EP1638168A1 - Schraubenlosefederklemme mit zwei Doppeleinführungen - Google Patents

Schraubenlosefederklemme mit zwei Doppeleinführungen Download PDF

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Publication number
EP1638168A1
EP1638168A1 EP04077570A EP04077570A EP1638168A1 EP 1638168 A1 EP1638168 A1 EP 1638168A1 EP 04077570 A EP04077570 A EP 04077570A EP 04077570 A EP04077570 A EP 04077570A EP 1638168 A1 EP1638168 A1 EP 1638168A1
Authority
EP
European Patent Office
Prior art keywords
cage
terminal
disconnecting
tubes
electrical
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.)
Withdrawn
Application number
EP04077570A
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English (en)
French (fr)
Inventor
Christophe Grondin
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.)
Alombard SAS
Original Assignee
Alombard SAS
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 Alombard SAS filed Critical Alombard SAS
Priority to EP04077570A priority Critical patent/EP1638168A1/de
Publication of EP1638168A1 publication Critical patent/EP1638168A1/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • H01R4/4833—Sliding arrangements, e.g. sliding button

Definitions

  • the present invention relates to a connection terminal for electrical equipment such as a socket outlet or a switch for distributing electrical energy.
  • the present invention more particularly relates to a terminal comprising at least four connection devices.
  • connection terminals with or without clamping screw.
  • the screw connection terminals allow a tightening of the electrical conductors ensured by a screw.
  • the tightening of the electrical conductors is provided by means other than a screw.
  • the invention more particularly refers to screwless connection terminals.
  • the screwless terminals generally consist of a metal cage in which is inserted a metal elastic element.
  • the metal cage comprises at least two independent clamping devices for connecting at least two electrical conductors, to meet the requirement of standards in the field.
  • the metal cage thus comprises at least two sleeves collaborating with a blade of the clamping element allowing the insertion of a first electrical conductor into a first sheath and a second electrical conductor into a second sheath, and holding by pinching conductors between the metal blade and the inner face of the sheath. Guiding and locking means of the conductor are implemented on the cage and / or the clamping element to prevent the driver from escaping the sheath.
  • screwless terminal proposing at least two electrical conductor inputs disposed either on the same side of the metal cage, on the two opposite sides of the cage, or on any two faces of the cage. These terminals do not offer more than two connection devices to perform, for example, additional driver subcoupling.
  • the present invention aims to provide a screwless terminal comprising at least four connection devices enclosing a single clamping element of electrical conductors in a small footprint.
  • a screwless terminal for electrical equipment comprising a parallelepiped-shaped cage comprising at least four connecting sleeves each of which can accommodate an electrical conductor, and an elastic element for clamping the electrical conductors inserted into the cage in the terminal, characterized in that the cage is provided with a first pair of parallel and juxtaposed connecting sleeves separated by a recess and arranged opposite a second pair of juxtaposed and parallel sleeves separated by the same recess and in that the clamping element is unique and common to each sleeve and is inserted into the recess of the housing.
  • the cage is in one piece and consists of a U-shaped cross-section whose legs are extended by circular ends facing each other and oriented inside the U to form two tubes, each tube being divided in their middle by an opening receiving a stop belonging to the electrical equipment, each end of the tubes forming a connecting sleeve.
  • each tube is provided on two intermediate zones between its middle and each of its ends of a recess.
  • the clamping element consists of a single piece with open triangular section and cut tip, said triangle being formed of a rectangular base extended by two sides each having a pair of bent elastic tongues. and inclined at an angle close to 45 °, each tongue having at its free end a clamping blade and a disconnecting finger, the clamping element being placed inside the cage of the terminal so that each clamping blade is introduced in the rest position in each recess tubes to pinch the electrical conductor inserted into the sleeve on the blade and that each associated disconnection finger is located outside the two tubes of the cage.
  • the length of the resilient tongues in the rest position allows each blade to penetrate into each recess of a sheath and form an angle of approximately 45 ° with the longitudinal axis of the tube, forming the sleeve, directed towards the center of the tube thus making it easier to introduce an electrical conductor.
  • the screwless terminal is inserted into a suitable housing of a mechanism of an electrical equipment, said housing comprising at least four openings on its side walls, these openings being arranged opposite the ends of the tubes of the cage and being sized to pass an electrical conductor.
