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EP4045352A1 - Unité de positionnement pour une station de charge et procédé pour établir un contact - Google Patents

Unité de positionnement pour une station de charge et procédé pour établir un contact

Info

Publication number
EP4045352A1
EP4045352A1 EP19797184.9A EP19797184A EP4045352A1 EP 4045352 A1 EP4045352 A1 EP 4045352A1 EP 19797184 A EP19797184 A EP 19797184A EP 4045352 A1 EP4045352 A1 EP 4045352A1
Authority
EP
European Patent Office
Prior art keywords
contact
positioning unit
upper segment
segment
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19797184.9A
Other languages
German (de)
English (en)
Inventor
Lothar Schneider
Timo STAUBACH
Holger LEIB
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schunk Transit Systems GmbH
Original Assignee
Schunk Transit Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schunk Transit Systems GmbH filed Critical Schunk Transit Systems GmbH
Publication of EP4045352A1 publication Critical patent/EP4045352A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • 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
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/42—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from individual contact pieces connected to the power supply line
    • 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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • 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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • 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
    • B60L53/30—Constructional details of charging stations
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/18—Buses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/143—Busses
    • 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
    • B60Y2200/91—Electric vehicles
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • Positioning unit for a charging station and method for contacting The invention relates to a positioning unit and a method for
  • an electrically conductive connection between a stationary charging station and a vehicle, in particular an electric bus or the like whereby by means of the positioning unit an electrical charging contact of the positioning unit can be moved relative to a charging contact surface and can be contacted with it
  • the positioning unit having a positioning device and a drive device for driving the positioning device, wherein the charging contact can be positioned by means of the positioning device between a contact position for power transmission and a retraction position for power interruption
  • the drive device having an adjustment drive for forming an adjustment force acting on the positioning device and a spring device mechanically cooperating with the adjustment drive
  • the spring device comprises at least one contact spring, with the adjusting drive and the contact spring exerting a contact force on the charging contact t area can be formed.
  • Such positioning units and methods are known from the prior art and are regularly used in electrically powered vehicles.
  • These vehicles can be electric buses, but also, in principle, other vehicles, such as a train or a tram, that are not permanently electrically connected to a contact wire or the like.
  • an electrical energy storage device is charged by a charging station when the journey is interrupted at a stop or a vehicle depot.
  • the vehicle is electrically connected to the charging station in the vehicle depot, the energy storage device of the vehicle being charged, for example overnight.
  • a contact device is used that is mounted or positioned on the positioning unit above the vehicle at a parking space of the vehicle in the vehicle depot.
  • a charging contact of the contact device is then moved by means of the positioning unit in the direction of a charging contact surface on a roof of the vehicle and an electrical connection is established.
  • a contact device can have at least four charging contacts, two charging contacts for energy transmission, one charging contact as a grounding conductor, and another charging contact for data transmission.
  • positioning units such as those used, for example, on masts of stopping points, are used. Since the equipment of the vehicle depot is an existing infrastructure or building, the positioning units used at stops cannot easily be used, for example in a hall. For example, a ceiling height cannot be high enough for a positioning unit to be installed, or the positioning unit must be attached far below a ceiling. At the same time, the positioning units designed for use at a bus stop are designed to be robust against environmental influences and are therefore comparatively heavy, which increases the manufacturing costs of the positioning unit. Furthermore, the known positioning units are constructed to be comparatively large, since there is sufficient space available on a mast of a stop, which is disadvantageous in a hall due to, for example, existing beams or supply lines in the ceiling area.
  • an electrical charging contact of the positioning unit can be moved relative to a charging contact surface by means of the positioning unit and can be contacted with it, the positioning unit having a positioning device and a Drive device for driving the positioning device wherein the charging contact can be positioned by means of the positioning device between a contact position for power transmission and a retraction position for power interruption, the drive device having an adjusting drive for forming an adjusting force acting on the positioning device and a spring device mechanically interacting with the adjusting drive, the spring device comprises at least one contact spring, the adjustment drive and the contact spring being able to generate a contact force on the charging contact surface, the positioning device having a fixed bearing, an upper segment arranged on the fixed bearing so as to be linearly movable in a vertical adjustment direction, and one on the upper segment linearly movable in the vertical adjustment direction comprises arranged lower segment, wherein the contact spring is coupled to the fixed bearing
  • the positioning unit is therefore part of a stationary charging station for an electrically powered vehicle and is used to move the electrical charging contact or the charging contacts to one charging contact surface of the vehicle, which is arranged on a vehicle roof, and to make electrical contact with it. It is then possible, for example, to supply the vehicle with electrical energy in a vehicle depot and to store this in the vehicle.
