EP3217484B1 - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- EP3217484B1 EP3217484B1 EP17160227.9A EP17160227A EP3217484B1 EP 3217484 B1 EP3217484 B1 EP 3217484B1 EP 17160227 A EP17160227 A EP 17160227A EP 3217484 B1 EP3217484 B1 EP 3217484B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- ring
- obstacle
- locking ring
- fitting
- 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
Links
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- 230000000295 complement effect Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 description 65
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- 238000005859 coupling reaction Methods 0.000 description 65
- 230000000694 effects Effects 0.000 description 7
- 208000031968 Cadaver Diseases 0.000 description 4
- 241000920340 Pion Species 0.000 description 4
- 238000007373 indentation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
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- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
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- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6276—Snap or like fastening comprising one or more balls engaging in a hole or a groove
-
- 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
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/625—Casing or ring with bayonet engagement
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6278—Snap or like fastening comprising a pin snapping into a recess
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- 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
- H01R13/64—Means for preventing incorrect coupling
- H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
Definitions
- the present invention relates to an electrical connection comprising a first coupling element and a second coupling element complementary to the first one, these two coupling elements being provided for fitting into one another.
- a connector can be used to electrically connect an electric vehicle to a power source, in order to recharge the batteries of this vehicle.
- a fitting that may be suitable for this application is known to EP-A-2,752,946 .
- their bodies are indexed about a longitudinal axis, in order to align each pin with a corresponding contact.
- pins are immobilized by engagement in corresponding locking grooves, recoil of a safety tab and by elastic return of the safety tab in blocking position of the pins in the grooves.
- the locking ring it is necessary for the locking ring to orient relative to the body around which it is mounted to align with that locking pin. This is possible thanks to a widely flared entrance chamfer of the locking groove, this chamfer covering the angular range of deflection of the locking ring.
- This connection gives overall satisfaction.
- the presence of the chamfer increases the axial length of the locking ring, therefore the axial length of the electrical connection thus formed.
- the invention relates to an electrical connection comprising a first coupling element and a second complementary coupling element of the first coupling element, these two coupling elements being provided for fitting into one another in accordance with a shaft of fitting.
- the first coupling member comprises a first body which is integral with at least one locking pin and which supports at least a first pin or a first contact.
- the first coupling element also comprises at least one first indexing member integral with the first body.
- the second coupling element comprises, in turn, a second body that supports at least a second contact or a second pin complementary to the first pin or the first contact, and a locking ring mounted around the second body being immobilized axially, along the axis of fitting, and movable in rotation, about this axis, relative to the second body.
- This locking ring is equipped with at least one locking groove, with a mouthpiece and a locking end adapted to receive the locking pin in a configuration where the locking pin is axially locked, along the axis of the locking pin. fitting, relative to the second body.
- the second coupling element also comprises at least one second indexing member configured to cooperate with the first indexing member, secured to the second body and configured to angularly position the first body relative to the second body about the axis of the second body. fitting in an indexed configuration which occurs during the fitting of the first and second coupling elements, before the engagement of the locking pin in the locking groove.
- the second coupling element comprises at least one obstacle movable relative to the locking ring between a first locking position of the rotation of the locking ring relative to the second body and a second release position in which obstacle does not oppose a rotation of the locking ring around the second body.
- the second coupling element comprises a movable locking ring, relative to the second body and along the axis of fitting, between a first advanced position, and at least a second retracted position.
- the second coupling element finally comprises an elastic return member of the locking ring towards its first advanced position.
- the obstacle, the locking ring and the second body are configured so that, when the first and second indexing members cooperate and when the obstacle is in its first locking position, this obstacle blocks the locking ring relative to the second body in a configuration where the mouth of the locking groove is aligned, in a direction parallel to the axis of fitting, with the locking pin.
- the locking ring is configured for, during the fitting of the first and second coupling elements and when the first and second indexing members cooperate, on the one hand, to be in its first advanced position, in which it maintains the obstacle in its first locking position, before engaging the locking pin in the locking groove, and secondly being pushed by a portion of the first coupling element, from its first advanced position to its second position recessed, in which it does not oppose the passage of the obstacle to its second position of liberation.
- the obstacle provided in the second coupling element makes it possible to guarantee adequate positioning of the or each locking groove with respect to the locking pinion (s) corresponding to the coupling. when the indexing members cooperate. More specifically, the invention ensures that the or each locking pin is aligned in a direction parallel to the axis of fitting, with the input of the corresponding locking groove, which makes it possible to dispense with the use of an input chamfer. The axial length of the locking ring can thus be reduced, as can the overall axial dimension of the coupling.
- pins and contacts are visible. They are normally connected to conductive cables that are not shown, for the sake of clarity.
- the front direction of a coupling element is defined as the direction oriented in the direction of the fitting or coupling, ie towards the complementary coupling element.
- the rear direction of a coupling element is defined as the direction opposite to the complementary coupling element.
- the female element 100 represented in the state uncoupled to the figure 1 belongs to an electrical connection R visible to figures 5 and following and which also comprises a male element 200 shown in the uncoupled state to Figures 2 to 4 .
- the female element 100 has a generally cylindrical structure centered on an axis X1.
- This female element 100 comprises an outer body 102 on which are fixed radially and oriented outwardly, three locking pins 104.
- Each locking pin 104 extends along an axis Y104 radial to the axis X1 and comprises a hub 1042 integral with the body 102, a roller 1044, a screw 1046 and a washer 1048, the screw and the washer being used to retain the roller 1044 on the hub 1042, with possibility of rotation around the axis Y104.
- the three locking pins 104 are arranged angularly equidistributed around the axis X1, that is to say with an angular interval of 120 ° around this axis.
- At least one locking pin 104 is necessary to lock the fitting R.
- the body 102 of the female element 100 further comprises an indexing tooth 106 disposed radially inside the body 102 and in front of the locking pins 104.
- the tooth indexing 106 is oriented towards the male element 200 during the fitting or coupling of the elements 100 and 200 of the connector R.
- the angular orientation of the indexing tooth 106 around the axis X1 is the same as that of one of the locking pins 104.
- an inner insulating body 110 Inside the outer body 102 is disposed an inner insulating body 110, of cylindrical shape and also centered on the axis X1.
- This body 110 defines two housings 111 in each of which is disposed a power pin 112.
- the body 110 may also contain a ground pin and pilot pins, as envisaged in FIG. EP-A-2,752,946 .
- the insulating body 110 bears against an internal shoulder 1022 of the outer body 102 and held in position inside this body by means of a circlip 114.
- the insulating body 110 is fixed in rotation about the axis X1 in the external body 102 by cooperation of an axial rib of the insulating body 110 with an axial groove of the outer body 102.
- the female coupling member 100 is mounted on a motor vehicle body member 500 by means of screws 502 which pass through an outer peripheral flange 1024 of the body 102, as well as the bodywork 500.
- the screws 502 are represented by their centerlines.
- the body 500 is omitted, for clarity of the drawing.
- the male element 200 which is shown in the decoupled state to Figures 2 to 4 , also belongs to the connection R. It is integrated in a charging station 600 and connected to a fixed station 602 of this station by a flexible cable 604. The parts 600, 602 and 604 are shown in phantom only at the figure 3 .
- the male element 200 also has a generally cylindrical structure centered on an axis X2.
- the body 202 of the male element has an indexing groove 206 which extends parallel to the axis X2 from the front end 2022 of the body 202 where is defined the mouth 2062 of the indexing groove 206 .
- an inner insulating body 210 is disposed within the body 202 of the male member 200 and includes two power contacts 212. which are complementary to the pins 112 and each disposed in a housing 211 of the insulating body 210.
- the insulating body 210 is held in abutment against an internal shoulder 2024 of the body 202 through a rear ring 203 which is screwed on the back of the body 202 , with the interposition of a sealing point 204 and sealingly receiving the flexible cable 604.
- the insulating body 210 is made fixed in rotation about the axis X2 in the body 202 by cooperation of an axial rib of the body insulator 210 with an axial groove of the body 202.
- a locking ring 216 is mounted, rotatable, around the body 202.
- the locking ring 216 is immobilized in translation, along the axis X2, relative to the body 202.
- the locking ring 216 is stuck axially between an outer shoulder 2026 of the body 202 and the rear ring 203.
- a flywheel 218 is integral in rotation and in translation with the ring 216. This flywheel comprises three branches 2182 which connect an inner and a rear ring 2184 to an outer ring and before 2186.
- the flywheel 218 is immobilized on the locking ring 216 by means of screws 220.
- the locking ring 216 has three locking grooves 222 regularly distributed at 120 ° around the axis X2 and which each extend between a mouth 2222 cut into the front edge 2162 of the locking ring 216 and a rear end 2224 which forms a locking zone of a pin 104.
- the front edge 2162 of the locking ring 216 is disposed at the rear of the front end 2022 of the body 202.
- each groove 222 is defined between a leading edge 2226 and a trailing edge 2228, these edges being inclined with respect to the axis X2 and with respect to a plane perpendicular to the axis X2.
- the front 2226 and rear 2228 edges are substantially parallel.
- axis X'2 parallel to the axis X2 and passing through the center of the mouth 2222.
- a straight line D222 parallel to the front edge 2226 or the rear edge 2228 of the groove 222 in a plane ortho-radial to the axis X2 passing through the axis X'2.
- the axis X'2 and the line D222 define between them an angle ⁇ 222, taken on the front of the connecting element 200, which is non-zero and strictly less than 90 °.
- the angle ⁇ 222 is between 30 ° and 60 °, preferably of the order 45 °.
- the front edge 2226 of the groove 222 is continuous, from the rear end 2224 to the level of the mouth 2222.
- the rear edge 2228 is, meanwhile, interrupted to let two legs, namely a release tab 2407 and a safety tab 2408 whose functions are explained in what follows.
- the insulating body 210 defines three housings 211 for power contacts 212 or a ground contact, and two housings 213 for pilot contacts not visible in the figures.
- the male coupling element 200 comprises six balls 230, each housed in a through radial orifice 2164 of the locking ring 216.
- the diameter of each ball 230 is greater than the radial thickness of the locking ring 216, so that when they are engaged in the orifices 2164, the balls 230 protrude radially from the ring 216, either inwards in the direction of the axis X 2 or outwardly opposite this axis.