  • each disconnecting finger of the clamping element consists of a curved end of greater length than the part constituting the associated clamping blade, said curved end portion cooperating with a finger belonging to an element. disconnector mounted in the housing of the electrical equipment so as to slide perpendicular to the direction of introduction of the electrical conductors and the axis of symmetry of the tubes.
  • the housing of the electrical equipment comprises an access well to the second face of the disconnection element opposite to that in contact with the disconnecting fingers, this second face of the disconnecting element being provided. a notch to accommodate a sharp tool when disconnecting electrical conductors.
  • an immobilizing means holds the screwless terminal in the housing of the electrical equipment (4).
  • the screwless terminal (1) comprises a single-piece cage (10) comprising at least four connecting sleeves (11a, 12a, 11b, 12b) for electrical conductors. and a clamping member (2) inserted in the cage of the terminal (10).
  • the metal cage (10) consists of a parallelepipedal monoblock comprising a front lateral face (13a), a rear lateral face (13b), a lower face (14a), an upper face (14b) and two longitudinal faces (15a, 15b).
  • the monoblock (10) is open on its front face (13a) and its upper face (14b) thus forming a U-shaped cross section.
  • the legs of the U-section corresponding to the longitudinal faces (15a, 15b) are each extended. by circular ends vis-à-vis one another and oriented towards the inside of the U to form two tubes (150a, 150b).
  • Each sleeve surrounds a conduit that can be cylindrical.
  • the cage (10) thus formed in U comprises a recess (16) for receiving a clamping element (2).
  • Each tube (150a, 150b) comprises a lower portion (151a, 151b) facing the recess (16) of the cage (10) and an upper portion (152a, 152b) directed outwardly of the cage (10). .
  • Each end (156a, 157a, 156b, 157b) of the sleeves (11a, 12a, 11b, 12b) is open to receive and guide an electrical conductor (3) (see Figures 4A, 4B and 5) thus forming the inputs of the connection terminal.
  • the sleeves (11a, 12a, 11b, 12b) prevent the electrical conductors from escaping the cage (10).
  • Each sleeve (11a, 12a, 11b, 12b) is provided on the one hand in the middle of its upper part with an opening (155a, 155b) and on the other hand, on two intermediate zones between its middle and each of its ends (156a, 157a, 156b, 157b) of a recess (153a, 154a, 153b, 154b).
  • the clamping element (2) consists of a single metal part (10) with omega-shaped cross-section or open-cut and cut-off triangle.
  • the triangle is formed of a rectangular base (20) whose width is slightly less than the width of the recess (16) of the terminal cage (10), thus allowing the passage of the clamping element (2) in the recess (16).
  • the rectangular base (20) is extended on two opposite sides by a pair of resilient tongues (21a, 22a, 21b, 22b) bent and inclined toward the rectangular base (20) at an angle that may be 45 °.
  • Each elastic tongue (21a, 22a, 21b, 22b) comprises on its free end a clamping blade (210a, 220a, 210b, 220b) and a projecting disconnection finger (211a, 221a, 211b, 221b). ) aligned and separated from each other by a clearance (212a, 222a, 212b, 222b).
  • Each clamping blade (210a, 220a, 210b, 220b) is located on the outermost edge of the rectangular base (20).
  • the clamping blades (210a, 220a, 210b, 220b) are arranged in such a way that they allow penetration into the recesses (153b, 154b in FIG.
  • each clearance (212a, 222a, 212b, 222b) of an elastic tongue (21a, 22a, 21b, 22b) accommodates the edge, directed towards outside, the opening of a sheath receiving the blade associated with said release.
  • the disconnecting fingers (211a, 221a, 211b, 221b) of the tongues (21a, 22a, 21b, 22b) of the clamping element (2) are thus located between the two tubes (150a, 150b FIG. 1) of the cage (10) and protrude slightly from these two tubes (150a, 150b).
  • the metal clamping element (2) makes it possible to clamp and contact the electrical conductors (3) inserted in the connection sleeves (11a, 12a, 11b, 12b) and thereby make the electrical contact between these same electrical conductors.
  • the screwless terminal (1) can be incorporated in an electrical apparatus (4).
  • the electrical equipment (4) comprises a base (40) and electrical elements (41) mounted on the base (40).
  • the base (40) comprises a portion similar to a base (400), a casing (401) of parallelepipedal shape molded on the base (400) and having walls (402a, 402b) protruding placed perpendicular to the surface of the base (400) and forming a chamber or housing (403).
  • the chamber (403) is substantially identical in size to the dimensions of the terminal (1) and can accommodate the latter.
  • the projecting walls (402a, 402b) of the chamber (403) placed opposite the openings of the sleeves (11a, 12a, 11b, 12b) of the terminal (1) each comprise two openings (404a, 404b) being circular and being placed opposite the ends (156a, 157a, 156b, 157b) of the sleeves (11a, 12a, 11b, 12b) for inserting an electrical conductor (3).
  • the openings of the walls (404a, 404b) are of equal or larger dimensions to the ends (156a, 157a, 156b, 157b) of the tubes (150a, 150b).
