EP2917970B1 - Federkraftklemme mit einem betätigungsmittel - Google Patents

Federkraftklemme mit einem betätigungsmittel Download PDF

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Publication number
EP2917970B1
EP2917970B1 EP13783518.7A EP13783518A EP2917970B1 EP 2917970 B1 EP2917970 B1 EP 2917970B1 EP 13783518 A EP13783518 A EP 13783518A EP 2917970 B1 EP2917970 B1 EP 2917970B1
Authority
EP
European Patent Office
Prior art keywords
spring
clamping
actuation
arm
angle
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
EP13783518.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2917970A1 (de
Inventor
Stefan Aporius
Bernd Van Giesen
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
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 Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP2917970A1 publication Critical patent/EP2917970A1/de
Application granted granted Critical
Publication of EP2917970B1 publication Critical patent/EP2917970B1/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
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4833—Sliding arrangements, e.g. sliding button
    • 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

Definitions

  • the present invention relates to a spring-loaded terminal according to the preamble of claim 1.
  • spring terminals There are a variety of different spring terminals known, which are provided for connecting an electrical conductor to an electrical component, for example to an electrical circuit board.
  • the decisive factor for such spring-loaded terminals is that they allow easy and quick fastening of an electrical conductor in the spring-loaded terminal and optionally also an easy and rapid release of the electrical conductor from the spring-loaded terminal.
  • the spring-loaded terminals must ensure safe contact of the electrical conductor with the electrical component.
  • electrical components are built smaller and smaller, so that the space available for the spring-loaded terminals space is getting smaller.
  • the spring-loaded terminals should therefore occupy as little space as possible.
  • the publication DE 10 2010 025 930 A1 discloses a spring terminal with an opening device with which a clamping leg of a clamping spring is pivotable so that a jammed in the spring terminal electrical conductor this is removable.
  • the opening device has legs, which are guided laterally of the clamping leg. To remove the electrical conductor therefore lateral widening of the clamping leg are required to which the opening device engages when opening the clamping spring. The depth of this spring clamp is therefore determined by the spacers and wider than the clamping leg.
  • the object of the invention is to provide a spring clamp, which allows easy and safe as well as quick attachment and detachment of an electrical conductor in the spring terminal, ensures a secure contact, and requires the smallest possible depth.
  • a spring terminal for connecting an electrical conductor, with a spring cage defining a terminal space in which a clamping spring is arranged for clamping the electrical conductor in the region of a terminal point, which has a Klemmfederarm, with which the conductor in the region Clamping point against the conductive spring cage or a busbar can be pressed
  • the spring terminal comprises an actuating means for actuating the clamping spring, which opens the terminal compartment in an operating direction by pressing an actuating head
  • the actuating means further comprises an elongated, preferably rectangular and preferably circumferentially closed passage through the conductor in the connection space and the terminal point is insertable
  • the actuating means has a contact surface, with which it preferably abuts flat when pressing the clamping spring and which angled i n is oriented at an angle ⁇ to the conductor insertion direction, and wherein the passage has an angularly oriented at an angle ⁇ to autismein foundedurgial surface over which conductors of
  • the actuating means preferably rests flat, in particular full surface, on the clamping spring, the depth of this spring terminal is very narrow buildable and very compact, so that in the direction of the pivot axis in a relatively dense space many of the connection devices can be accommodated, for example in a plug or a terminal , especially in a terminal block.
  • Opening can be done by the conductor itself or by pressing on the actuator.
  • the conductor itself it is advantageous that it acts on the clamping spring arm over the surface of the bushing and moves it. This makes it possible to put the contact surface very close to the free end of the clamping leg, so that the lever arm on Klemmfederarm when pressing to release the nip when removing the conductor can be quite long. The contact surface can thus extend to very close to the nip.
  • the Klemmfederarm is in this case of the basic state in which the electrical conductor is inserted into the spring-loaded terminal in a Einsschiebecardi, in the clamping state in which the electrical conductor is clamped in the spring terminal clamp, pivotable in a pivoting direction.
  • the pivoting of the clamping spring arm in the pivoting direction is preferably limited by a stop which is provided on the spring cage.
