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    • 专利摘要:
    A position sensing device (500) for mounting in a housing that includes an electrical machine and an electronic control device of the electric machine, for transferring a position signal from the machine to said electronic control device the device (500) comprising: - a position sensor (501); - a support (502) on which the position sensor (501) is to be mounted, the support (502) being configured to be received against walls of a non-opening hole within said housing to achieve, at least in part, the holding in place of said device (500).
    公开号:FR3040565A1
    申请号:FR1557890
    申请日:2015-08-24
    公开日:2017-03-03
    发明作者:Philippe Baudesson；Vincent Guibet；Fabien Guerin；Patrick Lebrasseur；Amaury Rouet；Amine Bencheikh
    申请人:Valeo Systemes de Controle Moteur SAS；
    IPC主号:
    专利说明:

    POSITION DETECTING DEVICE FOR MOUNTING IN A HOUSING INCLUDING AN ELECTRIC MACHINE AND ELECTRONIC DEVICE FOR CONTROLLING THE ELECTRIC MACHINE
    The present invention relates to an assembly comprising a connection device between an electrical machine and an electronic control device of the machine, and a sealing member, for applications in the field of the automobile. The invention also relates to an electric supercharger comprising an electric machine and its electronic control device electrically connected by an assembly according to the invention.
    In the case of a diesel engine, the lag time of a gas supercharger is responsible for the emission of particles when, in a phase of acceleration at low speed, the injection system tries to provide the requested power by injecting a surplus of fuel.
    Ecological considerations, including the fight against global warming by reducing CO2 emissions, have led OEMs to offer automobile manufacturers electric superchargers that improve the dynamic response of low-displacement, low-displacement internal combustion engines. diet.
    In particular, the company VALEO SYSTEMES DE CONTROLELE MOTEUR proposes in its international patent application WO 2013/045821 the implementation of an electric supercharger to assist the gas turbocharger at the moment of depression of the accelerator pedal. . Unlike conventional superchargers driven by exhaust gases, the electric supercharger, ie powered by an electric motor, has an instantaneous response time, and improves engine torque at low speeds. and acceleration. This system considerably reduces the engine capacity of the combustion engines, thus reducing fuel consumption.
    However, in some embodiments of such a system, it may be difficult to connect the phase inputs of the electric motor to an electronic engine control device. This is due to the fact that the phase inputs of the motor are most often close to the axis of rotation of the motor, and also to the fact that there are sealing stresses between the turbine part and the electrical part, as the indicates the international patent application WO2005 / 024202. In addition, in order to control the motor, a position sensor is typically used to detect the position of the motor. It is preferable that this sensor is closer to the engine which is difficult to combine with the constraints mentioned above. The invention aims to improve the integration of the position sensor in an electrical equipment comprising an electric machine having an integrated electronic control device, in particular in an electric supercharger compressor where sealing constraints must be respected. To this end, the invention relates to a position detection device for mounting in a housing which comprises an electric machine and an electronic control device of the electric machine, for transferring a position signal from the machine to said electronic device. control, the detection device comprising: - a position sensor, - a support on which the position sensor is intended to be mounted, the support being configured to be received against the walls of a non-through hole inside said housing to achieve, at least in part, the holding in place of said detection device.
    Thanks to the support, the position sensor is easily manipulated to be mounted in the housing.
    According to one embodiment, the support comprises: a first portion intended to receive said position sensor, said portion being located at a first end of the support in order to allow detection of the position of the electrical machine by the position sensor, and a second portion extending from said first portion to a second end of the support, said first and second portions being configured to be received against the walls of the non-through hole to maintain in place, at least in part, said device detection.
    According to one embodiment, the device comprises at least one electrical connection element for electrically connecting the position sensor with the electronic control device.
    According to one embodiment, the electrical connection element is integral with said support.
    According to one embodiment, the electrical connection element is a tongue.
    According to one embodiment, the tongue is substantially rectilinear along the second portion and comprises a recess substantially at the second end.
    According to one embodiment, said electrical connection element extends from said first portion which receives the position sensor to the second end of the support.
    According to one embodiment, the electrical connection element comprises an end located at the second end of the support which is intended to be attached to an electrical terminal of the electronic control device.
    According to one embodiment, the sensor comprises a body, and the first portion of the support comprises a surface on which an edge of the body of the sensor is intended to be in abutment, and further comprises an opening so as to reveal a central portion. of the sensor body.
    According to one embodiment, the support comprises at least one protrusion extending from the second portion and intended to bear on a bearing formed by a side wall of the hole.
    According to one embodiment, the second portion of the support comprises at least one rod extending between the first end and the second end of the support.
