• 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 supply device according to the invention is particularly used in a heating, ventilation and / or air conditioning system of a motor vehicle. The air delivery device comprises an electric motor (2) having a rotor (16) and a stator (14). The stator is mounted around a support means (10), so that the stator is in contact with this support means, which is made of an electrically conductive material and which is connected to an electrical ground. Furthermore, a screen (70) is disposed in the vicinity of the stator, said screen being also electrically connected to the electrical earth.
    公开号:FR3036892A1
    申请号:FR1554873
    申请日:2015-05-29
    公开日:2016-12-02
    发明作者:Pascal Guigou；Geoffroy Capoulun；Xavier Rousseil；Jonathan Fournier；Goff Morgan Le
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The present invention relates to the field of electric motors, and in particular to that of motors with electronic commutation. More specifically, it 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. These two components, in operation, generate electromagnetic radiation that can disrupt the operation of other electronic devices placed 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, there is a device for sucking and / or blowing air. The air delivery device according to the invention is of the type comprising a ventilation wheel driven in rotation by an output shaft of an electronically commutated electric motor, with the motor consisting of at least one rotor integral in rotation with the output shaft and adapted to rotate around a stator. The stator has an annular shape with a central wall which delimits the contour of an internal bore through which said output shaft passes, and it further comprises a plurality of teeth arranged radially in a star shape from the outer face of said central wall. and each carrying a magnetic coil generating an electromagnetic field, said teeth having at their distal end, opposite the central wall, metal plates which extend substantially parallel to the axis of the output shaft. In particular, it can be provided that each metal plate is arranged in such a way that a passage zone for winding the coil is formed between two adjacent metal plates. 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.
    [0002] According to the invention, it is provided on the one hand that the stator, in particular the internal face of the central wall of said stator, is in contact with a support means around which the stator is mounted, said support means being conductive and electrically connected. to an electrical ground, and it is further provided that at least one screen is disposed adjacent the stator, said screen also being electrically connected to the electrical ground. 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 a shield capable of confining the electric field created by the current switching in the stator coils generates electric fields According to a first series of characteristics, taken alone or in combination, suitable for the electrical connection of the stator to the support means, provision may be made for: the internal face of the wall central defining said internal bore 25 has at least one rib which extends radially inwardly of the bore; this rib has two lateral faces each extending said inner face of the central wall and a contact face adapted to be in contact with the support means; The contact face is curved such that the curvature of the contact face is defined by a circle centered on the axis of the internal bore; The at least one rib is extended, substantially in the direction of the axis of the internal bore, by a lug which protrudes from the contact face; - The inner face of the central wall defining the central bore comprises at least three ribs arranged in a regular angular distribution; The internal bore of the stator has a frustoconical shape, such that the bore has a larger diameter at its end facing the plate than at its end facing the rotor. Advantageously, it is provided that the support means is formed of a single piece comprising a drum and a plate, the barrel, around which is mounted the stator, and in which is rotatably mounted said output shaft secured to the rotor, extending projecting from the plate disposed transversely on one side of the opposite stator to the side of said rotor. Having a single piece which serves as a support means of the stator and the rotor makes it possible to obtain a good coaxiality between the rotor and the stator, so that there is thus limited risks of engine malfunction such as an alternation of acceleration phases and slowdown phases. It can be provided in this context that the output shaft of said motor is rotatably mounted within the barrel by means of bearings. And the platen of the support means may form a heat sink carrying an electronic control board, in particular the power supply of the stator coils, the electronic control board being then disposed on the opposite side of the board. of the drum. According to a second series of characteristics, taken alone or in combination with each other and with the first series of characteristics mentioned above, it will be possible for the screen to be arranged