EP4131659A1 - Steckdosenmechanismus und entsprechende steckdose - Google Patents

Steckdosenmechanismus und entsprechende steckdose Download PDF

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Publication number
EP4131659A1
EP4131659A1 EP22184068.9A EP22184068A EP4131659A1 EP 4131659 A1 EP4131659 A1 EP 4131659A1 EP 22184068 A EP22184068 A EP 22184068A EP 4131659 A1 EP4131659 A1 EP 4131659A1
Authority
EP
European Patent Office
Prior art keywords
electrical
plane
female terminal
opening
insulating 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
EP22184068.9A
Other languages
English (en)
French (fr)
Other versions
EP4131659C0 (de
EP4131659B1 (de
Inventor
Simon DELMAS
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 SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France 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
Application filed by Legrand SNC, Legrand France SA filed Critical Legrand SNC
Publication of EP4131659A1 publication Critical patent/EP4131659A1/de
Application granted granted Critical
Publication of EP4131659C0 publication Critical patent/EP4131659C0/de
Publication of EP4131659B1 publication Critical patent/EP4131659B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/78—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
    • 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
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/483—Pivoting arrangements, e.g. lever pushing on the spring

Definitions

  • the present invention generally relates to the field of female electrical connection terminals for socket outlets, that is to say electrical connection terminals fitted to socket outlets and the functional part of which comprises a reception cell intended to receive a pin of an electrical plug for supplying current to an electrical appliance connected to the electrical plug.
  • the invention relates more specifically to a power outlet mechanism as defined in the preamble of claim 1.
  • a power outlet mechanism comprises an insulating base in which are housed two female electrical connection terminals, one being supplied by the electrical network with neutral current while the other is supplied with phase current, which insulating base is intended to be housed in an electrical box into which the electrical conductors coming from the network arrive.
  • the free end of the electrical conductor inserted into the terminal is forced to adopt an orientation imposed by the terminal, while the rest of the length of electrical conductor is pushed back into the bottom of the electrical box, behind the insulating base of the mechanism. 'equipment.
  • the electrical conductor is naturally curved.
  • the natural curvature adopted by the electrical conductor depends of course on its section, so that the size (also called “overall volume”) of the curved portion of electrical conductor is more or less important depending on whether the electrical conductor has a section more or less large.
  • Document electrical connection female terminal FR3060873 is bulky, so that the insulating base of the socket mechanism that it equips is itself bulky and leaves little space in the bottom of the electrical box to, on the one hand, accommodate the curved portion of the electrical conductor generated by the connection of the terminal, and, on the other hand, drive back the length of the electrical conductor having allowed this connection. This is all the more troublesome when the electrical box receiving the current outlet mechanism is shallow.
  • the present invention proposes a current outlet mechanism which comprises a female electrical connection terminal which is not very bulky, which frees up space at its second face, located at the rear of the female terminal, to facilitate connection of the electrical conductor which supplies it, and to accommodate the naturally curved portion of the electrical conductor.
  • the second plane is brought closer to the first plane of the female terminal, so as to free up space at the rear of said female connection terminal.
  • the space thus freed up facilitates the connection of the female terminal and makes it possible to accommodate the curved portion of the electrical conductor which supplies it.
  • the distance separating the first and second planes from the female terminal can be zero, the second plane then being coincident with the first plane.
  • the distance separating the first and second planes from the female terminal can still be negative, that is to say that the second plane is located in front of the first plane.
  • the space released at the rear of the terminal is preferably calibrated to fully accommodate the overall volume occupied by the curved portion of the electrical conductor.
  • the base of the socket mechanism is designed to fit the female terminal and follow the offset of the second plane of the female terminal forwards, so as to free up space in the bottom of the box. electrical which receives it while ensuring, thanks to the thickness of the bottom wall separating the second and third planes, a function of guiding the electrical conductor into the second place of insertion of the female terminal.
  • the space freed up in the bottom of the box makes it possible to accommodate, without crushing, the curved portion of the electrical conductor supplying each female terminal.
  • the conductor guide facilitates the connection of the electrical conductor in the female terminal, without interfering with the natural curvature of the electrical conductor.
  • the invention finally relates to a power outlet comprising, on the one hand, an apparatus support accommodating a power outlet mechanism according to the invention, and, on the other hand, a trim delimiting an insertion well of an electrical plug, the trim having a bottom wall pierced with orifices giving access to the female electrical connection terminals arranged in the insulating base of the mechanism.
  • This socket 1 comprises a socket mechanism 3000; 4000 closed by a trim 8 and attached to a device support 3.
  • the device support 3 is used to mount the base of the socket mechanism in an electrical box 5 to be built into the receiving wall.
  • the trim 8 defines an insertion well 9 (see figure 11 And 13 ) into which a user can insert an electrical plug 6 (see figure 4 ) for the power supply of an electrical device connected to said plug.
