WO2001042079A1 - Machine electromagnetique pour un vehicule, en particulier pour une bicyclette - Google Patents

Machine electromagnetique pour un vehicule, en particulier pour une bicyclette Download PDF

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Publication number
WO2001042079A1
WO2001042079A1 PCT/EP2000/012674 EP0012674W WO0142079A1 WO 2001042079 A1 WO2001042079 A1 WO 2001042079A1 EP 0012674 W EP0012674 W EP 0012674W WO 0142079 A1 WO0142079 A1 WO 0142079A1
Authority
WO
WIPO (PCT)
Prior art keywords
coils
electromagnetic machine
machine according
coil
coil unit
Prior art date
Application number
PCT/EP2000/012674
Other languages
German (de)
English (en)
Other versions
WO2001042079B1 (fr
WO2001042079A8 (fr
Inventor
Werner Schüssler
Michael Müller
Original Assignee
Schuessler Werner
Mueller Michael
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 Schuessler Werner, Mueller Michael filed Critical Schuessler Werner
Publication of WO2001042079A1 publication Critical patent/WO2001042079A1/fr
Publication of WO2001042079B1 publication Critical patent/WO2001042079B1/fr
Publication of WO2001042079A8 publication Critical patent/WO2001042079A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/38—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
    • H02K21/44—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines

