EP3322043B1 - Electrical connection connector for a compressor of a motor vehicle air-conditioning system - Google Patents

Electrical connection connector for a compressor of a motor vehicle air-conditioning system Download PDF

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Publication number
EP3322043B1
EP3322043B1 EP17200348.5A EP17200348A EP3322043B1 EP 3322043 B1 EP3322043 B1 EP 3322043B1 EP 17200348 A EP17200348 A EP 17200348A EP 3322043 B1 EP3322043 B1 EP 3322043B1
Authority
EP
European Patent Office
Prior art keywords
base
connector
connector according
dielectric element
cap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17200348.5A
Other languages
German (de)
French (fr)
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EP3322043A1 (en
Inventor
Augustin Bellet
Xin Xu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Japan Co Ltd
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Valeo Japan Co Ltd
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Publication date
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Publication of EP3322043A1 publication Critical patent/EP3322043A1/en
Application granted granted Critical
Publication of EP3322043B1 publication Critical patent/EP3322043B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to an electrical connection device for a compressor. It finds a preferred application in the field of compressors for refrigerant circuits fitted to motor vehicles, for the purposes of air conditioning and / or heating the passenger compartment of such vehicles.
  • the compressor allows the circulation and the raising of the pressure of the refrigerant fluid within the refrigerant circuit.
  • the rotation of such compressors can be operated by means of a pulley connected to the internal combustion engine of the vehicle by a belt, or it can be operated by an electric motor. It is to this second category of compressors that the invention more particularly applies.
  • Such compressors include in particular a device for controlling their electric drive motor, which converts a direct current coming from an on-board network of the vehicle into a sinusoidal current supplying the electric motor.
  • the compressor is placed in a housing comprising different compartments in which are respectively installed, in particular, the compression mechanism proper, the electric motor for driving this compression mechanism, and a control module for this electric motor.
  • These various compartments are separated from each other by walls through which it is necessary to pass in order to connect the various elements which they receive to each other.
  • these connections must be configured to avoid any electrical leaks, especially when these connections are in contact with PAG oil, taking into account the fact that these connections include elements worn to a strong electrical potential.
  • WO2016098033 discloses a connector of the prior art.
  • the object of the invention is to provide a device for connecting such an electric motor to its control module which is simple, easy to install and which has the desired dielectric performance, in particular, in terms of protection against electrical leaks. .
  • the invention set out in claim 1 relates to an electrical connection connector between an electric motor of a compressor and a control module of this electric motor, comprising among others at least one base in which are arranged, on the one hand, receiving housings configured to receive a connection terminal, in particular cables coming from the electric motor, to the connection terminals of the control module as well as, on the other hand, through holes for said connection terminals , said orifices being aligned so that a straight line passes through these orifices, the connector comprising a cover of which at least a first portion is in a longitudinal extension of the receiving housings and a second portion in which are formed holes aligned with the orifices, in which the connector comprises at least one one-piece dielectric element aligned with the orifices and housed between the base and the cover, in particular in é both interposed between a wall of the base and a wall of the cover.
  • the one-piece dielectric element thus disposed forms a barrier which significantly reduces electrical leakage between the terminal or terminals present in the connector and the wall of the compressor surrounding the connection terminals.
  • the one-piece dielectric element blocks the presence of PAG oil by preventing it from spreading between the wall and the terminal (s), thus cutting off all electrical conductivity between these two components brought to opposite electrical potentials.
  • the one-piece dielectric element also contributes to reducing these electrical leaks by moving the lugs and ends of the terminals a little further away from the wall of the housing of the component which receives the connector according to the invention.
  • the one-piece dielectric element is unique in the connector.
  • the one-piece dielectric element is made of an elastomeric material chosen for its dielectric properties and exhibiting mechanical properties allowing simple manufacture by injection into a suitable mold, as well as easy assembly with the aforementioned base and cover to form the connector according to the invention.
  • the one-piece dielectric element comprises at least one plate in which are arranged passage recesses for each connection terminal of the control module.
  • the thickness of the plate is between 0.5 and 5 mm.
  • the thickness of this electric plate is of the order of 1.5 mm.
  • the straight line passes through the center of each orifice, of each hole arranged in the second portion of the cover, and of each recess formed in the plate of the one-piece dielectric element. Holes, holes and recesses are thus aligned.
  • each orifice arranged in the base is coaxial with a recess arranged in the one-piece dielectric element and with a hole made in the second portion of the cover.
  • the receiving housings arranged in the base of the connector according to the invention to receive the lugs making it possible to connect the cables coming from the electric motor to the connection terminals of the control module, are separated from each other by at least one wall.
  • the one-piece dielectric element comprises at least one appendage visible from the outside of the cover, for example by forming a projection oriented towards the outside of the cover of the connector according to the invention.
  • the plate of this one-piece dielectric element comprises at least one coding cavity configured to receive a coding pin arranged in the second portion, previously defined, of the cover of the connector according to the invention.
  • this plate comprises two keying cavities symmetrically, or substantially symmetrically, arranged with respect to one of the passage recesses of the aforementioned terminals, in particular the central recess.
  • the one-piece dielectric element may include one or more beads which emerge from one face of the plate. This or these beads each surround at least one recess. According to one variant, a bead is associated with a single recess.
  • the cover comprises at least one housing for receiving the plate of the one-piece dielectric element.
  • the holes are made through a bottom of the reception housing.
  • This housing for receiving the plate of the one-piece dielectric element is for example arranged in the second portion of the cover of the connector according to the invention.
  • the depth of this housing is substantially equal to the thickness of the plate, and the keying pin (s) defined above originate from the bottom of this receiving housing.
  • this receiving housing comprises a groove configured to receive the appendage of the one-piece dielectric element forming a projection outside the connector according to the invention.
  • This groove opens onto the outside of the connector according to the invention, so as to make the appendix visible once the cover and the base have been assembled.
  • the presence of the keying cavity (s) in the dielectric element and of the keying pin (s) associated with the bottom of the receiving housing, as well as the presence of the receiving groove of the appendage of the one-piece dielectric element allow a single configuration for inserting this dielectric element into the cover of the connector according to the invention.
  • the connector according to the invention is therefore easy to assemble and easily reproducible without risk of error.
  • the cover of the connector according to the invention comprises at least one gutter issuing from an edge of the cover and extending towards the orifices.
  • This gutter extends longitudinally at least one of the receiving housings arranged in the base of this connector to receive the lugs.
  • the cover of the connector according to the invention has as many gutters as the base has housing for receiving connection lugs.
  • the gutters extend parallel to each other.
  • each of these gutters comprises, on the side which faces the orifices, an end wall substantially perpendicular to the direction in which this gutter extends.
  • at least one of these gutters extends towards the interior of a volume of the connector according to the invention delimited by the base and the cover, such that its wall of end is within this volume.
  • the longitudinal dimension of this gutter is defined so that its end wall forms a stop against a movement, in the longitudinal direction of extension of this gutter, of the connection terminal accommodated in the housing of the gutter. reception.
  • Such an end wall thus forms a locking device arranged to limit a translation of at least one terminal, in a longitudinal direction of extension of the base.
  • the gutters are of different lengths. This makes it possible in particular to reduce the size of the connector and thus to facilitate insertion or positioning of the latter in a housing of an electric compressor, for example intended to implement a refrigerant circuit of a motor vehicle.
  • the cables issuing from the electric motor are three in number, said electric motor being supplied with three-phase current.
  • the reception housings, connection terminals and aforementioned orifices are three in number.
  • the base comprises a skirt which at least partially closes at least one of the gutters.
  • the cover further comprises an edge folded over the base and aligned along the line along which the orifices align.
  • the invention extends to a compressor comprising such a connector arranged between an electric motor for driving a compression mechanism, and its control module.
  • the figures 1 and 7 are perspective views of a connector 100 according to the invention installed in a housing 500 of a compressor of an air conditioning and / or heating assembly for a motor vehicle.
  • This box 500 receives a control module for an electric motor which equips the compressor.
  • the control module not shown in the figures, is placed in a first compartment 510 separated from a second compartment 520 by a partition 530.
  • the electric motor is controlled by the control module which is placed in the first compartment 510, the second compartment 520 adjoining a zone for receiving the electric motor.
  • This control module realizes, in particular, the transformation of a direct current coming from a on-board network of the vehicle in a sinusoidal current for supplying the electric motor: by way of non-limiting example, the control module can include an inverter.
  • the control module has connection terminals.
  • the control module comprises three connection terminals, respectively 5a, 5b, 5c.
  • Each of these connection terminals is in the form of an electrically conductive rod, for example a metal rod, which passes through the partition 530 emerging into the second compartment 520 of the housing 500, in which the electric motor is installed.
  • connection terminal 4 is installed at the free end of each cable from the electric motor, and plugged into one of the connection terminals, respectively referenced 5a , 5b or 5c.
  • one terminal is provided per connection terminal, ie three terminals respectively referenced 4a, 4b, 4c.
  • the connector 100 makes it possible to implement a secure electrical connection, by providing a solution for the electrical connection of the connection terminals, respectively 5a, 5b and 5c, with the connection lugs 4a, 4b, 4c which have insulation electrical performance of the connection lugs 4a, 4b, 4c with respect to the partition 530.
  • the connection terminals 5a, 5b, 5c it is essential that no electrical leakage can occur. occur, in particular via PAG oil, under penalty of serious damage to the entire compressor or to the vehicle's on-board network.
  • the connector according to the invention is composed of a base 1, more particularly illustrated by the figure 2 , of a cover 2, more particularly illustrated by the figure 3 , and a one-piece dielectric element 3, more particularly illustrated by the figure 4 .
  • the assembly of the connector 100, with its three main components assembled, is more particularly illustrated by the figures 5 and 6 .
  • the figure 1 shows connector 100 without its base 1.
  • the base 1 of the connector according to the invention is presented in the general form of a block of synthetic material in which are arranged receiving housings for the connection terminals 4a, 4b, 4c.
  • these receiving housings are three in number, respectively referenced 10a, 10b, and 10c.
  • each of these receiving housings 10a, 10b, 10c extends substantially parallel to a longitudinal direction 400 of the base 1.
  • the receiving housings 10a, 10b, and 10c are therefore, according to this embodiment, substantially parallel between them.
  • the receiving housings 10a, 10b, 10c open into a proximal wall 12 of a block forming the base 1.
  • the receiving housings 10a, 10b, 10c do not pass through the block forming the base. 1 right through: their orifices opening into the proximal wall 12 therefore constitute inlet openings through which the connection lugs are inserted into the connector.
  • the receiving housings 10a, 10b, 10c are separated from each other by at least one substantially longitudinal extension flank 120 which forms a bridge between an upper wall 150 of the base. 1 and a lower wall 160 of this base 1.
  • the base 1 comprises at least one groove 130 which opens onto a respective receiving housing.
  • This groove 130 forms a mechanical keying member of each connection terminal received in the receiving housing adjoining this groove 130.
  • the base 1 therefore comprises three grooves 130.
  • the base 1 is produced by injection, into a mold, of a polymer material chosen for its mechanical and dielectric properties.
  • the base 1 also comprises, arranged through the upper wall 150, orifices respectively referenced 11a, 11b, 11c, for the passage of the connection terminals 5a, 5b, 5c. Each terminal thus passes through this upper wall 150 and extends inside the base, that is to say between the upper wall 150 and the lower wall 160.
  • a central axis of each of these orifices 11a, 11b, 11c is substantially perpendicular to the longitudinal direction 400 extension of reception housing 10a, 10b, 10c.
  • the central axis of each of the orifices 11a, 11b, 11c intersects substantially perpendicularly the axis of longitudinal extension of each of the receiving housings 10a, 10b, 10c.