    According to one embodiment, the support comprises at least a third portion extending transversely from said rod and engaging with the electrical connection element.
    According to one embodiment, the support comprises two rods extending from the first portion and interconnected by the at least one third portion. The invention further relates to electrical equipment comprising: - an electric machine, - an electronic control device for controlling the electric machine, - a housing housing the electrical machine in a first housing, and the electronic control device in a second housing. housing, the two housings being sealed with respect to each other, - a detection device according to the invention for measuring a position of the electrical machine and housed in a sealing member contributing to the seal between the first housing and the second housing.
    According to one embodiment, said sealing member comprises a housing comprising said detection device, said housing being configured so that the position sensor of the detection device is positioned vis-à-vis a rotation shaft of the electrical machine so as to detect a signal emitted by a corresponding element carried by the rotation shaft.
    According to one embodiment, the detection device is held in place by its support being received against the walls of the housing and by a bearing of the electronic control device on the support of the detection device. The invention also relates to a supercharger compressor of a motor vehicle comprising an electrical equipment according to the invention.
    In particular, a terminal of the electrical machine designates a phase of the electric machine. The invention will be described in detail in the following description in conjunction with the accompanying drawings. It should be noted that these drawings have no other purpose than to illustrate the text of the description and do not constitute in any way a limitation of the scope of the invention.
    Figure 1 is a top view of an electric part of an electric supercharger known from the state of the art showing an electronic power board.
    Figures 2 and 3 are perspective views of a connection device provided with a sealing member forming an assembly.
    Figure 4 is an exploded view of all of Figures 2 and 3.
    FIG. 5 represents the connection device of FIGS. 2 to 4.
    Figure 6 is a radial half-section of the assembly mounted in a limp, the electric machine is not shown.
    Figure 7 is another radial sectional view in which the electric machine is shown.
    Figure 8 is a top view of an electrical equipment comprising an electric machine, the assembly, and an electronic control device of the electric machine.
    Figure 9 is an exploded view of the electrical equipment, the electric machine and the electronic control device not being shown.
    Fig. 10 is an exploded view of an electric supercharger comprising electrical equipment.
    Figures 11 to 15 illustrate a device comprising a position sensor usable in the electrical equipment, in particular in the assembly.
    FIG. 1 illustrates an electrical connection between terminals 1, in particular phase inputs, of a rotating electrical machine and connection pieces 3 of an electronic control device 4 of the machine in an electric supercharger 2. electronic control device comprises for example an electronic power card 4.
    The stator of the machine makes a first diameter of substantially 40 mm and the power electronic card 4 makes a second diameter of substantially 110 mm. The terminals 1 of the machine are disposed on a bearing of the compressor housing at predetermined angular intervals around the axis of rotation of the machine, at a first predetermined distance from the axis of rotation, equal to at most 20 mm. These terminals 1 of the machine then go out in the middle of the power electronic card 4 to be connected to the connection pieces 3 of the electronic card 4. The presence of these connection pieces 3 in the middle of the power card 4 limits the possibilities placement and routing of the electronic components 5 of the card 4.
    In addition, the electronic components 5 are not protected vis-à-vis the machine part of the supercharger 2, because there is no seal between the machine part and the part containing the electronic control device. Metal particles from the machine part can come into the electronic control device 4 to cause parasitic short circuits.
    Figures 2, 3, 4 illustrate an example of an assembly 6 according to the invention for providing a tight electrical connection between the electrical machine and its electronic control device. The assembly 6 comprises a connection device 7 which is intended to electrically connect the electrical machine 30 and the electronic control device 40 of the machine, which are, for example, housed in a sealed manner in a housing 20 as illustrated in FIG. .
    A sealing member 12 is sealingly attached to the connection device 7. For example, a ring 17, forming a seal, cooperates with a circumferential groove on a side 182 of the connection device 7 and the body sealing 12, in particular an edge of the sealing member 12, to ensure a sealing contact between the sealing member 12 and the connection device 7. However, the sealing contact between the sealing member 12 and the connecting device 7 could be made without the ring 17, for example by providing integral seals with the sealing member 12 and / or the connection device 7. The sealing member 12 comprises a housing 120 having a position sensor. For the sake of clarity, the position sensor is not shown in FIGS. 2 to 4. The position sensor is intended to measure a position of the electrical machine 30. When the first sealing member 12 is attached to the connection device 7, the housing 120 extends mainly in a longitudinal direction XX 'of the connection device 7 as shown in Figure 5 which will be described later.
