EP2956995B1 - Conductor terminal - Google Patents
Conductor terminal Download PDFInfo
- Publication number
- EP2956995B1 EP2956995B1 EP14706795.3A EP14706795A EP2956995B1 EP 2956995 B1 EP2956995 B1 EP 2956995B1 EP 14706795 A EP14706795 A EP 14706795A EP 2956995 B1 EP2956995 B1 EP 2956995B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulating material
- actuating element
- material housing
- conductor
- adjacent
- 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
Links
- 239000004020 conductor Substances 0.000 title claims description 92
- 239000011810 insulating material Substances 0.000 claims description 49
- 238000003780 insertion Methods 0.000 claims description 35
- 230000037431 insertion Effects 0.000 claims description 35
- 238000007689 inspection Methods 0.000 claims 3
- 238000012360 testing method Methods 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- 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
-
- 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
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5066—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw mounted in an insulating housing having a cover providing clamping force
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- 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
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- 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
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/82—Coupling devices connected with low or zero insertion force
- H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
- H01R12/88—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by rotating or pivoting connector housing parts
-
- 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
- H01R4/485—Single busbar common to multiple springs
Definitions
- the invention relates to a conductor terminal with an insulating material housing and with at least one spring terminal connection in the insulating housing, as well as with at least one actuating element, which is pivotally received in the insulating material and designed to open at least one associated spring terminal connection.
- the actuator has two spaced lever arm portions that are at least partially immersed in the insulating housing with a pivot bearing portion and spaced from each other to the pivot bearing portion with a transverse web to a lever arm are connected.
- Such conductor terminals are known, for example, as lever-actuated terminal blocks. But they can also be designed as a PCB terminal block, as a terminal block or as a conductor terminal in another electrical device.
- DE 102 37 701 B4 shows a lever-operated connection terminal with a contact insert, which is formed of compact cage springs and a flat extending common busbar.
- a contact insert which is formed of compact cage springs and a flat extending common busbar.
- To open each cage tension spring an associated operating lever with pivot pin is pivotally received in the insulating housing.
- the rear end of an actuating lever acts on the top of a cage tension spring to open the clamping point formed with the cage tension spring.
- On the underside of the actuating lever in each case a slot is provided which leads to increase the buckling stiffness of the actuating lever formed of plastic material.
- WO 2010/133082 A1 shows a printed circuit board terminal with linearly displaceable actuating levers, which have a lying above the insulating housing crosspiece and adjoining spaced side webs.
- the side bars dive into the interior of the insulating material and cooperate with a U-shaped leaf spring to open a formed by a free clamping edge of the leaf spring and a busbar terminal point for an electrical conductor.
- the spring clamping unit has a clamping spring, which can be actuated by an operating portion by pulling against the spring force to open a nip. The pulling force is exerted by a pivotally received in the insulating housing actuating lever, which is placed in a space of the insulating housing. Below the operating lever is directly the Federkraftklemman gleich, however, is not accessible from the outside by a pivotable locking lever of the actuating element and the actuating lever cooperating therewith.
- DE 10 2008 039 868 A1 discloses an electrical terminal with a clamping spring in an insulating housing and a pivotally mounted in the housing actuator. Above the conductor insertion opening protrudes in front of the clamping spring, an insulating base, in which immersed in the swung-down state, the actuator. The top of Isolierstoffblocks is then visible through an opening in the actuator from above. The actuator covers the in the closed state, the top of the clamping spring.
- JP 2012 064351 A discloses a conductor terminal having an insulating housing, an actuating lever and a spring force clamping connection in the insulating housing.
- the operating lever dives with two Hebelarmabitesen through an upper boundary wall of the insulating material into the interior of the insulating material and is adjacent there to the Federkraftklemman gleich.
- the clearance and creepage distances are limited to the thickness of the upper boundary wall.
- the actuating element Due to the design of the actuating element as a kind of U-shaped bracket with two lever arm sections and a crosspiece connecting this side wall sections, a stable pivot lever is provided, the Hebelarmabroughe plunge into the insulating material. Between the Hebelarmabitesen and the crossbar, a space surrounded by the pivot lever free space is provided for receiving Isolierstoffgepuruseabitesen.
- the at least one spring terminal connection is to the top of the insulating housing, ie on the side of the insulating material on which the at least one actuating element is arranged, covered by an outer boundary wall of the insulating material.
- an outer boundary wall of the insulating material With the help of extending from the outer boundary wall in the interior of the insulating material in the side wall portions, which are located on both sides next to each associated spring terminal connection, the creepage distances are significantly increased.
- a pair of side wall portions which receive a spring force clamping connection therebetween together with the associated outer boundary wall form a housing wall portion of the insulating material housing which is U-shaped in cross-section. The length of the extent of the side wall sections in the interior of the insulating material essentially determines the air and creepage distance.
- the space provided by the pivot lever with its two spaced apart and partially projecting into the Isolierstoffgeophuse lever arm provided free space contributes to the compact design by the U-shaped housing wall portion is received in the laterally limited by the Hebelarmabitese space. At least in the swung down state of the pivot lever, in which the clamping point formed by the at least one associated Federkraftklemman gleich is closed, this space is thus at least partially filled by protruding into the free space portions of the insulating material. This allows a low height of the conductor terminal reach, which can be made very compact by the U-shaped pivot lever with the space thus formed and the filling through this portion of the insulating material, while ensuring compliance with the required creepage distances and creepage distances.
- the cross-sectionally U-shaped housing wall section for receiving the Federkraftklemman gleich under lateral delimitation by the side wall portions has the further advantage that the Federkraftklemman gleich itself can dip at least partially into the space between the side wall portions.
- the clamping springs of the spring-force clamping connections can then be opened by means of suitable contours on the lever arm sections when the actuating element is pivoted.
- the power transmission through the lever from the crosspiece on the Hebelarmabitese to the clamping springs of Federkraftklemman go optimal, since the Hebelarmabitese lie next to the clamping springs.
- the side wall sections extending from the outer boundary wall into the interior of the insulating housing and lying laterally next to a spring force clamping connection are adjacent to this in a section (region) which extends parallel to at least part of the pivot bearing region of the associated actuating element Pivot bearing area ends.
- the thus still ending at the height of the spring terminal connection side wall sections thus have a lying in the interior of the insulating housing peripheral edge.
- a particularly compact and optimized conductor terminal can be achieved when the bump is flush with the top of the adjacent section of the actuator. This optimally exploits the available height of the conductor connection terminal.
- a portion of an outer boundary wall of the insulating housing in the closed state of the respectively associated actuating element is arranged directly below the transverse web of the associated actuating element in a free space which is formed by the transverse web and adjoining Hebelarmabitese.
- the space formed in the volume of the pivot lever by the transverse web and the adjoining Hebelarmabitese space is thus at least partially filled in the closed state of the pivot lever by a U-shaped housing wall section with its upper boundary wall of the insulating material and protruding into the interior of the insulating housing side wall portions.
- This space is thus used to accommodate a cross-sectionally U-shaped housing wall portion and thus improve the air and creepage distances in a compact design.
- Such a gap can be used in a preferred embodiment as a test opening.
- a test opening such an air gap between the outer boundary wall of the insulating material and an adjacent conductor insertion opening boundary wall is opened to form a test opening on opposite sides, wherein an adjacent spring terminal connection for a guided through the test opening test tool is accessible via the gap.
- At least one of the pivot bearing portions of the Hebelarmabitese the actuating elements preferably has an actuating contour which engages upon pivoting of the actuating element with a clamping spring of an associated FederkraftklemmanBankes to a terminal formed by a clamping edge of the clamping spring and a busbar section of a busbar clamping point of the spring terminal connection for clamping an electrical conductor to open.
- a clamping spring for example, a leaf spring with spring bow and on one side adjoining plant leg and on the other side adjoining clamping leg, wherein the clamping leg has a free end portion for forming a clamping edge.
- the actuating contour acts on a preferably laterally projecting section of the clamping leg, in order in this way to move the clamping edge away from the busbar section.
- the busbar extends over at least two juxtaposed in a row Federkraftklemman eventually to electrically and conductively connect to the at least two Federkraftklemman again clamped electrical conductors.
- Fig. 1 shows a perspective view of a conductor terminal 1 in the form of a lever-actuated socket terminal with an insulating 2 and juxtaposed actuators 3 recognize.