transversely to the output shaft, between the rotor and the stator. . - The screen extends radially over the entire diameter of the stator. ; - The screen has a substantially flat annular shape, pierced at its center with a bore to be traversed by the motor output shaft; The screen is fixed on the stator by at least one fixing screw able to cooperate with a hole formed in the stator; The internal bore of the stator has two distinct parts by modifying the internal diameter of the central wall delimiting said internal bore, a first portion of larger diameter extending from the edge arranged axially in the vicinity of the screen until at a shoulder edge 5 delimiting a second portion of smaller diameter, said hole cooperating with the fixing screw being formed in the shoulder edge; the screen comprises at least one tab which extends substantially perpendicularly the edge delimiting the central bore of the screen, and the free end of which has a bearing edge, so that the tab comes into contact with the edge of the screen; shoulder by this support edge when the screen is in the stator covering position; - The support edge is arranged to allow passage to the fixing screw body in the fixing hole and be pressed against the shoulder edge by the screw head; Three fixing holes are regularly distributed at 1200 around the periphery of the internal bore of the stator; the screen is connected to a substantially zero electrical potential by means of said at least one fixing screw which extends substantially parallel to the motor output shaft, passing through said stator to engage said means support; - The stator has at least one axial boss disposed projecting from the inner face of the central wall defining the internal bore of said stator, said boss being pierced axially of the fixing hole adapted to be traversed by the at least one fixing screw; The screen is made of an electrically conductive material, which may be an example of aluminum. It may also be provided that the screen having been the subject of the second series of characteristics given above is a first screen forming part of a stator cover which furthermore comprises a second screen arranged in the cover of the stator of the stator. axial side of the stator opposite to the side covered by the first screen, between said stator and the support means.
    [0003] According to different embodiments, this second screen may extend transversely or parallel to the output shaft of the motor. In the first case, with a second screen extending transversely, it may be provided that the second screen extends radially over the entire diameter of the stator; the second screen may also present a substantially flat annular shape, pierced at its center to be traversed by the motor output shaft. And the second screen can be fixed on the stator. In the second case, with a second screen extending axially, it may be provided that the second screen extends substantially in the extension of the plates borne at the periphery of said stator. The second screen may then have an annular ring shape, and be fixed on the stator or directly on the plate. Again, it is advantageous that the second screen is made of an electrically conductive material, for example aluminum. The present 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 pumping device comprising, according to the invention, means for radial confinement of the electromagnetic radiations; FIG. 3 is a perspective view of a stator equipping an electric motor in an air supply device according to the invention; FIG. 4 is a partial view from above of the stator of FIG. 3; FIG. 5 schematically illustrates an air pumping device comprising, according to the invention, means for radially confining electromagnetic radiation and means for axial confinement, at a screen, of these same radiations according to a first embodiment; FIG. 6 is a perspective view of a stator and two-screen axial confinement means, according to a first variant embodiment; FIG. 7 schematically illustrates an air-blast device 5 comprising, according to the invention, means for radial confinement of the electromagnetic radiations and axial confinement means, with two screens, of these same radiations according to a second variant embodiment; FIG. 8 schematically illustrates an air-pulsation device 10 comprising, according to the invention, means for radial confinement of the electromagnetic radiations and axial confinement means, with two screens, of these same radiations according to a third variant embodiment; and FIG. 9 is a perspective view of a detail of the device of FIG. 8. An air supply device 1, which makes it possible to suck and / or blow air, comprises at least one electronic switching electric motor 2, adapted to drive in rotation a ventilation wheel 4, of the type here with fins 6, via an output shaft 8 of the electric motor. The device further comprises 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 board 12 of said electric motor. The electric motor mainly comprises an inductor stator 14 and an induced rotor 16 carrying the output shaft 8 capable of driving the ventilation wheel 4. The stator 14 is made integral with the support means 10 of the 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.
