EP0141735A2 - Elektrische Verbindungssicherheitseinrichtung mit einem Schliessschieber, insbesondere als Steckdose zu gebrauchen - Google Patents

Elektrische Verbindungssicherheitseinrichtung mit einem Schliessschieber, insbesondere als Steckdose zu gebrauchen Download PDF

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Publication number
EP0141735A2
EP0141735A2 EP84402160A EP84402160A EP0141735A2 EP 0141735 A2 EP0141735 A2 EP 0141735A2 EP 84402160 A EP84402160 A EP 84402160A EP 84402160 A EP84402160 A EP 84402160A EP 0141735 A2 EP0141735 A2 EP 0141735A2
Authority
EP
European Patent Office
Prior art keywords
drawer
pins
electrical connection
orifices
connection device
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.)
Ceased
Application number
EP84402160A
Other languages
English (en)
French (fr)
Other versions
EP0141735A3 (de
Inventor
Lionel Martial
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.)
Sellem Jicelin
Original Assignee
Sellem Jicelin
Laitram Sub LLC
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 Sellem Jicelin, Laitram Sub LLC filed Critical Sellem Jicelin
Publication of EP0141735A2 publication Critical patent/EP0141735A2/de
Publication of EP0141735A3 publication Critical patent/EP0141735A3/de
Ceased 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
    • H01R13/44—Means for preventing access to live contacts

