EP3134942B1 - Borne de connexion de conducteur - Google Patents

Borne de connexion de conducteur Download PDF

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Publication number
EP3134942B1
EP3134942B1 EP15720648.3A EP15720648A EP3134942B1 EP 3134942 B1 EP3134942 B1 EP 3134942B1 EP 15720648 A EP15720648 A EP 15720648A EP 3134942 B1 EP3134942 B1 EP 3134942B1
Authority
EP
European Patent Office
Prior art keywords
conductor
clamping
clamping leg
free
base section
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.)
Active
Application number
EP15720648.3A
Other languages
German (de)
English (en)
Other versions
EP3134942A1 (fr
Inventor
Henry Ziesemann
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.)
Wago Verwaltungs GmbH
Original Assignee
Wago Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Publication of EP3134942A1 publication Critical patent/EP3134942A1/fr
Application granted granted Critical
Publication of EP3134942B1 publication Critical patent/EP3134942B1/fr
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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • 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
    • H01R4/4846—Busbar details
    • H01R4/4848—Busbar integrally formed with the 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
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool

Definitions

  • the invention relates to a conductor terminal with at least one conductor clamping element, which is integrally formed from a sheet metal part and a base portion, an adjoining the base portion spring bow and a subsequent to the spring bow and the base portion opposite clamping leg, wherein the free terminal end of the clamping leg a clamping edge forms an electrical conductor for clamping and wherein a terminal contact exposed from the base portion and is bent out of the plane of the base portion in a direction opposite to the clamping leg direction.
  • Such conductor connection terminals serve for clamping an electrical conductor and producing an electrically conductive connection between the electrical conductor and a device which is directly or indirectly electrically conductively connected to the connection contact.
  • the conductor terminal may e.g. be soldered with their connection contacts on a circuit board.
  • EP 1 947 738 A1 shows a conductor terminal and a leaf spring contact thereto, which is installed in an insulating material.
  • the insulating housing has a projecting from the back in the conductor insertion opening of the insulating housing overload protection bar, which is part of the insulating material.
  • EP 0 682 385 B1 discloses an electrical connector with an insulating housing and a built-in insulating housing conductor clamping element which is formed integrally from a sheet metal part.
  • a clamping leg On one side of the base portion, a clamping leg is bent over a spring bow, which extends obliquely away from the base portion.
  • a terminal contact is bent downwards opposite to the extension direction of the clamping leg, so that the terminal contact protrudes from the insulating material in the installed state.
  • a material flap is exposed from the base portion and bent out in the direction of the clamping leg.
  • This material flap forms an overload stop for the clamping leg, so that the clamping leg abuts the overload stop when moving in the direction of the base section. In this way, excessive compression of the spring bow, including the spring properties, is avoided.
  • the overload stop also serves as a stop for a mounting tool, so that the conductor clamping element can be guided into the interior of the insulating housing and wedged there.
  • FR 1 562 716 A4 discloses a conductor terminal with an integrally formed conductor clamping element.
  • the conductor clamping element in this case has a clamping leg, which is adapted for clamping an electrical conductor to a busbar which leads out of a housing of the conductor connection terminal. Furthermore, an end portion of the conductor clamping element forms an overload stop, wherein the clamping leg abuts when actuated against the overload stop.
  • WO 2012/032097 A1 shows a conductor terminal with a clamping element, which is formed from a rotated spring, wherein a free end of the rotated spring is designed for clamping an electrical conductor to a terminal contact.
  • the connection contact via a Opening and a contact strip are connected to the outside.
  • GB 1 528 993 A discloses a conductor terminal, wherein a terminal contact is inserted as a pin in an opening of the conductor terminal. Furthermore, an overload stop is provided by a tongue on the conductor terminal.
  • US 6 074 242 A describes a conductor terminal with a clamping element, wherein a terminal contact is bent out of the clamping element. In this case, the electrical conductor is contacted electrically at a free end of the clamping element.
  • DE 87 09 226 U1 shows an electrical connection terminal with a Isolierstoffgeophuse, a contact frame and a contact spring. Depending on the diameter of an inserted conductor, one or two legs of the contact spring are used to produce a non-positive clamping connection.
  • the contact spring also has a projecting from a base portion of the contact spring earthing tongue.
  • the end section of the base section opposite the spring bow extends from the plane defined by the base section in the direction of the clamping leg and forms an overload stop for the clamping leg, which prevents further displacement of the clamping leg down towards the base portion.
  • the overload stop is thus formed of a material flap, which extends the base portion opposite to the spring bow and bent out of the plane of the base portion. This bent out of the plane of the base portion free end portion of the sheet metal part is bent in the direction clamping leg and has a length adapted to prevent excessive displacement of the clamping leg in the direction of the base portion. For this purpose, this end portion forms a stop for the clamping leg.
