EP2324533A2 - Electrical connection terminal - Google Patents
Electrical connection terminalInfo
- Publication number
- EP2324533A2 EP2324533A2 EP09778155A EP09778155A EP2324533A2 EP 2324533 A2 EP2324533 A2 EP 2324533A2 EP 09778155 A EP09778155 A EP 09778155A EP 09778155 A EP09778155 A EP 09778155A EP 2324533 A2 EP2324533 A2 EP 2324533A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- clamping spring
- actuating
- metal part
- leg
- 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
Links
- 239000002184 metal Substances 0.000 claims abstract description 53
- 239000004020 conductor Substances 0.000 claims abstract description 46
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 description 3
- 241000724421 Agrostis castellana Species 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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
- H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
- H01R4/483—Pivoting arrangements, e.g. lever pushing on 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
- H01R4/48185—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
Definitions
- the invention relates to an electrical terminal with a clamping spring, with a metal part and with a clamping spring and the metal part receiving and at least oneêtein operationsöfmung having housing, wherein the clamping spring has a clamping leg, an actuating leg and the two legs connecting back, said clamping leg forms with the metal part a clamping point for a connected stripped conductor, wherein the clamping spring is pivotably mounted in the housing or the metal part such that the clamping spring from a first (open) position in a second (closed) position can be brought, and wherein a inserted through the conductor insertion opening stripped electrical conductor in the first position of the clamping spring is inserted into the nip without the clamping leg must be deflected against its spring force and in the second position of the clamping spring between the end e of the clamping leg and the metal part is electrically conductively clamped.
- connection terminals are known in a variety of embodiments.
- the connection terminals may be designed as a so-called print terminal for connecting an electrical conductor to a printed circuit board, or for connection to a further conductor as a terminal block.
- clamping springs both loop-shaped clamping springs, so-called tension spring terminals, as well as U-shaped or V-shaped Klemmfe- the so-called torsion springs used in the rigid conductor or provided with a wire end conductor directly, d. H. without the need to open the nip previously with a tool, can be plugged.
- the conductor to be connected is pulled by the clamping leg against a busbar.
- U-shaped or V-shaped clamping springs the conductor to be connected is pressed by the clamping leg against the busbar or a region of the metal part.
- actuate the tension spring clamp requires an operating tool, such as a screwdriver, to open the terminal in a Operating shaft is introduced.
- the tip of the screwdriver tensions the tension spring, which opens the clamping point.
- a conductor to be connected can then be inserted through a recess in the clamping leg and is clamped after pulling out of the actuating tool by the lower edge of the recess against a busbar connected to the tension spring.
- terminals are known in which an actuating element is arranged in the housing in order to facilitate the opening of the tension spring clamp.
- Such a terminal, with an actuating push-button is known for example from DE 10 2007 009 082 Al.
- the clamping spring which may also be referred to as a leg spring acts as a compression spring which presses a conductor to be connected by the spring force of the clamping spring against a contact element or a current bar and thereby the electrically conductive contact between the conductor and the contact element or the current bar manufactures.
- Such terminals are also referred to as direct plug connection terminals, since they allow the insertion of a rigid conductor or provided with a wire end conductor in the terminal point, without the clamping point must be opened with an operating tool (see brochure "terminal blocks CLIPLINE 2005” , Page 20 of Phoenix Contact GmbH & Co. KG).
- the clamping leg is deflected by the insertion of the conductor against its spring force; the insertion of the conductor is thus associated with a certain amount of force.
- a compromise must always be found between a high spring force desired for a good electrical contact on the one hand and a small spring force of the clamping leg facilitating the insertion of the conductor on the other hand.
- the clamping spring is rotatably arranged in the U-shaped metal part, for which purpose the clamping spring in the region of the back has two lateral projections, which in corresponding chenden recordings are stored in the U-legs of the metal part.
- the terminal known from DE 196 13 557 A1 has the advantage that the acting as a clamping leg shorter first leg of the clamping spring during insertion of the connected stripped conductor does not have to be deflected against its spring force, so that even a flexible conductor without the aid of a tool can be inserted into the electrical terminal.
