US20190270025A1 - Model car racing track - Google Patents

Model car racing track Download PDF

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Publication number
US20190270025A1
US20190270025A1 US16/349,136 US201716349136A US2019270025A1 US 20190270025 A1 US20190270025 A1 US 20190270025A1 US 201716349136 A US201716349136 A US 201716349136A US 2019270025 A1 US2019270025 A1 US 2019270025A1
Authority
US
United States
Prior art keywords
lane
model car
track
bus
racing track
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.)
Abandoned
Application number
US16/349,136
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English (en)
Inventor
Christian Koker
Christian Rathge
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.)
Carrera Toys GmbH
Original Assignee
Stadlbauer Marketing und Vertrieb 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 Stadlbauer Marketing und Vertrieb GmbH filed Critical Stadlbauer Marketing und Vertrieb GmbH
Assigned to STADLBAUER MARKETING + VERTRIEB GMBH reassignment STADLBAUER MARKETING + VERTRIEB GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Koker, Christian, RATHGE, CHRISTIAN
Publication of US20190270025A1 publication Critical patent/US20190270025A1/en
Assigned to CARRERA TOYS GMBH reassignment CARRERA TOYS GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: STADLBAUER MARKETING + VERTRIEB GMBH
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/12—Electric current supply to toy vehicles through the track
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/16—Control of vehicle drives by interaction between vehicle and track; Control of track elements by vehicles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H30/00—Remote-control arrangements specially adapted for toys, e.g. for toy vehicles
    • A63H30/02—Electrical arrangements
    • A63H30/04—Electrical arrangements using wireless transmission
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/08—Highways or trackways for toys; Propulsion by special interaction between vehicle and track with mechanical means for guiding or steering

