NO128840B - - Google Patents

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Publication number
NO128840B
NO128840B NO03489/70A NO348970A NO128840B NO 128840 B NO128840 B NO 128840B NO 03489/70 A NO03489/70 A NO 03489/70A NO 348970 A NO348970 A NO 348970A NO 128840 B NO128840 B NO 128840B
Authority
NO
Norway
Prior art keywords
clamp
units
head
nut
bolt
Prior art date
Application number
NO03489/70A
Other languages
Norwegian (no)
Inventor
J Sievert
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of NO128840B publication Critical patent/NO128840B/no

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/10Electrically-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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18Electrically-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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20Electrically-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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/05Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/50Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • H01R4/5025Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone combined with a threaded ferrule operating in a direction parallel to the conductor

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Cable Accessories (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Koblingsklemme til elektrisk forbindelse mellom tilgrensende ender av elektriske kabler, særlig i underjordiske forsyningsnett. Connection clamp for electrical connection between adjacent ends of electrical cables, particularly in underground supply networks.

Den foreliggende oppfinnelse angår en koblingsklemme til elektrisk forbindelse mellom tilgrensende ender av elektriske kabler, særlig i underjordiske forsyningsnett. The present invention relates to a connection clamp for electrical connection between adjacent ends of electrical cables, particularly in underground supply networks.

Der er kjent isolerte koblingskiemmer med flere uttak til å skaffe forbindelse på sekundær- eller 'lavspenningssiden mellom en tilforselsledning og et antall lokale installasjoner. Ubenyttede uttak forblir tilgjengelige for senere forbindelse til nye installasjoner. Da de må være grundig isolert når de ikke er i bruk, må man forst fjerne isolasjonen når der onskes en ny forbindelse. Da alle lederne har fast stilling, må tilslutningskabler forst fores til riktig stilling for å gjore det mulig å danne forbindelsen. Bare et fast antall forbindelser er mulige, og der blir derfor gjerne anord- There are known insulated switchgears with several outlets for providing a connection on the secondary or low voltage side between a supply line and a number of local installations. Unused outlets remain available for later connection to new installations. As they must be thoroughly insulated when not in use, the insulation must first be removed when a new connection is desired. As all the conductors have a fixed position, connection cables must first be routed to the correct position to make it possible to form the connection. Only a fixed number of connections are possible, and there are therefore often devices

net overskytende uttak for eventuell senere bruk. net surplus outlet for possible later use.

Ved den foreliggende oppfinnelse er de forannevnte ulemper eliminert, idet oppfinnelsen skaffer en sammensatt koblingsklemme som er istand til å oppta et hvilket som helst onsket antall uttak innen anleggets stromforingskapasitet. Dette oppnås ifolge oppfinnelsen ved en koblingsklemme av den innledningsvis anforte art, og det karakte-ristike ved koblingskiemmen ifolge oppfinnelsen er' at den omfatter stort sett T-formede ledende enheter som hver er innrettet til å oppta en kabelende i sin stamme og har en langsgående åpning i sitt hode, og som sammenholdes innbyrdes i gjensidig elektrisk kontakt ved hjelp av en gjennomgående bolt som er fort gjennom de nevnte åpninger, og at hver enhet er omgitt av en kappe av isolerende elastomer som levner T-hodets endeflater utildekket, men i fri tilstand av enheten rager utenfor disse. Hver enhet får dermed sin egen isolasjon og blir lettvint og raskt tilfoyet koblingsklemmen uten å behove forut-gående fjernelse av isolasjon. Enhetene kan plaseres i hvilken som helst onsket retning. Da enhetene bare tilfoyes efter behov, be-hoves der ingen overskytende uttak ved koblingsklemmen. With the present invention, the above-mentioned disadvantages are eliminated, as the invention provides a composite connection terminal which is able to accommodate any desired number of outlets within the plant's current carrying capacity. This is achieved according to the invention by a connection clamp of the type mentioned at the outset, and the characteristic feature of the connection terminal according to the invention is that it comprises mostly T-shaped conductive units, each of which is arranged to receive a cable end in its trunk and has a longitudinal opening in its head, and which are held together in mutual electrical contact by means of a through-bolt which is fast through the said openings, and that each unit is surrounded by a jacket of insulating elastomer which leaves the end surfaces of the T-head uncovered, but in free state of the unit extends beyond these. Each unit thus gets its own insulation and is easily and quickly added to the connection terminal without the need to remove the insulation beforehand. The units can be placed in any desired direction. As the units are only added as needed, there is no need for excess outlets at the connection terminal.

