WO2010004192A2 - Device for automatically locking and unlocking an electric motor vehicle battery tray, vehicle and battery exchange station both equipped with such a device - Google Patents

Device for automatically locking and unlocking an electric motor vehicle battery tray, vehicle and battery exchange station both equipped with such a device Download PDF

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Publication number
WO2010004192A2
WO2010004192A2 PCT/FR2009/051283 FR2009051283W WO2010004192A2 WO 2010004192 A2 WO2010004192 A2 WO 2010004192A2 FR 2009051283 W FR2009051283 W FR 2009051283W WO 2010004192 A2 WO2010004192 A2 WO 2010004192A2
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
unlocking
battery
battery tray
frame
Prior art date
Application number
PCT/FR2009/051283
Other languages
French (fr)
Other versions
WO2010004192A3 (en
Inventor
Olivier Winternheimer
Original Assignee
Renault S.A.S.
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 Renault S.A.S. filed Critical Renault S.A.S.
Publication of WO2010004192A2 publication Critical patent/WO2010004192A2/en
Publication of WO2010004192A3 publication Critical patent/WO2010004192A3/en

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Classifications

    • 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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • 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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0416—Arrangement in the rear part of the vehicle
    • 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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • 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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0472—Removal or replacement of the energy storages from below
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the invention relates to an automatic locking and unlocking device for an electric motor vehicle battery box and a battery exchange station equipped with such a device.
  • electric motor vehicles include a large mass battery, 200 to 300 kg for example to ensure sufficient driving autonomy. Nevertheless, such a battery, once discharged, must be recharged, which implies a charging time during which the vehicle is unavailable.
  • the device according to the invention aims to allow a rapid exchange (2 to 3 minutes) of a battery discharged from an electric motor vehicle by a charged battery.
  • a locking device for unlocking an electric motor vehicle battery tray which vehicle is able successively to release and receive on the frame of its chassis said battery tray through an opening of the frame of its chassis , characterized in that it comprises unlocking means for locking the battery tray to the chassis frame of the vehicle, said unlocking locking means comprising at least one projection or mobile rod actuated by jack, adapted to engage locking unlocking according to a point in a recess complementary to the chassis frame or battery tray.
  • the aforementioned movable rod may be that of the cylinder.
  • the locking means may be in a variable number, preferably four, for example two arranged respectively at the front and two at the rear of the chassis frame relative to the direction of circulation of the vehicle.
  • the jack may be a hydraulic or pneumatic cylinder or an electric screw jack.
  • the jack is a single-acting pneumatic cylinder, acting on retraction of the rod for unlocking the battery tray, the output of the rod towards the recess being made using a spring means, for example a coil spring coaxially mounted to the cylinder and external return of the cylinder rod.
  • a spring means for example a coil spring coaxially mounted to the cylinder and external return of the cylinder rod.
  • the unlocking locking means are mounted integral with the chassis frame of the vehicle, so as not to multiply the number of these elements to each battery. They can also be mounted on the battery tray and thus be part of it.
  • the device comprises means for supplying or activating said unlocking locking means, capable of enabling a quick and automatic power supply or activation of the unlocking locking means, on approaching the battery box at the chassis frame of the vehicle.
  • the device also comprises a set of safety contacts connected to the unlocking locking means, and intended to provide good unlocking locking of the battery tray to the vehicle, and to allow the various operations of unlocking the battery tray and extraction of that of the vehicle, or of setting it on the vehicle respectively.
  • the invention relates to an electric motor vehicle, comprising a frame adapted to support a battery tray, said frame being provided with an opening for the introduction and removal of said battery tray, characterized in that it comprises a device locking unlocking according to the invention.
  • the locking-unlocking means of the device can be mounted on the support frame of the battery tray or on the battery tray itself.
  • the invention relates to a battery exchange station for an electric vehicle according to the invention, said station comprising a battery storage tray, means for conveying a discharged battery tray or a battery tray. charged from the storage bin of battery trays to the electric vehicle, and lifting means able to lift the battery tray sufficiently to allow locking or unlocking it relative to the frame of the vehicle.
  • the station comprises means for supplying or activating said unlocking locking means, capable of allowing a quick and automatic power supply or activation of the unlocking locking means, on approaching the battery box at the chassis frame of the vehicle.
  • Such supply or activation means may be provided on the locking-unlocking device and / or on the exchange station.
  • said means for supplying or activating said unlocking locking means may be integral with the lifting means of the exchange station.
  • the connections - disconnections of the locking-unlocking means and the battery can be performed automatically.
  • the control means are for example capable of being put into service along a determined vertical axis with respect to the locking points of the unlocking locking means to ensure said stationary holding in sufficient lifting of the battery tray relative to the locking points of the unlocking locking means.
  • FIG. 1 is a perspective view from above of a battery tray set up from below of the vehicle in the rear frame frame opening of an electric motor vehicle equipped
  • Figure 2 is a top view of the battery tray of Figure 1 on the chassis frame opening of the vehicle
  • FIG. 3 is a schematic transverse view partially showing a vehicle equipped with a battery exchange station according to the invention
  • FIG. 4 is a schematic sectional view of a lock of the device engaged on the chassis frame of the vehicle.
