EP2490302B1 - Elément de connexion enfichable à haute tension pour un câble à haute tension et son procédé de fabrication - Google Patents

Elément de connexion enfichable à haute tension pour un câble à haute tension et son procédé de fabrication Download PDF

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Publication number
EP2490302B1
EP2490302B1 EP11001204.4A EP11001204A EP2490302B1 EP 2490302 B1 EP2490302 B1 EP 2490302B1 EP 11001204 A EP11001204 A EP 11001204A EP 2490302 B1 EP2490302 B1 EP 2490302B1
Authority
EP
European Patent Office
Prior art keywords
insulating body
connector component
housing
voltage
cable
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
EP11001204.4A
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German (de)
English (en)
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EP2490302A1 (fr
Inventor
Bernd Beuster
Michael Schaefer
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.)
Baker Hughes Digital Solutions GmbH
Original Assignee
GE Sensing and Inspection Technologies GmbH
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 GE Sensing and Inspection Technologies GmbH filed Critical GE Sensing and Inspection Technologies GmbH
Priority to EP11001204.4A priority Critical patent/EP2490302B1/fr
Priority to CN2012100405634A priority patent/CN102646887A/zh
Priority to US13/372,607 priority patent/US8657618B2/en
Publication of EP2490302A1 publication Critical patent/EP2490302A1/fr
Application granted granted Critical
Publication of EP2490302B1 publication Critical patent/EP2490302B1/fr
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
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the invention relates to a high-voltage connector part for a high-voltage cable, with an insulating body made of a polymer material which surrounds a cable end portion of the high-voltage cable shell side, and a method for producing such a high-voltage connector part.
  • a long-known rubber backing comprises a tapered rubber body tapering towards the contact side, which is inserted into the socket to make a high voltage connection until a front of the rubber body abuts an edge of the socket.
  • the rubber body must first be precisely adjusted so that a defined pressure brings the cone to the concern.
  • the cable end portion is partially stripped, machined, then rubber rubber is wound around the cable end portion and vulcanized to this; however, this process is very expensive.
  • the rubber cone must be greased when mounting before the plug is inserted into the socket to achieve a good high voltage seal between the rubber cone and the socket.
  • the fat evaporates over time, is absorbed by the rubber or hardens;
  • the cable material gives way to aging. To maintain a reliable high-voltage seal requires regular and time-consuming maintenance, removing the old grease and applying new grease and checking the adjustment and repeating it if necessary.
  • thermoset insulating body made of a casting resin in which the insulating body produced in a mold by vacuum hot casting process, processed, coated, glued into the connector housing and glued and potted with the processed cable end section bubble and gap.
  • the thermoset insulating body is no longer removable for repair or maintenance purposes from the connector housing or from the cable end portion.
  • additional measures between the insulator and the socket to achieve a sufficient high voltage seal are required.
  • This high voltage plug is maintenance and adjustment free, but very expensive, prone to failure and can not be repaired.
  • the US 5,626,486 discloses a high-voltage connector part having an insulating body of an elastomeric material, which is accommodated in a fixed housing, wherein the connector part is formed so that due to a connection with a corresponding connector part, a substantially closed pressure space between the housing and the corresponding connector part is formed, wherein the pressure chamber is substantially completely filled by the insulating body, so that a pressurization of the insulating body, a gap-free, high-voltage-tight contact pressure of corresponding plug-in connection part to the insulator and a gap-free, high-voltage-tight contact pressure of the insulator to the housing causes.
  • the US 3,323,097 discloses a high voltage connector in which a cable end portion of the high voltage cable is surrounded on the shell side of the polymer material of the insulating, so that the cable end is in the closed pressure chamber, and pressurization of the insulator causes a gap-free, high voltage-tight contact of the insulating body to the outer surface of the cable end portion.
  • EP 0 487 025 A1 shows another high-voltage connector with an insulating body, which can be pressurized.