    [0004] As can be seen in FIG. 3, the stator 14 has an annular shape with a central wall 18 which delimits the contour of an internal bore 20. The central wall has an internal face 22 turned towards the internal bore 3036892 7 and an outer face 24 extended by a plurality of teeth 26 arranged radially in a star. The internal bore 20 of the stator has distinct portions by changing the internal diameter of the central wall delimiting said internal bore, larger diameter portions extending from the axial end edges of the central wall to a shoulder edge 28 delimiting a central portion of the internal bore of smaller diameter. In this central portion, the stator has at least one axial boss 30 disposed projecting from the inner face, said boss being pierced axially with an attachment hole 32 as will be described below. The teeth 26 are formed by a straight wall, a proximal radial end of which is integral with the central wall 18 of the stator 14 and of which a free distal radial end is extended by a plate 34 which extends over the entire height of the stator and which is wider than the right wall, so as to form a stop wall for the coil to be surrounded around the right wall of the teeth. Each plate is covered opposite the right wall by a superposition of different layers of sheet, glued on each other. The stator 14 comprises an excitation winding composed of several phases, each comprising at least one winding of wire 36, whose outputs 20 are electrically connected to supply means not shown here (only the connection means 38 being visible 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 in FIG. 3, the plates 34 carried at the end of the teeth and the metal layers which are adhered to them are sized to provide a passage zone 40 between them capable of leaving the space necessary to produce the winding the wire around the teeth. The rotor 16 has a bell shape, with an annular ring 42 and a closure wall 44 disposed at one end of said ring. The closure wall may take a planar shape substantially perpendicular to the axis of the crown or a curved shape in disengagement from the crown, and carries at its center the motor output shaft 8.
    [0005] The ring 42 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 faces the stator in this overlapping position, and at least one permanent magnet 46 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 gear 42. The rotor and the stator are thus arranged so that the permanent magnet 46 carried by the rotor 16 is constantly arranged in the magnetic field generated by the stator coils 14 when the latter are energized, 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 closing wall 44 of the rotor is turned towards the ventilation wheel 4 and that the stator 14 15 is arranged facing the support means 10. The latter has the shape of a plate 48 and a shaft 50 disposed projecting from the plate and having an internal channel 52 opening substantially in the center of the plate, and it is fixed relative to the vehicle structure, here via a frame 54 illustrated in Figure 1.
    [0006] The plate 48 extends in a plane substantially perpendicular to the axis of revolution of the internal channel of the barrel 50. The barrel, substantially cylindrical, is adapted to be housed in the internal bore 20 of the stator 14 and to receive the motor output shaft 8 integral with the rotor 16, so that it is understood that this support means 10 ensures the correct positioning of the rotor 16 relative to the stator 14. It can be observed in FIGS. 1, 2, 6, 8 and more clearly in Figure 9, that the shaft 50 and the plate 48 form a single piece, it being understood that the support means is monobloc when the separation of the barrel and the plate causes destruction of one or the other of these components. The plate 48 has a disc shape in the figures, but it will be understood that the latter may take other forms, for example rectangular, square, elliptical, etc. The plate 48 of the support means forms a heat sink carrying an electronic control board 12, in particular the supply of the 3036892 9 stator coils. The electronic control board is disposed on the face of the plate 48 facing away from the barrel 50. Preferably, the support means 10 is made of metal. Thus, the plate 48 acting as heat sink can effectively cool the electronic member 5 by thermal conduction. In addition, the fact that the support means is made of metal makes it possible to block electromagnetic radiation emitted by the electronic element, these radiations being able to disturb 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 48 of the support means 10 is fixed with respect to the structure of the vehicle , here via the frame 54, 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.
    [0007] As is particularly visible in Figures 2, 5, 7 and 8, 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 50, being in contact with the outer face of the barrel, while the rotor 16 is received, via the output shaft 8 which it is integral, in the inner channel 52 of the barrel.
