EP2846408B2 - Actuation device for an electric connection terminal - Google Patents
Actuation device for an electric connection terminal Download PDFInfo
- Publication number
- EP2846408B2 EP2846408B2 EP14190509.1A EP14190509A EP2846408B2 EP 2846408 B2 EP2846408 B2 EP 2846408B2 EP 14190509 A EP14190509 A EP 14190509A EP 2846408 B2 EP2846408 B2 EP 2846408B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pusher
- connection terminal
- housing
- electrical connection
- pusher arm
- 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 claims description 64
- 239000011810 insulating material Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000036316 preload Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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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
- 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
- H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/50—Bases; Cases formed as an integral body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
-
- 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
- H01R4/48—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
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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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
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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
- 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
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
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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
- H01R4/484—Spring housing details
Definitions
- the invention relates to an electrical connection terminal with an actuating device, the electrical connection terminal comprising a contact frame arranged in an insulating material housing and having a conductor clamping connection for an electrical conductor, and the actuating device comprising an actuating element designed as a pusher which is integrally connected to the insulating material housing, and the conductor clamping connection is formed on the contact frame by at least one spring element, the free end of which forms a clamping edge directed towards the electrical conductor and subjected to a clamping force, and the conductor clamping connection can be opened by the pusher acting on the at least one spring element, in that the pusher exerts a force against the Clamping force is applied to the spring element.
- the ES 2 159 247 A1 shows an electrical terminal with a housing for a pluggable electrical conductor with a spring clamp contact.
- a lever-like pusher is integrally formed on the upper side of the housing.
- a pin is provided on the pusher, which engages in a recess of the housing and in a recess of a contact insert and, when the pusher is actuated, acts on the clamping spring to release the clamping contact.
- the pusher is designed very large and complex overall.
- a comparable version is in the EP 1 182 750 A2 disclosed.
- the object of the invention is to provide an electrical terminal for connecting an electrical conductor, which ensures secure clamping of the electrical conductor and at the same time has a simple structure.
- the pusher consists of a pusher arm, one end of the pusher arm being connected to the insulating material housing and the pusher arm extending at an angle along at least one section of two mutually arranged surfaces of the insulating material extends.
- This design of the pusher enables a relatively long effective pusher arm with a correspondingly long lever arm, which is particularly advantageous in the case of cramped installation space or very small electrical connection terminals with small insulating housings.
- the design of the pusher according to the invention makes it possible in the first place to provide an effective pusher for actuating a contact frame.
- the two surfaces arranged at an angle to one another are arranged at least almost perpendicularly to one another.
- the pusher arm is thus preferably formed from a first pusher arm part, which is adapted to the shape of a rear side of the housing, and a second pusher arm part, which is adapted to the shape of a housing surface. Furthermore, the pusher arm is thus preferably arranged in a recess of the insulating material housing.
- the pusher arm has an actuating surface with a trough-shaped recess, so that an attachment possibility for an actuating tool is created in a simple manner, so that the pusher can be actuated safely.
- the pusher arm is preferably designed to be elastically deformable, so that a simple movement or deflection of the pusher can be ensured with minimal design effort.
- the spring element is designed as at least one leaf spring or a spring leg, so that in the preferred embodiment of the contact frame in the form of a channel and the contact frame to form a conductor clamp connection on each side wall there is a leaf spring in the form of a tongue stamped out of a flat metal part which is bent out of the plane of the flat metal part in such a way that the free end of the leaf spring forms a clamping edge directed towards the electrical conductor.
- the electrical connection terminal is thus formed from only two components, the insulating housing with an integrated push button and a one-piece contact frame, so that a simple structure and simple assembly can be guaranteed at low cost.
- a starting bevel directed towards the outside of the electrical connection terminal is formed on the leaf springs, which are flared towards one another in the shape of a funnel.
- the pusher can be easily pressed between the leaf springs in order to open the terminal connection of the electrical conductor by pushing the leaf springs apart.
- the pusher preferably has a corresponding wedge-shaped pusher surface, which is formed on the end of the pusher arm facing away from the end connected to the insulating material housing.
- the pusher arm In the installed state of the electrical connection terminal, in which the contact frame is in the insulating housing is inserted, the pusher arm is under a preload, so that the pusher arm protrudes over the surface of the housing top. Due to the fact that the pusher arm is subjected to a pretension in the non-actuated state, the tension with which the pusher arm is acted on can be kept small.
- the value of the preload is relatively small because the deflection of the pusher arm in the unactuated state is also relatively small.
- the deflection of the pusher arm in the actuated position into the insulating material housing is also not much greater than in the non-actuated state, so that the stresses to which the pusher arm is subjected can be kept small overall.
- the low voltage values within the pusher or the pusher arm contribute to the fact that the pusher and thus also the insulating housing can be kept small.
- overload protection is provided for this in a preferred embodiment.
- the deflection of the spring element designed as a leaf spring can be limited by side walls and/or intermediate walls of the insulating material housing. It is also advantageous to limit the deflection of the pusher arm of the pusher by the pusher arm resting against at least one spring element designed as a leaf spring.
- the figure 1 shows an electrical connection terminal 1 according to the invention with an insulating material housing 2 in which a metallic contact frame 4 is accommodated.
- the insulating material housing 2 has at least one conductor entry opening 3 on one end face 19 for the insertion of an electrical conductor 5 ( figure 4 ).
- the connection terminal 1 has two poles, each with a conductor entry opening 3 and a contact frame 4 per pole.
- the connection terminal can also have any other desired number of poles.
- connection areas 16 of the contact frame 4 which contact corresponding contact sections 28, for example conductor tracks, of a printed circuit board 7 ( figure 2 ).
- the connection areas 16 are connected to the contact sections 28 in particular via a soldered connection (SMD soldered connection), but a plug-in connection is also conceivable.
- SMD soldered connection soldered connection
- a plug-in connection is also conceivable.
