EP0112258A2 - Elektrische Sicherheitssteckdose insbesondere für explosive Atmosphäre - Google Patents

Elektrische Sicherheitssteckdose insbesondere für explosive Atmosphäre Download PDF

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Publication number
EP0112258A2
EP0112258A2 EP83402483A EP83402483A EP0112258A2 EP 0112258 A2 EP0112258 A2 EP 0112258A2 EP 83402483 A EP83402483 A EP 83402483A EP 83402483 A EP83402483 A EP 83402483A EP 0112258 A2 EP0112258 A2 EP 0112258A2
Authority
EP
European Patent Office
Prior art keywords
contact
piston
explosion
base according
base
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.)
Granted
Application number
EP83402483A
Other languages
English (en)
French (fr)
Other versions
EP0112258B1 (de
EP0112258A3 (en
Inventor
Pierre Jonval
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.)
Legrand SA
Original Assignee
Legrand SA
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 FR828221430A external-priority patent/FR2538176B1/fr
Priority claimed from FR8309807A external-priority patent/FR2549304B2/fr
Application filed by Legrand SA filed Critical Legrand SA
Priority to AT83402483T priority Critical patent/ATE27386T1/de
Publication of EP0112258A2 publication Critical patent/EP0112258A2/de
Publication of EP0112258A3 publication Critical patent/EP0112258A3/fr
Application granted granted Critical
Publication of EP0112258B1 publication Critical patent/EP0112258B1/de
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
    • H01R13/527—Flameproof cases
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/14—Resiliently-mounted rigid sockets

