EP2956993B1 - Federklemmkontakt und verbindungsklemme für elektrische leiter - Google Patents

Federklemmkontakt und verbindungsklemme für elektrische leiter Download PDF

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Publication number
EP2956993B1
EP2956993B1 EP14704143.8A EP14704143A EP2956993B1 EP 2956993 B1 EP2956993 B1 EP 2956993B1 EP 14704143 A EP14704143 A EP 14704143A EP 2956993 B1 EP2956993 B1 EP 2956993B1
Authority
EP
European Patent Office
Prior art keywords
clamping
section
resilient
contact
spring
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
EP14704143.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2956993A1 (de
Inventor
Hans-Josef Köllmann
Wolfgang Gerberding
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
Priority to PL14704143T priority Critical patent/PL2956993T3/pl
Publication of EP2956993A1 publication Critical patent/EP2956993A1/de
Application granted granted Critical
Publication of EP2956993B1 publication Critical patent/EP2956993B1/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
    • 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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means

Definitions

  • the invention relates to a spring clamp contact according to the preamble of claim 1.
  • the invention further relates to a connecting terminal for electrical conductors with an insulating material housing and with at least one such spring clamp contact.
  • Such spring clamp contacts are used in connection terminals, in particular in box terminals for the electrically conductive connection of several electrical conductors to one another, in circuit board connectors, other connectors and terminal blocks or other electrical devices.
  • a lever-operated connecting terminal in which a cage tension spring rests with its contact leg on a busbar piece which protrudes through a conductor lead-through opening of the cage tension spring.
  • the lever acts on an actuating section of the cage tension spring from above, the clamping section having the conductor lead-through opening being bent away from the actuating section transversely to the busbar piece.
  • the clamping spring also has a clamping section which is formed for clamping an electrical conductor against the busbar section and an actuating section protruding therefrom, which extends away from the direction of the spring force of the clamping spring acting on the clamping section and which is oriented towards being acted upon by an actuating element in such a way that the actuating element can be exercised a tensile force acting on the actuating section when the actuating element is displaced against the spring force for opening the clamping spring can be brought into engagement with the actuating section.
  • the object of the present invention is to provide an improved spring clamping contact for contacting electrical conductors as well to provide an improved connector for electrical conductors.
  • the at least two frame parts for the at least two clamping springs are spaced apart from one another with an intermediate space between two adjacent side bars.
  • the distance between two adjacent side bars of frame parts arranged side by side creates a free space in which an actuating element, such as an actuating lever pivoted in an insulating material housing and / or a housing wall section can preferably be arranged.
  • an actuating element such as an actuating lever pivoted in an insulating material housing and / or a housing wall section can preferably be arranged.
  • the frame parts are molded in one piece with the busbar.
  • conductor bushing openings are punched out of a busbar sheet to form side bars and a cross bar and before or after the punching step, the side bars together with the cross bar connecting them, ie the frame parts, are bent away from a terminal contact surface of the bus bar at an acute or obtuse angle.
  • the angle between the busbar plane on which the clamping point is formed and the frame parts is preferably about 60 to 120 degrees.
  • the frame parts are formed on a frame element separate from the busbar, the frame element being suspended in the busbar.
  • the frame element is held on the busbar by the force of the clamping springs acting between the transverse web and the frame parts of the frame element and the busbar, in that the frame element preferably engages under the busbar.
  • retaining elements in the form of retaining lugs can be provided on the busbar, which transverse webs of the frame element engage under.
  • the busbar has latching openings or latching recesses into which the latching fingers of the frame element engage in order to (detachably) connect the frame element to the busbar.
