EP4344425A1 - Pantographe pour véhicule à moteur électrique - Google Patents

Pantographe pour véhicule à moteur électrique

Info

Publication number
EP4344425A1
EP4344425A1 EP22751383.5A EP22751383A EP4344425A1 EP 4344425 A1 EP4344425 A1 EP 4344425A1 EP 22751383 A EP22751383 A EP 22751383A EP 4344425 A1 EP4344425 A1 EP 4344425A1
Authority
EP
European Patent Office
Prior art keywords
pantograph
main frame
motor vehicle
arm
potential level
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
EP22751383.5A
Other languages
German (de)
English (en)
Inventor
Florian BÜHS
Helge Molthan
Thomas Stark
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.)
Siemens Mobility GmbH
Original Assignee
Siemens Mobility 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 Siemens Mobility GmbH filed Critical Siemens Mobility GmbH
Publication of EP4344425A1 publication Critical patent/EP4344425A1/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
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B60L5/22—Supporting means for the contact bow
    • B60L5/24—Pantographs
    • 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
    • B60L5/36—Current collectors for power supply lines of electrically-propelled vehicles with means for collecting current simultaneously from more than one conductor, e.g. from more than one phase
    • 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
    • B60L2200/36—Vehicles designed to transport cargo, e.g. trucks

