EP0147315B1 - Connecteur électrique utilisé dans un milieu liquide - Google Patents

Connecteur électrique utilisé dans un milieu liquide Download PDF

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Publication number
EP0147315B1
EP0147315B1 EP84402669A EP84402669A EP0147315B1 EP 0147315 B1 EP0147315 B1 EP 0147315B1 EP 84402669 A EP84402669 A EP 84402669A EP 84402669 A EP84402669 A EP 84402669A EP 0147315 B1 EP0147315 B1 EP 0147315B1
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EP
European Patent Office
Prior art keywords
piston
bore
pin
sealing member
connector
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.)
Expired
Application number
EP84402669A
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German (de)
English (en)
Other versions
EP0147315A3 (en
EP0147315A2 (fr
Inventor
Alain P. Pottier
James J. Walulik
Ralph L. Simmons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Services Petroliers Schlumberger SA
Schlumberger NV
Schlumberger Ltd USA
Original Assignee
Societe de Prospection Electrique Schlumberger SA
Schlumberger NV
Schlumberger Ltd USA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/565,794 external-priority patent/US4589717A/en
Application filed by Societe de Prospection Electrique Schlumberger SA, Schlumberger NV, Schlumberger Ltd USA filed Critical Societe de Prospection Electrique Schlumberger SA
Publication of EP0147315A2 publication Critical patent/EP0147315A2/fr
Publication of EP0147315A3 publication Critical patent/EP0147315A3/en
Application granted granted Critical
Publication of EP0147315B1 publication Critical patent/EP0147315B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/028—Electrical or electro-magnetic connections
    • E21B17/0285—Electrical or electro-magnetic connections characterised by electrically insulating elements

Definitions

  • This invention concerns an electrical connector assembly for effecting repeated connections between groups of electrical contacts in a fluid medium, and comprising a male connector and a female connector each having a group of contacts.
  • a connector assembly of this type is necessary particularly more in deviated hole logging techniques based on U.S. Patent 4,349,072 and copending patent application 460,340, filed on January 24, 1983, in view of establishing the electrical connection between a logging tool placed at the end of a drill pipe and a transmission cable connected to a surface unit.
  • the drilling mud which fills a well has a very high hydrostatic pressure and is usually elelctri- cally conductive. In addition, it contains clay or some other analogous material. It is thus essential that the mud be prevented from entering the female connector where the connection is to be made.
  • U.S. Patent 3,729,699 discloses the use of a shuttle to form a tight seal on the dielectric-fulid- filled bore of the female connector.
  • the pressure on this bore is maintained at a level slightly higher than the pressure of the surrounding fluid by a compensation device.
  • the shuttle is held in position by a spring and is pushed towards the interior of the bore by the male connector when the latter is inserted to make the connection.
  • the shuttle is brought back to its sealing position by the spring.
  • U.S. Patent 4,390,229 or its British equivalent GB 2 070 348 describes a female connector comprising a tubular housing, a plurality of axially spaced contacts forming a bore into which the pin of a male connector can be inserted.
  • the female connector has a sealing member to prevent the external fluid from entering the bore and, at the rear of the bore, a chamber filled with grease.
  • U.S. Patent 4,142,770 describes a female connector having a bore filled with dielectric liquid and closed by a sealing member slidable in the bore. The end of a male connector engages the sealing member to move it from a forward to a rear position when the male connector is inserted into the bore. A spring urges the sealing member to the forward position.
  • U.S. Patent 3,641,479 describes an underwater connector assembly the female portion of which has several axially spaced annular contacts.
  • the insulation between the pairs of adjacent contacts when the male connector is inserted, as well as the seal from external fluid is accomplished by O-rings disposed in alternate arrangement with the contacts in the female connector. These O-rings are radially compressed by the insertion of the male connector.
  • Another known method uses generally tubular seals occupying the invervals between the adjacent contacts, instead of O-rings.
  • Each seal has an inside diameter smaller than the outside diameter of the contacts of the male connector, and is thus compressed when the male connector is inserted.
  • the central portion of the seals is surrounded by an annular space communicating with the outside fluid.
