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
  • 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
  • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
  • H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component

Definitions

• the invention relates to a terminal block, in particular for latching onto a mounting rail, with a terminal housing, with a busbar and at least two conductor connection elements for connecting at least two conductors to the busbar, wherein on both connection sides in the terminal housing in each case two function shafts and in the busbar corresponding to first functional shaft, a first connection possibility for a test plug socket or a test plug and corresponding to the second functional shaft, a second connection possibility for a fixed bridge or a switching bridge is formed.
• the invention also relates to a terminal block consisting of at least two juxtaposed on a mounting rail terminal blocks.
• Electrical terminal blocks have been known for decades and are used millions of times in the wiring of electrical systems and equipment.
• the terminals are usually snapped onto mounting rails, which in turn are often arranged in a plurality in a control cabinet.
• conductor connection elements predominantly screw terminals or tension spring terminals are used in terminal blocks.
• cutting terminals or leg spring terminals can be used.
• the basic type of terminal block is the connection terminal, which has at least two conductor connection elements, which are electrically connected to one another via an electrically conductive connection rail, the busbar.
• this basic type which is often referred to as a feed-through terminal
• terminal blocks which are specially adapted to the particular application.
• protective conductor terminals, disconnect terminals and test terminals may be mentioned here.
• terminal blocks used in power converter measuring circuits of power generation, transmission and distribution often different switching, separation and testing tasks are to be implemented.
• There are various accessories for this purpose such as test sockets, fixed bridges or jumpers, which can be fastened in the terminal blocks and electrically connected to the busbar.
• fixed bridges With the help of fixed bridges can In this case, a potential distribution between adjacent terminal blocks can be realized in a simple manner.
• Switching bridges serve to electrically connect two or more adjacent terminal blocks as required, so that it is possible to short-circuit a connected current transformer.
• test disconnect terminal A special type of terminal block, which is used in particular in current transformer measuring circuits or voltage transformer measuring circuits, is the so-called test disconnect terminal, which is often referred to as a Meßwandlertrennklemme according to their use.
• the bus bar consists of two sections, which can be selectively connected to each other or disconnected by a circuit breaker.
• Such a terminal block, from which the invention proceeds, is marketed by the applicant under the name fürschennklemme URTK 6 (see catalog CLIPLINE 2007, page 334, the Phoenix Contact GmbH & Co. KG).
• the known terminal has two connection sides in the terminal housing each two function shafts and corresponding to the function shafts in the two sections of the busbar each have two connection options for a test socket, a test plug, a fixed bridge or a jumper.
• the connection of the aforementioned switching and test accessories to the two sections of the busbar is effected in that in each of the sections of the busbar two threaded bores are formed into which a screw of the respective accessories can be screwed. This ensures secure attachment and good electrical contact of the respective accessories in the terminal block or busbar.
• the disadvantage here, however, that the screwing of the respective accessories in the busbar is relatively time consuming.
• bridging with adjacent terminal blocks is only possible to a limited extent.
• the present invention is therefore an object of the invention an initially described terminal block or a terminal block, consisting of several terminal blocks, to provide, in which the assembly of the test and switching accessories can be done easily and flexibly.
• the terminal is a variety of combinations of switching and Allow für educazube reviewss so that the terminal block or a terminal block can be easily adapted to a variety of different applications.
• connection options are designed as openings in the busbar, in which either a test plug socket, a test plug, a fixed bridge or a switching bridge can be plugged. Due to the formation of a third functional shaft and a third connection option in the busbar different bridging are possible even when plugged test socket, since two connection slots still two function shafts for fixed bridges or jumpers are available.
• the formation of corresponding thread-free, preferably rectangular openings in the busbar screwless mounting of the test and switching accessories by simply inserting the respective contact elements of the accessories in the openings is possible.
• the openings and the contact elements of the switching and test accessories are designed and matched to one another such that the test plug sockets, the test plugs, the fixed bridges and the jumpers can each be latched in the individual openings in the bus bar.
• a latching hook is formed at the end of the contact element of the test plug socket, so that the test plug socket can be captively locked in an opening in the busbar.