  • Fig. 5 is a schematic cross-sectional view showing the automatic battery and power supply connections of the battery exchange station lifting means.
  • a battery tray 1 placed on the frame of the support frame 3 of an electric motor vehicle 5.
  • the battery tray 1 has dimensions and a mass relatively large, for example 0.8 x 0.5 x 0.70 m (W x L x H) and 250 kg, to ensure the electric vehicle 5 substantial rolling autonomy, for example, from 200 to 300 km for a vehicle way.
  • the battery tray 1 is placed in a battery exchange station 7 by a lower opening 9 of the support frame frame 3 of the vehicle, slightly larger than the battery tray 1. It can also be set up by the top of the vehicle, for example by an opening of the trunk of the vehicle on vehicles with conventional chest (not shown).
  • the battery tray 1 is secured to the support frame frame 3 of the vehicle according to four connection points (at least three), represented by blocks 11, respectively two at the front of the frame 3 and two at the rear of it, relative to the front-rear axis of the vehicle.
  • connection points 11 are each provided by a latch mounted on the support frame frame of the vehicle.
  • These latches each comprise (FIG. 4) a pneumatic jack 13 implanted in the plane of the support frame frame 3 and whose end portion 15 of the movable rod 17 faces a small gap to a complementary recess 19 of the battery tray 1 .
  • the jack 13 is pneumatic with a simple effect in the direction of retraction of the rod 17, the output of the rod being provided by the return of a coil spring 21 mounted in the cylinder body, when the cylinder n is not powered.
  • the movable rod 17 for locking the battery container engages in the recess 19 of the container of battery and the unlocking of the battery tray, the cylinder 13 is controlled to release its rod 17 from the recess 19 to enter the cylinder body, out of engagement with the recess 19.
  • the end 15 of the rod can abut on a flexible positioning stop 23, for example made of rubber, able to allow the centering of the rod 17 and consequently of the set of rods 17 of cylinder to lock the battery tray 1.
  • a battery exchange station appears more broadly in FIG. 3, where the lifting means 25 (for example with vertically deformable parallelogram) of the battery tray and the conveying means 27 (with rollers) are seen. rotating) battery trays to the storage and battery charging magazine (not shown).
  • the vehicles are brought for example on a platform 31 (shown partially) to the right of the lifting and conveying means 25, 27.
  • lifting and conveying means 25, 27 operate one after the other, the conveying means 27 stopping in particular at a specific position relative to the platform 31 and the vehicle 5, where the means of lift 25 can then be turned on to raise to or lift a battery tray along a vertical positioning reference axis ( ⁇ ) relative to the connection points 11.
  • the vehicle is brought beforehand on the platform 31 to a precise position determined allowing access from below the lifting means 25 along the axis ( ⁇ ) to the battery tray 1 set up on the vehicle.
  • the operation of the unlocking lock device and the battery exchange station are now described.
  • the vehicle battery is discharged and that it must be exchanged by a new charged battery.
  • the vehicle 5 is then positioned on the platform 31 at a position allowing access of the lifting means 25 under the battery tray 1 and corresponding to the vertical axis ( ⁇ ) of lifting thereof.
  • These lifting means are advantageously equipped with connectors 33 with automatic vertical fitting of supply of each jack (also Figure 5) (four in total). When they rise to the level of the battery tray 1 in place, these connectors 33 connect and feed the cylinders.
  • the battery tray can be removed from the vehicle and conveyed to the warehouse.
  • the lifting means 25 are then actuated to descend along the axis ( ⁇ ) the battery tray 1 to the level of the conveying means 27, where the latter can then be actuated to bring the discharged battery tray 1 to warehouse.
  • the discharged battery tray is then deposited in the magazine, then a loaded battery tray 1 is then deposited on the conveying means 27 and it can return in the opposite direction from the previous maneuver to the vehicle where the battery tray can be raised by the lifting means 25, according to the determined vertical axis ( ⁇ ) of positioning the tray under the opening 9 of the chassis frame of the vehicle.
  • the tray is then raised at the frame to a determined height controlled by a safety contact not shown, and then held slightly (sufficiently) above the position of implantation of the battery tray on the chassis frame of the vehicle.
  • the electrical connection of the battery to the vehicle is performed simultaneously and automatically (by contact), for example by an upper elastic electrical contact sleeve 35.
  • the supply connection 33 of the cylinders is made as described above.
  • the power supply of the cylinders is then controlled to evacuate the pneumatic pressure of the cylinders and their rod 17 under the return of their spring 21 is output into the corresponding recess 19 of the chassis frame for the locking of the battery tray on the frame of the vehicle.
  • the locking of the battery tray is then performed, which is indicated by the safety contacts (not shown) detecting the cylinder rod outlet.
  • the exchange operation of the battery is then performed and required little time, about two to three minutes.

Abstract

The invention relates to a device for locking and unlocking a battery tray (1) of an electric motor vehicle, which vehicle is able successively to release and to receive the said battery tray (1) on the frame (3) of its chassis via an opening in the frame of its chassis, characterized in that it comprises means (13, 15, 19) for locking and unlocking the battery tray (1) with respect to the frame (3) of the chassis of the vehicle, the said locking and unlocking means (13, 15, 19) comprising at least one projection or moving rod (17) actuated by an actuating cylinder (13), able to engage for the purposes of locking/unlocking according to a point (11), in a complementary recess (19) in the frame of the chassis (3) or of the battery tray (1), vehicle comprising such a device and battery exchange station.

