EP4499438A1 - Stromabnehmer und mit einem solchen ausgestattetes strassenfahrzeug - Google Patents
Stromabnehmer und mit einem solchen ausgestattetes strassenfahrzeugInfo
- Publication number
- EP4499438A1 EP4499438A1 EP23723862.1A EP23723862A EP4499438A1 EP 4499438 A1 EP4499438 A1 EP 4499438A1 EP 23723862 A EP23723862 A EP 23723862A EP 4499438 A1 EP4499438 A1 EP 4499438A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- current collector
- spring
- pole
- exactly
- 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.)
- Withdrawn
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
- B60L5/26—Half pantographs, e.g. using counter rocking beams
-
- 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
- B60L5/04—Current collectors for power supply lines of electrically-propelled vehicles using rollers or sliding shoes in contact with trolley wire
- B60L5/10—Devices preventing the collector from jumping off
-
- 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
- B60L9/00—Electric propulsion with power supply external to the vehicle
-
- 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
- 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 according to the preamble of claim 1 and a road vehicle according to claim 7.
- Such a vehicle includes a current collector for feeding in traction energy from a two-pole overhead line system with a contact wire on each contact pole.
- the current collector has a support rod that can be directed like a pantograph, which is supported in an articulated manner on a rod base on the vehicle side and carries a rocker arrangement on the trolley wire side.
- the support linkage includes a forearm and two upper arms, which are pivotally connected to the forearm in an independently rotatable manner.
- the rocker arrangement has a rocker frame for each of the two contact poles.
- Each rocker frame is articulated, rotatably connected to one of the two upper arms about a vehicle transverse axis and carries two contact strips arranged one behind the other in the vehicle's longitudinal axis and parallel to the vehicle's longitudinal axis for electrical contacting of the contact wire assigned to the contact pole.
- Such current collectors have a high mass, which negatively affects their vibration behavior, and a complex structure, which is associated with an increased risk of errors in operation, production and assembly.
- the invention is therefore based on the object of providing a pantograph of the type mentioned at the outset with a simpler structure and improved contact behavior with the overhead line system.
- the object is achieved according to the invention by a current collector of the type mentioned at the outset with the features specified in the characterizing part of patent claim 1.
- a current collector for an electrically or hybrid-electrically driven road vehicle is designed and provided for feeding in traction energy from an electrical overhead line system.
- the road vehicle can, for example, be designed as a heavy commercial vehicle, such as a truck or a bus.
- the overhead line system is two-pole and has a contact wire for each contact pole.
- the contact wires are arranged approximately parallel to one another and at the same height above an electrified lane of a roadway used by the road vehicle.
- a feed section of the overhead line system is supplied with electrical energy via a substation, which is made available to road vehicles via the two contact wires.
- the pantograph includes a support rod that can be directed.
- the support linkage can, for example, be designed like a pantograph and be directed by a pneumatic lifting drive.
- each contact pole carries at least one contact strip for electrical contacting of the contact wire assigned to the respective contact pole.
- the grinding strips are aligned horizontally and transversely to a longitudinal axis of the vehicle and can consist of an elongated grinding piece made of graphite, which is fastened in a grinding piece carrier. At the outside ends of the grinding piece carriers, downwardly curved casserole horns can be arranged.
- the support linkage has exactly one forearm connected to the base joint, exactly one upper arm connected to the forearm via a knee joint and exactly one cross member connected to the upper arm via a support joint.
- Each of the grinding strips is resiliently mounted on the cross member via spring elements.
- two contact poles can be located parallel to each other on the cross member.
- the grinding strips extend in the transverse direction of the vehicle and are arranged one behind the other in the longitudinal direction of the vehicle.
- a further mass reduction of the current collector is achieved by the cross member being supported by only one upper arm, instead of the previously known two upper arms, each of which carried a rocker assigned to the respective contact pole.
- the moving mass of the current collector is reduced, so that contact force fluctuations caused by vertical vibrations can be compensated for more quickly, which improves the quality of the contact force of the contact strips on the contact wires and reduces wear on the contact strips.
- the smaller number of current collector components simplifies its construction, which reduces the susceptibility to errors in its manufacture and operation.
- each contact pole is assigned exactly one contact strip. This makes it possible to further save on the moving mass of the current collector by eliminating the need for two contact strips for each contact pole and for a rocker frame supporting them. This not only further improves the vibration dynamics of the current collector, but also simplifies the complexity of its structure.
- grinding strips can preferably be used, the grinding pieces of which have a width of at least 6 cm, measured in the longitudinal direction of the vehicle.
- the spring elements are designed as a leaf spring and/or as a coil spring. Due to their high availability of a wide variety of spring characteristics and their robustness, leaf and coil springs are particularly suitable for public applications Street space. For each contact strip or pair of contact strips of a contact pole, two spring elements can be arranged at opposite ends of the contact strips. Either only leaf springs or only coil springs or a combination of leaf and coil springs can be used.
- the restoring force when the spring elements deflect can be adjusted by selecting a spring constant, for example, so that it increases linearly. A minimum initial value for the restoring force can be specified by pretensioning the spring elements.