- the contact frame 4 held on the printed circuit board 7 can be seen.
- the illustration does not include the insulating material housing, so that the connection of the electrical conductor 5 to the contact frame 4 can be seen.
- the electrical conductor 5 is inserted through a ring-shaped, at least almost closed channel entrance 8 of the contact frame 4, with the stripped end 6 of the electrical conductor 5 being accommodated between the side walls of the channel-shaped contact frame 4 designed as leaf springs 9.
- the leaf springs 9 are bent out of a flat metal part and their free ends form a clamping edge 10 so that the two opposite clamping edges 10 of the leaf springs 9 form a clamping point for the electrical conductor 5 .
- the area from the channel entrance 8 of the contact frame 4, which adjoins the conductor insertion opening 3, to the terminal point formed by the clamping edges 10 defines a conductor insertion area 30.
- the contact frame 4 has a contact base 11, which is protruded or bent out of the surface of a flat metal part in such a way that it slopes upwards from the channel entrance 8 in the direction of the clamping point, i.e. essentially in the conductor insertion area 30, in the direction of an inserted conductor 5 is executed.
- a first contact area 16 adjoins the contact base 11 at one end at the channel entrance 8 and a second contact area 16 at the other end.
- FIG. 1 front latching hooks 14 formed on the annular channel entrance 8 can be seen, which engage in the corresponding front latching recesses 17 arranged there next to the conductor insertion opening 3 for the latching connection with the insulating material housing 2 .
- rear latching hooks 15 are provided on the contact base 11, which are arranged laterally on the contact base 11 and are preferably spaced apart from the printed circuit board 7 or from the plane formed by the contact areas 16 are and engage in recesses, not shown, of the insulating material housing 2 .
- the leaf spring 9 In the area of the free end of the leaf springs 9, on which the clamping edge 10 is formed, the leaf spring 9 has a starting bevel 12 on its longitudinal side facing away from the contact base 10, which is directed towards the outside of the connecting terminal 1.
- the starting bevels 12 of a contact frame 4 thus together form an upwardly directed, funnel-shaped receptacle facing away from the contact base 10 .
- the figures 4 and 5a and 5b each show a sectional view of the electrical connection terminal 1 composed of a contact frame 4 and an insulating material housing 2 according to the invention, wherein in FIG figure 4 in addition, a connected electrical conductor 5 is shown.
- the housing inner wall 31 has a sloping area within which the housing inner wall 31 is designed to be inclined towards an inserted conductor 5 . This inclined area lies within the conductor entry area 30 defined above or can also extend over the entire conductor entry area 30 .
- the conductor entry area 30 has a funnel-shaped design at least in sections due to the design of the contact frame 4 with its leaf springs 9 and its contact base 10 and the housing inner wall 31 of the insulating material housing 2, it being clear that the funnel-shaped conductor entry area 30 is composed of the contact frame 4 and the insulating housing 2.
- the funnel-shaped conductor entry area 30 is at least almost completely closed on the peripheral side. There are narrow gaps only between the leaf springs 9 and the contact base 10 on the one hand and the leaf springs 9 and the inner wall 31 of the housing on the other hand.
- the cross section of the conductor entry area 30 is essentially rectangular or square, but it can also have any other desired shape, in particular round or at least round or arcuate in sections.
- the funnel-shaped conductor entry area 30 forms a guide for an electrical conductor 5 to be inserted, in particular for its stripped end 6, so that the stripped end can be fed to the terminal point in a targeted manner.
- the electrical connection terminal 1 can also be used for multi-wire electrical conductors 5, in particular when the terminal point formed by the clamping edges 10 is opened by an actuating element which is designed as a pusher 21 before the electrical conductor 5 is inserted.
- the individual wires of the multi-wire conductor 5 cannot deviate due to the conductor entry area 30 which is almost closed on the peripheral side and are held securely by the clamping edge 10 in a clamped manner.
- the end of the funnel-shaped section of the conductor entry area 30 with the larger cross section facing the conductor entry opening 3 can also, if desired, serve as a stop for the insulated section of the electrical conductor 5 .
- the funnel-shaped conductor entry area 30 is composed of the insulating housing 2 and the contact frame 4 or is formed by these two components, simple and effective conductor routing is achieved, with the contact frame 4 in particular being able to be designed very simply, compactly and with a saving in material.
- a pusher 21 can also be seen as an actuating element with a pusher arm 23 which is designed in one piece with the insulating material housing 2 .
- the pusher 21 acts on the starting bevels 12 and, when actuated, pushes these starting bevels 12 apart together with the leaf spring 9, ie when pressed with a force F in the direction of the insulating material housing 2.
- the clamping edges 10 of the leaf spring 9 are also pressed apart and the clamping point is opened for removing an electrical conductor 5 or for inserting an electrical conductor 5 , in particular a multi-wire conductor 5 .
- the pusher arm 23 is as shown in FIG Figure 6a and 6b integrally formed on the insulating material housing 2 in the region of the rear side of the housing 20, preferably in its lower half facing away from the housing top side 18.
- the pusher arm 23 follows the contour of the insulating housing 2 so that a first pusher arm part 24 connected to the rear wall 20 of the housing runs approximately in the plane of the rear side 20 of the housing or approximately parallel thereto.
- the contour of the pusher arm 23 follows the contour of the transition from the rear side 20 of the housing to the top side 18 of the housing, so that a second pusher arm part 25, which is integrally connected to the first pusher arm part 24, runs approximately in the plane of the top side 18 of the housing or approximately parallel thereto.
- the housing back 20 and the housing top 18 are arranged at an angle to one another, preferably the housing back 20 and the housing top 18 are arranged at least almost at right angles to one another.
- the pusher arm 23 is thus formed essentially as an angle.
- An actuating surface 27 is formed on the end of the second pusher arm part 25 facing away from the first pusher arm part. It can thus be seen that the pusher 21 is arranged in a housing recess 22 which extends over the rear side 20 of the housing and the top side 18 of the housing.