    By integrating the position sensor of the electrical machine into the sealing member 12, the compactness of the assembly comprising the electrical machine 30 and the electronic control device 40 of the machine is improved.
    The connection device 7 comprises in particular a part 9 which will be electrically connected with the electrical machine 30, and a part 10 which will be electrically connected with the electronic control device 40.
    In particular, the sealing member 12 comes sealingly between the part 9 of the connection device which is intended to be electrically connected to the electrical machine, and the part 10 of the connection device which is intended to be electrically connected with the electronic control device 4. In particular, the sealing member forms a cover 120 which sealingly covers the part 9 intended to be connected to the machine 30. Thus, when the connection device 7 is mounted on the housing of the machine, the sealing member contributes to the sealed separation between the part 201 of the housing 20 comprising the machine 30 and the part 202 of the housing 20 comprising the electronic control device 40. The sealing member 12 could be realized for example with resin. Additional sealing should then be provided to prevent the resin from flowing into the machine 30.
    In particular, when the sealing member 12 is mounted on the connection device 7, the housing 120 of the sensor extends on the side of the part 9 of the connection device 7 which is intended to be electrically connected with the electrical machine. 30. Thus, the position sensor can be positioned near the rotation shaft of the machine 30 which is in the same area as the terminals of the machine.
    The connection device 7 is illustrated in FIG. 5. The part 9 which is intended to be electrically connected to the electrical machine 30 is in particular situated in a central part of the connection device 7. The part 10 of the connection device 7 which is intended to to be electrically connected with the electronic control device 40 of the machine is in particular located at the periphery of the connection device 7, radially with respect to the part 9 which is intended to be electrically connected to the electrical machine 30.
    In particular, the part which is intended to be electrically connected with the electrical machine 30 comprises a plurality of first electrical terminals 9 intended to be attached to respective terminals of the electrical machine 30, in particular phase inputs of the electrical machine 30; and the part of the connection device 7 which is intended to be electrically connected with the electronic control device 40 of the machine comprises a plurality of second electrical terminals 10 intended to be attached to corresponding electrical terminals of the electronic control device 40, in particular an electronic power board. The first electrical terminals 9 and the second electrical terminals 10 are connected by electrically conductive bars 8 which are coated with an electrically insulating material. The electrically insulating material may be deposited by overmolding on the busbars. The electrically insulating material is, for example, plastic. The first 8 and second 9 electrical terminals are particularly intended to be connected by a mechanical bonding operation with the corresponding terminals of the machine 30 or the electronic control device 40, such as soldering, welding, screwing or other. In particular, the electrically insulating material together holds the electrically conductive bars 8, for example by means of a cylinder 18 described below.
    For example, the first terminals 9 are arranged substantially at a first distance D1 with respect to the longitudinal direction XX 'of the connection device 7; and the second terminals 10 are arranged around the longitudinal direction XX 'at a second predetermined distance D2, greater than the first predetermined distance D1. For this purpose, the electrically conductive bars 8 extend substantially radially from the first terminals 9. Thus, seen in the longitudinal direction XX ', the bars 8 form substantially a star whose branches are radial. The second predetermined distance D2 makes it possible to position the second terminals 10 at the periphery of the electronic control device 40. Thus, the electrical connection at the electronic control device is made at the periphery of the electronic control device, contrary to the prior art , which frees up space for the positioning of electronic components. In this particular example, the second distance D2 can be limited to 55 mm to correspond to the diameter of the electronic control device.
    In particular, the first terminals 9 and second terminals 10, extend parallel to the longitudinal direction XX 'of the connection device 7 so as to face the corresponding terminals of the electrical machine or the electronic control device. In particular, the first terminals 9 furthermore extend along a circle, the diameter of which is the first predetermined distance D1, centered on the longitudinal direction XX 'of the connection device 7; and the second terminals 10 are in radial planes comprising the longitudinal direction XX 'of the connection device 7.
    In particular, the terminals 8, 9 and their respective connection bars 8 are grouped at angular positions with respect to the longitudinal direction XX 'of the connection device 7. This is particularly advantageous when the electronic control device 4 comprises power modules. regularly distributed over angular positions, each of the modules having two electrical terminals which will be connected to two second terminals 10 of the connection device 7.
    In particular, the electrically insulating material of the connection device 7 forms a hollow cylinder 18 extending in the longitudinal direction XX 'of the connection device 7. The first electrical terminals 9 extend in the internal housing 180 of the cylinder 18 from the side internal wall of the cylinder. The inner housing 180 may be centered on the longitudinal direction XX 'of the connection device 7 and / or extend over the entire height of the cylinder 18. The second electrical terminals 10 extend from the lateral outer wall of the cylinder 18.