  • the known devices are, however, not completely efficient. It may happen that the fluid present on the pin of the male connector before its insertion is not completely wiped off and that a fluid film remains on part of the pin.
  • the external fluid e.g. drilling mud in the case of a well, is generally electrically conductive, and faulty insulation can result from the continued presence of a fluid film on the pin when the connection is made.
  • An object of this invention is an electrical connector assembly in which losses of dielectric material with each disconnection are substantially eliminated and which is thus capable of a greater number of connection and disconnection operations.
  • Another object of the invention is a multicontact connector assembly in which the insulation between adjacent contacts during connection is improved.
  • a first aspect of the invention provides for an electrical connector assembly according to claim 9.
  • the invention provides for a connector assembly according to claim 1.
  • the male connector represented in figure 1 comprises an elongated cylindrical pin 10 with a series of axially spaced annular electrical contacts 11.
  • the contacts 11 are insulated from each other by insulator blocks 12 of the same diameter. Electrical conductors, not shown, are connected to the respective contacts 11.
  • the pin can be constructed in any conventional manner.
  • the pin may comprise a central rod supporting the contacts and the insulator blocks, and means such as coupling pins to hold the contacts and blocks in a proper angular position.
  • a piece 16 including a part 16a having the same diameter as the insulator blocks 12 and extending in a "nose" 27 decreasing in diameter towards the front, with a maximum diameter smaller than that of part 16a.
  • a peripheral groove 29 formed on the nose, the role of which will be explained below.
  • a radial opening 30 goes through the nose at the level of the groove 29, and connects with an axial hole 31 which outlets at the forward end of the nose.
  • the female connector is represented in figures 2A, 2B and 2C, with an overlap between the figures to facilitate understanding.
  • the female connector has a tubular housing 40 extending throughout its length. Inside this housing 40 are placed in succession from front to back, a retainer 41, a series of annular insulator blocks 42, an intermediate bulkhead 43 (figure 2A), a thin tube 44 (figures 2A, 2B and 2C) attached to the bulkhead 43 by a bayonet connection 44a, a rear bulkhead 45 fitted onto the tube 44, a spacer 46 and a connector piece 47 (figure 2C).
  • the assembly comprising these parts abuts against an internal shoulder 48 formed at the rear end of the housing 40 (figure 2C) and is held by a nut 49 screwed onto the forward end 50 of the housing 40.
  • the portion represented in figure 2A which is intended to accommodate the pin 10 of the male connector comprises in particular retainer 41, insulator blocks 42 and the intermediate bulkhead 43.
  • the insulator blocks made of insulating material, have stepped ends 55 so that two adjacent insulator blocks present complementary parts which fit one another.
  • through-holes 56 for the passage of the conductors are formed parallel to the axis of the plug in each insulator block 42.
  • blind holes 57 are formed in each insulator block on each side to accommodate pins for the angular positioning of each insulator block relative to the adjacent insulator block.
  • the contacts 61 comprise an internal cylindrical portion 62 and a central external collar 63 with a shoulder 64.
  • the collar 63 is held between two insulator blocks 42 and has drilled holes in line with the holes 56 and 57 of the insulator block 42, to allow passage of an alignment pin and electrical conductors.
  • the set of internal surfaces of the contacts 61 defines a bore 65 with a diameter slightly larger than the external diameter of the pin 10 of the male connector.
  • the spacing between the contacts 61 defined by the dimensions of the insulator block 42 is identical to the spacing between the contacts 11 of the male connector so as to allow simultaneous connection of the contacts 61 with the corresponding contacts 11.
  • Each contact 61 has on its inner surface a groove in which flexible tabs 66 are mounted.
  • the tabs 66 project slightly into the interior of the bore 65 so as to ensure proper contact with the contacts 11 of the male connector.
  • Each seal 70 includes end parts 71, 72, with an external diameter substantially equal to the inside diameter of the insulator blocks 42, and a central portion 73 with a smaller diameter, which defines an annular space 74 between each seal 70 and the surrounding insulator block.
  • Each of the end parts 71, 72 is held between the inner surface of an insulator block 42 and the outer surface of the cylindrical portion 62 of an adjacent contact 61, with the end surface of the seal abutted against the shoulder 64 of the contact 61.