Definitions

  • the present invention relates to electrical safety connection devices.
  • the present invention relates to an electrical connection device, in particular an electrical outlet, arranged to avoid accidents due to electrocution.
  • the plastic pin or disc can be easily removed, for example by children.
  • Other devices include members connected to ground and initially closing the access orifices. Such devices are described and represented for example in the French patents published under the numbers 2 043 824 and 2 335 068.
  • electrical safety connection devices comprising a housing which houses electrical terminals and a barrel provided with holes allowing the insertion, in the housing, pins intended to be brought into contact with the terminals.
  • the devices include complementary structures on the housing on the one hand and on the male plug on the other hand, limiting the possibilities of withdrawal from the plug.
  • the user must necessarily, to remove the socket, pivot the barrel in the rest position in which said orifices are not aligned with the terminals and the means forming the piston block the barrel.
  • this system is both complex and expensive.
  • electrical safety connection devices of the type have also been proposed comprising a housing forming a housing for a plurality of fixed electrically conductive members, a barrel free of pivot closing the opening contour of the housing and provided with holes allowing the insertion into the housing, substantially parallel to the pivot axis of the barrel, of pins intended to be brought into contact with the conductive members, and of elastic means urging the barrel in rotation towards a safety position in which the orifices are not aligned with the conductive members.
  • connection devices comprising a housing forming a housing for a plurality of fixed electrically conductive terminals, a slide provided of holes displaceable parallel to the front face of the device from a first position in which it completely covers orifices provided in the front face of the case, opposite the terminals, to a second position in which the holes in the slide are aligned with the holes in the housing to allow insertion of pins in contact with the terminals, the slide being biased in its first position by a spring.
  • the present invention now proposes a new safety electrical connection device which is at the same time simple, robust, economical and perfectly reliable. ,
  • Another object of the present invention is to provide a safety electrical connection device which is protected against direct splashing of water.
  • Another object of the present invention is to provide a safety electrical connection device capable of being used with any standardized connection device currently available on the market.
  • Another object of the present invention is to provide a safety electrical connection device suitable for authorizing the contacting of the pins and associated terminals according to a simple conventional translational movement.
  • the safety electrical connection device comprises a housing which houses a plurality of electrically conductive terminals and which comprises a front plate provided with orifices to allow the insertion of electrically conductive pins in the housing, in order to establish an electrical connection between the terminals and the pins, a movable drawer associated with guide means defining a guide track inclined relative to the direction of introduction of the pins and adapted to allow the drawer to move in a va and comes between a first position, neutral, in which the drawer closes said orifices and a second position, in use, in which the drawer frees the orifices, elastic means that able to urge the drawer towards the first position, in the general direction of the guideway, while authorizing the displacement of the drawer in the second position when at least two pins introduced into the orifices exert on the drawer a force whose result is oriented in the general direction of the guideway, so that the elastic means return the drawer to the first position after removal of the pins, as well as stop means provided in the guide
  • the guide means advantageously define a straight guide path for the drawer.
  • the inclination of the path of the slide defined by the guide means, relative to the direction of insertion of the pins is between 20 ° and 50 ° and is advantageously equal to approximately 40 °.
  • the orifices and the elastic means have a common plane of symmetry.
  • sealing means are provided between the surface of the drawer directed towards said orifices and a facing surface provided on the housing, to prevent the penetration of fluid into the housing when the drawer is in first position.
  • the elastic means comprise a compression spring.
  • the surface of the drawer directed towards the orifices, on which the pins are supported during introduction into the housing is substantially perpendicular to the direction of introduction of these pins.
  • the surface of the drawer directed towards the orifices, on which the pins rest when they are introduced into the housing is substantially normal to the general direction of the guide track.
  • the stop means have projecting surfaces on the guide track transverse to the general direction thereof, and in the direction of the orifices.
  • a clearance is provided between the lateral walls of the drawer and of the guideway, which grows in the direction of the bottom of the guideway opposite to the orifices, to allow the drawer to pivot in the guide track when the result of the forces exerted on it deviates from the general direction of said guide track.
  • the device comprises a locking member which, in a safety position, prohibits the movement of the drawer in the second position.
  • the locking member comprises for example a pivoting element about an axis generally parallel to the direction of insertion of the pins and adapted to protrude into the guideway, in the safety position.
  • the guideway is defined by the combination of a casing and a covering element, comprising the front plate, which moreover delimit, in the assembled position, a housing capable of containing said terminals.
  • the device comprises a limited number of parts. Therefore, reliability is excellent. In addition, the assembly time of the device is particularly short.
  • Such a device can be used to form not only fixed sockets, but also, for example mobile sockets, at the level of extension cords or multiple sockets, or still other equivalent devices.
  • the safety electrical connection device 1 in accordance with the present invention, comprises a housing 10 obtained by assembling a casing 11 and a covering element 40, said housing housing inter alia a drawer 100 .
  • the covering element 40 has a front plate 41 visible in particular in FIG. 1, and which is provided with a plurality of access orifices 42, 43 whose axes referenced 0-0, parallel to each other generally extend perpendicular to the plane of the front plate 41.
  • the orifices 42 and 43 are adapted to allow the insertion of the ends of electrically conductive pins such as the pins referenced 90 in Figures 2 and 4, in the case.