- a disadvantage of this electrical terminal however, that the operation of the clamping spring is relatively cumbersome, especially when the terminal has relatively small dimensions.
- the present invention is therefore based on the object to provide an electrical terminal described above, which allows a simple, yet safe connection of an electrical conductor, in particular, the operation of the clamping spring should be particularly user-friendly.
- an actuating element is pivotally mounted in the housing such that the actuating element can be moved from a first position to a second position and that the clamping spring during pivoting of the actuating element from the first position to the second Position is pivoted from its first position to its second position.
- the electrical terminal according to the invention thus differs initially from the known from the prior art terminal that an additional actuator is pivotally mounted in the housing, wherein pivoting of the actuating element from a first position to a second position pivoting of the clamping spring causes the first position in the second position, in which an inserted into the terminal point stripped electrical conductor between the end of the clamping leg and the metal part is electrically conductively clamped.
- the actuator consists of an electrically non-conductive material, in particular of plastic, it can thereby reliably prevent accidental contact with live parts, in particular the clamping spring made of metal, since the actuating leg of the clamping spring does not have to be directly accessible from the outside.
- the actuating element is also pivotable from the second position to the first position, wherein the clamping spring is pivoted back from its second position to its first position during pivoting of the actuating element from the second position to the first position.
- the clamping spring and the actuating element are arranged and mounted in the housing such that the direction of rotation of the clamping spring and the direction of rotation of the actuating element during pivoting of the actuating element are opposite to each other. If the actuator is pivoted to close in a clockwise direction, so that the clamping spring is pivoted counterclockwise.
- the clamping force required for the clamping and thus for the electrically conductive contacting of the conductor to be connected is realized in the terminal according to the invention that is deflected in the second position of the clamping spring of the clamping leg, at least for an inserted electrical conductor against the spring force of the clamping spring, so that the Clamping leg against the inserted electrical conductor against a speaking contact point, which is formed by a corresponding portion of the metal part, is pressed.
- the clamping spring can be locked in its second position. This prevents the clamping spring from pivoting back into its first position after swiveling into the second position due to its freely pivotable arrangement in the housing or in the metal part, so that the electrical connection of an inserted conductor would be released again.
- a holding section bent in the direction of the clamping leg is preferably formed at the free end of the actuating leg.
- the metal part in addition to a clamping portion, which forms the terminal point for the conductor with the clamping leg, nor a holding portion, which is angled from the clamping portion.
- the holding portion of the clamping spring and the holding portion of the metal part are formed so that they lock together in the second position of the clamping spring.
- at least one latching element is preferably formed on the holding section of the actuating leg and at least one corresponding counter-latching element is formed on the holding section of the metal part.
- the holding section on the actuating limb of the clamping spring is deflected in such a way that the latching element formed on the holding section engages with the counter-latching element formed on the holding section of the metal part.
- a corresponding guide edge is advantageously formed in the housing or on the actuating element, on which the holding section slides during the pivoting of the clamping spring from the first position to the second position.
- the actuating element is preferably designed so that it deflects the holding portion of the actuating leg during pivoting from the second position to the first position such that the latch between see the holding portion of the clamping spring and the holding portion of the metal part is released. If the latching is released, the clamping spring pivots by itself in the direction of its first (open) position due to its spring force.
- the holding portion of the actuating leg on two by a slot separate holding leg.
- the actuating element has an actuating wall arranged in the plane of the slot and two unlocking sections arranged laterally next to the actuating wall.
- a stop for the actuating limb of the clamping spring is formed in the housing, against which the actuating limb rests in the first position of the clamping spring.
- the metal part is electrically conductively connected to at least one Lötan gleichpin.
- the metal part is produced as a punched and bent part of a conductive sheet, wherein the one or more Lötan gleichpins are integrally connected to the metal part.
- FIG. 1 is a perspective view of two juxtaposed inventive electrical terminals, wherein a terminal in the open and a terminal in the closed state is shown,
- FIG. 2 is a perspective view of the two terminals of FIG. 1, both in the closed state
- FIG. 4 shows the connection terminal according to FIG. 3 when pivoting into the second, closed position, FIG.
