EP1805386A1 - Porte coulissante comprenant un systeme de support et/ou d'entrainement magnetique presentant une rangee d'aimants - Google Patents

Porte coulissante comprenant un systeme de support et/ou d'entrainement magnetique presentant une rangee d'aimants

Info

Publication number
EP1805386A1
EP1805386A1 EP05790105A EP05790105A EP1805386A1 EP 1805386 A1 EP1805386 A1 EP 1805386A1 EP 05790105 A EP05790105 A EP 05790105A EP 05790105 A EP05790105 A EP 05790105A EP 1805386 A1 EP1805386 A1 EP 1805386A1
Authority
EP
European Patent Office
Prior art keywords
sliding door
row
magnets
magnetic
door according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05790105A
Other languages
German (de)
English (en)
Inventor
Sven Busch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dormakaba Deutschland GmbH
Original Assignee
Dorma Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE200410050341 external-priority patent/DE102004050341B4/de
Priority claimed from DE200410050328 external-priority patent/DE102004050328B3/de
Application filed by Dorma Deutschland GmbH filed Critical Dorma Deutschland GmbH
Publication of EP1805386A1 publication Critical patent/EP1805386A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a sliding door with a magnetic support and / or drive system with a permanently excited magnetic support means and a linear drive unit with at least one row of magnets, in particular for an automatic door operated.
  • magnet series also includes elongated individual magnets.
  • the magnet series can be arranged stationary or mobile.
  • a sliding door guide in which mit ⁇ co-operating magnets under normal load a contact-free floating guidance of a sliding guide gehal ⁇ tenen door leaf or the like cause, in addition to the stationary magnet arranged the sliding guide a stand a linear motor is arranged, whose rotor is arranged on the sliding door.
  • a combined storage and drive system for an automatically operated door in which a permanently er ⁇ energetic magnetic support system is symmetrical and has stationary and movable magnet rows, which are each arranged in a plane, wherein the support system in an unstable equilibrium weight, and in which the support system has symmetrically arranged lateral guide elements which can be mounted in a roll-shaped manner.
  • a simple design and arrangement of the stator and rotor of a linear motor housed in a common housing namely the possibility of being able to arbitrarily arrange the stator and rotor of the linear motor in relation to the support system, can be arranged the shape of stand and runner not be limited by the support system be ⁇ .
  • WO 94/13055 shows a stator drive for an electric linear drive and a door provided with such a stand, which is suspended by means of magnets in the lintel of a frame.
  • a plurality of magnets or magnet groups are arranged on the door panel, de ⁇ ren magnetic field strength is so great that an attraction force to a guide plate is achieved, which is arranged on the underside of the door lintel an ⁇ , wherein the attraction is sufficient to the weight to lift the door panel.
  • Abrasive sign change has, over the prior art has the advantage that the linear drive unit is reduced rastkraftrraf.
  • a preferably permanently excited magnetic support device can be detent-reduced if the permanently excited magnetic support device and the linear drive unit are integrated.
  • an escape route function unproven can be implemented lematically.
  • the electromagnetic thrust force is not superimposed by strong detent forces, whereby a uniform overall thrust force is achieved, so that even at lang ⁇ samer driving speed is a uniform jerk-free movement and very slow speeds can be realized.
  • the magnetizations of the at least one magnetic row with respect to the coil arrangement are preferably irregular or adjusted in such a way that there is a continuous or an approximately continuous transition from a sign to a neighboring inverse sign.
  • the alternating polarizations of the at least one magnet row merge "softly" into one another, such a smooth transition also being able to be adjusted by a constantly repeating grid of the individual magnets rigidly connected to one another Connected cores of the coil assembly is avoided, so certain intentional or within certain limits random deviations are provided by the normally set for the linear drive regular grid.
  • the magnetizations of the at least one magnet row are irregular and the individual coils are regularly spaced from one another in order to realize this feature, since this makes possible a particularly good combination with other measures of reducing rast force.
  • the coil cores of the individual coils can also have an irregular spacing relative to each other.
  • the magnets may be regular or at another irregular distance from each other.
  • individual magnets according to the invention may have a bevelled shape with respect to the drive direction be installed at an angle.
  • the transitions between the respective generated magnetic fields or between the elements introduced into them and the surrounding air can be made slightly more continuous.
  • the magnetizations are of parallel arranged magnet rows and / or groups of respectively adjacent individual magnets of a magnetic series and / or individual magnets of a magnetic series with respect to the distances of the individual coils of the Spulenan ⁇ order, in particular their magnetic cores, offset from each other.
  • the previously described effect also occurs because the magnet rows are rigidly connected to each other.
  • the magnetizations of two magnet rows arranged in parallel with respect to the individual coils of the coil arrangement are preferably offset by one-half relative to one another when I is a wavelength of a detent force occurring over the travel path of a single magnet row.
  • I is a wavelength of a detent force occurring over the travel path of a single magnet row.
  • the magnetizations of two groups of individual magnets of one magnet row with respect to the individual coils of the coil arrangement can be offset from one another by 1/2 are when I is the wavelength of a locking force occurring over the travel of a single group.
  • individual magnets of a magnet array which are alternately polarized in the longitudinal direction of the magnet array, or groups of at least two such magnet magnets of a magnet array may be slightly offset relative to each other with respect to the individual coils of the coil arrangement a maximum offset of a single magnet or a group of individual magnets is I, if I is the wavelength of the detent force at not offset from each other individual magnets or groups of individual magnets.
  • This arrangement with a maximum offset of I leads in particular in many gegen ⁇ each other and offset in relation to the basic grid groups or Ein ⁇ zelmagneten to a superposition, which leads to an extinction of irregular detent forces.