  • the socket mechanism 3000; 4000 includes an insulating base 30; 40 with, on the one hand, a side wall which delimits, at the front, a reception opening 35; 45 intended to be closed by the trim 8, and, on the other hand, a bottom wall 31; 41 on the inner face of which are arranged slots intended to receive electrical connection terminals adapted to establish electrical contact between conductors electricity coming from the electrical network and from the conductive elements of the electrical plug plugged into the insertion well 9 of the trim 8.
  • the insulating base 30 of the socket mechanism 3000 more specifically comprises three slots 38, 39 to accommodate three electrical connection terminals: two side slots 38 intended to receive two female terminals and a central location 39 intended to receive a male terminal.
  • the term “female terminal” refers to an electrical connection terminal whose functional part comprises a reception socket intended to receive a connection pin 51 of the electrical plug 50 (shown on the figure 4 ), while the term “male terminal” is used, an electrical connection terminal whose functional part comprises an electrical contact element, such as a ground pin 6 (or a lyre according to another embodiment not shown), intended to protrude into the insertion well 9 of the trim 8 to plug into a socket of the electrical plug 50.
  • the earth pin 6 is generally that of a socket of the Franco-Belgian type.
  • the ground connection yoke is provided in a German standard socket (type F), not shown here.
  • the insertion well 9 of the trim 8 opens forwards and is closed at the rear by a bottom wall 7 (see figure 11 And 13 ) pierced with three holes, two giving access to the sockets for receiving the female terminals of the socket mechanism, and a third leaving the passage for the earth pin 6.
  • the trim 8 comprises a protective wall 4, sliding in the insertion well 9 in the manner of a piston wall, provided with orifices in correspondence with the orifices of the bottom wall 7. This protective wall 4 makes it possible to close the insertion well 9 when the socket 1 is unused.
  • the socket mechanism incorporates particularly advantageous female terminals, the profile of which allows a profile of the bottom wall of the optimized insulating base which releases, at the entrances for the electrical conductors, a space For accommodate the natural curvature of said electrical conductors whose end is blocked in the female terminal.
  • This space facilitates the so-called “wiring” operation by which the electrical conductors are connected to the terminals of the mechanism according to an insertion direction imposed by the terminal. Indeed, this space makes it possible to accommodate, without crushing it, the natural curvature of the electrical conductors which is generated between the end of the conductor inserted into the terminal and the remaining length of conductor stored in the bottom of the electrical box.
  • the profile of the insulating base 30 of the current outlet mechanism 3000 of the figure 11 is not identical to the profile of the insulating base 40 of the socket mechanism 4000 of the figure 13 since each insulating base 30; 40 is adapted to the profile of the female terminals it contains.
  • the insulating base of the current socket mechanism according to the present invention can also have other profiles depending on the profile of the female terminals that it contains and several variants of the current socket 1 according to the present invention are thus obtained.
  • front and rear will be defined with respect to the gaze of the user turned towards the socket 1 in the use position on any receiving wall.
  • front will refer to the side of the power outlet facing the user
  • rear will refer to the side of the power outlet facing away from it, i.e. that is to say facing the inside of the receiving wall.
  • a female terminal 100 has been shown more precisely; 200; 300; 400; 600 according to the invention.
  • the female terminals 100; 200; 300; 400; 600 are shown alone or mounted in the insulating base 10; 20; 30 ; 40; 60 of a first, second, third, fourth or fifth embodiment of an outlet mechanism 1000; 2000; 3000; 4000; 6000, said insulating base 10; 20; 30 ; 40; 60 being shaped to be specially adapted to the shape of the female terminals it receives.
  • the latter comprises a conductive element which delimits, on the one hand, a first place of insertion 110; 210; 310; 410; 610 intended to receive a connection pin 51 of the electrical plug 50 (shown on the figure 4 ) to establish electrical contact between said connection pin 51 and the conductive element, and, on the other hand, a second place of insertion 122; 222; 322; 422; 622, distinct from said first insertion site 110; 210; 310; 410; 610, intended to receive an electrical conductor 2 coming from the network (such as the one shown in the picture 2 ) to establish electrical contact between the electrical conductor 2 and the conductive element.
  • the first place of insertion 110; 210; 310; 410; 610 is a place where the electrical contact is established between the connection pin 51 of the electrical plug 50 and the conductive element and it corresponds to the “reception socket” 110; 210; 310; 410; 610 from female terminal 100; 200; 300; 400; 600.
  • the second place of insertion 122; 222; 322; 422; 622 is a place where the electrical contact is established between the stripped core of the electrical conductor 2 coming from the network and the conductive element. This second place of insertion forms an electrical housing 122; 222; 322; 422; 622 for electrical conductor 2.
  • the first and second places of insertion 110; 210; 310; 410; 610, 122; 222; 322; 422; 622 are formed within two separate parts of the conductive element. These two separate parts are electrically connected to each other: this is a functional part comprising the reception cell 110; 210; 310; 410; 610, and an electrical connection part 120; 220; 320; 420; 620 comprising the electrical housing 122; 222; 322; 422; 622.