- Isolierstoffgepuruse 2 frontally juxtaposed conductor insertion openings 4 are provided on the respectively associated Federkraftklemman say (not visible) for a conductor insertion opening inserted electrical conductor for clamping the same are accessible.
- upper or “upper” is understood to mean the side of the conductor connection terminal 1 on which the actuating elements 3 are arranged in the form of pivotable actuating levers.
- the actuating elements 3 have two lever arm sections 7a, 7b which are spaced apart from one another and a transverse web 8 which connects the two lever arm sections 7a, 7b with one another.
- an actuating contour connected to a lever arm section for acting on a clamping spring of the spring force clamping connection for opening a clamping point formed by the clamping spring is provided via the pivot bearing area.
- the actuating element 3 with two spaced lever arm portions 7 a, 7 b, which are immersed in the insulating 2 and pivotally mounted there, and the two Hebelarmabitese 7 a, 7 b interconnecting transverse web 8 is a very kink-resistant pivot lever created, the extremely compact and is flat building.
- the cross bar 8 offers a wide grip surface to apply by hand or an operating tool an actuating force for pivoting the actuating element 3 on the pivot lever.
- a gap which is open on both sides as a test opening is formed between a conductor insertion opening boundary wall 9 and an outer boundary wall 10 of the insulating housing 2, via which the associated spring terminal connection (not visible) is accessible to a testing tool.
- a test opening from the back is also possible.
- Fig. 2 leaves a side sectional view through the conductor terminal 1 Fig. 1 Detect in the range of an open actuator 3.
- the Federkraftklemman gleich 11 is visible, which has a transversely to the Leiterereinsteckcardi L extending busbar 12 and a clamping spring 13.
- the clamping spring 13 is mounted with a plant leg 14 in the busbar 12.
- the bus bar 12 has an upwardly angled in the direction of actuator 3 holding portion 15 with a recess 16 which allows the passing through an electrical conductor.
- This recess 16 is bounded at the free end by a holding web 17, against which the abutment leg 14 of the clamping spring 13 abuts.
- the clamping spring 13 is thus fixed on the bus bar 12 via the retaining web 17.
- a spring bow 18 connects, from which the clamping leg 19 extends with a clamping edge 20 at the free end. It is clear that the clamping leg 19 is bent in its end portion at an angle of about 70 ° to 110 °, preferably about 85 ° to 95 °.
- the free end is then bent back with the clamping edge 20 in the conductor insertion direction.
- the bent here by about 90 ° portion is transverse to the conductor insertion direction, so that a direct insertion of a stranded or fine stranded electrical conductor without prior opening of the clamping point by pivoting the actuating element 3 is prevented.
- the clamping leg 19 then forms by bending a space for receiving the free stripped end of the inserted electrical conductor and goes above the conductor insertion opening 4 in a spring bow 18 on.
- a clamping leg 19 connects, wherein the free end of the clamping leg 19 has a clamping edge 20. Between the clamping edge 20 and the busbar 10, a terminal point for clamping an electrical conductor (not shown) is formed.
- the busbar 12 is inclined with respect to the conductor insertion direction L defined by the extension direction of the conductor insertion opening 4. More specifically, the bus bar 12 is inclined at about 5 ° to 25 ° relative to the upper conductor insertion opening delimiting wall 9 and the front portion of the opposite lower conductor insertion opening delimiting wall.
- a ramp for the electrical conductor and the busbar 12 in the transition to the recess 16 a contact edge 21 is provided which forms a defined nip together with the clamping edge 20 of the clamping spring 13.
- the Hebelarmabites 7a in the insulating housing 2 immersed space and is pivotally mounted in a part-circular bearing portion 22 of the insulating housing 2 with a pivot bearing portion 23 of the lever arm portion 7a.
- an actuating contour 24 is provided, which cooperates with a laterally projecting actuating tabs (not visible) of the clamping leg 19 of the clamping spring 13.
- frontally part-circular pivot bearing portion 23 is rotatably mounted on the part-circular bearing portion 22.
- the pivot bearing portion 23 is also on the busbar 12, which also contributes to the storage of the actuating element 3.
- the insulating housing 2 is formed in two parts.
- a rear cover part 25 is locked to a front housing part 26 by latching tabs and / or latching openings. After insertion of the actuating element 3 and the associated FederkraftklemmanBankes 11 in the front housing part 26, this is closed by inserting and locking the back cover part 25.
- Fig. 3 leaves a side sectional view through the conductor terminal 1 FIG. 1 Detect in the area of a closed actuator 3. It is clear that the actuating element 3 is folded down with its transverse web 8 in the direction of the insulating material 2, so that the transverse web 8 directly adjacent to an outer housing wall 10 of the insulating housing 2.
- the actuating contour 24 is compared to the open position FIG. 2 rotated by about 80 to 90 ° to a displacement of the clamping edge 20 through to allow the spring force of the clamping spring 13 downwards in the direction of bus bar 12, so that when not clamped electrical conductor in the illustrated rest position, the clamping edge 20 preferably still rests on the bus bar 12 by spring force.
- the front and rear end side of the gap 27 to be open.
- the spring bow 18 of the clamping spring 13 is accessible from the outside via the gap 27 and it is possible to measure the electrical potential at the spring terminal 9 by means of a test tool inserted into the test opening (voltage probe or screwdriver with voltage potential indicator).
- the space 27 is bounded on the side opposite to the outer boundary wall 10 by a conductor insertion opening delimiting wall 9, to which the conductor insertion opening 4 adjoins.
- FIG. 2 and 3 are sectional lines AA, BB and CC of the cross-sectional views of the conductor terminal 1 described below, Fig. 4 shows a cross-sectional view in section CC through the conductor terminal 1.
- the left operating member 3 is opened, while the right adjacent actuators 3 are closed.
- the viewing direction of the representation in FIG. 4 corresponds to the conductor insertion opening L.
- the section CC passes through the pivot bearing portion 23 of the lever at section 7a, 7b. It is clear that at the two Hebelarmabmaleen 7a, 7b in the pivot bearing portion 23 facing each other actuating pin 28 are arranged, on each of which an actuating contour 24 is located.
- the actuating pin 28 are positioned below the clamping leg 19 of the associated clamping spring 13 to allow the clamping leg 19 in the direction of plant leg 14 upon pivoting of the actuating lever 3 from the closed position to the open position shown on the left.
- the housing wall section 5, which is U-shaped in cross section, is formed from a section of the outer boundary wall 10 and two side wall sections 29a, 29b projecting at a distance from one another in the direction of the interior of the insulating housing 2. These side wall sections 29a, 29b laterally adjoin the associated spring terminal connection 11 and partially receive the associated spring terminal connection 11 in the interior of the housing wall section 5, which is U-shaped in cross-section.
- the Federkraftklemman gleich 11 is covered at the top by the upper, outer boundary wall 10 of the U-shaped housing wall portion 5.
- the creepage distance and the creepage distance of the illustrated conductor connection terminal 1 is defined by the shortest connection through the air or over the surface of the insulation material between the voltage potential-carrying spring terminal connection 13 and the outside of the insulating material housing 2.
- the creepage and clearance path runs along the side wall sections 29a of the U-shaped housing wall section 5.
- the sidewall sections 29a, 29b extending into the interior of the insulating housing 2 ensure sufficiently long creepage and clearance distances along the outside of the side wall sections 29a, 29b and around the lower peripheral edge 31 of the side wall sections 29a, 29b as far as the spring force clamping projection 11.
- the length of the outer sides of the side wall portions 29a, 29b contributes to increasing the creepage and clearance distances in that they are not directly accessible, but have laterally adjacent Hebelarmabexcellente 7a, 7b.
- Fig. 5 shows a cross-sectional view in section BB through the conductor connection terminal 1.
- Fig. 6 shows a cross-sectional view in section AA through the conductor connection terminal 1.
- the side wall portions 29a, 29b provide in the outer region of the conductor terminal 1 through the side wall of the insulating material 2 and the projecting U-shaped housing wall portion 5 a lateral guide for a lever arm portion 7a, 7b of the actuating element 3 when swinging down.
- a space for receiving two adjoining lever arm sections 7a, 7b of adjacent actuating elements 3 is provided by the adjacent projecting U-shaped housing wall sections 5.
- Fig. 7 lets a perspective view of an actuating element 3 for the conductor terminal 1 described above from below.