  • each of the orifices 11a, 11b, 11c can open out inside each of the receiving housings 10a, 10b, 10c.
  • Each of the orifices 11a, 11b, 11c being intended to be crossed by one of the connection terminals 5a, 5b, 5c, this configuration makes it possible to achieve the desired electrical connection, by inserting the connection lugs 4 placed at the end of the cables coming from the electric motor, on the connection terminals 5a, 5b, 5c inserted in the holes 11a, 11b, 11c, as shown in figures 1 and 7 .
  • the orifices 11a, 11b, 11c are substantially aligned. More precisely, according to the embodiment more particularly illustrated by the figure 2 , these orifices 11a, 11b, 11c are substantially aligned along a straight line referenced 110, the latter being for example parallel to a plane in which is inscribed a distal wall 13 of the base 1. This distal wall 13 is substantially opposite to the proximal wall 12 into which the receiving housings 10a, 10b, 10c open out. It will be noted that according to an exemplary embodiment, the orifices 11a, 11b, 11c are closer to the distal wall 13 than to the proximal wall 12.
  • the straight line 110 forms, with the longitudinal direction 400 previously defined, an angle 140 less than 90 degrees.
  • the orifices 11a, 11b, 11c are aligned "at an angle" with respect to the longitudinal direction 400.
  • the base 1 also comprises, extending from the proximal wall 12, a skirt 14 which extends the lower wall 160 of the base 1 substantially parallel thereto.
  • the cover 2 of the connector according to the invention is formed of a first portion 200 and of a second portion 210.
  • the first portion 200 of the cover 2 cooperates and / or extends the housings of reception 10a, 10b, 10c arranged in the base 1, in the longitudinal direction 400 of extension of the latter.
  • the second portion 210 for its part, is intended in particular to accommodate the one-piece dielectric element.
  • the second portion 210 of the cover 2 comprises a housing 20, the shapes and dimensions of which are complementary to those of the one-piece dielectric element.
  • the reception housing 20 is therefore of substantially oblong shape. It comprises in particular three holes, respectively referenced 21a, 21b, 21c, through which the connection terminals 5a, 5b, 5c pass.
  • the holes 21a, 21b, 21c, formed in the second portion 210 of the cover 2 are substantially aligned with one another along a straight line 211.
  • the edge 24 extends opposite a bottom 25 of the reception housing 20, in the direction of the base 1.
  • the housing 20 of the one-piece dielectric element also comprises, extending from its bottom 25, at least one keying pin 22 intended to be inserted into a keying cavity of the one-piece dielectric element.
  • the coding pins 22 are two in number and they are substantially symmetrically arranged on either side of one of the holes 21a, 21b, 21c, through which the connection terminals 5a, 5b, 5c pass, here the hole central 21b.
  • the receiving housing 20 also comprises a groove 220, the shapes and dimensions of which are complementary to those of an appendage of the one-piece dielectric element, and which is intended to accommodate the latter.
  • this groove 220 opens outside the second portion 210 of the cover 2. More precisely, the groove 220 is defined, in relation to the appendage of the one-piece dielectric element, such that, when the latter is placed in the reception housing 20 of the cover 2, the appendix forms a projection outside the connector according to the invention.
  • the configuration of the groove 220 in the cover 2 in relation to the configuration of the appendage of the one-piece dielectric element, thus allows a simple and immediate visual verification of the presence of the one-piece dielectric element within the connector 100 according to invention, when the various components thereof are already assembled.
  • the presence of the groove 220 makes it possible to carry out simple coding when the one-piece dielectric element is put in place within the connector according to the invention.
  • At least part of the first portion 200 of the cover 2 forms an extension of the receiving housings 10a, 10b, 10c arranged in the base 1, in the longitudinal direction 400 of extension of these last.
  • the first portion 200 of the cover 2 comprises at least one gutter which forms an extension of at least one of the receiving housings 10a, 10b, 10c arranged in the base 1, in the direction of longitudinal extension 400 of this one.
  • three gutters, respectively referenced 23a, 23b, 23c are arranged in the first portion 200 of the cover 2, each of these gutters extending, in the longitudinal direction 400, one of the receiving housings 10a, 10b, 10c arranged in the 'base 1.
  • the connector 100 according to the invention has as many gutters as there are receiving housings arranged in its base 1. According to the embodiment more particularly described here and illustrated by figure 3 , the gutters 23a, 23b, 23c are substantially parallel to each other.
  • each gutter 23a, 23b, 23c then forms a member for guiding and holding a sheath of a cable coming from the electric motor within the connector 100.
  • Each of these gutters 23a, 23b, 23c comprises, at its end oriented towards the holes 21a, 21b, 21c, an end wall, respectively referenced 230a, 230b, 230c, advantageously perpendicular to the longitudinal direction 400 of this gutter.
  • each of these end walls 230a, 230b, 230c forms an abutment against the movement, in the direction of longitudinal extension 400, of the connection terminal 4 received on the corresponding connection terminal.
  • the connector according to the invention thus comprises a device for locking in translation, an example of which is the end wall of a gutter, connection lugs 4, thus ensuring proper positioning of the connection lug in the connector to avoid any unwanted mechanical interference between this terminal and the terminal concerned, when plugging the connector 100 into the three terminals 5a, 5b, 5c.
  • At least one of the gutters 23a, 23b, 23c extends inside an interior volume 700 delimited by the base 1 and the cover 2 of the connector 100 according to the invention.
  • two gutters respectively referenced 23b and 23c, extend within this interior volume 700, the end wall 230a of the third gutter 23a then forming part of an interior wall of the cover 2 which delimits this interior volume 700
  • the receiving housings 10a, 10b, 10c, as well as the gutters 23a, 23b, 23c, are of different lengths.
  • the end walls 230a, 230b, 230c of the gutters 23a, 23b, 23c are therefore offset from one another in the longitudinal direction 400.
  • edge 24 of the cover 2 follows a contour of the base 1, successively forming three rectilinear sectors inclined with respect to each other.
  • the one-piece dielectric element 3 comprises a plate 30, here of oblong outer shape, or substantially oblong, made of an elastomeric material chosen for its dielectric properties.
  • the dielectric element 3 can be made of natural or synthetic rubber.
  • the thickness of the plate 30 is advantageously chosen between 0.5 and 5 mm. According to a particularly advantageous embodiment of the invention, but not exclusive, the thickness of this plate is of the order of 1.5 mm.
  • the plate 30 is provided with passage recesses intended to be crossed by the connection terminals.
  • these recesses are three in number, respectively referenced 31a, 31b, 31c, and intended to be traversed by the connection terminals respectively 5a, 5b, 5c.
  • the recesses 31a, 31b, 31c are aligned, similarly to the alignment of the holes and / or the alignment of the holes.
  • the one-piece dielectric element 3 also comprises an appendage 32 which extends from the plate 30, for example in the same plane as this one. More precisely, the appendix 32 extends here from one end of the oblong shape of the plate 30, substantially along the major axis of this oblong shape. According to an exemplary embodiment, the length of this appendage is greater than or equal to a length of the groove 220 which receives it in the cover 2.
  • the appendix 32 constitutes a first foolproofing means which aims at the correct positioning of the one-piece dielectric element 3 during the assembly of the components of the connector 100 according to the invention, as well as a means of visually checking the integrity of the device. this connector.
  • the one-piece dielectric element 3 also comprises a bead 34 formed around a recess 31a, 31b, 31c. Such a bead 34 is produced immediately at the periphery of the concerned recess.
  • the bead 34 emerges from a first face of the plate 30 and presents a semi-circular profile when viewed in section.
  • the one-piece dielectric element 3 comprises as many recesses 31a, 31b, 31c as there are beads 34, each bead surrounding a recess.
  • the bead (s) 34 come to bear against the upper wall 150 of the base 1, so as to provide a seal between the base 1 and the cover 2 at the level of the orifices 11a, 11b, 11c of the base 1.
  • a second face of the plate 30 opposite the first face with respect to the plate is flat, in particular being devoid of such beads.
  • the connector 100 comprises a second keying means, formed of keying cavities 33 drilled in the plate 30. More precisely, according to the embodiment illustrated by figure 4 , two coding cavities 33 are made in the plate 30, substantially symmetrically on either side of the central axis of one of the recesses 31a, 31b, 31c through which the connection terminals 5a, 5b, 5c pass, here the central recess 31b.
  • Such a second keying means furthermore guarantees the correct positioning of the one-piece dielectric element 3, in particular such that the beads 34 bear against the base 1.
  • the figures 5 and 6 illustrate the connector 100 according to the invention, assembled, seen from above and seen from below.
  • the appendix 32 forming a projection outside the connector 100, as well as the gutters 23a, 23b, 23c, of lengths different and offset from one another in the longitudinal direction 400.
  • the figures 5 and 6 illustrate more particularly the organization of the base 1, of the cover 2 and of the one-piece dielectric element 3 within the connector 100.
  • the one-piece dielectric element 3 is first of all placed in the reception housing 20 of the cover 2, such that the recesses 31a, 31b, 31c of the one-piece dielectric element 3 and the holes 21a, 21b, 21c with which the reception housing 20 is provided are substantially aligned, and more particularly coaxial.
  • the base 1 is then fitted into the cover 2, such that the orifices 11a, 11b, 11c are aligned with the recesses 31a, 31b, 31c and with the holes 21a, 21b, 21c.
  • holes 21a, 21b, 21c, recesses 31a, 31b, 31c and orifices 11a, 11b, 11c thus forms a set of conduits for the connection terminals 5a, 5b, 5c.
  • these holes 21a, 21b, 21c, recesses 31a, 31b, 31c and orifices 11a, 11b, 11c are stacked substantially coaxially, their stacking axis being substantially perpendicular to the longitudinal direction 400 and perpendicular to a plane in which extends mainly the lower wall 160 of the base 1.
  • these different elements can be stacked differently, insofar as their stacking allows the passage of the rods forming the connection terminals 5a, 5b, 5c respectively through the cover 2, of the dielectric element monobloc 3 and the base 1.
  • the recesses 31a, 31b, 31c, holes 21a, 21b, 21c, and orifices 11a, 11b, 11b can be stacked in an offset manner as long as a duct can be formed to the passage of a connection terminal.
  • the figure 6 shows more particularly the base 1 installed in the cover 2. It highlights in particular the role of the edge 24 of the cover 2, which forms a stop edge of the base 1 in the cover 2, in the longitudinal direction 400 previously defined. Indeed, it emerges from the respective configurations of the base 1 and of the cover 2 that, during the assembly of the connector 100, the distal wall 13 of the base 1 comes to be placed against the inner face of the edge 24 formed by the fold-back provided at the end of the cover 2. This results in a locking in translation of the base 1 relative to the cover 2, in the longitudinal direction 400 defined above.
  • the figure 6 also highlights the role of the skirt 14 arranged on the base 1 and described above.
  • this skirt 14 extends, in the longitudinal direction 400, the lower wall 160 of the base 1, this lower wall 160 being parallel, or substantially parallel, and opposite to the upper wall 150 of this same base. 1, in which the orifices 11a, 11b, 11c are formed.
  • the skirt 14 is placed, once the connector 100 has been assembled, at least in part above the gutters 23a, 23b, 23c, so as to partially or completely close them, depending on the configuration. It thus forms a complementary means of maintaining the cables and their sheaths, accommodated and guided in each of these gutters 23a, 23b, 23c.
  • connection terminals 5a, 5b, 5c do not pass through the lower wall 160 of the base 1 carrying the skirt 14: this allows electrical insulation. complementary to these connection terminals with respect to the other elements received in the compressor housing.
  • the connector 100 therefore makes it possible to simply make a safe and reproducible connection between the connection terminals 5a, 5b, 5c of the control module and the connection lugs 4a, 4b, 4c which equip the ends of cables coming from the motor. electric controlled by this control module.
  • the production of the dielectric element 3 in one-piece form allows rapid and easily reproducible assembly of this connector, in particular thanks to the cavities and coding pins, respectively referenced 33 and 22.
  • the presence of the appendix 32 arranged on the dielectric element one-piece 3 furthermore constitutes an additional keying means during the assembly of the connector 100, while allowing a rapid and efficient visual check of the integrity of this connector.
  • the interposition of the one-piece dielectric element itself generates a barrier which opposes the presence of PAG oil between the partition and the elements brought to high electrical potentials and present in the connector of the invention.
  • the one-piece dielectric element also increases the distance between this partition and these elements.
  • the invention cannot however be limited to the means and configurations described and illustrated here, and it also extends to all equivalent means or configurations and to any technically operative combination of such means.
  • the invention has been described here in the context of an electric motor supplied with three-phase current, it applies to any type of engine, by adjusting the number of receiving housings arranged in the base 1 and, consequently, by adjusting the number of orifices arranged in the same base 1, the number of recesses arranged in the one-piece dielectric element 3, the number of holes with which the cover 2 is provided and the number of gutters configured in this same cover 2.
  • these receiving housings, orifices, holes, recesses and gutters are, according to the invention, in a number equal to the number of cables necessary for the electrical supply of the motor and to the number of connection terminals of the component box of the electrical component supplied by means of this connector according to the invention.