- FIG. 6 the terminal of FIG. 3, at the beginning of the opening process and Fig. 7, the terminal of FIG. 3, in the almost completely open state.
- the figures show an electrical connection terminal 1, which initially consists of a clamping spring 2 and a metal part 3.
- Both the clamping spring 2 and the metal part 3 may be formed as a simple stamped and bent parts, but it is not necessary that the same materials are used for the clamping spring 2 and the metal part 3.
- the clamping spring 2 and the metal part 3 are arranged together in a housing 5 having a Porterein Installations- opening 5, which consists of an insulating material, in particular of plastic.
- the clamping spring 2 has a clamping leg 6, an actuating leg 7 and the two legs 6, 7 interconnecting spine 8, wherein the clamping leg 6 with the metal part 3 a nip 9 for a - only shown in Fig. 3 - to be connected stripped conductor 10th form.
- a bearing pin 11 is formed, on which the clamping spring 2 is mounted pivotably such that the clamping spring 2 from a first (open) position ( Figures 1 and 3) in a second (closed) position (Fig , 5 and 6) can be pivoted.
- a stripped electrical conductor 10 introduced through the conductor insertion opening 4 can be introduced into the clamping point 9 without the clamping leg 6 having to be deflected against its spring force or the spring force of the clamping spring 2.
- the electrical conductor 10 is electrically conductively clamped between the end of the clamping leg 6 and the metal part 3, wherein the clamping leg 6 is deflected from its rest state.
- the actuation of the electrical connection terminal 1 is thereby particularly user-friendly, that in the housing 5, an actuating element 12 is pivotally mounted on a second bearing pin 13. If the actuating element 12 is pivoted from the first (open) position shown in FIG. 1 into its second (closed) position shown in FIG. 2, the clamping spring 2 is pivoted from its first position to its second position by the pivoting of the actuating element 12 , The electrical connection terminal 1 can thus be pivoted by pushing it down. overlaid actuator 12 is closed and by pivoting the actuator 12 in the opposite direction - again - be opened.
- the figures 3 to 5 show the closing operation of the clamping spring 2 at three successive times while the figures 6 and 7 show the opening operation at two times.
- the actuator 12 In the arrangement and orientation of the electrical terminal 1 shown in the figures, the actuator 12 must be pivoted to close in a clockwise direction and for opening in the counterclockwise direction, d. H. the actuator 12 is pressed down to close and pivoted to open upwards.
- the clamping spring 2 when closing the actuating element 12, the clamping spring 2 is pivoted counterclockwise and when opening the actuating element 12 in the clockwise direction, d. H. the rotational or pivoting direction of the clamping spring 2 and the rotational or pivoting direction of the actuating element 12 are opposite to each other.
- the clamping spring 2 is locked in its second position, so that the clamping spring 2 does not return in the direction of the first one after the connection of an electrical conductor 10 due to its pivotable arrangement and due to its spring force Swing back position.
- the actuating leg 7 of the clamping spring 2 at its end remote from the clamping leg 6 has a holding portion 14 which is bent in the direction of the clamping leg 6.
- the metal part 3 has, in addition to a clamping section 15, a holding section 16 which is bent in the direction of the actuating limb 7.
- Terminal Clamp 1 the latching between the holding portion 14 of the actuating leg 7 and the holding portion 16 of the metal part 3 is realized in that on the holding portion 14 of the actuating leg 7 two laterally outwardly projecting projections 17 are formed and the holding portion 16 of the metal part 3 two separate bent Detent 18 has.
- the projections 17 are snapped under the locking ends 18, so that the clamping spring 2 is held in its closed position and can not swing back into its open position.
- the holding section 14 of the actuating leg 7 has two retaining legs 20 separated from each other by a slot 19, one of the two projections 17 being formed on each of the two retaining legs 20. Due to the formation of two separate holding legs 20, the deflection of the two holding legs 20 is facilitated when locking the clamping spring 2 in the second position. In addition, the ends of the two holding legs 20 inward, d. H. bent in the direction of the clamping leg 6, so that the holding legs 20 do not tilt on depression of the actuating leg 7 by the actuating element 12 at the locking ends 18.
