FR2688946A1 - Electrical contact of the bellmouth (tulip) type - Google Patents

Electrical contact of the bellmouth (tulip) type Download PDF

Info

Publication number
FR2688946A1
FR2688946A1 FR9203461A FR9203461A FR2688946A1 FR 2688946 A1 FR2688946 A1 FR 2688946A1 FR 9203461 A FR9203461 A FR 9203461A FR 9203461 A FR9203461 A FR 9203461A FR 2688946 A1 FR2688946 A1 FR 2688946A1
Authority
FR
France
Prior art keywords
tulip
contact
tube
bellmouth
fingers
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.)
Granted
Application number
FR9203461A
Other languages
French (fr)
Other versions
FR2688946B1 (en
Inventor
Willieme Jean-Marc
Perret Michel
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
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 GEC Alsthom SA filed Critical GEC Alsthom SA
Priority to FR9203461A priority Critical patent/FR2688946B1/en
Publication of FR2688946A1 publication Critical patent/FR2688946A1/en
Application granted granted Critical
Publication of FR2688946B1 publication Critical patent/FR2688946B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/15Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/18Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket

Landscapes

  • Thermistors And Varistors (AREA)

Abstract

Contact of the bellmouth type, intended to interact with a cylindrical male contact, the said bellmouth including parallel contact fingers arranged side by side along the generatrices of a cylinder and provided with a common base, characterised in that it includes a radial-travel limiter consisting of a metal tube (4) axially engaged around the bellmouth, the tube having an internal diameter equal to the maximum external diameter which the bellmouth may reach while remaining within the elastic limit of the material of the contact fingers (1), the said tube (4) being provided with several tabs (5) extending parallel to the contact fingers (1), each of the tabs (5) being provided with a spigot (6) engaging in a hole (7) made in one contact finger or in two adjacent contact fingers, the said tabs (5) being uniformly distributed around the bellmouth.

Description

CONTACT ELECTRIOUE DE TYPE TULIPE
La présente invention est relative aux contacts électriques du type tulipe, comprenant une couronne de doigts disposés parallèlement entre eux selon les génératrices d'un cylindre et réunis par une base commune.
TULIP-TYPE ELECTRIC CONTACT
The present invention relates to electrical contacts of the tulip type, comprising a ring of fingers arranged parallel to each other along the generatrices of a cylinder and joined by a common base.

De tels doigts de contact sont soumis, par le passage du courant, à des forces électrodynamiques tendant à déplacer les doigts radialement. Si, en raison par exemple d'efforts mécaniques et électrodynamiques importants, la déformation dépasse la limite élastique du matériau, le contact est détérioré, car il ne présente plus les qualités nécessaires, notamment les qualités d'élasticité, pour assurer le passage du courant avec une résistance de contact convenable. Such contact fingers are subjected, by the flow of current, to electrodynamic forces tending to move the fingers radially. If, for example due to significant mechanical and electrodynamic forces, the deformation exceeds the elastic limit of the material, the contact is deteriorated, since it no longer has the necessary qualities, in particular the qualities of elasticity, to ensure the passage of current with suitable contact resistance.

I1 est connu d'empêcher la déformation de tels contacts au-delà de la limite d'élasticité du matériau, en fixant sur la tulipe, à son extrémité, une bague ou une couronne. I1 is known to prevent the deformation of such contacts beyond the elastic limit of the material, by fixing on the tulip, at its end, a ring or a crown.

Une telle solution présente des inconvénients:
- d'une part, la bague ou couronne alourdit le contact, ce qui est préjudiciable lorsqu'il est installé sur un équipage mobile,
- d'autre part, la couronne ou bague présente un encombrement radial qui est rédhibitoire dans certaines applications, en particulier dans les chambres de coupure des disjoncteurs à haute tension.
Such a solution has drawbacks:
on the one hand, the ring or crown increases the contact, which is detrimental when installed on a mobile assembly,
- On the other hand, the crown or ring has a radial size which is prohibitive in certain applications, in particular in the breaking chambers of high voltage circuit breakers.

Un but de la présente invention est de réaliser un contact de type tulipe, dans lequel des moyens sont prévus pour éviter la déformation radiale des doigts au-delà de la limite élastique, sans alourdir notablement le contact, sans avoir un encombrement radial important et sans gêner le libre jeu des doigts dans les limites élastiques permises. An object of the present invention is to provide a tulip-type contact, in which means are provided to avoid the radial deformation of the fingers beyond the elastic limit, without significantly increasing the contact, without having a significant radial bulk and without hinder the free play of the fingers within the allowable elastic limits.