    [0008] The power supply of the coil leads creates magnetic fields 56, exemplified for a winding around a tooth in FIGS. 2 to 3, which forces the driven rotor to rotate under the effect of the 46 permanent magnet that he wears. 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 50 of the support means by means of bearings. Two bearings 58, 59 are inserted into the internal channel 52 of the drum 50 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, such as schematically illustrated, but it will be understood that they could take the form of roller bearings, needles, or other ... The ventilation wheel 4 of the air impulse device 1 is secured to the free end 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 causes rotating the wheel which helps to produce pulsed air through the fins. It is particularly notable according to the invention that the electric motor 25 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 drive device. air. In particular, the motor comprises radial confinement means, that is to say means making it possible to prevent the radial propagation of these electromagnetic radiations, perpendicular to the axis of the output shaft of the motor. The inner face 22 of the central wall 18 of said stator is in contact with the barrel 50 arranged in a projection of the plate 48, it being understood that the one-piece piece formed by the barrel 50 and the plate 48 is metallic and connected to an electrical potential substantially no. As a result, the metal layers disposed on the plates 34 on the perimeter of the stator 14 are brought to zero potential and form, by the equivalent of a Faraday cage, the radial confinement means. In order for these radial confinement means to be effective, it is necessary to ensure the correct electrical connection to the zero potential of the plates 34 and thus to ensure good contact between the stator 14 and the support means 10. In FIGS. and 4, there is illustrated means to ensure this good contact, this being achieved in particular by the fact that the inner face 22 of the central wall 18 defining the internal bore 20 of the stator 14 has at least one rib 60 which extends radially inwardly of this internal bore 20. This rib 60 has two lateral faces 62 each extending said inner face of the central wall 18 and a contact face 64 adapted to be in contact with the barrel of the support means. The contact face 64 is curved such that the curvature of the contact face is defined by a circle centered on the axis of the internal bore 20. It may be provided that the internal bore 20 of the stator comprises 30 these ribs 60, arranged in a regular angular distribution, 120 ° in this case. A seat of circular section is thus created to receive the cylindrical barrel of the support means.
    [0009] In order to ensure even more effective contact between the stator and the barrel of the support means, it may further be provided to advantageously modify at least one rib 60, in particular to extend it, substantially in the direction of the axis of the barrel. internal bore, by a lug 66 which protrudes from the contact face 64.
    [0010] Advantageously, as illustrated, this lug 66 can take the form of a sufficiently rigid tip not to break at the fitting of the barrel in the internal bore of the stator, and each of these ribs 60 can bear such a lug 66. According to a variant not shown, it can be provided that the internal bore 20 of the stator has a frustoconical shape, such that the bore has a larger diameter at its end facing the plate 48 than at its end turned towards the rotor, and that the outer profile of the barrel 50 of the support means on which the stator 14 engages also has a 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.
    [0011] It can also be provided that the barrel 50 axially has two distinct sections in that a first section, in the direct extension of the plate, has a larger external diameter than the second section extending the first section to the end. free of the drum. In this way, a shoulder is formed between the two sections and the stator can bear on this shoulder when it is threaded around the barrel. We can see such a shoulder 68 shown in Figure 9 for example. Such an arrangement is to be combined with the presence of the ribs 60, possibly equipped with the pins 66 described above, to ensure a plurality of contact zones and thus ensure a good electrical connection between the support means and the stator.
    [0012] Specific embodiments will now be described in that the confinement means consist of the presence of at least one additional screen made of a conductive material, in particular aluminum, and electrically connected to 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.
