• 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:
    The invention relates to an electrical equipment (1), in particular for a motor vehicle, this device comprising: - an electric machine (7) comprising a rotary shaft (19), - a target (60) mounted on the rotary shaft, - a sensor (61) arranged to interact with the target, in particular to deliver information relating to the angular position of the rotary shaft, - an electronic card (62) carrying at least one data processing unit (63), the sensor being mounted on this map and electrically connected to the treatment unit.
    公开号:FR3042328A1
    申请号:FR1559682
    申请日:2015-10-12
    公开日:2017-04-14
    发明作者:Mimoun Askeur
    申请人:Valeo Systemes de Controle Moteur SAS；
    IPC主号:
    专利说明:

    Electrical equipment, in particular for a motor vehicle
    The present invention relates to an electrical equipment, in particular for a motor vehicle. The invention aims to provide improved electrical equipment. The invention thus relates to an electrical equipment, in particular for a motor vehicle, this device comprising: - an electric machine comprising a rotary shaft, - a target mounted on the rotary shaft, - a sensor arranged to interact with the target, particularly for providing information relating to the angular position of the rotary shaft, - a card carrying at least one data processing unit, the sensor being mounted on this card and electrically connected to the processing unit.
    Thanks to the invention, it is possible to have an electrical equipment at reduced cost because the sensor is carried by the card, which avoids to provide additional parts between the sensor and the card, such as a sensor support parts. or a connector. Mounting the sensor on a card can be simplified.
    The sensor is not deported on a mechanical part and being away from the magnetic fields created in the stator and the rotor of the machine, the sensor is less sensitive to these magnetic disturbances. It is therefore not necessary to add for example a shield on the wiring that connects the sensor to the control card that processes the signal from the sensor.
    Preferably the magnetic target has several North and South sectors. These sectors depend on the topology of the machine. Pre-stalling gives the position of the rotor. Thus, after this calibration, the origin of the magnetic target and the rotor is identical. It is then possible by successive reading of the North and South poles to have the exact position of the rotor.
    Preferably, the target is a magnetic target, preferably arranged to generate a magnetic field extending axially substantially along an axis of rotation of the shaft of the electric machine, and the sensor is sensitive to this magnetic field.
    The target is advantageously placed at one end of the rotary shaft, for example the target is placed on a support which is itself fixed on the motor shaft.
    In an exemplary implementation of the invention, the electric machine comprises a wall including a housing, wall provided with an opening to the right of which is placed the target.
    The housing advantageously comprises cooling fins, in particular arranged to evacuate the heat of said wall.
    In an exemplary implementation of the invention, the target extends at least partially in the opening. The opening is preferably through.
    Alternatively, the aperture is blind and forms a housing for the target. This housing is advantageously formed by a recess of the wall of the machine. This wall is for example a back plate of the electric machine, opposite for example on the machine side where there is a compressor wheel. This back plate is for example made of plastic or metal material. The opening has for example a circular shape. The opening is for example made during the molding of the housing. In a variant, the opening is made by removal of material, in particular by machining.
    Advantageously, the opening opens on the electronic card.
    For example, the electronic card is disposed on one face of the casing, in particular an outer face of the casing. The card is for example glued or screwed on the housing. The opening of the casing preferably receives a sealing member. The sealing member is for example made of plastic. In a variant, this sealing member is made of metal.
    Advantageously, the sealing member is an insert in the opening.
    For example, the sealing member and the target are separated by an air space.
    In an exemplary implementation of the invention, the sealing member and the sensor are separated by an air space.
    In a variant, the equipment does not have an attached sealing member. In this case, the seal is achieved by the wall itself of the machine.
    In an exemplary implementation of the invention, the sensor is mounted on a face of the electronic card face facing the opening.
    The electronic card advantageously comprises a conductive track and the sensor is connected to this track, in particular by brazing.
    In particular, the data processing unit is mounted on one face of the electronic card opposite from that which receives the sensor.
    The electronic board preferably comprises an electrical connection for electrically connecting the sensor and the processing unit, this connection extending in the thickness of the electronic card between the two faces of the card.
    The connection extends for example in a hole of the card. This connection is still called via.
    Preferably the sensor extends at least partially in the opening.
    For example, the target and the sensor are arranged substantially coaxially.