Tegningen anskueliggjør en for tiden foretrukken utforelses-form for oppfinnelsen. Fig. 1 viser grunnriss og delvis lengdesnitt av en sammensatt koblingsklemme med tre uttak. Fig. 2 viser snitt stort sett efter linjen 2 - 2 på fig. 1, og fig. 3 viser snitt stort sett efter linjen 3 - 3 på fig. 1. The drawing illustrates a currently preferred embodiment of the invention. Fig. 1 shows a plan view and partial longitudinal section of a composite terminal block with three outlets. Fig. 2 shows a section largely along the line 2 - 2 in fig. 1, and fig. 3 shows a section largely along the line 3 - 3 in fig. 1.

Koblingsklemmen 10 på fig. 1 vil ses å bestå av tre "T-klem-me"-enheter 11, 12, 13 sammenholdt av en bolt 14 med mutter 15. For anskuelig hets skyld er de tre enheter forsynt med hver sin forskjellige ansats for tilslutning til de respektive kabler, skjont det sier seg selv at man like godt kan bruke en hvilken som helst annen kombina-sjon av slike elementer. Det vil også forstås at det er mulig ved bruk av en bolt av passende lengde å kombinere et hvilket som helst antall enkeltklemmer. The connecting terminal 10 in fig. 1 will be seen to consist of three "T-clamp" units 11, 12, 13 held together by a bolt 14 with a nut 15. For the sake of clarity, the three units are each provided with a different attachment for connection to the respective cables , although it goes without saying that you can just as well use any other combination of such elements. It will also be understood that it is possible by the use of a bolt of suitable length to combine any number of individual clamps.

So.-n vist mer spesielt på fig. 2 omfatter klemmeenheten 11 et ringformet parti eller hode 16 med planparallelle endeflater og en tappformet radial ansats eller stammel7 og er kledt med et isolerende belegg l8 av gummi eller lignende. I fri tilstand rager gummibelegget utenfor de flate endeflater av det ringformede parti 16 et stykke .tilstrekkelig til å gi vanntett forbindelse når to tilstøtende klemmeenheter trekkes til kontakt metall mot metall ved hjelp av bolten l/J. So.-n shown more particularly in fig. 2, the clamping unit 11 comprises an annular part or head 16 with plane-parallel end surfaces and a pin-shaped radial shoulder or stem 7 and is covered with an insulating coating 18 of rubber or the like. In the free state, the rubber coating protrudes beyond the flat end surfaces of the annular portion 16 a distance sufficient to provide a watertight connection when two adjacent clamping units are pulled into metal-to-metal contact by means of the bolt l/J.

og mutteren 15. and the nut 15.

Full ledende kontakt mellom klemmeenhetene kan skaffes ved direkte flatekontakt som vist mellom klemmeenhetene 12 og 13. Den enkle utforelse som er vist der, er den billigste og er fullt tilstrekkelig når et bestemt antall klemmeenheter skal kombineres permanent. Full conductive contact between the terminal units can be obtained by direct surface contact as shown between the terminal units 12 and 13. The simple design shown there is the cheapest and is fully sufficient when a certain number of terminal units are to be permanently combined.

I en alternativ utforelse som er vist ved forbindelsen mellom klemmeenhetene 11 og 12 på fig. 1 og i snitt på fig. 3, benyttes en dobbeltkonisk nippel 19 som passer inn i motsvarende koniske, ringformede seter 20, 21 i de mot hinannen vendende endeflater av de to enheter. Så snart klemmeenhetene er presset sammen, blir nippelen 19 permanent fastholdt eller sveiset til ringpartiene for å danne en varig skjot. Bolten 14 kan da trekkes ut uten at klemmeenhetene ad-skilles, noe som letter innforing av en lengre bolt og tilfoyelse av ytterligere enheter efter onske. In an alternative embodiment which is shown at the connection between the clamping units 11 and 12 in fig. 1 and in section in fig. 3, a double conical nipple 19 is used which fits into corresponding conical, ring-shaped seats 20, 21 in the facing end surfaces of the two units. Once the clamping units are pressed together, the nipple 19 is permanently secured or welded to the ring portions to form a permanent joint. The bolt 14 can then be pulled out without the clamping units being separated, which facilitates the insertion of a longer bolt and the addition of further units as desired.