  • the second alternative embodiment of the sliding door according to the invention has a rastkraftrredu preparede linear drive unit, the at least one arranged in the drive direction series of soft or hard magnetic elements and at least one of several Einzel ⁇ existing coil arrangement, which causes a corresponding interaction with the at least one row of soft or hard magnetic elements, the pre-shear forces, and / or a permanently excited magnetic support means, the at least one rastkraftrredu generatede magnet series, at least a tightening of the force effect with at least one of at least one magnet row standing soft or hard magnetic support member having a guide member having a certain gap-shaped distance between the at least one magnet row and ensures the support member, wherein the at least one magnetic row can be formed from the at least one arranged in the drive direction series of hard magnetic elements.
  • This magnetic support and / or drive system has the advantage over the prior art that the linear drive unit and / or the magnet row of the magnetic support device are detent-reduced.
  • both the permanently excited magnetic support means and the linear drive unit be rastkraftrreduzedred when the permanently excited magnetic support means and the linear drive unit are formed integrally.
  • the reduction of the latching force according to the invention makes both starting easier and lessens a "ripple" of the force required to move the carrying device.
  • the soft or hard magnetic elements which can also form the magnet series in the first alternative embodiment, are preferably bevelled.
  • the soft or hard magnetic elements according to the invention preferably have a chamfer or a curved Oberflä ⁇ surface.
  • the soft or hard magnetic elements according to the invention may be multipole magnets with four or more magnetic poles and / or have nonuniform magnetization with a weakening to the edges. Also due to this configuration _
  • At least two rows of soft or hard magnetic elements arranged in the drive direction may be present, which are displaced relative to one another in the drive direction.
  • a similar effect also occurs in the further alternative or additional possibility according to the invention of spacing the soft or hard magnetic elements unevenly in the drive direction.
  • the soft or hard magnetic elements according to the invention it is also possible to provide annular or lateral pole shoes on the individual shoes, which guide the electromagnetic fields generated by the individual shoes to those soft or hard magnetic elements arranged in a row, where a surface of the pole shoes directed towards the soft or hard magnetic elements arranged in a row is curved or provided with a chamfer.
  • the individual coils have coil cores, one of the soft or hard magnetic elements arranged in a row being able to directed surface of the coil cores is curved or provided with a chamfer.
  • flux guide pieces can also be attached to surfaces of the individual coils which are directed toward the soft or hard-magnetic elements arranged in a row and which change or enlarge these surfaces.
  • These flux guides may preferably be beveled, rounded, bent or provided with a chamfer.
  • the latching force can also be reduced by special ratios of coils to magnets.
  • the cross-sectional area of the coil cores of the individual coils can also be particularly designed in order to reduce the latching force.
  • the coil cores may preferably have a round cross-sectional area, or a diameter of the coil cores greater than a height of the elements of at least one in Drive direction arranged series of soft or hard magnetic elements.
  • the coil cores may have a rectangular or square cross-sectional area, which is preferably provided with a rounding or bevel at the edges.
  • the individual coils may have coil cores having a cross-sectional area, which are composed of a rectangular, in particular square, surface and two semicircles or curves.
  • the individual coils according to the invention can also have coil cores with an oval or oval-like cross-sectional area in order to reduce the latching force.
  • the magnetic support system or combined magnetic support and drive system used according to the invention with a permanently activated magnetic support device has the advantage over the described prior art that the support element does not necessarily have to be hard-magnetic due to the utilized attractive force effect. Furthermore, since a guide element is provided, which ensures a distance between the at least one magnet row and the support element, no electrical or electronic control device needs to be provided despite utilizing an unstable state of equilibrium. Further, by using the at least one row of magnets both for carrying and for propulsion, the manufacturing costs are reduced and the required space is reduced.
  • the at least one row of magnets is magnetized transversely to the direction of support and to the drive direction, in which an element carried by the support means, e.g. B. a Schiebetele ⁇ ment, can be moved.
  • an element carried by the support means e.g. B. a Schiebetele ⁇ ment
  • the magnetization of the at least one row of magnets transverse to the supporting direction This results in a particularly simple structural design of the guide element, since in this case it can be planned and executed independently of a force that has to be generated by the support device in order to keep the supported element in a floating state.
  • a simple embodiment of the linear drive unit is also possible since it can also be planned and executed independently of the force to be generated by the support device.
  • the at least one row of magnets preferably consists of individual permanent magnets, since costs can be saved by lining up individual smaller magnets in the procurement of material and thus in the production process of the carrying device according to the invention. Furthermore, due to this design, it is easier to compensate for tolerances and to make better use of magnetic properties. Instead of a series of magnets, a single magnet can be used, whereby the relatively difficult mounting of the plurality of individual magnets is eliminated.
  • the magnetization of the at least one magnet row in a longitudinal direction of the at least one magnet row alternates at certain intervals.
  • This feature which can be realized particularly easily with a magnet series consisting of individual permanent magnets, produces a better magnetic effect since, together with the support device, a magnetic field closure of the individual magnetization regions, ie between the individual permanent magnets, is produced.
  • the magnet series can be integrated in this way in a particularly simple manner into the magnetic drive system according to the invention, ie serve as a series of hard-magnetic elements with which the individual coils can be used in the case of cause an interaction that causes feed forces.
  • the guide element ensuring the gap-like spacing does not have to absorb large forces even with tolerances of the double-acting support element, since the forces acting in the direction of magnetization between the at least one magnet row and the support element cancel out at best ,
  • This effect is more strongly supported with an increasing number of alternating polarizations, since both tolerances in the field strengths of individual polarization regions are better compensated, and such a superimposition of the forces respectively generated by the individual polarization regions results in a field being generated. which counteracts the buildup of shear forces.
  • At least three successive polarization areas should be provided so that a possible in only two polarization areas of the magnetic series possible canting of the magnetic series does not occur, which can already generate large lateral forces.
