• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An air delivery device according to the invention comprises an electric motor (2) comprising a rotor and a stator (14). The stator has teeth arranged so that a passage zone (30) for the winding of a coil is formed between two adjacent teeth. The stator is in contact with a support means of the electric motor, metallic and electrically connected to an electrical ground. At least one screen (50) is electrically connected to the support means, said at least one screen comprising closure means (62, 68) which extend axially to fill at least one of said passage zones between two teeth of the stator (14). ).
    公开号:FR3039723A1
    申请号:FR1557179
    申请日:2015-07-28
    公开日:2017-02-03
    发明作者:Geoffroy Capoulun；Alain Farkh
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    ELECTRONICALLY SWITCHED ELECTRIC MOTOR AND CORRESPONDING AIR PULSE DEVICE
    The present invention relates to the field of electric motors, and in particular to that of motors with electronic commutation. More specifically, the invention relates to air supply devices in motor vehicles comprising such electric motors.
    An air supply device equipped with an electric motor according to the invention is, for example, used in a ventilation system, heating and / or air conditioning of a motor vehicle.
    Electronically commutated electric motors, or brushless DC motors (also known under the name of "brushless"), comprise a rotor and stator assembly, each of these components carrying electromagnetic elements whose interaction generates the displacement of the rotor relative to the stator. The rotor and the stator are mounted independently of one another in said motor, and it should be ensured that the relative positioning of these two components is correct for optimum operation of the motor. In addition, the current switching in the stator coils generates electromagnetic waves which can disturb the operation of other electronic devices arranged nearby.
    The present invention is in this context and aims to provide an electric motor and an associated air pulse device that limit the propagation of electromagnetic waves out of the air pulse device.
    By air delivery device is meant a device for sucking and / or blowing air.
    An air delivery device comprises an electronically commutated electric motor, which includes a rotor and a stator. The electric motor may in particular comprise a ventilation wheel driven in rotation by an output shaft of the engine, and the rotor, adapted to rotate around the stator, may in particular be integral in rotation with the output shaft.
    The stator has a plurality of teeth arranged radially in a star around a longitudinal axis so that a passage zone for the winding of a magnetic coil around each of the teeth is formed between two adjacent teeth.
    According to the invention, the stator is in contact with a support means of the electric motor, said support means being metallic and electrically connected to an electrical ground. In addition, at least one screen is electrically connected to the support means, said at least one screen comprising closure means which extend along the longitudinal axis to fill at least one of said passage zones between two teeth of the stator.
    This arrangement allows the formation of a conductive enclosure connected to the electrical ground, and thus maintained at a fixed potential, so as to form an electromagnetic shield capable of confining the electric field created by current switching in the stator coils.
    According to a first series of characteristics, taken alone or in combination, it can be provided that: the screen extends transversely between the rotor and the stator; the screen extends over the entire surface of the stator; - The screen has a substantially flat annular shape, which can in particular be drilled in its center to be traversed by the motor output shaft; - The closure means comprise tabs extending substantially perpendicular to the edge defining the periphery of said screen; the tabs extend over a height substantially equal to the height of the passage zones of the stator; the legs are regularly arranged all around the screen; the number of tabs on the screen is equal to the number of passage zones on the stator; - the screen is fixed on the stator.
    Advantageously, the screen as described above is a first screen forming part of a cover of the stator further comprising a second screen arranged on the stator cover on the axial side of the stator opposite to the side covered by said first screen, between said stator and the support means, said second screen being also electrically connected to the support means and to the electrical ground.