  • the central portion 73 presents internal corrugations 75, when seen in the axial direction.
  • the inside diameter of part 73, taken at mid-height of the corrugations 75 is substantially identical to the diameter of the bore 65, so that the crest of the corrugations projects towards the inside of the bore 65.
  • the insulator block 42a adjacent to the retainer 41 is connected to the latter by pins fitted in blind holes.
  • the retainer 41 has a rear portion shaped like an insulator block 42 to support, along with the adjacent insulator block 42a, the forwardmost contact 61 and seal 70.
  • the insulator block 42f located at the rear of the stack of insulator blocks is connected to the intermediate bulkhead 43 by pins, and as is shown in the cross-section in figure 5, the bulkhead 43 has openings 58 aligned with the holes 56 in the insulator blocks for the passage of conductors.
  • the middle portion 80 of the retainer 41 has the same inside diameter as the contacts 61. Its forward portion 81 has a larger inside diameter to accommodate a seal 82, held between the middle portion 80 and a washer 83 held by a circlip 84 inserted in a groove in the front portion 81.
  • the seal 82 is made of a flexible piece with a radial wall 85 connecting an external axial wall 86 to an internal wall 87, which is used radially inwardly by a circular resilient ring 88 held by the bent edge of the internal wall 87.
  • the bore 65 is filled with a dielectric liquid such as oil. It is sealed in the unconnected position of the female connector represented in figure 2A, by a shuttle composed in the present embodiment of a telescopic assembly.
  • This assembly comprises a piston 90,theforward end of which forms a sealing member 91 having essentially the same outside diameter as the bore 65, and the rear portion of which is a tube 92 with a slighlty smaller outside diameter, substantially equal to the diameter of the crest of the seals 70.
  • a second piston 95, tubular in shape, is slidable inside tube 92. This second piston accommodates a rod 96, connected by a pin 96a to a third piston 97 with a generally tubular shape, which is slidably mounted in tube 44.
  • a helicoidal spring 98 is mounted between an inside shoulder 99 formed on a tube 99a slidably mounted inside tube 44 and a collar 100 forming the front end of the third piston 97.
  • the spring 98 acts to urge the piston 97 forward into contact with the rear face of the intermediate bulkhead 43.
  • Another spring 101 is mounted around the front portion 102 of the rod 96, which portion has a diameter smaller than the rest of the rod 96, between a thrust surface 103 at the front end of the second piston 95 and a bearing surface 104 joining the front portion 102 to the other part of the rod 96.
  • Spring 101 acts to urge the second piston 95 forward.
  • the front end of the second piston 95 has an axial opening 106 for fluid communication.
  • the third piston 97 has on its external surface a series of longitudinal notches 105. These notches are in communication with notches 106 formed inside the piston 97, which outlet in the space defined between the rod 96 and the collar 100.
  • the bore 65 is thus connected to the space located behind the shuttle.
  • the sealing member 91 presents a transverse wall 110 which closes the bore 65. Near its forward end, the sealing member 91 has an internal peripheral groove 111 in which is lodged a flexible C-ring 112, represented on the detailed view in figure 3.
  • the ring 112 is shaped to engage the groove 29 provided at the end of the male connector during a connection, so as to couple the male connector to the sealing member 91 during the movement of the pin 10 inside the bore 65 of the female connector.
  • the part 92 of the first piston 90 has diametrically opposed lateral notches 114 along a good portion of its length, in which a pin 115 attached to thefront ofthe second piston 95, is engaged. In the position shown in figure 2A, the pin 115 abuts against the rear end wall of the notches 114, which holds the first piston 90 in the position indicated and prevents the sealing member 91 from moving forward from its sealing position.
  • a piston 120 which divides in a fluid-tight manner the inner spaces of the female connector, into two chambers 121 and 122.
  • Chamber 121 receives the piston 97 and the tube 99a and is located in the extension of the bore 65; the fluid communication between chamber 121 and the bore 65 is, as indicated above, ensured by the notches 105 and 106 of the piston 97.
  • Anothertube 123 similar to tube 99a, equipped like the latter with an internal shoulder is slidably mounted inside tube 44.
