WO2019105809A1 - Module d'entraînement à vis et ouvrant de véhicule doté d'un module d'entraînement à vis - Google Patents

Module d'entraînement à vis et ouvrant de véhicule doté d'un module d'entraînement à vis Download PDF

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Publication number
WO2019105809A1
WO2019105809A1 PCT/EP2018/081965 EP2018081965W WO2019105809A1 WO 2019105809 A1 WO2019105809 A1 WO 2019105809A1 EP 2018081965 W EP2018081965 W EP 2018081965W WO 2019105809 A1 WO2019105809 A1 WO 2019105809A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle drive
spindle
drive assembly
energy absorption
deformation
Prior art date
Application number
PCT/EP2018/081965
Other languages
German (de)
English (en)
Inventor
Frank Kummer
Eric Bittner
Nicolas Lejeune
Original Assignee
U-Shin Deutschland Zugangssysteme 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
Application filed by U-Shin Deutschland Zugangssysteme Gmbh filed Critical U-Shin Deutschland Zugangssysteme Gmbh
Publication of WO2019105809A1 publication Critical patent/WO2019105809A1/fr

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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
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E05Y2201/212—Buffers
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/34—Form stability
    • E05Y2800/342—Deformable
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/43—Physical or chemical protection against wear
    • 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
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2075—Coaxial drive motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2087—Arrangements for driving the actuator using planetary gears

