EP3836306A1 - Lead terminal clamp - Google Patents
Lead terminal clamp Download PDFInfo
- Publication number
- EP3836306A1 EP3836306A1 EP21155507.3A EP21155507A EP3836306A1 EP 3836306 A1 EP3836306 A1 EP 3836306A1 EP 21155507 A EP21155507 A EP 21155507A EP 3836306 A1 EP3836306 A1 EP 3836306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- spring
- busbar
- leg
- actuating
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 66
- 239000011810 insulating material Substances 0.000 claims abstract description 30
- 230000000284 resting effect Effects 0.000 claims abstract description 3
- 238000007373 indentation Methods 0.000 claims description 32
- 238000003780 insertion Methods 0.000 description 11
- 230000037431 insertion Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
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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
- H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
-
- 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
- H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing 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
- H01R4/4846—Busbar details
- H01R4/485—Single busbar common to multiple springs
-
- 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
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/515—Terminal blocks providing connections to wires or cables
-
- 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
Definitions
- the invention relates to a spring-loaded clamping connection with at least one loop-shaped bent clamping spring and a busbar, the clamping spring having a contact leg adjacent to the busbar, a spring arch adjoining the contact leg and a clamping leg adjoining the spring arch and with a free clamping end pointing in the direction of the busbar .
- the invention further relates to a conductor connection terminal with an insulating material housing.
- Such spring-loaded terminal connections are used to connect electrical conductors, e.g. in terminal blocks, box terminals, circuit board connectors, device connectors or the like.
- DE 10 2004 045 026 B3 discloses an electrical connection or connecting terminal with a loop-shaped clamping spring which has a U-shaped bent contact leg, an adjoining spring bow and a clamping leg adjoining the spring bow.
- the contact leg has a recess through which a busbar piece is passed in order to rest on a holder section punched out of the recess and on a transverse edge delimiting the recess.
- the free clamping end of the clamping leg points in the direction of the busbar and, together with the busbar, forms a clamping point for an electrical conductor to be connected.
- WO 2012/000639 A1 shows a connection terminal with a loop-shaped clamping spring, which has laterally protruding actuating tabs on the free clamping end of the clamping leg.
- a linearly displaceable actuating lever cooperates with the actuating tabs to a through to open the clamping leg and the clamping point formed by a busbar and / or to remove an electrical conductor.
- the object of the present invention is to create an improved spring-loaded terminal contact and an improved conductor connection terminal which enables installation in the insulating material housing that relieves the load on the insulating material housing.
- the at least one indentation creates a short web, which is narrower compared to the adjoining section of the contact leg.
- a web forms a flexible joint or hinge.
- One on the clamping leg and the spring bow on the clamping spring Acting force is intercepted via the flexible joint, ie the web, in such a way that the clamping spring is deformed so optimally without exerting excessive forces on an adjoining insulating material housing that the force is diverted to the adjoining contact leg and the busbar attached to it.
- the force connection of the clamping spring is thus reduced to an insulating housing.
- cutouts for relieving the force of the insulating material housing are thus provided.
- Indentation in the sense of the present invention is understood to mean a relatively short recess at the edge area of the contact leg, which leads in the area of the indentation to a web with a reduced width compared to the adjoining sections of the contact limb, the web in relation to the rest Sections of the contact leg has a shorter length.
- the at least one indentation is preferably arranged in a space above the busbar. This creates a hinge opposite the terminal point for connecting an electrical conductor between the section of the contact leg connected to the busbar and the section of the contact leg connected to the clamping leg via the spring arch, which relieves the force of the insulating material housing surrounding the spring-loaded terminal connection.
- the at least one indentation is preferably located in a space above the free clamping end of the clamping leg in the rest state of the clamping spring in that the clamping leg rests on the busbar.
- the hinge of the clamping spring created by the indentations with the web of reduced width thus acts in an optimal position in relation to the free clamping end of the clamping leg and an insulating material housing surrounding the clamping spring.
- the busbar is mounted on the contact leg so as to be tiltable.
- This provides a flexible run-up slope of the busbar that adapts to the conductor and can advantageously be reduced by the force acting on the insulating material housing when an electrical conductor is inserted and clamped to the spring-loaded terminal connection.
- the tiltable mounting of the busbar on the contact leg is in principle independent of the above-described special embodiment of the spring-loaded terminal connection with an indentation and can also achieve its advantageous effect with clamping springs without such an indentation.
- the clamping spring having a contact leg resting on the busbar, a spring bow adjoining the contact leg and a clamping leg adjoining the spring bow and with a free clamping end pointing in the direction of the busbar, it is therefore advantageous that the Busbar is tiltably mounted on the contact leg.
- the busbar then has protruding bearing lugs which, for the tiltable mounting of the busbar on the contact leg, each dip into an associated bearing opening or bearing recess.
- the busbar is therefore not attached immovably to the contact limb by welding or riveting, but is suspended in the contact limb and mounted on the contact limb such that it can be tilted.
- the busbar By latching the busbar on the contact leg by means of bearing lugs, the busbar is fixed in position relative to the at least one clamping spring.
- bearing openings or bearing troughs can either be surrounded on all sides by free end sections of the contact leg.
- bearing openings on the free end section of the contact leg are designed as indentations on the edge regions of the free end section. Such indentations are then only partially surrounded by the free end section of the contact leg and open to the outside over part of the circumference.
- a plurality of clamping springs are lined up next to one another at a distance from one another and have a common busbar extending in the direction of lacing up the clamping springs.
- a box terminal can be implemented in which electrical conductors that are connected to the clamping springs arranged next to one another can be connected to one another in an electrically conductive manner via the busbar.
- the plurality of clamping springs preferably has a common free end region of the contact legs that extends in the direction in which the clamping springs are arranged.
- the clamping springs are formed integrally, ie in one piece, with the free end region. This ensures that the clamping springs are arranged in a stable position with respect to one another via the common free end section and that a good flat support is provided for the busbar.
- FIG. 1 shows a perspective view of a first embodiment of a spring-loaded terminal connection 1 which has three clamping springs 2 arranged next to one another and bent in a loop.
- Each clamping spring 2 has a clamping leg 3 with a free clamping end 4.
- the clamping leg 3 merges into a spring arch 5, to which a contact leg 6 is connected.
- the contact leg 6 is bent over in a U-shape to form a conductor receiving pocket 7 for receiving a stripped free end of an electrical conductor clamped to the spring-loaded terminal connection.
- the free end section 8 of the contact leg 6 forms a support for a common busbar 9.
- the busbar 9 extends in the direction A of the juxtaposed clamping springs 2 and transversely to the conductor insertion direction L.
- the busbar 9 is supported on the free end section 8 of the contact leg 6. It can also be seen that the contact legs 6 are formed in one piece, integrally with the free end region 8 and the clamping springs 2 arranged next to one another and arranged at a distance from one another are thus connected to one another via the common free end section 8.