    [0013] In FIG. 5, the motor 2 comprises a first screen 70, arranged transversely to the output shaft 8, between the stator 14 and the rotor 16, to form means of axial confinement of the electromagnetic radiations. In order to form an effective means of confinement, the first screen 70 extends transversely over the entire diameter of the stator. As illustrated in FIG. 6, provision can be made for the first screen 70 to have a substantially flat annular shape, pierced at its center by a bore 72 to be traversed by the output shaft 8 of the motor which extends between the rotor 16 and the stator 14. The first screen 70 is fixed on the stator 14 substantially in the center of the screen. And the fastening means provided, by screwing, further allow the grounding of the first screen 70. For this purpose, the first screen 70 comprises at least one tab 76 which extends substantially perpendicular to the edge defining the central bore 72 of the first screen. The free end of this tab has a bearing edge 78 folded perpendicularly to the rest of the tab, to come into contact with the stator, and more particularly the shoulder edge 28 of the internal bore 20 of the stator 14, when the first screen 70 is in the covering position of this stator 14. The first screen is angularly arranged so that the support edge 78 of this tab is arranged around a fixing hole 32 made in the thickness of the stator. The bearing edge 78 is arranged to allow the body of a fastening screw 80, which extends substantially parallel to the motor output shaft, to be inserted for the insertion of this screw into the corresponding fixing hole 32. and to be pressed against the shoulder edge 28 by the screw head. As illustrated, the first screen 70 has three attachment tabs 76, regularly distributed at 120 ° around the perimeter of the central bore of the screen, and there are provided as many fixing holes 32 for the first screen to be plated against the stator by three fixing screws 80. Advantageously, it is intended to use the fixing screws 80 for the electrical grounding of the first screen 70, this grounding being necessary so that the first screen is able to limit the propagation of electromagnetic radiation.
    [0014] The first screen 70 is grounded via at least one of the fixing screws 80, which for this purpose passes through the stator 14 to engage the other side of the stator on the plate. 48. As shown in FIG. 5, this fixing screw 80 passes through a smooth fastening hole made through the stator 14 and engages in a threaded hole 82 made in the plate. It is understood that each of the three fastening screws may have such an arrangement, or that only one of the fastening screws 80 passes through the stator 14 to engage the plate 48, the other two fastening screws being shorter than to cooperate with a fastening hole 32 threaded in the body of the stator. The electrical connection of the screen and its grounding is done via the metal plate 48, the at least one metal fixing screw 80 engaged in the plate, and the contact between the tab 76 of the screen and the screw head. A particular embodiment will now be described, particularly with reference to FIGS. 6 to 8, in that two screens are provided to form a more effective cover for the stator. A first screen 70 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 70. , ie between said stator 14 and the plate 48. This second screen is also made of an electrically conductive material, for example aluminum, as the first screen. Due to the presence of the platen, this second screen may have several variants. In a first variant, illustrated in FIG. 6, the second screen 86 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 relative to the stator. In this way, the second screen extends radially over the entire diameter of the stator, and it has a substantially flat annular shape 25, pierced at its center to be traversed by the barrel of the support means. The second screen comprises as the first screen mounting tabs 88 to be screwed on the stator. At least one of the fixing screws 80 mentioned above is threaded on a sufficiently large height to cooperate with a threaded hole in the plate and be engaged with a nut 30 not shown here which plate the second screen 86 on the stator. Thus, the earthing, at the same substantially zero electrical potential, of the first screen 70 and the second screen 86 is achieved and an optimal axial confinement of the electromagnetic radiations is ensured. In a second variant, illustrated in FIG. 7, the second screen 90 is, as just described, transverse to the axis of the motor output shaft 8, 5 and extends radially over the entire diameter of the stator 14, having a substantially flat annular shape. However, the second screen is substantially different from the first screen in that it is fitted in its central bore on the barrel 50 of the support means 10. The grounding of the second screen 90 is made by contact with the shaft 50 secured to the plate 48 itself connected to the ground. It is understood that such an alternative embodiment is made possible only if the barrel 50 and the plate 48 of the support means 10 form a single and same piece connected to the ground. In this context, where the stator is fitted on a barrel connected to the zero electrical potential, it can be seen that in FIGS. 7 and 8 a first screen made integral with the stator has been shown and thus grounded without the need for any additional voltage. have a way through to be engaged on the turntable. In a third variant, illustrated in FIGS. 8 and 9, the second screen 92 may extend axially, substantially in the extension of the plates 34 borne at the periphery of said stator 14, the second screen 92 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 48, the latter case being illustrated. The fixing of the second screen 92 is then done by second fixing screws 94 which cooperate with corresponding threaded bores in secondary drums 96 arranged projecting from the plate 48 around the barrel 50. Fixing tabs 98, extending perpendicularly to the crown , secure the second screen and the ground. The foregoing description aims to explain how the invention makes it possible to achieve the objectives it has set itself, and in particular to propose an air-blowing device which confines electromagnetic radiation, by the development of simple confinement means. to manufacture, simple to assemble and particularly effective. In particular, it is noteworthy that confinement is made possible in all directions, with both radial and axial confinement, this axial confinement being achieved between the rotor and the stator, and between the stator and the plate. However, the invention is not limited to air pumping devices according to the embodiments explicitly described with reference to FIGS. 1-5. By way of example, it will be possible, without departing from the scope of the invention. invention, change the shape of the screen as it forms a portion of a box sealingly closing at least one side of the stator. It will also be understood that in an alternative embodiment, the means for fixing the screen on the stator or on the plate could have a different shape, in particular by being different means of the grounding of the screen.
