WO2013020537A1 - Elektrische leistungsübertragungseinrichtung - Google Patents
Elektrische leistungsübertragungseinrichtung Download PDFInfo
- Publication number
- WO2013020537A1 WO2013020537A1 PCT/DE2012/000713 DE2012000713W WO2013020537A1 WO 2013020537 A1 WO2013020537 A1 WO 2013020537A1 DE 2012000713 W DE2012000713 W DE 2012000713W WO 2013020537 A1 WO2013020537 A1 WO 2013020537A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power transmission
- transmission device
- rotor
- bearing
- friction clutch
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D28/00—Electrically-actuated clutches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/28—Roller contacts; Ball contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
Definitions
- the invention relates to an electric power transmission device for a rotatable friction clutch device, in particular for an internal combustion engine-driven motor vehicle, the friction clutch device comprising an actuating device with at least one rotatable with the friction clutch electrical actuator, the power transmission device comprising an inductive rotary transformer with an electric power source associated stator and the at least one Actuator associated rotor for non-contact transmission of electrical energy between the stator and the rotor.
- a device for power transmission is known from an annular cross-section outer conductor to a concentrically arranged circular inner conductor, which rotate against each other on the common axis, with a plurality of contact rollers, which can be arranged between the outer conductor and the inner conductor, the have a substantially corresponding to the distance between the inner and outer conductor diameter and having an electrically conductive elastic surface in which the contact rollers and spaced guide rollers are rotatably mounted on a guide ring to further improve the power transmission with reduced sliding friction.
- German Patent Application No. DE 10 2011 104 412.8 discloses a friction clutch device, in particular for a drive train of a motor vehicle, comprising an input part with a pressure plate and at least one pressure plate limited axially displaceable relative to the pressure plate and at least one output part with at least a clutch disc, wherein the at least one clutch disc between the pressure plate and the at least one pressure plate is arranged and depending on a displacement of the at least one pressure plate a frictional force / movement transmission between the input part and output part is made possible, in the displacement of the at least one pressure plate a Toggle device is provided in order to allow a further increase in the translation when actuated, foundedbr Ein- and disengaging forces over the entire adjustment in Kupplungsachsggi Ingen and a space to better exploit.
- This friction clutch device can for actuating the pulley device an electric motor,
- CONFIRMATION COPY in particular a linear servomotor.
- a friction clutch device can also be referred to as a cable pull clutch.
- the invention has for its object to increase in a power transmission device mentioned above, a reliability and to keep construction costs low.
- an electric power transmission device for a rotatable friction clutch device in particular for a motor vehicle driven by friction
- the friction clutch device having an actuating device with at least one electric actuator rotatable with the friction clutch device
- the power transmission device having an inductive rotary transformer with a stator associated with an electrical power source and a rotor, associated with the at least one actuator, for non-contact transmission of electrical energy between the stator and the rotor, wherein the power transfer device has an electrical contact for contactively conducting electrical energy from the power source to the at least one actuator.
- the friction clutch device can be electrically actuated.
- the friction clutch device may have a single clutch.
- the friction clutch device may have a dual clutch with a first clutch device and a second clutch device.
- the friction clutch device may comprise a pulled clutch device.
- the friction clutch device may have a depressed clutch device.
- the friction clutch device may have a spring which acts in the opening and / or closing direction.
- the friction clutch device may be a cable pull clutch.
- the friction clutch device may be a gear clutch.
- the actuator may comprise a single actuator.
- the actuator may include a plurality of actuators.
- the actuator may comprise two actuators.
- a first actuator may allow actuation of a first clutch device of a dual clutch.
- a second actuator may enable actuation of a second clutch device of a dual clutch.
- An actuator may allow actuation of the friction clutch device in the opening and / or closing direction.
- An actuator may act against the force of a spring.
- the term “friction clutch” is to be understood as meaning a clutch with input and output part, which starts from a completely disengaged one Actuating position in which there is substantially no power transmission between the input and output part, up to a fully engaged operating position, in which between the input and output part substantially a complete power transmission, depending on the operation allows an increasing power transmission, wherein a power transmission between input and Output part frictionally engaged. Conversely, starting from a fully engaged operating position, in which between the input and output part substantially a complete power transmission takes place, up to a fully disengaged operating position in which there is substantially no power transmission between the input and output part, depending on the operation, a decreasing power transmission.