Definitions

  • the present invention relates to an electromagnetic machine for a vehicle, in particular for a bicycle, according to the preamble of claim 1.
  • alternators In motor vehicles, alternators are known to be used to generate energy and are driven by a V-belt. These alternators receive a control current to collect the excitation field via collectors so that the voltage remains constant at low or high speeds.
  • this structure is subject to high wear and has losses caused by friction.
  • So-called dynamos are widely used in bicycles, which are attached to bicycle tires, e.g. with a roller head that transmits the rotary movement of the wheel to a generator of the dynamo.
  • the use of such a dynamo requires a considerable amount of extra effort from the cyclist, since the head wheel of the dynamo, which is pressed against the impeller with a strong spring, must also be rotated.
  • Using the dynamo will also wear the tire.
  • bad weather conditions such as rain or snow, where a functioning dynamo is particularly important, it can also happen that the top wheel of the dynamo loses mechanical contact with the tire. This means that the headwheel only slides along the tire instead of turning. This leads to the lighting of the bicycle failing.
  • Hub and roller dynamos are also available on the market. Another problem is that there is no regulation of the output voltage, which therefore fluctuates greatly due to slow or fast rotary movements of the head wheel. This can lead to the power supply of the lighting system becoming so large that individual lamps burn out.
  • the present invention is therefore based on the object of providing an electromagnetic machine for a vehicle, in particular for a bicycle, in which the transmission of the rotary movement between a rotating part, in particular a vehicle wheel, and a stationary part of the machine is improved.
  • the main advantage of the present invention is that the transmission of the rotational movement between a rotating part of a vehicle, in particular a vehicle wheel, and a fixed part of the machine is improved.
  • the machine can act both as a generator and as a motor.
  • the regulation of the output voltage is improved in generator operation and the torque is improved in engine operation.
  • a particular advantage is that a control field for generating a constant voltage can be generated without wear.
  • FIG. 1 shows a coil unit of the electromechanical machine according to the invention
  • FIG. 2 shows the coil unit of FIG. 1 assigned to a ring gear in the open state
  • FIG. 3 shows the coil unit of FIG. 1 assigned to the ring gear in the closed state
  • FIG. 4 is an illustration for explaining the main magnetic flux resulting from the electromagnetic machine according to the invention and the arrangement of the control field coils;
  • FIGS. 5 and 6 representations to explain the weakening or strengthening of the main flow
  • Figure 10 is a plan view of a ring gear of the electromagnetic machine according to the invention.
  • Figure 11 is a side view of the ring gear of the figure
  • FIG. 12 shows an embodiment of the electromagnetic machine according to the invention with several pickups
  • Figure 13 shows a ring gear which is constructed so that the magnetic fluxes are segmented and
  • the present invention relates to a non-contact electromagnetic machine that works on the principle of electromagnetic induction.
  • the machine has at least one coil unit which is fastened to the frame or the like of a vehicle, in particular a bicycle, and at least one magnetically highly conductive yoke ring which has subdivisions and is fastened to a rotating part of the vehicle, in particular to a wheel of a bicycle ,
  • the electromagnetic machine according to the invention consists of a coil unit 1, which is shown in FIG. 1, and a ring gear 3, which is shown, for example, in FIG.
  • the coil unit 1 contains a permanent magnet 5 and induction coils 7, 9 with a core, the permanent magnet 5 being arranged at an angle of 90 ° to the induction coils 7, 9. This angular position ensures that the magnetic stray field of the induction coils 7, 9 is penetrated vertically, so that the resulting flux ⁇ is very small. There is no overlap condition.
  • FIG. 2 shows the coil unit 1 arranged on a yoke ring 3 in the open state, the magnetic flux ⁇ being very small and being determined by air gaps in the magnetic circuit.
  • the air gap which determines the magnetic flux, is relatively large compared to the magnetically highly conductive yoke ring. It opposes the excitation field, which keeps the magnetic flux ⁇ small.
  • the teeth which are arranged in the circumferential direction of the yoke ring 3 and are evenly spaced from one another are designated by 11.
  • the yoke ring 3 is aligned with a pair of teeth 11, 11 to the coils 7, 9 of the coil unit 1 (overlap), which is why the magnetic circuit is closed.
  • the magnetic flux ⁇ is now only determined by the two small air gaps between the teeth 11, 11, which form the said pair of teeth, and the coils 7, 9 of the coil unit 1 serving as a removal unit in generator operation.
  • this excitation field is generated by control field coils 13, 15 which are arranged on the permanent magnet 5.
  • the field of excitation can with appropriate control of the control field coils 13, 15 connected in series with one another, counteract or weaken the excitation field of the permanent magnet 5 or strengthen it when the excitation fields mentioned interact.
  • the excitation field of the control field coils 13, 15 is generated with the help of a control circuit which is explained in more detail later in connection with FIGS. 7 to 9.
  • the field of excitation of the permanent magnet is weakened because the current flow in the control field coils 13 and 15 which are connected in series with one another is regulated by the control circuit so that the field which arises in them acts counter to the field of the permanent magnet.
  • the field of the permanent magnet is designated in FIG. 5 with ⁇ Mag n.
  • the control coil field generated by the control field coils 13 and 15 is ⁇ ⁇ p. designated. Both fields ⁇ agn. and ⁇ Sp together result in a resulting main flux ⁇ res •, which is responsible for the voltage generated in the induction coils 7, 9.
  • the induced voltage is relatively small due to the conditions described.
  • Excitation field ⁇ Sp is the control field coils 13 and 15 is the permanent magnetic field ⁇ Mag n.
  • the resulting main flow ⁇ res. is accordingly larger than that of FIG. 5.
  • the voltage induced in the coils 7, 9 is relatively large.
  • Control circuit 20 is explained below in connection with Figures 7 to 9.
  • the control circuit 20 consists of a comparator 21, and a downstream of this actuator 23.
  • the comparator 21 is supplied with a command variable w by a circuit 25.
  • the voltage X of an induction coil 7, 9 is present at the input of the comparator 21.
  • the current for the control field coils 13, 15 is tapped at the output of the actuator 23.
  • the control current I of the actuator can be set via the reference variable w of the circuit 25.
  • the circuit 25 has the form of a variable resistor. Since the manipulated variable y can have both a positive and a negative value, the actuator 23 should be a push-pull stage which is capable of allowing the current to flow in both directions.
  • the magnetic field and the direction in which it should act are determined on the basis of the direction of flow of the current in the control field coils 13 and 15.
  • the direction of current flow of the actuator 23 will be such that the connected control field coils 13, 15 generate an opposing field and as much as is determined by the value y.
  • the magnetically resulting flux ⁇ re s. is weakened.
  • the induced voltage at the induction coils 7, 9 drops.
  • FIGS. 10 and 11 show the structure of a yoke ring 3.
  • This essentially has the shape of a ring, from which individual teeth 11, which are evenly spaced apart along the circumference of the ring, protrude to one side.
  • the subdivision in the individual segments can be made smaller. This means that the width of the teeth 11 and the spaces between two teeth 11 becomes smaller.
  • the induction coils 7, 9 of the individual coil units 1 can be connected either in series or in parallel. The same applies to the control field coils 13, 15 of the individual coil units 1.
  • the induction coils 7, 9 on the outside are smaller by a factor of 2 than the core cross section a tooth cross-section, since only the magnetic flux of a magnet flows here and not two magnetic fluxes as with the other induction coils 7/9.
  • a mixed parallel or series connection of the induction coils is also conceivable. The same applies to the control field coils.
  • an increase in the induced voltage can be achieved if the toothed ring 3 'is constructed such that individual U-shaped toothed segment pairs 33 are arranged next to one another on a non-magnetic base plate 31 in the circumferential direction, such that the legs of the U in the circumferential direction follow each other and the cross parts connecting the legs are attached to the non-magnetic base plate 31.
  • FIG. 14 shows another embodiment of the
  • Coil unit 71 in which two permanent magnets 51 and 52 are arranged perpendicular to a yoke part 53.
  • the magnetic stray fields of the permanent magnets 51, 52 penetrate the coils 7, 9 with the core horizontally, since the permanent magnets 51, 52 are each arranged coaxially with the axis of the coils 51 and 52, whereas in the coil unit 1 of FIG. 1 the permanent magnet 5 is perpendicular to the axes of the coils 7, 9 is aligned.
  • FIGS. 15 to 17 show an embodiment in which the yoke ring 30 is designed such that it does not cause yoke in the circumferential direction as in FIG. 10 but in the radial direction.
  • the individual yoke teeth 110 are arranged on a carrier part 310 in such a way that they run in the radial direction and have a length which is so great that, according to FIGS. 16 and 17, the coil units 1 and 71 of the yoke teeth 110 at Rotation of the yoke ring 30 can be fully covered.
  • the individual coil units which can be provided in any number, are also aligned radially.
  • the yoke ring 30 is structurally and from the material point of view relatively simple and inexpensive to implement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