- the number of balls 230 may be different from six, while being greater than or equal to one. When several balls are used, they are preferably evenly distributed around the axis X2 thanks to a proper positioning of the orifices 2164.
- the body 202 is provided with six identical grooves 2021 which each extend circumferentially on the outer surface of the body 202 and each end with an indentation or cavity 2023 in the form of a concave spherical cap.
- Each recess 2023 is hollowed out more deeply, in a radial direction, into the body 202 than the grooves 2021.
- Each recess 2023 communicates with a groove 2021.
- the surface of each recess 2023 is complementary to the internal radial part of an obstacle 230.
- each ball 230 is engaged in a recess 2023. In this configuration, because of the engagement and maintenance of the balls 230 in the recesses 2023, the balls 230 solidarize in rotation the locking ring 216 and the body 202, around the X2 axis.
- each groove 2021 is bordered by a boss 2025 which separates it from the imprint 2023 constituting the end of the adjacent groove 2021.
- the male connector member 200 also includes a lock ring 240 which includes a front portion 2402 and a rear portion 2404. These portions 2402 and 2404 are assembled by means of screws 2406 which are five in number as visible in FIG. figure 4 and only one of which is visible figure 7 given the cutting plans used.
- the locking ring 240 radially surrounds the locking ring 216, as well as the six balls 230.
- the locking ring 240 is axially movable, along the axis X2, with respect to the locking ring 216 and to the body 202. More specifically, a support ring 250 is mounted around the locking ring 216, this bearing ring being equipped with an inner chamfer which rests against an O-ring 252 partially received in an outer peripheral groove of the locking ring.
- a coil spring 260 is interposed axially between the bearing ring 250 and a shoulder 2403 of the front portion 2402. This spring 260 is an elastic return element of the locking ring 240 towards the front of the male element 200.
- the support ring 250 is kept locked in translation parallel to the X2 axis, in a forward-to-back direction.
- the rear portion 2404 of the locking ring 240 defines a first cylindrical inner radial surface S1 with a circular base and centered on the axis X2 and whose radius R1 is substantially equal to the outer radius of the locking ring 216 measured at the level of an outer radial surface 2166.
- the balls 230 thus each constitute an obstacle which makes it possible to lock the locking ring 216 in rotation relative to the body 202, when this is necessary, as explained hereinafter.
- the grooves 2021 and the indentations 2023 together constitute housings in which the internal radial portions of the balls 230 are engaged, these radial and internal portions having, relative to the body 202 and within these housings, a radial movement at the level of the indentations 2023. and a circumferential movement at the grooves 2021.
- the locking ring 240 also includes three release lugs 2407 which each extend through a longitudinal housing 2167 formed in the sealing ring. locking 216 and which each open into a locking groove 222.
- the locking ring 240 also comprises three safety tabs 2408 each engaged in a longitudinal housing 2168 of the locking ring 216 and which also each open into a locking groove 222. As mentioned above, the release 2407 and security 2408 tabs interrupt the trailing edge 2228 of the groove 222 into which they are engaged.
- the locking ring 240 is integral in rotation, around of the X2 axis, with the locking ring 216.
- An O-ring seal 270 is mounted in an outer peripheral groove 2028 of the body 202, which groove is disposed along the axis X2 beyond the bottom 2064 of the indexing groove 206 relative to the front end 2022 of the body 202.
- the male connector member 200 also includes a protection ring 280 which is disposed around the front portion of the body 202 and which protects the respective mouths 2062 and 2222 of the indexing groove 206 and the locking grooves 222 against soiling. .
- this protection ring 280 is not represented on the figures 3 and 9 .
- the protection ring 280 is secured to the locking ring 216 by means of screws 282, only one of which is visible in this figure.
- the locking ring 240 is provided with an external peripheral collar 2405
- the operation of the connection R is as follows: In uncoupled configuration, the female 100 and male 200 elements of the connector are in the configuration of the Figures 1 to 4 . In this configuration, the spring 260 pushes the locking ring 240 forward of the connecting member 200 to the point that the tabs 2407 and 2408 protrude into the locking grooves 222. In this configuration, the surface S1 of the locking ring 240 is aligned axially with the balls 240 which are held radially by this surface S1 in a configuration engaged within the indentations 2023. An inner front edge 2401 of the locking ring 240 abuts on the front against a outer shoulder 2161 of the locking ring 216.
- the position of the impressions 2023 on the outer peripheral surface of the body 202, on the one hand, and the position of the orifices 2164 in the locking ring 216, on the other hand, are chosen. such that, in this configuration, the mouth 2222 of one of the locking grooves 222 is angularly aligned, about the axis X2, with the mouth 2062 of the indexing groove 206.
- indexing teeth formed by the indexing tooth 106 and the indexing groove 206 are actuated by aligning these members with each other in a direction parallel to the XR axis and engaging the indexing tooth 106 in the indexing groove 206.
- the cooperation of the indexing members 106, 206 aligns, along the axis XR, each pin 112 supported by the first body 104 with the corresponding contact 212 supported by the second body 204.
- the bodies 102 and 202 are then in indexed configuration.
- this pin 104 is automatically aligned with this mouth 2062 along the axis X'2, without the need to use a centering chamfer.
- the axis X'2 is intersecting with the axis Y104 of the pin 104.
- the indexing tooth 106 engages in the longitudinal indexing groove 206 and automatically orients the body 102 of the female element 100 relative to the body 202 of the male element 200 around the central axis XR, in such a way that the pin 104 mentioned above is automatically aligned with the mouth 2222 of the groove 222 mentioned above.
- the effective fitting of the elements 100 and 200 begins during a first fitting step shown in FIGS. figures 7 and 8 .
- the inner radial surface of the body 102 then bears on two zones Z1 and Z2 of the outer peripheral surface of the body 202 which are axially offset along the XR axis of each other, being arranged on the outside and another of an external peripheral groove 2027 of the body 202.
- This support of the rollers 1044 on the release lugs 2407 and the continuation of the fitting of the elements 100 and 200 have the effect of causing the ring 240 to move back against the elastic force exerted by the spring 260, which shifts axially the surface S1 relative to the balls 230, which are then found radially facing the surface S2.
- the balls 230 can then move relative to the body 202 from their locking position in their release position and be partially engaged in the volume V1, which is constituted by a radial interstice defined between the surface S2 and the external radial surface 2166 of the ring 216. In doing so, the balls 230 can be radially extracted from the impressions 2023 to roll each in a groove 2021.
- the balls 230 have reached a release position in which they do not oppose a rotation of the locking ring 216 around the body 202 for the advance of the pin 104 in the locking groove 222 towards the end of locking 2224 and locking the locking pin 104 in the locking groove 222, as they can roll into the grooves 2021.
- the transition from the uncoupled configuration to the configuration of the figures 7 and 8 corresponds to a first retreat of the locking ring 240 to an intermediate position where the balls 230 are engaged in the volume V1 close to the surface S1.
- the locking ring 216 has not begun to rotate relative to the body 202.
- the indexing tooth 106 continues its progression in the indexing groove 206.
- the front surface 2407a of the release lug 2407 that is to say the surface which bears the roller 1044 of a pin 104 is an axial surface perpendicular to the axis XR, and the axis X ' 2 is intersecting with the surface 2407a so that, when mating, in the configuration of the figures 7 and 8 , the support between a pin 104 and the release lug 2407 is only axial.
- the surface 2407a is aligned along the axis X'2 with the mouth 2222, so that the pin 104 introduced into axial movement in the mouth 2222 comes into contact with the surface 2407a.
- each safety tab 2408 is tapered and has a truncated surface 2408a which facilitates a free support of the roller 1044 on the safety tab 2408.
- each pin 104 pushes the adjacent safety tab 2408 towards the rear of the male connector element 200, which induces a second retreat of the locking ring 240 and releases the passage for this pin, which can reach its locked position at the rear end 2224 of the groove 222, which end is closed.
- the body 102 covers the seal 270, which ensures the sealing of the connection inside the bodies 102 and 202 when the pins 112 arrive in electrical contact with the contacts 212.
- the outer radial portions of the balls 230 are moved within the volume V1 to reach the front end of the rear portion 2404.
- the indexing tooth 106 continues its progression in the indexing groove 206.
- each pin 104 has passed the safety tab 2408 which extends into the relevant locking groove 222, so that the spring 260 can return the lock ring 240 forward in a configuration where it surrounds and covers partially the locking pins 104 and the locking grooves 222, as well as the gap between the locking ring and the locking ring, between the shoulder 2161 and the inner front edge 2401, which limits the introduction of soiling into these grooves and keeps a gap between the locking ring and the locking ring as clean as possible.
- each pin 104 When each pin 104 reaches the rear end 2024 of the groove 222 in which it is engaged, it is locked in this end by the safety tab 2408 which has returned to this groove because the locking ring 240 is elastically pushed towards the before by the spring 260 in axial support against the balls 230.
- the safety tab 2408 axially locks the pin 104 adjacent to the male body 202.
- the safety tab 2408 also blocks the rotation between the locking ring 216 and the 104.
- the indexing tooth 106 is always in cooperation with the indexing groove 206.
- the pilot pins come into electrical connection with their respective contacts after the electrical connection of the power circuits, by engagement of the power pins in their power contact, has been achieved. This makes it possible to ensure that, when the relays are activated on closing by the pilot circuit, the current can actually transit through the coupling R to recharge the vehicle on the body 500 of which the female coupling element 100 is mounted. Electrical connections occur between the configuration of the figures 7 and 8 and the configuration of the figure 11 . In the coupled configuration or fitted, each of the pins of the element 100 is in electrical connection with its corresponding contact on the element 200.
- the protection ring 280 is disposed around the front end of the locking ring 216. It ensures, together with the flywheel 218 which is substantially larger in diameter than that of the body 202, that the sensitive elements of the male connector element 200, such as its locking grooves 222 and its locking ring 240, do not come into direct contact with the ground when the male connecting element 200 is at earth, which prevents these sensitive elements from being damaged. Indeed, the protection ring 280 and the flywheel 218 constitute protective members radially surrounding the sensitive elements of the male element of the coupling.
- the operator pulls on the locking ring by exerting on the flange 2405 an axial force directed towards the rear of the male coupling element 200, as represented by the F2 arrows at figures 12 and 13 .
- This allows the safety tab 2408 to be erased within each locking groove 222 and to release the passage for the locking pins 104 towards the respective mouths 2222 of these grooves.