    In this context, it can be provided that: the second screen extends transversely to the motor output shaft; the second screen extends over the entire surface of the stator; - The second screen has a substantially flat annular shape, which can in particular be drilled in its center to be traversed by the motor output shaft; the closure means extend substantially perpendicularly the edge delimiting the periphery of the second screen; the second screen is fixed on the stator; the second screen extends axially between the stator and said support means; the second screen extends substantially in the extension of the plates borne at the periphery of said stator; the second screen has an annular ring shape; - The closing means extend substantially axially in the continuity of the wall forming said annular ring; the second screen is fixed on the support means; the closure means are carried by the first screen and by the second screen; either the closure means carried by the first screen extend opposite closure means carried by the second screen, said closure means extending over an axial dimension slightly less than half the axial dimension of the stator; either the two screens are arranged relative to the stator so that the passage zones between the stator teeth are filled alternately by a closure means carried by the first screen and by a closure means carried by the second screen, said closure means extending over an axial dimension substantially equal to the axial dimension of the stator; the two screens have common grounding means; - The common ground means are formed by at least one fastening screw passing through the stator, in contact with at least the second screen and the first screen, to engage in the support means; the first screen and / or the second screen are made of an electrically conductive material, which may be an example of aluminum; the output shaft of the motor is rotatably mounted inside the support means by means of rolling bearings; - In the case where said support means has the shape of a plate and in particular a barrel disposed projecting from the plate and around which can be mounted the stator, the plate of the support means forms a heat sink carrying a card control electronics, in particular the power supply of the stator coils; - The rotor, arranged around the stator, carries at least one permanent magnet whose interaction with said current-fed coils generates a rotational movement of the rotor around the stator. The invention also relates to a heating, ventilation and / or air conditioning system of a motor vehicle comprising at least one air-blowing device as described above. Other features and advantages of the invention will appear on reading the detailed description of an embodiment which follows and for the understanding of which reference will be made to the appended drawings in which: FIG. 1 is an exploded representation in perspective of an air supply device according to the invention; FIG. 2 diagrammatically illustrates an air-blower device comprising, according to the invention, means for axial confinement of the electromagnetic radiations and means for closing passage zones between the teeth of the stator visible in FIG. 1; FIG. 3 is a perspective view of a stator equipping an electric motor in an air delivery device according to the invention, and a screen forming an axial confinement means, said screen carrying closure means according to FIG. invention capable of being housed in the passage zones between the teeth of the stator; - Figure 4 is a view similar to that of Figure 3 in which the screen has been assembled on the stator, the closing means being housed in the passage zones between the teeth of the stator; - Figure 5 schematically illustrates an air supply device comprising, according to a particular embodiment of the invention axial containment means with two screens, arranged on either side of the stator; FIG. 6 is a perspective view of a stator and two-screen axial confinement means, according to FIG. 5; FIG. 7 schematically illustrates an air-blast device comprising two-screen axial confinement means for these same radiations according to an alternative embodiment, and FIGS. 8 and 9 are representations of elements forming the stator. an air pumping device, namely a sheet (Figure 8) and a casing overmolded on a stack of these sheets (Figure 9).
    An air supply device 1, which makes it possible to suck and blow air, comprises at least one electronically commutated electric motor 2, which may in particular be able to drive in rotation a ventilation wheel 4, of here with fins 6, via an output shaft 8 of the electric motor. The device may further comprise at least one support means 10 incorporating several functions among which the support of the electric motor 2, the cooling of the components of said device and the support of an electronic control card 12 of said electric motor.
    The electric motor mainly comprises an inductor stator 14 and an induced rotor 16 carrying the output shaft 8 adapted to drive the ventilation wheel 4. The stator 14 is secured to the support means 10 of the electric motor, and the rotor 16 is arranged around the stator 14 to be rotated under the effect of the magnetic fields generated by the winding and the magnets associated with the rotor and the stator.
    The stator 14 has a shape of revolution about a main longitudinal axis, substantially parallel to the axis of rotation of the rotor. The stator comprises a stack of sheets 17 (a sheet being visible in FIG. 8) and a casing 18 coming to cover the latter, said casing being made of plastics material. The plates 17 of the stator are stacked along the main axis of revolution, each plate of sheet capable of being stacked having the shape of branches 19 arranged in a star around a central ring and extended at their free end by a bar 20 perpendicular to said branch.
