EP2608225A1 - Système d'interaction de deux aimants permanents - Google Patents

Système d'interaction de deux aimants permanents Download PDF

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Publication number
EP2608225A1
EP2608225A1 EP11194871.7A EP11194871A EP2608225A1 EP 2608225 A1 EP2608225 A1 EP 2608225A1 EP 11194871 A EP11194871 A EP 11194871A EP 2608225 A1 EP2608225 A1 EP 2608225A1
Authority
EP
European Patent Office
Prior art keywords
magnet
polarity
interaction system
magnets
opposed
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Withdrawn
Application number
EP11194871.7A
Other languages
German (de)
English (en)
Inventor
Joseph Cilia
Martin Florin
Werner Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP11194871.7A priority Critical patent/EP2608225A1/fr
Publication of EP2608225A1 publication Critical patent/EP2608225A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM

Definitions

  • the invention relates to an interaction system of two permanent magnets and their magnetic fields as set forth in the preamble of claim 1.
  • Magnets with opposed polarity tend to attract one another up to maximum possible contact (in-locking); magnets with equal polarity tend to separate to the limit of their opposing magnetic forces (out-locking). While these magnetic qualities are desirable in some applications like in permanent contact (in-locking) or non-contact magnetic rails (out-locking) they are harmful in certain oscillating interactions where permanent magnets come into positions requiring energy to unlock them in or out when operating in one plane.
  • the drawbacks of the systems known in the art are avoided by an arrangement of the permanent magnets one of which is moving relative to the opposed magnet as described in claim 1, i. e. by using a magnetic field of at least one bi-polar V-shaped permanent magnetic field opposed by a single polarity magnetic field.
  • the magnetic fields of a series of permanent magnets are arranged in a V-form.
  • Claim 8 refers to an interaction system of at least two V-shaped magnetic fields having opposing polarities on their V-arms and moving on different planes.
  • the first magnet 10 has a triangular section with N polarity on one side of its V tip 11 and S polarity on the other side assuming that the magnetic fields follow roughly the shape of the magnet 10.
  • the opposing magnet 12 is in the form of a rectangular plate and has N polarity (or S polarity) on its side 13 facing the magnet 10.
  • Figure 1 shows a single V-arrangement whereas in figure 2 a double V arrangement is illustrated in which the opposing magnet 12 is also V-shaped.
  • the opposing magnet 12 has only N polarity (or S polarity) on its V-tip 11 facing the first magnet 10 with N polarity on one side and S polarity on the other side.
  • Figure 3 shows an arrangement in which one of the interacting magnetic fields is created by a V-shaped series 16 of permanent magnets 12.
  • one or more of the series 16 of magnets could be electro-magnetic in order to adjust the field shape or to control the interaction of the magnetic fields.
  • the opposed single magnet 10 having only N (or S) polarity on its V-tip 11 may be substituted by a series 16 of magnets 12 which, however, is not illustrated.
  • the V-shape of the field can not only be formed by exterior shape of a single permanent magnet as shown in figure 1 or by an arrangement of several permanent magnets as illustrated in figure 3 .
  • magnetic field shaping by means of shielding 18 fig. 4
  • field diversion 20 fig. 5
  • the shielding 18 is made up of a film of non-magnetic material like paper or aluminium sandwiched between magnetisable material.
  • One preferred option for such shielding is the use of two or more magnetisable layers 18 as illustrated in figures 6 and 7 .
  • a preferred method for field diversion is the use of magnetisable layers 18 as illustrated in figure 6 by which the magnetic field can be extended up to the dislocated field centre 20 (left side layer 18 of figure 6 ) or curved so that the curved field has its disclocated centre 20' as illustrated by the right side layer 18 of figure 6 .
  • the magnetic field of the permanent magnet 12 is partially shielded by at least one layer 18.
  • a further method of magnetic field shaping is the influence of an interacting second magnetic field 20.
  • V-shape does not necessarily mean straight-line arms of the shaped V. Magnetic fields, by their nature, are often curved. For that reason, the V-shape characteristic is achieved by the connecting line 22 ( figure 8 ) between the most distant points 24 on each arm 22, 22' of the useful fields forming the V-shape.
  • the angle ⁇ of the V-shape may be acute or obtuse.
  • FIGS 9 and 10 a modified arrangement of figure 8 is shown.
  • the V-shape is achieved by a magnetic field (in the illustration emanating from a single permanent magnet 10) and the direction of movement u or u' of the opposing magnet (s).
  • the opposed polarities are equal - here N-polarity - such that the single permanent magnet 10 with its corresponding field will be moved in the direction u away from the crossing V point.
  • the S-polarity of the single permanent magnet 10 faces the opposite polarity N of the series 16 of permanent magnets 12; as a result, the single magnet 10 will move in the opposite direction u' towards the crossing V point.
  • Figure 11 shows a series 16 of V-shaped magnets 10 moving in one plane 26 while the opposing V-shaped magnet 10' turns in a plane different from the one of the series 16 of magnets 10.
  • the series 16 of magnets 10 turns on its axis A.
  • the angle between axis A and axis B is of 90°.
  • the series 16 is shown here on a rotating base (plane 26); however, any other line of arrangement for the series 16 of magnets is possible like, for instance, straight-line arrangement and movement.
  • the invention may be summarized as the interaction of at least two permanent magnets in opposed arrangement and operating in one or more planes, where at least one magnet or magnetic field is V-shaped with N-polarity on one side and S-polarity on the other side facing only one polarity S or N of the opposed magnetic field, in case of magnet movement on more than one plane N and S polarity on all interacting magnets.
  • V-shaped magnetic field interaction is in rotation where one magnet or line of similar magnets or of similar magnet arrangements is on a rotating base while the opposing magnet or line of magnets or magnet arrangements remain(s) stationary or is in counter-rotation.
  • the purpose of such application could be to enhance efficiency of electric machines or gears.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Toys (AREA)
EP11194871.7A 2011-12-21 2011-12-21 Système d'interaction de deux aimants permanents Withdrawn EP2608225A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11194871.7A EP2608225A1 (fr) 2011-12-21 2011-12-21 Système d'interaction de deux aimants permanents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11194871.7A EP2608225A1 (fr) 2011-12-21 2011-12-21 Système d'interaction de deux aimants permanents

