EP0125489B1 - Kontaktapparat zur Kontaktierung elektrischer Kabelleiter mit Stromsammelschienen - Google Patents

Kontaktapparat zur Kontaktierung elektrischer Kabelleiter mit Stromsammelschienen Download PDF

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Publication number
EP0125489B1
EP0125489B1 EP84103989A EP84103989A EP0125489B1 EP 0125489 B1 EP0125489 B1 EP 0125489B1 EP 84103989 A EP84103989 A EP 84103989A EP 84103989 A EP84103989 A EP 84103989A EP 0125489 B1 EP0125489 B1 EP 0125489B1
Authority
EP
European Patent Office
Prior art keywords
housing
insulating material
lug
connection
connection lug
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.)
Expired
Application number
EP84103989A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0125489A3 (en
EP0125489A2 (de
Inventor
Helmut Schweiger
Hermann Grass
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6196149&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0125489(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to AT84103989T priority Critical patent/ATE27385T1/de
Publication of EP0125489A2 publication Critical patent/EP0125489A2/de
Publication of EP0125489A3 publication Critical patent/EP0125489A3/de
Application granted granted Critical
Publication of EP0125489B1 publication Critical patent/EP0125489B1/de
Expired legal-status Critical Current

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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
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/142—Their counterparts

Definitions

  • the invention relates to a contact apparatus for contacting electrical cable conductors with busbars, which essentially consists of an open-ended insulating housing and at least one broad-area connection lug arranged therein, the latter having a pair of spring-loaded contact fingers at one end and with a clamping lug contacting bracket of the cable conductor is equipped at its other end.
  • Such a contact apparatus can be found in EP-A-0 012 455 and is also already used in corresponding systems.
  • a separate holding element is used, which causes the connection lug to be held in its housing in a manner which is at most slightly displaceable.
  • the handling of this holding element is simple, but it is a separate part, which can easily fall down during assembly and can also be lost in the process.
  • the risk that this holding element can slip out due to vibrations, for example during transport cannot be completely ruled out.
  • the object of the present invention is to further simplify the assembly of the contact apparatus and to avoid the risk of improper mounting of the terminal lug inside its insulating material housing. It is also desirable to provide a contact apparatus which, if necessary, can also be subjected to higher current loads without significantly increasing the size of the connecting lugs, because then the bendability of the contact finger pairs to be plugged onto the busbars becomes critical.
  • a flap is formed transversely to the direction of insertion of the connecting lug, which is provided on its freely resilient end region with at least one locking lug, which in turn engages behind an edge of a recess in the connecting lug - preventing its return - and furthermore that the connecting lug has a projection on at least one of its narrow sides, which, in the inserted and latched position of the connecting lug in the insulating housing, abuts a housing projection projecting into the housing interior and thus prevents an insertion movement of the terminal lug beyond the latching position.
  • the freely resilient end of the resilient tab can also be at least slightly tapered compared to its remaining thickness, and the rest of the catch can be located before this tapering begins. This tapering of the outermost free end of the tab offers easy releasability of the terminal lug, by means of a simple knife or screwdriver, i.e. using a simple or even provisional tool.
  • the recess in the connecting lug for receiving the latching lug emanating from the resilient tab it is proposed to arrange it in the area between the pair of contact fingers and the clamping lug and to form it as a completely closed rectangular opening with a clearly uneven aspect ratio, the longitudinal course of the recess being transverse should be located to the direction of insertion of the terminal lug.
  • Such and such a recess provides a comparatively wide support edge for a wide or, for example, two narrower, side-by-side locking lugs, with the result that their load is not excessively large, particularly when the terminal lug is being plugged onto a busbar.
  • the insulating housing of the contact apparatus with regard to the most important inner contours as an approximately tubular part with a longitudinal wall part that divides the pipe cross section in the area of the insertion end for the connecting lug form, from which two cross-sectionally extending, resiliently bendable tabs with latching lugs arranged at their free ends extend; in this case, each of the tabs serves to hold one of two connecting lugs opposite one another in mirror image with their broad sides.
