Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating [HVAC] devices
  • B60H1/00457—Ventilation unit, e.g. combined with a radiator
  • B60H1/00471—The ventilator being of the radial type, i.e. with radial expulsion of the air
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K1/00—Details of the magnetic circuit
  • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
  • H02K1/22—Rotating parts of the magnetic circuit
  • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
  • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
  • F04D25/00—Pumping installations or systems
  • F04D25/02—Units comprising pumps and their driving means
  • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
  • F04D25/00—Pumping installations or systems
  • F04D25/02—Units comprising pumps and their driving means
  • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
  • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
  • F04D29/00—Details, component parts, or accessories
  • F04D29/40—Casings; Connections of working fluid
  • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
  • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
  • F04D29/4226—Fan casings
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K1/00—Details of the magnetic circuit
  • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
  • H02K1/22—Rotating parts of the magnetic circuit
  • H02K1/27—Rotor cores with permanent magnets
  • H02K1/2786—Outer rotors
  • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
  • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
  • H02K1/2791—Surface mounted magnets; Inset magnets
• • 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
  • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
  • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Definitions

• This description relates to an outer rotor cup for a fan motor of a motor vehicle heating, ventilation and / or air conditioning installation.
• the present description also relates to a motor comprising such a cup and to a fan comprising such a motor.
• a heating, ventilation and / or air conditioning installation which makes it possible to generate an air flow.
• Such an installation makes it possible to manage the temperature and the distribution within the passenger compartment of the vehicles of the air flow created.
• a heating, ventilation and / or air conditioning installation comprises, inter alia, a fan comprising a fan wheel driven in rotation by an electric motor.
• the electric motor is in particular electronically commutated, driven by a power supply module.
• An electronically commutated electric motor, or brushless direct current motor (also known by the English name of "brushless”), comprises a rotor and stator assembly, each of these components carrying electromagnetic elements including the interaction generates the displacement of the rotor relative to the stator, and further the displacement of the fan wheel.
• the electric motor conventionally comprises an external rotor, an internal stator, fixed to a support of the electric motor.
• the outer rotor comprises in particular a metal cup (or carcass, from the English “yoke”), with a cylindrical outer edge inside which magnets are fixed, so as to surround the rotor winding.
• the dish conventionally has a portion cylindrical, radially internal, receiving the output shaft of the rotor. Between the radially inner cylindrical portion and the radially outer cylindrical portion, the cup conventionally forms a generally planar portion.
• An object of the present description is to provide a rotor cup not having at least some of the aforementioned drawbacks.
• a rotor cup for an external rotor motor in particular for a motor-fan unit intended to equip a heating, ventilation or air conditioning installation of a motor vehicle, the rotor cup being at symmetry of revolution about an axis of symmetry, the rotor cup comprising:
• the third portion extends between a first radially inner point and a second radially outer point, the straight line connecting the first and second points forming with the axis of symmetry of the rotor cup, an angle between 65 ° and 80 °, the ratio between the distance between the first point and the axis of symmetry of the rotor cup, of a on the one hand, and the radius of the second cylindrical portion, on the other hand, being between 0.04 and 0.32, the ratio between the distance between the second point and the axis of symmetry of the rotor cup, d ' on the one hand, and the radius of the second cylindrical portion, on the other hand, being between 0.65 and 1.0.
• the rotor cup has a majority portion of generally frustoconical shape, which improves the rigidity of the cup. rotor.
• the angle at the top of the frustoconical portion is however chosen to limit the axial size of the rotor cup.
• the rotor cup has one or more of the following characteristics, taken alone or in combination:
• the rotor cup comprises a fourth, annular portion, between the first portion and the third portion, substantially normal to the axis of symmetry of the rotor cup, the ratio between the internal radius of the fourth portion and the radius of the second cylindrical portion preferably being between 0.05 and 0.24 and / or the ratio between the outer radius of the fourth portion and the radius of the second cylindrical portion preferably being between 0.15 and 0.30;
• the fourth portion forms a recess relative to the third portion
• the third portion is tapered or flared
• the rotor cup preferably comprising a prime number of arms, greater than or equal to seven;
• the openings are trapezoidal or bullet-shaped
• the arms are "Y" shaped
• the rotor cup is made of metal, the rotor cup preferably having a thickness less than or equal to 3 mm, more preferably less than or equal to 2 mm, even more preferably of thickness equal to 1, 6 mm;
• the rotor cup comprises, in sectional view, an elbow between the first portion, on the one hand, and the third portion or the fourth portion, where appropriate, on the other hand, the thickness of the elbow being greater than l 'thickness of the first portion, the ratio between the thickness of the bend and the thickness of the first portion preferably being greater than or equal to 1, 3 and / or less than or equal to 1, 6;
• the first cylindrical portion extends over a height, measured along the direction of the axis of symmetry of the cup, such that the ratio between the height of the first cylindrical portion and the diameter of the first cylindrical portion is between 0 , 80 and 0.98;
• the second cylindrical portion extends over a height, measured in the direction of the axis of symmetry of the cup, the ratio between the height of the second cylindrical portion and the radius of the second cylindrical portion being between 0.30 and 0.60.