  • the conductive element of the female terminal 100; 200; 300; 400; 600 is made of a metallic material which has satisfactory electrical conductivity to conduct the current from the electrical connection part 120; 220; 320; 420; 620 to the reception cell 110; 210; 310; 410; 610.
  • the conductive element of the terminal is made of copper, or of a metal alloy containing copper, in particular brass or bronze.
  • the conductive element is made in one piece, by bending a metal strip 115; 215; 315; 415.
  • the conductive element is formed in several parts mechanically and electrically connected together: here, one of the parts is terminated by a secondary connection pin 642 force-fitted into a secondary socket 640 provided on the other part.
  • the reception cell 110; 210; 310; 410; 610 is accessible from a first face of the female terminal, here the front face, via an inlet mouth delimited by a free edge 111; 211; 311; 411; 611 of said conductive element.
  • the reception cell 110; 210; 310; 410; 610 is generally cylindrical and extends along an X axis crossing the female terminal from front to rear.
  • the reception cell is delimited between two branches 116; 216; 416; 616 of a clamp 117; 217; 417; 617, articulated around an axis C1 (parallel to the axis X), between which is clamped the connection pin of the electrical plug 50 introduced through the inlet mouth, in a parallel insertion direction ( and even confused) to the X axis.
  • This clamp 117; 217; 417; 617 is formed by cutting and bending the metal strip 115; 215; 415; 615.
  • the reception cell 310 is delimited between two branches 316 of a U-shaped clamp 317, articulated around an axis C2 (perpendicular to the axis X), between which the connection pin of the plug is clamped inserted through the inlet mouth, along the direction of insertion coincident with the X axis.
  • the U-shaped clamp 317 is formed by cutting and bending the metal strip 315.
  • This clamp 317 is reinforced by a piece U-shaped, also called "jumper 318", to which it is riveted.
  • This jumper 318 encloses the clamp 317 to ensure that the clamping force of the branches 316 is constant over time, including after several insertions and withdrawals of the connection pin from the plug in this reception socket 310.
  • Electrical housing 122; 222; 322; 422; 622 is it accessible from a second face of the female terminal opposite said first face, here the rear face, via an access opening delimited by an edge 125; 225; 325; 425; 625.
  • female terminal 100; 200; 300; 400; 600 rests by its rear face on the bottom wall 11; 21; 31; 41; 61 of the insulating base 10; 20; 30 ; 40; 60 of the socket mechanism 1000; 2000; 3000; 4000; 6000, at the corresponding location of this bottom wall 11; 21; 31; 41; 61 so that the access opening of its electrical housing 122; 222; 322; 422; 622 is positioned opposite the inlet (or insertion opening) provided in said bottom wall 11; 21; 31; 41; 61 of the insulating base 10; 20; 30 ; 40; 60.
  • the female terminal is electrically supplied, from its rear face, by inserting the stripped core of the electrical conductor 2 (entering the insulating base via said entry in the bottom wall) via the access opening in electrical housing 122; 222; 322; 422; 622.
  • An electrical contact is made in the electrical housing 122; 222; 322; 422; 622, downstream of this access opening, between the stripped core of the electrical conductor 2 and the conductive element of the female terminal 100; 200; 300; 400; 600.
  • the conductive element carries electrical energy from the electrical conductor 2 to the connection pin 51 of the electrical plug 50 inserted, from the front side of the female terminal, via the entry mouthpiece in the reception cell 110; 210; 310; 410; 610 of the conductive element.
  • a first plane P1 which contains the edge 111; 211; 311; 411; 611 delimiting the inlet mouth into the reception cell 110; 210; 310; 410; 610, and which extends perpendicular to the extension axis X of the reception cell 110; 210; 310; 410; 610.
  • a second plane P2 parallel to the first plane P1 and containing all or part of the edge 125; 225; 325; 425; 625 delimiting the access opening to the electrical housing 122; 222; 322; 422; 622.
  • the first and second planes P1, P2 are located from each other at a distance D1 less than or equal to 9 millimeters (mm).
  • the first and second planes P1, P2 are for example located at a distance of between 5 mm and 8 mm from each other.
  • any other value of distance D1 less than or equal to 9 mm can be envisaged.
  • the first and second planes P1, P2 are separated from each other by a negative distance D1, i.e. the second plane P2 is located in front of the first plane P1 (see figure 13 ), the distance being always measured starting from the plane P1 (see direction of the arrow indicating the distance D1).
  • the distance D1 separating the first and second planes P1, P2 is zero, that is to say that the first and second planes P1, P2 are coincident l with each other.
  • the offset of the second plane P2 forward of the female terminal 100; 200; 300; 400; 600 clears space at the rear face of the female terminal 100; 200; 300; 400; 600.
  • the offset of the second plane P2 forwards, in the direction of the first plane P1 results in the fact that the second plane P2 is offset forwards with respect to one end rear 112; 312; 612 of the reception cell 110; 310; 610, opposite the inlet mouth.
  • the offset of the second plane P2 forwards, in the direction of the first plane P1 results in the fact that the female terminal 200 of electrical connection has a reduced overall height, here between 5 millimeters (mm) and 9 millimeters (mm), preferably between 5 and 8 millimeters.