  • two connection lugs can be arranged within one and the same insulating material housing, whereby - at least when the cable conductors are connected in parallel - the current carrying capacity of the contact apparatus is practically doubled.
  • the proposal is to provide ribs directed from the insulating material housing into the interior of the housing or instead to emboss grooves in the walls of the insulating material housing which adjoin the lateral edges of the connecting lugs to be accommodated.
  • the housing protrusion can be provided at the ends of the respective rib or said groove (always seen in the direction of insertion) against which the associated protrusion of the connecting lug, which prevents its further insertion, strikes. If such a housing projection is combined with the adjacent rib in terms of material, there is a particularly favorable value with regard to the load-bearing capacity of the housing projection. The risk of a housing projection of this type breaking off is thus practically excluded even when the impact load is not intended as such.
  • an insulating housing for a contact apparatus of the type in question design of an insulating housing for a contact apparatus of the type in question can be seen in giving the said housing a box-like shape, of which a single or multi-channel connector for receiving one or more terminal lugs lying one by one with the narrow sides or one or more terminal lugs arranged in pairs next to one another.
  • a resilient tab formed on a channel wall or a transverse wall with at least one latching lug can be arranged on the freely resilient end region within the or each channel of the single-channel or multi-channel connector, whereby it is provided that insert a connection lug within each channel and lock it using the latch.
  • means for connection to adjacent insulating material housings of the same design can also be formed on the insulating material housing, in particular inclined projections, which allow a plug connection of adjacent insulating material housings according to the known dovetail principle.
  • Comparable means and forms can be found in the aforementioned EP-A-0 012 455 and therefore no longer new per se, not even for contact devices of the particular genre in question here.
  • a particularly well-designed, and at the same time very essential, training option for contact apparatuses in accordance with the present invention can be seen in the proposed idea of designing the insulating housing for receiving one or more connecting lugs as a molded-on component of an insulating part, the latter being of a greater dimension than it is for accommodating the provided connecting lugs is required, and which serves other functions, namely in particular as a slide-in wall, as a frame wall for slide-in cabinets, as a device housing or the like.
  • these contact devices can also be directly attached to large-area insulating material parts, in the sense of being molded onto these insulating material parts.
  • the insulating device serving the contact apparatus regardless of whether it is a single-pole or multi-pole separate contact apparatus or a construction as mentioned last, on its end surrounding the contact finger pairs of the connecting lugs on opposite walls with slot-like walls to provide recesses which are in the same direction as the slots formed between the pairs of contact fingers, but are at least slightly wider than these slots, and permit a continuous straight course of busbars to be contacted with the terminal lugs.
  • This has the advantage that the contact point between the busbar and the terminal lug to be plugged on is largely surrounded by the housing in a protective manner.
  • connection lug 2 already equipped with a cable conductor 1 for a contact apparatus according to the present invention.
  • this terminal lug 2 has a pair of contact fingers 3 and 4 at its end pointing to the right in the illustration, and at its opposite end an originally flat and jagged terminal lug 5, which is now clawed to the cable conductor 1, by means of a cable-shaped spring clip 6, the contact fingers 3 and 4 are pressed towards one another, the free ends of the spring clip 6 engaging on webs 7 and 8 which are bent out toward the viewer.
  • this connecting lug 2 additionally has two characteristic features, namely projections 9 and 10 on their narrow sides, and a rectangular opening 11 with a clearly unequal aspect ratio, the longitudinal profile of this rectangular opening 11 being transverse to the longitudinal extension or also to the direction of insertion the terminal lug 2 is located.
  • the projections 9 and 10 just mentioned are created by notching in the area of the contact fingers 3 and 4.