Description

DISPOSITIF DE VERROUILLAGE ET DEVERROUILLAGE LOCKING AND UNLOCKING DEVICE
AUTOMATIQUES D'UN BAC BATTERIE DE VEHICULEAUTOMATIC VEHICLE BATTERY BAG
AUTOMOBILE ELECTRIQUE, VEHICULE ET STATION D'ECHANGEAUTOMOBILE ELECTRIQUE, VEHICLE AND EXCHANGE STATION
DE BATTERIES EQUIPES D'UN TEL DISPOSITIFBATTERY EQUIPPED WITH SUCH A DEVICE
L'invention concerne un dispositif de verrouillage et déverrouillage automatiques d'un bac batterie de véhicule automobile électrique et une station d'échange de batteries équipée d'un tel dispositif.The invention relates to an automatic locking and unlocking device for an electric motor vehicle battery box and a battery exchange station equipped with such a device.
On sait que les véhicules automobiles électriques comportent une batterie de masse importante, de 200 à 300 kg par exemple pour assurer une autonomie de roulage suffisante. Néanmoins, une telle batterie, une fois déchargée, doit être rechargée, ce qui implique un temps de charge pendant lequel le véhicule est indisponible.It is known that electric motor vehicles include a large mass battery, 200 to 300 kg for example to ensure sufficient driving autonomy. Nevertheless, such a battery, once discharged, must be recharged, which implies a charging time during which the vehicle is unavailable.
Le dispositif selon l'invention vise à permettre un échange rapide (2 à 3 mn) d'une batterie déchargée d'un véhicule automobile électrique par une batterie chargée.The device according to the invention aims to allow a rapid exchange (2 to 3 minutes) of a battery discharged from an electric motor vehicle by a charged battery.
Il est proposé selon l'invention un dispositif de verrouillage déverrouillage d'un bac de batterie de véhicule automobile électrique, lequel véhicule est apte à successivement libérer et recevoir sur le cadre de son châssis ledit bac de batterie par une ouverture du cadre de son châssis, caractérisé en ce qu'il comporte des moyens de verrouillage déverrouillage du bac de batterie au cadre de châssis du véhicule, lesdits moyens de verrouillage déverrouillage comportant au moins une saillie ou tige mobile actionnée par vérin, apte à venir en prise de verrouillage déverrouillage selon un point dans un évidement complémentaire du cadre de châssis ou du bac de batterie.It is proposed according to the invention a locking device for unlocking an electric motor vehicle battery tray, which vehicle is able successively to release and receive on the frame of its chassis said battery tray through an opening of the frame of its chassis , characterized in that it comprises unlocking means for locking the battery tray to the chassis frame of the vehicle, said unlocking locking means comprising at least one projection or mobile rod actuated by jack, adapted to engage locking unlocking according to a point in a recess complementary to the chassis frame or battery tray.
La tige mobile précitée peut être celle du vérin.The aforementioned movable rod may be that of the cylinder.
Les moyens de verrouillage peuvent être en nombre variable, de préférence quatre, par exemple deux disposés respectivement à l'avant et deux à l'arrière du cadre de châssis relativement au sens de circulation du véhicule.The locking means may be in a variable number, preferably four, for example two arranged respectively at the front and two at the rear of the chassis frame relative to the direction of circulation of the vehicle.
Le vérin peut être un vérin hydraulique ou pneumatique ou encore un vérin électrique à vis.The jack may be a hydraulic or pneumatic cylinder or an electric screw jack.
De préférence, le vérin est un vérin pneumatique à simple effet, agissant à la rentrée de la tige pour le déverrouillage du bac de batterie, la sortie de la tige vers l'évidement étant réalisée à l'aide d'un moyen ressort, par exemple un ressort hélicoïdal monté coaxialement au vérin et en rappel externe de la tige de vérin.Preferably, the jack is a single-acting pneumatic cylinder, acting on retraction of the rod for unlocking the battery tray, the output of the rod towards the recess being made using a spring means, for example a coil spring coaxially mounted to the cylinder and external return of the cylinder rod.
De préférence, les moyens de verrouillage déverrouillage sont montés solidaires du cadre de châssis du véhicule, afin de ne pas multiplier le nombre de ces éléments à chaque batterie. Ils peuvent également être montés sur le bac de batterie et faire ainsi partie de ce dernier.Preferably, the unlocking locking means are mounted integral with the chassis frame of the vehicle, so as not to multiply the number of these elements to each battery. They can also be mounted on the battery tray and thus be part of it.
Avantageusement, le dispositif comprend des moyens d'alimentation ou d'activation desdits moyens de verrouillage déverrouillage, aptes à permettre une prise rapide et automatique d'alimentation ou d'activation des moyens de verrouillage déverrouillage, à l'approche du bac de batterie au cadre de châssis du véhicule.Advantageously, the device comprises means for supplying or activating said unlocking locking means, capable of enabling a quick and automatic power supply or activation of the unlocking locking means, on approaching the battery box at the chassis frame of the vehicle.