- the housing recess 22 is designed essentially as an opening so that the push button 21 can act on the contact frame 4 arranged inside the insulating housing 2 .
- the push button 21 as an actuating element is thus integrated with its angled design in the wall or surface of the insulating material housing 2 and represents a part of the insulating material housing 2 itself.
- the pusher arm 23 or the outer surface is essentially in the plane of the surface contour of the insulating material housing 2, both in the area of the upper side 18 of the housing and in the area of the rear side 20 of the housing.
- the pusher 21 protrudes slightly at least in relation to the top side 18 of the housing, as is shown in Figure 5a is recognizable.
- the starting bevels 12 of the contact frame 4 lie on the pusher 21 or, more precisely, on its pusher surface 26 ( figure 7 ) and deflect the pusher 21 outwards, so that the pusher arm 23 is under elastic pretension.
- the actuated state is shown, in which the pusher 21 is subjected to an actuating force F in the area of the trough-like actuating surface 27 .
- the pusher arm 23 elastically deforms essentially uniformly under the actuating force F, with the area of the pusher 21 with the actuating surfaces 26 entering between the leaf springs 9 .
- the pusher arm 23 has a substantially uniform strength or thickness for uniform elastic deformation.
- the pusher 21 is shifted from the position projecting beyond the housing top 18 into a position in which the pusher arm 23, in particular the second pusher arm part 25, dips into the insulating housing 2.
- the elastic bias of the pusher arm 23 is released and the pusher arm 23 is subjected to a reverse tension, so that the pusher arm tends to move outwards again in order to reach its initial position.
- the Figures 6a and 6b represent the insulating material housing 2 as an individual part, in particular the described design of the pusher 21 and the connection of the pusher arm 23 to the insulating material housing 2 are again clearly recognizable.
- the insulating material housing 2 has recesses 32 on the underside of the housing, into which the contact areas 16 of the contact frame 4 engage, so that these contact areas 16 can protrude beyond the rear side 20 and the front side 19 of the housing with the conductor entry openings 3 (see also figure 1 ).
- the underside of the housing of the assembled electrical connection terminals forms a substantially flat surface without protruding components.
- the insulating material housing 2 can thus reach directly up to the surface of the circuit board 7 or rest on the circuit board 7 when it is arranged on the circuit board 7 .
- the figure 7 again clarifies the mode of action of the pusher 21 on the contact frame 4.
- the pusher surface 26 of the pusher 21 is essentially wedge-shaped and acts on the corresponding slanted run-on bevels 12 of the contact frame 4.
- a force F via the actuating surface 27 slides the wedge-shaped pusher surface 26 over the chamfers 12, dips between the leaf springs 9 and pushes them apart.
- the leaf springs 9 due to their restoring force, press the pusher 21 back into the starting position via the run-on bevels 12 and the corresponding actuating surface 26.
- the illustrated angular design of the pusher 21 enables a relatively long effective pusher arm 23 with a correspondingly long lever arm, which is particularly advantageous in the case of cramped installation space or very small electrical connection terminals with small insulating housings.
- the design of the pusher 21 according to the invention makes it possible in the first place to provide an effective pusher 21 for actuating a contact frame 4 .
- the tension with which the pusher arm 23 is acted upon can be kept small.
- the value of the preload is relatively small, since the deflection of the pusher arm 23 in the unactuated state is also relatively small.
- the deflection of the pusher arm 23 in the actuated position into the insulating material housing 2 is also not much greater than in the unactuated state, so that the stresses to which the pusher arm 23 is subjected will also be able to be kept relatively small.
- the pusher 21 can be kept very small overall and is therefore particularly suitable for very small connecting terminals.
- Overload protection for both the leaf springs 9 and the pusher 21 can also be implemented with the illustrated embodiment of the electrical terminal. How out figure 7 As can be seen, when the leaf springs 9 are sufficiently deflected, the bevels 12 arranged on the leaf springs 9 will strike the side walls 33 of the insulating material housing 2 and/or one or more intermediate walls 34 of the insulating material housing 2 arranged between the poles of the connection terminal 1. The side walls 33 and/or intermediate walls 34 thus limit a deflection of the leaf springs 9 and thus prevent them from being overloaded and thus not being able to deform plastically or break.
- overload protection for the pusher 21 or the pusher arm can also be implemented. Due to the limited deflection of the leaf springs 9, only a limited space can arise between two mutually associated leaf springs. If the maximum width of the section of the pusher arm 23, which enters between the leaf springs 9, is greater than the space between the maximally deflected leaf springs 9, the pusher arm 23 can only be deflected to a limited extent, so that it cannot be subjected to excessive stress and breakage of the pusher arm 23 is effectively avoided.
- Overload protection for the pusher 21 or its pusher arm 23 can also be achieved by providing a stop on the section of the pusher arm 23 that dips between the leaf springs 9, which stops at a maximum deflection of the pusher arm or at a maximum immersion depth on the leaf springs 9 or rests on the ramps 12, so that further deflection of the pusher arm is prevented and damage to the pusher 21 is avoided.
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Push-Button Switches (AREA)
Description
Die Erfindung betrifft eine elektrische Anschlussklemme mit einer Betätigungseinrichtung, wobei die elektrische Anschlussklemme einen in einem Isolierstoffgehäuse angeordneten Kontaktrahmen mit einem Leiterklemmanschluss für einen elektrischen Leiter umfasst und die Betätigungseinrichtung ein als Drücker ausgebildetes Betätigungselement umfasst, welches einstückig mit dem Isolierstoffgehäuse verbunden ist, und wobei der Leiterklemmanschluss am Kontaktrahmen durch mindestens ein Federelement gebildet wird, dessen freies Ende eine gegen den elektrischen Leiter gerichtete und mit einer Klemmkraft beaufschlagten Klemmkante bildet und der Leiterklemmanschluss durch ein Einwirken des Drückers auf das mindestens eine Federelement geöffnet werden kann, indem durch den Drücker eine Kraft entgegen der Klemmkraft auf das Federelement aufgebracht wird.The invention relates to an electrical connection terminal with an actuating device, the electrical connection terminal comprising a contact frame arranged in an insulating material housing and having a conductor clamping connection for an electrical conductor, and the actuating device comprising an actuating element designed as a pusher which is integrally connected to the insulating material housing, and the conductor clamping connection is formed on the contact frame by at least one spring element, the free end of which forms a clamping edge directed towards the electrical conductor and subjected to a clamping force, and the conductor clamping connection can be opened by the pusher acting on the at least one spring element, in that the pusher exerts a force against the Clamping force is applied to the spring element.
