SE537895C2 - Electrical connector for connection of ground conductor protective earth - Google Patents
Electrical connector for connection of ground conductor protective earth Download PDFInfo
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- SE537895C2 SE537895C2 SE1450337A SE1450337A SE537895C2 SE 537895 C2 SE537895 C2 SE 537895C2 SE 1450337 A SE1450337 A SE 1450337A SE 1450337 A SE1450337 A SE 1450337A SE 537895 C2 SE537895 C2 SE 537895C2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual 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
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—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 characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Electric Cable Installation (AREA)
Abstract
537 89 SAMMANDRAG Ett elektriskt anslutningsdon (300) for anslutning av en jordledare (320) till en anslutningspunkt hos en skyddsjord, varvid anslutningsdonet innefattar ett anslutningsorgan (301) anordnat att anslutas till jordledaren och ett med anslutningsorganet forknippat elektriskt ledande organ (302) anordnat att uppratta elektrisk kontakt mellan en till anslutningsorganet ansluten jordledare och anslutningspunkten. Det elektriskt ledande organet är utstrackbart och innefattar vid en forsta ande medel (303) far att mekaniskt och elektriskt fast ansluta anslutningsdonet till anslutningspunkten och är vid en andra andemekanisktochelektrisktfastanslutettill anslutningsorganet. Anslutningsdonet innefattar ett fastorgan (311) for att losgorbart fixera anslutningsorganet relativt anslutningspunkten, sa att anslutningsorganet, da det är fixerat relativt anslutningspunkten och da en dragkraft appliceras pa en till anslutningsorganet ansluten jordledare, är anordnat att losgoras fran fixeringen relativt anslutningspunkten sa att det elektriskt ledande organet stracks ut under det att jordledaren behaller elektrisk kontakt med skyddsjorden. 537 89 SUMMARY An electrical connector (300) for connecting a ground conductor (320) to a connection point of a protective earth, the connector comprising a connecting means (301) arranged to be connected to the ground conductor and an electrically conductive means (302) connected to the connecting means arranged to establish electrical contact between an earth conductor connected to the connecting means and the connection point. The electrically conductive means is extensible and comprises at a first means (303) a father for mechanically and electrically fixedly connecting the connector to the connection point and is at a second spirit mechanically and electrically fixedly connected to the connecting means. The connector comprises a fixed means (311) for releasably fixing the connecting means relative to the connection point, so that the connecting means, when fixed relative to the connection point and when a traction force is applied to a ground conductor connected to the connecting means, is arranged to be detached from the fixation relative to the connection point. the body is stretched while the earth conductor maintains electrical contact with the protective earth.
Description
Foreliggande uppfinning avser ett elektriskt anslutningsdon for fast anslutning av minst en jordledare till en anslutningspunkt hos en skyddsjord enligt ingressen till patentkrav 1. The present invention relates to an electrical connector for fixed connection of at least one earth conductor to a connection point of a protective earth according to the preamble of claim 1.
UPPFINNINGENS BAKGRUND OCH KAND TEKNIK I fasta elektriska anslutningar dar en kabel med ett flertal ledare, innefattande fasledare, eventuell nolledare och jordledare, ska anslutas till till exempel skenor i en anlaggning i form av en elcentral, ett kabelskap, ett stallverk eller dylikt, ska anslutningen utformas sa att jordledaren lossnar sist om kabeln rycks eller slits ut. Syftet med detta är att ingen ledande del i anlaggningen ska bli ofrivilligt spanningssatt, vilket aventyrar sakerheten i anlaggningen. For att sakerstalla att jordledaren lossnar sist fran anlaggningen brukar denna goras langre an de ovriga i kabeln ingaende ledarna. Detta leder till extra arbete vid installationen och det kraver aven extra utrymme i anlaggningen. Det är aven latt att forbise att Ora jordledaren langre an ovriga ledare, vilket leder till sakerhetsprobelm med anlaggningen. Det är darfor onskvart att komma runt dessa nackdelar. BACKGROUND OF THE INVENTION AND KNOWLEDGE TECHNOLOGY In fixed electrical connections where a cable with a plurality of conductors, including phase conductors, possibly neutral conductors and earth conductors, must be connected to, for example, rails in a system in the form of a power station, cable cabinet, stable or the like. is designed so that the earth conductor comes off last if the cable is pulled or worn out. The purpose of this is that no leading part of the plant should be involuntarily energized, which jeopardizes the safety of the plant. In order to ensure that the earth conductor detaches last from the installation, this is usually made longer than the other conductors in the cable. This leads to extra work during installation and it also requires extra space in the facility. It is also easy to overlook the fact that the Ora earth conductor is longer than other conductors, which leads to a safety problem with the facility. It is therefore unfortunate to get around these disadvantages.