Avantageusement, le dispositif comporte également un ensemble de contacts de sécurité reliés aux moyens de verrouillage déverrouillage, et destinés à renseigner du bon déverrouillage verrouillage du bac batterie au véhicule, et à autoriser les diverses manœuvres de déverrouillage du bac batterie et d'extraction de celui-ci du véhicule, ou de mise en place de celui-ci sur le véhicule respectivement.Advantageously, the device also comprises a set of safety contacts connected to the unlocking locking means, and intended to provide good unlocking locking of the battery tray to the vehicle, and to allow the various operations of unlocking the battery tray and extraction of that of the vehicle, or of setting it on the vehicle respectively.
L'invention concerne un véhicule automobile électrique, comportant un châssis apte à supporter un bac de batterie, ledit châssis étant pourvu d'une ouverture permettant la mise en place et le retrait dudit bac de batterie, caractérisé en ce qu'il comprend un dispositif de verrouillage déverrouillage selon l'invention.The invention relates to an electric motor vehicle, comprising a frame adapted to support a battery tray, said frame being provided with an opening for the introduction and removal of said battery tray, characterized in that it comprises a device locking unlocking according to the invention.
Les moyens de verrouillage-déverrouillage du dispositif peuvent être montés sur le châssis de support du bac de batterie ou sur le bac de batterie lui-même.The locking-unlocking means of the device can be mounted on the support frame of the battery tray or on the battery tray itself.
L'invention concerne enfin une station d'échange de batteries pour véhicule électrique selon l'invention, ladite station comportant un magasin de stockage de bacs de batterie, des moyens de convoyage d'un bac de batterie déchargée ou d'un bac de batterie chargée depuis le magasin de stockage de bacs de batteries vers le véhicule électrique, et des moyens de levage aptes à lever suffisamment le bac de batterie en vue de permettre le verrouillage ou le déverrouillage de celui-ci relativement au cadre de châssis du véhicule. Avantageusement, la station comprend des moyens d'alimentation ou d'activation desdits moyens de verrouillage déverrouillage, aptes à permettre une prise rapide et automatique d'alimentation ou d'activation des moyens de verrouillage déverrouillage, à l'approche du bac de batterie au cadre de châssis du véhicule.Finally, the invention relates to a battery exchange station for an electric vehicle according to the invention, said station comprising a battery storage tray, means for conveying a discharged battery tray or a battery tray. charged from the storage bin of battery trays to the electric vehicle, and lifting means able to lift the battery tray sufficiently to allow locking or unlocking it relative to the frame of the vehicle. Advantageously, the station comprises means for supplying or activating said unlocking locking means, capable of allowing a quick and automatic power supply or activation of the unlocking locking means, on approaching the battery box at the chassis frame of the vehicle.
De tels moyens d'alimentation ou d'activation peuvent être prévus sur le dispositif de verrouillage-déverrouillage et/ ou sur la station d'échange.Such supply or activation means may be provided on the locking-unlocking device and / or on the exchange station.
Avantageusement, lesdits moyens d'alimentation ou d'activation desdits moyens de verrouillage déverrouillage peuvent être solidaires des moyens de levage de la station d'échange. Ainsi à la mise en place des moyens de levage sur le bac de batterie, les connexions - déconnexions des moyens de verrouillage-déverrouillage et de la batterie peuvent être réalisées automatiquement.Advantageously, said means for supplying or activating said unlocking locking means may be integral with the lifting means of the exchange station. Thus, when placing the lifting means on the battery tray, the connections - disconnections of the locking-unlocking means and the battery can be performed automatically.
Il est possible de prévoir des moyens de contrôle du positionnement des moyens de levage, par exemple par des contacts de sécurité, aptes à contrôler leur mouvement par rapport à l'ouverture de cadre de châssis pour permettre une approche précise du bac de batterie relativement au cadre de châssis, assurant la déconnexion ou la connexion automatique de contact électrique de la batterie au véhicule et d'alimentation des moyens de verrouillage déverrouillage.It is possible to provide means for controlling the positioning of the lifting means, for example by safety contacts, able to control their movement relative to the frame frame opening to allow a precise approach of the battery tray relative to the chassis frame, providing disconnection or automatic connection of electrical contact of the battery to the vehicle and power locking means unlocking.
Les moyens de contrôle sont par exemple aptes à être mis en service selon un axe vertical déterminé relativement aux points de verrouillage des moyens de verrouillage déverrouillage pour assurer ledit maintien stationnaire en levée suffisante du bac de batterie relativement aux points de verrouillage des moyens de verrouillage déverrouillage.The control means are for example capable of being put into service along a determined vertical axis with respect to the locking points of the unlocking locking means to ensure said stationary holding in sufficient lifting of the battery tray relative to the locking points of the unlocking locking means. .