- the operator then rotates the locking ring 216 through the flywheel 218, in the opposite direction to that mentioned above.
- the balls 230 can progress in the grooves 2021 and do not oppose the rotation of the locking ring 216 around the body 202 in the direction of uncoupling, that is to say in a direction of rotation contrary to the arrow F1, which makes it possible to advance the locking pins 104 to the mouths 2222.
- the pilot pins are disconnected from the corresponding contacts, which cuts power to the power circuits. Continuing this movement, the power pins and the ground pin are disconnected from their contacts.
- each ball 230 is opposite an impression 2023 and locking pin 104 is in a position aligned with respect to the mouth 2222 of a groove 222, one of the mouths 2222 being further aligned with the mouth 2602, because one of the pins 104 is aligned with the tooth 106.
- the locking ring 240 which is released by the operator is pushed by the spring 260 to the point that it comes into abutment against the locking ring 216, which has the effect of axially aligning the surface S1 with the balls 230, which are then engaged in the impressions 2023, and then maintained in place in these footprints.
- the rotation of the locking ring with respect to the body 202 is again blocked.
- the locking ring is thus immobilized in rotation around the body 202, in a configuration where the mouth 2222 of one of the grooves 222 is aligned axially with the mouth 2602 of the indexing groove 206, which ensures effective alignment of the three locking pins 104 with the mouths 2222 during an operation subsequent fitting of the elements 100 and 200 of the connector R, after placing the indexing members 106 and 206 in cooperation.
- each release lug 2407 On uncoupling, when advancing the locking ring 240, each release lug 2407 also projects into the corresponding locking groove 222, which has the effect of pushing the locking pin 104 towards the mouth 2222, thus facilitating the uncoupling of the elements 100 and 200.
- the female body 102 is removed from the male element 200 by the operator and each pin 104 leaves its locking groove 222 through its mouth 2222.
- the uncoupling is then effective and the male coupling member 200 is ready for another connection, with its locking ring 216 angularly locked in a configuration compatible with the introduction of a new female connector member 100.
- a safety disconnection can be provided by attaching the locking ring 240 to a fixed point of the charging station.
- a movement of the locking ring with respect to the charging station is limited to the movement necessary for the coupling.
- the withdrawal movement of the female coupling element 100 carried by the bodywork 500 of the vehicle which deviates along the axis of fitting XR, while the coupling R is still coupled, drives the male body 202 and the locking ring 216 in the same movement as the vehicle, while the locking ring 240 is retained on the charging station 600.
- the obstacles formed by the balls 230 in their first locking position make it possible to maintain the locking ring 216 in an angular position relative to the body 202 which is compatible with the coupling or fitting of the elements 100 and 200, especially with the automatic introduction locking pins 104 in the locking grooves 222, since the male and female bodies 102 and 202 are brought together and indexed angularly by the cooperation of the tooth 106 and the groove 206.
- the longitudinal dimension of the fitting R is reduced compared to the known one of EP-A-2,752,946 since the angular position of the locking ring is provided by the ball or balls 230, while it is not necessary to provide a wide chamfer input into the locking grooves 222.
- the movement of the locking ring 240 is axial, therefore collinear with the coupling force which is transmitted to an axial surface of the locking ring, namely the end face 2407a of the release lugs 2407, by the outer peripheral surface of the rollers 1044. This configuration limits the coupling efforts.
- the locking ring 240 has a substantially axial movement and as it is pushed directly by an axial surface connected to the body of the female coupling member 100, the retraction of the release tabs 2407 is guaranteed for a given configuration.
- lock pins 104 relative to the grooves 222.
- the position of these pins can be accurately guaranteed with respect to grooves 222 during the release of the rotation of the locking ring 240.
- the intermediate retracted position of the locking ring 204 is reached when the pins 104 abut against the rear edges 2228 of the locking grooves 222.
- the rotation of the locking ring 216 for the locking of the pins 104 in the grooves 222 is released when the pins 104 are, certainly, fully engaged in the locking grooves 222, that is, when the entire periphery of each of the rollers 1044 is in a locking groove 222.
- the rotation of the ring locking 216 necessarily drives the pins 104 to their locked position in the closed end 2224 of each locking groove 222. The release of the rotation of the locking ring 216 therefore occurs when this rotation effectively allows locking of the pins 104.
- the position of the pins 104 is locked against any rotation in the unlocking direction, thanks to the safety tab 2408 immobile longitudinally.
- the use of such a safety tab 2408 makes it possible to limit the tangential forces on the balls 230 in coupled configuration.
- the multiplication of the balls 230 makes it possible to reduce the point contact force between the locking ring 240 and each of these balls, when the coupling R is in coupled configuration.
- release tabs 2407 and safety tabs 2408 angularly offset from each other makes it possible to reduce the coupling force to be provided on the locking ring 216.
- the locking ring 240 partially covers the locking pins 104 in the coupled configuration of the connector R. This ring thus protects the residual axial space between the locking ring 216 and the locking ring 240, vis-à-vis dirt and / or pollution.
- the disassociation of the locking ring 240 into two parts 2402 and 2404 assembled makes it possible to select different materials for these two parts.
- a harder material such as hardened steel
- a less resistant material such as aluminum
- the unlocking of the rotation of the locking ring is visible by the operator since the locking ring 240 is located on the outside of the body 202 and adopts, in this case, a retracted position relative to the body 202.
- the retracted position of the locking ring 204 in which it releases the obstacles 230, which can then move in their second release position, is reached when only a part of each of the pins 104 is engaged in the grooves of lock 222.
- the number of beads may be different from six.
- the number of pins and locking grooves 104 and 222 may be different from three. When several pins and locking grooves are used, they are preferably equidistributed around the axis XR.
- the locking ring 240 may be pushed back by a portion of the female body 102 other than the roller 1044 of a locking pin 104, in practice an axial surface of the female body 102 other than that of the pins of This variant imposes a longer locking ring to interact directly with the body 102 of the female coupling element 100.
- Two fingerprints 2023 in sphere portion may be provided, namely one at each end of the angular range of movement of the locking ring 216 relative to the pin 104.
- the balls 230 cooperate with the first spherical imprint to block the rotation of the locking ring relative to the second body in uncoupled configuration and, in their second locking position, with the second spherical cavity to block the rotation of the locking ring relative to the second body in coupled configuration.
- the safety tabs 2408 can then be omitted since the balls are held in the second spherical cavities in a configuration coupled by the locking ring in the advanced position, which ensures the locking in rotation of the locking pins 104 within the locking grooves 222 .
- each safety tab 2408 may be constituted by a release tab.
- each safety tab is retracted by the corresponding pin 104 when it engages in the mouth 2222 of a groove 222 and this tab returns to pass in the groove 222 when the pin reaches its locked position, after relative rotation of the pin and the locking groove.
- the locking ring 240 is movable relative to the body 202 between an advanced position and a retracted position in which the rotation of the locking ring 216 is possible, the locking ring 240 being in the advanced position in the fitting configuration of the coupling.
- the release lug 2407 is integral with the locking ring 240. This is not mandatory and the release lug (s) may be constituted by one or more rods fixed on the locking ring.
- the connector may have an automatic operation at the connection.
- the pins 104 abut against the inclined rear edges 2228 of the locking grooves 222 and any action of approach between the body 202 and the body 102 creates a tangential component that drives the locking ring in rotation. In this case, it is not necessary for the operator to exert a torque on the steering wheel 218.
- the indexing tooth 106 may be provided on the body 202, while the indexing groove is provided on the body 102. More than two indexing members 106 and 206 may be provided on the bodies 102 and 202. In variant not shown, the indexing can be provided by the cooperation of a spindle-type pin 112 with a complementary housing formed on the insulator of the complementary coupling element.
- the distribution of the indexing members relative to the pins and locking grooves may differ from the example described. In particular, the pins and grooves may not be equi-distributed around the axis XR.
- the indexing member of a coupling element may not not be angularly aligned with a groove or locking pin.
- the angular position of the locking ring, and therefore of each of the mouths of the locking grooves, relative to the body of the second coupling element, when the rotation of the locking ring is blocked by the obstacles, is chosen, with respect to the indexing member of the second coupling element, such that it corresponds to the angular position of the locking pins relative to the indexing member of the first coupling element.
- the pins 104 may be monoblocks.
- the distribution of the pins and electrical contacts 112, 212 and the like may be different from that shown. Some contacts can be mounted in the body 102, while the corresponding pins are in the body 202.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
La présente invention concerne un raccord électrique comprenant un premier élément de raccord et un deuxième élément de raccord complémentaire du premier, ces deux éléments de raccord étant prévus pour s'emmancher l'un dans l'autre. Par exemple, un tel raccord peut être utilisé pour raccorder électriquement un véhicule électrique à une source de courant, afin de recharger les batteries de ce véhicule.The present invention relates to an electrical connection comprising a first coupling element and a second coupling element complementary to the first one, these two coupling elements being provided for fitting into one another. For example, such a connector can be used to electrically connect an electric vehicle to a power source, in order to recharge the batteries of this vehicle.
Un raccord pouvant convenir à cette application est connu de
Des problèmes comparables se posent avec les matériels connus de
C'est à ces problématiques qu'entend plus particulièrement répondre l'invention en proposant un nouveau raccord électrique dans lequel un pion de verrouillage peut être efficacement mis en place dans une rainure de verrouillage, sans avoir recours à un chanfrein d'entrée.These problems are more particularly addressed by the invention by proposing a new electrical connection in which a locking pin can be effectively implemented in a locking groove, without resorting to an input chamfer.