  • the conductor clamping element is integrally formed from a sheet metal part. By “integral” is meant that the base portion, the spring bow and the clamping leg as well as the from the end portion, which is opposite to the spring bow, formed overload stop free of joints (free of joints) of a part.
  • the conductor clamping element can be made very compact and material-saving in this way.
  • the overload stop is executable with sufficient length and can be aligned with the free terminal end.
  • the terminal contact is exposed from the base portion and bent out of the plane of the base portion in opposite direction to the clamping leg. This leaves a slot in the base section. Be the side wall limiting the slot no longer required for current conduction, so that is not affected by the bending out of a material lobe from the base portion of the current-carrying cross section and thus the current transfer resistance.
  • connection contact is bent out of the base section in a region adjacent to the transition of the base section to the spring arch. Then the current paths from the free terminal end to the terminal contact are kept as short as possible.
  • the free end of the overload stop forming end portion is bent in the direction of the free end of the clamping leg.
  • the free end of the end stop forming the overload stop is tapered. This ensures that the overload stop forming free end portion is sufficiently stable due to its initially greater width.
  • the abutment surface for the clamping leg is adapted to the width of the free terminal end and possibly even further reduced. Furthermore, the assembly of the conductor clamping element is simplified in the insulating material by the taper.
  • the free clamping end of the clamping leg is bent in a preferred embodiment of the plane defined by the clamping leg plane in a direction away from the base portion.
  • the free terminal end is steeper compared to the adjoining region of the clamping leg steeper to the conductor axis of an inserted into a conductor insertion opening and placed above the conductor clamping element electrical conductor out.
  • the end face of the free terminal end of the clamping leg extends at an angle in the range of 65 ° to 85 ° to the plane of the clamping leg in the region of the free terminal end is particularly advantageous.
  • the end face is not perpendicular from the plane of the clamping leg, but is obliquely formed for this purpose. In this way, an even sharper edge contact is provided, as with an end face, which is provided at a simple rectangular sheet metal part at the free terminal end.
  • the at least one conductor clamping element is preferably installed in an insulating material housing to form a conductor terminal.
  • the insulating housing has at least one leading to an associated free terminal end of a clamping leg conductor insertion opening.
  • a variant is conceivable in which a plurality of independent conductor clamping elements are installed side by side in an insulating material to form a multi-pole conductor terminal. It is also conceivable, however, that a single conductor clamping element is provided in which protrude from a common base portion respectively juxtaposed clamping legs and associated overload stops on the free end portion. This corresponds analogously to a variant with a plurality of conductor clamping elements, which themselves Share a common base portion or their base sections are connected together. In each case, a conductor insertion opening is aligned with an associated clamping leg.
  • a plurality of electrical conductors can be side by side inserted into the insulating material and electrically conductively connected to each other by the conductor clamping element.
  • at least one aligned on an associated clamping leg test opening is provided in the insulating housing.
  • the test opening is in the interior of the insulating material in a relation to the plane of the insulating material on the outside in the area adjacent to the test opening area oblique surface.
  • This inclined surface on an inner side of the insulating housing adjacent to the test opening prevents bumping and coming out of curved conductors or conductor ends of a stranded electrical conductor and an abutment and emergence of obliquely inserted electrical conductors.
  • test opening can be used not only for checking the electrical potential at the conductor clamping element, but alternatively or in addition to opening the clamping point formed by the conductor clamping element for an electrical conductor by displacing the clamping leg in the direction of base portion by means of an inserted into the test opening operating tool.
  • a test opening according to the present invention is thus an opening leading to the clamping leg regardless of its purpose and in any case also includes a release opening.
  • the test opening is preferably arranged laterally offset from a conductor insertion axis predetermined by the conductor insertion opening, on which an electrical conductor inserted into the insulating housing and clamped on the clamping leg is positioned.
  • This lateral offset is in particular a use of the test opening as a release opening for an operating tool for opening a clamping point formed by the conductor clamping element possible.
  • a material tab may extend beyond the length of the free terminal end. This material flap is positioned below the test opening in this embodiment. With the aid of such an extended material lug, the test opening can be moved further into the rear region of the insulating material housing. The actuation of the conductor clamping element takes place via an inserted into the test opening actuating tool which acts on the material lables. The lever arm is enlarged in this way and improves the operation of the conductor clamping element.