SAMMANFATTNING AV UPPFINNINGEN Ett syfte med foreliggande uppfinning är att astadkomma ett elektriskt anslutningsdon med hjalp av vilket ovanstbende nackdelar kan undvikas eller atminstone minskas. Ett sadant anslutningsdon astadkommes genom det inledningsvis definierade anslutningsdonet, vilket kannetecknas av att det elektriskt ledande organet ar utstrackbart och vid en forsta ande innefattar medel for att mekaniskt och elektriskt fast ansluta anslutningsdonet till namnda anslutningspunkt och vid en andra 1 537 89 ande är mekaniskt och elektriskt fast anslutet till anslutningsorganet, och att anslutningsdonet vidare innefattar minst ett fastorgan for att losgorbart fixera det minst ena anslutningsorganet relativt namnda anslutningspunkt, sa att anslutningsorganet, da det är fixerat relativt skyddsjorden och da en dragkraft appliceras pa en till anslutningsorganet ansluten jordledare, är anordnat att losgoras fran fixeringen relativt anslutningspunkten sa att det elektriskt ledande organet stracks ut under det att jordledaren behaller elektrisk kontakt med skyddsjorden. SUMMARY OF THE INVENTION An object of the present invention is to provide an electrical connector by means of which the above disadvantages can be avoided or at least reduced. Such a connector is provided by the initially defined connector, which is characterized in that the electrically conductive means is extensible and at a first end comprises means for mechanically and electrically permanently connecting the connector to said connection point and at a second end is mechanically and electrically fixedly connected to the connecting means, and that the connecting means further comprises at least one fixed means for releasably fixing the at least one connecting means relative to said connection point, so that the connecting means, when fixed relative to the protective earth and when a traction force is applied to a ground conductor connected to the connecting means, is arranged detached from the fixation relative to the connection point said that the electrically conductive member is stretched out while the earth conductor maintains electrical contact with the protective earth.
I ett elektriskt anslutningsdon enligt uppfinningen ar forlangningen av jordledaren alltsa inbyggd i form av det utstrackbara elektriskt ledande organet. Vid anslutning av de i en kabel ingaende ledarna till, exempelvis, fasskenor respektive jordskenan hos en anlaggning kan darmed jordledaren goras lika kort som de andra ledarna. For att ansluta fasledare och eventuell separat nolledare till respektive skena anvands konventionella anslutningsklammor utan inbyggt utstrackbart ledande organ. Vid ett ryck i kabeln med tillracklig dragkraft lossnar fasledarna fran sina respektive anslutningspunkter pa fasskenorna och den elektriska kontakten mellan fasskenor och fasledare bryts, samtidigt som anslutningsorganet lossnar fran anslutningspunkten hos skyddsjorden. Jordledaren behaller dock elektrisk kontakt med anslutningspunkten hos den fasta skyddsjorden, eftersom det utstrackbara elektriskt ledande organet stracks ut och darmed sakerstaller att den elektriska kontakten inte bryts mellan jordledaren och skyddsjorden. Forst dá fasledarna lossnat fran sina respektive anslutningar, och anlaggningen alltsa inte langre är spanningssatt, lossnar jordledaren fran anslutningsorganet och jordkretsen bryts. In an electrical connector according to the invention, the extension of the earth conductor is thus built in in the form of the extendable electrically conductive member. When connecting the conductors entering a cable to, for example, phase rails and the earth rail of a plant, the earth conductor can thus be made as short as the other conductors. To connect phase conductors and any separate neutral conductors to each rail, conventional connection terminals without a built-in extensible conductive member are used. In the event of a jerk in the cable with sufficient traction, the phase conductors become detached from their respective connection points on the phase rails and the electrical contact between the phase rails and the phase conductor is broken, at the same time as the connecting means detaches from the connection point of the protective earth. However, the earth conductor maintains electrical contact with the connection point of the fixed protective earth, since the extendable electrically conductive member is stretched out and thus ensures that the electrical contact is not broken between the earth conductor and the protective earth. Only when the phase conductors have become detached from their respective connections, and the system is thus no longer energized, does the earth conductor become detached from the connection means and the earth circuit is broken.
