EP1628368B1 - Explosion-proof cable feedthrough - Google Patents

Explosion-proof cable feedthrough Download PDF

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Publication number
EP1628368B1
EP1628368B1 EP05291593A EP05291593A EP1628368B1 EP 1628368 B1 EP1628368 B1 EP 1628368B1 EP 05291593 A EP05291593 A EP 05291593A EP 05291593 A EP05291593 A EP 05291593A EP 1628368 B1 EP1628368 B1 EP 1628368B1
Authority
EP
European Patent Office
Prior art keywords
cap
explosion
connector
screw thread
resin
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.)
Active
Application number
EP05291593A
Other languages
German (de)
French (fr)
Other versions
EP1628368A1 (en
Inventor
Jean-François Devulder
Louis Symoens
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.)
KSB SAS
Original Assignee
KSB SAS
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 KSB SAS filed Critical KSB SAS
Priority to PL05291593T priority Critical patent/PL1628368T3/en
Priority to SI200530021T priority patent/SI1628368T1/en
Publication of EP1628368A1 publication Critical patent/EP1628368A1/en
Application granted granted Critical
Publication of EP1628368B1 publication Critical patent/EP1628368B1/en
Priority to CY20071100911T priority patent/CY1107694T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/527—Flameproof cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Definitions

  • the present invention relates to explosion-proof wall bushings and, more particularly, but not exclusively, to wall bushings used for powering submersible pumps.
  • a wall penetration of this type must be leakproof and explosion-proof.
  • the invention overcomes this disadvantage by a wall penetration whose explosion-proof effect is perfectly ensured, while maintaining a seal and also having a newly updated anticapillarity effect.
  • the invention relates to a wall penetration of the aforementioned type in which there is provided an intermediate piece having a thread for the body which cooperates with the tapping of the body and the length of the tapping of the body is sufficient to ensure an effect explosion-proof, the intermediate piece having a thread for the cap which cooperates with a tapping of the cap and the cap screwed on the intermediate piece compresses the seal, the tapping of the cap having a length sufficient to ensure an explosion-proof effect.
  • FIGURE of the appended drawing is a sectional view of a wall penetration according to the invention.
  • the wall penetration shown in FIG. 1 comprises an electrical connector 1 connected to a bundle 2 of cable.
  • the portion of the connector 1 adjacent to the beam 2 and the portion of the beam 2 adjacent to the connector 1 are coated with a mass 3 of epoxy resin.
  • the resin is surrounded by a metal tubular body 4 provided with internal grooves 5 in which the resin is hooked.
  • the tubular body 4 has on the opposite side to the connector 1 a thread having a length of 10 mm and having six turns.
  • An intermediate piece 7 has a thread 8 for the body 4, which cooperates with the tapping 6 of the body 4 which has the same length and the same number of turns.
  • the intermediate piece also has a thread 9 for a cap 10 compression gland of a packing 11 seal.
  • a tapping 12 of the cap 10 cooperates with the thread 9.
  • the threaded joint between 9 and 10 has a number of turns and a length which, in the same way as the threaded joint between the thread 8 and the thread 6 ensures an explosion-proof effect.
  • the cap 10 screwed on the intermediate part 7 compresses the seal 11.
  • a stirrup 13 comes from material with the body 4 by stamping.

Abstract

The feedthrough has an intermediate part (7) with threadings (8, 9) for a tubular body (4) and a cap (10) cooperating with threaded holes (6, 12) of the body and the cap, respectively. The cap screwed on the part (7) compresses a packing seal (11) and the hole (12). A part of an electrical connector (1) adjacent to a cable bundle (2) and a part of the bundle adjacent to the connector are coated with an epoxy resin mass.

Description

La présente invention se rapporte aux traversées de paroi antidéflagrante et, plus particulièrement mais non uniquement, à des traversées de paroi utilisées pour l'alimentation électrique des pompes submersibles.The present invention relates to explosion-proof wall bushings and, more particularly, but not exclusively, to wall bushings used for powering submersible pumps.

Une traversée de paroi de ce genre doit être étanche et être antidéflagrante.A wall penetration of this type must be leakproof and explosion-proof.