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  • Connector Housings Or Holding Contact Members (AREA)
  • Motor Or Generator Frames (AREA)
  • Compressor (AREA)

Description

La présente invention concerne un dispositif de raccordement électrique pour un compresseur. Elle trouve une application privilégiée dans le domaine des compresseurs pour circuits de fluide réfrigérant équipant les véhicules automobiles, à des fins de climatisation et/ou de chauffage de l'habitacle de tels véhicules.The present invention relates to an electrical connection device for a compressor. It finds a preferred application in the field of compressors for refrigerant circuits fitted to motor vehicles, for the purposes of air conditioning and / or heating the passenger compartment of such vehicles.

Dans de tels circuits, le compresseur permet la mise en circulation et l'élévation de la pression du fluide réfrigérant au sein du circuit de fluide réfrigérant. Selon différents types de véhicules, la rotation de tels compresseurs peut être opérée au moyen d'une poulie reliée au moteur à combustion interne du véhicule par une courroie, ou elle peut être opérée par un moteur électrique. C'est à cette deuxième catégorie de compresseurs que s'applique plus particulièrement l'invention.In such circuits, the compressor allows the circulation and the raising of the pressure of the refrigerant fluid within the refrigerant circuit. According to different types of vehicles, the rotation of such compressors can be operated by means of a pulley connected to the internal combustion engine of the vehicle by a belt, or it can be operated by an electric motor. It is to this second category of compressors that the invention more particularly applies.

De tels compresseurs comprennent notamment un dispositif de commande de leur moteur électrique d'entraînement, qui transforme un courant continu provenant d'un réseau de bord du véhicule en un courant sinusoïdal alimentant le moteur électrique. De manière connue, le compresseur est placé dans un boîtier comportant différents compartiments dans lesquels sont respectivement installés, notamment, le mécanisme de compression proprement dit, le moteur électrique d'entraînement de ce mécanisme de compression, et un module de commande de ce moteur électrique. Ces différents compartiments sont séparés entre eux par des parois au travers desquelles il est nécessaire de passer pour connecter entre eux les différents éléments qu'ils reçoivent. Quel que soit le type de compresseur et de véhicule automobile considérés, ces connexions doivent être configurées pour éviter toutes fuites électriques, notamment quand ces connexions sont en contact d'une huile PAG, en tenant compte du fait que ces connexions comprennent des éléments portés à un fort potentiel électrique. WO2016098033 divulgue un connecteur de l'art antérieur.Such compressors include in particular a device for controlling their electric drive motor, which converts a direct current coming from an on-board network of the vehicle into a sinusoidal current supplying the electric motor. In known manner, the compressor is placed in a housing comprising different compartments in which are respectively installed, in particular, the compression mechanism proper, the electric motor for driving this compression mechanism, and a control module for this electric motor. . These various compartments are separated from each other by walls through which it is necessary to pass in order to connect the various elements which they receive to each other. Whatever the type of compressor and motor vehicle considered, these connections must be configured to avoid any electrical leaks, especially when these connections are in contact with PAG oil, taking into account the fact that these connections include elements worn to a strong electrical potential. WO2016098033 discloses a connector of the prior art.

L'invention a pour but de proposer un dispositif de connexion d'un tel moteur électrique à son module de commande qui soit simple, de mise en place aisée et qui présente les performances diélectriques recherchées, notamment, en termes de protection contre les fuites électriques.The object of the invention is to provide a device for connecting such an electric motor to its control module which is simple, easy to install and which has the desired dielectric performance, in particular, in terms of protection against electrical leaks. .

Dans ce but, l'invention exposée dans la revendication 1 a pour objet un connecteur de raccordement électrique entre un moteur électrique d'un compresseur et un module de commande de ce moteur électrique, comprenant entre autres au moins une embase dans laquelle sont ménagés, d'une part, des logements de réception configurés pour recevoir une cosse de connexion, notamment de câbles issus du moteur électrique, à des terminaux de connexion du module de commande ainsi que, d'autre part, des orifices de passage desdits terminaux de connexion, lesdits orifices étant alignés de sorte à ce qu'une droite passe par ces orifices, le connecteur comprenant un capot dont au moins une première portion est dans un prolongement longitudinal des logements de réception et une deuxième portion dans laquelle sont ménagés des trous alignés sur les orifices, dans lequel le connecteur comprend au moins un élément diélectrique monobloc aligné sur les orifices et logé entre l'embase et le capot, notamment en étant interposé entre une paroi de l'embase et une paroi du capot.For this purpose, the invention set out in claim 1 relates to an electrical connection connector between an electric motor of a compressor and a control module of this electric motor, comprising among others at least one base in which are arranged, on the one hand, receiving housings configured to receive a connection terminal, in particular cables coming from the electric motor, to the connection terminals of the control module as well as, on the other hand, through holes for said connection terminals , said orifices being aligned so that a straight line passes through these orifices, the connector comprising a cover of which at least a first portion is in a longitudinal extension of the receiving housings and a second portion in which are formed holes aligned with the orifices, in which the connector comprises at least one one-piece dielectric element aligned with the orifices and housed between the base and the cover, in particular in é both interposed between a wall of the base and a wall of the cover.

L'élément diélectrique monobloc ainsi disposé forme une barrière qui réduit significativement les fuites électriques entre la ou les cosses présentent dans le connecteur et la paroi du compresseur entourant les terminaux de connexion. L'élément diélectrique monobloc bloque la présence d'huile PAG en évitant qu'elle se répande entre la paroi et la ou les cosses, coupant ainsi toute conductivité électrique entre ces deux composants portés à des potentiels électriques opposés. L'élément diélectrique monobloc contribue également à réduire ces fuites électriques en éloignant un peu plus les cosses et extrémités des terminaux, de la paroi du boîtier du composant qui reçoit le connecteur selon l'invention.The one-piece dielectric element thus disposed forms a barrier which significantly reduces electrical leakage between the terminal or terminals present in the connector and the wall of the compressor surrounding the connection terminals. The one-piece dielectric element blocks the presence of PAG oil by preventing it from spreading between the wall and the terminal (s), thus cutting off all electrical conductivity between these two components brought to opposite electrical potentials. The one-piece dielectric element also contributes to reducing these electrical leaks by moving the lugs and ends of the terminals a little further away from the wall of the housing of the component which receives the connector according to the invention.

Selon un aspect de l'invention, l'élément diélectrique monobloc est unique dans le connecteur.According to one aspect of the invention, the one-piece dielectric element is unique in the connector.

Avantageusement, l'élément diélectrique monobloc est réalisé dans un matériau élastomère choisi pour ses propriétés diélectriques et présentant des propriétés mécaniques permettant une fabrication simple par injection dans un moule approprié, ainsi qu'un assemblage facile avec l'embase et le capot précités pour former le connecteur selon l'invention.Advantageously, the one-piece dielectric element is made of an elastomeric material chosen for its dielectric properties and exhibiting mechanical properties allowing simple manufacture by injection into a suitable mold, as well as easy assembly with the aforementioned base and cover to form the connector according to the invention.

Selon une caractéristique de l'invention, l'élément diélectrique monobloc comprend au moins une plaque dans laquelle sont agencés des évidements de passage de chaque terminal de connexion du module de commande. Avantageusement, pour permettre une isolation électrique optimale des terminaux de connexion, l'épaisseur de la plaque est comprise entre 0.5 et 5 mm. Selon un mode de réalisation particulièrement avantageux de l'invention, l'épaisseur de cette plaque électrique est de l'ordre de 1.5 mm.According to one characteristic of the invention, the one-piece dielectric element comprises at least one plate in which are arranged passage recesses for each connection terminal of the control module. Advantageously, to allow Optimal electrical insulation of the connection terminals, the thickness of the plate is between 0.5 and 5 mm. According to a particularly advantageous embodiment of the invention, the thickness of this electric plate is of the order of 1.5 mm.

Selon une caractéristique de l'invention, la droite passe par le centre de chaque orifice, de chaque trou agencé dans la deuxième portion du capot, et de chaque évidement ménagé dans la plaque de l'élément diélectrique monobloc. Orifices, trous et évidements sont ainsi alignés.According to one characteristic of the invention, the straight line passes through the center of each orifice, of each hole arranged in the second portion of the cover, and of each recess formed in the plate of the one-piece dielectric element. Holes, holes and recesses are thus aligned.

La combinaison d'un évidement, d'un trou et d'un orifice une fois empilés dans le connecteur selon l'invention, délimite un conduit de passage d'un terminal de connexion du module de commande, un tel conduit tendant à isoler électriquement le terminal concerné. Selon un mode de réalisation avantageux, mais non exclusif de l'invention, une fois l'embase assemblée avec l'élément diélectrique monobloc et le capot pour former le connecteur selon l'invention, chaque orifice agencé dans l'embase est coaxial avec un évidement agencé dans l'élément diélectrique monobloc et avec un trou ménagé dans la deuxième portion du capot.The combination of a recess, a hole and an orifice once stacked in the connector according to the invention, delimits a passage duct of a connection terminal of the control module, such a duct tending to electrically insulate the terminal concerned. According to an advantageous embodiment, but not exclusive of the invention, once the base has been assembled with the one-piece dielectric element and the cover to form the connector according to the invention, each orifice arranged in the base is coaxial with a recess arranged in the one-piece dielectric element and with a hole made in the second portion of the cover.

Avantageusement, les logements de réception, agencés dans l'embase du connecteur selon l'invention pour recevoir les cosses permettant de connecter les câbles issus du moteur électrique aux terminaux de connexion du module de commande, sont séparés les uns des autres par au moins une paroi.Advantageously, the receiving housings, arranged in the base of the connector according to the invention to receive the lugs making it possible to connect the cables coming from the electric motor to the connection terminals of the control module, are separated from each other by at least one wall.

Selon différentes caractéristiques de l'invention, prises séparément ou en combinaison, l'élément diélectrique monobloc comporte au moins un appendice visible depuis l'extérieur du capot, en formant par exemple une saillie orientée vers l'extérieur du capot du connecteur selon l'invention.According to different characteristics of the invention, taken separately or in combination, the one-piece dielectric element comprises at least one appendage visible from the outside of the cover, for example by forming a projection oriented towards the outside of the cover of the connector according to the invention.

La plaque de cet élément diélectrique monobloc comporte au moins une cavité de détrompage configurée pour accueillir un pion de détrompage agencé dans la deuxième portion, précédemment définie, du capot du connecteur selon l'invention. Selon un mode de réalisation avantageux de l'invention, cette plaque comporte deux cavités de détrompage symétriquement, ou sensiblement symétriquement, agencées par rapport à l'un des évidements de passage des terminaux précédemment cités, notamment l'évidement central.The plate of this one-piece dielectric element comprises at least one coding cavity configured to receive a coding pin arranged in the second portion, previously defined, of the cover of the connector according to the invention. According to an advantageous embodiment of the invention, this plate comprises two keying cavities symmetrically, or substantially symmetrically, arranged with respect to one of the passage recesses of the aforementioned terminals, in particular the central recess.

