EP2457288A1 - Dispositif de raccordement pour conducteur - Google Patents

Dispositif de raccordement pour conducteur

Info

Publication number
EP2457288A1
EP2457288A1 EP10734953A EP10734953A EP2457288A1 EP 2457288 A1 EP2457288 A1 EP 2457288A1 EP 10734953 A EP10734953 A EP 10734953A EP 10734953 A EP10734953 A EP 10734953A EP 2457288 A1 EP2457288 A1 EP 2457288A1
Authority
EP
European Patent Office
Prior art keywords
clamping
leg
connecting device
clamping cage
cage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10734953A
Other languages
German (de)
English (en)
Inventor
Walter Hanning
Stephan Fehling
Herbert Fricke
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 EP2457288A1 publication Critical patent/EP2457288A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01R4/4846—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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4833—Sliding arrangements, e.g. sliding button

Definitions

  • the invention relates to a connecting device for conductors according to the preamble of claim 1.
  • connection devices are known in various designs. Particular attention has been given for some years back to the already long-known connection devices that allow a tool-free BeClten (push-in). Purely by way of example in this context to DE 30 19 149 C2, DE 201 17 770 Ul and DE 20 2006 009 460 Ul referenced. These documents show each screwless terminals with a clamping spring (compression spring), which serves to clamp a conductor in a nip between a free leg of the compression spring and a busbar. Hereinafter, this type of contacting is also referred to briefly as "direct plug-in technology.” It is also known that the connection device
  • connection device is the object of the invention DPg.
  • the invention solves this problem by the subject matter of claim 1 and by the subject matter of claim 15.
  • the U-profile of the clamping cage of the feature c) preferably consists of a very thin spring plate and surrounds the clamping spring as a unit. The width can be kept very low due to the existing thin steel spring walls of the terminal cage.
  • the clamping spring is well guided and protected by the side walls or legs of the U-profile. When tensioning the clamping spring - by Besc ariseten with the conductor - the forces in the clamping cage by the design of the feature d) are taken such that no additional force component is created, which twists the clamping spring.
  • the clamping spring therefore advantageously has no opening force component on the clamping cage.
  • the U-profile essentially absorbs only tensile and compressive forces.
  • clamping spring and the clamping cage in one piece from a sheet metal blank.
  • a material is used which has good resilient and good electrically conductive properties.
  • Fig. Ia, b is a perspective view of a connector used in an insulating housing and a section through the arrangement of Fig. Ia;
  • FIG. 2a is a perspective view of the connection device of FIG. 1;
  • FIG. 2b shows a perspective view of a clamping cage of the connection device from FIG. 1;
  • Fig. 2c is a perspective view of a clamping spring of the connection device of Fig. 1;
  • FIG. 3 shows a perspective view of a connecting device used in an insulating housing designed as a terminal block housing
  • FIG. 4 is a perspective view of a series of connection devices of the type of Figure 1 on a circuit board.
  • Fig. 5a-d is a perspective view of another embodiment of a
  • Fig. 5a shows the connection device without plugged-in conductor and Fig. 5b shows a section through Fig. 5a, and wherein Fig. 5c shows the connection device with plugged-in conductor and Fig. 5d shows a section through Fig. 5c;
  • Fig. 6a, b is a perspective view of another embodiment of a connection device with inserted conductor, wherein Fig. 6b shows a section through the Fig. 6a;
  • FIG. 7a, b are each a perspective view of the connecting device used in an insulating material of Figure 6, wherein the insulating material of Figure 7b is designed as a terminal block housing ..;
  • FIG. 8a-e is a perspective view of another embodiment of a
  • FIG. 8a shows the connection device without plugged-in conductor and Fig. 8b shows a section through Fig. 8a, wherein Fig. 8c shows the connecting device and a plugged into the connecting device conductor, wherein FIG 8d shows the connection device with the conductor inserted, and Fig. 5e shows a section through Fig. 5d;
  • FIG. 9a, b are each a perspective view of the connecting device used in an insulating material of Figure 8, wherein the insulating material of Figure 9b is designed as a terminal block housing ..;
  • 10a-c is a perspective view of another embodiment of a
  • Fig. 8a shows a section through the connecting device and a Conssteckenden in the connecting device conductor
  • Fig. 8b shows the section through the connection device with the inserted conductor
  • Fig. 8c the connection device with plugged in conductor
  • 1 la-c is a perspective view of another embodiment of a
  • FIG. 11a shows the connection device without the ladder inserted
