EP2334139B1 - Cartouche de chauffage électrique dotée d'une conduite de raccordement - Google Patents

Cartouche de chauffage électrique dotée d'une conduite de raccordement Download PDF

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Publication number
EP2334139B1
EP2334139B1 EP10015322A EP10015322A EP2334139B1 EP 2334139 B1 EP2334139 B1 EP 2334139B1 EP 10015322 A EP10015322 A EP 10015322A EP 10015322 A EP10015322 A EP 10015322A EP 2334139 B1 EP2334139 B1 EP 2334139B1
Authority
EP
European Patent Office
Prior art keywords
heating cartridge
connecting circuit
sleeve
section
contacting pin
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.)
Not-in-force
Application number
EP10015322A
Other languages
German (de)
English (en)
Other versions
EP2334139A1 (fr
Inventor
Hendrik Wölper
Andre Dunse
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.)
Hotset Heizpatronen und Zubehoer GmbH
Original Assignee
Hotset Heizpatronen und Zubehoer 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 Hotset Heizpatronen und Zubehoer GmbH filed Critical Hotset Heizpatronen und Zubehoer GmbH
Publication of EP2334139A1 publication Critical patent/EP2334139A1/fr
Application granted granted Critical
Publication of EP2334139B1 publication Critical patent/EP2334139B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material