  • the object of the invention is to provide a permanently high voltage safe, maintenance-free connector part and a manufacturing method thereof, wherein production, maintenance and repair costs are significantly reduced.
  • the invention solves this problem with the features of the independent claims. Due to the existing of an elastomeric insulating an additional sealing element between the connector parts, such as a rubber disc, dispensable. According to the invention, a pressure space is formed in the connected plug connection parts between the plug housing, the corresponding plug connection part and the cable end portion, which is substantially completely filled by the insulating body.
  • the elastomer advantageously behaves like a liquid under pressure
  • a force exerted on the insulating body, in particular in the plug connection direction causes a gap-free, high-voltage-tight contact pressure of the corresponding plug connection part on the insulating body and a gap-free, high-voltage-tight contact pressure of the insulating body against the jacket surface of the cable end section and advantageously also to the housing.
  • an excellent high voltage seal is achieved between the connector parts, the insulating body, the cable end portion and the housing without further measures.
  • the previously common greasing of the insulating and the associated considerable maintenance can be omitted, as well as, for example, a gluing of the insulating on the cable end. Aging caused by the cable, and detachment of the insulator of the cable end portion and the housing can be compensated without further action.
  • elastomer material also includes materials which are elastic only in certain temperature ranges, in particular thermoplastic elastomers, and materials having a predominantly elastomeric and not predominantly plastic behavior.
  • the insulating body is filled in the housing, cast or injected, whereby the known in the prior art manufacturing steps and the corresponding amount of time can be significantly reduced.
  • in the housing is preferably a filling opening for pouring, filling or injecting elastomeric material provided for the insulating body.
  • the elastomeric material of the insulating body has a high degree of incompressibility.
  • Particularly preferred materials are therefore rubber or silicone elastomer. The latter has the advantage of being processable by open cold casting with little effort and low production times.
  • the high-voltage connector 10 comprises a high-voltage plug 11 and a suitable socket 12.
  • the connector 10 is used in particular for supplying an X-ray component, for example an X-ray tube, with high voltage, in particular in the range of 60 kV up to 500 kV.
  • the socket 12 is in particular arranged fixed to the housing, for example on the housing of a high voltage generator.
  • the plug 11 is in particular connected to a high-voltage cable 13, which in the usual way high-voltage conductor 14, a tubular insulating layer 15 for the high-voltage insulation of the conductors 14 to the outside, a conductive layer 16 for shielding and a protective jacket 17. In the region of the plug 11, the jacket 17 and the shield 16 are removed. This partially stripped cable section, which still has the tubular insulating layer 15 is referred to as cable end portion 18.
  • the plug 11 has a fixed housing 19, which is preferably electrically conductive and in particular made of metal, for example steel sheet. Even a conductive plastic would be possible.
  • the housing 19 is conductively connected to the cable shield 16 by means of a connector 20 to ensure continuous shielding.
  • the connection area between plug 11 and cable 13 is secured by means of a strain relief 21.
  • the entire plug 11 including the housing 19 and strain relief 21 is surrounded by a kink protection 22 made of a suitable material.
  • a contact housing 24 is preferably provided in the plug contacts 25 for the high voltage conductor 14 of the plug 11 and optionally a contact board 26 are arranged.
  • the socket 12 has a corresponding contact housing 40, in which corresponding plug contacts 41 and optionally a contact board 42 are arranged.
  • the contact housing 24, 40 are preferably inserted into one another, as in Fig. 1 and thus form a uniform contact space 23.
  • Fig. 2 can side connections 27 are shown for the high voltage conductor 14.
  • an insulating body 28 is arranged in the space between the plug housing 19 and the cable end portion 18.
  • the insulating body 28 consists of a preferably cold-crosslinked elastomeric material, for example silicone elastomer or rubber.
  • the cable end portion 18 extends through the entire Insulating body 28 and is preferably accommodated on its end face 44 in the contact housing 24, as in Fig. 1 is shown.
