EP4066320A1 - Borne à ressorts de conducteur - Google Patents

Borne à ressorts de conducteur

Info

Publication number
EP4066320A1
EP4066320A1 EP20816149.7A EP20816149A EP4066320A1 EP 4066320 A1 EP4066320 A1 EP 4066320A1 EP 20816149 A EP20816149 A EP 20816149A EP 4066320 A1 EP4066320 A1 EP 4066320A1
Authority
EP
European Patent Office
Prior art keywords
spring
leg
clamping
loaded terminal
pivoting
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
Application number
EP20816149.7A
Other languages
German (de)
English (en)
Inventor
Stephan Fehling
Walter Hanning
Michael Herrmann
Heike Schmidtpott
Andreas Rutz
Michael Lenschen
Karlo Stjepanovic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP4066320A1 publication Critical patent/EP4066320A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4811—Spring details
    • H01R4/4814—Self-latching arrangements
    • 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
    • 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
    • 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
    • H01R4/4833—Sliding arrangements, e.g. sliding button
    • 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

Definitions

  • the present invention relates to a spring-loaded terminal with a busbar, which is provided for contacting an electrical conductor, in particular a stranded conductor, and with a spring which is provided for fixing the electrical conductor in the Fe derkraftklemme.
  • Such spring-loaded terminals in an embodiment as direct plug-in terminals (push-in) with a compression spring which presses the conductor against the busbar are known in various embodiments.
  • EP 2 768 079 A1 also discloses a spring-loaded terminal in which a multi-part clamping spring is latched at a free end of a spring leg of the clamping spring.
  • This spring-loaded terminal has proven itself well in practice, but here too the relatively high wear of the clamping edge of the clamping spring, which occurs when the spring-loaded terminal is wired, is disadvantageous.
  • a spring clamp for connecting a conductor in particular for connecting a stranded conductor, is created which has a busbar for con tacting an electrical conductor and a clamping spring acting as a compression spring to fix the electrical conductor in the spring clamp, and a retaining spring for locking the clamping spring in an open position, so that the conductor can be inserted into a contact area in a sliding direction.
  • the clamping spring has a pivoting leg pivotable about a first pivot axis in a pivoting direction with a clamping edge and the retaining spring egg nen pivoting leg pivotable about a second pivot axis, the pivoting leg having at least one holding means - for holding the clamping leg in the open position.
  • the clamping spring and the retaining spring can be designed in one piece with one another, which is particularly cost-effective, but can also be manufactured separately and then connected to one another, the spacing of the latching from the clamping edge having an advantageous effect in each case.
  • the pivot leg has the at least one holding means as the first latching means and the clamping leg has a (counter) latching means which interacts with the holding means of the pivoting leg in the latching state R of the clamping leg in order to hold the clamping leg in the open position, the Clamping leg from a latching state R, in which it is locked by the holding means of the pivoting leg with this and is held in the open position or Lei terein 1500 here, can be adjusted by moving the electrical conductor in a clamping state K, in which the clamping leg is released from the holding means and unlatched and presses the electrical conductor with the clamping edge of the clamping leg against the busbar, so that the conductor contacts the busbar.
  • a clamping state K in which the clamping leg is released from the holding means and unlatched and presses the electrical conductor with the clamping edge of the clamping leg against the busbar, so that the conductor contacts the busbar.
  • the counter-locking means of the clamping leg is also formed at a distance from the clamping edge of the clamping leg.
  • a spring-loaded terminal is thus created which separates the locking mechanism of the clamping spring in an advantageous functional separation from the clamping edge for pressing the conductor against a busbar and advantageously reduces the wear of the clamping edge of the clamping spring through this functional separation.
  • the holding means of the pivot leg is not locked directly on the clamping edge of the clamping leg. In this way, the holding means cannot rub against the clamping edge when it is released from the clamping edge. In this way, the clamping edge is protected in a simple manner from excessive wear caused by a wiring process.
  • this can be implemented, for example, in that the locking means of the clamping leg is formed on the clamping leg at a distance of more than 1 mm, in particular more than 3 mm, from the clamping edge of the clamping leg.
  • the spring-loaded terminal also comprises a restoring means for pivoting the clamping leg back, with which the clamping leg can be pivoted back from the clamping state into the latching state R by moving the restoring means against the pivoting direction,
  • the clamping spring can be designed in one piece with the retaining spring. This results in a simple assembly process of the clamping spring and an inexpensive Her position of the clamping spring.
  • the spring-loaded terminal has a separately manufactured retaining spring in addition to the clamping spring, but the clamping spring and the retaining spring can be connected to one another by a connection.
  • the clamping spring can have a support leg with which it is supported on a corresponding abutment.
  • the abutment can be an abutment leg of the busbar. However, it can also be provided that the abutment is the terminal housing.
  • the retaining spring can have a pressure surface which can be arranged transversely to the sliding direction or conductor insertion direction creates a simple and effective and therefore advantageous possibility for unlatching the clamping spring through the conductor end.
  • the holding means is integrally formed on the pivot leg. This results in a simple structural implementation of the holding means on the swivel arm.