    The sensor is in particular a Hall effect sensor.
    In an exemplary implementation of the invention, the electronic card extends substantially perpendicular to the axis of the shaft of the machine.
    The electronic card may include, where appropriate, a through hole which receives the sensor. This orifice can in particular also receive the recess of the wall. A control card can be, if desired, placed on the electronic card. Advantageously, this control card carries the sensor, and this control card closes the orifice of the electronic card.
    Preferably the sensor is fixed by brazing on the electronic card. The sensor is vis-à-vis the magnetic target with adequate air space (airgap English).
    Preferably, the equipment forms an electric supercharger for a motor vehicle.
    The compressor may comprise a cooling channel arranged to cool at least one electronic assembly comprising the electronic card, this channel receiving a cooling liquid, for example water.
    The machine is for example arranged as a motor.
    If desired, the machine may be a variable reluctance machine.
    Said electrical machine is intended to operate the over-power compressor of a motor vehicle for example.
    For example, this compressor ("electric supercharger" in English) is in addition to a turbocharger to compensate for its response time (due to its inertia and the time required for the exhaust gas has sufficient energy to drive it ). The compressor provides supercharging in a few hundred milliseconds until the turbocharger has sufficient speed to take over. The compressor, if desired, can act autonomously. For this purpose, the compressor comprises a compressor wheel. The compressor is disposed on the intake duct upstream or downstream, preferably upstream, of the engine to allow compression of the intake air to optimize the filling of the cylinders of the engine.
    The electric machine is activated to drive the compressor wheel in order to minimize the torque response time, in particular during the transient phases during acceleration, or in the automatic restart phase of the engine after a standby ("stop" operation). start "in English).
    The speed of rotation of this type of electric machine can reach 70000 revolutions / min. The invention also relates to a motor vehicle electric supercharger comprising an electric machine equipped with an electronic device as defined above. The invention will be better understood and other details, characteristics and advantages of the invention will become apparent on reading the following description given by way of non-limiting example with reference to the appended drawing in which: FIGS. 1 and 2 represent , schematically and partially, in section, an electronic device respectively according to two embodiments of the invention.
    FIG. 1 shows an over-supply electric compressor 1 comprising a wheel 2 equipped with fins 3 able to suck, via an inlet 4, uncompressed air coming from an air source (not represented) and to discharge compressed air via the outlet 5 after passing through a volute 6. The outlet 5 can be connected to an intake distributor (not shown) situated upstream of the explosion engine of the vehicle in order to optimize the filling of the cylinders of the combustion engine. In this case, the suction of the air is performed in an axial direction, that is to say along the X axis of the wheel 2, and the discharge is made in a radial direction substantially perpendicular to the X axis of the wheel 2.
    The wheel 2 is driven by an electric machine 7 mounted inside the housing or casing 8. This electric machine 7 comprises a stator 9, which may be polyphase, surrounding a rotor 10 with the presence of an air gap. This stator 9 is mounted in the housing 8. The rotor 10 is integral with a shaft 19 cooperating with bearings 20a and 20b. The shaft 19 is connected in rotation with the wheel 2 as well as with the rotor 10.
    The stator 9 comprises a body 25 consisting of a stack of thin sheets forming a ring, also called a bundle of sheets 25, the inner face of which is provided with notches open towards the inside to receive phase windings which form a winding. .
    The rotation axis rotor X is for example permanent magnets. The rotor 10 comprises a body formed here by a stack of sheets. Alternatively, the rotor 10 may be devoid of permanent magnets.
    The housing or housing 8 is made by molding, in particular aluminum.
    The housing 8 comprises a cooling channel 50 for the passage of a cooling fluid, in particular water.
    This cooling channel 50 extends at least partially around the shaft 19.
    The compressor 1 comprises a transverse wall 35 separating the wheel 2 from the electric machine 7, this wall 35 comprising the cooling channel 50. In other words, this transverse wall is between the wheel and the electric machine.
    This transverse wall 35 cooperates with the bearing 20a, in particular a ball bearing, of the shaft of the electric machine.
    A target 60 is mounted on the rotary shaft 19, which target is arranged to interact with a sensor 61 to provide information relating to the angular position of the rotary shaft.
