EP2131449A1 - Borne unique - Google Patents

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Publication number
EP2131449A1
EP2131449A1 EP09005926A EP09005926A EP2131449A1 EP 2131449 A1 EP2131449 A1 EP 2131449A1 EP 09005926 A EP09005926 A EP 09005926A EP 09005926 A EP09005926 A EP 09005926A EP 2131449 A1 EP2131449 A1 EP 2131449A1
Authority
EP
European Patent Office
Prior art keywords
clamping
spring
single terminal
clamping body
terminal according
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.)
Granted
Application number
EP09005926A
Other languages
German (de)
English (en)
Other versions
EP2131449B1 (fr
Inventor
Hermann Stadler
Frank Walter
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.)
MC Technology GmbH
Original Assignee
MC Technology 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 MC Technology GmbH filed Critical MC Technology GmbH
Publication of EP2131449A1 publication Critical patent/EP2131449A1/fr
Application granted granted Critical
Publication of EP2131449B1 publication Critical patent/EP2131449B1/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

Definitions

  • Single terminals are known with a clamping body, which is formed frame-shaped or circumferentially closed and made of an electrically conductive material, wherein at least one terminal pin is integrally formed on an outer side of the clamping body.
  • Such individual terminals are, for example, in the not yet published patent applications DE 10 2007 004 587 or DE 10 2007 004 545 disclosed.
  • the individual terminals described therein have a through bore with an internal thread in one side of the clamp body, through which a clamping screw can be screwed into the clamp body to clamp a guided inside the clamp body electrical conductor and an electrically conductive connection between the electrical conductor and to achieve a conductor plate electrically connected to the terminal body via the terminal pin.
  • the object of the invention is to provide a single terminal, which is simple and user-friendly.
  • the individual terminal according to the invention has a clamping body, which is frame-shaped and made of an electrically conductive material, wherein arranged on an outer side of the clamping body at least one connection pin, in particular integrally formed, and wherein according to the invention in the clamping body, a clamping spring is inserted.
  • the clamping spring is arranged such that a to be connected electrical conductor can be inserted against the spring action of the clamping spring in the clamping body and is clamped between the clamping spring and the clamping body.
  • the clamping spring ensures the electrically conductive contact between the electrical conductor and the clamping body.
  • the connection of an electrical conductor in such a single terminal is much faster to perform, since the electrical conductor must be inserted only against the spring action and is not consuming to screw.
  • the clamping body is formed in one piece and is particularly preferably produced by machining, in particular by machining processes on a solid block of material. In this way, a simple and cost-effective production of the clamp body is possible.
  • the clamping body is made of brass, since this material is inexpensive, but has good electrically conductive properties.
  • the clamping body preferably has a wall thickness of more than 0.5 mm, in particular more than 1 mm.
  • the clamping body is thus stable enough to be able to form the housing of the single terminal at the same time, so that no additional housing, in particular no insulating housing, is needed around the clamping body are and the single terminal is thus particularly simple and inexpensive.
  • the clamping spring is designed as a leaf spring or as a cage tension spring, since such springs can be easily and inexpensively manufactured and easily arranged in the clamping body.
  • such springs provide a secure mounting option of an electrical conductor to be connected.
  • the clamping spring has a support leg and a clamping leg, wherein the clamping spring rests with the support leg of the clamping body. On the support leg thus a large contact surface between the clamping spring and the clamping body is made possible.
  • the clamping spring is made of an electrically conductive material in order to ensure the electrically conductive contact between the electrical conductor to be connected and the clamping body not only directly on contact of the electrical conductor to an inner surface of the clamping body, but in addition via the clamping spring.
  • the clamping spring is made of a material with good spring properties in order to ensure reliable clamping of the connected electrical conductor at any time.
  • the clamping spring is preferably caulked in the clamping body, embossed, welded, riveted or soldered to prevent the clamping spring from slipping in the clamping body or even detached from the clamping body.