    权利要求:
    Claims (36)
    [0001]
    REVENDICATIONS1. An air-pulsating device comprising an electronically commutated electric motor (2), said motor comprising a rotor (16) and a stator (14), wherein said stator is in contact with a stator support means (10), said support means being an electrical conductor connected to an electrical ground, and wherein a screen (70, 86, 90, 92) is disposed adjacent the stator, said screen (70, 86, 90, 92) also being electrically connected to the electric mass.
    [0002]
    2. Air pumping device according to claim 1, characterized in that said stator (14) has an annular shape with a central wall (18) which delimits the contour of an internal bore (20) through which a shaft passes. motor output (8).
    [0003]
    3. Air pumping device according to claim 2, characterized in that the inner face (22) of the central wall (18) defining said internal bore (20) has at least one rib (60) which extends radially. towards the inside of the bore.
    [0004]
    4. An air supply device according to claim 3, characterized in that said at least one rib (60) has two lateral faces (62) each extending said inner face (22) of the central wall and a contact face ( 64) adapted to be in contact with the support means (10).
    [0005]
    An air pumping device according to claim 4, characterized in that said contact face (64) is curved such that the curvature of the contact face is defined by a circle centered on the axis of the internal bore (20).
    [0006]
    Air blower device according to one of Claims 3 to 5, characterized in that the at least one rib (60) is extended substantially in the direction of the axis of the internal bore (20) by a lug (66).
    [0007]
    7. An air delivery device according to claim 6, when it depends at least on claims 4 or 5, characterized in that the lug (66) extends projecting from the contact face (64). 3036892 17
    [0008]
    8. Apparatus for air delivery according to one of claims 3 to 7, characterized in that said inner face (22) of the central wall (18) defining the internal bore (20) carries at least three ribs (60 ) arranged in a regular angular distribution.
    [0009]
    9. Apparatus for air delivery according to one of the preceding claims, characterized in that said support means (10) is formed of a single piece having a shaft (50), around which is mounted the stator (14), and a plate (48) disposed transversely on one side of the stator opposite to the side of said rotor and from which said barrel (50) extends. 10
    [0010]
    10. Apparatus for air delivery according to the preceding claim, when dependent on claim 2, characterized in that the output shaft (8) of said motor is rotatably mounted inside the barrel (50) by intermediate bearings (58, 59).
    [0011]
    11. Apparatus for air delivery according to one of claims 9 or 10, characterized in that the plate (48) of the support means (10) forms a heat sink carrying an electronic control board (12), in particular the supply of the stator coils.
    [0012]
    12. Apparatus for air delivery according to the preceding claim, characterized in that the electronic control board (12) is disposed on the face of the plate (48) facing away from the shaft (50).
    [0013]
    13. Apparatus for supplying air according to one of claims 2 to 12, characterized in that said screen (70) is disposed transversely to the output shaft (8), between the rotor (16) and the stator ( 14).
    [0014]
    14. Air pumping device according to the preceding claim, characterized in that said screen (70) extends radially over the entire diameter of the stator (14).