  • FIG. 1b shows a section through FIG. 1a
  • FIG. 11c shows the connection device with the conductor inserted
  • FIG. 12a, b are each a perspective view of the connecting device used in an insulating material of FIG. 11, wherein the insulating material of FIG. 1 Ib is designed as a terminal block housing.
  • Fig. 1 shows an insulating material 1, in which a connecting device 2 according to the invention is used.
  • the connecting device 2 has a preferably not circumferentially closed clamping cage 3, acting as a compression spring clamping spring 4 and optionally an actuating lever 5 for opening the nip in particular for switching off.
  • the clamping spring 4 also acts as an element which is designed to conduct electrical current.
  • the clamping cage 3 is formed as a U-profile (see also Fig. 2b), which has a base leg 6 and two at right angles to the base leg 6 and mutually parallel longitudinal leg 7, 8.
  • the longitudinal legs 7, 8 are longer than the base leg 6, preferably they are more than two times, more preferably more than three times as long as the base leg 6.
  • the U-shaped clamping cage 3 is open on three sides. An open side is opposite to the base leg 6 extending side 9, the other two open sides are the Einsteckseite 10 and the Einsteckseite opposite base side 11.
  • the clamping cage 3 is preferably made of a spring plate. This spring plate can be made very thin, which makes it possible to give the entire connection device a particularly narrow configuration perpendicular to the image plane of Fig. Ib.
  • the spring plate has a thickness of less than 0.5 mm and more preferably a thickness of less than 0.3 mm.
  • Suitable mate- materials for the production of the spring plate are spring steels or other spring materials, which may optionally be designed to be electrically conductive well.
  • the clamping spring 4 has (see FIGS. 1 b and 2 c) at least one fastening limb 12 with which it is fixed to the clamping cage 3 and a contact leg 14 connected to the fastening limb 12 via a bend 13.
  • the fastening leg 12 extends at an angle to the conductor insertion direction X and to the base leg 6 of the clamping cage 3.
  • the fastening leg 12 preferably encloses an angle ⁇ with the base leg or the conductor insertion direction X, which is between 20 ° and 70 °, preferably between 30 ° and 60 ° lies.
  • the mounting leg 12 is aligned obliquely to autismeinsteckutter X.
  • the fastening leg 12 is fastened to the clamping cage 3 preferably in that the fastening leg has lateral projections 15, 16 (see again FIG. 2 c) which engage in corresponding openings 17 (FIG. 2 b) in the two mutually parallel longitudinal limbs 7, 8. In particular, this engagement is latching.
  • the fastening leg in the case of the connecting devices of the enclosed figures extends laterally out of the interior of the clamping cage 3 through the open, side 9 facing away from the base leg 6, so that the bend 13 lies outside the clamping cage 3 in this case.
  • the bend is designed such that the clamping leg 14 is inclined to the conductor insertion direction X.
  • the angle ⁇ between the conductor insertion direction X and the clamping leg 14 is between 60 ° and 80 °.
  • the clamping leg 14 is preferably so long that, in the state in which no conductor 23 contacts again, it rests on the inner side of the base leg 6 or on an electrically conductive abutment element lying on its inside under slight pretension.
  • a conductor 23 is inserted into the clamping cage 3 in the direction X, this pushes the clamping leg 14 downwards or thereby also to the side, wherein the clamping leg 14 in the connected state, the conductor 23 against a busbar function performing electrically conductive designed abutment element.
  • This abutment element is in a preferred - but not mandatory - design around a contact leg 19, which is connected to the mounting leg 12 at its side facing away from the bend 13 side via a further bend 20.
  • the contact leg 19 is located on the inside of the base leg 6. It can also be fixed to this by means of one or more lateral lugs 21 in corresponding openings 22 in the clamping cage 3, preferably in turn latching. Purely by way of example, two of the openings 22 can be seen in FIG. 2a, although the contact leg 19 has only one such approach.
  • Fig. Ia shows the connection device 2 in the contacted state.
  • Fig. Ib shows the connecting device 2 in the non-contacted state, but indicated by the drawing of the conductor 23, as the conductor 23 would lie in the contacted state in the clamping cage 3.
  • the clamping leg 14 would press the conductor 23 against the contact leg 19 here.
  • the clamping leg 14 thus presses the conductor 23 against the abutment element in the contacted state, that is to say against the contact leg 19 according to FIG. 1b.
  • the clamping leg 14 thus presses the conductor 23 against the abutment element in the contacted state, that is to say against the contact leg 19 according to FIG. 1b.
  • the clamping cage 3 itself could consist of a resilient and electrically conductive material and thus even form the conductive abutment element.