Definitions

  • the invention relates to a pantograph for an electrically driven motor vehicle, in particular an overhead line hybrid truck.
  • the invention also relates to an electrically driven motor vehicle, in particular an overhead line hybrid truck.
  • pantographs cf. also Fig. 1 and possibly below, especially for motor vehicles such.
  • hybrid hybrid trucks for electric highways, trolleybuses or trolleybuses have a galvanic isolation between a traction voltage potential level (diagram: thick single line) and a chassis potential level (diagram: thick and short dashed lines) of the motor vehicle .
  • a traction voltage on-board network of the motor vehicle is electrically isolated from the chassis of the motor vehicle, with the traction voltage on-board network being monitored by the motor vehicle.
  • a further potential level is provided to be controlled, the so-called intermediate potential level (drawing: double line), whereby in the event of a fault, a conclusion is always initially made to the intermediate potential level.
  • a potential layer (English: (potential) layer) is here and in the following always a section, a zone, a part etc. , referred to as an area, understood, which has the same electrical potential on / in the motor vehicle intended or. can own .
  • the traction voltage potential level can be brought into electromechanical sliding contact with the overhead line and carry its electrical voltage.
  • the intermediate potential level lies between the traction onsmisss potential level and the chassis potential level.
  • the chassis potential level is galvanically coupled to a chassis of the motor vehicle. Electrical isolation between the traction voltage potential level and the intermediate potential level is monitored by the pantograph, as well as electrical isolation between the intermediate potential level and the chassis potential level.
  • the pantograph irons out the catenary before catenary voltage can be applied to the chassis and it can become a electrical hazard could occur.
  • the chassis potential level can be coupled with low resistance to the traction voltage potential level, primarily depending on an electrical resistance of the tires of the motor vehicle.
  • the pantograph must be attached to the motor vehicle with many large isolators (static overdetermination, use of special compensating elements) and, on the other hand, be protected against breaking off in the event of a crash by means of crash bars, cf. also Fig. 2 and below .
  • the pantograph according to the invention comprises at least one pantograph main frame and an arm structure that can be moved up and down and has a rocker or a contact piece (contact piece of an overhead line) at its upper end, the pantograph being attachable to a motor vehicle by means of the pantograph main frame and the motor vehicle being able to be supplied with electric current from an overhead line depending on a position of the arm structure, the pantograph main frame having a chassis of the motor vehicle can be galvanically coupled and a two-stage galvanic isolation to a traction voltage potential away from the pantograph main frame in the pantograph itself takes place. Furthermore, security is increased because more parts or Components are on the (safer) chassis potential level and less on the intermediate potential level.
  • the invention enables a significantly simpler mechanical interface to the motor vehicle. This applies e.g. B. for an effort in a construction or a design as well as the cost and a number of the necessary components.
  • An integration of a pantograph on/on/into the motor vehicle as well as maintenance of the interface are simplified considerably. Due to the reduced tolerance requirements, an interface on the part of the motor vehicle can also be used significantly simplify and offers the potential of a comparatively simple and standardized solution.
  • the changed design leads to a weight reduction of the pantograph, which is of great importance for the entire motor vehicle system due to the position of the pantograph and also economically.
  • a weight is decisive in particular for the design of the supporting structure underneath. Accordingly, a reduction in the weight of the pantograph also leads to a further reduction in weight and size of the support structure under the pantograph.
  • the insulation monitoring between the individual potential levels is simplified.
  • the galvanic isolation between a chassis potential level of the pantograph ( in the drawing : thick and short dashed lines ) and another potential level of the pantograph can take place in the pantograph main frame, on the pantograph main frame and/or outside of the pantograph main frame in the pantograph itself . -D. H . in the case of a pantograph mounted on a motor vehicle, the pantograph main frame and the chassis of the motor vehicle are at a common potential level, the chassis potential level of the motor vehicle.
  • the main pantograph frame as a mechanical structure can e.g. B. at least one drive for the arm structure, at least one switch box, at least one arm bearing, at least one other component or unit, etc. exhibit .
  • the pantograph itself includes all the components that are necessary to direct a traction current from an overhead line in the motor vehicle.
  • D. H . the pantograph has z. B. : the arm construction, the main pantograph frame, control boxes, cables, isolators, etc. on .
  • the function of the pantograph is analogous to that of a (comparatively complex) electrical cable, which on the one hand can be or is connected mechanically (pantograph main frame) and electrically (switch box, traction power line) to/in the motor vehicle and which on the other hand is electrically connected to the overhead line. can be ironed on and off romechanically (arm construction).
  • the pantograph is electrically isolated from the chassis of the motor vehicle no longer, as in the prior art, between the pantograph and the chassis, but in the pantograph itself.
  • D. H in the main pantograph frame or between the main pantograph frame and a section of the pantograph directly or indirectly adjoining it.
  • the galvanic isolation shifts away from an original potential level between the actual motor vehicle and the pantograph into the pantograph, with the sections of the chassis potential level of the entire motor vehicle, i.e. the actual motor vehicle with pantograph, becoming 'larger' or 'more' because the potential of the chassis now extends at least into the pantograph main frame.
  • the pantograph preferably has three potential levels: the chassis potential level, a traction voltage potential level (in the drawing: thick single line) and an intermediate potential level set up in between (in the drawing: double line).
  • the intermediate potential level completely galvanically separates the traction voltage potential level from the chassis potential level; i.e. H . there is no isolation point where there is or can be a chassis potential on one side and a traction voltage potential on the other side. In the isolation between the potential levels z.
