EP2534851A1 - Moteur magnetique de transducteur electrodynamique - Google Patents
Moteur magnetique de transducteur electrodynamiqueInfo
- Publication number
- EP2534851A1 EP2534851A1 EP11708914A EP11708914A EP2534851A1 EP 2534851 A1 EP2534851 A1 EP 2534851A1 EP 11708914 A EP11708914 A EP 11708914A EP 11708914 A EP11708914 A EP 11708914A EP 2534851 A1 EP2534851 A1 EP 2534851A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- annular
- bonded magnet
- magnet
- cavity
- annular bonded
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims description 37
- 239000000696 magnetic material Substances 0.000 claims description 10
- 230000005520 electrodynamics Effects 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 4
- 239000011796 hollow space material Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 240000008415 Lactuca sativa Species 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 235000012045 salad Nutrition 0.000 description 2
- 241000308356 Tesia Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Definitions
- the present invention relates to a moving coil electrodynamic transducer magnetic motor device of the type comprising a magnetic circuit consisting of an annular bonded magnet.
- the invention is intended in particular to enter into the constitution of an electrodynamic loudspeaker.
- the invention can be applied to any type of magnetic voice coil motor.
- a magnetic coil electrodynamic loudspeaker motor with a voice coil comprising a magnetic circuit made of a magnet which is bound, for example by the patent document in the name of the applicants, published under the reference WO2009 / 1331.
- this document the classic speaker motor with permanent magnets and front and rear iron plates to guide the field lines, is replaced by a ring-shaped magnet-shaped structure made of plasto-magnet (binder material). thermoplastic type) or elasto-magnet (binder material of the elastomer type).
- the bonded magnets are in fact made by injection into a mold, which can have a very large variety of shapes. This makes it possible to create elements whose useful magnetic field is improved and therefore to limit the leakage field which is a main defect of conventional sintered magnets.
- the subject of the document WO2009 / 133149 is a magnetic motor device, without field plates, but whose permanent magnet is an annular bonded magnet, of a particular shape having a cylindrical surface and on the opposite side a convex surface.
- This document notably discloses a magnetic device whose linked magnet is installed inside the moving coil support, the bonded magnet having an outer cylindrical surface which extends facing the coil windings of the coil and a convex surface. which extends towards the inside of the magnet.
- This convex surface is such that the trace of an axial plane of the bonded magnet and the convex surface is a hemi-ellipse or a semicircle.
- the outer cylindrical surface has two cylindrical portions opposite to each other with respect to the median plane of the magnet.
- the field lines extend from one part to the other inside the magnet parallel to the curvature defined by the hemi-elliptical convex surface and cutting substantially perpendicularly. the cylindrical surface. This effectively concentrates the magnetic field to the wire windings of the wound support.
- the field lines do not close easily beyond the coiled carrier opposite the magnet.
- the document WO2009 / 133149 discloses the implementation of a second magnet bound around the coil support and symmetrical with that which is housed inside so as to close the field lines to obtain a better linearity of the magnetic field. and limit magnetic leakage.
- FIG. 1 illustrates for this purpose an example of a magnetic field calculation obtained in a bonded magnet annular motor 30 according to WO2009 / 133149, having an inner cylindrical surface and, on the opposite side, a convex surface which extends towards the outside of the magnet and whose convex surface is such that the intersection of an axial plane of the bonded magnet and the convex surface is semicircular, as illustrated schematically in section next to the graph of FIG. 1.
- This magnet bound is intended to surround the coil support so that the inner cylindrical surface extends opposite windings of the coil wire.
- the graph of FIG. 1 represents an example of a Tesia magnetic field (T) obtained inside this annular motor at a constant distance from the cylindrical surface, as a function of the height z in millimeters of the structure of the magnet. relative to a median plane P of the structure, perpendicular to the axis of revolution Z of the magnet.
- the Hatched area on the graph corresponds to an area at the heart of the annular motor material where the magnetic field is weak or difficult to control during the industrial manufacture of the magnet.
- the object of the present invention is to provide a magnetic motor device based on bonded magnets capable of at least partially overcoming the mentioned limitations.
- the present invention aims at providing a magnetic motor device that makes it possible to reduce the weight and / or the volume of the device to promote its integration while having an optimized useful magnetic field,
- the present invention is essentially characterized in that said annular bonded magnet has a hollow annular structure, said hollow annular structure comprising a cavity annular connected to an upper portion of an outer surface of said hollow annular structure 1 by a first annular channel forming a first gap in which a first voice coil winding is movable.