Definitions

  • the invention relates to a spindle drive assembly for opening and / or closing a vehicle door. Furthermore, the invention relates to a vehicle door, in particular a driving test tailgate or a vehicle trunk lid, with such a spindle drive assembly.
  • the known spindle drive assemblies generally include an electric booster spindle drive, by means of which the associated vehicle door can be opened and / or closed.
  • an electric booster spindle drive by means of which the associated vehicle door can be opened and / or closed.
  • a user of an associated vehicle no longer has to manually open and / or close the vehicle. He only has to send a command to open or close the spindle drive assembly, which he can do for example via a radio remote control or via a switch arranged in the vehicle.
  • a vehicle outside arranged footswitch can be used, which can operate without contact.
  • the object of the invention is therefore to overcome this conflict of objectives and to provide a spindle drive assembly, which can be made both simple and inexpensive, as well as having a long service life.
  • the spindle drive assembly should be as compact as possible.
  • a spindle drive assembly of the genan nth kind comprising a spindle axis along a spindle extending and a spindle coupled to the spindle nut, wherein at one axial end of the spindle a stop assembly is arranged, which is adapted to a mobility of Spindle nut along the spindle drive axis limit, wherein the stop assembly comprises a plastically ver moldable energy absorption component.
  • the stop assembly thus limits a range of movement of the spindle nut.
  • the energy absorption member is adapted to receive the resulting from the emergence of the spindle nut on the stop assembly energy by plastic deformation Ver.
  • the stop assembly limits movement of the spindle nut in an opening direction of the spindle drive assembly.
  • the energy to be absorbed is absorbed by the plastic deformation of the energy absorption component.
  • the energy absorption component can be designed so that it does not spring back or only to a very small extent after an energy absorption process. The energy absorbed by the energy absorption component is thus kept away from the remaining components of the spindle drive assembly. As a result, a long service life of these components is ensured.
  • the spindle drive assembly also includes a spindle drive motor, which may be an electric motor.
  • the energy absorption component is substantially plastically undeformed in a regular operation of the spindle drive assembly.
  • a special performed by means of the spindle drive assembly opening and / or closing operation associated with the spindle drive assembly vehicle flap is assigned to the regular operation.
  • the energy absorption component is not plastically deformed in regular operation substantially. It serves to protect the spindle drive assembly against abnormal loads.
  • the energy absorbing member may be plastically deformed in an overload following operation.
  • An overload sequence operation takes place after an overload event.
  • An overload event occurs when a force acts on the energy absorption component that deviates from the forces acting in normal operation in the direction of higher forces. In particular, this force acts jerkily on the energy absorption component.
  • the energy absorption component prevents such forces from acting on and damaging the components of the spindle drive assembly.
  • An overload event can occur, for example, in the production environment when the spindle drive assembly is installed on an associated vehicle door, but not all other components of the vehicle door are attached to it. Then the weight of the vehicle door is smaller than in the final state and there is a risk that a spring of the spindle drive assembly transferred the vehicle door very quickly in an open position. Then the spindle nut runs on the stop assembly, whereby it exerts a deviating from the regular operation force on them.
  • the spindle drive assembly is also fully functional in a state where the energy absorbing member is plastically deformed to perform an opening and / or closing operation of a motor vehicle door connected to the spindle drive assembly.
  • the plastically deformed energy absorption component does not interfere.
  • the energy absorbing member is substantially plastically undeformed under load by a force of less than about 750N.
  • forces act in the context of static or quasi-static loads on the stop assembly, if by means of the spindle drive assembly trouble-free opening and / or closing operations are carried out connected to this motor vehicle door.
  • the Energyabsorp tion component is not plastically deformed. It is used to protect the spindle drive assembly against forces exceeding 750N.
  • loads of the energy absorption component of less than about 750 N occur.
  • the energy absorption component may be plastically deformed after being subjected to a load of substantially more than 3000 N, in particular substantially 6000 N.
  • Such forces usually occur as dynamic loads. Compared to the 750 N defined above, such loads represent overload events. In order to protect the components of the spindle drive assembly against such loads, these forces are absorbed by a plastic deformation of the energy absorption component. This ensures a long service life of the spindle drive assembly.
