METHOD FOR PIVOTING A LEAF USING A DRIVE DEVICE AND DRIVE DEVICE FOR PIVOTING A LEAF

Abstract

A method for pivoting a leaf from a closed position at an opening angle of 0° to an open position at an opening angle of greater than 0° and/or from the open position at the opening angle of greater than 0° to the closed position at the opening angle of 0° by a leaf torque, wherein the leaf toque has a manual torque, generated by a person, and a drive torque, wherein the drive torque is generated by a drive device with a drive module, a closer module and a controller module. The drive module has an electric machine having a stator and a rotor, wherein the closer module has an, in particular mechanical, energy storage, wherein the controller module has a controller device, wherein the drive torque has a machine torque generated by the electric machine and a closer torque generated by the closer module.

Claims

1. A method for pivoting a leaf from a closed position at an opening angle of 0° to an open position at an opening angle of greater than 0° and/or from the open position at the opening angle (α) of greater than 0° to the closed position at the opening angle of 0° by a leaf torque, wherein the leaf toque comprises a manual torque generated by a person, and a drive torque, wherein the drive torque is generated by a drive device with a drive module, a closer module and a controller module, wherein the drive module has an electric machine comprising stator and a rotor, wherein the closer module has an energy storage, wherein the controller module has a controller device, wherein the drive torque comprises a machine torque generated directly or indirectly by the electric machine and a closer torque generated by the closer module, wherein at at least one opening angle of greater than 0°, the machine torque is greater than 0 Nm.

2. The method according to claim 1, wherein during a closing movement of the leaf from the open position to the closed position in a first method step, the electric machine generates a first braking torque, wherein the first braking torque is the closer torque of the closer module in the opposite direction, such that the closing movement of the leaf is slowed down and/or stopped.

3. The method according to claim 2, wherein in a second method step following the first method step, the electric machine generates an additional closing torque, which adds up to the closer torque of the closer module, such that the closing movement of the leaf takes place with increased drive torque, such that the electric machine generates the additional closing torque when the leaf has fallen below a first specified opening angle, such that the first specified opening angle is in a range from 0.5 degrees to 7 degrees.

4. The method according to claim 1, wherein the opening angle is determined by an angle measuring device of the drive device, in that the angle measuring device is designed as at least one Hall sensor and/or as at least one inertial sensor.

5. The method according to claim 4, wherein the sensor is formed as part of the drive device, in that the sensor is arranged at least partially within a housing of the drive device, or in that the sensor is arranged on the leaf.

6. The method according to claim 3, wherein during the second method step, the controller device controls the additional closing torque of the electric machine depending on the opening angle of the leaf.

7. The method according to claim 3, wherein the controller device monitors the opening angle in the second method step, wherein the drive device increases the additional closing torque when the leaf is in the open position, for longer than a first predetermined period of time, during the second method step, in that during the second method step, the additional closing torque is increased continuously or step-wise until the leaf is in the closed position or until the maximum machine torque of the electric machine is reached.

8. The method according to claim 3, wherein during the second method step, the drive device emits an error message when the maximum machine torque of the electric machine has been reached and the leaf is in the open position, and/or when the leaf is in the open position for longer than a second predetermined period of time.

9. The method according to claim 1, wherein during a closing movement of the leaf from the open position to the closed position, the electric machine generates a second braking torque, over a certain period of time, wherein the second braking torque opposes a closer torque of the closer module and compensates the closer torque of the closer module, such that the closing movement of the leaf is stopped if the closing movement of the leaf is stopped by the manual torque for at least a third predetermined period of time.

10. The method according to claim 9, wherein the second braking torque is generated until a closing signal to the drive device is sent and/or until the leaf resumes the closing movement due to the manual torque.

11. The method according to claim 1, wherein if an intention to open is detected, an additional opening torque is generated by the electric machine, wherein the intention to open is detected by at least one sensor, wherein the sensor is formed as an inertial sensor and/or as a Hall sensor and/or as an acoustic sensor.

12. The method according to claim 11, wherein the sensor is formed as an acoustic sensor, in that the additional opening torque is already generated in the closed position of the leaf.

