EP2162952A2 - Borne électrique de raccordement et de liaison - Google Patents

Borne électrique de raccordement et de liaison

Info

Publication number
EP2162952A2
EP2162952A2 EP08758671A EP08758671A EP2162952A2 EP 2162952 A2 EP2162952 A2 EP 2162952A2 EP 08758671 A EP08758671 A EP 08758671A EP 08758671 A EP08758671 A EP 08758671A EP 2162952 A2 EP2162952 A2 EP 2162952A2
Authority
EP
European Patent Office
Prior art keywords
leg
clamping
clamping spring
metal part
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.)
Granted
Application number
EP08758671A
Other languages
German (de)
English (en)
Other versions
EP2162952B1 (fr
Inventor
Udo Hoppe
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact 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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2162952A2 publication Critical patent/EP2162952A2/fr
Application granted granted Critical
Publication of EP2162952B1 publication Critical patent/EP2162952B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01R4/48275—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end with an opening in the housing for insertion of a release tool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets

Definitions

  • the invention relates to an electrical connection or connection terminal for connecting an electrical conductor, with a clamping spring and a metal part, wherein the clamping spring has a clamping leg and a plant leg, in the plant leg is formed a recess for insertion of the electrical conductor to be connected, the clamping leg and the plant leg of the clamping spring are bent towards each other so that the end of the clamping leg extends through the recess at the end of the clamping leg distal end of the recess a holding portion of the plant leg is punched and bent in the insertion direction of the electrical conductor to be connected, the metal part a contact leg , an opposite holding leg and a leg connecting the web, wherein the end of the clamping leg of the clamping spring and the contact leg of the metal part a spring terminal connection for the e forming the lektrischen conductor, and wherein the ends of the legs each having a fixing portion and extending the attachment portion of the contact leg opposite to the insertion direction of the electrical conductor to be connected through the recess.
  • an electrical connection terminal which has a U-shaped open clamping spring and designed as a corner bracket busbar piece.
  • the busbar piece has a holding leg arranged perpendicular to the conductor insertion direction and a contact leg, wherein a rectangular opening is formed in the holding leg through which the electrical conductor to be connected can be inserted.
  • the U-shaped clamping spring is inserted and held with the ends of its two legs in the opening so that the rear spring bow of the clamping spring is in Leiteinschreibungsraum before the opening and the clamping leg of the clamping spring presses an inserted electrical conductor against the contact legs, so that the Clamping spring and the busbar piece form a spring terminal connection.
  • loop-shaped clamping springs in electrical connection or connection terminals from the prior art, for example DE 197 11 051 A1 or DE 198 02 945 C2, are known, namely as so-called tension springs in tension spring clamps.
  • Spring-cage terminals have established themselves over time in addition to screw terminals on the market and millions of times used in particular as terminal blocks.
  • the advantage of the spring clips compared to the screw terminals is that spring clamp terminals allow faster and easier wiring.
  • To actuate the tension spring clamp requires only one operating tool, such as a screwdriver, which is inserted to open the terminal in an operating shaft. The tip of the screwdriver tensions the tension spring, which opens the clamping point.
  • a conductor to be connected can then be inserted through the recess in the clamping leg. After pulling out the screwdriver, the conductor is pulled through the lower edge of the recess against a busbar connected to the tension spring and thereby electrically contacted.
  • the known tension spring terminals differ in their design and in their function significantly from the connection or connection terminal described above.
  • the conductor to be connected pulled by the clamping leg against the busbar.
  • the conductor to be connected is pressed by the clamping leg against a region of the metal part.
  • an electrical connection or connection terminal described at the outset, from which the invention is based, is known from DE 10 2004 046 471 B3.
  • the clamping spring is not U-shaped - as in the known from DE 196 54 611 Al connection terminal - but loop-shaped, being arranged in the plant leg of the clamping spring, not parallel but substantially perpendicular to the insertion of the electrical conductor to be connected is a Recess is arranged for insertion of an electrical conductor to be connected.
  • the clamping leg and the abutment leg of the clamping spring are bent towards each other so that the end of the clamping leg extends through the recess.
  • the fixing of clamping spring and metal part takes place in that the clamping spring is fitted with its recess on the metal part.
  • two fastening sections are formed on the metal part, which are both inserted through the recess opposite to the insertion direction of the electrical conductor to be connected.
