EP0151715A2 - Connecteur enfichable protégé contre les explosions muni d'un support de douilles pouvant tourner - Google Patents

Connecteur enfichable protégé contre les explosions muni d'un support de douilles pouvant tourner Download PDF

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Publication number
EP0151715A2
EP0151715A2 EP84114449A EP84114449A EP0151715A2 EP 0151715 A2 EP0151715 A2 EP 0151715A2 EP 84114449 A EP84114449 A EP 84114449A EP 84114449 A EP84114449 A EP 84114449A EP 0151715 A2 EP0151715 A2 EP 0151715A2
Authority
EP
European Patent Office
Prior art keywords
socket carrier
plug
housing
sockets
cam
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
EP84114449A
Other languages
German (de)
English (en)
Other versions
EP0151715B1 (fr
EP0151715A3 (en
Inventor
Helmut Würz
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.)
R Stahl Schaltgeraete GmbH
Original Assignee
R Stahl Schaltgeraete GmbH
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
Application filed by R Stahl Schaltgeraete GmbH filed Critical R Stahl Schaltgeraete GmbH
Publication of EP0151715A2 publication Critical patent/EP0151715A2/fr
Publication of EP0151715A3 publication Critical patent/EP0151715A3/de
Application granted granted Critical
Publication of EP0151715B1 publication Critical patent/EP0151715B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/707—Structural association with built-in electrical component with built-in switch interlocked with contact members or counterpart
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the invention relates to an explosion-proof connector with a socket holder rotatably mounted in a housing, which contains sockets for plug pins of an insertable plug and behind which a switching device is arranged in the housing, via which the sockets can be connected to the terminals located in the housing and which has two sets of switch contacts, one of which is electrically connected to the terminals and the other to the sockets, and with a displaceable locking element triggered by the inserted plug for the socket carrier and a guideway formed in the housing for one on the connector facing end of the plug located guide lug, wherein to actuate the switching device, the fully inserted connector with the socket carrier is rotated by a limited angle of rotation with respect to the axis of rotation of the socket carrier and at least ir switched on the F The guide nose locks the connector from being pulled in the guideway.
  • Such an explosion-proof connector is shown in DE-PS 12 51 404, in which a contact carrier is fixedly arranged in the housing behind the socket carrier and bears slideways on its side facing the socket carrier. On these slideways, each with one through the Contact carrier passing through tab is integrally connected, brushes or grinders, which are resiliently connected to a respective associated seat in the socket carrier.
  • the contact carrier plate There is a switching wheel below the contact carrier plate, which actuates spring-loaded contact bridges that can be moved by tappets.
  • the contact bridges each serve to electrically connect a tab which protrudes from the contact carrier plate to another tab which is fastened to a connecting terminal leading to the outside.
  • the switching wheel is actuated by means of a shaft which protrudes forward through the contact carrier plate and the socket carrier in the direction of the plug to be inserted and which contains a coaxial square inside.
  • a connector with a corresponding centrally arranged square socket is required, which engages in the control shaft after the connector has been inserted.
  • the Buchsenträ g he and the control shaft are rotated, the switching disc inside the switching device releases the movable contact bridges, which then snap due to the spring bias on the tabs forming the switch contacts.
  • Pulling the plug in the connected state is prevented by a bayonet-type connection between the connector and the connector, which is only released again when the plug together with the Buchsenträ g he and the shift shaft is rotated back into the starting position, in which the switching bridges of the switching contacts are lifted off.
  • DE-PS 12 52 778 describes a multi-pole electrical safety plug device that requires fewer contact pairs per current path and that also makes sliding contact.
  • the connector has only spherical connectors instead of the usual female connector receptacles , spring-loaded contacts, which are covered against contact by means of a rotatable disc arranged in front of them.
  • the disk contains bores aligned with the connector pins of the connector and can be rotated with the aid of the connector, the connector pins then coming into contact with the contacts of the connector with their front crowned ends.
  • a bayonet catch holds the connector and the connector together when the connector pins rest with their front ends on the contacts of the connector.
  • inexpensive material suitable for contacts is relatively soft, which further increases the risk of damage to the plug tips.
  • the object of the invention is therefore to provide an explosion-protected connector which has a switching device which can be actuated by rotating the connector and which makes do with one pair of contacts per current path.
  • the explosion-proof connector according to the invention is characterized by the features of the main claim.
  • This arrangement ensures that the switching contacts which make contact with one another perform a sliding movement because they do not move axially towards one another, but are moved laterally relative to one another. This results in adequate cleaning of the contact surfaces.