Tack vare att forlangningen av jordledaren byggs in i anslutningsdonet underlattas arbetet med elektrisk installation 35 samtidigt som sakerheten hojs. Dessutom kan utrymme sparas i anlaggningen, eftersom den inbyggda jordledaren i form av det 2 537 89 utstrackbara elektriskt ledande organet kan goras mindre skrymmande an en forlangd jordledare. Due to the fact that the demand of the earth conductor is built into the connector, the work of electrical installation 35 is facilitated at the same time as the safety is raised. In addition, space can be saved in the plant, since the built-in earth conductor in the form of the extensible electrically conductive member can be made less bulky than a required earth conductor.
Enligt en utforingsform av uppfinningen utgors det elektriskt ledande organet av en jordflata. Jordflatan är stark och samtidigt flexibel och darmed latt att anordna utstrackbar genom till exempel vikning eller rullning. Jordflatan kan foretradesvis vara en kopparflata, vilket ger goda elektriska ledningsegenskaper. Jordflatan kan aven vara en fortennad kopparflata, vilken har god hallbarhet. According to an embodiment of the invention, the electrically conductive member consists of a ground surface. The ground surface is strong and at the same time flexible and thus easy to arrange extensible by, for example, folding or rolling. The ground surface can preferably be a copper surface, which provides good electrical conductivity properties. The earth surface can also be a tinned copper surface, which has good durability.
Enligt en utforingsform av uppfinningen är det elektriskt ledande organet anordnat utstrackbart genom utveckling fran ett hopvikt tillstand till ett utvecklat tillstand. Genom denna utforingsform astadkommes ett enkelt och snabbt satt att stracka ut det elektriskt ledande organet. Alternativt kan det elektriskt ledande organet anordnas utstrackbart genom till exempel hoprullning. According to an embodiment of the invention, the electrically conductive means is arranged extensively by development from a folded state to a developed state. This embodiment provides a simple and quick way to extend the electrically conductive member. Alternatively, the electrically conductive member can be arranged extensively by, for example, rolling up.
Enligt en utforingsform av uppfinningen är det minst ena anslutningsorganet losgorbart fixerat relativt anslutningspunkten genom att det är losgorbart fast vid huvuddelen med hjalp av namnda fastorgan. I denna utforingsform fasts den forsta anden av det elektriskt ledande organet i huvuddelen, som i sin tur fasts vid anslutningspunkten hos den fasta skyddsjorden. Darmed forenklas fastandet av anslutningsdonet. According to an embodiment of the invention, the at least one connecting member is releasably fixed relative to the connection point in that it is releasably fixed to the main part by means of said fixed means. In this embodiment, the first spirit of the electrically conductive member is fixed in the main part, which in turn is fixed at the point of connection of the fixed protective earth. This simplifies the fastening of the connector.
Enligtenutforingsformavuppfinningeninnefattar anslutningsdonet en huvuddel anordnad att fast ansluta anslutningsdonet till anslutningspunkten, varvid det elektriskt ledande organet loper mellan huvuddelen och respektive anslutningsorgan. En fOrenklad anslutning till skyddsjorden kan darmed astadkommas. According to the embodiment of the invention, the connector comprises a main part arranged to permanently connect the connector to the connection point, the electrically conductive member running between the main part and the respective connection means. A simplified connection to the protective earth can thus be achieved.