La présente invention a pour objet un contact de type tulipe, destiné à coopérer avec un contact mâle cylindrique, ladite tulipe comportant des doigts de contact parallèles, disposés côte-à-côte selon les génératrices d'un cylindre et pourvus d'une embase commune, caractérisé en ce qu'il comporte un limiteur de course radiale constitué d'un tube métallique engagé coaxialement autour de la tulipe, le tube ayant un diamètre intérieur égal au diamètre extérieur maximal que peut atteindre la tulipe en restant dans la limite d'élasticité du matériau des doigts de contact, ledit tube étant muni de plusieurs pattes s'étendant parallèlement aux doigts de contact, chacune des pattes étant munie d'un ergot s'engageant dans un trou pratiqué dans un doigt ou dans deux doigts adjacents, lesdites pattes étant régulièrement réparties autour de la tulipe. The subject of the present invention is a tulip-type contact, intended to cooperate with a cylindrical male contact, said tulip comprising parallel contact fingers, arranged side by side along the generatrices of a cylinder and provided with a common base. , characterized in that it comprises a radial stroke limiter consisting of a metal tube engaged coaxially around the tulip, the tube having an inside diameter equal to the maximum outside diameter which the tulip can reach while remaining within the elastic limit of the material of the contact fingers, said tube being provided with several tabs extending parallel to the contact fingers, each of the tabs being provided with a lug engaging in a hole made in one finger or in two adjacent fingers, said tabs being regularly distributed around the tulip.

De préférence, ledit limiteur comprend entre 3 et 5 pattes. Preferably, said limiter comprises between 3 and 5 legs.

Dans un mode préféré de réalisation, le tube et les pattes sont métalliques, de préférence en acier ou aluminium, un film isolant recouvrant la face interne du tube et les ergots. In a preferred embodiment, the tube and the legs are metallic, preferably steel or aluminum, an insulating film covering the internal face of the tube and the pins.

Avantageusement, l'épaisseur du tube est comprise entre 2 et 4 millimètres. Advantageously, the thickness of the tube is between 2 and 4 millimeters.

L'invention sera bien comprise à la lecture de la description ci-après d'un exemple de réalisation de l'invention, en référence au dessin annexé dans lequel:
- la figure 1 est une vue en coupe axiale d'un contact de type tulipe équipé du limiteur de déformation axiale de l'invention,
- la figure 2 est une vue en perspective d'un limiteur à trois pattes,
- la figure 3 représente deux doigts de contact adjacents munis chacun d'un trou en demi-cercle pour le passage d'un ergot de fixation du limiteur.
The invention will be clearly understood on reading the description below of an exemplary embodiment of the invention, with reference to the appended drawing in which:
FIG. 1 is a view in axial section of a tulip-type contact fitted with the axial deformation limiter of the invention,
FIG. 2 is a perspective view of a three-legged limiter,
- Figure 3 shows two adjacent contact fingers each provided with a semicircular hole for the passage of a fixing lug of the limiter.

Dans la figure 1, la référence 1 désigne l'un des doigts de contact d'un contact tulipe comportant une pluralités de contacts disposés parallèlement entre eux de manière quasi jointive, le long des génératrices d'un cylindre. Ces doigts de contact ont une embase commune 2; généralement l'embase et les doigts proviennent d'une même pièce de métal convenablement usinée. In FIG. 1, the reference 1 designates one of the contact fingers of a tulip contact comprising a plurality of contacts arranged parallel to each other in an almost contiguous manner, along the generatrices of a cylinder. These contact fingers have a common base 2; generally the base and the fingers come from the same piece of metal, suitably machined.

Le contact tulipe précité est destiné à coopérer avec un contact mâle 3, de forme cylindrique. Lorsque le contact tulipe et le contact mâles sont engagés et parcourus par le courant nominal, le diamètre extérieur du contact tulipe est égal à +1, comme indiqué dans la figure 1. The aforementioned tulip contact is intended to cooperate with a male contact 3, of cylindrical shape. When the tulip contact and the male contact are engaged and traversed by the nominal current, the external diameter of the tulip contact is equal to +1, as shown in Figure 1.

Lors des manoeuvres de fermeture, les doigts de contact ont tendance à s'écarter sous l'action des forces mécaniques et électromagnétiques conjuguées. Si la déformation dépasse la limite d'élasticité du matériau des doigts de contact, le contact est mis hors d'usage. During closing operations, the contact fingers tend to move apart under the action of combined mechanical and electromagnetic forces. If the deformation exceeds the elastic limit of the material of the contact fingers, the contact is put out of use.