  • the female terminal 200 comprises on its rear face, opposite the inlet opening in the reception cell 210, an outlet opening of the reception cell 210.
  • the edge 212 delimiting the the outlet opening of the reception cell is contained in the second plane P2.
  • the standard connection pin 51 of the electrical plug 50 inserted into the female terminal 200 is then adapted to pass through the reception cell 210, to come out through the outlet opening and to extend, towards the rear, at the beyond female terminal 200.
  • the location of the second plane P2 in front of the first plane P1 results in the fact that the second plane P2 is offset forwards with respect to the mouth of entry into the reception cell 410.
  • This offset generates even more space on the side of the rear face of the female terminal 400, even if it is accompanied by a lateral distance of the electrical housing 433 with respect to the central extension axis X of the reception cell 410.
  • positioning the second plane P2 in front of the first plane P1 frees up more space at the rear face of the female terminal 400 and increases the lateral dimensions of the female terminal 400.
  • the stripped core of the electrical conductor 2 is inserted, via the access opening, into the electrical housing 122; 222; 322; 422; 622 of the female terminal, along an insertion direction Y (see figure 2 , 4 , 7 , 13 And 14 ) which can be inclined at an angle S less than or equal to 45° with respect to an axis H perpendicular to the second plane P2, and passing through the center of the access opening.
  • the direction of insertion Y of the stripped core of the electrical conductor into the electrical housing 122; 222; 322; 422; 622 of the terminal is not necessarily exactly parallel to the direction of insertion X of the connection pin 51 of the electrical plug 50 in the reception cell 110; 210; 310; 410; 610 of this terminal, but it can be inclined at an angle, for example equal to 35° or even 45°, with respect to said direction of insertion X.
  • This arrangement facilitates the electrical connection of the female terminal 100; 200; 300; 400; 600, including in connection conditions in which the electrical conductors are relatively short and leave little room for manoeuvre.
  • the stripped core of the electrical conductor can thus be inserted into the electrical housing 122; 222; 322; 422; 622 with a small angle S relative to the axis of extension X of the cell, without this inclination compromising the electrical connection of the female terminal 100; 200; 300; 400; 600.
  • the female terminal 100; 200; 300; 400; 600 includes means for clamping the stripped core against a conductive wall 121; 221; 321; 421; 621 (see figure 2 , 4 , 7 , 13 And 14 ) partially delimiting the electrical housing 122; 222; 322; 422; 622 of the connection part 120; 220; 320; 420; 620 from the female terminal.
  • the female terminals shown are self-tightening terminals and the clamping means of each female terminal is formed by a leaf spring (not shown in the first embodiment) 230; 330; 430; 630 which permanently exerts a bearing force in the direction of said conductive wall 121; 221; 321; 421; 621.
  • the stripped core of electrical conductor 2 When the stripped core of electrical conductor 2 is inserted into electrical housing 122; 222; 322; 422; 622 via the access opening, it is automatically placed between the leaf spring 230; 330; 430; 630 and the conductive wall 121; 221; 321; 421; 621, so that the leaf spring then clamps the stripped core against said conductive wall 121; 221; 321; 421; 621.
  • the leaf spring 230; 330; 430; 630 is made of a metallic material, which may be different from that of the conductive element of the female terminal 100; 200; 300; 400; 600.
  • a 150 disconnect buggy; 250; 350; 450 (not visible in the fifth embodiment of the female terminal 600 represented on the figure 14 ) is mounted on the conductive element of the female terminal, in order to be able to disconnect the electrical conductor inserted into the electrical housing 122; 222; 322; 422; 622 from the female terminal.
  • This disconnect stroller 150; 250; 350; 450 is made of insulating material, for example plastic. When it is activated by a user or an installer, it exerts a disconnection force counter to the pressure force exerted by the leaf spring 230; 330; 430; 630.
  • This disconnection force separates the leaf spring 230; 330; 430; 630 opposite the conductive wall 121; 221; 321; 421; 621, which frees the stripped core of the electrical conductor from the pressure force exerted by the leaf spring 230; 330; 430; 630. It is then possible to remove the stripped core from the electrical housing 122; 222; 322; 422; 622 in which it was inserted, via the access opening to said electrical housing, which electrically disconnects the female terminal 100; 200; 300; 400; 600.
  • the conductive element of the female terminal 100; 200; 300; 400; 600 delimits a third place of insertion (not visible in the second, fourth and fifth embodiments) 123; 323 intended to receive an electrical tapping conductor to establish electrical contact between an electrical tapping conductor and the conductive element of the female terminal (see figure 1 And 5 ).
  • the third place of insertion forms a second electrical housing 123; 323 similar to the first electrical housing 122; 222; 322; 422; 622 previously described.