- the contact legs 6 each have two opposite indentations 12 in a section above the busbar 9 and the free clamping end 4 in the rest state. In this way, a web 13 is created, which compared to the adjacent sections of the contact leg 6 has a reduced width. It is also clear that the web 13 and the indentations 12 have a very short length compared to the adjoining length of the contact leg 6 up to the busbar 9. The indentation extends over a length that is less than a quarter of the total length of the contact leg 6.
- the indentations 12 and webs 13 implemented with them create a type of hinge between the spring arch 5 adjoining the web 13 with the clamping leg 3 and the remaining area of the contact leg 6 up to the busbar 9 adjoining the web 13.
- a force exerted upon actuation of the clamping leg 3, for example by an actuating lever, an actuating slide or a screwdriver, and a force transmitted to the contact leg 6 when an electrical conductor is clamped is reduced by the web 13 by slight deformation (bending) of the web 13, reducing the to a force exerted in the adjacent insulating material housing and diverted to the busbar 9.
- a flexible section of the contact leg 6 adjoining the spring bow 5 is created with which the force can be exerted can be reduced to an insulating housing.
- Figure 2 omits a perspective view of the clamping springs 2 of the spring-loaded terminal connection 1 Figure 1 detect.
- the U-shaped bent contact legs 6 are integrally connected to one another via a common free end section 8, which extends in the rowing direction A and transversely to the conductor insertion direction L over the three clamping springs 2.
- the free end section 8 has at least one bearing opening 14 for receiving a bearing nose of the busbar 9. In this way, the busbar 9 can be supported on the free end section 8 and fixed in position. The busbar 9 is not so firmly connected as with the free end section 8 that it cannot tilt.
- the spring-loaded terminal connection 1 thus adapts flexibly to the respective clamped-on electrical conductor.
- Figure 3 omits a side view of the spring-loaded terminal connection 1 Figure 1 detect. It becomes clear here that the busbar 9 is supported on the free end section 8 of the contact legs 6. It can also be seen that a clamping edge 10 of the free clamping end 4 of the clamping leg 3 rests on the busbar 9 in the idle state.
- the web 13 formed by the indentations 12 is seen in a direction transverse to the conductor insertion direction L above the busbar 9 and the free terminal end 4.
- the webs 12 is a flexible joint between the section formed by the spring bow 5 and the clamping legs 3 and that between the busbar 9 and the adjoining section of the contact leg 6 created.
- the clamping force of the free clamping end 4 on an electrical conductor is essentially applied by the spring bow 5.
- the flexible joint formed by the webs 13 means that further deformation forces are flexibly absorbed and are not transmitted to the insulating material housing to a large extent.
- Figure 4 leaves a perspective view of the spring-loaded terminal connection 1 Figure 1 recognize from below. It becomes clear here that the free end section 8 of the contact legs 6 has bearing openings 14 into which bearing lugs 15 protruding from the underside of the busbar 9 protrude.
- the busbar 9 is therefore not so firmly connected to the free end section 8 that the busbar 9 cannot be tilted relative to the free end section 8. However, it is fixed in position in the direction A and transversely with the aid of the bearing lugs 15 and the bearing opening 14.
- Figure 5 omits a top view of the spring-loaded terminal connection Figure 1 detect. It becomes clear here that the opposing indentations 12 on the edge regions of the contact legs 6 adjoin the transition to the spring arch 5 form webs 13. It becomes clear that the indentations 12 and webs 13 are arranged in the plan view above the busbar 9 and the free clamping end 4 of the clamping springs 2 in the rest position.
- the webs 13 have a smaller width than the width of the adjoining section of the contact leg 6 and of the spring bow 5.
- depressions can be seen on the busbar, which belong to the bearing lugs 15 protruding downwards. These bearing lugs 15 are pressed down from the material of the busbar 9 in the forming process.
- busbar 9 has an inclined ramp 16 in front of the free clamping end 4 of the clamping spring 2 and the contact edge 11, as seen in the conductor insertion direction L. This facilitates the introduction of an electrical conductor to the terminal point.
- Figure 6 leaves out a view of the spring-loaded terminal connection 1 Figure 1 recognize from below.
- the bearing lugs 15 protruding from the underside of the busbar 9 plunge into the bearing opening 14 of the free end section 8 of the contact legs 6.
- Figure 7 shows a second embodiment of a spring-loaded terminal connection 1 in the perspective view.
- the contact legs 6 have webs 13 formed by opposing indentations 12 in an area adjoining the spring arch 5.
- the embodiments differ, on the one hand, in the mounting of the busbar 9 on the contact legs 6 and, on the other hand, in the design of the clamping leg 3.
- actuating tabs 19 protrude from the edge regions of the clamping leg 3.
- the actuating tabs 19 are bent slightly upwards in the direction of the contact leg 6 and form an actuation support on which an actuating element, such as a pivot lever, can apply an actuating force to open a clamping point by lifting the clamping leg 3 in the direction of the section of the contact leg 6 located above it.
- an actuating element such as a pivot lever
- two actuating tabs 19 for a clamping spring 2 are provided on the two opposite edge regions of the clamping leg 3.
- Figure 8 shows a side view of the spring-loaded terminal connection from FIG. It becomes clear once again that the busbar rests in the free end of the contact leg bent upwards in the direction of the busbar 9 through the U-shaped bend 17 and additionally with the bearing lugs 15 located behind it, which dip into the bearing openings 14 of the section of the contact leg 6 be fixed in position.
- Figure 9 omits a perspective view of the clamping spring 2 for the spring-loaded terminal connection Figures 7 and 8 detect. It becomes clear that now the individual clamping springs 2 arranged next to one another are separate from one another. In this embodiment, the bearing openings 14 are formed by indentations in the edge region of the contact leg 6 in the free end section and are therefore not completely closed on the circumference. It is also clear that the free end 18 of the free end section 8 is bent upwards from the plane of the free end section 8 in the direction of the web 13 or in the direction of the free clamping end 4 of the clamping leg located approximately above it. It can also be seen that the actuating tabs 19 are formed on both sides at the edge regions of the clamping leg 3 by cutting or punching free the clamping end 4 and folding it down in the direction of the free end section 8.
- Figure 10 omits a top view of the spring-loaded terminal connection 1 Figure 7 detect. It is clear here that the actuating tabs 19 are in the top view in the space below the webs 13 and the indentations 12 forming them. The free clamping end 4 of the clamping leg 3, the actuating tabs 19 and the indentations 12 for forming the webs 13 are thus approximately one above the other in alignment.
- Figure 11 omits a view of the spring-loaded terminal connection 1 Figure 7 Recognize the busbar 9 from below. It becomes clear here that the protruding bearing lugs 15 dip into the bearing openings 14 formed from indentations on the free end section 8 of the contact legs 6.
