EP0430735B1 - Hochspannungsverbinder für Röntgenstrahlenröhre - Google Patents

Hochspannungsverbinder für Röntgenstrahlenröhre Download PDF

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Publication number
EP0430735B1
EP0430735B1 EP90403120A EP90403120A EP0430735B1 EP 0430735 B1 EP0430735 B1 EP 0430735B1 EP 90403120 A EP90403120 A EP 90403120A EP 90403120 A EP90403120 A EP 90403120A EP 0430735 B1 EP0430735 B1 EP 0430735B1
Authority
EP
European Patent Office
Prior art keywords
cathode
connecting pin
high voltage
grid
pins
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.)
Expired - Lifetime
Application number
EP90403120A
Other languages
English (en)
French (fr)
Other versions
EP0430735A1 (de
Inventor
Jacques Sireul
Hans Jedlitschka
Jean-Michel Miquel
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.)
General Electric CGR SA
Original Assignee
General Electric CGR 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 General Electric CGR SA filed Critical General Electric CGR SA
Publication of EP0430735A1 publication Critical patent/EP0430735A1/de
Application granted granted Critical
Publication of EP0430735B1 publication Critical patent/EP0430735B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/02—Electrical arrangements
    • H01J2235/023—Connecting of signals or tensions to or through the vessel
    • H01J2235/0233—High tension