    [0015]
    15. Apparatus for air delivery according to one of claims 13 or 14, characterized in that said screen (70) has a substantially flat annular shape, pierced at its center with a bore (72) to be traversed by the output shaft (8) of the engine. 3036892 18
    [0016]
    16. Apparatus for air delivery according to one of claims 13 to 15, characterized in that said screen (70) is fixed on the stator (14) by at least one fixing screw (80) adapted to cooperate with a hole (32) formed in the stator.
    [0017]
    17. Apparatus for air delivery according to the preceding claim, characterized in that the internal bore (20) of the stator (14) has two distinct parts by changing the internal diameter of the central wall (18) defining said internal bore, a first larger diameter portion extending from the axially disposed edge adjacent the screen to a shoulder edge (28) defining a second smaller diameter portion, said hole (32) cooperating with the fixing screw being formed in the shoulder edge.
    [0018]
    18. Apparatus for air delivery according to the preceding claim, in combination with at least claim 15, characterized in that the screen (70) comprises at least one tab (76) which extends substantially perpendicularly the edge defining the bore center (72) of the screen, and whose free end has a bearing edge (78), so that the tab comes into contact with the shoulder edge '(28) by this support edge when the screen is in the position of recovery of the stator (14).
    [0019]
    19. Apparatus for air delivery according to the preceding claim, characterized in that the bearing edge (78) is arranged to allow passage to the body of the fastening screw (80) in the fixing hole (32) and be pressed against the shoulder edge (28) by the screw head.
    [0020]
    20. Apparatus for supplying air according to one of claims 16 to 19, characterized in that three fixing holes (32) are evenly distributed at 120 'around the bore of the internal bore (20) of the stator (14). ). 25
    [0021]
    21. Apparatus for supplying air according to one of claims 16 to 20, characterized in that the screen (70) is connected to the electrical mass via said at least one fixing screw (80) which extends substantially parallel to the output shaft (8) of the motor, passing through said stator (14) to engage said support means (10). 30
    [0022]
    22. Apparatus for air delivery according to one of claims 16 to 21, characterized in that the stator (14) has at least one axial boss (30) 3036892 19 disposed projecting from the inner face (22) of the central wall (18) defining the internal bore (20) of said stator, said boss being pierced axially of the fixing hole (32) adapted to be traversed by the at least one fixing screw (80).
    [0023]
    23. Air blower device according to one of the preceding claims, characterized in that the screen (70) is made of an electrically conductive material.
    [0024]
    24. Apparatus for air delivery according to one of the preceding claims, characterized in that said screen (70) is a first screen forming part of a cover of the stator (14) further comprising a second screen (86, 90 , 92), 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 (10).
    [0025]
    25. An air delivery device according to the preceding claim, when dependent on claim 2, characterized in that said second screen (86, 90) extends transversely to the output shaft (8) of the engine. 15
    [0026]
    26. Air pumping device according to the preceding claim, characterized in that said second screen (86, 90) extends radially over the entire diameter of the stator (14).
    [0027]
    27. Apparatus for air delivery according to the preceding claim, characterized in that said second screen (86, 90) has a substantially flat annular shape 20, pierced at its center to be traversed by the motor output shaft.
    [0028]
    28. The air supply device according to one of claims 25 to 27, characterized in that said second screen (86, 90) is fixed on the stator (14).
    [0029]
    29. An air delivery device according to claim 24, when dependent on claim 9, characterized in that said second screen (92) extends axially between the stator (14) and the platen (48). of the support means (10).
    [0030]
    30. Air pumping device according to the preceding claim, characterized in that said second screen (92) extends substantially in the extension of plates (34) borne at the periphery of said stator (14). 3036892 20
    [0031]
    31. Apparatus for air delivery according to the preceding claim, characterized in that said second screen (92) has an annular ring shape.
    [0032]
    32. Apparatus for air delivery according to one of claims 29 to 31, when they depend on at least claim 9, characterized in that said second screen (92) is fixed on the plate (48).