Machine électromagnétique pour un véhicule, en particulier pour une bicyclette, qui comporte au moins une unité bobine (1; 71) destinée à être fixée sur le cadre de la bicyclette et une partie de reflux magnétique (3; 30) destinée à être fixée sur une partie rotative du véhicule. Lorsqu'elle se trouve en rotation, la partie de reflux magnétique inverse le flux magnétique dans l'unité bobine (1; 71).
PCT/EP2000/012674 1999-12-13 2000-12-13 Machine electromagnetique pour un vehicule, en particulier pour une bicyclette WO2001042079A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29921874U DE29921874U1 (de) 1999-12-13 1999-12-13 Elektromagnetische Maschine für ein Fahrzeug, insbesondere ein Fahrrad
DE29921874.0 1999-12-13

Publications (3)

Publication Number Publication Date
WO2001042079A1 true WO2001042079A1 (fr) 2001-06-14
WO2001042079B1 WO2001042079B1 (fr) 2002-01-03
WO2001042079A8 WO2001042079A8 (fr) 2002-05-30

Family

ID=8082888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/012674 WO2001042079A1 (fr) 1999-12-13 2000-12-13 Machine electromagnetique pour un vehicule, en particulier pour une bicyclette

Country Status (2)

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DE (1) DE29921874U1 (fr)
WO (1) WO2001042079A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006049491A1 (fr) * 2004-09-23 2006-05-11 E-Traction Europe B.V. Dispositif d’entrainement
WO2008101507A1 (fr) * 2007-02-21 2008-08-28 Reelight Aps Générateur en deux parties pour véhicules
US8441218B2 (en) 2008-01-02 2013-05-14 Nxp B.V. Electrical regenerative braking

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699130B1 (de) * 2008-07-09 2010-05-14 Kaech Motors Ag Magnetspinmotor.
EP2323242A1 (fr) * 2009-11-13 2011-05-18 ABUS August Bremicker Söhne KG Générateur pour roue de bicyclette
AU2016325752B2 (en) * 2015-09-25 2019-02-28 Daikin Industries, Ltd. Rotating electric machine
CN111469965B (zh) * 2020-05-06 2020-12-25 徐州坤达电动车有限公司 一种带有动力回收功能的电动车辅助设备