Definitions

  • the invention relates to devices for the electrical supply of X-ray tubes and, more particularly in such devices, the connectors which are used to make the electrical connections between the electrical supply device itself and the X-ray tube arranged. in a tank filled with an insulating and cooling medium.
  • X-ray is generally produced using an X-ray tube.
  • the X-ray tube is contained in a metal sheath filled with an oil electrically insulating, the sheath being intended in particular to ensure the protection of users against electric shock and X-radiation.
  • the sheath equipped with an X-ray tube is called an X-ray assembly.
  • the supply elements of the X-ray tube and in particular the elements of a high-voltage generator producing the high supply voltage of the X-ray tube are grouped in another enclosure located at a distance from the radiogenic assembly.
  • one or more cables with high electrical insulation carry the positive and negative polarities of the high voltage into the sheath containing the X-ray tube by means of electrical connections.
  • Such an electrical connection device or connector is formed in two parts, one of which, called receptacle, constitutes a female part permanently fixed to the sheath; the other part constitutes a male part or end piece intended to be fitted into the receptacle and which is integral with the cable.
  • the receptacle and the end piece are made of electrically insulating materials and have shapes and dimensions imposed by international standards.
  • the sheath is brought to ground or earth potential, as is an outer casing of the cable (s), one of the manufacturers' constant concerns being that all the outer surfaces of the sheath of the connection and cables are metallic, and that there is electrical continuity between all these organs.
  • the electrical contact (s) which are made by an electrical connection device, are made in the bottom of the receptacle between first contact members secured to the end piece and second contact members secured to the receptacle and which pass through the bottom wall of the latter and thus emerge inside the sheath.
  • the receptacle plunges deep enough inside the sheath so that the end of the second contact element opens into the sheath, at a sufficient distance from the internal wall of the latter, to avoid electrical breakdown between the metal sheath which is grounded and this contact element which is at the potential of the high voltage.
  • this contact is connected by a connecting conductor to the cathode of the X-ray tube and the anode of the latter is brought to the positive polarity by another connecting conductor, inside the sheath, between the anode and another contact member of another electrical connection device.
  • the connectors have 3 or 4 pins which are distributed over a circumference having a diameter of 20.62 millimeters according to the usual standards.
  • the latter are arranged at 120 ° from one another.
  • X-ray tubes are used which include, in addition to the cathode and the anode, electrodes called grids which are used to modify the path of the electron beam emitted by the cathode or to modulate it or even better. focus it.
  • the voltages applied to these grids can be from a few tens of volts to a few kilovolts and it is therefore necessary to provide for their supply via appropriate connectors.
  • the object of the present invention is therefore to produce a high voltage connector for an X-ray tube which has five pins so as to supply this cathode with two cathode filaments and two grids.
  • the invention relates to a high-voltage connector for supplying the cathode, two cathode filaments and two grids of an X-ray tube, characterized in that it comprises five pins, one for supplying the cathode , two to supply the cathode filaments and the last two to supply the two grids, the arrangement of the pins being such that the distance between the cathode pin and a grid pin and that between the two grid pins is greater than that between a cathode pin and a cathode filament pin.
  • the pins are distributed over a circumference so that the cathode and filament pins are angularly separated by an angle which is smaller than that separating the cathode pin from that of a grid or that separating the two pins of grids or a grid pin relative to the nearest filament pin.
  • angles separating the cathode and filament pins is approximately 60 ° and in that the angle separating one grid pin from the other grid pin or from the nearest filament pin is about 80 °.
  • the high-voltage connector usually comprises a female part and a male part each in the form of a cylindrical tube fitting one in the other and is characterized in that the internal wall of the cylindrical tube of the male part has five longitudinal ribs separated in the same way as the pins, said ribs being used during assembly, to center a cable and to guide the conductors of said cable.
  • a high voltage connector for an X-ray tube comprises (FIGS. 1 and 2) a female part 21 which is tightly fixed to a wall of the sheath and a male part 22 which is movable and is fixed to the end of a cable 23 comprising a certain number of conductors.
  • the female 21 and male 22 parts have the form of elongated cylindrical tubes 24 and 31 whose dimensions are such that the male part fits easily into the female part.
  • connection pad 27 crosses the thickness of the end of the tube 24 and comprises, inside the tube, a receptacle 28 for the male plug of the connector and, on the outside, a conventional connection terminal 29 for example of the type with hole 30 and clamping screw 20 for fixing an electrical conductor for connection with an electrode of the X-ray tube.
  • the cylindrical tube 24 is terminated at the open end 25 by a first flange 32 for centering the tube in the orifice of the wall of the sheath and a second flange 33 for bearing on said wall by means of a seal. (not shown).
  • the flange 32 is provided externally with a polarizer 34 to define its position with respect to the orifice in the wall; the collar 33 is provided externally with a first locating notch 35 corresponding to the cathode pin and internally with a second notch 36 to define the position of the male part.
  • the cylindrical tube 31 of the male part of the connector is open at one end 37 (FIG. 3) to receive the cable 23 and is closed at the other end 48 to carry the male plugs 38 five in number.
  • Each male plug has a hollow base in the middle to receive a conductor of the cable 23.
  • This base has a hexagonal shape, a flap of which abuts on the internal wall and is extended by a contact 45 in the form of a cylinder of revolution which is equipped flexible strips 46 making electrical contact with the receptacle 28 of the female part. Above the base, the contact is threaded over a certain length to cooperate with a clamping ring 47.
  • Each male plug 38 is held in an orifice drilled in the end 48 by means of the ring 47 which screws onto the threaded part of contact 45.
  • the end 37 has two other holes, one 39 for filling an overmolding product and the other 40 for use as a vent during the overmolding operation. .
  • the cylindrical tube 31 is terminated at the open end 37 by a flange 41 on which is crimped a ferrule 42 which is in contact with the metallic braid 43 of the cable 23.
  • This ferrule makes it possible to ground the metallic braid of the cable.
  • the external surface of the tube 31 includes a polarizing device 44 which cooperates with the notch 36 of the tube 24.
  • the inner wall of the tube 31 has five longitudinal ribs 49 which are angularly spaced in the same way as the pins, each angular space on the wall corresponding to a pin. These ribs serve, when mounting the cable 23, on the one hand, for centering elements and, on the other hand, for guiding the five conductors 56 to 60 of the cable 23.
  • the conductors 46 to 50 are first preformed and welded to the plugs 38. Then the cable 23 is slipped into the tube 31, the ribs 45 serving as a guide for each of the plugs, so that the contacts of the plugs 38 pass through the end holes. The ring 47 is then screwed onto the threaded part of each plug to lock them in position. The metallic ferrule 42 which has been placed around the cable before it is mounted in the tube 31, is then crimped around the metallic braid 43 and the flange 41. Finally, the last operation consists in filling through the orifice 39 the internal volume of the tube 31 by an overmoulding product 50 so as to hold the cable 23 and the conductors 56 to 60 in place and to isolate the latter from each other and from ground.
  • connection pads 27, and therefore the contact plugs 38 are distributed respectively over the ends of the tubes 24 and 31 as shown in FIG. 5 which is a front view of the contact plugs of the male part 22.
  • the plug 51 corresponds to the high voltage supply of the cathode, of the order of 70 kilovolts relative to the mass.
  • the plug 52 corresponds to the supply of a cathode filament to obtain an electron beam giving rise to a large X-ray focus.
  • the plug 53 corresponds to the supply of a cathode filament to obtain an electron beam giving rise to a focus of X-rays of smaller dimensions.
  • the plug 54 corresponds to the polarization of a first grid while the plug 55 corresponds to the polarization of a second grid.
  • the plugs 52 and 53 are arranged near the plug 51 because they are substantially at the same potential as that of the cathode, to within a few tens of volts.
  • the plugs 54 and 55 must be discarded from the plugs 51, 52 and 53 because they are at potentials which are different from several kilovolts between them and with respect to the high voltage. It is therefore recommended that the distance between the cathode pin and a grid pin and that the distance between the two grid pins is greater than that between a cathode pin and a filament pin.
  • the five plugs are arranged on the same circumference having a diameter equal to the usual standards observed in the connectors 3 or 4 pins, or 20.62 millimeters. Furthermore, the five sheets are distributed angularly so that the sheets 51, 52 and 53 are separated by an angle of approximately 60 ° while the sheets 52, 53 54 and 55 are separated by an angle of approximately 80 °, which allows you to respect the distance rules indicated above.