Die
Aufgabe der Erfindung ist es, eine elektrische Anschlussklemme für den Anschluss eines elektrischen Leiters bereitzustellen, welche eine sichere Klemmung des elektrischen Leiters gewährleistet und gleichzeitig einen einfachen Aufbau aufweist.The object of the invention is to provide an electrical terminal for connecting an electrical conductor, which ensures secure clamping of the electrical conductor and at the same time has a simple structure.
Gelöst wird die Aufgabe erfindungsgemäß durch die Merkmale des Anspruchs 1. Es ist vorgesehen, dass der Drücker aus einem Drückerarm besteht, wobei der Drückerarm mit seinem einem Ende an das Isolierstoffgehäuse angebunden ist und wobei sich der Drückerarm entlang mindestens eines Teilabschnitts von zwei in einem Winkel zueinander angeordneten Oberflächen des Isolierstoffgehäuses erstreckt.The object is achieved according to the invention by the features of
Diese Ausbildung des Drückers ermöglicht einen verhältnismäßig langen wirksamen Drückerarm mit einem dementsprechend langen Hebelarm, was insbesondere bei beengten Bauraumverhältnissen oder sehr kleinen elektrischen Anschlussklemmen mit kleinen Isolierstoffgehäusen von Vorteil ist. So wird es insbesondere bei miniaturisierten Anschlussklemmen durch die erfindungsgemäße Ausbildung des Drückers überhaupt erst ermöglicht, einen wirksamen Drücker für die Betätigung eines Kontaktrahmens vorzusehen.This design of the pusher enables a relatively long effective pusher arm with a correspondingly long lever arm, which is particularly advantageous in the case of cramped installation space or very small electrical connection terminals with small insulating housings. In particular in the case of miniaturized connection terminals, the design of the pusher according to the invention makes it possible in the first place to provide an effective pusher for actuating a contact frame.
In einer bevorzugten Ausführungsform sind die beiden in einem Winkel zueinander angeordneten Oberflächen zumindest nahezu senkrecht zueinander angeordnet sind. Somit ist der Drückerarm bevorzugt aus einem ersten, dem Verlauf einer Gehäuserückseite angepassten Drückerarmteil und einem zweiten, den Verlauf einer Gehäuseoberfläche angepassten Drückerarmteil gebildet. Des Weiteren ist der Drückerarm damit bevorzugt in einer Ausnehmung des Isolierstoffgehäuses angeordnet.In a preferred embodiment, the two surfaces arranged at an angle to one another are arranged at least almost perpendicularly to one another. The pusher arm is thus preferably formed from a first pusher arm part, which is adapted to the shape of a rear side of the housing, and a second pusher arm part, which is adapted to the shape of a housing surface. Furthermore, the pusher arm is thus preferably arranged in a recess of the insulating material housing.
In einer besonders vorteilhaften Ausführungsform weist der Drückerarm eine Betätigungsfläche mit einer muldenförmigen Ausnehmung auf, so dass auf einfache Weise eine Ansetzmöglichkeit für ein Betätigungswerkzeug geschaffen ist, so dass der Drücker sicher betätigt werden kann.In a particularly advantageous embodiment, the pusher arm has an actuating surface with a trough-shaped recess, so that an attachment possibility for an actuating tool is created in a simple manner, so that the pusher can be actuated safely.
Bevorzugt ist der Drückerarm elastisch verformbar gestaltet, so dass eine einfache Bewegung bzw. Auslenkung des Drückers bei minimalem konstruktivem Aufwand gewährleistet werden kann.The pusher arm is preferably designed to be elastically deformable, so that a simple movement or deflection of the pusher can be ensured with minimal design effort.
In einer bevorzugten Ausführungsform ist das Federelement als zumindest eine Blattfeder oder ein Federschenkel ausgebildet, so dass in der bevorzugten Ausbildung des Kontaktrahmens in Art eines Kanals und der Kontaktrahmen zur Bildung eines Leiterklemmanschlusses an jeder Seitenwand jeweils eine Blattfeder in Art einer aus einem flachen Metallteil ausgestanzten Zunge aufweist, welche aus der Ebene des flachen Metallteil herausgebogen ist, derart, dass das freie Ende der Blattfeder eine gegen den elektrischen Leiter gerichtete Klemmkante bildet. Somit wird die elektrische Anschlussklemme aus lediglich zwei Bauteilen, dem Isolierstoffgehäuse mit integriertem Drücker sowie einem einteiligen Kontaktrahmen gebildet, so dass ein einfacher Aufbau und eine einfache Montage mit niedrigen Kosten gewährleistet werden kann.In a preferred embodiment, the spring element is designed as at least one leaf spring or a spring leg, so that in the preferred embodiment of the contact frame in the form of a channel and the contact frame to form a conductor clamp connection on each side wall there is a leaf spring in the form of a tongue stamped out of a flat metal part which is bent out of the plane of the flat metal part in such a way that the free end of the leaf spring forms a clamping edge directed towards the electrical conductor. The electrical connection terminal is thus formed from only two components, the insulating housing with an integrated push button and a one-piece contact frame, so that a simple structure and simple assembly can be guaranteed at low cost.