  • the present invention is therefore based on the object in the electrical connection or connection terminal described above to further improve the fixation of clamping spring and metal part. 5
  • This object is achieved according to the invention in the electrical connection or connection terminal described above in that the fastening portion of the retaining leg rests against the recess facing away from the outside of the holding portion of the abutment leg.
  • electrical terminal engages behind the attachment portion of the retaining leg in the connection or connection terminal according to the invention, not the holding portion of the abutment leg, but the attachment portion of the holding portion.
  • a locking projection and the holding portion of the abutment leg formed an opening so that engages in the assembled state of clamping spring and metal part of the locking projection into the opening and thereby fixes the position of the clamping spring additionally.
  • the latching projection in this case preferably has a bevel, so that a latching of the latching projection allows little effort, while a larger force is required to release the latching connection.
  • the fixation of the clamping spring on the metal part is preferably further increased in that the clamping spring is clamped in the assembled state in the manner of a press fit between the mounting portions of the contact leg and the retaining leg.
  • the end of the clamping leg of the clamping spring on the contact leg of the metal part that the holding portion of the support leg against the voltage applied to its outer B efestriens section of the retaining leg is pressed.
  • the holding portion is always pressed by the spring force of the clamping spring against the mounting portion of the retaining leg, even if no electrical conductor is inserted into the nip.
  • the contact pressure is increased even further, so that it can not come to an unwanted tilting of the clamping spring and thus to a release of the clamping spring from the metal part.
  • the proper position of the clamping spring on the metal part is additionally ensured that at the end of the retaining limb preferably two stops are formed, which are laterally spaced from the mounting portion of the retaining leg. In the assembled state of the clamping spring and metal part of the plant leg of the clamping spring can then rest against the stops, so that a tilting of the clamping spring in the direction of the metal part is prevented.
  • the clamping spring is thus securely fixed in its predetermined position on the one side by the fastening section of the contact leg extending through the recess and on the other side by the fastening section and the stops of the contact leg.
  • the fastening portion of the contact leg is bent such that the attachment portion forms an insertion funnel for the electrical conductor to be connected together with the end of the clamping leg of the clamping spring.
  • the electrical connection or connection terminal according to the invention can be mounted directly on a circuit board, in which case in particular the contact leg of the metal part or a plug part connected to the metal part is soldered to the circuit board.
  • the clamping spring and the metal part are preferably arranged in an insulating housing, wherein the insulating housing has a Porterein arrangementsöffhung for importing the electrical conductor to be connected and an actuating opening for insertion of an actuating tool. Due to the design of the housing, an additional fixation of the clamping spring and the metal part can be realized. In addition, too wide opening of the clamping spring and thus destruction of the clamping spring can be prevented by the formation of the actuating opening and the arrangement of corresponding projections.
  • the electrical connection or connection terminal can also be used for fine-wire flexible conductors in which an opening of the clamping spring by plugging the electrical see conductor is not possible.
  • an already clamped electrical conductor can again be easily released from the clamping point.
  • a kink is formed on the clamping leg of the clamping spring, which is aligned in the direction of the spring force of the clamping leg, so that the tip of the actuating tool to open the clamping spring can act on the kink.
  • the formed on the clamping leg kink allows a simpler engagement of the tip of the B etuschists tool on the clamping leg to open the clamping spring.
  • the insertion depth of the actuating tool required for completely opening the clamping spring can thereby be reduced into the actuating opening.
  • FIG. 1 shows an inventive electrical connection or connection terminal with an electrical conductor to be connected
  • FIG. 3 the clamping spring and the metal part of the electrical connection or connection terminal of FIG. 2, in the not yet assembled state.
  • the figures show a connection or connection terminal for connection of an electrical conductor 1 shown only in FIG. 1.
  • Essential components of the connection or connection terminal are a clamping spring 2 and a metal part 3, wherein in FIG. 3 the clamping spring 2 and the metal part 3 are shown in the not yet assembled state.
  • the clamping spring 2 consists of a clamping leg 4, a plant leg 5 and the clamping leg 4 and the plant leg 5 connecting back 6.
  • the plant leg 5 of the clamping spring 2 is substantially perpendicular to the insertion of the electrical conductor to be connected 1 aligned.
  • a recess 7 is formed for insertion of the conductor 1.