  • a spring 124 is mounted between the internal shoulders of the two tubes 99a and 123, and another spring 125 is placed between the piston 120 and the internal shoulder of tube 123.
  • a similar arrangement is provided in chamber 122 behind the piston 120, where a tube 127 similar to tube 123 is slidably mounted.
  • a spring 128 resting on the inner shoulder of tube 127 acts on the piston 120, and a spring 129 acting on the inner shoulder of tube 127 rests on a stepped washer 130 welded inside the tube 44 near its rear end.
  • the housing 40 has an opening 135 at the level of the bulkhead 45, and the latter, represented in cross-section in figure 7, has a lateral opening 136 opposite the opening 135 and an axial bore 137 in communication with opening 136, which in turn connects the chamber 122 to the outside.
  • the chamber 122 thus serves as a pressure compensation bore, with the piston 120 transmitting the pressure of the external fluid to the oil present in chamber 121 and in bore 65.
  • the pressure in chamber 121 is in fact greater than the pressure of the external fluid due to the action of the springs 128 and 129 on the piston 120.
  • This pressure difference acts on the sealing member 91 to keep it in the sealing position shown in figure 2A.
  • a pressure differential of the order of 2 bars or more, for example 2.5 bars, is sufficient.
  • the springs 128 and 129 are much stronger than springs 124 and 125 placed on the opposite side of the piston 120.
  • the piston 120 has a relief valve 140 which acts to limit the pressure in the chamber 121 to a given value, e.g. between 7 and 10 bars.
  • the rear bulkhead 45 has holes 141 for the passage of the conductors, not shown, connecting the contacts 61 to the electrical feedthroughs 142 mounted in the connection head 47.
  • the connection with the electrical feedthroughs 142 occurs inside the inner space of spacer 46.
  • the passage of conductors from the holes 141 is supplied by the annular space 145 between the tube 44 and the housing 40, and by the spaces defined between the flats 146, better seen in Figure 5, formed on the periphery of the intermediate bulkhead 43, and the housing 40.
  • the holes 58 formed in the front portion of the bulkhead 43 outlet into the spaces 146.
  • the insulator blocks 42 have flats 150 on their periphery, and radially oriented openings 151, which connect for fluid communication the inside and outside of each insulator block 42.
  • the bulkhead 43 has in its forward portion flats 152 aligned with the flats 150 of the insulator blocks 42, and a radial opening 153 (figure 2A) for fluid communication between the inside of the bulkhead 43 and the space defined between the flats 146 and the housing 40.
  • This arrangement provides communication of the chamber 121, the bore 65 which accommodates the shuttle, and the inside of tube 44, with the annular space defined between the tube 44 and the housing 40, the holes 58 and 56 for passage of conductors, the annular spaces 74 provided between the seals 70 and the respective insulator blocks 42, and in the rear portion, with openings 141 and the inner space of the spacer 46.
  • Tightness is ensured by the seal 82 in the front of the bore 65 and by the O-ring 160 mounted on the outside of the retainer 41, by the O-ring 161 mounted on the compensation piston 120, by the O-ring 162 mounted on the front end of the rear bulkhead 45 to ensure a fluid-tight connection with the tube 44, by the seals 163 mounted on the head 45 to separate the outlet passages of the bulkhead 45 from the space surrounding the tube 44 and from the openings 141, and by the connector head 47.
  • Figure 8 illustrates, in a non-limiting manner, an example of utilization and a suitable technique for bringing into engagement the male connector and the female connector in a highly deviated borehole.
  • a suitable technique for bringing into engagement the male connector and the female connector in a highly deviated borehole.
  • Such a technique is described in copending patent application No. 460,340 filed January 24, 1983, assigned to the assignee of the present application, and which is incorporated herein by reference.
  • the female connector is shown as reference numeral 200 in figure 8, the only portion shown being its forward end.
  • the female connector is connected to a logging tool 201 releasably secured at the bottom end of a drill pipe 202.
  • the female connector is mounted inside the bottom end of a stinger tubing 203 disposed inside the drill pipe 202 and secured to the logging tool 201.
  • the male connector 205 is suspended from the transmission cable 206 which it is intended to connect to the logging tool 201.
