IT201900002643A1 - “motore elettrico e frizione” - Google Patents

“motore elettrico e frizione” Download PDF

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Publication number
IT201900002643A1
IT201900002643A1 IT102019000002643A IT201900002643A IT201900002643A1 IT 201900002643 A1 IT201900002643 A1 IT 201900002643A1 IT 102019000002643 A IT102019000002643 A IT 102019000002643A IT 201900002643 A IT201900002643 A IT 201900002643A IT 201900002643 A1 IT201900002643 A1 IT 201900002643A1
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IT
Italy
Prior art keywords
clutch
electric motor
rotor
motor
rotors
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IT102019000002643A
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English (en)
Inventor
Bruno Vianello
Original Assignee
Texa Dynamics S R L
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Publication date
Application filed by Texa Dynamics S R L filed Critical Texa Dynamics S R L
Priority to IT102019000002643A priority Critical patent/IT201900002643A1/it
Priority to CN202080016154.3A priority patent/CN113661082A/zh
Priority to PCT/IB2020/051460 priority patent/WO2020174333A1/en
Priority to EP20716100.1A priority patent/EP3931015A1/en
Priority to US17/433,620 priority patent/US20220055472A1/en
Publication of IT201900002643A1 publication Critical patent/IT201900002643A1/it

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2798—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the stator face a rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/424—Friction clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/424—Friction clutches
    • B60Y2400/4242—Friction clutches of dry type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/60—Electric Machines, e.g. motors or generators
    • B60Y2400/607—Axial flux machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/10—Housings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Power Steering Mechanism (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Description

“MOTORE ELETTRICO E FRIZIONE”
DESCRIZIONE
La presente invenzione si riferisce ad un motore elettrico e relativa frizione, e a un metodo costruttivo per un motore elettrico e relativa frizione. La presente invenzione si riferisce anche ad un veicolo elettrico (assistito elettricamente) che ha due o più ruote, come ad es. un Segway, un’automobile o un trattore o una bicicletta elettrica.
Sono noti veicoli ibridi dotati di un motore elettrico e un motore a scoppio, ove i due motori sono collegabili selettivamente tra loro o ad una trasmissione meccanica per trasferire coppia motrice alle ruote tramite due frizioni a disco. Le frizioni a disco, benché ormai tecnologicamente sviluppate, contribuiscono significativamente alle dimensioni longitudinali dell’assieme motore-frizione, in contrasto con la tendenza alla miniaturizzazione. Altri svantaggi sono i costi maggiori a causa del maggiore numero di componenti.
Per ragioni di peso, ingombri e numero di pezzi, sarebbe molto vantaggioso poter ridurre le dimensioni dell’assieme motore elettrico-frizione.
Scopo principale dell’invenzione è migliorare questo stato dell’arte.
Altro scopo dell’invenzione è realizzare un metodo per costruire un assieme motore elettricofrizione con minori dimensioni longitudinali e/o di costo minore.
Altro scopo dell’invenzione è realizzare un assieme motore elettrico-frizione con minori dimensioni longitudinali e/o di costo minore.
Questi ed altri scopi sono raggiunti da quanto definito nelle allegate rivendicazioni indipendenti; altre vantaggiose caratteristiche tecniche sono definite nelle rivendicazioni dipendenti.
Un aspetto dell’invenzione è un assieme motore elettrico-frizione, ove
il motore elettrico comprende un rotore comprendente una superficie libera che forma parte della superficie esterna del motore,
la frizione comprende un disco di frizione, e
il disco di frizione è montato mobile assialmente per contattare selettivamente detta superficie libera.
Un vantaggio generale dell’invenzione è che, facendo riferimento al disegno esemplificativo, si può sfruttare la faccia esterna del rotore 20a e 20b del motore, e si può, senza inserire un ulteriore piatto, attuare sulla faccia 24 la funzione di frizione abbinandola alla unità disco e spingidisco 40a e 40b.
In una variante, il rotore è un disco, per facilità costruttiva e adattamento al disco di frizione.
In una variante, il rotore comprende una faccia su cui vi sono montati dei magneti permanenti e una faccia opposta che costituisce detta superficie libera.
In una variante, il motore elettrico comprende
un primo e secondo rotore come sopra definito, e rispettivamente
un primo e secondo disco di frizione come sopra definito,
i due rotori essendo posti assialmente su lati opposti del motore, in modo che le superfici libere dei due rotori siano rivolte verso direzioni opposte. In particolare i due rotori sono tra loro solidali o collegabili tra loro selettivamente per diventare solidali tramite mezzi di collegamento controllabile.
Un altro aspetto dell’invenzione è un veicolo comprendente un assieme motore elettrico-frizione come sopra definito.
In una variante, la frizione è collegata ad un motore a scoppio.
In una variante, la frizione è collegata ad un albero di trasmissione meccanica atto a trasferire coppia motrice ad una ruota.
In una variante, il motore comprende detti due rotori, e la prima frizione è collegata ad un motore a scoppio e la seconda frizione è collegata ad un albero di trasmissione meccanica atto a trasferire coppia motrice ad una ruota.
Un aspetto dell’invenzione è un metodo per costruire un assieme motore elettrico-frizione, con la fase di
montare assialmente mobile un disco di frizione in modo che possa contattare selettivamente una porzione di superficie esterna del motore, ove detta porzione appartiene ad un rotore del motore.
Ulteriori vantaggi risulteranno chiari dalla descrizione seguente, che si riferisce ad un esempio di realizzazione preferito in cui:
- la figura 1 mostra una vista tridimensionale di un assieme motore-elettrico-frizione.
Un assieme motore elettrico-frizione è formato da un motore elettrico 10 e due frizioni 40a, b. Il motore 10 ha una carcassa statorica o statore 12 in cui sono montati rotabilmente un primo rotore 20a e un secondo rotore 20b. tra loro solidali.
Nell’esempio i rotori 20a, 20b sono nella forma di due dischi e sono ad es. uguali. I rotori 20a, 20b sono dotati di una rispettiva superficie libera 24 che forma parte della superficie esterna della carcassa 12, sono girevoli attorno ad uno stesso asse X e sono collocati su lati opposti della carcassa 12, in modo che le superfici libere 24 dei due rotori 20a, 20b siano rivolte verso direzioni opposte.
Ogni frizione 40a, b comprende un disco di frizione 42 montato mobile assialmente, con mezzi noti, lungo l’asse X per contattare selettivamente la superficie libera 24 rispettivamente del rotore 20a, 20b ad essa affacciato.
Ogni frizione 40a, b comprende anche un coperchio di protezione 90 fissabile alla carcassa 12. Secondo una variante preferita, ogni rotore 20a, 20b comprende sulla faccia opposta alla superficie 24 dei magneti 22, ad es. permanenti, atti ad interagire magneticamente con componenti dello statore 12. Le frizioni 40a, b sono controllabili indipendentemente una dall’altra.
L’assieme motore elettrico-frizione 10 è vantaggiosamente integrabile in un veicolo. In particolare nel veicolo la frizione 40a è collegata ad un motore a scoppio (non mostrato) e la frizione 40b è collegata ad un albero 60 di trasmissione meccanica atto a trasferire coppia motrice ad es. ad una ruota o ad una scatola del cambio (ingranaggi del cambio).
Quando la frizione 40a collega il disco 20a al motore a scoppio, quest’ultimo può azionare in rotazione il motore elettrico 10, altrimenti il motore a scoppio resta isolato dall’albero 60 e dal motore 10.
In questa configurazione, se la frizione 40b non è in presa, il motore a scoppio può ad es. far ruotare i rotori 20a, 20b per generare energia elettrica onde ricaricare una batteria a bordo del veicolo (non mostrata). Oppure il motore 10 può essere controllato per funzionare da volano attivo per il motore a scoppio, col vantaggio ad es. di filtrare variazioni di coppia.
Quando la frizione 40b collega il disco 20b all’albero 60, il motore 10 può azionare in rotazione l’albero 60, altrimenti il motore 10 resta isolato dall’albero 60. In questa configurazione il motore 10 può trasferire coppia all’albero 40.
Quando ogni frizione 40a, b è collegata al rispettivo disco 20a, b il motore 10 e il motore a scoppio possono trasferire entrambi coppia all’albero 60.
Il motore 10 può anche comprendere un solo rotore e relativa frizione.