  • the purpose of this insertion is to establish an electrical connection between pins 90 and terminals not shown in detail in the figures to simplify the representation, but illustrated for example under the reference 80 in FIG. 7, said terminals, electrically conductive, being supported in a fixed position inside the housing 10.
  • the front plate 41 is advantageously surrounded, on the outside, by an annular projection 44 defined internally by a cylindrical envelope delimiting an access passage to the plate 41 and to the orifices 42, 43 formed therein, the dimensions of said passage being adapted to the transverse dimensions of the support of the pins.
  • Such supports made of insulating material have a cross section (considered substantially perpendicular to the direction of the pins), generally circular or rectangular.
  • These orifices 42, 43 are associated with respective terminals housed in the housing 10 and connected one to a phase line, the other to a neutral line.
  • the number of electrically conductive terminals housed in the housing 10, and by the same token the number of orifices 42, 43 formed in the front plate 41 may be greater. It is thus possible to provide for a greater number of phases for the electrical connection device.
  • the casing 11 and the cover element 40 define in combination a guide track inclined relative to the direction of insertion of the pins 90, direction which corresponds to the axes 0 -0 previously mentioned, perpendicular to the plane of Figure 1 and parallel to the planes of Figures 2 to 5.
  • this guideway is defined by a chamber 120, generally parallelepiped, inclined on the direction of introduction of the pins 90.
  • This chamber 120 is delimited by two parallel main surfaces 121 and 122, which are inclined on the direction of introduction of the pins, two side walls 123, 124, mutually parallel and perpendicular to the main surfaces mentioned above, and finally two surfaces 125, 126 respectively upper and lower, transverse to the direction of introduction of the pins.
  • the main surface 121, inclined on the direction of insertion of the pins 90 and the upper surface 125 are defined on the cover element 40, and more precisely on a block 42 integral with the front plate 41, and directed towards the rear of it.
  • the second main surface 122, as well as the side walls 123 and 124 and the lower surface 126 are delimited in a block 12 formed on the casing 11.
  • said casing 11 consists of a wall 13 generally parallel to the front plate 41, which supports on the one hand the block 12, in the direction of the front plate 41, on the other hand a web 14 which delimits in combination with the block 12 and the cover element 40 a housing 15 capable of containing the electrical terminals above-mentioned conductors such as 80 and 96.
  • the outer casing of the casing 11, and in particular of the web 14 integral with the latter, is complementary to that of the covering element 40, to form a unit devoid of projections on the periphery.
  • the orifices 42, 43 are formed in the front plate 41 facing the upper surface 125 of the chamber 120 forming the guide track.
  • the drawer 100 when the drawer 100 is pushed back towards the bottom 126 of the chamber 120, after a displacement of sufficient amplitude, the drawer 100 can, as shown in FIG. 2, release the orifices 42, 43. The pins 90 can then be brought into contact with the terminals 80 contained in the housing. This position will be called the position of use in the following description.
  • the electrical connection device comprises elastic means 110 urging the drawer towards the neutral position.
  • the elastic means exert a force on the slide 100, in the general direction of the track. guidance defined by the chamber 120, and in the direction of the orifices 42, 43.
  • the elastic means are composed of a compression spring 110 disposed in the axis of the aforementioned guide track.
  • the compression spring 110 is supported on the one hand on the lower surface 126 of the chamber 120, on the other hand on the lower surface 103 of the core 101 of the drawer 100, that is to say the surface of the drawer which is opposite the front plate 41.
  • the device also comprises means for correctly maintaining the compression spring 110 in abutment against the two aforementioned surfaces.
  • these means are formed by a lug 104 projecting, in the central position, on the lower surface 103 of the drawer 100, and on which the corresponding end of the spring 110 is engaged.
  • the means for positioning the compression spring 110 are formed by two spaced and parallel pins 127, of parallelepipedic envelope, connected to the main surface 122 and to the lower surface 126 of the chamber 120, pins 127 which extend substantially in the direction of movement of the slide 100 defined by the chamber 120, and between which the second end of the spring 110 is arranged, as appears in particular in FIGS. 4 and 5.
  • the two ends of the core 101 of the drawer 100 extend opposite the front plate 41 by wings 105 generally parallel to each other.
  • the length of the wings is of course less than the length of the said chamber separating the upper 125 and lower 126 surfaces.
  • transverse distance that is to say considered substantially parallel to the core 101, separating the respective internal surfaces 106 opposite the wings 105 is slightly greater than the distance separating the external and opposite lateral surfaces 128 of the let's hold 127, these surfaces 106 and 128 being substantially parallel to each other.
  • the wings 105 of the drawer 100 move by translation in the space provided between the external lateral surfaces 128 of the lugs 127 and the walls 123 and 124 of the chamber 120.
  • the compression spring 110 induces a pivoting torque on the slide 100.
  • This torque tends to pivot the slide about an axis extending generally perpendicular to the main surfaces 121, 122, so that the end surface 107 of the wings 105, generally parallel to the upper surface 102 of the core 101, but opposite to it, comes to bear against the upper surface 129 of the studs 127, directed towards the front plate 41 and substantially parallel thereto.
  • the slide 100 bears against the surfaces 129 of the pins 127 which constitute stop means, in the guide track. Therefore the pins prevent movement of the drawer 100 in the second position of use, each time the result of the forces exerted on the drawer 100, by introducing objects into the orifices 42, 43 deviates from the direction general of the guideway.
  • the length of the core is substantially equal to the distance between the side walls 123, 124 of the chamber 120, while of course being slightly lower than the latter to allow movement.
  • the edge formed between the upper surface 102 and the lateral surfaces 108 of the drawer is rounded or truncated to avoid jamming of the drawer against the walls of the chamber 120.
  • the upper surface 102 of the slide 100, on which the pins 90 are supported when they are introduced into the housing is substantially normal to the general direction of the guide track.
  • the surface 102A of the drawer 100 directed towards the orifices 42, 43, and on which the pins 90 are supported when they are introduced into the housing is substantially perpendicular to the direction of introduction of these pins, defined by the axis OO of the orifices.