  • This second electrical housing 123; 323 is accessible from the rear face of the female terminal 100; 200; 300; 400; 600, via a second access opening, separate from the access opening to the first electrical housing 122; 222; 322; 422; 622, and delimited by an edge 126; 326 (not visible on the second, fourth and fifth embodiments). All or part of the edge 126; 326 delimiting said second access opening is, like edge 125; 225; 325; 425; 625, delimiting the first access opening to the first electrical housing 122; 222; 322; 422; 622, contained in the second plane P2.
  • the stripped core of the electrical transplanting conductor is clamped against a conductive wall delimiting the second electrical housing 123; 323 by means of a leaf spring similar to that used in the first electrical housing.
  • the electrical connection part 120 of the female terminal 100 comprises two ducts, substantially cylindrical with parallel axes, forming the first and second electrical housings 122, 123 in which can be inserted the stripped cores of the electrical conductors (the main conductor and that of transplanting). These ducts are delimited by parts of the metal strip 115 cut, curved and bent. Each curved part of the metal strip 115 forms the conductive wall 121 against which the stripped core inserted in the electrical housing 122, 123 is clamped by the leaf spring. The rear free edge 125, 126 of the metal strip 115 thus curved delimits, at the level of each conduit, the access opening to the electrical housing 122, 123.
  • each electrical housing 122, 123 is also closed, at the front, by a wall 124, which prevents access to said electrical housings 122, 123 from the front of the female terminal 100.
  • openings 128 are provided in a flat portion of the metal strip 115 to fix the leaf spring.
  • the leaf spring can for example be formed by a metal strip folded over so as to form an elbow which provides the spring function. Such a leaf spring is similar to the leaf spring 230 of the second embodiment of the female terminal 200 visible on the figure 4 .
  • the electrical connection part 220 is in all respects similar to the electrical connection part 120 of the female terminal 100 according to the first embodiment, except that it is of lower height, the electrical connection part 220 being aligned, transversely, with the reception cell 210.
  • the electrical connection part 320 of the female terminal 300 is formed by a metal strip which extends from the base of the U-shaped clamp 317 whose branches 316 delimit the reception cell 310.
  • This strip metal has, from where it is connected to the clamp 317, a portion 327 inclined with respect to the axis X of extension of the reception cell 310 followed by a first bump 328 whose concavity is turned in direction of the mouth of the reception cell 310 (that is to say facing the inside of the female terminal 300) and in which the access openings to the first and second electrical housings 322, 323 are provided Downstream of the first bump 328, the metal strip extends globally parallel to the axis X of extension of the reception cell 310 before forming a second bump 324 whose concavity is turned away from the reception cell 310 (that is to say facing the outside of the female terminal 300).
  • Each of the first and second electrical housings 322, 323 is thus delimited by the first bump 328, the second bump 324 and the part of the metal strip extending between said first and second bumps 328, 324. It is against the second bump 324 that is intended to be established at least one electrical contact between the stripped core of the electrical conductor, introduced through the access opening, and the metal strip. This electrical contact is made by means of the leaf spring 330. This leaf spring 330 extends, longitudinally, against the portion 327 of the metal strip by which the electrical connection part 320 is attached to the functional part comprising the reception cell 310, as well as in line with the part of the metal strip located between the first bump 328 and the second bump 324 (see figure 7 ).
  • the metal strip also comprises means for connecting the leaf spring 330 to the metal strip. These means are here formed by folded tabs 331 to which the leaf spring 330 can for example be riveted, or in the form of pins around which are anchored corresponding openings of the leaf spring.
  • the electrical connection part 420 is in all respects similar to that of the female terminal 300 according to the third embodiment except that the part of the conductive element delimiting the reception cell 410 and the part of the The conductive element forming the portion 427 beyond which the bumps 428, 424 are formed, are connected to each other via an extension 440.
  • This extension 440 is in one piece with the parts of the conductive element respectively forming the reception cell 410 and the electrical connection part 420.
  • the extension 440 extends perpendicularly to the axis X of extension of the reception cell 410, generally mid- height of the reception cell 410, or even, as clearly shown by the figure 13 , at a height chosen to be closer to the entry mouth into the receiving cell 410 than to a rear end 412 of said receiving cell 410. As shown in the figure 12 , this extension 440 is in further bent laterally to reduce, as much as possible, the distance separating the electrical housing 422 and the reception cell 410 and therefore reduce the lateral bulk of the female terminal 400.
  • the conductive element comprising the functional part forming the reception cell 310; 410 and the electrical connection part 320; 420 is a one-piece piece.
  • the receiving cell 610 is formed by a first part of the conductive element and the electrical connection part 620 is formed by a second part of the conductive element, separated from the first part.
  • the electrical connection part 620 is similar in all respects to the electrical connection part 320 of the female terminal 300 according to the third embodiment, but the metal strip is terminated, beyond the second bump 624, by a secondary cell 640 connection.
  • This secondary socket 640 is intended to receive by engagement with non-removable force a secondary pin 642 carried by the part of the conductive element in which the reception socket 610 is formed.