Tappen 17 er på fig. 1 og 2 vist i enkel utforelse med et rorformet endeparti til å danne varig kontakt med en naken kabelende ved mekanisk påkrympning. Isolasjonen l8 dekker i dette tilfelle bare den dverste del av klemmen. Hos klemmeenheten 12 strekker den elastiske kledning l8<»> se^ foruten over det ringformede hode 16'også over hele lengden av tappen 17<»> som har en avsmalnende kontakthylse-lignende hulning til å oppta en ikke vist konisk endeplugg. En kile 22 som passer inn i et hull i sideveggen, holdes inntrykket av den elastiske kledning l8<»> for å låse pluggen, som forutsettes å ha et tilsvarende spor. Den isolerende kledning l8<»> strekker seg litt utenfor den åpne ende av hylsen 17' og er innsnevret for å skaffe en stram tetning rundt tilslutningspluggen eller kabelen. Ansatsen 17♦' hos klemmeenheten 13 danner en halvsylinder som passer til en motsvarende halvsylindrisk, ikke vist kabelsko som holdes i tett kontakt med den av en skrue 23. The pin 17 is in fig. 1 and 2 shown in a simple embodiment with a tube-shaped end portion to form permanent contact with a bare cable end by mechanical crimping. The insulation l8 in this case only covers the thickest part of the clamp. In the clamping unit 12, the elastic lining 18<»> extends, in addition to the annular head 16', also over the entire length of the pin 17<»> which has a tapered contact sleeve-like hollow to receive a conical end plug, not shown. A wedge 22 which fits into a hole in the side wall is kept impressed by the elastic lining 18<»> to lock the plug, which is assumed to have a corresponding groove. The insulating sheath 18<»> extends slightly beyond the open end of the sleeve 17' and is constricted to provide a tight seal around the connecting plug or cable. The shoulder 17♦' of the clamping unit 13 forms a half-cylinder which fits a corresponding half-cylindrical cable lug, not shown, which is held in close contact with it by a screw 23.

Spesielt i tilfelle av de viste klemmeenheter 11 og 13 vil det forstås at ansatsen og kabelen skal forsynes med ytterligere tetningsmidler, isolerende og beskyttende kledninger med videre i kontaktområdet, f.eks. ved omvikling av klebestrimler, tildekning med elastisk slange eller lignende. Especially in the case of the clamp units 11 and 13 shown, it will be understood that the attachment and the cable must be provided with additional sealants, insulating and protective coverings etc. in the contact area, e.g. by wrapping adhesive strips, covering with elastic hose or the like.

Hodet 24 av bolten 14 er permanent dekket med en isolerende hette 25 som er fastklebet til det, og som i likhet med kledningen l8 strekker seg litt forbi hodets flate anleggsflate, så den under sammentrykning danner en tett forbindelse med kledningen. Mutteren 15 er likeledes dekket med en tettsittende isolerende kledning 26. For å tillate stramning av mutteren 15 leveres kappen 26 som en særskilt komponent som smekkes inn på mutteren efter at koblingsklemmen forovrig er saramenfoyet. I dette oyeraed griper en innvendig ribbe 27 inn i et orakretsspor 28 i mutteren. The head 24 of the bolt 14 is permanently covered with an insulating cap 25 which is glued to it, and which, like the cladding 18, extends slightly beyond the flat contact surface of the head, so that under compression it forms a tight connection with the cladding. The nut 15 is likewise covered with a tight-fitting insulating lining 26. In order to allow tightening of the nut 15, the cover 26 is supplied as a separate component which is snapped onto the nut after the coupling clamp is otherwise saramenfoyed. In this oyered, an internal rib 27 engages in a circular groove 28 in the nut.

I et typisk eksempel har det ringformede parti 16 en ytterdiameter på 31,6 mm, en innerdiameter på 16,5 mm og en lengde av cm mellom endeflatene. Ansatsen 17 strekker seg i alt 8,9 cm fra midten av ringen og har en ytterdiameter på 25,4 naa* Klemmeenhetene er mon-tert på en bolt med diameter 15,4 rm' Alle metalliske deler er av aluminium. Den isolerende kledning har en minimumstykkelse av ca. 4 mm og béstår av en hard kunstgummi, fortrinnsvis etylen-propylen-terpolymer, som har en Shore A-verdi på ca. 60 og kan fås i handelen under varenavnet "Nordel<1*>. Polymerbelegget strekker seg omtrent 0,8 mm utenfor den metalliske berøringsflate på hvert sted og er svakt avfaset ved kantene for å tillate full kontakt metall mot metall. In a typical example, the annular portion 16 has an outer diameter of 31.6 mm, an inner diameter of 16.5 mm and a length of cm between the end surfaces. The attachment 17 extends a total of 8.9 cm from the center of the ring and has an outer diameter of 25.4 mm* The clamping units are mounted on a bolt with a diameter of 15.4 mm' All metallic parts are made of aluminium. The insulating cladding has a minimum thickness of approx. 4 mm and consists of a hard synthetic rubber, preferably ethylene-propylene terpolymer, which has a Shore A value of approx. 60 and is commercially available under the trade name "Nordel<1*>. The polymer coating extends approximately 0.8 mm beyond the metallic contact surface at each location and is slightly chamfered at the edges to allow full metal-to-metal contact.