    The compressor 1 further comprises an electronic card 62 carrying a data processing unit 63, the sensor 61 being mounted on this card 62 and electrically connected to the processing unit 63.
    The target 60 is a magnetic target arranged to generate a magnetic field extending axially substantially along the axis X of rotation of the shaft 19 of the electric machine, and the sensor 61 is sensitive to this magnetic field.
    The target 60 is placed at one end of the rotary shaft 19.
    The housing 8 has a wall 65 provided with an opening 66 to the right of which is placed the target. The casing 8 comprises cooling fins 67 arranged to evacuate the heat of said wall 65.
    The target 60 extends in the opening 66 which is through and opens out on the electronic card 62. The opening 66 has, in the example, a circular shape and is made by machining.
    The electronic card 62 is disposed on an outer face 68 of the housing. The opening 66 receives a sealing member 70. The sealing member 70 is, in the example described, made of plastic and is an insert in the opening. The sealing member 70 and the target 60 are separated by an air space. The sealing member 70 and the sensor 61 are likewise separated by an air space.
    The sensor 61 is mounted on a face 71 of the electronic card 62, facing towards the opening 66.
    The electronic card 62 comprises a conductive track 72 and the sensor is connected to this track 72 by brazing. The data processing unit 63 is mounted on a face 73 of the electronic board, face 73 opposite that 71 which receives the sensor 61.
    The electronic card 62 includes an electrical connector 75 for electrically connecting the sensor 61 and the processing unit 63, this connector extending in the thickness of the electronic card 62 between the two faces 71 and the card.
    The connector 75 extends into an orifice 76 of the card 62. This connection is also called via.
    The sensor 61 extends into the opening 66.
    The target 60 and the sensor 61 are arranged substantially coaxially.
    The sensor may be of the switch or linear type.
    The electronic card 62 extends substantially perpendicular to the axis X of the machine shaft.
    The electronic card 62 carries other components, such as for example one or more capacities.
    A cover 80 is mounted on the housing 8 to protect the electronic card 62 and the components it carries.
    In the example described, the data processing unit 63 is a microprocessor which acquires the sensor information and calculates from the incoming information the position of the rotor.
    The electric machine 7 is activated to drive the compressor wheel in order to minimize the torque response time, in particular during the transient phases during acceleration, or in the automatic restart phase of the engine after a standby ("stop" operation and start ").
    The speed of rotation of this type of electric machine can reach 70000 revolutions / min.
    Of course, the invention is not limited to the example just described.
    There is shown in Figure 2 a compressor substantially similar to that described in Figure 1 but differs in the following aspects.
    In the example of FIG. 2, the opening 66 is blind and forms a housing for the target 60. The target 60 is carried by a support 85 mounted on the shaft 19.
    This housing 66 is formed by a recess 86 of the wall 65 of the machine. This wall 65 is in the example described a rear plate 87 of the electric machine, opposite for example on the machine side where the compressor wheel is located. This back plate 87 is for example made of material ...
    The electronic card 62 has a through hole 90 which receives the sensor 61. This orifice 90 receives the recess 86 of the wall. A control card 91 is placed on the electronic card 62. This control card 91 carries the sensor 61, and this control card closes the hole 90 of the electronic card.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    Electrical equipment (1), in particular for a motor vehicle, this electrical equipment comprising: an electric machine (7) comprising a rotary shaft (19), a target (60) mounted on the rotary shaft, a sensor (61) arranged to interact with the target, in particular to deliver information relating to the angular position of the rotary shaft, a card (62; 91) carrying at least one data processing unit (63), the sensor being preferably mounted on this card and electrically connected to the processing unit.
    [2" id="c-fr-0002]
    2. Electrical equipment according to the preceding claim, the target (60) is a magnetic target, preferably arranged to generate a magnetic field extending axially substantially along an axis of rotation of the shaft of the electric machine, and the sensor is sensitive to this magnetic field.
    [3" id="c-fr-0003]
    3. Electrical equipment according to one of the preceding claims, the target is placed at one end of the rotary shaft (19).
    [4" id="c-fr-0004]
    4. Electrical equipment according to one of the preceding claims, the electric machine comprises a wall (65) including a housing (8), wall provided with an opening (66) to the right of which is placed the target.