On notera que l'élément diélectrique monobloc peut comporter un ou plusieurs bourrelets qui émergent d'une face de la plaque. Ce ou ces bourrelets entourent chacun au moins un évidement. Selon une variante, un bourrelet est associé à un unique évidement.It will be noted that the one-piece dielectric element may include one or more beads which emerge from one face of the plate. This or these beads each surround at least one recess. According to one variant, a bead is associated with a single recess.

Plus précisément, le capot comporte au moins un logement d'accueil de la plaque de l'élément diélectrique monobloc. Les trous sont ménagés au travers d'un fond du logement d'accueil. Ce logement d'accueil de la plaque de l'élément diélectrique monobloc est par exemple agencé dans la deuxième portion du capot du connecteur selon l'invention. Avantageusement, la profondeur de ce logement est sensiblement égale à l'épaisseur de la plaque, et le ou les pions de détrompage précédemment définis sont issus du fond de ce logement de réception.More specifically, the cover comprises at least one housing for receiving the plate of the one-piece dielectric element. The holes are made through a bottom of the reception housing. This housing for receiving the plate of the one-piece dielectric element is for example arranged in the second portion of the cover of the connector according to the invention. Advantageously, the depth of this housing is substantially equal to the thickness of the plate, and the keying pin (s) defined above originate from the bottom of this receiving housing.

Avantageusement, les trous de la deuxième portion sont ménagés plus spécifiquement dans le fond de ce logement d'accueil. De plus, selon une caractéristique avantageuse de l'invention, ce logement d'accueil comporte une gorge configurée pour recevoir l'appendice de l'élément diélectrique monobloc formant saillie à l'extérieur du connecteur selon l'invention. Cette gorge débouche sur l'extérieur du connecteur selon l'invention, de sorte à rendre visible l'appendice une fois le capot et l'embase assemblés.Advantageously, the holes in the second portion are made more specifically in the bottom of this reception housing. In addition, according to an advantageous characteristic of the invention, this receiving housing comprises a groove configured to receive the appendage of the one-piece dielectric element forming a projection outside the connector according to the invention. This groove opens onto the outside of the connector according to the invention, so as to make the appendix visible once the cover and the base have been assembled.

La présence du ou des cavités de détrompage dans l'élément diélectrique et du ou des pions de détrompage associés au fond du logement d'accueil, ainsi que la présence de la gorge d'accueil de l'appendice de l'élément diélectrique monobloc autorisent une unique configuration d'insertion de cet élément diélectrique dans le capot du connecteur selon l'invention. Le connecteur selon l'invention est donc ainsi d'un montage simple et facilement reproductible sans risque d'erreur.The presence of the keying cavity (s) in the dielectric element and of the keying pin (s) associated with the bottom of the receiving housing, as well as the presence of the receiving groove of the appendage of the one-piece dielectric element allow a single configuration for inserting this dielectric element into the cover of the connector according to the invention. The connector according to the invention is therefore easy to assemble and easily reproducible without risk of error.

Le capot du connecteur selon l'invention comprend au moins une gouttière issue d'une arête du capot et s'étendant vers les orifices. Cette gouttière prolonge longitudinalement l'un au moins des logements de réception agencés dans l'embase de ce connecteur pour recevoir les cosses. Le capot du connecteur selon l'invention comporte autant de gouttières que ce que l'embase comporte de logements de réception de cosses de connexion. Avantageusement, les gouttières s'étendent de manière parallèle entre elles.The cover of the connector according to the invention comprises at least one gutter issuing from an edge of the cover and extending towards the orifices. This gutter extends longitudinally at least one of the receiving housings arranged in the base of this connector to receive the lugs. The cover of the connector according to the invention has as many gutters as the base has housing for receiving connection lugs. Advantageously, the gutters extend parallel to each other.

Selon un exemple de réalisation de l'invention, chacune de ces gouttières comporte, du côté qui fait face aux orifices, une paroi d'extrémité sensiblement perpendiculaire à la direction selon laquelle cette gouttière s'étend. Selon une caractéristique de l'invention, l'une au moins de ces gouttières s'étend vers l'intérieur d'un volume du connecteur selon l'invention délimité par l'embase et le capot, de telle manière que sa paroi d'extrémité se situe au sein de ce volume. Avantageusement, la dimension longitudinale de cette gouttière est définie pour que sa paroi d'extrémité forme une butée à l'encontre d'un déplacement, selon la direction longitudinale d'extension de cette gouttière, de la cosse de connexion accueillie dans le logement de réception. Une telle paroi d'extrémité forme ainsi un dispositif de blocage agencé pour limiter une translation d'au moins une cosse, selon une direction longitudinale d'extension de l'embase.According to an exemplary embodiment of the invention, each of these gutters comprises, on the side which faces the orifices, an end wall substantially perpendicular to the direction in which this gutter extends. According to one characteristic of the invention, at least one of these gutters extends towards the interior of a volume of the connector according to the invention delimited by the base and the cover, such that its wall of end is within this volume. Advantageously, the longitudinal dimension of this gutter is defined so that its end wall forms a stop against a movement, in the longitudinal direction of extension of this gutter, of the connection terminal accommodated in the housing of the gutter. reception. Such an end wall thus forms a locking device arranged to limit a translation of at least one terminal, in a longitudinal direction of extension of the base.

Selon l'invention, les gouttières sont de longueurs différentes. Ceci permet notamment de réduire l'encombrement du connecteur et ainsi faciliter une insertion ou un positionnement de ce dernier dans un boîtier d'un compresseur électrique, par exemple destiné à mettre en œuvre un circuit de fluide réfrigérant d'un véhicule automobile.According to the invention, the gutters are of different lengths. This makes it possible in particular to reduce the size of the connector and thus to facilitate insertion or positioning of the latter in a housing of an electric compressor, for example intended to implement a refrigerant circuit of a motor vehicle.

Selon un mode de réalisation particulièrement avantageux, mais non exclusif de l'invention, les câbles issus du moteur électrique sont au nombre de trois, ledit moteur électrique étant alimenté en courant triphasé. Selon ce mode de réalisation, les logements de réception, terminaux de connexion et orifices précités sont au nombre de trois.According to a particularly advantageous embodiment, but not exclusive of the invention, the cables issuing from the electric motor are three in number, said electric motor being supplied with three-phase current. According to this embodiment, the reception housings, connection terminals and aforementioned orifices are three in number.

Selon un mode de réalisation, l'embase comprend une jupe qui ferme au moins partiellement au moins l'une des gouttières. Le capot comprend par ailleurs un bord replié sur l'embase et aligné le long de la droite le long desquels s'alignent les orifices.According to one embodiment, the base comprises a skirt which at least partially closes at least one of the gutters. The cover further comprises an edge folded over the base and aligned along the line along which the orifices align.

L'invention s'étend à un compresseur comportant un tel connecteur disposé entre un moteur électrique d'entraînement d'un mécanisme de compression, et son module de commande.The invention extends to a compressor comprising such a connector arranged between an electric motor for driving a compression mechanism, and its control module.

D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement à la lecture de la description qui suit d'un de ses modes de réalisation préférés, donnée ci-après à titre indicatif, en relation avec les figures suivantes :

  • la figure 1 est une vue d'ensemble d'un connecteur selon l'invention dans un boîtier d'un compresseur pour véhicule automobile,
  • la figure 2 est une vue en perspective de l'embase d'un connecteur selon l'invention,
  • la figure 3 est une vue en perspective du capot d'un connecteur selon l'invention,
  • la figure 4 est une vue en perspective de l'élément diélectrique monobloc d'un connecteur selon l'invention,
  • la figure 5 est une vue de dessous en perspective d'un connecteur assemblé selon l'invention,
  • la figure 6 est une vue de dessus en perspective d'un connecteur assemblé selon l'invention,
  • et la figure 7 est une vue rapprochée de la connexion entre cosses et terminaux de connexion, au moyen d'un connecteur selon l'invention.
Other characteristics, details and advantages of the invention will emerge more clearly on reading the following description of one of its preferred embodiments, given below by way of indication, in relation to the following figures:
  • the figure 1 is an overall view of a connector according to the invention in a housing of a compressor for a motor vehicle,
  • the figure 2 is a perspective view of the base of a connector according to the invention,
  • the figure 3 is a perspective view of the cover of a connector according to the invention,
  • the figure 4 is a perspective view of the one-piece dielectric element of a connector according to the invention,
  • the figure 5 is a bottom perspective view of a connector assembled according to the invention,
  • the figure 6 is a top perspective view of a connector assembled according to the invention,
  • and the figure 7 is a close-up view of the connection between lugs and connection terminals, by means of a connector according to the invention.

Il faut tout d'abord noter que les figures exposent l'invention de manière détaillée pour sa mise en œuvre, mais que lesdites figures peuvent bien entendu servir à mieux définir l'invention, le cas échéant. Par ailleurs, dans ce qui suit, l'invention sera décrite dans son application privilégiée à un compresseur d'un dispositif de chauffage, ventilation et/ou climatisation d'un véhicule automobile, compresseur alimenté par un moteur électrique fonctionnant en courant triphasé, ledit moteur électrique étant logé dans un boîtier du compresseur.It should first of all be noted that the figures set out the invention in detail for its implementation, but that said figures can of course serve to better define the invention, where appropriate. Furthermore, in what follows, the invention will be described in its preferred application to a compressor of a heating, ventilation and / or air conditioning device of a motor vehicle, compressor powered by an electric motor operating with three-phase current, said compressor. electric motor being housed in a compressor housing.

Les figures 1 et 7 sont des vues en perspective d'un connecteur 100 selon l'invention installé dans un boîtier 500 d'un compresseur d'un ensemble de climatisation et/ou de chauffage pour un véhicule automobile. Ce boîtier 500 reçoit un module de commande d'un moteur électrique qui équipe le compresseur. Au sein du boîtier 500, le module de commande, non représenté sur les figures, est placé dans un premier compartiment 510 séparé d'un deuxième compartiment 520 par une cloison 530. Le moteur électrique est contrôlé par le module de commande qui disposé dans le premier compartiment 510, le deuxième compartiment 520 jouxtant une zone de réception du moteur électrique. Ce module de commande réalise, notamment, la transformation d'un courant continu issu d'un réseau de bord du véhicule en un courant sinusoïdal d'alimentation du moteur électrique : à titre d'exemple non limitatif, le module de commande peut comprendre un onduleur.The figures 1 and 7 are perspective views of a connector 100 according to the invention installed in a housing 500 of a compressor of an air conditioning and / or heating assembly for a motor vehicle. This box 500 receives a control module for an electric motor which equips the compressor. Within the housing 500, the control module, not shown in the figures, is placed in a first compartment 510 separated from a second compartment 520 by a partition 530. The electric motor is controlled by the control module which is placed in the first compartment 510, the second compartment 520 adjoining a zone for receiving the electric motor. This control module realizes, in particular, the transformation of a direct current coming from a on-board network of the vehicle in a sinusoidal current for supplying the electric motor: by way of non-limiting example, the control module can include an inverter.

Pour réaliser la connexion électrique entre le moteur électrique et son module de commande, le module de commande comporte des terminaux de connexion. Selon le mode de réalisation plus particulièrement illustré par les figures dans lequel le moteur électrique fonctionne en courant triphasé, le module de commande comporte trois terminaux de connexion, respectivement 5a, 5b, 5c. Chacun de ces terminaux de connexion se présente sous la forme d'une tige électriquement conductrice, par exemple une tige métallique, qui traverse la cloison 530 en émergeant dans le deuxième compartiment 520 du boîtier 500, dans lequel est installé le moteur électrique.To make the electrical connection between the electric motor and its control module, the control module has connection terminals. According to the embodiment more particularly illustrated by the figures in which the electric motor operates with three-phase current, the control module comprises three connection terminals, respectively 5a, 5b, 5c. Each of these connection terminals is in the form of an electrically conductive rod, for example a metal rod, which passes through the partition 530 emerging into the second compartment 520 of the housing 500, in which the electric motor is installed.