- the annular cavity is constituted by an internal hollow space arranged inside the solid body of the annular bonded magnet and delimited by an inner surface of the annular bonded magnet, said outer surface of the annular bonded magnet being remote radially from said inner surface of the annular bonded magnet and is connected to said inner surface by a solid portion of the annular bonded magnet forming a residual magnetic material thickness between said inner surface defining said annular cavity within the solid body annular bonded magnet and said outer surface of the annular bonded magnet.
- the intersection of said inner surface and said outer surface of the annular bonded magnet respectively with an axial plane of the annular bonded magnet is a circle.
- the intersection of said inner surface and said outer surface of the annular bonded magnet respectively with an axial plane of the annular bonded magnet is an ellipse.
- said annular bonded magnet comprises a solid central core surrounded by said annular cavity.
- said solid portion of the annular bonded magnet in its portion which is disposed substantially opposite the axis of revolution of the annular bonded magnet, is adapted to extend towards the central portion of the annular bonded magnet.
- the ring-bound magnet in the direction of said axis of revolution, so as to form said solid central core.
- said upper portion of said outer surface of the annular connected magnet comprises a truncation opening on said annular cavity, said truncation having two cylindrical surfaces facing each other substantially parallel to the axis of revolution of the annular bonded magnet and each extending respectively between said upper portion of said outer surface and said annular cavity, so as to form said first annular channel connecting said annular cavity to said upper portion of said outer surface of the annular bonded magnet.
- said annular cavity is connected to a lower portion of said outer surface of the annular bonded magnet, opposite said upper portion relative to a median plane of the annular bonded magnet, by a second annular channel aligned with said first annular channel through said annular cavity and forming a second air gap in which a second voice coil winding is movable.
- said lower portion of said outer surface of the annular bonded magnet comprises a truncation opening on said annular cavity, said truncation having two cylindrical surfaces facing each other substantially parallel to an axis of revolution of the magnet annular bond and each extending respectively between said lower portion of said outer surface and said annular cavity, so as to form said second annular channel connecting said annular cavity to said lower portion of said outer surface of the annular bonded magnet.
- said solid portion of the annular bonded magnet has a variable thickness, so that said annular bonded magnet has a magnetic flux passage section corresponding to a magnetic surface resulting from the intersection of the annular bonded magnet with a plane perpendicular to the axis of revolution of the annular bonded magnet, which is constant along a vertical dimension of said annular bonded magnet.
- said solid portion of the annular bonded magnet may have a constant thickness.
- said upper portion of said outer surface of the annular bonded magnet comprises a substantially flat portion, so as to facilitate assembly with other elements of the electrodynamic transducer, in particular the salad bowl.
- FIG. 1 illustrates a schematic sectional view of a magnetic annular magnet motor linked according to the state of the art and a corresponding graph showing the magnetic field created in the structure as a function of height, and has already been described;
- FIG. 2 schematically illustrates a sectional view of the annular structure of the bonded magnet forming the electrodynamic transducer magnetic motor according to the present invention
- FIG. 3 schematically illustrates an alternative embodiment of the annular structure of bonded magnet according to the invention, wherein said annular structure of bound magnet is constant thickness;
- Figure 4 schematically illustrates a dual-coil voice coil carrier configuration
- FIG. 5 schematically illustrates another embodiment of the annular structure of bonded magnet according to the invention, wherein said annular structure of bound magnet is adapted to be suitable for double windings;
- FIG. 6 schematically illustrates another variant embodiment of the bonded magnet annular structure according to the invention, wherein said Annular structure of bound magnet is suitable for small diameter windings.
- FIG. 2 illustrates in section a magnetic motor 10 consisting of a bonded magnet 11 made for example of a plasto-magnet, in the form of a hollow annular structure whose geometry has an axis of revolution Z .
- the ring-shaped annular magnet 11 of axis of revolution Z forms a hollow solid body, in contrast with the annular bonded magnets of the prior art being in the form of solid solids.
- the annular bonded magnet 11 comprises an annular cavity 12, or recess, constituted by an internal hollow space arranged inside the solid body of the annular bonded magnet 11 and delimited by an inner surface 23 of the annular bonded magnet 11 whose intersection with an axial plane of the annular bonded magnet is for example a circle.
- the annular bonded magnet 11 has an outer surface 14 spaced radially from the inner surface 23 formed within the solid body of the annular bonded magnet and is connected thereto by a solid portion 24 of the annular bonded magnet. 11, forming a residual magnetic material thickness between the inner 23 and outer surfaces 14. The intersection of the outer surface 14 with an axial plane of said annular bonded magnet is for example a circle.