- Figure 12 shows a perspective view of a conductor connection terminal 20.
- the conductor connection terminal 20 has an insulating material housing 21 into which one of the spring-loaded terminal connections 1 described above is installed with three clamping springs 2 arranged next to one another (not visible).
- the spring-loaded terminal connections 1 ie to open the terminal points formed in this way for connecting an electrical one
- Actuating levers 22 are accommodated in the insulating material housing 21 so as to be able to pivot.
- the insulating material housing has conductor insertion openings 23 on the front side for inserting electrical conductors to an associated terminal point of a clamping spring 2. These conductor insertion openings 23 extend into conductor insertion opening L into the interior of the insulating material housing 21.
- test opening 24 extending in the conductor insertion direction L is present above the central conductor insertion opening 23.
- the test opening 24 is open at the front and towards the adjoining spring-force terminal connection 1 in the interior, so that with the aid of an inserted test tool it can be determined whether there is a voltage potential at the spring-force terminal connection 1.
- Figure 13 shows a top view of the conductor connection terminal 20 with the section lines AA and BB.
- the upper, in Figure 12 left, operating lever is in the open position and is pivoted away from the insulating housing.
- the clamping point of the associated clamping spring is thus opened.
- the other two actuating levers 22 are folded down in the closed position in the direction of the insulating material housing 21 so that the clamping point is closed and the associated clamping spring exerts a clamping force via the free clamping section 4 on the busbar underneath and any electrical conductor (not shown) lying therebetween.
- Figure 14 omits a side sectional view in section BB through the conductor connection terminal 21 Figures 12 and 13 detect. It is clear here that a spring-loaded terminal connection 1 described above is built into the interior of the insulating material housing 21.
- the insulating housing 21 is designed in two parts and has a clamping housing part 25 and a cover part 26 that closes this at the rear.
- the actuating lever 22, which is pivotably mounted in the insulating material housing 21 has a pivot bearing pin 27 with a V-shaped cutout 28 in the interior between the busbar 9 and the web 13 of about 80 to 120 ° (in the illustrated embodiment, about 110 °). With the V-shaped cutout 28, an actuating contour 29 is created which acts on an associated actuating tab 19 in order to displace the clamping leg 3 in the direction of the web 13 located above it in order to open the clamping point.
- Figure 15 shows a side sectional view of the conductor connection terminal 20 with the actuating lever 22 closed in section AA of Figure 13 detect. It becomes clear that the clamping point is now closed. This is achieved in that the pivot pin 27 is rotated by approximately 90 °. The actuating tab 19 is released and the clamping leg 3 can move freely under the spring force applied by the spring bow 5 and exert a clamping force on the busbar and an electrical conductor possibly arranged between the busbar and the free clamping end 4.
- a type of spring joint or hinge is formed by the web 13, so that a force acting via the clamping leg 3 and the spring bow is flexibly absorbed by the clamping spring 2 itself without transferring significant force to the insulating material housing.
- Figure 16 shows a second embodiment of a conductor connection terminal 20.
- the actuating levers 22 and the insulating housing 21 located between them are also designed to be slightly different.
- Figure 17 omits a top view of the second embodiment of the conductor connection terminal 20 Figure 16 recognize with the cutting lines AA and BB.
- Figure 18 shows the conductor connection terminal 20 Figures 16 and 17 in section BB of the open actuating lever 22 with the terminal point open.
- a part-circular pivot pin 27 is arranged at the level above the busbar 9 and below the web 13 and is pivotably mounted in the insulating material housing.
- the busbar 9 with a U-shaped bend 17 is comparable to the second exemplary embodiment of a spring-loaded terminal connection 1 according to FIG Figures 7 to 11 executed.
- the actuating contour 29 formed on the pivot pin 27 is somewhat different than in the first embodiment according to FIG Figures 14 and 15 executed, functionally but comparable. Essentially, reference can therefore be made to the description relating to the first exemplary embodiment.
- Figure 19 omits a side sectional view of the conductor connection terminal 20
- Figures 16 and 17 recognize in section AA with the actuating lever 22 closed.
- the terminal point is closed by the free terminal end 4 of the clamping leg 3 is pressed down in the direction of the busbar 9 by the spring force of the clamping spring 5. Without an inserted electrical conductor as shown, the free terminal end 4 then rests on the busbar.
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Clamps And Clips (AREA)
- Installation Of Bus-Bars (AREA)
Abstract
Die Erfindung betrifft eine Leiteranschlussklemme (20)- mit einem Isolierstoffgehäuse (21),- mit einem Federkraftklemmanschluss (1) in dem Isolierstoffgehäuse (21) mit mindestens einer schlaufenförmig gebogenen Klemmfeder (2) und mit einer Stromschiene (9), wobei die Klemmfeder (2) einen an der Stromschiene (9) anliegenden Anlageschenkel (6), einen sich an den Anlageschenkel (6) anschließenden Federbogen (5) und einen sich an den Federbogen (5) anschließenden und mit einem freien Klemmende (4) in Richtung Stromschiene (9) weisenden Klemmschenkel (3) zur Bildung einer Klemmstelle hat,- mit einem Betätigungshebel (22) als Betätigungselement (22), wobei- der Betätigungshebel (22) schwenkbar in dem Isolierstoffgehäuse (21) zum Öffnen der Klemmstelle aufgenommen ist,- wobei an wenigstens einem Randbereich des Klemmschenkels (3) eine Betätigungslasche (19) hervorsteht, die nach oben in Richtung Anlageschenkel (6) hin gebogen ist und ein Betätigungsauflager bildet, an dem das Betätigungselement (22) eine Betätigungskraft zum Öffnen der Klemmstelle durch Anheben des Klemmschenkels (3) in Richtung darüberliegendem Abschnitt des Anlageschenkels (6) aufbringen kann.The invention relates to a conductor connection terminal (20) - with an insulating material housing (21), - with a spring-loaded terminal connection (1) in the insulating material housing (21) with at least one loop-shaped bent clamping spring (2) and with a busbar (9), the clamping spring ( 2) a contact leg (6) resting on the busbar (9), a spring bow (5) adjoining the contact leg (6) and a spring bow (5) adjoining the spring bow (5) and with a free clamping end (4) in the direction of the busbar ( 9) has facing clamping leg (3) to form a clamping point, - with an actuating lever (22) as actuating element (22), whereby- the actuating lever (22) is pivotably received in the insulating material housing (21) for opening the clamping point, - where an At least one edge area of the clamping leg (3) has an actuating tab (19) which is bent upwards in the direction of the contact leg (6) and forms an actuating support on which the actuating element nt (22) can apply an actuating force to open the clamping point by lifting the clamping leg (3) in the direction of the section of the contact leg (6) lying above it.