Bevorzugt ist an den Blattfedern jeweils eine zur Außenseite der elektrischen Anschlussklemme gerichtete Anlaufschräge angeformt, welche zueinander trichterförmig ausgestellt sind. Somit kann der Drücker auf einfache Weise zwischen die Blattfedern eingedrückt werden, um den Klemmanschluss des elektrischen Leiters durch Auseinanderdrücken der Blattfedern zu öffnen. Hierzu weist der Drücker bevorzugt eine korrespondierende keilförmige Drückerfläche auf, welche an dem am Isolierstoffgehäuse angebunden Ende abgewandte Ende des Drückerarms ausgebildet ist.Preferably, a starting bevel directed towards the outside of the electrical connection terminal is formed on the leaf springs, which are flared towards one another in the shape of a funnel. Thus, the pusher can be easily pressed between the leaf springs in order to open the terminal connection of the electrical conductor by pushing the leaf springs apart. For this purpose, the pusher preferably has a corresponding wedge-shaped pusher surface, which is formed on the end of the pusher arm facing away from the end connected to the insulating material housing.
Im montierten Zustand der elektrischen Anschlussklemme, in dem der Kontaktrahmen in dem Isolierstoffgehäuse eingesetzt ist, steht der Drückerarm unter einer Vorspannung, so dass der Drückerarm über die Oberfläche der Gehäuseoberseite hervorsteht. Dadurch, dass der Drückerarm im unbetätigten Zustand einer Vorspannung unterworfen ist, kann die Spannung, mit welcher der Drückerarm beaufschlagt wird, klein gehalten werden. Der Wert der Vorspannung ist relativ klein, da die Auslenkung des Drückerarms im unbetätigten Zustand auch relativ klein ist. Die Auslenkung des Drückerarms in der betätigten Stellung in das Isolierstoffgehäuse hinein ist auch nicht Wesentlich viel größer als im unbetätigten Zustand, so dass die Spannungen, welcher der Drückerarm unterworfen wird, insgesamt klein gehalten werden können. Die niedrig gehaltenen Spannungswerte innerhalb des Drückers bzw. der Drückerarms tragen dazu bei, dass der Drücker und damit auch das Isolierstoffgehäuse klein gehalten werden kann.In the installed state of the electrical connection terminal, in which the contact frame is in the insulating housing is inserted, the pusher arm is under a preload, so that the pusher arm protrudes over the surface of the housing top. Due to the fact that the pusher arm is subjected to a pretension in the non-actuated state, the tension with which the pusher arm is acted on can be kept small. The value of the preload is relatively small because the deflection of the pusher arm in the unactuated state is also relatively small. The deflection of the pusher arm in the actuated position into the insulating material housing is also not much greater than in the non-actuated state, so that the stresses to which the pusher arm is subjected can be kept small overall. The low voltage values within the pusher or the pusher arm contribute to the fact that the pusher and thus also the insulating housing can be kept small.
Um eine Beschädigung, insbesondere ein Brechen, des zumindest einen Federelements und/oder des Drückers wirksam zu vermeiden ist in einer bevorzugten Ausführungsform ein Überlastschutz hierfür vorgesehen. Vorteilhafterweise ist dabei die Auslenkung des als Blattfederfeder ausgebildeten Federelements durch Seitenwände und/oder Zwischenwände des Isolierstoffgehäuses begrenzbar. Weiterhin vorteilhaft ist die Begrenzung der Auslenkung des Drückerarms des Drückers durch eine Anlage des Drückerarms an zumindest einem als Blattfeder ausgebildetem Federelement. Diese Ausbildungsformen ermöglichen einen Überlastschutz ohne wesentliche Anpassungen der elektrischen Anschlussklemme und sind daher kostengünstig.In order to effectively avoid damage, in particular breaking, of the at least one spring element and/or the pusher, overload protection is provided for this in a preferred embodiment. Advantageously, the deflection of the spring element designed as a leaf spring can be limited by side walls and/or intermediate walls of the insulating material housing. It is also advantageous to limit the deflection of the pusher arm of the pusher by the pusher arm resting against at least one spring element designed as a leaf spring. These forms of construction enable overload protection without significant adjustments to the electrical connection terminal and are therefore inexpensive.
Nachfolgend wird die Erfindung anhand eines in den Figuren dargestellten Ausführungsbeispieles näher erläutert. Es zeigen
- Fig.1:
- eine erfindungsgemäße Anschlussklemme im Zusammenbau in perspektivischer Darstellung,
- Fig.2:
- eine erfindungsgemäße auf deiner Leiterplatte angeordnete Anschlussklemme mit eingestecktem Leiter ohne Isolierstoffgehäuse,
- Fig.3 :
- eine perspektivische Ansicht des Kontaktrahmens,
- Fig. 4:
- eine perspektivische Schnittdarstellung der erfindungsgemäßen auf einer Leiterplatte angeordneten Anschlussklemme mit eingestecktem elektrischem Leiter,
- Fig. 5a:
- eine Schnittdarstellung der erfindungsgemäßen Anschlussklemme entsprechend des Schnittes IV-
IV aus Figur 1 mit unbetätigtem Drücker, - Fig. 5b:
- eine Schnittdarstellung der erfindungsgemäßen Anschlussklemme entsprechend des Schnittes IV-
IV aus Figur 1 mit betätigtem Drücker, - Fig. 6a:
- eine erste perspektivische Ansicht des Isolierstoffgehäuses,
- Fig. 6b:
- eine zweite perspektivische Ansicht des Isolierstoffgehäuses,
- Fig. 7:
- eine Schnittdarstellung der erfindungsgemäßen Anschlussklemme entsprechend des Schnittes VII-VII aus Figur a.
