WO2011062501A1 - Dispositif de contact et procédé l'utilisant - Google Patents

Dispositif de contact et procédé l'utilisant Download PDF

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Publication number
WO2011062501A1
WO2011062501A1 PCT/NO2010/000409 NO2010000409W WO2011062501A1 WO 2011062501 A1 WO2011062501 A1 WO 2011062501A1 NO 2010000409 W NO2010000409 W NO 2010000409W WO 2011062501 A1 WO2011062501 A1 WO 2011062501A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
contact
drum
contact device
energy carrier
Prior art date
Application number
PCT/NO2010/000409
Other languages
English (en)
Inventor
Jon Gunnar Aksnes
Original Assignee
Jon Gunnar Aksnes
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 Jon Gunnar Aksnes filed Critical Jon Gunnar Aksnes
Publication of WO2011062501A1 publication Critical patent/WO2011062501A1/fr

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
    • B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
    • B60M7/003—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway for vehicles using stored power (e.g. charging stations)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R41/00—Non-rotary current collectors for maintaining contact between moving and stationary parts of an electric circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to a contact device and a method of using same. More particularly it concerns a contact device to be able to transfer electrical energy from a stationary energy carrier to a vehicle, where the contact device is connected to a portion of the vehicle.
  • the present invention is particularly directed toward vehicles with electric motor, such as a so-called el-car, or vehicles having a hydro generator.
  • el-cars have per the year 2009 only a limited usage. The reasons for this limited use may be many, but a limited range, long charging time, relatively limited engine power and limited comfort is often brought forward as el -car drawbacks.
  • Traditional charging requires that electrical energy is transferred to the vehicle by means of a cable. Thus the vehicle must be stationary while the charging is in progress .
  • induction charging often called “wireless” charging.
  • Wireless charging makes charging possible both when the vehicle is moving and while it is stationary, and may thus be utilised, in such as crossroads where the traffic is often moving slowly, and in such as car parks.
  • a transport system comprising en electric vehicle, where electrical energy is transferred from a stationary energy carrier in a road path.
  • the stationary energy carrier may be formed as conducting plates or a network of conductors placed in the surface of the road.
  • the object of the invention is to remedy or reduce at least one of the disadvantages of the prior art, or at least to procure a useful alternative to the prior art.
  • a contact device to be able to transfer
  • the contact device being connected with a portion of the vehicle, the contact device including:
  • a support body having a first end portion and a second end portion, where the first end portion is attached to a portion of the vehicle;
  • the contact device according to the invention is thus a rotatable contact that in the following also will be termed rolling contact.
  • a rolling contact has the advantage that it may be rotated in two directions and thus transfers
  • the stationary energy carrier may be placed in connection with a surface carrying the vehicle .
  • the surface may be
  • a road typically be a road or a car park.
  • the surface will, for simplicity, be referred to as a road in the following.
  • the support body is pivotally connected to the vehicle so that the spacing between the drum and the energy carrier may be adjusted to thereby be able to bring the contact elements into or out of contact with the energy carrier.
  • the distance is adjusted by means of per se known driving means such as, but not limited to, a motor, a mechanical and/or an electric means.
  • An elongated body that in at least one portion is fastened to the drum may constitute each contact element.
  • the elongated contact element may be loop-shaped.
  • the loop-shape will also be able to produce a resilient effect if the rolling contact is led over an object, such as a stone that might be on the energy carrier.
  • Fixing at least a second portion of the elongated body to the drum may provide the loop-shape.
  • portions of the elongated body may be fastened to the drum.
  • the loop-shape may alternatively or in addition be provided by fastening at least one second portion of the elongated body to a third portion of the body or to a portion of a neighbouring body.
  • the second portion may be fastened by means of one of the fastening methods: permanently fastened, releasably fastened, slidably fastened.
  • the other portion is slidably fastened.
  • a method for transferring electrical energy from a stationary energy carrier to a vehicle the energy being transferred from the energy carrier to the vehicle by means of a contact device including a drum protruding from a portion of the vehicle and arranged to be able to rotate corresponding to the movement of the vehicle relative to the energy carrier, the method further comprising providing the drum with a plurality of contact elements being brought into contact with the stationary energy carrier such that electrical energy is led from the energy carrier to a desired location in the vehicle .
  • an energy carrier for use together with a contact device according to the first aspect of invention, where the energy carrier is constituted by electrically conducting mats placed on a substrate on which a vehicle may be located.
  • the mats are located essentially parallel to and spa.ced such that each of the vehicle contact devices may bear against a mat each.
  • the power supply to the mat may be arranged to be
  • Fig. 1 shows a perspective view of a vehicle located on and being in electrical contact with an energy carrier by means of a connecting device according to the present invention
  • Fig. 2 shows in a larger scale a perspective view of an embodiment of a connection device
  • Fig. 3 shows a principle sketch of an embodiment of a
  • connection device viewed in section from the side;
  • Fig. 4 shows a principle sketch of an alternative
  • Fig. 5 shows a principle sketch of an alternative
  • the reference numeral 1 indicates a contact device, which is arranged to be able to transfer electrical energy from a stationary energy carrier in the form of an electrically conducting mat 3 shown in figure 1.
  • the mat 3 is fixed to a road 4, e.g. by means of suitable fixation means and/or by integrating the mat 3 in the surfacing of the road
  • the contact device 1 is located on the underside of a vehicle