    The casing 18 of the stator, seen in detail in FIG. 9, is formed of two shells attached on either side of the stack of laminations and each having an annular central wall which delimits the contour of an internal bore 21, and whose outer face is extended by a plurality of teeth 22 arranged radially in a star. It is understood that the housing is overmoulded on the stack of sheets so that the housing teeth cover the branches of the sheets, the bars of the sheets protruding at the free radial end of the teeth. The stator 14 comprises an excitation winding composed of several phases, each comprising at least one winding of wire 26, whose outputs are electrically connected to supply means here not shown (only the connection means 28 being visible in particular on Figure 3).
    In a particular embodiment, the stator comprises twelve teeth wound in three-phase. The winding of wire is made around the teeth, each tooth carrying a winding element. And as illustrated, the stacks of sheets 17 opening at the free radial end of the housing are sized to provide a passage area 30 between each of the teeth 22 adapted to leave room for the winding of the wire around the teeth .
    The rotor 16 has a bell shape, with an annular ring 32 and a closure wall 34 disposed at one end of said ring. The closure wall can take a flat shape substantially perpendicular to the axis of the crown or a curved shape in clearance of the crown, and it carries at its center the motor output shaft 8.
    The ring 32 has a larger diameter than the outer diameter of the stator, so that the rotor can come into recovery of the stator. The ring has an inner face which is turned towards the stator in this covering position, and at least one permanent magnet 36 is disposed on this inner face of the rotor ring.
    When the motor is assembled, the stator 14 is disposed in the body of the rotor 16 delimited by the ring 32. The rotor and the stator are thus arranged so that the permanent magnet 36 carried by the rotor 16 is constantly arranged in the magnetic field generated by the coils of the stator 14 when they are fed with current, so as to generate a rotational movement of the rotor around the stator.
    In the air supply device 1 comprising the electric motor 2 according to the invention, the stator 14 and the rotor 16 are arranged so that the closure wall 34 of the rotor is turned towards the ventilation wheel 4 and that the stator 14 is disposed facing the support means 10. The latter here has the shape of a plate 38 and a shaft 40 disposed projecting from the plate and having an internal channel 42 opening substantially in the center of the plate, and this means support is fixed relative to the vehicle structure, here via a frame 44 shown in Figure 1.
    The plate 38 extends in a plane substantially perpendicular to the axis of revolution of the internal channel of the barrel 40. The barrel, substantially cylindrical, is adapted to be housed in the internal bore 21 of the stator 14 and to receive the shaft motor output 8 secured to the rotor 16, so that it is understood that the support means 10 ensures the correct positioning of the rotor 16 relative to the stator 14. It can be seen in Figures 1, 2, 5 and 7 that the barrel 40 and the plate 38 form a single piece, it being understood that the support means is monobloc since the separation of the drum and the plate causes destruction of one or the other of these components. The plate 38 has in the figures a disc shape, but it is understood that it can take other forms, for example rectangular, square, elliptical, etc.
    The plate 38 of the support means forms a heat sink carrying an electronic control card 12, in particular the power supply of the stator coils. The electronic control board is disposed on the face of the plate 38 facing away from the shaft 40.
    Preferably, the support means 10 is made of metal and it can be thermally coupled to the device by means of a thermal paste. Thus, the plate 38 acting as heat sink can effectively cool the electronic member by thermal conduction. In addition, the fact that the support means is made of metal and connected to the mass of the electronic member to block electromagnetic radiation emitted by the electronic member, these radiation can disrupt the operation of the electric motor. In addition, the fact that the support means is made of metal makes it possible to connect the stator 14 to ground via the support means 10. In fact, the plate 38 of the support means 10 is fixed with respect to the structure of the vehicle, via here the frame 44, so that the support means is considered to be electrically connected to the earth. Preferably, the support means is made of aluminum, so that one associates for this part of the characteristics of lightness and good thermal conduction.
    As is particularly visible in Figures 2, 5 and 7, the stator 14 is fixed on the support means 10 and the rotor 16 is arranged to rotate around the stator 14. In particular, the stator is arranged around the barrel 40, being in contact with the outer face of the drum, while the rotor 16 is received, via the output shaft 8 which it is secured, in the inner channel 42 of the drum. The power supply of the coil leads creates magnetic fields, which force the rotation of the driven rotor under the effect of the permanent magnet 36 that it carries. This results in a drive of the output shaft 8 of the motor as shown is carried by the rotor 16 and which is rotatably mounted within the barrel 40 of the support means by means of bearings.