  • the movement of the charging contact (s) on the respective charging contact surface is carried out with the positioning unit, which is arranged above the vehicle on a support structure or ceiling structure of a trap.
  • the charging contact or the charging contacts are arranged at a lower end of the positioning unit and can be moved from an upper retracted position to a lower contact position for power transmission or contacting the charging contact surfaces.
  • a defined contact force is exerted on the respective charging contact surfaces.
  • the movement of the charging contact or the charging contacts takes place with the positioning device, which can be actuated with an adjusting drive of the Antriebvorrich device.
  • the adjustment drive causes an adjustment force on the Positioniervor direction, the adjustment drive cooperating with the Federein direction, so that the contact force of the Verstellan and the contact spring of the spring device is formed on the Ladenheftflä surface.
  • the positioning device has a fixed bearing, which is immovably mountable on a support structure or ceiling structure and an upper segment arranged on the fixed bearing, which is linearly movable on the fixed bearing in a vertical adjustment direction. Furthermore, a lower segment of the positioning device is arranged on the upper segment, which segment can also be moved linearly in the vertical adjustment direction on the upper segment. The lower segment is therefore coupled to the upper segment and the upper segment to the fixed bearing and can be moved in the manner of a telescopic guide between the retracted position and the contact position. Furthermore, the contact spring is coupled to the fixed bearing and the upper segment and the upper segment can be moved relative to the lower segment by means of the adjustment drive. A movement of the lower segment by the adjustment drive relative to the upper segment then causes a movement of the lower segment in the direction of the contact position or the retracted position and thus a corresponding movement of the charging contact.
  • a positioning unit designed in this way is particularly easy to manufacture and is comparatively compact in comparison to positioning units with articulated arms.
  • a corresponding distance between the entry position and contact position can be bridged according to an arbitrarily designed length from the upper segment and lower segment, so that the positioning unit can easily be designed for different heights of vehicles and carrier structures or roof structures. Due to the compact design of the positioning unit, it can then also be arranged flexibly on a roof structure without the need to convert the roof structure. Overall, the positioning purity can therefore be used advantageously in a vehicle depot in addition to its cost-effective production without great effort.
  • the adjustment drive can be coupled to the upper segment and the lower segment in such a way that the upper segment can be moved relative to the lower segment by means of the adjustment force.
  • the adjusting force can consequently be formed between the upper segment and the lower segment, so that a relative movement is brought about from the upper segment to the lower segment.
  • the adjustment drive can be fixedly arranged on the upper segment or the lower segment. An arrangement of the adjustment drive locally remote from the upper segment and the lower segment is also possible, provided that the adjustment drive is coupled directly to the upper segment and the lower segment, for example via actuating elements.
  • the adjustment drive and the contact spring can be coupled to one another in a mechanical series connection in such a way that the contact force on the charging contact surface can be formed by the adjustment drive and the contact spring. Due to the mechanical series connection of the adjusting drive and contact spring, the positioning device can be moved by the adjusting force of the adjusting drive and, in the case of a Contacting the charging contact surface with the charging contact, the adjustment force can be further increased. The further increased adjusting force is then stored by the contact spring connected to the adjusting drive and transmitted as a contact force to the positioning device or the charging contact surface. The increase in the adjusting force is therefore not used to move the positioning device further in the direction of the charging contact surface, but rather to develop or increase the contact force on the charging contact surface.
  • the dead weight can initially be at least partially compensated for with the contact spring.
  • the contact spring is then initially tensioned by its own weight or stores spring force.
  • the further increased adjusting force then results from the dead weight and the relief of the contact spring connected to the adjusting drive, the dead weight being transmitted as a contact force to the positioning device or the charging contact surface.
  • the increase in the adjusting force is not used to move the positioning device further in the direction of the charging contact surface, but rather to develop or increase the contact force on the charging contact surface. It is thus possible, regardless of the height of the charging contact surface above a roadway or a relative distance from the charging contact surface and the charging contact in a retracted position of the charging contact, to always train an essentially equally high contact force on the charging contact surface.
  • the contact spring can be coupled to the fixed bearing and the upper segment.
  • the fixed bearing is then by definition not movable relative to further bearings of the positioning device and the drive device.
  • the upper segment can then be connected directly to the fixed bearing via the contact spring.