• an external rotor motor for a motor vehicle heating, ventilation or air conditioning installation comprising a stator with a winding, a rotor comprising a rotor cup as described above, in all its combinations, magnets being fixed on the second cylindrical portion of the rotor cup, the magnets being disposed radially on the outside with respect to the stator winding.
• a fan for a motor vehicle heating, ventilation or air conditioning installation comprising a motor as described above, in all its combinations, a shaft integral with the rotor cup , and a fan wheel attached to the shaft to be rotated.
• FIG. 1 shows schematically in perspective a fan device
• FIG. 2 is a schematic perspective view of an example of a motor which can be implemented in the fan device of FIG. 1;
• FIG. 3 is a schematic view from a different perspective, of the example engine of Figure 2;
• FIG. 4 is a perspective view of a rotor support implemented in the engine of Figures 2 and 3;
• FIG. 5 is a perspective view from below of the engine of Figures 2 and 3, in which the engine cover has been removed;
• FIG. 6 is a perspective view from below of the fan device of FIG. 1; [0019] [Fig. 7] schematically illustrates the outer face of the engine cover of Figures 2 and 3; and
• FIG. 8 schematically shows in perspective a first example of a rotor cup which can be used in the motor of FIGS. 2 and 3;
• FIG. 9 shows schematically in section the first example of the rotor cup of Figure 8 attached to the motor rotor shaft
• FIG. 10 schematically shows in perspective a variant of the first example of a rotor cup which can be used in the engine of FIGS. 2 and 3;
• FIG. 11 schematically shows in section a second example of a rotor cup which can be used in the motor of FIGS. 2 and 3.
• Figure 1 illustrates a fan device 10 for a vehicle ventilation installation.
• the fan device 10 essentially comprises, as illustrated, a fan wheel 12, an electric motor 14, and a support 16 for the electric motor 14.
• the fan wheel 12 rotates about an axis of rotation A
• the electric motor 14 is intended to drive in rotation around its axis A, the fan wheel 12.
• the support 16 of the motor 14 is intended to allow the fixing of the fan device 10 in a motor vehicle, by limiting the transmission of vibrations generated by the electric motor 14 and / or the fan wheel 12 in the motor vehicle and / or external stresses towards the electric motor 14 and / or the fan wheel 12.
• the support 16 of the motor 14 can in particular comprise two rings coaxial, with an axis the axis A of rotation of the fan wheel 12, interconnected by the elastomeric material.
• the elastomeric material can form a decoupling ring between the inner ring and the outer ring.
• the inner ring may be intended to be fixed to the motor 14.
• the outer ring may be intended to be fixed to a structural element, in particular of a vehicle ventilation installation.
• the elastomeric material is, for example, polystyrene-b-poly (ethylene-butylene) -b-polystyrene or SEBS.
• the electric motor 14 here forms a mechanical assembly comprising a rotating element 18, in this case the rotor 18 of the motor 14, a support 20 of the rotor 18 and a cover 22, fixed on the support 20 of the rotor 18.
• the cover 22 is fixed on the support 20 of the rotor 18 by means of screws 24.
• other fixing means can be implemented to fix the cover 22 on the support 20 of the rotor 18.
• the rotor 18 is here an external rotor.
• the stator 26 associated with the rotor 18 is disposed radially inside the rotor 18. More precisely, the magnets 27 of the rotor 18 are radially outward with respect to the winding of the stator 26.
• the rotor 18 has the shape of a perforated cup 28, fixed to a shaft 30.
• the fan wheel 12 is here fixed directly to the shaft 30.
• the magnets 27 of the rotor 18 are here fixed to the internal face of the cup 28, on a cylindrical strip 32 formed by cup 28.
• the support 20 is for example made of an aluminum alloy or a plastic material loaded with metal particles.