Definitions

  • the invention relates to an electrical heating cartridge with connecting cable, wherein the heating cartridge has a metallic shell in which at least one electrical conductor is arranged insulated, which is connected to a metallic pin which protrudes from the jacket, wherein the connecting cable is exposed at an end region, surrounded in the exposed area by a housing in the form of a plastic molded part, wherein the housing surrounds a fixed at the free end of the connecting line contact socket into which the terminal pin is inserted or plugged in, wherein the housing with the heating cartridge is directly releasably connected or connectable, wherein the End of the conductor is connected to the metallic pin inside the sleeve.
  • connection line is surrounded in an end region by a dimensionally stable insulating body made of ceramic, in which the contact sleeves are arranged, said insulating body is surrounded by a metallic housing.
  • sealing elements in the form of a plug made of silicone still be accommodated in the housing and the seal between the electrical supply line and the housing and the individual parts located in the housing is problematic.
  • the detachable connection of the housing with the jacket of the heating cartridge is complicated, because in the prior art to a threaded connection is specified, but in this embodiment, the surrounding housing relative to Insulating body must be arranged rotatable together with stopper. This further leads to significant problems with respect to the sealed training and arrangement with respect to environmental influences.
  • the present invention seeks to provide an electric immersion heater with connecting cable, while maintaining the advantage of easy interchangeability of the immersion heater without connection line a simplified manufacturing, safe installation and high tightness against environmental influences such as hydraulic oil, spray - or splash water guaranteed.
  • a high tensile strength between the heating cartridge and the infected connecting cable should be achieved.
  • the invention proposes that on the heating cartridge end fitted a metallic sleeve and the mantle of the heating cartridge form-fitting and fluid-tight manner, in which the end of the electrical conductor of the immersion heater protrudes that the end of the conductor with the metallic pin is connected within the sleeve, that the connecting pin projects up to the heater cartridge facing away from the mouth of the sleeve or protrudes beyond that, that the sleeve in the region in which the end of the heating cartridge protrudes and in which the conductor is connected to the pin, as well as a part of the length of the terminal pin with insulating material, in particular a glass melt is filled, by means of which a sealed, centered and mechanically fixed arrangement of the parts takes place to one another, the sleeve has an external thread at its end facing away from the heating cartridge, the contact bush fixed at the free end of the connecting line, together with the adjoining end region of the connecting line, is surrounded by the formed plastic molded part, which ends openly
  • the tightly sealed against environmental influences arrangement and formation of a first element on the body of the heating cartridge and on the other hand, a similar training at the end the connection line, wherein both elements can be plugged into a simple manner and can be fixed by the union nut in a simple manner, with an excellent seal is achieved in the separation area between the two parts.
  • a similar training at the end the connection line wherein both elements can be plugged into a simple manner and can be fixed by the union nut in a simple manner, with an excellent seal is achieved in the separation area between the two parts.
  • the heating cartridges to be connected can be standard components that are manufactured and available in the usual way.
  • the electrical connection cable is a standard component, which is available without special measures.
  • the sealing element is an O-ring.
  • the sealing element consists of high temperature resistant silicone.
  • the plastic molded part consists of high temperature resistant, injection-moldable plastic.
  • PTFE thermosetting polytetrafluoroethylene
  • connection line has a jacket made of PTFE.
  • PTFE internal high-temperature hot melt
  • the single drawing figure shows an electric immersion heater with infected connecting cable in the central longitudinal section.
  • an electric immersion heater 1 which has a metallic shell 2.
  • This jacket is for example a tube made of stainless steel with a dimension of the order of 2-4mm is common.
  • an electrical conductor 3 is arranged, which is surrounded by an electrically insulating, heat-conducting layer 4, for example MgO.
  • a pin 5 may be provided of metal, which is connected to the electrical conductor 3 and protrudes beyond the mouth of the heating element 1, as shown in the drawing. Instead, the conductor 3 could be extended and protrude beyond the mouth of the heating cartridge 1, as the pin 5 shows.
  • the end portion or the pin 5 can with be connected to a metallic pin 6, which preferably consists of nickel.
  • the connection of the elements 5 and 6 can be effected by welding, by plug connection or in another suitable manner.
  • the connecting line 7 may be a conventional insulated conductor with internal conductor.
  • the edge 8 of the conductor is exposed, wherein the connecting line 7 is surrounded at least in the exposed area of a housing 9.
  • the housing 9 additionally surrounds a fixed at the free end of the conductor 8 contact socket 10 made of metal. In this contact socket 10, the pin 6 can be inserted or plugged into the area 11 in the drawing.
  • the housing 9 is detachably connected in the assembly target position indirectly with the heating cartridge 1.
  • a metallic sleeve 12 for example, made of stainless steel, plugged and connected in a region 13 with the jacket of the heating element 1 solid and fluid-tight.
  • a metallic sleeve 12 In the surrounded by the metallic sleeve 12 cavity fits both the end of the heating cartridge 1 and the pin 5 and the pin 6 into it.
  • the end of the conductor 3 or the pin 5 is connected to the metallic pin 6 within the sleeve 12, wherein the connecting pin 6 protrudes to the heater cartridge 1 facing away from the mouth of the sleeve 12 or even slightly beyond this.
  • insulating material 14 In the embodiment, a glass melt is provided for this purpose as an insulating material, by means of which the pin 5 and the pin 6 is centered and mechanically fixed and is sealed against the environment in the direction of the heating element 1 out.
  • the sleeve 12 has an external thread 15 at its end remote from the heating cartridge 1.
  • the fixed at the free end of the connecting line 7 contact socket 10 is surrounded together with the adjoining this end portion of the connecting line 7 of a molded plastic molded part 9. This ends with the insertion of the contact socket 10 open. This end can be inserted into the sleeve 12, so that the connecting pin 6 can slide into the contact region 11 of the contact socket 10 and sits there in contact, as shown in the drawing.
  • an outwardly projecting driver 16 in the form of a circumferential collar on which a collar 17 of a union nut 18 is supported, which is rotatably mounted on the plastic molded part 9 and with its internal thread on the External thread 15 of the sleeve 12 is screwed.
  • a sealing element is arranged (this is not shown in the drawing).
  • the plastic molded part 9 in turn is surrounded by a shrinking tube 20 in the region between the gripping of the union nut 18 with collar 17 to the emerging connecting line 7 and over a portion of the connecting line 7, which protrudes beyond the molded part 9, wherein in the desired position, a seal of this area he follows.
  • the molded part 9 ribs 21,22, in which the material of the shrink tube 20 can engage.
  • the sealing element to be arranged in the region 19 is preferably an O-ring, which consists of high temperature resistant silicone.
  • the plastic molded part 9 is preferably made of high temperature resistant plastic sprayable.
  • the shrink tube 20 is preferably a so-called dual-shrink tube, which consists of a duroplastic PTFE layer outside and the inside of a layer FEP.
  • This FEP is a high-temperature hot-melt adhesive, which melts at the appropriate temperature, which is suitable for shrinking the shrink tube 20, and connects excellently and tightly with the PTFE jacket of the connecting line 7.
  • the union nut can be designed as an M5 nut, with the entire coupling element preferably maintaining a maximum diameter of approximately 6 mm.
  • the invention provides a high-temperature resistant element consisting of an electric immersion heater 1, a connecting line 7 and coupling elements available, being created by the inventive arrangement easy handling for connection and to release the connecting cable from the heating element, a high density of the overall device against environmental influences is and a cost-effective production of the individual elements is realized.