  • the sheet metal part of the at least one conductor clamping element can be made of a spring metal sheet material which is e.g. can be plated with copper, be formed.
  • a spring plate with resilient properties is provided in particular by a spring steel.
  • chromium-containing alloys are particularly suitable.
  • the sheet metal part is formed from a copper alloy.
  • copper is less elastic than spring steel, it has the disadvantage of being easier to plastically deform. But it is more electrically conductive compared to spring steel and provides lower current transfer resistances. With the help of bent out of the free end of the sheet metal part overload stop the plastic deformation of the conductor clamping element formed from a copper alloy can be effectively prevented, so that the conductor clamping element according to the invention is particularly suitable for sheet metal parts made of copper alloy.
  • FIG. 1 shows a perspective view of a conductor terminal 1, which has an insulating housing 2 and built-in conductor clamping elements 3.
  • a conductor clamping element 3 for clamping the electrical conductor 4 shown on the left side can be seen, in an associated conductor insertion opening 5 on the front side of the insulating material 2 is guided in the insulating material 2 to an associated conductor clamping element 3.
  • This terminal contact 6 is designed and provided in the illustrated embodiment as a soldering pin, inserted into a bore of a board and there with a conductor track to be soldered on the one board.
  • connection contacts 6 for example surface mount solder contacts (SMD).
  • conductor connection terminals 1 are likewise conceivable in which no connection contact 6 protrudes from the insulating material housing 2.
  • a plurality of juxtaposed conductor clamping elements 3 may be electrically conductively connected to each other in order to connect electrically conductive with each other in the insulating 2 introduced and clamped to each associated conductor clamping elements 3 electrical conductor 4.
  • Such a conductor terminal 1 would then be a so-called box terminal or connection terminal.
  • the insulating housing 2 is closed in the rear part with a cover 7.
  • the lid 7 is integrally connected via a film hinge 8 with the main body of the insulating housing 2. With the help of the lid 7, the at least one conductor clamping element 3 can be inserted into the main body of the insulating housing 2 and mounted there.
  • test openings 9 are introduced on the upper side of the insulating housing 2 or of the main body. It is clear that the test opening 9 with respect to the through the associated conductor insertion opening 5 and the conductor insertion axis on which a plugged into the insulating 2 and clamped to an associated conductor clamping element 3 electrical conductor 4 is positioned laterally offset.
  • the test opening 9 thus leads into a region of the conductor clamping element 3, which is adjacent to the stripped free end of an inserted electrical conductor 4 and the associated free terminal end of a clamping leg of the conductor clamping element 3. With the aid of this test opening 9, the electrical potential at the associated conductor clamping element 3 can be measured. Additionally or alternatively, the test opening 9 can be used as an actuating opening to open the clamping point formed by the conductor clamping element 3 for an electrical conductor 4 and to allow removal of a clamped electrical conductor 4.
  • FIG. 2 Leaves the wire connection terminal 1 off FIG. 1 recognize in the plan view.
  • the test openings 9 lead to an associated conductor clamping element 3 in the interior of the main body of the insulating housing 2.
  • section lines BB along the conductor insertion axis recognizable, on which a plugged into the insulating 2 and positioned at an associated conductor clamping element 3 electrical conductor 4 is positioned. Furthermore, the section CC can be seen parallel to this conductor insertion axis, which leads through a test opening 9.
  • FIG. 3 leaves a side sectional view of the conductor terminal 1 from Figures 1 and 2 in section BB, that is, to recognize along the conductor insertion axis.
  • an electrical conductor 4 is inserted into the associated conductor insertion opening 5 of the insulating housing 2.
  • a conductor clamping element 3 is provided in the interior of the insulating material housing 2 for each electrical conductor 4 to be connected, ie for each conductor insertion opening 5.
  • the conductor clamping element 3 is in one piece formed from a sheet metal part and has a base portion 10 which rests on the bottom of the insulating housing 2.
  • the base section 10 is adjoined by a spring bow 11, which merges into a clamping leg 12 extending obliquely away from the base section 10.
  • the free terminal end 13 of the clamping leg is further bent away from the base portion 10 in the direction of conductor insertion axis and electrical conductor 4 in the clamped state or in the direction of the top of the insulating housing 2 opposite from the bottom of the insulating housing 2 and forms a terminal point for an electrical conductor to be clamped. 4 It is clear that the sharp edge at the free terminal end 13 wedges into the stripped end of the electrical conductor 4 and thus secures the electrical conductor 4 from being pulled out.
  • the free end of the base portion 10 is bent upwards in the direction clamping leg 12 and electrical conductor 4 in the clamped state or top of the insulating housing 2.
  • This the spring bow 11 opposite end portion 14 forms an overload stop for the clamping leg 12 and is for this purpose on the clamping legs 12 aligned so that it abuts the free end of the end portion 14 when the clamping leg 12 is displaced towards the base portion 10, while the nip for the electrical conductor 4 is sufficiently open.