- intersection of the inner surface 23 and the outer surface 14 of the annular bonded magnet 11 respectively with an axial plane of the annular bonded magnet 11 is an ellipse.
- the annular cavity 12 advantageously makes it possible to eliminate the magnetic mass that is not useful at the heart of the annular bonded magnet 11.
- the annular cavity 12 is connected to an upper portion 13 of the outer surface 14 of the annular bonded magnet 11 by a first annular channel 15, intended to constitute a first gap.
- This first gap constitutes a narrow space between the two vertical surfaces 15a and 15b of the bonded magnet formed by the edges of the annular channel 15, where a first coil 17 mounted on a movable support 16 centered on this gap can slide vertically.
- the magnetic field created inside the bound magnet follows at every point the curvature of the circle (or of the ellipse) and escapes out of the magnet by the two vertical surfaces 15a and 15b defining the first gap, so that at the level of the latter, the magnetization is perpendicular to the two surfaces 15a and 15b between which is intended to be placed the voice coil 17. This amounts to minimizing the angle between each surface 15a, 15b of the air gap and the support 16 of the coil. In the optimal case, these three surfaces must be parallel.
- the upper portion 13 of the outer surface 14 of the annular bonded magnet comprises a truncation opening on the annular cavity 12 through the solid portion 24 of the annular magnet 11, this truncation then having two cylindrical surfaces facing each other. one of the other, above the surfaces 15a and 15b, substantially parallel to the axis Z of revolution of the annular connected magnet 11 and each extending respectively between the upper portion 13 of the outer surface 14 and the cavity ring 12, so as to form the annular channel 15 connecting the annular cavity 12 to the upper portion 13 of the outer surface 14 of the annular bonded magnet 11.
- the magnetic field lines extend through the magnet, along an axial plane, following the curvature defined by the inner and outer circular (or elliptical) surfaces and cutting substantially perpendicularly the two cylindrical surfaces facing each other. 15a and 15b of the annular channel 15. They thus pass radially through the voice coil 17.
- the hollow magnet-bound annular structure constituting the magnetic motor of the invention forms an open hollow torus.
- this structure thus has a cross section of circular shape.
- the bound magnet could be of ellipsoidal section.
- This structure can be obtained by injection molding, for example by molding two one-piece assemblies corresponding to two parts of the annular connected magnet opposite to each other with respect to a moving coil moving plane, which are then assembled to form the hollow annular structure of the annular bonded magnet 11.
- the optimization of the magnetic mass of the magnet motor bound magnet is therefore primarily based on the particular arrangement according to a hollow annular structure, advantageously to remove the Magnetic mass not useful in the heart of the annular structure made of plasto-magnet.
- annular cavity 12 is thus configured to define a thickness of variable residual magnetic material between it and the outer surface of the annular structure hollow along the outer surface.
- the solid portion 24 located between the inner surface 23 defining the annular cavity 12 inside the solid body of the annular bonded magnet 1 and the outer surface 3 of the annular bonded magnet is provided to have a variable thickness.
- such an optimization consists in conforming the annular cavity 12 by varying the thickness e (0) of residual magnetic material formed by the solid portion 24 of the annular bound magnet. between the annular cavity 12 and the outer surface 14, depending on the angle ⁇ , so that the bonded magnet 1 has a passage section of the constant magnetic flux along its vertical dimension, ie in a direction parallel to the axis of revolution Z of the annular bonded magnet 11.
- the passage section of the flow is defined by the magnetic surface of the hollow annular structure of the bonded magnet cut along a plane perpendicular to the Z axis. magnetic flux passageway therefore corresponds to the magnetic surface resulting from the intersection of the annular bonded magnet 11 with a plane perpendicular to the axis of revolution Z of the annular bonded magnet 1.
- Optimizing the shape of the residual magnetic material by acting on its thickness must ensure that the magnetic surface S is constant as a function of the flow, so as to maintain a constant magnetic surface for any height z of the engine.
- R the radius of the voice coil intended to slide in the gap between the surfaces 15a and 15b;
- ⁇ ( ⁇ ) the internal "radius" of the hollow annular structure.
- Shapes such as outer radius or inner radius are constant are the most optimal forms in terms of manufacture. However, ellipsoidal shapes are perfectly conceivable.
- the hollow annular structure of the invention allows a reduction of the mass of the engine compared to the mass of a conventional motor of 50 to 80%.