On connaît déjà une traversée de paroi comprenant un connecteur électrique relié à un faisceau de câble. Seulement la partie du connecteur voisine du faisceau et la partie du faisceau voisine du connecteur sont enrobées d'une masse de résine. Autrement dit, le connecteur dépasse d'un côté de la masse de résine et le faisceau de câble sort de l'autre côté. La résine est entourée d'un corps tubulaire métallique comportant du côté opposé au connecteur un taraudage. Un chapeau de presse étoupe de compression d'une garniture d'étanchéité est prévu du côté opposé au connecteur. Une traversée de paroi de ce genre est décrite au modèle d'utilité allemand G 9413463.4. La masse de résine y est présentée comme assurant un effet antidéflagrant. Dans le cas où la résine perd de son efficacité l'effet antidéflagrant n'est plus assuré.There is already known a wall penetration comprising an electrical connector connected to a cable harness. Only the portion of the adjacent connector of the beam and the portion of the neighboring beam of the connector are coated with a mass of resin. In other words, the connector protrudes from one side of the resin mass and the cable harness exits the other side. The resin is surrounded by a tubular metal body having on the opposite side to the connector a tapping. A packing gland packing cap of a packing is provided on the opposite side to the connector. A wall crossing of this kind is described in the German utility model G 9413463.4. The resin mass is presented as providing an explosion-proof effect. In the case where the resin loses its effectiveness the explosion-proof effect is no longer ensured.

L'invention remédie à cet inconvénient par une traversée de paroi dont l'effet antidéflagrant est parfaitement assuré, tout en conservant une étanchéité et en ayant également un effet nouvellement mis à jour d'anticapillarité.The invention overcomes this disadvantage by a wall penetration whose explosion-proof effect is perfectly ensured, while maintaining a seal and also having a newly updated anticapillarity effect.

L'invention a pour objet une traversée de paroi du type mentionné ci-dessus dans laquelle il est prévu une pièce intermédiaire ayant un filetage pour le corps qui coopère avec le taraudage du corps et la longueur du taraudage du corps est suffisante pour assurer un effet antidéflagrant, la pièce intermédiaire ayant un filetage pour le chapeau qui coopère avec un taraudage du chapeau et le chapeau vissé sur la pièce intermédiaire comprime la garniture d'étanchéité, le taraudage du chapeau ayant une longueur suffisante pour assurer un effet antidéflagrant.The invention relates to a wall penetration of the aforementioned type in which there is provided an intermediate piece having a thread for the body which cooperates with the tapping of the body and the length of the tapping of the body is sufficient to ensure an effect explosion-proof, the intermediate piece having a thread for the cap which cooperates with a tapping of the cap and the cap screwed on the intermediate piece compresses the seal, the tapping of the cap having a length sufficient to ensure an explosion-proof effect.

On ne s'en remet plus maintenant pour assurer l'effet antidéflagrant seulement à la masse de résine, mais on assure cet effet antidéflagrant par la conformation conforme aux normes des joints vissés tant entre le chapeau et la pièce intermédiaire qu'entre la pièce intermédiaire et le corps. S'il se produit une blessure dans le câble, de sorte que du liquide y suinte par capillarité, il est toujours empêché par la masse de résine d'atteindre le moteur électrique, l'antidéflagrance étant de toute façon conservée.It is now not relied on to provide the explosion-proof effect only to the resin mass, but this explosion-proof effect is ensured by conforming to the standards of the screwed seals both between the cap and the intermediate piece and between the intermediate piece. and the body. If there is a wound in the cable, so that liquid there oozing by capillary action, it is still prevented by the mass of resin to reach the electric motor, the explosion-proof is anyway preserved.

La Figure unique du dessin annexé est une vue en coupe d'une traversée de paroi suivant l'invention.The single FIGURE of the appended drawing is a sectional view of a wall penetration according to the invention.

La traversée de paroi représentée à la Figure comprend un connecteur 1 électrique relié à un faisceau 2 de câble. La partie du connecteur 1 voisine du faisceau 2 et la partie du faisceau 2 voisine du connecteur 1 sont enrobées d'une masse 3 de résine époxy. La résine est entourée d'un corps 4 tubulaire métallique muni de rainures 5 intérieures dans laquelle la résine vient s'accrocher. Le corps 4 tubulaire comporte du côté opposé au connecteur 1 un taraudage d'une longueur de 10 mm et ayant six spires.The wall penetration shown in FIG. 1 comprises an electrical connector 1 connected to a bundle 2 of cable. The portion of the connector 1 adjacent to the beam 2 and the portion of the beam 2 adjacent to the connector 1 are coated with a mass 3 of epoxy resin. The resin is surrounded by a metal tubular body 4 provided with internal grooves 5 in which the resin is hooked. The tubular body 4 has on the opposite side to the connector 1 a thread having a length of 10 mm and having six turns.