  • the pivot leg can be designed angularly.
  • the pressure surface is connected to a first leg of the pivot leg, which is bent downward in relation to the conductor insertion direction and an upper bend of the clamping spring.
  • the connection device is further designed to be structurally simple.
  • the clamping leg forms a kind of angular shape, since this increases the design options in terms of geometry.
  • the holding means of the pivot leg - that is, the first latching means - is formed in a variant by a latching edge arranged at the end of a second, upwardly curved leg of the angular pivot leg. This results in a simple structural implementation of the Garmit means on the pivot leg.
  • the holding means of the pivoting leg can also be designed as at least one flared tab of the pivoting leg.
  • the holding means of the pivoting leg can be designed as at least one hook or at least one web and be formed in one piece with the pivoting leg.
  • the hook can in turn be issued from the pivoting leg, preferably essentially against the direction of conductor insertion or “upwards”. This in turn results in an advantageously simple structural design of the holding means.
  • Several hooks can also be provided, in particular two of the hooks.
  • the rigidity of the pivoting leg of the retaining spring is advantageously increased in a simple constructive manner.
  • the pivoting leg of the retaining spring can have an opening in the area of the second, upwardly curved leg of the bend and the first downwardly curved leg (that is, in the conductor insertion direction), into which the clamping leg is inserted Latched state R of the clamping leg engages.
  • the opening in the area of the holding means and the bend of the pivoting leg of the holding spring has a narrowing.
  • a latching means on the clamping leg of the clamping spring can be made simple in front of part.
  • the clamping leg has a waist geometrically corresponding to the constriction, so that the clamping leg can, for example, move freely through the opening of the pivoting leg. This results in an advantageously space-saving construction of the retaining spring.
  • the locking means of the clamping leg can be integrally formed on the clamping leg or be formed with the SEM. This results in a simple structural implementation of the locking means on the clamping leg.
  • Rastmit tel can for example be designed as a section of a hole or a recess, as a web or hook.
  • the locking means of the clamping leg is designed as a La cal, which is formed by the waist of the clamping leg and of the half is not issued. This also results in a simple structural design of the locking means.
  • the locking means of the clamping leg is designed as a curved tab and is integrally formed on the outside of the clamping leg.
  • the support leg of the clamping spring can have a slot-like opening which is arranged on both sides along a line of symmetry of the support leg.
  • the pivot leg has a cutout that is delimited by the holding means of the pivot leg.
  • the restoring means can be arranged in the latching state between the clamping spring and the electrical conductor and can be displaced in and against the sliding direction. This results in an advantageously simple return of the clamping spring from the latched state.
  • the restoring means is clamped in the clamped state between the clamp leg and a clamp housing in the latter. This results, with simple means and thus advantageously, in a self-reinforcing clamping effect of the restoring means in the clamping state of the spring-loaded terminal.
  • the restoring means can be displaced in the sliding direction according to a variant for restoring the clamping leg. This results in an easy-to-use and safe resetting process for the clamping leg.
  • a stop element on which the pressure surface is formed can be applied to the Garfe.
  • the stop element - possibly with the bead - has the advantage that it can be configured by the spray process optimized with the desired geometry than when introducing it directly into the printing surface of the spring because the spring material allows only a limited! Th 'forming process ' to.
  • the pressure surface can have a bead-like depression.
  • the bead-like depression easily bundles / centering the strands when peeling, in order to minimize splicing of the strands.
  • the force at which the strands are fanned out can also be increased.
  • the pressure surface has a self-centering effect due to the bead-like depression for the conductor or its wire.
  • the holding means can have at least one hook or several hooks, in particular two hooks.
  • the respective hook can then preferably have been punched out of the holding limb laterally at the edge of the holding limb and bent into a hook shape.
  • the hook or hooks can also advantageously have a long leg and a short or hook leg.
  • the hook leg can preferably be oriented at an angle ⁇ of 90 ° to 100 ° to the long leg in order to be easily latched on the one hand, but also to be easily released from the latching again by pressing a finely stranded conductor end on the holding surface.
  • the hook leg is preferably made relatively short so that it can be easily locked and is securely seated in the locked state, but also can be easily released from its locking position by pressing the end of the conductor when inserting it into the clamping point. This configuration as a hook shape enables the release and latching characteristics of the conductor connection to be set particularly well.
  • the holding means as the first latching means and / or the corresponding further latching means have one or more - in particular corresponding - bevel (s) on an edge or several edges in order to lock and unlock the respective holding means to optimize the respective corresponding locking means.
  • at least one bevel can be formed on an upward or substantially opposite to the direction of insertion of the conductor edge of the further latching means on the clamping leg, on which the holding means can come to rest in the latched state in any case at the edge.
  • the release and latching characteristics of the conductor connection can also be further optimized in this way.