- the circles formed by the intersection of the axial plane of the annular bonded magnet 11 with respectively the inner surface 23 and the outer surface 14 of the bonded magnet 11 are eccentric, so that the solid portion 24 of the solid body of the annular bonded magnet 11 located between the inner surface 23 defining the annular cavity 12 inside the solid body of the annular bonded magnet 11 and the surface outer 13 has a variable thickness.
- the magnetic motor 10 consists of a bonded magnet 11 comprising a hollow annular structure in the form of an open torus of constant thickness.
- the circles formed by the intersection of the axial plane of the annular bonded magnet 11 with the inner surface 23 and the outer surface 14 of the annular bonded magnet 11 respectively. are concentric, so that the solid portion 24 of the solid body of the annular bonded magnet 11 located between the inner surface 23 defining the annular cavity 12 inside the solid body of the annular bonded magnet 11 and the outer surface 13 has a constant thickness e.
- the hollow ring structure with a constant thickness could also be defined with an ellipsoidal section.
- the annular cavity 12 is thus arranged within the hollow annular structure, so as to define a constant thickness e of residual magnetic material between the cavity and the outer surface of the annular structure.
- the parameters that can be varied are then the thickness e of the bound magnet 11 and the inner radius r1 of the hollow annular structure.
- the minimum internal radius will impose the maximum travel X Ma x of the coil 17: X Ma x ⁇ 2 * r1.
- the motor structure is thus made symmetrical and will be easier to manufacture. It is, however, less optimized at the mass level than the variable thickness hollow annular structure presented previously with reference to FIG. 2.
- the magnetic motor structure proposed by the invention may also be suitable for double-coil mobile coils, as illustrated in FIG. 4.
- the voice coil support 16 comprises in this configuration a first upper winding constituting a first voice coil winding 17. and a second lower winding constituting a second voice coil winding 18, a diaphragm 19 being attached to the upper end of the voice coil stand.
- the first 17 and the second 18 voice coil windings axially spaced apart from each other consist of a single wire, but wound in the opposite direction, so that the current flowing in the second winding 18 flows in an opposite direction the current flowing in the first winding 17.
- the magnetic motor structure 10 can be modified as shown in FIG. 5.
- a second annular channel 20 is provided between the annular cavity 12 and the surface.
- outer 14 of the hollow annular structure opening at a lower portion 21 of the outer surface, opposite the upper portion 13 of this surface through which opens the first directory channel 15.
- the two annular channels 15 and 20 are aligned through the annular cavity 12 and respectively constitute a first air gap and a second air gap, intended respectively to accommodate the first coil coil winding 17 and the second coil coil winding, wound on the mobile support 16 centered on these two air gaps .
- the lower portion 21 of the outer surface 14 of the annular connected magnet 11, opposite to the upper portion 13 of the outer surface 14 relative to the median plane of the magnet 11, also comprises a truncation opening on the annular cavity 12 through the solid portion 24 of the annular magnet 11, this truncation then having two cylindrical surfaces 20a and 20b opposite one another, substantially parallel to the axis Z of revolution of the annular bonded magnet 11 , and each extending respectively between the lower portion 21 of the outer surface 14 and the annular cavity 12, so as to form the second annular channel 20 connecting the annular cavity 12 to the lower portion 21 of the outer surface 14 of the annular bonded magnet 11.
- the two windings 17 and 18 are then respectively adjusted to the right of the two facing cylindrical surfaces 15a and 15b of the first annular channel 15 and the two facing cylindrical surfaces 20a and 20b of the second annular channel 20, so that the two bundles of lines field through the two windings are oriented in opposite directions from each other. Also, the forces exerted on the tubular element are double, which increases the power of the engine device.
- the hollow annular structure is closed in its lower part, in order to better guide the field lines and thus limit losses in the air.
- the lower portion 21 of the outer surface 14 then comprises no truncation.
- FIG. 6 illustrates another form variant, in which the hollow annular structure of the motor 10 comprises a solid central core of magnetic material 22, surrounded by the annular cavity 12. Also, according to this variant, the solid portion 24 of the magnet annular bond 1, which is arranged facing the axis of revolution Z of the annular bonded magnet 11, is adapted to extend towards the central portion of the annular bonded magnet 11 towards the axis of revolution Z of the annular bonded magnet 11 so as to form the central core full of magnetic material 22.
- This variant is illustrated in the case with double air gap.
- the hollow annular structure forms a closed hollow torus.