Une pièce 7 intermédiaire a un filetage 8 pour le corps 4, qui coopère avec le taraudage 6 du corps 4 qui a la même longueur et le même nombre de spires. La pièce intermédiaire a également un filetage 9 pour un chapeau 10 de presse étoupe de compression d'une garniture 11 d'étanchéité. Un taraudage 12 du chapeau 10 coopère avec le filetage 9. Le joint fileté entre 9 et 10 a un nombre de spires et une longueur qui, de la même façon que le joint fileté entre le filetage 8 et le taraudage 6 assure un effet antidéflagrant. Le chapeau 10 vissé sur la pièce 7 intermédiaire comprime la garniture 11 d'étanchéité.An intermediate piece 7 has a thread 8 for the body 4, which cooperates with the tapping 6 of the body 4 which has the same length and the same number of turns. The intermediate piece also has a thread 9 for a cap 10 compression gland of a packing 11 seal. A tapping 12 of the cap 10 cooperates with the thread 9. The threaded joint between 9 and 10 has a number of turns and a length which, in the same way as the threaded joint between the thread 8 and the thread 6 ensures an explosion-proof effect. The cap 10 screwed on the intermediate part 7 compresses the seal 11.

Un étrier 13 vient de matière avec le corps 4 par matriçage.A stirrup 13 comes from material with the body 4 by stamping.

Même si la résine venait à manquer d'efficacité, l'effet antidéflagrant est assuré par la double coopération des joints filetés constitués, respectivement, par le filetage 8 et le taraudage 6 d'une part et par le filetage 9 et le taraudage 12 d'autre part. Si le câble est blessé, c'est-à-dire que de l'eau suinte à l'intérieur du câble, la résine conserve un rôle d'anticapillarité en empêchant que de l'eau passe le long du toron blessé et n'atteigne le côté du connecteur où se trouve le moteur.Even if the resin lacked efficiency, the explosion-proof effect is ensured by the double cooperation of the threaded joints constituted, respectively, by the thread 8 and the tapping 6 on the one hand and by the thread 9 and the thread 12 'somewhere else. If the cable is injured, that is to say that water seeps inside the cable, the resin retains a role of anticapillarity by preventing water from passing along the injured strand and does not reaches the side of the connector where the motor is.

Claims (1)

  1. Cable feedthrough comprising:
    - an electrical connector (1) connected to a cable bundle (2), only that part of the connector (1) close to the cable bundle (2) and that part of the cable bundle (2) close to the connector (1) being embedded in a mass of resin (3);
    - the resin being surrounded by a tubular body (4) having, on the opposite side to the connector (1), an internal screw thread (6); and
    - a gland cap (10) for compressing a seal (11) on the opposite side to the connector,
    characterized by an intermediate part (7) having an external screw thread (8) for the body (4), which engages with the internal screw thread (6) of the body (4), the length of the body (4) being sufficient to provide an explosion-proof effect, and having an external screw thread (9) for the cap (10), which engages with an internal screw thread (12) of the cap (10), the cap (10) screwed onto the intermediate part (7) compressing the seal and the internal screw thread (12) of the cap (10) having a length sufficient to ensure an explosion-proof effect.
EP05291593A 2004-08-17 2005-07-26 Explosion-proof cable feedthrough Active EP1628368B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL05291593T PL1628368T3 (en) 2004-08-17 2005-07-26 Explosion-proof cable feedthrough
SI200530021T SI1628368T1 (en) 2004-08-17 2005-07-26 Explosion-proof cable feedthrough
CY20071100911T CY1107694T1 (en) 2004-08-17 2007-07-09 ANTI-WALL WALL TRANSLATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0408916A FR2874462B1 (en) 2004-08-17 2004-08-17 ANTI-FLAGING WALL THROUGH

Publications (2)

Publication Number Publication Date
EP1628368A1 EP1628368A1 (en) 2006-02-22
EP1628368B1 true EP1628368B1 (en) 2007-05-02