• the support 20 of the rotor 18 here has a base 34.
• the base 34 here extends generally in a plane normal to the axis A of rotation of the motor 14.
• a substantially cylindrical relief 36 extends from the base 34.
• the relief 36 extends substantially in the direction of the axis A of rotation of the motor 14.
• the relief 36 is hollow.
• the relief 36 may in particular form one or two housings 38 each receiving a rolling ring, in particular a ball bearing, intended to guide the rotation of the shaft 30 relative to the support 20.
• a first housing is formed at the level of the free end of the relief 36 and a second housing is formed in the relief 36, substantially at the level of the base 34. A ball bearing is received in each of these housings.
• the base 34 forms on its surface opposite the cylindrical relief 36, a recess 40 receiving a printed circuit board 42 (or electronic card) for controlling the motor 14.
• the recess 40 may be surrounded by a protruding rim 41.
• Various mechatronic components 44, 46 are fixed to the printed circuit board 42.
• mechanical devices 44 make it possible to connect tabs integral with the coils of the stator 26 to the printed circuit board 42. The power supply of these coils via these tabs , can then allow the control of the electric motor 14.
• the larger components 46, in particular the capacitors can also be fixed on the printed circuit board 42, preferably in the vicinity of the edges of the printed circuit board 42.
• a connector 48 is also connected to the printed circuit board 42.
• the connector 48 provides power to the printed circuit board 42 and, therefore, to the motor 14.
• the cover 22 is fixed on the base 34 of the support 20.
• the cover 22 defines here, with the recess 40 in the base 34, a housing for receiving the printed circuit board 42.
• the cover 22 here comprises an edge 50, substantially plane, extending along a plane normal to the axis A of rotation of the motor 14.
• the edge 50 has holes 51 allowing the cover 22 to be attached to the base 34 of the support 20, at the screw means 24.
• the cover 22 also comprises a bottom 52, distant from the edge 50, in the direction of the axis A of rotation of the motor 14.
• the bottom 52 is here substantially flat.
• the bottom 52 extends substantially along a plane, normal to the axis A of rotation of the motor 14.
• the bottom 52 of the cover 22 is here substantially parallel to the base 34 of the support 20.
• the bottom 52 of the cover 22 is also substantially parallel to the printed circuit board 42.
• the cover 22 is for example made of aluminum alloy or plastic loaded with conductive particles, in particular plastic loaded with metal particles.
• the cover 22 illustrated comprises bosses 54, 56 peripheral. These bosses 54, 56 allow the reception of the electronic devices 46, the largest, in particular the highest in the direction of the axis A of rotation of the motor 14.
• the cover 22 also has a flat surface 53, closer to the edge 50 than the bottom 52, in the direction of the axis A of rotation of the motor 14 .
• the cover 22 and the printed circuit board 42 may each have a through opening 60, 62 facing the shaft 30 of the rotor 18. These openings 60, 62 can allow passage a counter-bearing for the shaft 30, allowing the wheel 12 to be fitted onto the shaft 30.
• the opening 60 in the cover can then be closed, in particular by means of a sticker. This protects the printed circuit board 42 from humidity in the ambient air.
• a first example of cup 28 is illustrated in Figures 8 and 9.
• the cup 28 is of rotational symmetry, around an axis A of symmetry corresponding to the axis of rotation of the cup 28 and of the motor 14.
• the cup 28 essentially comprises a first cylindrical portion 68, radially inner and a second cylindrical portion 32, radially outer.
• the second cylindrical portion 32 corresponds to the cylindrical strip 32 described above, on which the magnets 27 of the rotor 18 are fixed.
• the magnets 27 are fixed on the radially inner face of the second cylindrical portion 32.
• the first cylindrical portion 68 extends over a height h68, measured in the direction of the axis A of symmetry of the cup 28.
• the height h68 of the first portion 68 may be such that the ratio between the height h68 of the first cylindrical portion 68 and the radius R32 of the second cylindrical portion 32 is between 0.8 and 0.98.
• Such a range is particularly advantageous in the case where the shaft 30 is force-fitted into the first portion 68.
• the shaft 30 can be fixed to the cup 28 by welding.
• the height h68 of the first portion can be significantly reduced, in particular close to 0.
• the first cylindrical portion 68 receives the shaft 30 of the motor 14.
• the shaft 30 is for example force-fitted into this first cylindrical portion 68.
• the shaft 30 can be welded to the first cylindrical portion 68.