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH235423A (de) * 1943-06-22 1944-11-30 Ag Philips Lampen Fahrrad mit Dynamo.
GB612918A (en) * 1945-06-09 1948-11-19 British Thomson Houston Co Ltd Improvements in and relating to magneto-electric machines
US2564320A (en) * 1948-12-17 1951-08-14 Keefe And Merritt Company O Permanent magnet type electric generator
GB684786A (en) * 1950-06-28 1952-12-24 English Electric Co Ltd Improvements relating to permanent-magnet generators
US2802959A (en) * 1956-04-27 1957-08-13 Gen Electric Dynamoelectric machine
DE2508940A1 (de) * 1975-03-01 1976-09-09 Nikolaus Notter Rad - licht - induktor
US4095663A (en) * 1976-10-21 1978-06-20 Lucas Industries Limited Cycles
DE2948980A1 (de) * 1978-12-06 1980-06-26 Magneti Marelli Spa Buerstenloser dynamo, insbesondere fuer kraftfahrzeuge
FR2653612A1 (fr) * 1989-10-23 1991-04-26 Loyseau De Grand Maison Guy Chargeur magnetique pour cycle.
GB2247362A (en) * 1990-08-24 1992-02-26 Carl Erik Stille Exciting arrangement for homopolar machine
DE4229457A1 (de) * 1992-09-03 1994-03-10 Renke Marken Vorrichtung zur Stromerzeugung am Fahrrad
JP2000032726A (ja) * 1998-05-07 2000-01-28 Toshihiko Yamashita 発電装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1513293B2 (de) 1965-07-12 1972-11-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt In seiner drehzahl durch pulse gesteuerter eletromotor, der mit einem impulsgeber zusammenarbeitet
DE2729446A1 (de) 1977-06-30 1979-01-11 Union Sils Van De Loo & Co Zweirad-lichtmaschine, insbesondere fahrradlichtmaschine
DE4324622A1 (de) 1993-07-22 1995-01-26 Teves Gmbh Alfred Vorrichtung zum Erfassen einer Drehbewegung
US5874792A (en) 1997-06-10 1999-02-23 Industrial Technology Research Institute Bicycle generator

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH235423A (de) * 1943-06-22 1944-11-30 Ag Philips Lampen Fahrrad mit Dynamo.
GB612918A (en) * 1945-06-09 1948-11-19 British Thomson Houston Co Ltd Improvements in and relating to magneto-electric machines
US2564320A (en) * 1948-12-17 1951-08-14 Keefe And Merritt Company O Permanent magnet type electric generator
GB684786A (en) * 1950-06-28 1952-12-24 English Electric Co Ltd Improvements relating to permanent-magnet generators
US2802959A (en) * 1956-04-27 1957-08-13 Gen Electric Dynamoelectric machine
DE2508940A1 (de) * 1975-03-01 1976-09-09 Nikolaus Notter Rad - licht - induktor
US4095663A (en) * 1976-10-21 1978-06-20 Lucas Industries Limited Cycles
DE2948980A1 (de) * 1978-12-06 1980-06-26 Magneti Marelli Spa Buerstenloser dynamo, insbesondere fuer kraftfahrzeuge
FR2653612A1 (fr) * 1989-10-23 1991-04-26 Loyseau De Grand Maison Guy Chargeur magnetique pour cycle.
GB2247362A (en) * 1990-08-24 1992-02-26 Carl Erik Stille Exciting arrangement for homopolar machine
DE4229457A1 (de) * 1992-09-03 1994-03-10 Renke Marken Vorrichtung zur Stromerzeugung am Fahrrad
JP2000032726A (ja) * 1998-05-07 2000-01-28 Toshihiko Yamashita 発電装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 4 31 August 2000 (2000-08-31) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006049491A1 (fr) * 2004-09-23 2006-05-11 E-Traction Europe B.V. Dispositif d’entrainement
WO2008101507A1 (fr) * 2007-02-21 2008-08-28 Reelight Aps Générateur en deux parties pour véhicules
US8441218B2 (en) 2008-01-02 2013-05-14 Nxp B.V. Electrical regenerative braking

Also Published As

Publication number Publication date
WO2001042079B1 (fr) 2002-01-03
WO2001042079A8 (fr) 2002-05-30
DE29921874U1 (de) 2000-04-13

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