  • the invention also relates to a series terminal or a plug connector with one or more spring-loaded terminals according to one or more of the claims related thereto.
  • Figure 1 in a) a three-dimensional view in section of a spring power clamp according to the invention with a clamping leg in the latched state, the for Jamming of an electrical conductor inserted into the spring-loaded terminal is provided, and in b) a three-dimensional view of the spring-loaded terminal according to the invention from FIG. 1a without an electrical conductor;
  • FIG. 2 in a) a three-dimensional view in section of a spring-loaded terminal according to the invention with a clamping leg in the clamped state, in b) a three-dimensional view of the spring-loaded terminal according to the invention from FIG. 2a without an electrical conductor;
  • FIG. 3 an exploded view of the spring-loaded terminal according to the invention
  • FIG. 4 a terminal block with two spring-loaded terminals according to the invention as
  • FIG. 5 in a) a three-dimensional view of a clamping spring of the invention
  • FIG. 6 in a) to f) a spatial enlargement of the terminal block from FIG. 4 with a variant of the spring-loaded terminal from FIGS. 1a to 3 and 5a to 5d, in g) an enlarged spatial detail of the clamping spring and the busbar of the spring-loaded terminal from FIG.
  • FIG. 7 in a) to e) each a three-dimensional view of a respective further embodiment variant of the clamping spring in an open state and in a state before assembly and in f) the exemplary embodiment from e) after a functional element has been attached;
  • FIG. 8 in a) a perspective view and in b) a side view of a further exemplary embodiment of a clamping spring in a relaxed position or in an open state and in c) and d) the clamping spring from a) and b) in a tensioned position or in a closed position once in a perspective view and once in a soan view.
  • Fig. 1 a shows a spring-loaded terminal 1 as a connection device for electrical conductors.
  • the conductors to be connected are especially removable det as stripped conductor ends. These conductor ends can also be configured as finely stranded conductors or stranded conductors.
  • the spring-loaded terminal is also suitable for single-wire conductors.
  • the spring-loaded terminal can be used in various ways, for example as a connection device for a terminal block 100 (see FIG. 4) and as a spring-loaded terminal 1 for plug connectors or the like (not shown). Other areas of application, not shown here, are conceivable.
  • the spring-loaded terminal 1 has a busbar 2 for contacting an electrical conductor 6's.
  • the busbar 2 can be designed L-shaped. But it can also be part of a multi-walled clamping cage, see Fig. 1b.
  • the terminal cage can be U-shaped in plan view, so that a conductor end can be inserted into the cross section of the U and can also have a lower transverse wall.
  • a metallic clamping cage 20 is not visible or shown here due to the sectional illustration of FIG. 1 a (and FIG. 2a), but see FIG. 1 b (or FIG.
  • the spring-loaded terminal 1 then has a compression spring acting as a clamping spring 3, which is provided for clamping the electrical conductor 6 in the spring-loaded terminal 1, whereby the electrical conductor 6 permanently contacts the busbar 2 electrically lei tend.
  • the clamping spring 3 thus serves to press the conductor 6 against the power rail 2.
  • a folding spring 4 is provided. This is used to be able to lock part of the clamping spring 3, namely a clamping leg 32, in an open position, so that the conductor 6 in the open and tensioned state of the clamping spring can be inserted into an insertion opening 11 of the spring-loaded terminal 1 up to a contacting area.
  • the clamping spring 3 can be designed in one piece with the retaining spring 4.
  • the Haltfe of 4 can, however, also be produced separately from the clamping spring 3.
  • the retaining spring 4 can then be connected to the clamping spring 3.
  • a component is preferably created with the “clamping spring arrangement” according to FIG. 1 a (and FIGS. 1 b, 2a and 2b, 5a to 5d and 7a to 7g) that the function of the clamping spring 3 and the function of the retaining spring 4 in one Component - one piece - integrated.
  • This functionally integrated design of the clamping spring 3 with the integrally molded retaining spring 4 is advantageous, but not mandatory.
  • the busbar 2 and the clamping spring 3 are net angeord in the terminal housing 12, which is preferably made from an electrically insulating material, in particular from egg nem plastic.
  • An insertion opening 11 for inserting the electrical conductor 6 is provided in the terminal housing 12.
  • the illustrated electrical conductor 6 has an electrically insulating sheath 62 which is stripped above an open end 63 of the electrical conductor 6, so that a wire 61 of the electrical conductor 6 is visible.
  • the clamping spring 3 has a clamping leg 32 which can be pivoted about a pivot axis 8 in and against a pivoting direction 81, as well as a support leg 31 with which it is supported in a simple and secure manner on a corresponding abutment, especially when the clamping leg 32 is pivoted.
  • This Wi derlager can be designed as a support leg 21. This can be formed in one piece on the busbar 2 or bent out of it.
  • the support leg 31 can, however, in other embodiments (not shown here) also be supported in other ways, for example directly in the terminal housing 12.
  • the support leg 31 here has a centrally arranged retaining tab 311. This can be bent out of the holding leg 31.
  • the retaining tab 311 is supported here on the abutment, here on a corresponding support means, here on an abutment leg 21.
  • the support leg 31 and the clamping leg 32 of the clamping spring 3 are preferably connected to one another via a bend 30.
  • an advantageous support contour 14 of the terminal housing 12 can engage, which here is penetrated by the axis of rotation 8 and which can also serve as a movement limiter for the clamping leg 32.
  • the clamping spring 3 is a total of approximately V-shaped ausal tet.
  • two connecting legs 312a, 312b extend here, which serve as connecting means to the retaining spring 4 connected here in one piece with the clamping spring 3.