  • the contact spring can be a tension spring and / or a compression spring. In principle, any type of spring is suitable that enables a spring force or tensile force or compressive force to be formed between the fixed bearing and the upper segment when these are moved relative to one another.
  • several con tact springs can also be provided, which form the spring device.
  • the fixed bearing and the upper segment can be connected to an upper linear guide, wherein the upper segment and the lower segment can be connected to a lower linear guide.
  • a linear guide can be formed particularly simply by two guide elements that are positively connected to one another and can be moved relative to one another in one axis.
  • the positioning device can have at least one further segment which connects the upper segment to the lower segment and is freely linearly movable relative to the upper segment and the lower segment in the vertical adjustment direction.
  • the positioning device can in principle have a multiplicity of such segments which are connected to one another in a row arrangement. This type of connection of the segments makes it possible, depending on the number and length of the respective segments, to push the positioning device in the A driving position into a small space with a low overall height.
  • the positioning unit can be designed particularly cost-effectively if the fixed bearing and the segments are formed from profiles which are arranged coaxially relative to one another.
  • the dimensions of the respective profiles can be selected so that the profiles can be plugged into one another or pushed one into the other relative to one another.
  • the profiles are hollow profiles, an inner surface of a hollow profile can then also rest against an outer surface of a hollow profile in such a way that a telescopic guide is formed between the two hollow profiles. Nevertheless, a distance between the hollow profiles can be so large that between a gap is formed in the hollow profiles.
  • a linear guide for displacing the hollow profiles relative to one another can then be arranged specifically in the gap.
  • the hollow profiles can have a square, rectangular or round cross section. Instead of hollow profiles, solid profiles, such as rods or plates, can also be used.
  • the profile of the fixed bearing can form a housing of the positioning device, within which the segments can be received. It can also be provided that the profile of the fixed bearing has the comparatively largest cross section of all profiles. A length of the remaining profiles can then be dimensioned such that they can be taken up essentially within the housing of the positioning device designed in this way. Conversely, it is also possible that the profile of the lower segment forms the housing of the positioning device.
  • the upper segment on the fixed bearing and / or the lower segment on the upper segment can be tiltable by an angle ⁇ of> 0 ° to 5 ° relative to a vertical axis running in the vertical adjustment direction.
  • the fixed bearing and / or the segments are connected to one another in such a way that a horizontal relative movement is also possible.
  • a linear guide for forming the vertical relative movement of the fixed bearing and segments is an asterbil det
  • the linear guide can be formed out with a corresponding play, or the linear guide itself can be designed to be pivotable at the angle ⁇ .
  • the possibility of pivoting at least the lower segment at the angle ⁇ can be used to compensate for small movements or fluctuations of the vehicle below the positioning unit, for example when people get in and out or when the vehicle is loaded and unloaded.
  • the adjustment drive can have a position sensor or displacement sensor with which a spring travel of the contact spring can be determined, and / or a force sensor with which the contact force can be determined.
  • a contact force acting on the charging contact surface can be limited.
  • the limitation can take place in that the adjustment drive is switched off when a certain spring travel or a measured force is reached. Damage to the positioning unit or the charging contact surface can thus be easily prevented.
  • the adjustment drive can have a control device and an electric motor or a pneumatic drive which can be controlled by means of the control device. Furthermore, the adjustment drive can have a buffer battery which, in the event of a power failure or other malfunctions, ensures that the positioning device is automatically retracted into a retracted position due to an emergency power supply from the buffer battery.
  • the buffer battery can be integrated in the adjustment drive. Instead of the electric motor or the pneumatic drive, other suitable drives can also be provided.
  • the electric motor can be a linear motor, preferably a spindle drive, it being possible for the electric motor to be fixedly arranged on the upper segment or the lower segment.
  • the spindle drive can also be designed to be self-locking, depending on the pitch of the spindle.
  • the positioning device can then easily be moved into a desired position and fixed without further aids.
  • the linear drive can also have a displacement sensor with which a range of motion of the positioning device can be limited. An incremental encoder or an absolute encoder, for example, can be used as the displacement sensor. It is then always possible to determine an exact working position of the linear drive.
  • the adjustment drive can be designed so that a torque of the electric motor can be detected by the control device, wherein the contact force can be controlled by the control device as a function of the torque of the electric motor.
  • the control device can be formed from control electronics for the electric motor. It can be provided The control electronics are integrated directly into the electric motor.