Toujours pour réaliser cette connexion électrique entre le module de commande et le moteur électrique, une cosse de connexion 4 est installée à l'extrémité libre de chaque câble issu du moteur électrique, et enfichée sur l'un des terminaux de connexion, respectivement référencé 5a, 5b ou 5c. Dans le cas d'espèce, il est prévu une cosse par terminal de connexion, soit trois cosses respectivement référencées 4a, 4b, 4c.Still to make this electrical connection between the control module and the electric motor, a connection terminal 4 is installed at the free end of each cable from the electric motor, and plugged into one of the connection terminals, respectively referenced 5a , 5b or 5c. In the present case, one terminal is provided per connection terminal, ie three terminals respectively referenced 4a, 4b, 4c.

Le connecteur 100 selon l'invention permet de mettre en œuvre une connexion électrique sécurisée, en fournissant une solution de liaison électrique des terminaux de connexion, respectivement 5a, 5b et 5c, avec les cosses de connexion 4a, 4b, 4c qui présente une isolation électrique performante des cosses de connexion 4a, 4b, 4c par rapport à la cloison 530. En effet, compte tenu des potentiels électriques élevés auxquels sont portés les terminaux de connexion 5a, 5b, 5c, il est essentiel qu'aucune fuite électrique ne puisse survenir, notamment via l'huile PAG, sous peine d'endommagement sérieux de l'ensemble du compresseur ou du réseau de bord du véhicule.The connector 100 according to the invention makes it possible to implement a secure electrical connection, by providing a solution for the electrical connection of the connection terminals, respectively 5a, 5b and 5c, with the connection lugs 4a, 4b, 4c which have insulation electrical performance of the connection lugs 4a, 4b, 4c with respect to the partition 530. In fact, given the high electrical potentials to which the connection terminals 5a, 5b, 5c are carried, it is essential that no electrical leakage can occur. occur, in particular via PAG oil, under penalty of serious damage to the entire compressor or to the vehicle's on-board network.

Pour ce faire, le connecteur selon l'invention est composé d'une embase 1, plus particulièrement illustrée par la figure 2, d'un capot 2, plus particulièrement illustré par la figure 3, et d'un élément diélectrique monobloc 3, plus particulièrement illustré par la figure 4. L'ensemble du connecteur 100, avec ses trois composants principaux assemblés, est plus particulièrement illustré par les figures 5 et 6. La figure 1 montre le connecteur 100 dépourvu de son embase 1.To do this, the connector according to the invention is composed of a base 1, more particularly illustrated by the figure 2 , of a cover 2, more particularly illustrated by the figure 3 , and a one-piece dielectric element 3, more particularly illustrated by the figure 4 . The assembly of the connector 100, with its three main components assembled, is more particularly illustrated by the figures 5 and 6 . The figure 1 shows connector 100 without its base 1.

En référence à la figure 2, l'embase 1 du connecteur selon l'invention se présente sous la forme générale d'un bloc de matière synthétique dans lequel sont agencés des logements de réception des cosses de connexion 4a, 4b, 4c. Selon le mode de réalisation plus particulièrement illustré par les figures, dans lequel le moteur électrique est alimenté par un courant électrique triphasé, ces logements de réception sont au nombre de trois, respectivement référencés 10a, 10b, et 10c.With reference to the figure 2 , the base 1 of the connector according to the invention is presented in the general form of a block of synthetic material in which are arranged receiving housings for the connection terminals 4a, 4b, 4c. According to the embodiment more particularly illustrated by the figures, in which the electric motor is supplied by a three-phase electric current, these receiving housings are three in number, respectively referenced 10a, 10b, and 10c.

Selon le mode de réalisation illustré par la figure 2, chacun de ces logements de réception 10a, 10b, 10c s'étend sensiblement parallèlement à une direction longitudinale 400 de l'embase 1. Les logements de réception 10a, 10b, et 10c sont donc, selon ce mode de réalisation, sensiblement parallèles entre eux.According to the embodiment illustrated by figure 2 , each of these receiving housings 10a, 10b, 10c extends substantially parallel to a longitudinal direction 400 of the base 1. The receiving housings 10a, 10b, and 10c are therefore, according to this embodiment, substantially parallel between them.

Les logements de réception 10a, 10b, 10c débouchent dans une paroi proximale 12 d'un bloc formant l'embase 1. Selon le mode de réalisation, les logements de réception 10a, 10b, 10c, ne traversent pas le bloc formant l'embase 1 de part en part : leurs orifices débouchant dans la paroi proximale 12 constituent donc des bouches d'entrée par lesquelles les cosses de connexion sont insérées dans le connecteur. Selon un aspect exemplatif de l'invention, les logements de réception 10a, 10b, 10c, sont séparés les uns des autres par au moins un flanc 120 d'extension sensiblement longitudinal et qui forme un pont entre une paroi supérieure 150 de l'embase 1 et une paroi inférieure 160 de cette embase 1.The receiving housings 10a, 10b, 10c open into a proximal wall 12 of a block forming the base 1. According to the embodiment, the receiving housings 10a, 10b, 10c do not pass through the block forming the base. 1 right through: their orifices opening into the proximal wall 12 therefore constitute inlet openings through which the connection lugs are inserted into the connector. According to an exemplary aspect of the invention, the receiving housings 10a, 10b, 10c are separated from each other by at least one substantially longitudinal extension flank 120 which forms a bridge between an upper wall 150 of the base. 1 and a lower wall 160 of this base 1.

Selon un mode de réalisation, l'embase 1 comprend au moins une saignée 130 qui s'ouvre sur un logement de réception respectif. Cette saignée 130 forme un organe de détrompage mécanique de chaque cosse de connexion reçu dans le logement de réception attenant à cette saignée 130. L'embase 1 comprend donc trois saignées 130.According to one embodiment, the base 1 comprises at least one groove 130 which opens onto a respective receiving housing. This groove 130 forms a mechanical keying member of each connection terminal received in the receiving housing adjoining this groove 130. The base 1 therefore comprises three grooves 130.

Avantageusement, l'embase 1 est réalisée par injection, dans un moule, d'un matériau polymère choisi pour ses propriétés mécaniques et diélectriques.Advantageously, the base 1 is produced by injection, into a mold, of a polymer material chosen for its mechanical and dielectric properties.

L'embase 1 comporte également, agencés au travers de la paroi supérieure 150, des orifices respectivement référencés 11a, 11b, 11c, de passage des terminaux de connexion 5a, 5b, 5c. Chaque terminal passe ainsi au travers de cette paroi supérieure 150 et s'étend à l'intérieure de l'embase, c'est-à-dire entre la paroi supérieur 150 et la paroi inférieure 160.The base 1 also comprises, arranged through the upper wall 150, orifices respectively referenced 11a, 11b, 11c, for the passage of the connection terminals 5a, 5b, 5c. Each terminal thus passes through this upper wall 150 and extends inside the base, that is to say between the upper wall 150 and the lower wall 160.

Selon le mode de réalisation illustré par les figures, un axe central de chacun de ces orifices 11a, 11b, 11c est sensiblement perpendiculaire à la direction longitudinale 400 d'extension des logements de réception 10a, 10b, 10c. Selon ce mode de réalisation, l'axe central de chacun des orifices 11a, 11b, 11c, coupe sensiblement perpendiculairement l'axe d'extension longitudinale de chacun des logements de réception 10a, 10b, 10c.According to the embodiment illustrated by the figures, a central axis of each of these orifices 11a, 11b, 11c is substantially perpendicular to the longitudinal direction 400 extension of reception housing 10a, 10b, 10c. According to this embodiment, the central axis of each of the orifices 11a, 11b, 11c intersects substantially perpendicularly the axis of longitudinal extension of each of the receiving housings 10a, 10b, 10c.

Selon d'autres modes de réalisation alternatifs, l'axe central de chacun des orifices 11a, 11b, 11c peut déboucher à l'intérieur de chacun des logements de réception 10a, 10b, 10c. Chacun des orifices 11a, 11b, 11c étant destiné à être traversé par l'un des terminaux de connexion 5a, 5b, 5c, cette configuration permet de réaliser la connexion électrique recherchée, par insertion des cosses de connexion 4 placée à l'extrémité des câbles issus du moteur électrique, sur les terminaux de connexion 5a, 5b, 5c insérés dans les orifices 11a, 11b, 11c, comme le montrent les figures 1 et 7.According to other alternative embodiments, the central axis of each of the orifices 11a, 11b, 11c can open out inside each of the receiving housings 10a, 10b, 10c. Each of the orifices 11a, 11b, 11c being intended to be crossed by one of the connection terminals 5a, 5b, 5c, this configuration makes it possible to achieve the desired electrical connection, by inserting the connection lugs 4 placed at the end of the cables coming from the electric motor, on the connection terminals 5a, 5b, 5c inserted in the holes 11a, 11b, 11c, as shown in figures 1 and 7 .

Dans le connecteur 100 selon l'invention, les orifices 11a, 11b, 11c, sont sensiblement alignés. Plus précisément, selon le mode de réalisation plus particulièrement illustré par la figure 2, ces orifices 11a, 11b, 11c sont sensiblement alignés selon une droite référencée 110, cette dernière étant par exemple parallèle à un plan dans lequel s'inscrit une paroi distale 13 de l'embase 1. Cette paroi distale 13 est sensiblement opposée à la paroi proximale 12 dans laquelle débouchent les logements de réception 10a, 10b, 10c. On notera que selon un exemple de réalisation, les orifices 11a, 11b, 11c sont plus proche de la paroi distale 13 que de la paroi proximale 12. La droite 110, le long de laquelle ces orifices sont alignés, forme, avec la direction longitudinale 400 précédemment définie, un angle 140 inférieur à 90 degrés. En d'autres termes, selon ce mode particulier de réalisation non exclusif, les orifices 11a, 11b, 11c, sont alignés "en biais" par rapport à la direction longitudinale 400.In the connector 100 according to the invention, the orifices 11a, 11b, 11c are substantially aligned. More precisely, according to the embodiment more particularly illustrated by the figure 2 , these orifices 11a, 11b, 11c are substantially aligned along a straight line referenced 110, the latter being for example parallel to a plane in which is inscribed a distal wall 13 of the base 1. This distal wall 13 is substantially opposite to the proximal wall 12 into which the receiving housings 10a, 10b, 10c open out. It will be noted that according to an exemplary embodiment, the orifices 11a, 11b, 11c are closer to the distal wall 13 than to the proximal wall 12. The straight line 110, along which these orifices are aligned, forms, with the longitudinal direction 400 previously defined, an angle 140 less than 90 degrees. In other words, according to this particular non-exclusive embodiment, the orifices 11a, 11b, 11c are aligned "at an angle" with respect to the longitudinal direction 400.

Selon l'invention, l'embase 1 comporte également, s'étendant à partir de la paroi proximale 12, une jupe 14 qui prolonge la paroi inférieure 160 de l'embase 1 sensiblement parallèlement à celle-ci.According to the invention, the base 1 also comprises, extending from the proximal wall 12, a skirt 14 which extends the lower wall 160 of the base 1 substantially parallel thereto.

En référence à la figure 3, le capot 2 du connecteur selon l'invention est formé d'une première portion 200 et d'une deuxième portion 210. Dans le connecteur 100 selon l'invention, la première portion 200 du capot 2 coopère et/ou prolonge les logements de réception 10a, 10b, 10c agencés dans l'embase 1, selon la direction longitudinale 400 d'extension de ces derniers. La deuxième portion 210, pour sa part, est notamment destinée à accueillir l'élément diélectrique monobloc.With reference to the figure 3 , the cover 2 of the connector according to the invention is formed of a first portion 200 and of a second portion 210. In the connector 100 according to the invention, the first portion 200 of the cover 2 cooperates and / or extends the housings of reception 10a, 10b, 10c arranged in the base 1, in the longitudinal direction 400 of extension of the latter. The second portion 210, for its part, is intended in particular to accommodate the one-piece dielectric element.