Definitions

  • the invention relates to a model car racing track. More specifically, the invention relates to a model car racing track having a transformer arrangement for contact-free energy transmission from the track to a model car, where the track bus bar represents the primary element of the transformer arrangement, and the model car represents the secondary element for coupling in the electromagnet field generated by the primary element.
  • a model car racing track also known as a slot-car track or slot track, is a technical apparatus with which electrically-driven model cars can be driven in a guided manner along lanes, wherein a guide keel on the model car engages in a slot on the track.
  • the model car racing track comprises a track which can for example be assembled from a plurality of track sections which can be plugged together.
  • the track can have two lanes which in each case possess a slot for guiding a model car and two bus bars for the current supply of the electrical drive of the model vehicles which can be moved along the respective lane.
  • Current collectors on the respective model cars are thereby in contact with the respective bus bar in order to guarantee a transmission of electrical energy.
  • the speed and braking behavior of the respective model car can in each case be controlled using a hand-held controller.
  • the invention is based on the object of showing a way how an interruption-free supply with electrical energy of model cars of such a model car racing track can be guaranteed.
  • a model car racing track having at least one model car guided along a lane and a track defining the lane, wherein the track has at least one bus bar extending in the direction of the lane, including a transformer arrangement with a primary element and a secondary element for contact-free and interruption-free transmission of energy and control signals from the track to the model car, wherein the bus bar is arranged on a surface of the track and is the primary element of the transformer arrangement extending in the direction of the lane, and the model car comprises the secondary element of the transformer arrangement for coupling in the electromagnetic field generated by the primary element, wherein the secondary element has a winding or a plurality of windings, wherein the winding or plurality of windings defines a screw vector (S) extending horizontally in a width direction Y which extends substantially at right angles to the direction of the lane.
  • S screw vector
  • a rotation vector (R) of the electromagnetic field generated by the primary element points substantially in the direction of the lane.
  • the secondary element has a main direction of extension (H) which is substantially at right angles to the direction of the lane.
  • At least one second lane with at least one second bus bar is provided, along which a second model car is guided along the lane, wherein an electrical current with a first frequency is applied to the first bus bar and a second electrical current with a second frequency is applied to the second bus bar, wherein the first frequency is different from the second frequency.
  • the second frequency is preferably at least one and a half times the first frequency, for example, the first frequency may be 400 kHz and the second frequency may be 600 kHz.
  • the at least one lane may have two parallel bus bars extending in the direction of the lane, where the two bus bars of a lane are wired electrically in parallel or wired electrically in series.
  • FIG. 1 shows a schematic sectional representation of a preferred embodiment of a model car racing track according to the invention
  • FIG. 2 shows a schematic representation of a transformer arrangement which is used in the model car racing track shown in FIG. 1 ;
  • FIG. 3 shows a view from above of the first substrate element shown in FIG. 2 ;
  • FIG. 4 shows a view from below of the second substrate element shown in FIG. 2 ;
  • FIG. 5 shows an operating scenario of the model car racing track shown in FIG. 1 ;
  • FIG. 6 shows a first wiring variant of bus bars of a track with two lanes
  • FIG. 7 shows a second wiring variant of bus bars of a track with two lanes.
  • FIG. 8 shows a further exemplary embodiment of a model car racing track according to the invention, with a track provided with a bus bar for each lane of the track, which has several lanes.
  • FIGS. 1-8 of the drawings in which like numerals refer to like features of the invention.
  • a transformer arrangement comprising a primary element and a secondary element for contact-free energy transmission from the track to the model car
  • the bus bar is the primary element of the transformer arrangement
  • the model car comprises the secondary element of the transformer arrangement for coupling in the electromagnetic field generated by the primary element.
  • the model car racing track has an air-core transformer for contact-free energy transmission, wherein the primary element performs the function of a primary coil or winding and the secondary element performs the function of a secondary coil or winding.
  • control signals can also be transmitted with the transformer arrangement, for example in order to accelerate or brake the model car, for example in that these control signals are modulated with a higher frequency and filtered out again on the model car side.
  • a rotation vector of the electromagnetic field generated by the primary element points substantially in the direction of the lane.
  • the bus bar configured as a conductor extended in the direction of the lane, forms a magnetic field, the field lines of which have the form of closed, concentric circles or ellipses around the bus bar.
  • a rotation vector of the magnetic field which stands perpendicular to the concentric circles, points in the direction of the lane. “Substantially” is thereby understood to mean within usual manufacturing tolerances.
  • an unmodified track with a particularly simple structure can be used in which the bus bars are configured as conductors extending in the direction of travel or lane direction. Tracks with integrated coil elements, which are complex to manufacture, are not necessary.
  • the secondary element has a main direction of extension which is substantially at right angles to the direction of the lane.
  • the secondary element has a winding or a plurality of windings, wherein the winding or plurality of windings defines a screw vector which extends substantially at right angles to the direction of the lane.
  • the plurality of windings defines a main direction of extension of the secondary element in the helical direction of the secondary element.