- a "double clutch” has an input part on the engine side, which comprises a housing or a cover, a pressure plate and two pressure plates
- the first output part and / or the second output part can be connected to each other or separated from each other, and a power flow can be shifted from the input part to the second output part and vice versa in a transitional transition.
- the power transmission device may replace a mechanical slip ring for transmitting electrical energy.
- a coupling between stator and rotor can be done using magnetic fields. Wear and maintenance can be reduced.
- the stator and the rotor may have an electrical winding.
- the stator and the rotor may have an iron or ferrite core. In the winding, an electrical alternating signal can be fed. On the winding, an electrical alternating signal can be tapped. An alternating signal can be generated by means of the power source.
- the stator may be electrically connected to the power source.
- the rotor may be electrically connected to the actuator.
- the electrical contact may be a contact between two relatively movable parts.
- the electrical contact may have a first contact part and a second contact part.
- the first contact part and the second contact part may be electrically connected to each other.
- the first contact part and the second contact part may be movable relative to one another.
- the electrical contact can be present in addition to the inductive rotary transformer. be his.
- the electrical contact can functionally correspond to the inductive rotary transformer.
- the electrical contact may be unused during regular operation of the power transmission device.
- the electrical contact can be used in an impaired function of the inductive rotary transformer.
- a power supply of the actuator can be redundant.
- a power supply of the actuator can be done by means of the electrical contact.
- An additional redundant device such as mechanical spring, electrical buffer memory, additional transformer rotary transformer, can be omitted. Due to the use of existing bearings, such as deep groove ball bearings, only small additional costs.
- the power transmission device may have at least one bearing for rotatably supporting the rotor, and an electrical contact may be formed by means of the at least one bearing.
- the bearing may have two mutually rotatable bearing parts.
- the bearing parts may be contact parts of the electrical contact.
- the bearing can have further bearing parts. Between the two mutually rotatable bearing parts more bearing parts can be arranged.
- the other bearing parts can electrically interconnect the two mutually rotatable bearing parts.
- the at least one bearing can be an already existing bearing, which is additionally used as an electrical contact. This can be created in a particularly space-saving manner, an electrical contact.
- the at least one bearing may be a roller bearing, in particular a deep groove ball bearing.
- the bearing may have an inner ring and an outer ring.
- Rolling elements can be arranged between the inner ring and the outer ring. At least one surface of the inner ring, the outer ring and the rolling elements may be electrically conductive.
- the inner ring, the outer ring and the rolling elements may be made of metal, such as steel.
- the at least one bearing may form one pole of the electrical contact.
- This pole can be a plus pole.
- An opposite pole of the electrical contact may be formed by means of a vehicle ground connection.
- the opposite pole can be a minus pole be.
- the vehicle ground terminal may define a potential zero volts and represent a reference potential for signal and / or operating voltages.
- the vehicle ground connection may be assigned to a vehicle body.
- the vehicle ground connection can be assigned to a housing of the rotary transformer.
- the opposite pole may be formed by means of a dual mass flywheel.
- the dual mass flywheel may be electrically connected to a crankshaft of the internal combustion engine.
- the power transmission device may have at least two bearings and the at least two bearings may form opposite poles of the electrical contact.
- the at least two bearings can be electrically separated from each other.
- the at least two bearings can be galvanically isolated from each other.
- the at least two bearings can be electrically insulated from each other by means of a plastic section. For the electrical separation of the at least two bearings from each other can be arranged between the at least two bearings and the rotor plastic parts.
- the friction clutch device may be a dual clutch device with two electric actuators.
- the transformer rotary transformer used for a power supply may have at least one bearing for storage between the stationary and the rotating coil in order to ensure a constant clearance.
- two - galvanically isolated - bearings can be used. These bearings can now be used to transmit the required power in case of failure of the actual transformer rotary transformer. This can work for both static and rotating couplings whenever at least one ball (when using a deep groove ball bearing) is connected.