Pour ce faire, la deuxième portion 210 du capot 2 comporte un logement 20 dont les formes et dimensions sont complémentaires de celles de l'élément diélectrique monobloc. Selon le mode de réalisation plus particulièrement décrit, le logement d'accueil 20 est donc de forme sensiblement oblongue. Il comporte notamment trois trous, respectivement référencés 21a, 21b, 21c, de passage des terminaux de connexion 5a, 5b, 5c. De la même manière que les orifices 11a, 11b, 11c agencés dans l'embase 1, les trous 21a, 21b, 21c, ménagés dans la deuxième portion 210 du capot 2 sont sensiblement alignés entre eux le long d'une droite 211. Ils sont également sensiblement alignés avec un bord 24 de la deuxième portion 210 du capot 2, un tel bord 24 étant par exemple replié pour couvrir l'embase 1 lorsque le capot et l'embase sont assemblés. Selon une des caractéristiques du connecteur 100 selon l'invention, le bord 24 s'étend à l'opposé d'un fond 25 du logement d'accueil 20, en direction de l'embase 1.To do this, the second portion 210 of the cover 2 comprises a housing 20, the shapes and dimensions of which are complementary to those of the one-piece dielectric element. According to the embodiment more particularly described, the reception housing 20 is therefore of substantially oblong shape. It comprises in particular three holes, respectively referenced 21a, 21b, 21c, through which the connection terminals 5a, 5b, 5c pass. In the same way as the orifices 11a, 11b, 11c arranged in the base 1, the holes 21a, 21b, 21c, formed in the second portion 210 of the cover 2 are substantially aligned with one another along a straight line 211. They are also substantially aligned with an edge 24 of the second portion 210 of the cover 2, such an edge 24 being for example folded over to cover the base 1 when the cover and the base are assembled. According to one of the characteristics of the connector 100 according to the invention, the edge 24 extends opposite a bottom 25 of the reception housing 20, in the direction of the base 1.

Le logement d'accueil 20 de l'élément diélectrique monobloc comporte également, s'étendant à partir de son fond 25, au moins un pion de détrompage 22 destiné à s'insérer dans une cavité de détrompage de l'élément diélectrique monobloc. Selon le mode de réalisation plus particulièrement illustré par la figure 2, les pions de détrompage 22 sont au nombre de deux et ils sont sensiblement symétriquement disposés de part et d'autre de l'un des trous 21a, 21b, 21c, de passage des terminaux de connexion 5a, 5b, 5c, ici le trou central 21b.The housing 20 of the one-piece dielectric element also comprises, extending from its bottom 25, at least one keying pin 22 intended to be inserted into a keying cavity of the one-piece dielectric element. According to the embodiment more particularly illustrated by figure 2 , the coding pins 22 are two in number and they are substantially symmetrically arranged on either side of one of the holes 21a, 21b, 21c, through which the connection terminals 5a, 5b, 5c pass, here the hole central 21b.

Le logement d'accueil 20 comporte encore une gorge 220 dont les formes et dimensions sont complémentaires de celles d'un appendice de l'élément diélectrique monobloc, et qui est destinée à accueillir ce dernier. Avantageusement, cette gorge 220 débouche à l'extérieur de la deuxième portion 210 du capot 2. Plus précisément, la gorge 220 est définie, en relation avec l'appendice de l'élément diélectrique monobloc, de telle manière que, lorsque ce dernier est placé dans le logement d'accueil 20 du capot 2, l'appendice forme une saillie à l'extérieur du connecteur selon l'invention. La configuration de la gorge 220 dans le capot 2, en relation avec la configuration de l'appendice de l'élément diélectrique monobloc, permet ainsi une vérification visuelle simple et immédiate de la présence de l'élément diélectrique monobloc au sein du connecteur 100 selon l'invention, lorsque les différents composants de celui-ci sont déjà assemblés. Par ailleurs, combinée à la présence des pions de détrompage 22, la présence de la gorge 220 permet de réaliser un détrompage simple lors de la mise en place de l'élément diélectrique monobloc au sein du connecteur selon l'invention.The receiving housing 20 also comprises a groove 220, the shapes and dimensions of which are complementary to those of an appendage of the one-piece dielectric element, and which is intended to accommodate the latter. Advantageously, this groove 220 opens outside the second portion 210 of the cover 2. More precisely, the groove 220 is defined, in relation to the appendage of the one-piece dielectric element, such that, when the latter is placed in the reception housing 20 of the cover 2, the appendix forms a projection outside the connector according to the invention. The configuration of the groove 220 in the cover 2, in relation to the configuration of the appendage of the one-piece dielectric element, thus allows a simple and immediate visual verification of the presence of the one-piece dielectric element within the connector 100 according to invention, when the various components thereof are already assembled. Furthermore, combined with the presence of the coding pins 22, the presence of the groove 220 makes it possible to carry out simple coding when the one-piece dielectric element is put in place within the connector according to the invention.

Dans le connecteur 100 selon l'invention, au moins une partie de la première portion 200 du capot 2 forme un prolongement des logements de réception 10a, 10b, 10c agencés dans l'embase 1, selon la direction longitudinale 400 d'extension de ces derniers.In the connector 100 according to the invention, at least part of the first portion 200 of the cover 2 forms an extension of the receiving housings 10a, 10b, 10c arranged in the base 1, in the longitudinal direction 400 of extension of these last.

Plus précisément, la première portion 200 du capot 2 comporte au moins une gouttière qui forme un prolongement de l'un au moins des logements de réception 10a, 10b, 10c agencés dans l'embase 1, selon la direction d'extension longitudinale 400 de celui-ci. Avantageusement, trois gouttières, respectivement référencées 23a, 23b, 23c sont agencées dans la première portion 200 du capot 2, chacune de ces gouttières prolongeant, selon la direction longitudinale 400, l'un des logements de réception 10a, 10b, 10c agencés dans l'embase 1. D'une manière plus générale, le connecteur 100 selon l'invention compte autant de gouttières que de logements de réception agencés dans son embase 1. Selon le mode de réalisation plus particulièrement décrit ici et illustré par la figure 3, les gouttières 23a, 23b, 23c sont sensiblement parallèles entre elles. Ainsi configurée, chaque gouttière 23a, 23b, 23c, forme alors un organe de guidage et de maintien d'une gaine d'un câble issu du moteur électrique au sein du connecteur 100.More precisely, the first portion 200 of the cover 2 comprises at least one gutter which forms an extension of at least one of the receiving housings 10a, 10b, 10c arranged in the base 1, in the direction of longitudinal extension 400 of this one. Advantageously, three gutters, respectively referenced 23a, 23b, 23c are arranged in the first portion 200 of the cover 2, each of these gutters extending, in the longitudinal direction 400, one of the receiving housings 10a, 10b, 10c arranged in the 'base 1. More generally, the connector 100 according to the invention has as many gutters as there are receiving housings arranged in its base 1. According to the embodiment more particularly described here and illustrated by figure 3 , the gutters 23a, 23b, 23c are substantially parallel to each other. Thus configured, each gutter 23a, 23b, 23c, then forms a member for guiding and holding a sheath of a cable coming from the electric motor within the connector 100.

Chacune de ces gouttières 23a, 23b, 23c comporte, à son extrémité orientée vers les trous 21a, 21b, 21c, une paroi d'extrémité, respectivement référencées 230a, 230b, 230c, avantageusement perpendiculaire à la direction longitudinale 400 de cette gouttière. Selon une caractéristique de l'invention, chacune de ces parois d'extrémité 230a, 230b, 230c forme une butée contre le déplacement, selon la direction d'extension longitudinale 400, de la cosse de connexion 4 accueillie sur le terminal de connexion correspondant. Le connecteur selon l'invention comporte ainsi un dispositif de blocage en translation, dont un exemple est la paroi d'extrémité d'une gouttière, des cosses de connexion 4, garantissant ainsi un bon positionnement de la cosse de connexion dans le connecteur pour éviter toute interférence mécanique non souhaitée entre cette cosse et le terminal concerné, lors de l'enfichage du connecteur 100 sur les trois terminaux 5a, 5b, 5c.Each of these gutters 23a, 23b, 23c comprises, at its end oriented towards the holes 21a, 21b, 21c, an end wall, respectively referenced 230a, 230b, 230c, advantageously perpendicular to the longitudinal direction 400 of this gutter. According to one characteristic of the invention, each of these end walls 230a, 230b, 230c forms an abutment against the movement, in the direction of longitudinal extension 400, of the connection terminal 4 received on the corresponding connection terminal. The connector according to the invention thus comprises a device for locking in translation, an example of which is the end wall of a gutter, connection lugs 4, thus ensuring proper positioning of the connection lug in the connector to avoid any unwanted mechanical interference between this terminal and the terminal concerned, when plugging the connector 100 into the three terminals 5a, 5b, 5c.

Avantageusement, l'une au moins des gouttières 23a, 23b, 23c s'étend à l'intérieur d'un volume intérieur 700 délimité par l'embase 1 et le capot 2 du connecteur 100 selon l'invention. Selon le mode de réalisation plus particulièrement illustré par la figure 3, deux gouttières, respectivement référencées 23b et 23c, s'étendent au sein de ce volume intérieur 700, la paroi d'extrémité 230a de la troisième gouttière 23a formant alors une partie d'une paroi intérieure du capot 2 qui délimite ce volume intérieur 700. Ceci résulte notamment de l'angle 140 inférieur à 90 degrés formé entre la droite 110 d'alignement des trous 21a, 21b, 21c et la direction longitudinale 400 dans laquelle s'étend une gouttière. Il s'ensuit, pour optimiser l'encombrement du connecteur 100, que les logements de réception 10a, 10b, 10c, ainsi que les gouttières 23a, 23b, 23c, sont de longueurs différentes. Les parois d'extrémité 230a, 230b, 230c des gouttières 23a, 23b, 23c sont donc décalées entre elles selon la direction longitudinale 400.Advantageously, at least one of the gutters 23a, 23b, 23c extends inside an interior volume 700 delimited by the base 1 and the cover 2 of the connector 100 according to the invention. According to the embodiment more particularly illustrated by figure 3 , two gutters, respectively referenced 23b and 23c, extend within this interior volume 700, the end wall 230a of the third gutter 23a then forming part of an interior wall of the cover 2 which delimits this interior volume 700 This results in particular from the angle 140 of less than 90 degrees formed between the straight line 110 of alignment of the holes 21a, 21b, 21c and the longitudinal direction 400 in which a gutter extends. It follows, to optimize the size of the connector 100, that the receiving housings 10a, 10b, 10c, as well as the gutters 23a, 23b, 23c, are of different lengths. The end walls 230a, 230b, 230c of the gutters 23a, 23b, 23c are therefore offset from one another in the longitudinal direction 400.

On notera que le bord 24 du capot 2 suit un contour de l'embase 1, en formant successivement trois secteurs rectilignes inclinés les uns par rapport aux autres.It will be noted that the edge 24 of the cover 2 follows a contour of the base 1, successively forming three rectilinear sectors inclined with respect to each other.

En référence à la figure 4, l'élément diélectrique monobloc 3 comprend une plaque 30, ici de forme extérieure oblongue, ou sensiblement oblongue, réalisée dans un matériau élastomère choisi pour ses propriétés diélectriques. A titre d'exemples non exhaustifs, l'élément diélectrique 3 peut être réalisé en caoutchouc naturel ou synthétique. Pour optimiser les performances diélectriques de l'élément monobloc 3, l'épaisseur de la plaque 30 est avantageusement choisie entre 0.5 et 5 mm. Selon un mode de réalisation particulièrement avantageux de l'invention, mais non exclusif, l'épaisseur de cette plaque est de l'ordre de 1.5 mm.With reference to the figure 4 , the one-piece dielectric element 3 comprises a plate 30, here of oblong outer shape, or substantially oblong, made of an elastomeric material chosen for its dielectric properties. By way of non-exhaustive example, the dielectric element 3 can be made of natural or synthetic rubber. To optimize the dielectric performance of the one-piece element 3, the thickness of the plate 30 is advantageously chosen between 0.5 and 5 mm. According to a particularly advantageous embodiment of the invention, but not exclusive, the thickness of this plate is of the order of 1.5 mm.

