), wherein the movable part (21), the gear disc (22), the spring (23), the gear set (24), the double gear (25) and the electric motor (26) are all arranged in the closed space between the cover (1) and the base (2), wherein the turbine (32) and the screw A (31) are mounted on the bottom cover (3), wherein the lower end of the screw A (31) protrudes for connecting external components, and wherein a square hole B (321) connected to the outside world is provided in the center of the turbine (32). [5] Drive device according to claim 4, characterized bythat a step (223) is provided on the inner ring of the through-bore (222) which is lower than the contact surface B (221), the lower end of the spring (23) pressing against the step (223). [6] Drive device according to claim 5, characterized by that the gear set (24) is a reduction gear in order to achieve a greater torque, wherein both the turbine (32) and the upper gear (251) are provided with helical teeth. [7] Drive device according to claim 6, characterized by that further comprises a hand crank (4), wherein the hand crank (4) can be connected to the worm B (261), and that a limiting head (131) is attached to the lower end of the plunger (13), the diameter of the limiting head (131) being larger than the hole diameter in the central part of the electromagnet (11). [8] Driving structure for sunroof using the driving device according to claim 7, characterized by that comprehensive - a cross member (91) and a longitudinal member (92) which are vertically connected to one another, the drive device being mounted on the cross member (91); - a fastening element (61) which is fastened to the longitudinal member (92), the fastening element (61) being provided with a fixing axis (611), further comprising a rotating shaft (51) parallel to the cross member (91), one end of the rotating shaft (51) being designed as a square bar B (511) which can be inserted into the square hole B (321), and the other end being placed on the fixing axis (611), a rotating bar (52) being arranged on an end of the rotating shaft (51) facing the longitudinal member (92) and being fastened vertically, a moving bar (53) being movably connected to the end of the rotating bar (52), the other end of the moving bar (53) being movably connected to a series switching bar (54), the series switching bar (54) running parallel to the longitudinal member (92); - sun slats (8) and connecting pieces (7), several groups of sun slats (8) and connecting pieces (7) are arranged one after the other and form the roof of a sun roof, the connecting piece (7) is Z-shaped, a connecting hole A (71) is provided in the upper part of the main body of the connecting piece (7), a connecting hole B (72) is provided at the end, the connecting hole A (71) is movably connected to the longitudinal member (92) by means of screws, the connecting hole B (72) is movably connected to the series connection strip (54) by means of screws; - wherein the rotation of the turbine (32) drives the rotary shaft (51) and the rotary bar (52) to rotate one after the other, and moves the moving bar (53), the series switching bar (54) and the connecting hole B (72) forward and backward, so that the connecting piece (7) rotates around the connecting hole A (71) and drives the rotary movement for opening and closing the sun louvers (8). [9] Drive structure for sunroof according to claim 8, characterized by that a stop pin (612) is arranged on the fastening element (61) and runs parallel to the fixing axis (611), the stop pin (612) being arranged on the side facing away from the cross member (91), and the rotating bar (52) rotates downwards until it comes to a standstill on the stop pin (612). [10] Drive structure for sunroof according to claim 8, characterized by , that - a mounting area (73) is arranged at the rear end of the upper part of the connecting piece (7), wherein the mounting area (73) is designed as a protruding polygonal shape, and an upwardly directed mounting hole (74) is arranged at the front end of the upper part of the connecting piece (7), wherein the sun louver (8) comprises a main body (81) arranged in the center, wherein a mounting groove (84) is formed at the rear end of the main body (81), the mounting area (73) is arranged in the mounting groove (84) in a position-limiting manner, the main body (81) receives the upper part of the connecting piece (7) and is firmly connected to the mounting hole (74) by means of screws or rivets, wherein the sun louver (8) is provided with a covering edge (82) on the front side of the main body (81) and with a drainage channel (83) on the rear side; - a covering edge (82) of one of the sun slats (8) rests against the rear wall of the drainage channel (83) of the front-adjacent sun slat (8), the drive structure for the sun roof stops the movement, the roof of the sun roof closes; the sun slat (8) rotates, a covering edge (82) of one of the sun slats (8) is removed from the rear wall of the drainage channel (83) of the front-adjacent sun slat (8), the roof of the sun roof opens.

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