EP3261185B1 - Insert de contact d'une borne de raccordement à ressort de connexion et borne de raccordement à ressort de connexion - Google Patents

Insert de contact d'une borne de raccordement à ressort de connexion et borne de raccordement à ressort de connexion Download PDF

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Publication number
EP3261185B1
EP3261185B1 EP17176894.8A EP17176894A EP3261185B1 EP 3261185 B1 EP3261185 B1 EP 3261185B1 EP 17176894 A EP17176894 A EP 17176894A EP 3261185 B1 EP3261185 B1 EP 3261185B1
Authority
EP
European Patent Office
Prior art keywords
spring
clamping
holding frame
frame
contact insert
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
EP17176894.8A
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German (de)
English (en)
Other versions
EP3261185A1 (fr
Inventor
Jörg Ahldag
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
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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 EP3261185A1 publication Critical patent/EP3261185A1/fr
Application granted granted Critical
Publication of EP3261185B1 publication Critical patent/EP3261185B1/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
    • 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
    • H01R4/48275—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 with an opening in the housing for insertion of a release tool
    • 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
    • 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
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • 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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/52—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw which is spring loaded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to a contact insert of a spring force terminal with at least one holding frame and at least one hinged in the holding frame clamping spring, wherein at least within a region surrounded by a spring bow of the clamping spring a force acting to increase the clamping force of the clamping spring insertion spring is arranged.
  • the invention also relates to a spring force terminal with at least one such contact insert.
  • the invention relates to the field of electrical connection technology by means of spring clamps.
  • spring clamp terminals There are already known for this spring clamp terminals with Federkraftklemman untiln.
  • An electrical conductor can be clamped solely by the force of a clamping spring and electrically contacted, usually on a power rail. If electrical conductors with a large conductor cross-section are securely clamped, a correspondingly large spring force is required.
  • This can e.g. be realized in that the spring is made of a strip material with a large material thickness.
  • a manufacturing simplification can be realized by the used for the clamping of the electrical conductor clamping spring is made of thinner strip material and the clamping force is arranged by an at least partially surrounded by the clamping spring area an additional insertion spring.
  • Such a spring-loaded connection terminal is known from the WAGO series 285-135 or 285-635.
  • the invention is based on the object to simplify the contact insert of such a spring force terminal with respect to the assembly of the items.
  • the assembly is simplified and improved by integrally forming the insert spring with the support frame, e.g. as a one-piece metal part, e.g. in the form of a stamped and bent part. Accordingly, also eliminates a mounting of the insert spring on the support frame. It is only to mount the clamping spring on the support frame to provide the contact insert, or possibly even attach a busbar.
  • the invention also improves the cost of producing the contact insert and the storage of the components, since the variety of individual parts is reduced. In addition, the number of tools required for the production of the contact insert and for the assembly of the items can be reduced.
  • the arrangement of the clamping spring with the insertion spring inserted therein makes it possible to easily provide a high spring force for clamping electrical conductors with large cross-sections, eg 35 mm 2 or more. Due to the high spring force is a good electrical connection of the electrical conductor to the Busbar or other electrical parts of the contact insert ensured so that the voltage drop at the junction between the electrical conductor and the busbar or other components can be kept low.
  • the clamping spring and / or the insertion spring made of resilient sheet or strip material can be produced, which has a relatively small thickness, for example, a thickness in the range of 0.4 to 0.8 mm, in particular 0.6 mm.
  • Such spring material can be processed on simple, commercial punch-bending machines with little effort, since relatively low forming forces are required.
  • Another advantage of the invention is that the use of copper can be kept low.
  • the contact insert can basically be used for spring-cage terminals of any kind, accordingly also for fundamentally arbitrarily shaped clamping springs, as far as they have at least one spring bow.
  • the contact insert according to the invention can be realized in particular in a favorable manner, a push-in spring terminal connection.