A cet effet, l'invention concerne un raccord électrique comprenant un premier élément de raccord et un deuxième élément de raccord complémentaire du premier élément de raccord, ces deux éléments de raccord étant prévus pour s'emmancher l'un dans l'autre selon un axe d'emmanchement. Le premier élément de raccord comprend un premier corps qui est solidaire d'au moins un pion de verrouillage et qui supporte au moins une première broche ou un premier contact. Le premier élément de raccord comprend également au moins un premier organe d'indexage solidaire du premier corps. Le deuxième élément de raccord comprend, quant à lui, un deuxième corps qui supporte au moins un deuxième contact ou une deuxième broche complémentaire de la première broche ou du premier contact, ainsi qu'une bague de verrouillage montée autour du deuxième corps en étant immobilisé axialement, le long de l'axe d'emmanchement, et mobile en rotation, autour de cet axe, par rapport au deuxième corps. Cette bague de verrouillage est équipée d'au moins une rainure de verrouillage, avec une embouchure et une extrémité de verrouillage prévue pour recevoir le pion de verrouillage dans une configuration où le pion de verrouillage est verrouillé axialement, le long de l'axe d'emmanchement, par rapport au deuxième corps. Le deuxième élément de raccord comprend également au moins un deuxième organe d'indexage configuré pour coopérer avec le premier organe d'indexage, solidaire du deuxième corps et configuré pour positionner angulairement le premier corps par rapport au deuxième corps autour de l'axe d'emmanchement dans une configuration indexée qui intervient, pendant l'emmanchement des premier et deuxième éléments de raccord, avant l'engagement du pion de verrouillage dans la rainure de verrouillage. Conformément à l'invention, le deuxième élément de raccord comprend au moins un obstacle mobile par rapport à la bague de verrouillage entre une première position de blocage de la rotation de la bague de verrouillage par rapport au deuxième corps et une deuxième position de libération dans laquelle l'obstacle ne s'oppose pas à une rotation de la bague de verrouillage autour du deuxième corps. En outre, le deuxième élément de raccord comprend une bague de blocage mobile, par rapport au deuxième corps et selon l'axe d'emmanchement, entre une première position avancée, et au moins une deuxième position reculée. Le deuxième élément de raccord comprend enfin un organe de rappel élastique de la bague de blocage vers sa première position avancée. L'obstacle, la bague de verrouillage et le deuxième corps sont configurés pour que, lorsque les premier et deuxième organes d'indexage coopèrent et lorsque l'obstacle est dans sa première position de blocage, cet obstacle bloque la bague de verrouillage par rapport au deuxième corps dans une configuration où l'embouchure de la rainure de verrouillage est alignée, selon une direction parallèle à l'axe d'emmanchement, avec le pion de verrouillage. En outre, la bague de blocage est configurée pour, pendant l'emmanchement des premier et deuxième éléments de raccord et lorsque les premier et deuxième organes d'indexage coopèrent, d'une part, se trouver dans sa première position avancée, dans laquelle elle maintient l'obstacle dans sa première position de blocage, avant l'engagement du pion de verrouillage dans la rainure de verrouillage, et d'autre part être poussée par une portion du premier élément de raccord, de sa première position avancée dans sa deuxième position reculée, dans laquelle elle ne s'oppose pas au passage de l'obstacle vers sa deuxième position de libération.To this end, the invention relates to an electrical connection comprising a first coupling element and a second complementary coupling element of the first coupling element, these two coupling elements being provided for fitting into one another in accordance with a shaft of fitting. The first coupling member comprises a first body which is integral with at least one locking pin and which supports at least a first pin or a first contact. The first coupling element also comprises at least one first indexing member integral with the first body. The second coupling element comprises, in turn, a second body that supports at least a second contact or a second pin complementary to the first pin or the first contact, and a locking ring mounted around the second body being immobilized axially, along the axis of fitting, and movable in rotation, about this axis, relative to the second body. This locking ring is equipped with at least one locking groove, with a mouthpiece and a locking end adapted to receive the locking pin in a configuration where the locking pin is axially locked, along the axis of the locking pin. fitting, relative to the second body. The second coupling element also comprises at least one second indexing member configured to cooperate with the first indexing member, secured to the second body and configured to angularly position the first body relative to the second body about the axis of the second body. fitting in an indexed configuration which occurs during the fitting of the first and second coupling elements, before the engagement of the locking pin in the locking groove. According to the invention, the second coupling element comprises at least one obstacle movable relative to the locking ring between a first locking position of the rotation of the locking ring relative to the second body and a second release position in which obstacle does not oppose a rotation of the locking ring around the second body. In addition, the second coupling element comprises a movable locking ring, relative to the second body and along the axis of fitting, between a first advanced position, and at least a second retracted position. The second coupling element finally comprises an elastic return member of the locking ring towards its first advanced position. The obstacle, the locking ring and the second body are configured so that, when the first and second indexing members cooperate and when the obstacle is in its first locking position, this obstacle blocks the locking ring relative to the second body in a configuration where the mouth of the locking groove is aligned, in a direction parallel to the axis of fitting, with the locking pin. In addition, the locking ring is configured for, during the fitting of the first and second coupling elements and when the first and second indexing members cooperate, on the one hand, to be in its first advanced position, in which it maintains the obstacle in its first locking position, before engaging the locking pin in the locking groove, and secondly being pushed by a portion of the first coupling element, from its first advanced position to its second position recessed, in which it does not oppose the passage of the obstacle to its second position of liberation.
Grâce à l'invention, l'obstacle prévu dans le deuxième élément de raccord permet de garantir un positionnement adéquat de la ou de chaque rainure de verrouillage par rapport au(x) pion(s) de verrouillage correspondant(s) à l'accouplement lorsque les organes d'indexage coopèrent. Plus précisément, l'invention permet de garantir que le ou chaque pion de verrouillage est aligné, selon une direction parallèle à l'axe d'emmanchement, avec l'entrée de la rainure de verrouillage correspondante, ce qui permet de se dispenser de l'utilisation d'un chanfrein d'entrée. La longueur axiale de la bague de verrouillage peut ainsi être réduite, tout comme l'encombrement axial global du raccord.Thanks to the invention, the obstacle provided in the second coupling element makes it possible to guarantee adequate positioning of the or each locking groove with respect to the locking pinion (s) corresponding to the coupling. when the indexing members cooperate. More specifically, the invention ensures that the or each locking pin is aligned in a direction parallel to the axis of fitting, with the input of the corresponding locking groove, which makes it possible to dispense with the use of an input chamfer. The axial length of the locking ring can thus be reduced, as can the overall axial dimension of the coupling.
Selon des aspects avantageux mais non obligatoires de l'invention, un tel raccord peut incorporer une ou plusieurs des caractéristiques suivantes, prises selon toute combinaison techniquement admissible :
- La bague de blocage est solidaire en rotation de la bague de verrouillage.
- Le deuxième corps comprend au moins une empreinte concave et l'obstacle est engagé dans l'empreinte concave lorsqu'il est dans sa première position de blocage.
- Le corps comprend également une gorge périphérique circonférentielle qui communique avec l'empreinte concave et qui est apte à recevoir l'obstacle lorsqu'il est dans sa deuxième position de libération.
- L'obstacle est mobile dans un orifice radial de la bague de verrouillage et la bague de blocage est pourvue d'une première surface radiale interne, qui, en configuration désaccouplée du raccord électrique, entoure l'obstacle et maintient l'obstacle dans sa première position de blocage.
- La bague de blocage est pourvue d'une deuxième surface radiale interne, qui est cylindrique à base circulaire et dont le rayon est strictement supérieur au rayon de la première surface radiale interne, qui est également cylindrique à base circulaire, alors que la deuxième surface radiale interne délimite un logement de réception partielle de l'obstacle lorsque la bague de blocage est dans sa deuxième position reculée.
- La bague de blocage est multipartite et comprend une partie avant destinée à être en contact avec la portion du premier élément de raccord pendant l'emmanchement des premier et deuxième éléments de raccord et une partie arrière qui est pourvue des première et deuxième surfaces radiales internes.
- La bague de blocage comprend une patte de libération qui est alignée avec l'embouchure, selon une direction parallèle à l'axe d'emmanchement, qui est mobile
- The locking ring is integral in rotation with the locking ring.
- The second body comprises at least one concave impression and the obstacle is engaged in the concave impression when it is in its first locking position.
- The body also includes a peripheral circumferential groove which communicates with the concave footprint and which is adapted to receive the obstacle when in its second release position.
- The obstacle is movable in a radial orifice of the locking ring and the locking ring is provided with a first internal radial surface, which, in uncoupled configuration of the electrical connection, surrounds the obstacle and maintains the obstacle in its first blocking position.
- The locking ring is provided with a second internal radial surface, which is cylindrical with a circular base and whose radius is strictly greater than the radius of the first internal radial surface, which is also cylindrical with a circular base, while the second radial surface internal defines a partial reception housing of the obstacle when the locking ring is in its second retracted position.
- The locking ring is multipartite and includes a front portion for engaging the portion of the first coupling member during fitting of the first and second coupling members and a rear portion which is provided with the first and second inner radial surfaces.
- The locking ring comprises a release lug which is aligned with the mouth, in a direction parallel to the axis of fitting, which is movable
axialement dans la rainure de verrouillage et qui est configurée pour être poussée par la portion du premier élément de raccord qui est alors formée par le pion de verrouillage pendant l'emmanchement des premier et deuxième éléments de raccord, en déplaçant la bague de blocage de sa première position avancée dans sa deuxième position reculée.
- Pendant l'emmanchement des premier et deuxième éléments de raccord, la bague de blocage atteint sa deuxième position reculée lorsque le pion de verrouillage est engagé en entier dans la rainure de verrouillage.
- Le raccord comprend au moins trois obstacles, de préférence six obstacles, répartis autour de l'axe d'emmanchement et chaque obstacle est formé par une bille.
- Le deuxième élément de raccord comprend une patte de sécurité fixe en rotation, autour de l'axe d'emmanchement, et mobile axialement, le long de cet axe, par rapport à la bague de verrouillage entre une première position d'arrêt, dans laquelle elle bloque le passage du pion de verrouillage entre l'extrémité de verrouillage de la rainure de verrouillage et l'embouchure de la rainure de verrouillage, et une deuxième position dégagée, dans laquelle elle autorise le passage du pion de verrouillage. Il est également prévu un organe de rappel élastique de la patte de sécurité vers sa première position d'arrêt.
- La patte de sécurité est différente de la patte de libération.
- La patte de sécurité est solidaire de la bague de blocage.
- La rainure de verrouillage comprend un bord avant et/ou un bord arrière incliné par rapport à l'axe d'emmanchement et par rapport à un plan perpendiculaire à l'axe d'emmanchement et qui s'étend de l'embouchure jusqu'à l'extrémité de verrouillage.
- En configuration emmanchée du raccord, la bague de blocage recouvre au moins partiellement la rainure de verrouillage et le pion de verrouillage.