  • This embodiment would be particularly material-saving (see Fig. 5, 6, 11).
  • a bus bar 32 formed separately from the clamping spring 4 as a conductive abutment element (see FIGS. 8, 10).
  • a soldering pin 24 is formed on the clamping spring 4, which extends outwardly from the base side 11 of the clamping cage 3, so that the connecting device 2 can be soldered in a simple manner to a printed circuit board 25 (see FIG. 4).
  • it could also have a soldering pad or a busbar or the like, for example in order to install it in a terminal block 26, see eg FIGS. 3, 7b, 9b, 12b, which purely by way of example fit the connection device 2 into a corresponding franking 27 illustrated in an insulating 1, but for the sake of simplicity, elements such as a busbar in the insulating material 1 are not shown.
  • the connecting device 1 is inserted into the insulating housing 1 which has a franking 27 for receiving the connecting device 2, which is designed such that it receives the clamping cage 3 and the bend 13 of the clamping spring 4.
  • the insulating housing 26 further has an insertion opening 28 for insertion of the conductor 23 and the already mentioned actuating pushbutton 5, which is laterally offset to the insertion opening 28 and allows the opening of the nip in particular for deactivation and possibly also for BeSlten.
  • the insulating housing 1, according to Fig. 1 further comprises an opening 29 through which the solder pin 24 extends from the insulating material to the outside.
  • the assembly of the clamping spring 4 and the clamping cage 3 can be used in various housings.
  • FIG. 5 shows an embodiment of a connecting device 2 according to the invention, in which the clamping spring 4, in contrast to the embodiment of FIG. 1, is formed integrally with the clamping cage 3.
  • Fig. 5c, d show the connection device 2 in the contacted state.
  • the clamping spring 4 has a fastening leg 12 and a clamping leg 14, which are connected to each other via a bend 13. Also in this embodiment, the bend 13 is designed such that the clamping leg 14 is arranged obliquely to the conductor insertion direction X.
  • the mounting leg 14 is also fixed to the base leg 6 via a further bend 20, wherein the mounting leg 12 with the base leg 6 and the Portereinsteckutter X has an angle ⁇ , so that it is aligned obliquely to autismeinsteckutter X.
  • the clamping spring 4 is disposed between the longitudinal legs 7, 8 of the clamping cage 3 and the bend 13 between the mounting leg 14 and the
  • Clamping leg 12 is provided so that the base leg 6 of the clamping cage 3 acts as an abutment element for an inserted into the connecting device 2 conductor 23. In contrast to the embodiment of Fig. 1, therefore, no additional contact leg 19 (see Fig. 1) is provided as an abutment element between the base leg 6 and the clamping leg 14.
  • a contact tulip 30 is integrally formed on one of the longitudinal legs 7, 8 of the clamping cage 3 also.
  • the contact tulip 30 has two opposite tulip legs 31, which are bent towards each other.
  • the clamping cage also assumes the power line function.
  • FIG. 7 shows the connection device 2 of the embodiment of FIG. 6 in an insulating material housing 1.
  • the insulating material housing of the embodiment of FIG. 7 also has a clearance 27 for receiving the connection device.
  • the franking 27 is here designed so that it receives the clamping cage 3 and the bend 20 of the clamping spring 4 between the mounting leg 12 and the base leg of the clamping cage 3.
  • this insulating housing 26 has an insertion opening 28 for insertion of the conductor 23 and the actuating lever 5.
  • the actuating lever 5 is arranged laterally offset to the insertion opening 28.
  • the insulation material housing 1 designed as terminal block housing 26 in FIG. 7b differs from the terminal block housing 26 of the embodiment of FIG. 4 primarily in the shape of the clearance 27 provided for receiving the connection device 2.
  • the embodiment of the connecting device 2 according to the invention shown in FIG. 8 has, in contrast to the connection devices 2 shown so far, a bus bar 32 as an abutment element. Therefore, the clamping spring 4 also has no contact leg 19 (see FIG.
  • This embodiment of FIG. 8 has the advantage that a higher-quality material, for example a copper-containing material, can be used for the busbar 32 than for the clamping cage 3, which is preferably made as a stamped part from a metal sheet and therefore very cost-effectively , Basically, however, an embodiment is conceivable in which the busbar 32 integral with the
  • Clamping cage 3 is formed.
  • the clamping cage 3 therefore does not take over the line of the current in this embodiment, but this function is taken over by the busbar 32.
  • the busbar 32 has on opposite sides lugs 33 which engage respectively in openings 34 of the longitudinal legs 7, 8 of the clamping cage 3, so that it is arranged between the longitudinal legs 7, 8 of the clamping cage 3 and mounted in the openings 34.