  • the overload stop already acts in a position of the clamping leg 12, in which the free terminal end 13 of the clamping leg 12 approximately at the lowest conductor level (dashed line in FIG Fig. 3 ) is in the direction of the base portion 10, which is defined by the radius or the position of the cross section of the conductor insertion opening 5 in the transition to the interior of the insulating housing 2. This radius determines how far an electrical conductor 4 can be displaced in the direction of the base section 10 and limits the maximum cross section of the stripped end of an electrical conductor 4 to be connected.
  • the end stop 14 forming the overload stop is bent at its free end in the direction of the free clamping end 13 of the clamping leg 12.
  • the free end of the end portion 14 is thus bent in the direction clamping leg or in the direction of conductor insertion opening 5 of the insulating housing 2 in the installed state of the conductor clamping element 3 and in the direction of spring bow 11. This ensures that the conductor clamping element 3 has the largest possible length and thus a good footing on its base portion 10 and a sufficient length for the terminal contact 6 and yet forms an overload stop for the clamping leg 12.
  • FIG. 4 leaves the conductor connection terminal 1 from the FIGS. 1 to 3 in the section CC detect that leads parallel to the conductor insertion axis through a test opening 9 therethrough.
  • an electrical conductor 4 is inserted into the associated conductor insertion opening 5 and clamped to the associated conductor clamping element 3.
  • the width of the clamping leg 12 may be greater than the cross section of the electrical conductor to be clamped 4 and preferably greater than the smallest diameter of the conductor insertion opening 5, so that the free terminal end 13 laterally next to the stripped free end of the electrical Ladder 4 sticks out.
  • the center of the conductor clamping element 3 can also be arranged offset laterally with respect to the conductor insertion opening 5 or the conductor insertion direction.
  • the test opening 9 is aligned with this laterally projecting portion of the free terminal end 13 and aligned therewith.
  • a test tool can be guided laterally next to a clamped electrical conductor 4 past the clamping leg 12 and its free terminal end 13, on the one hand to measure electrical potential, which may be applied to the clamping element 3 and on the other hand formed by the conductor clamping element 3 clamping point for removal of the electrical conductor 4 to open.
  • an actuating tool such as, for example, a rod, a screwdriver or the like, the clamping leg 12 can be displaced in the direction of the base section 10.
  • an overload stop is provided. This is formed from the free end portion 14 of the base portion 10 opposite to the spring bow 11 which is bent in the direction of clamping legs 12 and in particular in the direction of the free terminal end 13 of the clamping leg 12 opposite to the extension direction of the connection contacts 6.
  • the lid 7 of the insulating housing 2 is latched with a latching lug 15 at a latching opening 16 at the bottom of the insulating housing 2.
  • the locking lug 15 dips into the latching opening 16 and is secured against unintentional opening in a crosspiece 17 delimiting the latching opening 16 of the insulating material housing.
  • connection contact 6 is provided offset from the first connection contact 6, the also, now led out in the area adjacent to the lid 7 on the underside of the insulating housing 2.
  • This connection contact is part of a further conductor clamping element 3, which is provided in addition to the visible conductor clamping element 3 for clamping a further electrical conductor 4, which can be introduced into an associated further conductor insertion opening 5 next to the first conductor insertion opening 5.
  • multi-pole conductor connection terminals 1 can be realized, in which the connection contacts 6 are offset alternately.
  • the handling is improved and sufficient distances of the individual terminals 6 ensures each other.
  • the conductor terminal 1 can be very mechanically fixed to a printed circuit board by soldering.
  • FIG. 5 lets a sketch of a conductor clamping element 3 in perspective view recognize.
  • the conductor clamping element 3 is integrally formed from a single sheet metal part.
  • a copper alloy for the sheet metal part is suitable for this purpose.
  • a copper alloy offers better current carrying properties than spring steel and has lower current transfer resistance.
  • the spring properties of a copper alloy are not as good as the spring properties of spring steel, which is formed in particular of a chromium alloy. Therefore, in a sheet metal part made of a copper alloy to ensure that the clamping leg 12 and in particular the spring bow is deflected only limited and not plastically deformed. In this way, it must be ensured that the resilient properties of the conductor clamping element 1 are preserved.
  • the terminal contact 6 is exposed from the base portion 10. This can be done by free cutting or free punching of the terminal contact 6 from the sheet metal part in the still unbent state. In the base portion 10 then remains a slot 18 which is bounded by two side webs. A portion of the material of the base portion 10 is thus used to form the terminal contact 6.
  • the terminal contact 6 may have at least one bend 19 to secure the conductor terminal 1 and the conductor clamping element 3 without soldering for better handling in a bore of a printed circuit board.
  • the free clamping end 13 with respect to the plane which is spanned by the clamping leg 12 in the region of the transition to the spring bow 11 to the free terminal end 13 upwards, i. is bent away from the base portion 10.