  • the slit 12 and an elongated hole 13 in the connecting lug 2 Bendability of the contact fingers 3 and 4 is improved or facilitated.
  • FIG 2 a portion of an insulating housing 14 is shown cut open, and that is equipped with the connecting lug 2 shown separately in Fig. 1. It should also be noted that this connecting lug 2 is plugged onto a busbar 15, the rectangular cross-section of which - hatched - can be seen . Furthermore, it can be seen from this illustration that the projections 9 and 10 on the terminal lug 2 abut housing projections 16 and 17 projecting into the interior of the insulating material housing 14, so that further insertion of the terminal lug 2 into the insulating material housing 14 is prevented.
  • FIG. 3a in addition to the two tabs 21 and 22, one finds here the wall part 20 as well as the housing projection 16 and the rib 18 starting from this housing projection 16 or molded together with it. Approximately opposite, if somewhat in the longitudinal direction moved, a further housing projection 23 and a rib 24 corresponding to the rib 18 can be seen. It should also be mentioned that further ribs 25 and 26 extend from the housing projection 16 as well as from the housing projection 23, which ultimately serve the same purpose as the aforementioned ribs 18, 19 and - underneath - 24. All of these ribs serve - as already mentioned - the leadership of the terminal lug 2 and finally their position.
  • tabs 21 and 22 are very important, because they each have a latching cam 27 or 28 in the region of their freely resilient end and finally end in a slight taper 29 and 30.
  • This latching cam 27 on the tab 21 causes Inserting the terminal lug 2 in the direction of arrow 31 (indicated in FIG. 3a on the left of the insulating material housing 14) firstly a bending of the tab 21, as is indicated in FIG. 3b. A further insertion of the terminal lug 2 finally leads to its latching with the latching cam 27, which snaps into the rectangular opening 11 already mentioned in the terminal lug 2, which is illustrated in FIG. 3c.
  • This Figure 3c also shows the final assembled position of the terminal lug 2, which due to its stop on the housing projections 16 and 17 (see Fig. 2) can not be inserted further than shown, but which also, due to the latching of the locking cam 27, not can be traced back.
  • a return of the terminal lug 2 is still possible, namely by gripping behind the taper 29 with a simple tool, for example with a knife or a screwdriver, the tab 21 is bent into the position shown in FIG. 3b and the terminal lug 2 is pushed back becomes.
  • connection lug 2 which can again be seen here, has thus already assumed and maintained its position as shown in FIG. 3c, a further connection lug 32 can be seen in its not yet fully inserted position, the second tab 22 now bending with its latching cam 28.
  • the connecting lug 32 Upon further insertion of the connecting lug 32, as with the connecting lug 2, the locking cam 28 will engage in a rectangular opening 33 of the connecting lug 32 and thus fulfill the holding and locking function already described.
  • the connecting lug 32 can be inserted a little deeper into the insulating housing 14, because of the somewhat longitudinally displaced position of the housing projection 23 and the locking cam 28.
  • FIG. 4 illustrates in a longitudinal section an insulating material housing 34, which could roughly correspond to the one as indicated in FIGS. 2 and 3a to 3d. It has an essentially tubular shape, the insertion area for two connecting lugs pointing to the left in the illustration being in turn penetrated by a wall part 35. Tabs 36 and 37 extend from this wall part 35 and run in a fork-like manner to one another in the cross section shown. Each of these tabs 36 and 37 is with a locking cam 38 and 39 provided, the meaning and function of which has already been explained in detail in connection with the individual representations of FIGS. It may also be worth mentioning that the tab 37 is longer than the other tab 36, and the locking cam 39 is also offset from the opposite locking cam 38.
  • protruding housing projections 40 and 41 are formed in the interior of the insulating housing 34, which serve as stops for the terminal lugs to be received.
  • FIG. 5 illustrates a top view of the insulating material housing 34.
  • FIG. 5 illustrates a top view of the insulating material housing 34.
  • the end of the insulating material housing 34 which points towards the right in the illustration has recesses 46 and 47 (see also FIG. 4) which serve for the passage of current busbars, or in other words: are necessary when one - As happened in the present case - the insulating housing 34 would like to protect around the ends of the terminal lugs to be contacted with the busbars to be accommodated.