  • the clamping spring 4 of the embodiment of FIG. 8 analogous to the embodiments of FIGS. 5 and 6 is formed integrally with the clamping cage 3.
  • here forms the base leg 6 of the clamping cage 3, in contrast to the embodiments of FIGS. 5 and 6 at the same time the mounting leg 12. Since the busbar 32 is arranged here parallel to the base leg 6, which is
  • connection device 2 in contrast to the previously shown embodiments of the connection device 2 also arranged parallel and not oblique to the conductor insertion direction X.
  • FIG. 8 d shows the conductor 23 in the state inserted and contacting in the connecting device 2.
  • the busbar 32 has a contact tongue 35 which is bent outward at an angle ⁇ , in this case at right angles, so that it at least partially leaves the clamping cage 3 stands out.
  • connection device 2 of the embodiment of FIG. 8 is arranged in each case in an insulating material housing 1.
  • the franking 27 is each provided so that they see the clamping cage 3 and here the bend 13 between the base leg 6 of the clamping cage 3 and the clamping leg 14 of the
  • Clamping spring 4 receives.
  • the clearance 27 takes here also the contact leg 35 of the busbar 32.
  • connection device 2 of FIG. 9 in contrast to the previous embodiments of the plugged into the connection device 2 conductor 23 is passed through the actuating handle 5 therethrough.
  • FIG. 10 shows an embodiment according to the invention of a connection device 2 which, in addition to the clamping cage 3, has a separately produced busbar 32 and a separately produced clamping spring 4.
  • This embodiment has the advantage that the materials from which the respective components 3, 4, 32 are made, each according to their function are optimally selected. Therefore, for the busbar 32 is a good conductive material for the clamping spring 4, a material with good spring properties and for the clamping cage 3, a cost-effective but stable material used.
  • the busbar 32 extends at least partially parallel to the base leg 6 of the clamping cage 3 and acts as an abutment element for clamping the conductor 23 between the clamping leg 14 of the clamping spring 4 and the busbar 32nd Au.
  • this busbar 32 analogously to the busbar of the embodiment of FIG. 8 has a contact tongue 35 which projects at least partially out of the clamping cage 3.
  • the busbar 32 of this embodiment of Fig. 10 at an angle ⁇ , here at right angles, bent.
  • the clamping spring 4 of FIG. 10 on opposite sides of its mounting leg 12 each have a projection 15, 16 which engages in an opening 17 of one of the longitudinal legs 7, 8 of the clamping cage 3.
  • the clamping spring 4 is fixed between the longitudinal limbs 7, 8.
  • it has the clamping leg 14, which presses the inserted conductor 23 against the busbar 32.
  • a bend 13 is provided between the mounting leg 12 and the clamping leg 14.
  • the clamping leg 14 of FIG. 10 is arranged at an angle ⁇ and the fastening leg 12 of FIG. 10 at an angle ⁇ to the conductor insertion direction X.
  • clamping spring 4 of the embodiment of Fig. 10 is disposed almost completely within the clamping cage 3 and it extends between the mounting leg 12 and the clamping leg 14 partly parallel about the Portereinsteckutter X.
  • connection device 2 according to the invention of the embodiment of FIG.
  • clamping spring 4 formed integrally with the clamping cage 3.
  • the clamping spring 4 also the clamping leg 14, the mounting leg 12 and between the clamping leg 14 and the mounting leg 12, the bend 13, wherein both the clamping leg 14 at an angle ß, and the mounting leg 12 at an angle ⁇ to autismeinsteckutter X arranged are.
  • Clamping spring 4 also a bend 20 is provided, on which the clamping spring 4 is fixed in one piece with the base leg 6.
  • the embodiments differ in the form of the clamping spring 4. And that protrudes between the base leg 6 and the mounting leg
  • clamping spring 4 of FIG. 11 similar to the embodiments of FIGS. 1 and 10 on opposite sides of the mounting leg 12 each sets 15, 16, which engage in an opening 17 of a longitudinal leg 7, 8 and the clamping spring 4 on the mounting leg 12 support.
  • Two fastening knobs 36 are additionally provided on at least one of the longitudinal limbs 7, 8 such that the clamping cage 3 or the connecting device 2 is fastened by means of the fastening knobs 36 to a component, for example the insulating material housing 1 (see FIG. 12a) or a printed circuit board. can be anchored.
  • FIGS. 12a and b show the connection device 2 of FIG. 11 in each case in an insulating material housing 1.
  • the clearance 27 is provided here in such a way that it makes it possible to arrange the clamping cage 3 as well as the bend 13 provided between the fastening leg 12 and the clamping leg 14.
  • FIGS. 12 a and b also show the optional actuating pushbutton 5, which is arranged laterally offset from the insertion opening 28.
  • the Isolierstoffgeophuse 1 also have openings 29 for inserting the mounting studs 36 to anchor the clamping cage 3 in the insulating housing 1.