13. A drive device, in particular for carrying out the method according to claim 1, for pivoting a leaf from a closed position at an opening angle of 0° to an open position at an opening angle of greater than 0° and/or from the open position at the opening angle of greater than 0° to the closed position at the opening angle of 0° by a leaf torque, wherein the leaf toque comprises a manual torque, generated by a person, and a drive torque, wherein the drive torque is generated by the drive device with a drive module, a closer module and a controller module, wherein the drive module has an electric machine comprising a stator and a rotor, wherein the closer module has an energy storage, wherein the controller module has a controller device and wherein the drive torque comprises a machine torque generated directly or indirectly by the electric machine and a closer torque generated by the closer module, wherein at at least one opening angle of greater than 0°, the machine torque is greater than 0 Nm.

14. The drive device according to claim 13, whereby a transmission coupled with the electric machine and an output shaft rotatable about an output axis for, non-rotatable, connection to a lever, in that the transmission has a translation ratio as a quotient of the speed of the rotor as a dividend and the speed of the output shaft, which is less than 125.

15. The drive device according to claim 13, wherein the electric machine is formed as an axial flux machine, in that the stator has one or more coils and the rotor has one or more permanent magnets.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0092] Further details and advantages of the disclosure are to be explained below with reference to the exemplary embodiments shown in the figures. Herein shows:

[0093] FIG. 1 an exemplary embodiment of a drive device according to the disclosure in a schematic sectional view;

[0094] FIG. 2 the drive device from FIG. 1 as a detail in a perspective view;

[0095] FIG. 3 a translation element as a detail in a top view,

[0096] FIG. 4 a further exemplary embodiment of a drive device with a planetary transmission,

[0097] FIG. 5 the drive device from FIG. 4 with the ring gear removed,

[0098] FIG. 6 an axial flux machine in a schematic representation in section.

[0099] FIG. 7a a leaf in a closed position,

[0100] FIG. 7b the leaf from FIG. 7a in an open position, and

[0101] FIG. 8 a flow chart of an exemplary embodiment of a method for closing a leaf.

DETAILED DESCRIPTION OF THE DRAWINGS

[0102] The same parts are always provided with the same reference numerals in the different figures, which is why they are generally also only described once.

[0103] FIG. 1 shows a drive device 1 for pivoting a leaf 44 (FIG. 7a), in particular a door leaf or a window leaf. The drive device 1 has a drive module, which is designed, for example, as a motor transmission module 3. The motor transmission module 3 has a motor transmission housing 4, an electric machine 6 having a machine axis X1, and a transmission 7 with an output shaft 8 mounted rotatably about an output axis X2 for connection to a lever 9. The drive device 1 also has a closer module 11 which has a closer housing 12 and a mechanical energy storage 13. The drive device 1 has an interface element for forming an operative connection between the motor transmission module 3 and the closer module 11.

[0104] The transmission 7 has a translation ratio as a quotient of the speed of the rotor as a dividend and the speed of the output shaft, wherein the translation ratio is less than 125, preferably less than 100, particularly preferably less than 75.

[0105] The lever 9 is used to design a connection between the drive device 1 and the leaf 44, thus with the exemplary door leaf or window leaf or with a frame 48, wherein the drive device 1 can optionally be mounted on the frame 48 or on the leaf. Within the meaning of the disclosure, the term frame also includes a door frame 48 or window frame. In particular, the lever 9 can be formed in such a way that a power supply of the electric machine 6 and/or at least one controller signal for the electric machine 6 can be transmitted via the lever 9 to the transmission gearbox module 3, in particular to the electric machine 6 and/or controller module 26. The lever 9 is guided in a running rail 2, which in the exemplary embodiment shown in FIGS. 1 and 2 would be mounted on a frame 48 (not shown there), but which can be seen in FIG. 7a.

[0106] As can be clearly seen in FIGS. 1 and 2, the output shaft 8 is arranged in an installation space between the machine axis X1 of the electric machine 6 and the energy storage 13.

[0107] The motor transmission housing 4 has a first opening 16, wherein the closer housing 12 has a second opening 17. As can be seen in FIG. 1, the motor transmission housing 4 and the closer housing 12 are arranged with respect to one another in such a way that the closer module 11, in particular the energy storage 13, and the transmission 7, in particular the output shaft 8, are in operative connection to one another by means of the interface element through the first opening 16 and the second opening 17.

[0108] The motor transmission module 3 and/or the closer module 11 is respectively arranged at least partially, in particular completely, within a superordinate housing 5. The motor transmission housing 4 is connected to the superordinate housing 5 and/or to the closer housing 12 in a non-positive and/or positive and/or cohesive manner. The closer housing 12 is non-positively and/or positively and/or cohesively connected to the superordinate housing 5. One or more such connections are designed, for example, in the form of at least one screw connection.