  • the arrangement becomes structurally simple when the switch contacts electrically connected to the sockets are formed on the end of the sockets facing away from the plug pins and the switch contacts connected to the connection terminals are cushioned in the housing.
  • the switching device contains two cam devices that are spring-biased toward one another in the axial direction of the housing, one of which is secured against rotation the housing is seated and the other is connected in a rotationally fixed manner to the socket carrier, an axially movable cam device being connected to the spring-loaded contacts, such that the cam devices, when the socket carrier is rotated in the direction of the OFF position, point the spring-loaded switch contacts away from the other switch contacts Give movement.
  • cam devices are designed as disks that carry the edges on the other cam devices to protrude, each of which has an inclined surface pointing in the same circumferential direction, which with a corresponding associated inclined surface of the associated approach another cam device cooperates so that when the disks are rotated relative to one another in one direction, the disks move away from one another and when the disks are rotated in the other direction they move toward one another due to the spring preload.
  • the cam devices can have openings through which the two sets; of switching contacts to protrude from one another, each switching contact being supported by a contact flange on the rear of the associated cam device.
  • a locking member which cannot be manipulated from the outside is obtained if the locking member is resiliently seated in the housing in a longitudinally displaceable manner and engages in a recess of the bushing carrier in order to block a rotational movement of the bushing carrier in the advanced state.
  • the locking member is expediently mounted in the housing on the side of the switching device facing away from the socket carrier.
  • the security against unauthorized unlocking is further increased if the sockets for the purpose of unlocking the locking member are longitudinally displaceable with formation of an "Ex gap in the socket carrier, the cam device assigned to the socket carrier being held longitudinally displaceable with respect to the socket carrier, while the locking member is held by the associated one
  • the spring device is held in contact on the side of the other cam device which faces away from the socket carrier, such that when the plug is inserted through the sockets, the two cam devices and the locking member resting thereon can be displaced in order to release the socket carrier .
  • the connector 1 contains a housing 3 with a continuous, substantially cylindrical stepped bore 4 and a hinged cover 6 hinged laterally at 5, with which the front opening of the connector 1 can be closed, for which purpose the hinged cover 6 is spring-biased towards the closed position.
  • a locking member 9 In the through hole 4 sit in the axial direction one behind the other a bottom 7 with terminals 8 inserted therein, a locking member 9, a first cam device 11, a second cam device 12 and a rotatably mounted socket carrier 13, which with the wall of the cylindrical bore 4 in Area of the front end of the connector 1 forms a cylindrical annular gap 14, in which, when the connector 2 is inserted, the cylindrical shield-like extension 15 is inserted, which surrounds the connector pins 16 of the connector 2 located inside.
  • the plug pins 16 are floatingly held in the housing of the plug 2.
  • the base 7 lies with a radially outwardly projecting flange 17 on a rear end face 18 of the housing 3, where it is screwed onto the housing 3 by means of self-tapping screws 19.
  • a cylindrical part 21 of the bottom 7 protrudes into the bore 4 and forms a flat support surface 22 from which a cylindrical extension 23 protrudes axially.
  • the outer diameter of the cylindrical projection 23 is smaller than the diameter of the bore 4 at this point, which creates a cylindrical gap in which there is a metallic sleeve 25.
  • the metallic sleeve 25 is firmly connected to the cylindrical base body 21 by means of a snap connection 26 and extends beyond the cylindrical extension 23 in the direction of the socket carrier 13.
  • the metallic bush 25 contains a multi-thread internal thread 27 into which a External thread 28 of the socket carrier 13 is screwed in.
  • the two threads 27 and 28 together form the pivot bearing for the connector carrier 13 which by means of the two threads 27 and 28 are operatively connected by a predetermined angle with respect to the longitudinal axis of Bohrunq 4 is rotatably (about 36 ° to 60 0).
  • the two threads 27 and 8 delimit an ignition-proof gap for a chamber 29 located behind, in which a switching device 31 of the plug connector 1 is accommodated.
  • the chamber 29 is delimited by the inner end face 22 of the base 7, the cylindrical inner wall of the cylindrical extension 23 and the rear side 32 of the socket carrier 13.
  • the above-mentioned locking member 9 which has approximately the shape shown in Fig. 3 in the three-pole version of the connector 1. It consists of an approximately star-shaped flat disc 33 with a total of three extensions. A cylindrical pin 34 is formed on each of the extensions on the side of the star-shaped disk 33 facing the base 7. These pins 34 are in the assembled state in corresponding blind holes 35 which are formed in the base body 21, a compression spring 36 being arranged between the bottom of each blind hole 35 and the pin 34, which biases the locking member 9 in the direction of the socket carrier 13. On the the socket carrier 13 side is formed on the star-shaped disk 33 in the center a cylindrical extension 37 which merges into a flat edge 38.