  • the insulating body 28 surrounds the cable end portion 18 on its lateral surface 46 around the entire circumference around, in particular annular, and forms a continuous axial opening 45 for the cable end portion 18.
  • the insulating body 28 preferably fits snugly against the inside of the housing 19.
  • the housing 19 is funnel-shaped and tapers advantageously for the purpose of field control to the cable side 38 out.
  • the insulator 28 is preferably completely received in the housing 19, i. that the insulating body 28 preferably has no part projecting beyond the housing 19.
  • the insulating body 28 may also project beyond the housing, for example when the contact surface 32 of the insulating body 28 is frustoconical.
  • the elastomeric material of the insulating body 28 can be removed from the housing 19 with relatively little effort.
  • the cable 13 or the cable end section 18 is inserted through an opening 29 arranged in the housing 19 on the cable side 38 of the plug 11, the inner diameter of which is adapted to the outer diameter of the cable end section 18. Subsequently, the located on the contact side 39 of the plug 11 opening 30 is closed in the housing 19 with a cover, not shown.
  • the preferably cold-crosslinking silicone rubber is then introduced through a filling opening 31 provided in the housing 11.
  • the filling space 43 is limited by the housing 19, the cable end portion 18, the contact housing 24 and the closure lid.
  • the pressurizing means 34 preferably consists of one or more, here two, disc springs 36, which have distributed over the circumference bores 35 for fastening means, not shown, in particular screws.
  • the plug 11 is first inserted along the connecting direction 33 in the socket 12, wherein the contact pins 25 of the plug 11 and the socket 12 intermesh to produce the high voltage connection.
  • the flat contact surface 32 of the insulator 28 abuts against a corresponding flat contact surface 37 of the socket 12, which is expediently also oriented perpendicular to the plug connection direction 33.
  • the surface 32 of the socket 12, the housing 19, the lateral surface 46 of the cable end portion 46 and the contact housing 24 form a substantially closed (apart from functional openings such as the filling opening 31) pressure chamber 43rd
  • the plate springs 36 are tightened by means of the cross through the openings 35 mounting screws against the socket 12 until the disc springs 36 are perpendicular, as in Fig. 1 shown, and thus indicate the achievement of a predetermined high fastening force in the range of, for example, 10 kN.
  • the fastening force is from the contact surface 37th of the socket 12 on the contact surface 32 of the insulating body 28 transmitted. Due to the high pressure exerted by the pressurizing device 34 on the insulating body 28 and the elasticity of the insulating body 28, an excellent high-voltage seal between the plug 11 and the socket 12 is achieved. The insertion of a separate rubber sealing disc and the introduction of grease between the connector part 11, 12 is no longer necessary, a regular maintenance of the connector 10 can therefore be dispensed with.
  • a pressure exerted by the contact surface 37 of the socket 12 on the contact surface 32 of the insulator 28 pressure is transferred from this and causes a contact pressure of the insulating body 28 to the entire insulating body 28 contacting surface 46 of the cable end portion 18 and to the whole of the insulating body 28 contacting inner surface of the housing 19, so that also between the insulator 28 and the cable end portion 18 and between the insulator 28 and the housing 19 an excellent high voltage seal is achieved.
  • An aging-conditioned yielding of the cable end portion 18 is compensated.
  • the housing 19 is designed to receive the forces exerted by the pressurizing device 34.