- During fitting of the first and second coupling members, the locking ring reaches its second retracted position when the locking pin is fully engaged in the locking groove.
- The connection comprises at least three obstacles, preferably six obstacles, distributed around the axis of fitting and each obstacle is formed by a ball.
- The second coupling element comprises a security tab fixed in rotation, about the axis of fitting, and axially movable, along this axis, with respect to the locking ring between a first stop position, in which it blocks the passage of the locking pin between the locking end of the locking groove and the mouth of the locking groove, and a second disengaged position, in which it allows the passage of the locking pin. There is also provided an elastic return member of the safety tab to its first stop position.
- The safety tab is different from the release tab.
- The safety tab is secured to the locking ring.
- The locking groove comprises a front edge and / or a rear edge inclined with respect to the axis of fitting and relative to a plane perpendicular to the axis of fitting and which extends from the mouth to the locking end.
- In the fitted configuration of the coupling, the locking ring at least partially covers the locking groove and the locking pin.
L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre, d'un mode de réalisation d'un raccord électrique et d'une installation de recharge conformes à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :
- la
figure 1 est une coupe axiale d'un premier élément d'un raccord électrique conforme à l'invention, utilisé au sein d'une installation de recharge également conforme à l'invention ; - la
figure 2 est une coupe axiale analogue à lafigure 1 pour un deuxième élément du raccord conforme à l'invention ; - la
figure 3 est une vue en perspective du deuxième élément de raccord représenté en coupe à lafigure 2 ; - la
figure 4 est une coupe transversale selon la ligne IV-IV à lafigure 2 ; - la
figure 5 est une coupe axiale, à plus petite échelle, des éléments mâle et femelle du raccord lors d'une étape préalable d'emmanchement de ceux-ci ; - la
figure 6 est une vue partielle en perspective des éléments mâle et femelle du raccord dans la configuration de lafigure 5 ; - la
figure 7 est une coupe axiale analogue à lafigure 5 , lorsque les éléments mâle et femme du raccord sont dans une première étape d'emmanchement ; - la
figure 8 est une demi-coupe à plus grande échelle selon la ligne VIII-VIII à lafigure 5 ; - la
figure 9 est une vue extérieure des éléments mâle et femelle de raccord lors d'une deuxième étape d'emmanchement ; - la
figure 10 est une coupe transversale à plus grande échelle selon la ligne X-X à lafigure 7 ; - la
figure 11 est une coupe analogue à lafigure 5 lors d'une troisième étape d'emmanchement ; - la
figure 12 est une vue extérieure du raccord en configuration emmanchée et - la
figure 13 est une coupe axiale analogue auxfigures 5 ,7 et9 en configuration emmanchée.
- the
figure 1 is an axial section of a first element of an electrical connection according to the invention, used in a charging installation also according to the invention; - the
figure 2 is an axial section similar to thefigure 1 for a second element of the coupling according to the invention; - the
figure 3 is a perspective view of the second coupling element shown in section atfigure 2 ; - the
figure 4 is a cross-section along line IV-IV atfigure 2 ; - the
figure 5 is an axial section, on a smaller scale, the male and female elements of the connector during a prior step of fitting thereof; - the
figure 6 is a partial perspective view of the male and female elements of the connector in the configuration of thefigure 5 ; - the
figure 7 is an axial section similar to thefigure 5 when the male and female elements of the coupling are in a first step of fitting; - the
figure 8 is a half-section on a larger scale along line VIII-VIII tofigure 5 ; - the
figure 9 is an external view of the male and female coupling elements during a second step of fitting; - the
figure 10 is a cross-section on a larger scale along line XX to thefigure 7 ; - the
figure 11 is a cut similar to thefigure 5 during a third step of fitting; - the
figure 12 is an external view of the fitting in fitted configuration and - the
figure 13 is an axial section similar tofigures 5 ,7 and9 in fitted configuration.
Sur les figures mentionnées ci-dessus, des broches et des contacts sont visibles. Ils sont normalement reliés à des câbles conducteurs qui ne sont pas représentés, pour la clarté du dessin.In the figures mentioned above, pins and contacts are visible. They are normally connected to conductive cables that are not shown, for the sake of clarity.
Dans la suite de cette description, on définit la direction avant d'un élément de raccord comme la direction orientée dans le sens de l'emmanchement ou accouplement, c'est à dire vers l'élément de raccord complémentaire. A l'inverse, on définit la direction arrière d'un élément de raccord comme la direction opposée à l'élément de raccord complémentaire.In the remainder of this description, the front direction of a coupling element is defined as the direction oriented in the direction of the fitting or coupling, ie towards the complementary coupling element. Conversely, the rear direction of a coupling element is defined as the direction opposite to the complementary coupling element.
L'élément femelle 100 représenté à l'état désaccouplé à la
L'élément femelle 100 présente une structure globalement cylindrique centrée sur un axe X1. Cet élément femelle 100 comporte un corps externe 102 sur lequel sont fixement positionnés de manière radiale et orientée vers l'extérieur, trois pions de verrouillage 104. Chaque pion de verrouillage 104 s'étend selon un axe Y104 radial à l'axe X1 et comprend un moyeu 1042 monobloc avec le corps 102, un galet 1044, une vis 1046 et une rondelle 1048, la vis et la rondelle étant utilisée pour retenir le galet 1044 sur le moyeu 1042, avec possibilité de rotation autour de l'axe Y104. Les trois pions de verrouillage 104 sont disposés angulairement de manière équirépartie autour de l'axe X1, c'est-à-dire avec un intervalle angulaire de 120° autour de cet axe.The
De façon générale, au moins un pion de verrouillage 104 est nécessaire pour verrouiller le raccord R.In general, at least one
Le corps 102 de l'élément femelle 100 comporte, en outre, une dent d'indexage 106 disposée radialement à l'intérieur du corps 102 et à l'avant par rapport aux pions de verrouillage 104. En d'autres termes, la dent d'indexage 106 est orientée vers l'élément mâle 200 lors de l'emmanchement ou accouplement des éléments 100 et 200 du raccord R. De plus, l'orientation angulaire de la dent d'indexage 106 autour de l'axe X1 est la même que celle d'un des pions de verrouillage 104.The
A l'intérieur du corps externe 102 est disposé un corps interne isolant 110, de forme cylindrique et également centré sur l'axe X1. Ce corps 110 définit deux logements 111 dans chacun desquels est disposée une broche de puissance 112. Selon des aspects non représentés de l'invention, le corps 110 peut également contenir une broche de terre et des broches pilotes, comme envisagé dans
L'élément de raccord femelle 100 est monté sur un élément de carrosserie 500 de véhicule automobile au moyen de vis 502 qui traversent une collerette périphérique externe 1024 du corps 102, ainsi que la carrosserie 500. A la
L'élément mâle 200, qui est représenté à l'état découplé aux
Comme dans l'élément femelle 100, un corps isolant interne 210 est disposé à l'intérieur du corps 202 de l'élément mâle 200 et englobe deux contacts de puissance 212 qui sont complémentaires des broches 112 et chacun disposés dans un logement 211 du corps isolant 210. Le corps isolant 210 est maintenu en appui contre un épaulement interne 2024 du corps 202 grâce à une bague arrière 203 qui est vissée sur l'arrière du corps 202, avec interposition d'un point d'étanchéité 204 et qui reçoit de manière étanche le câble souple 604. Le corps isolant 210 est rendu fixe en rotation autour de l'axe X2 dans le corps 202 par coopération d'une nervure axiale du corps isolant 210 avec une rainure axiale du corps 202.As in the
Une bague de verrouillage 216 est montée, mobile en rotation, autour du corps 202. La bague de verrouillage 216 est immobilisée en translation, le long de l'axe X2, par rapport au corps 202. En effet, la bague de verrouillage 216 est coincée axialement entre un épaulement externe 2026 du corps 202 et la bague arrière 203. Un volant 218 est solidaire en rotation et en translation avec la bague 216. Ce volant comprend trois branches 2182 qui relient une bague intérieure et arrière 2184 à une bague externe et avant 2186. Le volant 218 est immobilisé sur la bague de verrouillage 216 au moyen de vis 220.A locking
La bague de verrouillage 216 comporte trois rainures de verrouillage 222 régulièrement réparties, à 120°, autour de l'axe X2 et qui s'étendent chacune entre une embouchure 2222 découpée dans le bord avant 2162 de la bague de verrouillage 216 et une extrémité arrière 2224 qui forme une zone de verrouillage d'un pion 104. Le bord avant 2162 de la bague de verrouillage 216 est disposé à l'arrière de l'extrémité avant 2022 du corps 202. Entre l'embouchure 2222 et l'extrémité arrière 2224, chaque rainure 222 est définie entre un bord avant 2226 et un bord arrière 2228, ces bords étant inclinés par rapport à l'axe X2 et par rapport à un plan perpendiculaire à l'axe X2. En particulier les bords avant 2226 et arrière 2228 sont sensiblement parallèles. Plus précisément, on considère un axe X'2 parallèle à l'axe X2 et passant par le centre de l'embouchure 2222. On considère également une droite D222 parallèle au bord avant 2226 ou au bord arrière 2228 de la rainure 222 dans un plan ortho-radial à l'axe X2 passant par l'axe X'2. Dans ce plan ortho-radial, l'axe X'2 et la droite D222 définissent entre eux un angle γ222, pris sur l'avant de l'élément de raccord 200, qui est non nul et strictement inférieur à 90°. En pratique, l'angle γ222 est entre 30° et 60°, préférentiellement de l'ordre 45°. On remarque que le bord avant 2226 de la rainure 222 est continu, de l'extrémité arrière 2224 jusqu'au niveau de l'embouchure 2222. Le bord arrière 2228 est, quant à lui, interrompu pour laisser passer deux pattes, à savoir une patte de libération 2407 et une patte de sécurité 2408 dont les fonctions sont explicitées dans ce qui suit.The
Comme il ressort plus particulièrement de la
L'élément de raccord mâle 200 comprend six billes 230, chacune logées dans un orifice radial traversant 2164 de la bague de verrouillage 216. Le diamètre de chaque bille 230 est supérieur à l'épaisseur radiale de la bague de verrouillage 216, de telle sorte que, lorsqu'elles sont engagées dans les orifices 2164, les billes 230 dépassent radialement de la bague 216, soit vers l'intérieur en direction de l'axe X2, soit vers l'extérieur à l'opposé de cet axe. Le nombre de billes 230 peut être différent de six, tout en étant supérieur ou égal à un. Lorsque plusieurs billes sont utilisées, elles sont de préférence régulièrement réparties autour de l'axe X2 grâce à un positionnement adéquat des orifices 2164.The
Le corps 202 est pourvu de six gorges identiques 2021 qui s'étendent chacune de façon circonférentielle sur la surface externe du corps 202 et qui se terminent chacune par une empreinte ou cavité 2023, en forme de calotte sphérique concave. Chaque empreinte 2023 est creusée plus profondément, dans une direction radiale, dans le corps 202 que les gorges 2021. Chaque empreinte 2023 communique avec une gorge 2021. La surface de chaque empreinte 2023 est complémentaire de la partie radiale interne d'un obstacle 230. Dans la configuration des
On remarque que, à l'opposé de chaque empreinte 2023, chaque gorge 2021 est bordée par un bossage 2025 qui la sépare de l'empreinte 2023 constituant l'extrémité de la gorge 2021 adjacente.Note that, opposite each
L'élément de raccord mâle 200 comprend également une bague de blocage 240 qui comprend une partie avant 2402 et une partie arrière 2404. Ces parties 2402 et 2404 sont assemblées au moyen de vis 2406 qui sont au nombre de cinq comme visible à la
La partie arrière 2404 de la bague de blocage 240 définit une première surface radiale interne S1 cylindrique à base circulaire et centrée sur l'axe X2 et dont le rayon R1 est sensiblement égal au rayon extérieur de la bague de verrouillage 216 mesuré au niveau d'une surface radiale externe 2166.The
La partie arrière 2404 de la bague de blocage 240 définit également une deuxième surface radiale interne S2, qui est cylindrique à base circulaire comme la surface S1, mais dont le rayon R2 est strictement supérieur au rayon R1 et qui est décalée sur l'avant selon l'axe X2 par rapport à la surface S1. Les surfaces radiales internes S1 et S2 sont reliées par une surface tronconique interne S3. En pratique, la différence entre le rayon R1 et R2 est supérieure ou égale à la profondeur des empreintes 2023 par rapport aux gorges 2021. La structure étagée formée par les surfaces radiales internes S1 et S2 de la bague de blocage 240 autorise deux positions radiales distinctes des billes 230, par rapport à la bague de verrouillage 216, au sein des orifices 2164, à savoir :
- une première position de blocage, dans laquelle la surface S1 est axialement en regard des billes 230, de sorte qu'elle contraint ces billes à pénétrer dans les empreintes 2023, ce qui solidarise en rotation la bague de verrouillage 216 et le corps 202,
- une deuxième position de libération, dans laquelle les billes 230 peuvent être partiellement engagées dans un volume V1 défini entre la surface S2 et la surface radiale externe de la bague de verrouillage 216, au point qu'elles peuvent être extraites des empreintes 2023 en permettant une rotation relative entre la bague de verrouillage 216 et le corps 202.