Landscapes

  • Resistance Heating (AREA)
  • Pipe Accessories (AREA)

Claims (6)

  1. Cartouche de chauffage électrique (1) dotée d'une conduite de raccordement (7), la cartouche de chauffage (1) comprenant une enveloppe métallique (2), dans laquelle au moins un fil conducteur électrique (3) est arrangé de manière isolée et est lié à une broche métallique (6) qui est saillante sur l'enveloppe (2), la conduite de raccordement (7) étant libérée à une zone d'extrémité, est entourée dans la zone libérée par un boîtier sous la forme d'une pièce moulée en matière plastique (9), le boîtier entourant un contact femelle (10) fixé à l'extrémité libre de la conduite de raccordement (7), dans laquelle la broche (6) peut être enfichée ou est enfichée, le boîtier étant lié ou peut être lié à la cartouche de chauffage (1) de manière immédiatement détachable, l'extrémité du fil conducteur (3, 5) étant liée à la broche métallique (6) au-dedans de la douille (12),
    caractérisée en ce qu'une douille (12) métallique est enfichée du côté de l'extrémité sur la cartouche de chauffage (1) et est liée à l'enveloppe (2) de la cartouche de chauffage (1) en forme fixe et de façon étanche au fluide, dans laquelle l'extrémité du fil conducteur électrique (3, 5) de la cartouche de chauffage (1) s'étend,
    que la broche (6) est saillant jusqu'à l'embouchure de la douille (12) opposée à la cartouche de chauffage (1) ou dépasse au-dessus de celle-ci,
    que la douille (12) est remplie dans la zone, dans laquelle l'extrémité de la cartouche de chauffage (1) s'étend et le fil conducteur (3, 5) est lié à la broche (6), et sur une partie de la longueur de la broche (6), d'un matériau isolant (14), en particulier du verre en fusion, au moyen duquel un dispositif des pièces étanche, centré et mécaniquement rigide les uns par rapport aux autres est obtenu,
    que la douille (12) a un filetage extérieur (15) à son extrémité opposée à la cartouche de chauffage (1),
    que le contact femelle (10) fixé à l'extrémité libre de la conduite de raccordement (7) avec la zone d'extrémité suivante de la conduite de raccordement (7) est entouré d'une pièce moulée en matière plastique (9) surmoulée, qui prend fin sous forme ouverte avec l'orifice d'enfichage du contact femelle (10) et peut être enfichée dans la douille (12), de sorte que la broche (6) s'engage dans le contact femelle (10),
    qu'un organe d'entraînement (16) dépassant vers l'extérieur est formé à l'enveloppe de la pièce moulée en matière plastique (9) à distance de son extrémité ouverte, à cet organe d'entraînement (16) une collerette (17) d'un écrou-chapeau (18) prenant appui, qui est arrangé de manière tournante sur la pièce moulée en matière plastique (9) et peut être vissé ou est vissé avec son filetage intérieur sur le filetage extérieure (15) de la douille (12), un élément d'étanchéité étant arrangé dans une zone (19) entre une face avant de l'organe d'entraînement (16) et une face avant de la douille (12), et
    qu'enfin la pièce moulée en matière plastique (9) est entourée d'une gaine rétractable (20) et est étanchée par celle-ci dans la zone entre l'enveloppe de l'écrou-chapeau (18) jusqu'à la conduite de raccordement (7) sortante et sur une zone partielle de la conduite de raccordement (7) faisant saillie sur la pièce moulée (9).
  2. Cartouche de chauffage dotée d'une conduite de raccordement selon la revendication 1, caractérisée en ce que l'élément d'étanchéité est un joint torique.
  3. Cartouche de chauffage dotée d'une conduite de raccordement selon une des revendications 1 ou 2, caractérisée en ce que l'élément d'étanchéité est en silicone résistante à haute température.
  4. Cartouche de chauffage dotée d'une conduite de raccordement selon une des revendications 1 à 3, caractérisée en ce que la pièce moulée en matière plastique (9) est en matière plastique résistante à haute température et pouvant être injectée.
  5. Cartouche de chauffage dotée d'une conduite de raccordement selon une des revendications 1 à 4, caractérisée en ce que la gaine rétractable (20) se compose à son extérieur d'une couche en polytétrafluoroéthylène thermodurcissable (PTFE) et à son intérieur d'un caoutchouc de protection, de préférence FEP.
  6. Cartouche de chauffage dotée d'une conduite de raccordement selon une des revendications 1 à 5, caractérisée en ce que la conduite de raccordement (7) comprend une enveloppe (23) en PTFE.
EP10015322A 2009-12-14 2010-12-06 Cartouche de chauffage électrique dotée d'une conduite de raccordement Not-in-force EP2334139B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009044877A DE102009044877B4 (de) 2009-12-14 2009-12-14 Elektrische Heizpatrone mit Anschlussleitung