  • a dual locomotive device including an outer locomotive 207 and an inner locomotive 208 is used to pump down the male connector into engagement with the female connector 200.
  • the two locomotives form a unit with the male connector, which unit is pumped down through the drill pipe by the action of the outer locomotive 207.
  • the male connector can be attached to the logging tool and the female connector suspended from the cable. The following description would remain true except that the movable part, connected to the locomotive, would be the female connector and not the male connector.
  • the continuing pumping brings about the separation of the locomotives.
  • the inner locomotive together with the male connector is pumped down further through the stinger tubing.
  • the stinger tubing 203 has an inwardly projecting portion 209 forming on one side an abutment surface engaged by the female connector and on the other side an abutment surface intended for engagement by the male connector and thus defining the final connection position of the male connector.
  • other means could be used to define the final position of the male connector, for instance there could be provided abutment surfaces respectively on the male and the female connector, which surfaces would engage each other directly.
  • the nose 27 of the pin enters the opening of the sealing member 91 until the shoulder 28 at the front of the pin engages the annular end surface of the sealing member 91. Just before the contact occurs, the snap ring 112 engages in the groove 29 formed on the nose of the pin 10. As the nose 27 moves into the sealing member, the fluid, i.e. the drilling mud in the above described situation, present in the cavity of the sealing member is expelled through the axial hole 31 and the radial hole 30.
  • the fluid i.e. the drilling mud in the above described situation
  • a logging operation can be carried out, in accordance with the technique described in U.S. Patent 4,349,072 or the above-mentioned patent application.
  • the logging tool 201 is released and the stinger tubing together with the logging tool is pumped out of the drill pipe, until the upper end of the stinger tubing engages a stop on the drill pipe. Then the ensemble is returned to its initial position inside the drill pipe by pulling on the transmission cable, and the logging measurements are produced during that return motion.
  • the male connector is withdrawn from the bore 65 by pulling on the cable.
  • the oil pressure in chamber 121 gradually decreases.
  • the sealing member 91 is forced to follow the male connector because of the pressure differential and of their mutual coupling created by the engagement of the snap ring 112 in the groove 29. This eliminates any risk of a gap between them during withdrawal. If such a gap was allowed to occur, the resulting free space would be occupied by the oil and thus a certain quantity of oil would escape when the male connector is fully withdrawn.
  • the assembly of the female connector is simplified.
  • the rear portion is also pre-assembled, i.e. essentially the tube 44 and the elements it accommodates, the washer 130 secured to the tube serving as a retainer against the springs.
  • the telescopic shuttle is inserted in the bore 65 defined by the front portion, and then the tube 44 is attached to the bulkhead 43 by means of the bayonet connection 44a.
  • the electrical conductors can be taped or otherwise attached to the outer surface of the tube 44.
  • a cylindrical fill pin with the same shape and size as the pin 10 of the male connector and which has an axial passage outletting to its forward end, is used to fill the chamber 121.
  • This pin is inserted in the female connector to push the shuttle and the piston 120 back into their respective connection position.
  • the axial passage is connected to a vacuum pump to evacuate the air from the female connector, then to an oil pump.
  • the oil is pumped into the female connector until the pressure reaches the set point of relief valve 140. Pumping is then stopped and the fill pin is removed.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (14)

1. Dispositif connecteur pour établir la connexion de multiples contacts électriques lorsque le dispositif se trouve dans un milieu fluide comprenant:
un connecteur mâle muni d'une fiche cylindrique (10) présentant de multiples éléments de contact (11) espacés axialement;
un connecteur femelle, comprenant une enveloppe tubulaire (40), de multiples contacts annulaires (61) espacés axialement, fixés à l'enveloppe et formant un alésage (65) dans lequel la fiche du connecteur mâle peut être insérée d'une région antérieure à une région postérieure de l'alésage, une pièce d'étanchement (91) pour empêcher le fluide extérieur de pénétrer dans l'alésage, et des moyens pour délimiter un première chambre (121) s'étendant vers la région postérieure dudit alésage, ladite chambre étant emplie d'une substance protectrice; caractérisé par le fait que le connecteur femelle comprend en outre:
de multiples joints étanches (70) agencés en alternance avec les contacts annulaires (61) et présentant, chacun, une partie centrale flexible (73) entourée par un espace libre (74) en communication avec ladite chambre, la substance protectrice dont ladite chambre est emplie étant un liquide diélectrique; et
des moyens (90, 95) pour faire monter la pression du liquide, dans la chambre (121), en réaction à l'insertion de la fiche (10), de sorte que la partie flexible des joints étanches (70) est appliquée radialement contre la fiche, avec une force accrue, lors de l'insertion de ladite fiche.