    In particular, the electrically insulating material comprises portions 11 intended to ensure a plating of the connection device 7 on the housing of the electric machine, for example with fixing members, such as inter alia screws 111 positioned in holes 110, or clips. The plating portions 11 extend in particular from the lateral outer wall of the cylinder 18 and can further connect at least a portion of the conduction bars 8 to each other to improve the maintenance of the bars 8, as for example in FIG. 5, the plating portions 11 connect two busbars 8 of the same group.
    In particular, the connection device 7 contributes to the seal between the electrical machine 30 and the electronic control device 40 by making further a sealed contact between the connection device and the housing of the machine. For this purpose, one side of the connection device 7 comprises a portion 181 intended to be sealed in relation to the housing of the electric machine.
    When the connection device 7 is seen in its longitudinal direction XX ', the portion 181 is for example located between the part 9 of the connection device which is intended to be electrically connected with the electrical machine 30, and the part 10 of the device connection which is intended to be electrically connected with the electronic control device 40.
    In the example illustrated in Figures 2 to 5, a first end 181 of the cylinder 18 provides the portion intended to be reported sealingly on the housing of the electric machine. As illustrated in FIGS. 6 and 7, when the connection device 7 is mounted on a wall 203 from which the terminals 301 of the machine 30 extend, the first end 181 of the cylinder 18 comes into sealed contact with the wall 203, and the inner housing 180 of the cylinder 18 receives the terminals 301 of the machine 30, in particular through an opening defined by the first end 181. The first terminals 9 of the connection device 7 can then be connected to the terminals 301 of the machine 30.
    For example, the seal between the housing of the machine 30 and the first end 181 is obtained by a ring 14, forming a seal, which cooperates with the first end 181 of the cylinder 18 and a circumferential groove located in the wall 203 However, the sealing contact between the first end 181 and the housing of the machine could be done without the crown 14, for example by providing integral seals with the first end 181 and / or the housing of the machine 30.
    In particular, the sealing member 12 is attached to a side opposite to the side of the connection device 7 comprising the portion 181 intended to be sealed to the housing of the electric machine 30. In the illustrated example, a second end 182 of the cylinder 18 opposite the first end 181 receives the sealing member 12 in sealing contact. The sealing member 12 seals an opening delimited by the second end 182 of the hollow cylinder 18. For example, a ring 17, forming a seal, cooperates with a circumferential groove located in the second end 182 and sealing member 12, in particular with an edge of the sealing member 12, to ensure a sealing contact between the sealing member 12 and the connecting device 7. However, the sealing contact between the member 12 and the second end 182 could be without the ring 17, for example by providing integral seals with the sealing member 12 and / or the second end 182.
    In particular, the housing of the position sensor consists of a pocket 120 defined in the sealing member 12. The position sensor is received in the pocket 120 through an opening 121 of the pocket 120. The opening 121 is on a face of the sealing member 120 which is opposed to the part 9 of the device which is intended to be electrically connected to the electrical machine 30. In particular, the opening 121 is the only opening of the pocket 120.
    In particular, the sealing member 12 comprises a material free zone 122 intended to receive the rotation shaft 303 of the machine 30. In particular, the material free zone 122 receives an end of the rotation shaft 303 of the machine as illustrated in Figure 7. The position sensor 50 is located at the periphery of the material free zone 122, in particular in its immediate periphery. Providing a zone 122 for receiving the rotation shaft 303 in the sealing member 12 makes it possible to further improve the integration in the electrical equipment which comprises the electronic machine 30 and its electronic control device in the same housing 20. The position sensor 50 is as close as possible to the rotation shaft 303 of the electrical machine 30 for detecting the signal emitted by an element positioned on the rotation shaft 303.
    In particular, the sealing member 12 comprises a face 123 which has a substantially planar portion 123a and a protuberance 123b which extends from the face 123. This protrusion 123a comprises the housing 120 which receives the position sensor 50. The space between the substantially planar portion 123a and the protrusion 123b makes it possible to receive the electrical connection between the connection device 7 and the electrical machine 30. In particular, the first terminals 9 of the connection device 7 are in this space when the sealing member 12 is mounted on the connection device 7; and the terminals 301 of the electrical machine 30 are received therein when the assembly 6 is mounted on the housing of the machine 30.
    In particular, the protrusion 123b delimits the free zone 122 of the sealing member 12, for example by forming a jacket as illustrated in FIG. 3, which further improves the integration into the electrical equipment which comprises the electronic machine 30 and its electronic control device 40 in the same housing 20. In addition, the liner shape improves the mechanical strength of the protrusion 123b.