Publications (2)

Publication Number Publication Date
EP2334139A1 EP2334139A1 (fr) 2011-06-15
EP2334139B1 true EP2334139B1 (fr) 2013-02-13

Family

ID=43607816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10015322A Not-in-force EP2334139B1 (fr) 2009-12-14 2010-12-06 Cartouche de chauffage électrique dotée d'une conduite de raccordement

Country Status (4)

Country Link
US (1) US8383996B2 (fr)
EP (1) EP2334139B1 (fr)
CN (1) CN102098816B (fr)
DE (1) DE102009044877B4 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2967723B1 (fr) * 2010-11-24 2015-11-13 Inergy Automotive Systems Res Reservoir de stockage pour additif de gaz d'echappement d'un moteur
EP2933578B1 (fr) * 2014-04-14 2019-06-26 Mahle Behr France Rouffach S.A.S Chauffage électrique
CN104185319A (zh) * 2014-09-04 2014-12-03 刘占友 能实现涡流式热循环的液体发热棒
KR101647276B1 (ko) * 2015-07-17 2016-08-10 배경석 열전도 차단 및 방수기능을 갖는 리드선 연결부를 구비한 카트리지히터
CN109373579A (zh) * 2018-12-04 2019-02-22 山东天鹅棉业机械股份有限公司 棉花风道电加热管固定结构及热风炉
DE102019127686A1 (de) * 2019-10-15 2021-04-15 Türk & Hillinger GmbH Durchführung für eine elektrische Heizvorrichtung, elektrische Heizvorrichtung mit einer solchen Durchführung, System mit einer solchen Durchführung und Verfahren zur Herstellung einer solchen Durchführung
KR102189813B1 (ko) * 2020-02-18 2020-12-11 김한규 단조금형에 적용되는 히팅유닛

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
GB606597A (en) * 1946-01-16 1948-08-17 Herbert Bruce William Holt Improvements in or relating to electric heating devices
US2840676A (en) * 1956-05-18 1958-06-24 Mc Graw Edison Co Waterproof electrical couplings and heating element
GB837174A (en) * 1957-03-26 1960-06-09 Westinghouse Electric Corp Improvements in or relating to electric heater assembles
DE1079754B (de) * 1957-03-26 1960-04-14 Westinghouse Electric Corp Heizeinsatz fuer Druckkessel
AT340984B (de) * 1974-11-13 1978-01-10 Siemens Ag Oesterreich Steckbare reversibel losbare anschlussverbindung fur elektrische weichenheizstabe
DE2820132C3 (de) * 1978-05-09 1982-03-11 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Elektrische Anschlußeinrichtung
DE3427207A1 (de) 1984-07-24 1986-02-06 Hotset Heizpatronen und Zubehör GmbH, 5880 Lüdenscheid Leiteranschlussvorrichtung an einem elektrischen patronenheizkoerper
DE29720748U1 (de) * 1997-11-22 1999-03-18 Barlian, Reinhold, Dipl.-Ing. (FH), 97980 Bad Mergentheim Einrichtung zum Anschließen und Verbinden einer Leitung
CN2580720Y (zh) * 2002-11-01 2003-10-15 中国核动力研究设计院 套管式电加热元件

Also Published As

Publication number Publication date
US8383996B2 (en) 2013-02-26
CN102098816B (zh) 2014-11-19
DE102009044877B4 (de) 2013-02-21
CN102098816A (zh) 2011-06-15
DE102009044877A1 (de) 2011-06-16
EP2334139A1 (fr) 2011-06-15
US20110139768A1 (en) 2011-06-16

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