  • the actuating means comprises an actuating arm with a first arm part which is at a first angle to the clamping spring arm of the clamping spring.
  • the first angle is about 75 ° -90 °, preferably 85 ° - 90 °, so that the clamping spring arm is arranged approximately orthogonal to the first arm of the actuating means, which allows an advantageous introduction of force.
  • the actuating arm has a second arm part, which is arranged at a second angle to the first arm part.
  • the spring clamp is buildable so that the contact surface acts upon actuation to about half the length of the Klemmfederarms.
  • the actuating direction is arranged in a right or at least approximately right angle to the insertion direction.
  • the actuating arm has an actuating head.
  • an engagement for an actuating means in particular a screwdriver is provided on the actuating head.
  • the adjustment of the first and / or second angle allows adjustment of the operating height of the actuating means relative to the height of the spring-loaded terminal.
  • the arrangement of the second arm member at a second angle to the first arm member or causes the implementation is greater selectable compared to an actuating means, which arranged only the first approximately orthogonal to the clamping spring arm Arm part has.
  • electrical conductors with a larger conductor cross section can be arranged in the spring clip.
  • the spring-loaded terminal has a busbar with a contact tongue, which is arranged on a side wall of the spring cage.
  • the busbar is preferably made of a highly conductive material.
  • an inserted into the terminal compartment conductor is clamped in the clamping state between the clamping spring and the contact tongue, so that a secure contact between the electrical conductor and the busbar is made.
  • the contact tongues preferably extends into the bushing.
  • Fig. 1 the preferred spring cage 1 is shown. It is approximately U-shaped in cross-section and has a rear wall 11 and transversely to the rear wall 11 each have two side walls 12, 13, which are connected to each other via the rear wall 11. In addition, it has an advantageous, optional lower wall 14 transverse to the side walls 12, 13.
  • the rear wall 11, side walls 12, 13 and bottom wall 14 define a connection space 16 of the spring cage. 1
  • a clamping spring 2 On a side wall 13 of the spring cage 1, a clamping spring 2 is fixed.
  • the clamping spring 2 is approximately V-shaped. It is offered in the region of a bend about a pivot axis 20 and has a mounting arm 21, with which they the side wall 13 is arranged, as well as a Klemmfederarm 22, which projects into the connection space 16.
  • the clamping spring arm 21 is pivotable about the pivot spring axis 20 in and against a pivoting direction 63.
  • the Klemmfederarm 22 is adjusted during pivoting in the pivoting direction 63 against its restoring force, while it is returned to the pivoting direction 63 during pivoting.
  • the actuating means 3 which has a contact surface 31, with which it bears against the entire clamping spring arm 22 when actuated.
  • the actuating means 3 has an actuating arm 32 which connects an actuating head 33, on which the actuating means 3 can be actuated, to the contact surface 31.
  • the actuating arm 32 has a first arm part 321, which is arranged at a first angle 91 to the clamping spring arm 22.
  • the first arm portion 321 and the Klemmfederarm 22 are arranged approximately orthogonal to each other.
  • the actuating arm 32 has a second arm part 322, which is arranged at a second angle 92 to the first arm part 321.
  • a passage 34 is provided, through which an electrical conductor 4 in an insertion / insertion 61 in the connection space 16 of the spring cage 1 can be inserted.
  • connection space 16 it is pressed in the region of a nip against a busbar 5 or directly against the spring cage, which consists in the latter case of a highly conductive material, in particular metal.
  • the actuating head 33 here or preferably an engagement is provided which simplifies the actuation of the actuating means 3 with an actuating tool (not shown), for example a screwdriver.
  • the electrical conductor 4 shown has a wire 41, which is designed as a full conductor. In addition, it has a jacket 42.
  • the invention is also suitable for electrical conductors 4, which are designed as stranded conductors. If fuller conductors are used or contacted, the terminal point can be opened with them.
  • Fig. 1 (c) the arrangement of the clamping spring 2 and the actuating means 3 is shown schematically.
  • the angle between the insertion direction 61 and the arm part 321 is smaller here than a right angle.
  • this angle is between 50 ° and 60 °, here at 55 °.
  • the second angle 92 between the first and second arm part 321, 322 allows the spring-loaded terminal 1 to be constructed such that the contact surface 31 engages approximately half the length L of the clamping spring arm 22 when actuated.
  • the Fig. 2 shows the electrical conductor 4 when inserted into the spring-loaded terminal 10, the clamped in the spring terminal 10 electrical conductor 4, and the electrical conductor 4 during removal from the spring clamp 10th