Family

ID=34948770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291593A Active EP1628368B1 (en) 2004-08-17 2005-07-26 Explosion-proof cable feedthrough

Country Status (9)

Country Link
EP (1) EP1628368B1 (en)
AT (1) ATE361560T1 (en)
CY (1) CY1107694T1 (en)
DE (1) DE602005001035T2 (en)
DK (1) DK1628368T3 (en)
FR (1) FR2874462B1 (en)
PL (1) PL1628368T3 (en)
PT (1) PT1628368E (en)
SI (1) SI1628368T1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010124575A1 (en) * 2009-04-30 2010-11-04 浙江关西电机有限公司 Sealing device
CN105470672A (en) * 2015-12-30 2016-04-06 南京双京电器集团有限公司 Cable connector
CN111262214A (en) * 2020-04-01 2020-06-09 国网湖南省电力有限公司 Buckle type cable explosion-proof box

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100463306C (en) * 2006-10-25 2009-02-18 贵州航天电器股份有限公司 A light sealing electric connector
FR2914794B1 (en) * 2007-04-06 2011-02-11 Ksb Sas WALL CROSSING AND METHOD FOR MANUFACTURING THE SAME
EP2099100B1 (en) * 2008-03-04 2010-07-21 Grundfos Management A/S Connector plug
DE102009005881B4 (en) * 2009-01-23 2014-02-06 Semikron Elektronik Gmbh & Co. Kg Cable connection device for a power module
DE102009014334B4 (en) 2009-03-05 2011-01-27 Schott Ag Power connection device for containers
CN101557048B (en) * 2009-05-07 2010-11-10 贵州航天电器股份有限公司 Glue-sealed type electric connector
CN101728701B (en) * 2009-10-30 2012-05-23 山东金科星机电有限公司 Mine flameproof high-voltage cable connector
JP5187648B2 (en) * 2010-10-08 2013-04-24 横河電機株式会社 connector
DE102011015609B4 (en) * 2011-03-30 2013-04-18 Comet-Pumpen Systemtechnik Gmbh & Co Kg Electrical device and method for sealing a cable into an electrical device
DE102012108415A1 (en) * 2012-09-10 2014-06-12 Endress + Hauser Flowtec Ag Interface between a sensor unit and an explosion-proof housing
CN106122093B (en) * 2016-08-11 2019-01-01 温州捷高科技有限公司 A kind of cable mounting structure of water pump
BE1030586B1 (en) 2022-06-02 2024-01-08 Phoenix Contact Gmbh & Co Connection device
DE102022113974A1 (en) 2022-06-02 2023-12-07 Phoenix Contact Gmbh & Co. Kg Connection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639599A1 (en) * 1986-11-20 1988-06-01 Magnet Motor Gmbh DEVICE FOR CONNECTING EXPLOSION- AND FLASH-PROTECTED ELECTRICAL EQUIPMENT TO AN ELECTRICAL LINE
FR2705502B1 (en) * 1993-05-18 1995-12-08 Alain Rameau Explosion-proof electrical connector.
DE9413463U1 (en) * 1994-08-20 1994-11-03 Gisma Steckverbinder Gmbh Device for connecting a cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010124575A1 (en) * 2009-04-30 2010-11-04 浙江关西电机有限公司 Sealing device
CN105470672A (en) * 2015-12-30 2016-04-06 南京双京电器集团有限公司 Cable connector
CN111262214A (en) * 2020-04-01 2020-06-09 国网湖南省电力有限公司 Buckle type cable explosion-proof box
CN111262214B (en) * 2020-04-01 2021-02-26 国网湖南省电力有限公司 Buckle type cable explosion-proof box

Also Published As

Publication number Publication date
CY1107694T1 (en) 2013-04-18
PT1628368E (en) 2007-08-01
DE602005001035D1 (en) 2007-06-14
SI1628368T1 (en) 2007-08-31
DK1628368T3 (en) 2007-09-17
EP1628368A1 (en) 2006-02-22
DE602005001035T2 (en) 2008-01-10
FR2874462B1 (en) 2008-07-25
PL1628368T3 (en) 2007-09-28
ATE361560T1 (en) 2007-05-15
FR2874462A1 (en) 2006-02-24

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