  • the energy absorption component is mounted on the spindle. This ensures that the spindle nut can interact reliably with the energy absorption component, if necessary. In addition, a desired relative position of the energy absorption component to the spindle nut can be ensured in a simple manner.
  • the energy absorption component is an energy absorption sleeve, which surrounds the spindle substantially coaxially.
  • a sleeve is simple and inexpensive to produce.
  • the plastic deformation properties of the energy absorbing sleeve can be easily and precisely determined through the geometry of the sleeve and the choice of sleeve material. By surrounding the spindle, the energy absorption sleeve is reliably supported.
  • the energy absorption sleeve may each have a collar at its two axial ends, in particular wherein the collar is a force introduction collar.
  • the collars are essentially completely circumferential at both axial ends.
  • the collars serve to introduce forces into the energy absorption sleeve.
  • one of the collars cooperates with the spindle nut and the other collar with a bearing component.
  • the mechanical stress conditions within the energy absorption sleeve can be designed such that adjust the desired deformation effects at predetermined load en.
  • it can be ensured via the collars that deforms the energy absorption sleeve in the desired shape, even if the relative position of the energy absorbing element to the spindle nut is fraught with tolerances.
  • the energy absorption component comprises a deformable in the direction of the spindle drive axis deformation portion.
  • the plastic Ver deformability of the energy absorption component is thus ensured essentially by the compressibility of the deformation section. Any existing collars or the remaining components of the energy absorption component remain substantially plastically undeformed.
  • the deformation portion may be a tubular sleeve portion.
  • the deformation portion is formed such that it can absorb one or more power surges, in particular two power surges, by axial compression, in particular wherein the axial length of the deformation section is selected such that it can absorb multiple power surges by axial compression.
  • the deformation portion may comprise several, in particular two, deformation areas, wherein both deformation areas in the direction of the spindle drive axis are compressible.
  • the deformation regions may be designed geometrically adjacent to one another or geometrically overlapping.
  • the deformation areas are designed such that in an overload event substantially only one deformation area is plastically deformed.
  • the number of proposed deformation ranges thus corresponds to a number of over load events, in which the energy absorption component, the spindle drive assembly from the negative influences can protect an overload.
  • all deformation regions are substantially undeformed and / or plastically deformed in an overload sequence operation of one of the deformation regions and / or two of the deformation regions are plastically deformed in a secondary overload sequence operation.
  • a secondary overload follow-up operation is an operating situation in which, on the basis of the overload sequence operation, a further overload event has occurred.
  • secondary overload sequence operation two overload events have occurred in total.
  • the energy absorption component is plastically undeformed in regular operation.
  • a first overload event then leads to the plastic deformation of a first deformation region.
  • the overload sequence operation sets in.
  • the first deformation area remains plastically deformed.
  • a second deformation area is plastically deformed.
  • the spindle drive assembly is in secondary overload following operation and both deformed deformation areas remain plastically deformed.
  • the energy absorption member along the spindle drive shaft between a spindle end side bearing plate and the spindle nut is arranged, in particular wherein the bearing disc is made of a metal material.
  • the energy absorption component is thus reliably stored.
  • the bearing disc also represents a stop for the energy absorption component, where it rests during the plastic deformation. Thus, a reliable energy absorption is guaranteed.
  • a bearing element for supporting the spindle can be provided on a spindle drive housing housing between the energy absorption component and the bearing disc.
  • the Energyabsorp tion component thus acts on the bearing element with the bearing disc. This configuration allows a particularly compact design of the spindle drive assembly.
  • the thrust washer is made of a metal material.
  • the contact between the spindle nut and the energy source absorption component thus takes place via the thrust washer. This ensures that the kinetic energy emanating from the spindle nut is reliably converted into a plastic deformation of the energy absorption component.
  • the energy absorption component can be produced from a metal material, in particular from a metal sheet, or from a plastic material, in particular from polyoxymethylene (POM).
  • a metal material in particular from a metal sheet
  • a plastic material in particular from polyoxymethylene (POM).
  • a vehicle flap of the type mentioned which comprises a spindle drive assembly according to the invention.
  • a vehicle door is particularly reliable in operation and has a long service life.
  • FIG. 1 shows schematically a vehicle flap according to the invention with a spindle drive assembly according to the invention mounted thereon by means of a method according to the invention;