  • Fig. 1 Opposite the Fig. 1 is in the Fig. 2 on the spring cage 1 also a bus bar 5 is arranged.
  • the bus bar 5 is integrally formed and has a base 51 and a contact tongue 52, and here two contact feet 53.
  • the base 51 extends approximately parallel to the lower wall 14 of the spring cage 1, while the contact tongue 52 is provided transversely to the base 51, and in Terminal space 16 is arranged on the clamping spring 2 opposite side wall 12 of the clamping cage 1.
  • Fig. 2 (a) shows the insertion of the electrical conductor 4 in the spring-loaded terminal 10th
  • the clamping spring 2 is initially in the ground state G.
  • the insertion takes place in a Einschiebecardi 61st
  • the electrical conductor 4 is guided through the passage 34 of the actuating means 3.
  • the bushing 34 lies in the insertion direction in front of or above the clamping spring arm 2.
  • the conductor diameter is corresponding or very small, it can be passed through the passage 34 and act directly on the Klemmfederarm 22, wherein he presses the Klemmfederarm, thereby opening the nip.
  • the Klemmfederarm 22 is pivoted against its restoring force in the pivoting direction 63 until it is between an open end 221 (s. Fig. 1 (b) ) of the Klemmfederarms 22 and the contact tongue 52 is arranged. Due to the restoring force of the clamping spring 2, the electrical conductor 4 is clamped in this clamping state K against the pivoting direction 63 between the Klemmfederarm 22 and the contact tongue 52. He is at the contact tongue 52 and contacted them electrically.
  • the conductor 4 first encounters, during insertion, an area 35 of the lead-through 34 which is angled at an angle ⁇ to the conductor insertion direction 61, via which conductor 4 then "indirectly” presses on the clamping spring arm 22, whereby it is pressed down, whereby the clamping point opens, so that the conductor 4 can be guided further into the nip.
  • the actuating means 3 is moved by the conductor 4 with.
  • the passage 34 is preferably circumferentially closed so that it is particularly stable. This is not mandatory.
  • the web 30 limits it to the side facing away from the actuating head 33 lying side of the actuating means. 3
  • Fig. 2 (a) shows the jammed in the spring terminal 10 electrical conductor 4.
  • the clamping spring 2 is thereby in the clamping state K.
  • the angle ⁇ is preferably - but not mandatory - between 15 and 50 °. Here it is 32 °.
  • actuating means 3 is provided.
  • Fig. 2 (c) shows the removal on actuation of the actuating means 3.
  • the clamping spring 2 is pivoted against its restoring force in the pivot direction 63 and is therefore in the release state ⁇ . It is visible that the pivoting is limited by a stop 15 of the spring cage 1, which projects into the connection space 16.
  • the open end 221 of the Klemmfederarms 22 is no longer on the electrical conductor 4, so that it is the spring terminal 10 in a removal direction 62 against the insertion direction 61 can be removed.
  • Fig. 3 shows an interior 81 of a housing 8 of the spring-loaded terminal 1.
  • the clamping spring 2 the busbar 5 and the actuating means 3 of Fig. 2 arranged.
  • an insertion opening 82 is provided for insertion of the electrical conductor 4.
  • the housing 8 has a guide channel 83 for the actuating means 3.
  • a tongue 84 is arranged at the insertion opening 82, which limits a displacement of the actuating means 3, so that the bushing 34 is arranged in the ground state G of the clamping spring 2 below the insertion opening 82.
  • the electrical conductor 4 is guided automatically when inserted into the spring-loaded terminal 10 through the passage 34.
  • the clamping spring 2 has everywhere about the same width B (s. Fig. 2 (a) ) on. This width B is therefore decisive for the overall depth T of the spring-loaded terminal 10.
  • the bus bar 5 at its free end on the contact tongue 52, which is arranged on a side wall of the spring cage 1, wherein the contact tongue 52 and / or the side wall of the spring cage into the passage 34 protrude.
  • the width of the contact tongue 52 and the side wall of the spring cage 1, in each case in the region which projects into or through the passage 34, is smaller than in each case below the passage 34.
  • the passage 34 can slide so well on the contact tongue 52 and guide the actuating element or means 3 in this area with.
  • the implementation has two parallel aligned webs 36, 37, which are connected by the web 30 on the one hand and by the other actuator arm 32 on the other hand with each other.
  • the clamping spring 2 preferably protrudes with its bend beyond the upper edge of the clamping cage or spring cage 11, so that it can be made relatively short in the insertion direction.
  • an operating height H of the actuating head 33 can be adjusted by adjusting the first and / or second angle 91, 92.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP13783518.7A 2012-11-09 2013-10-24 Federkraftklemme mit einem betätigungsmittel Active EP2917970B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202012104326 2012-11-09
DE202012104408.0U DE202012104408U1 (de) 2012-11-09 2012-11-15 Federkraftklemme mit einem Betätigungsmittel
PCT/EP2013/072243 WO2014072182A1 (de) 2012-11-09 2013-10-24 Federkraftklemme mit einem betätigungsmittel