Description
Die Erfindung betrifft einen Federkraftklemmanschluss mit mindestens einer schlaufenförmig gebogenen Klemmfeder und einer Stromschiene, wobei die Klemmfeder einen an der Stromschiene anliegenden Anlageschenkel, einen sich an den Anlageschenkel anschließenden Federbogen und einen sich an den Federbogen anschließenden und mit einem freien Klemmende in Richtung Stromschiene weisenden Klemmschenkel hat.The invention relates to a spring-loaded clamping connection with at least one loop-shaped bent clamping spring and a busbar, the clamping spring having a contact leg adjacent to the busbar, a spring arch adjoining the contact leg and a clamping leg adjoining the spring arch and with a free clamping end pointing in the direction of the busbar .
Die Erfindung betrifft weiterhin eine Leiteranschlussklemme mit einem Isolierstoffgehäuse.The invention further relates to a conductor connection terminal with an insulating material housing.
Solche Federkraftklemmanschlüsse werden zum Anklemmen elektrischer Leiter z.B. in Reihenklemmen, Dosenklemmen, Leiterplattensteckverbindern, Gerätesteckverbindern oder ähnlichem eingesetzt.Such spring-loaded terminal connections are used to connect electrical conductors, e.g. in terminal blocks, box terminals, circuit board connectors, device connectors or the like.
Aus
Ausgehend hiervon ist es Aufgabe der vorliegenden Erfindung einen verbesserten Federkraftklemmkontakt und eine verbesserte Leiteranschlussklemme zu schaffen, die einen das Isolierstoffgehäuse entlastenden Einbau in das Isolierstoffgehäuse ermöglicht.On the basis of this, the object of the present invention is to create an improved spring-loaded terminal contact and an improved conductor connection terminal which enables installation in the insulating material housing that relieves the load on the insulating material housing.
Die Aufgabe wird durch den Federkraftklemmanschluss mit den Merkmalen des Anspruchs 1 und die Leiteranschlussklemme mit den Merkmalen des Anspruchs 10 gelöst. Vorteilhafte Ausführungsformen sind in den Unteransprüchen beschrieben.The object is achieved by the spring-loaded terminal connection with the features of
Durch die mindestens eine Einbuchtung wird ein kurzer im Vergleich zum daran anschließenden Abschnitt des Anlageschenkels schmalerer Steg geschaffen. Ein solcher Steg bildet ein flexibles Gelenk oder Scharnier. Eine auf über den Klemmschenkel und den Federbogen auf die Klemmfeder wirkende Kraft wird über das flexible Gelenk, d.h. den Steg, derart abgefangen, dass sich die Klemmfeder ohne Ausübung übermäßiger Kräfte auf ein anschließendes Isolierstoffgehäuse so optimal verformt, dass die Kraft zum anschließenden Anlageschenkel und auf die daran angeordnete Stromschiene abgeleitet wird. Damit ist der Kraftanschluss der Klemmfeder auf ein Isolierstoffgehäuse reduziert. Mit Hilfe der mindestens einen Einbuchtung im Anlageschenkel sind somit Freischnitte zur Kraftentlastung des Isolierstoffgehäuses bereitgestellt.The at least one indentation creates a short web, which is narrower compared to the adjoining section of the contact leg. Such a web forms a flexible joint or hinge. One on the clamping leg and the spring bow on the clamping spring Acting force is intercepted via the flexible joint, ie the web, in such a way that the clamping spring is deformed so optimally without exerting excessive forces on an adjoining insulating material housing that the force is diverted to the adjoining contact leg and the busbar attached to it. The force connection of the clamping spring is thus reduced to an insulating housing. With the aid of the at least one indentation in the contact leg, cutouts for relieving the force of the insulating material housing are thus provided.
Durch das Vorsehen mindestens einer Einbuchtung, d.h. einer Ausnehmung begrenzter Länge an Randbereich eines Anlageschenkels zur Bildung einer Bucht wird weiterhin erreicht, dass ein Freiraum im Anlageschenkel zur Aufnahme von Abschnitten eines den Federkraftklemmanschluss umgebenden Isolierstoffgehäuses oder unter Umständen auch von Abschnitten eines Betätigungselementes, das in das Isolierstoffgehäuse eingebaut ist, geschaffen wird, wenn der Federkraftklemmanschluss zur Bildung einer Leiteranschlussklemme bestimmungsgemäß in das Isolierstoffgehäuse eingebaut ist.By providing at least one indentation, ie a recess of limited length at the edge area of a contact leg to form a bay, it is further achieved that a free space in the contact leg for receiving sections of an insulating material housing surrounding the spring-loaded terminal connection or, under certain circumstances, sections of an actuating element that is inserted into the Insulating housing is installed, is created when the spring-loaded terminal connection is properly installed in the insulating material housing to form a conductor connection terminal.
Unter Einbuchtung im Sinne der vorliegenden Erfindung wird somit eine relativ kurze Ausnehmung am Randbereich des Anlageschenkels verstanden, der im Bereich der Einbuchtung zu einem Steg mit im Vergleich zu den sich daran anschließenden Abschnitten des Anlageschenkels verringerter Breite führt, wobei der Steg im Verhältnis zu den übrigen Abschnitten des Anlageschenkels eine geringere Länge hat.Indentation in the sense of the present invention is understood to mean a relatively short recess at the edge area of the contact leg, which leads in the area of the indentation to a web with a reduced width compared to the adjoining sections of the contact limb, the web in relation to the rest Sections of the contact leg has a shorter length.
Besonders vorteilhaft ist es, wenn beidseits eines Anlageschenkels ein Paar einander gegenüberliegende Einbuchtungen vorhanden sind und der Anlageschenkel im Bereich der Einbuchtungen einen Steg mit im Vergleich zu den zum Federbogen und zur Stromschiene hin gerichteten Abschnitten des Anlageschenkels verringerte Breite hat. Damit wird ein beidseits durch Einbuchtungen relativ zu den Seitenkanten des Anlageschenkels nach innen versetzter Steg geschaffen. Dies hat den Vorteil, dass Abschnitte des Isolierstoffgehäuses in einen Raum eintauchen können, der durch die sich an den Steg anschließenden Seitenkanten des Anlageschenkels begrenzt ist.It is particularly advantageous if a pair of opposing indentations are present on both sides of a contact leg and the contact leg in the area of the indentations has a web with a reduced width compared to the sections of the contact leg directed towards the spring arch and the busbar. In this way, indentations on both sides are made relative to the side edges of the contact leg inwardly offset bridge created. This has the advantage that sections of the insulating material housing can dip into a space which is delimited by the side edges of the contact leg adjoining the web.