  • the embodiment shown in Figure 6 has the advantage that the upper surface 102A is parallel to the front plate 41, and therefore, from the outside, the operator can in no way know the direction of translation of the drawer 100.
  • the Applicant has noticed that when the device is used with pins 90 whose end is not correctly rounded, as happens when the pins are made by bending sheet metal, during the introduction of said pins 90, the upper surface 102A can be deteriorated and subsequently the sliding of the ends of the pins 90 on the surface 102A, can be made more difficult.
  • FIGS. 2 to 5 is currently considered preferential with regard to the inclination of the upper surfaces 102 of the slide 100 relative to the direction of insertion of the pins.
  • the electrical connection device comprises a locking member 150 which, in a safety position, as shown in Figure 6, prohibits the movement of the drawer 100 in the second position.
  • the locking member is more precisely formed of a washer pivotally carried about an axis generally parallel to the direction of introduction of the pins, and carrying a radial projection 151 adapted to extend in the guideway, in the safety position, in order to enter a recess 109 provided in correspondence in the core 101 of the drawer 100.
  • the recess 109 is provided to provide on the core 101 a surface 115 oriented substantially perpendicular to the direction of insertion of the pins 90, and directed towards the wall 13 of the casing, to rest against the radial projection 151 mentioned above.
  • the axis of rotation of the locking washer 150 is defined by the ground pin 95 on which the washer 150 is engaged.
  • the washer 150 being housed in the housing, the latter is biased in abutment against the front plate 41 and if necessary against the surface 115 of the drawer 100, by means of the radial projection 151 when the member locking is in the safety position, by a compression spring 160.
  • This rests on the one hand against the surface of the washer 150 directed towards the wall 13 of the casing, on the other hand against a washer 170 engaged so similar to spring 160 on pin 95.
  • the washer 170 rests against a surface of the casing 11 directed towards the front wall 41.
  • the surface of the washer 150 directed towards the front plate 41 is provided, on either side of its central orifice 152 shown in FIG. 81, with two diametrically opposite ribs 153, which have for example a cross section, perpendicular to the plane of the washer 150, rectangular.
  • the rotation of the washer 150 around the axis of the spindle 95 can thus be controlled using an appropriate tool 180 schematically represented in longitudinal section in FIG. 9, which essentially consists of a tubular element capable of being engaged on the ground spindle 95, and which is provided at the end with two diametrically opposite axial notches 181 capable of engaging with the ribs 153 to allow the rotation of the washer 150 during actuation in rotation of the tool 180 around pin 95.
  • a notch 154 is formed in the washer 150 in a position diametrically opposite to the radial projection 151.
  • the locking member can be designed in the form for example of a lock cylinder, lockable and unlockable using an appropriate key, and cooperating with the drawer 100, or means capable to be introduced into the displacement path thereof.
  • the electrical connection device has absolute security, only the holder of the key having the possibility of carrying the drawer 100 in the position of use, to release the orifices 42, 43.
  • FIG. 7 is generally similar to that shown in Figure 6, but however does not have locking members. , The embodiment shown in Figure 7 is given by way of illustration, and will therefore not be described in detail. The elements of the embodiment shown in Figure 7 similar to the elements of the alternative embodiments shown in Figures 1 to 5 on the one hand, and in Figure 6, on the other hand will bear identical references.
  • the upper surface 102A of the drawer 100 is, in a manner comparable to the embodiment shown in FIG. 6, perpendicular to the direction of insertion of the pins.
  • FIGS. 6 and 7 the means for assembling the covering element and the casing 11 are shown in the form of screws 190, 191 engaged in the casing 11 by the rear of the wall 13. More precisely , the screw 190 passes through a bore 192 formed in one of the tenons 127, as shown in FIG. 10, to come into engagement in the cover element 40.
  • the head of the other screw 191 rests on the outside of the wall 13, while the body of the screw 191 passes through the latter to engage a threaded bore provided axially in the rear end of the earth pin 95, the latter being moreover retained on the covering element 40.
  • a threaded bore provided axially in the rear end of the earth pin 95, the latter being moreover retained on the covering element 40.
  • FIG. 7 it is possible by example provide an annular rib 97 on the ground pin 95, rib 97 which rests against the plate 41.
  • sealing means 200 are provided between the surface 102 of the drawer 100 e directed to the orifices 42, 43, and the internal surface opposite the front plate 41, to prevent the penetration of fluid into the housing when the slide 100 is in the first so-called neutral position, as shown in FIG. 6.
  • the sealing means 200 are provided on the surface of the front plate 41.
  • Such sealing means can be formed for example, as shown diagrammatically in FIG. 10, by a strip of flexible material glued on the inside of the front plate 41, facing the chamber 120, and comprising two openings opposite the orifices 42, 43.
  • the sealing means 200 can be formed by simple washers or O-rings fixed on the inside of the plate 41 on the periphery of the orifices 42, 43.
  • the Applicant has determined that, preferably, the inclination a of the path of movement of the slide 100 defined by the guide means formed by the chamber 120, relative to the direction of introduction of the pins 90 is between 20 ° and 50 ° and is, according to an advantageous embodiment, equal to approximately 40 °.
  • the Applicant has in fact determined that such an inclination was satisfactory on the one hand as regards the amplitude of the forces to be exerted during the insertion of the pins 90 to move the drawer 100, on the other hand as regards the minimum length of the room 120 suitable to authorize a complete covering of the orifices 42, 43 in the neutral position and a total release of these orifices in the position of use of the drawer.
  • the direction of movement of the slide 100 is represented by the dashed line referenced B
  • the direction of introduction of the pins is given by the axes OO of the orifices 42 and 43 and the aforementioned inclination is considered between these two directions.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Drawers Of Furniture (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP84402160A 1983-11-02 1984-10-26 Elektrische Verbindungssicherheitseinrichtung mit einem Schliessschieber, insbesondere als Steckdose zu gebrauchen Ceased EP0141735A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8317415A FR2554281B1 (fr) 1983-11-02 1983-11-02 Dispositif de connexion electrique de securite comportant un tiroir obturateur coulissant, utilisable en particulier sous forme de prise de courant
FR8317415 1983-11-02