Pour éviter cet inconvénient et selon l'invention, on place un limiteur de déformation des doigts autour de la tulipe. On se référera également à la figure 2. Le limiteur est constitué par un tube 4, de préférence métallique, entourant la tulipe, et dont le diamètre intérieur +2 est inférieur au diamètre extérieur qu'atteindrait la tulipe à la limite de la déformation élastique. To avoid this drawback and according to the invention, a deformation limiter of the fingers is placed around the tulip. Reference will also be made to FIG. 2. The limiter consists of a tube 4, preferably metallic, surrounding the tulip, and whose internal diameter +2 is less than the external diameter that the tulip would reach at the limit of elastic deformation .

Le tube 4 est muni de pattes 5 terminées par des ergots 6 s'engageant dans des trous 6 pratiqués dans les doigts de contact 1. The tube 4 is provided with lugs 5 terminated by lugs 6 engaging in holes 6 made in the contact fingers 1.

Si besoin est, comme le montre la figure 3, les trous 7 sont à cheval sur deux doigts adjacents. If necessary, as shown in Figure 3, the holes 7 are straddling two adjacent fingers.

Le tube comprend avantageusement de 3 à 5 pattes, réparties régulièrement autour du tube 4. La figure 2 illustre un tube muni de trois pattes. The tube advantageously comprises from 3 to 5 legs, distributed regularly around the tube 4. FIG. 2 illustrates a tube provided with three legs.

L'épaisseur du tube, lorsque celui-ci est réalisé en aluminium ou alliage d'aluminium, est comprise entre 2 et 4 millimètres, de préférence 3 millimètres. The thickness of the tube, when the latter is made of aluminum or aluminum alloy, is between 2 and 4 millimeters, preferably 3 millimeters.

Pour éviter le court-circuitage des doigts par le limiteur, la face interne du tube et des pattes comporte un film isolant, tel qu'un vernis. To avoid short-circuiting of the fingers by the limiter, the internal face of the tube and the legs includes an insulating film, such as a varnish.

L'invention s'applique à tout contact de type tulipe, en particulier aux contacts destinés à équiper des appareillages à haute tension et à courant nominal important.  The invention applies to any tulip-type contact, in particular to contacts intended to equip high-voltage switchgear with high nominal current.

Claims (4)

REVENDICATIONS 1/ Contact de type tulipe, destiné à coopérer avec un contact mâle cylindrique, ladite tulipe comportant des doigts de contact parallèles, disposés côte-à-côte selon les génératrices d'un cylindre et pourvus d'une embase commune, caractérisé en ce qu'il comporte un limiteur de course radiale constitué d'un tube métallique (4) engagé coaxialement autour de la tulipe, le tube ayant un diamètre intérieur égal au diamètre extérieur maximal que peut atteindre la tulipe en restant dans la limite d'élasticité du matériau des doigts de contact (1), ledit tube (4) étant muni de plusieurs pattes (5) s'étendant parallèlement aux doigts de contact (1), chacune des pattes (5) étant munie d'un ergot (6) s'engageant dans un trou (7) pratiqué dans un doigt ou dans deux doigts de contact adjacents, lesdites pattes (5) étant régulièrement réparties autour de la tulipe.1 / Tulip type contact, intended to cooperate with a cylindrical male contact, said tulip comprising parallel contact fingers, arranged side by side along the generatrices of a cylinder and provided with a common base, characterized in that '' it includes a radial stroke limiter consisting of a metal tube (4) engaged coaxially around the tulip, the tube having an inside diameter equal to the maximum outside diameter that the tulip can reach while remaining within the elastic limit of the material contact fingers (1), said tube (4) being provided with several lugs (5) extending parallel to the contact fingers (1), each of the lugs (5) being provided with a lug (6) engaging in a hole (7) made in a finger or in two adjacent contact fingers, said tabs (5) being regularly distributed around the tulip. 2/ Contact tulipe selon la revendication 1, caractérisé en ce que ledit limiteur comprend de 3 à 5 pattes (5).2 / Tulip contact according to claim 1, characterized in that said limiter comprises from 3 to 5 legs (5). 3/ Contact tulipe selon l'une des revendications 1 et 2, caractérisé en ce que le tube (4) et les pattes (5) sont métalliques, de préférence en aluminium ou alliage d'aluminium, un film isolant recouvrant la face interne du tube (4) et ou les ergots (6).3 / Tulip contact according to one of claims 1 and 2, characterized in that the tube (4) and the legs (5) are metallic, preferably made of aluminum or aluminum alloy, an insulating film covering the internal face of the tube (4) and or the pins (6). 4/ Contact tulipe selon la revendication 3, caractérisé en ce que l'épaisseur du tube (4) est comprise entre 2 et 4 millimètres. 4 / Tulip contact according to claim 3, characterized in that the thickness of the tube (4) is between 2 and 4 millimeters.
FR9203461A 1992-03-23 1992-03-23 TULIP TYPE ELECTRIC CONTACT. Expired - Fee Related FR2688946B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9203461A FR2688946B1 (en) 1992-03-23 1992-03-23 TULIP TYPE ELECTRIC CONTACT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9203461A FR2688946B1 (en) 1992-03-23 1992-03-23 TULIP TYPE ELECTRIC CONTACT.