  • the free terminal end 13 is presented in the direction of conductor insertion axis or electrical conductor 4 and the angle between the top of the free terminal end 13 and a clamped electrical conductor 4 in comparison to the angle of the clamping leg 12 increases.
  • the normative conductor holding forces are improved (increased) compared to a solution without such a kink.
  • locking elements 20 are provided in the form of protruding locking lugs or detent recesses. In this way, the conductor clamping element can be caulked in the insulating housing 2 or held in a form-fitting and secure position. In the area of the spring bow 11, the exposed terminal contact 6 ensures a secure position.
  • these locking elements 20 can then be provided in the area of the spring bow 11 on the base section 10.
  • FIG. 6 leaves a side view of the Leitererklemmelements 3 FIG. 5 recognize. It becomes clear that the end section 14 exposed from the base section 10 is aligned with the free clamping end 13 to form an overload stop so that the free clamping end 13 pushes towards the base section 10 on displacement of the clamping leg 12 on the end face of the exposed end section 14.
  • the free terminal end expires in an end face S, which is not aligned as usual at an angle of 90 ° to the plane of the free terminal end 13. Rather, this end face S is inclined to form an angle to a clamping plane K, which is parallel to the plane of the base portion 10 and on which the sharp edge of the free terminal end 13 is in the illustrated rebounded state of the clamping leg 12.
  • the angle ⁇ between this clamping plane K and the plane spanned by the end face S is not above a vertical end face at about 40 °, but this is increased by at least 10 °.
  • the angle ⁇ is preferably about 50 ° to 70 ° and more preferably about 68 ° + - 5 °.
  • FIG. 7 lets a side sectional view in section BB of the conductor terminal 1 of the FIGS. 1 to 4 Detect without plugged in electrical conductor.
  • the bent end portion 14 opposed to the spring bow 11 forming the overload stop lies with its free end slightly below a plane E which is closest to the base portion 10 through the conductor insertion aperture 5 with its smallest diameter spanned inside surface and which is parallel to the plane of the base portion 10.
  • the free end of the end portion 14 is spaced approximately the thickness of the free terminal end 13 of the plane E.
  • a further displacement of the clamping leg 12 down in the direction of base portion 10 is not required to open a nip. It is thus ensured that the clamping leg 12 and the adjoining spring bow 11 is displaced only as much as absolutely necessary. This prevents unfavorable plastic deformation and excessive stress on the conductor clamping element 3.
  • FIG. 8 Leaves the wire connection terminal 1 off FIG. 7 in the section CC detect that leads through the test opening 9 therethrough. It is clear that the test opening 9 in the interior of the insulating housing 2 merges into an inclined surface 21. Compared to the plane at the top of the insulating housing 2, in which the test opening 9 is introduced, the test opening 9 in the interior of the insulating housing 2 thus runs in an oblique surface 21 in this respect. Accordingly, the conductor insertion opening 5 defines a conductor insertion axis, which runs parallel to the plane defined by the base portion 10 surface. Also with respect to this conductor insertion axis, the inclined surface 21 is inclined.
  • test opening 9 is aligned with the free terminal end 13 of the clamping leg 12 and leads to this free terminal end 13.
  • FIG. 9 allows a perspective view of the previously described conductor terminal 1 with plugged test or release tool 22 recognize.
  • This test or release tool is inserted from the top of the insulating material 2 in an associated test opening 9. This can be used to measure whether an electrical potential is applied to the conductor clamping element 3. But it can also be opened only by the clamping legs 12 formed clamping point for clamping an electrical conductor 4 by the clamping leg 12 is displaced towards the base portion 10.
  • FIG. 9 shows a side sectional view of the conductor connection terminal 1 from FIG. 9 with the test and release tool 22 inserted. It is clear that a rod-shaped end 23 of the test or release tool 22 abuts on the free terminal end 13 and this displaced by the action of force in the direction of the base portion 10. Here, the free terminal end 13 abuts against the bent end portion 14 of the base portion 10. In this way, an overload stop is provided which prevents a further displacement of the clamping leg 12 downwards in the direction of the base section 10.
  • FIG. 11 shows a further embodiment of a conductor clamping element 3, in which a connection contact 6 is exposed from the base section 10 leaving two parallel webs and is bent out of the plane of the base section 10.
  • a connection contact 6 is exposed from the base section 10 leaving two parallel webs and is bent out of the plane of the base section 10.
  • an actuating tab 25 which bent out obliquely from the plane of the adjacent free terminal end 13 is.
  • the actuating tab 25 protrudes beyond the free terminal end 13 and provides an actuating surface for acting with an actuating tool or with an actuation lever movably mounted in a surrounding insulating housing.
  • the free end of the end portion 14 is in turn bent in the direction of the free terminal end 13 and has adjacent to the free terminal end 13 a stop tab 26 to form an overload stop for the clamping leg 12.
  • the end of the clamping portion 14 is shortened in the width direction of the end portion 14 adjacent to the stop tab 25 to form a pocket 27 into which the operating tab 25 can dip.
  • the end face of the clamping end 13 can also form an overload stop for the actuating lug 25 in the region of the pocket 27.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Clamps And Clips (AREA)