  • at least for fixing the clamping spring in the clamping body to the clamping body arranged an element which fixes the applied clamping spring after folding or deformation.
  • the clamping spring has a structure with which it positively engages in a correspondingly shaped structure of the clamping body in order to prevent loosening or slipping of the clamping spring in the clamping body. This structure is preferably arranged in the support leg of the clamping spring, since this already has a large-area contact surface to the clamping body.
  • FIGS. 1a and 1b show a first embodiment of a single terminal 10 with a clamping body 20 and a clamping spring 30.
  • the clamping body 20 is formed like a frame. This means that the clamping body 20 is formed circumferentially closed.
  • the clamping body 20 has upper side 21, a lower side 22 arranged parallel thereto, and two side surfaces 23, 24 which extend perpendicularly thereto and connect the upper side 21 and the lower side 22, which has an inner space 26 enclose, wherein the interior 26 thus forms a passage opening through the clamping body 20.
  • two connection pins 27 are arranged on the outward facing surface of the bottom 22.
  • the clamping body 20 is formed in one piece and can, for example, be produced by cutting processes on a block of solid material.
  • the clamping body 20 is made of an electrically conductive material, for example. Of brass.
  • the top 21, the bottom 22 and the two side surfaces 23, 24 each have a wall thickness of at least 0.5 mm, preferably more than 1 mm.
  • the single terminal 10 has no insulating housing.
  • the clamping spring 30 is inserted.
  • the clamping spring 30 is formed in particular as a leaf spring.
  • the clamping spring 30 has a support leg 32 and a clamping leg 34, wherein the included between the support leg 32 and the clamping leg 34 angle is less than 90 °.
  • the support leg 32 is, as in particular in FIG. 1b can be seen on the inner surface of the top 21 of the clamp body 20 at. Due to the included between the support leg 32 and the clamping leg 34 angle of less than 90 ° of the clamping leg 34 projects into the interior 26 and traverses this starting from the top 21 such that a free end 34a of the clamping leg 34 on the inner surface of the bottom 22 to lie comes. So that the clamping spring 30 is fixed in the clamping body 20, the two side surfaces 23, 24 are stamped against each other after insertion of the clamping spring 30.
  • the electrical conductor with its free, stripped End pushed into the interior 26 of the clamp body 20 such that the clamping leg 34 is pivoted against its spring action against the support leg 32, wherein in particular the enclosed between the support leg 32 and the clamping leg 34 angle is reduced.
  • the spring action of the clamping leg 34 presses the electrical conductor against the inside of the underside 22 of the clamping body 20, so that the electrical conductor between the free end 34a of the clamping spring 30 and the bottom 22 is clamped.
  • An electrically conductive contact between the electrical conductor and the connection pins 27, which, for example, are in electrically conductive contact with conductor tracks of a printed circuit board, can thus be produced via the electrically conductive clamping body 20.
  • the electrically conductive contact between the electrical conductor and the clamping body 20 is further improved, although the clamping spring 30 is made of an electrically conductive material.
  • FIGS. 2a and 2b a second embodiment of the single terminal 10 is shown.
  • the clamping body 20 of the second embodiment of the single terminal 10 differs from that in the FIGS. 1a and 1b illustrated first embodiment, characterized in that the side surfaces 23, 24 are formed over the top 21 out in each case a web 40 extended.
  • the clamping spring 30 is inserted into the clamping body 20 such that the support leg 32 with his the clamping leg 34 facing inner surface rests on the outer surface of the upper side 21 of the clamping body 20 and the clamping leg 34 engages around the top 21 to project into the interior 26 can.
  • the top 21 thus forms a stop when inserting the clamping spring 30 in the clamping body 20 and prevents slipping out of the clamping spring 30 in one direction.
  • the clamping spring 30 can be fixed in particular in that the webs 40 after insertion of the clamping spring 30 in the clamping body 20 as in FIG. 2b shown inwardly formed on the top 21 or folded, in order to fix the support leg 32 of the clamping spring 30 in this way.
  • the support leg 32 is held by clamping between the folded webs 40 and the outer surface of the upper side 21 of the clamping body 20.