    Two bearings 46, 48 are inserted in the support means 10 to serve as a rotation guide to the output shaft 8 of the motor which is furthermore rotated by the rotor 16. These bearings may be ball bearings, as illustrated schematically, but it will be understood that they could take the form of roller bearings, needles, or other ...
    The ventilation wheel 4 of the air-blower device 1 is made integral with the free end of the output shaft 8 of the motor which extends opposite the stator 14 and the support means 10, and it comprises , disposed at its periphery, a plurality of fins 6. The rotation of the rotor rotates the wheel which contributes to producing pulsed air through the fins.
    It is particularly notable according to the invention that the electric motor 2 formed by the rotor 16 and the stator 14 further comprises containment means to prevent the propagation of electromagnetic radiation outside the engine and the air pulse device .
    In particular the motor comprises radial confinement means, that is to say means for limiting the propagation of these electromagnetic radiation substantially perpendicular to the longitudinal axis of the output shaft of the engine.
    The inner face of the central annular wall of said stator is in contact with the barrel 40 arranged in projection of the plate 38, it being understood that the one-piece piece formed by the barrel 40 and the plate 38 is metallic and connected to an electrical ground. As a result, the metal sheets 17 are brought to the electrical ground and the bars 20 arranged radially at the free end of the plates form the means for limiting the electromagnetic radiation.
    In order for these radial confinement means to be effective, it is necessary to ensure the correct connection to the electrical earth of the plates 17 and thus to ensure good contact between the stator 14 and the support means 10. For example, it is possible to provide that the internal bore 21 of the stator has a frustoconical shape, and that the outer profile of the barrel 40 of the support means on which the stator 14 is engaged also has a corresponding frustoconical shape. In this way, it ensures a contact on the entire periphery of the barrel during the fitting of the stator on the support means.
    Furthermore, the means for confining electromagnetic radiation according to the invention may be axial confinement means and comprise at least one additional screen made of a conductive material, in particular aluminum, and electrically connected to the ground. In particular, it is possible to provide such a screen on one side or the other of the stator 14, or on both sides.
    In FIGS. 2 and 3, a first screen 50 is disposed transversely to the output shaft 8, between the stator 14 and the rotor 16. In order to form an effective means of confinement, the first screen 50 extends transversely over all the diameter of the stator.
    As illustrated in FIG. 3, provision can be made for the first screen 50 to have a substantially flat annular shape, pierced at its center with a bore 52 to be traversed by the output shaft of the motor which extends between the rotor and the stator and to allow a passage of air necessary for the cooling of the coils of the engine. The first screen 50 may have, in extension of its peripheral edge 54, a regular dropped edge all around the first screen.
    The first screen 50 is fixed on the stator 14. The fastening means provided, by screwing, further allow the grounding of the first screen 50 on the plate 38. It is thus intended to use the fixing screws 56 for the grounding of the first screen 50, this grounding being necessary so that the first screen is able to limit the propagation of electromagnetic radiation. As can be seen in FIG. 2, at least one of the fixing screws 56 for this purpose passes through the stator 14 to engage the other side of the stator, on the plate 38, in a tapped hole 58. electrical screen and its grounding is through the plate 38 metal, the at least one metal fixing screw 56 engaged in the plate, and the contact between the screen and the head of screw.
    In FIGS. 3 and 4, it has been made visible that the first screen 50 may be pierced axially with ventilation orifices 60 distributed circularly and regularly spaced apart from one another. Especially in the illustrated configuration in which the stator 14 and the first screen 50 are arranged so that these ventilation apertures extend to the right of the passage zones 30 and spaces left between the winding teeth of the stator, this allows to cool effectively the electromagnetic means carried by the rotor 16 and the stator 14.