Dans le connecteur selon l'invention, la plaque 30 est pourvue d'évidements de passage destinés à être traversés par les terminaux de connexion. Selon le mode de réalisation plus particulièrement illustré par la figure 4, ces évidements sont au nombre de trois, respectivement référencés 31a, 31b, 31c, et destinés à être traversés par les terminaux de connexion respectivement 5a, 5b, 5c. Comme le montre la figure 4, les évidements 31a, 31b, 31c, sont alignés, de manière similaire à l'alignement des orifices et/ou à l'alignement des trous.In the connector according to the invention, the plate 30 is provided with passage recesses intended to be crossed by the connection terminals. According to the embodiment more particularly illustrated by figure 4 , these recesses are three in number, respectively referenced 31a, 31b, 31c, and intended to be traversed by the connection terminals respectively 5a, 5b, 5c. As shown in the figure 4 , the recesses 31a, 31b, 31c, are aligned, similarly to the alignment of the holes and / or the alignment of the holes.

Comme le montre la figure 4, l'élément diélectrique monobloc 3 comporte également un appendice 32 qui s'étend à partir de la plaque 30, par exemple dans le même plan que celle-ci. Plus précisément, l'appendice 32 s'étend ici à partir d'une extrémité de la forme oblongue de la plaque 30, sensiblement selon le grand axe de cette forme oblongue. Selon un exemple de réalisation, la longueur de cet appendice est supérieure ou égale à une longueur de la gorge 220 qui la reçoit dans le capot 2.As shown in the figure 4 , the one-piece dielectric element 3 also comprises an appendage 32 which extends from the plate 30, for example in the same plane as this one. More precisely, the appendix 32 extends here from one end of the oblong shape of the plate 30, substantially along the major axis of this oblong shape. According to an exemplary embodiment, the length of this appendage is greater than or equal to a length of the groove 220 which receives it in the cover 2.

L'appendice 32 constitue un premier moyen de détrompage qui vise le bon positionnement de l'élément diélectrique monobloc 3 lors de l'assemblage des composants du connecteur 100 selon l'invention, ainsi qu'un moyen de contrôle visuel de l'intégrité de ce connecteur.The appendix 32 constitutes a first foolproofing means which aims at the correct positioning of the one-piece dielectric element 3 during the assembly of the components of the connector 100 according to the invention, as well as a means of visually checking the integrity of the device. this connector.

L'élément diélectrique monobloc 3 comprend également un bourrelet 34 ménagé autour d'un évidement 31a, 31b, 31c. Un tel bourrelet 34 est réalisé immédiatement à la périphérie de l'évidement concerné. Le bourrelet 34 émerge d'une première face de la plaque 30 et présente un profil semi-circulaire lorsqu'il est vu en coupe. Dans l'exemple de réalisation illustré à la figure 4, l'élément diélectrique monobloc 3 comprend autant d'évidements 31a, 31b, 31c que de bourrelets 34, chaque bourrelet entourant un évidement. Le ou les bourrelets 34 viennent en appui contre la paroi supérieure 150 de l'embase 1, de manière à réaliser une étanchéité entre l'embase 1 et le capot 2 au niveau des orifices 11a, 11b, 11c de l'embase 1. On notera qu'une deuxième face de la plaque 30 opposée à la première face par rapport à la plaque est plate, notamment en étant dépourvue de tels bourrelets.The one-piece dielectric element 3 also comprises a bead 34 formed around a recess 31a, 31b, 31c. Such a bead 34 is produced immediately at the periphery of the concerned recess. The bead 34 emerges from a first face of the plate 30 and presents a semi-circular profile when viewed in section. In the embodiment illustrated on figure 4 , the one-piece dielectric element 3 comprises as many recesses 31a, 31b, 31c as there are beads 34, each bead surrounding a recess. The bead (s) 34 come to bear against the upper wall 150 of the base 1, so as to provide a seal between the base 1 and the cover 2 at the level of the orifices 11a, 11b, 11c of the base 1. On it will be noted that a second face of the plate 30 opposite the first face with respect to the plate is flat, in particular being devoid of such beads.

Le connecteur 100 selon l'invention comprend un deuxième moyen de détrompage, formé de cavités de détrompage 33 percées dans la plaque 30. Plus précisément, selon le mode de réalisation illustré par la figure 4, deux cavités de détrompage 33 sont réalisées dans la plaque 30, sensiblement symétriquement de part et d'autre de l'axe central de l'un des évidements 31a, 31b, 31c de passage des terminaux de connexion 5a, 5b, 5c, ici l'évidement central 31b. Un tel deuxième moyen de détrompage garanti par ailleurs le bon positionnement de l'élément diélectrique monobloc 3, notamment de tel sorte que les bourrelets 34 soient en appui contre l'embase 1.The connector 100 according to the invention comprises a second keying means, formed of keying cavities 33 drilled in the plate 30. More precisely, according to the embodiment illustrated by figure 4 , two coding cavities 33 are made in the plate 30, substantially symmetrically on either side of the central axis of one of the recesses 31a, 31b, 31c through which the connection terminals 5a, 5b, 5c pass, here the central recess 31b. Such a second keying means furthermore guarantees the correct positioning of the one-piece dielectric element 3, in particular such that the beads 34 bear against the base 1.

Les figures 5 et 6 illustrent le connecteur 100 selon l'invention, assemblé, vu de dessus et vu de dessous. Sur la figure 5 est illustré l'appendice 32 formant saillie à l'extérieur du connecteur 100, ainsi que les gouttières 23a, 23b, 23c, de longueurs différentes et décalées entre elles selon la direction longitudinale 400.The figures 5 and 6 illustrate the connector 100 according to the invention, assembled, seen from above and seen from below. On the figure 5 is illustrated the appendix 32 forming a projection outside the connector 100, as well as the gutters 23a, 23b, 23c, of lengths different and offset from one another in the longitudinal direction 400.

Les figures 5 et 6 illustrent plus particulièrement l'organisation de l'embase 1, du capot 2 et de l'élément diélectrique monobloc 3 au sein du connecteur 100. Lors de l'assemblage du connecteur 100, l'élément diélectrique monobloc 3 est tout d'abord placé dans le logement d'accueil 20 du capot 2, de telle manière que les évidements 31a, 31b, 31c de l'élément diélectrique monobloc 3 et les trous 21a, 21b, 21c dont est pourvu le logement d'accueil 20 soient sensiblement alignés, et plus particulièrement coaxiaux. L'embase 1 est ensuite emboîtée dans le capot 2, de telle manière que les orifices 11a, 11b, 11c soient alignés avec les évidements 31a, 31b, 31c et avec les trous 21a, 21b, 21c.The figures 5 and 6 illustrate more particularly the organization of the base 1, of the cover 2 and of the one-piece dielectric element 3 within the connector 100. During the assembly of the connector 100, the one-piece dielectric element 3 is first of all placed in the reception housing 20 of the cover 2, such that the recesses 31a, 31b, 31c of the one-piece dielectric element 3 and the holes 21a, 21b, 21c with which the reception housing 20 is provided are substantially aligned, and more particularly coaxial. The base 1 is then fitted into the cover 2, such that the orifices 11a, 11b, 11c are aligned with the recesses 31a, 31b, 31c and with the holes 21a, 21b, 21c.

L'empilement des trous 21a, 21b, 21c, évidements 31a, 31b, 31c et orifices 11a, 11b, 11c, forme ainsi un ensemble de conduits pour les terminaux de connexion 5a, 5b, 5c. Il est à noter que, selon le mode de réalisation plus particulièrement illustré par les figures 5 et 6, ces trous 21a, 21b, 21c, évidements 31a, 31b, 31c et orifices 11a, 11b, 11c sont empilés sensiblement coaxialement, leur axe d'empilement étant sensiblement perpendiculaire à la direction longitudinale 400 et perpendiculaire à un plan dans lequel s'étend majoritairement la paroi inférieure 160 de l'embase 1.The stack of holes 21a, 21b, 21c, recesses 31a, 31b, 31c and orifices 11a, 11b, 11c, thus forms a set of conduits for the connection terminals 5a, 5b, 5c. It should be noted that, according to the embodiment more particularly illustrated by the figures 5 and 6 , these holes 21a, 21b, 21c, recesses 31a, 31b, 31c and orifices 11a, 11b, 11c are stacked substantially coaxially, their stacking axis being substantially perpendicular to the longitudinal direction 400 and perpendicular to a plane in which extends mainly the lower wall 160 of the base 1.

Selon d'autres modes de réalisation alternatifs, ces différents éléments peuvent être empilés différemment, dans la mesure où leur empilement permet le passage des tiges formant les terminaux de connexion 5a, 5b, 5c au travers respectivement du capot 2, de l'élément diélectrique monobloc 3 et de l'embase 1. Par exemple, les évidements 31a, 31b, 31c, trous 21a, 21b, 21c, et orifices 11a, 11b, 11b, peuvent être empilés de manière décalée tant qu'un conduit peut être formé pour le passage d'un terminal de connexion.According to other alternative embodiments, these different elements can be stacked differently, insofar as their stacking allows the passage of the rods forming the connection terminals 5a, 5b, 5c respectively through the cover 2, of the dielectric element monobloc 3 and the base 1. For example, the recesses 31a, 31b, 31c, holes 21a, 21b, 21c, and orifices 11a, 11b, 11b, can be stacked in an offset manner as long as a duct can be formed to the passage of a connection terminal.

La figure 6 montre plus particulièrement l'embase 1 installée dans le capot 2. Elle met notamment en évidence le rôle du bord 24 du capot 2, qui forme un bord d'arrêt de l'embase 1 dans le capot 2, selon la direction longitudinale 400 précédemment définie. En effet, il ressort des configurations respectives de l'embase 1 et du capot 2 que, lors de l'assemblage du connecteur 100, la paroi distale 13 de l'embase 1 vient se placer contre la face intérieure du bord 24 formé par le repli ménagé à l'extrémité du capot 2. On réalise ainsi un blocage en translation de l'embase 1 par rapport au capot 2, selon la direction longitudinale 400 précédemment définie.The figure 6 shows more particularly the base 1 installed in the cover 2. It highlights in particular the role of the edge 24 of the cover 2, which forms a stop edge of the base 1 in the cover 2, in the longitudinal direction 400 previously defined. Indeed, it emerges from the respective configurations of the base 1 and of the cover 2 that, during the assembly of the connector 100, the distal wall 13 of the base 1 comes to be placed against the inner face of the edge 24 formed by the fold-back provided at the end of the cover 2. This results in a locking in translation of the base 1 relative to the cover 2, in the longitudinal direction 400 defined above.

La figure 6 met également en évidence le rôle de la jupe 14 agencée sur l'embase 1 et décrite précédemment. Comme il a été évoqué précédemment, cette jupe 14 prolonge, selon la direction longitudinale 400, la paroi inférieure 160 de l'embase 1, cette paroi inférieure 160 étant parallèle, ou sensiblement parallèle, et opposée à la paroi supérieure 150 de cette même embase 1, dans laquelle sont ménagés les orifices 11a, 11b, 11c. Selon l'invention, la jupe 14 se place, une fois le connecteur 100 assemblé, au moins en partie au-dessus des gouttières 23a, 23b, 23c, de manière à les obturer partiellement ou totalement, selon la configuration. Elle forme ainsi un moyen complémentaire de maintien des câbles et de leurs gaines, accueillis et guidés dans chacune de ces gouttières 23a, 23b, 23c. Il est à noter que, selon le mode de réalisation plus particulièrement illustré par les figures, les terminaux de connexion 5a, 5b, 5c ne traversent pas la paroi inférieure 160 de l'embase 1 porteuse de la jupe 14 : ceci permet une isolation électrique complémentaire de ces terminaux de connexion par rapport aux autres éléments reçus dans le boîtier du compresseur.The figure 6 also highlights the role of the skirt 14 arranged on the base 1 and described above. As mentioned above, this skirt 14 extends, in the longitudinal direction 400, the lower wall 160 of the base 1, this lower wall 160 being parallel, or substantially parallel, and opposite to the upper wall 150 of this same base. 1, in which the orifices 11a, 11b, 11c are formed. According to the invention, the skirt 14 is placed, once the connector 100 has been assembled, at least in part above the gutters 23a, 23b, 23c, so as to partially or completely close them, depending on the configuration. It thus forms a complementary means of maintaining the cables and their sheaths, accommodated and guided in each of these gutters 23a, 23b, 23c. It should be noted that, according to the embodiment more particularly illustrated by the figures, the connection terminals 5a, 5b, 5c do not pass through the lower wall 160 of the base 1 carrying the skirt 14: this allows electrical insulation. complementary to these connection terminals with respect to the other elements received in the compressor housing.