Enligt ytterligare en utforingsform av uppfinningen är det minst ena anslutningsorganet losgorbart fixerat relativt skyddsjorden genom att det ar losgorbart fast vid huvuddelen med hjalp av namnda fastorgan. Pa sa vis fasts anslutningsorganet eller 3 537 89 anslutningsorganen losgorbart vid skyddsjordens anslutningspunkt via huvuddelen. Vid ett tillrackligt kraftigt ryck i kabeln dar jordledaren ingar lossnar anslutningsorganet fran huvuddelen, som sitter kvar vid den fasta skyddsjorden. Detta forenklar installationen i anlaggningar s6som kabelskap, elcentraler och stallverk, eftersom anslutningsdonet kan behandlas som en enhet. According to a further embodiment of the invention, the at least one connecting member is releasably fixed relative to the protective earth in that it is releasably fixed to the main part by means of said fixed means. In this way, the connecting member or the connecting members are releasably attached to the connection point of the protective earth via the main part. In the event of a sufficiently strong pull in the cable where the earth conductor engages, the connecting member detaches from the main part, which remains at the fixed protective earth. This simplifies installation in systems such as cable cabinets, power stations and stables, as the connector can be treated as a unit.
Enligt en utforingsform av uppfinningen är huvuddelen i form av en jordskena. Genom att utforma huvuddelen som en jordskena kan flera anslutningsorgan rymmas bredvid varandra i ett och samma anslutningsdon. Denna typ av anslutningsdon är dessutom lampat for att permanent installeras i en befintlig anlaggning med fasskenor. According to an embodiment of the invention, the main part is in the form of a ground rail. By designing the main part as a ground rail, several connecting means can be accommodated next to each other in one and the same connecting device. This type of connector is also lighted to be permanently installed in an existing system with phase rails.
Enligt en utforingsform av uppfinningen innefattar huvuddelen minst ett urtag for mottagande av det minst ena anslutningsorganet. Anslutningsdonet kan darmed goras kompakt och utrymmeseffektivt. According to an embodiment of the invention, the main part comprises at least one recess for receiving the at least one connecting member. The connector can thus be made compact and space-efficient.
Enligt en utforingsform av uppfinningen innefattar anslutningsdonet minst tva anslutningsorgan. I denna utforingsform erbjuder anslutningsdonet ett utrymmeseffektivt satt att ansluta tva eller fler jordledare till fasta anslutningspunkter hos en skyddsjord. According to an embodiment of the invention, the connector comprises at least two connecting means. In this embodiment, the connector offers a space-efficient means of connecting two or more earth conductors to fixed connection points of a protective earth.
Installationen forenklas dessutom i jamforelse med att separata anslutningsdon anvands for varje jordledare. Foretradesvis innefattar anslutningsdonet minst fyra anslutningsorgan, annu hellre minst sex anslutningsorgan. The installation is also simplified in comparison with the use of separate connectors for each earth conductor. Preferably, the connector comprises at least four connectors, more preferably at least six connectors.
KORT BESKRIVNING AV RITNINGARNA Uppfinningen kommer nu att beskrivas med hanvisning till de bifogade ritningarna, dar Fig. 1visar ett anslutningsdon enligt en forsta utforingsform av uppfinningen, 4 537 89 Fig. 2visar anslutningsdonet i fig. 1 med utstrackt elektriskt ledande organ, Fig. 3visar en sprangvy av anslutningsdonet i fig. 1, Fig. 4a-b visar ett anslutningsdon enligt en andra utforingsform av uppfinningen, och Fig. visar ett anslutningsdon enligt en tredje utforingsform av uppfinningen. BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described with reference to the accompanying drawings, in which Fig. 1 shows a connector according to a first embodiment of the invention, Fig. 2 shows the connector in Fig. 1 with extended electrically conductive means, Fig. 3 shows a Fig. 4a-b shows a connector according to a second embodiment of the invention, and Fig. 4 shows a connector according to a third embodiment of the invention.