- the basically U-shaped structure of the actuating lever can be seen, which is formed by two spaced-apart Hebelarmabexcellente 7a, 7b and a connecting crosspiece 8 in the front area.
- the Hebelarmabexcellente 7a, 7b taper in the direction of its free end or in the direction of the crosspiece 8. They are opposite to the transverse web 8 part-circular designed to provide a pivot bearing area by the actuator 3 is pivotally mounted in the insulating housing.
- this pivot bearing area 23 is in each case a part-circular actuating contour 24 with an actuating cutout 33 at an angle of about 90 ° (60 to 100 °).
- the actuating contour 24 is arranged by a free space 30 of the adjacent associated lever arm portion 7a, 7b spaced, so that a side wall portion 29a, 29b of the U-shaped housing wall section 5 of the insulating material 2 can dip into this space 30 (see FIG. 4 ).
- the actuating element 3 is thus guided not only over the part-circular end faces of the pivot bearing portion 23 and the local actuating pin 28 and through the outer sides of Hebelarmabchae 7a, 7b, but can also by a projecting into the gap 30 side wall portion 29a, 29b of the insulating 2 additionally guided be stabilized.
- an actuating bead 34 is provided on the front end side of the transverse web 8. This improves the gripping of the actuating element 3 by hand or with an actuating tool in order to pivot the actuating element 3.
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Installation Of Indoor Wiring (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Clamps And Clips (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
Die Erfindung betrifft eine Leiteranschlussklemme mit einem Isolierstoffgehäuse und mit mindestens einem Federkraftklemmanschluss in dem Isolierstoffgehäuse, sowie mit mindestens einem Betätigungselement, das schwenkbar in dem Isolierstoffgehäuse aufgenommen und zum Öffnen jeweils mindestens eines zugeordneten Federkraftklemmanschlusses ausgebildet ist. Das Betätigungselement hat zwei voneinander beabstandete Hebelarmabschnitte, die mindestens teilweise mit einem Schwenklagerbereich in das Isolierstoffgehäuse eintauchen und beabstandet zu dem Schwenklagerbereich mit einem Quersteg zu einem Hebelarm miteinander verbunden sind.The invention relates to a conductor terminal with an insulating material housing and with at least one spring terminal connection in the insulating housing, as well as with at least one actuating element, which is pivotally received in the insulating material and designed to open at least one associated spring terminal connection. The actuator has two spaced lever arm portions that are at least partially immersed in the insulating housing with a pivot bearing portion and spaced from each other to the pivot bearing portion with a transverse web to a lever arm are connected.
Derartige Leiteranschlussklemmen sind beispielsweise als hebelbetätigte Dosenklemmen bekannt. Sie können aber auch als Leiterplattenklemme, als Reihenklemme oder als Leiteranschlussklemme in einem sonstigen elektrischen Gerät ausgebildet sein.Such conductor terminals are known, for example, as lever-actuated terminal blocks. But they can also be designed as a PCB terminal block, as a terminal block or as a conductor terminal in another electrical device.
Weiterhin ist aus
Weiterhin ist in
Ausgehend hiervon ist es Aufgabe der vorliegenden Erfindung eine kompakt aufgebaute Leiteranschlussklemme zu schaffen, bei der die erforderlichen Luft- und Kriechstrecken bei möglichst kompaktem Aufbau immer noch eingehalten werden.Based on this, it is an object of the present invention to provide a compact design conductor terminal, in which the required creepage distances and creepage distances are still complied with as compact as possible.
Die Aufgabe wird durch die Leiteranschlussklemme mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind in den Unteransprüchen beschrieben.The object is achieved by the conductor terminal with the features of
Für eine gattungsgemäße Leiteranschlussklemme mit schwenkbarem Betätigungselement, bei der der mindestens eine Federkraftklemmanschluss auf der Seite des Isolierstoffgehäuses, auf der das mindestens eine Betätigungselement angeordnet ist, durch eine äußere Begrenzungswand des Isolierstoffgehäuses überdeckt ist wird vorgeschlagen, dass sich von der äußeren Begrenzungswand beidseits an einen jeweils zugeordneten Federkraftklemmanschluss angrenzende Seitenwandabschnitte des Isolierstoffgehäuses in den Innenraum des Isolierstoffgehäuses hinein erstrecken, die beidseits neben dem jeweils zugeordneten Federkraftklemmanschluss liegen und zusammen mit der äußeren Begrenzungswand einen im Querschnitt U-förmigen Gehäusewandabschnitt des Isolierstoffgehäuses bilden, der einen Federkraftklemmanschluss zwischen sich aufnimmt. Die Hebelarmabschnitte des Betätigungselementes grenzen dabei im in Richtung des Isolierstoffgehäuses heruntergeschwenkten, geschlossenen Zustand des jeweiligen Betätigungselementes an der Außenwand eines jeweils zugeordneten, seitlich neben einem Federkraftklemmanschluss liegenden Seitenwandabschnitt an.For a generic conductor terminal with a pivotable actuating element, wherein the at least one spring terminal connection on the side of the insulating material, on which the at least one actuating element is arranged, is covered by an outer boundary wall of the insulating material is proposed that on both sides of the outer boundary wall to a respective associated spring terminal connection extend adjacent side wall portions of the insulating material into the interior of the insulating material inside, which lie on both sides next to each associated spring terminal connection and form a cross-sectionally U-shaped housing wall portion of the insulating housing together with the outer boundary wall, which receives a Federkraftklemmanschluss between them. The lever arm sections of the actuating element border in the in Direction of the insulating material swung down, closed state of the respective actuating element on the outer wall of a respective associated, laterally adjacent to a spring terminal connection side wall section.
Durch die Ausbildung des Betätigungselementes als eine Art U-förmigen Bügel mit zwei Hebelarmabschnitten und einen diese Seitenwandanschnitte verbindenden Quersteg wird ein stabiler Schwenkhebel bereitgestellt, dessen Hebelarmabschnitte in das Isolierstoffgehäuse eintauchen. Zwischen den Hebelarmabschnitten und dem Quersteg wird ein vom Schwenkhebel umfasster Freiraum zur Aufnahme von Isolierstoffgehäuseabschnitten bereitgestellt.Due to the design of the actuating element as a kind of U-shaped bracket with two lever arm sections and a crosspiece connecting this side wall sections, a stable pivot lever is provided, the Hebelarmabschnitte plunge into the insulating material. Between the Hebelarmabschnitten and the crossbar, a space surrounded by the pivot lever free space is provided for receiving Isolierstoffgehäuseabschnitten.
Der mindestens eine Federkraftklemmanschluss wird zur Oberseite des Isolierstoffgehäuses hin, d.h. auf der Seite des Isolierstoffgehäuses, auf der das mindestens eine Betätigungselement angeordnet ist, durch eine äußere Begrenzungswand des Isolierstoffgehäuses überdeckt. Mit Hilfe der sich von der äußeren Begrenzungswand in den Innenraum des Isolierstoffgehäuses hinein erstreckenden Seitenwandabschnitte, die beidseits neben einem jeweils zugeordneten Federkraftklemmanschluss liegen, werden die Luft- und Kriechstrecken signifikant erhöht. Ein Paar von Seitenwandabschnitten, die einen Federkraftklemmanschluss zwischen sich aufnehmen, bilden zusammen mit der zugehörigen äußeren Begrenzungswand einen im Querschnitt U-förmigen Gehäusewandabschnitt des Isolierstoffgehäuses. Die Länge der Erstreckung der Seitenwandabschnitte in den Innenraum des Isolierstoffgehäuses bestimmt dabei im Wesentlichen die Luft- und Kriechstrecke. Diese wirkt ausgehend vom Federkraftklemmanschluss entlang der Innenwand über eine freie Randkante des Seitenwandabschnitts hindurch und entlang der Außenwand. Durch den sich (im geschlossenen Betriebszustand des Betätigungselementes) an die Außenwand der Seitenwandabschnitte jeweils angrenzenden Hebelarmabschnitt eines Betätigungselementes trägt die Wand der Seitenwandabschnitte des U-förmigen Gehäusewandabschnitts wesentlich zur Erhöhung der Luft- und Kriechstrecken bei. Die Seitenwandabschnitte und deren Beitrag zur Erhöhung der Luft- und Kriechstrecken sind daher nicht einfach mit Innen- und Außenwänden eines geschlossenen Isolierstoffgehäuses vergleichbar. Sie stehen vielmehr in Wechselwirkung mit den Hebelarmabschnitten eines zugeordneten Betätigungselementes.The at least one spring terminal connection is to the top of the insulating housing, ie on the side of the insulating material on which the at least one actuating element is arranged, covered by an outer boundary wall of the insulating material. With the help of extending from the outer boundary wall in the interior of the insulating material in the side wall portions, which are located on both sides next to each associated spring terminal connection, the creepage distances are significantly increased. A pair of side wall portions which receive a spring force clamping connection therebetween together with the associated outer boundary wall form a housing wall portion of the insulating material housing which is U-shaped in cross-section. The length of the extent of the side wall sections in the interior of the insulating material essentially determines the air and creepage distance. This acts from the spring force terminal connection along the inner wall over a free peripheral edge of the side wall portion and along the outer wall. By the (in the closed operating state of the actuating element) to the outer wall of the side wall portions respectively adjacent lever arm portion of an actuating element carries the wall of the side wall portions the U-shaped housing wall section significantly to increase the creepage distances and creepage. The side wall sections and their contribution to increasing the creepage and clearance distances are therefore not easily comparable with the inner and outer walls of a closed insulating housing. Rather, they interact with the lever arm portions of an associated actuator.