  • the five embodiments of the socket mechanism 1000; 2000; 3000; 4000; 6000 according to the invention include insulating bases 10; 20; 30 ; 40; 60, containing the female terminals 100; 200; 300; 400; 600 which have just been described in detail, which are quite similar and which differ from each other essentially by their bottom wall 11; 21; 31; 41; 61 respectively.
  • the bottom wall 11; 21; 31; 41; 61 of the insulating base 10; 20; 30 ; 40; 60 extends, at least at the electrical connection part 120; 220; 320; 420; 620 of the terminal, and generally along the rear face of the female terminal 100; 200; 300; 400; 600 received in said insulating base 10; 20; 30 ; 40; 60.
  • the entrance or insertion opening delimited by the edge 13; 23; 33; 43; 63, is provided in the bottom wall 11; 21; 31; 41; 61 of the insulating base, facing the access opening in the electrical housing 122; 222; 322; 422; 622 of said female terminal 100; 200; 300; 400; 600 corresponding, so as to allow the insertion of the stripped core of the electrical conductor 2 in the electrical housing, through the insulating base 10; 20; 30 ; 40; 60.
  • edge 13; 23; 33; 43; 63 delimiting the insertion opening, on the side of the outer face of the insulating base 10; 20; 30 ; 40; 60, is at least partly included in a third plane P3 parallel to the second plane P2 and separated from this second plane P2 by the thickness of the bottom wall 11; 21; 31. 41; 61 at which is formed the insertion opening.
  • the thickness of the bottom wall 21; 31; 41 of base 20; 30 ; 40 is such that the insertion opening forms a true guide duct 229; 329; 429 to insert the electrical conductor 2 into the electrical housing 222; 322; 422 from female terminal 100; 200; 300; 400 corresponding.
  • the guide duct 229; 329; 429 facilitates the insertion of the electrical conductor into the female terminal, without interfering with the natural curvature of the conductor.
  • the distance separating the second and third planes P2, P3, which corresponds to the thickness of the bottom wall in line with the access opening to the electrical housing of the female terminals, is also standardized to guarantee that part of the insulating sheath of the electrical conductor penetrates the bottom wall (see figure 16 ). This ensures the electrical safety of the installer and protects the bare core which is entirely housed in the insulating base.
  • the guide duct 229; 329; 429 is cylindrical, and shaped to have a first section on the side of the outer face of the bottom wall 21; 31; 41 of the insulating base 20; 30 ; 40, followed by a second section lower than the first section, on the side of the inner face of the bottom wall 21; 31; 41 of the insulating base 20; 30 ; 40.
  • the first section is generally identical, except for clearance, to the section of the electrical conductor (insulating sheath and bare core) in front of which is used to supply the female terminal 200; 300; 400 (see figure 16 ), while the second section is globally identical, except for clearance, to the section of the conductive core of the electrical conductor (see figure 16 ).
  • the guide conduit 229; 329; 429 thus shaped with its two sections makes it possible to indicate to the installer the correct penetration of the electrical conductor into the terminal since the optimum penetration is reached when the insulating sheath surrounding the conductive core of the electrical conductor comes into abutment against the second section the guide duct 229; 329; 429 (see figure 16 ).
  • An alternative form of the guide duct is presented at the end of this description.
  • a second inlet or insertion opening is provided in the bottom wall 31; 41 of the insulating base 30; 40 opposite the second access opening in the second electrical housing of the terminal female (also called electrical tapping housing), in order to be able to insert the stripped core of the tapping conductor into this second electrical housing.
  • This second insertion opening has the same properties as the first insertion opening.
  • edge 34; 44 delimiting the second insertion opening, on the side of the outer face of the bottom wall 31; 41 of the insulating base 30; 40 is at least partly included in the third plane P3 (see figure 10 ).
  • the second insertion opening also forms a guide duct to join the access opening of the electrical housing for tapping in the corresponding female terminal.
  • the insulating base 10; 20; 30 ; 40; 60 is also designed to receive a male terminal 700 for electrical connection. Therefore, regardless of the embodiment of the outlet mechanism 1000; 2000; 3000; 4000; 6000, but as shown more particularly by the figure 10 representing the third embodiment of the socket mechanism 3000, in addition to the insertion openings provided in the bottom wall 31 of the insulating base 30 to provide access to the first electrical housing 322 and to the second electrical housing 323 (or electrical housing 323) of each of the female terminals 300 received in said insulating base 30, there is also provided at least one insertion opening, delimited by an edge 36 to give access to an electrical housing 722 of the male terminal 700 (see figure 8 ).
  • This electrical housing 722 is intended to receive the conductive core of an electrical earth conductor to connect said male terminal 700 to earth. In a manner similar to that provided for the female terminals 300, there is also provided insertion opening delimited by an edge 37 to give access to an electrical housing for tapping in the male terminal 700.
  • all the edges 33, 34, 36, 37 delimiting the insertion openings of the insulating base 30 are located in the same third plane P3.
  • the profile of the bottom wall of the insulating base of this mechanism makes it possible to clear, in line with the insertion openings, a space which, advantageously, will be useful to facilitate the wiring operation of the mechanism.