  • FIG. 2 shows the spindle drive assembly from FIG. 1 in a schematic sectional view
  • FIG. 3 shows the spindle drive assembly from FIG. 1 in an exploded view
  • FIG. 4 shows the spindle drive assembly from FIG. 1 in a sectioned position
  • FIG. 5 is a perspective view of a spindle drive motor of the spindle drive assembly of FIG. 1, FIG. 6 schematically shows the interaction of the spindle drive motor from FIG. 5 with a spindle drive housing housing in a partially sectioned illustration,
  • FIG. 7 schematically shows an end view of the spindle drive motor from FIGS. 5 and 6 and a housing cap which can be connected to the spindle drive motor
  • FIG. 8 is an exploded view of a two-stage Umlaufgangetrie bes the spindle drive assembly of Figure 1, which can be mounted by means of a erfindungsge MAESSEN method,
  • FIG. 9 shows a further exploded view of the two-stage epicyclic gearbox of the spindle drive assembly of FIG. 1, the epicyclic gearbox being partially mounted by means of a method according to the invention, FIG.
  • FIG. 10 shows an exploded view, comprising a two-stage epicyclic gearbox, a clutch, a hysteresis brake and a spindle drive motor, of the spindle drive assembly of FIG. 1,
  • FIG. 11 shows a spindle unit of the spindle drive assembly from FIG. 1 in an exploded view
  • FIG. 12 shows a detail of the spindle unit from FIG. 11,
  • FIG. 13 is a detail of the spindle drive assembly of Figure 1 in a sectional view
  • Figure 14 shows a further detail of the spindle drive assembly of Figure 1 in a sectional view.
  • FIG. 1 shows a vehicle door 10, which in the present case is a vehicle tailgate, with a spindle drive assembly 12, by means of which the vehicle door 10 can be opened and / or closed.
  • the spindle drive assembly 12 includes a spindle drive assembly housing 14 that extends along a spindle drive axis 16.
  • the spindle drive housing housing 14 between its axial ends 14a, 14b an axially acting on both sides stop portion 22.
  • the motor gear unit 18 is disposed on a first axial side 22a of the stopper portion 22 and the spindle unit 20 on a second, the first axial side 22a opposite axial side 22b ,
  • Both the motor gear unit 18 and the spindle unit 20 abut against the abutment portion 22.
  • the motor gear unit 18 is mounted in the spindle drive assembly housing 14 via two damping elements 24a, 24b made of an elastomer.
  • the spindle unit 20 comprises, in addition to a spindle 26 and a spindle nut 28 coupled thereto, a guide tube 30.
  • the guide tube 30 is attached to the spindle drive assembly housing 14. More specifically, the guide tube 30 is laser welded to the spindle drive assembly housing 14. The laser weld 32 is shown only schematically.
  • the stopper portion 22 is integrally formed with the housing housing 14 Spindelantriebsbauopathy.
  • the spindle drive assembly housing 14 is made of a plastic.
  • the stop section 22 is produced by means of injection molding of the spindle drive assembly housing 14.
  • the spindle drive assembly housing 14 additionally includes a housing cap 14 c. This completes the spindle drive assembly housing 14 motor gear unit side.
  • the housing cap 14c and the spindle drive assembly housing 14 are laser welded.
  • the laser weld 34 is shown again only schematically.
  • the assembly of the spindle drive assembly 12 is as follows.
  • the spindle drive assembly housing 14 is provided.
  • the motor gear unit 18 is inserted into the spindle drive assembly housing 14 from a first axial side of the spindle drive assembly 14, on which the axial end 14b is located in the example shown.
  • the motor gear unit 18 is applied to the first axial side 22 a of the stopper portion 22.
  • the spindle unit 20 is inserted from one of the first axial side of the spindle drive assembly housing 14 opposite, second axial side 22 b of the spindle drive assembly housing 14 in this.
  • the axial end 14 a is arranged on this page.
  • the spindle unit 20 is applied to the second axial side 22 b of the stopper portion 22.
  • the spindle unit 20 When the spindle unit 20 is set in the spindle drive assembly housing 14, it is fixed therein.
  • the spindle unit 20 includes a guide tube 30 that is secured to the spindle drive assembly housing 14 by the laser weld 32.
  • the spindle drive assembly housing 14 and the guide tube 30 are thus laser welded.
  • the spindle drive assembly housing 14 is closed at the end 14b by means of a housing cap 14c.
  • the spindle drive assembly housing 14 with the housing cap 14c laserver welded will be closed at the end 14b.
  • the motor gear unit 18 includes a spindle drive motor 36 coupled to a transmission 40 via a motor shaft 38.
  • FIGS. 5-7 show the spindle drive motor 36 in detail.
  • the motor gear unit 18 is arranged in the spindle drive assembly housing 14, and the spindle drive motor 36 in the housing housing 14 Spindelantriebsbau is positioned.
  • the motor shaft 38 is substantially coaxial with the spindle drive axis 16.
  • the spindle drive motor 36 and thus the motor gear unit 18 are also rotationally fixed in the spindle drive assembly housing 14 via a form fit with respect to the spindle drive shaft 16.
  • the spindle drive motor 36 is rotationally fixedly mounted on the housing cap 14 c via a positive connection, which is a component of the spindle drive assembly housing 14.
  • the rotationally fixed bearing takes place via a motor housing 42 of the spindle drive motor 36.