  • FIG. 6 shows a section VI-VI, the course of which is indicated in FIG. 4. Recognizable here inside the wall part 35 with the tab 36 extending therefrom, further the housing projection 40 and a further housing projection 48, the recess 47 and ribs 49 and 50 not previously mentioned for guiding and fixing the position of a connecting lug. Otherwise, the oblique projections 42 to 45, the meaning of which has already been explained, can also be seen in this sectional illustration.
  • FIG. 7 A section VII-VII, the course of which is indicated in FIG. 5, is illustrated in FIG. 7.
  • FIG. 8 illustrates a view of the insulating material housing 34 that is made in the opposite direction to the sectional view just mentioned, that is to say a side view of the illustration in FIG. 5.
  • the fastening tabs 53 and 54 can be seen from their other side, and the wall part again for the rest 35 and the mutually bendable tabs 36 and 37.
  • FIG. 9 shows an opposite view (view A according to arrow A in FIG. 6), which requires no further explanation, except for the reference to the numbered recesses 46 and 47.
  • An insulating material housing such as the one just described (34) can accommodate two connection lugs according to FIG. 1, and, as already said, in the manner in which this can be seen from FIGS. 2 and 3a to 3d.
  • FIGS. 10 to 12 A differently designed insulating material housing 55 is shown in FIGS. 10 to 12.
  • this first has a box-shaped area 56, from which a multi-channel connecting piece 57 now emanates.
  • This multi-channel connecting piece 57 contains three channels 58 to 60 which are closed off on the side, which in turn can be seen from FIG. 10 and the sectional view in FIG. 11. It is essential here that each of the channels 58 to 60 has a raised wall 61, from each of which a tab 62 (see FIG. 11) extends.
  • This particular area within each of the channels 58 through 60 is shown again on an enlarged scale in FIG.
  • this tab 62 also corresponds in terms of its design and position to those tabs as have been shown in the exemplary embodiments explained above, and it also has the same task: namely to latch a connecting lug not indicated in these representations and to hold it in place Fix location.
  • ribs 64 and housing projections 65 also cooperate.
  • Introduction and fixation of terminal lugs which can practically correspond to those shown in FIG. 1, require no further explanation. All that is said is that instead of a paired arrangement of terminal lugs, only one terminal lug can be arranged in this insulating material housing 55 in each of the channels 58 to 60 mentioned.
  • this insulating material housing 55 is also provided with fastening means 66 and 67 in the form of molded ears and threaded bushings contained therein.
  • the paired arrangement of connecting lugs can also be realized with appropriate design of the wall parts and paired tabs 62.
  • FIGS. 14, 15, 16 and 17 illustrate an idiosyncratic modification with regard to the design of insulating material housings of contact apparatuses of the type in question.
  • FIG. 14 shows a rear wall, broken out in the middle, of a slide-in unit for a control cabinet or the like, insulating housing for contact apparatuses being molded on at the same time.
  • the insulating material housings for the individual contact devices are therefore ultimately a material component of the slide-in rear wall, designated by the way with the number 68. It can be seen that three channel-like housing areas 69, 70 and 71 are integrally formed on the side pointing to the right in FIG. 14, and also further channel-like housing areas 72, 73 and 74.
  • the sectional views in FIGS. 15 and 16, the section of which can be seen from FIG. 14, illustrate the design of the channel-like housing areas 69, 70 and 71, the sectional view in FIG. 17, however, shows a section through the channel-like housing area 72 on the underside of the insert rear wall 68.
  • the last-mentioned FIG. 17 is shown on an enlarged scale compared to the representations according to FIGS.
  • FIGS. 14 to 17 inclusive The housing areas 85 and 86 serving the contact apparatus can be seen here, which, to say it again, are part of the insert rear walls 83 and 84 made of insulating material.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Insulated Conductors (AREA)
  • Multi-Conductor Connections (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Communication Cables (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP84103989A 1983-04-12 1984-04-10 Kontaktapparat zur Kontaktierung elektrischer Kabelleiter mit Stromsammelschienen Expired EP0125489B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103989T ATE27385T1 (de) 1983-04-12 1984-04-10 Kontaktapparat zur kontaktierung elektrischer kabelleiter mit stromsammelschienen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833313193 DE3313193A1 (de) 1983-04-12 1983-04-12 Kontaktapparat zur kontaktierung elektrischer kabelleiter mit stromsammelschienen
DE3313193 1983-04-12