Definitions

  • the present invention relates generally to so-called safety sockets, and more particularly relates to those of these sockets which are intended to be used in an explosive atmosphere.
  • the sockets, or, more generally, the connectors intended to connect electrically, and at will, two cables comprise, on the one hand, a female part, or base, equipped , in addition to a possible earth cell, at least two phase or neutral cells each respectively electrically connected to the conductors of a first of these cables, and, on the other hand, a male part, or plug, fitted with pins , which, each respectively connected to the conductors of the second of these, are intended to be each respectively engaged in such cells, for the desired electrical connection.
  • a bayonet mount is provided between the plug and the base, and, more often than not, it is also provided therein, for example in a separate compartment, a switch, which, arranged upstream cells, systematically de-energizes them, so as to allow the extraction of the plug when the cells are thus de-energized, and, conversely, to prevent their introduction when these cells are under tension.
  • a key is provided between the plug and the base, which controls the mechanical locking of this plug on this base, and which ensures, by acting simultaneously on a switch located in a compartment separate from the latter, establishing the current upstream of the cells, or cutting it off.
  • the present invention generally relates to a provision making it possible to avoid these drawbacks, and in particular allowing an automatic de-energization of the cells of the base during the separation of the plug, without the use of any switch or of any cover, and without mechanical locking device.
  • a socket for a safety socket outlet in particular for an explosive atmosphere, of the type comprising, in a body of insulating material, for cooperation with the pins of a socket outlet plug, in addition to a possible earth cell, at least two phase or neutral cells, this base being generally characterized in that it comprises at least as many explosion-proof safety chambers as tinctes that there are phase or neutral cells, said phase or neutral cells are each individually arranged in said explosion-proof safety chambers.
  • an explosion-proof safety chamber corresponding to such a spindle-cell assembly are located, on the one hand, on the bottom of this safety chamber, a contact member, and, on the other hand, mounted axially movable in said chamber, a contact piston, which divides the latter into two portions, and which, at the front, on the side of its outlet, has the associated cell.
  • the contact member thus implemented in an explosion-proof safety chamber is itself a pin, called below, for simple convenience, base pin, to distinguish it from the pins of the plug, this pin of base protrudes axially from the bottom of the explosion-proof safety chamber which it equips, and the corresponding contact piston has, at the rear, on the side of said bottom, a cell, by which it is intended to cooperate with said pin of basement.
  • this contact member is a stud
  • this stud protrudes axially from the bottom of the explosion-proof safety chamber which it equips
  • the corresponding contact piston is a telescopic piston, that is to say a piston formed of at least two piston elements mounted axially movable with respect to one another against elastic spacing means urging them in axially opposite directions, that of these piston elements which is at the front having the associated cell while the one at the rear is intended to cooperate with said pad, by simple pressing against it.
  • the stroke of the contact piston in the explosion-proof safety chamber is made sufficient so that, when it is at the end of the front stroke, on the outlet side of said chamber, it is free from any contact with the associated contact body.
  • the withdrawal of a plug from a base according to the invention advantageously involves a double disconnection, namely, on the one hand, a disconnection between the contact pistons and the contact members present in the explosion-proof safety chambers corresponding, and, on the other hand, a disconnection of the pins of the plug relative to the contact pistons.
  • the base is itself advantageously simplified and its size is reduced.
  • the pins of the plug can be simple pins, established according to a usual layout, and therefore respecting the interchangeability ratings provided for by the official standards in matter.
  • the safety socket outlet concerned by the present invention usually comprises a female part 10, or base, and a male part 11, or plug.
  • the base 10 is carried by a housing 12, called “increased safety", by means of which it can be attached to any support.
  • the base 10 for the implantation of the base 10, it comprises a well 13, that the base 10 is suitably secured to the bottom 14 of this well 13 by resting on this bottom 14 by a shoulder 15 or a flange 15 'that it has transversely for this purpose, that it crosses the central opening 16 of said bottom 14, that it provides between itself and the side wall of said well 13 an annular volume suitable for the insertion of the skirt 18 of the plug 11, that at the bottom of said well 13 is disposed a seal 19, for support of the edge of said skirt 18 of the plug 11, and that, on the outer wall of well 13, is articulated a cover 20 suitable for sealing it in the absence of such a plug 11.
  • the cover 20 which is urged in the direction of its closed position 20 by a spring 71, is intended to be applied to the outlet of the well 13, and , for the desired seal, it bears annularly, in a groove 77, a seal 79.