Der vom Schwenkhebel mit seinen beiden voneinander beabstandeten und teilweise in das Isolierstoffgehäuse hineinragenden Hebelarmabschnitten zur Verfügung gestellte Freiraum trägt zur kompakten Bauweise bei, indem der U-förmige Gehäusewandabschnitt in dem durch die Hebelarmabschnitte seitlich begrenzten Freiraum aufgenommen ist. Zumindest im heruntergeschwenkten Zustand des Schwenkhebels, bei dem die durch den mindestens einen zugeordneten Federkraftklemmanschluss gebildete Klemmstelle geschlossen ist, wird dieser Freiraum somit mindestens teilweise durch in den Freiraum hineinragende Abschnitte des Isolierstoffgehäuses ausgefüllt. Damit lässt sich eine niedrige Bauhöhe der Leiteranschlussklemme erreichen, die durch den U-förmigen Schwenkhebel mit dem hierdurch gebildeten Freiraum und das Ausfüllen durch diesen Abschnitt des Isolierstoffgehäuses sehr kompakt aufgebaut werden kann, und gleichzeitig die Einhaltung der erforderlichen Luft- und Kriechstrecken sicherstellen.The space provided by the pivot lever with its two spaced apart and partially projecting into the Isolierstoffgehäuse lever arm provided free space contributes to the compact design by the U-shaped housing wall portion is received in the laterally limited by the Hebelarmabschnitte space. At least in the swung down state of the pivot lever, in which the clamping point formed by the at least one associated Federkraftklemmanschluss is closed, this space is thus at least partially filled by protruding into the free space portions of the insulating material. This allows a low height of the conductor terminal reach, which can be made very compact by the U-shaped pivot lever with the space thus formed and the filling through this portion of the insulating material, while ensuring compliance with the required creepage distances and creepage distances.
Der im Querschnitt U-förmige Gehäusewandabschnitt zur Aufnahme des Federkraftklemmanschluss unter seitlicher Begrenzung durch die Seitenwandabschnitte hat weiter den Vorteil, dass der Federkraftklemmanschluss selbst mindestens teilweise in den Zwischenraum zwischen den Seitenwandabschnitten eintauchen kann. Die Klemmfedern der Federkraftklemmanschlüsse lassen sich dann mittels geeigneter Konturen an den Hebelarmabschnitten bei Verschwenken des Betätigungselementes öffnen. Dabei ist die Kraftübertragung durch den Hebel vom Quersteg über die Hebelarmabschnitte zu den Klemmfedern der Federkraftklemmanschlüsse optimal, da die Hebelarmabschnitte neben den Klemmfedern liegen. In der Leitereinsteckrichtung bzw. im geschlossenen Zustand des Hebels in Richtung des Querstegs zum Drehpunkt hin gesehen kann die Betätigungskraft auf die Klemmfeder, genau so wie die über den Quersteg auf den Hebel ausgeübte Kraft in Bezug auf den Drehpunkt auf der gleichen Seite, d.h. vor dem Drehpunkt, wirken, so dass die Dreh- und Kraftrichtung zur Betätigung des Betätigungshebels am Quersteg und zur Betätigung der Klemmfeder gleich ist. Hierdurch wird ebenfalls dazu beigetragen, dass die Leiteranschlussklemme sehr kompakt aufgebaut werden kann.The cross-sectionally U-shaped housing wall section for receiving the Federkraftklemmanschluss under lateral delimitation by the side wall portions has the further advantage that the Federkraftklemmanschluss itself can dip at least partially into the space between the side wall portions. The clamping springs of the spring-force clamping connections can then be opened by means of suitable contours on the lever arm sections when the actuating element is pivoted. The power transmission through the lever from the crosspiece on the Hebelarmabschnitte to the clamping springs of Federkraftklemmanschlüsse optimal, since the Hebelarmabschnitte lie next to the clamping springs. In the Leitereinsteckrichtung or in the closed state of the lever in the direction of the cross bar to the fulcrum point, the actuating force on the clamping spring, as well as the force exerted on the cross bar on the lever force with respect to the pivot point on the same side, ie Fulcrum act, so that the rotational and direction of force is equal to the actuation of the operating lever on the crossbar and the operation of the clamping spring. This also contributes to the fact that the conductor terminal can be made very compact.
Besonders vorteilhaft ist es, wenn die sich von der äußeren Begrenzungswand in den Innenraum des Isolierstoffgehäuses hinein erstreckenden und seitlich neben einem Federkraftklemmanschluss liegenden Seitenwandabschnitte in einem Abschnitt (Bereich), der sich parallel zu mindestens einem Teil des Schwenklagerbereichs des zugeordneten Betätigungselementes erstreckt, angrenzend zu diesem Schwenklagerbereich endet. Die damit noch auf der Höhe des Federkraftklemmanschlusses endenden Seitenwandabschnitte haben hierdurch eine im Innenraum des Isolierstoffgehäuses liegende Randkante. Durch die Erstreckungslänge der Seitenwandabschnitt in den Innenraum des Isolierstoffgehäuses hinein wird eine hinreichende Luft- und Kriechstrecke sichergestellt.It is particularly advantageous if the side wall sections extending from the outer boundary wall into the interior of the insulating housing and lying laterally next to a spring force clamping connection are adjacent to this in a section (region) which extends parallel to at least part of the pivot bearing region of the associated actuating element Pivot bearing area ends. The thus still ending at the height of the spring terminal connection side wall sections thus have a lying in the interior of the insulating housing peripheral edge. By the extension length of the side wall portion in the interior of the insulating material into a sufficient clearance and creepage distance is ensured.
Es ist vorteilhaft, wenn die sich von der äußeren Begrenzungswand in den Innenraum des Isolierstoffgehäuses hinein erstreckenden, seitlich neben einem Federkraftklemmanschluss liegenden Seitenwandabschnitte in einem sich über einer Leitereinführungsöffnung des Isolierstoffgehäuses erstreckenden Abschnitt in seitliche Begrenzungswände dieser Leitereinführungsöffnung übergehen.It is advantageous if the sidewall sections extending from the outer boundary wall into the interior of the insulating housing and laterally adjacent to a spring-force clamping connection in a section extending over a conductor insertion opening of the insulating housing pass into lateral boundary walls of this conductor insertion opening.
Vorteilhaft ist es, wenn jeweils eine Erhebung eines oben beschriebenen U-förmigen Gehäusewandabschnitts des Isolierstoffgehäuses im geschlossenen Zustand des jeweils zugeordneten Betätigungselementes in einen dem Quersteg benachbarten und durch die Hebelarmabschnitte seitlich begrenzten Freiraum des Betätigungselementes hineinragt. Dieser sich an den Quersteg anschließende Freiraum ermöglicht im geöffneten Zustand des jeweiligen Betätigungselementes, bei dem das Betätigungselement zum Öffnen einer durch den Federkraftklemmanschluss gebildeten Klemmstelle entgegenwirkend zur Federkraft aufgeschwenkt ist, dass das Betätigungselement teilweise in den Innenraum des Isolierstoffgehäuses eintaucht. Damit kann eine niedrige Bauhöhe der Leiteranschlussklemme erreicht werden, wobei durch die Seitenwandabschnitte des U-förmigen Gehäusewandabschnitts die Einhaltung der erforderlichen Luft- und Kriechstrecken sichergestellt werden.It is advantageous if in each case a survey of a U-shaped housing wall section of the insulating material housing described above in the closed State of the respective associated actuating element in a cross bar adjacent and laterally projecting through the Hebelarmabschnitte free space of the actuating element protrudes. This adjoining the crosspiece free space allows in the open state of the respective actuating element, in which the actuating element is pivoted to open a terminal formed by the Federkraftklemmanschluss counteracting the spring force, that the actuating element partially immersed in the interior of the insulating material. This allows a low overall height of the conductor connection terminal can be achieved, being ensured by the side wall portions of the U-shaped housing wall section compliance with the required clearance and creepage distances.