  • connector 10 can be reversed with built-in connector 12 and plug-in connector or socket 11 executed.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Claims (15)

  1. Elément de connexion mâle-femelle haute tension (11) pour un câble haute tension (13), comprenant un corps isolant (28) en une matière polymère qui entoure côté gaine une portion d'extrémité de câble (18) du câble haute tension (13), dans lequel ledit corps isolant (28) reçu dans un boîtier (19) fixe est réalisé dans une matière élastomère, et ledit élément de connexion mâle-femelle (11) est formé de telle sorte que, par suite de la liaison à un élément de connexion mâle-femelle (12) correspondant, un espace de pression (43) pour l'essentiel fermé est formé entre ledit boîtier (19), ledit élément de connexion mâle-femelle (12) correspondant et ladite portion d'extrémité de câble (18), ledit espace de pression (43) étant rempli pour l'essentiel complètement dudit corps isolant (28), et le boîtier (19) fixe présentant une forme d'entonnoir tout en se rétrécissant vers le côté de câble (38) et tout en présentant une ouverture (30) côté contact qui est remplie au moins en partie du corps isolant (28), et le corps isolant (28) présentant une surface de contact (32) au niveau de cette ouverture (30) côté contact du boîtier (19), qui, lorsque ledit élément de connexion mâle-femelle haut tension (11) est relié à un élément de connexion mâle-femelle (12) correspondant, s'applique contre une surface de contact (37) de l'élément de connexion mâle-femelle (12) correspondant de telle sorte qu'une mise en pression du corps isolant (28) via sa surface de contact (32) provoque une pression exempte de fente et étanche à la haute tension de l'élément de connexion mâle-femelle (12) correspondant contre le corps isolant (28), une pression exempte de fente et étanche à la haute tension du corps isolant (28) contre le boîtier (19) ainsi qu'une pression exempte de fente et étanche à la haute tension du corps isolant (28) contre la surface latérale (46) de la portion d'extrémité de câble (18), ledit corps isolant (28) étant versé, coulé ou injecté dans le boîtier (19).
  2. Elément de connexion mâle-femelle selon la revendication 1, dans lequel la matière élastomère du corps isolant (28) est réalisée à partir d'une matière de caoutchouc apte au coulage à froid.
  3. Elément de connexion mâle-femelle selon la revendication 1, dans lequel la matière élastomère du corps isolant (28) est réalisée à partir d'une matière de caoutchouc apte au coulage à chaud ou au moulage par injection.
  4. Elément de connexion mâle-femelle selon l'une quelconque des revendications précédentes, dans lequel ladite portion d'extrémité de câble (18) présente encore l'isolation haute tension (15) tubulaire du câble haute tension (13).
  5. Elément de connexion mâle-femelle selon l'une quelconque des revendications précédentes, dans lequel ledit corps isolant (28) s'applique avec ajustement précis contre le boîtier (19).
  6. Elément de connexion mâle-femelle selon l'une quelconque des revendications précédentes, dans lequel une ouverture de remplissage (31) est prévue dans le boîtier (19) pour injecter ou verser de la matière élastomère pour le corps isolant (28).
  7. Elément de connexion mâle-femelle selon l'une quelconque des revendications précédentes, comprenant un moyen de mise en pression (34) destiné à soumettre le corps isolant (28) à une pression lorsque les éléments de connexion mâle-femelle (11, 12) sont reliés.
  8. Elément de connexion mâle-femelle selon la revendication 7, dans lequel ledit moyen de mise en pression (34) comprend au moins une rondelle Belleville (36).
  9. Elément de connexion mâle-femelle selon l'une quelconque des revendications précédentes, dans lequel ledit corps isolant (28) est reçu complètement à l'intérieur du boîtier (19).
  10. Elément de connexion mâle-femelle selon l'une quelconque des revendications précédentes, dans lequel ledit corps isolant (28) est réalisé pour l'essentiel en caoutchouc.
  11. Elément de connexion mâle-femelle selon l'une quelconque des revendications 1 à 10, dans lequel le corps isolant (28) est réalisé pour l'essentiel en élastomère de silicone.