  • Significantly smaller insulators can be used inside control boxes, as there is less mechanical stress and there is less pollution and less weather influences.
  • the creepage and clearance distances can be reduced.
  • a mechanical control box is , also in the following, e.g. B. a mechanical traction voltage switch box and/or a mechanical control switch box understood, which is electrically isolated from its components of the intermediate potential level and therefore does not include them.
  • the (entire) control box then includes these, with a potential limit running inside the control box.
  • a rocker, a rocker carrier of the arm structure, a sensor and a signal cable to the control switch box, and/or electrical shielding of a traction power cable to the traction voltage switch box and/or to the motor vehicle are on the intermediate potential level of the pantograph.
  • at least one of the switch boxes or one or more components of this or one of the arms or parts of it are on the intermediate potential level.
  • At least one rocker in particular two rockers, the arm construction, Parts of the at least one rocker, in particular at least one contact strip or at least one contact piece, a rocker joint of the arm construction between the upper arm and a rocker carrier or. a rocker or individual parts or assemblies of the rocker (e.g. the springs of the contact pieces), a rocker-side section (off the main frame) of an upper arm of the arm construction, and/or a traction current cable to the traction voltage control box and/or to the motor vehicle on the traction voltage potential level of the pantograph lie .
  • An electrical shielding of the traction current cable is in this case on the intermediate potential level.
  • the arm construction itself can act as an isolator and/or be attached to the pantograph main frame via an electrical isolator. Furthermore, the arm construction, away from at least one of them if necessary. electrically isolated rocker, have an electrical isolator that electrically insulates two areas of the arm construction from one another.
  • An electrical isolator can be provided between the pantograph main frame and the (entire) traction voltage control box.
  • the traction voltage control box is preferably attached to the pantograph main frame via the electrical insulator.
  • an electrical isolator can be provided between the pantograph main frame and the (entire) control switch box.
  • the control switch box is preferably attached to the pantograph main frame via the electrical isolator.
  • an electrical insulator can be provided between at least one component in at least one switch box and the relevant switch box.
  • an electrical insulator is preferably provided between at least one rocker and a relevant sensor.
  • an electrical insulator can be provided between the pantograph main frame and a forearm bearing of the arm construction.
  • An electrical insulator may be provided in a forearm of the arm construction. Furthermore, an electrical insulator can be provided in an upper arm of the arm construction. Furthermore, an electrical isolator or no electrical isolator can be provided between a rocker carrier and a rocker of the arm construction.
  • electrical I insulators on the one hand z. B. Insulators known from energy technology are used, with which bare electrical conductors are fastened, held or guided without there being any significant current flow through the insulator. On the other hand, components specially designed for the pantograph can also be in the form of electrical insulators.
  • the motor vehicle according to the invention comprises an actual motor vehicle and a pantograph, which is attached to the actual motor vehicle by means of its pantograph main frame, the pantograph being designed as a pantograph according to the invention.
  • the pantograph main frame can be fixed directly to a frame, a supporting structure or a chassis of the motor vehicle.
  • a support structure a structure can e.g. B. as a support structure, a so-called baseframe, a so-called tower etc. be trained, which in turn or which in turn is in direct or indirect galvanic connection with the chassis.
  • no galvanic isolation is set up between the pantograph main frame and the actual motor vehicle.
  • D. H no insulators are provided between the pantograph main frame and the frame, the structure or the chassis of the motor vehicle, and of course their compensating elements can also be dispensed with.
  • no crash bar is provided between the pantograph main frame and the actual motor vehicle.
  • a feature can be positive, i. H. present, or negative, i. H. to be absent.
  • a negative feature is not explicitly explained as a feature if it is not important according to the invention that it is absent. i.e. the invention actually made and not constructed by the prior art is to omit this feature.
  • a feature of this specification may not only be applied in a specified way, but also in a different way (isolation, combination, substitution, addition, uniqueness, omission, etc.).
  • this can result in a feature in be interpreted and/or specified in more detail in a patent claim.
  • each feature can be understood as an optional, arbitrary or preferred, i.e. as a non-mandatory, feature. So is a separation of a feature, possibly incl. its periphery, is possible from an exemplary embodiment, this feature then being transferrable to a generalized idea of the invention.
  • the absence of a feature (negative feature) in an embodiment indicates that the feature is optional with respect to the invention.
  • a generic concept for the characteristic can also be read (possibly further hierarchical classification into subgenus, etc.), whereby, e.g. B. taking into account the same effect and / or equivalence, a generalization of the feature is possible.
  • FIGS. 1 and 2 show: FIGS. 1 and 2 in a greatly simplified, schematic representation (FIG. 1) of a pantograph insulation arrangement according to the prior art on a motor vehicle and a perspective view (FIG. 2). attachment of a pantograph main frame for a motor vehicle, and Figs. 3 to 6 highly simplified, schematic representations of four inventive embodiments of insulation arrangements of a variant of a pantograph on a motor vehicle, in particular a trolley hybrid truck for electric highways (highways with corresponding overhead lines) .
  • the invention is based on the prior art (Fig. 1 and 2) based on embodiments of four specific forms of leadership (Fig. 3 to 6) of a variant of a pantograph en insulation arrangement 0 for an electrically drivable motor vehicle 10, in particular an overhead line hybrid truck 10, explained in more detail. Only those spatial sections of an object of the invention which are necessary for an understanding of the invention are shown in the drawing.
  • the fig . 1 schematically shows a pantograph 12 and its insulation arrangement 0 according to the prior art on an electrically drivable motor vehicle 10 embodied as an overhead line hybrid truck 10 .
  • the pantograph 12 includes a pantograph main frame 100, an arm structure 200, and a traction power cable 300 as major components.
  • the main pantograph frame 100 may further include a traction voltage control box 110 and a control control box 120 .