  • the clamping section of a clamping spring is preferably bent or kinked away from the section of the clamping leg adjoining the spring arch in the direction of the busbar.
  • the clamping section has a smaller width than the remaining section of the clamping leg. This is particularly advantageous because the at least one laterally protruding area of the section of the clamping leg which is wider in relation to the clamping section can be opened as an actuating section for opening a clamping point for an electrical conductor formed between the clamping section of the clamping spring and the busbar with an actuating element. which cooperates with the actuating section and protrudes into the space between two frame parts.
  • Figure 1 shows a perspective view of a first embodiment of a spring clamp contact 1 which is essentially formed from a busbar 2 and several, for example three clamp springs 3 as shown.
  • the busbar 2 is formed from a material with good electrical conductivity, such as, for example, from a copper sheet. It extends transversely to the direction of extension of the clamping springs 3 and in the rowing direction of the several clamping springs 3. In this way, the electrical conductor clamped to one clamping point of the busbar 2 with a clamping spring 3 can then be clamped to another clamp spring 3 of the spring clamp contact 1 in an electrically conductive manner electrical conductors are connected.
  • the clamping springs 3 each have a contact leg 4, a spring bow 5 adjoining the contact leg 4 and a clamping leg 6 adjoining the spring bow 5.
  • the clamping legs 6 each have a clamping section 7 at the free end on which a clamping edge is formed.
  • associated frame parts 8 are formed for each clamping spring 3, each having two spaced-apart side webs 9a, 9b and an upper cross web 10 connecting the side webs 9a, 9b to one another at the free end.
  • the transverse busbar 2 forms a further lower transverse web 11.
  • the side webs 9a, 9b and the opposing cross webs 10, 11 create a conductor feed-through opening 12 for the passage of an electrical conductor which is attached to the clamping edge of the clamping section 7 of the associated clamping spring 3 and the contact edge 13 formed on the lower transverse web 11 of the busbar 2 is clamped.
  • the clamping edge of the clamping section 7 of the clamping spring 3 and the contact edge 13 of the busbar 2 thus form a clamping point for the electrical conductor to be clamped.
  • the frame parts 8 for the clamping springs 3 arranged next to one another are spaced apart from one another, forming an intermediate space 14 between frame parts 8 arranged next to one another.
  • the adjacent side webs 9a, 9b of the frame parts 8 lying next to one another are spaced apart from one another.
  • a section of an actuating element (not shown) for at least one associated clamping spring 3 can be introduced into this intermediate space 14, so that the space between the clamping springs 3 and in particular the space between the frame parts 8 can be used through the intermediate space 14 to accommodate sections of an actuating lever . This allows a very compact connecting terminal to be built.
  • the clamping section 7 of the clamping spring 3 has a smaller width than the adjoining further section of the clamping leg 6 and the spring bow 5.
  • the axis of rotation of this actuating lever is then located below the clamping leg 6 and the spring bow 5 in the space between the clamping leg 6 and busbar 2.
  • the free end of the contact limb 4 also has a smaller width than the section of the contact limb 4 and the spring bow 5 adjoining the spring bow 5.
  • This The reduced width of the contact leg 4 is adapted to the width of the conductor lead-through opening 12 of the frame part 8 in order to enable the contact leg 4 to be hooked into the conductor lead-through opening 2 for contact with the upper transverse web 10.
  • Figure 2 omits a side view of the spring clamping contact 1 Figure 1 detect. It becomes clear that the rear free end of the contact leg 4 protrudes through the conductor lead-through opening 12 of the frame part 8 and is hooked into the frame part 8. It can also be seen that the frame part 8 is integrally formed in one piece with the busbar 2 from the same sheet metal part and is bent over from the plane of the busbar adjoining the clamping edge of the clamping spring 3 in the direction of the contact leg 4 of the clamping spring 3 at an angle of approximately 90 ° to 120 ° .