Eine besonders kompakt bauende und optimierte Leiteranschlussklemme lässt sich erreichen, wenn die Erhebung bündig mit der Oberseite des angrenzenden Abschnitts des Betätigungselementes abschließt. Damit wird die verfügbare Höhe der Leiteranschlussklemme optimal ausgenutzt.A particularly compact and optimized conductor terminal can be achieved when the bump is flush with the top of the adjacent section of the actuator. This optimally exploits the available height of the conductor connection terminal.
Bevorzugt ist jeweils ein Abschnitt einer äußeren Begrenzungswand des Isolierstoffgehäuses im geschlossenen Zustand des jeweils zugeordneten Betätigungselementes direkt unterhalb des Quersteges des zugeordneten Betätigungselementes in einem Freiraum angeordnet, der durch den Quersteg und sich daran anschließende Hebelarmabschnitte gebildet wird. Der im Volumen des Schwenkhebels durch den Quersteg und die sich daran anschließenden Hebelarmabschnitte gebildete Freiraum wird im geschlossenen Zustand des Schwenkhebels somit durch einen im Querschnitt U-förmigen Gehäusewandabschnitt mit seiner oberen Begrenzungswand des Isolierstoffgehäuses und die in den Innenraum des Isolierstoffgehäuses hineinragenden Seitenwandabschnitte mindestens teilweise ausgefüllt. Dieser Freiraum wird somit genutzt, um einen im Querschnitt U-förmigen Gehäusewandabschnitt aufzunehmen und damit bei kompakter Bauweise die Luft- und Kriechstrecken zu verbessern.Preferably, in each case a portion of an outer boundary wall of the insulating housing in the closed state of the respectively associated actuating element is arranged directly below the transverse web of the associated actuating element in a free space which is formed by the transverse web and adjoining Hebelarmabschnitte. The space formed in the volume of the pivot lever by the transverse web and the adjoining Hebelarmabschnitte space is thus at least partially filled in the closed state of the pivot lever by a U-shaped housing wall section with its upper boundary wall of the insulating material and protruding into the interior of the insulating housing side wall portions. This space is thus used to accommodate a cross-sectionally U-shaped housing wall portion and thus improve the air and creepage distances in a compact design.
Dabei ist es besonders vorteilhaft, wenn ein Zwischenraum zwischen dem im geschlossenen Zustand des jeweiligen Betätigungselements direkt unterhalb des Quersteges des zugeordneten Betätigungselementes liegenden äußeren Begrenzungswand des Isolierstoffgehäuses und einer benachbarten Leitereinführungsöffnungs-Begrenzungswand für eine Leitereinführungsöffnung vorhanden ist. Dann ist der Raum zwischen der Leitereinführungsöffnung und dem Quersteg bei geschlossenem Zustand des Betätigungselementes, das heißt, bei heruntergeklapptem Schwenkhebel, nicht vollständig mit dem Isolierstoffmaterial ausgefüllt. Vielmehr ist ein Luftraum zwischen der Begrenzungswand für die Leitereinführungsöffnung und der unmittelbar am Quersteg angrenzenden äußeren Begrenzungswand des Isolierstoffgehäuses vorhanden.It is particularly advantageous if there is a gap between the lying in the closed state of the respective actuating element directly below the transverse web of the associated actuating element outer boundary wall of the insulating material and an adjacent conductor insertion opening boundary wall for a conductor insertion opening. Then, the space between the conductor insertion opening and the crosspiece in the closed state of the actuating element, that is, when folded down pivot lever, not completely filled with the insulating material. Rather, an air space between the boundary wall for the conductor insertion opening and the directly adjacent to the cross bar outer boundary wall of the insulating material is present.
Ein solcher Zwischenraum kann in einer bevorzugten Ausführungsform auch als Prüföffnung genutzt werden. Hierzu ist ein solcher LuftZwischenraum zwischen der äußeren Begrenzungswand des Isolierstoffgehäuses und einer benachbarten Leitereinführungsöffnungs-Begrenzungswand zur Bildung einer Prüföffnung auf einander gegenüberliegenden Seiten geöffnet, wobei ein benachbarter Federkraftklemmanschluss für ein durch die Prüföffnung geführtes Prüfwerkzeug über den Zwischenraum zugänglich ist.Such a gap can be used in a preferred embodiment as a test opening. For this purpose, such an air gap between the outer boundary wall of the insulating material and an adjacent conductor insertion opening boundary wall is opened to form a test opening on opposite sides, wherein an adjacent spring terminal connection for a guided through the test opening test tool is accessible via the gap.
Mindestens einer der Schwenklagerbereiche der Hebelarmabschnitte der Betätigungselemente hat vorzugsweise eine Betätigungskontur, die beim Verschwenken des Betätigungselementes mit einer Klemmfeder eines zugeordneten Federkraftklemmanschlusses in Eingriff gelangt, um eine durch eine Klemmkante der Klemmfeder und einen Stromschienenabschnitt einer Stromschiene gebildete Klemmstelle des Federkraftklemmanschlusses zum Anklemmen eines elektrischen Leiters zu öffnen. Eine solche Klemmfeder kann beispielsweise eine Blattfeder mit Federbogen und sich auf der einen Seite daran anschließenden Anlageschenkel und auf der anderen Seite daran anschließenden Klemmschenkel sein, wobei der Klemmschenkel einen freien Endbereich zur Bildung einer Klemmkante hat. Die Betätigungskontur beaufschlagt bei Verschwenken des Betätigungselementes einen vorzugsweise seitlich vorstehenden Abschnitt des Klemmschenkels, um auf diese Weise die Klemmkante von dem Stromschienenabschnitt weg zu bewegen.At least one of the pivot bearing portions of the Hebelarmabschnitte the actuating elements preferably has an actuating contour which engages upon pivoting of the actuating element with a clamping spring of an associated Federkraftklemmanschlusses to a terminal formed by a clamping edge of the clamping spring and a busbar section of a busbar clamping point of the spring terminal connection for clamping an electrical conductor to open. Such a clamping spring, for example, a leaf spring with spring bow and on one side adjoining plant leg and on the other side adjoining clamping leg, wherein the clamping leg has a free end portion for forming a clamping edge. Upon actuation of the actuating element, the actuating contour acts on a preferably laterally projecting section of the clamping leg, in order in this way to move the clamping edge away from the busbar section.
In einer bevorzugten Ausführungsform der Leiteranschlussklemme, insbesondere zur Bildung einer Dosenklemme, erstreckt sich die Stromschiene über mindestens zwei nebeneinander in einer Reihe angeordnete Federkraftklemmanschlüsse, um an die mindestens zwei Federkraftklemmanschlüsse angeklemmte elektrische Leiter elektrisch und leitend miteinander zu verbinden.In a preferred embodiment of the conductor connection terminal, in particular for forming a terminal box, the busbar extends over at least two juxtaposed in a row Federkraftklemmanschlüsse to electrically and conductively connect to the at least two Federkraftklemmanschlüsse clamped electrical conductors.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit den beigefügten Zeichnungen näher erläutert. Es zeigen:
- Fig. 1 -
- perspektivische Ansicht einer Leiteranschlussklemme;
- Fig. 2 -
- Seiten-Schnittansicht der Leiteranschlussklemme aus
Fig. 1 bei geöffnetem Betätigungselement; - Fig. 3 -
- Seiten-Schnittansicht der Leiteranschlussklemme aus
Fig. 1 bei geschlossenem Betätigungselement; - Fig. 4 -
- Querschnittansicht der Leiteranschlussklemme im Schnitt C-C;
- Fig. 5 -
- Querschnittansicht der Leiteranschlussklemme im Schnitt B-B;
- Fig. 6 -
- Querschnittansicht der Leiteranschlussklemme im Schnitt A-A;
- Fig. 7 -
- perspektivische Ansicht eines Betätigungselementes für die Leiteranschlussklemme von unten.