[0109] It can be seen in FIGS. 1 and 2 that the output axis X2 is parallel to the machine axis X1.

[0110] The closer module 11 has a translation element 18 for translating a linear movement of the energy storage 13 into a rotational movement of the translation element 18 about an axis of rotation X3 of the translation element 18. As can be seen, for example, in FIG. 1, the output axis X2 and the axis of rotation X3 of the translation element 18 are spaced apart from one another and run parallel to one another. The translation element 18 is formed as a cam disk, specifically as a heart-shaped lifting cam disk, and is rotatably stored with a closer gear 10 in a rotationally fixed manner.

[0111] For example, the mechanical energy storage 13 is designed as a compression spring. The compression spring is connected to the translation element 18 with a lug carriage 27 in order to translate the linear movement of the mechanical energy storage 13 into a rotational movement of the translation element 18. The plate lug carriage 27 has sliding elements 21, which can be seen in FIG. 2. The lug carriage 27 can be seen in FIG. 4.

[0112] The closer gear 10 is arranged coaxially and non-rotatably with the translation element 18 for translating the linear movement of the energy storage 13 into a rotational movement of the translation element 18.

[0113] The transmission 7 has an output gear 22, namely an output gear which is coaxial with the output shaft 8 and non-rotatable, wherein the output gear 22 is in engagement with the closer gear 10.

[0114] In the exemplary embodiment of FIGS. 1 and 2, the interface element is formed by the output gear 22.

[0115] For example, the motor transmission housing 4 has a first wall 23 with an output opening 24 for the non-rotatable connection of the output shaft 8 to the lever 9, a second wall adjoining the first wall 23 and a third wall opposite the second wall, wherein the drive device 1 is formed such that both the second wall and the third wall face the leaf, so to be attached to the exemplary door leaf. The same can apply to the closer housing 12. The motor transmission housing 4 and also the closer housing 12 can each be formed in a cuboid shape in order to enable assembly on both sides.

[0116] The controller module 26, which has a controller device, can also be seen in FIG. 1. The controller module 26 is arranged at least partially, in particular completely, within the superordinate housing 5 of the drive device 1.

[0117] FIG. 3 shows a special embodiment, wherein the translation element 18 is formed as a cam disk, specifically as a heart-shaped lifting cam disk. As can further be seen in FIG. 3, a fixed axle body 19 is arranged, wherein the translation element 18 and the closer gear 10 are rotatably stored on the axle body 19.

[0118] In FIGS. 4 and 5, the drive device 1 is shown in a further embodiment, wherein the optional transmission 7 is designed in contrast to the embodiment of FIGS. 1 and 2 as a planetary transmission. The terms planet and planetary gear are used synonymously.

[0119] As a planetary transmission, the transmission 7 has at least one Wolfrom stage. Such a Wolfrom stage has a first transmission stage and a second transmission stage. The first transmission stage comprises a sun gear, multiple first planets 31 fastened to a planetary carrier and driven by the sun gear, and a first, stationary ring gear. The sun gear and the first stationary ring gear cannot be seen in FIGS. 4 and 5 because of the section chosen. The second transmission stage comprises a second rotatable ring gear 33, second planets 32 that are non-rotatable with the first planets 31 and are in particular formed in one piece. The second planets 32 drive the second ring gear 33. The second ring gear 33 forms the power output of the planetary transmission. In FIG. 5, the second ring gear is removed.

[0120] The transmission 7 according to the exemplary embodiment of FIGS. 4 and 5 is formed as a combination of planetary transmission and a spur gear. The ring gear 33 of the planetary transmission has external teeth 34 and acts as a spur gear. The ring gear 33 meshes with the closer gear 10 of the closer module 11. In the exemplary embodiment of FIGS. 4 and 5, the closer gear 10 forms the interface element.

[0121] In the exemplary embodiment of FIGS. 4 and 5, the output axis X2 is coaxial with the machine axis X1.

[0122] In the exemplary embodiments described, the electric machine 6 is designed as an axial flux machine.