  • an electrical conductor with sufficient rigidity e.g. a stranded conductor or a stranded conductor with, for example, a wire end ferrule, are inserted directly into the spring terminal connection or into its terminal point, without first having to deflect the clamping spring by means of a tool or an actuating element of the spring terminal. This is particularly advantageous for the fast wiring of a large number of electrical lines.
  • the clamping spring has a clamping leg for clamping an electrical conductor and a bearing leg, via which the clamping spring is supported on the holding frame, wherein the clamping leg is connected via the spring bow to the plant leg.
  • the clamping leg can end in particular with a clamping edge, which serves for clamping a conductor in the contact insert.
  • the clamping spring may in particular be designed such that the clamping leg and the bearing limb are substantially parallel and the spring bow describes an angular range of about 180 ° when no conductor is clamped in the contact insert. In this way, proven, reliable clamping spring constructions can be used, e.g. in the manner of a loop pen.
  • the holding frame surrounds a frame interior annularly, wherein the holding frame a support surface facing the frame interior for the Einitati Stud of the clamping arm of the clamping spring and on a side opposite the holding surface side of the holding frame facing the frame interior support surface for the end of the Clamping leg of the clamping spring or a bus bar, so that the clamping spring in the holding frame between the support surface and the support surface or resting on the support surface busbar can be clamped so that the clamping leg of the clamping spring rests on the support surface or the busbar, if no conductor is clamped therebetween , In this way, a reliable holding and Einitatiitz possibility for the clamping spring is provided on the support frame.
  • the clamping spring can thus be on one side, i. with the plant leg, supported on the support surface, and supported on the other side, namely with the clamping leg, directly or indirectly via the bus bar on the support surface. Accordingly, a clamping point for the electrical conductor is provided between the clamping leg, in particular its clamping edge, and the support surface or the busbar.
  • the contact insert may be formed as a contact insert with a separate busbar, ie a busbar, which is provided as a separate component and is clamped to the support surface in the holding frame by means of the clamping leg.
  • the contact insert can also be designed as a contact insert with integrated busbar, for example by the holding frame has an integrated busbar. This can be realized, for example, by stamping and bending a part of the holding frame, for example a material region facing the frame interior, so that it forms a bus bar for supporting the electrical conductor.
  • the contact insert has a busbar formed as a separate component, this busbar can thus be clamped between the clamping leg and the support surface.
  • the holding frame forms a kind of cage in which the busbar and the clamping spring can be accommodated.
  • the support frame of the frame interior is in particular completely enclosed annularly, which has the advantage that a self-contained system is provided which forms a self-supporting spring force connection system with the inclusion of a clamping spring, which may be formed as a push-in clamping spring.
  • the contact insert according to the invention is suitable for clamping springs and busbars in many designs.
  • no special adaptation of the busbar to use in the contact insert according to the invention is required. So no changes to the busbar material thickness must be made.
  • busbars can be used in proven design.
  • a busbar piece may be guided in the holding frame, wherein the busbar piece in the area of the system in the holding frame for an angled and can be provided on the other with a bead for the end of the clamping leg of the clamping spring.
  • the frame interior may be separated from the support frame e.g. be enclosed annularly with rectangular or square profile contour.
  • Other geometries of the ring shape are possible, e.g. oval or circular, a rectangular or square shape but is for the function of a spring-loaded terminal on Gebhoffchlisten.
  • the support surface is arranged on one side of the frame interior.
  • the frame interior can also be used to form the terminal point for the electrical conductor.
  • the holding surface can also be arranged on one side of the frame interior, for example, a side of the frame interior opposite the support surface.
  • the holding surface is not arranged on one side of the frame interior.
  • the holding surface may accordingly be arranged in another region of the holding frame, e.g. on a separate retaining tab for attaching the clamping spring.
  • the loading spring is designed as a separate component, it can have a bearing limb which is hung on one side of the frame interior, e.g. on a side opposite the support surface of the frame interior.
  • the insertion spring ends with its ending in the region of the clamping leg of the clamping spring part before reaching an end-side clamping edge of the clamping leg.