Claims (8)

  1. RIVENDICAZIONI 1. Assieme motore elettrico-frizione (10), ove il motore elettrico comprende un rotore (20a, 20b) comprendente una superficie libera (24) che forma parte della superficie esterna del motore, la frizione (40) comprende un disco di frizione (42), e il disco di frizione (42) è montato mobile assialmente per contattare selettivamente detta superficie libera (24).
  2. 2. Assieme secondo la rivendicazione 1, in cui il rotore è un disco.
  3. 3. Assieme secondo la rivendicazione 2, in cui il rotore comprende una faccia su cui vi sono montati dei magneti permanenti (22) e una faccia opposta che costituisce detta superficie libera (24).
  4. 4. Assieme secondo una qualsiasi rivendicazione precedente, comprendente un primo e secondo rotore (20a, 20b) come definito in una rivendicazione precedente qualsiasi, e rispettivamente un primo e secondo disco di frizione come definito in una rivendicazione precedente qualsiasi, i due rotori essendo posti assialmente su lati opposti del motore, in modo che le superfici libere (24) dei due rotori siano rivolte verso direzioni opposte.
  5. 5. Veicolo comprendente un assieme motore elettrico-frizione come definito in una qualsiasi rivendicazione precedente.
  6. 6. Veicolo secondo la rivendicazione 5, in cui la frizione è collegata ad un motore a scoppio o ad un albero di trasmissione meccanica atto a trasferire coppia motrice ad una ruota.
  7. 7. Veicolo secondo la rivendicazione 5 o 6, in cui il motore elettrico comprende detti due rotori, e la prima frizione è collegata ad un motore a scoppio e la seconda frizione è collegata ad un albero di trasmissione meccanica atto a trasferire coppia motrice ad una ruota.
  8. 8. Metodo per costruire un assieme motore elettrico-frizione (10), con la fase di montare assialmente mobile un disco di frizione (42) in modo che possa contattare selettivamente una porzione di superficie esterna del motore, ove detta porzione appartiene ad un rotore (20a, 20b) del motore.
IT102019000002643A 2019-02-25 2019-02-25 “motore elettrico e frizione” IT201900002643A1 (it)

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IT102019000002643A IT201900002643A1 (it) 2019-02-25 2019-02-25 “motore elettrico e frizione”
CN202080016154.3A CN113661082A (zh) 2019-02-25 2020-02-21 电动马达和离合器
PCT/IB2020/051460 WO2020174333A1 (en) 2019-02-25 2020-02-21 Electric motor and clutch
EP20716100.1A EP3931015A1 (en) 2019-02-25 2020-02-21 Electric motor and clutch
US17/433,620 US20220055472A1 (en) 2019-02-25 2020-02-21 Electric motor and clutch

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WO2023067494A1 (en) * 2021-10-18 2023-04-27 Ecothea S.R.L. Electric traction motor unit, drive unit and agricultural vehicle comprising the same, and electric traction kit and assembly method thereof

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