- a first locking position, in which the surface S1 is axially opposite the
balls 230, so that it forces these balls to penetrate into therecesses 2023, which rotatably secures thelocking ring 216 and thebody 202, - a second release position, in which the
balls 230 may be partially engaged in a volume V1 defined between the surface S2 and the outer radial surface of thelocking ring 216, to the extent that they can be extracted from theimprints 2023 allowing a relative rotation between the lockingring 216 and thebody 202.
Les billes 230 constituent donc chacune un obstacle qui permet de bloquer en rotation la bague de verrouillage 216 par rapport au corps 202, lorsque cela est nécessaire, comme expliqué ci-après. Les gorges 2021 et les empreintes 2023 constituent ensemble des logements dans lesquels sont engagées les parties radiales internes des billes 230, ces parties radiales et internes ayant, par rapport au corps 202 et au sein de ces logements, un mouvement radial au niveau des empreintes 2023 et un mouvement circonférentiel au niveau des gorges 2021.The
La bague de blocage 240 comprend également trois pattes de libération 2407 qui s'étendent chacune à travers un logement longitudinal 2167 ménagé dans la bague de verrouillage 216 et qui débouchent chacune dans une rainure de verrouillage 222. La bague de blocage 240 comprend également trois pattes de sécurité 2408 chacune engagée dans un logement longitudinal 2168 de la bague de verrouillage 216 et qui débouchent également chacune dans une rainure de verrouillage 222. Comme mentionné ci-dessus, les pattes de libération 2407 et de sécurité 2408 interrompent le bord arrière 2228 de la rainure 222 dans laquelle elles sont engagées.The
Comme les logements 2167 et 2168 sont longitudinaux, c'est-à-dire parallèles à l'axe X2, et compte tenu des dimensions respectives des pattes 2407 et 2408 et de ces logements, la bague de blocage 240 est solidaire en rotation, autour de l'axe X2, avec la bague de verrouillage 216.As the
Un joint torique d'étanchéité 270 est monté dans une gorge périphérique externe 2028 du corps 202, cette gorge étant disposée, le long de l'axe X2, au-delà du fond 2064 de la rainure d'indexage 206 par rapport à l'extrémité avant 2022 du corps 202.An O-
L'élément de raccord mâle 200 comprend également une bague de protection 280 qui est disposée autour de la partie avant du corps 202 et qui protège les embouchures respectives 2062 et 2222 de la rainure d'indexage 206 et des rainures de verrouillage 222 contre des salissures. Pour permettre la visualisation de certaines parties du raccord R, cette bague de protection 280 n'est pas représentée sur les
La bague de blocage 240 est pourvue d'une collerette périphérique externe 2405
Le fonctionnement du raccord R est le suivant :
En configuration désaccouplée, les éléments femelle 100 et mâle 200 du raccord sont dans la configuration des
The operation of the connection R is as follows:
In uncoupled configuration, the female 100 and male 200 elements of the connector are in the configuration of the
Lorsqu'il convient d'emmancher ou d'accoupler les éléments 100 et 200 du raccord, leurs axes centraux respectifs X1 et X2 sont alignés sur un axe d'emmanchement commun XR qui est l'axe central du raccord R. Ensuite, les organes d'indexage formés par la dent d'indexage 106 et la rainure d'indexage 206 sont actionnés en alignant ces organes l'un avec l'autre selon une direction parallèle à l'axe XR et en engageant la dent d'indexage 106 dans la rainure d'indexage 206. La coopération des organes d'indexage 106, 206 aligne, selon l'axe XR, chaque broche 112 supportée par le premier corps 104 avec le contact correspondant 212 supporté par le deuxième corps 204. Les corps 102 et 202 sont alors en configuration indexée.When it is necessary to press or couple the
Comme la dent d'indexage 106 est alignée angulairement avec l'un des pions 104, alors que l'embouchure 2222 de l'une des rainures de verrouillage 222 est alignée angulairement avec l'embouchure 2062 de la rainure d'indexage 206 par le blocage de la rotation de la bague de blocage 216 par les billes 230, ce pion 104 est automatiquement aligné avec cette embouchure 2062 selon l'axe X'2, sans qu'il soit nécessaire d'avoir recours à un chanfrein de centrage. En particulier, l'axe X'2 est sécant avec l'axe Y104 du pion 104.As the
En d'autres termes, dans la configuration préalable des
L'emmanchement effectif des éléments 100 et 200 commence lors d'une première étape d'emmanchement représentée aux
A partir de la configuration préalable où chaque pion 104 est aligné sur l'embouchure 2222 d'une rainure de verrouillage 222 et situé à l'extérieur de cette rainure, le mouvement axial de la première étape d'emmanchement des éléments 100 et 200 a pour effet d'amener le galet 1044 de chaque pion 104 dans chaque rainure de verrouillage 222 puis en appui contre la patte de libération 2407 en saillie dans la rainure de verrouillage 222 correspondante.From the preliminary configuration where each
Cet appui des galets 1044 sur les pattes de libération 2407 et la poursuite de l'emmanchement des éléments 100 et 200 ont pour effet de faire reculer la bague 240 à l'encontre de l'effort élastique exercé par le ressort 260, ce qui décale axialement la surface S1 par rapport aux billes 230, lesquelles se retrouvent alors radialement en regard de la surface S2. Les billes 230 peuvent alors se déplacer par rapport au corps 202 depuis leur position de blocage dans leur position de libération et être partiellement engagées dans le volume V1, qui est constitué par un interstice radial défini entre la surface S2 et la surface radiale externe 2166 de la bague 216. Ce faisant, les billes 230 peuvent être radialement extraites des empreintes 2023 pour rouler chacune dans une gorge 2021. Ainsi, en cours d'emmanchement, dans la configuration des
Le passage de la configuration désaccouplée à la configuration des
Comme visibles aux
En poursuivant l'emmanchement des éléments mâle et femelle l'un dans l'autre, on parvient dans la configuration des
Comme visible à la
Dans la configuration totalement emmanchée ou accouplée représentée aux
On comprend en comparant les
Lorsque chaque pion 104 atteint l'extrémité arrière 2024 de la rainure 222 dans lequel il est engagé, il est verrouillé dans cette extrémité par la patte de sécurité 2408 qui est revenue dans cette rainure car la bague de blocage 240 est repoussée élastiquement vers l'avant par le ressort 260 en appui axial contre les billes 230. Ainsi, la patte de sécurité 2408 verrouille axialement le pion 104 adjacent par rapport au corps mâle 202. La patte de sécurité 2408 bloque également la rotation entre la bague de verrouillage 216 et le pion 104. La dent d'indexage 106 est toujours en coopération avec la rainure d'indexage 206. Au cours de l'emmanchement, et selon une approche cohérente avec celle envisagée dans
Dans la configuration désaccouplée des
Lorsque la recharge du véhicule équipée de l'élément de raccord femelle 100 est terminée, l'opérateur tire sur la bague de blocage en exerçant sur la collerette 2405 un effort axial dirigé vers l'arrière de l'élément de raccord mâle 200, comme représenté par les flèches F2 aux
A la fin de la plage de rotation angulaire de la bague de verrouillage 216, chaque bille 230 est en regard d'une empreinte 2023 et pion de verrouillage 104 se retrouve dans une position alignée par rapport à l'embouchure 2222 d'une rainure de verrouillage 222, l'une des embouchures 2222 étant en outre alignée avec l'embouchure 2602, car l'un des pions 104 est aligné avec la dent 106. La bague de blocage 240 qui est relâchée par l'opérateur est repoussée par le ressort 260 vers l'avant, au point qu'elle revient en butée contre la bague de verrouillage 216, ce qui a pour effet d'aligner axialement la surface S1 avec les billes 230, lesquelles sont alors engagées dans les empreintes 2023, puis maintenues en place dans ces empreintes. Comme les billes 230 maintenues dans les empreintes 2023 n'ont pas de possibilité de mouvement dans la direction circonférentielle, la rotation de la bague de verrouillage par rapport au corps 202 est de nouveau bloquée. La bague de verrouillage est ainsi immobilisée en rotation autour du corps 202, dans une configuration où l'embouchure 2222 de l'une des rainures 222 est alignée axialement avec l'embouchure 2602 de la rainure d'indexage 206, ce qui garantit un alignement effectif des trois pions de verrouillage 104 avec les embouchures 2222 lors d'une opération ultérieure d'emmanchement des éléments 100 et 200 du raccord R, après mise en coopération des organes d'indexage 106 et 206.At the end of the angular rotation range of the
Au désaccouplement, lors de l'avancée de la bague de blocage 240, chaque patte de libération 2407 s'avance également dans la rainure de verrouillage 222 correspondante, ce qui a pour effet de repousser le pion de verrouillage 104 vers l'embouchure 2222, facilitant ainsi le désaccouplement des éléments 100 et 200. Au terme de cette opération, le corps femelle 102 est retiré de l'élément mâle 200 par l'opérateur et chaque pion 104 quitte sa rainure de verrouillage 222 par son embouchure 2222. Le désaccouplement est alors effectif et l'élément mâle de raccord 200 est prêt pour une autre connexion, avec sa bague de verrouillage 216 bloquée angulairement dans une configuration compatible avec la mise en place d'un nouvel élément de raccord femelle 100.On uncoupling, when advancing the
En tenant compte d'une situation où le véhicule dont la carrosserie 500 est équipée du raccord femelle 100 quitterait la station de recharge 600 avant la déconnexion par l'opérateur, un désaccouplement de sécurité peut être prévu, en attachant la bague de blocage 240 à un point fixe de la station de recharge. Ainsi, un mouvement de la bague de blocage par rapport à la station de recharge est limité au mouvement nécessaire pour l'accouplement. Dans ce cas, le mouvement de retrait de l'élément raccord femelle 100 porté par la carrosserie 500 du véhicule qui s'écarte le long de l'axe d'emmanchement XR, alors que le raccord R est encore accouplé, entraîne le corps mâle 202 et la bague de verrouillage 216 dans le même mouvement que le véhicule, alors que la bague de blocage 240 est retenue sur la station de recharge 600. Ceci a pour effet de déplacer la bague de blocage par rapport à la bague de verrouillage vers l'arrière de l'élément de raccord mâle 200, ce qui rétracte la patte de sécurité 2408 et libère les pions de verrouillage 104, lesquels sont guidés par les bords avant inclinés 2226 vers les embouchures 2222 des rainures de verrouillage 222 et sortent de ces rainures en désaccouplant les éléments mâle et femelle du raccord R et en limitant les dommages.Taking into account a situation where the vehicle whose