Publications (2)

Publication Number Publication Date
FR2688946A1 true FR2688946A1 (en) 1993-09-24
FR2688946B1 FR2688946B1 (en) 1994-05-06

Family

ID=9427963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9203461A Expired - Fee Related FR2688946B1 (en) 1992-03-23 1992-03-23 TULIP TYPE ELECTRIC CONTACT.

Country Status (1)

Country Link
FR (1) FR2688946B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469560A1 (en) * 2003-04-15 2004-10-20 COULON, Guy Contact piece for an electrical connector
DE102019113608A1 (en) * 2019-05-22 2020-07-09 Lisa Dräxlmaier GmbH Plug contact

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR719293A (en) * 1931-06-30 1932-02-03 Improvements made to electrical connections by plugs, and more particularly to the contacts used in t. s. f., especially in lamp holders
FR1234303A (en) * 1959-05-15 1960-10-17 L App Electr Ind Cheveau Improvements to the contact components of sockets, extensions and connectors
EP0108878A1 (en) * 1982-11-10 1984-05-23 Grote & Hartmann GmbH & Co. KG Circular socket with a surrounding spring member
DE3629740A1 (en) * 1985-09-16 1987-03-26 Amp Inc Socket-like electrical connection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR719293A (en) * 1931-06-30 1932-02-03 Improvements made to electrical connections by plugs, and more particularly to the contacts used in t. s. f., especially in lamp holders
FR1234303A (en) * 1959-05-15 1960-10-17 L App Electr Ind Cheveau Improvements to the contact components of sockets, extensions and connectors
EP0108878A1 (en) * 1982-11-10 1984-05-23 Grote & Hartmann GmbH & Co. KG Circular socket with a surrounding spring member
DE3629740A1 (en) * 1985-09-16 1987-03-26 Amp Inc Socket-like electrical connection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469560A1 (en) * 2003-04-15 2004-10-20 COULON, Guy Contact piece for an electrical connector
DE102019113608A1 (en) * 2019-05-22 2020-07-09 Lisa Dräxlmaier GmbH Plug contact

Also Published As

Publication number Publication date
FR2688946B1 (en) 1994-05-06

Similar Documents

Publication Publication Date Title
CA2130489C (en) Female contact, particularly for high voltage breaker
WO2002009250A1 (en) Device for axially retaining a cylindrical element and more particularly a cable
EP1571685B1 (en) Mounting device for a shield in an electrical interrupter, preferably in a vacuum interrupter
CA2095896C (en) Perpendicularly opening grounding switch
FR2702202A1 (en) Roller mounted rotating on bearings by a ball joint.
FR2688946A1 (en) Electrical contact of the bellmouth (tulip) type
EP0642145B2 (en) Tulip type electrical contact
EP1568109B1 (en) Electrical contact with elastic return and electrical connection element equipped with at least one such contact
EP0040781B1 (en) Disconnecting switch for high-voltage metal-enclosed switchgear
EP0045038B1 (en) Assembly for fixation of the end of an electrical cable having an annularly corrugated outer conductor within the body of a connector
EP0588709A1 (en) Circuit breaker with heat shrunk fixed elements
FR2828959A1 (en) DEVICE FOR ELECTRIC TRANSMISSION OF ROTARY SYSTEMS
EP0163794B1 (en) Device for connecting a braided wire to a contact rod, and method of producing it
EP0905721A2 (en) Lead-through device and lead-through assembly including it
EP0862801B1 (en) Electrical coupling part
EP4095878B1 (en) Breaking system of an electrical device
FR2745118A1 (en) Vacuum switch or circuit breaker for low or medium voltages
FR2649837A1 (en) ELECTRICAL POWER CABLE WITH INTERNAL FLUID COOLING
FR2688624A1 (en) INERTIA CONTACT FOR CIRCUIT BREAKER ALLOWING THE TEMPORARY INSERTION OF AN IMPEDANCE.
FR2715452A1 (en) Electrically insulated pipe for jacks mounted on aluminium@ tanks
WO2023242516A1 (en) Clamped power contact
FR2815483A1 (en) Device of material recovery on a conductor
FR2760500A1 (en) RELEASE STOP
WO1999007052A1 (en) Protective sleeve with internal conductive coating for cable end
FR2772976A1 (en) HIGH-VOLTAGE GAS-INSULATED SWITCHING STATION WITH A CUT-OFF SECTION

Legal Events

Date Code Title Description
ST Notification of lapse