  • the retaining spring 4 could, however, also be attached to the clamping spring, for example on the support leg 31 as a separately manufactured component, so be attached to the support leg 31.
  • the connecting legs 312a, 312b here form an angled, in particular approximately right-angled, bend to the retaining spring 4.
  • the retaining spring 4 then has a pivot leg 41.
  • This pivot's angle 41 can - be bent out in itself - especially to increase its strength. It can also have a pressure surface 42 at a free end, on which the conductor end strikes when it is inserted in a conductor insertion direction 7, so that it can move the pivot leg 41.
  • the pivot leg 41 is designed to be resiliently pivotable relative to the clamping spring 3, in particular relative to its support leg 31.
  • the pivot leg 31 can adjoin / form the two connecting legs 312a, 312b, or is integrally formed on them here.
  • the retaining spring 4 or its pivot leg 41 is / are pivotable about a second pivot axis 9 in and against a second pivot direction 91.
  • the retaining spring 4 has the pressure surface 42 with which the pivot leg can be pivoted ver.
  • the pressure surface 42 can be arranged transversely to a conductor insertion direction or sliding direction 7. By exerting pressure with the respective conductor end of a conductor to be inserted on the pressure surface 42, the retaining spring 4 can be pivoted in the second pivoting direction 91.
  • the pressure surface 42 adjoins a first, downwardly bent leg 411 of the pivot leg 41.
  • One or more holding means 412 which are preferably provided in one piece on the pivoting limb 41 and are in particular molded on, are formed on the swivel limb 41.
  • the holding means 412 are here two latching edges arranged approximately at the end of a second, upwardly curved leg 413 of the angular pivoting leg 41.
  • the first, downwardly curved leg 411 and the second, upwardly curved leg 413 are integrally connected to one another by a bend 414.
  • the clamping leg 32 of the clamping spring 3 has at least one or more latching means 322.
  • This one or more - here two - latching means is / are spaced from a clamping edge 321 - here formed approximately halfway along the longitudinal extent of the clamping leg.
  • the one or more latching means are designed to be attached to the holding means 412 of the pivoting leg 41 of the Retaining spring 4 to be latched, whereby in turn the clamping leg can be latched in an Of fenwolf (called latching state).
  • the latching means 322 are preferably formed at a distance of more than 1 mm, in particular more than 2 mm, from the clamping edge 321, so that it cannot be damaged by a conductor when the terminal is switched on and off.
  • the locking means 322 are not in an active connection with the clamping edge 3121, that is, they cannot be locked to this, so that they cannot damage the clamping edge during use. Rather, the latching means 322 are in operative connection with the holding means 412, so that the clamping edge is not latched.
  • the latching means 322 can be integrally formed on the clamping legs 32. You can be issued from the clamping leg 32 or be formed in this as a recess or step. You form with the holding means 412 of the pivot leg 41 of the retaining spring 4 in the latched state of the clamping leg 32 a Rastver bond. In this way, the clamping spring 3 can be locked in an open position from which it is released when the conductor is inserted.
  • the pivot leg 41 here has an opening 415 in the area of the second, upwardly curved leg 413 -also as an extension of the connecting legs 31a, 31b-, the bend 414 and the first downwardly curved leg 411, into which the clamping leg 32 in the latched state R. of the clamping leg 32 can be exchanged.
  • the opening 415 has a constriction 416 in the area of the holding means 412 and the bend 414. In this way, a compact design is ensured.
  • the clamping leg 32 accordingly has a geometrically corresponding waist 323, which here directly adjoins the locking means / locking edges 322 (see also FIGS. 2a, 3 and 5a and 5c), so that the clamping leg 32 is free can move through the opening 415.
  • a free space 13 is formed in which the electrical conductor 6 in the latched state R of the clamping leg 32 in and ge conditions the sliding direction 7 can be inserted freely.
  • the electrical conductor 6 inserted into the spring-loaded terminal 1 is moved in the sliding direction 7, the free or open end 63 of the electrical conductor 6 comes into contact with the pressure surface 42. This state is shown in FIG. 1 a and in FIG. 1 b .
  • the spring-loaded terminal 1 can also have a reset means 5.
  • the restoring means 5 is displaceable in and against the sliding direction 7. It is provided for pivoting the clamping leg 32 of the clamping spring 3 back against the pivoting direction 81.
  • the clamping leg 32 can be pivoted back from the clamping state K to the latching state R by moving the restoring means 5 against the pivoting direction 7, so that the latching means 322 of the clamping leg 32 of the clamping spring 3 latches again with the retaining means 412 of the pivoting leg 41 of the retaining spring 4.
  • An electrical conductor 6 previously jammed in the spring-loaded terminal 1 in the clamping state K can then be removed from the spring-loaded terminal 1 in the latched state R.
  • the restoring means 5 is in the latching state R (see FIGS. 1 a and 1 b) and in the clamping state K (see FIGS. 2a and 2b) above half of the latching means 322 formed integrally on the clamping leg 32 net. Therefore, when the clamping leg 32 is in the clamping state K, the restoring means 5 acts directly on the clamping leg 32 when it is moved in the sliding direction 7, so that the displacement path required to pivot the clamping leg 32 back is small.
  • the restoring means is also essentially formed between the clamping spring and the conductor.
  • this can have an actuation groove that simplifies actuation with a tool such as a screwdriver.
  • the restoring means 5 is clamped between the clamp leg 32 and the clamp housing 12 in this so that it does not come loose from the clamp housing 12.
  • 1 a and 1 b show the clamping spring 3 and the folding spring 4 in the Rastzu stood R of the clamping leg 32 of the clamping spring 3. It can be seen that the clamping leg 32 has its locking means 322, which stretched approximately on half of the longitudinal of the clamping leg 32 are formed, on the holding means 412 of the pivot leg 41 of the folding spring 4 is latched.
