EP1133611B1 - Leve-vitre dote d'un dispositif anti-blocage - Google Patents

Leve-vitre dote d'un dispositif anti-blocage Download PDF

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Publication number
EP1133611B1
EP1133611B1 EP00958526A EP00958526A EP1133611B1 EP 1133611 B1 EP1133611 B1 EP 1133611B1 EP 00958526 A EP00958526 A EP 00958526A EP 00958526 A EP00958526 A EP 00958526A EP 1133611 B1 EP1133611 B1 EP 1133611B1
Authority
EP
European Patent Office
Prior art keywords
spring
drive
window lifter
spring element
pane
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.)
Expired - Lifetime
Application number
EP00958526A
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German (de)
English (en)
Other versions
EP1133611A1 (fr
Inventor
Klaus Marscholl
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.)
Kuester Automotive Door Systems GmbH
Original Assignee
Kuester Automotive Door Systems 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 Kuester Automotive Door Systems GmbH filed Critical Kuester Automotive Door Systems GmbH
Publication of EP1133611A1 publication Critical patent/EP1133611A1/fr
Application granted granted Critical
Publication of EP1133611B1 publication Critical patent/EP1133611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/41—Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
    • 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
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/44—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by one or more lifting arms
    • E05F11/445—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by one or more lifting arms for vehicle windows
    • 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
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/48—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes
    • E05F11/481—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows
    • E05F11/483—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows by cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/47—Springs; Spring tensioners
    • E05Y2201/474—Compression springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable or movable
    • E05Y2600/11—Adjustable or movable by automatically acting means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/55—Windows