  • the el-car 5 must be provided with two mutually spaced apart contact devices 1 each of which being able to be brought into contact with a corresponding one of two separate electrical mats of opposite polarities.
  • the mats 3 are supplied with power from an already existing street light 7.
  • the current is transformed to the desired voltage by means of a converter 9 known per se known. Alternating current of 50 volt and at 1000Hz may for example be applicable.
  • a control system (not shown) registers that an el-car 5 approaches or is located on the mat 3.
  • the registration may for example be achieved by means of a technology based on radio frequency identification, so- called RFID-technology, arranged in the el-car 5 and in connection with the mat 3.
  • the registration may also be connected with a payment system as is known from automatic toll road collection systems.
  • figure 2 is shown in a larger scale a perspective view of one embodiment of a contact device 1.
  • the contact device 1 includes a supporting body 10 having a first end portion 12 and a second end portion 14.
  • the first end portion 12 is provided with two spaced apart fastening devices 16 that can be fastened to an underside of the vehicle 5. It is to be understood that the fastening- devices 16 are electrically insulated from the vehicle.
  • Two supporting arms 20 extend from a rod-shaped supporting body 18 being pivotally connected to the fastening devices 16.
  • the supporting body 18 may be pivoted relative to the fastening devices 16 by means of per se known means (not shown) .
  • the supporting arms 20 are in the second end portion 14 of the supporting body 10 rotatably connected to a drum 24.
  • the drum 24 is provided with a plurality of elongated, electrically conducting contact elements 26, which in a first end portion 25 are connected to the drum 24 and protruding out from holes (not shown) in the shell of the drum 24.
  • the contact elements may be fastened to the shell of the drum. Current is thus led from the mat 3 via the contact elements 26, drum 24, supporting arms 20, and the fastening devices 16, and from these further through not shown cables to a desired place in the vehicle 5.
  • the desired place may be such as the battery or an electric motor.
  • the drum 24 and the contact elements 26 may selectively be brought into or out of contact with the mat 3.
  • the contact device 1 may thus only be brought into contact with the substrate only when heeded. The wear on the contact device 1 will thus be greatly reduced.
  • each of the contact elements 26 has a helix like shape and, as shown in figure 3 are provided with a hook 27 in a second end portion 25' .
  • Figure 3 only shows four of the great number of contact elements 26 shown in figure 2.
  • the purpose of the hook 27 is that the second end portion 25' shall hook on to a portion of another but nearby contact element 26. Said portion is located between the first end- portion 25 and the second end portion 25' of the contact element 26.
  • the contact elements 26 may be formed with the largest possible diameter being relatively- little influenced by the centrifugal forces acting on the contact elements when the drum 26 is rotated. Thereby the contact elements 26 will to the largest possible extent maintain their shape independently of the rotational speed of the drum 24. At the same time the contact elements 26 may be bent or be resilient inwards toward the drum 24 if a body protrudes from a portion of the mat 3. Such a body may be such as a stone or some other foreign object being on the mat 3.
  • the rotating part of the contact device 1 constituted by the drum 24 with the appurtenant contact elements 26, have thus an essentially constant maximum diameter at the same time as every one of the multiple contact elements 26 is resilient.
  • the electrical contact between the mat 3 and the vehicle 5 may be maintained by some of the contact elements 26 at the same time as others of the contact elements 26 are brought out of electrical contact as a consequence of a possible foreign object being on the mat 3.
  • the resilient property of the contact elements 26 will also be important to provide the largest possible contact surface against the mat 3.
  • the contact elements 26 may be arranged in several ways on the drum 24 to achieve the above, important property.
  • Each of the end portions 25, 25' of every single contact element 26 may for example be fastened to the drum 24. This is shown in figure 4.
  • the contact element 26 will thus be able to form a loop protruding from the drum 24. For clarity only two of a large number of contact elements 26 are shown.
  • a support element 28 may protrude from a top portion of the loop in toward the drum 24 and be fastened to a portion of this or to a portion of the contact element 26.
  • each loop may be provided with more than one or less than the one support element 28 shown.
  • FIG. 5 shows another, alternative embodiment of the contact elements 26.
  • each of the contact elements 26 is a contact
  • the contact element 26 is in its second end portion 25' formed with an angle to form a sufficiently large contact surface with the mat 3.
  • the angular portion is supported by a supporting element 28.
  • the supporting elements 28 shown in figures 4 and 5 may, but not necessarily, be electrically conducting.
  • drum 24 is shown with a core portion 24' being enclosed by an external casing portion 24' ' .
  • annulus 29 Between the core portion 24' and the casing portion 24'' is an annulus 29 arranged to be able to house and keep fastened the end portions of the contact elements 26 that are led through holes in the casing portion 24''.
  • the core portion 24' is put into the casing portion 24'' after the contact elements 26 are placed in the casing portion 24''. Centring of the core portion 24' into the casing portion 24'' may be provided by means of not shown centring elements .
  • the contact elements 26 may be constituted by one or more elongated bodies that are alternately threaded in and out through holes in the casing portion 24''.
  • the present invention provides a contact device which, opposed to hitherto known sliding contacts, will be able to transfer electrical energy from en energy carrier to a vehicle
  • the contact device according to the invention will exhibit a resilient effect in passing over objects being on the surface of the energy carrier, at the same time as the maximum diameter of the contact device is essentially constant and independent of the speed of the vehicle.
  • the rolling motion of the contact device against the energy carrier will be described in detail below.
  • the range of the vehicle may be increased considerably.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Electrotherapy Devices (AREA)
  • Communication Control (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