  12. Connecteur mâle-femelle haute tension (10) comprenant un premier élément de connexion mâle-femelle (11) selon l'une quelconque des revendications précédentes et un deuxième élément de connexion mâle-femelle (12) agissant de concert avec celui-ci, caractérisé par le fait que, lorsque les éléments de connexion mâle-femelle (11, 12) sont reliés à protection contre la haute tension, la surface de contact (32) du corps isolant (28) du premier élément de connexion mâle-femelle (11) s'applique avec mise en pression, sans partie intermédiaire séparée, contre la surface de contact (37) du deuxième élément de connexion mâle-femelle (12).
  13. Procédé de fabrication d'un élément de connexion mâle-femelle haute tension (11) selon l'une quelconque des revendications 1 à 12, caractérisé par le fait que l'on fait passer le câble haute tension (13) à travers une ouverture de boîtier (29) côté câble dans le boîtier (19) fixe et que de la matière élastomère destinée à former le corps isolant (28) est versée, coulée ou injectée dans le boîtier (19).
  14. Procédé selon la revendication 13, dans lequel, avant de verser, de couler ou d'injecter la matière élastomère, ladite ouverture (30) côté contact dans le boîtier (19) est obturée par un couvercle, ce par quoi la surface de contact (32) du corps isolant (28) se forme sur la face intérieure du couvercle.
  15. Procédé selon la revendication 14, dans lequel la matière élastomère est introduite dans le boîtier (19) à travers une ouverture de remplissage (31) ménagée dans le boîtier (19).
EP11001204.4A 2011-02-15 2011-02-15 Elément de connexion enfichable à haute tension pour un câble à haute tension et son procédé de fabrication Active EP2490302B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11001204.4A EP2490302B1 (fr) 2011-02-15 2011-02-15 Elément de connexion enfichable à haute tension pour un câble à haute tension et son procédé de fabrication
CN2012100405634A CN102646887A (zh) 2011-02-15 2012-02-14 用于高电压电缆的高电压连接器组件、高电压连接器、以及制造高电压连接器组件的方法
US13/372,607 US8657618B2 (en) 2011-02-15 2012-02-14 High-voltage connector component for a high-voltage cable, high-voltage connector, and method of manufacturing a high-voltage connector component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11001204.4A EP2490302B1 (fr) 2011-02-15 2011-02-15 Elément de connexion enfichable à haute tension pour un câble à haute tension et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP2490302A1 EP2490302A1 (fr) 2012-08-22
EP2490302B1 true EP2490302B1 (fr) 2016-06-08

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US (1) US8657618B2 (fr)
EP (1) EP2490302B1 (fr)
CN (1) CN102646887A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2490302B1 (fr) * 2011-02-15 2016-06-08 GE Sensing & Inspection Technologies GmbH Elément de connexion enfichable à haute tension pour un câble à haute tension et son procédé de fabrication
CN106486257B (zh) 2014-06-23 2018-05-04 上海联影医疗科技有限公司 高压发生器
DE102014015974B4 (de) * 2014-10-31 2021-11-11 Baker Hughes Digital Solutions Gmbh Anschlusskabel zur Verminderung von überschlagsbedingten transienten elektrischen Signalen zwischen der Beschleunigungsstrecke einer Röntgenröhre sowie einer Hochspannungsquelle
CN105977743B (zh) * 2016-07-09 2018-08-07 中国电子科技集团公司第四十研究所 双头高压转换连接器
US10361551B2 (en) * 2016-07-21 2019-07-23 Heat-Line Corporation End seal for heating cable
US10014623B2 (en) * 2016-11-23 2018-07-03 General Electric Company X-ray tube high voltage connector with integrated heating transformer
CN106785593B (zh) * 2017-02-22 2022-11-11 深圳市众恒世讯科技股份有限公司 线缆接头结构
CN108811409B (zh) * 2017-05-04 2020-06-23 欧姆龙株式会社 电子机器

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Also Published As

Publication number Publication date
US20120208386A1 (en) 2012-08-16
US8657618B2 (en) 2014-02-25
CN102646887A (zh) 2012-08-22
EP2490302A1 (fr) 2012-08-22

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