L'invention est illustrée ci-après à l'aide d'un exemple de réalisation et en référence aux dessins annexés, sur lesquels : la figure 1 est une vue en perspective de dessus d'un bac de batterie mis en place par le dessous du véhicule dans l'ouverture de cadre de châssis arrière d'un véhicule automobile électrique équipé, la figure 2 est une vue de dessus du bac de batterie de la figure 1 sur l'ouverture de cadre de châssis du véhicule, la figure 3 est une vue transversale schématique montrant partiellement relativement à un véhicule équipé une station d'échange de batteries selon l'invention, la figure 4 est une vue en coupe schématique d'un verrou du dispositif engagé sur le cadre de châssis du véhicule, et la figure 5 est une vue schématique transversale montrant les connexions automatiques de batterie et d'alimentation des moyens de levage de la station d'échange de batteries.The invention is illustrated below using an exemplary embodiment and with reference to the accompanying drawings, in which: Figure 1 is a perspective view from above of a battery tray set up from below of the vehicle in the rear frame frame opening of an electric motor vehicle equipped, Figure 2 is a top view of the battery tray of Figure 1 on the chassis frame opening of the vehicle, FIG. 3 is a schematic transverse view partially showing a vehicle equipped with a battery exchange station according to the invention, FIG. 4 is a schematic sectional view of a lock of the device engaged on the chassis frame of the vehicle. and Fig. 5 is a schematic cross-sectional view showing the automatic battery and power supply connections of the battery exchange station lifting means.
Avec référence aux dessins et en particulier aux figures 1 et 2, on a représenté un bac de batterie 1 mis en place sur le cadre du châssis support 3 d'un véhicule automobile électrique 5. Le bac de batterie 1 présente des dimensions et une masse relativement importantes, par exemple 0,8 x 0,5 x 0,70 m (l x L x h) et de 250 kg, pour assurer au véhicule électrique 5 une autonomie de roulement substantielle, par exemple, de 200 à 300 km pour un véhicule moyen.With reference to the drawings and in particular to Figures 1 and 2, there is shown a battery tray 1 placed on the frame of the support frame 3 of an electric motor vehicle 5. The battery tray 1 has dimensions and a mass relatively large, for example 0.8 x 0.5 x 0.70 m (W x L x H) and 250 kg, to ensure the electric vehicle 5 substantial rolling autonomy, for example, from 200 to 300 km for a vehicle way.
Le bac de batterie 1 est mis en place dans une station d'échange de batteries 7 par une ouverture inférieure 9 du cadre de châssis support 3 du véhicule, de dimensions légèrement supérieures au bac de batterie 1. Il peut aussi être mis en place par le dessus du véhicule, par exemple par une ouverture du coffre du véhicule sur les véhicules à coffre classique (non représenté).The battery tray 1 is placed in a battery exchange station 7 by a lower opening 9 of the support frame frame 3 of the vehicle, slightly larger than the battery tray 1. It can also be set up by the top of the vehicle, for example by an opening of the trunk of the vehicle on vehicles with conventional chest (not shown).
Dans l'exemple de réalisation représenté, le bac de batterie 1 est solidarisé au cadre de châssis support 3 du véhicule selon quatre points de liaison (au moins trois), représentés par des blocs 11, respectivement deux à l'avant du cadre 3 et deux à l'arrière de celui-ci, relativement à l'axe avant - arrière du véhicule.In the exemplary embodiment shown, the battery tray 1 is secured to the support frame frame 3 of the vehicle according to four connection points (at least three), represented by blocks 11, respectively two at the front of the frame 3 and two at the rear of it, relative to the front-rear axis of the vehicle.
Ces points de liaison 11 sont assurés chacun par un verrou monté sur le cadre de châssis support du véhicule. Ces verrous comportent chacun (figure 4) un vérin pneumatique 13 implanté dans le plan du cadre de châssis support 3 et dont la partie d'extrémité 15 de la tige mobile 17 fait face à faible intervalle à un évidement complémentaire 19 du bac de batterie 1.These connection points 11 are each provided by a latch mounted on the support frame frame of the vehicle. These latches each comprise (FIG. 4) a pneumatic jack 13 implanted in the plane of the support frame frame 3 and whose end portion 15 of the movable rod 17 faces a small gap to a complementary recess 19 of the battery tray 1 .
Dans cet exemple, le vérin 13 est pneumatique à simple effet dans le sens de la rentrée de la tige 17, la sortie de la tige étant assurée par le rappel d'un ressort hélicoïdal 21 monté dans le corps du vérin, lorsque le vérin n'est pas alimenté. La tige mobile 17 de verrouillage du bac de batterie s'engage dans l'évidement 19 du bac de batterie et au déverrouillage du bac de batterie, le vérin 13 est commandé pour sortir sa tige 17 de l'évidement 19 pour la rentrer dans le corps de vérin, hors de prise de l'évidement 19.In this example, the jack 13 is pneumatic with a simple effect in the direction of retraction of the rod 17, the output of the rod being provided by the return of a coil spring 21 mounted in the cylinder body, when the cylinder n is not powered. The movable rod 17 for locking the battery container engages in the recess 19 of the container of battery and the unlocking of the battery tray, the cylinder 13 is controlled to release its rod 17 from the recess 19 to enter the cylinder body, out of engagement with the recess 19.
Comme on le voit sur la figure 4, l'extrémité 15 de la tige peut venir en butée sur une butée de positionnement souple 23, par exemple en caoutchouc, apte à permettre le centrage de la tige 17 et par voie de conséquence de l'ensemble des tiges 17 de vérin au verrouillage du bac de batterie 1.As can be seen in FIG. 4, the end 15 of the rod can abut on a flexible positioning stop 23, for example made of rubber, able to allow the centering of the rod 17 and consequently of the set of rods 17 of cylinder to lock the battery tray 1.