  • the side wall of the well 13 forms, locally, a longitudinal groove 21 suitable for constituting a key, the skirt 18 of the plug 11 comprising locally, in correspondence , over at least part of its height from its edge, a bead 22 complementary to such a groove.
  • skirt 18 has transversely projecting a flange 23, for bearing on the edge of the well 13 of the housing 12, and that, internally, it comprises, projecting from a base not visible in the figures, in addition to a possible earth pin 25, as shown, at least two phase or neutral pins 26.
  • the base 10 forms a body of insulating material, and, for cooperation with the pins of the plug 11, it comprises, in addition to a possible earth cell 28, as shown, at least two phase cells or neutral 29.
  • the base 10 comprises at least as many separate explosion-proof safety chambers 30 as there are phase or neutral cells 29, said phase or neutral cells 29 being each individually arranged in said chambers. explosion proof safety 30.
  • the number of explosion-proof safety chambers 30 used is equal to that of the phase or neutral cells 29, no explosion-proof safety chamber being provided for the cell of earth 28.
  • each of the explosion-proof safety chambers 30 is individually closed, in the embodiments more particularly shown in FIGS. 1 to 7, and the same is true for that shown in FIG. 9 , by a plug of insulating material 63, which forms the bottom 32 of such an explosion-proof safety chamber 30.
  • the set of plugs 63 thus present are jointly capped, externally, by a cover 64, which is common to them, and which, externally, itself comprises as much cells 66 that there are phase or neutral cells 29, with, in each of these, a contact piece 67.
  • a stirrup 68 suitable for clamping this electrical conductor against said contact piece 67 under the stress of a screw 69.
  • the base 10 On the external side, or front, the base 10 comprises, for each explosion-proof safety chamber 30, a collar 34, which extends transversely in such an explosion-proof safety chamber 30, and the opening 35 of which defines the outlet to the outside of it.
  • the axial length L ′ of the collar 34 which also defines a line of flight, is at least equal to the axial length L specified above, for compliance with the standards in the matter, and is for example equal to this one.
  • a security chamber 30 constitutes an explosion-proof security chamber.
  • an explosion-proof safety chamber 30 there are arranged, according to the invention, on the one hand, on the bottom 32 of this explosion-proof safety chamber 30, a contact member, and, on the other hand, mounted movable axially in the latter, a contact piston 40, which divides said explosion-proof safety chamber 30 into two portions, and which, at the front, on the side of the outlet 35 thereof, presents the phase or neutral 29 associated.
  • the contact member present on the bottom 32 of an explosion-proof safety chamber 30 is a pin 37, called below for convenience, base pin.
  • this base pin 37 which is metallic, projects axially from the bottom 32 of the explosion-proof safety chamber 30 which it equips, and, passing through the corresponding plug 63, by means of an axial bore 43 of the latter, the axial length L ′′, for the same reasons as above, is preferably at least equal to the axial length L specified above, it is in one piece with the associated contact piece 67.
  • the contact piston 40 has, at the rear, on the side of the bottom 32 of the explosion-proof safety chamber 30 in which it is slidably mounted, in the embodiments shown on FIGS. 1 to 8, a cell 47, or rear cell, by which it is adapted to cooperate with said base pin 37.
  • such a contact piston 40 which is metallic, therefore presents thus, in the embodiments shown in FIGS. 1 to 8, each arranged back to back respectively on either side of a common central base 48 by which it is slidably engaged in the explosion-proof safety chamber 30 which it equips, on the one hand, in the direction of the outlet 35 thereof, the corresponding phase or neutral cell 29, and, on the other hand part, in the direction of its bottom 32, the cell 47.
  • At least one of the cells 29, 47 of each of the contact pistons 40 has internally, at a distance from its bottom, a transverse shoulder 70 capable of limiting its engagement on the plug pin or corresponding base; preferably, and as shown, this is the case for both of them.
  • each of these cells 29, 47 is circularly fragmented by slots 50, so as to be able to have a certain elasticity radially, and thus elastically tighten the corresponding pin 26, 37 when it is engaged with it.
  • each of the cells 29, 47 is elastically subjected to a radial prestress with respect to the corresponding pin 26, 37.
  • the cells 29, 47 have, overall, the same axial length, and the same constitution.
  • the stroke of the contact piston 40 in the explosion-proof safety chamber 30 which it equips is made sufficient so that, when it is at the end of the forward stroke, on the side of the outlet 35 of said explosion-proof safety chamber 30, as shown in Figure 3, it has no contact with the base pin 37 forming the associated contact member.
  • a distance D ′ which, corresponding to a distance in the air after drawing out, is made sufficient to meet the standards in the matter.
  • disengageable snap-on means capable of strengthening its position when it is at the end of forward race.