  • the free space 13 between the busbar 2 and the clamping leg 32 can also be clearly seen in FIG. 1 a.
  • the clamping leg 32 of the clamping spring 3 is pivoted in the pivoting direction 81 about the pivot axis 8 and its clamping edge 321 presses the wire 61 of the electrical conductor 6 against the busbar 2. It can also be seen that the clamping leg 32 the restoring means 5 when pivoting in the pivoting direction 81 against the sliding direction 7 presses. As a result, the restoring means 5 moves against the sliding direction 7.
  • the electrical conductor 6 can be released by moving the restoring means 5 starting from this clamping state K in the sliding direction 7 until the locking means 322 of the clamping leg 32 of the clamping spring 3 again with the holding means 412 of the pivoting leg 41 of the folding spring 4 in the locking state R. latched.
  • the support rail 101 is provided to line up a plurality of terminal blocks 100 on the support rail 101.
  • the mounting rail 101 with the series terminals 100 is usually received in a terminal box or in a switch cabinet.
  • Each terminal block 100 can have one or more two spring-loaded terminals 1, which can each be connected by a continuous busbar 102.
  • Figures 5b and 5d show the variant of the clamping spring 3 according to the Fi gures 1 a, 1 b, 2a, 2b, 3 and 5a and 5c each in a front view in a state before the assembly of the clamp connected here integrally with the folding spring 4 the 3 in the terminal housing 12 (Fig. 5b) and in the latched state R (Fig. 5d).
  • FIG. 6a to 6f show a further embodiment of a spring-loaded terminal 1 according to the invention, in particular a further embodiment of the clamping spring 3.
  • FIG. 6g shows the spring-loaded terminal without the terminal housing 12.
  • FIGS. 6a to 6g in relation to the spring-loaded terminal 1 and the clamping spring 3 according to FIGS. 1a, 1b, 2a, 2b, 3 and 5a to 5d.
  • the remaining elements and features can be designed as in FIG. 1, to which reference is made.
  • the clamping spring 3 according to the variant of Figures 6a to 6g is not designed in one piece with the folded spring 4 or connected to it, but designed as a separate component to the folding spring 4. In this respect, the clamping spring 3 is configured separately from the folding spring 4 here.
  • the clamping spring 3 in turn has a clamping leg 32 which can be pivoted about a pivot axis 8 in a pivoting direction 81, as well as a flap leg 31 with which it can support itself on a corresponding abutment leg 21 in a simple and secure manner, especially when the clamping leg 32 is pivoted.
  • the support leg 31 here has a central flap 311 which is bent out of the leg 31.
  • the flap 311 is supported on the corresponding support means, here the abutment leg 21.
  • the support leg 31 can also be supported in a different manner, for example directly in the terminal housing 12.
  • the support leg 31 and the clamping leg 32 are preferably connected to one another via a bend 30.
  • this bend 30 engages an advantageous Stauerkon structure 14 of the terminal housing 12, which is penetrated here by the axis of rotation 8 and which also serves as a movement limitation.
  • the spring-loaded terminal 1 has a separately produced folded spring 4 which is pivotably mounted on the terminal housing 12 here.
  • the folding spring 4 has a pressure surface 42. By pressing on the pressure surface 42, the clamping spring 3 can be pivoted in the second pivot direction 91.
  • the folded spring 4 also has a pivot leg 41.
  • a folding means 412 which is integrally formed on the pivot leg 41 is arranged on the pivot leg 41.
  • the folding means 412 is here a latching hook arranged approximately in the middle on the pivoting leg 41.
  • the clamping leg 32 of the clamping spring 3 has spaced from its clamping edge 321 - here approximately on the half of its longitudinal extent - to the folding means 412 geo metrically corresponding, with the folding means 412 of the pivoting leg 41 of the folding spring 4 in a latching state R of the clamping leg 32 in an operative connection Latching means 322 on.
  • the locking means 322 is here on the line of symmetry of the
  • the clamping leg 32 is designed as a recess or step formed in the clamping leg 32 and thus forms a locking connection with the holding means 412 in the latching state R of the clamping leg 32.
  • the spring-loaded terminal 1 can also have a leaf spring 43 which can additionally support the retaining spring 4.
  • FIGS. 7a to 7h and FIGS. 8a to 8d each show further particularly advantageous embodiment variants of clamping springs 3 configured in one piece with the retaining spring 4.
  • FIG. 7 a illustrates a first further embodiment variant of a clamping spring 3 configured in one piece with the retaining spring 4.
  • the holding means 412 of the pivoting leg 41 of the retaining spring 4 is shaped here as a single hook, preferably formed by a curved tab which is formed in one piece with the pivoting leg 41.
  • the respective hook can be cut out and bent out of the sem from the pivot leg 41 during manufacture. Its shape is exemplary. It can also be shaped slightly differently, so have a differently shaped hook end.
  • the pivoting leg 41 can accordingly have a one-sided edge recess 418 due to the punching out of the holding means.
  • the first, downwardly bent leg 411 of the pivot leg 41 is narrow and, in particular, is narrower in comparison to the design of the retaining spring 4 according to FIGS. 1 a, 1 b, 2a, 2b, 3 and 5a to 5d.
  • This embodiment is characterized by a very simple structure and a very compact design.
  • a one-sided recess 323 ‘on the clamping leg 32 is provided. It is advantageous that the holding means 412 of the pivot leg 41 of the holding spring 4 can be arranged at a relatively large distance from the clamping edge.
  • One edge, here a narrow edge of this edge recess 323 ‘acts as a corresponding counter-locking means for the locking means“ hook ”.
  • the support leg 31 of the clamping spring 3 - can have an elongated, for example, slot-like opening here. This can be arranged on both sides along a line of symmetry of the support leg 31.