  • a holding portion 9 is punched out of the plant leg 5 and bent substantially perpendicular to the plant leg 5 in the insertion direction of the electrical conductor 1 to be connected.
  • the metal part 3 has a contact leg 10, an opposite holding leg 11 and a leg 12 connecting the legs 10, 11.
  • the contact leg 10 extends substantially parallel to the insertion direction of the electrical conductor 1 to be connected, so that the end 8 of the clamping leg 4 of the clamping spring 2 and the contact leg 10 of the metal part 3 form a spring terminal connection for the electrical conductor 1 to be connected.
  • the ends of the two legs 10, 11 each have a fixing portion 13, 14.
  • the attachment portion 13 of the contact leg 10 extends opposite to the insertion of the electrical conductor 1 to be connected through the recess 7 in the plant leg 5.
  • the attachment portion 14 of the retaining leg 11 is located on the recess 7 facing away from the outside of the holding portion 9, so that the attachment portion 14 does not extend through the recess 7 in the plant leg 5.
  • the fastening section 14 of the retaining limb 11 thus engages over the retaining section 9 of the abutment limb 5.
  • a locking projection 15 is formed on the mounting portion 14, which engages in the assembled state of clamping spring 2 and metal part 3 in an opening formed in the holding portion 9 opening 16 from above.
  • tilting of the clamping spring 2 in the direction of the arrow 17 shown in FIG. 2 is reliably prevented.
  • a tilting of the clamping spring 2 against the direction of the arrow 17 is prevented by the fact that at the end of the retaining leg 11, two stops 18 are formed, in which the bearing arm 5 of the clamping spring 2 rests in the properly assembled state.
  • the two stops 18 are arranged at the end of the retaining leg 11 laterally from the mounting portion 14, wherein the mounting portion 14 and the two stops 18 are integrally formed with the holding leg 11, namely by a punching and Bending process are bent from the holding leg 11.
  • the contact leg 5 of the clamping spring 2 is at an angle ⁇ less than 90 °, preferably at an angle ⁇ of about 75 ° to 85 ° to the contact leg 10 of the metal part 3.
  • the metal part 3 has a plug part 19 which can be plugged into a corresponding socket of a mating plug.
  • a plug part 19 which can be plugged into a corresponding socket of a mating plug.
  • at least one solder pin may be formed on the metal part, so that the electrical terminal can be used as a printed circuit board for printed circuits.
  • the terminal can be mounted directly on a printed circuit board.
  • the metal part instead of a plug part 19, can also have a socket part.
  • Fig. 2 it can be seen that the mounting portion 13 of the contact leg 10 is bent such that the mounting portion 13 forms an insertion funnel 20 for the electrical conductor 1 to be connected together with the end 8 of the clamping leg 4.
  • the tip of the electrical conductor to be connected 1 automatically positioned correctly whereby a simple and accurate connection of the conductor 1 to the electrical connection or connection terminal is possible.
  • the clamping spring 2 and the metal part 3 are arranged together in an insulating housing 21, wherein the insulating housing 21 has a conductor insertion opening 22 for insertion of the electrical conductor to be connected 1 and an actuating opening 23 for an actuating tool 24.
  • actuating tool 24 can be used, for example, the tip of a screwdriver. With the operating tool 24 can - as shown in Fig. 1 - are pressed onto the clamping leg 4 of the clamping spring 2, whereby the clamping spring 2 opens, so that an electrical conductor 1 can be inserted more easily or pulled out of the clamping spring 1.
  • a kink 25 is formed, which is aligned in the direction of the spring force of the clamping leg 4.
  • the tip of the actuating tool 24 can engage, whereby the maximum insertion depth of the actuating tool 24 required to completely open the clamping spring 2 is reduced in the actuating opening 23.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP08758671A 2007-05-25 2008-05-21 Borne électrique de raccordement et de liaison Active EP2162952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007024690A DE102007024690B4 (de) 2007-05-25 2007-05-25 Elektrische Anschluß- oder Verbindungsklemme
PCT/EP2008/004066 WO2008145291A2 (fr) 2007-05-25 2008-05-21 Borne électrique de raccordement et de liaison

Publications (2)

Publication Number Publication Date
EP2162952A2 true EP2162952A2 (fr) 2010-03-17
EP2162952B1 EP2162952B1 (fr) 2012-04-25

Family

ID=39714100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758671A Active EP2162952B1 (fr) 2007-05-25 2008-05-21 Borne électrique de raccordement et de liaison

Country Status (7)

Country Link
US (1) US7896686B2 (fr)
EP (1) EP2162952B1 (fr)
JP (1) JP2010528411A (fr)
CN (1) CN101595603B (fr)
AT (1) ATE555519T1 (fr)
DE (1) DE102007024690B4 (fr)
WO (1) WO2008145291A2 (fr)

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Also Published As

Publication number Publication date
DE102007024690B4 (de) 2009-06-04
US7896686B2 (en) 2011-03-01
ATE555519T1 (de) 2012-05-15
CN101595603A (zh) 2009-12-02
WO2008145291A2 (fr) 2008-12-04
JP2010528411A (ja) 2010-08-19
WO2008145291A3 (fr) 2009-04-02
DE102007024690A1 (de) 2008-12-04
CN101595603B (zh) 2012-09-05
EP2162952B1 (fr) 2012-04-25
US20100081346A1 (en) 2010-04-01

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