Landscapes

  • X-Ray Techniques (AREA)

Claims (6)

  1. Hochspannungsverbinder für die Versorgung der Katode, der zwei Katodenheizdrähte und der zwei Gitter einer Röntgenröhre, dadurch gekennzeichnet, daß er fünf Anschlußstifte (27 oder 38) aufweist, einen (51) zum Speisen der Katode, zwei (52,53) zum Speisen der Katodenheizdrähte und die zwei letzten (54 oder 55) zum Speisen der zwei Gitter, wobei die Anordnung der Anschlußstifte so ist, daß der Abstand zwischen den Katodenanschlußstift (51) und einem Gitteranschlußstift (54 oder 55) und der Abstand zwischen den zwei Gitteranschlußstiften (54, 55) größer als der zwischen einem Katodenanschlußstift 51) und einem Katodenheizdrahtanschlußstift sind.
  2. Hochspannungsverbinder nach Anspruch 1, dadurch gekennzeichnet, daß die fünf Anschlußstifte auf einem Umfang so verteilt sind, daß der Katodenanschlußstift (51) zwischen den zwei Heizdrahtanschlußstiften (52, 53) liegt, und daß die zwei Gitteranschlußstifte (54, 55) zwischen den zwei Heizdrahtanschlußstiften (52, 53) angeordnet sind.
  3. Hochspannungsverbinder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Katodenanschlußstifte und die Heizdrahtanschlußstifte (52, 53) winkelmäßig durch einen Winkel voneinander getrennt sind, der kleiner als der Winkel ist, der den Katodenanschlußstift (51) von einem Gitteranschlußstift (54 oder 55) trennt, oder als der Winkel, der die zwei Gitteranschlußstifte (54, 55) von einem Gitteranschlußstift (54, 55) bezüglich des nächstliegenden Heizdrahtanschlußstifts (52 oder 53) trennt.
  4. Hochspannungsverbinder nach Anspruch 3, dadurch gekennzeichnet, daß der dem Katodenanschlußstift (51) und den Heizdrahtanschlußstift (52, 53) trennende Winkel etwa 60° beträgt und daß der einen Gitteranschlußstift 54, 55) vom anderen Gitteranschlußstift oder vom nächstliegenden Heizdrahtanschlußstift (52, 53) trennende Winkel etwa 80° beträgt.
  5. Hochspannungsverbinder nach einem der vorhergehenden Ansprüche, mit einem Buchsenteil (21) und einem Steckerteil (22) jeweils in Form eines zylindrischen Rohrs (24, 31), die ineinandergefügt sind, dadurch gekennzeichnet, daß die Innenwand des zylindrischen Rohrs (31) des Steckerteils (22) fünf in Längsrichtung verlaufende Rippen (49) aufweist, die im Winkel ebenso wie die Anschlußstifte voneinander getrennt sind, wobei die Rippen bei der Montage dazu dienen, ein Kabel (23) zu zentrieren und die Leiter (56 bis 60) des mit Steckern (38) ausgestatteten Kabels so zu führen, daß sich diese in den Montageöffnungen plazieren.
  6. Hochspannungsverbinder nach Anspruch 5, dadurch gekennzeichnet, daß der Innenraum des zylindrischen Rohrs (31) des Steckerteils (22) nach der Montage des Kabels (23) und seiner mit Steckern (38) ausgestatteten Leiter (56 bis 60) mit einem Ausgießmaterial gefüllt wird.
EP90403120A 1989-11-24 1990-11-05 Hochspannungsverbinder für Röntgenstrahlenröhre Expired - Lifetime EP0430735B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8915507 1989-11-24
FR8915507A FR2655209B1 (fr) 1989-11-24 1989-11-24 Connecteur haute tension pour tube a rayons x.