• a captive Verra- stung a test plug socket in the terminal block is particularly required when a safety test plug aggimeßtechnisch to be connected to the test socket.
• the captive locking of the test plug socket in the busbar ensures that when the safety test plug is removed from the test plug socket, it is not accidentally pulled out of the functional slot of the terminal block is, which would be the risk that the uninsulated contact element of the test socket is touched by the fitter.
• the function shafts and the openings in the busbar all have the same dimensions. This makes it possible to plug any accessory into any function bay or opening in the busbar.
• the individual function shafts or the individual openings are thus not assigned to specific types of accessories, for example only the bridges or the test plug sockets.
• an isolating terminal used in the current transformer measuring circuit for example, a switching bridge for switching a current transformer short circuit on both connection sides, i. Insert the separation point into a funnel on both sides.
• the conductor connection elements may be formed both as leg spring terminals, as screw terminals and as tension spring terminals. This creates the possibility for the user to select the connection technology preferred by him.
• the function shafts and the openings in the busbar regardless of the connection technology used in each case at the same position within the terminal housing, so that adjacent to one another alsgerastete terminal blocks with different conductor connection elements can be bridged together or connected via a switching bridge.
• the terminal block according to the invention is a scholartrennklemme, so that the busbar consists of two sections and a longitudinal circuit breaker is pivotally mounted such between the two sections of the busbar in the terminal housing, that the two sections in a first position of the Longitudinal disconnector connected to each other and in a second position of the longitudinal separation Switches are separated.
• the longitudinal circuit breaker preferably has a separating blade arranged in an insulating housing and can also be inserted and latched in the terminal housing.
• the object underlying the invention is achieved in that in each case three function shafts are formed in the terminal boxes of the terminal blocks on both sides of the connection and that in the busbars of the terminal blocks on both sides of the connection corresponding to the three function shafts three openings are formed in the optional test sockets, test plugs, fixed bridges or jumpers can be inserted.
• three function shafts are formed in the terminal boxes of the terminal blocks on both sides of the connection and that in the busbars of the terminal blocks on both sides of the connection corresponding to the three function shafts three openings are formed in the optional test sockets, test plugs, fixed bridges or jumpers can be inserted.
• the terminal block on at least one terminal with a continuous busbar, a so-called feed-through terminal, and at least one educaetrennklemme.
• the terminal block may also have a ground terminal, i. a terminal block, in which a bus bar is arranged with a ground terminal. All terminal blocks, i. Both the test disconnect terminal and the feed-through terminal and the protective conductor terminal have an identical terminal housing with identical width and length.
• a pre-assembled neutral-point bridge can be inserted directly into the functional shafts of the corresponding disconnect terminals and the protective conductor terminal lying on a line Protective conductor terminal is bridged, so that the neutral point of the transducer can be grounded.
• the terminal block additionally has a cutting disc which is snapped adjacent to the other terminal blocks on the mounting rail, wherein in the housing of the cutting disc a plurality of recesses for receiving the switching and inspection accessories, in particular the jumpers are arranged.
• the cutting disc thus offers a "parking space” for jumpers, so that the "parked" in the cutting disc bridges are immediately available when appropriate bridging to be made.
• FIG. 1 is a perspective view of two adjacent terminal according to the invention with leg spring terminals
• Test socket as well as two not yet fixed bridges and a jumper
• FIG. 5 shows a terminal block according to FIG. 1, in longitudinal section, with inserted accessories, FIG.
• FIG. 6 is a detail of the terminal block of FIG. 5,
• Fig. 8 is a perspective view of a terminal with Switzerlandfedererklemmen
• Fig. 9 is a perspective view of a terminal with
• FIG. 10 is a perspective view of a terminal block formed as a terminal
• FIG. 11 is a perspective view of a trained as a protective conductor terminal terminal block
• FIG. 12 is a plan view of a terminal block with multiple terminal blocks and a blade.
• the terminal blocks 1 which can be latched onto a mounting rail 2, each have a generally made of plastic terminal housing 3, in which a busbar 4 and two conductor connection elements 5, 6 are arranged.
• the conductor connection elements 5, 6 are designed as leg spring terminals, into each of which a conductor to be connected can be inserted through a conductor insertion opening 7 formed in the terminal housing 2.
• the conductor connection elements 5, 6 can also be designed as tension spring terminals (FIG. 8) or as screw terminals (FIG. 9).
• the contact elements of the test jack 1 1, the fixed bridge 12 and the switching bridge 13 are designed so that the respective accessories when plugging into the opening 14, 15, 16, the busbar 4 not only electrically contacted, but also in the busbar. 4 locked.