DETALJERAD BESKRIVNING AV UTFORINGSFORMER AV 15 UPPFINNINGEN Ett anslutningsdon 100 enligt en forsta utforingsform av uppfinningen visas schematiskt i fig. 1-3. Anslutningsdonet 100 innefattar ett anslutningsorgan 101 for anslutning av en jordledare (ej visad) med hjalp av en skruv 105. Anslutningsorganet 101 är fast vid ena anden av en jordflata 102, vilken är anordnad hopvikt i ett urtag 119 hos en huvuddel 103 tillsammans med anslutningsorganet 101. Jordflatans 102 andra ande är fast vid ett bakstycke 104 hos huvuddelen. Huvuddelen 103 är har forsedd med ett skruvhal 106 for fastande av huvuddelen 103 vid en fast anslutningspunkt hos en skyddsjord i form av till exempel en skyddsledarskena (ej visad). Huvuddelen 103 har tva sidostycken 107, 108 vilka avgransar urtaget 119 for jordflatan 102 och anslutningsorganet 101. I sidostyckena 107, 108 finns urtag 109 anordnade, vilka är utformade for ingrepp med fastorgan 111. Fastorganen 111 omsluter den nedre kanten av respektive sidostycke 107, 108 och bildar darunder utskjutande stodytor 111a, vilka hailer anslutningsorganet 101 pa plats i huvuddelen 103. Anslutningsorganet 101, jordflatan 102 och huvuddelen 103 är tillverkade av ett elektriskt ledande material, till exempel koppar. Fastorganen 111 kan daremot vara tillverkade av plast eller nagot annat material. 537 89 Da huvuddelen 103 skruvats fast vid en fast anslutningspunkt hos en skyddsjord monteras en jordledare i anslutningsorganet 101. Jordledaren far darmed genom jordflatan 102 elektrisk kontakt med skyddsjorden. Da en jordledare monterad i anslutningsorganet 101 utsatts for en dragkraft i form av till exempel ett ryck nedat, pressas fastorganen 111 nedat och lossnar fran urtagen 109. Darmed lossnar aven anslutningsorganet 101 fran sin plats i huvuddelen 103 och jordflatan 102 vecklas ut, sasom visas i fig. 2. Forst dá jordflatan 102 är fullt utvecklad lossnar jordledaren fran anslutningsorganet 101. DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION A connector 100 according to a first embodiment of the invention is shown schematically in Figures 1-3. The connector 100 comprises a connecting means 101 for connecting a ground conductor (not shown) by means of a screw 105. The connecting means 101 is fixed to one end of a ground surface 102, which is arranged folded into a recess 119 of a main part 103 together with the connecting means 101 The second end of the ground surface 102 is fixed to a back piece 104 of the main body. The main part 103 is provided with a screw tail 106 for fastening the main part 103 to a fixed connection point of a protective earth in the form of, for example, a protective conductor rail (not shown). The main part 103 has two side pieces 107, 108 which delimit the recess 119 for the ground surface 102 and the connecting member 101. In the side pieces 107, 108 recesses 109 are arranged, which are designed for engagement with fixed means 111. The fixed means 111 enclose the lower edge of the respective side piece 107, 108 and thereby form projecting support surfaces 111a, which hold the connecting means 101 in place in the main part 103. The connecting means 101, the ground surface 102 and the main part 103 are made of an electrically conductive material, for example copper. The fasteners 111, on the other hand, may be made of plastic or some other material. 537 89 When the main part 103 is screwed to a fixed connection point of a protective earth, a ground conductor is mounted in the connecting member 101. The earth conductor thereby makes electrical contact with the protective earth through the ground surface 102. When an earth conductor mounted in the connecting member 101 is subjected to a traction force in the form of, for example, a jerk downwards, the fastening means 111 are pressed downwards and detached from the recesses 109. Thereby the connecting member 101 also detaches from its place in the main part 103. Fig. 2. Only when the earth surface 102 is fully developed does the earth conductor detach from the connecting member 101.