  • the support element or parts thereof are preferably formed by the series of soft-magnetic elements interrupted at specific intervals. This results in an integration of the magnetic Tragsyste- mes with the magnetic drive system according to the invention instead, whereby a reduction of the required installation space takes place.
  • the support element preferably has at least one support rail, which is arranged at a first predetermined distance to a side of at least one magnet row, the Spu ⁇ lenan extract at a second predetermined distance to one of first side of the magnet array opposite second side of the magnet array is arranged.
  • the support profile can continue the tasks of magnetic closure of the coil magnetic fields and the generation of load capacities , the weight of the load, z. B. a door, teil ⁇ wise or complete record, take over.
  • the residual load z. B. are carried by the coil cores or pole pieces of the individual coils of the coil assembly of the linear drive unit or by a further magnetic mechanical support device.
  • the support element can also preferably have two mounting rails, one of which is arranged at a certain distance from a first side of at least one magnet row, and the other at the same specific distance to a second side opposite the first side of the magnet row Side of the magnetic series or another series of magnets of at least one row of magnets is arranged.
  • the support element can for this purpose preferably have a U-shaped mounting rail with a bottom area and two side areas, the floor area connecting the two side areas and at least one magnet row of the at least one magnet row being guided at least partially within the U-shaped mounting rail.
  • At least parts of an inner surface of the one side region are arranged at the predetermined distance to a first side of the magnet array and at least parts of an inner surface of the other side region with the same or a different specific gap-shaped distance to a second side of the magnetic series opposite the first side of the magnetic series a further row of magnets of the at least one row of magnets are arranged.
  • the distance between the magnet array and the support element is kept as small as possible.
  • the at least one support element used in the magnetic support device according to the invention is preferably stationary and the at least one row of magnets is arranged so that it can move, ie in the case of a sliding door it is suspended from the at least one row of magnets, whereas the at least one support is suspended ⁇ ment forms a guide for the door element or the door elements of a multi-leaf sliding door.
  • the design of the at least one support element is also movable and the at least one row of magnets stationary, as well as a combination of these two Va ⁇ variants possible.
  • the coil arrangement of the linear drive unit is of course always fixed together with the support element of the support device or arranged to be movable. As a result, with a slight movement path, as normally occurs when driving door leaves, there are no excessive increased costs, but the runner and thus the total movable element of the drive system according to the invention or combined magnetic support and drive system can be designed to be passive.
  • the at least one support element is preferably soft magnetic according to the invention, whereby particularly low costs are achieved with respect to this element.
  • the guide element according to the invention preferably comprises rollers, rolling and / or sliding body.
  • the at least one magnet series preferably consists of one or more high-performance magnets, preferably rare earth high-performance magnets, more preferably neodymium-iron-boron (NeFeB) or samarium-cobalt (Sm 2 Co) or plastic-bonded magnet materials ,
  • high-performance magnets preferably rare earth high-performance magnets, more preferably neodymium-iron-boron (NeFeB) or samarium-cobalt (Sm 2 Co) or plastic-bonded magnet materials .
  • the drive system according to the invention or combined support and drive system is used to drive at least one door leaf of a sliding door, which is preferably designed as a curved sliding door or horizontal sliding wall. In addition to this insert, it can also be used to drive door leaves or in feeders, handling equipment or transport systems. All preferred embodiments described with reference to the first or second alternative embodiment of a sliding door according to the invention can-as well as the first and second alternative embodiments themselves-be combined as desired.
  • FIG. 1 shows a cross section of a first preferred embodiment of the magnetic support device preferably used according to the invention in different load states
  • FIG. 2 shows the load capacity curve of the magnetic support device according to the first preferred embodiment shown in FIG. 1,
  • FIG. 3 shows the transverse force profile of the magnetic support device according to the first preferred embodiment shown in FIG. 1,
  • FIG. 4 shows a sectional view of a top view of the magnetic support device according to the first preferred embodiment shown in FIG. 1,
  • FIG. 5 shows a perspective view of a first preferred embodiment of a part of the combined carrier and drive system according to the invention with three coils aligned transversely to the direction of travel and U-shaped plate holding devices. tion and three contacting and fixing pins without and with a U-shaped mounting rail element,
  • FIG. 6 is a sectional view of a plan view of the first preferred embodiment of the combined support and drive system according to the invention.
  • FIG. 7 shows an electrical connection of the coils of the linear drive unit of the combined support and drive system shown in FIG.
  • FIG. 8 shows a diagram for explaining a first possibility of the voltage profile at the coils of the first preferred embodiment of the drive system according to the invention as shown in FIG. 7, FIG.
  • FIG. 9 shows a diagram for explaining a second possibility of the voltage curve at the coils of the first preferred embodiment of the drive system according to the invention as shown in FIG. 7, FIG.
  • FIG. 10 shows a diagram for explaining a third possibility of the voltage curve at the coils of the first preferred embodiment of the drive system according to the invention as shown in FIG. 7,
  • FIG. 11 shows a perspective view of a second preferred embodiment of a part of the combined carrier and drive system according to the invention with three driving lanes.
  • tion oriented coils which are based on a common Core are wound, wherein the core and the quad ⁇ ratischen pole shoes shown may be a compact rotary part,
  • FIG. 12 coils arranged in series according to the second preferred embodiment with aligned axes, which are opposed by magnets on one side, or with flux guides on both sides of which are arranged
  • FIG. 13 a sectional view of a top view of the second preferred embodiment of the combined drive system according to the invention.
  • FIG. 14 Representations of preferred embodiments of pole shoes according to the invention.
  • FIG. 15 Representations of preferred embodiments of individual magnets according to the invention of the magnet series (s),
  • FIG. 16 shows further illustrations of preferred embodiments of individual magnets of the magnet array (s) according to the invention.