  • This free space will be found in the electrical box 5 in which the current outlet mechanism will be mounted, at the bottom of the latter, where the electrical conductors coming from the network arrive.
  • This free space will advantageously be used to accommodate the curvature naturally adopted by each electrical conductor after its connection to the mechanism, curvature induced between its free end held in the terminal that it supplies and the rest of its length pushed back into the bottom of the electrical box.
  • the installer can thus, after making the electrical connection of the mechanism, easily push back the remaining length of said electrical conductors into the bottom of the electrical box, behind the insulating base, the electrical conductors being free to adopt their natural curvature in the free space located in line with said insertion openings of the bottom wall of the base.
  • the advantageous shape of the insulating base of the socket mechanism according to the invention space is freed not only in line with the electrical housings of the female terminals, but also in line with the electrical housings of the male terminal, to accommodate the natural curvature of all the electrical conductors supplying the mechanism.
  • the bottom wall 11; 31; 41; 61 of the insulating base 10; 30 ; 40; 60 has a hooked part 12; 32; 42; 62 forward of the insulating base 10; 30 ; 40; 60, in the direction of the reception opening 15; 35; 45; 65 closed by trim 8 of the power socket. It is in this unhooked part 12; 32; 42; 62 that are formed the insertion openings to reach the access openings to the electrical housing 122; 322; 422; 622; 722 of each female terminal 100; 300; 400; 600 and male 700.
  • the third plane P3 in which all or part of the edges 13 are included; 33, 34, 36, 37; 43, 44; 63 delimiting the insertion openings is thus offset by a distance D2 with respect to a fourth plane P4, parallel to the third plane P3 and containing the part of the bottom wall 11; 31; 41; 61 of the insulating base 10; 30 ; 40; 60 which is furthest (or rearmost) relative to the reception opening 15; 35; 45; 65 of said insulating base 10; 30 ; 40; 60 (see figure 2 , 7 , 13 And 14 ).
  • the curved portion of the electrical conductor supplying the female terminal is thus housed in the free space delimited between the unhooked part 12; 32; 42; 62 and the rest of the bottom wall 11; 31; 41; 61 of the insulating base 10; 30 ; 40; 60.
  • the curved part of the electrical conductor is housed in the overall volume of the insulating base.
  • the distance D2 separating the third and fourth planes P3, P4 is at least 2 millimeters (mm), that is to say greater than or equal to 2 mm, preferably at least 5 mm.
  • the configuration of the insulating base 30 represented on the figure 10 in which all the insertion openings are provided in the same third plane P3, offset forwards with respect to the fourth plane P4, is possible thanks to a particular shape of the male terminal 700 according to the invention, represented on the figure 8 .
  • This male terminal 700 comprises a conductive element 701 which, on the one hand, is connected to the ground pin 6, and, on the other hand, delimits the electrical housing 722 intended to receive the electrical conductor to establish the electrical contact. between the electrical conductor and the conductive element 701. More precisely, the conductive element 701 forms, on the one hand, a platform 710 on which is crimped the ground pin 6 intended to project into the internal space of the insulating base 30 which will receive the trim 8 (see figure 11 ), and, on the other hand, a metal strip similar in all respects to the electrical connection part 320; 420; 620 female terminals 300; 400; 600 according to the third, fourth and sixth embodiments of the female terminal according to the invention.
  • the electrical housing 722 delimited by this metal strip is accessible from the rear face of the male terminal 700, opposite the earth pin 6, via an access opening delimited by an edge 725 of the conductive element 701.
  • the metal strip also delimits the electrical wiring compartment (not visible on the figure 8 ), accessible via an access opening bounded by an edge (not visible on the figure 8 ) of the conductive element 701, to establish electrical contact between an electrical tapping conductor and the conductive element 701.
  • the conductive core inserted into the electrical housing 722 or the tapping housing of the male terminal 700, via the corresponding access opening, is held there in place by automatic tightening, by means of a leaf spring 730.
  • a disconnect pusher 350 ( figure 10 ), similar to those described for the female terminals, makes it possible to act on the leaf spring 730 when the male terminal 700 is in place in the insulating base 30, to disconnect the electrical conductor inserted in the electrical housing 722.
  • the electrical housing 722 and the tapping housing are offset forwards, in the direction of the platform 710 on which the ground pin 6 is fitted. It is thus possible to define in the male terminal 700 a plane P′2 which is globally parallel to the platform 710 and which contains all or part of the edge 725 delimiting the access opening to the electrical housing 722 and all or part of the edge (not visible) delimiting the access opening to the transplanting housing.
  • the bottom wall 31 of the insulating base 30 is designed to accommodate the male terminal 700 so that its plane P'2 aligns and merges with the second plane P2 of the female terminals 300 (see figure 10 ).
  • the plane P'2 is parallel to the third plane P3 and separated from said third plane P3 by the thickness of the bottom wall 31 of the insulating base 30.