Publications (2)

Publication Number Publication Date
EP0430735A1 EP0430735A1 (de) 1991-06-05
EP0430735B1 true EP0430735B1 (de) 1994-01-26

Family

ID=9387771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403120A Expired - Lifetime EP0430735B1 (de) 1989-11-24 1990-11-05 Hochspannungsverbinder für Röntgenstrahlenröhre

Country Status (4)

Country Link
US (1) US5154638A (de)
EP (1) EP0430735B1 (de)
DE (1) DE69006331T2 (de)
FR (1) FR2655209B1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354221A (en) * 1990-03-20 1994-10-11 Reynolds Industries, Incorporated Releasable connector assembly for cathode ray tube
FR2700657B1 (fr) * 1993-01-15 1995-02-17 Gen Electric Cgr Ensemble radiogène.
NL193576C (nl) * 1994-11-25 2000-02-02 Claymount Assemblies Bv Miniatuur hoogspanningsconnectorsamenstel.
US6632100B1 (en) 1997-04-23 2003-10-14 Anthony, Inc. Lighting system method and apparatus socket assembly lamp insulator assembly and components thereof
US6638088B1 (en) 1997-04-23 2003-10-28 Anthony, Inc. Lighting circuit, lighting system method and apparatus, socket assembly, lamp insulator assembly and components thereof
US6494618B1 (en) * 2000-08-15 2002-12-17 Varian Medical Systems, Inc. High voltage receptacle for x-ray tubes
US6542577B1 (en) 2000-08-18 2003-04-01 Koninklijke Philips Electronics, N.V. Hermetically sealed stator cord for x-ray tube applications
US6452102B1 (en) 2000-12-29 2002-09-17 Pen Cabling Technologies Llc High voltage cable termination
US6556654B1 (en) 2001-11-09 2003-04-29 Varian Medical Systems, Inc. High voltage cable and clamp system for an X-ray tube
US6816574B2 (en) * 2002-08-06 2004-11-09 Varian Medical Systems, Inc. X-ray tube high voltage connector
US6922463B2 (en) * 2002-11-14 2005-07-26 Ge Medical Systems Global Technology Company, Llc Thermally high conductive HV connector for a mono-polar CT tube
US6989486B2 (en) * 2003-03-26 2006-01-24 Xoft Microtube, Inc. High voltage cable for a miniature x-ray tube
US20050136733A1 (en) * 2003-12-22 2005-06-23 Gorrell Brian E. Remote high voltage splitter block
US7445517B2 (en) * 2004-04-16 2008-11-04 Varian Medical Systems, Inc. High voltage cable assembly with ARC protection
US7150562B2 (en) * 2004-09-09 2006-12-19 Finisar Corporation High voltage cable terminal and clamp system
US8817950B2 (en) * 2011-12-22 2014-08-26 Moxtek, Inc. X-ray tube to power supply connector
WO2016011474A1 (en) * 2014-07-24 2016-01-28 Connec Limited An electrical connector
US9912093B2 (en) 2014-07-24 2018-03-06 Connec Limited Electrical connector
DE102015213810B4 (de) 2015-07-22 2021-11-25 Siemens Healthcare Gmbh Hochspannungszuführung für einen Röntgenstrahler
USD840540S1 (en) * 2016-11-23 2019-02-12 General Electric Company Connector for a medical imaging device
US11894729B2 (en) * 2021-03-13 2024-02-06 Hamilton Sundstrand Corporation Alternating current connection housing with integrated inserts

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US1542366A (en) * 1920-12-02 1925-06-16 Western Electric Co Vacuum-tube base
NL56933C (de) * 1940-04-01
US2297449A (en) * 1940-05-11 1942-09-29 Baumbach Georg Electron tube
US4127313A (en) * 1977-05-18 1978-11-28 Rca Corporation High voltage electron tube base with drip relief means
US4211465A (en) * 1979-03-23 1980-07-08 Gte Products Corporation Means for controlling dielectric flow in an electron tube base
US4379978A (en) * 1981-03-20 1983-04-12 Zenith Radio Corporation Means and method for making electrical connection to cathode ray tubes
FR2506025A1 (fr) * 1981-05-13 1982-11-19 Philips Massiot Mat Medic Diviseur pour mesure de la haute tension fournie a un tube emetteur de rayons x
FR2597206B1 (fr) * 1986-04-15 1988-06-17 Thomson Cgr Dispositif de fixation et de reglage d'un mandrin porteur de bobines de gradient
FR2601579A1 (fr) * 1986-07-18 1988-01-22 Thomson Cgr Lit d'examen, notamment pour appareil de rmn ou de tomodensitometrie.
FR2615048A1 (fr) * 1987-05-04 1988-11-10 Thomson Csf Dispositif de raccordement multicontact pour alimentation tres haute tension
FR2623996A1 (fr) * 1987-12-08 1989-06-09 Thomson Csf Dispositif de surveillance du patient dans un appareil d'examen medical

Also Published As

Publication number Publication date
DE69006331T2 (de) 1994-05-05
US5154638A (en) 1992-10-13
FR2655209A1 (fr) 1991-05-31
DE69006331D1 (de) 1994-03-10
FR2655209B1 (fr) 1992-02-14
EP0430735A1 (de) 1991-06-05

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