    The first screen 50 advantageously comprises tabs 62 extending substantially perpendicularly to the peripheral edge of the screen. These tabs extend over a height H1, as identified in Figure 3, and they are regularly arranged around the entire periphery of the screen. These tabs 62 form means for closing the passage zones 30 formed in the stator between two adjacent teeth 22. When the first screen is assembled on the stator, the tabs are housed in these passage zones and they are flush with the metal bars 20 projecting from neighboring teeth 22 so as to form a substantially continuous peripheral surface of the stator. The height H1 of the tabs substantially corresponds to the height H2 of the stack of sheets, as identified in FIG. 3, and the width of the tabs is slightly smaller than the width of the passage zones, so that each of the tabs can be inserted in a respective passage area. As many tabs 62 are provided on the screen as there are passage zones 30 on the stator. The closure tabs 62 are advantageously guided and held in place by the shells forming the casing 18 and overmoulded on the stack of sheets, in order to be properly implanted and to completely fill the corresponding passage areas.
    It will be understood that these closure means formed by the tabs improve the radial confinement of the electromagnetic radiation, forming a substantially continuous partition all around the stator, each element of this partition, whether the bars 20 of the stack of plates or tabs 62, being brought to the electrical ground as has been specified above. It is particularly advantageous according to the invention that these means of complementing the radial confinement of electromagnetic radiation are carried by means ensuring the axial confinement of these same radiations.
    A particular embodiment will now be described, particularly with reference to FIGS. 5 to 7, in that two screens are provided to form a more effective cover for the stator. A first screen 64 is arranged on the cover of the stator 14 as previously specified, between the rotor 16 and the stator 14, and a second screen is disposed on the axial side of the stator 14 opposite the side covered by said first screen 64, that is to say between said stator 14 and the plate 38. This second screen is also made of aluminum as the first screen.
    Due to the presence of the plate, this second screen may have several variants. In a first variant, illustrated in FIGS. 5 and 6, the second screen 66 extends transversely to the axis of the motor output shaft and has a shape similar to that of the first screen described above, being its symmetrical compared to the stator. In this way, the second screen 66 extends radially over the entire diameter of the stator, and it comprises second tabs 68 which extend perpendicularly the peripheral edge of the screen. As illustrated in FIG. 5, as many second tabs 68 are provided on the second screen as there are passage zones 30 in the stator. And each of these tabs extends over a height H3, as identified in Figure 6, substantially equal to half the height H2, and it is expected that the tabs 62 of the first screen 50 extend over the same height H3 as the second legs 68 of the second screen. Thus, it will be understood that during assembly of the screens around the stator, a tab 62 of the first screen and a second tab 68 of the second screen come into a passage zone 30, each closing one half of said zone.
    In variant not shown, it could be provided that the tabs 62 of the first screen 50 and the second tabs 68 of the second screen each extend over a height H1 equivalent to the height of the passage zones, and that the number of legs of the first screen, and the number of tabs of the second screen, half that of the stator passage areas, the legs of the first and second screen alternately fill the passage areas 30.
    At least one of the fixing screws 56 allows the grounding, for example at the same substantially zero electrical potential of the plate 38, the first screen 50 and the second screen 66. The presence of two screens makes it possible to ensure a confinement Axial optimal electromagnetic radiation and this can provide radial closure tabs of the stator that are more robust, because lower.
    In a second variant, illustrated in Figure 7, the second screen 70 may extend axially, substantially in the extension of the plates 24 carried at the periphery of said stator 14, the second screen 70 then having an annular ring shape. In this case, it is possible to fix the second screen either on the stator 14 or on the plate 38. The fixing of the second screen 70 on the plate 38 can in particular be done by second fixing screws that cooperate with bores. corresponding threads in secondary drums arranged projecting from the plate around the barrel. Fixing lugs, perpendicularly extending the crown, ensure the fixing of the second screen and the grounding.