Claims (11)

  1. Borne de connexion de conducteur (1) comprenant au moins un élément de borne de conducteur (3) qui est formé d'un seul tenant à partir d'une pièce en tôle et comporte une partie de base (10), un arc de ressort (11) se raccordant à la partie de base (10) et une branche de borne (12) se raccordant à l'arc de ressort (11) et faisant face à la partie de base (10), dans laquelle l'extrémité de borne libre (13) de la branche de borne (12) forme une arête de borne pour le raccordement d'un conducteur électrique (4), et dans laquelle un contact de connexion (6) est découvert à partir de la partie de base (10) et est recourbé hors du plan de la partie de base (10) dans un sens opposé à la branche de borne (12), caractérisée en ce qu'une partie d'extrémité (14), opposée à l'arc de ressort (11), de la partie de base (10) s'étend à partir du plan défini par la partie de base (10) en direction de la branche de borne (12) et forme une butée de surcharge pour la branche de borne (12), laquelle butée empêche un déplacement supplémentaire de la branche de borne (12) vers le bas en direction de la partie de base (10).
  2. Borne de connexion de conducteur (1) selon la revendication 1, caractérisée en ce que le contact de connexion (6) est recourbé hors de la partie de base (10) dans une région adjacente à la transition de la partie de base (10) vers l'arc de ressort (11) ou dans la région de la racine de ressort.
  3. Borne de connexion de conducteur (1) selon l'une des revendications précédentes, caractérisée en ce que l'extrémité libre de la partie d'extrémité (14) formant la butée de surcharge est courbée en direction de l'extrémité libre de la branche de borne (12).
  4. Borne de connexion de conducteur (1) caractérisée en ce que l'extrémité libre de la partie d'extrémité (14) formant la butée de surcharge est rétrécie.
  5. Borne de connexion de conducteur (1) selon l'une des revendications précédentes, caractérisée en ce que l'extrémité de borne libre (13) de la branche de borne (12) est courbée à l'écart du plan défini par la branche de borne (12) dans une direction à partir de la partie de base (10).
  6. Borne de connexion de conducteur (1) selon l'une des revendications précédentes, caractérisée en ce que la surface frontale de l'extrémité de borne libre (13) de la branche de borne (12) s'étend suivant un angle (γ) dans la plage de 65° à 85° par rapport au plan de la branche de borne (12) dans la région de l'extrémité de borne libre (13).
  7. Borne de connexion de conducteur (1) selon l'une des revendications précédentes, caractérisée en ce que ledit au moins un élément de borne de conducteur (3) est intégré dans un boîtier en matériau isolant (2), le boîtier en matériau isolant (2) comportant au moins une ouverture d'introduction de conducteur (5) menant jusqu'à une extrémité de borne libre (13) associée d'une branche de borne (12).
  8. Borne de connexion de conducteur (1) selon la revendication 7, caractérisée en ce qu'au moins une ouverture de contrôle (9) orientée vers une branche de borne (12) associée est prévue dans le boîtier en matériau isolant (2), et en ce que l'ouverture de contrôle (9) se prolonge, dans l'espace intérieur du boîtier en matériau isolant (2), dans une surface inclinée (21) sur le côté extérieur par rapport au plan de la paroi/surface du boîtier en matériau isolant (2) dans la région adjacente à l'ouverture de contrôle (9).
  9. Borne de connexion de conducteur (1) selon la revendication 8, caractérisée en ce que l'ouverture de contrôle (9) est décalée latéralement par rapport à un axe d'introduction de conducteur prédéfini au niveau de l'ouverture d'introduction de conducteur (5), axe sur lequel est positionné un conducteur électrique (4) enfiché dans le boîtier en matériau isolant (2) et raccordé à la branche de borne (12).
  10. Borne de connexion de conducteur (1) selon l'une des revendications 7 à 9, caractérisée en ce qu'une languette de matériau s'étend au-delà de la longueur de l'extrémité de borne libre (13) près de l'extrémité de borne libre (13) de la branche de borne (12), la languette de matériau étant disposée en dessous de l'ouverture de contrôle (9).
  11. Borne de connexion de conducteur (1) selon l'une des revendications précédentes, caractérisée en ce que la pièce en tôle dudit au moins un élément de borne de conducteur (3) est formée à partir d'un alliage de cuivre.
EP15720648.3A 2014-04-23 2015-04-23 Borne de connexion de conducteur Active EP3134942B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202014101915.4U DE202014101915U1 (de) 2014-04-23 2014-04-23 Leiteranschlussklemme
PCT/EP2015/058812 WO2015162210A1 (fr) 2014-04-23 2015-04-23 Borne de connexion de conducteur