  • FIG. 17 shows a further illustration of a preferred embodiment of pole shoes according to the invention and a representation of a preferred embodiment of coil cores according to the invention
  • FIG. 18 a representation of a preferred embodiment of a magnet series according to the invention consisting of a magnet
  • FIG. 19 is a sectional view of a plan view of a third preferred embodiment of the combined support and drive system preferably used according to the invention, with its cogging force and thrust force profile,
  • FIG. 20 is a sectional view of a top view of a first preferred embodiment of the combined support and drive system used according to the invention with its cogging force and thrust force profile according to the third preferred embodiment of the invention;
  • FIG. 21 is a sectional view of a plan view of a second preferred embodiment of the combined support and drive system preferably used in accordance with the invention with its cogging force and thrust characteristic according to the third preferred embodiment of the invention;
  • FIG. 22 shapes of magnets or magnet rows preferably used according to the invention according to the third preferred embodiment.
  • FIG. 1 shows a schematic basic illustration of a first preferred embodiment of the magnetic support device preferably used according to the invention in cross section.
  • a coordinate system is shown in which an x-direction represents a travel direction of a door leaf 5 suspended on the carrying device according to the invention.
  • the direction of the transverse forces acting on the magnetic support device is the y-direction and the vertical magnetic deflection downwards due to the weight of the suspended door leaves 5 is shown in the z-direction.
  • a magnetic row 1 fastened to a support carriage 4 is positively guided in the horizontal direction by a mechanical guide element 3 which cooperates with a housing 6 of the support device, between soft-magnetic support rails 2a, 2b which form the support element 2.
  • the cause of this restoring force are the magnetic forces of attraction acting between the magnets 1a, 1b, 1c, 1d of the magnet array 1 and the mounting rails 2a, 2b, only the part of the magnets 1a, 1b, 1c, 1d which is located between the mounting rails 2a 2 b, which contributes to this magnetic load capacity. Since this part increases with increasing vertical deflection, the magnetic load capacity continuously increases with the deflection in accordance with the contract.
  • FIG. 2 shows the dependence between the vertical deflection of the magnet row 1 and the magnetic load capacity in a characteristic curve, ie the load capacity curve of the support device according to that shown in FIG Embodiment.
  • a characteristic curve ie the load capacity curve of the support device according to that shown in FIG Embodiment.
  • the vertical deflection z down, z. In mm and on the ordinate the corresponding generated magnetic load F (z), e.g. In Newton.
  • the course of the load-bearing characteristic curve is characterized by an upper and a lower break-off point, which are respectively achieved when the magnets completely emerge upwards or downwards between the carrier rails, as is shown in the case below in FIG. 1e).
  • the housing accommodating the mounting rails 2a, 2b and providing a horizontal guide for the guide element 3 simultaneously comprises two projections 6a, 6b, each arranged at its lower ends, which limit the possible deflection of the support carriage 4 and thus the mechanical deflection on this rigidly fixed row of magnets 1 in the z-direction.
  • FIG. 3 shows, for a gap width of z. B. -1 mm to +1 mm, a transverse force profile F (y) in response to a lateral displacement y of the magnets 1a, 1b, 1c, 1d, which has a positive slope over the entire course.
  • the guide element 3 Since there is only an unstable equilibrium of forces in the middle position, the guide element 3 must provide a precise mechanical support which moves the magnet row 1 exactly in the center between the support rails 2a during the travel movement of the magnet row 1 in the direction of movement, ie in the x direction. 2b leads. The more precisely this centering can be realized, the lower the resulting transverse force F (y) and the associated frictional forces of the mechanical bearing.
  • the magnet width ie the dimensions of the magnet row 1 or of its individual magnets 1a, 1b, 1c, 1d in the y direction, should be as large as possible, because a large magnet width causes a large field strength, which leads to large bearing forces leads.
  • the height of the magnet that is to say the dimensions of the magnet row or of its individual magnets 1a, 1b, 1c, 1d in the z-direction, should be as small as possible, because small magnet heights increase the rigidity of the load-bearing field by bundling the field.
  • the height of the mounting rails 2a, 2b should be as small as possible, a mounting rail height is less 1/2 the magnetic height, because the field lines of the permanent magnets are bundled and thereby increases the rigidity of the magnetic support system.
  • the arrangement should be selected so that the soft magnetic support rails 2a, 2b in the equilibrium state in which the magnetic load F (z) is the same as the weight force F 9 caused by loading of the magnet row 1 with the door leaf 5, vertically unsymmetrical around the magnet row 1 and the magnetic row 1 should be as continuous as possible in order to avoid cogging forces in the direction of movement, ie in the x direction.
  • FIG. 4 shows a sectional view of a plan view of the support device according to the first preferred embodiment of the invention shown in FIG. 1a along a section line AA.
  • the magnet array 1 consists of individual magnets 1a, 1b, 1c, 1d, which are arranged with alternating magnetization direction between the two laterally arranged mounting rails 2a, 2b, which consist of a soft-magnetic material.
  • the individual magnets 1 a, 1 b, 1 c, 1 d are attached to the movable support carriage 4 to form the magnetic series 1 and can be moved between the rails 2 a, 2 b in the x and z directions.
  • a vertical displacement ie a displacement in the z-direction, about a small path, approximately 3-5 mm, from the zero position, ie the geometrical symmetry position, results, due to the use of extremely strong permanent magnets, e.g. , B.
  • FIG. 5 shows a drive segment of a first preferred embodiment of the drive segment according to the invention in a perspective representation.
  • a coil module according to the invention to be used as a stator module or rotor module consists of three coils 7 with coil cores 12 aligned transversely to the direction of travel and arranged in a U-shaped sheet metal holder 21, from which three contacting and fastening pins 22 protrude in an electrically insulated manner.
  • the coil module can both be fastened and driven by energizing the individual coils.
  • As a common mass can z.