  • two anti-rotation projections 44a, 44b are provided in the illustrated embodiment which, in the mounted state of the spindle drive motor 36 and thus also of the motor gear unit 18, extend essentially along the spindle drive axis 16.
  • the anti-rotation projections 44a, 44b are circular-cylindrical, with the associated circular cylinder center axes 46a, 46b extending substantially parallel to the spindle drive axis 16 in the mounted state of the spindle drive motor 36.
  • the anti-rotation projections 44a, 44b are provided on an axial end side 48 of the spindle drive motor 36, which faces away from the motor shaft 38. In the mounted state, the anti-rotation projections 44a, 44b thus lie on a side of the spindle drive motor 36 opposite the gear 40.
  • the Antirotationsvorsprünge 44 a, 44 b engage in the assembled state in associated, provided on the Spindelantriebsbuluigephase 4 recesses 50 a, 50 b. In the illustrated embodiment, the recesses 50a, 50b are provided on the housing cap 14c.
  • the recesses 50 a, 50 b provided on the damping element 24 b, the rotation with the housing cap 14 c is connected.
  • the anti-rotation projections 44a, 44b may alternatively engage in the recesses 50a, 50b via elastic damping caps disposed on the anti-rotation protrusions 44a, 44b or via elastic damping elements disposed in the recesses 50a, 50b.
  • a first electrical power connection 52, a second electrical varnish circuit 54 and a sensor port 56 on the axial end side 48 of the spindle drive motor 36 are provided in the illustrated embodiment.
  • the transmission 40 is a two-stage Umlaufer- gear 58.
  • first epicyclic gear stage 58a which is also referred to as a motor-side or drive-side epicyclic gear stage 58a
  • second epicyclic gear stage 58b which is also referred to as a spindle-side or driven-side epicyclic gear stage 58b.
  • the epicyclic gear 58 is helical. Both epicyclic gear stages 58a, 58b have the same direction spiral teeth.
  • the two-stage epicyclic gear 58 comprises only a single, singular planet carrier 60. This therefore belongs to both epicyclic gear stages 58a, 58b.
  • both the engine-side epicyclic gear stage 58a and the spindle-side epicyclic gear stage 58b include an equal number on planet gears 62a, 62b.
  • each of the epicyclic gear stages 58a, 58b includes four planet gears 62a, 62b.
  • a planetary gear 62a of the first epicyclic gear stage 58a and a planetary gear 62b of the second epicyclic gear stage 58b are mounted on a common planetary gear axis 64.
  • the epicyclic gear 58 functions as follows.
  • the motor shaft 38 is rotatably coupled to a sun gear 66 of the epicyclic gear stage 58a on the engine side.
  • the sun gear 66 is the drive or the torque input of the epicyclic gear 58.
  • a transmission input shaft 70 is coupled to the sun gear 66.
  • the clutch 68 is in the illustrated embodiment, an Oldham clutch to compensate for misalignment.
  • only one transmission-side coupling part 69 can be seen, which is connected to the transmission input shaft 70.
  • the sun gear 66 cooperates with the planet gears 62a of the engine-side planetary gear stage 58a, which in turn are coupled to a ring gear 72 of the engine-side epicyclic gear stage 58a.
  • the ring gear 72 is rotatably and axially fixed in the spindle drive assemblies housing 14 and / or mounted in a planetary gear housing 74.
  • the ring gear 72 is thus substantially fixed in space.
  • the motor-side epicyclic gear stage 58a is coupled to the spindle-side epicyclic gear stage 58b both via the singular planet carrier 60 and via the one-piece planet wheels 62a, 62b.
  • the spindle-side epicyclic gear stage 58b is designed sun-wheel-free.
  • the planetary gears 62b of the spindle-side epicyclic gear stage 58b are mounted only radially on an axial bearing extension 76 of the sun gear shaft of the motor-side epicyclic gear stage 58a.
  • the sun gear shaft corresponds to the transmission input shaft 70.
  • the planetary gears 62b of the spindle-side epicyclic gear stage 58b are further coupled to a ring gear 78 of the spindle-side epicyclic gear stage 58b.
  • This ring gear 78 is rotationally coupled via a coupling 80 with the spindle 26.
  • the ring gear 78 is rotatably mounted in the spindle drive assembly housing 14 and / or in the planetary gear housing 74.
  • the ring gear 78 thus represents the output or the torque output of the epicyclic gear 58.
  • the epicyclic gear 58 can be mounted as follows.
  • the planetary carrier 60 is inserted into the ring gear 72 of the drive-side epicyclic gear stage 58a or into the ring gear 78 of the output-side epicyclic gear stage 58b.
  • the epicyclic gear housing 74 is provided and connected to the ring gear 72.
  • epicyclic gear housing 74 is laser welded to ring gear 72 in a lap joint.
  • epicyclic gear housing 74 is laser light transmissive.
  • each planet gear 62a of the first epicyclic gear stage 58a includes twelve teeth and each planetary gear 62b of the second epicyclic gear stage 58b six teeth.
  • the ratio of 2: 1 corresponds to the interval of an octave, when it is related to a ratio of sound frequencies.
  • the spindle drive assembly 12 emits during operation So sound frequencies that form an octave. This is perceived by vehicle users as particularly pleasant.
  • the ratio of the numbers of teeth of each of the planetary gears 62a of the first epicyclic gear stage and the number of teeth of each of the planetary gears 62b of the second epicyclic gear stage may be set to 3: 2, 4: 3, 5: 4 or 6: 5.