  • these disengageable snap-fastening means comprise, on the one hand, an elastic ring 53, for example an elastic ring opened by a slot, which is engaged in a groove 54 annularly provided for this purpose at the periphery external of the contact piston 40, in the central zone of the central base 48 thereof, and, on the other hand, a groove 55, which, in a complementary manner, is also annularly provided for this purpose on the internal wall of the corresponding explosion-proof safety chamber 30, for engagement of said elastic ring 53.
  • an elastic ring 53 for example an elastic ring opened by a slot, which is engaged in a groove 54 annularly provided for this purpose at the periphery external of the contact piston 40, in the central zone of the central base 48 thereof, and, on the other hand, a groove 55, which, in a complementary manner, is also annularly provided for this purpose on the internal wall of the corresponding explosion-proof safety chamber 30, for engagement of said elastic ring 53.
  • the distance 1 axially separating each of the sides of the groove 54 of the contact piston 40 from the corresponding free surface of the central base 48 thereof is at least equal to half of the axial length L specified above. .
  • each of the contact pistons 40 is subjected to elastic return means which urge it permanently towards its front end position, that is to say that is to say towards the outlet 35 of the explosion-proof safety chamber 30 in which it is movably mounted.
  • these elastic return means are constituted by a metal spring 60, of the coil spring type, and said spring 60 acts by means of a spacer made of insulating material 61 on the contact piston. 40 with which it is thus associated.
  • such a spacer 61 forms a bushing which, bearing on the central base 48 of the contact piston 40, extends annularly around the rear cell 47 thereof, extending, in practice, and as shown, beyond the free edge of this rear cell 47.
  • the spring 60 which extends annularly around the corresponding base pin 37, is itself supported on the plug 63 forming the bottom 32 of the explosion-proof safety chamber 30 concerned.
  • a latch 73 which is capable of ensuring by a notch 75 the maintenance in the closed position of the cover 20, and which is itself biased towards the corresponding position by a spring 76.
  • the latch 73 has, beyond the first, a second notch 80, by which it is adapted, as will appear below, to retain, at least temporarily, in the intermediate position, the plug 11 , when extracting it.
  • this second notch 80 is formed on an extension 82 of the latch 73, and it is preceded by an oblique engagement chamfer 83.
  • the hinge pins of the cover 20 and the latch 73 are arranged in diametrically opposite positions, one relative to the other with respect to the well 13, and, for cooperation with the notch 75 of the latch 73, the cover 20 has, radially projecting at its periphery, a spoiler 85.
  • the skirt 18 of the plug 11 has a spoiler 87 radially projecting from the flange 23 which it usually comprises for its support on the outlet of the well 13 of the base 10.
  • the cover 20 is opened by momentary spacing of the latch 73, the plug 11 is presented in line with the well 13, FIG. 5A, and, after temporary retraction of the latch 73 by action on the engagement chamfer 83 of that here, first by the edge of its skirt 18, FIG. 5A, then by the flange 23 thereof, it is engaged in this well 13, with penetration of its pins 26 into the phase or neutral cells 29 contact pistons 40, FIG. 5B, until they stop against the transverse shoulder 70 thereof, and penetration of its earth pin 25 into the earth socket 28.
  • the front cell 29 of a contact piston 40 is less than the sum of the axial force required to disengage the latching means that constitutes the elastic ring 53 that carries such a contact piston, d on the one hand, and of the axial force necessary to overcome the effects of the associated spring 60, on the other hand; it is therefore this front cell 29 which elastically yields the first during such engagement.
  • connection of the pins 26 of the plug 11 with the contact pistons 40 according to the invention is advantageously done even when the latter are de-energized.
  • the contact pistons 40 thus being engaged on the one hand with the pins 26 of the plug 11 and on the other hand with the base pins 37, they establish an electrical contact from these pins 26 to these pins 37, as sought.
  • the plug 11 is then locked in the engagement position, by a spoiler 90 which it has for this purpose laterally projecting and with which a spoiler 91 of the cover 20 cooperates in retention.
  • the extraction, or withdrawal, of sheet 11 is also done in two stages.
  • the axial return force of which such a spring 60 is capable is preferably greater than the axial force due to friction, on the internal wall of the explosion-proof safety chamber 30 concerned, of the elastic ring 53 carried by each of the contact pistons 40.
  • the extraction of the plug 11 can be continued, by retracting the latch 73.
  • the corresponding disconnection is advantageously done even when these contact pistons 40 are already de-energized.
  • the latch 73 advantageously requires a split in two stages of this withdrawal, on the one hand, to move said plug 11 from its position to its intermediate position, for which, as stated above, it is already removed, and, on the other hand, to then withdraw it completely.
  • Such a split in two stages of this withdrawal advantageously makes it possible to alleviate the possible consequences of a too rapid withdrawal, which, in particular when the currents to be cut are very inductive, could lead the plug 11 to be inadvertently and dangerously followed outside. by the arc arising from its removal.
  • the contact pistons 40 advantageously remain permanently de-energized in the absence of the plug. 11.