    The foregoing description aims to explain how the invention makes it possible to achieve the objectives that it has set itself and in particular to propose an air pumping device which limits the propagation of electromagnetic radiation, by developing means of containment simple to manufacture, easy to assemble and particularly effective. It is notable that a confinement is made possible in all directions, with both radial confinement and axial confinement, the axial confinement means carrying radial containment means complementary to those provided elsewhere. It should be noted that the invention is not limited to air pumping devices according to the embodiments explicitly described with reference to FIGS. 1 to 7. By way of example, it will be possible, without departing from the scope of the invention, modify the shape of the screen as soon as it forms a portion of a box sealingly closing at least one side of the stator.
    权利要求:
    Claims (31)
    [1" id="c-fr-0001]
    An air pumping device comprising an electronically commutated electric motor (2), said motor having a rotor (16) and a stator (14), wherein said stator (14) has a plurality of arranged teeth (22). radially in a star around a longitudinal axis so that a passage zone (30) for the winding of a magnetic coil around each of the teeth is formed between two adjacent teeth, characterized in that: - the stator is in contact with a support means (10) of the electric motor, said support being metallic and electrically connected to an electrical ground, - at least one screen (50, 64, 66, 70) is electrically connected to the support means (10) said at least one screen having closure means (62, 68) extending along the longitudinal axis for filling at least one of said passage areas between two stator teeth,
    [2" id="c-fr-0002]
    An air pumping device according to claim 1, characterized in that said screen (50, 64) extends transversely between the rotor (16) and the stator (14),
    [3" id="c-fr-0003]
    3. Air pumping device according to the preceding claim, characterized in that said screen (50, 64) extends over the entire surface of the stator (14).
    [4" id="c-fr-0004]
    4. Apparatus for supplying air according to one of the preceding claims, characterized in that said screen (50, 64, 66) has a substantially flat annular shape,
    [5" id="c-fr-0005]
    5. Air delivery device according to one of the preceding claims, characterized in that the screen is drilled in the center of a bore (52) to be traversed by an output shaft (8) of the motor.
    [6" id="c-fr-0006]
    6. Apparatus for air delivery according to the preceding claim, characterized in that a ventilation wheel (4) is secured to the free end of the output shaft (8) of the motor which extends to the opposite the stator (14) and the support means (10),
    [7" id="c-fr-0007]
    7. An air delivery device according to one of the preceding claims, characterized in that said closure means comprise tabs (62) extending substantially perpendicular to the edge defining the periphery of said screen (50, 64).
    [8" id="c-fr-0008]
    8. Air pumping device according to the preceding claim, characterized in that the tabs (62) extend over a height substantially equal to the height of the passage zones (30) of the stator (14),
    [9" id="c-fr-0009]
    9. Device for supplying air according to the preceding claim, characterized in that the tabs (62) are regularly arranged all around the screen (50, 64),
    [10" id="c-fr-0010]
    10. Apparatus for air delivery according to the preceding claim, characterized in that the number of tabs (62) on the screen (50, 64) is equal to the number of passage zones (30) on the stator (14) .
    [11" id="c-fr-0011]
    11. Apparatus for air delivery according to one of claims 2 to 10, characterized in that said screen (50, 64) is fixed on the stator (14),
    [12" id="c-fr-0012]
    Air pumping device according to one of the preceding claims, characterized in that said screen is a first screen (64) forming part of a cover of the stator (14) further comprising a second screen (66), arranged on the stator cover on the axial side of the stator opposite to the side covered by said first screen, between said stator and said support means (10), said second screen (66) being also electrically connected to the support means and to the electrical earth.
    [13" id="c-fr-0013]
    13. Air pumping device according to claim 12, characterized in that said second screen (66) extends transversely to a motor output shaft (8).
    [14" id="c-fr-0014]
    14. Air pumping device according to the preceding claim, characterized in that said second screen (66) extends over the entire surface of the stator (14).
    [15" id="c-fr-0015]
    15. Apparatus for air delivery according to one of claims 13 or 14, characterized in that said closing means consist of second legs (68) which extend substantially perpendicular to the edge defining the periphery of the second screen (66).
    [16" id="c-fr-0016]
    16. Air pumping device according to one of claims 12 to 15, characterized in that said second screen (66) is fixed on the stator (14).