    In particular, the protrusion 123b which comprises the housing 120 forms a positioning element which ensures a positioning of the assembly 6 relative to the housing of the machine during assembly of the assembly 6 on the housing of the machine. For this purpose, the protrusion 123b is in correspondence with a wall 204 which extends from the wall 203 of the housing of the machine 30. However, the sealing member 12 could comprise another positioning element derived from the sealing member 12. The assembly 6 is particularly advantageous for electrically connecting an electric machine 30 and its electronic control device 40 respecting the seal between them. The assembly 6 allows in particular to ensure the positioning and sealing of the position sensor 50 of the machine. The assembly 6 also makes it possible to free the routing space in the electronic control device 40 by bringing back to the periphery the terminals of the electronic control device 40 which must be connected to the machine 30. The assembly 6 also makes it possible to guarantee a clean assembly process. In the prior art, the terminals 1 from the machine are surrounded by electronic components 5. These components 5 may be damaged by the welding operation of the terminals 1 of the machine with the terminals 3 of the electronic control device. Figure 8 shows an electronic control device 40 of an electrical equipment according to the invention when it is mounted in the housing 20 as will be described later. With the assembly 6 according to the invention, the terminals 22 of the electronic control device 40 are surrounded by fewer electronic components 5 which reduces the risk of damage to these components 5.
    The assembly of the assembly 6 with the electrical machine 30 and the electronic control device 40 will be more precisely described with reference to FIGS. 9 and 10.
    The electrical machine 30 and the electronic control device 40 are housed in the same housing 20. The housing 20 comprises a first housing 201 receiving the electrical machine 30 and a second housing 202 receiving the electronic control device 40 of the machine. A wall 203 separates the first housing 201 from the second housing 202. In particular, the wall 203 is a peripheral wall of the first housing 201 and is substantially perpendicular to the axis of the rotary shaft 303 of the electrical machine 30.
    The assembly of the assembly 6 thus comprises successively: - the mounting of the electrical machine 30 in the first housing 201, the terminals 301 of the machine 30 passing through openings 205 of the partition wall 203; first, the laying of the connection device 7 on the partition wall 203 of the housing 20 with a sealing contact between the connection device 7 and the wall 203 as described above, and an accessibility of the terminals 301 of the machine 30 for a first solder with the terminals 9 of the connection device 7; in a second step, the obstruction by the sealing member of the portion accessible for the first weld to ensure a second level of sealing, in particular by sealingly covering the inner housing 180 of the connection device 7 as previously described; the positioning of the electronic control device 40 in the second housing 202; the electronic control device 40 is in particular introduced into the second housing 202 through an opening which is opposite to the opening through which the electrical machine 30 is introduced into the housing 20; a second weld, consisting of the remote welding in a zone that can be kept clean, of the second terminals of the connection device 7 with the terminals 22 of the electronic control device 40; - The second housing 202 can then be closed by a cover 21. The sealing member 12 and the electronic control device 40 can be mounted at the same time in the housing 20, after the mounting of the connection device 7. In particular , the electronic control device 40 can be mounted on the sealing member 12 by a protruding protrusion 124 (visible in Figures 2 and 4) of the sealing member 12, and the sealing member 12 and the electronic control device 40 are mounted at the same time in the housing 20
    In particular, the connection device 7 thus allows a first weld with each terminal 301 of the machine 30, then in a second step, a second weld to connect with each of the terminals 22 of the electronic control device 40.
    When the assembly 6 is mounted on the partition wall 203, the longitudinal direction XX 'of the connecting device 7 corresponds to the axis of rotation of the machine 30. The first predetermined distance D1 makes it possible to position the first terminals 9 so as to to be welded to the terminals 301 of the machine 30. The second predetermined distance D2 allows to position the second terminals 10 at the periphery of the control device 40, mounted later, to be soldered to the terminals 22 of the electronic control device 40. The sealing member 12 and the portion 181 of the connection device 7 which is sealingly connected to the housing 201 of the electrical machine 30 provide a seal between the first 201 and second 202 housing. Thus, the openings 205, through which the terminals 301 of the machine 30 pass through the wall 203, can do without a seal. The passage of the terminals 301 of the machine 30 through the partition wall 203 can be made leakproof manner. After assembly of the assembly 6, the first 201 and 202 second homes are sealed between them. The partition wall 203 provides a seal between the two housings 201, 202.
    In particular, after assembly of the assembly 6, the position sensor 50 is positioned vis-à-vis radially with respect to the rotation shaft 303 of the machine 30 in order to measure a position. By positioning the position sensor 50 so as to come face to face radially with respect to the rotation shaft of the machine, the position measurement of the machine 30 is simplified with respect to a position where the sensor would be in position. the extension of the axis of rotation of the machine 30.