  • the holding frame in the region of the holding surface has an integrally formed on the holding frame extended piece of material which is bent away arcuately from the holding frame and which forms the insertion spring. This allows a simple and cost-effective production of a holding frame with integrated insertion spring.
  • the insert spring may have a similar shape as the clamping spring, at least in the region of the spring bow and the adjacent region of the contact leg and the clamping leg.
  • the insert spring abuts at least in the region of its end legs or in the predominant longitudinal extension region on the inner side of the clamping spring formed between the abutment leg and the clamping leg.
  • the loading spring can exert a sufficient supporting force on the clamping spring.
  • the insert spring does not have to rest at any point on the clamping spring, but may have on the clamping spring adjacent areas and not present on the clamping spring areas.
  • the insert spring can abut against the clamping spring, in particular in the area of the spring bow.
  • the insertion spring at its end facing the clamping leg has a greater width than the width of the frame interior of the holding frame and / or the clamping leg facing the end of the insertion spring is arranged offset to the frame interior. In this way it can be prevented that the insertion spring can move endwise with appropriate deflection of the clamping spring into the frame interior. Rather, the free end of the loading spring in the region of the clamping leg forms a stop on the holding frame.
  • the spring-cage connection terminal can optionally be designed as a spring-force connection terminal with its own actuating element, eg actuating lever or actuating push-button, or without its own actuating element. If there is a separate actuating element, the clamping point of the spring terminal connection can be opened by means of the actuating element by the clamping leg is lifted from the busbar or an already clamped conductor and in the direction of the plant leg is bent. If the spring-force connection terminal does not have its own actuating element, the previously explained, desired opening of the spring-force terminal connection can be carried out by means of a tool, for example by means of a screwdriver.
  • Another advantage is that by means of the holding frame is avoided, the spring and actuating forces in a housing of the spring force terminal, which surrounds the contact insert, are introduced.
  • a reduction of the friction is possible when the running surface of the actuating element is located directly on the surface of the holding frame. As a result, the operating force of the actuating element can be reduced.
  • the support frame 2 is made in one piece with the insertion spring 5 from a band-shaped or strip-shaped sheet metal part.
  • a lower, vertically extending portion A of the sheet metal part of the holding function essential part of the holding frame 2 is formed, which has a frame interior 20 which is annularly surrounded by the material of the holding frame 2.
  • the section A passes over into a section B bent obliquely or almost at right angles from the section A, which merges over an arcuate region into an end-side section C of the sheet metal part.
  • insert spring 5 is formed.
  • the support frame 2 has in the frame interior 20 on one side a support surface 22, on which the busbar 31 is mounted and rests on the support surface 22.
  • a tab 24 is bent out of the sheet metal part, e.g. by punching and bending, wherein the tab 24 has a window-like recess region, on one inner side of a holding surface 25 for suspending a support leg 40 of the clamping spring 4 is present.
  • the sheet metal part is substantially the same shape in the region of the insertion spring 5 as the clamping spring 4, at least in essential areas of the abutment leg, a rear spring bow 41 and a clamping leg 42nd
  • the insert spring 5 ends in the section C with an end edge 50, which is recognizably wider than the width of the frame interior 20.
  • the end edge 50 is a stop for the insert spring 5, when it is deflected in the direction of the support frame 2.
  • the clamping spring 4 which is now based on the FIGS. 1 and 3 is explained, has a plant leg 40, then a rear spring bow 41 and then a clamping leg 42 thereafter.
  • the plant leg 40 terminates in a narrower hanging area 45, which can be inserted into the recess of the tab 24 and can be hung on the support surface 25.
  • the hanging region 45 is bent in a direction opposite to the spring bow 41 bending sense so to speak upwards.
  • the clamping spring 4 ends with a clamping edge 43, which is arranged in a slightly downwardly bent end portion 44 of the clamping spring.
  • the end portion 44 is slightly narrower than the remaining portions of the clamping leg 42, since this end portion 44 is inserted through the opening in the support frame 2, ie in the frame interior 20, to either the support surface 22 or, as in FIG. 1 shown to be held by the bus bar 31.
  • An electrical conductor may be inserted into the spring-force terminal 1 through a conductor insertion opening 21 and is then clamped between the clamping edge 43 of the clamping spring 4 and the bus bar 31. Accordingly, a clamping point 32 of the spring-force connection terminal 1 is formed between the clamping edge 43 and the busbar 31.