Le connecteur 100 selon l'invention permet donc de réaliser simplement une connexion sûre et reproductible entre les terminaux de connexion 5a, 5b, 5c du module de commande et les cosses de connexion 4a, 4b, 4c qui équipent les extrémités de câbles issus du moteur électrique contrôlé par ce module de commande. La réalisation de l'élément diélectrique 3 sous forme monobloc permet un assemblage rapide et facilement reproductible de ce connecteur, notamment grâce aux cavités et pions de détrompage, respectivement référencés 33 et 22. La présence de l'appendice 32 agencé sur l'élément diélectrique monobloc 3 constitue, en outre, un moyen de détrompage supplémentaire lors de l'assemblage du connecteur 100, tout en permettant un contrôle visuel rapide et efficace de l'intégrité de ce connecteur. L'interposition de l'élément diélectrique monobloc génère quant à lui une barrière qui s'oppose à la présence d'huile PAG entre la cloison et les éléments portés à des potentiels électriques élevés et présent dans le connecteur de l'invention. L'élément diélectrique monobloc augmente aussi la distance entre cette cloison et ces éléments.The connector 100 according to the invention therefore makes it possible to simply make a safe and reproducible connection between the connection terminals 5a, 5b, 5c of the control module and the connection lugs 4a, 4b, 4c which equip the ends of cables coming from the motor. electric controlled by this control module. The production of the dielectric element 3 in one-piece form allows rapid and easily reproducible assembly of this connector, in particular thanks to the cavities and coding pins, respectively referenced 33 and 22. The presence of the appendix 32 arranged on the dielectric element one-piece 3 furthermore constitutes an additional keying means during the assembly of the connector 100, while allowing a rapid and efficient visual check of the integrity of this connector. The interposition of the one-piece dielectric element itself generates a barrier which opposes the presence of PAG oil between the partition and the elements brought to high electrical potentials and present in the connector of the invention. The one-piece dielectric element also increases the distance between this partition and these elements.

L'invention ne saurait toutefois se limiter aux moyens et configurations décrits et illustrés ici, et elle s'étend également à tous moyens ou configurations équivalents et à toute combinaison techniquement opérante de tels moyens. En particulier, si l'invention a été décrite ici dans le cadre d'un moteur électrique alimenté en courant triphasé, elle s'applique à tout type de moteur, par l'ajustement du nombre de logements de réception agencés dans l'embase 1 et, par conséquent, par l'ajustement du nombre d'orifices agencés dans la même embase 1, du nombre d'évidements agencés dans l'élément diélectrique monobloc 3, du nombre de trous dont est pourvu le capot 2 et du nombre de gouttières configurées dans ce même capot 2. D'une manière générale, ces logements de réception, orifices, trous, évidements et gouttières sont, selon l'invention, en nombre égal au nombre de câbles nécessaires à l'alimentation électrique du moteur et au nombre de terminaux de connexion du boîtier constitutif du composant électrique alimenté par le biais de ce connecteur selon l'invention.The invention cannot however be limited to the means and configurations described and illustrated here, and it also extends to all equivalent means or configurations and to any technically operative combination of such means. In particular, if the invention has been described here in the context of an electric motor supplied with three-phase current, it applies to any type of engine, by adjusting the number of receiving housings arranged in the base 1 and, consequently, by adjusting the number of orifices arranged in the same base 1, the number of recesses arranged in the one-piece dielectric element 3, the number of holes with which the cover 2 is provided and the number of gutters configured in this same cover 2. In general, these receiving housings, orifices, holes, recesses and gutters are, according to the invention, in a number equal to the number of cables necessary for the electrical supply of the motor and to the number of connection terminals of the component box of the electrical component supplied by means of this connector according to the invention.

De même, les formes et géométries spécifiquement décrites ici afin d'optimiser l'encombrement du connecteur 100 selon l'invention dans le boîtier qui l'accueille ne sont pas exclusives, et peuvent être modifiées sans nuire à l'invention, dans la mesure où elles remplissent les fonctionnalités décrites dans le présent document.Likewise, the shapes and geometries specifically described here in order to optimize the size of the connector 100 according to the invention in the housing which accommodates it are not exclusive, and can be modified without harming the invention, to the extent where they fulfill the functionality described in this document.

Claims (16)

  1. Connector (100) providing electrical connection between an electric motor of a compressor and a control module of this electric motor, comprising at least one base (1) in which there are formed, on the one hand, receptacles (10a, 10b, 10c) configured to each receive a connection eye terminal (4) for connecting to connection terminals (5a, 5b, 5c) of the control module and, on the other hand, passage orifices (11a, 11b, 11c) through which said connection terminals (5a, 5b, 5c) can pass, a straight line (110) passing through said orifices (11a, 11b, 11c), the connector (100) comprising a cap (2) of which at least a first portion (200) is in a longitudinal continuation of the receptacles (10a, 10b, 10c) and a second portion (210) in which holes (21a, 21b, 21c) aligned with the orifices (11a, 11b, 11c) are formed, wherein the connector (100) comprises at least one one-piece dielectric element (3) aligned with the orifices (11a, 11b, 11c) and housed between the base (1) and the cap (2), wherein the cap (2) comprises at least one blocking device arranged to limit a translational movement of at least one eye terminal (4) in a longitudinal direction (400) of extension of the base (1), wherein the blocking device is formed by at least one end wall (230a, 230b, 230c) of a channel section (23a, 23b, 23c) originating from the cap (2), and the blocking device is formed by at least one end wall (230a, 230b, 230c) of a channel section (23a, 23b, 23c) originating from the cap (2), and each channel section (23a, 23b, 23c) extends, in the longitudinal direction (400), a receptacle (10a, 10b, 10c) arranged in the base (1), and the cap (2) has as many channel sections (23a, 23b, 23c) as the base (1) has receptacles (10a, 10b, 10c), characterized in that the channel sections (23a, 23b, 23c) are of different lengths, measured in the longitudinal direction (400) .
  2. Connector according to Claim 1, wherein the one-piece dielectric element (3) comprises at least one plate (30) in which cavities (31a, 31b, 31c) for the passage of each connection terminal (5a, 5b, 5c) are arranged.
  3. Connector according to Claim 2, wherein the straight line (110) passes through each orifice (11a, 11b, 11c), hole (21a, 21b, 21c) and recess (31a, 31b, 31c) .
  4. Connector according to Claim 2 or 3, wherein the thickness of the plate (30) of the one-piece dielectric element (3) is between 0.5 mm and 5 mm.
  5. Connector according to any one of Claims 2 to 4, wherein the plate (30) of the one-piece dielectric element (3) comprises at least one poka-yoke cavity (33) configured to accept a poka-yoke peg (22) arranged in the cap (2).
  6. Connector according to Claim 5, wherein the plate (30) comprises two poka-yoke cavities (33) arranged symmetrically with respect to one of the recesses (31b) of the one-piece dielectric element (3).
  7. Connector according to any one of Claims 2 to 6, wherein at least one bead (34) emerges from one face of the plate (30), the bead (34) surrounding at least recess (31a, 31b, 31c).
  8. Connector according to any one of Claims 2 to 7, wherein the cap (2) comprises at least one receptacle (20) to house the plate (30) of the one-piece dielectric element (3).
  9. Connector according to Claim 8, wherein the holes (21a, 21b, 21c) are formed through a bottom (25) of the receptacle (20).
  10. Connector according to any one of the preceding claims, wherein the receptacles (10a, 10b, 10c) are separated from one another by at least one flanking wall (120).
  11. Connector according to any one of the preceding claims, wherein the one-piece dielectric element (3) comprises at least one appendage (32) visible on the outside of the cap (2).
  12. Connector according to any one of the preceding claims, wherein at least one of the channel sections (23a, 23b, 23c) extends inside an interior volume (700) of the connector (100) delimited by the base (1) and by the cap (2) .
  13. Connector according to any one of the preceding claims, wherein the base (1) comprises a skirt (14) which at least partially closes off at least one of the channel sections (23a, 23b, 23c).
  14. Connector according to any one of Claims 2 to 9, wherein the base (1) comprises three receptacles (10a, 10b, 10c) for connection eye terminal (4), three orifices (11a, 11b, 11c), the cap (2) comprising three holes (21a, 21b, 21c) and the one-piece dielectric element (3) comprising three recesses (31a, 31b, 31c).
  15. Connector according to any one of the preceding claims, wherein the cap (2) comprises an edge (24) folded onto the base (1) and aligned along the straight line (110) in which the orifices (11a, 11b, 11c) are aligned.
  16. Compressor for a motor vehicle, comprising at least one electric motor and an electric motor control module, wherein at least one electrical connection of the electric motor to the control module comprises at least one connector (100) according to any one of the preceding claims.
EP17200348.5A 2016-11-10 2017-11-07 Electrical connection connector for a compressor of a motor vehicle air-conditioning system Active EP3322043B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1660880A FR3058582B1 (en) 2016-11-10 2016-11-10 ELECTRICAL CONNECTOR FOR A COMPRESSOR OF AN AIR CONDITIONING SYSTEM OF A MOTOR VEHICLE

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EP3322043A1 EP3322043A1 (en) 2018-05-16
EP3322043B1 true EP3322043B1 (en) 2021-12-08

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FR (1) FR3058582B1 (en)

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Publication number Priority date Publication date Assignee Title
CN110854559A (en) 2018-08-20 2020-02-28 松下·万宝(广州)压缩机有限公司 Terminal sealing cover, upper cover assembly and compressor
FR3095899B1 (en) * 2019-05-06 2021-08-20 Valeo Japan Co Ltd Electrical connection connector for a compressor of an air conditioning installation of a motor vehicle
WO2022242399A1 (en) * 2021-05-17 2022-11-24 安徽威灵汽车部件有限公司 Cover plate assembly, stator, electric motor, compressor and vehicle

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DE102015205209A1 (en) * 2015-03-23 2016-09-29 Volkswagen Aktiengesellschaft Connecting device, in particular for the automotive industry, for connecting end pieces of electrical lines with electrical connection contacts

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JPH10112958A (en) * 1996-10-03 1998-04-28 Hitachi Ltd Terminal box of electric equipment
JP4991664B2 (en) * 2008-09-11 2012-08-01 株式会社豊田自動織機 Electric compressor
CN202651466U (en) * 2012-07-04 2013-01-02 和锲精密电子股份有限公司 Cable connector structure
US20140066741A1 (en) * 2012-08-29 2014-03-06 General Electric Company Disposable ECG Leadwire Connector
FR3007218B1 (en) * 2013-06-14 2015-06-19 Valeo Japan Co Ltd ELECTRICAL CONNECTION DEVICE FOR COMPRESSOR AND COMPRESSOR COMPRISING SUCH AN ELECTRICAL CONNECTION DEVICE
FR3030917B1 (en) * 2014-12-19 2018-08-31 Valeo Japan Co., Ltd. CONNECTOR FOR CONNECTING THE END OF A CABLE TO A TERMINAL

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DE102015205209A1 (en) * 2015-03-23 2016-09-29 Volkswagen Aktiengesellschaft Connecting device, in particular for the automotive industry, for connecting end pieces of electrical lines with electrical connection contacts

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CN108075253A (en) 2018-05-25
FR3058582B1 (en) 2021-08-06
FR3058582A1 (en) 2018-05-11
CN108075253B (en) 2021-03-16
EP3322043A1 (en) 2018-05-16

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