    [5" id="c-fr-0005]
    5. Electrical equipment according to the preceding claim, the target extends at least partially in the opening (66).
    [6" id="c-fr-0006]
    6. Electrical equipment according to one of claims 4 and 5, the opening opens on the card (62).
    [7" id="c-fr-0007]
    7. Electrical equipment according to one of claims 4 to 6, the opening receives a sealing member (70), in particular made of plastic.
    [8" id="c-fr-0008]
    8. Electrical equipment according to the preceding claim, the sealing member is an insert in the opening.
    [9" id="c-fr-0009]
    9. Electrical equipment according to one of claims 4 to 5, the opening is blind and forms a housing for the target, this housing being advantageously formed by a recess of the wall of the machine.
    [10" id="c-fr-0010]
    10. Electrical equipment according to one of claims 4 to 9, the sensor is mounted on a face of the card or a control card face facing the opening (66).
    [11" id="c-fr-0011]
    11. Electrical equipment according to one of the preceding claims, the card comprises an electrical connector (75) for electrically connecting the sensor and the processing unit, this connector extending in the thickness of the card between the two faces of the card. the map.
    [12" id="c-fr-0012]
    12. Electrical equipment according to one of the preceding claims, the card extends substantially perpendicular to the axis of the shaft of the machine.
    [13" id="c-fr-0013]
    13. Electrical equipment according to one of the preceding claims forming an over-power compressor motor vehicle.
    [14" id="c-fr-0014]
    14. Electrical equipment according to the preceding claim, the compressor comprises a cooling channel (50) arranged to cool at least one electronic assembly comprising the card, this channel receiving a cooling liquid, for example water.
    类似技术:
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    WO2017032872A1|2017-03-02|Motor vehicle electrical equipment
    FR3048035A1|2017-08-25|ELECTRIC COMPRESSOR
    FR3049994A1|2017-10-13|ELECTRIC COMPRESSOR WITH COOLING CIRCUIT
    FR3060237A1|2018-06-15|ELECTRICAL COMPRESSOR WITH IMPROVED SEALING SYSTEM
    同族专利:
    公开号 | 公开日
    EP3157142B1|2019-08-28|
    EP3157142A1|2017-04-19|
    FR3042328B1|2018-09-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2924261A1|2012-11-22|2015-09-30|Mitsubishi Heavy Industries, Ltd.|Supercharger with electric motor and engine device provided with supercharger with electric motor|
    US20140339966A1|2013-05-17|2014-11-20|Denso Corporation|Driving device|CN110486290A|2019-08-02|2019-11-22|中国航空工业集团公司金城南京机电液压工程研究中心|A kind of canned motor pump|DE102009014595A1|2009-03-24|2010-09-30|Magna Powertrain Ag & Co Kg|gear unit|
    DE102011089667A1|2011-12-22|2013-06-27|Robert Bosch Gmbh|Electrical machine of boost recuperation system for motor car, has centering sleeve that is guided in area of bearing bore of bearing plates, and is firmly connected to base portion in radial direction|JP6663467B2|2017-11-22|2020-03-11|三菱重工業株式会社|Centrifugal compressor and supercharger|
    WO2020086095A1|2018-10-26|2020-04-30|Borgwarner Inc.|Rotating machine and method of using the same|
    FR3088501B1|2018-11-08|2021-10-22|Valeo Equip Electr Moteur|DEVICE FOR DETECTION OF THE ANGULAR POSITION OF A ROTOR OF A ROTATING ELECTRIC MACHINE|
    法律状态:
    2016-10-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-04-14| PLSC| Publication of the preliminary search report|Effective date: 20170414 |
    2017-10-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-10-30| PLFP| Fee payment|Year of fee payment: 4 |
    2019-10-31| PLFP| Fee payment|Year of fee payment: 5 |
    2020-10-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-10-29| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1559682|2015-10-12|
    FR1559682A|FR3042328B1|2015-10-12|2015-10-12|ELECTRICAL EQUIPMENT, IN PARTICULAR FOR MOTOR VEHICLE|FR1559682A| FR3042328B1|2015-10-12|2015-10-12|ELECTRICAL EQUIPMENT, IN PARTICULAR FOR MOTOR VEHICLE|
    EP16190727.4A| EP3157142B1|2015-10-12|2016-09-27|Electrical system, in particular for a motor vehicle|
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