Au vu de ce qui précède, les avantages de l'invention sont multiples.In view of the foregoing, the advantages of the invention are manifold.
Tout d'abord, les obstacles formés par les billes 230 dans leur première position de blocage permettent de maintenir la bague de verrouillage 216 dans une position angulaire par rapport au corps 202 qui est compatible avec l'accouplement ou emmanchement des éléments 100 et 200, en particulier avec l'introduction automatique des pions de verrouillage 104 dans les rainures de verrouillage 222, dès lors que les corps mâle et femelle 102 et 202 sont rapprochés et indexés angulairement grâce à la coopération de la dent 106 et de la rainure 206. L'encombrement longitudinal du raccord R est réduit par rapport à celui connu de
En outre, comme la bague de blocage 240 a un mouvement essentiellement axial et comme elle est repoussée directement par une surface axiale liée au corps de l'élément de raccord femelle 100, l'escamotage des pattes de libération 2407 est garanti pour une configuration donnée des pions de verrouillage 104 par rapport aux rainures 222. En particulier, lorsque les pions de verrouillage 104 sont en contact avec les pattes de libération 2407 pour repousser la bague de blocage 240, la position de ces pions peut être garantie avec précision par rapport aux rainures 222 lors de la libération de la rotation de la bague de verrouillage 240.In addition, since the
La position reculée intermédiaire de la bague de blocage 204 est atteinte lorsque les pions 104 parviennent en butée contre les bords arrière 2228 des rainures de verrouillage 222. Ainsi la rotation de la bague de verrouillage 216 pour le verrouillage des pions 104 dans les rainures 222 est libérée lorsque les pions 104 sont, de façon certaine, engagés en entier dans les rainures de verrouillage 222, autrement dit, lorsque toute la périphérie de chacun des galets 1044 se trouve dans une rainure de verrouillage 222. Ainsi, la rotation de la bague de verrouillage 216 entraîne forcément les pions 104 vers leur position verrouillée dans l'extrémité fermée 2224 de chaque rainure de verrouillage 222. La libération de la rotation de la bague de verrouillage 216 intervient donc lorsque cette rotation permet effectivement un verrouillage des pions 104.The intermediate retracted position of the
La position des pions 104 est verrouillée contre toute rotation dans le sens de déverrouillage, grâce à la patte de sécurité 2408 immobile longitudinalement. Le recours à une telle patte de sécurité 2408 permet de limiter les efforts tangentiels sur les billes 230 en configuration accouplée.The position of the
La multiplication des billes 230 permet de diminuer l'effort de contact ponctuel entre la bague de blocage 240 et chacune de ces billes, lorsque le raccord R est en configuration accouplée.The multiplication of the
Le recours à des pattes de libération 2407 et des pattes de sécurité 2408 décalées angulairement les unes des autres permet de démultiplier l'effort d'accouplement à fournir sur la bague de verrouillage 216.The use of
En outre et comme visible à la
La dissociation de la bague de blocage 240 en deux parties 2402 et 2404 assemblées permet de sélectionner des matériaux différents pour ces deux parties. En l'occurrence, un matériau plus dur, tel que l'acier trempé, peut être utilisé pour la partie arrière 2404 en contact avec les billes 230, alors qu'un matériau moins résistant, tel que d'aluminium, peut être utilisé pour la partie avant qui est en contact avec les pions de verrouillage 104.The disassociation of the
Le déblocage de la rotation de la bague de verrouillage est visible par l'opérateur car la bague de blocage 240 est située sur l'extérieur du corps 202 et adopte, dans ce cas, une position reculée par rapport au corps 202.The unlocking of the rotation of the locking ring is visible by the operator since the
L'invention n'est pas limitée au mode de réalisation décrit ci-dessus et plusieurs variantes peuvent être envisagées.The invention is not limited to the embodiment described above and several variants can be envisaged.
En variante, la position reculée de la bague de blocage 204, dans laquelle elle libère les obstacles 230, qui peuvent alors se déplacer dans leur deuxième position de libération, est atteinte lorsque seulement une partie de chacun des pion 104 est engagée dans les rainures de verrouillage 222.Alternatively, the retracted position of the
Comme mentionné ci-dessus, le nombre de billes peut être différent de six. De même, le nombre de pions et de rainures de verrouillage 104 et 222 peut être différent de trois. Lorsque plusieurs pions et rainures de verrouillage sont utilisés, ils sont de préférence equirépartis autour de l'axe XR.As mentioned above, the number of beads may be different from six. Similarly, the number of pins and locking
En outre, la bague de blocage 240 peut être repoussée vers l'arrière par une portion du corps femelle 102 autre que le galet 1044 d'un pion de verrouillage 104, en pratique une surface axiale du corps femelle 102 autre que celle des pions de verrouillage 104. Cette variante impose une bague de blocage plus longue pour interagir directement avec le corps 102 de l'élément de raccord femelle 100.In addition, the
Deux empreintes 2023 en portion de sphère peuvent être prévues, à savoir une à chaque extrémité de la plage angulaire de mouvement de la bague de verrouillage 216 par rapport au pion 104. En position radiale interne, dans leur première position de blocage, les billes 230 coopèrent avec la première empreinte sphérique pour bloquer la rotation de la bague de verrouillage par rapport au deuxième corps en configuration désaccouplée et, dans leur deuxième position de blocage, avec la deuxième empreinte sphérique pour bloquer la rotation de la bague de verrouillage par rapport au deuxième corps en configuration accouplée. Les pattes de sécurité 2408 peuvent alors être omises puisque les billes sont maintenues dans les deuxièmes empreintes sphériques en configuration accouplée par la bague de blocage en position avancée, ce qui assure le blocage en rotation des pions de verrouillage 104 au sein des rainures de verrouillage 222.Two
Selon une autre variante, chaque patte de sécurité 2408 peut être constituée par une patte de libération. Dans ce cas, chaque patte de sécurité est escamotée par le pion 104 correspondant lorsque celui-ci s'engage dans l'embouchure 2222 d'une rainure 222 et cette patte revient dépasser dans la rainure 222 lorsque le pion atteint sa position verrouillée, après rotation relative du pion et de la rainure de verrouillage. Ainsi la bague de blocage 240 est mobile par rapport au corps 202 entre une position avancée et une position reculée dans laquelle la rotation de la bague de verrouillage 216 est possible, la bague de blocage 240 étant en position avancée en configuration emmanchée du raccord.According to another variant, each
Dans l'exemple des figures, la patte de libération 2407 est monobloc avec la bague de blocage 240. Ceci n'est pas obligatoire et la ou les pattes de libération peuvent être constituée(s) par une ou des tiges fixée(s) sur la bague de blocage.In the example of the figures, the
Selon une autre variante, le raccord peut avoir un fonctionnement automatique à la connexion. En d'autres termes, lorsque les pattes de libération 2407 sont totalement rétractées par les pions 104, les pions 104 sont en butée contre les bords arrière inclinés 2228 des rainures de verrouillage 222 et toute action de rapprochement entre le corps 202 et le corps 102 créé une composante tangentielle qui entraîne la bague de verrouillage en rotation. Dans ce cas, il n'est pas nécessaire à l'opérateur d'exercer un couple sur le volant 218.According to another variant, the connector may have an automatic operation at the connection. In other words, when the release lugs 2407 are fully retracted by the
La dent 106 d'indexage peut être prévue sur le corps 202, alors que la rainure d'indexage est prévue sur le corps 102. Il peut être prévu plus de deux organes d'indexage 106 et 206 sur les corps 102 et 202. En variante non représentée, l'indexage peut être assuré par la coopération d'une broche de type de la broche 112 avec un logement complémentaire ménagé sur l'isolant de l'élément de raccord complémentaire. La répartition des organes d'indexage par rapport aux pions et rainures de verrouillage peut différer de l'exemple décrit. En particulier, les pions et rainures peuvent ne pas être équi-répartis autour de l'axe XR. L'organe d'indexage d'un élément de raccord peut ne pas être aligné angulairement avec une rainure ou un pion de verrouillage. La position angulaire de la bague de verrouillage, et donc de chacune des embouchures des rainures de verrouillage, par rapport au corps du deuxième élément de raccord, lorsque la rotation de la bague de verrouillage est bloquée par les obstacles, est choisie, par rapport à l'organe d'indexage du deuxième élément de raccord, de telle sorte qu'elle corresponde à la position angulaire des pions de verrouillage par rapport à l'organe d'indexage du premier élément de raccord. En outre, les pions 104 peuvent être monoblocs.The
Enfin, la répartition des broches et contacts électriques 112, 212 et équivalents peut être différente de celle représentée. Certains contacts peuvent être montés dans le corps 102, alors que les broches correspondantes sont dans le corps 202.Finally, the distribution of the pins and
Le mode de réalisation et les variantes envisagés ci-dessus peuvent être combinés pour générer de nouveaux modes de réalisation de l'invention.The embodiment and variants envisaged above can be combined to generate new embodiments of the invention.