Publications (1)

Publication Number Publication Date
EP2608225A1 true EP2608225A1 (fr) 2013-06-26

Family

ID=45566803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11194871.7A Withdrawn EP2608225A1 (fr) 2011-12-21 2011-12-21 Système d'interaction de deux aimants permanents

Country Status (1)

Country Link
EP (1) EP2608225A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU693447A1 (ru) * 1978-04-03 1979-10-25 Новочеркасский ордена Трудового Красного Знамени политехнический институт им. Серго Орджоникидзе Магнитна система
WO2010090886A2 (fr) * 2009-01-23 2010-08-12 Yarger Eric J Structure magnétique
US20110074231A1 (en) * 2009-09-25 2011-03-31 Soderberg Rod F Hybrid and electic vehicles magetic field and electro magnetic field interactice systems
CN102136341A (zh) * 2010-12-30 2011-07-27 包头稀土研究院 一种各向异性v型取向磁环

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU693447A1 (ru) * 1978-04-03 1979-10-25 Новочеркасский ордена Трудового Красного Знамени политехнический институт им. Серго Орджоникидзе Магнитна система
WO2010090886A2 (fr) * 2009-01-23 2010-08-12 Yarger Eric J Structure magnétique
US20110074231A1 (en) * 2009-09-25 2011-03-31 Soderberg Rod F Hybrid and electic vehicles magetic field and electro magnetic field interactice systems
CN102136341A (zh) * 2010-12-30 2011-07-27 包头稀土研究院 一种各向异性v型取向磁环

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