- the hollow annular structure according to this variant could also be of ellipsoidal section.
- the annular cavity 12 is formed in such a way that the residual magnetic thickness variation between the annular cavity 12 and the external surface 14 of the structure follows the same law as a function of the angle ⁇ as that defined above with reference to the Figure 2.
- the external rets r ex t (S) meet at an angle 0
- j m such that 6> iim acos (). This form is particularly advantageous for producing motors for loudspeakers with small diameter windings.
- the upper portion 13 of the outer surface 14 of the hollow annular structure may be shaped so as to have a substantially flat area to facilitate mounting of the motor part with the salad bowl.
- an orifice (not shown) can be provided passing right through the solid central core 22, substantially along the axis of revolution Z, in order to form a decompression hole.
- This decompression hole makes it possible to eliminate any drag on the displacement of the voice coil 17, due to the compression of the air by the solid central core 22, which would induce non-linearity during its operation.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1050925A FR2956273B1 (fr) | 2010-02-10 | 2010-02-10 | Moteur magnetique de transducteur electrodynamique |
PCT/FR2011/050275 WO2011098727A1 (fr) | 2010-02-10 | 2011-02-09 | Moteur magnetique de transducteur electrodynamique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2534851A1 true EP2534851A1 (fr) | 2012-12-19 |
EP2534851B1 EP2534851B1 (fr) | 2016-02-03 |
Family
ID=42556673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11708914.4A Not-in-force EP2534851B1 (fr) | 2010-02-10 | 2011-02-09 | Moteur magnetique de transducteur electrodynamique |
Country Status (9)
Country | Link |
---|---|
US (1) | US8861778B2 (fr) |
EP (1) | EP2534851B1 (fr) |
JP (1) | JP5674213B2 (fr) |
KR (1) | KR20120114348A (fr) |
CN (1) | CN102783181B (fr) |
AR (1) | AR083140A1 (fr) |
BR (1) | BR112012020134A2 (fr) |
FR (1) | FR2956273B1 (fr) |
WO (1) | WO2011098727A1 (fr) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2059085C (fr) * | 1991-02-05 | 2000-02-29 | Herbert A. Leupold | Machine electrique a grande puissance munie d'aimants toroidaux permanents |
KR950024611A (ko) * | 1994-01-05 | 1995-08-21 | 구쯔자와 겐따로우 | 자기회로를 구비한 스피커 |
US5634263A (en) * | 1995-09-11 | 1997-06-03 | The United States Of America As Represented By The Secretary Of The Army | Methods of manufacture of permanent magnet structures with sheet material |
JP2000059886A (ja) * | 1998-08-07 | 2000-02-25 | Sony Corp | スピーカ |
CN2636561Y (zh) * | 2003-06-25 | 2004-08-25 | 浙江新嘉联电子股份有限公司 | 受话器或扬声器的双磁路体 |
FR2892886B1 (fr) * | 2005-11-03 | 2008-01-25 | Bernard Richoux | Transducteur electrodynamique, applications aux haut-parleurs et geophones |
JP2007306214A (ja) * | 2006-05-10 | 2007-11-22 | Fujitsu Ten Ltd | スピーカ磁気回路 |
CN201134323Y (zh) * | 2007-08-04 | 2008-10-15 | 曹晓洪 | 电磁感应受控直驱往复式高效换能器 |
US8135162B2 (en) * | 2007-11-14 | 2012-03-13 | Harman International Industries, Incorporated | Multiple magnet loudspeaker |
ES2402081T3 (es) * | 2008-04-30 | 2013-04-26 | Renault S.A.S. | Unidad de motor de transducción de bobina sin hierro y sin dispersión |
-
2010
- 2010-02-10 FR FR1050925A patent/FR2956273B1/fr not_active Expired - Fee Related
-
2011
- 2011-02-09 JP JP2012552447A patent/JP5674213B2/ja not_active Expired - Fee Related
- 2011-02-09 KR KR1020127020886A patent/KR20120114348A/ko active IP Right Grant
- 2011-02-09 BR BR112012020134A patent/BR112012020134A2/pt not_active IP Right Cessation
- 2011-02-09 US US13/574,827 patent/US8861778B2/en not_active Expired - Fee Related
- 2011-02-09 EP EP11708914.4A patent/EP2534851B1/fr not_active Not-in-force
- 2011-02-09 CN CN201180008921.7A patent/CN102783181B/zh not_active Expired - Fee Related
- 2011-02-09 WO PCT/FR2011/050275 patent/WO2011098727A1/fr active Application Filing
- 2011-02-11 AR ARP110100423 patent/AR083140A1/es not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2011098727A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102783181B (zh) | 2015-11-25 |
WO2011098727A1 (fr) | 2011-08-18 |
CN102783181A (zh) | 2012-11-14 |
KR20120114348A (ko) | 2012-10-16 |
JP5674213B2 (ja) | 2015-02-25 |
BR112012020134A2 (pt) | 2016-11-29 |
RU2012138272A (ru) | 2014-03-20 |
EP2534851B1 (fr) | 2016-02-03 |
US20120326532A1 (en) | 2012-12-27 |
FR2956273B1 (fr) | 2012-03-09 |
FR2956273A1 (fr) | 2011-08-12 |
JP2013520061A (ja) | 2013-05-30 |
AR083140A1 (es) | 2013-02-06 |
US8861778B2 (en) | 2014-10-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2682655B1 (fr) | Electrovanne du type à noyau plat et ressort plat | |