Die mindestens eine Einbuchtung ist vorzugsweise in einem Raum oberhalb der Stromschiene angeordnet. Damit wird gegenüberliegend der Klemmstelle für das Anschließen eines elektrischen Leiters ein Scharnier zwischen dem mit der Stromschiene verbundenen Abschnitt des Anlageschenkels und dem über den Federbogen mit dem Klemmschenkel verbundenen Abschnitts des Anlageschenkels geschaffen, der zu einer Kraftentlastung des den Federkraftklemmanschluss umgebenen Isolierstoffgehäuses führt.The at least one indentation is preferably arranged in a space above the busbar. This creates a hinge opposite the terminal point for connecting an electrical conductor between the section of the contact leg connected to the busbar and the section of the contact leg connected to the clamping leg via the spring arch, which relieves the force of the insulating material housing surrounding the spring-loaded terminal connection.
Die mindestens eine Einbuchtung befindet sich vorzugsweise in einem Raum oberhalb des freien Klemmendes des Klemmschenkels im Ruhezustand der Klemmfeder, indem der Klemmschenkel auf der Stromschiene aufliegt. Das durch die Einbuchtungen mit dem Steg verringerter Breite geschaffene Scharnier der Klemmfeder wirkt damit im Bezug auf das freie Klemmende des Klemmschenkels und ein die Klemmfeder umgebendes Isolierstoffgehäuse an einer optimalen Position.The at least one indentation is preferably located in a space above the free clamping end of the clamping leg in the rest state of the clamping spring in that the clamping leg rests on the busbar. The hinge of the clamping spring created by the indentations with the web of reduced width thus acts in an optimal position in relation to the free clamping end of the clamping leg and an insulating material housing surrounding the clamping spring.
Besonders vorteilhaft ist es, wenn die Stromschiene kippbeweglich an dem Anlageschenkel gelagert ist. Damit wird eine nachgiebige, sich an den Leiter anpassende Auflaufschräge der Stromschiene bereitgestellt, die durch die eine auf das Isolierstoffgehäuse wirkende Kraft beim Einstecken und Anklemmen eines elektrischen Leiters an den Federkraftklemmanschluss vorteilhaft verringert werden kann. Die kippbewegliche Lagerung der Stromschiene an dem Anlageschenkel ist im Prinzip unabhängig von der oben beschriebenen speziellen Ausführungsform des Federkraftklemmanschlusses mit einer Einbuchtung und kann auch bei Klemmfedern ohne eine solche Einbuchtung seine vorteilhafte Wirkung erzielen. Bei einer schlaufenförmig gebogenen Klemmfeder mit einer Stromschiene, wobei die Klemmfeder einen an der Stromschiene anliegenden Anlageschenkel, einen sich an den Anlageschenkel anschließenden Federbogen und einen sich an den Federbogen anschließenden und mit einem freien Klemmende in Richtung Stromschiene weisenden Klemmschenkel hat, ist es somit vorteilhaft, dass die Stromschiene kippbeweglich an dem Anlageschenkel gelagert ist.It is particularly advantageous if the busbar is mounted on the contact leg so as to be tiltable. This provides a flexible run-up slope of the busbar that adapts to the conductor and can advantageously be reduced by the force acting on the insulating material housing when an electrical conductor is inserted and clamped to the spring-loaded terminal connection. The tiltable mounting of the busbar on the contact leg is in principle independent of the above-described special embodiment of the spring-loaded terminal connection with an indentation and can also achieve its advantageous effect with clamping springs without such an indentation. At a Loop-shaped bent clamping spring with a busbar, the clamping spring having a contact leg resting on the busbar, a spring bow adjoining the contact leg and a clamping leg adjoining the spring bow and with a free clamping end pointing in the direction of the busbar, it is therefore advantageous that the Busbar is tiltably mounted on the contact leg.
Besonders vorteilhaft ist es, wenn der Anlageschenkel an seinem freien Endabschnitt Lageröffnungen oder Lagermulden aufweist. Die Stromschiene hat dann vorstehende Lagernasen, die zur kippbeweglichen Lagerung der Stromschiene an dem Anlageschenkel jeweils in eine zugeordnete Lageröffnung oder Lagermulde eintauchen.It when the contact leg has bearing openings or bearing depressions on its free end section is particularly advantageous. The busbar then has protruding bearing lugs which, for the tiltable mounting of the busbar on the contact leg, each dip into an associated bearing opening or bearing recess.
Die Stromschiene ist damit nicht durch Verschweißen oder Vernieten unbeweglich an dem Anlageschenkel angebracht, sondern in den Anlageschenkel eingehängt und kippbeweglich auf dem Anlageschenkel gelagert. Durch die Verrastung der Stromschiene an dem Anlageschenkel mittels Lagernasen wird die Stromschiene relativ zu der mindestens einen Klemmfeder lagefixiert.The busbar is therefore not attached immovably to the contact limb by welding or riveting, but is suspended in the contact limb and mounted on the contact limb such that it can be tilted. By latching the busbar on the contact leg by means of bearing lugs, the busbar is fixed in position relative to the at least one clamping spring.
Die Lageröffnungen oder Lagermulden können entweder allseits von freien Endabschnitten des Anlageschenkels umgeben sein. Denkbar ist aber auch, dass Lageröffnungen an den freien Endabschnitt des Anlageschenkels als Einbuchtungen an den Randbereichen des freien Endabschnitts ausgebildet sind. Solche Einbuchtungen sind dann nur teilweise von dem freien Endabschnitt des Anlageschenkels umgeben und über einen Teil des Umfangs nach Außen geöffnet.The bearing openings or bearing troughs can either be surrounded on all sides by free end sections of the contact leg. However, it is also conceivable that bearing openings on the free end section of the contact leg are designed as indentations on the edge regions of the free end section. Such indentations are then only partially surrounded by the free end section of the contact leg and open to the outside over part of the circumference.
Besonders vorteilhaft ist es, wenn eine Mehrzahl von Klemmfedern im Abstand zueinander nebeneinander aufgereiht ist und eine gemeinsame, sich in Aufreihrichtung der Klemmfedern erstreckende Stromschiene haben. Auf diese Weise kann z.B. eine Dosenklemme realisiert werden, bei der elektrische Leiter, die an die nebeneinander angeordneten Klemmfedern angeschlossen sind, elektrisch leitend über die Stromschiene miteinander verbunden werden können.It is particularly advantageous if a plurality of clamping springs are lined up next to one another at a distance from one another and have a common busbar extending in the direction of lacing up the clamping springs. In this way, for example, a box terminal can be implemented in which electrical conductors that are connected to the clamping springs arranged next to one another can be connected to one another in an electrically conductive manner via the busbar.