    The electronic control device 40 comprises for example an electronic power board, which notably comprises an insulated metallized substrate (SMI), as illustrated in FIG. 8. The terminals of the electronic control device 40 are, for example, surface-mounted components 22 (FIG. CMS) on the electronic board. However, the electronic control device 40 could be done differently. For example, it could include power modules placed on a support.
    The terminals 22 occupy a reduced space in the electronic control device 40. The space released in the center of the electronic control device 40, because the terminals 22 are offset at the periphery, allows the placement of a signal interconnector 23 and an output 501 of the position sensor 50.
    The partition wall 203 may comprise housings such as housings 206 which receive components 41 of the electronic control device 40, for example capacitors. These housings are closed on the side of the first housing 201, or provided with a sealed opening, to respect the seal between the first housing 201 and the second housing 202. The electrical equipment 26 made in this way is coupled to a part turbine 24 to form a compact electric supercharger 25 whose integrated electronic control device 40 is easy to mount and protected from polluting particles.
    Figures 11 to 15 illustrate an example of detection device 500 comprising a position sensor 501 usable in the assembly 6 described above. The position sensor 501 is mounted on a support 502. This support 502 is preferably made of an electrically insulating material, for example plastic. This support 502 is received in the housing 120 of the sealing member 12 as illustrated in FIG. 14. The housing 120 forms a non-through hole inside the housing 20. The support 502 of the detection device 500 comes against the walls of the housing 120, which contributes to the retention in place of the detection device 500, and therefore of the position sensor 501, in the housing 20.
    The detection device 500 could be used in another hole positioned inside the casing 20, for example a hole formed in a wall belonging to the casing 20, as long as this hole is not through and the holding of the detection device 500, and in particular the position sensor 501, is obtained at least in part by receiving the support 502 against the walls of the hole, in particular its side walls and its bottom wall.
    Thanks to this support 502, the position sensor 501 is easily manipulated to be mounted in the electrical equipment 26, in particular in the sealing member 12.
    In particular, a first portion 502a of the support 502 of the detection device 500 receives the position sensor 501. This portion 502a is located at a first end of the support 502. When the detection device 500 is mounted in the housing 120 and in the electrical equipment 26, the positioning of the position sensor 501 at this first end allows detection of the position of the electrical machine 30 by the position sensor 501. A second portion 502b of the support 502 of the detection device 500 extends from the first portion 502a towards a second end of the support 502, forming in particular an intermediate portion of the detection device 500. Being received against the walls of the housing 120, these first 502a and second 502b portions allow to maintain in place, at least in part, the detection device 500, in particular the position sensor 501.
    In particular, at least one electrical connection element 503 makes it possible to electrically connect the position sensor 501 with the electronic control device 40. In the example illustrated in the figures, the detection device 500 comprises three electrical connection elements 503. electrical connection members 503 have first ends 503a which connect to respective electrodes 501b of the position sensor 501; and second ends 503b which connect to the electronic control device 40. The device 500 could comprise more or fewer electrical connection elements 503 depending on the number of electrodes of the position sensor 501. The connections of the elements 503 are made for example by welding.
    In particular, the electrical connection elements 503 are integral with the support 502. The electrical connection elements 503 are carried by the support 502 to make the electrical connection of the position sensor 501. Thus, the support 502 allows both the mounting of the position sensor 501 in the housing 20, in particular in the sealing member 12, and the holding of the electrical connection elements 503 between the position sensor 501 and the electronic control device 40.
    In particular, the electrical connection elements are in the form of tabs 503 extending from the first portion 502a of the support 502, along the second portion 502b, to the second end of the support 502.
    The second ends 503b of the electrical connection elements 503 located at the second end of the support 502 can be attached to respective electrical terminals of the electronic control device 40, in particular to supply the position sensor 501 and / or convey a signal of position of the electrical machine 30 from the position sensor 501 to the electronic control device 40. The electrical connection elements 503 are in particular substantially straight along the second portion 502b of the support 502 and each have a recess 503c at the level of the second end of the support 502. This recess 503c makes it possible to approach the electrical terminals of the electronic control device 40 when they are not in the extension of the detection device 500.