- Fig. 1 -
- perspective view of a conductor terminal;
- Fig. 2 -
- Side sectional view of the conductor connection terminal off
Fig. 1 with open actuator; - Fig. 3 -
- Side sectional view of the conductor connection terminal off
Fig. 1 with the actuating element closed; - Fig. 4 -
- Cross-sectional view of the conductor terminal in section CC;
- Fig. 5 -
- Cross-sectional view of the conductor terminal in section BB;
- Fig. 6 -
- Cross-sectional view of the conductor connection terminal in section AA;
- Fig. 7 -
- perspective view of an actuating element for the conductor terminal from below.
Weiterhin ist erkennbar, dass an der Oberseite der Leiteranschlussklemme 1 im Querschnitt U-förmige Gehäusewandabschnitte 5 einer äußeren Begrenzungswand des Isolierstoffgehäuses 2 jeweils in einen Freiraum 6 eines zugeordneten U-förmigen Betätigungselementes 3 hineinragen, wenn das Betätigungselement 3 heruntergeschwenkt ist. In dem heruntergeschwenkten, geschlossenen Zustand des zugeordneten Betätigungselementes 3 füllen diese U-förmigen Gehäusewandabschnitte 5 den Freiraum 6 mindestens teilweise aus. Die U-förmigen Gehäusewandabschnitte 5 schließen bevorzugt auf der Oberseite bündig mit der durch die oberen Randkanten des Isolierstoffgehäuses 2 gebildeten oberen Ebene des Isolierstoffgehäuses 1 ab.Furthermore, it can be seen that protrude at the top of the
Unter "oberer" bzw. "oben" wird die Seite der Leiteranschlussklemme 1 verstanden, an der die Betätigungselemente 3 in Form von schwenkbaren Betätigungshebeln angeordnet sind.The term "upper" or "upper" is understood to mean the side of the
Deutlich wird, dass die Betätigungselemente 3 zwei voneinander beabstandete Hebelarmabschnitte 7a, 7b und einen die beiden Hebelarmabschnitte 7a, 7b miteinander verbindenden Quersteg 8 aufweisen. Damit wird ein im Querschnitt U-förmiger Schwenkhebel geschaffen, dessen Hebelarmabschnitte 7a, 7b teilweise in das Isolierstoffgehäuse 2 hineinragen und einen nicht sichtbaren Schwenklagerbereich bilden. Über den Schwenklagerbereich wird nicht nur die Drehachse für den Schwenkhebel, d.h. für das Betätigungselement 3, sondern auch eine mit einem Hebelarmabschnitt verbundene Betätigungskontur zur Beaufschlagung einer Klemmfeder des Federkraftklemmanschlusses zum Öffnen einer durch die Klemmfeder gebildeten Klemmstelle bereitgestellt.It is clear that the
Durch die Ausführungsform des Betätigungselementes 3 mit zwei voneinander beabstandeten Hebelarmabschnitten 7a, 7b, die in das Isolierstoffgehäuse 2 eintauchen und dort schwenkbar gelagert sind, und den die zwei Hebelarmabschnitte 7a, 7b miteinander verbindenden Quersteg 8 wird ein sehr knickstabiler Schwenkhebel geschaffen, der äußerst kompakt und flach bauend ist. Der Quersteg 8 bietet dabei eine breite Grifffläche, um mit der Hand oder einem Betätigungswerkzeug eine Betätigungskraft zum Verschwenken des Betätigungselementes 3 auf den Schwenkhebel aufzubringen.By the embodiment of the
Erkennbar ist weiterhin, dass für den mittleren Federkraftklemmanschluss ein als Prüföffnung beidseits geöffneter Zwischenraum zwischen einer Leitereinführungsöffnungs-Begrenzungswand 9 und einer äußeren Begrenzungswand 10 des Isolierstoffgehäuses 2 gebildet ist, über den der zugeordnete Federkraftklemmanschluss (nicht sichtbar) für ein Prüfwerkzeug zugänglich ist. Grundsätzlich ist auch eine Prüföffnung von der Rückseite möglich.It can also be seen that, for the middle spring terminal connection, a gap which is open on both sides as a test opening is formed between a conductor insertion opening
Hierzu hat die Stromschiene 12 einen in Richtung Betätigungselement 3 nach oben abgewinkelten Halteabschnitt 15 mit einer Ausnehmung 16, die das Hindurchstecken eines elektrischen Leiters ermöglicht. Diese Ausnehmung 16 ist am freien Ende durch einen Haltesteg 17 begrenzt, an dem der Anlageschenkel 14 der Klemmfeder 13 anliegt. Die Klemmfeder 13 ist somit über den Haltesteg 17 an der Stromschiene 12 festgelegt. An den Anlageschenkel 14 schließt sich ein Federbogen 18 an, von dem sich der Klemmschenkel 19 mit einer Klemmkante 20 am freien Ende erstreckt. Deutlich wird, dass der Klemmschenkel 19 in seinem Endabschnitt mit einem Winkel von etwa 70° bis 110°, bevorzugt etwa 85° bis 95°, abgebogen ist. Von diesem abgebogenen Abschnitt ist dann das freie Ende mit der Klemmkante 20 wieder in Leitereinführungsrichtung zurückgebogen. Auf diese Weise steht der hier um etwa 90° abgebogene Abschnitt quer zur Leitereinsteckrichtung, so dass ein direktes Einstecken eines mehrdrähtigen bzw. feindrähtig elektrischen Leiters ohne vorheriges Öffnen der Klemmstelle durch Herumschwenken des Betätigungselementes 3 verhindert wird.For this purpose, the
Der Klemmschenkel 19 bildet dann durch Umbiegung einen Raum zur Aufnahme des freien abisolierten Endes des eingesteckten elektrischen Leiters und geht oberhalb der Leitereinführungsöffnung 4 in einen Federbogen 18 über. An den Federbogen 18 schließt sich ein Klemmschenkel 19 an, wobei das freie Ende des Klemmschenkels 19 eine Klemmkante 20 aufweist. Zwischen der Klemmkante 20 und der Stromschiene 10 wird eine Klemmstelle zum Anklemmen eines elektrischen Leiters (nicht dargestellt) gebildet.The clamping
Deutlich wird weiterhin, dass bei dieser Ausführungsform die Stromschiene 12 gegenüber der durch die Erstreckungsrichtung der Leitereinführungsöffnung 4 definierten Leitereinführungsrichtung L hin geneigt ist. Die Stromschiene 12 ist insbesondere relativ zur oberen Leitereinführungsöffnungs-Begrenzungswand 9 und des vorderen Abschnitts der gegenüberliegenden unteren Leitereinführungsöffnungs-Begrenzungswand um etwa 5° bis 25° geneigt. Damit wird eine Auflaufschräge für den elektrischen Leiter sowie an der Stromschiene 12 im Übergang zur Ausnehmung 16 eine Kontaktkante 21 bereitgestellt, die zusammen mit der Klemmkante 20 der Klemmfeder 13 eine definierte Klemmstelle bildet.It is also clear that in this embodiment the
Deutlich wird weiterhin, dass der Hebelarmabschnitt 7a in den vom Isolierstoffgehäuse 2 umschlossenen Raum hineintaucht und in einem teilkreisförmigen Lagerabschnitt 22 des Isolierstoffgehäuses 2 schwenkbar mit einem Schwenklagerbereich 23 des Hebelarmabschnitts 7a gelagert ist. An diesem Schwenklagerbereich 23 ist eine Betätigungskontur 24 vorgesehen, die mit einem seitlich vorstehenden Betätigungslappen (nicht sichtbar) des Klemmschenkels 19 der Klemmfeder 13 zusammenwirkt. Beim Verschwenken des Betätigungselementes 3 in die Offenstellung wird durch die Rotationsbewegung der Betätigungskontur 24 der Betätigungslappen verlagert, um die Klemmkante 20 des Klemmschenkels 19 der Klemmfeder 13 von der Stromschiene 12 weg zu bewegen und hierdurch die Klemmstelle für einen elektrischen Leiter zu öffnen.It is also clear that the
Deutlich wird, dass der stirnseitig teilkreisförmige Schwenklagerbereich 23 am teilkreisförmigen Lagerabschnitt 22 drehgelagert ist. Der Schwenklagerbereich 23 liegt dabei auch auf der Stromschiene 12 auf, die ebenfalls zur Lagerung des Betätigungselementes 3 beiträgt.It is clear that the frontally part-circular
Erkennbar ist weiterhin, dass das Isolierstoffgehäuse 2 zweiteilig ausgebildet ist. Hierbei ist ein hinteres Deckelteil 25 mit einem vorderen Gehäuseteil 26 durch Rastlaschen und/oder Rastöffnungen verrastet. Nach Einführen des Betätigungselementes 3 und des zugeordneten Federkraftklemmanschlusses 11 in das vordere Gehäuseteil 26 wird dieses durch Einschieben und Verrasten des rückseitigen Deckelteils 25 geschlossen.It can also be seen that the insulating
Weiterhin wird deutlich, dass der im Querschnitt U-förmiger Gehäusewandabschnitt 5 des Isolierstoffgehäuses 2 in den Freiraum 6 des Betätigungselementes 3 angrenzend an den Quersteg 8 hineintaucht. Auch unterhalb des Querstegs 8 ist ein durch die Hebelarmabschnitte 7a, 7b seitlich begrenzter Freiraum vorhanden, der auch mit einem Teil der äußeren Begrenzungswand 10 des Isolierstoffgehäuses 2 teilweise ausgefüllt ist. Diese äußere Begrenzungswand 10 bildet in dem dargestellten Schnitt eine obere Begrenzungswand für einen Zwischenraum 27.Furthermore, it is clear that the cross-sectionally U-shaped
Zum Beispiel für den mittleren Federkraftklemmanschluss 11 kann, wie aus