La présente invention concerne un dispositif de contact (1) et un procédé l'utilisant pour pouvoir transférer une énergie électrique d'un support d'énergie fixe (3) à un véhicule (5), le dispositif de contact étant relié à une partie du véhicule (5), le dispositif de contact (1) comprenant : - un corps de support (10) ayant une première partie d'extrémité (12) et une seconde partie d'extrémité (14), la première partie d'extrémité (12) étant attachée à une partie du véhicule (5) ; - un tambour (24) relié de manière rotative à la seconde partie d'extrémité (14) du corps de support (10) ; et - plusieurs éléments de contact (26) faisant saillie à partir du tambour (24) et agencés de façon à pouvoir être amenés en contact avec le support d'énergie fixe (3) de sorte qu'une énergie électrique puisse être conduite du support d'énergie (3) à un endroit souhaité à l'intérieur du véhicule (5). La présente invention concerne également un support d'énergie (3) destiné à être utilisé conjointement au dispositif de contact (1).
PCT/NO2010/000409 2009-11-19 2010-11-11 Dispositif de contact et procédé l'utilisant WO2011062501A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20093381A NO330466B1 (no) 2009-11-19 2009-11-19 Kontaktanordning og framgangsmate ved bruk av samme
NO20093381 2009-11-19

Publications (1)

Publication Number Publication Date
WO2011062501A1 true WO2011062501A1 (fr) 2011-05-26

Family

ID=43920405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2010/000409 WO2011062501A1 (fr) 2009-11-19 2010-11-11 Dispositif de contact et procédé l'utilisant

Country Status (2)

Country Link
NO (1) NO330466B1 (fr)
WO (1) WO2011062501A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476947A (en) * 1981-06-26 1984-10-16 Chevron Research Company Electric car and roadway system
FR2696985A1 (fr) * 1992-08-25 1994-04-22 Goulet Michael Procédé d'alimentation en courant électrique de véhicules électriques et dispositif de mise en Óoeuvre dudit procédé.
WO2000046065A1 (fr) * 1999-02-02 2000-08-10 John Henry Talbot Systeme de transport
DE10216855A1 (de) * 2002-04-16 2003-11-06 Siemens Ag Anordnung zur Stromübertragung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476947A (en) * 1981-06-26 1984-10-16 Chevron Research Company Electric car and roadway system
FR2696985A1 (fr) * 1992-08-25 1994-04-22 Goulet Michael Procédé d'alimentation en courant électrique de véhicules électriques et dispositif de mise en Óoeuvre dudit procédé.
WO2000046065A1 (fr) * 1999-02-02 2000-08-10 John Henry Talbot Systeme de transport
DE10216855A1 (de) * 2002-04-16 2003-11-06 Siemens Ag Anordnung zur Stromübertragung

Also Published As

Publication number Publication date
NO20093381A1 (no) 2011-04-18
NO330466B1 (no) 2011-04-18

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