  • the flat edge 38 is aligned with a correspondingly designed flat-edged recess 39 in the inner end face 32 of the socket carrier 13.
  • the assignment between the orientation of the flat edge 38 and the flat-edged recess 39 is made such that when the switching device 31 is switched off, ie when the switch device is turned to the rest position Socket carrier 13, the springs 36 can push the locking member 9 with the flat edge 38 into the flat-edged recess 39, so that rotation of the socket carrier 13 is impossible.
  • the first cam device 11 rests on the star-shaped disk 33 of the locking member 9, as is shown in detail in FIG. 3.
  • the cam device 11 contains a circular cylindrical flat disc 41, on the side 7 facing the bottom three tubular cylindrical extensions 42 are formed, which are aligned with three openings 43 passing through the disc 41, the diameter of which is smaller than the inside diameter of the tubular projections 42.
  • the circular disk 41 On the opposite side, the circular disk 41 carries three cams 44 projecting in the axial direction in the area of its outer circumference, which are distributed equidistantly along the circumference.
  • Each of these cams 44 has the same shape and contains a sloping surface 45 pointing in the circumferential direction and a sliding surface 46 running parallel to the disk 41; the inclined surface 45 extend at an angle of more than 45 ° with respect to the disk 41.
  • Centrally a bore 47 is provided through which the cylindrical projection 37 of the Arretierun g sgliedes 9 passes.
  • the tubular projections 42 are inserted into associated bores 48 which are formed in the base 7.
  • pressure springs 49 contained therein which are not illustrated in FIG. 1 for reasons of clarity, the cam device 11 is spring-biased in the direction of the socket carrier 13, for which purpose the pressure springs 49 on the free end face of the tubular projections 42 on the one hand and on the other hand on a shoulder support the bore 48.
  • each of the cylindrical switching contacts 51 protrudes through an associated bore 43 of the cam device 11, a shoulder 53 provided on the rear of the switching contact 51 preventing a compression spring 54 acting on the rear of the switching contact 51 from pushing the switching contact 51 forward out of the associated bore 43 pushes out.
  • the compression spring 54 is located coaxially within the compression spring 49 and is supported in the bore 48.
  • the cam device 12 has a similar shape to the cam device 11, which is why the same reference numerals are used for corresponding components as in the cam device 11.
  • the cam device 12 also has the circular one Disc 41, on the edge of which the cams 44 are formed, but which protrude onto the cam device 11.
  • the equally spaced cams 44 of the cam device 12 fit into the gaps between the cams 44 of the cam device 11, the inclined surfaces 45 of the cam device 11 and the inclined surfaces 45 of the cam device 12 being opposed in the assembled state; all inclined surfaces 45 of a cam device 11 or 12 each point in the same circumferential direction.
  • their disks 41 In this relative position between the two cam devices 11 and 12, their disks 41 have the smallest axial distance from one another and the corresponding bores 43 of the cam devices 11 and 12 are aligned with one another.
  • the cam devices 11 and 12 are rotated with respect to one another so that the inclined surfaces 45 slide along one another, then the cam devices 11 and 12 move axially apart until the sliding surfaces 46 of the cam devices 11 and 12 running parallel to the disks 41 lie one on top of the other, the then Bores 43 of the cam device 11 are at a gap with the holes 43 of the cam device 12.
  • the cam device 12 contains an approximately fan-shaped opening 54 which is aligned with the bore 47 and is formed from two 60 ° sectors. In this way, the opening 54 limits the permissible angle of rotation between the cam device 12 and the flat edge 38 passing through the opening 54.
  • the cam device 12 is non-rotatably and axially displaceably coupled to the rotatably mounted socket carrier 13, for which purpose a total of three pins 56 are formed on the rear side of the disk 41 of the cam device 12, which in FIG corresponding bores 57 of the socket carrier 13 are longitudinally displaceable.
  • the substantially cylindrical bushes 59 which have a longitudinally slotted blind bore on their front side, are provided at their end facing the chamber 29 with a pin 61 of smaller diameter, which through the associated bore 43 in the cam device 12 into the interior between the protrudes two disks 41 of the cam devices 11 and 12, as is shown in detail in FIG . 1 can be seen.
  • the pins 61 form the movable contacts of the switching device 31.
  • the plug device described so far in which, apart from the metallic sleeve 25, the springs and the current-carrying parts, all other components are made of plastic, operates as follows:
  • the rotatable socket carrier 13 When the plug 2 is not inserted, the rotatable socket carrier 13 is in its starting position in which the flat-edged recess 39 is aligned with the flat-edged extension 38 of the locking member 9, so that this can be pushed into the flat-edged recess 39 under the action of the compression springs 36.
  • the socket carrier 13 is thereby secured against rotation, while at the same time the paired switching contacts 51, 61 in the interior of the chamber 29 of the switching device 31 are separated from one another.