  • a passage opening, delimited by an edge 28, is formed in the bottom wall 21 of the insulating base 20, opposite the outlet opening of the reception cell 210 of the female terminal 200, so that the pin connection of an electrical plug inserted into said reception cell 210 passes through said passage opening to extend, rearwardly, beyond the bottom wall 21 of the insulating base 20 (see figure 4 ).
  • a membrane 29 made of deformable material is capable of deforming without breaking when the connection pin 51 of the electrical plug 50 exerts pressure on it (see figure 4 ).
  • the membrane 29 is made of flexible plastic material, so that it also has electrically insulating properties.
  • the guide duct formed by the insertion opening formed in the bottom wall of the insulating base of the current-taking mechanism is shaped to further facilitate the discharge of the electrical conductor at the rear of the mechanism power outlet.
  • the guide duct 329' has a chamfered part 329A 'which extends obliquely relative to the central axis I of extension of said guide duct 329' (see figure 17 ), which central axis I of extension is perpendicular to the part of the bottom wall 31 of the insulating base 30 in which the guide duct 329' is formed.
  • the central extension axis I of the guide duct coincides with the axis H (see figure 7 ) passing through the center of the access opening to the electrical housing of the connection terminal housed behind said insertion opening.
  • the chamfered portion 329A' extends opposite the disconnect pusher associated with this insertion opening.
  • the chamfered portion 329A' is here provided in the first section of the guide duct 329' which is located on the side of the outer face of the bottom wall 31 of the insulating base 30.
  • This first section of the guide duct 329' is thus oval shape, and of dimensions greater than those of the section of the electrical conductor 2.
  • the edge 33' delimiting the insertion opening which forms this guide duct 329', on the side of the external face of the bottom wall 31 of the insulating base 30, extends over two levels 33A ', 33B', which are here connected by a form of stair step (see figure 15 ).
  • the edge 33' delimiting the insertion opening comprises two parts 33A', 33B' offset from one another along the central axis I of extension of the guide duct.
  • the two levels 33A′, 33B′ of the edge 33′ delimiting the insertion opening could very well be connected continuously, without breaking in the form of a staircase.
  • the guide duct 329' thus configured, with the chamfered portion 329A' and the outer edge 33' which extends over two levels 33A', 33B' can accommodate a greater part of the curved portion 2A of the electrical conductor 2 (see figure 17 ).
  • the size of the electrical conductor 2 connected to the rear of the socket mechanism is thus reduced so that it is easier to insert into the electrical box intended to accommodate this mechanism.
  • This advantageous configuration of the guide duct 329' can of course be applied to any embodiment of the fitting mechanism described above, and to any insertion opening opening into a main electrical housing or for tapping in a male or female electrical connection terminal.
  • this guide duct configuration is very advantageous because it saves space by partially housing the curved portion of the electrical conductor.
  • connection terminals female or male
  • connection terminals can be screw terminals.
  • the socket prefferably includes only two female electrical connection terminals and a ground connection yoke (Germanic type socket called “Schuko”).
  • the socket prefferably of the type to be mounted projecting from a wall, by means of an electrical box to be fixed projecting from said wall.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP22184068.9A 2021-08-04 2022-07-11 Steckdosenmechanismus und entsprechende steckdose Active EP4131659B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2108474A FR3126067B1 (fr) 2021-08-04 2021-08-04 Borne femelle de connexion électrique pour prise de courant, mécanisme de prise de courant et prise de courant associés

Publications (3)

Publication Number Publication Date
EP4131659A1 true EP4131659A1 (de) 2023-02-08
EP4131659C0 EP4131659C0 (de) 2024-03-13
EP4131659B1 EP4131659B1 (de) 2024-03-13

Family

ID=78049380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22184068.9A Active EP4131659B1 (de) 2021-08-04 2022-07-11 Steckdosenmechanismus und entsprechende steckdose

Country Status (5)

Country Link
EP (1) EP4131659B1 (de)
CN (1) CN115706353A (de)
ES (1) ES2976300T3 (de)
FR (1) FR3126067B1 (de)
PL (1) PL4131659T3 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659770U (de) * 1979-10-12 1981-05-21
DE3036545A1 (de) * 1980-09-27 1982-05-27 Fa. Albrecht Jung, 5885 Schalksmühle Schutzkontaktsteckdose
FR3060873A1 (fr) 2016-12-15 2018-06-22 Legrand France Element de connexion electrique muni d’un element de contact

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659770U (de) * 1979-10-12 1981-05-21
DE3036545A1 (de) * 1980-09-27 1982-05-27 Fa. Albrecht Jung, 5885 Schalksmühle Schutzkontaktsteckdose
FR3060873A1 (fr) 2016-12-15 2018-06-22 Legrand France Element de connexion electrique muni d’un element de contact

Also Published As

Publication number Publication date
ES2976300T3 (es) 2024-07-29
CN115706353A (zh) 2023-02-17
EP4131659C0 (de) 2024-03-13
FR3126067A1 (fr) 2023-02-10
FR3126067B1 (fr) 2023-12-15
EP4131659B1 (de) 2024-03-13
PL4131659T3 (pl) 2024-07-22

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