  • Fig. 7b shows a further embodiment of the one-piece with the retaining spring 4 from designed clamping spring 3.
  • the retaining means 412 of the pivot leg 41 is in turn designed as a single hook, which is cut out of the pivot leg 41 (here from its center) and through against the Conductor insertion direction is turned off upwards so that an elongated hole is formed in the pivot leg 411.
  • the locking means 322 of the clamping leg 32 are formed according to FIG. 7b by a hole, in particular an elongated hole 324 in the clamping leg 32, which is spaced apart from the clamping edge 321 and into which the hook of the leg leg 41 can dip for locking in the open position (here not shown) to reach behind an edge of the hole.
  • This variant is also easy to manufacture, so it is inexpensive and safe.
  • the clamping edge 321 is again advantageously spared since it does not contribute to the locking of the clamping spring in the open position.
  • FIG. 7a There can be provided as holding means 412 two or more hooks / tabs shaped like FIG. 7a or similarly Lich (see Fig. 7b and Fig. 8a to 8d, which in the latched state or open state respectively edges on a waist 323 of the clamping leg 321 can reach behind (FIGS. 8b, 8d). Both hooks have been partially cut out and bent out of the pivot leg 41 at the edge during manufacture.
  • both the clamping spring 3 and the retaining spring 4 can be formed from a single rectangular blank or strip of constant width, from which tabs, webs or hooks punched out of the blank are issued and have been bent into shape and / or in the recesses or holes have been formed.
  • the design variants of the clamping spring 3 designed in one piece with the retaining spring 4 according to Figures 7a to 7d and 8a to 8d advantageously show inexpensive designs of the clamping spring 3, since these design variants can be assumed to be a flat semi-finished product that already has the finished width of the clamping spring 3, so that it only has to be cut or notched at the edge areas of the flat semi-finished product in order to generate the desired geometries at its edge areas for the shaping of the clamping spring 3 or the retaining spring 4. This means that there is very little waste or scrap.
  • the pressure surface 42 of the retaining spring 4 can have a bead-like Vertie fungus 44, into which the conductor end can dip when peeling.
  • the Bead-like recess 44 easily realizes a bundling / centering of the strands during skiving in order to minimize fanning of the strands.
  • the force at which the strands fade can also be increased.
  • a stop element 45 can be applied to the retaining spring 4, on which the actual pressure surface is formed.
  • This pressure surface can in turn be designed as a bead in the stop element.
  • the stop element 45 can be pushed onto the retaining spring 4. It can, for example, be designed as a type of block element made of plastic, which is pushed onto the area of the retaining spring 4 which would serve as a pressure surface without the stop element 45 (FIGS. 7e, 7f).
  • the stop element 5 can, however, also be applied by an injection molding process to the area of the retaining spring 4, which would serve as a pressure surface without the stop element 45 (not shown).
  • the pressure surface 42 of the Haltefe of 4 for example, has no bead-like depression 44 and also no functional element 45, but is flat.
  • the pressure surface 42 is also in good working order in this way in order to be able to release the clamping spring from the latched state.
  • the pivot leg 41 of the exemplary embodiments according to FIGS. 7a) to f) can accordingly have a one-sided edge recess 418 due to the punching or have such an edge recess 418 on both sides at its edges (see in particular also FIGS. 8a to 8d).
  • the first, downwardly bent leg 411 of the pivot leg 41 can thus be made narrow, in particular made narrower in comparison to the design of the retaining spring 4 according to FIGS. 1 a, 1 b, 2a, 2b, 3 and 5a to 5d.
  • FIGS. 7c) and 7d) and FIGS. 8a) to 8d) are distinguished by a particularly simple structure and a very compact design.
  • two respective edge recesses 323 rand can be provided on the clamping leg 32. It is advantageous that the holding means 412 of the pivoting leg 41 of the holding spring 4 can be arranged at a relatively large distance from the clamping edge.
  • the pivoting leg 41 of FIGS. 7c) and 7d) as well as 7e) and 7f) and 8a) to 8d) has two edge recesses 418 on the edge as a result of the punching out on.
  • the hooks 412 can each engage behind edges as latching means 322 depending on respective edges on a waist 323 of the clamping leg 321 (Fig.
  • the hook or hooks 412 preferably have a long leg 412a and a short or hook leg 412b.
  • the hook leg 412b can preferably be oriented at an angle ⁇ of 90 ° to 100 ° to the long leg 412a in order to be easily latched on the one hand, but also to be easily released from the latching again by pressing a finely stranded conductor end on the holding surface 42.
  • one or more of the locking means 322 - here designed as locking edges - to see ver with a bevel 322 '.
  • the respective bevel 322 ‘can be designed as a bevel. It can help to simplify the locking of the locking leg as a result of the locking means 322 reaching behind with the locking hook or hooks 412 in the open state.
  • the short or hook shank 412b can be designed to be relatively short and, above a bending radius of, for example, 0.3 to 0.5, can only have a length of 0.4 mm to 0.6 mm, in particular 0.5 mm, in order to be safe to be lockable and yet to be easily detachable. Overall, it thus has a length of 1.5 mm or less, in particular 1 mm or less, for example. This length is particularly advantageous with a conductor cross-section of 2.5 mm. It can be adapted accordingly for other conductor cross-sections.
  • a bevel can also be formed, in particular a bevel of about 0.1 mm, in order to optimally design the pivoting of the contact leg 32 into its locking position.
  • the leg 413 can have an angle g of 50 ° to 70 °, in particular 60 °, to the support leg 31 in order to optimize the pivoting of the contact leg 32 in interaction with the leg 413 with regard to overlapping the latching.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