    [17" id="c-fr-0017]
    17. An air delivery device according to claim 12, characterized in that said second screen (70) extends axially between the stator (14) and said support means (10).
    [18" id="c-fr-0018]
    18. Apparatus for air delivery according to the preceding claim, characterized in that said second screen (70) extends substantially in the extension of the periphery of said stator (14).
    [19" id="c-fr-0019]
    19. Air pumping device according to the preceding claim, characterized in that said second screen (70) has an annular ring shape.
    [20" id="c-fr-0020]
    20. Apparatus for air delivery according to the preceding claim, characterized in that said closure means extend substantially axially in the continuity of the wall forming said annular ring.
    [21" id="c-fr-0021]
    21. Apparatus for air delivery according to one of claims 17 to 20, characterized in that said second screen (70) is fixed on the support means (10).
    [22" id="c-fr-0022]
    22. Apparatus for air delivery according to one of claims 12 to 21, characterized in that said closing means are carried by the first screen (64) and the second screen (66, 70).
    [23" id="c-fr-0023]
    23. Apparatus for air delivery according to the preceding claim, characterized in that said closure means carried by the first screen (64) extend opposite the closure means carried by the second screen (66, 70), said closure means extending over an axial dimension slightly less than half the axial dimension of the stator (14).
    [24" id="c-fr-0024]
    Air-blast device according to Claim 22, characterized in that the two screens are arranged with respect to the stator so that the zones of passage between the teeth (22) of the stator are filled alternately by means of closure carried by the first screen (64) and a closure means carried by the second screen (66, 70), said closure means extending over an axial dimension substantially equal to the axial dimension of the stator,
    [25" id="c-fr-0025]
    25. Air delivery device according to one of claims 12 to 24, characterized in that the two screens have common grounding means.
    [26" id="c-fr-0026]
    26. Apparatus for air delivery according to the preceding claim, characterized in that the common grounding means are formed by at least one fixing screw (56) passing through the stator (14), in contact with at least the second screen and the first screen, to engage in the medium.
    [27" id="c-fr-0027]
    27. An air delivery device according to one of the preceding claims, in combination with at least claim 12, characterized in that the first screen and / or the second screen are made of an electrically conductive material.
    [28" id="c-fr-0028]
    Air pumping device according to one of the preceding claims, characterized in that an output shaft (8) of the motor is rotatably mounted inside the support means (10) by means of bearings. (46, 48).
    [29" id="c-fr-0029]
    29. Apparatus for air delivery according to one of the preceding claims, characterized in that the support means (10) comprises at least one plate (38) which forms a heat sink carrying a control electronic card (12) , in particular the power supply of the stator coils.
    [30" id="c-fr-0030]
    Air pumping device according to one of the preceding claims, characterized in that said rotor (16), arranged around the stator (14), carries at least one permanent magnet (36) whose interaction with said current-fed coils generates a rotational movement of the rotor around the stator.
    [31" id="c-fr-0031]
    31. Heating, ventilation and / or air conditioning system of a motor vehicle comprising at least one air-blower device (1) according to at least one of the preceding claims.