Une station d'échange de batteries selon l'invention apparaît plus largement à la figure 3, où l'on voit les moyens de levage 25 (par exemple à parallélogramme déformable verticalement) du bac de batterie et les moyens de convoyage 27 (à rouleaux rotatifs) des bacs de batterie vers le magasin de stockage et recharge des batteries (non représenté). Dans la station d'échange de batteries 7 les véhicules sont amenés par exemple sur une plateforme 31 (représentée partiellement) au droit des moyens de levage et convoyage 25, 27.A battery exchange station according to the invention appears more broadly in FIG. 3, where the lifting means 25 (for example with vertically deformable parallelogram) of the battery tray and the conveying means 27 (with rollers) are seen. rotating) battery trays to the storage and battery charging magazine (not shown). In the battery exchange station 7 the vehicles are brought for example on a platform 31 (shown partially) to the right of the lifting and conveying means 25, 27.
Ces moyens de levage et de convoyage 25, 27 fonctionnent l'un à la suite de l'autre, les moyens de convoyage 27 s'arrêtant notamment à une position précise déterminée relativement à la plateforme 31 et au véhicule 5, où les moyens de levage 25 peuvent alors être mis en fonction pour s'élever vers ou lever un bac de batterie selon un axe vertical de référence de positionnement (Δ) relativement aux points de liaison 11. Naturellement, le véhicule est amené préalablement sur la plateforme 31 à une position précise déterminée permettant l'accès par le dessous des moyens de levage 25 selon l'axe (Δ) au bac de batterie 1 mis en place sur le véhicule.These lifting and conveying means 25, 27 operate one after the other, the conveying means 27 stopping in particular at a specific position relative to the platform 31 and the vehicle 5, where the means of lift 25 can then be turned on to raise to or lift a battery tray along a vertical positioning reference axis (Δ) relative to the connection points 11. Naturally, the vehicle is brought beforehand on the platform 31 to a precise position determined allowing access from below the lifting means 25 along the axis (Δ) to the battery tray 1 set up on the vehicle.
Le fonctionnement du dispositif de verrouillage déverrouillage et de la station d'échange de batteries sont à présent décrits. Supposons que la batterie du véhicule est déchargée et que celle-ci doit être échangée par une nouvelle batterie chargée. Le véhicule 5 est alors positionné sur la plateforme 31 à une position permettant l'accès des moyens de levage 25 sous le bac de batterie 1 et correspondant à l'axe vertical (Δ) de levée de ceux-ci.The operation of the unlocking lock device and the battery exchange station are now described. Suppose that the vehicle battery is discharged and that it must be exchanged by a new charged battery. The vehicle 5 is then positioned on the platform 31 at a position allowing access of the lifting means 25 under the battery tray 1 and corresponding to the vertical axis (Δ) of lifting thereof.
Ces moyens de levage sont avantageusement équipés de raccords 33 à prise d'emmanchement vertical automatique d'alimentation de chaque vérin (figure 5 également) (quatre au total). Lorsqu'ils s'élèvent au niveau du bac de batterie 1 en place, ces raccords 33 se connectent et alimentent les vérins.These lifting means are advantageously equipped with connectors 33 with automatic vertical fitting of supply of each jack (also Figure 5) (four in total). When they rise to the level of the battery tray 1 in place, these connectors 33 connect and feed the cylinders.
Ceux-ci sont alors commandés pour rentrer leur tige 17 et donc déverrouiller le bac de batterie 1 du cadre de châssis support 3. Pour ce faire, ils lèvent légèrement (suffisamment) le bac pour faciliter l'extraction des tiges 17 de vérin des évidements complémentaires 19 du bac de batterie.These are then controlled to retract their rod 17 and thus unlock the battery tray 1 of the support frame frame 3. To do this, they slightly lift (sufficiently) the tray to facilitate the extraction of the rods 17 of the cylinder recesses additional 19 battery tray.
Lorsque les quatre tiges de vérin 17 sont rentrées, ce qui est détecté par des contacts de sécurité (de fin de course par exemple) non représentés (internes ou externes au vérin), le bac de batterie peut être extrait du véhicule et convoyé vers le magasin de stockage.When the four cylinder rods 17 are retracted, which is detected by safety contacts (end of travel for example) not shown (internal or external to the cylinder), the battery tray can be removed from the vehicle and conveyed to the warehouse.
Les moyens de levage 25 sont alors mis en action pour descendre selon l'axe (Δ) le bac de batterie 1 jusqu'au niveau des moyens de convoyage 27, où ces derniers peuvent alors être actionnés pour amener le bac de batterie déchargée 1 au magasin de stockage.The lifting means 25 are then actuated to descend along the axis (Δ) the battery tray 1 to the level of the conveying means 27, where the latter can then be actuated to bring the discharged battery tray 1 to warehouse.
Le bac de batterie déchargée est alors déposé au magasin, puis un bac de batterie chargée 1 est alors déposé sur les moyens de convoyage 27 et celui-ci peut retourner en sens inverse de la manœuvre précédente jusque sous le véhicule où le bac de batterie peut être élevé par les moyens de levage 25, selon l'axe vertical déterminé (Δ) de positionnement du bac sous l'ouverture 9 du cadre de châssis du véhicule.The discharged battery tray is then deposited in the magazine, then a loaded battery tray 1 is then deposited on the conveying means 27 and it can return in the opposite direction from the previous maneuver to the vehicle where the battery tray can be raised by the lifting means 25, according to the determined vertical axis (Δ) of positioning the tray under the opening 9 of the chassis frame of the vehicle.