- Fig.1:
- a terminal according to the invention in assembly in a perspective view,
- Fig.2:
- a connection terminal according to the invention arranged on your printed circuit board with an inserted conductor without an insulating material housing,
- Fig.3 :
- a perspective view of the contact frame,
- Figure 4:
- a perspective sectional view of the connection terminal according to the invention arranged on a printed circuit board with an inserted electrical conductor,
- Figure 5a:
- a sectional view of the terminal according to the invention corresponding to section IV-IV
figure 1 with unactuated pusher, - Figure 5b:
- a sectional view of the terminal according to the invention corresponding to section IV-IV
figure 1 with actuated pusher, - Figure 6a:
- a first perspective view of the insulating housing,
- Figure 6b:
- a second perspective view of the insulating housing,
- Figure 7:
- a sectional view of the terminal according to the invention corresponding to the section VII-VII from Figure a.
Die
Erkennbar sind in der
Der Aufbau des Kontaktrahmens 4 ist in der Figur 3 deutlich sichtbar, wobei erkennbar ist, dass zur Bildung der Klemmkante 10 am freien Ende der Blattfeder 9 eine zusätzliche, gegen den elektrischen Leiter 5 gerichtete Ausstellung 12 angeprägt bzw. angeformt ist, um die Klemmwirkung zu verbessern. Ferner weist der Kontaktrahmen 4 einen Kontaktboden 11 auf, welcher derart aus der Fläche eines ebenen Metallteils herausgestellt bzw. heraus gebogen ist, dass dieser vom Kanaleingang 8 in Richtung der Klemmstelle, also im Wesentlichen im Leitereinführbereich 30, ansteigend in Richtung eines eingesteckten Leiters 5 geneigt ausgeführt ist. An den Kontaktboden 11 schließt sich einenends am Kanaleingang 8 ein erster Kontaktbereich 16 an und anderenends ein zweiter Kontaktbereich 16 an. Zudem sind in
Im Bereich des freien Endes der Blattfedern 9, an welchem jeweils die Klemmkante 10 ausgebildet ist, weist die Blattfeder 9 jeweils an ihrer dem Kontaktboden 10 abgewandten Längsseite eine Anlaufschräge 12 auf, welche jeweils zur Außenseite der Anschlussklemme 1 gerichtet ist. Die Anlaufschrägen 12 eines Kontaktrahmens 4 bilden somit zusammen eine nach oben gerichtete, vom Kontaktboden 10 abgewandte trichterförmige Aufnahme.In the area of the free end of the
Die
Es ist in diesen Darstellungen ferner erkennbar, dass der Leitereinführungsbereich 30 auf Grund der Gestaltung des Kontaktrahmens 4 mit seinen Blattfedern 9 und seinem Kontaktboden 10 sowie der Gehäuseinnenwandung 31 des Isolierstoffgehäuses 2 eine zumindest abschnittsweise trichterförmige Ausbildung aufweist, wobei deutlich wird, dass der trichterförmige Leitereinführungsbereich 30 aus dem Kontaktrahmen 4 und dem Isolierstoffgehäuse 2 zusammengesetzt ist. Der trichterförmige Leitereinführungsbereich 30 ist dabei umfangsseitig zumindest nahezu vollständig geschlossen. Lediglich zwischen den Blattfedern 9 und dem Kontaktboden 10 einerseits und den Blattfedern 9 und der Gehäuseinnenwandung 31 andererseits sind schmale Spalte vorhanden. Der Querschnitt des Leitereinführungsbereiches 30 ist im Ausführungsbeispiel im Wesentlichen rechteckig bzw. quadratisch ausgeführt, kann allerdings auch jede beliebige andere Form aufweisen, insbesondere rund oder zumindest abschnittsweise rund oder bogenförmig.It can also be seen in these illustrations that the
Der trichterförmige Leitereinführungsbereich 30 bildet dabei für einen einzusteckenden elektrischen Leiter 5, insbesondere für dessen abisoliertes Ende 6, eine Führung, so dass das abisolierte Ende zielgerichtet der Klemmstelle zugeführt werden kann. Die elektrische Anschlussklemme 1 ist auch für mehrdrähtige elektrische Leiter 5 verwendbar, insbesondere dann, wenn die durch die Klemmkanten 10 gebildete Klemmstelle durch ein Betätigungselement, welches als ein Drücker 21 ausgebildet ist, vor dem Einstecken des elektrischen Leiters 5 geöffnet wird. Die einzelnen Drähte des mehrdrähtigen Leiters 5 können auf Grund des umfangsseitig nahezu geschlossen Leitereinführungsbereiches 30 nicht ausweichen und werden sicher von der Klemmkante 10 klemmend gehalten. Das der Leitereinführungsöffnung 3 zugewande Ende des trichterförmigen Abschnitts des Leitereinführungsbereichs 30 mit dem größeren Querschnitt kann dabei auch, wenn erwünscht, als ein Anschlag für das den isolierten Abschnitt des elektrischen Leiters 5 dienen.The funnel-shaped
Dadurch, dass der trichterförmige Leitereinführungsbereich 30 zusammengesetzt ist aus dem Isolierstoffgehäuse 2 und dem Kontaktrahmen 4 bzw. von diesen beiden Baueilen gebildet wird, wird eine einfache und wirkungsvolle Leiterführung erzielt, wobei insbesondere der Kontaktrahmen 4 sehr einfach, kompakt und materialsparend ausgeführt werden kann.Because the funnel-shaped
In den
Der Drückerarm 23 ist entsprechend der Darstellung nach
Im nicht montierten Zustand befindet sich der Drückerarm 23 bzw. des äußere Oberfläche im Wesentlichen in der Ebene der Oberflächenkontur des Isolierstoffgehäuses 2, sowohl im Bereich der Gehäuseoberseite 18 als auch im Bereich der Gehäuserückseite 20. Im montierten mit dem im Isolierstoffgehäuse 2 eingesetzten Kontaktrahmen 4 und nicht betätigten Zustand steht der Drücker 21 dagegen zumindest gegenüber der Gehäuseoberseite 18 etwas heraus, wie dies in
Die
Die
Die dargestellte winkelförmige Ausbildung des Drückers 21 ermöglicht einen verhältnismäßig langen wirksamen Drückerarm 23 mit einem dementsprechend langen Hebelarm, was insbesondere bei beengten Bauraumverhältnissen oder sehr kleinen elektrischen Anschlussklemmen mit kleinen Isolierstoffgehäusen von Vorteil ist. So wird es insbesondere bei miniaturisierten Anschlussklemmen durch die erfindungsgemäße Ausbildung des Drückers 21 überhaupt erst ermöglicht, einen wirksamen Drücker 21 für die Betätigung eines Kontaktrahmens 4 vorzusehen.The illustrated angular design of the