  • At least one second lane with at least one second bus bar is provided, along which a second model car is guided along the lane, wherein an electrical current with a first frequency is applied to the first bus bar and a second electrical current with a second frequency is applied to the second bus bar, wherein the first frequency is different from the second frequency.
  • the second frequency is at least one and a half times the first frequency. In this way, a mutual influence through the inductive coupling-in of electrical energy can be reduced particularly effectively.
  • the first frequency is 400 kHz and the second frequency 600 kHz.
  • the at least one track has two parallel bus bars extending in the direction of the lane.
  • the bus bars are configured as conductors extending in the direction of travel or lane direction.
  • the two bus bars are wired electrically in parallel.
  • a doubled conductor cross section is made available, so that a doubled current strength can be applied to the bus bar elements.
  • the two bus bar elements are wired electrically in series.
  • the two bus bar elements form a double loop, which further improves the efficiency of the energy transmission.
  • a model car racing track 2 also known as a slot-car track or slot track, is represented in FIG. 1 .
  • the model car racing track 2 has a track 4 made up of a plurality of track sections which can be plugged together with, in the present exemplary embodiment, two lanes 6 a , 6 b , each for a model car 10 . Only one model car 10 is illustrated in FIG. 1 .
  • the track 4 has a recess 8 a , 8 b assigned to each lane 6 a , 6 b which is arranged centrally relative to the lane and in which a guide element 30 , for example a guide pin or guide keel of the model car 10 , engages and so effects a guidance of the model car 10 along the respective lane, in this case the lane 6 a.
  • a guide element 30 for example a guide pin or guide keel of the model car 10
  • the track 4 has in each case two bus bars 14 a , 14 b , 14 c , 14 d arranged on each side of the respective recess 8 a , 8 b which are assigned to the first lane 6 a or the second lane 6 b .
  • the first and second bus bars 14 a , 14 b , 14 c , 14 d have a u-formed profile in cross section and are pressed into further recesses in the track 4 .
  • the first and second bus bars 14 a , 14 b , 14 c , 14 d can also have a different profile in cross section.
  • the bus bars 14 a , 14 b , 14 c , 14 d are in each case formed in a single piece and of the same material. Furthermore, the bus bars 14 a , 14 b , 14 c , 14 d are manufactured of a magnetic material. In this way, the model car 10 can be held in the lane 6 a through magnetic force by means of a permanent magnet (not shown) which interacts with the bus bars 14 a , 14 b.
  • the two bus bar pairs 14 a , 14 b or 14 c , 14 d form a primary element 18 of a transformer arrangement 16 for contact-free energy transmission to the model car 10 .
  • the transformer arrangement 16 for contact-free energy transmission to the model car 10 also includes a secondary element 20 assigned to the model car 10 for coupling in the electromagnetic field generated by the primary element 18 .
  • the secondary element 20 is a coil arrangement 22 .
  • control signals can also be transmitted with the transformer arrangement 16 , for example in order to accelerate or brake the model car 10 , for example in that these control signals are modulated with a higher frequency and filtered out again on the model car side.
  • FIG. 2 which for reasons of simplicity only shows the first lane 6 a of the two lanes 6 a , 6 b .
  • the following explanations also apply analogously to the second lane 6 b with the recess 8 b and the bus bars 14 c and 14 d.
  • FIG. 2 shows that both the recess 8 a and also the two bus bars 14 a , 14 b each have a main direction of extension H pointing along the lane 6 a in the direction of travel, in which direction its dimensions are significantly greater than in the direction of the other directions of extension.
  • FIG. 2 shows that the coil arrangement 22 has a substrate 12 .
  • the substrate 12 has a first substrate element 24 a and a second substrate element 24 b as well as a ferrite core 26 arranged between the first substrate element 24 a and the second substrate element 24 b.
  • the first substrate element 24 a and the second substrate element 24 b are in each case a circuit board.
  • the circuit boards have a basic shape extending in a planar manner, in the present exemplary embodiment a rectangular basic shape, with in each case an upper side and an underside opposite the upper side. They consist in each case of an electrically insulating material and conductor paths arranged thereon. Fiber-reinforced plastic is for example commonly used as insulating material.
  • the conductor paths are for example etched from a thin coating of copper applied previously to the insulating material.
  • conductor paths on the upper side of the first substrate element 24 a form a plurality of first coil portions 28 a
  • further conductor paths on the underside of the second substrate element 24 b form a plurality of second coil portions 28 b
  • one of the first coil portions 28 a and one of the second coil portions 28 b together form a coil winding of the coil arrangement 20 .
  • connecting lines are provided which extend through the first substrate element 24 a and the second substrate element 24 b and connect the respective first coil portions 28 a with the respective second coil portion 28 b in an electrically conductive manner.
  • the coil portions 28 a , 28 b form three coil windings. However, five to eight coil windings could also be provided.
  • FIG. 2 shows that the ferrite core 26 is arranged with its upper side on an underside of the first substrate element 24 a and the underside of the ferrite core 26 is arranged on an upper side of the second substrate element 24 b.
  • the ferrite core 26 is a component made of ferrite which, as core of the coil arrangement 22 , increases its inductance or guides the magnetic field.
  • Ferrites are understood to be materials comprising poorly electrically conductive or non-conductive ferrimagnetic ceramic materials made from the iron oxide haematite (Fe 2 O 3 ), magnetite (Fe 3 O 4 ) and/or from further metal oxides. Depending on the composition, ferrites are hard magnetic or soft magnetic.
  • the coil windings formed by the respective first coil portions 28 a and second coil portions 28 b have a screw vector S which, as illustrated in FIG. 2 , lies substantially within the plane of the substrate 12 and describes the helical configuration of the coil windings of the coil arrangement 22 .
  • screw vector S is arranged substantially at right angles to the main direction of extension H of the bus bars 14 a , 14 b.