  • the arm construction 200 preferably comprises at least one lower arm 210, at least one upper arm 220 and at least one rocker 232 as main components.
  • compensating elements 102 For this purpose, special, precisely manufactured compensating elements 102 must be installed between the insulators 101 and the motor vehicle 10, which are cost-intensive. At the same time, the compensating elements 102 (measuring) lengthen the duration of an assembly of the pantograph 12 and an integration on the motor vehicle 10 .
  • the insulators 101 are not sufficiently stable to prevent a pantograph 12 from breaking off even in the event of a crash. Additional assemblies are therefore integrated into a construction of the pantograph 12 in order to prevent it from breaking off in the event of a crash (crash bar 103). Due to the design and above all the construction of the isolators 101, salt mist can also lead to a reduction in the isolation resistance and triggering of isolation monitoring. Last but not least, the result is an interface with many individual components that is difficult to coordinate, which leads to increased weight, assembly work and costs overall.
  • a pantograph en- I isolation arrangement 0 is proposed for the motor vehicle 10, in which a potential transition (I solator, I isolation layer, etc.) between the chassis potential layer 1 and the intermediate -Potential position 2 in the pantograph 12 itself or whose construction is shifted into .
  • a pantograph main frame 100 as a mechanical structure with possibly. at least one drive, if necessary. at least one control box and / or if necessary. at least one arm support etc. is shifted according to the invention to a large extent to the chassis potential position 1.
  • a forearm 210 and possibly. Parts of an upper arm 220 of the arm construction 200 are shifted to the chassis potential level 1.
  • Switch boxes 110, 120 for controlling the pantograph 12 can be isolated from the pantograph main frame 100 are preferably left on the intermediate potential level 2.
  • control switch box 120 with components: 24V, pneumatics, etc. can be isolated from the pantograph main frame 100 are preferably left on the intermediate potential level 2.
  • traction voltage switch box 110 with components: fuses, connections, surge arresters, etc. can be isolated from the pantograph main frame 100 are preferably left on the intermediate potential level 2.
  • the mechanical switch boxes 110 , 120 can also be moved to the chassis potential level 1 by the components being installed individually or in groups in an isolated manner and electrically connected to the intermediate potential level 2 .
  • At least one sensor 122 which is mechanically mounted on the traction voltage potential level 3 , is electrically insulated from it and is connected to the intermediate potential level 2 . If necessary, cable connections between the potential levels are formed with a screen, which is on an adjacent potential level 1, 2.
  • a direct assembly of the mechanical pantograph main frame 100 on the actual motor vehicle 10 without the use of isolating components is essential and common to all of the embodiments, so that the pantograph main frame 100 is electrically connected to the chassis potential level 1 .
  • a forearm support 212 , the arms 210 , 220 or sections of the arms 210 , 220 of the arm construction 200 serve as an electrical insulation to the intermediate potential level 2 .
  • individual components may be housed together with their switch boxes 110, 120 isolated from the chassis potential level 1 on the intermediate potential level 2.
  • FIG. 3 to 6 show exemplary embodiments of the invention, showing how the complicated interface (insulators 101, compensating elements 102, crash bar 103, etc.) between the pantograph main frame 100 and the actual motor vehicle 10 can be dispensed with.
  • the pantograph main frame 100 is galvanically coupled to a chassis 11 of the motor vehicle 10 .
  • a necessary galvanic isolation from a traction voltage potential is set up in the pantograph 12 itself.
  • chassis potential level 1 contains: the pantograph main frame 100.
  • Intermediate potential level 2 contains: the traction voltage switch box 110, the control switch box 120, the forearm support and electrical shielding of traction current cable 300 to traction voltage switch box 110 and/or to motor vehicle 10.
  • traction voltage potential level 3 are: the at least one rocker 200, 232 and traction current cable 300.
  • the forearm bearing 200, 212 and a section of the forearm 200, 210 on the main frame side are shifted to that of the intermediate potential level 2.
  • the rocker carrier 200, 230, the rocker joint 200, 225 and a rocker-side section of the upper arm 200, 220 are shifted to the traction voltage potential position 3 compared to the embodiment of FIG. -
  • the arm joint 200, 215 and a section of the upper arm 200, 220 away from the rocker are shifted to the intermediate potential level 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un pantographe (12) pour un véhicule à moteur électrique (10), en particulier un camion hybride à ligne aérienne (10), comprenant au moins un cadre principal de pantographe (100) et une structure de bras (200) qui peut être déplacée vers le haut et vers le bas. Le pantographe (12) peut être fixé au moyen du cadre principal de pantographe (100) à un véhicule à moteur (10), et le véhicule à moteur (10) peut être alimenté en énergie électrique en fonction d'une position de la structure de bras (200), le cadre principal de pantographe (100) pouvant être couplé galvaniquement à un châssis (11) du véhicule à moteur (10), et une isolation galvanique d'un potentiel de tension de traction s'effectuant à distance du cadre principal de pantographe (100) dans le pantographe (12) lui-même.
EP22751383.5A 2021-08-16 2022-07-19 Pantographe pour véhicule à moteur électrique Pending EP4344425A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021208951.8A DE102021208951A1 (de) 2021-08-16 2021-08-16 Pantograf für ein elektrisch antreibbares Kraftfahrzeug
PCT/EP2022/070172 WO2023020769A1 (fr) 2021-08-16 2022-07-19 Pantographe pour véhicule à moteur électrique

Publications (1)

Publication Number Publication Date
EP4344425A1 true EP4344425A1 (fr) 2024-04-03

Family

ID=82839405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22751383.5A Pending EP4344425A1 (fr) 2021-08-16 2022-07-19 Pantographe pour véhicule à moteur électrique

Country Status (4)

Country Link
EP (1) EP4344425A1 (fr)
CN (1) CN117794771A (fr)
DE (1) DE102021208951A1 (fr)
WO (1) WO2023020769A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536843A1 (de) * 1985-10-16 1987-04-16 Dornier System Gmbh Stromabnehmervorrichtung
DE102012213460A1 (de) * 2012-07-31 2014-02-06 Siemens Aktiengesellschaft Nicht schienengebundenes Fahrzeug
DE102017203046A1 (de) * 2017-02-24 2018-08-30 Siemens Aktiengesellschaft Stromabnehmer für mehrpoliges Fahrleitungssystem

Also Published As

Publication number Publication date
WO2023020769A1 (fr) 2023-02-23
DE102021208951A1 (de) 2023-02-16
CN117794771A (zh) 2024-03-29

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