Dadurch, dass der Drückerarm 23 im unbetätigten Zustand einer Vorspannung unterworfen ist, kann die Spannung, mit welcher der Drückerarm 23 beaufschlagt wird, klein gehalten werden. Der Wert der Vorspannung ist relativ klein, da die Auslenkung des Drückerarms 23 im unbetätigten Zustand auch relativ klein ist. Die Auslenkung des Drückerarms 23 in der betätigten Stellung in das Isolierstoffgehäuse 2 hinein ist auch nicht Wesentlich viel größer als im unbetätigten Zustand, so dass die Spannungen, welcher der Drückerarm 23 unterworfen wird, auch verhältnismäßig klein gehalten werden können. Würde dagegen der gesamte Betätigungsweg auf einen spannungslosen Drückerarm 23 aufgegeben werden, wäre die auf den Drückerarm 23 wirkende Spannung wesentlich größer, so dass auch der Drückerarm 23 insgesamt größer dimensioniert werden müsste. Man erkennt also, dass mit der vorliegenden Anordnung des Drückers 21 innerhalb der Anschlussklemme 1 und dessen Zusammenwirken mit dem Kontaktrahmen 4, der Drücker 21 insgesamt sehr klein gehalten werden kann und damit insbesondere für sehr klein bauende Anschlussklemmen geeignet ist.Due to the fact that the
Mit der dargestellten Ausführung der elektrischen Klemme kann auch ein Überlastschutz sowohl für die Blattfedern 9 als auch für den Drücker 21 realisiert werden. Wie aus
Gleichzeitig kann aber auch ein Überlastschutz für den Drücker 21 bzw. dem Drückerarm realisiert werden. Durch die begrenzte Auslenkung der Blattfedern 9 kann zwischen zwei zueinander zugeordneten Blattfedern lediglich ein begrenzter Zwischenraum entstehen. Sofern die maximale Breite des Abschnitts des Drückerarms 23, welcher zwischen die Blattfedern 9 eintaucht größer ist als der Zwischenraum zwischen den maximal ausgelenkten Blattfedern 9, kann der Drückerarm 23 nur begrenzt ausgelenkt werden, so dass dieser auch keiner übermäßigen Belastung unterworfen werden kann und ein Brechen des Drückerarms 23 wirksam vermieden wird.At the same time, however, overload protection for the
Ein Überlastschutz für den Drücker 21 bzw. dessen Drückerarm 23 kann auch dadurch erreicht werden, dass an dem zwischen die Blattfedern 9 eintauchenden Abschnitt des Drückerarms 23 ein Anschlag vorgesehen wird, der bei einer maximalen Auslenkung des Drückerarms bzw. bei einer maximalen Eintauchtiefe auf den Blattfedern 9 oder auf den Anlaufschrägen 12 aufliegt, so dass eine weitere Auslenkung des Drückerarms verhindert wird und eine Beschädigung des Drückers 21 vermieden wird.Overload protection for the
- 11
- Anschlussklemmeterminal block
- 22
- Isolierstoffgehäuseinsulating housing
- 33
- Leitereinführungsöffnungconductor entry hole
- 44
- Kontaktrahmencontact frame
- 55
- elektrischer Leiterelectrical conductor
- 66
- abisoliertes Ende des elektrischen Leitersstripped end of the electrical conductor
- 77
- Leiterplattecircuit board
- 88th
- Kanaleingangcanal entrance
- 99
- Blattfedernleaf springs
- 1010
- Klemmkanteclamping edge
- 1111
- Kontaktbodencontact ground
- 1212
- Anlaufschrägeleading edge
- 1313
- Ausstellung des freien Endes der BlattfederExhibition of the free end of the leaf spring
- 1414
- vorderer Rasthakenfront latch hook
- 1515
- hinterer Rasthakenrear latch hook
- 1616
- Kontaktbereichecontact areas
- 1717
- vordere Rastausnehmungfront notch
- 1818
- Gehäuseoberseitecase top
- 1919
- Stirnseiteface
- 2020
- Gehäuserückseitecase back
- 2121
- Drückerpusher
- 2222
- Gehäuseausnehmunghousing recess
- 2323
- Drückerarmpusher arm
- 2424
- erstes Drückerarmteilfirst pusher arm part
- 2525
- zweites Drückerarmteilsecond pusher arm part
- 2626
- Drückerflächepusher surface
- 2727
- Betätigungsflächeoperating surface
- 2828
- Leiterbahn, Kontaktabschnittconductor track, contact section
- 3030
- Leitereinführbereichconductor entry area
- 3131
- Gehäuseinnenwandunghousing inner wall
- 3232
- Ausnehmungrecess
- 3333
- SeitenwandSide wall
- 3434
- Zwischenwandpartition
Claims (15)
- Electrical connection terminal (1) comprising an actuating device, wherein- the electrical connection terminal (1) comprises a contact frame (4), arranged in a housing (2) made of insulating material, with a conductor terminal connection for an electrical conductor (5), and- the actuating device comprises an actuating element in the form of a pusher (21) comprising a pusher arm (23), said actuating element being integrally connected to the housing (2) made of insulating material, and wherein- the conductor terminal connection is formed on the contact frame (4) by at least one spring element (9), the free end of which forms a clamping edge (10) which is directed toward the electrical conductor (5) and to which a clamping force is applied, and- the conductor terminal connection can be opened by action of the pusher (21) on the at least one spring element (9) by a force being applied to the spring element (9) by the pusher (21) counter to the clamping force,characterized in that a stop being provided on that portion of the pusher arm (23), which dips between the leaf springs of the spring element (9), said stop resting against the leaf springs or the lead-in-sloping faces (12) of the leaf springs at a maximum dipping depth, that the pusher (21) consists of a pusher arm (23), wherein the pusher arm (23) is connected with one of its ends to the housing (2) made of insulating material, and the pusher arm (23) extends along at least a partial section of two upper surfaces (18, 20) of the housing (2) made of insulating material which are arranged at angle to each other.