  • the control device can detect a torque of the electric motor via, for example, the energy expended and regulate the electric motor in such a way that the defined contact force from the electric motor is formed on the charging contact surface via the positioning device and the charging contact. It is then possible to actively adapt a direct force effect on the positioning device and, if necessary, on the charging contact, optionally also depending on various influencing factors. It is thus possible, regardless of a relative distance between the charging contact surface and the positioning unit, or a height of the vehicle, to form a contact force that is always the same on the charging contact surface.
  • the positioning unit can have a holding frame for fastening the positioning device above a vehicle, wherein the fixed bearing can be arranged on the holding frame.
  • the holding frame can be designed so that it can be easily attached to a mast or a ceiling structure of a building.
  • the contact spring of the spring device can therefore in principle also be connected to the holding frame.
  • the fixed bearing can be fastened to the holding frame in the vertical Verstellrich device adjustable. If the fixed bearing is formed, for example, from a hollow profile running in the vertical direction, the holding frame can surround the fixed bearing. Depending on the type of fastening of the fixed bearing to the holding frame, the setting of a height of the fixed bearing above a roadway, and thus, for example, an adaptation to a ceiling height, can easily be made possible. In a particularly simple embodiment, the holding frame can also be permanently welded or screwed to the fixed bearing. If the fixed bearing is arranged essentially on an upper side of the holding frame, the fixed bearing, and thus also a predominant part of the positioning unit, can be hidden in a ceiling.
  • the positioning unit can have a contact device with two charging contacts with at least two charging contacts arranged thereon, wherein the charging contacts can be connected to one another via a parallel linkage of the contact device with two connecting rods arranged in parallel and with two carrier rods arranged in parallel, the carrier rods each in one of two paralle len planes of movement can be connected to the connecting rods via spaced-apart connecting joints ke and can form a parallelogram with the connecting rods.
  • a positioning unit of this type at least four charging contacts can be moved on each charging contact surface of a vehicle and electrically contacted with them. It is also possible to evenly distribute or train the contact force on the respective charging contact surfaces.
  • the contact device can be arranged on the lower segment in such a way that the contact device is held essentially in the middle.
  • the parallel linkage can be formed from comparatively long connec tion rods and short support rods which are arranged vertically and connected to the connecting rods via the connecting joints.
  • the connecting rods can thus be inclined relative to a horizontal plane, wherein the support rods can always be arranged vertically within the two parallel planes of movement. If the connecting joints are arranged coaxially to the support joints, there is always a uniform distribution of force from a contact force exerted centrally on the contact device on the two support rods regardless of an inclination of the connection rods.
  • the connecting rods can be connected to the lower segment of the Kunststoffvor direction in a carrier plane running parallel and centric to the planes of movement via two spaced-apart carrier joints, wherein the charging contact carriers can each be connected to the carrier rod via a swivel joint, the swivel joints being orthogonal to the connecting joints arranged can be, wherein the charging contact carrier can each hold the charging contacts coaxially relative to the axis of rotation.
  • the charging contact carriers can each be arranged on the carrier rods via the swivel joint.
  • the contact force can be distributed proportionally to the two charging contacts arranged on the charging contact carrier via the Trä gerstangen or the swivel joint. If the swivel joints are arranged orthogonally relative to the connecting joints, it is possible to adjust the height of the charging contacts to a transverse and longitudinal inclination of a vehicle relative to the vehicle and, at the same time, secure contacting of the respective charging contact surfaces of the vehicle with an essentially equal proportional contact force to achieve with simple means.
  • an electrical charging contact of the positioning unit is moved relative to a charging contact surface by means of a positioning unit and is contacted with it, a positioning device of the positioning unit being driven by a drive device the positioning unit is driven, wherein the charging contact is positioned by means of the positioning device between a contact position for power transmission and a retracted position for Stromun interruption, wherein by means of an adjustment drive of the drive device, an adjustment force is formed which acts on the positioning device, and a spring device of the drive device with the adjusting drive interacts mechanically, with a contact force from the adjusting drive and at least one contact spring of the spring device t is thoroughlybil det on the charging contact surface, wherein an upper segment of the positioning device is moved linearly on a fixed bearing of the positioning device in a vertical adjustment direction, and a lower segment of the positioning device is moved linearly on the upper segment in the vertical adjustment direction is, wherein the
  • a movement of the positioning device from the retracted position to the contact position can comprise the following steps: a. Moving the lower segment and the electrical charging contact arranged thereon by means of the adjusting drive downwards and relative to the upper segment, wherein the upper segment can rest on a stop of the positioning device; b. Stopping the lower segment in the contact position by placing the electrical charging contact on the charging contact surface; c. Moving the upper segment upwards and relative to the lower segment and the fixed bearing by continuing to operate the adjusting drive; d. and simultaneous formation of the contact force by tensioning or relaxing the contact spring coupled to the upper segment and the fixed bearing.