Publications (3)

Publication Number Publication Date
EP0125489A2 EP0125489A2 (de) 1984-11-21
EP0125489A3 EP0125489A3 (en) 1985-07-10
EP0125489B1 true EP0125489B1 (de) 1987-05-20

Family

ID=6196149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103989A Expired EP0125489B1 (de) 1983-04-12 1984-04-10 Kontaktapparat zur Kontaktierung elektrischer Kabelleiter mit Stromsammelschienen

Country Status (5)

Country Link
EP (1) EP0125489B1 (da)
AT (1) ATE27385T1 (da)
DE (2) DE3313193A1 (da)
DK (1) DK131984A (da)
NO (1) NO159047C (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729454A1 (de) * 1987-09-03 1989-03-16 Ritter Starkstrom Gmbh & Co Kontaktelement fuer den leistungsanschluss eines schaltschrankeinschubs einer niederspannungsschaltanlage

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584540B1 (fr) * 1985-07-04 1987-09-25 Labinal Perfectionnements au montage des organes de connexions electriques
US4714437A (en) * 1987-01-20 1987-12-22 Ford Motor Company Electrical connector
AU606163B2 (en) * 1987-06-05 1991-01-31 Krone Gmbh Electrical connector
DE3731625A1 (de) * 1987-09-19 1989-03-30 Asea Brown Boveri Aus flachmaterial gebildetes kontaktstueck

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149899A (en) * 1962-04-16 1964-09-22 United Carr Inc Electrical contact element
FR92979E (fr) * 1966-05-27 1969-01-24 Proner Sa Ets Protecteur isolant pour clips de connexion électrique.
DE2105842C3 (de) * 1971-01-25 1975-07-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Steckverbindung für Starkstromanlagen
US3686617A (en) * 1971-03-30 1972-08-22 Ibm Multi-contact electrical connector assembly
US4025747A (en) * 1975-09-11 1977-05-24 Westinghouse Electric Corporation Circuit interrupter stab assembly with self-aligning clip type contact
JPS52134681U (da) * 1976-04-05 1977-10-13
JPS59145B2 (ja) * 1978-06-02 1984-01-05 日産自動車株式会社 自動車用電気機器の通電構造
DE2854678C2 (de) * 1978-12-18 1984-10-25 Brown, Boveri & Cie Ag, 6800 Mannheim Steckvorrichtung zur Kontaktierung elektrischer Kabelleiter mit Sammelschienen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729454A1 (de) * 1987-09-03 1989-03-16 Ritter Starkstrom Gmbh & Co Kontaktelement fuer den leistungsanschluss eines schaltschrankeinschubs einer niederspannungsschaltanlage

Also Published As

Publication number Publication date
ATE27385T1 (de) 1987-06-15
DK131984A (da) 1984-10-13
EP0125489A3 (en) 1985-07-10
DE3313193A1 (de) 1984-10-18
NO159047B (no) 1988-08-15
NO841444L (no) 1984-10-15
NO159047C (no) 1988-11-23
DK131984D0 (da) 1984-02-29
EP0125489A2 (de) 1984-11-21
DE3463874D1 (en) 1987-06-25

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