L'invention concerne une borne à ressorts (1) servant à connecter un conducteur, la borne à ressorts étant une borne de poussée et comprenant : a. une barre omnibus (2) ; b. un ressort de serrage (3), qui agit comme un ressort de compression, c. un ressort de maintien (4) servant à verrouiller le ressort de serrage (3) dans une position ouverte, d. le ressort de serrage (3) comportant un bras de serrage (32) comportant un bord de serrage (321), ledit bras de serrage pouvant pivoter autour d'un premier axe de pivot (8), et le ressort de maintien (4) comportant un bras pivotant (41) qui peut pivoter autour d'un second axe de pivot (9), e. le bras pivotant (41) comportant au moins un moyen de retenue (412) et le bras de serrage (32) comportant un moyen de verrouillage (322) qui coopère avec ledit moyen de retenue lorsque le bras de serrage (32) est dans l'état verrouillé R, f. le bras de serrage (32) pouvant être déplacé de l'état verrouillé R à un état de serrage K à la suite d'un coulissement du conducteur électrique (6), dans lequel état de serrage le bras de serrage est libéré et presse le conducteur électrique (6) contre la barre omnibus (2) au moyen du bord de serrage (321), et g. le moyen de verrouillage (322) du bras de serrage (32) étant espacé du bord de serrage (321).
EP20816149.7A 2019-11-28 2020-11-26 Borne à ressorts de conducteur Pending EP4066320A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019132316.9A DE102019132316A1 (de) 2019-11-28 2019-11-28 Federkraftklemme für Leiter
PCT/EP2020/083500 WO2021105280A1 (fr) 2019-11-28 2020-11-26 Borne à ressorts de conducteur