Landscapes

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

Claims (9)

  1. Insert de contact destiné à une borne de raccordement à force de ressort (1) et comprenant au moins un cadre de retenue (2) et au moins un ressort de serrage (4) suspendu dans le cadre de retenue (2), un ressort d'insertion (5) qui sert à amplifier la force de serrage du ressort de serrage (4) étant disposé au moins dans une région entourée par un coude (41) du ressort de serrage (4), le ressort de serrage (4) comportant une branche de serrage (42) destinée à serrer un conducteur électrique et une branche d'appui (40) par le biais de laquelle le ressort de serrage (4) vient en appui sur le cadre de retenue (2), la branche de serrage (42) étant reliée à la branche d'appui (40) par le biais du coude (41),
    caractérisé en ce que le ressort d'insertion (5) est formé d'une seule pièce avec le cadre de retenue (2).
  2. Insert de contact selon la revendication précédente, caractérisé en ce que le cadre de retenue (2) entoure annulairement un espace intérieur de cadre (20), le cadre de retenue (2) comporte une surface de retenue (25) dirigée vers l'espace intérieur de cadre (20) et destinée à la branche d'appui (40) du ressort de serrage (4) et, sur un côté du cadre de retenue (2) des surfaces de maintien (25) qui est opposé à la surface de retenue (25), une surface d'appui (22) dirigée vers l'espace intérieur de cadre (20) et destinée à la branche de serrage (42) du ressort de serrage (4) ou une barre omnibus (30, 31) de sorte que le ressort de serrage (4) peut être serré dans le cadre de retenue (2) entre la surface de retenue (25) et la surface d'appui (22) ou la barre omnibus (30, 31) en appui sur la surface d'appui (22) de sorte que la branche de serrage (42) du ressort de serrage (4) est en appui sur la surface de retenue (22) ou la barre omnibus (30, 31) lorsqu'aucun conducteur n'est serré entre elles.
  3. Insert de contact selon la revendication précédente, caractérisé en ce que la surface d'appui (22) est disposée sur un côté de l'espace intérieur de cadre (20).
  4. Insert de contact selon la revendication précédente, caractérisé en ce que le ressort d'insertion (5) se termine, par sa partie se terminant dans la région de la branche de serrage (42) du ressort de serrage (4), avant d'atteindre un bord de serrage côté extrémité (43) de la branche de serrage (42).
  5. Insert de contact selon la revendication 2, caractérisé en ce que le cadre de retenue (2) comporte dans la région de la surface de retenue (25) un bout de matériau prolongé qui est formé au niveau du cadre de retenue (2) et qui s'étend en coude depuis le cadre de retenue (2) et forme le ressort d'insertion (5).
  6. Insert de contact selon la revendication 1, caractérisé en ce qu'une patte saillante (24) fait saillie du cadre de retenue (2) et est adaptée pour retenir la branche d'appui (40) du ressort de serrage (4) .
  7. Insert de contact selon la revendication 1, caractérisé en ce que le ressort d'insertion (5) vient en appui, au moins dans la région de ses branches côté extrémité (B, C) ou dans la région d'extension longitudinale prédominante, sur le côté intérieur du ressort de serrage (4) qui est formé entre la branche d'appui (40) et la branche de serrage (42).
  8. Insert de contact selon la revendication 2, caractérisé en ce que le ressort d'insertion (5) présente à son extrémité dirigée vers la branche de serrage (42) une largeur supérieure à la largeur de l'espace intérieur de cadre (20) du cadre de retenue (2) et/ou l'extrémité du ressort d'insertion (5), qui est dirigée vers la branche de serrage (42), est disposée de manière décalée par rapport à l'espace intérieur de cadre (20).
  9. Borne de raccordement à force de ressort (1) comprenant au moins un insert de contact selon l'une des revendications précédentes.
EP17176894.8A 2016-06-23 2017-06-20 Insert de contact d'une borne de raccordement à ressort de connexion et borne de raccordement à ressort de connexion Active EP3261185B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016111536.3A DE102016111536A1 (de) 2016-06-23 2016-06-23 Kontakteinsatz einer Federkraftanschlussklemme sowie damit ausgebildete Federkraftanschlussklemme

Publications (2)

Publication Number Publication Date
EP3261185A1 EP3261185A1 (fr) 2017-12-27
EP3261185B1 true EP3261185B1 (fr) 2019-11-27

Family

ID=59093448

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Application Number Title Priority Date Filing Date
EP17176894.8A Active EP3261185B1 (fr) 2016-06-23 2017-06-20 Insert de contact d'une borne de raccordement à ressort de connexion et borne de raccordement à ressort de connexion

Country Status (4)

Country Link
US (1) US10141661B2 (fr)
EP (1) EP3261185B1 (fr)
CN (1) CN207233997U (fr)
DE (1) DE102016111536A1 (fr)

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DE202018106242U1 (de) * 2018-11-01 2020-02-14 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme

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US20170373406A1 (en) 2017-12-28
US10141661B2 (en) 2018-11-27
CN207233997U (zh) 2018-04-13
DE102016111536A1 (de) 2017-12-28
EP3261185A1 (fr) 2017-12-27

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