    In particular, the second portion 502b of the support 502 comprises two rods 504 which extend from the first portion 502a of the support 502 to the second end of the support 502. The two rods 504 can extend from the edges of the first portion 502a of the support 502. In particular, the electrical connection elements 503 are held integral with the support 502 through third portions 502c. These third portions 502c extend transversely from the rods 504 and engage with the electrical connection elements 503. The third portions 503c can thus connect the two rods 504 therebetween. Areas free of material may separate the third portions 502c therebetween. The detection device 500 may comprise two third portions 502c as illustrated in the figures, or one or more than two. However, the support 502 could comprise a single rod 504, for example extending from a central zone of the first portion 502a of the support 502; with one or more third portions 502c which hold the electrical connection members 503. In particular, the electrical connection members 503 are further engaged with the first portion 502a of the support 502.
    In particular, the support 502 comprises two protuberances 502d which each extend from the second portion 502b. In particular, each protrusion 502d extends from a rod 504. The protuberances 502d bear on a bearing 120a, visible in FIG. 4, formed by a lateral wall of the housing 120. These protuberances 502d bearing against the bearings 120a contribute to an effective maintenance of the detection device 500 in the housing 120.
    In particular, the position sensor 501 comprises a body 501a and electrodes 501b which extend from one side of the body 501a. For example, the body 501a is substantially parallelepipedic. In particular, as illustrated in Figure 15, the first portion 502a of the support 502 has a surface S on which an edge of the body 501a of the sensor 501 bears. The first portion 502a further comprises an opening O which reveals a central portion of the body 501a of the sensor 501 when the sensor 501 is mounted on the first portion 502a of the support 502. Thus, it limits the wall thicknesses between the rotation 303 and the position sensor 501, when the detection device 500 is mounted in the electrical equipment 26, which improves the quality of the detection performed by the position sensor 501.
    In particular, when the detection device 500 is mounted in the sealing member 12, then in the housing 20, the electronic control device 40 comes to bear against the support 502. Thus, the detection device 500 is maintained by part of the fact that the support 502 comes against the walls of the housing 120 and secondly because the electronic control device 40 blocks the detection device 500 in the housing 120 bearing on the support 502 of the device detection 500. The support of the electronic control device 40 against the support 502 of the detection device 500 can be provided by protrusions 124 (visible in Figures 2 and 4) from the sealing member 12 which pass through corresponding openings of the electronic control device 40 to be pegged. The ends of the rods 504 located at the second end of the support 502 can be used to locate the electronic control device 40 with respect to the detection device 500 during its assembly, by coming into corresponding openings of the electronic control device 40. In particular, the electronic control device 40 may comprise a power portion through which a current supplying the electrical machine 30 flows, and a control part intended to supply the components of the power section; the power and control portions being superimposed one opposite the other. In this case, the ends of the rods 504 located at the second end of the support 502 can pass through the power portion to fit in corresponding openings of the control portion. The electrical connection elements 503 then come to connect to the control part. The invention is not limited to the single example described above. The figures represent a particular embodiment which combines several embodiments. However, features related to the embodiments may be independent of each other from one mode to another, or combined with one another, as is apparent from the claims. The invention has been described with a plurality of first terminals 8 and a plurality of second terminals 10 however, the connection device 7 may comprise a single terminal 8 and a single terminal 10, especially when the machine 30 has a single phase.
    In the example illustrated in the figures, the cylinder 18 of the connecting device 7 has a section substantially in the shape of a hexagon, however, a circular shape, or the like, can also be chosen.
    In the examples shown, the sensor 50, 501 is for example a hall effect sensor, a magneto-resistive element sensor, or the like.
    权利要求:
    Claims (16)
    [1" id="c-fr-0001]
    A position sensing device (500) for mounting in a housing (20) which comprises an electric machine (30) and an electronic control device (40) of the electric machine for transferring a position signal of the machine (30) to said electronic control device (40), the device (500) comprising: - a position sensor (501), - a support (502) on which the position sensor (501) is to be mounted, the carrier (502) being configured to be received against the walls of a non-through hole (120) within said housing (20) to effect, at least in part, the retention of said device (500) in place.
    [2" id="c-fr-0002]
    2. Device (500) according to claim 1, wherein the support (502) comprises: a first portion (502a) for receiving said position sensor (501), said portion (502a) being located at a first end of support (502) to allow detection of the position of the electrical machine (30) by the position sensor (501), and - a second portion (502b) extending from said first portion (502a) to a second end of the support (502), said first (502a) and second (502b) portions being configured to be received against the walls of the non-through hole (120) to maintain in place, at least in part, said device (500).
    [3" id="c-fr-0003]
    3. Device (500) according to claim 1 or 2, comprising at least one electrical connection element (503) for electrically connecting the position sensor (501) with the electronic control device.
    [4" id="c-fr-0004]
    4. Device (500) according to claim 3, wherein the electrical connection element (503) is integral with said support (502).