- the actuating element 12 has an actuating wall 21 and two unlocking sections 22 formed laterally next to the actuating wall 21.
- the actuating wall 21 extends in the plane of the slot 19 formed in the holding section 14 of the actuating limb 7, so that the actuating wall 21 can dip into the slot 19 when the clamping spring 2 is pivoted from the closed position into the open position.
- the actuating wall 21 of the actuating element 12 slides through the slot 19 in the holding section 14 of the actuating leg 7 until the end of the actuating wall 21 abuts against the actuating leg 7 from the inside, so that upon further pivoting of the actuating element 12, the clamping spring 2 continues into the fully opened position Position is pivoted.
- the fully open position of the clamping spring 2 is then reached when the clamping spring 2 abuts with its actuating limb 7 on a stop 5 formed in the housing 5.
- the fully open position of the clamping spring 2 is easily recognizable even for the fitter.
- the terminal 1 in the embodiment of the terminal 1 according to the invention shown in the figures is a print terminal for connecting a conductor 10 to a circuit board.
- the metal part 3 a plurality of, in the illustrated embodiment, four Lötan gleichprints 24, which are integrally connected to the metal part 3.
- the metal part 3 can thus be produced as a simple stamped and bent part from a conductive flat material.
- the clamping spring 2 can be made of a flat material by punching and bending in their shape shown in the figures.
- the actuating element 12 For easy and convenient handling of the actuating element 12, this has a over the end face 25 of the housing 5 projecting handle portion 26.
- the actuator 12 can thus easily with one or two fingers - as shown in FIGS. 3 to 5 - pivoted from the first position to the second position, d. H. be closed and pivoted with one or two fingers - as shown in FIGS. 6 and 7 - from the second position to the first position, d. H. be opened.
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008039868A DE102008039868A1 (en) | 2008-08-27 | 2008-08-27 | Electrical connection terminal |
PCT/EP2009/006218 WO2010031491A2 (en) | 2008-08-27 | 2009-08-27 | Electrical connection terminal |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2324533A2 true EP2324533A2 (en) | 2011-05-25 |
EP2324533B1 EP2324533B1 (en) | 2012-08-08 |
Family
ID=41605751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09778155A Active EP2324533B1 (en) | 2008-08-27 | 2009-08-27 | Electrical connection terminal |
Country Status (7)
Country | Link |
---|---|
US (1) | US8444443B2 (en) |
EP (1) | EP2324533B1 (en) |
CN (1) | CN102204015B (en) |
DE (1) | DE102008039868A1 (en) |
DK (1) | DK2324533T3 (en) |
ES (1) | ES2391535T3 (en) |
WO (1) | WO2010031491A2 (en) |
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JP5324123B2 (en) * | 2008-04-25 | 2013-10-23 | スリーエム イノベイティブ プロパティズ カンパニー | Push connector |
-
2008
- 2008-08-27 DE DE102008039868A patent/DE102008039868A1/en not_active Withdrawn
-
2009
- 2009-08-27 ES ES09778155T patent/ES2391535T3/en active Active
- 2009-08-27 CN CN200980143722.XA patent/CN102204015B/en active Active
- 2009-08-27 US US13/121,460 patent/US8444443B2/en active Active
- 2009-08-27 WO PCT/EP2009/006218 patent/WO2010031491A2/en active Application Filing
- 2009-08-27 DK DK09778155.3T patent/DK2324533T3/en active
- 2009-08-27 EP EP09778155A patent/EP2324533B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010031491A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010031491A2 (en) | 2010-03-25 |
US8444443B2 (en) | 2013-05-21 |
US20110223795A1 (en) | 2011-09-15 |
DK2324533T3 (en) | 2012-10-22 |
CN102204015A (en) | 2011-09-28 |
WO2010031491A3 (en) | 2010-08-05 |
EP2324533B1 (en) | 2012-08-08 |
ES2391535T3 (en) | 2012-11-27 |
CN102204015B (en) | 2014-11-12 |
DE102008039868A1 (en) | 2010-03-04 |
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