En annan utforingsform av ett anslutningsdon enligt uppfinningen visas schematiskt i fig. 4a—b. I denna utforingsform innefattar anslutningsdonet 200 en huvuddel 203 utformad att fastas vid en fast anslutningspunkt hos en skyddsjord (ej visad), ett anslutningsorgan 201 for anslutning av en ledare (ej visad) med hjalp av en skruv 205, och en jordflata 202 vilken elektriskt forbinder huvuddelen 203 och anslutningsorganet 201. Anslutningsdonet 200 innefattar vidare ett fastorgan 211 for att losgorbart fasta anslutningsorganet 201 vid huvuddelen 203. Another embodiment of a connector according to the invention is shown schematically in Figs. 4a-b. In this embodiment, the connector 200 comprises a main part 203 designed to be fixed at a fixed connection point of a protective earth (not shown), a connecting means 201 for connecting a conductor (not shown) by means of a screw 205, and a ground surface 202 which electrically connects the main portion 203 and the connector 201. The connector 200 further includes a fastener 211 for releasably securing the connector 201 to the main portion 203.
Anslutningsdonet 200 skiljer sig at frail anslutningsdonet 100 enligt den forra utforingsformen genom bland annat huvuddelens 203 utformning. Huvuddelen 203 saknar i denna utforingsform sidovaggar. Ett bakstycke 204 hos huvuddelen 203 är utformat att med en anliggningsyta 204a ligga an mot en anliggningsyta (ej visad) hos anslutningsorganet 201. Anliggningsytan 204a är utformad med en ytstruktur i form av triangulara nedsankningar 215 och anslutningsorganets 201 anliggningsyta är utformad med motsvarande ytstruktur i form av triangulara upphojningar utformade for ingrepp med nedsankningarna 215. Jordflatan 202 är anordnad fritt hangande mellan anslutningsorganet 201 och huvuddelen 203. Fastorganet 211 är anordnat att med en overdel 212 omsluta en overdel 210 hos anslutningsorganet 201 och samtidigt delvis omsluta bakstycket 204 hos huvuddelen 203. 6 537 89 Fastorganet har vidare en underdel 213 med tva sidostycken 213a, 213b. I respektive sidostycke 213a, 213b finns en utskjutande del 214 anordnad, vilken utskjutande del 214 ar utformad for ingrepp med ett urtag 209 anordnat i anslutningsorganet 201. The connector 200 differs from the connector 100 according to the previous embodiment by, among other things, the design of the main part 203. The main part 203 in this embodiment lacks side cradles. A back piece 204 of the main part 203 is designed to abut with an abutment surface 204a against an abutment surface (not shown) of the connecting member 201. The abutment surface 204a is formed with a surface structure in the form of triangular depressions 215 and the abutment surface of the connecting member 201 is formed with a corresponding surface structure of triangular elevations designed to engage the recesses 215. The ground surface 202 is arranged freely suspended between the connecting member 201 and the main part 203. The fixed member 211 is arranged to enclose with an upper part 212 an upper part 210 of the connecting member 201 and at the same time partially enclose the back piece 204 of the main part 203. 537 89 The fixed member further has a lower part 213 with two side pieces 213a, 213b. In the respective side piece 213a, 213b a projecting part 214 is arranged, which projecting part 214 is designed for engagement with a recess 209 arranged in the connecting member 201.
Vid anvandning av anslutningsdonet 200 ansluts en ledare till anslutningsorganet 201, vilket är f5st vid huvuddelen 203 med hjalp av fastorganet 211. Huvuddelen 203 fasts vid en fast anslutningspunkt hos en skyddsjord och ansluts darmed elektriskt till denna. Vid ett eventuellt ryck i ledaren lossnar anslutningsorganet 201 fran huvuddelen 203. Jordflatan 202, som hangt dubbelvikt mellan huvuddelen 203 och anslutningsorganet 201, stracks darmed ut genom att vikas ut till full langd. Den elektriska kontakten mellan ledaren och huvuddelen 203, och darmed aven den fasta anslutningspunkten hos skyddsjorden, bibehalls till dess att ledaren lossnar fran sin plats i anslutningsorganet 201, vilket sker om ledaren utsatts for ytterligare dragkraft efter det att jordflatan 202 vecklats ut till sin fulla langd. When using the connector 200, a conductor is connected to the connector 201, which is fixed to the main part 203 by means of the fixed member 211. The main part 203 is fixed at a fixed connection point of a protective earth and is thus electrically connected thereto. In the event of a jerk in the conductor, the connecting member 201 detaches from the main part 203. The ground surface 202, which hung twice by weight between the main part 203 and the connecting member 201, is thereby stretched out by being folded out to full length. The electrical contact between the conductor and the main part 203, and thus also the fixed connection point of the protective earth, is maintained until the conductor detaches from its place in the connecting member 201, which occurs if the conductor is subjected to additional traction after the ground surface 202 has developed to its full length. .