- Electrical connection terminal (1) according to claim 1, characterized in, that the pusher arm (23) has an actuating surface (27).
- Electrical connection terminal (1) according to claim 2, characterized in, that the pusher arm (23) has an actuating portion which is remote from the end connected to the housing (2) made from insulating material and which has an essentially wedge-shaped pusher surface (27), wherein the wedge-shaped pusher surface (27) can be pushed in between the leaf springs (9) by the lead-in sloping faces (12) flared out relative to each other in a funnel shape in order to open the terminal connection of the electrical conductor (5) by the leaf springs (9) being pushed apart.
- Electrical connection terminal (1) according to one of claims 2 to 3, characterized in, that the actuating surface (27) has a trough-like, slit-shaped or cross-slit-shaped recess.
- Electrical connection terminal (1) according to one of the preceding claims, characterized in, that a further deflection of the pusher arm (23) is prevented and damage to the pusher (21) avoided when said stop of the pusher arm (23) is resting on the leaf springs or on the lead-in-sloping faces (12).
- Electrical connection terminal (1) according to one of the preceding claims, characterized in, that the contact frame (4) comprises a contact base (11), wherein the leaf spring having the lead-in-sloping faces (12) in each case on its longitudinal side remote from the contact base (11).
- Electrical connection terminal (1) according to the preceding claim, characterized in, that the lead-in-sloping face (12) is in each case directed toward the outside of the connection terminal (1), wherein the lead-in-sloping faces (12) are flared out relative to each other in a funnel shape.
- Electrical connection terminal (1) according to one of the preceding claims, characterized in, that the pusher arm (23) is arranged inside a recess (22) of the housing (2) made of insulating material.
- Electrical connection terminal (1) according to one of the preceding claims, characterized in that the pusher arm (23) can be deformed resiliently.
- Electrical connection terminal (1) according to one of the preceding claims, characterized in, that the contact frame (4) is designed in the manner of a channel and wherein the contact frame (4) has on each side wall, in order to form a conductor terminal connection, in each case, at least one leaf spring (9), in the manner of a tongue stand from a flat material, which is band out of the plane of the flat material, in such a way that the free end of the leaf spring (9) forms a clamping edge (10) directed toward the electrical conductor (5).
- Electrical connection terminal (1) according to claim 7, characterized in that the pusher arm (23) has an actuating portion which is remote from the end connected to the housing (2) made from insulating material and which has an essentially wedge-shaped pusher surface (26), wherein the wedge-shaped pusher surface (26) can be pushed in between the leaf springs (9) by the lead-in-sloping faces (12) flared out relative to each other in a funnel shape in order to open the terminal connection of the electrical conductor (5) by the leaf springs (9) being pushed apart.
- Electrical connection terminal (1) according to one of the preceding claims, characterized in, that in the mounted state of the housing made from an insulating material and the contact frame (2), the pusher arm (23) is subject to pretensioning.
- Electrical connection terminal (1) according to one of the preceding claims, characterized in, that an overload protection is provided for the at least one spring element (9) and/or the pusher (21).
- Electrical connection terminal (1) according to claim 13, characterized in that the deflection of the spring element in the form of the leaf spring can be limited by side walls (33) and/or partition walls of the housing (2) made of insulating material.
- Electrical connection terminal (1) according to claim 13 or 14, characterized in that the deflection of the pusher arm (23) can be limited by the pusher arm (23) bearing against at least one spring element in the form a leaf spring (9).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010014143.7A DE102010014143B4 (en) | 2010-04-07 | 2010-04-07 | Actuation device for an electrical connection terminal |
EP11001933.8A EP2375503B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11001933.8A Division EP2375503B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
EP11001933.8A Division-Into EP2375503B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
Publications (4)
Publication Number | Publication Date |
---|---|
EP2846408A2 EP2846408A2 (en) | 2015-03-11 |
EP2846408A3 EP2846408A3 (en) | 2015-03-18 |
EP2846408B1 EP2846408B1 (en) | 2016-04-27 |
EP2846408B2 true EP2846408B2 (en) | 2022-04-06 |
Family
ID=44201127
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16197947.1A Active EP3151338B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
EP14190509.1A Active EP2846408B2 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
EP15174437.2A Active EP2953208B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
EP16197946.3A Active EP3159974B2 (en) | 2010-04-07 | 2011-03-09 | Electric connecting terminal |
EP11001933.8A Active EP2375503B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16197947.1A Active EP3151338B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15174437.2A Active EP2953208B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
EP16197946.3A Active EP3159974B2 (en) | 2010-04-07 | 2011-03-09 | Electric connecting terminal |
EP11001933.8A Active EP2375503B1 (en) | 2010-04-07 | 2011-03-09 | Actuation device for an electric connection terminal |
Country Status (10)
Country | Link |
---|---|
US (1) | US8328586B2 (en) |
EP (5) | EP3151338B1 (en) |
JP (1) | JP5767499B2 (en) |
KR (1) | KR101368118B1 (en) |
CN (3) | CN102237608B (en) |
DE (4) | DE102010014143B4 (en) |
ES (3) | ES2583411T3 (en) |
PL (5) | PL2375503T3 (en) |
TR (1) | TR201910911T4 (en) |
TW (5) | TWI604675B (en) |
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