  • the contact pistons 40 are necessarily brought back to the front end-of-travel position, without the risk of being abandoned in an intermediate position, for which they could be in contact with the corresponding base pins 37, and therefore be energized.
  • the internal shoulder 70 which, in the embodiments shown in Figures 1 to 7, and 9, has each of the cells 29, 47 of the contact pistons 40 advantageously allows to minimize the corresponding engagement strokes on the pins 26, 37, while leaving said cells 29, 47 all the desirable length so that they have good elasticity.
  • a polarizing device can be provided, to avoid the installation of a plug 11 which does not comply with the desired safety standards.
  • no spring biases the contact pistons 40 in the direction of their front end-of-travel position.
  • each of the contact pistons 40 is then in abutment against the internal surface 39 of the collar 34 forming the outlet 35 of the corresponding explosion-proof safety chamber 30.
  • the contact pistons 40 in turn engage, by their rear cell 47, on the base pins 37.
  • the corresponding rear end-of-travel position of the contact pistons 40 is defined by the bottom 32 of the explosion-proof safety chamber 30 in which they are mounted to be movable.
  • the plug 63 thereof forms one body with the associated cover 64, this cover 64 directly presenting the bore 43 necessary for passing through an extension 42 of the base pin 37, associated , around an annular end piece 33 suitable for its local fitting into the explosion-proof safety chamber 30 concerned, and said extension 42 of said base pin 37 is tubular, for crimping onto the conductive core of an electrical conductor.
  • the contact member present on the bottom 32 of each of the explosion-proof safety chambers 30 is a stud 97, which, like the previous pin 37, protrudes from said bottom 32, and the contact piston 40 mounted mobile according to the invention in such an explosion-proof safety chamber 30 is a telescopic piston, that is to say a piston formed by at least two piston elements 98, 99 mounted axially mobile l ' one over the other.
  • the piston element 98 which is the one placed at the front, on the side of the outlet 35 of the corresponding explosion-proof safety chamber 30, comprises the phase or neutral cell 29 associated, with, as previously, slots 50 and a hooping ring 51, while the piston element 99, which is therefore the one disposed at the rear, on the side opposite to said outlet 35, is intended to cooperate with the stud 97, by simple pressing against it.
  • the piston element 98 forms at the rear, a cell 102, in which the piston element 99 is engaged, and the outlet of which is bordered by a transverse return 103 in the direction of its axis. .
  • the piston element 99 itself forms a cell 104, by which it is engaged in that 102 of the piston element 98, and the side wall of which is circularly fragmented by slots 105, with, externally, projecting from the end of the latter, in the direction opposite to its axis, a transverse return 106 suitable for coming into engagement with that 103 of said piston element 98, for its retention with respect to the latter.
  • the spring 100 is housed in the volume defined by these two cells 102, 104, bearing on the bottom of each of these.
  • the piston element 99 carries a contact grain 108, and, similarly, for cooperation with it, said stud 97 carries a contact grain 109.
  • the contact grains 108, 109 are preferably made of a metal or alloy chosen for its good conductivity.
  • the stud 97 is quite similar, in terms of its length, to the previous pin 37.
  • FIG. 9 is of the same type as that shown in FIGS. 1 to 5, with, in particular, individual plug 63, spring 60 and spacer 61.
  • the simple support contact developed between contact piston 40 and pad 97 in this embodiment makes it possible to avoid any seizure between these members when current and / or voltage are high, which is favorable the breaking capacity of the assembly.
  • the base pins can, for this purpose, be made of slightly smaller diameter than the plug pins .
  • Such an arrangement advantageously also makes it possible to have symmetrical contact pistons, which simplifies manufacture and assembly.
  • the well in which is placed the barrel comprising the phase or neutral cells of the base can form a part which, distinct from the housing of this base, is suitably attached thereto, for example by screws, by enclosing a flange with sides provided for this purpose radially projecting from this barrel, which makes it possible, in particular, to give this barrel a given angular orientation around its axis, as a function of the envisaged operating voltages, while ensuring axial retention suitable, without other means of attachment.
  • the field of application of the invention is not limited to the case where, in the case of a single-phase installation, two phase cells are used.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP83402483A 1982-12-21 1983-12-20 Elektrische Sicherheitssteckdose insbesondere für explosive Atmosphäre Expired EP0112258B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83402483T ATE27386T1 (de) 1982-12-21 1983-12-20 Elektrische sicherheitssteckdose insbesondere fuer explosive atmosphaere.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR828221430A FR2538176B1 (fr) 1982-12-21 1982-12-21 Socle pour prise de courant de securite, notamment pour atmosphere explosive
FR8221430 1982-12-21
FR8309807A FR2549304B2 (fr) 1983-06-14 1983-06-14 Socle pour prise de courant de securite, notamment pour atmosphere explosive
FR8309807 1983-06-14