  • FIG. 3 shows a third embodiment of the single terminal 10, the clamping body 20 of the clamping body 20 of the in the FIGS. 1a and 1b differs in that the side surfaces 23, 24 are also extended beyond the top 21 out in webs 50, but at the free ends of the webs 50 each have a projection 52 is disposed on the mutually facing surfaces of the side surfaces 23, 24, so that an undercut 54 is formed on each web 50.
  • the two undercuts 54 form a type of guide rail, between which the support leg 32 can be inserted on the top 21 such that the clamping leg 34 facing surface of the support leg 32 comes to rest on the outside of the top 21, while the clamping leg 34 to the Top 21 around around in the interior 26 is guided.
  • the projections 52 can be deformed so that they are pressed onto the clamping spring 30 to the Support leg 32 clamped between the projections 52 and the top 21 of the clamp body 20 to keep.
  • FIG. 4 shows a fourth embodiment of the single terminal 10, which differs from the in FIG. 3 3, characterized in that only one of the two side surfaces 23, 24, in this case the side surface 23, is extended beyond the upper side 21 into a web 60, wherein at the free end of the web 60 a projection 62 is arranged substantially at right angles. which has almost the same surface as the top 21, so that between the projection 62 and the top 21 of the clamp body 20, a guide slot 64 is formed, in which the support leg 32 of the clamping spring 30 can be inserted.
  • the clamping leg 34 of the clamping spring 30 in turn engages around the upper side 21 in the interior 26 of the clamping body 20.
  • the projection 62 can be deformed or bent in such a way that it towards the support leg 32nd the clamping spring 30 is pressed and thus fixed the support leg 32 by clamping.
  • FIG. 5 shows a fifth embodiment of the single terminal 10.
  • the clamping spring 30 is arranged on the clamp body 20, that not as in the in the FIGS. 1a and 1b shown first embodiment, the clamping leg 34 facing away from the surface of the support leg 32 rests against the inner surface of the top 21, but that the clamping leg facing surface of the support leg 32 of the clamping spring 30 rests on the outside of the surface 21.
  • the clamping spring 30 in the support leg 32 has a welding or soldering point 70.
  • FIG. 6 illustrated sixth embodiment of the single terminal 10 differs from that in FIG. 5 illustrated fifth embodiment in that instead of a welding or soldering point, the clamping spring 30 is riveted to the clamping body 20.
  • a structure, in particular a rivet peg 80 is arranged on the outer surface of the upper side 21 of the clamping body 20, which engages in a corresponding structure of the support leg 32, in particular a bore 82 accordingly.
  • the corresponding structures between the clamping body 20 and the clamping spring 30 may also be various interlocking interlocking structures or locking mechanisms, via which the clamping spring 30 can be fixed to the clamping body 20.
  • these structures can also be arranged on the inside of the upper side 21 of the clamping body 20 and the clamping leg 34 facing away from the surface of the support leg 32 of the clamping spring 30 to fix the clamping spring 30 to the clamping body 20.
  • a seventh embodiment of the single terminal 10 is shown, the clamping body 20 of the clamping body 20 of the in the FIGS. 1a and 1b 1, characterized in that at the side edges of the side surfaces 23, 24 in the direction parallel to the side surfaces 23, 24 and parallel to the top 21 on each of the side surfaces 23, 24, a web 90 is arranged, which in particular forward, ie along the insertion direction of an electrical conductor to be connected protrudes, and which in a first circumferential or embossing process in each case to the other web to be bent, whereby during insertion of the clamping spring 30 such that the clamping leg 34 facing away from the surface of the support leg 32 comes to rest on the inside of the top 21 of the clamping body 20, a slot stop for the clamping spring 30 results.
  • the two bent webs 90 are encompassed by the clamping leg 34 such that subsequently the clamping leg 34 projects into the interior 26 of the clamping body 20, in particular in FIG. 7c seen.
  • a fixing of the clamping spring 30 can be done by stamping the side surfaces 23, 24.
  • FIGS. 8a and 8b an eighth embodiment of the single terminal 10 is shown, wherein the clamping body 20 identical to the clamping body 20 of the in FIGS. 1a and 1b However, the clamping spring 30 is in turn arranged on the clamping body 20 such that the clamping leg 34 facing surface of the support leg 32 is disposed on the outer surface of the upper side 21 of the clamping body 20.