- stop elements for example with a shock-absorbing effect, can limit the deflection travel of the spring elements and thus the deflection of the grinding strips relative to the cross member.
- the spring constant of the spring elements is chosen so that both contact strip vibrations caused by vehicle vibrations and height differences between the contact strips of different contact poles due to different contact wire heights are compensated for in order to achieve a high quality of contact between the contact strips and contact wires.
- a spring characteristic of the spring elements has a first spring constant on a first deflection path and a second spring constant, which is larger than the first spring constant, on an adjoining second deflection path.
- the second spring deflection is intended for an overload situation in which damage to the current collector - for example due to the grinding strips hitting the cross member - can be cushioned by a stronger increasing restoring force.
- a spring element designed as a constant force spring can provide this effect.
- the spring elements connected in cascade in this way form a passive and robust spring assembly with a self-centering spring characteristic.
- the spring assembly compensates for variations caused by both vibrational movements of the Vehicle in the higher frequency variation range as well as height differences of the contact wires in the low frequency variation range.
- the individual spring elements can be replaced separately and allow specific characteristic adjustment of the individual spring stages.
- the spring elements electrically insulate the loop strips from the cross member.
- the bearing points of the spring elements on the grinding strips and/or on the cross member or the spring elements themselves can be designed to be electrically insulating. In both cases, the spring elements can form a significant part of the electrical insulation path between the high voltage level of the contact wires and the potential of the vehicle frame.
- the linkage base of the current collector can be attached to the road vehicle via electrical support insulators.
- a mechanical bridge member is mounted on the cross member in such a way that a contact wire is prevented from sinking between contact strips of different contact poles.
- the bridge member can, for example, be designed as an insulating bracket and be arranged and shaped in such a way that a contact wire that slips from a contact strip in the correct center of the vehicle cannot penetrate into a space between adjacent contact strips below the contact strips. This avoids threading a contact wire under a contact strip and resulting damage to the pantograph or the overhead line system.
- the invention further relates to an electrically or hybrid-electrically driven road vehicle, comprising a pantograph according to one of claims 1 to 6.
- FIG. 1 shows a front view of a first exemplary embodiment of a current collector according to the invention
- FIG. 2 shows a side view of a second exemplary embodiment of a current collector according to the invention
- FIG. 3 shows the current collector from FIG. 1 with a spring-loaded loop strip
- FIG. 4 shows a front view of a third exemplary embodiment of a current collector according to the invention
- FIG. 6 schematically illustrates a second characteristic curve of spring elements of a current collector according to the invention.
- a non-track-bound, electrically or hybrid-electrically driven road vehicle such as a heavy-duty vehicle, only a section of a vehicle frame or another vehicle part supported directly or indirectly on it is indicated.
- the vehicle 1 has a current collector 2.
- the overhead line system is designed to be two-pole and has contact wires 3 and 4 designed as forward and return conductors for each contact pole.
- the current collector 2 has a support rod 5 that can be directed in the vehicle vertical direction Z and is designed as a pantograph with a single lower arm 6 and a single upper arm 7 .
- the support linkage 5 is supported with its forearm 6 via a base joint 8 on a linkage base 9 that is firmly connected to the road vehicle 1.
- the upper arm 7 is connected to the forearm 6 via a knee joint 10.
- the upper arm 7 is in turn connected to a cross member 11 via a carrier joint 12.
- Base joint 8, knee joint 10 and support joint 12 are designed as rotary Joints are formed, the joint axes of which are aligned parallel to a vehicle transverse direction Y of the road vehicle 1.
- a coupling rod 13 is connected to the linkage base 9 and the upper arm 7 in an articulated manner in such a way that when the forearm 6 is raised by a lifting device (not shown), for example an air bellows, the upper arm 7 is also forcibly raised, with one through the upper arm 7 and forearm
- a guide rod 14 is articulated to the forearm 6 and the cross member 12 in such a way that when the support rod 5 is erected, the cross member 12 is guided in such a way that spring-mounted loops 15 on it are in contact with the contact wires 3 or 4 stay facing.
- Each contact pole has at least one, preferably exactly one, contact strip 15 on the cross member 11 via spring elements 16 or 17 spring-mounted. Via the loop strips 15, the current collector 2 contacts the contact wires 3 and 4 assigned to the respective contact pole, whereby an electrical loop contact is formed for energy transmission while the road vehicle 1 is traveling.
- the grinding strips 15 are aligned horizontally and transversely to a vehicle longitudinal axis X of the road vehicle 1. At their ends on the outside of the vehicle, casing horns 18 which are bent downwards are formed on the grinding strips 15.
- the upper arm is
- the upper arm 7 is V-shaped and has at its end on the wire side a crown tube 19 which extends in the vehicle transverse direction Y and in which two support joints 12 are integrated for connecting the cross member 11.
- the spring elements are designed as leaf springs 16, in the exemplary embodiment according to FIG. 2 as coil springs 17. It can ever Wear strip 15, two spring elements 16 or 17 can be arranged at opposite ends of the loop strips 15. Either only leaf springs 16 or only coil springs can be used
- leaf springs 16 and coil springs 17 can be used in combination.