  • the starting position namely, the two cam devices 11, 12, as shown in Fig.
  • cams 44 of one cam device lie with their circumferentially extending tracks 46 on the tracks 46 of the other cam device, so that the through the switching contacts 51, 61 projecting through the openings 43, as described above, are mutually at a gap and are also separated from one another in the axial direction.
  • the back of the disc 41 of the cam device 12 rests on the end face 32 of the socket carrier 13 and thus presses the longitudinally displaceable sockets 59 back into the socket carrier 13.
  • the interaction of the cams 44 simultaneously causes the cam device 11 to act against the force of the compression springs 49 acting on its tubular extensions 42 pressed back into the base body 21, whereby at the same time the switch contacts 51 resting on the shoulders 53 are pressed back in the direction of the base 7.
  • the gusset-shaped opening 55 in the disk 41 of the cam device 12 ensures that the socket carrier 13 cannot be rotated back beyond the initial position because the flat sides of the flat edge 38 lie against the edges of the gusset-shaped opening 55, as shown in FIG. 2.
  • the plug 2 If, starting from this position, the plug 2 is inserted into the plug connector 1, its guide lug 65 formed on the cylindrical extension 15 slides into a longitudinally extending guide channel 66 of the housing 3 in the direction of the bottom 7.
  • the plug pins 16 penetrate here the associated stepped cylindrical bores 58 and finally into the bushes 59 located there, which, as soon as they hit the bottom of the blind bore in the bushes 59, advance against the force of the compression springs 49, 36 and 54 when the plug 2 is further inserted, which press the cam device 12 against the sockets 5Q or the socket carrier 3. This advancing goes solanae until the cylindrical extension 15 strikes the end of the cylindrical gap 14 with its front edge.
  • the guide nose 65 is thus located in front of the beginning of a guide channel 67 running in the circumferential direction.
  • FIG. 1 This operating position is shown in FIG. 1 and also in FIG. 4, which shows a view of the switching contacts 51 and 61 and the two cams 44 behind them, seen from the longitudinal axis of the bore 4.
  • the two switching contacts 51 and 61 are still axially and laterally at a distance from one another, while the cams 44 of the two cam devices 11 and 12 lie on one another with their straight tracks 46 and thus keep the disks 41 at a distance.
  • the plug can be rotated by a predetermined angle of rotation 68, as specified by the edges of the gusset-shaped opening 55.
  • the guide lug 65 runs in the guide channel 67 running in the circumferential direction, which prevents the plug 2 from being pulled out.
  • the cam device 12 coupled to the socket carrier 13 in a rotationally fixed manner also rotates, while the cam device 11 initially remains stationary in the housing 3.
  • the inclined surfaces 45 can be used to ensure that a connector 2 which has not yet been completely rotated into the end position is rotated into the end position according to FIG. 6 by the mutually sliding inclined surfaces 45.
  • the current paths from the plug pins 16 to the connecting terminals 8 are closed via the switching contacts 51, 61 of the switching device 31 that are in contact with one another in pairs; besides, now the Plug 2 are not pulled because its guide nose 65 is located in the channel 67, which engages around the guide nose 65 in the axial direction, based on the longitudinal axis of the plug device 1.
  • the plug 2 In order to be able to pull the plug 2, it must first be turned back into the starting position, the sloping surfaces 55 lying against one another sliding along one another. As a result, the cam device 11 is pressed back against the force of the compression springs 54 into the base 5, as a result of which the switching contacts 51 inserted in this cam device 11 are withdrawn. At the same time, the switching contacts 61 move away from the associated switching contacts 51 along a circular path, as is shown schematically in FIG. 7. That is, the switching contact 61 moves in the circumferential direction in the direction of an arrow 69, while the switching contact 51 moves in the axial direction along an arrow 71 from the contact point when the socket carrier 13 is turned back, as is schematically indicated by an arrow 72 on g e is interpreted.
  • the two cam devices 11 and 12 again take the position shown in Fig. 4, wherein the guide lug 65 of the plug 2 is located at the inner end of the axially extending guide channel 66.
  • the plug 2 can now be pulled, whereby the sockets 59 are withdrawn into the socket carrier 13 at the same time.
  • the springs 36 push the locking member in the direction of the socket carrier 13, so that the flat edge 38 can slide into the recess 39 and thereby secures the socket carrier 13 against rotation.
  • the switching device 31 is obviously actuated by rotating the fully inserted plug 2, which can only be removed again when the switching contacts 51, 61 are separated from one another.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP19840114449 1984-01-27 1984-11-29 Connecteur enfichable protégé contre les explosions muni d'un support de douilles pouvant tourner Expired - Lifetime EP0151715B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3411170 1984-01-27
DE19843411170 DE3411170A1 (de) 1984-03-27 1984-03-27 Explosionsgeschuetzter steckverbinder mit drehbarem buchsentraeger