    [5" id="c-fr-0005]
    5. Device (500) according to claim 3 or 4, wherein the electrical connection element (503) is a tab.
    [6" id="c-fr-0006]
    6. Device (500) according to claims 5 and 2, wherein the tongue is substantially rectilinear along the second portion (502b) and comprises a recess (503c) substantially at the second end.
    [7" id="c-fr-0007]
    The device (500) according to claim 2 and one of claims 3 to 6, wherein said electrical connection member (503) extends from said first portion (502a) which receives the position sensor (501) to at the second end of the support (502).
    [8" id="c-fr-0008]
    8. Device (500) according to claim 7, wherein the electrical connection element (503) comprises an end (503b) located at the second end of the support (502) which is intended to be attached against an electrical terminal of the electronic control device (40).
    [9" id="c-fr-0009]
    The device (500) according to one of claims 3 to 8 in combination with claim 2, wherein the position sensor (501) comprises a body (501a), and the first portion (502a) of the support (502). comprises a surface (S) on which an edge of the body (501a) of the sensor is intended to bear, and further comprises an opening (O) so as to reveal a central portion of the body (501a) of the position sensor .
    [10" id="c-fr-0010]
    10. Device (500) according to one of claims 2 to 9, wherein the support (502) comprises at least one protrusion (502d) extending from the second portion (502b) and intended to bear on a bearing (120a) formed by a side wall of the non-through hole (120).
    [11" id="c-fr-0011]
    11. Device (500) according to one of claims 2 to 10, wherein the second portion (502b) of the support (502) comprises at least one rod (504) extending between the first end and the second end of the support (502).
    [12" id="c-fr-0012]
    The device (500) according to claim 11 and 3, wherein the support (502) comprises at least a third portion (502c) extending transversely from said rod (504) and engaging with the electrical connection member. (503).
    [13" id="c-fr-0013]
    13. Device (500) according to claim 12, wherein the support (502) comprises two rods (504) extending from the first portion (502a) and interconnected by the at least a third portion (502c).
    [14" id="c-fr-0014]
    14. Electrical equipment (26) comprising: - an electric machine (30), - an electronic control device (40) for controlling the electric machine, - a housing (20) housing the electric machine (30) in a first housing (201), and the electronic control device (40) in a second housing (202), the two housings (201,202) being sealed with respect to each other, - a device (500) according to one of the preceding claims, for measuring a position of the electrical machine (30) and housed in a sealing member (12) contributing to the seal between the first housing (201) and the second housing (202).
    [15" id="c-fr-0015]
    Equipment (26) according to claim 14, wherein said sealing member (12) comprises a housing (120) having said device (500), said housing (120) being configured so that the position sensor (501 ) of the device (500) is positioned with respect to a rotation shaft of the electric machine (30) so as to detect a signal emitted by a corresponding element carried by the rotation shaft (303).
    [16" id="c-fr-0016]
    16. Equipment (26) according to claim 14 or 15, wherein the device (500) is held in place by its support (502) being received against the walls of the housing (120) and by placing in abutment the electronic device of control (40) on the support (502) of the device (500).
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    同族专利:
    公开号 | 公开日
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    EP3136571A1|2017-03-01|
    EP3136571B1|2021-04-28|
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    CN101295907A|2008-06-23|2008-10-29|刘卫东|Permanent magnet brushless motor with separated Hall position transducer and motor stator|
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    法律状态:
    2016-08-31| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-03| PLSC| Search report ready|Effective date: 20170303 |
    2017-08-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-08-30| PLFP| Fee payment|Year of fee payment: 4 |
    2019-08-30| PLFP| Fee payment|Year of fee payment: 5 |
    2020-08-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-08-31| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1557890A|FR3040565B1|2015-08-24|2015-08-24|POSITION DETECTING DEVICE FOR MOUNTING IN A HOUSING INCLUDING AN ELECTRIC MACHINE AND ELECTRONIC DEVICE FOR CONTROLLING THE ELECTRIC MACHINE|FR1557890A| FR3040565B1|2015-08-24|2015-08-24|POSITION DETECTING DEVICE FOR MOUNTING IN A HOUSING INCLUDING AN ELECTRIC MACHINE AND ELECTRONIC DEVICE FOR CONTROLLING THE ELECTRIC MACHINE|
    EP16183244.9A| EP3136571B1|2015-08-24|2016-08-08|Position detection device intended for being mounted in a housing which includes an electric motor and an electronic device for controlling the electric machine|
    CN201610717702.0A| CN106482679A|2015-08-24|2016-08-24|Position detecting device|
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