  • FIG. 5a This coil module according to the invention shown in FIG. 5a) is shown in FIG. 5b) inserted into a carrier rail 2d which is in principle U-shaped, with the contacting and fastening pins 22 protruding through the bottom region 26 thereof and between them 51
  • the coil cores 12 holding side walls 27 of the U-shaped sheet metal bracket 21 and side walls 28 of the U-shaped support rail 2d each have an air gap in each of which a series of magnets can be performed, with the support rail 2d and the coil 7 of the coil assembly in interaction is to be held in the air gap and moved in Freundrich ⁇ direction.
  • FIG. 6 shows two drive segments of the first preferred embodiment of the drive system according to the invention, here as a combined magnetic support and drive system, in a sectioned view, in which the magnetic linear drive used according to the invention acts on the magnet rows 1e, 1f are attached to a Trag ⁇ not shown 4 carriage.
  • the two rows of magnets 1e, 1f each have alternately polarized individual magnets, wherein the polarities of the individual magnets of the two rows of magnets 1e, 1f offset in the transverse direction are rectified.
  • Coils 7 are arranged between the magnet rows 1e, 1f such that the respective coil core 12 is in the transverse direction, ie. H. y-direction, extends.
  • On the side facing the coils 7 with Spulenker ⁇ 12 side of the magnetic row 1 is in each case a side region of the support rail 2d.
  • stator coils 7 are arranged with their respective coil cores 12 in different relative positions relative to the grid of the permanent magnets. The more different relative positions are formed, the more uniform the thrust force can be realized over the travel. On the other hand, since each relative position is assigned to an electrical phase of a drive system required for the linear drive, as few electrical phases as possible should be used. Due to the available three-phase three-phase system, a three-phase ges system, as shown by way of example in Figure 7, very inexpensive to build.
  • FIG. 7 shows the interconnection of the coils of the two drive segments shown in FIG. 6 of the linear drive unit used in accordance with the invention.
  • a first coil 7a having a first coil core 12a is connected between a first phase and a second phase of a three-phase three-phase system whose three phases are uniformly distributed, ie the second phase is at 120 ° and a third phase is at 240 °, when the first phase is at 0 °.
  • the second coil 7b with coil core 12b of a drive segment of the linear drive unit lying in the positive drive direction, ie + x direction, next to the first coil 7a with the coil core 12a is connected between the second phase and the third phase and in the positive drive direction -, ie + x direction next to the second coil 7b with the coil core 12b lying third coil 7c with coil core 12c is connected between the third phase and the first phase.
  • a drive segment of the linear drive unit lying drive segments of Linear ⁇ ar drive unit are connected in the same way to the three phases of the three-phase system.
  • FIG. Such a circular phase diagram with drawn coils is shown in FIG.
  • the electric potential is given in V and on the abscissa the magnetic potential.
  • a circle around the origin of this coordinate system which represents a zero potential for both the electrical potential and the magnetic potential, represents the phase positions of the voltage applied to the respective coils, with a 0 ° phase position at the intersection of Is given a circle with the positive ordinate and the phase in the clockwise direction to a 90 ° phase position in the intersection of the circle with the negative abscissa, which represents the magnetic potential of the south pole, a 180 ° -phase position in the intersection of Circle with the negative ordinate, which represents the minimum voltage potential, a 270 ° phase position in the intersection of the circle with the positive Ab ⁇ szisse representing the magnetic potential of the North Pole, up to a 360 ° phase position, the same Q ⁇ phase position is in the intersection of the circle with the positive ordinate, which represents the maximumchrocespo ⁇ potential changes.
  • the hands of these coils now rotate in the counterclockwise direction corresponding to the alternating frequency of the three-phase current, wherein one of the electrical potential difference between the initial and final points of the pointer projected on the ordinate is applied to the coils.
  • phase pass of 180 ° corresponds to a displacement of the rotor by the distance between the centers of two adjacent magnets, ie the magnetic grid R M.
  • a pole change is carried out when the magnet grid RM is displaced.
  • the rotor displacement is two RM.
  • the magnets are again in the starting position relative to the grid R s of the stator coils, comparable to a 360 ° revolution of the rotor of a two-pole DC motor.
  • the ordinate is considered, on which the applied electrical voltage potential is darge.
  • the maximum potential at 180 °, the minimum potential and at 90 ° or 270 °, an average voltage potential.
  • the coils are represented in the diagram by arrows whose start and end points represent the contacts.
  • the respectively applied coil voltage can be read off by projection of start and end point of the arrows on the potential axis.
  • the arrow direction determines the current direction and thereby the magnetization direction of the coil.
  • a controller with a rectangular characteristic can also be used for reasons of cost.
  • FIG. 8 a corresponding phase diagram, which is shown in FIG.
  • the rectangular characteristic is represented by switching thresholds.
  • the phase connections can each assume the three states plus potential, minus potential and potential-free.
  • the plus potential z. B. in a range between 300 ° and 60 ° and the negative potential in a range of 120 ° to 240 ° and the ranges between 60 ° and 120 ° and 240 ° and 300 ° represent the potential-free state in which the coils are not are connected.
  • the more uneven thrust in comparison with the sinusoidal control is disadvantageous.
  • FIG. 11 shows a second preferred embodiment of a coil module according to the invention, in which three coils 7 aligned in the direction of travel are wound on a common coil core 12.
  • the coil core and arranged between the coils 7 square pole pieces 19 are a compact rotary member.
  • For contacting and Befesti ⁇ supply twomaschinetechniks- and mounting pins 22 are provided for each coil 7, which protrude isolated from the pole pieces 19.
  • FIG. 12a) shows two drive segments, ie six individual coils 7, which are arranged in series and whose axes 29 are aligned, whereby between the individual coils 7 are arranged Poi mar 19 whose one side 30 pole faces of a row of magnets 1 with a certain gap-shaped Distance opposite.