Definitions

  • the invention relates to a window regulator, in particular for Motor vehicles with a motorized drive for lifting and Lowering the disc, which over gear components such.
  • B. Worm and worm wheel or gear, on a drive element acts and interacting with the drive element Actuating means moved up and down, and with one Pinch protection for switching off and reversing if necessary of the drive when the disc hits an obstacle in the Locking ..
  • Such window regulators for motor vehicles are, for example known from DE 33 03 590 A1.
  • the pinch protection is used to prevent dangerous situations, such as Pinching a hand, finger, or the like Body part between the window pane and the door frame of the Motor vehicle.
  • Window lifters with pinch protection must therefore meet strict test standards, which are reflected, for example, in Europe and the US differ significantly.
  • a window regulator of the type mentioned is from the DE 196 18 853 C1 known.
  • the window regulator points at least a spring in the power flow between the electric motor and Gear unit formed drive unit and the window pane.
  • the blocking force of the spring corresponds at most to the sum of the expected adjustment force and the permissible pinching force.
  • the spring characteristic of the spring shows when the Preload force a degressive, especially negative course on so that the spring when the preload is exceeded a comparatively large path of the drive unit allows.
  • a cable window lifter from DE 69 309 807 T2 known. niese publication discloses a window regulator a pinch protection to switch off and if necessary reverse the drive when the disc hits Obstacle in the closing path.
  • a coil spring is coaxial arranged to pull the window regulator, the Coil spring with one end on a fixed Plate and with the opposite end on one element supports, which is suitable from the rope by friction shifted to this against the restoring force of the spring become.
  • the element is a tubular part, which one has a side foot that is in contact with a electrical switch works together. The switch is on attached to a fixed support.
  • the rope has to transmit to lift the window, one predetermined value corresponding to the preload force of the spring does not exceed, the rope keeps the friction element in one such a position in which the lateral foot the electrical Switch operated. If, however, as a result of the occurrence of a Obstacle in the closing path of the window limit specified by the preload of the spring is exceeded, the friction element moves with the lateral foot against the restoring force of the spring, which consequently is squeezed. So the switch is no longer off the side foot operated, so that the change of Switching status of the switch to trigger a command to Reversing the direction of rotation of the motor can be used.
  • This known cable window regulator has the disadvantage that the response time of the safety circuit is quite long and does not meet current requirements. Besides, can the frictional resistance between the friction element and the rope over the life of the window regulator, in particular taking into account the possibly rough Operating conditions, change so that in and of itself high response time of the well-known window regulator not even reproducible or largely is constant.
  • the closing force of the Window lifter drive when the pane hits Do not exceed an obstacle value of 100 N.
  • the test specimen consists of a spring, the spring constant of which according to the European requirements in the value range between 10 N / mm and 20 N / mm moved.
  • the reaction distance is reduced for the test spring constant even to just 5 mm.
  • test spring should have a spring constant of 65 N / mm and the closing force must also not exceed 100 N. Accordingly, the control and regulating electronics of the drive within a reaction distance of less than 1.5 mm speak to. To meet this test criterion, there is a Possibility in it, the sensitivity of the tax and Control electronics increase because of an armature revolution of the currently used drive motor already a disc stroke of 2 mm performs. Another option is to use another one Motors with a higher transmission gear, which may be the use of new control and regulating electronics can pull. Both solutions therefore lead to a new concept of the drive and thus at considerable costs.
  • the object of the invention is one Cable window regulator of the type mentioned in this regard to train that while maintaining the current Drive stricter requirements for pinch protection, such as for example, in accordance with those applicable in the USA or Europe Standards.
  • a window regulator of the type mentioned essentially solved in that between drive, preferably between a transmission component of the Drive, and the drive element a game and an between Drive and drive element acting spring element with im essential linear spring characteristic are provided, the Spring element generates a preload and the spring constant of the spring element is dimensioned such that when closing the At least part of the pane without the occurrence of an obstacle a travel reserve is retained, which at the Window closing movement with obstacle at least partially is used up.
  • the value of the extension the reaction distance and reaction time falls accordingly Value of the existing travel reserve, which, for example Can be 10 mm. It can also be used with current Drives and the control electronics are stricter Requirements for anti-trap protection, especially those in the USA applicable test standards are met.
  • the normal one Closing movement of the disc without an obstacle remains essentially unaffected since the spring element is practically not claimed here. They too two known window regulators with negative spring characteristics avoided by the invention. Because in the event of jamming Spring force increases further due to the linear characteristic weather-related stiffness of the window regulator or moving to the closed position is not a trapping event recognized.
  • the invention makes it possible existing control for windows on different Simple means of pinching detection adjust.
  • the spring element has the invention has a spring force which is greater than that from the weight of the disc and that when moving the Disc resulting friction forces resulting displacement and is preferably smaller than that when the pane is closed traction exerted by the drive.
  • a spring force which is greater than that from the weight of the disc and that when moving the Disc resulting friction forces resulting displacement and is preferably smaller than that when the pane is closed traction exerted by the drive.
  • D standard is the spring constant of a test specimen known from a test standard for pinch protection
  • D total indicates the resulting spring constant, which results when the test spring and spring element are connected in series.
  • This equation describes the series connection of two springs, namely the spring element and the test spring. This ensures that the resulting spring constant D total can be selected in a range that can be controlled for the current drive and its control and regulating electronics, for example between 10 N / mm and 20 N / mm.