• the second cylindrical portion 32 extends over a height h32, measured in the direction of the axis A of symmetry of the cup 28, such that the ratio between the height h32 of the second cylindrical portion 32 and the radius R32 of the second cylindrical portion 32 is between 0.30 and 0.60.
• the cup 28 comprises a third portion 70 such that, seen in section, the third portion 70 extends between a first point P1, radially inside, and a second point P2, radially outside, the straight line connecting the first and second points P1, P2 forming with the axis A of symmetry of the cup 28, an angle a between 65 ° and 80 °.
• the third portion 70 of the cup 28 is generally frustoconical in shape, which helps to stiffen the cup 28.
• the angle at the center of this third portion 70 is however limited, in order to limit the axial bulk of the cup 28.
• the third portion 70 is frustoconical, the third portion 70 extending, in section, substantially along the straight line connecting the first and second points P1, P2.
• the ratio between the distance RPI between the first point P1 and the axis A of symmetry of the cup 28, on the one hand, and the radius R32 of the second cylindrical portion 32, of on the other hand is between 0.04 and 0.32. Furthermore, the ratio between the distance RP2 between the second point P2 and the axis A of symmetry of the cup 28, on the one hand, and the radius R32 of the second cylindrical portion 32, on the other hand, being between 0.65 and 1.0.
• the third portion 70 of generally frustoconical shape, extends over the majority of the surface of the cup 28, ensuring the rigidity of this cup 28. It should be noted here that the radius R32 of the second portion 32 is the outer radius of the rotor cup 28.
• the third portion 70 has, in the example illustrated in Figures 8 and 9, openings 72 separated by arms 74.
• the cup 28 comprises seven arms 74, separating seven openings 72. More generally, for limit the risks of the appearance of eigen modes of the cup 28 at relatively low frequencies, the cup 28 advantageously comprises a prime number of arms 74. This number of arms is preferably greater than or equal to seven.
• the openings 72 make it possible to reduce again the weight of the cup 28.
• the openings 72 also make it possible to facilitate the cooling of the coils of the stator received inside the cup 28.
• the arms 74 may be of substantially trapezoidal shape.
• the arms 74 define openings 72 which are also trapezoidal.
• each arm 74 has a minimum width I74, measured in an orthoradial direction with respect to the axis A of symmetry of the cup 28, such that the ratio of this minimum width I74 to the radius R32 of the second cylindrical portion 32 is between 0.08 and 0.30.
• Each arm 74 also has a maximum width L74, measured in an orthoradial direction with respect to the axis A of symmetry of the cup 28, such that the ratio of this maximum width L74 to the radius R32 of the second cylindrical portion 32 is included between 0.08 and 0.45.
• the maximum width L74 of an arm 74 is measured at the radially outside end of the arm 74 considered, while the minimum width I74 is measured at the radially inside end of the arm 74 considered.
• the cup 28 further comprises a fourth portion 76, annular.
• the fourth portion 76 here forms a recess relative to the end, radially internal, of the third portion 70 and to the first cylindrical portion 68.
• the fourth portion 76 is located radially between the first portion 68 and the third portion 70.
• the fourth portion 76 is here normal to the axis A of symmetry of cup 28.
• the ratio between the internal radius R76i of the fourth portion 76 and the radius R32 of the second portion 32 is for example between 0.05 and 0, 24.
• the relationship between the outer radius R76e of the fourth portion 76 and the radius R32 of the second portion 32 is for example between 0.15 and 0.30.
• this fourth annular portion 76 is of reduced area.
• This fourth portion 76 forming a recess, makes it possible to further stiffen the cup 28.
• the fourth portion 76 is for example connected to the first cylindrical portion 68 by an elbow.
• the fourth portion 76 is here adjacent to the third frustoconical portion 70.
• the cup 28 of Figures 8 and 9 further comprises a fifth portion 78, flared, between the second portion 32 and the third portion 70. More specifically, in section, the fifth portion 78 forms an elbow.
• the fifth portion 78 is here adjacent to the third frustoconical portion 70, on the one hand, and to the second cylindrical portion 32, on the other hand. This fifth portion 78, forming an elbow, also makes it possible to stiffen the cup 28.
• the cup 28 is formed by the first, second, third, fourth and fifth portions 68, 32, 70, 76, 78 and, optionally, the elbow connecting the first portion 68 to the fourth portion 76.
• the cup 28 is here made of metal.
