DOOR DRIVE WITH A MOTOR UNIT, HAVING AN ADVANTAGEOUS BASIC SHAPE

Abstract

A door drive for arrangement on or in connection with a door system, wherein at least one leaf element of the door system is movable, including a motor unit with a housing, in which a stator is stationarily received, and wherein a rotor is arranged so as to be rotationally-movable in the housing and includes an output shaft, wherein the output shaft can be brought into operative connection in a driving manner with the leaf element. The motor unit has the basic shape of a cuboid, which is formed at least by two housing halves connected to each other.

Claims

1. A door drive for arrangement on or in connection with a door system, wherein at least one leaf element of the door system is movable, including a motor unit with a housing, in which a stator is stationarily received, and wherein a rotor is arranged so as to be rotationally-movable in the housing and includes an output shaft, wherein the output shaft is configured to be brought into operative connection in a driving manner with the leaf element, wherein the motor unit has the basic shape of a cuboid, which is formed at least by two housing halves connected to each other.

2. The door drive according to claim 1, wherein the stator and the rotor are received on the inside between the housing halves and/or wherein the housing halves are formed to rest indirectly or directly on each other.

3. The door drive according to claim 1, wherein the cuboid has a longitudinal edge, a width edge and a vertical edge, wherein the longitudinal edge is greater than the width edge and/or wherein the width edge is greater than the vertical edge.

4. The door drive according to claim 3, wherein the width edge has a length of 70% to 98% and/or of 85% to 95%, of the length of the longitudinal edge and/or in that the vertical edge has a length of 30% to 60% and/or of 40% to 50% of the length of the longitudinal edge.

5. The door drive according to claim 3, wherein the longitudinal edge and the width edge span an end surface, wherein the output shaft protrudes perpendicularly from the end surface.

6. The door drive according to claim 1, wherein at least one power unit and one controller are present, wherein the power unit and the controller are arranged at least indirectly on opposite lateral surfaces of the cuboid (14), wherein the opposite lateral surfaces span the width edge and the vertical edge of the cuboid.

7. The door drive according to claim 1, wherein a first flange element is provided, which is arranged on a first lateral surface and receives the power unit, and/or in that a second flange element is provided, which is arranged on a second lateral surface and receives the controller, wherein the motor unit is received so as to be retained in the door drive via the two flange elements.

8. The door drive according to claim 1, wherein a basic body of the door drive is formed by a support profile, wherein the motor unit, with regard to a subsequent installed position, is aligned to the support profile such that the output shaft has a horizontal extension.

9. The door drive according to claim 8, wherein the flange elements are fastened to the support profile such that the motor unit is arranged on the support profile by the flange elements.

10. The door drive according to claim 1, wherein the stator has a substantially round basic shape such that corner areas are formed in the cuboid, in which are arranged screw bores for arranging the flange elements and/or a screw arrangement for screwing the housing halves one on top of the other and/or a screw arrangement for screwing the stator to one of the housing halves.

11. The door drive according to one of the preceding claim 1, wherein the stator has a ring-shaped basic structure and is received in at least one of the housing halves, wherein an at least partially circumferential heat transition gap is formed between the radial outer side of the stator and the inner side of the housing half.

12. The door drive according to claim 1, wherein the stator includes surface sections on opposite outer sides of the cuboid, wherein the surface sections correspond to at least one recesses in the opposite outer sides of the cuboid.

13. The door drive according to claim 12, wherein at least one of the surface sections of the stator is brought into heat-transferring contact with the support profile through the at least one recess.

14. The door drive according to claim 12, wherein at least one of the surface sections of the stator is brought into heat-transferring contact with a separate cooling body through the at least one recess.

15. A door system with a door drive according to of claim 1, including at least one connecting element for connecting to a leaf element and/or at least one leaf element, with which the door drive is operatively connected in a driving manner.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Further measures improving the disclosure are represented below in detail together with the description of one preferred exemplary embodiment of the disclosure based on the figures, in which is shown:

[0030] FIG. 1 an overall view of the door drive with a motor unit, which has the structural shape according to the disclosure,

[0031] FIG. 2 a perspective view of the motor unit according to the disclosure,

[0032] FIG. 3 a perspective view of the motor unit according to FIG. 2, wherein one housing half is removed from the view, and

[0033] FIG. 4 a view of a further housing half of the motor unit with a stator and an output shaft.

DETAILED DESCRIPTION OF THE DRAWINGS

[0034] FIG. 1 shows an overall view of the door drive 100, as the same can be installed in a building, with the installation on ships and in airplanes also being included, and a door drive 100 of this type serves for example as a drive for an automatic sliding door system. The basic structure of the door drive 100 forms a support profile 27, which, for a simpler view, is illustrated shortened, moreover the essential upper part of the L-shaped support profile 26 is shown sectioned in order to further reveal the further essential components of the door drive 100 in this case.