Claims (3)

1. Koblingsklemme til elektrisk forbindelse mellom tilgrensende ender av elektriske kabler, særlig i underjordiske forsyningsnett, karakterisert ved at den omfatter stort sett T-formede ledende enheter (11, 12, 13) som hver er innrettet til å oppta en kabelende i sin stamme (17, 17', 17") og har en langsgående åpning i sitt hode (l6, l6')> og som sammenholdes innbyrdes.i gjensidig elektrisk kontakt ved hjelp av en gjennomgående bolt (14) som er fort gjennom de nevnte åpninger, og at hver enhet (11, 12, 13) er omgitt av en kappe (l8, l8<»>) av isolerende elastomer som levner T-hodets endeflater utildekket, men i fri tilstand av. enheten rager utenfor disse. 1. Connecting clamp for electrical connection between adjacent ends of electrical cables, particularly in underground supply networks, characterized in that it comprises mostly T-shaped conductive units (11, 12, 13) each of which is adapted to receive a cable end in its trunk ( 17, 17', 17") and has a longitudinal opening in its head (l6, l6')> and which are held together in mutual electrical contact by means of a through-bolt (14) which is fast through the said openings, and that each unit (11, 12, 13) is surrounded by a sheath (l8, l8<»>) of insulating elastomer which leaves the end surfaces of the T-head uncovered, but in the free state of the unit protrudes outside these. 2. Koblingsklemme som angitt i krav 1, karakterisert ved at de nevnte åpninger ved tilstotende ender av enheter danner koniske seter (20, 21) som samvirker med en motsvarende dobbeltkonisk skjotenippel (19).2. Coupling clamp as specified in claim 1, characterized in that the said openings at adjacent ends of units form conical seats (20, 21) which interact with a corresponding double-conical coupling nipple (19). 3. Koblingsklemme som angitt i krav 1 eller 2, karakterisert ved at bolthode (24) og mutter (15) er dekket av hver sin isolerende hette (25, 26) av elastomer som lukker mot kappen (l8) på de respektive tilgrensende klemmeenheter (11, 13). 4« Koblingsklemme som angitt i krav 3, karakterisert ved at mutteren (15) har et omkretsspor (28) og den tilhorende hette (26) har en motsvarende innvendig ribbe (27).3. Coupling clamp as specified in claim 1 or 2, characterized in that the bolt head (24) and nut (15) are each covered by an insulating cap (25, 26) made of elastomer which closes against the cover (l8) of the respective adjacent clamp units ( 11, 13). 4" Coupling clamp as stated in claim 3, characterized in that the nut (15) has a circumferential groove (28) and the associated cap (26) has a corresponding internal rib (27).
NO03489/70A 1969-09-23 1970-09-14 NO128840B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86022869A 1969-09-23 1969-09-23

Publications (1)

Publication Number Publication Date
NO128840B true NO128840B (en) 1974-01-14

Family

ID=25332761

Family Applications (1)

Application Number Title Priority Date Filing Date
NO03489/70A NO128840B (en) 1969-09-23 1970-09-14

Country Status (7)

Country Link
US (1) US3585566A (en)
CH (1) CH526863A (en)
FR (1) FR2062463A5 (en)
GB (1) GB1259919A (en)
NO (1) NO128840B (en)
SE (1) SE362169B (en)
ZA (1) ZA706460B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813635A (en) * 1970-10-13 1974-05-28 Itt Terminal connector
FR2066738A5 (en) * 1970-10-29 1971-08-06 Bernard Henri
US3931456A (en) * 1974-05-15 1976-01-06 The United States Of America As Represented By The United States National Aeronautics And Space Administration Office Of General Counsel-Code Gp High voltage distributor
US4241975A (en) * 1979-03-22 1980-12-30 International Telephone And Telegraph Corporation Cast bus bar connector having hollow cross-sectional area
US4382651A (en) * 1980-07-18 1983-05-10 Homac Mfg. Company Transformer bar connector
DE3146913C2 (en) * 1981-11-26 1983-10-06 C.A. Weidmueller Gmbh & Co, 4930 Detmold Cross connector
WO2006108445A1 (en) * 2005-04-14 2006-10-19 Fci Electrique France Connecting device for electrically connecting at least three electrical conductors, and kit comprising such devices
DE102009046150A1 (en) * 2009-10-29 2011-05-05 Robert Bosch Gmbh Contact testing device for starters

Also Published As

Publication number Publication date
CH526863A (en) 1972-08-15
DE2047823B2 (en) 1972-08-24
ZA706460B (en) 1971-05-27
DE2047823A1 (en) 1971-04-22
US3585566A (en) 1971-06-15
SE362169B (en) 1973-11-26
GB1259919A (en) 1972-01-12
FR2062463A5 (en) 1971-06-25

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