  • the clamping leg 6 is bent at an internal angle of approximately 70 ° to 120 ° in the direction of the plane of the busbar 2 on which the clamping edge of the clamping section 7 rests in the illustrated idle state and is almost (+/- 20 °) is perpendicular to this plane. From this strongly bent section standing transversely to the conductor insertion direction, the clamping section 7 is then bent back to the free end to form a clamping edge and is at an acute angle to the aforementioned plane of the busbar 2 electrical conductor can be prevented without prior opening of the terminal point by shifting the clamping leg 6 upwards in the direction of the contact leg 4. Such direct insertion of a multi-wire electrical conductor without prior actuation could lead to the multiple wires of the electrical conductor being fanned out, which are then located in the connection space in an uncontrolled manner.
  • Figure 3 omits a side sectional view through the first embodiment of the spring clamp contact Figure 1 and 2 detect. It becomes clear that the contact leg 4 is passed through the conductor lead-through opening 12 with a bent end section 15 and is in contact with the upper transverse web 10. The clamping spring 3 is thus suspended in a stable position in the busbar 2. The opposite end of the U-shaped bent clamping spring 3, ie the clamping section 7 of the clamping leg 4 is bent in the direction of the section of the busbar 2 which extends transversely to the number of clamping springs 3 and adjoins the frame parts 8, the free end of the Clamping section is at an acute angle to this transverse section of the busbar 2.
  • An adjoining section of the clamping leg 6 that is approximately transversely to the conductor insertion direction L and the section of the busbar 2 is, however, aligned at an obtuse angle to the transverse section of the busbar 2 in order to prevent a multi-wire electrical conductor from being plugged in directly without prior actuation of the clamping spring 3 .
  • Figure 4 shows a cross-sectional view of a connecting terminal 16 with an insulating material housing 17.
  • the insulating housing 17 is made in two parts and has a main housing part 18 made of insulating material, which is closed with a cover part 20 after an actuating lever 19 and the spring terminal contact 1 have been inserted.
  • the main housing part 18 and cover part 20 are locked together in order to mount the actuating lever 19 with a pivot bearing section 21, which has a part-circular periphery, on this part-circular periphery with matching part-circular bearing contours 22 in the insulating material housing 17.
  • the pivot bearing section 21 can also be supported on the busbar 2.
  • the pivot bearing section 21 has an actuating contour 23 in the form of a V-shaped cutout, which merges into the outer circumference via a curved path.
  • the clamping leg 6 of the associated clamping spring 3 rests with a lateral area on this actuating contour 23, so that the clamping leg 6 is displaced away from the transverse section of the busbar 2 in the illustrated open position of the actuating lever 9.
  • An electrical conductor can then be introduced via a conductor entry opening 24 in the insulating material housing 17, which is open at the end and opens into the connection space of the spring clamp contact 1. This is then passed over the inclined section of the busbar 2 extending transversely to the clamping springs 3 through the conductor lead-through opening 12 of the associated frame part 8 of the spring clamp contact 1. The free stripped end of an electrical conductor then arrives in a conductor receiving pocket 25, which is located behind the conductor feed-through opening 12 of the frame part 8 in the conductor guide direction L, i.e. in the direction of extension of the conductor insertion opening 24.
  • Figure 5 omits the connecting terminal 16 Figure 4 detect when closed.
  • the actuating lever 19 is folded down in the direction of the insulating housing 17.
  • the actuating contour 23 has rotated here by pivoting the pivot bearing section 21 by approximately 90 °. This makes it possible for the clamping leg 6 to move away from the contact leg 4 downward in the direction of the busbar 2 by the force of the clamping spring 3. In the illustrated closed end position, the clamping leg 6 no longer rests on the actuating section 23, so that the clamping spring 3 can move unimpaired by the actuating lever 19.
  • FIG. 6 shows a perspective view of a second embodiment of a spring clamp contact 1 not according to the invention.
  • a busbar 2 extends transversely to the direction in which several clamping springs 3 are arranged.
  • a retaining lug 26 protrudes from the busbar 2 from the side edge of the busbar 2 in the conductor insertion direction L, that is, in the direction of extension of the contact leg 4 and the clamping leg 6 of the clamping springs 3 .
  • a clamping point for clamping an electrical conductor is provided by a clamping edge on the free end of the clamping section 7 of the clamping spring 3 and a contact edge 13 on the associated retaining lug 26.