Publications (2)

Publication Number Publication Date
EP2917970A1 EP2917970A1 (de) 2015-09-16
EP2917970B1 true EP2917970B1 (de) 2016-12-28

Family

ID=50182051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13783518.7A Active EP2917970B1 (de) 2012-11-09 2013-10-24 Federkraftklemme mit einem betätigungsmittel

Country Status (4)

Country Link
EP (1) EP2917970B1 (zh)
CN (1) CN104769779B (zh)
DE (1) DE202012104408U1 (zh)
WO (1) WO2014072182A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11799215B2 (en) 2018-09-26 2023-10-24 Weidmüller Interface GmbH & Co. KG Electrical plug connector

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CN106486792B (zh) * 2015-08-25 2019-05-14 町洋企业股份有限公司 具扣合结构的端子座
US9466911B1 (en) 2015-10-16 2016-10-11 Dinkle Enterprise Co., Ltd. Terminal base having fastening structure
EP3382807A1 (en) 2015-10-21 2018-10-03 Dinkle Enterprise Co., Ltd. Terminal base having fastening structure
EP3206259B1 (fr) * 2016-02-15 2020-12-30 ABB Schweiz AG Contacteur électrique avec une borne de connexion à pression montée dans un boitier à deux parties assemblées suivant la direction d'insertion d'un conducteur électrique dans la borne de connexion
LU93183B1 (de) * 2016-08-25 2018-03-28 Phoenix Contact Gmbh & Co Kg Intellectual Property Licenses & Standards Anschlussklemme
CN109216953B (zh) * 2017-07-04 2024-07-16 泰科电子(上海)有限公司 连接器
DE102018109545A1 (de) * 2018-04-20 2019-10-24 Phoenix Contact Gmbh & Co. Kg Federkraftklemmanschluss und Leiteranschlussklemme
DE102019106353B4 (de) * 2019-03-13 2023-05-25 Phoenix Contact Gmbh & Co. Kg Leiteranschlussklemme mit einem Betätigungselement mit angepasster Druckfläche
US11757214B2 (en) * 2022-01-28 2023-09-12 Dinkle Enterprise Co., Ltd. Terminal block with handle structure

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Publication number Priority date Publication date Assignee Title
US11799215B2 (en) 2018-09-26 2023-10-24 Weidmüller Interface GmbH & Co. KG Electrical plug connector

Also Published As

Publication number Publication date
EP2917970A1 (de) 2015-09-16
DE202012104408U1 (de) 2014-02-10
CN104769779A (zh) 2015-07-08
CN104769779B (zh) 2017-10-20
WO2014072182A1 (de) 2014-05-15

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