  • the lower limit value of 10 N / mm for D total and a value for the spring constant of the test specimen, for example 65 N / mm corresponding to the US test standard, are inserted into the equation for D standard and then the upper permissible value for the Spring constant of the spring element D F determined.
  • the upper permissible value for the spring constant of the spring element D F is obtained accordingly.
  • the spring element according to the invention is not only with a special window regulator, but with all electric motor-driven window lift systems, be it now single or multi-strand cable systems, rack and pinion systems, Scissor window lifters or the like, are used can.
  • the window regulator is a scissor window regulator is, the fasteners are as direct or indirect on the window pane attacking, pivotable against each other Leg trained.
  • the drive element is designed as a rotatably mounted rope drum and the Actuating means as two strands of rope one with the Cable drum connected cable.
  • the Spring element as a helical compression spring or as a torsion spring or the like is formed.
  • the drive or worm wheel and rope drum Damping element e.g. B. a damper arranged.
  • the damper can optionally also have a recording in which the Spring element is held or guided. So far there is no need advantageous further measures for fixing the spring element.
  • the Cable does not have an outer shell.
  • Such an outer shell is unnecessary for window regulators of this type, which run straight between the deflection points.
  • An example of such a window regulator is in the German one Patent application P 199 43 338.0 described by express reference to the disclosure content of the present application is included.
  • the cable winch Cable systems with an outer cover.
  • Another Possibility to solve the problem with cable window regulators, which is a cable with an outer shell have in German patent application 198 36 705 described by express reference in the Disclosure content of the present application is included.
  • the spring element in a housing for the drive or the cable drum is included. This is for a protected Housing the spring element taken care of, dirt or the same external influences in motor vehicle operation Functionality of the spring element even over long periods cannot interfere.
  • the cable window 1 shown in Fig. 1 with Pinch protection for motor vehicles has a drive 2, a rope drum 9 for closing and opening a pane set in rotation.
  • the cable pull is around the cable drum 9 looped and performed in a total of eight, so that two in essentially parallel cable strands of the cable pull each be moved up or down according to the direction of rotation of drive 2.
  • the window pane is over Driver connected, possibly in guide rails are led.
  • By rotating the cable drum 9 in one or in the other direction there is an up or down movement of the Driver and thus to an opening or closing movement of the Disc.
  • the drive 2 drives, for example, via a worm Worm gear 3, the worm gear 3 and the cable drum 9 are coupled to each other with play, d. that is Worm gear 3 or another gear component Relative movement, preferably a relative rotary movement with respect the rope drum 9 can execute.
  • the Drive 2 or a gear component and the cable drum 9 Spring element 7 arranged or clamped.
  • the spring element 7 generates a bias between the drive 2 and the Cable drum 9 and thus builds up a travel reserve.
  • the spring element has a linear spring characteristic.
  • the spring element 7 be designed as a helical compression spring, which preferably in a recording of the damper 5, which with the cable drum 9 or the claw 6 of the cable drum 9 is connected, is arranged.
  • the spring element 7 formed as a torsion spring, the axis 8 of the worm wheel wrapped in an arc and with two V-shaped, in essentially radially projecting spring legs between the Claw 6 and the spoke 4 are resiliently supported. It goes without saying that the spring element 7 regardless of the special in the 3, 4 training shown between others Components of the drive 2 and the cable drum 9 may be arranged can.
  • the spring constant of the spring element 7 is dimensioned such that when closing the window without an obstacle at least part of a travel reserve is retained, which at least with the window closing movement with obstacle is partially used up.
  • This travel reserve serves the reaction path and so that the response time to detect an obstacle in the Extend the closing path of the disc. This makes it possible with one and the same window regulator both European Test standard for pinch protection to meet as well currently much stricter US standards.
  • test spring constant be 65 N / mm and the closing force should also have a value of 100 N may not exceed.
  • the Control and regulating electronics of the drive 2 within one Reaction distance of less than 1.5 mm must respond. This Requirement is not with the previous pinch protection or only after significant costs for a more sensitive tax and Control electronics and / or a motor with a higher Gear ratio can be met.
  • the embodiment selected here can have a travel reserve up to to be 10 mm, so that a sufficient reaction path for the Current control and regulating electronics of the drive 2 is present and therefore the stricter requirements of 65 N / mm for the spring test rate from the USA.
  • D total is the spring constant resulting from the series connection of two springs, D standard the test spring constant and D F the spring constant of the spring element 7.
  • the lower limit value of 10 N / mm that can be controlled for the control and regulating electronics of the current drive 2 for D total and for D Norm for example, the test spring rate according to the US guidelines is used of 65 N / mm used.
  • the lower permissible value for the spring constant D F of the spring element 7 is correspondingly obtained by using the upper controllable limit value of 20 N / mm for the current electronics for D total . This means that even the window lifter with control electronics for pinch protection designed according to the European test standards can meet the stricter requirements from the USA if the spring constant of the spring element has a value range between approximately 12 N / mm and 33 N / mm.
  • the spring force of the spring element 7 be so dimensioned that it is larger than that from the Weight of the disc and that when moving the disc resulting shifting forces and smaller than that when closing the disc from drive 2 exerted traction. This ensures that Spring element 7 when closing the disc without the occurrence of a Obstacle in the closing path, apart from the area in which the window enters the seal of the door frame, is not or almost not compressed. Only when that Washer engages in the area of the seal of the door frame and reaches the upper end position, the spring element 7 stressed by the drive-side tensile force and may go into block position, so that a Stop damping is reached.
  • FIG 5 a so-called scissor window lifter is shown with two pivots that can be swiveled in the manner of scissors Legs 10, 11 attack the free ends of the disc.
  • a drive element for initiating the pivoting movement is a Gear 12 provided on which the drive of the window lifter attacks.
  • Such a scissor window lifter is, for example, in EP 0 577 319 A1.