- One bearing can represent the plus pole and the other bearing the minus pole. When using only one bearing, it may be necessary to ensure that, for example, via the dual-mass flywheel, which in turn is bolted to the crankshaft, there is a potential.
- FIG. 1 shows a transformer rotary transformer with a stator and a rotor in a perspective view
- Fig. 2 shows a transformer rotary transformer with a stator, a rotor and ball bearings in sectional view and
- Fig. 3 is a circuit diagram of a transformer rotary transformer with the help of two ball bearings integrated redundancy.
- FIG. 1 shows a transformer rotary transformer 100 with a stator 102 and a rotor 104 in a perspective view.
- the stator 102 and the rotor 104 are rotatable relative to each other about a common axis.
- the transformer rotary transformer 100 can be transmitted without contact inductive electrical energy between the stator 102 and the rotor 104.
- the stator 102 may be connected to a power source.
- the rotor 104 may be connected to an electric actuator.
- the stator 102 and the rotor 104 each have an iron or ferrite core and a coil assembly.
- an alternating signal can be generated in the winding of the stator 102.
- the alternating signal can be transmitted without contact from the stator 102 to the rotor 104.
- the alternating signal can be tapped and fed to the actuators.
- the rotary transformer 100 is used for non-contact transmission of electrical power to an actuator of a dual clutch with two actuators.
- the actuators are arranged on the double clutch and rotate with it.
- the rotor 104 of the rotary transformer 100 rotates with the dual clutch and the actuators.
- the stator 102 of the rotary transformer 100 is arranged rotationally fixed.
- FIG. 2 shows a transformer rotary transformer 200 with a stator 202, a rotor 204 and ball bearings 206, 208 in a sectional view.
- the stator 202 has a housing 210 of the rotary transformer 200.
- the rotor 204 has a relative to the housing 210 rotatable shaft 212.
- the ball bearings 206, 208 By means of the ball bearings 206, 208, the rotor 204 is rotatably mounted relative to the stator 202.
- the ball bearings 206, 208 are deep groove ball bearings and each have a shaft-fixed
- the inner rings 214, 216 of the ball bearings 206, 208 are arranged electrically insulated on the shaft 212 and on the rotor 204.
- the inner rings 214, 216 of the ball bearings 206, 208 are arranged by means of plastic parts 226, 228 on the shaft 212 and on the rotor 204 electrically insulated.
- the ball bearings 206, 208 serve as electrical contact for the contact-conducting transmission of electrical energy from the power source to the actuators in the event that the non-contact inductive power transmission with the rotary transformer 200 is subject to a malfunction or malfunction.
- the ball bearings 206, 208 form two poles with which the actuators are connected. In the present case, the ball bearing 206 forms the negative pole and the ball bearing 208 the positive pole. In another embodiment, the ball bearing 206 may form the positive pole and the ball bearing 208 the negative pole. This provides a redundant power supply to the actuators. In a malfunction or malfunction of the non-contact inductive power transmission can be done a touching conductive power transmission, in particular, to open a clutch and to interrupt a torque flow in the drive train. Incidentally, reference is made to FIG. 1 and the associated description.
- FIG. 3 shows a circuit diagram 300 of a transformer rotary transformer 302 with redundancy integrated by means of two ball bearings 304, 306.
- the standing part 308 of the rotary transformer 302 is shown.
- the rotating part 310 of the rotary transformer 302 is shown.
- a device 312 for inductive power transmission with a primary side 314 and a secondary side 316 is arranged.
- the parts of the ball bearings 304, 306 associated with the stationary part 308 are electrically connected to a device 318 for voltage conditioning and stabilization.
- the standing part 308 of the rotary transformer 302 also has a device 320 for voltage stabilization, a switching regulator 322, a device 324 for measuring back a voltage on the secondary side corresponding to the rotating part 310 of the rotary transformer 302 and a device 326 for current measurement.
- the standing part 308 of the Rotary transmitter 302 has a CAN transceiver 328 and a transmitter 330 for transmitting and / or receiving.