Claims (15)
- An electric connector (R) comprising a first connector element (100) and a second connector element (200) complementary to the first connector element, these two connector elements being provided to fit in one another along a fitting axis (XR),- the first connector element comprising• a first body (102) that is secured to at least one locking pin (104) and that bears at least one first prong (112) or first contact,• at least one first indexing member (106) secured to the first body (102),- the second connector element comprisingthe electric connector being characterized• a second body (202) that supports at least one second contact (212) or second pin complementary to the first prong or first contact,• a locking ring (216) mounted around the second body while being axially immobilized, along the fitting axis (XR), and rotatable, around this axis, relative to the second body, this locking ring being provided with at least one locking slot (222), with a mouth (2222) and a locking end (2224) provided to receive the locking pin (104) in a configuration where the locking pin is axially locked, along the fitting axis (XR), relative to the second body (202), and• at least one second indexing member (206) secured to the second body (202) and configured to cooperate with the first indexing member (106) to position the first body (102) angularly relative to the second body (202) around the fitting axis (XR), during the fitting of the first and second connector elements, before the engagement of the locking pin in the locking slot,• at least one obstacle (230) movable relative to the locking ring (216) between:• a first blocking position, in which the obstacle blocks the rotation of the locking ring (216), relative to the second body (202), and• a second, released position in which the obstacle does not oppose a rotation of the locking ring (216) around the second body (202),• a blocking ring (240) movable along the fitting axis (XR) relative to the second body (202) between:• a first forward position, and• at least one second withdrawn position, and• a member (260) for elastically returning the blocking ring toward its first forward position,
in that the obstacle (230), the locking ring (216) and the second body (202) are configured so that, when the first and second indexing members (106, 206) cooperate and when the obstacle is in its first blocking position, this obstacle blocks the locking ring (216) relative to the second body (202) in a configuration where the mouth (2222) of the locking slot is aligned, in a direction (X'2) parallel to the fitting axis (XR), with the locking pin (104), and in that the blocking ring (240) is configured so as, during the fitting of the first and second connector elements (100, 200) and when the first and second indexing members cooperate (106, 206),- to be in its first forward position, in which it keeps the obstacle (230) in its first blocking position, before the locking pin (104) is engaged in the locking slot (222), and- to be pushed by a portion (1044; 102) of the first connector element, from its first forward position into its second withdrawn position, in which it does not oppose the passage of the obstacle toward its second released position. - The electric connector according to claim 1, characterized in that the blocking ring (240) is secured in rotation with the locking ring (216).
- The electric connector according to any one of the preceding claims, characterized in that the second body (202) comprises at least one concave cavity (2023) and in that the obstacle (230) is engaged in the concave cavity (2023) when it is in its first blocking position.
- The electric connector according to claim 3, characterized in that the body (202) also comprises a circumferential peripheral groove (2021) that communicates with the concave cavity (2023) and that is able to receive the obstacle (230) when it is in its second released position.
- The electric connector according to one of the preceding claims, characterized in that the obstacle (230) is movable in a radial orifice (2164) of the locking ring (216) and in that the blocking ring (240) is provided with a first inner radial surface (S1), which, in the uncoupled configuration of the electric connector (R), surrounds the obstacle (230) and keeps the obstacle in its first blocking position.
- The electric connector according to claim 5, characterized in that the blocking ring (240) is provided with a second inner radial surface (S2), which is cylindrical with a circular base and the radius (R2) of which is strictly larger than the radius (R1) of the first inner radial surface (S1), which is also cylindrical with a circular base, while the second inner radial surface defines a housing (V1) for partially receiving the obstacle (230) when the blocking ring is in its second withdrawn position.
- The electric connector according to claim 6, characterized in that the blocking ring (240) has multiple parts and comprises- a front part (2402) intended to be in contact with the portion (1044) of the first connector element (100) during the fitting of the first and second connector elements (100, 200), and- a rear part (2404) that is provided with first and second inner radial surfaces (S1, S2).
- The electric connector according to one of the preceding claims, characterized in that the blocking ring (240) comprises a release tab (2407) that is aligned with the mouth (2222), in a direction (X'2) parallel to the fitting axis (XR), which is axially movable in the locking slot (222) and which is configured to be pushed by the portion of the first connector element (100), which is then formed by the locking pin (104) during the fitting of the first and second connector elements (100, 200), while moving the blocking ring from its first forward position to its second withdrawn position.
- The electric connector according to one of the preceding claims, characterized in that during the fitting of the first and second connector elements (100, 200), the blocking ring (240) reaches its second withdrawn position when the locking pin (104) is completely engaged in the locking slot (222).
- The electric connector according to one of the preceding claims, characterized in that it comprises at least three obstacles (230), preferably six obstacles, distributed around the fitting axis (XR), and each obstacle is formed by a ball.
- The electric connector according to one of the preceding claims, characterized in that the second connector element (200) comprises:- a safety tab (2408) stationary in rotation around the fitting axis (XR), and axially movable along this axis, relative to the locking ring (216) between• a first stop position, in which it blocks the passage of the locking pin (104) between the locking end (2224) of the locking slot (222) and the mouth (2222) of the locking slot, and• a second released position, in which it allows the passage of the locking pin,- a member (260) for elastically returning the safety tab toward its first stop position.
- The electric connector according to claim 8 and claim 11, characterized in that the safety tab (2408) is different from the release tab (2407).
- The electric connector according to one of claims 11 and 12, characterized in that the safety tab (2408) is fast with the blocking ring (240).
- The electric connector according to one of the preceding claims, characterized in that the locking slot (222) comprises a front edge (2227) and/or a rear edge (2228) inclined relative to the fitting axis (XR) and relative to a plane perpendicular to the fitting axis (XR) and that extends from the mouth (2222) to the locking end (2224).
- The electric connector according to one of the preceding claims, characterized in that in the fitted configuration of the connector, the blocking ring (240) at least partially covers the locking slot (222) and the locking pin (104).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL17160227T PL3217484T3 (en) | 2016-03-11 | 2017-03-10 | Electric connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1652061A FR3048822B1 (en) | 2016-03-11 | 2016-03-11 | ELECTRICAL CONNECTION |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3217484A1 EP3217484A1 (en) | 2017-09-13 |
EP3217484B1 true EP3217484B1 (en) | 2019-01-02 |
Family
ID=56101617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17160227.9A Active EP3217484B1 (en) | 2016-03-11 | 2017-03-10 | Electric connector |
Country Status (7)
Country | Link |
---|---|
US (1) | US9899772B2 (en) |
EP (1) | EP3217484B1 (en) |
CN (1) | CN107181108B (en) |
ES (1) | ES2710019T3 (en) |
FR (1) | FR3048822B1 (en) |
PL (1) | PL3217484T3 (en) |
TR (1) | TR201902621T4 (en) |
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CN108189012A (en) * | 2018-03-02 | 2018-06-22 | 深圳慧昱教育科技有限公司 | A kind of mechanical arm and robot |
RU2020134236A (en) | 2018-04-06 | 2022-05-06 | Фишер Коннекторс Холдинг С.А. | MULTIPLE CONNECTOR |
WO2019193567A1 (en) | 2018-04-06 | 2019-10-10 | Fischer Connectors Holding S.A. | Multipolar connector |
DE102018109411A1 (en) | 2018-04-19 | 2019-10-24 | Festool Gmbh | Connectors |
CN109649669B (en) * | 2018-12-26 | 2022-03-18 | 成都优艾维智能科技有限责任公司 | A rotatory auto-lock probe connection structure for unmanned aerial vehicle |
CN112003077A (en) * | 2019-05-25 | 2020-11-27 | 费斯托股份两合公司 | Coupling system for electrical connections |
DE102019125784B4 (en) * | 2019-09-25 | 2021-02-11 | Audi Ag | Charging socket for an energy supply arrangement, corresponding energy supply arrangement and method for operating a charging socket |
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- 2017-03-10 TR TR2019/02621T patent/TR201902621T4/en unknown
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Also Published As
Publication number | Publication date |
---|---|
US9899772B2 (en) | 2018-02-20 |
FR3048822B1 (en) | 2018-04-06 |
CN107181108A (en) | 2017-09-19 |
EP3217484A1 (en) | 2017-09-13 |
US20170264049A1 (en) | 2017-09-14 |
ES2710019T3 (en) | 2019-04-22 |
TR201902621T4 (en) | 2019-03-21 |
FR3048822A1 (en) | 2017-09-15 |
PL3217484T3 (en) | 2019-09-30 |
CN107181108B (en) | 2020-07-24 |
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