    [0033]
    33. Apparatus for air delivery according to one of claims 24 to 32, characterized in that said second screen (86, 90, 92) is made of an electrically conductive material.
    [0034]
    34. Air pumping device according to one of the preceding claims, in combination with at least claim 2, characterized in that said stator further comprises a plurality of teeth (26) radially arranged in a star from the outer face. (24) of said central wall (18) and each carrying a magnetic coil generating an electromagnetic field, said teeth having at their distal end, opposite the central wall, metal plates (34) which extend substantially parallel to the axis of the output shaft.
    [0035]
    35. Apparatus for air delivery according to the preceding claim, characterized in that the rotor (16), arranged around the stator (14), carries at least one permanent magnet (46) whose interaction with said coils. current fed generates a rotational movement of the rotor around the stator.
    [0036]
    36. Heating, ventilation and / or air conditioning system of a motor vehicle comprising at least one air-blower device (1) according to any one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    FR3036892B1|2018-07-06|
    US20180159390A1|2018-06-07|
    CN107667459A|2018-02-06|
    EP3304705B1|2020-04-29|
    CN107667459B|2020-06-26|
    JP6676075B2|2020-04-08|
    EP3304705A1|2018-04-11|
    US10965175B2|2021-03-30|
    JP2018516527A|2018-06-21|
    WO2016193047A1|2016-12-08|
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    FR2679076A1|1991-07-08|1993-01-15|Bosch Gmbh Robert|CONTROL MOTOR SWITCHED ELECTRONICALLY.|
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    JPS5225123B2|1974-07-10|1977-07-06|
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    JP4629038B2|2004-06-11|2011-02-09|サムソンエレクトロ−メカニックスカンパニーリミテッド．|Information recording / reproducing apparatus and manufacturing method thereof|
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    DE102012201545A1|2011-12-29|2013-07-04|Robert Bosch Gmbh|Device for shielding electromagnetic interference of an electric motor|
    JP5893947B2|2012-02-13|2016-03-23|ミネベア株式会社|Brushless motor and blower|
    JP5956201B2|2012-03-09|2016-07-27|ミネベア株式会社|Blower|CN106787418B|2015-11-23|2019-12-10|德昌电机有限公司|Driving device and pump using same|
    CN107846116A|2016-09-18|2018-03-27|德昌电机有限公司|Motor and electric machine assembly|
    CN110518750A|2018-05-21|2019-11-29|德昌电机有限公司|Motor and electric machine assembly|
    法律状态:
    2016-05-27| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-02| PLSC| Publication of the preliminary search report|Effective date: 20161202 |
    2017-05-30| PLFP| Fee payment|Year of fee payment: 3 |
    2018-05-28| PLFP| Fee payment|Year of fee payment: 4 |
    2019-05-31| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-05-31| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1554873|2015-05-29|
    FR1554873A|FR3036892B1|2015-05-29|2015-05-29|ELECTRONICALLY SWITCHED ELECTRIC MOTOR AND CORRESPONDING AIR PULSE DEVICE|FR1554873A| FR3036892B1|2015-05-29|2015-05-29|ELECTRONICALLY SWITCHED ELECTRIC MOTOR AND CORRESPONDING AIR PULSE DEVICE|
    US15/575,849| US10965175B2|2015-05-29|2016-05-23|Electronically switched electric motor and corresponding air pulse device|
    CN201680031323.4A| CN107667459B|2015-05-29|2016-05-23|Electronic switching motor and corresponding air pulse device|
    EP16725490.3A| EP3304705B1|2015-05-29|2016-05-23|Electronically switched electric motor and corresponding air pulse device|
    PCT/EP2016/061617| WO2016193047A1|2015-05-29|2016-05-23|Electronically switched electric motor and corresponding air pulse device|
    JP2017561903A| JP6676075B2|2015-05-29|2016-05-23|Electronically switched electric motor and corresponding air pulsation device|
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