  • FIG. 12b shows a view corresponding to FIG. 12a), in which the magnet array 1 is not shown, but flux guides 23 which are arranged on at least the side 30 of the pole shoes 19 which oppose the magnet array 1 with the specific gap-shaped spacing ⁇ stands, wherein the flux guides 23, the coils 7 almost concealed on this page, d. H. the area of the pole pieces 19, which is opposite the row of magnets 1, is increased.
  • FIG. 13 shows two drive segments of the second preferred embodiment of the drive system according to the invention, which are formed here by two coil modules each having six coils, here as a combined magnetic support and drive system in a sectional plan view, in which the magnetic linear drive used in accordance with the invention a three-phase coil arrangement, wherein a Magnet ⁇ row 1 between two Polschuhrucn 18a, 18b, which connect all lying on one side of the magnetic row 1 pole pieces 19 of coils of the linear drive unit.
  • the pole shoes 19 are each formed here with the respective coil core 12 of the coils 7 extending in the drive direction, ie the x direction, as a rotary part and extend to the respective pole shoe strip 18a, 18b in order to ensure a better magnetic field connection.
  • the coils of the two coil modules shown on the pole sides of the individual magnets of the magnet array 1 are connected symmetrically in the same way as in the embodiment described above.
  • the magnetic grid R M 3/2 of the coil grid R s selected.
  • phase diagram of this arrangement corresponds to that of the previously described arrangement in which the coils represented by arrows in the phase diagram form a triangle, the corners of this triangle representing respectively the phases of the control.
  • the corners of the triangle in a rotation through 360 °, which corresponds to a translational movement of the rotor by three coil grids, three voltage potentials: plus, minus and potential-free, when the rectangular drive shown in Figure 9 is selected. Since each coil bridges a phase angle of 120 °, the potential of one phase is changed by a rotation of 60 ° and one of the three phases is always potential-free. If the phase potential is entered in a table as a function of the number of 60 ° rotation steps, the following phase control diagram results:
  • Phase3 - - 0 + + 0 By a shift of the switching threshold to a negative potential between 105 ° and 255 °, a plus potential between 285 ° and 75 ° and potential-free states between 75 ° and 105 ° and 255 ° and 285 °, ähn ⁇ lich the state shown in Figure 10 leaves to realize a control with a step size of 30 °. In this case, two phases can have the same potential, so that no voltage difference is applied to the associated coil and no current flows. In each second 30 ° step, one phase is potential-free.
  • the corresponding 30 ° phase control diagram with 12 control steps results as follows:
  • Phase 2 0 + + + + + + + 0 Phase 3 - - - - 0 + + + + + + 0 -
  • the magnet width ie the dimensions of the magnet row 1 or of their individual magnets in the y direction, should be as small as possible, because the permanent magnets act as air damping on the magnetic circuit of the coil 7.
  • the magnet height so the dimensions The magnet row (s) 1, 1e, 1f or their individual magnets in the z direction should be as large as possible, because a large magnet height leads to a large air gap surface, which helps to reduce the magnetic resistance of the coil circle.
  • a large amount of magnetic material is introduced into the magnetic coil circuit without generating too large field strengths that saturate the magnetic circuit.
  • the height of the pole pieces and / or coil cores 12 should be as large as possible, so that the pole pieces or coil cores 12 reach the largest possible coverage with the magnets, so that there is a large air gap surface with high efficiency and low magnetic resistance.
  • the arrangements tion of these soft magnetic components should achieve the greatest possible vertical overlap between coil cores 12 and pole shoes 19.
  • the coil modules according to the invention can also be used in systems in which the preferably only magnetically mounted support device is provided separately from the drive system according to the invention.
  • FIG. 14 shows various embodiments of rast force-reducing flux-conducting pole shoes 24 according to the invention, which can be attached directly to the coil cores 12 as pole shoes or contain the coil core 12 as such, but directly face the individual magnets 1a, 1b, 1c, 1d of the magnet array and are designed as flux guides, as shown in Figure 14a in a sectional plan view.
  • the flux-conducting pole shoes can be attached directly to the coil cores 12 as pole shoes or contain the coil core 12 as such, but directly face the individual magnets 1a, 1b, 1c, 1d of the magnet array and are designed as flux guides, as shown in Figure 14a in a sectional plan view.
  • the flux guides 23 formed on the pole shoes 19, as shown in FIG. 12, can also have a corresponding shape.
  • diamond-shaped flux-conducting pole shoes 24a are shown in a front view, ie seen from the magnetic row.
  • the over the end face 30 of a z. B. round rod-shaped coil core 12 formschlüs ⁇ sig connected diamond-shaped Flußleit-Pol Mandarin 24a are here in each case designed so that adjacent diamond-shaped Flussieit pole pieces 24a just do not overlap each other in the drive direction, ie x-direction.
  • hexagonal flow-proof pole shoes 24b are seen in a front view, i. H. as seen from the magnetic series.
  • the over the Stirn ⁇ surface 30 of a z. B. round rod-shaped spool core 12 patch hexagonal Flussieit-Polillon 24b are each configured so that do not touch each pointing to an adjacent flux-conducting pole piece 24 gende corners.
  • the hexagonal flux pole shoes 24b are further configured to be movable in a relative direction of movement of the magnet series 1a, 1b, 1c, 1d, d. H. are longer in the x-direction than in the perpendicular direction of support, d. H. in the z direction.
  • FIG. 15 shows various embodiments of inventive detent force reducing individual magnets 1a, 1b, 1c, 1d of the magnet series.
  • Figure 15a simple rectangular individual magnets are shown, where no special rastkraftrredurom measures are realized.