Claims (11)

  1. Lève-vitre, notamment pour véhicules automobiles, comportant un dispositif d'entraínement motorisé (2) pour soulever et abaisser la vitre, qui agit par l'intermédiaire de composants de transmission, comme par exemple une vis sans fin et une roue tangente (3) ou un pignon, sur un élément d'entraínement et la soulève et l'abaisse avec des moyens d'actionnement coopérant avec l'élément d'entraínement, et comportant un système de protection contre un coincement pour débrancher et éventuellement inverser le fonctionnement du dispositif d'entraínement (2) lorsque la vitre rencontre un obstacle dans le trajet de fermeture, caractérisé en ce qu'un jeu est prévu entre le dispositif d'entraínement (2), de préférence entre un composant de transmission du dispositif d'entraínement (2) et l'élément d'entraínement, et en ce qu'il est prévu un élément de ressort (7) qui agit entre le dispositif d'entraínement (2) et l'élément d'entraínement et qui présente une caractéristique d'élasticité essentiellement linéaire, en ce que l'élément de ressort (7) produit une précontrainte et en ce que la constante d'élasticité de l'élément de ressort (7) est dimensionnée de telle sorte que lors de la fermeture de la vitre, sans l'apparition d'un obstacle, il subsiste au moins une partie d'une réserve de course du ressort, qui est utilisée au moins en partie lors du déplacement de fermeture de la vitre dans le cas de la présence d'un obstacle.
  2. Lève-vitre selon la revendication 1, caractérisé en ce que l'élément de ressort (7) possède une force qui est supérieure à la force de translation qui résulte du poids de la vitre et des forces de frottement qui apparaissent lors de la translation de la vitre.
  3. Lève-vitre selon la revendication 1 ou 2, caractérisé en ce que l'élément de ressort (7) possède une force qui est inférieure à la force appliquée par le dispositif d'entraínement (2) lors de la fermeture de la vitre.
  4. Lève-vitre selon l'une des revendications précédentes, caractérisé en ce que l'élément de ressort (7) possède une constante d'élasticité (DF), qui est déterminée par la relation 1/Dtotale = 1/Dnorme + 1/DF, Dnorme étant la constante d'élasticité d'un ressort de contrôle, qui est connue à partir d'une normale de contrôle pour le système de protection contre un coincement, et Dtotale étant la constante d'élasticité résultante, qui est obtenue lors du montage en série du ressort de contrôle et de l'élément de ressort (7).
  5. Lève-vitre selon l'une des revendications 1 à 4, caractérisé en ce qu'il s'agit d'un lève-vitre à ciseaux, qui comporte un élément d'entraínement agencé sous la forme d'un pignon (12) et des moyens d'actionnement engrenant directement ou indirectement avec la vitre et réalisés sous la forme de branches (10, 11) pouvant pivoter l'une par rapport à l'autre.
  6. Lève-vitre selon l'une des revendications 1 à 4, caractérisé en ce qu'il est un lève-vitre (1) à câble de traction comportant un élément d'entraínement réalisé sous la forme d'un tambour à câble (9) monté rotatif, ainsi que deux brins d'un câble de traction relié au tambour à câble (9) en tant que moyens d'actionnement.
  7. Lève-vitre selon la revendication 6, caractérisé en ce que le dispositif d'entraínement (2) entraíne le tambour à câble (9) par l'intermédiaire d'une vis sans fin et d'une roue tangente (3), l'élément de ressort (7) agissant ou prenant appui entre la roue tangente (3), notamment un rayon (4) de la roue tangente (3), et le tambour à câble (9), notamment une griffe (6) du tambour à câble.
  8. Lève-vitre selon l'une des revendications 6 ou 7, caractérisé en ce que l'élément de ressort (7) est agencé sous la forme d'un ressort hélicoïdal de pression (figure 2) ou sous la forme d'un ressort à branches (figure 3).
  9. Lève-vitre selon l'une des revendications 6 à 8, caractérisé en ce qu'un élément d'amortissement, par exemple un amortisseur (5), est disposé entre le dispositif d'entraínement (2) ou la roue tangente (3) et le tambour à câble (9).
  10. Lève-vitre selon l'une des revendications 6 à 9, caractérisé en ce que le câble de traction ne comporte pas de gaine extérieure.
  11. Lève-vitre selon l'une des revendications 6 à 10, caractérisé en ce que l'élément de ressort (7) est logé dans un boítier pour le dispositif d'entraínement (2) ou pour le tambour à câble (9).
EP00958526A 1999-09-23 2000-09-07 Leve-vitre dote d'un dispositif anti-blocage Expired - Lifetime EP1133611B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19945515 1999-09-23
DE19945515 1999-09-23
PCT/EP2000/008737 WO2001021919A1 (fr) 1999-09-23 2000-09-07 Leve-vitre dote d'un dispositif anti-blocage