  • the clamping spring 30 in this case additionally has a bent out of the clamping leg 34, in the direction of the support leg 32 straightened tab 102 which rests on the inner surface of the top 21, while the support leg 32 has a bent toward the clamping leg 34 free end 100, which protrudes beyond the upper side 21, so that the clamping spring 30 can be fixed in a clamping manner on the upper side 21 via the free end 100 and the tab 102.
  • FIGS. 9a and 9b a ninth embodiment of a single terminal 110 with a clamping body 120 and a clamping spring 130 is shown.
  • the clamping body 120 is frame-shaped, ie formed circumferentially closed.
  • the clamping body 120 has an upper side 121, a lower side 122 arranged parallel thereto, and two perpendicularly extending ones, the upper side 121 and the bottom 122 connecting side surfaces 123, 124 on.
  • On the outward facing surface of the bottom 212 two connection pins 127 are arranged.
  • the clamping body 120 is formed in one piece and can be produced, for example, by cutting processes on a block of solid material.
  • the clamping body 120 consists of an electrically conductive material, for example. Of brass.
  • the top 121, the bottom 122 and the two side surfaces 123, 24 each have a wall thickness of at least 0.5 mm, preferably more than 1 mm.
  • the single terminal 110 does not have an insulating housing.
  • an intermediate floor 125 is arranged, so that a first inner space 126a is formed between the upper side 121 and the intermediate floor 125 and a second inner space 126b is formed between the intermediate floor 125 and the lower side 122. Both interior spaces 126a, 126b each form a passage opening through the clamp body 120.
  • the clamping spring 130 is inserted, which is in the present case designed as a cage tension spring.
  • the clamping spring 130 has a support leg 132 and a clamping leg 134, which are connected together at one end, so that the support leg 132 has a free end 132a and the clamping leg 134 has a free end 134a.
  • the clamping leg 134 has an opening 135 in its free end 134a, through which the free end 132a of the support leg 132 engages.
  • the support leg 132 rests with its outer surface on the surface 121 of the intermediate bottom 125 facing the upper side.
  • the clamping leg 134 passes through the first inner space 126 a to the inner surface of the upper side 121, but there usually only applied when no electrical conductor is connected. Starting from the inner surface of the upper side 121 of the clamping body, the clamping leg 134 extends back in the direction of the intermediate bottom 125, where its breakthrough is penetrated by the support leg 132.
  • the free end 132 a of the support leg 132 and the intermediate bottom 125 which protrudes forward over the top 121 and the bottom 122 passes through the opening 125 of the free end 134 a of the clamping leg 134th
  • the clamping spring 30 can be fixed in the clamping body 20, for example by stamping the side surfaces 123, 24 or by other of the aforementioned fixing mechanisms.
  • the clamping leg 134 is pressed in the direction of the underside 122 in such a way that the opening 135 lies in front of the second internal space 126b and the electrical conductor can be inserted through the opening 135 into the second internal space 126b of the clamping body 120. If the clamping spring 130 is relaxed, the clamping leg 134 pulls the electrical conductor via the opening 135 against the underside 122 facing surface of the intermediate bottom 125, so that in this way an electrically conductive contact between the electrical conductor and the clamping body 120 is produced. To the single terminal 110, only a single electrical conductor can be connected.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
EP09005926A 2008-06-05 2009-04-29 Borne unique Active EP2131449B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008026805A DE102008026805B4 (de) 2008-06-05 2008-06-05 Einzelklemme

Publications (2)

Publication Number Publication Date
EP2131449A1 true EP2131449A1 (fr) 2009-12-09
EP2131449B1 EP2131449B1 (fr) 2011-10-26

Family

ID=40736019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09005926A Active EP2131449B1 (fr) 2008-06-05 2009-04-29 Borne unique

Country Status (4)

Country Link
US (1) US8083556B2 (fr)
EP (1) EP2131449B1 (fr)
AT (1) ATE531100T1 (fr)
DE (1) DE102008026805B4 (fr)

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Publication number Priority date Publication date Assignee Title
DE102013101408A1 (de) * 2013-02-13 2014-08-28 Wago Verwaltungsgesellschaft Mbh Federkraftklemmelement und Verbindungsklemme
DE102013101408B4 (de) * 2013-02-13 2021-01-14 Wago Verwaltungsgesellschaft Mbh Federkraftklemmelement und Verbindungsklemme

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US8083556B2 (en) 2011-12-27
DE102008026805A1 (de) 2009-12-10
US20090305581A1 (en) 2009-12-10
EP2131449B1 (fr) 2011-10-26
ATE531100T1 (de) 2011-11-15
DE102008026805B4 (de) 2011-01-13

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