Le bac est alors levé au niveau du cadre à une hauteur déterminée contrôlée par un contact de sécurité non représenté, puis maintenu légèrement (suffisamment) au dessus de la position d'implantation du bac de batterie sur le cadre de châssis du véhicule. La connexion électrique de la batterie au véhicule est réalisée simultanément et de façon automatique (par contact), par exemple par un raccord à manchon de contact électrique élastique supérieur 35.The tray is then raised at the frame to a determined height controlled by a safety contact not shown, and then held slightly (sufficiently) above the position of implantation of the battery tray on the chassis frame of the vehicle. The electrical connection of the battery to the vehicle is performed simultaneously and automatically (by contact), for example by an upper elastic electrical contact sleeve 35.
De même, le raccordement d'alimentation 33 des vérins est réalisé comme décrit précédemment. L'alimentation des vérins est alors commandée pour évacuer la pression pneumatique des vérins et leur tige 17 sous le rappel de leur ressort 21 est sortie jusque dans l'évidement correspondant 19 du cadre de châssis en vue du verrouillage du bac de batterie sur le châssis du véhicule.Similarly, the supply connection 33 of the cylinders is made as described above. The power supply of the cylinders is then controlled to evacuate the pneumatic pressure of the cylinders and their rod 17 under the return of their spring 21 is output into the corresponding recess 19 of the chassis frame for the locking of the battery tray on the frame of the vehicle.
Le verrouillage du bac de batterie est alors réalisé, ce qui est renseigné par les contacts de sécurité (non représentés) détectant la sortie de tige de vérin. L'opération d'échange de la batterie est alors réalisée et a demandé peu de temps, environ deux à trois minutes. The locking of the battery tray is then performed, which is indicated by the safety contacts (not shown) detecting the cylinder rod outlet. The exchange operation of the battery is then performed and required little time, about two to three minutes.

Claims

REVENDICATIONS
1. Dispositif de verrouillage déverrouillage d'un bac de batterie (1) de véhicule automobile électrique (5), lequel véhicule (5) est apte à successivement libérer et recevoir sur le cadre (3) de son châssis, par un axe vertical de référence (Δ) relativement à des points de liaison (1 1), ledit bac de batterie (1) par une ouverture inférieure ou supérieure (9) du cadre de son châssis, caractérisé en ce qu'il comporte des moyens de verrouillage déverrouillage (13, 15, 19) du bac de batterie (1) au cadre (3) de châssis du véhicule, lesdits moyens de verrouillage déverrouillage (13, 15, 19) comportant au moins une saillie ou tige mobile (17) actionnée par vérin (13), apte à venir en prise de verrouillage déverrouillage selon un point (1 1) dans un évidement complémentaire (19) du cadre de châssis (3) ou du bac de batterie (1), en ce qu'il comprend des moyens d'alimentation ou d'activation (33) desdits moyens de verrouillage déverrouillage (13, 15, 19), aptes à permettre une prise rapide et automatique d'alimentation ou d'activation des moyens de verrouillage déverrouillage (13, 15, 19), à l'approche du bac de batterie (1) au cadre (3) de châssis du véhicule, et comprend des moyens de connexion électrique automatique (35) de la batterie au véhicule.1. Unlocking device for a battery tank (1) of an electric motor vehicle (5), which vehicle (5) is able successively to release and receive on the frame (3) of its frame, by a vertical axis of reference (Δ) relative to connection points (1 1), said battery tray (1) through a lower or upper opening (9) of the frame of its frame, characterized in that it comprises unlocking locking means ( 13, 15, 19) of the battery tray (1) to the chassis frame (3) of the vehicle, said unlocking locking means (13, 15, 19) having at least one projection or movable rod (17) actuated by cylinder ( 13), adapted to engage unlocking lock according to a point (1 1) in a complementary recess (19) of the frame frame (3) or the battery tray (1), in that it comprises means for detecting supply or activation (33) of said unlocking locking means (13, 15, 19), adapted to allow a quick and automatic power supply or activation of the unlocking locking means (13, 15, 19) on approaching the battery tray (1) to the chassis frame (3) of the vehicle, and includes automatic electrical connection means (35) from the battery to the vehicle.
2. Dispositif selon la revendication 1, caractérisé en ce que le vérin (13) peut être un vérin hydraulique ou pneumatique ou encore un vérin électrique à vis.2. Device according to claim 1, characterized in that the jack (13) may be a hydraulic or pneumatic cylinder or an electric jack screw.
3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le vérin (13) est un vérin pneumatique à simple effet, agissant à la rentrée de la tige (17) pour le déverrouillage du bac de batterie (1), la sortie de la tige (17) vers l'évidement (19) étant réalisée à l'aide d'un moyen ressort (21), par exemple un ressort hélicoïdal monté coaxialement au vérin (13) et en rappel externe de la tige (17) de vérin.3. Device according to any one of claims 1 or 2, characterized in that the cylinder (13) is a single acting pneumatic cylinder, acting on the retraction of the rod (17) for unlocking the battery tray (1). ), the output of the rod (17) towards the recess (19) being made by means of a spring means (21), for example a coil spring coaxially mounted to the cylinder (13) and external reminder of the rod (17) of cylinder.