2. Dispositif connecteur selon la revendication 1, dans lequel la partie flexible (73) de chaque joint étanche (70) comporte des ondulations dont le diamètre de crête interne est plus petit que le diamètre intérieur des contacts annulaires (61).
3. Dispositif connecteur selon la revendication 1, présentant de multiples blocs isolants annulaires (42) fixés en juxtaposition à l'intérieur de l'enveloppe (40), chaque paire de blocs isolants adjacents comportant des moyens pour supporter un contact annulaire (61), les blocs isolants étant munis de passages de communication ménagés sur la surface extérieure, lesdits passages étant reliés, d'une part, auxdits espaces (74) entourant les joints étanches (70) et, d'autre part, à ladite chambre (121).
4. Dispositif connecteur selon la revendication 3, dans lequel lesdits moyens délimitant la première chambre comprennent:
une cloison séparatrice intermediaire (43), dont une première extrémité est reliée au bloc isolant (42f) situé le plus à l'arrière,
un tube (44) logé à l'intérieur de l'enveloppe (40), coaxialement à cette dernière, et présentant une partie antérieure fixée à une seconde extrémité de la cloison séparatrice intermédiaire (43), et
un piston d'équilibrage (120) pouvant coulisser dans ce tube, ledit piston d'équilibrage délimitant, associativement à une partie postérieure du tube, une seconde chambre (122) en communication avec l'extérieur, et des moyens élastiques (128, 129) étant prévus pour solliciter le piston (120) en direction de la cloison séparatrice intermédiaire (43).
5. Dispositif connecteur selon la revendication 4, présentant une soupape de détente (140) montée sur le piston d'équilibrage (120).
6. Dispositif connecteur selon la revendication 4, dans lequel l'enveloppe (40) et le tube (44) délimitent, conjointement, un espace annulaire (145) en communication avec ladite première chambre (121) du tube, et les blocs isolants (42) et la cloison séparatrice intermédiaire (43) comportent des passages orientés longitudinalement, en communication avec ledit espace annulaire (145), afin de recevoir des conducteurs respectivement raccordés aux contacts annulaires (61).
7. Dispositif connecteur selon la revendication 1, dans lequel le connecteur femelle comporte un ensemble télescopique à course alternative, qui comprend:
un premier piston (90) pouvant coulisser dans la région antérieure dudit alésage (65), et formant ladite pièce d'étanchement (91), et
d'autres moyens (95, 97) formant piston, logés à l'intérieur de la région postérieure dudit alésage (65) et sollicités élastiquement en direction de la région antérieure de cet alésage, vers une position de butée, le premier piston (90) étant mobile d'une course limitée par rapport auxdits autres moyens (95, 97) formant pistons.
8. Dispositif connecteur selon la revendication 7, dans lequel lesdits moyens (95, 97) formant pistons définissent la séparation dudit alésage (65) et de ladite première chambre (121), et présentent des moyens de passage (105) pour établir une communication par fluide entre l'alésage et la première chambre.