Publications (3)

Publication Number Publication Date
EP0112258A2 true EP0112258A2 (de) 1984-06-27
EP0112258A3 EP0112258A3 (en) 1984-08-08
EP0112258B1 EP0112258B1 (de) 1987-05-20

Family

ID=26223200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83402483A Expired EP0112258B1 (de) 1982-12-21 1983-12-20 Elektrische Sicherheitssteckdose insbesondere für explosive Atmosphäre

Country Status (4)

Country Link
US (1) US4659160A (de)
EP (1) EP0112258B1 (de)
DE (1) DE3371727D1 (de)
ES (1) ES8406806A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169459A (en) * 1984-12-18 1986-07-09 Colin Terence Willis Switched lamp socket
EP0261307A2 (de) * 1986-09-26 1988-03-30 R. Stahl Schaltgeräte GmbH Explosionsgeschütztes Modulgehäuse
EP0433003A1 (de) * 1989-12-11 1991-06-19 C M P (UK) Limited Abgeschottete Schnittstellenverbindung in explosionsgefährdeter Umgebung
US6382990B1 (en) 1999-11-19 2002-05-07 Societe D'exploitation Des Procedes Marechal (Sepm) Electric connection base plate in particular for explosible environment and method for making same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772215A (en) * 1987-10-15 1988-09-20 Hubbell Incorporated Electrical connector with enclosed internal switch
US5222899A (en) * 1992-05-08 1993-06-29 Hughes Aircraft Company Electrostatic discharge safety connector for electro-explosive devices
US5880420A (en) * 1997-04-11 1999-03-09 Pass & Seymour, Inc. Switch operator with interlock mechanism
US6659783B2 (en) * 2001-08-01 2003-12-09 Tyco Electronics Corp Electrical connector including variable resistance to reduce arcing
ITMI20041708A1 (it) * 2004-09-07 2004-12-07 Vei Power Distrib S P A Dispositivo interuttore di manovra-sezionatore per cabine elettriche
US9252539B2 (en) 2012-11-02 2016-02-02 Hubbell Incorporated Internally switched female receptacle or connector with plug-latching safety interlock
US9887489B1 (en) 2016-10-19 2018-02-06 Hubbell Incorporated Electrical connector with plug latching assembly
US10950966B2 (en) 2018-10-26 2021-03-16 American Mine Research, Inc. Safety stab technology
CN112821138B (zh) * 2020-12-30 2022-04-22 华为数字能源技术有限公司 电连接器与电气设备
CN113328287B (zh) * 2021-03-22 2023-02-28 合隆防爆电气有限公司 耗能型防爆连接器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB434442A (en) * 1934-03-05 1935-09-02 Walsall Conduits Ltd Improvements in or relating to electric plug and socket couplings or connectors
US2593182A (en) * 1948-04-22 1952-04-15 American Phenolic Corp Monoblock connector
US3982812A (en) * 1973-10-01 1976-09-28 General Electric Company Power cable separable connector having gasket means for restricting the flow of arc-generated gases therefrom
US4192572A (en) * 1973-10-15 1980-03-11 Amerace Corporation Electrical connector apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1301448A (fr) * 1961-07-08 1962-08-17 Expl Des Procedes Marechal D Perfectionnements aux dispositifs de connexions électriques
US4488765A (en) * 1980-06-18 1984-12-18 The United States Of America As Represented By The Secretary Of The Navy Dead-faced electrical connector with electromagnetic vulnerability protection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB434442A (en) * 1934-03-05 1935-09-02 Walsall Conduits Ltd Improvements in or relating to electric plug and socket couplings or connectors
US2593182A (en) * 1948-04-22 1952-04-15 American Phenolic Corp Monoblock connector
US3982812A (en) * 1973-10-01 1976-09-28 General Electric Company Power cable separable connector having gasket means for restricting the flow of arc-generated gases therefrom
US4192572A (en) * 1973-10-15 1980-03-11 Amerace Corporation Electrical connector apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169459A (en) * 1984-12-18 1986-07-09 Colin Terence Willis Switched lamp socket
EP0261307A2 (de) * 1986-09-26 1988-03-30 R. Stahl Schaltgeräte GmbH Explosionsgeschütztes Modulgehäuse
EP0261307A3 (en) * 1986-09-26 1989-10-11 R. Stahl Schaltgerate Gmbh Modular casing protected against explosion
EP0433003A1 (de) * 1989-12-11 1991-06-19 C M P (UK) Limited Abgeschottete Schnittstellenverbindung in explosionsgefährdeter Umgebung
US6382990B1 (en) 1999-11-19 2002-05-07 Societe D'exploitation Des Procedes Marechal (Sepm) Electric connection base plate in particular for explosible environment and method for making same

Also Published As

Publication number Publication date
EP0112258B1 (de) 1987-05-20
ES528284A0 (es) 1984-08-01
EP0112258A3 (en) 1984-08-08
ES8406806A1 (es) 1984-08-01
US4659160A (en) 1987-04-21
DE3371727D1 (en) 1987-06-25

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