Publications (3)

Publication Number Publication Date
EP0151715A2 true EP0151715A2 (fr) 1985-08-21
EP0151715A3 EP0151715A3 (en) 1987-12-09
EP0151715B1 EP0151715B1 (fr) 1991-03-13

Family

ID=6231695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840114449 Expired - Lifetime EP0151715B1 (fr) 1984-01-27 1984-11-29 Connecteur enfichable protégé contre les explosions muni d'un support de douilles pouvant tourner

Country Status (2)

Country Link
EP (1) EP0151715B1 (fr)
DE (1) DE3411170A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002050961A2 (fr) * 2000-12-18 2002-06-27 Ceag Sicherheitstechnik Gmbh Prise electrique
US7066758B2 (en) 1999-08-31 2006-06-27 Cooper Crouse-Hinds Gmbh Electrical socket
US7537472B1 (en) 1999-08-31 2009-05-26 Cooper Crouse-Hinds Gmbh Electric plug connector
CN110086025A (zh) * 2019-06-10 2019-08-02 四川永贵科技有限公司 一种旋转式插孔

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9115972U1 (de) * 1991-12-22 1992-02-20 Aloys Mennekes Anlagengesellschaft, 5942 Kirchhundem Anbausteckdose für Rundsteckvorrichtungen, insbesondere nach DIN 49 462/63
DE10047854A1 (de) * 2000-09-27 2002-04-25 Stahl R Schaltgeraete Gmbh Kompakte explosionsgeschützte Steckvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252778B (fr) *
FR825553A (fr) * 1937-08-13 1938-03-07 Dispositif de prise de courant électrique à contacts internes
DE697385C (de) * 1936-01-07 1940-10-12 Friemann & Wolf G M B H Sicherheitssteckvorrichtung mit Drehschalter
DE1251404B (fr) * 1967-10-05

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE801998C (de) * 1948-12-25 1951-02-01 Calor Emag Elek Zitaets Akt Ge Schlagwetter- und explosionsgeschuetzte Kupplungssteckvorrichtung
DE878232C (de) * 1951-04-22 1953-06-01 Eugen Wendt Schaltsteckdose

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252778B (fr) *
DE1251404B (fr) * 1967-10-05
DE697385C (de) * 1936-01-07 1940-10-12 Friemann & Wolf G M B H Sicherheitssteckvorrichtung mit Drehschalter
FR825553A (fr) * 1937-08-13 1938-03-07 Dispositif de prise de courant électrique à contacts internes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066758B2 (en) 1999-08-31 2006-06-27 Cooper Crouse-Hinds Gmbh Electrical socket
US7537472B1 (en) 1999-08-31 2009-05-26 Cooper Crouse-Hinds Gmbh Electric plug connector
WO2002050961A2 (fr) * 2000-12-18 2002-06-27 Ceag Sicherheitstechnik Gmbh Prise electrique
WO2002050961A3 (fr) * 2000-12-18 2002-08-29 Ceag Sicherheitstechnik Gmbh Prise electrique
CN110086025A (zh) * 2019-06-10 2019-08-02 四川永贵科技有限公司 一种旋转式插孔
CN110086025B (zh) * 2019-06-10 2023-11-24 四川永贵科技有限公司 一种旋转式插孔

Also Published As

Publication number Publication date
DE3411170A1 (de) 1985-10-03
EP0151715B1 (fr) 1991-03-13
EP0151715A3 (en) 1987-12-09
DE3411170C2 (fr) 1989-02-16

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