  • FIG. 2 shows that the substrate 12 has a first direction of extension I, a second direction of extension II and a third direction of extension III.
  • the first direction of extension I extends in a height direction Z between the first substrate element 24 a and the second substrate element 24 b .
  • the second direction of extension II extends at right angles to the first direction of extension I in the direction of the screw vector S or in a width direction Y.
  • the third direction of extension III extends at right angles to the first direction of extension I and to the second direction of extension II in the direction of the main direction of extension H or in a depth direction X.
  • the substrate 12 , the first substrate element 24 a , the second substrate element 24 b and the ferrite core 26 in each case have significantly greater dimensions in the direction of the second direction of extension II and the third direction of extension III than in the direction of the first direction of extension I. In other words, they in each case have a rectangular, in particular plate-formed basic shape.
  • FIGS. 3 and 4 show that the first coil portions 28 a and the second coil portions 28 b have an elongated form, i.e., their respective dimensions in the direction of the third direction of extension III are greater than in the direction of the second direction of extension II. Furthermore, the first coil portions 28 a and the second coil portions 28 b extend at an angle to the second direction of extension II which is unequal to a right angle. In the present exemplary embodiment, the first coil portions 28 a and the second coil portions 28 b extend at an angle of 75° to 85° or 95° to 110° to the second direction of extension II.
  • a coil arrangement 22 is provided which is particularly compact and takes up little construction space. Furthermore, the manufacture of the coil arrangement 22 is simplified in each case through the planar formation of the first coil portions 28 a and second coil portion 28 b on the upper or underside of the substrate 12 , since planar or thick film technology can be used for this purpose.
  • an alternating current with a frequency of 400 kHz flows through the bus bar 14 a .
  • a magnetic field M is formed around the bus bars 14 a with concentric field lines extending around the bus bar 14 a .
  • the course of the field lines can be described by a rotation vector R standing perpendicular to the plane which is described by the field lines.
  • the field lines pass through the secondary element 20 or the coil arrangement 22 and generate, through induction, an electrical voltage in the secondary element 20 .
  • the electrical voltage induced in the secondary element 20 can then be used to supply an electrical drive of the model car 10 , so that the model car 10 can move in the direction of travel F predetermined by the main direction of extension H of the recess 8 a or the bus bar 14 a .
  • the direction of travel F and the rotation vector R are oriented substantially at right angles to one another. “Substantially” is thereby understood to mean within usual manufacturing tolerances.
  • a regulation of the speed of the model car 10 can thereby be achieved through a change in the current strength of the electrical current which flows through the bus bars 14 a , 14 b.
  • the second lane 6 b for a second model car (not shown) which has the same structure as the first lane 6 a .
  • the bus bars 14 c , 14 d of the second lane 6 b are flowed through by an electrical current with a frequency which is at least one and a half times as high as the first frequency.
  • the second frequency is 600 kHz.
  • FIGS. 6 and 7 show by way of example wiring variants of the two bus bar pairs 14 a , 14 b or 14 c , 14 d with reference to the first lane 6 a of the two lanes 6 a , 6 b of the track 4 .
  • FIG. 6 shows a first wiring variant in which the two bus bars 14 a , 14 b of the first lane 6 a are wired electrically in parallel. This allows use to be made of the doubled conductor cross section of the two bus bars 14 a , 14 b , so that a doubling of the current strength applied to the bus bars 14 a , 14 b becomes possible.
  • FIG. 7 shows a second wiring variant in which the two bus bars 14 a , 14 b of the first lane 6 a are wired electrically in series.
  • the two bus bars 14 a , 14 b form a double conductor loop, so that the efficiency of the energy transmission is improved.
  • FIG. 8 Reference is now made to FIG. 8 .
  • bus bars 14 a ′, 14 b ′ The structure of the bus bars 14 a ′, 14 b ′ according to this exemplary embodiment will be explained with reference to the bus bar 14 b ′ assigned to the second lane 6 b.
  • the bus bar 14 b ′ has a u-formed profile with a groove base 32 and two flanges 34 extending from the groove base 32 which in the present exemplary embodiment extend parallel. Extending from each of the flanges 34 is a tongue 36 which extends within the plane of the surface of the track 4 ′.
  • the bus bars 14 a ′, 14 b ′ are in each case formed in a single piece and of the same material. Furthermore, according to this exemplary embodiment the bus bars 14 a ′, 14 b ′ are manufactured of a magnetic material. In this way, here too the model car 10 can be held in the lane 6 a through magnetic force by means of a permanent magnet (not shown) which interacts with the bus bar 14 a ′. In particular, the two tongues 36 provide an enlarged surface on which the magnetic force can act, so that a magnet of reduced size can be used in the model car 10 which takes up less construction space.
  • the two bus bars 14 a ′ 14 b ′ are fitted into the respective recesses 8 a , 8 b such that the u-formed bus bars 14 a ′, 14 b ′ are open in an upwards direction, so that the guide element 30 , for example a pin of the model car 10 , can engage in the u-formed bus bar 14 a ′ in order in this way to guide the model car 10 along the lane 6 a defined by the recess 8 a .
  • this track 4 ′ has a particularly simple structure with only one bus bar 14 a ′, 14 b ′, in the present exemplary embodiment arranged centrally, for each of the lanes 6 a , 6 b , wherein the bus bars 14 a ′, 14 b ′ in each case have a double function, namely as bus bar and as guide groove for the model car.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Toys (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
US16/349,136 2016-11-22 2017-11-21 Model car racing track Abandoned US20190270025A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202016007185.9 2016-11-22
DE202016007185.9U DE202016007185U1 (de) 2016-11-22 2016-11-22 Modellautorennbahn
PCT/EP2017/001362 WO2018095568A1 (de) 2016-11-22 2017-11-21 Modellautorennbahn