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    FR3091064A1|2020-06-26|SYNCHRONOUS ELECTRIC MACHINE
    EP3586425A1|2020-01-01|Rotating electric machine comprising a stator with sealed slots, and more particularly permanent magnet-assisted reluctant synchronous electric machine
    FR3082673A1|2019-12-20|ROTATING ELECTRIC MACHINE
    FR3091065A1|2020-06-26|Rotating electric machine with trace of connection for neutral point
    同族专利:
    公开号 | 公开日
    US20170033646A1|2017-02-02|
    CN106849514B|2020-12-15|
    FR3039723B1|2018-07-27|
    CN106849514A|2017-06-13|
    EP3125413A1|2017-02-01|
    EP3125413B1|2018-12-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2092834A|1980-12-05|1982-08-18|Papst Motoren Gmbh & Co Kg|Driving Mechanism for Magnetic Disc Drive Unit|
    FR2679076A1|1991-07-08|1993-01-15|Bosch Gmbh Robert|CONTROL MOTOR SWITCHED ELECTRONICALLY.|
    WO2013098309A2|2011-12-29|2013-07-04|Robert Bosch Gmbh|Device for shielding electromagnetic radiation interference of an electric motor|
    USRE38772E1|1981-03-18|2005-08-09|Papst Licensing Gmbh & Co. Kg|Disk storage device having an undercut hub member|
    GB2287363B|1994-03-08|1997-12-17|Control Tech Plc|Suppression of radio frequency emissions|
    US5821652A|1996-08-28|1998-10-13|Marathon Electric Manufacturing Corporation|Dynamoelectric machines with shaft voltage prevention method and structure|
    US7113365B1|2002-12-24|2006-09-26|Western Digital Technologies, Inc.|Disk drive comprising a spindle motor having a windings shield for reduced disk voltage coupling|
    TWI280322B|2005-12-23|2007-05-01|Delta Electronics Inc|Fan and motor thereof|
    JP2010098817A|2008-10-15|2010-04-30|Shinano Kenshi Co Ltd|Outer-rotor brushless motor|
    JP2010098816A|2008-10-15|2010-04-30|Shinano Kenshi Co Ltd|Blower motor|
    CN106304818B|2015-06-10|2020-09-11|台达电子工业股份有限公司|Outer rotor type fan structure|DE102015013541A1|2015-10-19|2017-04-20|Audi Ag|Method for operating an electric machine|
    FR3043280B1|2015-10-29|2019-03-22|Valeo Systemes Thermiques|ELECTRONICALLY SWITCHED ELECTRIC MOTOR AND CORRESPONDING AIR PULSE DEVICE|
    DE102017210734A1|2017-06-26|2018-12-27|Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg|Electromotive drive for a motor vehicle|
    DE102017213627A1|2017-08-07|2019-02-07|Bayerische Motoren Werke Aktiengesellschaft|Method and joining device for connecting a stator to a housing of an electrical machine, in particular for a motor vehicle|
    DE102019130129B3|2019-11-08|2020-10-22|Audi Ag|Electric motor for a motor vehicle with an inner rotor and an outer rotor and an I-shaped support structure, as well as a motor vehicle|
    DE102020204030A1|2020-03-27|2021-09-30|Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg|Electric motor drive for a motor vehicle|
    FR3111483A1|2020-06-10|2021-12-17|Valeo Systemes Thermiques|STATOR ASSEMBLY FOR ELECTRIC MOTOR WITH ELECTRONIC SWITCHING|
    FR3111484A1|2020-06-10|2021-12-17|Valeo Systemes Thermiques|STATOR ASSEMBLY FOR ELECTRIC MOTOR WITH ELECTRONIC SWITCHING|
    法律状态:
    2016-07-29| PLFP| Fee payment|Year of fee payment: 2 |
    2017-02-03| PLSC| Search report ready|Effective date: 20170203 |
    2017-07-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-07-27| PLFP| Fee payment|Year of fee payment: 4 |
    2019-07-31| PLFP| Fee payment|Year of fee payment: 5 |
    2020-07-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-29| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1557179|2015-07-28|
    FR1557179A|FR3039723B1|2015-07-28|2015-07-28|ELECTRONICALLY SWITCHED ELECTRIC MOTOR AND CORRESPONDING AIR PULSE DEVICE|FR1557179A| FR3039723B1|2015-07-28|2015-07-28|ELECTRONICALLY SWITCHED ELECTRIC MOTOR AND CORRESPONDING AIR PULSE DEVICE|
    EP16179865.7A| EP3125413B1|2015-07-28|2016-07-18|Electric motor with electronic switching and corresponding air-pulsing device|
    US15/221,787| US20170033646A1|2015-07-28|2016-07-28|Electronic-switching electric motor and corresponding air pulsation device|
    CN201610888417.5A| CN106849514B|2015-07-28|2016-07-28|Electric switching motor and corresponding air pulsation device|
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