  • FIG. 15b) shows individual slanted magnets, the edges of which in the carrying direction (z-direction) are provided with a thread for reducing the latching force, which is selected such that a hexagon results in the top view. The chamfers of the magnets can be used simultaneously for positive fastening of the magnets.
  • FIG. 15c) shows arched individual magnets whose edges running in the carrying direction (z-direction) are so rounded in order to reduce the latching force that a uniform oval results in the plan view.
  • FIG. 15a simple rectangular individual magnets are shown, where no special rastkraftrreduhot measures are realized.
  • FIG. 15b) shows individual slanted magnets, the edges of which in the carrying direction (z-direction) are provided with a
  • FIG. 15d shows oblique individual magnets whose edges running in the carrying direction (z direction) and pointing towards the coil cores 12 are provided with a chamfer according to FIG. 15b for reducing the latching force.
  • This shape is preferred when the coil cores 12 or flux pole shoes 24, 24a-c or flux conducting pieces 23 are only on one side of the magnets 1a, 1b, 1c, 1d and the individual magnet is to be fixed on the other side by gluing or there is a mounting rail 2a, 2b, 2d.
  • FIG. 15e) shows slanted individual magnets whose edges running in the carrying direction (z-direction) and pointing towards the coil cores are rounded in order to reduce the latching force.
  • This shape is also preferred when the coil cores 12 or flux-pole pieces 24, 24a-c or flux guides 23 are only on one side of the magnets 1a, 1b, 1c, 1d and the individual magnet is to be fixed on the other side by gluing or there is a mounting rail 2a, 2b, 2d.
  • FIG. 16 shows further different embodiments of individual force-reducing individual magnets 1 a, 1 b, 1 c, 1 d according to the invention.
  • the shapes shown in FIG. 15 in order to reduce the latching force, not only in the direction of support, i. H. Z direction, running edges bevelled or rounded, but it is additionally provided a second spatial direction of the individual magnets with a chamfer or Run ⁇ tion to reduce the locking force.
  • hexagonal individual magnets are here seen from the coil cores 12, each of which is designed such that respective corners pointing to an adjacent individual magnet touch further with bevelled edges extending in the carrying direction (z-direction) that z. B. is chosen so that there is a hexagon in the supervision.
  • 17a is a magnet array with simple rectangular Einzelmag ⁇ nets 1a, 1b, 1c, 1d and one consisting of individual coils 7 with coil cores 12 and a soft magnetic return rail 25 coil arrangement in which no special rastkraftrredumpense measures are implemented.
  • FIG. 17c shows a further embodiment of flux-pole shoes 24c, which reduce frictional force, and which directly represent the coil core 12 as pole shoes 19, but the individual magnets 1a, 1b, 1c, 1d of FIG
  • the flux-pole shoes 24c have for the reduction of the latching force in the supporting direction (z-direction) extending and pointing to the magnetic row rounded edges, wherein the
  • Pole shoe 24c may extend.
  • FIG. 17b shows an embodiment with flux-conducting pole pieces, in which extended coil cores 12d protrude in the direction of the magnet series 1a, 1b, 1c, 1d, wherein the protruding part is in each case rounded so that a continuous transition to the coil 7 is formed.
  • a magnet array 1 which consists of a multiple-polarized magnet for reducing the latching force, and a coil arrangement consisting of individual coils 7 with coil cores 12 and a soft-magnetic vomish ⁇ rail 25 is shown.
  • the advantage of one or more multi-polarized individual magnets as a magnetic row 1 is the simpler installation and smoother transitions between the individual poles, resulting in a better reduction of the cogging forces.
  • Figure 19a shows three drive segments of a third preferred
  • Embodiment of the drive system according to the invention preferably used in a sectional plan view, in which the magnetic linear drive preferably used according to the invention a three-phase coil lenanssen has, wherein a row of magnets 1 on one side of the Spulen ⁇ cores 12 facing, the other side is connected to a weichmagneti ⁇ rule return rail 25.
  • the magnetron R M 3/2 of the coil grid R s is selected, ie, three An ⁇ drive coils 7 are arranged on two individual magnets of the magnetic series 1, which form a Polraster, driven by a respective phase of the dreiphasi ⁇ gene drive system become.
  • phase diagram of this arrangement corresponds to that of the arrangement previously described with reference to FIG.
  • phase control diagrams and embodiments relating to the feed properties described in this context can also be used here.
  • FIG. 19b shows the electromagnetic thrust forces to be achieved by the coils in a characteristic curve S, as well as the total thrust force superimposed on the traversing travel of the rotor in a characteristic curve G. It can be seen that the detent force R is sixfold Fre ⁇ frequency of the electromagnetic thrust and about 15% of its amplitude. The wavelength of the detent force R over the travel is denoted by I.
  • the avoidance according to the invention of abrupt changes of the sign of the total magnetization of the at least one magnet row 1, 1e, 1f can be achieved by arranging these permanent magnet rows in linear motor sliding door drives with two or more permanent magnet rows. to be moved.
  • Such a third preferred embodiment of a sliding door according to the invention with a linear drive unit is shown in FIG. 20a).
  • the displacement in a linear drive unit having two rows of magnets 1e, 1f corresponds to half the wavelength I of the ratchet force R. Since the wavelength of the ripple force R is relatively short compared to the wavelength of the electromagnetic thrust S, the displacement is relatively small
  • the magnet rows 1e, 1f mutually associated weakening of Schub ⁇ force negligible.
  • the total restraining forces are obtained by adding the cogging force profiles R1, R2 of the two magnet rows 1e, 1f and the total thrust force by adding the electromagnetic thrust components S1, S2 and the latching forces R1, R2 of the two magnet rows 1e, 1f. Due to the ge strictlyl ⁇ th offset results in an extinction of the resulting cogging forces when their course over the travel is uniform, z. B. sinusför ⁇ mig, whereby the total thrust force is independent of the detent forces. Since the latching forces usually do not run perfectly uniformly, there remains a residual portion which, however, is greatly reduced compared to an arrangement without offset.