9. Dispositif connecteur pour établir la connexion de multiples contacts électriques lorsque le dispositif se trouve dans un milieu fluide, comprenant:
un connecteur mâle muni d'une fiche cylindrique (10) présentant une partie extrême (16);
un connecteur femelle, doté d'un alésage (65) dans lequel la fiche peut être insérée d'une région antérieure à une région postérieure de cet alésage, ledit alésage étant empli d'un liquide diélectrique lorsque le connecteur mâle n'est pas inséré, ledit connecteur femelle comprenant une pièce d'étanchement (91) pouvant coulisser dans l'alésage, d'une position antérieure d'étanchéité à une position postérieure, et des moyens pour solliciter la pièce d'étanchement vers la position d'étanchéité; la partie extrême (16) de la fiche (10) étant conçue pour s'appliquer contre la pièce d'étanchement (91), afin de déplacer ladite pièce d'étanchement de la position antérieure à la position postérieure; caractérisé par le fait que:
ladite pièce d'étanchement (91) et la partie extrême (16) de ladite fiche comportent des moyens de verrouillage destinés à provoquer, suite à leur venue en prise, un accouplement positif entre la fiche et la pièce d'étanchement en vue de déplacer ladite pièce d'étanchement, de la position postérieure à la position antérieure, lorsque la fiche est extraite dudit alésage.
10. Dispositif connecteur selon la revendication 9, dans lequel la pièce d'étanchement (91) présente une cavité (111) et un circlip (112) logé dans ladite cavité, et la partie extrême (16) de la fiche comporte une gorge (29) dans laquelle ledit circlip peut s'emboîter pour assurer l'accouplement positif.
11. Dispositif connecteur selon la revendication 10, dans lequel la partie extrême (16) de la fiche comprend une région (16a) présentant la même diamètre que la fiche, et un embout (27) prolongeant ladite région, avec une surface radiale (28) solidarisant ladite région et ledit embout, et ladite gorge (29) est pratiquée sur l'embout, au voisinage de ladite surface radiale (28).
12. Dispositif connecteur selon la revendication 10, dans lequel l'embout (27) comprend un trou radial (30) débouchant dans ladite gorge (29), ainsi qu'un trou axial (31) relié à ce trou radial et débouchant à l'extrémité de l'embout (27).
13. Dispositif connecteur selon la revendication 9, dans lequel le conducteur femelle comporte un ensemble télescopique à course alternative, ledit ensemble à course alternative comprenant:
un premier piston tubulaire (90), pouvant coulisser dans la région antérieure de l'alésage (65) et formant la pièce d'étanchement (91),
un deuxième piston tubulaire (95), pénétrant dans le premier pistion (90) et sollicité élastiquement en direction de la région antérieure de l'alésage (65), vers une position de butée, le premier piston (90) étant mobile, par rapport au deuxième piston (95), entre ladite position antérieure d'étanchéité et ladite position postérieure de butée.
14. Dispositif connecteur selon la revendication 13, présentant un troisième piston (97) logé à l'intérieur du connecteur femelle , et sollicité élastiquement vers une position antérieure de butée, ainsi qu'une tige axiale (96) reliée à ce troisième piston et pénétrant dans le deuxième piston (95), du côté opposé au premier piston (90), le deuxième piston (95) étant mobile, par rapport à ladite tige (96), entre une position antérieure de butée et une position postérieure de butée.
EP84402669A 1983-12-27 1984-12-20 Connecteur électrique utilisé dans un milieu liquide Expired EP0147315B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US56579583A 1983-12-27 1983-12-27
US565795 1983-12-27
US06/565,794 US4589717A (en) 1983-12-27 1983-12-27 Repeatedly operable electrical wet connector
US565794 1983-12-27

Publications (3)

Publication Number Publication Date
EP0147315A2 EP0147315A2 (fr) 1985-07-03
EP0147315A3 EP0147315A3 (en) 1987-04-01
EP0147315B1 true EP0147315B1 (fr) 1990-09-19

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EP84402669A Expired EP0147315B1 (fr) 1983-12-27 1984-12-20 Connecteur électrique utilisé dans un milieu liquide

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EP (1) EP0147315B1 (fr)
DE (1) DE3483251D1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104752890A (zh) * 2015-02-28 2015-07-01 美钻能源科技(上海)有限公司 一种rov操作的水下湿式电连接器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142770A (en) * 1977-12-27 1979-03-06 Exxon Production Research Company Subsea electrical connector
FR2484717A1 (fr) * 1980-02-22 1981-12-18 Inst Francais Du Petrole Connecteur enfichable dans un milieu fluide

Also Published As

Publication number Publication date
DE3483251D1 (de) 1990-10-25
EP0147315A3 (en) 1987-04-01
EP0147315A2 (fr) 1985-07-03

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