[0123] The electric machine 6 is shown in principle as a detail in FIG. 6. The electric machine 6 has a stator 36 and a rotor 37. The stator 36 has a plate-shaped stator base 38 and various stator teeth 39 protruding from the stator base 38 in the axial direction of the electric machine 6. Thereby, a coil 41 is arranged around each of the stator teeth 39. Each stator tooth 39 has an electrically insulating tooth casing 75, wherein the stator 36 has multiple coils 41 and each of the coils 41 is wound around the tooth casing 75 and therefore indirectly via the tooth casing 75 around the stator tooth 39. The stator teeth 39 pass through a printed circuit board 74 on which the coils 41 are contacted.

[0124] It can be seen in FIG. 6 that the stator 36 also comprises a stationary bolt 50, wherein the bolt 50 has a bearing holder 76 for accommodating a rolling bearing 77. A rolling bearing 77 with balls 77′ is shown in FIG. 6 as an example. The drive device 1 comprises the rolling bearing 77 for the rotatable mounting of the rotor 37 relative to the stator 36, wherein the rolling bearing 77 is accommodated on the bearing holder 76 of the bolt 50. The rotor 37 is rotatably mounted on the stator 36 by means of the rolling bearing 77. In an embodiment not represented, a bearing holder can be provided directly on the stator base, on which a rolling bearing can be held. The rotor 37 comprises multiple permanent magnets 78. Each permanent magnet 78 is formed in a plate shape. The rotor 37 has a rotor plate 79 in the form of a rotor disc. Furthermore, each permanent magnet 78 protrudes from the rotor plate 79 of the rotor 37 in the axial direction of the electric machine, in particular in the direction of the stator 36.

[0125] As can best be seen from FIGS. 1 and 2, the transmission 7 has a first transmission element 42 which can be rotated coaxially with the machine axis X1 and which is connected to the rotor 37 in a rotationally fixed manner. The transmission 7 also has a second transmission element 43, which is operatively connected to the first transmission element 42, wherein an axis of rotation X4 of the second transmission element 43 runs in an installation space between the machine axis X1 and an outer circumferential surface of the rotor 37 virtually extended in the axial direction of the electric machine 6 or an outer circumferential surface of the stator 36 virtually extended in the axial direction of the electric machine 6, in particular parallel to the machine axis X1.

[0126] The drive device 1 according to the exemplary embodiments described above is configured to carry out a method 100 for pivoting a leaf 44, in particular a door leaf or a window leaf, from a closed position 46 at an opening angle α of 0° to an open position 47 at an opening angle α greater than 0° and/or from the open position 47 at the opening angle α greater than 0° to the closed position 46 at the opening angle α of 0° by means of a leaf torque, wherein the leaf torque comprises a manual torque, in particular generated by a person, and a drive torque. The drive torque is generated by the drive device 1 with a drive module, a closer module 11 and a controller module 26. The drive module is designed as a motor transmission module 3, for example. The drive module has the electric machine 6, comprising the, in particular single, stator 36 and the, in particular single, rotor 37. The closer module 11 has the, in particular mechanical, energy storage 13. The controller module 26 has a controller device. The drive torque comprises a machine torque generated directly or indirectly by the electric machine 6 and a closer torque generated by the closer module 11. At at least one opening angle α of greater than 0°, the machine torque is greater than 0 Nm.

[0127] The closed position 46 of the leaf 44 can be seen in FIG. 7a. The open position 47 and an exemplary opening angle α of the leaf 44 can be seen in FIG. 7b. It can also be seen in FIG. 7a that the drive device 1 is mounted with its running rail 2 on a frame 48. A door handle 49 on the leaf 44 is also indicated in FIG. 7a.

[0128] A flow chart of the method 100 is shown in FIG. 8.

[0129] During a closing movement of the leaf 44 from the open position 47 to the closed position 46, the electric machine 6 generates a first braking torque in a first method step 101. The first braking torque opposes the closer torque of the closer module 11, such that the closing movement of the leaf 44 is slowed down and/or stopped.

[0130] In a second method step 102 following the first method step 101, the electric machine 6 generates an additional closing torque, which adds up to the closer torque of the closer module 11, such that the closing movement of the leaf takes place with an increased drive torque. The electric machine 6 preferably generates the additional closing torque when the leaf 44 has fallen below a first predetermined opening angle α.

[0131] During the second method step 102, the controller device of the controller module 26 controls the additional closing torque of the electric machine 6 depending on the opening angle α of the leaf 44.

[0132] If a person's intention to open is detected, an additional opening torque is generated by means of the electric machine 6, wherein the intention to open is detected by at least one sensor. The sensor is formed as an acoustic sensor, wherein the additional opening torque is already generated in the closed position 46 of the leaf 44.