  • An electrical conductor to be clamped is thus pressed by the force of the clamping spring 3 with the clamping edge on the clamping section 7 of the clamping spring 3 against the contact edge 13 on the opposite retaining lug 26.
  • the force of the clamping spring 3 is concentrated on a defined, reduced contact area and the surface pressure is thus optimized.
  • the frame parts 8 are now integrally formed in one piece with the associated clamping spring 3.
  • the frame parts 8 are formed as an extension of the contact leg 4 and are bent from the contact leg 4 in the direction of the opposite, transverse section of the busbar 2.
  • the frame parts 8 in turn have side webs 9a, 9b and at the free end a transverse web 11 which connects the side webs 9a, 9b to one another and which engages under the busbar 2.
  • the clamping spring 3 is hooked into the busbar 2 and held on the busbar 2 by the force of the clamping spring via the clamping leg 6.
  • an upper transverse web 10 is provided for connecting the frame parts 8, so that the transverse webs 10, 11 and the side webs 9a, 9b form a conductor feed-through opening 12 for passing an electrical conductor through.
  • Figure 7 omits a side sectional view through the spring terminal contact 1 Figure 6 detect. It becomes clear that the transverse web 11 is folded or bent over at the free end of the frame part 8 and lies under the transverse section of the busbar 2.
  • the retaining lug 26 is displaced downward out of the plane of the busbar 2, for example by pressing, in order to form a stop for the lower transverse web 11. In this way, the clamping spring 3 is locked on the busbar 2.
  • a contact edge 13 for clamping an electrical conductor is created on the top of the busbar 2, on which the clamping force of the clamping spring 3 is concentrated.
  • Figure 8 leaves a perspective view and Figure 9 a side sectional view of a third embodiment of a spring terminal contact 1 can be seen.
  • several clamping springs 3 are lined up next to one another and hooked into a busbar 2.
  • separate frame parts 8 are provided from the busbar 2 and the clamping spring 3, which frame parts are preferably formed from a sheet metal material.
  • the task of the busbar 2 is comparable to the first embodiment.
  • the retaining lug 26 is displaced downward relative to the underside of the busbar 2 in order to form a stop for the lower transverse web 11 of the frame part 8.
  • no free space with a shoulder for forming a clamping edge 13 is provided.
  • the busbar runs obliquely from the upper level, so that a clamping edge 13 is formed in the transition between the upper level of the busbar 2 and the obliquely tapering end.
  • the busbar 2 it is also conceivable to use the busbar 2 from the second exemplary embodiment in the present solution.
  • the first and second embodiment are combined in such a way that, with the help of the separate frame parts 8, the contact leg 4 of the associated clamping spring 3 is hooked into the upper crossbar 10 and the busbar 2 is hooked into the lower crossbar 11 with the help of the retaining lug 26.
  • the frame parts 8 have two spaced-apart side webs 9a, 9b and at the two opposite ends cross webs 10, 11 that connect the side webs 9a, 9b to one another, in order to create a circumferentially closed frame with a conductor opening 12 formed in between.
  • the frame parts 8 are arranged at a distance from one another on the busbar 2 with an intermediate space 14. It is irrelevant whether the frame parts are formed in one piece, integrally with the busbar 2 or with an associated clamping spring 3, or are designed as a separate component from the busbar 2 and the clamping springs 3.
  • the spring clamp contact 1 and a connecting terminal 16 equipped with such a spring clamp contact 1 can also be designed in two rows. Two parallel conductor connection planes spaced apart from one another are provided in that frame parts 8 extend in opposite directions to one another.
  • a double-layer busbar 2 can be provided which has integrally formed frame parts 8 extending in opposite directions.
  • separate frame parts can also be accommodated in a space between the double-layer busbar. It is also conceivable, however, for conductor connections to be lined up next to one another with frame parts 8 alternately oriented in opposite directions on a busbar 2.
  • a two-row connecting terminal 16 can also be created by having at least one clamping spring 3 above and below the busbar with an orientation rotated by 180 ° to each other and, on the one hand, in the space above and on the other hand in the space below the busbar 2, frame parts 8 on opposite outer edges the busbar 2 are provided.