Publications (1)

Publication Number Publication Date
EP4066320A1 true EP4066320A1 (fr) 2022-10-05

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Application Number Title Priority Date Filing Date
EP20816149.7A Pending EP4066320A1 (fr) 2019-11-28 2020-11-26 Borne à ressorts de conducteur

Country Status (6)

Country Link
US (1) US20220416449A1 (fr)
EP (1) EP4066320A1 (fr)
JP (2) JP7539468B2 (fr)
CN (1) CN115053405A (fr)
DE (1) DE102019132316A1 (fr)
WO (1) WO2021105280A1 (fr)

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DE102022111342A1 (de) 2022-05-06 2023-11-09 Weidmüller Interface GmbH & Co. KG Anschlussvorrichtung, die als Federkraftklemme zum Anschluss eines Leiters ausgelegt ist
DE102022113950A1 (de) 2022-06-02 2023-12-07 Weidmüller Interface GmbH & Co. KG Federkraftklemme für Leiter
DE102022118078A1 (de) 2022-07-19 2024-01-25 Weidmüller Interface GmbH & Co. KG Anordnung aus zumindest einer Klemmfeder und eine Haltefeder und eine Federkraftklemme für Leiter
DE102022132730A1 (de) 2022-12-08 2024-06-13 Weidmüller Interface GmbH & Co. KG Federkraftklemme für Leiter
DE102022132911A1 (de) * 2022-12-12 2024-06-13 Phoenix Contact Gmbh & Co. Kg Anschlussklemme zum Anschließen einer elektrischen Leitung
CN117317681B (zh) * 2023-11-23 2024-02-20 中规院城市更新(山东)有限公司 室外楼体壁挂式综合防雨防水接线连接装置

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DE1213024B (de) * 1961-09-08 1966-03-24 Siemens Ag Klemme fuer schraubenlosen Leiteranschluss
DE20300266U1 (de) 2003-01-08 2004-05-19 Bals Elektrotechnik Gmbh & Co. Kg Leiteranschlussklemme, insbesondere für Steckverbinder
DE102010054679B4 (de) * 2010-12-15 2012-08-30 Bjb Gmbh & Co. Kg Klemmkontakt
DE202013100740U1 (de) * 2013-02-19 2013-03-08 Weidmüller Interface GmbH & Co. KG Federkraftklemme für Leiter
DE202014103797U1 (de) * 2013-08-27 2014-11-28 Weidmüller Interface GmbH & Co. KG Federkraftklemme für Leiter
PL2947718T3 (pl) * 2014-05-23 2018-06-29 Berker Gmbh & Co. Kg Zacisk przyłączeniowy dociskany sprężyną
JP2016058331A (ja) 2014-09-12 2016-04-21 パナソニックＩｐマネジメント株式会社 押圧ばね、速結端子、およびそれを用いた配線器具
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DE202016104971U1 (de) 2016-09-08 2017-12-11 Weidmüller Interface GmbH & Co. KG Direktsteckklemme für einen Leiter
DE102019121442A1 (de) * 2019-08-08 2021-02-11 Phoenix Contact Gmbh & Co. Kg Anschlusseinrichtung zum Anschließen einer elektrischen Leitung

Also Published As

Publication number Publication date
JP2023504116A (ja) 2023-02-01
CN115053405A (zh) 2022-09-13
DE102019132316A1 (de) 2021-06-02
JP2024099782A (ja) 2024-07-25
JP7539468B2 (ja) 2024-08-23
WO2021105280A1 (fr) 2021-06-03
US20220416449A1 (en) 2022-12-29

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