En annan utforingsform av ett anslutningsdon enligt uppfinningen visas schematiskt i fig. 5. I denna utforingsform innefattar anslutningsdonet 300 tre anslutningsorgan 301 i form av anslutningsklammor for anslutning av en jordledare 320. Vardera anslutningsorgan 301 är elektriskt anslutet till en gemensam huvuddel 303 i form av en jordskena med hjalp av en med respektiveanslutningsorganforknippadjordflata302. Another embodiment of a connector according to the invention is shown schematically in Fig. 5. In this embodiment the connector 300 comprises three connection means 301 in the form of connection clamps for connection of a ground conductor 320. Each connection means 301 is electrically connected to a common main part 303 in the form of a ground rail with the aid of a ground surface 302 connected to the respective connecting means 302.
Anslutningsorganen 301 är ingjutna i fastorgan 311 vilka är utformade for ingrepp med urtag 309 anordnade i huvuddelen 303. FOr att losgorbart kunna fastas vid huvuddelen 303 är fastorganens sidokanter 313 utformade med en tvargaende kant 314, vilken cla fastorganen är i ingrepp med huvuddelens urtag 309 vilar mot kanter 316 anordnade i urtagen 309. Kanterna 314, 316 ar s6 utformade att fastorganet 311 lossnar fran huvuddelen 303 vid ett ryck i en i anslutningsorganet 301 fast jordledare 320. Via anslutningsorganet 301, jordflatan 302 och huvuddelen 303 7 537 89 bibehalls elektrisk kontakt med en till huvuddelen 303 ansluten fast anslutningspunkt hos en skyddsjord (ej visad). The connecting means 301 are molded into fixed means 311 which are designed for engagement with recesses 309 arranged in the main part 303. In order to be releasably fastened to the main part 303, the side edges 313 of the fixed means are formed with a transverse edge 314, which fixed means engage the main part recesses 309. against edges 316 arranged in the recesses 309. The edges 314, 316 are s6 designed so that the fixed member 311 detaches from the main part 303 by a jerk in a ground conductor 320 fixed in the connecting member 301. Via the connecting member 301, the ground surface 302 and the main part 303 7 537 89 electrical contact is maintained with a fixed connection point of a protective earth (not shown) connected to the main part 303.
I samtliga visade utforingsformer ar anslutningsorganet, jordflatan och huvuddelen tillverkade av ett elektriskt ledande material, till exempel koppar eller fortennad koppar. Fastorganen behover dock inte vara elektriskt ledande och kan vara tillverkade av plast eller nagot annat material. Anslutningsorganet kan till exempel vara i form av en anslutningsklamma, dar jordledaren klams fast med snabbanslutning eller med skruv for att f6 elektrisk kontakt med det elektriskt ledande organet, eller i form av en inbyggd kopplingsplint. In all the embodiments shown, the connecting member, the ground surface and the main part are made of an electrically conductive material, for example copper or tinned copper. However, the fasteners do not have to be electrically conductive and can be made of plastic or some other material. The connection means can, for example, be in the form of a connection clamp, where the earth conductor is clamped with a quick connection or with a screw to make electrical contact with the electrically conductive means, or in the form of a built-in terminal block.