  • the same effect can be achieved by subdividing the row of magnets 1 into several areas, which are then displaced relative to one another by a small amount. Such a subdivision of several rows of magnets 1e, 1f and relative displacement of the areas to each other can also be useful for drives with several permanent magnet series and applied.
  • FIG. 21 a) shows one arrangement of a linear drive unit corresponding to the arrangement shown in FIG. 19, in which, according to a second embodiment of the third preferred embodiment according to the invention, groups of two individual magnets are offset from the starting position shown in FIG. 19 a) , In this way, the arrangement within a Polrasters is the same, but the individual Polraster have a slight offset to each other.
  • FIG. 21b) shows corresponding detent force portions of the three magnet groups shown, each consisting of two individual magnets, as well as their respective thrust characteristic curve S.
  • the magnet areas can also consist of only one magnet at a time, so that each magnet is displaced by a slightly different amount than the basic grid shown in FIG. 19a), which is formed by the basic arrangement of magnets and coils or coil cores becomes.
  • the subdivision of rows of magnets and the relative displacement of the areas can also be meaningful for drives with several permanent magnet rows and be used, as already described above.
  • the relative displacement of the individual magnets by a small amount relative to the basic grid can be achieved, for example, by spacers placed between the magnets and slightly larger or smaller than the distance that the magnets would have to follow each other to correspond to the basic grid positions. As shown in FIG. 21c), the best result is achieved if the maximum relative displacement of magnets in a rotor relative to the basic grid corresponds to approximately one wavelength l of the latching force. A similar effect is achieved if the magnets have inaccurate distances corresponding to a stochastic distribution.
  • the individual magnets can also be bevelled or specially shaped for cogging force reduction, which corresponds in principle to the method of superposition and the associated complete or partial extinction of staggered courses of locking force waves, since the slanting can be regarded as a displacement of the magnetic layers, as shown schematically in FIGS. 22a) to 22c), wherein FIG. 22a) shows an unswept magnetic row, FIG. 22b) shows magnets with two magnetic layers shifted in the drive direction and FIG. 22c) shows individual magnets with a multiplicity of magnetic layers displaced relative to each other.
  • the slant can thus be understood as a shift of an infinite number of magnetic layers.
  • FIG. 22d Correspondingly configured diamond-shaped individual magnets are shown in FIG. 22d). Both sides symmetrically beveled magnets, as shown in Figure 22e), the prin- are basically arrow-shaped, do not generate Quertrippelkraft. Magnets, which basically have the shape of a uniform hexagon, with the corners of adjacent magnets abutting each other, as shown in FIG. 22f), achieve in principle the same effect as the individual magnets shown in FIG. 22e), however be made simplified. A similar effect occurs when the individual magnets, as shown in FIG. 22g), have rounded edges in the driving direction, that is to say they are in principle oval.
  • the sliding door according to the invention with the erfindungsge ⁇ MAESSEN magnetic drive system can also be designed so that the only preferably magnetically mounted support means is provided separately from the drive system according to the invention.

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Abstract

La présente invention concerne une porte coulissante comprenant un système de support et/ou d'entraînement magnétique destiné à au moins un battant de porte (5), comprenant: une unité d'entraînement linéaire qui comprend au moins une rangée, disposée dans la direction d'entraînement, d'éléments magnétiques doux ou magnétiques durs (1, 1e, 1f), et au moins un système de bobines qui consiste en une pluralité de bobines individuelles (7a, 7b, 7c) et qui, lorsque les bobines individuelles (7a, 7b, 7c) sont commandées, entre en interaction avec la/les rangée(s) d'éléments magnétiques doux (1, 1e, 1f) pour produire des forces d'avancement; et un dispositif de support magnétique à excitation permanente qui présente au moins une rangée d'aimants (1, 1e, 1f), au moins un élément de support (2a, 2b, 2d) magnétique doux ou magnétique dur qui subit l'action d'une force d'attraction avec au moins l'une des rangées d'aimants (1, 1e, 1f), et un élément de guidage (3) qui garantit la préservation d'un espacement de type écartement donné entre la/les rangée(s) d'aimants (1, 1e, 1f) et l'élément de support (2a, 2b, 2d), la/les rangée(s) d'aimants (1, 1e, 1f) pouvant être formée(s) de la/des rangée(s) d'éléments magnétiques durs (1, 1e, 1f), disposée(s) dans la direction d'entraînement. L'unité d'entraînement linéaire et/ou le dispositif de support de l'invention se caractérise(nt) par des forces de blocages limitées, et la magnétisation totale de la/des rangée(s) d'aimants, ne présente pas de changement brutal de signe dans la direction d'entraînement.
EP05790105A 2004-10-17 2005-10-08 Porte coulissante comprenant un systeme de support et/ou d'entrainement magnetique presentant une rangee d'aimants Withdrawn EP1805386A1 (fr)

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DE200410050341 DE102004050341B4 (de) 2004-10-17 2004-10-17 Schiebetürsystem mit einem magnetischen Trag- und Anttriebssystem mit einer Magnetreihe sowie eine Schiebetür mit einem solchen System
DE200410050328 DE102004050328B3 (de) 2004-10-17 2004-10-17 Schiebetür mit einem magnetischen Antriebssystem mit einer Magnetreihe
PCT/EP2005/010851 WO2006040098A1 (fr) 2004-10-17 2005-10-08 Porte coulissante comprenant un systeme de support et/ou d'entrainement magnetique presentant une rangee d'aimants

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US7608949B2 (en) 2009-10-27
WO2006040098A1 (fr) 2006-04-20
JP2008517571A (ja) 2008-05-22
US20080100152A1 (en) 2008-05-01

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