Publications (2)

Publication Number Publication Date
EP1133611A1 EP1133611A1 (fr) 2001-09-19
EP1133611B1 true EP1133611B1 (fr) 2003-04-09

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EP00958526A Expired - Lifetime EP1133611B1 (fr) 1999-09-23 2000-09-07 Leve-vitre dote d'un dispositif anti-blocage

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Country Link
EP (1) EP1133611B1 (fr)
DE (1) DE50001697D1 (fr)
ES (1) ES2194769T3 (fr)
WO (1) WO2001021919A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111535697A (zh) * 2020-05-11 2020-08-14 朱凤梅 一种基于电磁吸引以及悬浊液限位的电机用保护装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220154518A1 (en) * 2019-04-10 2022-05-19 Magna Closures Inc. Direct drive cable-operated actuation system for closure panel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303590A1 (de) 1983-02-03 1984-08-09 Küster & Co GmbH, 6332 Ehringshausen Elektromotorisch angetriebener fensterheber mit einer sicherheitsschaltung
FR2693568B1 (fr) * 1992-07-10 1994-09-30 Rockwell Abs France Dispositif de sécurité pour ouvrants électriques de véhicule, notamment lève-vitre et toits ouvrants, et ouvrant incorporant ce dispositif.
DE19618853C1 (de) 1996-05-10 1997-08-14 Brose Fahrzeugteile Motorisch angetriebener Fensterheber mit elektronischem Einklemmschutz für ein Kraftfahrzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111535697A (zh) * 2020-05-11 2020-08-14 朱凤梅 一种基于电磁吸引以及悬浊液限位的电机用保护装置

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EP1133611A1 (fr) 2001-09-19
DE50001697D1 (de) 2003-05-15
WO2001021919A1 (fr) 2001-03-29
ES2194769T3 (es) 2003-12-01

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