- the rotating part 310 of the rotary transformer 302 has a device 332 for secondary voltage supply and data transmission with a transmitter 334 for transmitting and / or receiving, a torque sensor 336, a computing unit 338, a device 340 for monitoring, a first electric motor output stage 342 for driving a first electric motor 344 and a second electric motor output stage 346 for driving a second electric motor 348.
- the first electric motor 344 serves to actuate an actuator 350 of a first clutch device of a double clutch.
- the second electric motor 346 serves to actuate an actuator 352 of a second clutch device of a double clutch.
- a primary-side voltage may be 18V.
- a secondary-side voltage may be 20 V ⁇ 2 V, for example.
- Fig. 1 and Fig. 2 and the associated description.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12746003.8A EP2742518B1 (de) | 2011-08-08 | 2012-07-13 | Elektrische leistungsübertragungseinrichtung |
DE112012003288.8T DE112012003288A5 (de) | 2011-08-08 | 2012-07-13 | Elektrische Leistungsübertragungseinrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011080576.1 | 2011-08-08 | ||
DE102011080576 | 2011-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013020537A1 true WO2013020537A1 (de) | 2013-02-14 |
Family
ID=46650289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2012/000713 WO2013020537A1 (de) | 2011-08-08 | 2012-07-13 | Elektrische leistungsübertragungseinrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2742518B1 (de) |
DE (2) | DE102012212259A1 (de) |
WO (1) | WO2013020537A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015211669A1 (de) | 2015-06-24 | 2016-12-29 | Zf Friedrichshafen Ag | Berührungslose Energieübertragung bei drehenden Wellen |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2973851A (en) * | 1959-04-30 | 1961-03-07 | Bendix Corp | Clutches |
US5770936A (en) * | 1992-06-18 | 1998-06-23 | Kabushiki Kaisha Yaskawa Denki | Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus, and a control method for controlling same |
DE10216855B4 (de) | 2002-04-16 | 2004-03-18 | Siemens Ag | Anordnung zur Stromübertragung |
DE102005051462A1 (de) * | 2004-11-20 | 2006-05-24 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Vorrichtung zur induktiven Leistungsüberwachung, Verfahren zur Herstellung einer solchen Vorrichtung, Drehübertrager |
DE102008000644A1 (de) * | 2008-03-13 | 2009-09-17 | Zf Friedrichshafen Ag | Drehübertragungsanordnung |
DE102011104412A1 (de) | 2010-06-29 | 2012-05-31 | Schaeffler Technologies Gmbh & Co. Kg | Reibungskupplungseinrichtung |
-
2012
- 2012-07-13 EP EP12746003.8A patent/EP2742518B1/de not_active Not-in-force
- 2012-07-13 WO PCT/DE2012/000713 patent/WO2013020537A1/de active Application Filing
- 2012-07-13 DE DE201210212259 patent/DE102012212259A1/de not_active Withdrawn
- 2012-07-13 DE DE112012003288.8T patent/DE112012003288A5/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2973851A (en) * | 1959-04-30 | 1961-03-07 | Bendix Corp | Clutches |
US5770936A (en) * | 1992-06-18 | 1998-06-23 | Kabushiki Kaisha Yaskawa Denki | Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus, and a control method for controlling same |
DE10216855B4 (de) | 2002-04-16 | 2004-03-18 | Siemens Ag | Anordnung zur Stromübertragung |
DE102005051462A1 (de) * | 2004-11-20 | 2006-05-24 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Vorrichtung zur induktiven Leistungsüberwachung, Verfahren zur Herstellung einer solchen Vorrichtung, Drehübertrager |
DE102008000644A1 (de) * | 2008-03-13 | 2009-09-17 | Zf Friedrichshafen Ag | Drehübertragungsanordnung |
DE102011104412A1 (de) | 2010-06-29 | 2012-05-31 | Schaeffler Technologies Gmbh & Co. Kg | Reibungskupplungseinrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE112012003288A5 (de) | 2014-04-30 |
EP2742518A1 (de) | 2014-06-18 |
EP2742518B1 (de) | 2015-09-16 |
DE102012212259A1 (de) | 2013-02-14 |
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