Publications (2)

Publication Number Publication Date
EP0141735A2 true EP0141735A2 (de) 1985-05-15
EP0141735A3 EP0141735A3 (de) 1985-06-19

Family

ID=9293711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84402160A Ceased EP0141735A3 (de) 1983-11-02 1984-10-26 Elektrische Verbindungssicherheitseinrichtung mit einem Schliessschieber, insbesondere als Steckdose zu gebrauchen

Country Status (2)

Country Link
EP (1) EP0141735A3 (de)
FR (1) FR2554281B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101834372A (zh) * 2010-04-13 2010-09-15 成都云杉科技有限公司 套壳式安全插头

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR80723E (fr) * 1961-08-10 1963-06-07 Prise de courant avec interrupteur automatique
FR2374759A1 (fr) * 1976-12-20 1978-07-13 Munz Emile Prise electrique de securite
FR2421485A1 (fr) * 1978-03-31 1979-10-26 Barthelemy Louis Prise de courant de securite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101834372A (zh) * 2010-04-13 2010-09-15 成都云杉科技有限公司 套壳式安全插头
CN101834372B (zh) * 2010-04-13 2012-07-04 成都云杉科技有限公司 套壳式安全插头

Also Published As

Publication number Publication date
FR2554281B1 (fr) 1986-02-07
EP0141735A3 (de) 1985-06-19
FR2554281A1 (fr) 1985-05-03

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