• the contact elements of the fixed bridge 12 and the switching bridge 13 each have two mutually parallel contact legs, of which at least one is resilient and has a latching nose.
• the end of the contact element of the test plug socket 11 has a latching hook 17, so that the test plug socket 11 can be latched captively in one of the openings 14, 15, 16 in the busbar 4.
• the test plug sockets 11 shown in the figures are designed such that the corresponding safety test plugs of safety measuring leads can be plugged into their plastic-jacketed sockets 18.
• the accessory can be plugged into any functional shaft 8, 9, 10 or in any opening 14, 15, 16 in the busbar 4.
• the individual functional shaft 8, 9, 10 are thus not associated with a particular accessory, so that there is a variety of individual combination options for inserting the switching and test accessories.
• a switching bridge 13 can be inserted into the function shafts on both sides of the connection, as shown in Fig. 4. This is achieved in that the function shafts 8, 9, 10 and the openings 14, 15, 16 in the busbar 4 all have the same dimensions.
• test plug sockets 11 offset from one another into the function shafts 8, 9, 10 of adjacent terminal block 1 so that safety test plugs with a diameter of 10 mm can also be plugged into terminal housing 3 with a width of 8 mm.
• the terminal blocks 1 shown in FIGS. 1 to 8 are in each case so-called isolating terminals, in which the busbar 4 consists of two sections 19, 20 which are selectively connected to one another or separated from one another by means of a longitudinal circuit breaker 21 rotatably mounted in the terminal housing 3 can be separated.
• the longitudinal circuit breaker 21 has a separating knife 23 arranged in an insulating housing 22 which, in a first position shown in the figures, contacts the ends 24, 25 of the sections 19, 20 of the busbar 4 facing away from the conductor connecting elements 5, 6, so that the two sections 19, 20 are electrically connected to one another via the separating knife 23. In a second position of the separating blade 23 this contacts neither the end 24 of the portion 19 nor the end 25 of the portion 20, so that the two sections 19, 20 are not electrically connected to each other.
• a pivot pin 26 is integrally formed on the insulating housing 22, which is supported in a corresponding opening in a side wall 27 of the terminal housing 3.
• an actuating shaft 28 is formed, into which a tool, in particular the tip of a screwdriver, can be inserted.
• the actuating shaft 28 is dimensioned so that in him the tip of a screwdriver can be inserted, with which also the conductor connection elements 5, 6 can be operated. For switching the longitudinal circuit breaker 21 thus no additional tool is required.
• the terminal 1 according to FIG. 8 has two spring clips as conductor connection elements 5, 6 and the terminal block 1 according to FIG. 9, two screw terminals. It is essential that the terminal housing 3 have the substantially same dimensions, regardless of whether the conductor terminal elements 5, 6 as leg spring terminals, as screw terminals or as tension spring terminals are formed.
• the function shafts 8, 9, 10 and the openings 14, 15, 16 are arranged in the busbars 4 at all three terminal blocks 1 at the same position, so that a continuous bridge and caption adjacent on a mounting rail 2 latched terminal blocks 1 is possible, regardless of what type of conductor connection elements 5, 6, the terminal blocks
• Fig. 10 shows a series terminal 1 formed as a through terminal, i. a terminal 1, which has a continuous busbar 4.
• Fig. 11 shows a terminal 1, which is designed as a protective conductor terminal.
• a continuous busbar 4 is thus also arranged in the terminal housing 3, the busbar 4, however, being connected to the mounting rail via a ground terminal 29
• All terminal blocks 1, i. Both the isolating terminal and the feed-through terminal and the protective conductor terminal have a contoured terminal housing 3, each with identical width and length.
• the terminal block shown in Fig. 1 1 consists of four identical disconnect terminals 1 and a likewise ratcheted on the support rail 2 on the right side cutting disk 30, which is formed substantially the same contour to the disconnect terminals 1.
• the cutting disc 30 has a plurality of recesses 31, in the unneeded accessories, in particular bridges 12 not required can be inserted.
• the cutting disc 30 thus acts as a support or parking for temporarily unnecessary bridges 12. From Fig. 11 is also apparent that the individual terminal blocks 1 and the blade 30 are formed symmetrically to the support rail 2, so that the installation direction of the terminal blocks 1 and the blade 30 is freely selectable within a switchgear.

Landscapes

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

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Applications Claiming Priority (2)

Publications (2)

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• 2008
  • 2008-03-14 DE DE102008014177A patent/DE102008014177A1/de not_active Ceased
• 2009
  • 2009-03-12 US US12/922,610 patent/US8460038B2/en not_active Expired - Fee Related
  • 2009-03-12 CN CN200980117769.9A patent/CN102084550B/zh active Active
  • 2009-03-12 WO PCT/EP2009/001793 patent/WO2009112265A2/de not_active Ceased
  • 2009-03-12 EP EP09720226.1A patent/EP2255410B1/de active Active
  • 2009-03-12 ES ES09720226.1T patent/ES2580169T3/es active Active
  • 2009-03-12 JP JP2010550090A patent/JP5260683B2/ja not_active Expired - Fee Related

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