[0035] As a central component, the door drive 100 includes a motor unit 1, and the motor unit 1 has the basic shape of a cuboid 14, which forms the housing 10 of the motor unit 1. In order to enable an output and therefore a connection to a leaf element, not represented in more detail, of a door system, a belt pulley 36 is arranged on the motor unit 1, over which a toothed belt can be placed, which ultimately establishes the connection to the leaf element/s, for example the glass sliding elements.

[0036] Adjacent to the motor unit 1, the door drive 100 includes a power unit 21 and a controller 22, and the power unit 21 and the controller 22 are arranged at opposite sides of the motor unit 1. The motor unit 1 is fastened to the support profile 27 with a first flange element 25, wherein the first flange element 25 simultaneously receives the power unit 21. Furthermore, the motor unit 1 is connected to the support profile 27 with a second flange element 26, wherein the second flange element 26 simultaneously receives the controller 22. Alternatively, the embodiment of a single flange is also possible in order to receive at least the motor unit 1, the power unit 21 and the controller 22. Furthermore, there is the possibility for the motor unit, the power unit 21 and/or the controller 22 to include respectively assigned separate flange elements for arrangement in or on the support profile 27.

[0037] FIG. 2 shows a perspective view of the isolated motor unit 1 with the housing 10, and in the representation at the top side, the belt pulley 36 for coupling a toothed belt above the end surface 20 of the housing 10 is located outside the housing 10. The housing 10 of the motor unit 1 includes a first upper housing half 15, and a second lower housing half 16, which by way of example are embodied in the same way, however, within the scope of the disclosure, they do not have to be embodied in the same way. The housing 10 is laterally delimited by a first lateral surface 23 and an opposite second lateral surface 24, and the flange elements 25 and 26, shown in FIG. 1, can be arranged on the lateral surfaces 23 and 24.

[0038] The cuboid 14 formed with the housing 10 has corner area 28, and screw bores 29 for fastening the flange elements 25, 26 are introduced into the respective corner areas 28 by means of screw elements, of which two screw bores 29 are numbered by way of example. Furthermore, screw arrangements 30 for screwing the housing halves 15 and 16 to each other are located in the corner areas.

[0039] The cuboid 14 is determined by the longitudinal edge 17, the width edge 18 and the vertical edge 19, wherein the lateral surfaces 23, 24 are spanned by the width edge 18 and the vertical edge 19.

[0040] The front-side surface, which is spanned by the longitudinal edge 17 and the vertical edge 19, has a window-shaped recess 37, from which protrudes a surface section 33 of the stator, which is not represented in this view, wherein reference is made to FIG. 3 in relation to the stator 11. The surface section 33 of the stator 11 pointing outwards serves for heat-transferring contact with a further body, for example with the support profile 27 or with another separate cooling body. As a result, despite the housing 10 with the upper and lower housing half 15, 16 being embodied substantially closed, the stator 11 can be brought into direct heat-transferring contact with a component adjacent to the motor.

[0041] The stator 11 according to the representation of FIG. 3, is screwed to the lower housing half 16 with the screw arrangement 31, and on the front side as well as on the rear side of the stator 11, there are respective surface sections 33 in opposite arrangement, which, as described above, form one surface section of the outer skin of the motor unit 1.

[0042] With the first housing half 15 removed, the stator 11 is shown with the rotor 12 arranged within the stator 11, wherein the rotor 12 is formed uniformly with the output shaft 13, which is guided out of the upper housing half 15, and the part of the output shaft 13 extending from the end surface 20 of the housing 10 receives the belt pulley 36.

[0043] In an overview with FIG. 3, FIG. 4 shows, in a further representation, the lower housing half 16, wherein the rotor 12 is also shown with the output shaft 13. Within the housing half 16, but also not shown in more detail in the housing half 15, is located a substantially ring-shaped receiving area 38, in which the stator 11 is received. FIG. 3 shows a heat transition gap 32, which results as an at least partially circumferential annular gap between the outer side of the stator 11 and the inner shell surface of the receiving area 38.

[0044] If the motor unit 1 is operating, the stator 11 is heated by energizing the winding on the stator 11, not shown in detail, and the heat from the stator 11 can transfer into the housing halves 15, 16 with the very small dimensioned heat transition gap 32. The heat transition gap 32 is thereby advantageously embodied as a transition fit. On the rear side of the cuboid 14 opposite the end face 20 is located a printed circuit board 39, on which conductor paths are arranged, which in particular serve for the contacting and wiring of the winding of the stator 11. In this case, the printed circuit board 39 is fastened with retaining elements on the housing 10 of the motor unit 1.

[0045] The design of disclosure is not limited to the above indicated preferred exemplary embodiment. In fact, a number of variants is conceivable, which make use of the represented solution, even with essentially different types of designs. All features and/or advantages including the constructive details or spatial arrangements, emerging from the claims, the description and the drawings, may be essential to the disclosure, both by themselves and in the most varied combinations.