Landscapes

  • Installation Of Bus-Bars (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Railway Tracks (AREA)
EP14704143.8A 2013-02-13 2014-02-12 Federklemmkontakt und verbindungsklemme für elektrische leiter Active EP2956993B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14704143T PL2956993T3 (pl) 2013-02-13 2014-02-12 Złączka z zaciskiem sprężynowym i zacisk przyłączeniowy dla przewodów elektrycznych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013100635U DE202013100635U1 (de) 2013-02-13 2013-02-13 Federklemmkontakt und Verbindungsklemme für elektrische Leiter
PCT/EP2014/052719 WO2014124961A1 (de) 2013-02-13 2014-02-12 Federklemmkontakt und verbindungsklemme für elektrische leiter

Publications (2)

Publication Number Publication Date
EP2956993A1 EP2956993A1 (de) 2015-12-23
EP2956993B1 true EP2956993B1 (de) 2021-04-07

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ID=48051756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14704143.8A Active EP2956993B1 (de) 2013-02-13 2014-02-12 Federklemmkontakt und verbindungsklemme für elektrische leiter

Country Status (10)

Country Link
US (1) US9502790B2 (ko)
EP (1) EP2956993B1 (ko)
JP (1) JP6400607B2 (ko)
KR (1) KR102145876B1 (ko)
CN (1) CN104995798B (ko)
DE (1) DE202013100635U1 (ko)
ES (1) ES2871850T3 (ko)
PL (1) PL2956993T3 (ko)
RU (1) RU2597003C1 (ko)
WO (1) WO2014124961A1 (ko)

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DE102014102517B4 (de) * 2014-02-26 2021-06-10 Wago Verwaltungsgesellschaft Mbh Verbindungsklemme und Federkraftklemmkontakt hierzu
DE102014103638B4 (de) * 2014-03-17 2016-05-19 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlussklemme
DE102015100823B4 (de) * 2015-01-21 2021-12-09 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlussklemme
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DE202015105023U1 (de) * 2015-09-22 2016-12-23 Weidmüller Interface GmbH & Co. KG Anschlussvorrichtung für Leiter
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DE102016111536A1 (de) * 2016-06-23 2017-12-28 Wago Verwaltungsgesellschaft Mbh Kontakteinsatz einer Federkraftanschlussklemme sowie damit ausgebildete Federkraftanschlussklemme
DE102016111627A1 (de) 2016-06-24 2017-12-28 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE102016116966A1 (de) 2016-09-09 2018-03-15 Wago Verwaltungsgesellschaft Mbh Federkraftklemmanschluss sowie Leiteranschlussklemme
DE102016122238A1 (de) 2016-11-18 2018-05-24 Wago Verwaltungsgesellschaft Mbh Federklemmkontakt zur Kontaktierung elektrischer Leiter, Leiteranschlussklemme und Verfahren zur Herstellung eines Federklemmkontakts
CN110431716B (zh) 2017-01-06 2021-08-06 哈勃股份有限公司 具有免螺丝连接端子的电气布线装置
JP6527905B2 (ja) * 2017-05-17 2019-06-05 矢崎総業株式会社 グリス塗布用接触バネ保持治具
CN107799914B (zh) * 2017-10-12 2023-11-07 东莞市美金兴能源有限公司 一种线夹
CN108429042A (zh) * 2018-03-20 2018-08-21 苏州惠华电子科技有限公司 一种紧凑型快速接线连接器
BE1026171B1 (de) * 2018-04-03 2019-10-30 Phoenix Contact Gmbh & Co Kg Anschlusseinrichtung zum Anschließen eines Schirmleiters einer elektrischen Leitung an einen Erdungsabschnitt
FR3079890B1 (fr) * 2018-04-04 2020-04-03 A. Raymond Et Cie Agrafe de fixation pour chassis photovoltaique a montage par insertion puis coulissement dans une fente d’une paroi de support
CN108899664A (zh) * 2018-07-30 2018-11-27 浙江京红电器有限公司 电线接线夹
DE102019108291A1 (de) * 2019-03-29 2020-10-01 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
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DE102019131653B4 (de) * 2019-11-22 2024-01-18 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE102020104077A1 (de) * 2020-02-17 2021-08-19 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Federkraftklemmanschluss
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EP2956993A1 (de) 2015-12-23
ES2871850T3 (es) 2021-11-02
CN104995798A (zh) 2015-10-21
US20150372402A1 (en) 2015-12-24
JP2016507147A (ja) 2016-03-07
PL2956993T3 (pl) 2021-10-11
DE202013100635U1 (de) 2013-03-04
RU2597003C1 (ru) 2016-09-10
US9502790B2 (en) 2016-11-22
WO2014124961A1 (de) 2014-08-21
JP6400607B2 (ja) 2018-10-03
KR20150116853A (ko) 2015-10-16
CN104995798B (zh) 2017-11-14
KR102145876B1 (ko) 2020-08-20

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