Die Mehrzahl von Klemmfedern hat vorzugsweise einen gemeinsamen, sich in Anreihrichtung der Klemmfedern erstreckenden freien Endbereich der Anlageschenkel. Die Klemmfedern sind dabei integral, d.h. einstückig, mit dem freien Endbereich geformt. Damit wird erreicht, dass die Klemmfedern über den gemeinsamen freien Endabschnitt lagestabil zueinander angeordnet sind und eine gute flächige Auflage für die Stromschiene bereitgestellt wird.The plurality of clamping springs preferably has a common free end region of the contact legs that extends in the direction in which the clamping springs are arranged. The clamping springs are formed integrally, ie in one piece, with the free end region. This ensures that the clamping springs are arranged in a stable position with respect to one another via the common free end section and that a good flat support is provided for the busbar.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit den beigefügten Zeichnungen näher erläutert. Es zeigen:
- Figur 1 -
- Perspektivische Ansicht einer ersten Ausführungsform eines Federkraftklemmanschlusses mit drei nebeneinander angeordneten Klemmfedern und einer gemeinsamen Stromschiene;
- Figur 2 -
- Perspektivische Ansicht der Klemmfedern des Federkraftklemmanschlusses aus
;Figur 1 - Figur 3 -
- Seitenansicht des Federkraftklemmanschlusses aus
;Figur 1 - Figur 4 -
- Perspektivische Ansicht des Federkraftklemmanschlusses aus
undFigur 13 von unten; - Figur 5 -
- Draufsicht auf den Federkraftklemmanschluss aus
;Figur 1 - Figur 6 -
- Draufsicht auf den Federkraftklemmanschluss aus
von unten;Figur 1 - Figur 7 -
- Perspektivische Ansicht einer zweiten Ausführungsform eines Federkraftklemmanschlusses;
- Figur 8 -
- Seitenansicht des Federkraftklemmanschlusses aus
;Figur 7 - Figur 9 -
- Perspektivische Ansicht einer Klemmfeder des Federkraftklemmanschlusses aus
;Figur 7 - Figur 10 -
- Draufsicht auf den
Federkraftklemmanschluss aus Figur 7 ; - Figur 11 -
- Ansicht des Federkraftklemmanschlusses aus
Figur 7 von unten; - Figur 12 -
- Perspektivische Ansicht einer Leiteranschlussklemme mit Betätigungshebel;
- Figur 13 -
- Draufsicht auf die
Leiteranschlussklemme aus Figur 12 ; - Figur 14 -
- Seiten-Schnittansicht durch die
Leiteranschlussklemme aus Figuren 12 und 13 im Schnitt B-B bei geöffneten Betätigungshebel; - Figur 15 -
- Seiten-Schnittansicht durch die
Leiteranschlussklemme aus Figuren 12 und 13 im Schnitt A-A bei geschlossenen Betätigungshebel; - Figur 16 -
- Perspektivische Ansicht einer zweiten Ausführungsform einer Leiteranschlussklemme;
- Figur 17 -
- Draufsicht auf die
Leiteranschlussklemme aus Figur 16 ; - Figur 18 -
- Seiten-Schnittansicht durch die
Leiteranschlussklemme aus Figuren 16 und 17 im Schnitt B-B bei geöffneten Betätigungshebel; - Figur 19 -
- Seiten-Schnittansicht durch die
Leiteranschlussklemme der Figuren 16 und 17 im Schnitt A-A bei geschlossenen Betätigungshebel.
- Figure 1 -
- Perspective view of a first embodiment of a spring-loaded terminal connection with three clamping springs arranged next to one another and a common busbar;
- Figure 2 -
- Perspective view of the clamping springs of the spring clamp connection from
Figure 1 ; - Figure 3 -
- Side view of the spring-loaded terminal connection
Figure 1 ; - Figure 4 -
- Perspective view of the spring-loaded terminal connection
Figure 1 and3 from underneath; - Figure 5 -
- Top view of the spring-loaded terminal connection
Figure 1 ; - Figure 6 -
- Top view of the spring-loaded terminal connection
Figure 1 from underneath; - Figure 7 -
- Perspective view of a second embodiment of a spring-loaded terminal connection;
- Figure 8 -
- Side view of the spring-loaded terminal connection
Figure 7 ; - Figure 9 -
- Perspective view of a clamping spring of the spring-loaded terminal connection from
Figure 7 ; - Figure 10 -
- Top view of the spring-loaded terminal connection
Figure 7 ; - Figure 11 -
- View of the spring-loaded terminal connection
Figure 7 from underneath; - Figure 12 -
- Perspective view of a conductor connection terminal with an actuating lever;
- Figure 13 -
- Top view of the conductor connection terminal
Figure 12 ; - Figure 14 -
- Side sectional view through the conductor connection terminal
Figures 12 and 13 in section BB with the operating lever open; - Figure 15 -
- Side sectional view through the conductor connection terminal
Figures 12 and 13 in section AA with the actuating lever closed; - Figure 16 -
- Perspective view of a second embodiment of a conductor connection terminal;
- Figure 17 -
- Top view of the conductor connection terminal
Figure 16 ; - Figure 18 -
- Side sectional view through the conductor connection terminal
Figures 16 and 17 in section BB with the operating lever open; - Figure 19 -
- Side sectional view through the conductor connection terminal of the
Figures 16 and 17 in section AA with the operating lever closed.