  • the emitted sound frequencies then form a fifth, a fourth, a major third or a minor third. These intervals are also perceived as pleasant by humans.
  • the ratio of the number of teeth of each planetary gear 62a of the first epicyclic gear stage 58a and the number of teeth of each planetary gear 62b of the second epicyclic gear stage 58b is selected so that, in operation, a first sound frequency emitted from the first epicyclic gear stage 58a is an integer Many times a half-tone compared to a second sound frequency emitted by the second epicyclic gear stage 58b deviates.
  • the preferred embodiment of the octave comprises twelve semitone steps, the fifth of the fifth, the fifth of the fifth, the third of the major third, and the minor third of three.
  • the coupling of the spindle drive motor 36 to the transmission 40, more specifically to the two-stage epicyclic gear 58, is shown in detail in FIG. In this case, the spindle drive motor 36 and the gear 40, the axis offset compensating clutch 68 and a hysteresis 82 are drivingly interposed.
  • the clutch 68 is an Oldham clutch and comprises a drive motor-side coupling part 84 and the transmission-side coupling part 69 (see Figure 8).
  • the two coupling parts 69, 84 are connected to each other via a coupling intermediate part 86 such that the motor shaft 38 and the transmission input shaft 70 are rotatably connected to each other.
  • the intermediate coupling part 86 in the mounted state along a direction 88 relative to the drive motor-side coupling part 84 ver pushed.
  • the transmission-side coupling part 69 is relative to the intermediate coupling part 86 along a direction 90 slidably.
  • the direction 88 and the direction 90 are substantially right angle to each other.
  • an axial offset between the motor shaft 38 and the transmission input shaft 70 can be compensated according to the operating principle of Oldhamkupplung.
  • the hysteresis brake 82 includes a fixed hysteresis brake member 92 which is secured to the spindle drive assembly housing 14 and / or the epicyclic gear box 74.
  • hysteresis brake 82 has a rotatable hysteresis brake component 94 which is rotatably coupled to motor shaft 38.
  • FIGS. 1 1 - 14 show the spindle unit 20 in detail.
  • a stop assembly 96 is arranged at one axial end of the spindle 26, which is designed to limit the mobility of the spindle nut 28 ent long the spindle drive shaft 16. Specifically, the spindle nut 28 is prevented from moving beyond the end of the spindle 26.
  • the abutment assembly 96 comprises a plastically deformable energy absorption component 97, which in the illustrated embodiment is designed as an energy absorption sleeve 98, which surrounds the spindle 26 substantially coaxially.
  • the energy absorption sleeve 98 is thus mounted on the spindle 26.
  • the energy absorption sleeve 98 is arranged along the spindle drive axis 16 between a spindle end bearing disc 100 and the spindle nut 28 (see in particular FIG. 14).
  • a bearing element 102 for supporting the spindle 26 on the spindle drive housing 14 is provided.
  • Both the bearing disk 100 and the thrust washer 104 are made of a metal material in the illustrated embodiment.
  • the energy absorption sleeve 98 has at each of its two axial ends a collar 106a, 106b designed as a force introduction collar.
  • the deformation section has only a single deformation area. In alternative embodiments, however, it can comprise several, in particular two deformation regions, wherein both deformation regions can be compressed in the direction of the spindle drive axis 16.
  • the energy absorption sleeve 98 is substantially plastically undeformed (see in particular Figures 12 to 14). In normal operation, loads of the energy absorption sleeve 98 which only include forces of less than 750 N occur.
  • a load on the energy absorption sleeve 98 with a force of substantially more than 3000 N represents an overload event for the illustrated embodiment.
  • the energy absorption sleeve 98 is plastically deformed.
  • Such an overload event occurs when the spindle nut 28 runs on the stop assembly 96, more specifically the energy absorption sleeve 98, at too high a speed and / or too high a force.
  • an overload event may occur during assembly of the vehicle door 10, although the spindle drive assembly 12 is already connected to the vehicle flap 10, but still other components of the vehicle door 10 is missing.
  • the vehicle door 10 is then significantly lighter than in the operation of an associated vehicle for which the spindle drive assembly 12 is designed.
  • the spindle drive assembly 12 can be transferred by means of an unspecified spring in an open position. Due to the relatively low weight of the vehicle door, the spindle nut 28 then runs too fast on the stop assembly 96.
  • the energy absorption sleeve 98 absorbs the energy resulting from the excessive speed and / or the excessive force and thus protects the remaining components of the Spindelantriebsbau group 12 from damage.
  • the spindle nut 28 is shown adjacent to the energy absorption sleeve 98. However, for the sake of better clarity, this is shown in its plastically undeformed state.
  • the energy absorption sleeve 98 includes a plurality of deformation ranges, only one of the deformation regions is plastically deformed in the overload sequence operation.
  • the spindle drive assembly 12 enters a secondary overload sequence operation, in which further the opening and closing of the vehicle door 10 by means of the spindle drive assembly 12 is ensured.