Publications (1)

Publication Number Publication Date
US20190270025A1 true US20190270025A1 (en) 2019-09-05

Family

ID=57583788

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/349,136 Abandoned US20190270025A1 (en) 2016-11-22 2017-11-21 Model car racing track

Country Status (5)

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US (1) US20190270025A1 (zh)
EP (1) EP3544707B1 (zh)
CN (1) CN109982762B (zh)
DE (1) DE202016007185U1 (zh)
WO (1) WO2018095568A1 (zh)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520889A (en) * 1981-03-02 1985-06-04 Shinko Electric Co., Ltd. Guidance conductor for driverless vehicle
US5175480A (en) * 1990-01-18 1992-12-29 Mckeefery James Vehicle guidance and control systems and methods for controllably guiding a vehicle along a predetermined pathway
US6421600B1 (en) * 1994-05-05 2002-07-16 H. R. Ross Industries, Inc. Roadway-powered electric vehicle system having automatic guidance and demand-based dispatch features
WO2001012283A2 (en) * 1999-08-13 2001-02-22 Bill Goodman Consulting, Llc Rf identification system for use in toys
GB0210886D0 (en) * 2002-05-13 2002-06-19 Zap Wireless Technologies Ltd Improvements relating to contact-less power transfer
TWI566814B (zh) * 2008-11-21 2017-01-21 通路實業集團國際公司 感應式玩具運輸工具
FR2945133A1 (fr) * 2009-04-30 2010-11-05 Abconsulting Guidage et alimentation de vehicules miniatures
US20110034254A1 (en) * 2009-08-07 2011-02-10 Bay Tek Games, Inc. Wireless energy transfer for arcade racing game
CN102553251A (zh) * 2011-11-03 2012-07-11 天津工业大学 基于无接触电能传输技术的智能循迹玩具电动车设计
CN103259346A (zh) * 2013-05-28 2013-08-21 东南大学 一种采用轨道式无线供电系统供电的电动玩具车

Also Published As

Publication number Publication date
DE202016007185U1 (de) 2016-12-01
CN109982762A (zh) 2019-07-05
EP3544707A1 (de) 2019-10-02
CN109982762B (zh) 2020-12-22
WO2018095568A1 (de) 2018-05-31
EP3544707B1 (de) 2020-06-03

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