  • the upper segment can rest on the stop as a result of a spring force caused by the spring direction and / or a dead weight of the components arranged on the fixed bearing.
  • the contact force is increased further until the adjustment drive is switched off, for example by means of a limit switch.
  • the charging contact or the positioning device is moved into the retracted position in the reverse order.
  • FIG. 1 is a perspective view of a first embodiment of a positioning unit in a first working position
  • FIG. 4a shows a second embodiment of a positioning unit in a first working position
  • FIGS. 1 to 3 show a positioning unit 10 for forming an electrically conductive connection between a stationary charging station, not shown here, and a vehicle, also not shown, below the positioning unit, in particular an electric bus or the like.
  • the positioning unit 10 comprises a positioning device 12 and a drive device 13 for driving the positioning device 12.
  • the charging contacts 1 1 are moved by means of the positioning device 12 between a contact position shown in FIGS. 2 and 3 for power transmission and a retraction position shown in FIG. 1 for power interruption positioned.
  • the charging contacts 11 are part of a contact device 14 which is arranged on the positioning device 12.
  • the drive device 13 has an adjusting drive, not shown in detail here, for forming an adjusting force acting on the positioning device 12, and a spring device 15 that interacts mechanically with the adjusting drive.
  • the spring device 15 comprises contact springs 16, it being possible for the adjusting drive and the contact springs 16 to generate a contact force on the respective charging contact surfaces.
  • the positioning device 12 further comprises a fixed bearing 17, an upper segment 18 arranged on the fixed bearing so as to be linearly movable in a vertical adjustment direction, and a lower segment 19 arranged on the upper segment 18 so as to be linearly movable in the vertical adjustment direction.
  • the fixed bearing 17, the upper segment 18 and the lower segment 19 are each formed from profiles 20, 21 and 22, respectively.
  • the contact device 14 is attached to a lower end 23 of the profile 22 of the lower segment 19.
  • the profile 20 forming the fixed bearing 17 is fastened to a frame 24 of the positioning unit 10.
  • the Holding frame 24 can be attached to a ceiling structure, not shown here, of a building, such as a hall of a vehicle depot.
  • the profile 17 also forms a housing 25 of the positioning device 12, within which the profiles 21 and 22 can be received in the retracted position.
  • a linear guide 26 is arranged between the profile 20 and the profile 21 of the upper segment 18, so that the profile 20 can be easily moved relative to the profile 21 in the vertical adjustment direction. Furthermore, a linear guide 27 is formed between the profile 21 of the upper segment and the profile 22 of the lower segment 19, in that the profile 22 surrounds the profile 21 and rests against it in a longitudinally movable manner.
  • the contact springs 16 are coupled to the profile 20 of the Festla gers and the upper segment 18 and formed by tension / compression springs 28.
  • the contact device 14 has two charging contact carriers 29, at the distal ends 30 of which contact strips 31 are attached, which form the charging contacts 11.
  • the charging contact carriers 29, which are essentially arc-shaped or O-shaped, are connected to a parallel linkage 32 of the contact device 14, formed from connecting rods 33 and vertically arranged carrier rods 34.
  • the connecting rods 33 are movably connected to the carrier rods 34 via connecting joints 35, the charging contact carriers 29 each being movably connected to the carrier rod 34 via a swivel joint 36.
  • support joints 37 connect the lower segment 19 with the connec tion rods 33 movable.
  • FIGS. 4a to 4d shows a positioning unit 38 without a contact device in different working positions.
  • the positioning unit 38 is designed here with a holding frame 39, a fixed bearing 40 arranged thereon, as well as an upper segment 41, a further segment 42 and a lower segment 43.
  • the upper segment 41, the further segment 42 and the lower segment 43 are connected to one another in the manner of a telescope and can be moved.
  • a spring device 44 with a contact spring 45 is also provided, the contact spring 45 being coupled to the fixed bearing 40 and the upper segment 41.
  • An adjustment drive not shown here, is arranged within segments 41, 42 and 43 and causes the upper segment 41 to move relative to the lower segment 43, with the further segment 42 also moving depending on the adjustment length of the adjustment drive.
  • a retracted position of the correspondingly formed positioning device 46 of the positioning unit 38 is shown.
  • the upper segment 41 rests against a stop 47 on the fixed bearing 40.