Deutlich wird, dass die Stromschiene 9 auf dem freien Endabschnitt 8 der Anlageschenkel 6 aufgelagert ist. Erkennbar ist weiterhin, dass die Anlageschenkel 6 einstückig, integral mit dem freien Endbereich 8 geformt sind und die nebeneinander angeordneten im Abstand zueinander angeordneten Klemmfedern 2 somit über den gemeinsamen freien Endabschnitt 8 miteinander verbunden sind.It becomes clear that the
In der dargestellten Ruheposition liegt das freie Klemmende 4 des Klemmschenkels 3 auf der Stromschiene 9 auf. Bei Einklemmen eines elektrischen Leiters zwischen dem freien Klemmende 4 und der Stromschiene 9 wird eine Klemmstelle zwischen einer Klemmkante 10 am freien Klemmende 4 und einer Kontaktkante 11 an der Stromschiene 9 geschaffen, um den elektrischen Leiter mit der Stromschiene 9 elektrisch zu kontaktieren. Das freie Klemmende 4 ist gegenüber dem Klemmschenkel 3 in Richtung der Stromschiene 9 abgebogen.In the rest position shown, the
Deutlich wird, dass die Anlageschenkel 6 in einem Abschnitt oberhalb der Stromschiene 9 und des freien Klemmendes 4 im Ruhezustand jeweils zwei einander gegenüberliegende Einbuchtungen 12 haben. Hierdurch wird ein Steg 13 geschaffen, der eine im Vergleich zu den angrenzenden Abschnitten des Anlageschenkels 6 verringerte Breite hat. Deutlich wird auch, dass der Steg 13 und die Einbuchtungen 12 eine im Vergleich zu der sich daran anschließenden Länge des Anlageschenkels 6 bis zur Stromschiene 9 sehr geringe Länge hat. Die Einbuchtung erstreckt sich dabei über eine Länge, die weniger als ein Viertel der gesamten Länge des Anlageschenkels 6 beträgt.It is clear that the
Durch die Einbuchtungen 12 und hiermit realisierten Stege 13 wird eine Art Scharnier zwischen dem sich an den Steg 13 anschließenden Federbogen 5 mit dem Klemmschenkel 3 und dem sich an den Steg 13 anschließenden restlichen Bereich des Anlageschenkels 6 bis zur Stromschiene 9 geschaffen. Eine bei Betätigung des Klemmschenkels 3 z.B. durch einen Betätigungshebel, einen Betätigungsschieber oder einen Schraubendreher ausgeübte Kraft und eine beim Anklemmen eines elektrischen Leiters auf den Anlageschenkel 6 übertragene Kraft wird durch den Steg 13 durch leichte Verformung (Verbiegen) des Steges 13 unter Reduzierung der auf ein angrenzendes Isolierstoffgehäuse ausgeübten Kraft aufgefangen und zur Stromschiene 9 hin abgeleitet. Mit Hilfe der Einbuchtung 12 wird somit ein an den Federbogen 5 angrenzender flexibler Abschnitt des Anlageschenkels 6 geschaffen, mit dem der Krafteinfluss auf ein Isolierstoffgehäuse verringert werden kann.The
Zur weiteren Stabilisierung des Isolierstoffgehäuses ist dabei zusätzlich denkbar, dass Abschnitte des Isolierstoffgehäuses in die Einbuchtungen 12 eintauchen und somit dieser Raum der Einbuchtungen 12 zur Verstärkung des Isolierstoffgehäuses mitgenutzt wird.To further stabilize the insulating material housing, it is also conceivable that sections of the insulating material housing dip into the
Erkennbar ist auch, dass die Stege 13 eine geringere Breite haben, als die Breite des sich daran anschließenden Abschnitts des Anlageschenkels 6 sowie des Federbogens 5.It can also be seen that the
Auf der Stromschiene sind Einsenkungen erkennbar, die zu den nach unten vorstehenden Lagernasen 15 gehören. Diese Lagernasen 15 sind im Umformvorgang aus dem Material der Stromschiene 9 nach unten gepresst.Depressions can be seen on the busbar, which belong to the bearing lugs 15 protruding downwards. These bearing lugs 15 are pressed down from the material of the
Deutlich wird auch, dass die Stromschiene 9 eine schräg verlaufende Auflauframpe 16 in Leitereinführungsrichtung L gesehen vor dem freien Klemmende 4 der Klemmfeder 2 und der Kontaktkante 11 haben. Hierdurch wird das Einführen eines elektrischen Leiters zur Klemmstelle erleichtert.It is also clear that the
Die Ausführungsformen unterscheiden sich einerseits in der Lagerung der Stromschiene 9 an den Anlageschenkeln 6 und andererseits in der Ausgestaltung des Klemmschenkels 3.The embodiments differ, on the one hand, in the mounting of the
Deutlich wird, dass von der Oberseite der Stromschiene 9 zur Unterseite innen eingeprägt und von der Ebene der Unterseite der Stromschiene 9 vorstehende Lagernasen 15 an der Stromschiene 9 ausgebildet sind. Weiterhin wird deutlich, dass die Stromschiene in Leitereinführungsrichtung L gesehen vor dem Anlagepunkt des freien Klemmendes 4 über die Erstreckungslänge der Stromschiene 9 eine U-förmige Biegung 17 hat. Die sich in Anreihrichtung A erstreckende Oberseite der U-förmigen Biegung 17 bildet eine Kontaktkante 11 für einen anzuklemmenden elektrischen Leiter. Zudem ist das freie Ende 18 des freien Endabschnitts 8 der Anlageschenkel 6 nach oben in Richtung Stromschiene 9 hin abgebogen, so dass die Stromschiene in Verbindung mit den in die Lageröffnungen 14 eintauchenden Lagernasen 15 lagefixiert ist.It is clear that embossed on the inside from the top of the
Weiterhin ist erkennbar, dass an den Randbereichen des Klemmschenkels 3 Betätigungslaschen 19 hervorstehen. Die Betätigungslaschen 19 sind leicht nach oben in Richtung Anlageschenkel 6 hin gebogen und bilden ein Betätigungsauflager, an dem ein Betätigungselement, wie beispielsweise ein Schwenkhebel, eine Betätigungskraft zum Öffnen einer Klemmstelle durch Anheben des Klemmschenkels 3 in Richtung darüberliegendem Abschnitt des Anlageschenkels 6 aufbringen kann. Im Bereich der Betätigungslaschen 19 ist das freie Klemmende 4 gegenüber dem Klemmschenkel 3 in Richtung Stromschiene 9 hin abgebogen.It can also be seen that actuating
In dem dargestellten Ausführungsbeispiel sind an den beiden gegenüberliegenden Randbereichen des Klemmschenkels 3 zwei Betätigungslaschen 19 für eine Klemmfeder 2 vorhanden. Denkbar ist aber auch, dass nur eine Betätigungslasche 19 pro Klemmfeder 2 vorgesehen ist.In the exemplary embodiment shown, two actuating
Weiterhin ist erkennbar, dass oberhalb der mittleren Leitereinführungsöffnung 23 eine sich in Leitereinführungsrichtung L erstreckte Prüföffnung 24 vorhanden ist. Die Prüföffnung 24 ist stirnseitig und zum angrenzenden Federkraftklemmanschluss 1 in dem Innenraum hin geöffnet, so dass mit Hilfe eines eingeführten Prüfwerkzeuges festgestellt werden kann, ob an dem Federkraftklemmanschluss 1 ein Spannungspotential anliegt. Alternativ oder zusätzlich hierzu ist auch denkbar, dass im hinteren, den Leitereinführungsöffnungen 23 gegenüberliegenden Bereich an der Oberseite oder Rückseite eine Prüföffnung 24' vorhanden ist.It can also be seen that a
Durch den Steg 13 wird eine Art Federgelenk oder Scharnier gebildet, so dass eine über den Klemmschenkel 3 und den Federbogen wirkende Kraft flexibel von der Klemmfeder 2 selbst aufgenommen wird, ohne wesentliche Kraft auf das Isolierstoffgehäuse zu übertragen.A type of spring joint or hinge is formed by the
Im Vergleich zu
In dem dargestellten Schnitt A-A ist auch die vordere Prüföffnung 24 oberhalb der mittleren Leitereinführungsöffnung 23 sowie eine von oben zugängliche rückseitige Prüföffnung 24' erkennbar.In the illustrated section A-A, the front test opening 24 above the central
Claims (8)
dadurch gekennzeichnet, dass
das freie Klemmende (4) im Bereich der Betätigungslasche (19) gegenüber dem Klemmschenkel (3) in Richtung Stromschiene (9) hin abgebogen ist.Conductor connection terminal (20) according to claim 1,
characterized in that
the free clamping end (4) in the area of the actuating tab (19) is bent towards the clamping leg (3) in the direction of the busbar (9).