4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens de verrouillage déverrouillage (13, 15, 19) sont montés solidaires du cadre (3) de châssis du véhicule.4. Device according to any one of claims 1 to 3, characterized in that the unlocking locking means (13, 15, 19) are mounted integral with the chassis frame (3) of the vehicle.
5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les moyens d'alimentation ou d'activation (33) desdits moyens de verrouillage déverrouillage (13, 15, 19) sont des raccords (33) à prise d'emmanchement vertical automatique d'alimentation de chaque vérin et les moyens de connexion électrique automatique (35) de la batterie au véhicule sont un raccord à manchon de contact électrique élastique supérieur (35) .5. Device according to any one of claims 1 to 4, characterized in that the supply means or activation (33) of said unlocking locking means (13, 15, 19) are couplings (33) with automatic vertical power-in jacking of each cylinder and the means of automatic electrical connection (35) of the battery to the vehicle are an upper elastic electrical contact sleeve connection (35).
6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte également un ensemble de contacts de sécurité reliés aux moyens de verrouillage déverrouillage (13, 15, 19), et destinés à renseigner du bon déverrouillage verrouillage du bac batterie (1) au véhicule, et à autoriser les diverses manœuvres de déverrouillage du bac batterie (1) et d'extraction de celui-ci du véhicule, ou de mise en place de celui-ci sur le véhicule respectivement.6. Device according to any one of the preceding claims, characterized in that it also comprises a set of safety contacts connected to the unlocking locking means (13, 15, 19), and intended to provide good unlocking lock tray battery (1) to the vehicle, and to allow the various maneuvers unlocking the battery tray (1) and extracting it from the vehicle, or placing it on the vehicle respectively.
7. Véhicule automobile électrique (5), comportant un châssis apte à supporter un bac de batterie (1), ledit châssis étant pourvu d'une ouverture inférieure ou supérieure permettant la mise en place et le retrait du bac de batterie, caractérisé en ce qu'il comprend un dispositif de verrouillage déverrouillage selon l'une des revendications 1 à 6.7. Electric motor vehicle (5), comprising a frame adapted to support a battery tray (1), said frame being provided with a lower or upper opening for the introduction and removal of the battery tray, characterized in that it comprises an unlocking locking device according to one of claims 1 to 6.
8. Station d'échange de batteries pour véhicule électrique (5) selon la revendication 7, ladite station comportant un magasin de stockage de bacs de batterie (1), des moyens de convoyage (27) d'un bac de batterie déchargée (1) ou d'un bac de batterie chargée (1) à ou depuis le magasin de stockage de bacs de batteries (1) vers le véhicule électrique, et des moyens de levage (25) aptes à lever suffisamment le bac de batterie (1) en vue de permettre le verrouillage ou le déverrouillage de celui-ci relativement au cadre (3) de châssis du véhicule.8. battery exchange station for electric vehicle (5) according to claim 7, said station comprising a battery tray storage (1), conveying means (27) of a discharged battery tray (1). ) or a charged battery tray (1) to or from the battery tray (1) to the electric vehicle, and lifting means (25) for lifting the battery tray (1) sufficiently to allow the locking or unlocking thereof relative to the chassis frame (3) of the vehicle.
9. Station d'échange de batterie selon la revendication 8, caractérisée en ce qu'elle comprend des moyens d'alimentation ou d'activation (33) desdits moyens de verrouillage déverrouillage (13, 15, 19), aptes à permettre une prise rapide et automatique d'alimentation ou d'activation des moyens de verrouillage déverrouillage (13, 15, 19), à l'approche du bac de batterie (1) au cadre (3) de châssis du véhicule.9. battery exchange station according to claim 8, characterized in that it comprises means for supplying or activating (33) said unlocking locking means (13, 15, 19), adapted to allow a grip fast and automatic supply or activation of the unlocking locking means (13, 15, 19), on approaching the battery tray (1) to the chassis frame (3) of the vehicle.
10. Station d'échange de batterie selon la revendication 9, caractérisée en ce que lesdits moyens d'alimentation ou d'activation (33) desdits moyens de verrouillage déverrouillage (13, 15, 19) peuvent être solidaires des moyens de levage (25). 10. Battery exchange station according to claim 9, characterized in that said means for supplying or activating (33) said locking means. unlocking (13, 15, 19) can be secured to the lifting means (25).
PCT/FR2009/051283 2008-07-08 2009-07-02 Device for automatically locking and unlocking an electric motor vehicle battery tray, vehicle and battery exchange station both equipped with such a device WO2010004192A2 (en)

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FR0803872A FR2933656B1 (en) 2008-07-08 2008-07-08 AUTOMATIC LOCKING AND UNLOCKING DEVICE FOR AN ELECTRIC MOTOR VEHICLE BATTERY BOX, VEHICLE AND BATTERY EXCHANGE STATION EQUIPPED WITH SUCH A DEVICE
FR0803872 2008-07-08

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