  • the adjusting drive By operating the adjusting drive, at least the lower segment 43 is moved out of the upper segment 41 and lowered Help downward as shown in FIG. 4b.
  • the lower segment 43 or the contact device, not shown here meets an abutment 48, which can be a charging contact device, also not shown here, on a roof of a vehicle.
  • the adjusting drive By continuing to operate the adjusting drive, at least the lower segment 43 is moved further out of the upper segment 41, with the upper segment 41 moving upwards due to the abutment 48.
  • the upper segment 41 is thus lifted off the stop 47 and the contact spring 45 is tensioned or relieved, depending on which type of contact spring, tension spring or compression spring is used.
  • a spring force of the contact spring 45 causes a contact force on the charging contact surface, not shown here.
  • the positioning device 38 is thus in a contact position. A change from the contact position to the retraction position can be done in reverse order.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne une unité de positionnement (10) et un procédé pour former une connexion électriquement conductrice entre une station de charge fixe et un véhicule, en particulier un autobus électrique, ou analogue, à l'aide d'une unité de positionnement, à l'aide de l'unité de positionnement, un contact de charge électrique (11) de l'unité de positionnement étant mobile par rapport à la surface de contact de charge et pouvant être amené en contact avec celle-ci, l'unité de positionnement ayant un appareil de positionnement (12) et un appareil d'entraînement (13) pour entraîner l'appareil de positionnement, le contact de charge pouvant être positionné à l'aide de l'appareil de positionnement entre une position de contact, pour une transmission de courant, et une position d'entrée, pour une interruption de courant, l'appareil d'entraînement ayant un entraînement d'ajustement pour générer une force d'ajustement agissant sur l'appareil de positionnement et un dispositif à ressorts (15) qui interagit mécaniquement avec l'entraînement d'ajustement, le dispositif à ressorts comprenant au moins un ressort de contact (16), une force de contact sur la surface de contact de charge pouvant être formée par l'entraînement d'ajustement et le ressort de contact, l'appareil de positionnement comprenant un support fixe (17), un segment supérieur (18) disposé sur le support fixe de manière à être linéairement mobile dans une direction d'ajustement verticale, et un segment inférieur (19) disposé sur le segment supérieur de manière à être linéairement mobile dans la direction d'ajustement verticale, le ressort de contact étant couplé au support fixe et au segment supérieur, le segment supérieur étant mobile par rapport au segment inférieur à l'aide de l'entraînement d'ajustement.
EP19797184.9A 2019-10-17 2019-10-17 Unité de positionnement pour une station de charge et procédé pour établir un contact Pending EP4045352A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/078272 WO2021073745A1 (fr) 2019-10-17 2019-10-17 Unité de positionnement pour une station de charge et procédé pour établir un contact

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EP4045352A1 true EP4045352A1 (fr) 2022-08-24

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EP19797184.9A Pending EP4045352A1 (fr) 2019-10-17 2019-10-17 Unité de positionnement pour une station de charge et procédé pour établir un contact

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US (1) US20240227595A9 (fr)
EP (1) EP4045352A1 (fr)
JP (1) JP7328450B2 (fr)
KR (1) KR102741792B1 (fr)
CN (1) CN114929506B (fr)
AU (1) AU2019470169A1 (fr)
CA (1) CA3153987A1 (fr)
WO (1) WO2021073745A1 (fr)

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WO2021073745A1 (fr) * 2019-10-17 2021-04-22 Schunk Transit Systems Gmbh Unité de positionnement pour une station de charge et procédé pour établir un contact
KR20240088924A (ko) * 2021-10-25 2024-06-20 슈운크 트랜지트 시스템즈 게엠베하 충전소용 포지셔닝 유닛 및 접점 확립 방법
DE102022206751A1 (de) * 2022-07-01 2024-01-04 Siemens Aktiengesellschaft Invers-Pantograph für eine Ladevorrichtung für Elektrofahrzeuge

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Publication number Publication date
US20240131942A1 (en) 2024-04-25
CA3153987A1 (fr) 2021-04-22
AU2019470169A1 (en) 2022-04-21
CN114929506B (zh) 2025-02-28
JP7328450B2 (ja) 2023-08-16
KR102741792B1 (ko) 2024-12-11
US20240227595A9 (en) 2024-07-11
CN114929506A (zh) 2022-08-19
WO2021073745A1 (fr) 2021-04-22
KR20220082861A (ko) 2022-06-17
JP2023502565A (ja) 2023-01-25

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