Publications (2)

Publication Number Publication Date
EP3134942A1 EP3134942A1 (fr) 2017-03-01
EP3134942B1 true EP3134942B1 (fr) 2019-11-27

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EP15720648.3A Active EP3134942B1 (fr) 2014-04-23 2015-04-23 Borne de connexion de conducteur

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EP (1) EP3134942B1 (fr)
JP (1) JP2017514282A (fr)
KR (1) KR20160146832A (fr)
CN (1) CN106256046B (fr)
DE (1) DE202014101915U1 (fr)
WO (1) WO2015162210A1 (fr)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
TWI612743B (zh) * 2016-12-19 2018-01-21 接線端子改良結構
JP2018107079A (ja) * 2016-12-28 2018-07-05 オムロン株式会社 端子台
EP3477779B1 (fr) * 2017-04-25 2023-11-08 Fuji Electric FA Components & Systems Co., Ltd. Systeme comprenant une borne à virole et un bornier de connexion et équipement électrique comprenant un tel système
TWM550924U (zh) * 2017-05-26 2017-10-21 Switchlab Inc 用於電聯接端子之金屬彈片結構
TWM550925U (zh) * 2017-05-26 2017-10-21 Switchlab Inc 用於電聯接端子之金屬彈片保護結構
TWM553505U (zh) * 2017-05-26 2017-12-21 Switchlab Inc 用於電聯接端子之金屬彈片改良結構
CN109346854B (zh) * 2018-07-12 2024-04-19 天立电机（宁波）有限公司 快速连接端子
DE102022132567A1 (de) 2022-12-07 2024-06-13 Phoenix Contact Gmbh & Co. Kg Dosenklemme

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Also Published As

Publication number Publication date
WO2015162210A1 (fr) 2015-10-29
DE202014101915U1 (de) 2015-07-24
KR20160146832A (ko) 2016-12-21
JP2017514282A (ja) 2017-06-01
CN106256046A (zh) 2016-12-21
CN106256046B (zh) 2019-09-10
EP3134942A1 (fr) 2017-03-01

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