dadurch gekennzeichnet, dass
der Anlageschenkel (6) unter Bildung einer Leiteraufnahmetasche (7) zur Aufnahme eines abisolierten freien Endes eines an den Federkraftklemmanschluss (1) anklemmbaren elektrischen Leiters U-förmig umgebogen ist.Conductor connection terminal (20) according to one of the preceding claims,
characterized in that
the contact leg (6) is bent in a U-shape to form a conductor receiving pocket (7) for receiving a stripped free end of an electrical conductor that can be clamped to the spring-loaded terminal connection (1).
dadurch gekennzeichnet, dass
in dem der Stromschiene (9) gegenüberliegenden Abschnitt des Anlageschenkels (6) durch mindestens eine Einbuchtung (12) ein Steg (13) ausgebildet ist.Conductor connection terminal (20) according to one of the preceding claims,
characterized in that
in the section of the contact leg (6) opposite the busbar (9), a web (13) is formed by at least one indentation (12).
dadurch gekennzeichnet, dass
ein Abschnitt des Betätigungselementes (22) im Freiraum der Einbuchtung (12) im Anlageschenkel (6) aufgenommen ist.Conductor connection terminal (20) according to claim 4,
characterized in that
a section of the actuating element (22) is received in the free space of the indentation (12) in the contact leg (6).
dadurch gekennzeichnet, dass
der Steg (13) durch seine reduzierte Breite elastischer als die angrenzenden Abschnitte des Anlageschenkels (6) ist.Conductor connection terminal (20) according to claim 4 or 5,
characterized in that
the web (13) is more elastic than the adjacent sections of the contact leg (6) due to its reduced width.
dadurch gekennzeichnet, dass
der Steg (13) eine geringere Breite als die Breite des sich daran schließenden Abschnitts des Anlageschenkels (6) hat, und
der Steg (13) eine geringere Breite als die Breite des Federbogens (5) hat.Conductor connection terminal (20) according to one of claims 4 to 6,
characterized in that
the web (13) has a smaller width than the width of the portion of the contact leg (6) that adjoins it, and
the web (13) has a smaller width than the width of the spring arch (5).
dadurch gekennzeichnet, dass
das freie Klemmende (4) eine Klemmkante (10) zur Schaffung der Klemmstelle aufweist.Conductor connection terminal (20) according to one of the preceding claims,
characterized in that
the free clamping end (4) has a clamping edge (10) to create the clamping point.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013101411.9A DE102013101411B4 (en) | 2013-02-13 | 2013-02-13 | Spring terminal connection and conductor terminal |
PCT/EP2014/052720 WO2014124962A1 (en) | 2013-02-13 | 2014-02-12 | Spring-loaded connection terminal and conductor connection terminal |
EP14704144.6A EP2956994B1 (en) | 2013-02-13 | 2014-02-12 | Spring-loaded connection terminal and conductor connection terminal |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14704144.6A Division-Into EP2956994B1 (en) | 2013-02-13 | 2014-02-12 | Spring-loaded connection terminal and conductor connection terminal |
EP14704144.6A Division EP2956994B1 (en) | 2013-02-13 | 2014-02-12 | Spring-loaded connection terminal and conductor connection terminal |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3836306A1 true EP3836306A1 (en) | 2021-06-16 |
Family
ID=50097688
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18205463.5A Active EP3460919B1 (en) | 2013-02-13 | 2014-02-12 | Cable connection clamp |
EP14704144.6A Active EP2956994B1 (en) | 2013-02-13 | 2014-02-12 | Spring-loaded connection terminal and conductor connection terminal |
EP21155507.3A Pending EP3836306A1 (en) | 2013-02-13 | 2014-02-12 | Lead terminal clamp |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18205463.5A Active EP3460919B1 (en) | 2013-02-13 | 2014-02-12 | Cable connection clamp |
EP14704144.6A Active EP2956994B1 (en) | 2013-02-13 | 2014-02-12 | Spring-loaded connection terminal and conductor connection terminal |
Country Status (9)
Country | Link |
---|---|
US (1) | US9478874B2 (en) |
EP (3) | EP3460919B1 (en) |
JP (1) | JP6396334B2 (en) |
KR (1) | KR102149849B1 (en) |
CN (2) | CN109524802B (en) |
DE (2) | DE102013101411B4 (en) |
PL (1) | PL2956994T3 (en) |
RU (1) | RU2652780C2 (en) |
WO (1) | WO2014124962A1 (en) |
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- 2014-02-12 DE DE202014011262.2U patent/DE202014011262U1/en not_active Expired - Lifetime
- 2014-02-12 CN CN201811425168.1A patent/CN109524802B/en active Active
- 2014-02-12 CN CN201480008755.4A patent/CN104995800B/en active Active
- 2014-02-12 KR KR1020157021571A patent/KR102149849B1/en active IP Right Grant
- 2014-02-12 PL PL14704144T patent/PL2956994T3/en unknown
- 2014-02-12 US US14/767,714 patent/US9478874B2/en active Active
- 2014-02-12 EP EP14704144.6A patent/EP2956994B1/en active Active
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Also Published As
Publication number | Publication date |
---|---|
US9478874B2 (en) | 2016-10-25 |
EP2956994B1 (en) | 2021-04-07 |
KR20150119856A (en) | 2015-10-26 |
EP3460919B1 (en) | 2019-11-27 |
CN109524802B (en) | 2021-02-19 |
RU2652780C2 (en) | 2018-05-08 |
RU2015138698A (en) | 2017-03-20 |
KR102149849B1 (en) | 2020-09-01 |
EP3460919A1 (en) | 2019-03-27 |
DE102013101411B4 (en) | 2018-03-22 |
JP6396334B2 (en) | 2018-09-26 |
WO2014124962A1 (en) | 2014-08-21 |
PL2956994T3 (en) | 2021-10-25 |
DE102013101411A1 (en) | 2014-08-14 |
CN109524802A (en) | 2019-03-26 |
CN104995800A (en) | 2015-10-21 |
CN104995800B (en) | 2018-12-25 |
JP2016507148A (en) | 2016-03-07 |
US20150372401A1 (en) | 2015-12-24 |
EP2956994A1 (en) | 2015-12-23 |
DE202014011262U1 (en) | 2018-11-21 |
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