• the cup 28 preferably has a thickness less than or equal to 3 mm, more preferably less than or equal to 2 mm, more preferably a thickness equal to 1.6 mm. This limits the weight of the cup 28.
• the cup Between the first portion 68 and the fourth portion 76, the cup here forms an elbow.
• the bend may be of thickness e2, greater than the thickness e1 of the first portion 68.
• the ratio between the thickness e2 and the thickness e1 may in particular be greater than or equal to 1, 3 and / or less than or equal to 1, 6.
• a thicker bend strengthens the cup 28.
• the thickness e1 is equal to 1.8 mm.
• the maximum thickness e2 of the bend can be equal to 2.8 mm.
• Figure 10 illustrates a variant of the cup 28 of Figures 8 and 9.
• This variant differs from the cup 28 of Figures 8 and 9 firstly by the shape of the arms 74 in "Y" comprising a trunk 74i dividing into two branches 742, 743, here identical, in the vicinity of its radially inner end.
• the trunk of each arm 74 has a width 174i, measured in an orthoradial direction with respect to the axis A of symmetry of the cup 28, such that the ratio of this width I74i on the radius R32 of the second cylindrical portion 32 is between 0.08 and 0.22.
• Each branch 742, 743 also has a width 1742, measured in an orthoradial direction with respect to the axis A of symmetry of the cup 28, such that the ratio of this width 1742 to the radius R32 of the second cylindrical portion 32 is included between 0.04 and 0.12.
• the openings 72 here have the shape of an ogive, with a rounded radially inner end.
• the width L72 of the openings 72, at their radially outer end, measured in an orthoradial direction, is such that the ratio between this width L72 over the radius R32 of the second cylindrical portion 32 is between 0.4 and 0.9.
• each day 80 is of significantly reduced area compared to the openings 72.
• the days 80 also have the shape of an ogive, oriented in a direction opposite to the openings 72. In other words, the rounded end of the openings 80 is here oriented radially outwards.
• FIG. 11 illustrates a second example of a cup 28.
• This second example of a cup preferably comprises a first cylindrical portion 68, a second cylindrical portion 32 32, a third portion 70, extending between the first 68 and the second portion 32, and, here , a bend between the first portion 68 and the third portion 70.
• the third portion 70 is adjacent to the second portion 32.
• the third portion 70 is such that, seen in cross section, the third portion 70 extends between a first point P1, radially inside, and a second point P2, radially outside, the line connecting the first and second points P1, P2 forming with the axis A of symmetry of the cup 28, an angle a between 65 ° and 80 °.
• the third portion 70 of the cup 28 is generally frustoconical, which helps to stiffen the cup 28.
• the angle at the center of this third portion 70 is however limited, to limit the axial bulk of the cup 28.
• the third portion 70 is here flared towards the second cylindrical portion 32. More particularly, the third portion 70 appears concave. In other words, the third portion 70 is, seen in section, located under the straight line connecting the end points P1, P2 of the third portion 70. In other words, the segment connecting the end points P1, P2 of the third portion 70 is not included in the cup 28.
• the third portion 70 of the second example of cup 28 of Figure 11 has arms 74 in the shape of "Y", like those described above with reference to Figure 10.
• the second example of cup 28 may have trapezoidal arms 74, as described with reference to FIG. 8. Only the shape, seen in section, of the arms 74 differs in the second example of cup 28 of FIG. 11.
• the cup 28 has an elbow between the first portion 68 and the third portion 70.
• the elbow may be of thickness e2, greater than the thickness e1 of the first portion 68.
• the ratio between the thickness e2 and thickness e1 may in particular be greater than or equal to 1, 3 and / or less than or equal to 1, 6.
• a thicker bend strengthens the cup 28.
• the thickness e1 is equal to 1.8 mm.
• the maximum thickness e2 of the bend can be equal to 2.8 mm.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Air-Conditioning For Vehicles (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69811284

Family Applications (1)

Country Status (5)

Family Cites Families (8)

• 2019
  • 2019-12-18 FR FR1914932A patent/FR3105635B1/fr active Active
• 2020
  • 2020-12-07 EP EP20841983.8A patent/EP4078773A1/de active Pending
  • 2020-12-07 CN CN202080088895.2A patent/CN114830495A/zh active Pending
  • 2020-12-07 US US17/786,866 patent/US20230023583A1/en active Pending
  • 2020-12-07 WO PCT/FR2020/052294 patent/WO2021123548A1/fr unknown

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