  • the electrical equipment (4) comprises a complementary element (405) for holding the screwless terminal (1) in the chamber (403) of the cage (40) of the electrical equipment (4).
  • the base (40) comprises in the bottom of the chamber (403) and near the middle of the bottom, an immobilizing means for immobilizing the cage assembly (10) and clamping element (2). ), having bosses (409), which are shown in Figure 5 in number two.
  • the cage (10) and the clamping member (2) associated each comprise two holes (17, 23 a single hole is shown) for receiving the bosses (409) of the base (400 ).
  • the holes (17) of the cage (10) pass through the lower face (13a) near the middle of this face.
  • the holes (23) of the clamping element (2) pass through the rectangular base (20) and are positioned in such a manner that they face the holes (17) of the cage (10) when the clamping element (2) is inserted into the recess (16) of the cage (10).
  • the inner face (420) of the complementary element (405) of the electrical equipment (4), directed towards the chamber (401) and opposite the openings (155a, 155b) of the sleeves (150a, 150b ), comprises at least two stops (a single abutment 406 being shown) projecting which may be of parallelepipedal shape and placed so that they are each accommodated in an opening (155a, 155b) located on the middle of the upper part ( 152a, 152b) of each tube (150a, 150b) of the cage (10) of the screwless terminal (1) (see Figures 1 and 2).
  • a disconnecting element (6) is mounted in a hole (407) of the complementary element (405) of the electrical equipment (4) so as to slide perpendicularly to the insertion direction of the electrical conductors (3) and to the axis of symmetry of the tubes (150a, 150b).
  • This orifice (407) passes through the complementary element (405) of the electrical equipment (4) supporting the electrical elements (41).
  • Each disconnecting finger (211a, 221a, 211b, 221b) consists of a curved end of greater length than the part constituting the associated clamping blade (210a, 220a, 210b, 220b), said part of curved end cooperating with a beveled finger (62a, 62b) belonging to the disconnecting element (6).
  • the push button (6) releases the blades (210a, 220a, 210b, 220b) obstructing the conduit ducts (150a, 150b).
  • the pushbutton (6) may be of parallelepipedal shape comprising a lower part (60) directed towards the terminal (1) and an upper part (61) on the opposite face.
  • the width of the push button (6) is of dimension less than or equal to the free space between the two sleeves (150a, 150b), thus allowing the passage of the push button (6) between the two sleeves (150a, 150b).
  • Two protuberances or fingers (62a, 62b) extend the width of the lower portion (60) of the pushbutton (6) perpendicularly to the same portion and are each supported against a pair of fingers disconnecting device (211a, 221a, 211b, 221b) from the clamping element (2).
  • the orifice (407) of the lid (405) comprises a guide means such as a guide blade (408) extending around the orifice (407) and towards the chamber (403) of the base (40) .
  • This slat (408) is shorter than the length of the protuberances (62a, 62b) of the push button (6) and allows to guide vertically the push button (6) when a user presses it.
  • the protuberances (62a, 62b) of the push button (6) comprise on their free end a shoulder (63a, 63b) directed towards the outside of the push button (6) and resting on the free end of the guide blade.
  • the face (61) of the disconnecting member (6) is provided with a notch (64) for accommodating a tool, such as a screwdriver, for pressing the pushbutton (6).
  • connection sleeves 11a, 12a, 11b, 12b
  • the withdrawal of an electrical conductor is obtained by a combined action on the push button (6) and the withdrawal of the electrical conductor out of the duct of the sleeve (11a, 12a, 11b, 12b).
  • the latter returns in its place between the guide tongue (408) of the lid (405) of the electrical apparatus (4) and the disconnecting fingers (211a, 221a, 211b , 221b) of the clamping element (2) under the elastic action of the tongue (21a, 22a, 21b, 22b) which returns to its rest position.
  • the electrical conductors (3) remaining in the connection terminals are again blocked in the ducts by the blades (210a, 220a, 210b, 220b) of the resilient tongues (21a, 22a, 21b, 22b).
  • the screwless terminal can, when serving as a connection terminal of electrical equipment of the kind plug socket or switch, allow to connect the electrical conductors regardless of their direction of entry into the box in which said apparatus is installed and to limit the unnecessary lengths of conductors.
  • Electrical equipment with such terminals can advantageously allow the extension of the electrical circuit by what is commonly called a transplanting and regardless of the input position of each conductor.
  • the screwless terminal (1) can also be used on junction terminal blocks, circuit breakers or switches of any type.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP04077570A 2004-09-16 2004-09-16 Schraubenlosefederklemme mit zwei Doppeleinführungen Withdrawn EP1638168A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04077570A EP1638168A1 (de) 2004-09-16 2004-09-16 Schraubenlosefederklemme mit zwei Doppeleinführungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04077570A EP1638168A1 (de) 2004-09-16 2004-09-16 Schraubenlosefederklemme mit zwei Doppeleinführungen