Jordledaren som ansluts med hjalp av anslutningsdonet kan vara en renodlad skyddsledare, en sa kallad PE-Iedare, men det kan aven vara en kombinerad skydds- och neutralledare, en sa kallad PEN-Iedare, beroende pa vilket ledarsystem som anvands. Anslutningspunkten hos skyddsjorden till vilken jordledaren ska anslutas kan till exempel vara belagen pa en skyddsledarskena tillverkad av till exempel massing eller koppar, men det kan aven vara en anslutningspunkt hos en annan ledare som fungerar som en skyddsjord. Monteringen av anslutningsdonet vid den fasta anslutningspunkten hos skyddsjorden kan ske med hjalp av till exempel skruv eller genom fastklamning. The earth conductor connected by means of the connector can be a pure protective conductor, a so-called PE conductor, but it can also be a combined protective and neutral conductor, a so-called PEN conductor, depending on which conductor system is used. The connection point of the protective earth to which the earth conductor is to be connected may, for example, be coated on a protective conductor rail made of, for example, pulp or copper, but it may also be a connection point of another conductor which acts as a protective earth. The connector is mounted at the fixed connection point of the protective earth with the aid of, for example, a screw or by clamping.
Anslutningsdonet enligt uppfinningen ar framst avsett for anlaggningar i form av till exempel elcentraler, kabelskap, stallverk eller dylikt, dar en kabel ansluts fast till anslutningspunkter i anlaggningen. Anslutningsdonet kan dock aven anvandas i anlaggningar i form av elektronisk utrustning, hushallsapparater och liknande. The connector according to the invention is primarily intended for installations in the form of, for example, power stations, cable cabinets, stables or the like, where a cable is connected fixedly to connection points in the installation. However, the connector can also be used in systems in the form of electronic equipment, household appliances and the like.
Uppfinnen är naturligtvis inte begransad till ovan namnda utforingsformer, utan dessa är endast att betrakta som exempel vilka kan modifieras inom ramen for bifogade patentkrav. 8 The invention is of course not limited to the above-mentioned embodiments, but these are only to be considered as examples which can be modified within the scope of the appended claims. 8
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1450337A SE537895C2 (en) | 2014-03-24 | 2014-03-24 | Electrical connector for connection of ground conductor protective earth |
| PCT/SE2015/050343 WO2015147731A1 (en) | 2014-03-24 | 2015-03-23 | Electric connection device for connection of a ground wire to a safety ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1450337A SE537895C2 (en) | 2014-03-24 | 2014-03-24 | Electrical connector for connection of ground conductor protective earth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1450337A1 SE1450337A1 (en) | 2015-09-25 |
| SE537895C2 true SE537895C2 (en) | 2015-11-17 |
Family
ID=54196078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1450337A SE537895C2 (en) | 2014-03-24 | 2014-03-24 | Electrical connector for connection of ground conductor protective earth |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE537895C2 (en) |
| WO (1) | WO2015147731A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711720A (en) * | 2015-11-12 | 2017-05-24 | 国网辽宁省电力有限公司本溪供电公司 | Distribution high-voltage ground wire grounding device |
| CN112510386B (en) * | 2020-11-20 | 2022-09-30 | 广东电网有限责任公司 | Grounding wire device |
| CN112911868B (en) * | 2021-01-29 | 2022-02-18 | 安徽理工大学 | Regulator cubicle earthing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2067796A (en) * | 1933-04-27 | 1937-01-12 | Gen Electric | Electric cord and attachment cap |
| GB429503A (en) * | 1933-11-23 | 1935-05-23 | Reyrolle A & Co Ltd | Improvements in or relating to earthing arrangements for electric apparatus |
| US6050840A (en) * | 1997-08-08 | 2000-04-18 | Coleman Cable Systems, Inc. | Electrical plug |
| JP5914528B2 (en) * | 2012-01-20 | 2016-05-11 | 矢崎総業株式会社 | Ground connection structure and manufacturing method thereof |
-
2014
- 2014-03-24 SE SE1450337A patent/SE537895C2/en unknown
-
2015
- 2015-03-23 WO PCT/SE2015/050343 patent/WO2015147731A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| SE1450337A1 (en) | 2015-09-25 |
| WO2015147731A1 (en) | 2015-10-01 |
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