Der Zwischenraum 27 wird an der Seite, die der äußeren Begrenzungswand 10 gegenüber liegt, durch eine Leitereinführungsöffnungs-Begrenzungswand 9 begrenzt, an die sich die Leitereinführungsöffnung 4 anschließt.The
In den
In dieser Querschnittsansicht ist das linke Betätigungselement 3 geöffnet, während die rechts danebenliegenden Betätigungselemente 3 geschlossen sind. Die Blickrichtung der Darstellung in
Deutlich wird anhand der rechten beiden Betätigungselemente 3 in der Schließstellung, dass der Klemmschenkel 19 von einem Anlageschenkel 14 weg in Richtung Stromschiene 12 verlagert ist. Dies wird durch Verschwenken der Betätigungskontur 24 in einem Winkel von etwa 80 bis 90° erreicht.It is clear from the right two
Erkennbar ist weiterhin, dass der im Querschnitt U-förmige Gehäusewandabschnitt 5 aus einem Abschnitt der äußeren Begrenzungswand 10 und zwei im Abstand voneinander in Richtung Innenraum des Isolierstoffgehäuses 2 hineinragenden Seitenwandabschnitten 29a, 29b gebildet ist. Diese Seitenwandabschnitte 29a, 29b grenzen seitlich an den zugeordneten Federkraftklemmanschluss 11 an und nehmen den zugeordneten Federkraftklemmanschluss 11 teilweise in den Innenraum des im Querschnitt U-förmigen Gehäusewandabschnitts 5 auf. Der Federkraftklemmanschluss 11 ist dabei nach oben hin durch die obere, äußere Begrenzungswand 10 des U-förmigen Gehäusewandabschnitts 5 abgedeckt.It can also be seen that the
Erkennbar ist, dass die Seitenwandabschnitte 29a, 29b in einen Freiraum 30 des Schwenklagerbereichs 23 hineinragen, der zwischen der Ebene eines Hebelarmabschnitts 7a, 7b und dem vorspringenden Betätigungszapfen 28 gebildet ist.It can be seen that the
Die Luft- und Kriechstrecke der dargestellten Leiteranschlussklemme 1 ist durch die kürzeste Verbindung durch die Luft bzw. über die Oberfläche des Isoliermaterials zwischen dem Spannungspotential tragenden Federkraftklemmanschluss 13 und der Außenseite des Isolierstoffgehäuses 2 definiert. Die Luft- und Kriechstrecke verläuft an den Seitenwandabschnitten 29a des U-förmigen Gehäusewandabschnitts 5 entlang. Durch die sich in den Innenraum des Isolierstoffgehäuses 2 hinein erstreckenden Seitenwandabschnitte 29a, 29b werden ausreichend lange Luft- und Kriechstrecken entlang der Aussenseite der Seitenwandabschnitte 29a, 29b und um die untere Randkante 31 der Seitenwandabschnitte 29a, 29b herum bis an den Federkraftklemmanschuss 11 sichergestellt. Die Länge der Außenseiten der Seitenwandabschnitte 29a, 29b trägt zur Erhöhung der Luft- und Kriechstrecken dadurch bei, dass diese nicht direkt zugänglich sind, sondern seitlich benachbarte Hebelarmabschnitte 7a, 7b aufweisen.The creepage distance and the creepage distance of the illustrated
Weiterhin stabilisieren die in einen zugehörigen Freiraum 30 eintauchenden Seitenwandabschnitte 29a, 29b die Lagerung des Schwenkhebels im Isolierstoffgehäuse 2.Furthermore, the
Dieser Schnitt befindet sich in Leitereinsteckrichtung L gesehen unmittelbar hinter dem Federbogen 18 im Inneren des sich daran anschließenden Anlageschenkels 14 und Klemmschenkels 19. Erkennbar ist, dass in diesem Bereich die Seitenwandabschnitte 29a, 29b der im Querschnitt U-förmigen Gehäusewandabschnitte 5 jeweils in die darunterliegenden Begrenzungswände 9 der Leitereinführungsöffnung 4 übergehen. Zur Lagerung des Federbogens 18 bilden die Leitereinführungsöffnungs-Begrenzungswände 9 jeweils einen Vorsprung 32. Die Klemmfeder 13 wird mit ihrem Federbogen somit lagestabil in einen durch den im Querschnitt U-förmigen Gehäusewandabschnitt 5 begrenzten Raum aufgenommen. Dieser Raum ist zum Hebelarmabschnitt 7a, 7b hin abgeschlossen und nur über die relativ lange Leitereinführungsöffnung 4 und über die im Schnitt C-C erkennbaren kürzeren Verbindungswege nach von außen hin zugänglich. Diese im Schnitt C-C erkennbaren kürzeren Verbindungswege werden durch die Seitenwandabschnitte 29a, 29b zur Erhöhung der Luft- und Kriechstrecken wirksam verlängert.This section is seen in Leiterereinsteckrichtung L immediately behind the
Während der Zwischenraum 27 für den mittleren Federkraftklemmanschluss 11 stirnseitig an der vorderen und hinteren Stirnseite jeweils geöffnet ist, um das Spannungspotential an dem hierdurch zugänglichen Federkraftklemmanschluss 11 zu messen, ist auch bei dem rechten und linken Federkraftklemmanschluss 11 ein Zwischenraum 27 zwischen der äußeren Begrenzungswand 10 des Isolierstoffgehäuses bzw. des vorspringenden U-förmigen Gehäuseabschnitts 5 und der Leitereinführungsöffnungs-Begrenzungswand 9 vorhanden.While the
Mit Hilfe des vorspringenden U-förmigen Gehäuseabschnitts 5 wird unter Ausnutzung des Freiraums 6 des Betätigungselementes 3, in den der U-förmige Gehäuseabschnitt 5 hineinragt, eine sehr niedrige Bauhöhe, d.h. ein kompakter Aufbau unter Einhaltung der vorgeschriebenen Luft- und Kriechstrecken erreicht. Vorschriften zur Luft- und Kriechstrecken finden sich insbesondere in der Norm IEC 60947-1.With the help of the projecting
Deutlich wird anhand der
Die Seitenwandabschnitte 29a, 29b stellen im äußeren Bereich der Leiteranschlussklemme 1 durch die Seitenwand des Isolierstoffgehäuses 2 und den vorspringenden U-förmigen Gehäusewandabschnitt 5 eine seitliche Führung für einen Hebelarmabschnitt 7a, 7b des Betätigungselementes 3 beim Herunterschwenken bereit. In den mittleren Abschnitten wird durch die benachbarten vorspringenden U-förmigen Gehäusewandabschnitte 5 ein Zwischenraum zur Aufnahme zweier angrenzender Hebelarmabschnitte 7a, 7b benachbarter Betätigungselemente 3 bereitgestellt.The
In den Betätigungsausschnitt 33 der Betätigungskontur 24 ragt dann ein seitlich von einer Klemmfeder 13 vorspringender Materiallappen hinein, um bei Verschwenken des Betätigungselementes 3 die Klemmfeder, wie vorher beschrieben, zu öffnen.In the
Weiterhin ist erkennbar, dass an der vorderen Stirnseite des Querstegs 8 eine Betätigungswulst 34 vorgesehen ist. Diese verbessert das Ergreifen des Betätigungselementes 3 mit der Hand oder mit einem Betätigungswerkzeug, um das Betätigungselement 3 zu verschwenken.Furthermore, it can be seen that an
Claims (10)
- A conductor connection terminal (1) having an insulating material housing (2) and having at least one resilient force clamping connector (11) in the insulating material housing (2), and also having at least one actuating element (3) that is received in a pivotable manner in the insulating material housing (2), said actuating element (3) being designed so as to open in each case at least one allocated resilient force clamping connector (11), wherein the actuating element (3) comprises two lever arm sections (7a, 7b) that are spaced apart from one another, that protrude at least in part with a pivot bearing region (23) into the insulating material housing (2) and are connected one to the other spaced apart with respect to the pivot bearing region (23) by a transverse connecting piece (8) to a lever arm, and wherein on the side of the insulating material housing (2) on which the at least one actuating element (3) is arranged the at least one resilient force clamping connector (11) is covered by an outer boundary wall (10) of the insulating material housing (2), characterized in that lateral wall sections (29a, 29b) of the insulating material housing (2) that are adjacent on both sides to a respective allocated resilient force clamping connector (11) extend from the outer boundary wall (10) into the inner space of the insulating material housing (2), said lateral wall section (29a, 29b) are positioned laterally adjacent to a resilient force clamping connector (11) and form together with the outer boundary wall (10) a housing wall section of the insulating material housing (2) that has a U-shaped cross section and which accommodates a resilient force clamping connector (11) between it, and that when the respective actuating element (3) is in the closed state pivoted downwards in the direction of the insulating material housing (2) the lever arm sections (7a, 7b) of the actuating element (3) are adjacent to an outer wall of a respective allocated lateral wall section (29a, 29b) that lies laterally adjacent to a resilient force clamping connector (11).