Publications (1)

Publication Number Publication Date
EP1638168A1 true EP1638168A1 (de) 2006-03-22

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EP04077570A Withdrawn EP1638168A1 (de) 2004-09-16 2004-09-16 Schraubenlosefederklemme mit zwei Doppeleinführungen

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EP (1) EP1638168A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3002088A1 (fr) * 2013-02-08 2014-08-15 Eur Ohm Contact electrique pour prise de courant
EP2993734A1 (de) * 2014-09-04 2016-03-09 Bticino S.p.A. Elektrische federanschlussklemme

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT267642B (de) * 1966-02-08 1969-01-10 Busch Jaeger Duerener Metall Federklemme für elektrische Installationsgeräte
DE2349614A1 (de) * 1973-10-03 1975-04-10 Wago Kontakttechnik Gmbh Schraubenlose anschluss- und/oder verbindungsklemme
WO1992017917A1 (en) * 1991-04-01 1992-10-15 Kevin Hunter Waldock Electrical connector
DE19932561A1 (de) * 1999-07-13 2001-02-01 Aloys Mennekes Anlagengmbh & C Steckdose, insbesondere mehrpolige Steckdose

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT267642B (de) * 1966-02-08 1969-01-10 Busch Jaeger Duerener Metall Federklemme für elektrische Installationsgeräte
DE2349614A1 (de) * 1973-10-03 1975-04-10 Wago Kontakttechnik Gmbh Schraubenlose anschluss- und/oder verbindungsklemme
WO1992017917A1 (en) * 1991-04-01 1992-10-15 Kevin Hunter Waldock Electrical connector
DE19932561A1 (de) * 1999-07-13 2001-02-01 Aloys Mennekes Anlagengmbh & C Steckdose, insbesondere mehrpolige Steckdose

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3002088A1 (fr) * 2013-02-08 2014-08-15 Eur Ohm Contact electrique pour prise de courant
EP2993734A1 (de) * 2014-09-04 2016-03-09 Bticino S.p.A. Elektrische federanschlussklemme

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