- the spring constant K of the spring elements 16 or 17 is chosen so that both contact strip vibrations caused by vehicle vibrations and height differences between different contact wire heights of the contact wires 3 and 4 are compensated for in order to achieve a high quality of contact between contact strips 15 and contact wires 3 and 4.
- the spring characteristic KL of the spring elements 16 or 17 have a first spring constant K1 on a first deflection travel S1 and a second spring constant K2 that is larger than the first spring constant K1 on an adjoining second deflection travel S2.
- the second deflection travel S2 is intended for an overload case, in which damage to the current collector 2 - for example by hitting the grinding strips 15 on the cross member 11 - can be cushioned by a stronger increasing restoring force F.
- the spring elements 16 or 17 electrically insulate the grinding strips 15 against the cross member 11, for example by the bearing points of the spring elements 16 or 17 on the Schlei strips 15 and / or on the cross member 11 or the spring elements 16 or. 17 itself can be designed to be electrically insulating.
- a mechanical bridge member 20 is mounted on the cross member 11 in such a way that a contact wire 3 or 4 can sink between Wearing strips 15 different contact poles is prevented.
- the bridge member 20 can, for example, be designed as an insulating bracket and arranged and shaped in such a way that a contact wire 3 or 4 slipping from a contact strip 15 in the correct center of the vehicle does not penetrate into a gap ZR between adjacent contact strips 15 below the contact strips 15 can . This avoids threading a contact wire 3 or 4 under a contact strip 15 and resulting damage to the pantograph 2 or the overhead line system.
- the core of the invention is the achieved reduction in the moving mass of a current collector according to the invention, whereby fluctuating contact forces can be compensated for more quickly.
- the improved quality of the pressure force also reduces wear on the grinding strips 15.
- the reduction in components also reduces errors in the production, assembly and operation of a current collector 2 according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022205322.2A DE102022205322A1 (de) | 2022-05-27 | 2022-05-27 | Stromabnehmer und mit einem solchen ausgestattetes Straßenfahrzeug |
| PCT/EP2023/061249 WO2023227325A1 (de) | 2022-05-27 | 2023-04-28 | Stromabnehmer und mit einem solchen ausgestattetes strassenfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4499438A1 true EP4499438A1 (de) | 2025-02-05 |
Family
ID=86382906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23723862.1A Withdrawn EP4499438A1 (de) | 2022-05-27 | 2023-04-28 | Stromabnehmer und mit einem solchen ausgestattetes strassenfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4499438A1 (de) |
| CN (1) | CN119301008A (de) |
| DE (1) | DE102022205322A1 (de) |
| WO (1) | WO2023227325A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024202987A1 (de) | 2024-03-28 | 2025-10-02 | Siemens Mobility GmbH | Stromabnehmer sowie Straßenfahrzeug mit einem solchen Stromabnehmer |
| DE102024204679A1 (de) | 2024-05-21 | 2025-11-27 | Siemens Mobility GmbH | Stromabnehmer sowie Straßenfahrzeug mit einem solchen Stromabnehmer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066906A (ja) * | 1992-06-18 | 1994-01-14 | Kawasaki Heavy Ind Ltd | 集電装置 |
| DE19541600C1 (de) * | 1995-11-08 | 1997-07-17 | Deutsche Forsch Luft Raumfahrt | Stromabnehmer für die Energieübertragung zwischen einem Fahrdraht und einem Triebwagen |
| DE10219945A1 (de) * | 2002-04-26 | 2003-11-27 | Schunk Bahntechnik Gmbh Berghe | Wippe für Stromabnehmer |
| CN1273322C (zh) * | 2003-08-12 | 2006-09-06 | 上海交通大学 | 双线受电式无轨电车集电弓 |
| DE102017203046A1 (de) | 2017-02-24 | 2018-08-30 | Siemens Aktiengesellschaft | Stromabnehmer für mehrpoliges Fahrleitungssystem |
| DE102019214959A1 (de) * | 2019-09-30 | 2021-04-01 | Siemens Mobility GmbH | Nicht spurgebundenes Fahrzeug mit einem Stromabnehmer |
| DE102021207821A1 (de) | 2021-07-21 | 2023-01-26 | Siemens Mobility GmbH | Stromabnehmer für ein elektrisch oder hybridelektrisch angetriebenes Straßenfahrzeug |
-
2022
- 2022-05-27 DE DE102022205322.2A patent/DE102022205322A1/de not_active Withdrawn
-
2023
- 2023-04-28 EP EP23723862.1A patent/EP4499438A1/de not_active Withdrawn
- 2023-04-28 CN CN202380042656.7A patent/CN119301008A/zh active Pending
- 2023-04-28 WO PCT/EP2023/061249 patent/WO2023227325A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN119301008A (zh) | 2025-01-10 |
| DE102022205322A1 (de) | 2023-11-30 |
| WO2023227325A1 (de) | 2023-11-30 |
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