- The conductor connection terminal (1) as claimed in claim 1, characterized in that the lateral wall sections (29a, 29b) that lie laterally adjacent to a resilient force clamping connector (11) and extend from the outer boundary wall (10) into the inner space of the insulating material housing (2) terminate in a section that extends over a pivot bearing region (23) of the associated actuating element (3) and is adjacent to this pivot bearing region (23).
- The conductor connection terminal (1) as claimed in claim 1 or 2, characterized in that the lateral wall sections (29a, 29b) that lie laterally adjacent to a resilient force clamping connector (11) extend from the outer boundary wall (10) into the inner space of the insulating material housing (2) merge in a section that extends over the conductor insertion opening (4) of the insulating material housing (2) and is in the boundary walls (9) of this conductor insertion opening (4).
- The conductor connection terminal (1) as claimed in one of the preceding claims, characterized in that when the respective allocated actuating element (3) is in the closed state in each case an elevated section (5) of the insulating material housing (2) protrudes into a free space (6) of the actuating element (3), said free space being adjacent to the transverse connecting piece (8) and being laterally defined by means of the lever arm elements (7a, 7b).
- The conductor connection terminal (1) as claimed in claim 4, characterized in that the elevated section (5) abuts flush with the upper face of the adjacent section of the actuating element (3).
- The conductor connector terminal (1) as claimed in one of the preceding claims, characterized in that when the respective allocated actuating element (3) is in the closed state in each case a section of an outer boundary wall (10) of the insulating material housing (2) is arranged directly below the transverse connecting piece (8) of the allocated actuating element (3) in a free space (6) that is formed by means of the transverse connecting piece (8) and lever arm sections (7a, 7b) that are adjacent to said transverse connecting piece (8).
- The conductor connection terminal (1) as claimed in claim 6, characterized by an intermediate space (27) between the outer boundary wall (10) of the insulating material housing (2) and an adjacent conductor insertion opening-boundary wall (9) for a conductor insertion opening (4), said boundary wall lying directly below the transverse connecting piece (8) of the allocated actuating element (3) when the respective actuating element (3) is in the closed state.
- The conductor connection terminal (1) as claimed in claim 7, characterized in that an intermediate space (27) of this type is open between the outer boundary wall (10) of the insulating material housing (2) and an adjacent conductor insertion opening-boundary wall (9) in order to form an inspection opening on an opposite-lying side and an adjacent resilient force clamping connector (11) is accessible for an inspection tool that is guided through the inspection opening by way of the intermediate space (27).
- The conductor connection terminal (1) as claimed in one of the preceding claims, characterized in that at least one of the pivot bearing regions (23) has an actuating contour (24) that can be brought into engagement with a resilient clamping element (13) of an allocated resilient force clamping connector (11) as the actuating element (3) is pivoted in order to open a clamping site of the resilient force clamping connector (11) in order to clamp an electrical conductor, said clamping site being formed by means of a clamping edge (20) of the clamping spring (13) and a current rail section of a current rail (12).
- The conductor connection terminal (1) as claimed in claim 9, characterized in that the current rail (12) extends over at least two resilient force clamping connectors (11) that are arranged adjacent one to the other in a row in order to connect electrical conductors one to the other in an electrically conductive manner, said electrical conductors being clamped to the at least two resilient force clamping connectors (11).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL14706795T PL2956995T3 (en) | 2013-02-13 | 2014-02-12 | Conductor terminal |
EP19192347.3A EP3588681A1 (en) | 2013-02-13 | 2014-02-12 | Conductor terminal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013101409.7A DE102013101409B4 (en) | 2013-02-13 | 2013-02-13 | conductor terminal |
PCT/EP2014/052717 WO2014124960A1 (en) | 2013-02-13 | 2014-02-12 | Conductor terminal |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19192347.3A Division EP3588681A1 (en) | 2013-02-13 | 2014-02-12 | Conductor terminal |
Publications (2)
Publication Number | Publication Date |
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EP2956995A1 EP2956995A1 (en) | 2015-12-23 |
EP2956995B1 true EP2956995B1 (en) | 2019-08-28 |
Family
ID=50184886
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19192347.3A Pending EP3588681A1 (en) | 2013-02-13 | 2014-02-12 | Conductor terminal |
EP14706795.3A Active EP2956995B1 (en) | 2013-02-13 | 2014-02-12 | Conductor terminal |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19192347.3A Pending EP3588681A1 (en) | 2013-02-13 | 2014-02-12 | Conductor terminal |
Country Status (10)
Country | Link |
---|---|
US (1) | US9466895B2 (en) |
EP (2) | EP3588681A1 (en) |
JP (1) | JP6047249B2 (en) |
KR (1) | KR102146016B1 (en) |
CN (2) | CN107910661B (en) |
DE (1) | DE102013101409B4 (en) |
ES (1) | ES2757901T3 (en) |
PL (1) | PL2956995T3 (en) |
RU (2) | RU2653697C2 (en) |
WO (1) | WO2014124960A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
EP2956995A1 (en) | 2015-12-23 |
CN104981943A (en) | 2015-10-14 |
RU2759944C2 (en) | 2021-11-19 |
RU2018112454A (en) | 2019-02-28 |
DE102013101409B4 (en) | 2022-01-20 |
RU2653697C2 (en) | 2018-05-14 |
JP2016507146A (en) | 2016-03-07 |
PL2956995T3 (en) | 2020-04-30 |
CN104981943B (en) | 2018-01-05 |
KR102146016B1 (en) | 2020-08-20 |
CN107910661B (en) | 2020-03-20 |
US20150349437A1 (en) | 2015-12-03 |
CN107910661A (en) | 2018-04-13 |
RU2015133918A (en) | 2017-03-20 |
EP3588681A1 (en) | 2020-01-01 |
DE102013101409A1 (en) | 2014-08-14 |
KR20150116848A (en) | 2015-10-16 |
ES2757901T3 (en) | 2020-04-30 |
WO2014124960A1 (en) | 2014-08-21 |
RU2018112454A3 (en) | 2021-09-08 |
US9466895B2 (en) | 2016-10-11 |
JP6047249B2 (en) | 2016-12-21 |
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