EP2577992B1 (fr) | Haut-parleur acoustique | |
EP1915763B1 (fr) | Actionneur électromagnétique comportant un tube magnétique et destiné a actionner une vanne hydraulique ou pneumatique | |
FR2682542A1 (fr) | Actionneur electromagnetique comportant une structure statorique a trois poles de longueurs differentes et distributeurs pneumatiques mettant en óoeuvre de tels actionneurs. | |
EP3304706A1 (fr) | Machine électrique tournante avec un stator à encoches fermées et plus particulièrement machine électrique synchrone à réluctance variable assistée d'aimants permanents | |
EP2177047A1 (fr) | Transducteur electrodynamique, notamment du type haut-parleur, a suspension ferrofluide et dispositifs associes | |
CA2687070A1 (fr) | Actionneur electromagnetique a reluctance variable | |
EP2534851B1 (fr) | Moteur magnetique de transducteur electrodynamique | |
WO2003069953A1 (fr) | Moteur electrodynamique a bobine mobile notamment pour haut-parleur, haut-parleur et piece polaire adaptee | |
FR3087855A1 (fr) | Un turbocompresseur centrifuge ayant un trajet de flux de gaz comportant une chambre de detente | |
WO2012107682A1 (fr) | Dispositif de moteur magnétique de transducteur électrodynamique | |
EP2534852A1 (fr) | Structure de transducteur electrodynamique et son procede de fabrication | |
EP3602758B1 (fr) | Actionneur lineaire presentant deux mobiles independants et une configuration optimisee d'aimants permanents | |
EP2392151B1 (fr) | Équipage mobile et transducteur électrodynamique pourvu d'un tel équipage mobile | |
EP0736882A1 (fr) | Dispositif de commande à électroaimant à noyau sans frottement et application aux vannes à commande continue | |
FR3067201A1 (fr) | Haut-parleur electrodynamique comportant des fils d'alimentation electrique internes par rapport au porte-bobine | |
EP1237394A1 (fr) | Circuit magnétique pour haut-parleur éléctrodynamique | |
WO2018229242A1 (fr) | Haut-parleur | |
FR2989511A1 (fr) | Actionneur electromagnetique a aimant permanent. | |
FR2668646A1 (fr) | Procede de fabrication d'un actionneur electromagnetique et actionneur ainsi realise. | |
EP0228964A1 (fr) | Electro-aimant à bobines toriques concentriques | |
FR3020894A1 (fr) | Systeme d'au moins un electroaimant a bords d'entrefer non plans | |
FR2997546A1 (fr) | Actionneur electromagnetique lineaire | |
FR2996696A1 (fr) | Culasse de stator et procede d'assemblage correspondant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120711 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LEMARQUAND, GUY Inventor name: PETEUL-BROUILLET, CLAIRE Inventor name: GUYADER, GAEL Inventor name: REMY, MATHIAS |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20141219 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20150903 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 774146 Country of ref document: AT Kind code of ref document: T Effective date: 20160215 Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602011023084 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D Ref country code: NL Ref legal event code: MP Effective date: 20160203 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 774146 Country of ref document: AT Kind code of ref document: T Effective date: 20160203 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160504 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160503 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160229 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160603 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160603 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160229 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160229 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602011023084 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20161104 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160209 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160503 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20110209 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160209 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160203 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20220223 Year of fee payment: 12 Ref country code: DE Payment date: 20220217 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20220128 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602011023084 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20230209 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230209 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230209 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230228 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230901 |