Landscapes

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

Abstract

L’invention concerne un dispositif de raccordement destiné en particulier à être agencé dans un boîtier en matériau isolant, et qui est configuré pour un branchement direct sans outil à un conducteur et présente les éléments suivants : une cage de serrage et un ressort de serrage pour le serrage fixe du conducteur pouvant être introduit dans une direction d’enfichage de conducteur dans la cage de serrage sur un élément de butée conducteur dans la cage de serrage, le ressort de serrage présentant au moins une branche de fixation et une branche de serrage reliée à la branche de fixation par un pliage. Le dispositif selon l’invention présente une des deux ou les deux caractéristiques suivantes : la cage de serrage est configurée sous la forme d’un profilé en U qui est constitué d’une tôle souple et/ou la branche de fixation est orientée à l’oblique par rapport à la direction d’enfichage du conducteur.
EP10734953A 2009-07-18 2010-07-12 Dispositif de raccordement pour conducteur Withdrawn EP2457288A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202009009831 2009-07-18
DE202010008028U DE202010008028U1 (de) 2009-07-18 2010-07-09 Anschlussvorrichtung für Leiter
PCT/EP2010/059982 WO2011009749A1 (fr) 2009-07-18 2010-07-12 Dispositif de raccordement pour conducteur

Publications (1)

Publication Number Publication Date
EP2457288A1 true EP2457288A1 (fr) 2012-05-30

Family

ID=43403012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10734953A Withdrawn EP2457288A1 (fr) 2009-07-18 2010-07-12 Dispositif de raccordement pour conducteur

Country Status (6)

Country Link
US (1) US8579651B2 (fr)
EP (1) EP2457288A1 (fr)
JP (1) JP5712417B2 (fr)
CN (1) CN102474018A (fr)
DE (1) DE202010008028U1 (fr)
WO (1) WO2011009749A1 (fr)

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US20120108099A1 (en) 2012-05-03
CN102474018A (zh) 2012-05-23
DE202010008028U1 (de) 2010-12-30
JP2012533839A (ja) 2012-12-27
WO2011009749A1 (fr) 2011-01-27
US8579651B2 (en) 2013-11-12
JP5712417B2 (ja) 2015-05-07

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