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  • Power-Operated Mechanisms For Wings (AREA)

Abstract

L'invention concerne un module d'entraînement à vis (12) pour ouvrir et/ou fermer un ouvrant de véhicule, ce module comprenant une vis (26) s'étendant le long d'un axe d'entraînement de vis (16) et un écrou (28) accouplé à la vis (26). Un ensemble de butée (96) est disposé à une extrémité axiale de la vis (26) pour limiter la mobilité de l'écrou (28) le long de l'axe d'entraînement de vis (16). Cet ensemble de butée (96) comprend un élément d'absorption d'énergie (97) plastiquement déformable. L'invention concerne en outre un ouvrant de véhicule doté d'un tel module d'entraînement à vis (12).
PCT/EP2018/081965 2017-11-30 2018-11-20 Module d'entraînement à vis et ouvrant de véhicule doté d'un module d'entraînement à vis WO2019105809A1 (fr)

Applications Claiming Priority (2)

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DE102017128387.0A DE102017128387A1 (de) 2017-11-30 2017-11-30 Spindelantriebsbaugruppe sowie Fahrzeugklappe mit einer Spindelantriebsbaugruppe
DE102017128387.0 2017-11-30

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WO2019105809A1 true WO2019105809A1 (fr) 2019-06-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113217576A (zh) * 2021-05-14 2021-08-06 宁波华楷电子科技有限公司 一种用于电动尾门撑杆的新型阻尼结构
WO2023194364A1 (fr) * 2022-04-05 2023-10-12 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Dispositif d'entraînement pour un élément de fermeture d'un véhicule automobile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020113958A1 (de) 2020-05-25 2021-11-25 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Antrieb zur motorischen Verstellung eines Verstellelements eines Kraftfahrzeugs
DE102022104079A1 (de) * 2022-02-22 2023-08-24 U-Shin Deutschland Zugangssysteme Gmbh Spindelbaugruppe für eine Spindelantriebsvorrichtung

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US5829727A (en) * 1995-06-09 1998-11-03 Ikeda Bussan Co., Ltd. Powered seat slide device
EP2196612A2 (fr) * 2008-12-09 2010-06-16 SUSPA GmbH Actionneur d'axe doté d'un accouplement de surcharge
US20150069869A1 (en) * 2013-09-06 2015-03-12 Brose Fahrzeugteile GmbH & Co., KG, Hallstadt Drive device for a hatch of a motor vehicle

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Publication number Priority date Publication date Assignee Title
US5829727A (en) * 1995-06-09 1998-11-03 Ikeda Bussan Co., Ltd. Powered seat slide device
EP2196612A2 (fr) * 2008-12-09 2010-06-16 SUSPA GmbH Actionneur d'axe doté d'un accouplement de surcharge
US20150069869A1 (en) * 2013-09-06 2015-03-12 Brose Fahrzeugteile GmbH & Co., KG, Hallstadt Drive device for a hatch of a motor vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113217576A (zh) * 2021-05-14 2021-08-06 宁波华楷电子科技有限公司 一种用于电动尾门撑杆的新型阻尼结构
CN113217576B (zh) * 2021-05-14 2023-11-03 宁波华楷电子科技有限公司 一种用于电动尾门撑杆的新型阻尼结构
WO2023194364A1 (fr) * 2022-04-05 2023-10-12 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Dispositif d'entraînement pour un élément de fermeture d'un véhicule automobile

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